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7554 lines
205 KiB
7554 lines
205 KiB
/*
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* Copyright © 2008-2011 Kristian Høgsberg
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* Copyright © 2011 Intel Corporation
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* Copyright © 2017, 2018 Collabora, Ltd.
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* Copyright © 2017, 2018 General Electric Company
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* Copyright (c) 2018 DisplayLink (UK) Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "config.h"
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#include <errno.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <linux/input.h>
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#include <linux/vt.h>
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#include <assert.h>
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#include <sys/mman.h>
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#include <dlfcn.h>
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#include <time.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include <drm_fourcc.h>
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#include <gbm.h>
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#include <libudev.h>
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#include "compositor.h"
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#include "compositor-drm.h"
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#include "weston-debug.h"
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#include "shared/helpers.h"
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#include "shared/timespec-util.h"
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#include "gl-renderer.h"
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#include "weston-egl-ext.h"
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#include "pixman-renderer.h"
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#include "pixel-formats.h"
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#include "libbacklight.h"
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#include "libinput-seat.h"
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#include "launcher-util.h"
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#include "vaapi-recorder.h"
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#include "presentation-time-server-protocol.h"
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#include "linux-dmabuf.h"
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#include "linux-dmabuf-unstable-v1-server-protocol.h"
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#ifndef DRM_CLIENT_CAP_ASPECT_RATIO
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#define DRM_CLIENT_CAP_ASPECT_RATIO 4
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#endif
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#ifndef GBM_BO_USE_CURSOR
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#define GBM_BO_USE_CURSOR GBM_BO_USE_CURSOR_64X64
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#endif
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#ifndef GBM_BO_USE_LINEAR
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#define GBM_BO_USE_LINEAR (1 << 4)
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#endif
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/**
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* A small wrapper to print information into the 'drm-backend' debug scope.
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*
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* The following conventions are used to print variables:
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*
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* - fixed uint32_t values, including Weston object IDs such as weston_output
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* IDs, DRM object IDs such as CRTCs or properties, and GBM/DRM formats:
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* "%lu (0x%lx)" (unsigned long) value, (unsigned long) value
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*
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* - fixed uint64_t values, such as DRM property values (including object IDs
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* when used as a value):
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* "%llu (0x%llx)" (unsigned long long) value, (unsigned long long) value
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*
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* - non-fixed-width signed int:
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* "%d" value
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*
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* - non-fixed-width unsigned int:
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* "%u (0x%x)" value, value
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*
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* - non-fixed-width unsigned long:
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* "%lu (0x%lx)" value, value
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*
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* Either the integer or hexadecimal forms may be omitted if it is known that
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* one representation is not useful (e.g. width/height in hex are rarely what
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* you want).
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*
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* This is to avoid implicit widening or narrowing when we use fixed-size
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* types: uint32_t can be resolved by either unsigned int or unsigned long
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* on a 32-bit system but only unsigned int on a 64-bit system, with uint64_t
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* being unsigned long long on a 32-bit system and unsigned long on a 64-bit
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* system. To avoid confusing side effects, we explicitly cast to the widest
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* possible type and use a matching format specifier.
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*/
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#define drm_debug(b, ...) \
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weston_debug_scope_printf((b)->debug, __VA_ARGS__)
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#define MAX_CLONED_CONNECTORS 4
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/**
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* aspect ratio info taken from the drmModeModeInfo flag bits 19-22,
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* which should be used to fill the aspect ratio field in weston_mode.
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*/
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#define DRM_MODE_FLAG_PIC_AR_BITS_POS 19
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#ifndef DRM_MODE_FLAG_PIC_AR_MASK
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#define DRM_MODE_FLAG_PIC_AR_MASK (0xF << DRM_MODE_FLAG_PIC_AR_BITS_POS)
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#endif
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/**
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* Represents the values of an enum-type KMS property
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*/
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struct drm_property_enum_info {
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const char *name; /**< name as string (static, not freed) */
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bool valid; /**< true if value is supported; ignore if false */
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uint64_t value; /**< raw value */
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};
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/**
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* Holds information on a DRM property, including its ID and the enum
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* values it holds.
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*
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* DRM properties are allocated dynamically, and maintained as DRM objects
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* within the normal object ID space; they thus do not have a stable ID
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* to refer to. This includes enum values, which must be referred to by
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* integer values, but these are not stable.
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*
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* drm_property_info allows a cache to be maintained where Weston can use
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* enum values internally to refer to properties, with the mapping to DRM
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* ID values being maintained internally.
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*/
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struct drm_property_info {
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const char *name; /**< name as string (static, not freed) */
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uint32_t prop_id; /**< KMS property object ID */
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unsigned int num_enum_values; /**< number of enum values */
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struct drm_property_enum_info *enum_values; /**< array of enum values */
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};
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/**
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* List of properties attached to DRM planes
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*/
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enum wdrm_plane_property {
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WDRM_PLANE_TYPE = 0,
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WDRM_PLANE_SRC_X,
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WDRM_PLANE_SRC_Y,
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WDRM_PLANE_SRC_W,
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WDRM_PLANE_SRC_H,
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WDRM_PLANE_CRTC_X,
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WDRM_PLANE_CRTC_Y,
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WDRM_PLANE_CRTC_W,
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WDRM_PLANE_CRTC_H,
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WDRM_PLANE_FB_ID,
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WDRM_PLANE_CRTC_ID,
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WDRM_PLANE_IN_FORMATS,
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WDRM_PLANE__COUNT
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};
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/**
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* Possible values for the WDRM_PLANE_TYPE property.
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*/
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enum wdrm_plane_type {
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WDRM_PLANE_TYPE_PRIMARY = 0,
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WDRM_PLANE_TYPE_CURSOR,
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WDRM_PLANE_TYPE_OVERLAY,
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WDRM_PLANE_TYPE__COUNT
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};
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static struct drm_property_enum_info plane_type_enums[] = {
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[WDRM_PLANE_TYPE_PRIMARY] = {
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.name = "Primary",
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},
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[WDRM_PLANE_TYPE_OVERLAY] = {
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.name = "Overlay",
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},
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[WDRM_PLANE_TYPE_CURSOR] = {
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.name = "Cursor",
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},
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};
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static const struct drm_property_info plane_props[] = {
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[WDRM_PLANE_TYPE] = {
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.name = "type",
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.enum_values = plane_type_enums,
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.num_enum_values = WDRM_PLANE_TYPE__COUNT,
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},
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[WDRM_PLANE_SRC_X] = { .name = "SRC_X", },
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[WDRM_PLANE_SRC_Y] = { .name = "SRC_Y", },
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[WDRM_PLANE_SRC_W] = { .name = "SRC_W", },
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[WDRM_PLANE_SRC_H] = { .name = "SRC_H", },
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[WDRM_PLANE_CRTC_X] = { .name = "CRTC_X", },
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[WDRM_PLANE_CRTC_Y] = { .name = "CRTC_Y", },
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[WDRM_PLANE_CRTC_W] = { .name = "CRTC_W", },
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[WDRM_PLANE_CRTC_H] = { .name = "CRTC_H", },
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[WDRM_PLANE_FB_ID] = { .name = "FB_ID", },
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[WDRM_PLANE_CRTC_ID] = { .name = "CRTC_ID", },
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[WDRM_PLANE_IN_FORMATS] = { .name = "IN_FORMATS" },
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};
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/**
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* List of properties attached to a DRM connector
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*/
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enum wdrm_connector_property {
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WDRM_CONNECTOR_EDID = 0,
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WDRM_CONNECTOR_DPMS,
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WDRM_CONNECTOR_CRTC_ID,
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WDRM_CONNECTOR_NON_DESKTOP,
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WDRM_CONNECTOR__COUNT
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};
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enum wdrm_dpms_state {
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WDRM_DPMS_STATE_OFF = 0,
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WDRM_DPMS_STATE_ON,
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WDRM_DPMS_STATE_STANDBY, /* unused */
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WDRM_DPMS_STATE_SUSPEND, /* unused */
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WDRM_DPMS_STATE__COUNT
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};
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static struct drm_property_enum_info dpms_state_enums[] = {
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[WDRM_DPMS_STATE_OFF] = {
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.name = "Off",
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},
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[WDRM_DPMS_STATE_ON] = {
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.name = "On",
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},
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[WDRM_DPMS_STATE_STANDBY] = {
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.name = "Standby",
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},
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[WDRM_DPMS_STATE_SUSPEND] = {
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.name = "Suspend",
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},
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};
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static const struct drm_property_info connector_props[] = {
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[WDRM_CONNECTOR_EDID] = { .name = "EDID" },
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[WDRM_CONNECTOR_DPMS] = {
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.name = "DPMS",
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.enum_values = dpms_state_enums,
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.num_enum_values = WDRM_DPMS_STATE__COUNT,
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},
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[WDRM_CONNECTOR_CRTC_ID] = { .name = "CRTC_ID", },
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[WDRM_CONNECTOR_NON_DESKTOP] = { .name = "non-desktop", },
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};
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/**
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* List of properties attached to DRM CRTCs
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*/
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enum wdrm_crtc_property {
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WDRM_CRTC_MODE_ID = 0,
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WDRM_CRTC_ACTIVE,
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WDRM_CRTC__COUNT
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};
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static const struct drm_property_info crtc_props[] = {
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[WDRM_CRTC_MODE_ID] = { .name = "MODE_ID", },
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[WDRM_CRTC_ACTIVE] = { .name = "ACTIVE", },
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};
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/**
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* Mode for drm_output_state_duplicate.
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*/
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enum drm_output_state_duplicate_mode {
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DRM_OUTPUT_STATE_CLEAR_PLANES, /**< reset all planes to off */
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DRM_OUTPUT_STATE_PRESERVE_PLANES, /**< preserve plane state */
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};
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/**
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* Mode for drm_pending_state_apply and co.
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*/
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enum drm_state_apply_mode {
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DRM_STATE_APPLY_SYNC, /**< state fully processed */
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DRM_STATE_APPLY_ASYNC, /**< state pending event delivery */
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DRM_STATE_TEST_ONLY, /**< test if the state can be applied */
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};
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struct drm_backend {
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struct weston_backend base;
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struct weston_compositor *compositor;
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struct udev *udev;
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struct wl_event_source *drm_source;
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struct udev_monitor *udev_monitor;
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struct wl_event_source *udev_drm_source;
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struct {
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int id;
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int fd;
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char *filename;
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} drm;
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struct gbm_device *gbm;
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struct wl_listener session_listener;
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uint32_t gbm_format;
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/* we need these parameters in order to not fail drmModeAddFB2()
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* due to out of bounds dimensions, and then mistakenly set
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* sprites_are_broken:
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*/
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int min_width, max_width;
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int min_height, max_height;
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struct wl_list plane_list;
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int sprites_are_broken;
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int sprites_hidden;
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void *repaint_data;
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bool state_invalid;
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/* CRTC IDs not used by any enabled output. */
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struct wl_array unused_crtcs;
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int cursors_are_broken;
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bool universal_planes;
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bool atomic_modeset;
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int use_pixman;
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bool use_pixman_shadow;
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struct udev_input input;
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int32_t cursor_width;
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int32_t cursor_height;
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uint32_t pageflip_timeout;
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bool shutting_down;
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bool aspect_ratio_supported;
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bool fb_modifiers;
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struct weston_debug_scope *debug;
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};
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struct drm_mode {
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struct weston_mode base;
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drmModeModeInfo mode_info;
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uint32_t blob_id;
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};
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enum drm_fb_type {
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BUFFER_INVALID = 0, /**< never used */
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BUFFER_CLIENT, /**< directly sourced from client */
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BUFFER_DMABUF, /**< imported from linux_dmabuf client */
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BUFFER_PIXMAN_DUMB, /**< internal Pixman rendering */
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BUFFER_GBM_SURFACE, /**< internal EGL rendering */
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BUFFER_CURSOR, /**< internal cursor buffer */
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};
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struct drm_fb {
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enum drm_fb_type type;
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int refcnt;
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uint32_t fb_id, size;
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uint32_t handles[4];
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uint32_t strides[4];
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uint32_t offsets[4];
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int num_planes;
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const struct pixel_format_info *format;
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uint64_t modifier;
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int width, height;
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int fd;
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struct weston_buffer_reference buffer_ref;
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/* Used by gbm fbs */
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struct gbm_bo *bo;
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struct gbm_surface *gbm_surface;
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/* Used by dumb fbs */
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void *map;
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};
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struct drm_edid {
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char eisa_id[13];
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char monitor_name[13];
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char pnp_id[5];
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char serial_number[13];
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};
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/**
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* Pending state holds one or more drm_output_state structures, collected from
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* performing repaint. This pending state is transient, and only lives between
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* beginning a repaint group and flushing the results: after flush, each
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* output state will complete and be retired separately.
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*/
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struct drm_pending_state {
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struct drm_backend *backend;
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struct wl_list output_list;
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};
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enum drm_output_propose_state_mode {
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DRM_OUTPUT_PROPOSE_STATE_MIXED, /**< mix renderer & planes */
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DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY, /**< only assign to renderer & cursor */
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DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY, /**< no renderer use, only planes */
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};
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/*
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* Output state holds the dynamic state for one Weston output, i.e. a KMS CRTC,
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* plus >= 1 each of encoder/connector/plane. Since everything but the planes
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* is currently statically assigned per-output, we mainly use this to track
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* plane state.
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*
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* pending_state is set when the output state is owned by a pending_state,
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* i.e. when it is being constructed and has not yet been applied. When the
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* output state has been applied, the owning pending_state is freed.
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*/
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struct drm_output_state {
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struct drm_pending_state *pending_state;
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struct drm_output *output;
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struct wl_list link;
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enum dpms_enum dpms;
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struct wl_list plane_list;
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};
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/**
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* Plane state holds the dynamic state for a plane: where it is positioned,
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* and which buffer it is currently displaying.
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*
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* The plane state is owned by an output state, except when setting an initial
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* state. See drm_output_state for notes on state object lifetime.
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*/
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struct drm_plane_state {
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struct drm_plane *plane;
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struct drm_output *output;
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struct drm_output_state *output_state;
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struct drm_fb *fb;
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struct weston_view *ev; /**< maintained for drm_assign_planes only */
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int32_t src_x, src_y;
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uint32_t src_w, src_h;
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int32_t dest_x, dest_y;
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uint32_t dest_w, dest_h;
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bool complete;
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struct wl_list link; /* drm_output_state::plane_list */
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};
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/**
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* A plane represents one buffer, positioned within a CRTC, and stacked
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* relative to other planes on the same CRTC.
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*
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* Each CRTC has a 'primary plane', which use used to display the classic
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* framebuffer contents, as accessed through the legacy drmModeSetCrtc
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* call (which combines setting the CRTC's actual physical mode, and the
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* properties of the primary plane).
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*
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* The cursor plane also has its own alternate legacy API.
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*
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* Other planes are used opportunistically to display content we do not
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* wish to blit into the primary plane. These non-primary/cursor planes
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* are referred to as 'sprites'.
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*/
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struct drm_plane {
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struct weston_plane base;
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struct drm_backend *backend;
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enum wdrm_plane_type type;
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uint32_t possible_crtcs;
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uint32_t plane_id;
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uint32_t count_formats;
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struct drm_property_info props[WDRM_PLANE__COUNT];
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/* The last state submitted to the kernel for this plane. */
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struct drm_plane_state *state_cur;
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struct wl_list link;
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struct {
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uint32_t format;
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uint32_t count_modifiers;
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uint64_t *modifiers;
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} formats[];
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};
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struct drm_head {
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struct weston_head base;
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struct drm_backend *backend;
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drmModeConnector *connector;
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uint32_t connector_id;
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struct drm_edid edid;
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|
|
/* Holds the properties for the connector */
|
|
struct drm_property_info props_conn[WDRM_CONNECTOR__COUNT];
|
|
|
|
struct backlight *backlight;
|
|
|
|
drmModeModeInfo inherited_mode; /**< Original mode on the connector */
|
|
uint32_t inherited_crtc_id; /**< Original CRTC assignment */
|
|
};
|
|
|
|
struct drm_output {
|
|
struct weston_output base;
|
|
struct drm_backend *backend;
|
|
|
|
uint32_t crtc_id; /* object ID to pass to DRM functions */
|
|
int pipe; /* index of CRTC in resource array / bitmasks */
|
|
|
|
/* Holds the properties for the CRTC */
|
|
struct drm_property_info props_crtc[WDRM_CRTC__COUNT];
|
|
|
|
int vblank_pending;
|
|
int page_flip_pending;
|
|
int atomic_complete_pending;
|
|
int destroy_pending;
|
|
int disable_pending;
|
|
int dpms_off_pending;
|
|
|
|
struct drm_fb *gbm_cursor_fb[2];
|
|
struct drm_plane *cursor_plane;
|
|
struct weston_view *cursor_view;
|
|
int current_cursor;
|
|
|
|
struct gbm_surface *gbm_surface;
|
|
uint32_t gbm_format;
|
|
uint32_t gbm_bo_flags;
|
|
|
|
/* Plane being displayed directly on the CRTC */
|
|
struct drm_plane *scanout_plane;
|
|
|
|
/* The last state submitted to the kernel for this CRTC. */
|
|
struct drm_output_state *state_cur;
|
|
/* The previously-submitted state, where the hardware has not
|
|
* yet acknowledged completion of state_cur. */
|
|
struct drm_output_state *state_last;
|
|
|
|
struct drm_fb *dumb[2];
|
|
pixman_image_t *image[2];
|
|
int current_image;
|
|
pixman_region32_t previous_damage;
|
|
|
|
struct vaapi_recorder *recorder;
|
|
struct wl_listener recorder_frame_listener;
|
|
|
|
struct wl_event_source *pageflip_timer;
|
|
|
|
bool virtual;
|
|
|
|
submit_frame_cb virtual_submit_frame;
|
|
};
|
|
|
|
static const char *const aspect_ratio_as_string[] = {
|
|
[WESTON_MODE_PIC_AR_NONE] = "",
|
|
[WESTON_MODE_PIC_AR_4_3] = " 4:3",
|
|
[WESTON_MODE_PIC_AR_16_9] = " 16:9",
|
|
[WESTON_MODE_PIC_AR_64_27] = " 64:27",
|
|
[WESTON_MODE_PIC_AR_256_135] = " 256:135",
|
|
};
|
|
|
|
static const char *const drm_output_propose_state_mode_as_string[] = {
|
|
[DRM_OUTPUT_PROPOSE_STATE_MIXED] = "mixed state",
|
|
[DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY] = "render-only state",
|
|
[DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY] = "plane-only state"
|
|
};
|
|
|
|
static struct gl_renderer_interface *gl_renderer;
|
|
|
|
static const char default_seat[] = "seat0";
|
|
|
|
static void
|
|
wl_array_remove_uint32(struct wl_array *array, uint32_t elm)
|
|
{
|
|
uint32_t *pos, *end;
|
|
|
|
end = (uint32_t *) ((char *) array->data + array->size);
|
|
|
|
wl_array_for_each(pos, array) {
|
|
if (*pos != elm)
|
|
continue;
|
|
|
|
array->size -= sizeof(*pos);
|
|
if (pos + 1 == end)
|
|
break;
|
|
|
|
memmove(pos, pos + 1, (char *) end - (char *) (pos + 1));
|
|
break;
|
|
}
|
|
}
|
|
|
|
static inline struct drm_head *
|
|
to_drm_head(struct weston_head *base)
|
|
{
|
|
return container_of(base, struct drm_head, base);
|
|
}
|
|
|
|
static inline struct drm_output *
|
|
to_drm_output(struct weston_output *base)
|
|
{
|
|
return container_of(base, struct drm_output, base);
|
|
}
|
|
|
|
static inline struct drm_backend *
|
|
to_drm_backend(struct weston_compositor *base)
|
|
{
|
|
return container_of(base->backend, struct drm_backend, base);
|
|
}
|
|
|
|
static int
|
|
pageflip_timeout(void *data) {
|
|
/*
|
|
* Our timer just went off, that means we're not receiving drm
|
|
* page flip events anymore for that output. Let's gracefully exit
|
|
* weston with a return value so devs can debug what's going on.
|
|
*/
|
|
struct drm_output *output = data;
|
|
struct weston_compositor *compositor = output->base.compositor;
|
|
|
|
weston_log("Pageflip timeout reached on output %s, your "
|
|
"driver is probably buggy! Exiting.\n",
|
|
output->base.name);
|
|
weston_compositor_exit_with_code(compositor, EXIT_FAILURE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Creates the pageflip timer. Note that it isn't armed by default */
|
|
static int
|
|
drm_output_pageflip_timer_create(struct drm_output *output)
|
|
{
|
|
struct wl_event_loop *loop = NULL;
|
|
struct weston_compositor *ec = output->base.compositor;
|
|
|
|
loop = wl_display_get_event_loop(ec->wl_display);
|
|
assert(loop);
|
|
output->pageflip_timer = wl_event_loop_add_timer(loop,
|
|
pageflip_timeout,
|
|
output);
|
|
|
|
if (output->pageflip_timer == NULL) {
|
|
weston_log("creating drm pageflip timer failed: %m\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline struct drm_mode *
|
|
to_drm_mode(struct weston_mode *base)
|
|
{
|
|
return container_of(base, struct drm_mode, base);
|
|
}
|
|
|
|
/**
|
|
* Get the current value of a KMS property
|
|
*
|
|
* Given a drmModeObjectGetProperties return, as well as the drm_property_info
|
|
* for the target property, return the current value of that property,
|
|
* with an optional default. If the property is a KMS enum type, the return
|
|
* value will be translated into the appropriate internal enum.
|
|
*
|
|
* If the property is not present, the default value will be returned.
|
|
*
|
|
* @param info Internal structure for property to look up
|
|
* @param props Raw KMS properties for the target object
|
|
* @param def Value to return if property is not found
|
|
*/
|
|
static uint64_t
|
|
drm_property_get_value(struct drm_property_info *info,
|
|
const drmModeObjectProperties *props,
|
|
uint64_t def)
|
|
{
|
|
unsigned int i;
|
|
|
|
if (info->prop_id == 0)
|
|
return def;
|
|
|
|
for (i = 0; i < props->count_props; i++) {
|
|
unsigned int j;
|
|
|
|
if (props->props[i] != info->prop_id)
|
|
continue;
|
|
|
|
/* Simple (non-enum) types can return the value directly */
|
|
if (info->num_enum_values == 0)
|
|
return props->prop_values[i];
|
|
|
|
/* Map from raw value to enum value */
|
|
for (j = 0; j < info->num_enum_values; j++) {
|
|
if (!info->enum_values[j].valid)
|
|
continue;
|
|
if (info->enum_values[j].value != props->prop_values[i])
|
|
continue;
|
|
|
|
return j;
|
|
}
|
|
|
|
/* We don't have a mapping for this enum; return default. */
|
|
break;
|
|
}
|
|
|
|
return def;
|
|
}
|
|
|
|
/**
|
|
* Cache DRM property values
|
|
*
|
|
* Update a per-object array of drm_property_info structures, given the
|
|
* DRM properties of the object.
|
|
*
|
|
* Call this every time an object newly appears (note that only connectors
|
|
* can be hotplugged), the first time it is seen, or when its status changes
|
|
* in a way which invalidates the potential property values (currently, the
|
|
* only case for this is connector hotplug).
|
|
*
|
|
* This updates the property IDs and enum values within the drm_property_info
|
|
* array.
|
|
*
|
|
* DRM property enum values are dynamic at runtime; the user must query the
|
|
* property to find out the desired runtime value for a requested string
|
|
* name. Using the 'type' field on planes as an example, there is no single
|
|
* hardcoded constant for primary plane types; instead, the property must be
|
|
* queried at runtime to find the value associated with the string "Primary".
|
|
*
|
|
* This helper queries and caches the enum values, to allow us to use a set
|
|
* of compile-time-constant enums portably across various implementations.
|
|
* The values given in enum_names are searched for, and stored in the
|
|
* same-indexed field of the map array.
|
|
*
|
|
* @param b DRM backend object
|
|
* @param src DRM property info array to source from
|
|
* @param info DRM property info array to copy into
|
|
* @param num_infos Number of entries in the source array
|
|
* @param props DRM object properties for the object
|
|
*/
|
|
static void
|
|
drm_property_info_populate(struct drm_backend *b,
|
|
const struct drm_property_info *src,
|
|
struct drm_property_info *info,
|
|
unsigned int num_infos,
|
|
drmModeObjectProperties *props)
|
|
{
|
|
drmModePropertyRes *prop;
|
|
unsigned i, j;
|
|
|
|
for (i = 0; i < num_infos; i++) {
|
|
unsigned int j;
|
|
|
|
info[i].name = src[i].name;
|
|
info[i].prop_id = 0;
|
|
info[i].num_enum_values = src[i].num_enum_values;
|
|
|
|
if (src[i].num_enum_values == 0)
|
|
continue;
|
|
|
|
info[i].enum_values =
|
|
malloc(src[i].num_enum_values *
|
|
sizeof(*info[i].enum_values));
|
|
assert(info[i].enum_values);
|
|
for (j = 0; j < info[i].num_enum_values; j++) {
|
|
info[i].enum_values[j].name = src[i].enum_values[j].name;
|
|
info[i].enum_values[j].valid = false;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < props->count_props; i++) {
|
|
unsigned int k;
|
|
|
|
prop = drmModeGetProperty(b->drm.fd, props->props[i]);
|
|
if (!prop)
|
|
continue;
|
|
|
|
for (j = 0; j < num_infos; j++) {
|
|
if (!strcmp(prop->name, info[j].name))
|
|
break;
|
|
}
|
|
|
|
/* We don't know/care about this property. */
|
|
if (j == num_infos) {
|
|
#ifdef DEBUG
|
|
weston_log("DRM debug: unrecognized property %u '%s'\n",
|
|
prop->prop_id, prop->name);
|
|
#endif
|
|
drmModeFreeProperty(prop);
|
|
continue;
|
|
}
|
|
|
|
if (info[j].num_enum_values == 0 &&
|
|
(prop->flags & DRM_MODE_PROP_ENUM)) {
|
|
weston_log("DRM: expected property %s to not be an"
|
|
" enum, but it is; ignoring\n", prop->name);
|
|
drmModeFreeProperty(prop);
|
|
continue;
|
|
}
|
|
|
|
info[j].prop_id = props->props[i];
|
|
|
|
if (info[j].num_enum_values == 0) {
|
|
drmModeFreeProperty(prop);
|
|
continue;
|
|
}
|
|
|
|
if (!(prop->flags & DRM_MODE_PROP_ENUM)) {
|
|
weston_log("DRM: expected property %s to be an enum,"
|
|
" but it is not; ignoring\n", prop->name);
|
|
drmModeFreeProperty(prop);
|
|
info[j].prop_id = 0;
|
|
continue;
|
|
}
|
|
|
|
for (k = 0; k < info[j].num_enum_values; k++) {
|
|
int l;
|
|
|
|
for (l = 0; l < prop->count_enums; l++) {
|
|
if (!strcmp(prop->enums[l].name,
|
|
info[j].enum_values[k].name))
|
|
break;
|
|
}
|
|
|
|
if (l == prop->count_enums)
|
|
continue;
|
|
|
|
info[j].enum_values[k].valid = true;
|
|
info[j].enum_values[k].value = prop->enums[l].value;
|
|
}
|
|
|
|
drmModeFreeProperty(prop);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
for (i = 0; i < num_infos; i++) {
|
|
if (info[i].prop_id == 0)
|
|
weston_log("DRM warning: property '%s' missing\n",
|
|
info[i].name);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Free DRM property information
|
|
*
|
|
* Frees all memory associated with a DRM property info array and zeroes
|
|
* it out, leaving it usable for a further drm_property_info_update() or
|
|
* drm_property_info_free().
|
|
*
|
|
* @param info DRM property info array
|
|
* @param num_props Number of entries in array to free
|
|
*/
|
|
static void
|
|
drm_property_info_free(struct drm_property_info *info, int num_props)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < num_props; i++)
|
|
free(info[i].enum_values);
|
|
|
|
memset(info, 0, sizeof(*info) * num_props);
|
|
}
|
|
|
|
static void
|
|
drm_output_set_cursor(struct drm_output_state *output_state);
|
|
|
|
static void
|
|
drm_output_update_msc(struct drm_output *output, unsigned int seq);
|
|
|
|
static void
|
|
drm_output_destroy(struct weston_output *output_base);
|
|
|
|
static void
|
|
drm_virtual_output_destroy(struct weston_output *output_base);
|
|
|
|
/**
|
|
* Returns true if the plane can be used on the given output for its current
|
|
* repaint cycle.
|
|
*/
|
|
static bool
|
|
drm_plane_is_available(struct drm_plane *plane, struct drm_output *output)
|
|
{
|
|
assert(plane->state_cur);
|
|
|
|
if (output->virtual)
|
|
return false;
|
|
|
|
/* The plane still has a request not yet completed by the kernel. */
|
|
if (!plane->state_cur->complete)
|
|
return false;
|
|
|
|
/* The plane is still active on another output. */
|
|
if (plane->state_cur->output && plane->state_cur->output != output)
|
|
return false;
|
|
|
|
/* Check whether the plane can be used with this CRTC; possible_crtcs
|
|
* is a bitmask of CRTC indices (pipe), rather than CRTC object ID. */
|
|
return !!(plane->possible_crtcs & (1 << output->pipe));
|
|
}
|
|
|
|
static struct drm_output *
|
|
drm_output_find_by_crtc(struct drm_backend *b, uint32_t crtc_id)
|
|
{
|
|
struct drm_output *output;
|
|
|
|
wl_list_for_each(output, &b->compositor->output_list, base.link) {
|
|
if (output->crtc_id == crtc_id)
|
|
return output;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static struct drm_head *
|
|
drm_head_find_by_connector(struct drm_backend *backend, uint32_t connector_id)
|
|
{
|
|
struct weston_head *base;
|
|
struct drm_head *head;
|
|
|
|
wl_list_for_each(base,
|
|
&backend->compositor->head_list, compositor_link) {
|
|
head = to_drm_head(base);
|
|
if (head->connector_id == connector_id)
|
|
return head;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
drm_fb_destroy(struct drm_fb *fb)
|
|
{
|
|
if (fb->fb_id != 0)
|
|
drmModeRmFB(fb->fd, fb->fb_id);
|
|
weston_buffer_reference(&fb->buffer_ref, NULL);
|
|
free(fb);
|
|
}
|
|
|
|
static void
|
|
drm_fb_destroy_dumb(struct drm_fb *fb)
|
|
{
|
|
struct drm_mode_destroy_dumb destroy_arg;
|
|
|
|
assert(fb->type == BUFFER_PIXMAN_DUMB);
|
|
|
|
if (fb->map && fb->size > 0)
|
|
munmap(fb->map, fb->size);
|
|
|
|
memset(&destroy_arg, 0, sizeof(destroy_arg));
|
|
destroy_arg.handle = fb->handles[0];
|
|
drmIoctl(fb->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg);
|
|
|
|
drm_fb_destroy(fb);
|
|
}
|
|
|
|
static void
|
|
drm_fb_destroy_gbm(struct gbm_bo *bo, void *data)
|
|
{
|
|
struct drm_fb *fb = data;
|
|
|
|
assert(fb->type == BUFFER_GBM_SURFACE || fb->type == BUFFER_CLIENT ||
|
|
fb->type == BUFFER_CURSOR);
|
|
drm_fb_destroy(fb);
|
|
}
|
|
|
|
static int
|
|
drm_fb_addfb(struct drm_backend *b, struct drm_fb *fb)
|
|
{
|
|
int ret = -EINVAL;
|
|
#ifdef HAVE_DRM_ADDFB2_MODIFIERS
|
|
uint64_t mods[4] = { };
|
|
size_t i;
|
|
#endif
|
|
|
|
/* If we have a modifier set, we must only use the WithModifiers
|
|
* entrypoint; we cannot import it through legacy ioctls. */
|
|
if (b->fb_modifiers && fb->modifier != DRM_FORMAT_MOD_INVALID) {
|
|
/* KMS demands that if a modifier is set, it must be the same
|
|
* for all planes. */
|
|
#ifdef HAVE_DRM_ADDFB2_MODIFIERS
|
|
for (i = 0; i < ARRAY_LENGTH(mods) && fb->handles[i]; i++)
|
|
mods[i] = fb->modifier;
|
|
ret = drmModeAddFB2WithModifiers(fb->fd, fb->width, fb->height,
|
|
fb->format->format,
|
|
fb->handles, fb->strides,
|
|
fb->offsets, mods, &fb->fb_id,
|
|
DRM_MODE_FB_MODIFIERS);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
ret = drmModeAddFB2(fb->fd, fb->width, fb->height, fb->format->format,
|
|
fb->handles, fb->strides, fb->offsets, &fb->fb_id,
|
|
0);
|
|
if (ret == 0)
|
|
return 0;
|
|
|
|
/* Legacy AddFB can't always infer the format from depth/bpp alone, so
|
|
* check if our format is one of the lucky ones. */
|
|
if (!fb->format->depth || !fb->format->bpp)
|
|
return ret;
|
|
|
|
/* Cannot fall back to AddFB for multi-planar formats either. */
|
|
if (fb->handles[1] || fb->handles[2] || fb->handles[3])
|
|
return ret;
|
|
|
|
ret = drmModeAddFB(fb->fd, fb->width, fb->height,
|
|
fb->format->depth, fb->format->bpp,
|
|
fb->strides[0], fb->handles[0], &fb->fb_id);
|
|
return ret;
|
|
}
|
|
|
|
static struct drm_fb *
|
|
drm_fb_create_dumb(struct drm_backend *b, int width, int height,
|
|
uint32_t format)
|
|
{
|
|
struct drm_fb *fb;
|
|
int ret;
|
|
|
|
struct drm_mode_create_dumb create_arg;
|
|
struct drm_mode_destroy_dumb destroy_arg;
|
|
struct drm_mode_map_dumb map_arg;
|
|
|
|
fb = zalloc(sizeof *fb);
|
|
if (!fb)
|
|
return NULL;
|
|
fb->refcnt = 1;
|
|
|
|
fb->format = pixel_format_get_info(format);
|
|
if (!fb->format) {
|
|
weston_log("failed to look up format 0x%lx\n",
|
|
(unsigned long) format);
|
|
goto err_fb;
|
|
}
|
|
|
|
if (!fb->format->depth || !fb->format->bpp) {
|
|
weston_log("format 0x%lx is not compatible with dumb buffers\n",
|
|
(unsigned long) format);
|
|
goto err_fb;
|
|
}
|
|
|
|
memset(&create_arg, 0, sizeof create_arg);
|
|
create_arg.bpp = fb->format->bpp;
|
|
create_arg.width = width;
|
|
create_arg.height = height;
|
|
|
|
ret = drmIoctl(b->drm.fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_arg);
|
|
if (ret)
|
|
goto err_fb;
|
|
|
|
fb->type = BUFFER_PIXMAN_DUMB;
|
|
fb->modifier = DRM_FORMAT_MOD_INVALID;
|
|
fb->handles[0] = create_arg.handle;
|
|
fb->strides[0] = create_arg.pitch;
|
|
fb->num_planes = 1;
|
|
fb->size = create_arg.size;
|
|
fb->width = width;
|
|
fb->height = height;
|
|
fb->fd = b->drm.fd;
|
|
|
|
if (drm_fb_addfb(b, fb) != 0) {
|
|
weston_log("failed to create kms fb: %m\n");
|
|
goto err_bo;
|
|
}
|
|
|
|
memset(&map_arg, 0, sizeof map_arg);
|
|
map_arg.handle = fb->handles[0];
|
|
ret = drmIoctl(fb->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
|
|
if (ret)
|
|
goto err_add_fb;
|
|
|
|
fb->map = mmap(NULL, fb->size, PROT_WRITE,
|
|
MAP_SHARED, b->drm.fd, map_arg.offset);
|
|
if (fb->map == MAP_FAILED)
|
|
goto err_add_fb;
|
|
|
|
return fb;
|
|
|
|
err_add_fb:
|
|
drmModeRmFB(b->drm.fd, fb->fb_id);
|
|
err_bo:
|
|
memset(&destroy_arg, 0, sizeof(destroy_arg));
|
|
destroy_arg.handle = create_arg.handle;
|
|
drmIoctl(b->drm.fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg);
|
|
err_fb:
|
|
free(fb);
|
|
return NULL;
|
|
}
|
|
|
|
static struct drm_fb *
|
|
drm_fb_ref(struct drm_fb *fb)
|
|
{
|
|
fb->refcnt++;
|
|
return fb;
|
|
}
|
|
|
|
static void
|
|
drm_fb_destroy_dmabuf(struct drm_fb *fb)
|
|
{
|
|
/* We deliberately do not close the GEM handles here; GBM manages
|
|
* their lifetime through the BO. */
|
|
if (fb->bo)
|
|
gbm_bo_destroy(fb->bo);
|
|
drm_fb_destroy(fb);
|
|
}
|
|
|
|
static struct drm_fb *
|
|
drm_fb_get_from_dmabuf(struct linux_dmabuf_buffer *dmabuf,
|
|
struct drm_backend *backend, bool is_opaque)
|
|
{
|
|
#ifdef HAVE_GBM_FD_IMPORT
|
|
struct drm_fb *fb;
|
|
struct gbm_import_fd_data import_legacy = {
|
|
.width = dmabuf->attributes.width,
|
|
.height = dmabuf->attributes.height,
|
|
.format = dmabuf->attributes.format,
|
|
.stride = dmabuf->attributes.stride[0],
|
|
.fd = dmabuf->attributes.fd[0],
|
|
};
|
|
struct gbm_import_fd_modifier_data import_mod = {
|
|
.width = dmabuf->attributes.width,
|
|
.height = dmabuf->attributes.height,
|
|
.format = dmabuf->attributes.format,
|
|
.num_fds = dmabuf->attributes.n_planes,
|
|
.modifier = dmabuf->attributes.modifier[0],
|
|
};
|
|
int i;
|
|
|
|
/* XXX: TODO:
|
|
*
|
|
* Currently the buffer is rejected if any dmabuf attribute
|
|
* flag is set. This keeps us from passing an inverted /
|
|
* interlaced / bottom-first buffer (or any other type that may
|
|
* be added in the future) through to an overlay. Ultimately,
|
|
* these types of buffers should be handled through buffer
|
|
* transforms and not as spot-checks requiring specific
|
|
* knowledge. */
|
|
if (dmabuf->attributes.flags)
|
|
return NULL;
|
|
|
|
fb = zalloc(sizeof *fb);
|
|
if (fb == NULL)
|
|
return NULL;
|
|
|
|
fb->refcnt = 1;
|
|
fb->type = BUFFER_DMABUF;
|
|
|
|
static_assert(ARRAY_LENGTH(import_mod.fds) ==
|
|
ARRAY_LENGTH(dmabuf->attributes.fd),
|
|
"GBM and linux_dmabuf FD size must match");
|
|
static_assert(sizeof(import_mod.fds) == sizeof(dmabuf->attributes.fd),
|
|
"GBM and linux_dmabuf FD size must match");
|
|
memcpy(import_mod.fds, dmabuf->attributes.fd, sizeof(import_mod.fds));
|
|
|
|
static_assert(ARRAY_LENGTH(import_mod.strides) ==
|
|
ARRAY_LENGTH(dmabuf->attributes.stride),
|
|
"GBM and linux_dmabuf stride size must match");
|
|
static_assert(sizeof(import_mod.strides) ==
|
|
sizeof(dmabuf->attributes.stride),
|
|
"GBM and linux_dmabuf stride size must match");
|
|
memcpy(import_mod.strides, dmabuf->attributes.stride,
|
|
sizeof(import_mod.strides));
|
|
|
|
static_assert(ARRAY_LENGTH(import_mod.offsets) ==
|
|
ARRAY_LENGTH(dmabuf->attributes.offset),
|
|
"GBM and linux_dmabuf offset size must match");
|
|
static_assert(sizeof(import_mod.offsets) ==
|
|
sizeof(dmabuf->attributes.offset),
|
|
"GBM and linux_dmabuf offset size must match");
|
|
memcpy(import_mod.offsets, dmabuf->attributes.offset,
|
|
sizeof(import_mod.offsets));
|
|
|
|
/* The legacy FD-import path does not allow us to supply modifiers,
|
|
* multiple planes, or buffer offsets. */
|
|
if (dmabuf->attributes.modifier[0] != DRM_FORMAT_MOD_INVALID ||
|
|
import_mod.num_fds > 1 ||
|
|
import_mod.offsets[0] > 0) {
|
|
fb->bo = gbm_bo_import(backend->gbm, GBM_BO_IMPORT_FD_MODIFIER,
|
|
&import_mod,
|
|
GBM_BO_USE_SCANOUT);
|
|
} else {
|
|
fb->bo = gbm_bo_import(backend->gbm, GBM_BO_IMPORT_FD,
|
|
&import_legacy,
|
|
GBM_BO_USE_SCANOUT);
|
|
}
|
|
|
|
if (!fb->bo)
|
|
goto err_free;
|
|
|
|
fb->width = dmabuf->attributes.width;
|
|
fb->height = dmabuf->attributes.height;
|
|
fb->modifier = dmabuf->attributes.modifier[0];
|
|
fb->size = 0;
|
|
fb->fd = backend->drm.fd;
|
|
|
|
static_assert(ARRAY_LENGTH(fb->strides) ==
|
|
ARRAY_LENGTH(dmabuf->attributes.stride),
|
|
"drm_fb and dmabuf stride size must match");
|
|
static_assert(sizeof(fb->strides) == sizeof(dmabuf->attributes.stride),
|
|
"drm_fb and dmabuf stride size must match");
|
|
memcpy(fb->strides, dmabuf->attributes.stride, sizeof(fb->strides));
|
|
static_assert(ARRAY_LENGTH(fb->offsets) ==
|
|
ARRAY_LENGTH(dmabuf->attributes.offset),
|
|
"drm_fb and dmabuf offset size must match");
|
|
static_assert(sizeof(fb->offsets) == sizeof(dmabuf->attributes.offset),
|
|
"drm_fb and dmabuf offset size must match");
|
|
memcpy(fb->offsets, dmabuf->attributes.offset, sizeof(fb->offsets));
|
|
|
|
fb->format = pixel_format_get_info(dmabuf->attributes.format);
|
|
if (!fb->format) {
|
|
weston_log("couldn't look up format info for 0x%lx\n",
|
|
(unsigned long) dmabuf->attributes.format);
|
|
goto err_free;
|
|
}
|
|
|
|
if (is_opaque)
|
|
fb->format = pixel_format_get_opaque_substitute(fb->format);
|
|
|
|
if (backend->min_width > fb->width ||
|
|
fb->width > backend->max_width ||
|
|
backend->min_height > fb->height ||
|
|
fb->height > backend->max_height) {
|
|
weston_log("bo geometry out of bounds\n");
|
|
goto err_free;
|
|
}
|
|
|
|
fb->num_planes = dmabuf->attributes.n_planes;
|
|
for (i = 0; i < dmabuf->attributes.n_planes; i++) {
|
|
fb->handles[i] = gbm_bo_get_handle_for_plane(fb->bo, i).u32;
|
|
if (!fb->handles[i])
|
|
goto err_free;
|
|
}
|
|
|
|
if (drm_fb_addfb(backend, fb) != 0)
|
|
goto err_free;
|
|
|
|
return fb;
|
|
|
|
err_free:
|
|
drm_fb_destroy_dmabuf(fb);
|
|
#endif
|
|
return NULL;
|
|
}
|
|
|
|
static struct drm_fb *
|
|
drm_fb_get_from_bo(struct gbm_bo *bo, struct drm_backend *backend,
|
|
bool is_opaque, enum drm_fb_type type)
|
|
{
|
|
struct drm_fb *fb = gbm_bo_get_user_data(bo);
|
|
#ifdef HAVE_GBM_MODIFIERS
|
|
int i;
|
|
#endif
|
|
|
|
if (fb) {
|
|
assert(fb->type == type);
|
|
return drm_fb_ref(fb);
|
|
}
|
|
|
|
fb = zalloc(sizeof *fb);
|
|
if (fb == NULL)
|
|
return NULL;
|
|
|
|
fb->type = type;
|
|
fb->refcnt = 1;
|
|
fb->bo = bo;
|
|
fb->fd = backend->drm.fd;
|
|
|
|
fb->width = gbm_bo_get_width(bo);
|
|
fb->height = gbm_bo_get_height(bo);
|
|
fb->format = pixel_format_get_info(gbm_bo_get_format(bo));
|
|
fb->size = 0;
|
|
|
|
#ifdef HAVE_GBM_MODIFIERS
|
|
fb->modifier = gbm_bo_get_modifier(bo);
|
|
fb->num_planes = gbm_bo_get_plane_count(bo);
|
|
for (i = 0; i < fb->num_planes; i++) {
|
|
fb->strides[i] = gbm_bo_get_stride_for_plane(bo, i);
|
|
fb->handles[i] = gbm_bo_get_handle_for_plane(bo, i).u32;
|
|
fb->offsets[i] = gbm_bo_get_offset(bo, i);
|
|
}
|
|
#else
|
|
fb->num_planes = 1;
|
|
fb->strides[0] = gbm_bo_get_stride(bo);
|
|
fb->handles[0] = gbm_bo_get_handle(bo).u32;
|
|
fb->modifier = DRM_FORMAT_MOD_INVALID;
|
|
#endif
|
|
|
|
if (!fb->format) {
|
|
weston_log("couldn't look up format 0x%lx\n",
|
|
(unsigned long) gbm_bo_get_format(bo));
|
|
goto err_free;
|
|
}
|
|
|
|
/* We can scanout an ARGB buffer if the surface's opaque region covers
|
|
* the whole output, but we have to use XRGB as the KMS format code. */
|
|
if (is_opaque)
|
|
fb->format = pixel_format_get_opaque_substitute(fb->format);
|
|
|
|
if (backend->min_width > fb->width ||
|
|
fb->width > backend->max_width ||
|
|
backend->min_height > fb->height ||
|
|
fb->height > backend->max_height) {
|
|
weston_log("bo geometry out of bounds\n");
|
|
goto err_free;
|
|
}
|
|
|
|
if (drm_fb_addfb(backend, fb) != 0) {
|
|
if (type == BUFFER_GBM_SURFACE)
|
|
weston_log("failed to create kms fb: %m\n");
|
|
goto err_free;
|
|
}
|
|
|
|
gbm_bo_set_user_data(bo, fb, drm_fb_destroy_gbm);
|
|
|
|
return fb;
|
|
|
|
err_free:
|
|
free(fb);
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
drm_fb_set_buffer(struct drm_fb *fb, struct weston_buffer *buffer)
|
|
{
|
|
assert(fb->buffer_ref.buffer == NULL);
|
|
assert(fb->type == BUFFER_CLIENT || fb->type == BUFFER_DMABUF);
|
|
weston_buffer_reference(&fb->buffer_ref, buffer);
|
|
}
|
|
|
|
static void
|
|
drm_fb_unref(struct drm_fb *fb)
|
|
{
|
|
if (!fb)
|
|
return;
|
|
|
|
assert(fb->refcnt > 0);
|
|
if (--fb->refcnt > 0)
|
|
return;
|
|
|
|
switch (fb->type) {
|
|
case BUFFER_PIXMAN_DUMB:
|
|
drm_fb_destroy_dumb(fb);
|
|
break;
|
|
case BUFFER_CURSOR:
|
|
case BUFFER_CLIENT:
|
|
gbm_bo_destroy(fb->bo);
|
|
break;
|
|
case BUFFER_GBM_SURFACE:
|
|
gbm_surface_release_buffer(fb->gbm_surface, fb->bo);
|
|
break;
|
|
case BUFFER_DMABUF:
|
|
drm_fb_destroy_dmabuf(fb);
|
|
break;
|
|
default:
|
|
assert(NULL);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Allocate a new, empty, plane state.
|
|
*/
|
|
static struct drm_plane_state *
|
|
drm_plane_state_alloc(struct drm_output_state *state_output,
|
|
struct drm_plane *plane)
|
|
{
|
|
struct drm_plane_state *state = zalloc(sizeof(*state));
|
|
|
|
assert(state);
|
|
state->output_state = state_output;
|
|
state->plane = plane;
|
|
|
|
/* Here we only add the plane state to the desired link, and not
|
|
* set the member. Having an output pointer set means that the
|
|
* plane will be displayed on the output; this won't be the case
|
|
* when we go to disable a plane. In this case, it must be part of
|
|
* the commit (and thus the output state), but the member must be
|
|
* NULL, as it will not be on any output when the state takes
|
|
* effect.
|
|
*/
|
|
if (state_output)
|
|
wl_list_insert(&state_output->plane_list, &state->link);
|
|
else
|
|
wl_list_init(&state->link);
|
|
|
|
return state;
|
|
}
|
|
|
|
/**
|
|
* Free an existing plane state. As a special case, the state will not
|
|
* normally be freed if it is the current state; see drm_plane_set_state.
|
|
*/
|
|
static void
|
|
drm_plane_state_free(struct drm_plane_state *state, bool force)
|
|
{
|
|
if (!state)
|
|
return;
|
|
|
|
wl_list_remove(&state->link);
|
|
wl_list_init(&state->link);
|
|
state->output_state = NULL;
|
|
|
|
if (force || state != state->plane->state_cur) {
|
|
drm_fb_unref(state->fb);
|
|
free(state);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Duplicate an existing plane state into a new plane state, storing it within
|
|
* the given output state. If the output state already contains a plane state
|
|
* for the drm_plane referenced by 'src', that plane state is freed first.
|
|
*/
|
|
static struct drm_plane_state *
|
|
drm_plane_state_duplicate(struct drm_output_state *state_output,
|
|
struct drm_plane_state *src)
|
|
{
|
|
struct drm_plane_state *dst = malloc(sizeof(*dst));
|
|
struct drm_plane_state *old, *tmp;
|
|
|
|
assert(src);
|
|
assert(dst);
|
|
*dst = *src;
|
|
wl_list_init(&dst->link);
|
|
|
|
wl_list_for_each_safe(old, tmp, &state_output->plane_list, link) {
|
|
/* Duplicating a plane state into the same output state, so
|
|
* it can replace itself with an identical copy of itself,
|
|
* makes no sense. */
|
|
assert(old != src);
|
|
if (old->plane == dst->plane)
|
|
drm_plane_state_free(old, false);
|
|
}
|
|
|
|
wl_list_insert(&state_output->plane_list, &dst->link);
|
|
if (src->fb)
|
|
dst->fb = drm_fb_ref(src->fb);
|
|
dst->output_state = state_output;
|
|
dst->complete = false;
|
|
|
|
return dst;
|
|
}
|
|
|
|
/**
|
|
* Remove a plane state from an output state; if the plane was previously
|
|
* enabled, then replace it with a disabling state. This ensures that the
|
|
* output state was untouched from it was before the plane state was
|
|
* modified by the caller of this function.
|
|
*
|
|
* This is required as drm_output_state_get_plane may either allocate a
|
|
* new plane state, in which case this function will just perform a matching
|
|
* drm_plane_state_free, or it may instead repurpose an existing disabling
|
|
* state (if the plane was previously active), in which case this function
|
|
* will reset it.
|
|
*/
|
|
static void
|
|
drm_plane_state_put_back(struct drm_plane_state *state)
|
|
{
|
|
struct drm_output_state *state_output;
|
|
struct drm_plane *plane;
|
|
|
|
if (!state)
|
|
return;
|
|
|
|
state_output = state->output_state;
|
|
plane = state->plane;
|
|
drm_plane_state_free(state, false);
|
|
|
|
/* Plane was previously disabled; no need to keep this temporary
|
|
* state around. */
|
|
if (!plane->state_cur->fb)
|
|
return;
|
|
|
|
(void) drm_plane_state_alloc(state_output, plane);
|
|
}
|
|
|
|
static bool
|
|
drm_view_transform_supported(struct weston_view *ev, struct weston_output *output)
|
|
{
|
|
struct weston_buffer_viewport *viewport = &ev->surface->buffer_viewport;
|
|
|
|
/* This will incorrectly disallow cases where the combination of
|
|
* buffer and view transformations match the output transform.
|
|
* Fixing this requires a full analysis of the transformation
|
|
* chain. */
|
|
if (ev->transform.enabled &&
|
|
ev->transform.matrix.type >= WESTON_MATRIX_TRANSFORM_ROTATE)
|
|
return false;
|
|
|
|
if (viewport->buffer.transform != output->transform)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Given a weston_view, fill the drm_plane_state's co-ordinates to display on
|
|
* a given plane.
|
|
*/
|
|
static bool
|
|
drm_plane_state_coords_for_view(struct drm_plane_state *state,
|
|
struct weston_view *ev)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct weston_buffer *buffer = ev->surface->buffer_ref.buffer;
|
|
pixman_region32_t dest_rect, src_rect;
|
|
pixman_box32_t *box, tbox;
|
|
float sxf1, syf1, sxf2, syf2;
|
|
|
|
if (!drm_view_transform_supported(ev, &output->base))
|
|
return false;
|
|
|
|
/* Update the base weston_plane co-ordinates. */
|
|
box = pixman_region32_extents(&ev->transform.boundingbox);
|
|
state->plane->base.x = box->x1;
|
|
state->plane->base.y = box->y1;
|
|
|
|
/* First calculate the destination co-ordinates by taking the
|
|
* area of the view which is visible on this output, performing any
|
|
* transforms to account for output rotation and scale as necessary. */
|
|
pixman_region32_init(&dest_rect);
|
|
pixman_region32_intersect(&dest_rect, &ev->transform.boundingbox,
|
|
&output->base.region);
|
|
pixman_region32_translate(&dest_rect, -output->base.x, -output->base.y);
|
|
box = pixman_region32_extents(&dest_rect);
|
|
tbox = weston_transformed_rect(output->base.width,
|
|
output->base.height,
|
|
output->base.transform,
|
|
output->base.current_scale,
|
|
*box);
|
|
state->dest_x = tbox.x1;
|
|
state->dest_y = tbox.y1;
|
|
state->dest_w = tbox.x2 - tbox.x1;
|
|
state->dest_h = tbox.y2 - tbox.y1;
|
|
pixman_region32_fini(&dest_rect);
|
|
|
|
/* Now calculate the source rectangle, by finding the extents of the
|
|
* view, and working backwards to source co-ordinates. */
|
|
pixman_region32_init(&src_rect);
|
|
pixman_region32_intersect(&src_rect, &ev->transform.boundingbox,
|
|
&output->base.region);
|
|
box = pixman_region32_extents(&src_rect);
|
|
weston_view_from_global_float(ev, box->x1, box->y1, &sxf1, &syf1);
|
|
weston_surface_to_buffer_float(ev->surface, sxf1, syf1, &sxf1, &syf1);
|
|
weston_view_from_global_float(ev, box->x2, box->y2, &sxf2, &syf2);
|
|
weston_surface_to_buffer_float(ev->surface, sxf2, syf2, &sxf2, &syf2);
|
|
pixman_region32_fini(&src_rect);
|
|
|
|
/* Buffer transforms may mean that x2 is to the left of x1, and/or that
|
|
* y2 is above y1. */
|
|
if (sxf2 < sxf1) {
|
|
double tmp = sxf1;
|
|
sxf1 = sxf2;
|
|
sxf2 = tmp;
|
|
}
|
|
if (syf2 < syf1) {
|
|
double tmp = syf1;
|
|
syf1 = syf2;
|
|
syf2 = tmp;
|
|
}
|
|
|
|
/* Shift from S23.8 wl_fixed to U16.16 KMS fixed-point encoding. */
|
|
state->src_x = wl_fixed_from_double(sxf1) << 8;
|
|
state->src_y = wl_fixed_from_double(syf1) << 8;
|
|
state->src_w = wl_fixed_from_double(sxf2 - sxf1) << 8;
|
|
state->src_h = wl_fixed_from_double(syf2 - syf1) << 8;
|
|
|
|
/* Clamp our source co-ordinates to surface bounds; it's possible
|
|
* for intermediate translations to give us slightly incorrect
|
|
* co-ordinates if we have, for example, multiple zooming
|
|
* transformations. View bounding boxes are also explicitly rounded
|
|
* greedily. */
|
|
if (state->src_x < 0)
|
|
state->src_x = 0;
|
|
if (state->src_y < 0)
|
|
state->src_y = 0;
|
|
if (state->src_w > (uint32_t) ((buffer->width << 16) - state->src_x))
|
|
state->src_w = (buffer->width << 16) - state->src_x;
|
|
if (state->src_h > (uint32_t) ((buffer->height << 16) - state->src_y))
|
|
state->src_h = (buffer->height << 16) - state->src_y;
|
|
|
|
return true;
|
|
}
|
|
|
|
static struct drm_fb *
|
|
drm_fb_get_from_view(struct drm_output_state *state, struct weston_view *ev)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct weston_buffer *buffer = ev->surface->buffer_ref.buffer;
|
|
bool is_opaque = weston_view_is_opaque(ev, &ev->transform.boundingbox);
|
|
struct linux_dmabuf_buffer *dmabuf;
|
|
struct drm_fb *fb;
|
|
|
|
if (ev->alpha != 1.0f)
|
|
return NULL;
|
|
|
|
if (!drm_view_transform_supported(ev, &output->base))
|
|
return NULL;
|
|
|
|
if (!buffer)
|
|
return NULL;
|
|
|
|
if (wl_shm_buffer_get(buffer->resource))
|
|
return NULL;
|
|
|
|
/* GBM is used for dmabuf import as well as from client wl_buffer. */
|
|
if (!b->gbm)
|
|
return NULL;
|
|
|
|
dmabuf = linux_dmabuf_buffer_get(buffer->resource);
|
|
if (dmabuf) {
|
|
fb = drm_fb_get_from_dmabuf(dmabuf, b, is_opaque);
|
|
if (!fb)
|
|
return NULL;
|
|
} else {
|
|
struct gbm_bo *bo;
|
|
|
|
bo = gbm_bo_import(b->gbm, GBM_BO_IMPORT_WL_BUFFER,
|
|
buffer->resource, GBM_BO_USE_SCANOUT);
|
|
if (!bo)
|
|
return NULL;
|
|
|
|
fb = drm_fb_get_from_bo(bo, b, is_opaque, BUFFER_CLIENT);
|
|
if (!fb) {
|
|
gbm_bo_destroy(bo);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
drm_debug(b, "\t\t\t[view] view %p format: %s\n",
|
|
ev, fb->format->drm_format_name);
|
|
drm_fb_set_buffer(fb, buffer);
|
|
return fb;
|
|
}
|
|
|
|
/**
|
|
* Return a plane state from a drm_output_state.
|
|
*/
|
|
static struct drm_plane_state *
|
|
drm_output_state_get_existing_plane(struct drm_output_state *state_output,
|
|
struct drm_plane *plane)
|
|
{
|
|
struct drm_plane_state *ps;
|
|
|
|
wl_list_for_each(ps, &state_output->plane_list, link) {
|
|
if (ps->plane == plane)
|
|
return ps;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Return a plane state from a drm_output_state, either existing or
|
|
* freshly allocated.
|
|
*/
|
|
static struct drm_plane_state *
|
|
drm_output_state_get_plane(struct drm_output_state *state_output,
|
|
struct drm_plane *plane)
|
|
{
|
|
struct drm_plane_state *ps;
|
|
|
|
ps = drm_output_state_get_existing_plane(state_output, plane);
|
|
if (ps)
|
|
return ps;
|
|
|
|
return drm_plane_state_alloc(state_output, plane);
|
|
}
|
|
|
|
/**
|
|
* Allocate a new, empty drm_output_state. This should not generally be used
|
|
* in the repaint cycle; see drm_output_state_duplicate.
|
|
*/
|
|
static struct drm_output_state *
|
|
drm_output_state_alloc(struct drm_output *output,
|
|
struct drm_pending_state *pending_state)
|
|
{
|
|
struct drm_output_state *state = zalloc(sizeof(*state));
|
|
|
|
assert(state);
|
|
state->output = output;
|
|
state->dpms = WESTON_DPMS_OFF;
|
|
state->pending_state = pending_state;
|
|
if (pending_state)
|
|
wl_list_insert(&pending_state->output_list, &state->link);
|
|
else
|
|
wl_list_init(&state->link);
|
|
|
|
wl_list_init(&state->plane_list);
|
|
|
|
return state;
|
|
}
|
|
|
|
/**
|
|
* Duplicate an existing drm_output_state into a new one. This is generally
|
|
* used during the repaint cycle, to capture the existing state of an output
|
|
* and modify it to create a new state to be used.
|
|
*
|
|
* The mode determines whether the output will be reset to an a blank state,
|
|
* or an exact mirror of the current state.
|
|
*/
|
|
static struct drm_output_state *
|
|
drm_output_state_duplicate(struct drm_output_state *src,
|
|
struct drm_pending_state *pending_state,
|
|
enum drm_output_state_duplicate_mode plane_mode)
|
|
{
|
|
struct drm_output_state *dst = malloc(sizeof(*dst));
|
|
struct drm_plane_state *ps;
|
|
|
|
assert(dst);
|
|
|
|
/* Copy the whole structure, then individually modify the
|
|
* pending_state, as well as the list link into our pending
|
|
* state. */
|
|
*dst = *src;
|
|
|
|
dst->pending_state = pending_state;
|
|
if (pending_state)
|
|
wl_list_insert(&pending_state->output_list, &dst->link);
|
|
else
|
|
wl_list_init(&dst->link);
|
|
|
|
wl_list_init(&dst->plane_list);
|
|
|
|
wl_list_for_each(ps, &src->plane_list, link) {
|
|
/* Don't carry planes which are now disabled; these should be
|
|
* free for other outputs to reuse. */
|
|
if (!ps->output)
|
|
continue;
|
|
|
|
if (plane_mode == DRM_OUTPUT_STATE_CLEAR_PLANES)
|
|
(void) drm_plane_state_alloc(dst, ps->plane);
|
|
else
|
|
(void) drm_plane_state_duplicate(dst, ps);
|
|
}
|
|
|
|
return dst;
|
|
}
|
|
|
|
/**
|
|
* Free an unused drm_output_state.
|
|
*/
|
|
static void
|
|
drm_output_state_free(struct drm_output_state *state)
|
|
{
|
|
struct drm_plane_state *ps, *next;
|
|
|
|
if (!state)
|
|
return;
|
|
|
|
wl_list_for_each_safe(ps, next, &state->plane_list, link)
|
|
drm_plane_state_free(ps, false);
|
|
|
|
wl_list_remove(&state->link);
|
|
|
|
free(state);
|
|
}
|
|
|
|
/**
|
|
* Get output state to disable output
|
|
*
|
|
* Returns a pointer to an output_state object which can be used to disable
|
|
* an output (e.g. DPMS off).
|
|
*
|
|
* @param pending_state The pending state object owning this update
|
|
* @param output The output to disable
|
|
* @returns A drm_output_state to disable the output
|
|
*/
|
|
static struct drm_output_state *
|
|
drm_output_get_disable_state(struct drm_pending_state *pending_state,
|
|
struct drm_output *output)
|
|
{
|
|
struct drm_output_state *output_state;
|
|
|
|
output_state = drm_output_state_duplicate(output->state_cur,
|
|
pending_state,
|
|
DRM_OUTPUT_STATE_CLEAR_PLANES);
|
|
output_state->dpms = WESTON_DPMS_OFF;
|
|
|
|
return output_state;
|
|
}
|
|
|
|
/**
|
|
* Allocate a new drm_pending_state
|
|
*
|
|
* Allocate a new, empty, 'pending state' structure to be used across a
|
|
* repaint cycle or similar.
|
|
*
|
|
* @param backend DRM backend
|
|
* @returns Newly-allocated pending state structure
|
|
*/
|
|
static struct drm_pending_state *
|
|
drm_pending_state_alloc(struct drm_backend *backend)
|
|
{
|
|
struct drm_pending_state *ret;
|
|
|
|
ret = calloc(1, sizeof(*ret));
|
|
if (!ret)
|
|
return NULL;
|
|
|
|
ret->backend = backend;
|
|
wl_list_init(&ret->output_list);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Free a drm_pending_state structure
|
|
*
|
|
* Frees a pending_state structure, as well as any output_states connected
|
|
* to this pending state.
|
|
*
|
|
* @param pending_state Pending state structure to free
|
|
*/
|
|
static void
|
|
drm_pending_state_free(struct drm_pending_state *pending_state)
|
|
{
|
|
struct drm_output_state *output_state, *tmp;
|
|
|
|
if (!pending_state)
|
|
return;
|
|
|
|
wl_list_for_each_safe(output_state, tmp, &pending_state->output_list,
|
|
link) {
|
|
drm_output_state_free(output_state);
|
|
}
|
|
|
|
free(pending_state);
|
|
}
|
|
|
|
/**
|
|
* Find an output state in a pending state
|
|
*
|
|
* Given a pending_state structure, find the output_state for a particular
|
|
* output.
|
|
*
|
|
* @param pending_state Pending state structure to search
|
|
* @param output Output to find state for
|
|
* @returns Output state if present, or NULL if not
|
|
*/
|
|
static struct drm_output_state *
|
|
drm_pending_state_get_output(struct drm_pending_state *pending_state,
|
|
struct drm_output *output)
|
|
{
|
|
struct drm_output_state *output_state;
|
|
|
|
wl_list_for_each(output_state, &pending_state->output_list, link) {
|
|
if (output_state->output == output)
|
|
return output_state;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static int drm_pending_state_apply_sync(struct drm_pending_state *state);
|
|
static int drm_pending_state_test(struct drm_pending_state *state);
|
|
|
|
/**
|
|
* Mark a drm_output_state (the output's last state) as complete. This handles
|
|
* any post-completion actions such as updating the repaint timer, disabling the
|
|
* output, and finally freeing the state.
|
|
*/
|
|
static void
|
|
drm_output_update_complete(struct drm_output *output, uint32_t flags,
|
|
unsigned int sec, unsigned int usec)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct drm_plane_state *ps;
|
|
struct timespec ts;
|
|
|
|
/* Stop the pageflip timer instead of rearming it here */
|
|
if (output->pageflip_timer)
|
|
wl_event_source_timer_update(output->pageflip_timer, 0);
|
|
|
|
wl_list_for_each(ps, &output->state_cur->plane_list, link)
|
|
ps->complete = true;
|
|
|
|
drm_output_state_free(output->state_last);
|
|
output->state_last = NULL;
|
|
|
|
if (output->destroy_pending) {
|
|
output->destroy_pending = 0;
|
|
output->disable_pending = 0;
|
|
output->dpms_off_pending = 0;
|
|
drm_output_destroy(&output->base);
|
|
return;
|
|
} else if (output->disable_pending) {
|
|
output->disable_pending = 0;
|
|
output->dpms_off_pending = 0;
|
|
weston_output_disable(&output->base);
|
|
return;
|
|
} else if (output->dpms_off_pending) {
|
|
struct drm_pending_state *pending = drm_pending_state_alloc(b);
|
|
output->dpms_off_pending = 0;
|
|
drm_output_get_disable_state(pending, output);
|
|
drm_pending_state_apply_sync(pending);
|
|
return;
|
|
} else if (output->state_cur->dpms == WESTON_DPMS_OFF &&
|
|
output->base.repaint_status != REPAINT_AWAITING_COMPLETION) {
|
|
/* DPMS can happen to us either in the middle of a repaint
|
|
* cycle (when we have painted fresh content, only to throw it
|
|
* away for DPMS off), or at any other random point. If the
|
|
* latter is true, then we cannot go through finish_frame,
|
|
* because the repaint machinery does not expect this. */
|
|
return;
|
|
}
|
|
|
|
ts.tv_sec = sec;
|
|
ts.tv_nsec = usec * 1000;
|
|
weston_output_finish_frame(&output->base, &ts, flags);
|
|
|
|
/* We can't call this from frame_notify, because the output's
|
|
* repaint needed flag is cleared just after that */
|
|
if (output->recorder)
|
|
weston_output_schedule_repaint(&output->base);
|
|
}
|
|
|
|
/**
|
|
* Mark an output state as current on the output, i.e. it has been
|
|
* submitted to the kernel. The mode argument determines whether this
|
|
* update will be applied synchronously (e.g. when calling drmModeSetCrtc),
|
|
* or asynchronously (in which case we wait for events to complete).
|
|
*/
|
|
static void
|
|
drm_output_assign_state(struct drm_output_state *state,
|
|
enum drm_state_apply_mode mode)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct drm_plane_state *plane_state;
|
|
|
|
assert(!output->state_last);
|
|
|
|
if (mode == DRM_STATE_APPLY_ASYNC)
|
|
output->state_last = output->state_cur;
|
|
else
|
|
drm_output_state_free(output->state_cur);
|
|
|
|
wl_list_remove(&state->link);
|
|
wl_list_init(&state->link);
|
|
state->pending_state = NULL;
|
|
|
|
output->state_cur = state;
|
|
|
|
if (b->atomic_modeset && mode == DRM_STATE_APPLY_ASYNC) {
|
|
drm_debug(b, "\t[CRTC:%u] setting pending flip\n", output->crtc_id);
|
|
output->atomic_complete_pending = 1;
|
|
}
|
|
|
|
/* Replace state_cur on each affected plane with the new state, being
|
|
* careful to dispose of orphaned (but only orphaned) previous state.
|
|
* If the previous state is not orphaned (still has an output_state
|
|
* attached), it will be disposed of by freeing the output_state. */
|
|
wl_list_for_each(plane_state, &state->plane_list, link) {
|
|
struct drm_plane *plane = plane_state->plane;
|
|
|
|
if (plane->state_cur && !plane->state_cur->output_state)
|
|
drm_plane_state_free(plane->state_cur, true);
|
|
plane->state_cur = plane_state;
|
|
|
|
if (mode != DRM_STATE_APPLY_ASYNC) {
|
|
plane_state->complete = true;
|
|
continue;
|
|
}
|
|
|
|
if (b->atomic_modeset)
|
|
continue;
|
|
|
|
if (plane->type == WDRM_PLANE_TYPE_OVERLAY)
|
|
output->vblank_pending++;
|
|
else if (plane->type == WDRM_PLANE_TYPE_PRIMARY)
|
|
output->page_flip_pending = 1;
|
|
}
|
|
}
|
|
|
|
static struct drm_plane_state *
|
|
drm_output_prepare_scanout_view(struct drm_output_state *output_state,
|
|
struct weston_view *ev,
|
|
enum drm_output_propose_state_mode mode)
|
|
{
|
|
struct drm_output *output = output_state->output;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct drm_plane *scanout_plane = output->scanout_plane;
|
|
struct drm_plane_state *state;
|
|
struct drm_fb *fb;
|
|
pixman_box32_t *extents;
|
|
|
|
assert(!b->sprites_are_broken);
|
|
assert(mode == DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY);
|
|
|
|
/* Check the view spans exactly the output size, calculated in the
|
|
* logical co-ordinate space. */
|
|
extents = pixman_region32_extents(&ev->transform.boundingbox);
|
|
if (extents->x1 != output->base.x ||
|
|
extents->y1 != output->base.y ||
|
|
extents->x2 != output->base.x + output->base.width ||
|
|
extents->y2 != output->base.y + output->base.height)
|
|
return NULL;
|
|
|
|
fb = drm_fb_get_from_view(output_state, ev);
|
|
if (!fb) {
|
|
drm_debug(b, "\t\t\t\t[scanout] not placing view %p on scanout: "
|
|
" couldn't get fb\n", ev);
|
|
return NULL;
|
|
}
|
|
|
|
/* Can't change formats with just a pageflip */
|
|
if (!b->atomic_modeset && fb->format->format != output->gbm_format) {
|
|
drm_fb_unref(fb);
|
|
return NULL;
|
|
}
|
|
|
|
state = drm_output_state_get_plane(output_state, scanout_plane);
|
|
|
|
/* The only way we can already have a buffer in the scanout plane is
|
|
* if we are in mixed mode, or if a client buffer has already been
|
|
* placed into scanout. The former case will never call into here,
|
|
* and in the latter case, the view must have been marked as occluded,
|
|
* meaning we should never have ended up here. */
|
|
assert(!state->fb);
|
|
state->fb = fb;
|
|
state->ev = ev;
|
|
state->output = output;
|
|
if (!drm_plane_state_coords_for_view(state, ev))
|
|
goto err;
|
|
|
|
if (state->dest_x != 0 || state->dest_y != 0 ||
|
|
state->dest_w != (unsigned) output->base.current_mode->width ||
|
|
state->dest_h != (unsigned) output->base.current_mode->height)
|
|
goto err;
|
|
|
|
/* The legacy API does not let us perform cropping or scaling. */
|
|
if (!b->atomic_modeset &&
|
|
(state->src_x != 0 || state->src_y != 0 ||
|
|
state->src_w != state->dest_w << 16 ||
|
|
state->src_h != state->dest_h << 16))
|
|
goto err;
|
|
|
|
/* In plane-only mode, we don't need to test the state now, as we
|
|
* will only test it once at the end. */
|
|
return state;
|
|
|
|
err:
|
|
drm_plane_state_put_back(state);
|
|
return NULL;
|
|
}
|
|
|
|
static struct drm_fb *
|
|
drm_output_render_gl(struct drm_output_state *state, pixman_region32_t *damage)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct gbm_bo *bo;
|
|
struct drm_fb *ret;
|
|
|
|
output->base.compositor->renderer->repaint_output(&output->base,
|
|
damage);
|
|
|
|
bo = gbm_surface_lock_front_buffer(output->gbm_surface);
|
|
if (!bo) {
|
|
weston_log("failed to lock front buffer: %m\n");
|
|
return NULL;
|
|
}
|
|
|
|
/* The renderer always produces an opaque image. */
|
|
ret = drm_fb_get_from_bo(bo, b, true, BUFFER_GBM_SURFACE);
|
|
if (!ret) {
|
|
weston_log("failed to get drm_fb for bo\n");
|
|
gbm_surface_release_buffer(output->gbm_surface, bo);
|
|
return NULL;
|
|
}
|
|
ret->gbm_surface = output->gbm_surface;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct drm_fb *
|
|
drm_output_render_pixman(struct drm_output_state *state,
|
|
pixman_region32_t *damage)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct weston_compositor *ec = output->base.compositor;
|
|
|
|
output->current_image ^= 1;
|
|
|
|
pixman_renderer_output_set_buffer(&output->base,
|
|
output->image[output->current_image]);
|
|
pixman_renderer_output_set_hw_extra_damage(&output->base,
|
|
&output->previous_damage);
|
|
|
|
ec->renderer->repaint_output(&output->base, damage);
|
|
|
|
pixman_region32_copy(&output->previous_damage, damage);
|
|
|
|
return drm_fb_ref(output->dumb[output->current_image]);
|
|
}
|
|
|
|
static void
|
|
drm_output_render(struct drm_output_state *state, pixman_region32_t *damage)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct weston_compositor *c = output->base.compositor;
|
|
struct drm_plane_state *scanout_state;
|
|
struct drm_plane *scanout_plane = output->scanout_plane;
|
|
struct drm_backend *b = to_drm_backend(c);
|
|
struct drm_fb *fb;
|
|
|
|
/* If we already have a client buffer promoted to scanout, then we don't
|
|
* want to render. */
|
|
scanout_state = drm_output_state_get_plane(state,
|
|
output->scanout_plane);
|
|
if (scanout_state->fb)
|
|
return;
|
|
|
|
if (!pixman_region32_not_empty(damage) &&
|
|
scanout_plane->state_cur->fb &&
|
|
(scanout_plane->state_cur->fb->type == BUFFER_GBM_SURFACE ||
|
|
scanout_plane->state_cur->fb->type == BUFFER_PIXMAN_DUMB) &&
|
|
scanout_plane->state_cur->fb->width ==
|
|
output->base.current_mode->width &&
|
|
scanout_plane->state_cur->fb->height ==
|
|
output->base.current_mode->height) {
|
|
fb = drm_fb_ref(scanout_plane->state_cur->fb);
|
|
} else if (b->use_pixman) {
|
|
fb = drm_output_render_pixman(state, damage);
|
|
} else {
|
|
fb = drm_output_render_gl(state, damage);
|
|
}
|
|
|
|
if (!fb) {
|
|
drm_plane_state_put_back(scanout_state);
|
|
return;
|
|
}
|
|
|
|
scanout_state->fb = fb;
|
|
scanout_state->output = output;
|
|
|
|
scanout_state->src_x = 0;
|
|
scanout_state->src_y = 0;
|
|
scanout_state->src_w = output->base.current_mode->width << 16;
|
|
scanout_state->src_h = output->base.current_mode->height << 16;
|
|
|
|
scanout_state->dest_x = 0;
|
|
scanout_state->dest_y = 0;
|
|
scanout_state->dest_w = scanout_state->src_w >> 16;
|
|
scanout_state->dest_h = scanout_state->src_h >> 16;
|
|
|
|
|
|
pixman_region32_subtract(&c->primary_plane.damage,
|
|
&c->primary_plane.damage, damage);
|
|
}
|
|
|
|
static void
|
|
drm_output_set_gamma(struct weston_output *output_base,
|
|
uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b)
|
|
{
|
|
int rc;
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_backend *backend =
|
|
to_drm_backend(output->base.compositor);
|
|
|
|
/* check */
|
|
if (output_base->gamma_size != size)
|
|
return;
|
|
|
|
rc = drmModeCrtcSetGamma(backend->drm.fd,
|
|
output->crtc_id,
|
|
size, r, g, b);
|
|
if (rc)
|
|
weston_log("set gamma failed: %m\n");
|
|
}
|
|
|
|
/* Determine the type of vblank synchronization to use for the output.
|
|
*
|
|
* The pipe parameter indicates which CRTC is in use. Knowing this, we
|
|
* can determine which vblank sequence type to use for it. Traditional
|
|
* cards had only two CRTCs, with CRTC 0 using no special flags, and
|
|
* CRTC 1 using DRM_VBLANK_SECONDARY. The first bit of the pipe
|
|
* parameter indicates this.
|
|
*
|
|
* Bits 1-5 of the pipe parameter are 5 bit wide pipe number between
|
|
* 0-31. If this is non-zero it indicates we're dealing with a
|
|
* multi-gpu situation and we need to calculate the vblank sync
|
|
* using DRM_BLANK_HIGH_CRTC_MASK.
|
|
*/
|
|
static unsigned int
|
|
drm_waitvblank_pipe(struct drm_output *output)
|
|
{
|
|
if (output->pipe > 1)
|
|
return (output->pipe << DRM_VBLANK_HIGH_CRTC_SHIFT) &
|
|
DRM_VBLANK_HIGH_CRTC_MASK;
|
|
else if (output->pipe > 0)
|
|
return DRM_VBLANK_SECONDARY;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
drm_output_apply_state_legacy(struct drm_output_state *state)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct drm_backend *backend = to_drm_backend(output->base.compositor);
|
|
struct drm_plane *scanout_plane = output->scanout_plane;
|
|
struct drm_property_info *dpms_prop;
|
|
struct drm_plane_state *scanout_state;
|
|
struct drm_plane_state *ps;
|
|
struct drm_mode *mode;
|
|
struct drm_head *head;
|
|
const struct pixel_format_info *pinfo = NULL;
|
|
uint32_t connectors[MAX_CLONED_CONNECTORS];
|
|
int n_conn = 0;
|
|
struct timespec now;
|
|
int ret = 0;
|
|
|
|
wl_list_for_each(head, &output->base.head_list, base.output_link) {
|
|
assert(n_conn < MAX_CLONED_CONNECTORS);
|
|
connectors[n_conn++] = head->connector_id;
|
|
}
|
|
|
|
/* If disable_planes is set then assign_planes() wasn't
|
|
* called for this render, so we could still have a stale
|
|
* cursor plane set up.
|
|
*/
|
|
if (output->base.disable_planes) {
|
|
output->cursor_view = NULL;
|
|
if (output->cursor_plane) {
|
|
output->cursor_plane->base.x = INT32_MIN;
|
|
output->cursor_plane->base.y = INT32_MIN;
|
|
}
|
|
}
|
|
|
|
if (state->dpms != WESTON_DPMS_ON) {
|
|
wl_list_for_each(ps, &state->plane_list, link) {
|
|
struct drm_plane *p = ps->plane;
|
|
assert(ps->fb == NULL);
|
|
assert(ps->output == NULL);
|
|
|
|
if (p->type != WDRM_PLANE_TYPE_OVERLAY)
|
|
continue;
|
|
|
|
ret = drmModeSetPlane(backend->drm.fd, p->plane_id,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
if (ret)
|
|
weston_log("drmModeSetPlane failed disable: %m\n");
|
|
}
|
|
|
|
if (output->cursor_plane) {
|
|
ret = drmModeSetCursor(backend->drm.fd, output->crtc_id,
|
|
0, 0, 0);
|
|
if (ret)
|
|
weston_log("drmModeSetCursor failed disable: %m\n");
|
|
}
|
|
|
|
ret = drmModeSetCrtc(backend->drm.fd, output->crtc_id, 0, 0, 0,
|
|
NULL, 0, NULL);
|
|
if (ret)
|
|
weston_log("drmModeSetCrtc failed disabling: %m\n");
|
|
|
|
drm_output_assign_state(state, DRM_STATE_APPLY_SYNC);
|
|
weston_compositor_read_presentation_clock(output->base.compositor, &now);
|
|
drm_output_update_complete(output,
|
|
WP_PRESENTATION_FEEDBACK_KIND_HW_COMPLETION,
|
|
now.tv_sec, now.tv_nsec / 1000);
|
|
|
|
return 0;
|
|
}
|
|
|
|
scanout_state =
|
|
drm_output_state_get_existing_plane(state, scanout_plane);
|
|
|
|
/* The legacy SetCrtc API doesn't allow us to do scaling, and the
|
|
* legacy PageFlip API doesn't allow us to do clipping either. */
|
|
assert(scanout_state->src_x == 0);
|
|
assert(scanout_state->src_y == 0);
|
|
assert(scanout_state->src_w ==
|
|
(unsigned) (output->base.current_mode->width << 16));
|
|
assert(scanout_state->src_h ==
|
|
(unsigned) (output->base.current_mode->height << 16));
|
|
assert(scanout_state->dest_x == 0);
|
|
assert(scanout_state->dest_y == 0);
|
|
assert(scanout_state->dest_w == scanout_state->src_w >> 16);
|
|
assert(scanout_state->dest_h == scanout_state->src_h >> 16);
|
|
|
|
mode = to_drm_mode(output->base.current_mode);
|
|
if (backend->state_invalid ||
|
|
!scanout_plane->state_cur->fb ||
|
|
scanout_plane->state_cur->fb->strides[0] !=
|
|
scanout_state->fb->strides[0]) {
|
|
|
|
ret = drmModeSetCrtc(backend->drm.fd, output->crtc_id,
|
|
scanout_state->fb->fb_id,
|
|
0, 0,
|
|
connectors, n_conn,
|
|
&mode->mode_info);
|
|
if (ret) {
|
|
weston_log("set mode failed: %m\n");
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
pinfo = scanout_state->fb->format;
|
|
drm_debug(backend, "\t[CRTC:%u, PLANE:%u] FORMAT: %s\n",
|
|
output->crtc_id, scanout_state->plane->plane_id,
|
|
pinfo ? pinfo->drm_format_name : "UNKNOWN");
|
|
|
|
if (drmModePageFlip(backend->drm.fd, output->crtc_id,
|
|
scanout_state->fb->fb_id,
|
|
DRM_MODE_PAGE_FLIP_EVENT, output) < 0) {
|
|
weston_log("queueing pageflip failed: %m\n");
|
|
goto err;
|
|
}
|
|
|
|
assert(!output->page_flip_pending);
|
|
|
|
if (output->pageflip_timer)
|
|
wl_event_source_timer_update(output->pageflip_timer,
|
|
backend->pageflip_timeout);
|
|
|
|
drm_output_set_cursor(state);
|
|
|
|
/*
|
|
* Now, update all the sprite surfaces
|
|
*/
|
|
wl_list_for_each(ps, &state->plane_list, link) {
|
|
uint32_t flags = 0, fb_id = 0;
|
|
drmVBlank vbl = {
|
|
.request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT,
|
|
.request.sequence = 1,
|
|
};
|
|
struct drm_plane *p = ps->plane;
|
|
|
|
if (p->type != WDRM_PLANE_TYPE_OVERLAY)
|
|
continue;
|
|
|
|
assert(p->state_cur->complete);
|
|
assert(!!p->state_cur->output == !!p->state_cur->fb);
|
|
assert(!p->state_cur->output || p->state_cur->output == output);
|
|
assert(!ps->complete);
|
|
assert(!ps->output || ps->output == output);
|
|
assert(!!ps->output == !!ps->fb);
|
|
|
|
if (ps->fb && !backend->sprites_hidden)
|
|
fb_id = ps->fb->fb_id;
|
|
|
|
ret = drmModeSetPlane(backend->drm.fd, p->plane_id,
|
|
output->crtc_id, fb_id, flags,
|
|
ps->dest_x, ps->dest_y,
|
|
ps->dest_w, ps->dest_h,
|
|
ps->src_x, ps->src_y,
|
|
ps->src_w, ps->src_h);
|
|
if (ret)
|
|
weston_log("setplane failed: %d: %s\n",
|
|
ret, strerror(errno));
|
|
|
|
vbl.request.type |= drm_waitvblank_pipe(output);
|
|
|
|
/*
|
|
* Queue a vblank signal so we know when the surface
|
|
* becomes active on the display or has been replaced.
|
|
*/
|
|
vbl.request.signal = (unsigned long) ps;
|
|
ret = drmWaitVBlank(backend->drm.fd, &vbl);
|
|
if (ret) {
|
|
weston_log("vblank event request failed: %d: %s\n",
|
|
ret, strerror(errno));
|
|
}
|
|
}
|
|
|
|
if (state->dpms != output->state_cur->dpms) {
|
|
wl_list_for_each(head, &output->base.head_list, base.output_link) {
|
|
dpms_prop = &head->props_conn[WDRM_CONNECTOR_DPMS];
|
|
if (dpms_prop->prop_id == 0)
|
|
continue;
|
|
|
|
ret = drmModeConnectorSetProperty(backend->drm.fd,
|
|
head->connector_id,
|
|
dpms_prop->prop_id,
|
|
state->dpms);
|
|
if (ret) {
|
|
weston_log("DRM: DPMS: failed property set for %s\n",
|
|
head->base.name);
|
|
}
|
|
}
|
|
}
|
|
|
|
drm_output_assign_state(state, DRM_STATE_APPLY_ASYNC);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
output->cursor_view = NULL;
|
|
drm_output_state_free(state);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef HAVE_DRM_ATOMIC
|
|
static int
|
|
crtc_add_prop(drmModeAtomicReq *req, struct drm_output *output,
|
|
enum wdrm_crtc_property prop, uint64_t val)
|
|
{
|
|
struct drm_property_info *info = &output->props_crtc[prop];
|
|
int ret;
|
|
|
|
if (info->prop_id == 0)
|
|
return -1;
|
|
|
|
ret = drmModeAtomicAddProperty(req, output->crtc_id, info->prop_id,
|
|
val);
|
|
drm_debug(output->backend, "\t\t\t[CRTC:%lu] %lu (%s) -> %llu (0x%llx)\n",
|
|
(unsigned long) output->crtc_id,
|
|
(unsigned long) info->prop_id, info->name,
|
|
(unsigned long long) val, (unsigned long long) val);
|
|
return (ret <= 0) ? -1 : 0;
|
|
}
|
|
|
|
static int
|
|
connector_add_prop(drmModeAtomicReq *req, struct drm_head *head,
|
|
enum wdrm_connector_property prop, uint64_t val)
|
|
{
|
|
struct drm_property_info *info = &head->props_conn[prop];
|
|
int ret;
|
|
|
|
if (info->prop_id == 0)
|
|
return -1;
|
|
|
|
ret = drmModeAtomicAddProperty(req, head->connector_id,
|
|
info->prop_id, val);
|
|
drm_debug(head->backend, "\t\t\t[CONN:%lu] %lu (%s) -> %llu (0x%llx)\n",
|
|
(unsigned long) head->connector_id,
|
|
(unsigned long) info->prop_id, info->name,
|
|
(unsigned long long) val, (unsigned long long) val);
|
|
return (ret <= 0) ? -1 : 0;
|
|
}
|
|
|
|
static int
|
|
plane_add_prop(drmModeAtomicReq *req, struct drm_plane *plane,
|
|
enum wdrm_plane_property prop, uint64_t val)
|
|
{
|
|
struct drm_property_info *info = &plane->props[prop];
|
|
int ret;
|
|
|
|
if (info->prop_id == 0)
|
|
return -1;
|
|
|
|
ret = drmModeAtomicAddProperty(req, plane->plane_id, info->prop_id,
|
|
val);
|
|
drm_debug(plane->backend, "\t\t\t[PLANE:%lu] %lu (%s) -> %llu (0x%llx)\n",
|
|
(unsigned long) plane->plane_id,
|
|
(unsigned long) info->prop_id, info->name,
|
|
(unsigned long long) val, (unsigned long long) val);
|
|
return (ret <= 0) ? -1 : 0;
|
|
}
|
|
|
|
static int
|
|
drm_mode_ensure_blob(struct drm_backend *backend, struct drm_mode *mode)
|
|
{
|
|
int ret;
|
|
|
|
if (mode->blob_id)
|
|
return 0;
|
|
|
|
ret = drmModeCreatePropertyBlob(backend->drm.fd,
|
|
&mode->mode_info,
|
|
sizeof(mode->mode_info),
|
|
&mode->blob_id);
|
|
if (ret != 0)
|
|
weston_log("failed to create mode property blob: %m\n");
|
|
|
|
drm_debug(backend, "\t\t\t[atomic] created new mode blob %lu for %s",
|
|
(unsigned long) mode->blob_id, mode->mode_info.name);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
drm_output_apply_state_atomic(struct drm_output_state *state,
|
|
drmModeAtomicReq *req,
|
|
uint32_t *flags)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct drm_plane_state *plane_state;
|
|
struct drm_mode *current_mode = to_drm_mode(output->base.current_mode);
|
|
struct drm_head *head;
|
|
int ret = 0;
|
|
|
|
drm_debug(b, "\t\t[atomic] %s output %lu (%s) state\n",
|
|
(*flags & DRM_MODE_ATOMIC_TEST_ONLY) ? "testing" : "applying",
|
|
(unsigned long) output->base.id, output->base.name);
|
|
|
|
if (state->dpms != output->state_cur->dpms) {
|
|
drm_debug(b, "\t\t\t[atomic] DPMS state differs, modeset OK\n");
|
|
*flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
|
|
}
|
|
|
|
if (state->dpms == WESTON_DPMS_ON) {
|
|
ret = drm_mode_ensure_blob(b, current_mode);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
ret |= crtc_add_prop(req, output, WDRM_CRTC_MODE_ID,
|
|
current_mode->blob_id);
|
|
ret |= crtc_add_prop(req, output, WDRM_CRTC_ACTIVE, 1);
|
|
|
|
/* No need for the DPMS property, since it is implicit in
|
|
* routing and CRTC activity. */
|
|
wl_list_for_each(head, &output->base.head_list, base.output_link) {
|
|
ret |= connector_add_prop(req, head, WDRM_CONNECTOR_CRTC_ID,
|
|
output->crtc_id);
|
|
}
|
|
} else {
|
|
ret |= crtc_add_prop(req, output, WDRM_CRTC_MODE_ID, 0);
|
|
ret |= crtc_add_prop(req, output, WDRM_CRTC_ACTIVE, 0);
|
|
|
|
/* No need for the DPMS property, since it is implicit in
|
|
* routing and CRTC activity. */
|
|
wl_list_for_each(head, &output->base.head_list, base.output_link)
|
|
ret |= connector_add_prop(req, head, WDRM_CONNECTOR_CRTC_ID, 0);
|
|
}
|
|
|
|
if (ret != 0) {
|
|
weston_log("couldn't set atomic CRTC/connector state\n");
|
|
return ret;
|
|
}
|
|
|
|
wl_list_for_each(plane_state, &state->plane_list, link) {
|
|
struct drm_plane *plane = plane_state->plane;
|
|
const struct pixel_format_info *pinfo = NULL;
|
|
|
|
ret |= plane_add_prop(req, plane, WDRM_PLANE_FB_ID,
|
|
plane_state->fb ? plane_state->fb->fb_id : 0);
|
|
ret |= plane_add_prop(req, plane, WDRM_PLANE_CRTC_ID,
|
|
plane_state->fb ? output->crtc_id : 0);
|
|
ret |= plane_add_prop(req, plane, WDRM_PLANE_SRC_X,
|
|
plane_state->src_x);
|
|
ret |= plane_add_prop(req, plane, WDRM_PLANE_SRC_Y,
|
|
plane_state->src_y);
|
|
ret |= plane_add_prop(req, plane, WDRM_PLANE_SRC_W,
|
|
plane_state->src_w);
|
|
ret |= plane_add_prop(req, plane, WDRM_PLANE_SRC_H,
|
|
plane_state->src_h);
|
|
ret |= plane_add_prop(req, plane, WDRM_PLANE_CRTC_X,
|
|
plane_state->dest_x);
|
|
ret |= plane_add_prop(req, plane, WDRM_PLANE_CRTC_Y,
|
|
plane_state->dest_y);
|
|
ret |= plane_add_prop(req, plane, WDRM_PLANE_CRTC_W,
|
|
plane_state->dest_w);
|
|
ret |= plane_add_prop(req, plane, WDRM_PLANE_CRTC_H,
|
|
plane_state->dest_h);
|
|
|
|
if (plane_state->fb && plane_state->fb->format)
|
|
pinfo = plane_state->fb->format;
|
|
|
|
drm_debug(plane->backend, "\t\t\t[PLANE:%lu] FORMAT: %s\n",
|
|
(unsigned long) plane->plane_id,
|
|
pinfo ? pinfo->drm_format_name : "UNKNOWN");
|
|
|
|
if (ret != 0) {
|
|
weston_log("couldn't set plane state\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Helper function used only by drm_pending_state_apply, with the same
|
|
* guarantees and constraints as that function.
|
|
*/
|
|
static int
|
|
drm_pending_state_apply_atomic(struct drm_pending_state *pending_state,
|
|
enum drm_state_apply_mode mode)
|
|
{
|
|
struct drm_backend *b = pending_state->backend;
|
|
struct drm_output_state *output_state, *tmp;
|
|
struct drm_plane *plane;
|
|
drmModeAtomicReq *req = drmModeAtomicAlloc();
|
|
uint32_t flags;
|
|
int ret = 0;
|
|
|
|
if (!req)
|
|
return -1;
|
|
|
|
switch (mode) {
|
|
case DRM_STATE_APPLY_SYNC:
|
|
flags = 0;
|
|
break;
|
|
case DRM_STATE_APPLY_ASYNC:
|
|
flags = DRM_MODE_PAGE_FLIP_EVENT | DRM_MODE_ATOMIC_NONBLOCK;
|
|
break;
|
|
case DRM_STATE_TEST_ONLY:
|
|
flags = DRM_MODE_ATOMIC_TEST_ONLY;
|
|
break;
|
|
}
|
|
|
|
if (b->state_invalid) {
|
|
struct weston_head *head_base;
|
|
struct drm_head *head;
|
|
uint32_t *unused;
|
|
int err;
|
|
|
|
drm_debug(b, "\t\t[atomic] previous state invalid; "
|
|
"starting with fresh state\n");
|
|
|
|
/* If we need to reset all our state (e.g. because we've
|
|
* just started, or just been VT-switched in), explicitly
|
|
* disable all the CRTCs and connectors we aren't using. */
|
|
wl_list_for_each(head_base,
|
|
&b->compositor->head_list, compositor_link) {
|
|
struct drm_property_info *info;
|
|
|
|
if (weston_head_is_enabled(head_base))
|
|
continue;
|
|
|
|
head = to_drm_head(head_base);
|
|
|
|
drm_debug(b, "\t\t[atomic] disabling inactive head %s\n",
|
|
head_base->name);
|
|
|
|
info = &head->props_conn[WDRM_CONNECTOR_CRTC_ID];
|
|
err = drmModeAtomicAddProperty(req, head->connector_id,
|
|
info->prop_id, 0);
|
|
drm_debug(b, "\t\t\t[CONN:%lu] %lu (%s) -> 0\n",
|
|
(unsigned long) head->connector_id,
|
|
(unsigned long) info->prop_id,
|
|
info->name);
|
|
if (err <= 0)
|
|
ret = -1;
|
|
}
|
|
|
|
wl_array_for_each(unused, &b->unused_crtcs) {
|
|
struct drm_property_info infos[WDRM_CRTC__COUNT];
|
|
struct drm_property_info *info;
|
|
drmModeObjectProperties *props;
|
|
uint64_t active;
|
|
|
|
memset(infos, 0, sizeof(infos));
|
|
|
|
/* We can't emit a disable on a CRTC that's already
|
|
* off, as the kernel will refuse to generate an event
|
|
* for an off->off state and fail the commit.
|
|
*/
|
|
props = drmModeObjectGetProperties(b->drm.fd,
|
|
*unused,
|
|
DRM_MODE_OBJECT_CRTC);
|
|
if (!props) {
|
|
ret = -1;
|
|
continue;
|
|
}
|
|
|
|
drm_property_info_populate(b, crtc_props, infos,
|
|
WDRM_CRTC__COUNT,
|
|
props);
|
|
|
|
info = &infos[WDRM_CRTC_ACTIVE];
|
|
active = drm_property_get_value(info, props, 0);
|
|
drmModeFreeObjectProperties(props);
|
|
if (active == 0) {
|
|
drm_property_info_free(infos, WDRM_CRTC__COUNT);
|
|
continue;
|
|
}
|
|
|
|
drm_debug(b, "\t\t[atomic] disabling unused CRTC %lu\n",
|
|
(unsigned long) *unused);
|
|
|
|
drm_debug(b, "\t\t\t[CRTC:%lu] %lu (%s) -> 0\n",
|
|
(unsigned long) *unused,
|
|
(unsigned long) info->prop_id, info->name);
|
|
err = drmModeAtomicAddProperty(req, *unused,
|
|
info->prop_id, 0);
|
|
if (err <= 0)
|
|
ret = -1;
|
|
|
|
info = &infos[WDRM_CRTC_MODE_ID];
|
|
drm_debug(b, "\t\t\t[CRTC:%lu] %lu (%s) -> 0\n",
|
|
(unsigned long) *unused,
|
|
(unsigned long) info->prop_id, info->name);
|
|
err = drmModeAtomicAddProperty(req, *unused,
|
|
info->prop_id, 0);
|
|
if (err <= 0)
|
|
ret = -1;
|
|
|
|
drm_property_info_free(infos, WDRM_CRTC__COUNT);
|
|
}
|
|
|
|
/* Disable all the planes; planes which are being used will
|
|
* override this state in the output-state application. */
|
|
wl_list_for_each(plane, &b->plane_list, link) {
|
|
drm_debug(b, "\t\t[atomic] starting with plane %lu disabled\n",
|
|
(unsigned long) plane->plane_id);
|
|
plane_add_prop(req, plane, WDRM_PLANE_CRTC_ID, 0);
|
|
plane_add_prop(req, plane, WDRM_PLANE_FB_ID, 0);
|
|
}
|
|
|
|
flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
|
|
}
|
|
|
|
wl_list_for_each(output_state, &pending_state->output_list, link) {
|
|
if (output_state->output->virtual)
|
|
continue;
|
|
if (mode == DRM_STATE_APPLY_SYNC)
|
|
assert(output_state->dpms == WESTON_DPMS_OFF);
|
|
ret |= drm_output_apply_state_atomic(output_state, req, &flags);
|
|
}
|
|
|
|
if (ret != 0) {
|
|
weston_log("atomic: couldn't compile atomic state\n");
|
|
goto out;
|
|
}
|
|
|
|
ret = drmModeAtomicCommit(b->drm.fd, req, flags, b);
|
|
drm_debug(b, "[atomic] drmModeAtomicCommit\n");
|
|
|
|
/* Test commits do not take ownership of the state; return
|
|
* without freeing here. */
|
|
if (mode == DRM_STATE_TEST_ONLY) {
|
|
drmModeAtomicFree(req);
|
|
return ret;
|
|
}
|
|
|
|
if (ret != 0) {
|
|
weston_log("atomic: couldn't commit new state: %m\n");
|
|
goto out;
|
|
}
|
|
|
|
wl_list_for_each_safe(output_state, tmp, &pending_state->output_list,
|
|
link)
|
|
drm_output_assign_state(output_state, mode);
|
|
|
|
b->state_invalid = false;
|
|
|
|
assert(wl_list_empty(&pending_state->output_list));
|
|
|
|
out:
|
|
drmModeAtomicFree(req);
|
|
drm_pending_state_free(pending_state);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* Tests a pending state, to see if the kernel will accept the update as
|
|
* constructed.
|
|
*
|
|
* Using atomic modesetting, the kernel performs the same checks as it would
|
|
* on a real commit, returning success or failure without actually modifying
|
|
* the running state. It does not return -EBUSY if there are pending updates
|
|
* in flight, so states may be tested at any point, however this means a
|
|
* state which passed testing may fail on a real commit if the timing is not
|
|
* respected (e.g. committing before the previous commit has completed).
|
|
*
|
|
* Without atomic modesetting, we have no way to check, so we optimistically
|
|
* claim it will work.
|
|
*
|
|
* Unlike drm_pending_state_apply() and drm_pending_state_apply_sync(), this
|
|
* function does _not_ take ownership of pending_state, nor does it clear
|
|
* state_invalid.
|
|
*/
|
|
static int
|
|
drm_pending_state_test(struct drm_pending_state *pending_state)
|
|
{
|
|
#ifdef HAVE_DRM_ATOMIC
|
|
struct drm_backend *b = pending_state->backend;
|
|
|
|
if (b->atomic_modeset)
|
|
return drm_pending_state_apply_atomic(pending_state,
|
|
DRM_STATE_TEST_ONLY);
|
|
#endif
|
|
|
|
/* We have no way to test state before application on the legacy
|
|
* modesetting API, so just claim it succeeded. */
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Applies all of a pending_state asynchronously: the primary entry point for
|
|
* applying KMS state to a device. Updates the state for all outputs in the
|
|
* pending_state, as well as disabling any unclaimed outputs.
|
|
*
|
|
* Unconditionally takes ownership of pending_state, and clears state_invalid.
|
|
*/
|
|
static int
|
|
drm_pending_state_apply(struct drm_pending_state *pending_state)
|
|
{
|
|
struct drm_backend *b = pending_state->backend;
|
|
struct drm_output_state *output_state, *tmp;
|
|
uint32_t *unused;
|
|
|
|
#ifdef HAVE_DRM_ATOMIC
|
|
if (b->atomic_modeset)
|
|
return drm_pending_state_apply_atomic(pending_state,
|
|
DRM_STATE_APPLY_ASYNC);
|
|
#endif
|
|
|
|
if (b->state_invalid) {
|
|
/* If we need to reset all our state (e.g. because we've
|
|
* just started, or just been VT-switched in), explicitly
|
|
* disable all the CRTCs we aren't using. This also disables
|
|
* all connectors on these CRTCs, so we don't need to do that
|
|
* separately with the pre-atomic API. */
|
|
wl_array_for_each(unused, &b->unused_crtcs)
|
|
drmModeSetCrtc(b->drm.fd, *unused, 0, 0, 0, NULL, 0,
|
|
NULL);
|
|
}
|
|
|
|
wl_list_for_each_safe(output_state, tmp, &pending_state->output_list,
|
|
link) {
|
|
struct drm_output *output = output_state->output;
|
|
int ret;
|
|
|
|
if (output->virtual) {
|
|
drm_output_assign_state(output_state,
|
|
DRM_STATE_APPLY_ASYNC);
|
|
continue;
|
|
}
|
|
|
|
ret = drm_output_apply_state_legacy(output_state);
|
|
if (ret != 0) {
|
|
weston_log("Couldn't apply state for output %s\n",
|
|
output->base.name);
|
|
}
|
|
}
|
|
|
|
b->state_invalid = false;
|
|
|
|
assert(wl_list_empty(&pending_state->output_list));
|
|
|
|
drm_pending_state_free(pending_state);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* The synchronous version of drm_pending_state_apply. May only be used to
|
|
* disable outputs. Does so synchronously: the request is guaranteed to have
|
|
* completed on return, and the output will not be touched afterwards.
|
|
*
|
|
* Unconditionally takes ownership of pending_state, and clears state_invalid.
|
|
*/
|
|
static int
|
|
drm_pending_state_apply_sync(struct drm_pending_state *pending_state)
|
|
{
|
|
struct drm_backend *b = pending_state->backend;
|
|
struct drm_output_state *output_state, *tmp;
|
|
uint32_t *unused;
|
|
|
|
#ifdef HAVE_DRM_ATOMIC
|
|
if (b->atomic_modeset)
|
|
return drm_pending_state_apply_atomic(pending_state,
|
|
DRM_STATE_APPLY_SYNC);
|
|
#endif
|
|
|
|
if (b->state_invalid) {
|
|
/* If we need to reset all our state (e.g. because we've
|
|
* just started, or just been VT-switched in), explicitly
|
|
* disable all the CRTCs we aren't using. This also disables
|
|
* all connectors on these CRTCs, so we don't need to do that
|
|
* separately with the pre-atomic API. */
|
|
wl_array_for_each(unused, &b->unused_crtcs)
|
|
drmModeSetCrtc(b->drm.fd, *unused, 0, 0, 0, NULL, 0,
|
|
NULL);
|
|
}
|
|
|
|
wl_list_for_each_safe(output_state, tmp, &pending_state->output_list,
|
|
link) {
|
|
int ret;
|
|
|
|
assert(output_state->dpms == WESTON_DPMS_OFF);
|
|
ret = drm_output_apply_state_legacy(output_state);
|
|
if (ret != 0) {
|
|
weston_log("Couldn't apply state for output %s\n",
|
|
output_state->output->base.name);
|
|
}
|
|
}
|
|
|
|
b->state_invalid = false;
|
|
|
|
assert(wl_list_empty(&pending_state->output_list));
|
|
|
|
drm_pending_state_free(pending_state);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
drm_output_repaint(struct weston_output *output_base,
|
|
pixman_region32_t *damage,
|
|
void *repaint_data)
|
|
{
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_output_state *state = NULL;
|
|
struct drm_plane_state *scanout_state;
|
|
|
|
assert(!output->virtual);
|
|
|
|
if (output->disable_pending || output->destroy_pending)
|
|
goto err;
|
|
|
|
assert(!output->state_last);
|
|
|
|
/* If planes have been disabled in the core, we might not have
|
|
* hit assign_planes at all, so might not have valid output state
|
|
* here. */
|
|
state = drm_pending_state_get_output(pending_state, output);
|
|
if (!state)
|
|
state = drm_output_state_duplicate(output->state_cur,
|
|
pending_state,
|
|
DRM_OUTPUT_STATE_CLEAR_PLANES);
|
|
state->dpms = WESTON_DPMS_ON;
|
|
|
|
drm_output_render(state, damage);
|
|
scanout_state = drm_output_state_get_plane(state,
|
|
output->scanout_plane);
|
|
if (!scanout_state || !scanout_state->fb)
|
|
goto err;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
drm_output_state_free(state);
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
drm_output_start_repaint_loop(struct weston_output *output_base)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_pending_state *pending_state;
|
|
struct drm_plane *scanout_plane = output->scanout_plane;
|
|
struct drm_backend *backend =
|
|
to_drm_backend(output_base->compositor);
|
|
struct timespec ts, tnow;
|
|
struct timespec vbl2now;
|
|
int64_t refresh_nsec;
|
|
int ret;
|
|
drmVBlank vbl = {
|
|
.request.type = DRM_VBLANK_RELATIVE,
|
|
.request.sequence = 0,
|
|
.request.signal = 0,
|
|
};
|
|
|
|
if (output->disable_pending || output->destroy_pending)
|
|
return;
|
|
|
|
if (!output->scanout_plane->state_cur->fb) {
|
|
/* We can't page flip if there's no mode set */
|
|
goto finish_frame;
|
|
}
|
|
|
|
/* Need to smash all state in from scratch; current timings might not
|
|
* be what we want, page flip might not work, etc.
|
|
*/
|
|
if (backend->state_invalid)
|
|
goto finish_frame;
|
|
|
|
assert(scanout_plane->state_cur->output == output);
|
|
|
|
/* Try to get current msc and timestamp via instant query */
|
|
vbl.request.type |= drm_waitvblank_pipe(output);
|
|
ret = drmWaitVBlank(backend->drm.fd, &vbl);
|
|
|
|
/* Error ret or zero timestamp means failure to get valid timestamp */
|
|
if ((ret == 0) && (vbl.reply.tval_sec > 0 || vbl.reply.tval_usec > 0)) {
|
|
ts.tv_sec = vbl.reply.tval_sec;
|
|
ts.tv_nsec = vbl.reply.tval_usec * 1000;
|
|
|
|
/* Valid timestamp for most recent vblank - not stale?
|
|
* Stale ts could happen on Linux 3.17+, so make sure it
|
|
* is not older than 1 refresh duration since now.
|
|
*/
|
|
weston_compositor_read_presentation_clock(backend->compositor,
|
|
&tnow);
|
|
timespec_sub(&vbl2now, &tnow, &ts);
|
|
refresh_nsec =
|
|
millihz_to_nsec(output->base.current_mode->refresh);
|
|
if (timespec_to_nsec(&vbl2now) < refresh_nsec) {
|
|
drm_output_update_msc(output, vbl.reply.sequence);
|
|
weston_output_finish_frame(output_base, &ts,
|
|
WP_PRESENTATION_FEEDBACK_INVALID);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* Immediate query didn't provide valid timestamp.
|
|
* Use pageflip fallback.
|
|
*/
|
|
|
|
assert(!output->page_flip_pending);
|
|
assert(!output->state_last);
|
|
|
|
pending_state = drm_pending_state_alloc(backend);
|
|
drm_output_state_duplicate(output->state_cur, pending_state,
|
|
DRM_OUTPUT_STATE_PRESERVE_PLANES);
|
|
|
|
ret = drm_pending_state_apply(pending_state);
|
|
if (ret != 0) {
|
|
weston_log("applying repaint-start state failed: %m\n");
|
|
goto finish_frame;
|
|
}
|
|
|
|
return;
|
|
|
|
finish_frame:
|
|
/* if we cannot page-flip, immediately finish frame */
|
|
weston_output_finish_frame(output_base, NULL,
|
|
WP_PRESENTATION_FEEDBACK_INVALID);
|
|
}
|
|
|
|
static void
|
|
drm_output_update_msc(struct drm_output *output, unsigned int seq)
|
|
{
|
|
uint64_t msc_hi = output->base.msc >> 32;
|
|
|
|
if (seq < (output->base.msc & 0xffffffff))
|
|
msc_hi++;
|
|
|
|
output->base.msc = (msc_hi << 32) + seq;
|
|
}
|
|
|
|
static void
|
|
vblank_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec,
|
|
void *data)
|
|
{
|
|
struct drm_plane_state *ps = (struct drm_plane_state *) data;
|
|
struct drm_output_state *os = ps->output_state;
|
|
struct drm_output *output = os->output;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
uint32_t flags = WP_PRESENTATION_FEEDBACK_KIND_HW_COMPLETION |
|
|
WP_PRESENTATION_FEEDBACK_KIND_HW_CLOCK;
|
|
|
|
assert(!b->atomic_modeset);
|
|
|
|
drm_output_update_msc(output, frame);
|
|
output->vblank_pending--;
|
|
assert(output->vblank_pending >= 0);
|
|
|
|
assert(ps->fb);
|
|
|
|
if (output->page_flip_pending || output->vblank_pending)
|
|
return;
|
|
|
|
drm_output_update_complete(output, flags, sec, usec);
|
|
}
|
|
|
|
static void
|
|
page_flip_handler(int fd, unsigned int frame,
|
|
unsigned int sec, unsigned int usec, void *data)
|
|
{
|
|
struct drm_output *output = data;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
uint32_t flags = WP_PRESENTATION_FEEDBACK_KIND_VSYNC |
|
|
WP_PRESENTATION_FEEDBACK_KIND_HW_COMPLETION |
|
|
WP_PRESENTATION_FEEDBACK_KIND_HW_CLOCK;
|
|
|
|
drm_output_update_msc(output, frame);
|
|
|
|
assert(!b->atomic_modeset);
|
|
assert(output->page_flip_pending);
|
|
output->page_flip_pending = 0;
|
|
|
|
if (output->vblank_pending)
|
|
return;
|
|
|
|
drm_output_update_complete(output, flags, sec, usec);
|
|
}
|
|
|
|
/**
|
|
* Begin a new repaint cycle
|
|
*
|
|
* Called by the core compositor at the beginning of a repaint cycle. Creates
|
|
* a new pending_state structure to own any output state created by individual
|
|
* output repaint functions until the repaint is flushed or cancelled.
|
|
*/
|
|
static void *
|
|
drm_repaint_begin(struct weston_compositor *compositor)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_pending_state *ret;
|
|
|
|
ret = drm_pending_state_alloc(b);
|
|
b->repaint_data = ret;
|
|
|
|
if (weston_debug_scope_is_enabled(b->debug)) {
|
|
char *dbg = weston_compositor_print_scene_graph(compositor);
|
|
drm_debug(b, "[repaint] Beginning repaint; pending_state %p\n",
|
|
ret);
|
|
drm_debug(b, "%s", dbg);
|
|
free(dbg);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Flush a repaint set
|
|
*
|
|
* Called by the core compositor when a repaint cycle has been completed
|
|
* and should be flushed. Frees the pending state, transitioning ownership
|
|
* of the output state from the pending state, to the update itself. When
|
|
* the update completes (see drm_output_update_complete), the output
|
|
* state will be freed.
|
|
*/
|
|
static void
|
|
drm_repaint_flush(struct weston_compositor *compositor, void *repaint_data)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
|
|
drm_pending_state_apply(pending_state);
|
|
drm_debug(b, "[repaint] flushed pending_state %p\n", pending_state);
|
|
b->repaint_data = NULL;
|
|
}
|
|
|
|
/**
|
|
* Cancel a repaint set
|
|
*
|
|
* Called by the core compositor when a repaint has finished, so the data
|
|
* held across the repaint cycle should be discarded.
|
|
*/
|
|
static void
|
|
drm_repaint_cancel(struct weston_compositor *compositor, void *repaint_data)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
|
|
drm_pending_state_free(pending_state);
|
|
drm_debug(b, "[repaint] cancel pending_state %p\n", pending_state);
|
|
b->repaint_data = NULL;
|
|
}
|
|
|
|
#ifdef HAVE_DRM_ATOMIC
|
|
static void
|
|
atomic_flip_handler(int fd, unsigned int frame, unsigned int sec,
|
|
unsigned int usec, unsigned int crtc_id, void *data)
|
|
{
|
|
struct drm_backend *b = data;
|
|
struct drm_output *output = drm_output_find_by_crtc(b, crtc_id);
|
|
uint32_t flags = WP_PRESENTATION_FEEDBACK_KIND_VSYNC |
|
|
WP_PRESENTATION_FEEDBACK_KIND_HW_COMPLETION |
|
|
WP_PRESENTATION_FEEDBACK_KIND_HW_CLOCK;
|
|
|
|
/* During the initial modeset, we can disable CRTCs which we don't
|
|
* actually handle during normal operation; this will give us events
|
|
* for unknown outputs. Ignore them. */
|
|
if (!output || !output->base.enabled)
|
|
return;
|
|
|
|
drm_output_update_msc(output, frame);
|
|
|
|
drm_debug(b, "[atomic][CRTC:%u] flip processing started\n", crtc_id);
|
|
assert(b->atomic_modeset);
|
|
assert(output->atomic_complete_pending);
|
|
output->atomic_complete_pending = 0;
|
|
|
|
drm_output_update_complete(output, flags, sec, usec);
|
|
drm_debug(b, "[atomic][CRTC:%u] flip processing completed\n", crtc_id);
|
|
}
|
|
#endif
|
|
|
|
static struct drm_plane_state *
|
|
drm_output_prepare_overlay_view(struct drm_output_state *output_state,
|
|
struct weston_view *ev,
|
|
enum drm_output_propose_state_mode mode)
|
|
{
|
|
struct drm_output *output = output_state->output;
|
|
struct weston_compositor *ec = output->base.compositor;
|
|
struct drm_backend *b = to_drm_backend(ec);
|
|
struct drm_plane *p;
|
|
struct drm_plane_state *state = NULL;
|
|
struct drm_fb *fb;
|
|
unsigned int i;
|
|
int ret;
|
|
enum {
|
|
NO_PLANES,
|
|
NO_PLANES_WITH_FORMAT,
|
|
NO_PLANES_ACCEPTED,
|
|
PLACED_ON_PLANE,
|
|
} availability = NO_PLANES;
|
|
|
|
assert(!b->sprites_are_broken);
|
|
|
|
fb = drm_fb_get_from_view(output_state, ev);
|
|
if (!fb) {
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
|
|
" couldn't get fb\n", ev);
|
|
return NULL;
|
|
}
|
|
|
|
wl_list_for_each(p, &b->plane_list, link) {
|
|
if (p->type != WDRM_PLANE_TYPE_OVERLAY)
|
|
continue;
|
|
|
|
if (!drm_plane_is_available(p, output))
|
|
continue;
|
|
|
|
state = drm_output_state_get_plane(output_state, p);
|
|
if (state->fb) {
|
|
state = NULL;
|
|
continue;
|
|
}
|
|
|
|
if (availability == NO_PLANES)
|
|
availability = NO_PLANES_WITH_FORMAT;
|
|
|
|
/* Check whether the format is supported */
|
|
for (i = 0; i < p->count_formats; i++) {
|
|
unsigned int j;
|
|
|
|
if (p->formats[i].format != fb->format->format)
|
|
continue;
|
|
|
|
if (fb->modifier == DRM_FORMAT_MOD_INVALID)
|
|
break;
|
|
|
|
for (j = 0; j < p->formats[i].count_modifiers; j++) {
|
|
if (p->formats[i].modifiers[j] == fb->modifier)
|
|
break;
|
|
}
|
|
if (j != p->formats[i].count_modifiers)
|
|
break;
|
|
}
|
|
if (i == p->count_formats) {
|
|
drm_plane_state_put_back(state);
|
|
state = NULL;
|
|
continue;
|
|
}
|
|
|
|
if (availability == NO_PLANES_WITH_FORMAT)
|
|
availability = NO_PLANES_ACCEPTED;
|
|
|
|
state->ev = ev;
|
|
state->output = output;
|
|
if (!drm_plane_state_coords_for_view(state, ev)) {
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
|
|
"unsuitable transform\n", ev);
|
|
drm_plane_state_put_back(state);
|
|
state = NULL;
|
|
continue;
|
|
}
|
|
if (!b->atomic_modeset &&
|
|
(state->src_w != state->dest_w << 16 ||
|
|
state->src_h != state->dest_h << 16)) {
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
|
|
"no scaling without atomic\n", ev);
|
|
drm_plane_state_put_back(state);
|
|
state = NULL;
|
|
continue;
|
|
}
|
|
|
|
/* We hold one reference for the lifetime of this function;
|
|
* from calling drm_fb_get_from_view, to the out label where
|
|
* we unconditionally drop the reference. So, we take another
|
|
* reference here to live within the state. */
|
|
state->fb = drm_fb_ref(fb);
|
|
|
|
/* In planes-only mode, we don't have an incremental state to
|
|
* test against, so we just hope it'll work. */
|
|
if (mode == DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY) {
|
|
drm_debug(b, "\t\t\t\t[overlay] provisionally placing "
|
|
"view %p on overlay %lu in planes-only mode\n",
|
|
ev, (unsigned long) p->plane_id);
|
|
availability = PLACED_ON_PLANE;
|
|
goto out;
|
|
}
|
|
|
|
ret = drm_pending_state_test(output_state->pending_state);
|
|
if (ret == 0) {
|
|
drm_debug(b, "\t\t\t\t[overlay] provisionally placing "
|
|
"view %p on overlay %d in mixed mode\n",
|
|
ev, p->plane_id);
|
|
availability = PLACED_ON_PLANE;
|
|
goto out;
|
|
}
|
|
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay %lu "
|
|
"in mixed mode: kernel test failed\n",
|
|
ev, (unsigned long) p->plane_id);
|
|
|
|
drm_plane_state_put_back(state);
|
|
state = NULL;
|
|
}
|
|
|
|
switch (availability) {
|
|
case NO_PLANES:
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
|
|
"no free overlay planes\n", ev);
|
|
break;
|
|
case NO_PLANES_WITH_FORMAT:
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
|
|
"no free overlay planes matching format 0x%lx, "
|
|
"modifier 0x%llx\n",
|
|
ev, (unsigned long) fb->format,
|
|
(unsigned long long) fb->modifier);
|
|
break;
|
|
case NO_PLANES_ACCEPTED:
|
|
case PLACED_ON_PLANE:
|
|
break;
|
|
}
|
|
|
|
out:
|
|
drm_fb_unref(fb);
|
|
return state;
|
|
}
|
|
|
|
/**
|
|
* Update the image for the current cursor surface
|
|
*
|
|
* @param plane_state DRM cursor plane state
|
|
* @param ev Source view for cursor
|
|
*/
|
|
static void
|
|
cursor_bo_update(struct drm_plane_state *plane_state, struct weston_view *ev)
|
|
{
|
|
struct drm_backend *b = plane_state->plane->backend;
|
|
struct gbm_bo *bo = plane_state->fb->bo;
|
|
struct weston_buffer *buffer = ev->surface->buffer_ref.buffer;
|
|
uint32_t buf[b->cursor_width * b->cursor_height];
|
|
int32_t stride;
|
|
uint8_t *s;
|
|
int i;
|
|
|
|
assert(buffer && buffer->shm_buffer);
|
|
assert(buffer->shm_buffer == wl_shm_buffer_get(buffer->resource));
|
|
assert(buffer->width <= b->cursor_width);
|
|
assert(buffer->height <= b->cursor_height);
|
|
|
|
memset(buf, 0, sizeof buf);
|
|
stride = wl_shm_buffer_get_stride(buffer->shm_buffer);
|
|
s = wl_shm_buffer_get_data(buffer->shm_buffer);
|
|
|
|
wl_shm_buffer_begin_access(buffer->shm_buffer);
|
|
for (i = 0; i < buffer->height; i++)
|
|
memcpy(buf + i * b->cursor_width,
|
|
s + i * stride,
|
|
buffer->width * 4);
|
|
wl_shm_buffer_end_access(buffer->shm_buffer);
|
|
|
|
if (gbm_bo_write(bo, buf, sizeof buf) < 0)
|
|
weston_log("failed update cursor: %m\n");
|
|
}
|
|
|
|
static struct drm_plane_state *
|
|
drm_output_prepare_cursor_view(struct drm_output_state *output_state,
|
|
struct weston_view *ev)
|
|
{
|
|
struct drm_output *output = output_state->output;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct drm_plane *plane = output->cursor_plane;
|
|
struct drm_plane_state *plane_state;
|
|
struct wl_shm_buffer *shmbuf;
|
|
bool needs_update = false;
|
|
|
|
assert(!b->cursors_are_broken);
|
|
|
|
if (!plane)
|
|
return NULL;
|
|
|
|
if (!plane->state_cur->complete)
|
|
return NULL;
|
|
|
|
if (plane->state_cur->output && plane->state_cur->output != output)
|
|
return NULL;
|
|
|
|
/* We use GBM to import SHM buffers. */
|
|
if (b->gbm == NULL)
|
|
return NULL;
|
|
|
|
if (ev->surface->buffer_ref.buffer == NULL) {
|
|
drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
|
|
"(no buffer available)\n", ev);
|
|
return NULL;
|
|
}
|
|
shmbuf = wl_shm_buffer_get(ev->surface->buffer_ref.buffer->resource);
|
|
if (!shmbuf) {
|
|
drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
|
|
"(buffer isn't SHM)\n", ev);
|
|
return NULL;
|
|
}
|
|
if (wl_shm_buffer_get_format(shmbuf) != WL_SHM_FORMAT_ARGB8888) {
|
|
drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
|
|
"(format 0x%lx unsuitable)\n",
|
|
ev, (unsigned long) wl_shm_buffer_get_format(shmbuf));
|
|
return NULL;
|
|
}
|
|
|
|
plane_state =
|
|
drm_output_state_get_plane(output_state, output->cursor_plane);
|
|
|
|
if (plane_state && plane_state->fb)
|
|
return NULL;
|
|
|
|
/* We can't scale with the legacy API, and we don't try to account for
|
|
* simple cropping/translation in cursor_bo_update. */
|
|
plane_state->output = output;
|
|
if (!drm_plane_state_coords_for_view(plane_state, ev))
|
|
goto err;
|
|
|
|
if (plane_state->src_x != 0 || plane_state->src_y != 0 ||
|
|
plane_state->src_w > (unsigned) b->cursor_width << 16 ||
|
|
plane_state->src_h > (unsigned) b->cursor_height << 16 ||
|
|
plane_state->src_w != plane_state->dest_w << 16 ||
|
|
plane_state->src_h != plane_state->dest_h << 16) {
|
|
drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
|
|
"(positioning requires cropping or scaling)\n", ev);
|
|
goto err;
|
|
}
|
|
|
|
/* Since we're setting plane state up front, we need to work out
|
|
* whether or not we need to upload a new cursor. We can't use the
|
|
* plane damage, since the planes haven't actually been calculated
|
|
* yet: instead try to figure it out directly. KMS cursor planes are
|
|
* pretty unique here, in that they lie partway between a Weston plane
|
|
* (direct scanout) and a renderer. */
|
|
if (ev != output->cursor_view ||
|
|
pixman_region32_not_empty(&ev->surface->damage)) {
|
|
output->current_cursor++;
|
|
output->current_cursor =
|
|
output->current_cursor %
|
|
ARRAY_LENGTH(output->gbm_cursor_fb);
|
|
needs_update = true;
|
|
}
|
|
|
|
output->cursor_view = ev;
|
|
plane_state->ev = ev;
|
|
|
|
plane_state->fb =
|
|
drm_fb_ref(output->gbm_cursor_fb[output->current_cursor]);
|
|
|
|
if (needs_update) {
|
|
drm_debug(b, "\t\t\t\t[cursor] copying new content to cursor BO\n");
|
|
cursor_bo_update(plane_state, ev);
|
|
}
|
|
|
|
/* The cursor API is somewhat special: in cursor_bo_update(), we upload
|
|
* a buffer which is always cursor_width x cursor_height, even if the
|
|
* surface we want to promote is actually smaller than this. Manually
|
|
* mangle the plane state to deal with this. */
|
|
plane_state->src_w = b->cursor_width << 16;
|
|
plane_state->src_h = b->cursor_height << 16;
|
|
plane_state->dest_w = b->cursor_width;
|
|
plane_state->dest_h = b->cursor_height;
|
|
|
|
drm_debug(b, "\t\t\t\t[cursor] provisionally assigned view %p to cursor\n",
|
|
ev);
|
|
|
|
return plane_state;
|
|
|
|
err:
|
|
drm_plane_state_put_back(plane_state);
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
drm_output_set_cursor(struct drm_output_state *output_state)
|
|
{
|
|
struct drm_output *output = output_state->output;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct drm_plane *plane = output->cursor_plane;
|
|
struct drm_plane_state *state;
|
|
EGLint handle;
|
|
struct gbm_bo *bo;
|
|
|
|
if (!plane)
|
|
return;
|
|
|
|
state = drm_output_state_get_existing_plane(output_state, plane);
|
|
if (!state)
|
|
return;
|
|
|
|
if (!state->fb) {
|
|
pixman_region32_fini(&plane->base.damage);
|
|
pixman_region32_init(&plane->base.damage);
|
|
drmModeSetCursor(b->drm.fd, output->crtc_id, 0, 0, 0);
|
|
return;
|
|
}
|
|
|
|
assert(state->fb == output->gbm_cursor_fb[output->current_cursor]);
|
|
assert(!plane->state_cur->output || plane->state_cur->output == output);
|
|
|
|
if (plane->state_cur->fb != state->fb) {
|
|
bo = state->fb->bo;
|
|
handle = gbm_bo_get_handle(bo).s32;
|
|
if (drmModeSetCursor(b->drm.fd, output->crtc_id, handle,
|
|
b->cursor_width, b->cursor_height)) {
|
|
weston_log("failed to set cursor: %m\n");
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
pixman_region32_fini(&plane->base.damage);
|
|
pixman_region32_init(&plane->base.damage);
|
|
|
|
if (drmModeMoveCursor(b->drm.fd, output->crtc_id,
|
|
state->dest_x, state->dest_y)) {
|
|
weston_log("failed to move cursor: %m\n");
|
|
goto err;
|
|
}
|
|
|
|
return;
|
|
|
|
err:
|
|
b->cursors_are_broken = 1;
|
|
drmModeSetCursor(b->drm.fd, output->crtc_id, 0, 0, 0);
|
|
}
|
|
|
|
static struct drm_output_state *
|
|
drm_output_propose_state(struct weston_output *output_base,
|
|
struct drm_pending_state *pending_state,
|
|
enum drm_output_propose_state_mode mode)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct drm_output_state *state;
|
|
struct drm_plane_state *scanout_state = NULL;
|
|
struct weston_view *ev;
|
|
pixman_region32_t surface_overlap, renderer_region, occluded_region;
|
|
bool planes_ok = (mode != DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY);
|
|
bool renderer_ok = (mode != DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY);
|
|
int ret;
|
|
|
|
assert(!output->state_last);
|
|
state = drm_output_state_duplicate(output->state_cur,
|
|
pending_state,
|
|
DRM_OUTPUT_STATE_CLEAR_PLANES);
|
|
|
|
/* We implement mixed mode by progressively creating and testing
|
|
* incremental states, of scanout + overlay + cursor. Since we
|
|
* walk our views top to bottom, the scanout plane is last, however
|
|
* we always need it in our scene for the test modeset to be
|
|
* meaningful. To do this, we steal a reference to the last
|
|
* renderer framebuffer we have, if we think it's basically
|
|
* compatible. If we don't have that, then we conservatively fall
|
|
* back to only using the renderer for this repaint. */
|
|
if (mode == DRM_OUTPUT_PROPOSE_STATE_MIXED) {
|
|
struct drm_plane *plane = output->scanout_plane;
|
|
struct drm_fb *scanout_fb = plane->state_cur->fb;
|
|
|
|
if (!scanout_fb ||
|
|
(scanout_fb->type != BUFFER_GBM_SURFACE &&
|
|
scanout_fb->type != BUFFER_PIXMAN_DUMB)) {
|
|
drm_debug(b, "\t\t[state] cannot propose mixed mode: "
|
|
"for output %s (%lu): no previous renderer "
|
|
"fb\n",
|
|
output->base.name,
|
|
(unsigned long) output->base.id);
|
|
drm_output_state_free(state);
|
|
return NULL;
|
|
}
|
|
|
|
if (scanout_fb->width != output_base->current_mode->width ||
|
|
scanout_fb->height != output_base->current_mode->height) {
|
|
drm_debug(b, "\t\t[state] cannot propose mixed mode "
|
|
"for output %s (%lu): previous fb has "
|
|
"different size\n",
|
|
output->base.name,
|
|
(unsigned long) output->base.id);
|
|
drm_output_state_free(state);
|
|
return NULL;
|
|
}
|
|
|
|
scanout_state = drm_plane_state_duplicate(state,
|
|
plane->state_cur);
|
|
drm_debug(b, "\t\t[state] using renderer FB ID %lu for mixed "
|
|
"mode for output %s (%lu)\n",
|
|
(unsigned long) scanout_fb->fb_id, output->base.name,
|
|
(unsigned long) output->base.id);
|
|
}
|
|
|
|
/*
|
|
* Find a surface for each sprite in the output using some heuristics:
|
|
* 1) size
|
|
* 2) frequency of update
|
|
* 3) opacity (though some hw might support alpha blending)
|
|
* 4) clipping (this can be fixed with color keys)
|
|
*
|
|
* The idea is to save on blitting since this should save power.
|
|
* If we can get a large video surface on the sprite for example,
|
|
* the main display surface may not need to update at all, and
|
|
* the client buffer can be used directly for the sprite surface
|
|
* as we do for flipping full screen surfaces.
|
|
*/
|
|
pixman_region32_init(&renderer_region);
|
|
pixman_region32_init(&occluded_region);
|
|
|
|
wl_list_for_each(ev, &output_base->compositor->view_list, link) {
|
|
struct drm_plane_state *ps = NULL;
|
|
bool force_renderer = false;
|
|
pixman_region32_t clipped_view;
|
|
bool totally_occluded = false;
|
|
bool overlay_occluded = false;
|
|
|
|
drm_debug(b, "\t\t\t[view] evaluating view %p for "
|
|
"output %s (%lu)\n",
|
|
ev, output->base.name,
|
|
(unsigned long) output->base.id);
|
|
|
|
/* If this view doesn't touch our output at all, there's no
|
|
* reason to do anything with it. */
|
|
if (!(ev->output_mask & (1u << output->base.id))) {
|
|
drm_debug(b, "\t\t\t\t[view] ignoring view %p "
|
|
"(not on our output)\n", ev);
|
|
continue;
|
|
}
|
|
|
|
/* We only assign planes to views which are exclusively present
|
|
* on our output. */
|
|
if (ev->output_mask != (1u << output->base.id)) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(on multiple outputs)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
if (!ev->surface->buffer_ref.buffer) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(no buffer available)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
/* Ignore views we know to be totally occluded. */
|
|
pixman_region32_init(&clipped_view);
|
|
pixman_region32_intersect(&clipped_view,
|
|
&ev->transform.boundingbox,
|
|
&output->base.region);
|
|
|
|
pixman_region32_init(&surface_overlap);
|
|
pixman_region32_subtract(&surface_overlap, &clipped_view,
|
|
&occluded_region);
|
|
totally_occluded = !pixman_region32_not_empty(&surface_overlap);
|
|
if (totally_occluded) {
|
|
drm_debug(b, "\t\t\t\t[view] ignoring view %p "
|
|
"(occluded on our output)\n", ev);
|
|
pixman_region32_fini(&surface_overlap);
|
|
pixman_region32_fini(&clipped_view);
|
|
continue;
|
|
}
|
|
|
|
/* Since we process views from top to bottom, we know that if
|
|
* the view intersects the calculated renderer region, it must
|
|
* be part of, or occluded by, it, and cannot go on a plane. */
|
|
pixman_region32_intersect(&surface_overlap, &renderer_region,
|
|
&clipped_view);
|
|
if (pixman_region32_not_empty(&surface_overlap)) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(occluded by renderer views)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
/* We do not control the stacking order of overlay planes;
|
|
* the scanout plane is strictly stacked bottom and the cursor
|
|
* plane top, but the ordering of overlay planes with respect
|
|
* to each other is undefined. Make sure we do not have two
|
|
* planes overlapping each other. */
|
|
pixman_region32_intersect(&surface_overlap, &occluded_region,
|
|
&clipped_view);
|
|
if (pixman_region32_not_empty(&surface_overlap)) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(occluded by other overlay planes)\n", ev);
|
|
overlay_occluded = true;
|
|
}
|
|
pixman_region32_fini(&surface_overlap);
|
|
|
|
/* The cursor plane is 'special' in the sense that we can still
|
|
* place it in the legacy API, and we gate that with a separate
|
|
* cursors_are_broken flag. */
|
|
if (!force_renderer && !overlay_occluded && !b->cursors_are_broken)
|
|
ps = drm_output_prepare_cursor_view(state, ev);
|
|
|
|
/* If sprites are disabled or the view is not fully opaque, we
|
|
* must put the view into the renderer - unless it has already
|
|
* been placed in the cursor plane, which can handle alpha. */
|
|
if (!ps && !planes_ok) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(precluded by mode)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
if (!ps && !weston_view_is_opaque(ev, &clipped_view)) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(view not fully opaque)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
/* Only try to place scanout surfaces in planes-only mode; in
|
|
* mixed mode, we have already failed to place a view on the
|
|
* scanout surface, forcing usage of the renderer on the
|
|
* scanout plane. */
|
|
if (!ps && !force_renderer && !renderer_ok)
|
|
ps = drm_output_prepare_scanout_view(state, ev, mode);
|
|
|
|
if (!ps && !overlay_occluded && !force_renderer)
|
|
ps = drm_output_prepare_overlay_view(state, ev, mode);
|
|
|
|
if (ps) {
|
|
/* If we have been assigned to an overlay or scanout
|
|
* plane, add this area to the occluded region, so
|
|
* other views are known to be behind it. The cursor
|
|
* plane, however, is special, in that it blends with
|
|
* the content underneath it: the area should neither
|
|
* be added to the renderer region nor the occluded
|
|
* region. */
|
|
if (ps->plane->type != WDRM_PLANE_TYPE_CURSOR) {
|
|
pixman_region32_union(&occluded_region,
|
|
&occluded_region,
|
|
&clipped_view);
|
|
pixman_region32_fini(&clipped_view);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/* We have been assigned to the primary (renderer) plane:
|
|
* check if this is OK, and add ourselves to the renderer
|
|
* region if so. */
|
|
if (!renderer_ok) {
|
|
drm_debug(b, "\t\t[view] failing state generation: "
|
|
"placing view %p to renderer not allowed\n",
|
|
ev);
|
|
pixman_region32_fini(&clipped_view);
|
|
goto err_region;
|
|
}
|
|
|
|
pixman_region32_union(&renderer_region,
|
|
&renderer_region,
|
|
&clipped_view);
|
|
pixman_region32_fini(&clipped_view);
|
|
}
|
|
pixman_region32_fini(&renderer_region);
|
|
pixman_region32_fini(&occluded_region);
|
|
|
|
/* In renderer-only mode, we can't test the state as we don't have a
|
|
* renderer buffer yet. */
|
|
if (mode == DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY)
|
|
return state;
|
|
|
|
/* Check to see if this state will actually work. */
|
|
ret = drm_pending_state_test(state->pending_state);
|
|
if (ret != 0) {
|
|
drm_debug(b, "\t\t[view] failing state generation: "
|
|
"atomic test not OK\n");
|
|
goto err;
|
|
}
|
|
|
|
/* Counterpart to duplicating scanout state at the top of this
|
|
* function: if we have taken a renderer framebuffer and placed it in
|
|
* the pending state in order to incrementally test overlay planes,
|
|
* remove it now. */
|
|
if (mode == DRM_OUTPUT_PROPOSE_STATE_MIXED) {
|
|
assert(scanout_state->fb->type == BUFFER_GBM_SURFACE ||
|
|
scanout_state->fb->type == BUFFER_PIXMAN_DUMB);
|
|
drm_plane_state_put_back(scanout_state);
|
|
}
|
|
return state;
|
|
|
|
err_region:
|
|
pixman_region32_fini(&renderer_region);
|
|
pixman_region32_fini(&occluded_region);
|
|
err:
|
|
drm_output_state_free(state);
|
|
return NULL;
|
|
}
|
|
|
|
static const char *
|
|
drm_propose_state_mode_to_string(enum drm_output_propose_state_mode mode)
|
|
{
|
|
if (mode < 0 || mode >= ARRAY_LENGTH(drm_output_propose_state_mode_as_string))
|
|
return " unknown compositing mode";
|
|
|
|
return drm_output_propose_state_mode_as_string[mode];
|
|
}
|
|
|
|
static void
|
|
drm_assign_planes(struct weston_output *output_base, void *repaint_data)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_output_state *state = NULL;
|
|
struct drm_plane_state *plane_state;
|
|
struct weston_view *ev;
|
|
struct weston_plane *primary = &output_base->compositor->primary_plane;
|
|
enum drm_output_propose_state_mode mode = DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY;
|
|
|
|
drm_debug(b, "\t[repaint] preparing state for output %s (%lu)\n",
|
|
output_base->name, (unsigned long) output_base->id);
|
|
|
|
if (!b->sprites_are_broken && !output->virtual) {
|
|
drm_debug(b, "\t[repaint] trying planes-only build state\n");
|
|
state = drm_output_propose_state(output_base, pending_state, mode);
|
|
if (!state) {
|
|
drm_debug(b, "\t[repaint] could not build planes-only "
|
|
"state, trying mixed\n");
|
|
mode = DRM_OUTPUT_PROPOSE_STATE_MIXED;
|
|
state = drm_output_propose_state(output_base,
|
|
pending_state,
|
|
mode);
|
|
}
|
|
if (!state) {
|
|
drm_debug(b, "\t[repaint] could not build mixed-mode "
|
|
"state, trying renderer-only\n");
|
|
}
|
|
} else {
|
|
drm_debug(b, "\t[state] no overlay plane support\n");
|
|
}
|
|
|
|
if (!state) {
|
|
mode = DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY;
|
|
state = drm_output_propose_state(output_base, pending_state,
|
|
mode);
|
|
}
|
|
|
|
assert(state);
|
|
drm_debug(b, "\t[repaint] Using %s composition\n",
|
|
drm_propose_state_mode_to_string(mode));
|
|
|
|
wl_list_for_each(ev, &output_base->compositor->view_list, link) {
|
|
struct drm_plane *target_plane = NULL;
|
|
|
|
/* If this view doesn't touch our output at all, there's no
|
|
* reason to do anything with it. */
|
|
if (!(ev->output_mask & (1u << output->base.id)))
|
|
continue;
|
|
|
|
/* Test whether this buffer can ever go into a plane:
|
|
* non-shm, or small enough to be a cursor.
|
|
*
|
|
* Also, keep a reference when using the pixman renderer.
|
|
* That makes it possible to do a seamless switch to the GL
|
|
* renderer and since the pixman renderer keeps a reference
|
|
* to the buffer anyway, there is no side effects.
|
|
*/
|
|
if (b->use_pixman ||
|
|
(ev->surface->buffer_ref.buffer &&
|
|
(!wl_shm_buffer_get(ev->surface->buffer_ref.buffer->resource) ||
|
|
(ev->surface->width <= b->cursor_width &&
|
|
ev->surface->height <= b->cursor_height))))
|
|
ev->surface->keep_buffer = true;
|
|
else
|
|
ev->surface->keep_buffer = false;
|
|
|
|
/* This is a bit unpleasant, but lacking a temporary place to
|
|
* hang a plane off the view, we have to do a nested walk.
|
|
* Our first-order iteration has to be planes rather than
|
|
* views, because otherwise we won't reset views which were
|
|
* previously on planes to being on the primary plane. */
|
|
wl_list_for_each(plane_state, &state->plane_list, link) {
|
|
if (plane_state->ev == ev) {
|
|
plane_state->ev = NULL;
|
|
target_plane = plane_state->plane;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (target_plane) {
|
|
drm_debug(b, "\t[repaint] view %p on %s plane %lu\n",
|
|
ev, plane_type_enums[target_plane->type].name,
|
|
(unsigned long) target_plane->plane_id);
|
|
weston_view_move_to_plane(ev, &target_plane->base);
|
|
} else {
|
|
drm_debug(b, "\t[repaint] view %p using renderer "
|
|
"composition\n", ev);
|
|
weston_view_move_to_plane(ev, primary);
|
|
}
|
|
|
|
if (!target_plane ||
|
|
target_plane->type == WDRM_PLANE_TYPE_CURSOR) {
|
|
/* cursor plane & renderer involve a copy */
|
|
ev->psf_flags = 0;
|
|
} else {
|
|
/* All other planes are a direct scanout of a
|
|
* single client buffer.
|
|
*/
|
|
ev->psf_flags = WP_PRESENTATION_FEEDBACK_KIND_ZERO_COPY;
|
|
}
|
|
}
|
|
|
|
/* We rely on output->cursor_view being both an accurate reflection of
|
|
* the cursor plane's state, but also being maintained across repaints
|
|
* to avoid unnecessary damage uploads, per the comment in
|
|
* drm_output_prepare_cursor_view. In the event that we go from having
|
|
* a cursor view to not having a cursor view, we need to clear it. */
|
|
if (output->cursor_view) {
|
|
plane_state =
|
|
drm_output_state_get_existing_plane(state,
|
|
output->cursor_plane);
|
|
if (!plane_state || !plane_state->fb)
|
|
output->cursor_view = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Get the aspect-ratio from drmModeModeInfo mode flags.
|
|
*
|
|
* @param drm_mode_flags- flags from drmModeModeInfo structure.
|
|
* @returns aspect-ratio as encoded in enum 'weston_mode_aspect_ratio'.
|
|
*/
|
|
static enum weston_mode_aspect_ratio
|
|
drm_to_weston_mode_aspect_ratio(uint32_t drm_mode_flags)
|
|
{
|
|
return (drm_mode_flags & DRM_MODE_FLAG_PIC_AR_MASK) >>
|
|
DRM_MODE_FLAG_PIC_AR_BITS_POS;
|
|
}
|
|
|
|
static const char *
|
|
aspect_ratio_to_string(enum weston_mode_aspect_ratio ratio)
|
|
{
|
|
if (ratio < 0 || ratio >= ARRAY_LENGTH(aspect_ratio_as_string) ||
|
|
!aspect_ratio_as_string[ratio])
|
|
return " (unknown aspect ratio)";
|
|
|
|
return aspect_ratio_as_string[ratio];
|
|
}
|
|
|
|
/**
|
|
* Find the closest-matching mode for a given target
|
|
*
|
|
* Given a target mode, find the most suitable mode amongst the output's
|
|
* current mode list to use, preferring the current mode if possible, to
|
|
* avoid an expensive mode switch.
|
|
*
|
|
* @param output DRM output
|
|
* @param target_mode Mode to attempt to match
|
|
* @returns Pointer to a mode from the output's mode list
|
|
*/
|
|
static struct drm_mode *
|
|
choose_mode (struct drm_output *output, struct weston_mode *target_mode)
|
|
{
|
|
struct drm_mode *tmp_mode = NULL, *mode_fall_back = NULL, *mode;
|
|
enum weston_mode_aspect_ratio src_aspect = WESTON_MODE_PIC_AR_NONE;
|
|
enum weston_mode_aspect_ratio target_aspect = WESTON_MODE_PIC_AR_NONE;
|
|
struct drm_backend *b;
|
|
|
|
b = to_drm_backend(output->base.compositor);
|
|
target_aspect = target_mode->aspect_ratio;
|
|
src_aspect = output->base.current_mode->aspect_ratio;
|
|
if (output->base.current_mode->width == target_mode->width &&
|
|
output->base.current_mode->height == target_mode->height &&
|
|
(output->base.current_mode->refresh == target_mode->refresh ||
|
|
target_mode->refresh == 0)) {
|
|
if (!b->aspect_ratio_supported || src_aspect == target_aspect)
|
|
return to_drm_mode(output->base.current_mode);
|
|
}
|
|
|
|
wl_list_for_each(mode, &output->base.mode_list, base.link) {
|
|
|
|
src_aspect = mode->base.aspect_ratio;
|
|
if (mode->mode_info.hdisplay == target_mode->width &&
|
|
mode->mode_info.vdisplay == target_mode->height) {
|
|
if (mode->base.refresh == target_mode->refresh ||
|
|
target_mode->refresh == 0) {
|
|
if (!b->aspect_ratio_supported ||
|
|
src_aspect == target_aspect)
|
|
return mode;
|
|
else if (!mode_fall_back)
|
|
mode_fall_back = mode;
|
|
} else if (!tmp_mode) {
|
|
tmp_mode = mode;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mode_fall_back)
|
|
return mode_fall_back;
|
|
|
|
return tmp_mode;
|
|
}
|
|
|
|
static int
|
|
drm_output_init_egl(struct drm_output *output, struct drm_backend *b);
|
|
static void
|
|
drm_output_fini_egl(struct drm_output *output);
|
|
static int
|
|
drm_output_init_pixman(struct drm_output *output, struct drm_backend *b);
|
|
static void
|
|
drm_output_fini_pixman(struct drm_output *output);
|
|
|
|
static int
|
|
drm_output_switch_mode(struct weston_output *output_base, struct weston_mode *mode)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
struct drm_mode *drm_mode = choose_mode(output, mode);
|
|
|
|
if (!drm_mode) {
|
|
weston_log("%s: invalid resolution %dx%d\n",
|
|
output_base->name, mode->width, mode->height);
|
|
return -1;
|
|
}
|
|
|
|
if (&drm_mode->base == output->base.current_mode)
|
|
return 0;
|
|
|
|
output->base.current_mode->flags = 0;
|
|
|
|
output->base.current_mode = &drm_mode->base;
|
|
output->base.current_mode->flags =
|
|
WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
|
|
|
|
/* XXX: This drops our current buffer too early, before we've started
|
|
* displaying it. Ideally this should be much more atomic and
|
|
* integrated with a full repaint cycle, rather than doing a
|
|
* sledgehammer modeswitch first, and only later showing new
|
|
* content.
|
|
*/
|
|
b->state_invalid = true;
|
|
|
|
if (b->use_pixman) {
|
|
drm_output_fini_pixman(output);
|
|
if (drm_output_init_pixman(output, b) < 0) {
|
|
weston_log("failed to init output pixman state with "
|
|
"new mode\n");
|
|
return -1;
|
|
}
|
|
} else {
|
|
drm_output_fini_egl(output);
|
|
if (drm_output_init_egl(output, b) < 0) {
|
|
weston_log("failed to init output egl state with "
|
|
"new mode");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
on_drm_input(int fd, uint32_t mask, void *data)
|
|
{
|
|
#ifdef HAVE_DRM_ATOMIC
|
|
struct drm_backend *b = data;
|
|
#endif
|
|
drmEventContext evctx;
|
|
|
|
memset(&evctx, 0, sizeof evctx);
|
|
#ifndef HAVE_DRM_ATOMIC
|
|
evctx.version = 2;
|
|
#else
|
|
evctx.version = 3;
|
|
if (b->atomic_modeset)
|
|
evctx.page_flip_handler2 = atomic_flip_handler;
|
|
else
|
|
#endif
|
|
evctx.page_flip_handler = page_flip_handler;
|
|
evctx.vblank_handler = vblank_handler;
|
|
drmHandleEvent(fd, &evctx);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
init_kms_caps(struct drm_backend *b)
|
|
{
|
|
uint64_t cap;
|
|
int ret;
|
|
clockid_t clk_id;
|
|
|
|
weston_log("using %s\n", b->drm.filename);
|
|
|
|
ret = drmGetCap(b->drm.fd, DRM_CAP_TIMESTAMP_MONOTONIC, &cap);
|
|
if (ret == 0 && cap == 1)
|
|
clk_id = CLOCK_MONOTONIC;
|
|
else
|
|
clk_id = CLOCK_REALTIME;
|
|
|
|
if (weston_compositor_set_presentation_clock(b->compositor, clk_id) < 0) {
|
|
weston_log("Error: failed to set presentation clock %d.\n",
|
|
clk_id);
|
|
return -1;
|
|
}
|
|
|
|
ret = drmGetCap(b->drm.fd, DRM_CAP_CURSOR_WIDTH, &cap);
|
|
if (ret == 0)
|
|
b->cursor_width = cap;
|
|
else
|
|
b->cursor_width = 64;
|
|
|
|
ret = drmGetCap(b->drm.fd, DRM_CAP_CURSOR_HEIGHT, &cap);
|
|
if (ret == 0)
|
|
b->cursor_height = cap;
|
|
else
|
|
b->cursor_height = 64;
|
|
|
|
if (!getenv("WESTON_DISABLE_UNIVERSAL_PLANES")) {
|
|
ret = drmSetClientCap(b->drm.fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
|
|
b->universal_planes = (ret == 0);
|
|
}
|
|
weston_log("DRM: %s universal planes\n",
|
|
b->universal_planes ? "supports" : "does not support");
|
|
|
|
#ifdef HAVE_DRM_ATOMIC
|
|
if (b->universal_planes && !getenv("WESTON_DISABLE_ATOMIC")) {
|
|
ret = drmGetCap(b->drm.fd, DRM_CAP_CRTC_IN_VBLANK_EVENT, &cap);
|
|
if (ret != 0)
|
|
cap = 0;
|
|
ret = drmSetClientCap(b->drm.fd, DRM_CLIENT_CAP_ATOMIC, 1);
|
|
b->atomic_modeset = ((ret == 0) && (cap == 1));
|
|
}
|
|
#endif
|
|
weston_log("DRM: %s atomic modesetting\n",
|
|
b->atomic_modeset ? "supports" : "does not support");
|
|
|
|
#ifdef HAVE_DRM_ADDFB2_MODIFIERS
|
|
ret = drmGetCap(b->drm.fd, DRM_CAP_ADDFB2_MODIFIERS, &cap);
|
|
if (ret == 0)
|
|
b->fb_modifiers = cap;
|
|
else
|
|
#endif
|
|
b->fb_modifiers = 0;
|
|
|
|
/*
|
|
* KMS support for hardware planes cannot properly synchronize
|
|
* without nuclear page flip. Without nuclear/atomic, hw plane
|
|
* and cursor plane updates would either tear or cause extra
|
|
* waits for vblanks which means dropping the compositor framerate
|
|
* to a fraction. For cursors, it's not so bad, so they are
|
|
* enabled.
|
|
*/
|
|
if (!b->atomic_modeset || getenv("WESTON_FORCE_RENDERER"))
|
|
b->sprites_are_broken = 1;
|
|
|
|
ret = drmSetClientCap(b->drm.fd, DRM_CLIENT_CAP_ASPECT_RATIO, 1);
|
|
b->aspect_ratio_supported = (ret == 0);
|
|
weston_log("DRM: %s picture aspect ratio\n",
|
|
b->aspect_ratio_supported ? "supports" : "does not support");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct gbm_device *
|
|
create_gbm_device(int fd)
|
|
{
|
|
struct gbm_device *gbm;
|
|
|
|
gl_renderer = weston_load_module("gl-renderer.so",
|
|
"gl_renderer_interface");
|
|
if (!gl_renderer)
|
|
return NULL;
|
|
|
|
/* GBM will load a dri driver, but even though they need symbols from
|
|
* libglapi, in some version of Mesa they are not linked to it. Since
|
|
* only the gl-renderer module links to it, the call above won't make
|
|
* these symbols globally available, and loading the DRI driver fails.
|
|
* Workaround this by dlopen()'ing libglapi with RTLD_GLOBAL. */
|
|
dlopen("libglapi.so.0", RTLD_LAZY | RTLD_GLOBAL);
|
|
|
|
gbm = gbm_create_device(fd);
|
|
|
|
return gbm;
|
|
}
|
|
|
|
/* When initializing EGL, if the preferred buffer format isn't available
|
|
* we may be able to substitute an ARGB format for an XRGB one.
|
|
*
|
|
* This returns 0 if substitution isn't possible, but 0 might be a
|
|
* legitimate format for other EGL platforms, so the caller is
|
|
* responsible for checking for 0 before calling gl_renderer->create().
|
|
*
|
|
* This works around https://bugs.freedesktop.org/show_bug.cgi?id=89689
|
|
* but it's entirely possible we'll see this again on other implementations.
|
|
*/
|
|
static int
|
|
fallback_format_for(uint32_t format)
|
|
{
|
|
switch (format) {
|
|
case GBM_FORMAT_XRGB8888:
|
|
return GBM_FORMAT_ARGB8888;
|
|
case GBM_FORMAT_XRGB2101010:
|
|
return GBM_FORMAT_ARGB2101010;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int
|
|
drm_backend_create_gl_renderer(struct drm_backend *b)
|
|
{
|
|
EGLint format[3] = {
|
|
b->gbm_format,
|
|
fallback_format_for(b->gbm_format),
|
|
0,
|
|
};
|
|
int n_formats = 2;
|
|
|
|
if (format[1])
|
|
n_formats = 3;
|
|
if (gl_renderer->display_create(b->compositor,
|
|
EGL_PLATFORM_GBM_KHR,
|
|
(void *)b->gbm,
|
|
NULL,
|
|
gl_renderer->opaque_attribs,
|
|
format,
|
|
n_formats) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
init_egl(struct drm_backend *b)
|
|
{
|
|
b->gbm = create_gbm_device(b->drm.fd);
|
|
|
|
if (!b->gbm)
|
|
return -1;
|
|
|
|
if (drm_backend_create_gl_renderer(b) < 0) {
|
|
gbm_device_destroy(b->gbm);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
init_pixman(struct drm_backend *b)
|
|
{
|
|
return pixman_renderer_init(b->compositor);
|
|
}
|
|
|
|
#ifdef HAVE_DRM_FORMATS_BLOB
|
|
static inline uint32_t *
|
|
formats_ptr(struct drm_format_modifier_blob *blob)
|
|
{
|
|
return (uint32_t *)(((char *)blob) + blob->formats_offset);
|
|
}
|
|
|
|
static inline struct drm_format_modifier *
|
|
modifiers_ptr(struct drm_format_modifier_blob *blob)
|
|
{
|
|
return (struct drm_format_modifier *)
|
|
(((char *)blob) + blob->modifiers_offset);
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* Populates the plane's formats array, using either the IN_FORMATS blob
|
|
* property (if available), or the plane's format list if not.
|
|
*/
|
|
static int
|
|
drm_plane_populate_formats(struct drm_plane *plane, const drmModePlane *kplane,
|
|
const drmModeObjectProperties *props)
|
|
{
|
|
unsigned i;
|
|
#ifdef HAVE_DRM_FORMATS_BLOB
|
|
drmModePropertyBlobRes *blob;
|
|
struct drm_format_modifier_blob *fmt_mod_blob;
|
|
struct drm_format_modifier *blob_modifiers;
|
|
uint32_t *blob_formats;
|
|
uint32_t blob_id;
|
|
|
|
blob_id = drm_property_get_value(&plane->props[WDRM_PLANE_IN_FORMATS],
|
|
props,
|
|
0);
|
|
if (blob_id == 0)
|
|
goto fallback;
|
|
|
|
blob = drmModeGetPropertyBlob(plane->backend->drm.fd, blob_id);
|
|
if (!blob)
|
|
goto fallback;
|
|
|
|
fmt_mod_blob = blob->data;
|
|
blob_formats = formats_ptr(fmt_mod_blob);
|
|
blob_modifiers = modifiers_ptr(fmt_mod_blob);
|
|
|
|
if (plane->count_formats != fmt_mod_blob->count_formats) {
|
|
weston_log("DRM backend: format count differs between "
|
|
"plane (%d) and IN_FORMATS (%d)\n",
|
|
plane->count_formats,
|
|
fmt_mod_blob->count_formats);
|
|
weston_log("This represents a kernel bug; Weston is "
|
|
"unable to continue.\n");
|
|
abort();
|
|
}
|
|
|
|
for (i = 0; i < fmt_mod_blob->count_formats; i++) {
|
|
uint32_t count_modifiers = 0;
|
|
uint64_t *modifiers = NULL;
|
|
unsigned j;
|
|
|
|
for (j = 0; j < fmt_mod_blob->count_modifiers; j++) {
|
|
struct drm_format_modifier *mod = &blob_modifiers[j];
|
|
|
|
if ((i < mod->offset) || (i > mod->offset + 63))
|
|
continue;
|
|
if (!(mod->formats & (1 << (i - mod->offset))))
|
|
continue;
|
|
|
|
modifiers = realloc(modifiers,
|
|
(count_modifiers + 1) *
|
|
sizeof(modifiers[0]));
|
|
assert(modifiers);
|
|
modifiers[count_modifiers++] = mod->modifier;
|
|
}
|
|
|
|
plane->formats[i].format = blob_formats[i];
|
|
plane->formats[i].modifiers = modifiers;
|
|
plane->formats[i].count_modifiers = count_modifiers;
|
|
}
|
|
|
|
drmModeFreePropertyBlob(blob);
|
|
|
|
return 0;
|
|
|
|
fallback:
|
|
#endif
|
|
/* No IN_FORMATS blob available, so just use the old. */
|
|
assert(plane->count_formats == kplane->count_formats);
|
|
for (i = 0; i < kplane->count_formats; i++)
|
|
plane->formats[i].format = kplane->formats[i];
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Create a drm_plane for a hardware plane
|
|
*
|
|
* Creates one drm_plane structure for a hardware plane, and initialises its
|
|
* properties and formats.
|
|
*
|
|
* In the absence of universal plane support, where KMS does not explicitly
|
|
* expose the primary and cursor planes to userspace, this may also create
|
|
* an 'internal' plane for internal management.
|
|
*
|
|
* This function does not add the plane to the list of usable planes in Weston
|
|
* itself; the caller is responsible for this.
|
|
*
|
|
* Call drm_plane_destroy to clean up the plane.
|
|
*
|
|
* @sa drm_output_find_special_plane
|
|
* @param b DRM compositor backend
|
|
* @param kplane DRM plane to create, or NULL if creating internal plane
|
|
* @param output Output to create internal plane for, or NULL
|
|
* @param type Type to use when creating internal plane, or invalid
|
|
* @param format Format to use for internal planes, or 0
|
|
*/
|
|
static struct drm_plane *
|
|
drm_plane_create(struct drm_backend *b, const drmModePlane *kplane,
|
|
struct drm_output *output, enum wdrm_plane_type type,
|
|
uint32_t format)
|
|
{
|
|
struct drm_plane *plane;
|
|
drmModeObjectProperties *props;
|
|
uint32_t num_formats = (kplane) ? kplane->count_formats : 1;
|
|
|
|
plane = zalloc(sizeof(*plane) +
|
|
(sizeof(plane->formats[0]) * num_formats));
|
|
if (!plane) {
|
|
weston_log("%s: out of memory\n", __func__);
|
|
return NULL;
|
|
}
|
|
|
|
plane->backend = b;
|
|
plane->count_formats = num_formats;
|
|
plane->state_cur = drm_plane_state_alloc(NULL, plane);
|
|
plane->state_cur->complete = true;
|
|
|
|
if (kplane) {
|
|
plane->possible_crtcs = kplane->possible_crtcs;
|
|
plane->plane_id = kplane->plane_id;
|
|
|
|
props = drmModeObjectGetProperties(b->drm.fd, kplane->plane_id,
|
|
DRM_MODE_OBJECT_PLANE);
|
|
if (!props) {
|
|
weston_log("couldn't get plane properties\n");
|
|
goto err;
|
|
}
|
|
drm_property_info_populate(b, plane_props, plane->props,
|
|
WDRM_PLANE__COUNT, props);
|
|
plane->type =
|
|
drm_property_get_value(&plane->props[WDRM_PLANE_TYPE],
|
|
props,
|
|
WDRM_PLANE_TYPE__COUNT);
|
|
|
|
if (drm_plane_populate_formats(plane, kplane, props) < 0) {
|
|
drmModeFreeObjectProperties(props);
|
|
goto err;
|
|
}
|
|
|
|
drmModeFreeObjectProperties(props);
|
|
}
|
|
else {
|
|
plane->possible_crtcs = (1 << output->pipe);
|
|
plane->plane_id = 0;
|
|
plane->count_formats = 1;
|
|
plane->formats[0].format = format;
|
|
plane->type = type;
|
|
}
|
|
|
|
if (plane->type == WDRM_PLANE_TYPE__COUNT)
|
|
goto err_props;
|
|
|
|
/* With universal planes, everything is a DRM plane; without
|
|
* universal planes, the only DRM planes are overlay planes.
|
|
* Everything else is a fake plane. */
|
|
if (b->universal_planes) {
|
|
assert(kplane);
|
|
} else {
|
|
if (kplane)
|
|
assert(plane->type == WDRM_PLANE_TYPE_OVERLAY);
|
|
else
|
|
assert(plane->type != WDRM_PLANE_TYPE_OVERLAY &&
|
|
output);
|
|
}
|
|
|
|
weston_plane_init(&plane->base, b->compositor, 0, 0);
|
|
wl_list_insert(&b->plane_list, &plane->link);
|
|
|
|
return plane;
|
|
|
|
err_props:
|
|
drm_property_info_free(plane->props, WDRM_PLANE__COUNT);
|
|
err:
|
|
drm_plane_state_free(plane->state_cur, true);
|
|
free(plane);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Find, or create, a special-purpose plane
|
|
*
|
|
* Primary and cursor planes are a special case, in that before universal
|
|
* planes, they are driven by non-plane API calls. Without universal plane
|
|
* support, the only way to configure a primary plane is via drmModeSetCrtc,
|
|
* and the only way to configure a cursor plane is drmModeSetCursor2.
|
|
*
|
|
* Although they may actually be regular planes in the hardware, without
|
|
* universal plane support, these planes are not actually exposed to
|
|
* userspace in the regular plane list.
|
|
*
|
|
* However, for ease of internal tracking, we want to manage all planes
|
|
* through the same drm_plane structures. Therefore, when we are running
|
|
* without universal plane support, we create fake drm_plane structures
|
|
* to track these planes.
|
|
*
|
|
* @param b DRM backend
|
|
* @param output Output to use for plane
|
|
* @param type Type of plane
|
|
*/
|
|
static struct drm_plane *
|
|
drm_output_find_special_plane(struct drm_backend *b, struct drm_output *output,
|
|
enum wdrm_plane_type type)
|
|
{
|
|
struct drm_plane *plane;
|
|
|
|
if (!b->universal_planes) {
|
|
uint32_t format;
|
|
|
|
switch (type) {
|
|
case WDRM_PLANE_TYPE_CURSOR:
|
|
format = GBM_FORMAT_ARGB8888;
|
|
break;
|
|
case WDRM_PLANE_TYPE_PRIMARY:
|
|
/* We don't know what formats the primary plane supports
|
|
* before universal planes, so we just assume that the
|
|
* GBM format works; however, this isn't set until after
|
|
* the output is created. */
|
|
format = 0;
|
|
break;
|
|
default:
|
|
assert(!"invalid type in drm_output_find_special_plane");
|
|
break;
|
|
}
|
|
|
|
return drm_plane_create(b, NULL, output, type, format);
|
|
}
|
|
|
|
wl_list_for_each(plane, &b->plane_list, link) {
|
|
struct drm_output *tmp;
|
|
bool found_elsewhere = false;
|
|
|
|
if (plane->type != type)
|
|
continue;
|
|
if (!drm_plane_is_available(plane, output))
|
|
continue;
|
|
|
|
/* On some platforms, primary/cursor planes can roam
|
|
* between different CRTCs, so make sure we don't claim the
|
|
* same plane for two outputs. */
|
|
wl_list_for_each(tmp, &b->compositor->output_list,
|
|
base.link) {
|
|
if (tmp->cursor_plane == plane ||
|
|
tmp->scanout_plane == plane) {
|
|
found_elsewhere = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (found_elsewhere)
|
|
continue;
|
|
|
|
plane->possible_crtcs = (1 << output->pipe);
|
|
return plane;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Destroy one DRM plane
|
|
*
|
|
* Destroy a DRM plane, removing it from screen and releasing its retained
|
|
* buffers in the process. The counterpart to drm_plane_create.
|
|
*
|
|
* @param plane Plane to deallocate (will be freed)
|
|
*/
|
|
static void
|
|
drm_plane_destroy(struct drm_plane *plane)
|
|
{
|
|
if (plane->type == WDRM_PLANE_TYPE_OVERLAY)
|
|
drmModeSetPlane(plane->backend->drm.fd, plane->plane_id,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
drm_plane_state_free(plane->state_cur, true);
|
|
drm_property_info_free(plane->props, WDRM_PLANE__COUNT);
|
|
weston_plane_release(&plane->base);
|
|
wl_list_remove(&plane->link);
|
|
free(plane);
|
|
}
|
|
|
|
/**
|
|
* Create a drm_plane for virtual output
|
|
*
|
|
* Call drm_virtual_plane_destroy to clean up the plane.
|
|
*
|
|
* @param b DRM compositor backend
|
|
* @param output Output to create internal plane for
|
|
*/
|
|
static struct drm_plane *
|
|
drm_virtual_plane_create(struct drm_backend *b, struct drm_output *output)
|
|
{
|
|
struct drm_plane *plane;
|
|
|
|
/* num of formats is one */
|
|
plane = zalloc(sizeof(*plane) + sizeof(plane->formats[0]));
|
|
if (!plane) {
|
|
weston_log("%s: out of memory\n", __func__);
|
|
return NULL;
|
|
}
|
|
|
|
plane->type = WDRM_PLANE_TYPE_PRIMARY;
|
|
plane->backend = b;
|
|
plane->state_cur = drm_plane_state_alloc(NULL, plane);
|
|
plane->state_cur->complete = true;
|
|
plane->formats[0].format = output->gbm_format;
|
|
plane->count_formats = 1;
|
|
if ((output->gbm_bo_flags & GBM_BO_USE_LINEAR) && b->fb_modifiers) {
|
|
uint64_t *modifiers = zalloc(sizeof *modifiers);
|
|
if (modifiers) {
|
|
*modifiers = DRM_FORMAT_MOD_LINEAR;
|
|
plane->formats[0].modifiers = modifiers;
|
|
plane->formats[0].count_modifiers = 1;
|
|
}
|
|
}
|
|
|
|
weston_plane_init(&plane->base, b->compositor, 0, 0);
|
|
wl_list_insert(&b->plane_list, &plane->link);
|
|
|
|
return plane;
|
|
}
|
|
|
|
/**
|
|
* Destroy one DRM plane
|
|
*
|
|
* @param plane Plane to deallocate (will be freed)
|
|
*/
|
|
static void
|
|
drm_virtual_plane_destroy(struct drm_plane *plane)
|
|
{
|
|
drm_plane_state_free(plane->state_cur, true);
|
|
weston_plane_release(&plane->base);
|
|
wl_list_remove(&plane->link);
|
|
if (plane->formats[0].modifiers)
|
|
free(plane->formats[0].modifiers);
|
|
free(plane);
|
|
}
|
|
|
|
/**
|
|
* Initialise sprites (overlay planes)
|
|
*
|
|
* Walk the list of provided DRM planes, and add overlay planes.
|
|
*
|
|
* Call destroy_sprites to free these planes.
|
|
*
|
|
* @param b DRM compositor backend
|
|
*/
|
|
static void
|
|
create_sprites(struct drm_backend *b)
|
|
{
|
|
drmModePlaneRes *kplane_res;
|
|
drmModePlane *kplane;
|
|
struct drm_plane *drm_plane;
|
|
uint32_t i;
|
|
kplane_res = drmModeGetPlaneResources(b->drm.fd);
|
|
if (!kplane_res) {
|
|
weston_log("failed to get plane resources: %s\n",
|
|
strerror(errno));
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < kplane_res->count_planes; i++) {
|
|
kplane = drmModeGetPlane(b->drm.fd, kplane_res->planes[i]);
|
|
if (!kplane)
|
|
continue;
|
|
|
|
drm_plane = drm_plane_create(b, kplane, NULL,
|
|
WDRM_PLANE_TYPE__COUNT, 0);
|
|
drmModeFreePlane(kplane);
|
|
if (!drm_plane)
|
|
continue;
|
|
|
|
if (drm_plane->type == WDRM_PLANE_TYPE_OVERLAY)
|
|
weston_compositor_stack_plane(b->compositor,
|
|
&drm_plane->base,
|
|
&b->compositor->primary_plane);
|
|
}
|
|
|
|
drmModeFreePlaneResources(kplane_res);
|
|
}
|
|
|
|
/**
|
|
* Clean up sprites (overlay planes)
|
|
*
|
|
* The counterpart to create_sprites.
|
|
*
|
|
* @param b DRM compositor backend
|
|
*/
|
|
static void
|
|
destroy_sprites(struct drm_backend *b)
|
|
{
|
|
struct drm_plane *plane, *next;
|
|
|
|
wl_list_for_each_safe(plane, next, &b->plane_list, link)
|
|
drm_plane_destroy(plane);
|
|
}
|
|
|
|
static uint32_t
|
|
drm_refresh_rate_mHz(const drmModeModeInfo *info)
|
|
{
|
|
uint64_t refresh;
|
|
|
|
/* Calculate higher precision (mHz) refresh rate */
|
|
refresh = (info->clock * 1000000LL / info->htotal +
|
|
info->vtotal / 2) / info->vtotal;
|
|
|
|
if (info->flags & DRM_MODE_FLAG_INTERLACE)
|
|
refresh *= 2;
|
|
if (info->flags & DRM_MODE_FLAG_DBLSCAN)
|
|
refresh /= 2;
|
|
if (info->vscan > 1)
|
|
refresh /= info->vscan;
|
|
|
|
return refresh;
|
|
}
|
|
|
|
/**
|
|
* Add a mode to output's mode list
|
|
*
|
|
* Copy the supplied DRM mode into a Weston mode structure, and add it to the
|
|
* output's mode list.
|
|
*
|
|
* @param output DRM output to add mode to
|
|
* @param info DRM mode structure to add
|
|
* @returns Newly-allocated Weston/DRM mode structure
|
|
*/
|
|
static struct drm_mode *
|
|
drm_output_add_mode(struct drm_output *output, const drmModeModeInfo *info)
|
|
{
|
|
struct drm_mode *mode;
|
|
|
|
mode = malloc(sizeof *mode);
|
|
if (mode == NULL)
|
|
return NULL;
|
|
|
|
mode->base.flags = 0;
|
|
mode->base.width = info->hdisplay;
|
|
mode->base.height = info->vdisplay;
|
|
|
|
mode->base.refresh = drm_refresh_rate_mHz(info);
|
|
mode->mode_info = *info;
|
|
mode->blob_id = 0;
|
|
|
|
if (info->type & DRM_MODE_TYPE_PREFERRED)
|
|
mode->base.flags |= WL_OUTPUT_MODE_PREFERRED;
|
|
|
|
mode->base.aspect_ratio = drm_to_weston_mode_aspect_ratio(info->flags);
|
|
|
|
wl_list_insert(output->base.mode_list.prev, &mode->base.link);
|
|
|
|
return mode;
|
|
}
|
|
|
|
/**
|
|
* Destroys a mode, and removes it from the list.
|
|
*/
|
|
static void
|
|
drm_output_destroy_mode(struct drm_backend *backend, struct drm_mode *mode)
|
|
{
|
|
if (mode->blob_id)
|
|
drmModeDestroyPropertyBlob(backend->drm.fd, mode->blob_id);
|
|
wl_list_remove(&mode->base.link);
|
|
free(mode);
|
|
}
|
|
|
|
/** Destroy a list of drm_modes
|
|
*
|
|
* @param backend The backend for releasing mode property blobs.
|
|
* @param mode_list The list linked by drm_mode::base.link.
|
|
*/
|
|
static void
|
|
drm_mode_list_destroy(struct drm_backend *backend, struct wl_list *mode_list)
|
|
{
|
|
struct drm_mode *mode, *next;
|
|
|
|
wl_list_for_each_safe(mode, next, mode_list, base.link)
|
|
drm_output_destroy_mode(backend, mode);
|
|
}
|
|
|
|
static int
|
|
drm_subpixel_to_wayland(int drm_value)
|
|
{
|
|
switch (drm_value) {
|
|
default:
|
|
case DRM_MODE_SUBPIXEL_UNKNOWN:
|
|
return WL_OUTPUT_SUBPIXEL_UNKNOWN;
|
|
case DRM_MODE_SUBPIXEL_NONE:
|
|
return WL_OUTPUT_SUBPIXEL_NONE;
|
|
case DRM_MODE_SUBPIXEL_HORIZONTAL_RGB:
|
|
return WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB;
|
|
case DRM_MODE_SUBPIXEL_HORIZONTAL_BGR:
|
|
return WL_OUTPUT_SUBPIXEL_HORIZONTAL_BGR;
|
|
case DRM_MODE_SUBPIXEL_VERTICAL_RGB:
|
|
return WL_OUTPUT_SUBPIXEL_VERTICAL_RGB;
|
|
case DRM_MODE_SUBPIXEL_VERTICAL_BGR:
|
|
return WL_OUTPUT_SUBPIXEL_VERTICAL_BGR;
|
|
}
|
|
}
|
|
|
|
/* returns a value between 0-255 range, where higher is brighter */
|
|
static uint32_t
|
|
drm_get_backlight(struct drm_head *head)
|
|
{
|
|
long brightness, max_brightness, norm;
|
|
|
|
brightness = backlight_get_brightness(head->backlight);
|
|
max_brightness = backlight_get_max_brightness(head->backlight);
|
|
|
|
/* convert it on a scale of 0 to 255 */
|
|
norm = (brightness * 255)/(max_brightness);
|
|
|
|
return (uint32_t) norm;
|
|
}
|
|
|
|
/* values accepted are between 0-255 range */
|
|
static void
|
|
drm_set_backlight(struct weston_output *output_base, uint32_t value)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_head *head;
|
|
long max_brightness, new_brightness;
|
|
|
|
if (value > 255)
|
|
return;
|
|
|
|
wl_list_for_each(head, &output->base.head_list, base.output_link) {
|
|
if (!head->backlight)
|
|
return;
|
|
|
|
max_brightness = backlight_get_max_brightness(head->backlight);
|
|
|
|
/* get denormalized value */
|
|
new_brightness = (value * max_brightness) / 255;
|
|
|
|
backlight_set_brightness(head->backlight, new_brightness);
|
|
}
|
|
}
|
|
|
|
static void
|
|
drm_output_init_backlight(struct drm_output *output)
|
|
{
|
|
struct weston_head *base;
|
|
struct drm_head *head;
|
|
|
|
output->base.set_backlight = NULL;
|
|
|
|
wl_list_for_each(base, &output->base.head_list, output_link) {
|
|
head = to_drm_head(base);
|
|
|
|
if (head->backlight) {
|
|
weston_log("Initialized backlight for head '%s', device %s\n",
|
|
head->base.name, head->backlight->path);
|
|
|
|
if (!output->base.set_backlight) {
|
|
output->base.set_backlight = drm_set_backlight;
|
|
output->base.backlight_current =
|
|
drm_get_backlight(head);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Power output on or off
|
|
*
|
|
* The DPMS/power level of an output is used to switch it on or off. This
|
|
* is DRM's hook for doing so, which can called either as part of repaint,
|
|
* or independently of the repaint loop.
|
|
*
|
|
* If we are called as part of repaint, we simply set the relevant bit in
|
|
* state and return.
|
|
*
|
|
* This function is never called on a virtual output.
|
|
*/
|
|
static void
|
|
drm_set_dpms(struct weston_output *output_base, enum dpms_enum level)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
struct drm_pending_state *pending_state = b->repaint_data;
|
|
struct drm_output_state *state;
|
|
int ret;
|
|
|
|
assert(!output->virtual);
|
|
|
|
if (output->state_cur->dpms == level)
|
|
return;
|
|
|
|
/* If we're being called during the repaint loop, then this is
|
|
* simple: discard any previously-generated state, and create a new
|
|
* state where we disable everything. When we come to flush, this
|
|
* will be applied.
|
|
*
|
|
* However, we need to be careful: we can be called whilst another
|
|
* output is in its repaint cycle (pending_state exists), but our
|
|
* output still has an incomplete state application outstanding.
|
|
* In that case, we need to wait until that completes. */
|
|
if (pending_state && !output->state_last) {
|
|
/* The repaint loop already sets DPMS on; we don't need to
|
|
* explicitly set it on here, as it will already happen
|
|
* whilst applying the repaint state. */
|
|
if (level == WESTON_DPMS_ON)
|
|
return;
|
|
|
|
state = drm_pending_state_get_output(pending_state, output);
|
|
if (state)
|
|
drm_output_state_free(state);
|
|
state = drm_output_get_disable_state(pending_state, output);
|
|
return;
|
|
}
|
|
|
|
/* As we throw everything away when disabling, just send us back through
|
|
* a repaint cycle. */
|
|
if (level == WESTON_DPMS_ON) {
|
|
if (output->dpms_off_pending)
|
|
output->dpms_off_pending = 0;
|
|
weston_output_schedule_repaint(output_base);
|
|
return;
|
|
}
|
|
|
|
/* If we've already got a request in the pipeline, then we need to
|
|
* park our DPMS request until that request has quiesced. */
|
|
if (output->state_last) {
|
|
output->dpms_off_pending = 1;
|
|
return;
|
|
}
|
|
|
|
pending_state = drm_pending_state_alloc(b);
|
|
drm_output_get_disable_state(pending_state, output);
|
|
ret = drm_pending_state_apply_sync(pending_state);
|
|
if (ret != 0)
|
|
weston_log("drm_set_dpms: couldn't disable output?\n");
|
|
}
|
|
|
|
static const char * const connector_type_names[] = {
|
|
[DRM_MODE_CONNECTOR_Unknown] = "Unknown",
|
|
[DRM_MODE_CONNECTOR_VGA] = "VGA",
|
|
[DRM_MODE_CONNECTOR_DVII] = "DVI-I",
|
|
[DRM_MODE_CONNECTOR_DVID] = "DVI-D",
|
|
[DRM_MODE_CONNECTOR_DVIA] = "DVI-A",
|
|
[DRM_MODE_CONNECTOR_Composite] = "Composite",
|
|
[DRM_MODE_CONNECTOR_SVIDEO] = "SVIDEO",
|
|
[DRM_MODE_CONNECTOR_LVDS] = "LVDS",
|
|
[DRM_MODE_CONNECTOR_Component] = "Component",
|
|
[DRM_MODE_CONNECTOR_9PinDIN] = "DIN",
|
|
[DRM_MODE_CONNECTOR_DisplayPort] = "DP",
|
|
[DRM_MODE_CONNECTOR_HDMIA] = "HDMI-A",
|
|
[DRM_MODE_CONNECTOR_HDMIB] = "HDMI-B",
|
|
[DRM_MODE_CONNECTOR_TV] = "TV",
|
|
[DRM_MODE_CONNECTOR_eDP] = "eDP",
|
|
#ifdef DRM_MODE_CONNECTOR_DSI
|
|
[DRM_MODE_CONNECTOR_VIRTUAL] = "Virtual",
|
|
[DRM_MODE_CONNECTOR_DSI] = "DSI",
|
|
#endif
|
|
#ifdef DRM_MODE_CONNECTOR_DPI
|
|
[DRM_MODE_CONNECTOR_DPI] = "DPI",
|
|
#endif
|
|
};
|
|
|
|
/** Create a name given a DRM connector
|
|
*
|
|
* \param con The DRM connector whose type and id form the name.
|
|
* \return A newly allocate string, or NULL on error. Must be free()'d
|
|
* after use.
|
|
*
|
|
* The name does not identify the DRM display device.
|
|
*/
|
|
static char *
|
|
make_connector_name(const drmModeConnector *con)
|
|
{
|
|
char *name;
|
|
const char *type_name = NULL;
|
|
int ret;
|
|
|
|
if (con->connector_type < ARRAY_LENGTH(connector_type_names))
|
|
type_name = connector_type_names[con->connector_type];
|
|
|
|
if (!type_name)
|
|
type_name = "UNNAMED";
|
|
|
|
ret = asprintf(&name, "%s-%d", type_name, con->connector_type_id);
|
|
if (ret < 0)
|
|
return NULL;
|
|
|
|
return name;
|
|
}
|
|
|
|
static void drm_output_fini_cursor_egl(struct drm_output *output)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(output->gbm_cursor_fb); i++) {
|
|
drm_fb_unref(output->gbm_cursor_fb[i]);
|
|
output->gbm_cursor_fb[i] = NULL;
|
|
}
|
|
}
|
|
|
|
static int
|
|
drm_output_init_cursor_egl(struct drm_output *output, struct drm_backend *b)
|
|
{
|
|
unsigned int i;
|
|
|
|
/* No point creating cursors if we don't have a plane for them. */
|
|
if (!output->cursor_plane)
|
|
return 0;
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(output->gbm_cursor_fb); i++) {
|
|
struct gbm_bo *bo;
|
|
|
|
bo = gbm_bo_create(b->gbm, b->cursor_width, b->cursor_height,
|
|
GBM_FORMAT_ARGB8888,
|
|
GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE);
|
|
if (!bo)
|
|
goto err;
|
|
|
|
output->gbm_cursor_fb[i] =
|
|
drm_fb_get_from_bo(bo, b, false, BUFFER_CURSOR);
|
|
if (!output->gbm_cursor_fb[i]) {
|
|
gbm_bo_destroy(bo);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
err:
|
|
weston_log("cursor buffers unavailable, using gl cursors\n");
|
|
b->cursors_are_broken = 1;
|
|
drm_output_fini_cursor_egl(output);
|
|
return -1;
|
|
}
|
|
|
|
/* Init output state that depends on gl or gbm */
|
|
static int
|
|
drm_output_init_egl(struct drm_output *output, struct drm_backend *b)
|
|
{
|
|
EGLint format[2] = {
|
|
output->gbm_format,
|
|
fallback_format_for(output->gbm_format),
|
|
};
|
|
int n_formats = 1;
|
|
struct weston_mode *mode = output->base.current_mode;
|
|
struct drm_plane *plane = output->scanout_plane;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < plane->count_formats; i++) {
|
|
if (plane->formats[i].format == output->gbm_format)
|
|
break;
|
|
}
|
|
|
|
if (i == plane->count_formats) {
|
|
weston_log("format 0x%x not supported by output %s\n",
|
|
output->gbm_format, output->base.name);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef HAVE_GBM_MODIFIERS
|
|
if (plane->formats[i].count_modifiers > 0) {
|
|
output->gbm_surface =
|
|
gbm_surface_create_with_modifiers(b->gbm,
|
|
mode->width,
|
|
mode->height,
|
|
output->gbm_format,
|
|
plane->formats[i].modifiers,
|
|
plane->formats[i].count_modifiers);
|
|
} else
|
|
#endif
|
|
{
|
|
output->gbm_surface =
|
|
gbm_surface_create(b->gbm, mode->width, mode->height,
|
|
output->gbm_format,
|
|
output->gbm_bo_flags);
|
|
}
|
|
|
|
if (!output->gbm_surface) {
|
|
weston_log("failed to create gbm surface\n");
|
|
return -1;
|
|
}
|
|
|
|
if (format[1])
|
|
n_formats = 2;
|
|
if (gl_renderer->output_window_create(&output->base,
|
|
(EGLNativeWindowType)output->gbm_surface,
|
|
output->gbm_surface,
|
|
gl_renderer->opaque_attribs,
|
|
format,
|
|
n_formats) < 0) {
|
|
weston_log("failed to create gl renderer output state\n");
|
|
gbm_surface_destroy(output->gbm_surface);
|
|
return -1;
|
|
}
|
|
|
|
drm_output_init_cursor_egl(output, b);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_output_fini_egl(struct drm_output *output)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
|
|
/* Destroying the GBM surface will destroy all our GBM buffers,
|
|
* regardless of refcount. Ensure we destroy them here. */
|
|
if (!b->shutting_down &&
|
|
output->scanout_plane->state_cur->fb &&
|
|
output->scanout_plane->state_cur->fb->type == BUFFER_GBM_SURFACE) {
|
|
drm_plane_state_free(output->scanout_plane->state_cur, true);
|
|
output->scanout_plane->state_cur =
|
|
drm_plane_state_alloc(NULL, output->scanout_plane);
|
|
output->scanout_plane->state_cur->complete = true;
|
|
}
|
|
|
|
gl_renderer->output_destroy(&output->base);
|
|
gbm_surface_destroy(output->gbm_surface);
|
|
drm_output_fini_cursor_egl(output);
|
|
}
|
|
|
|
static int
|
|
drm_output_init_pixman(struct drm_output *output, struct drm_backend *b)
|
|
{
|
|
int w = output->base.current_mode->width;
|
|
int h = output->base.current_mode->height;
|
|
uint32_t format = output->gbm_format;
|
|
uint32_t pixman_format;
|
|
unsigned int i;
|
|
uint32_t flags = 0;
|
|
|
|
switch (format) {
|
|
case GBM_FORMAT_XRGB8888:
|
|
pixman_format = PIXMAN_x8r8g8b8;
|
|
break;
|
|
case GBM_FORMAT_RGB565:
|
|
pixman_format = PIXMAN_r5g6b5;
|
|
break;
|
|
default:
|
|
weston_log("Unsupported pixman format 0x%x\n", format);
|
|
return -1;
|
|
}
|
|
|
|
/* FIXME error checking */
|
|
for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
|
|
output->dumb[i] = drm_fb_create_dumb(b, w, h, format);
|
|
if (!output->dumb[i])
|
|
goto err;
|
|
|
|
output->image[i] =
|
|
pixman_image_create_bits(pixman_format, w, h,
|
|
output->dumb[i]->map,
|
|
output->dumb[i]->strides[0]);
|
|
if (!output->image[i])
|
|
goto err;
|
|
}
|
|
|
|
if (b->use_pixman_shadow)
|
|
flags |= PIXMAN_RENDERER_OUTPUT_USE_SHADOW;
|
|
|
|
if (pixman_renderer_output_create(&output->base, flags) < 0)
|
|
goto err;
|
|
|
|
weston_log("DRM: output %s %s shadow framebuffer.\n", output->base.name,
|
|
b->use_pixman_shadow ? "uses" : "does not use");
|
|
|
|
pixman_region32_init_rect(&output->previous_damage,
|
|
output->base.x, output->base.y, output->base.width, output->base.height);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
|
|
if (output->dumb[i])
|
|
drm_fb_unref(output->dumb[i]);
|
|
if (output->image[i])
|
|
pixman_image_unref(output->image[i]);
|
|
|
|
output->dumb[i] = NULL;
|
|
output->image[i] = NULL;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
drm_output_fini_pixman(struct drm_output *output)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
unsigned int i;
|
|
|
|
/* Destroying the Pixman surface will destroy all our buffers,
|
|
* regardless of refcount. Ensure we destroy them here. */
|
|
if (!b->shutting_down &&
|
|
output->scanout_plane->state_cur->fb &&
|
|
output->scanout_plane->state_cur->fb->type == BUFFER_PIXMAN_DUMB) {
|
|
drm_plane_state_free(output->scanout_plane->state_cur, true);
|
|
output->scanout_plane->state_cur =
|
|
drm_plane_state_alloc(NULL, output->scanout_plane);
|
|
output->scanout_plane->state_cur->complete = true;
|
|
}
|
|
|
|
pixman_renderer_output_destroy(&output->base);
|
|
pixman_region32_fini(&output->previous_damage);
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
|
|
pixman_image_unref(output->image[i]);
|
|
drm_fb_unref(output->dumb[i]);
|
|
output->dumb[i] = NULL;
|
|
output->image[i] = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
edid_parse_string(const uint8_t *data, char text[])
|
|
{
|
|
int i;
|
|
int replaced = 0;
|
|
|
|
/* this is always 12 bytes, but we can't guarantee it's null
|
|
* terminated or not junk. */
|
|
strncpy(text, (const char *) data, 12);
|
|
|
|
/* guarantee our new string is null-terminated */
|
|
text[12] = '\0';
|
|
|
|
/* remove insane chars */
|
|
for (i = 0; text[i] != '\0'; i++) {
|
|
if (text[i] == '\n' ||
|
|
text[i] == '\r') {
|
|
text[i] = '\0';
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* ensure string is printable */
|
|
for (i = 0; text[i] != '\0'; i++) {
|
|
if (!isprint(text[i])) {
|
|
text[i] = '-';
|
|
replaced++;
|
|
}
|
|
}
|
|
|
|
/* if the string is random junk, ignore the string */
|
|
if (replaced > 4)
|
|
text[0] = '\0';
|
|
}
|
|
|
|
#define EDID_DESCRIPTOR_ALPHANUMERIC_DATA_STRING 0xfe
|
|
#define EDID_DESCRIPTOR_DISPLAY_PRODUCT_NAME 0xfc
|
|
#define EDID_DESCRIPTOR_DISPLAY_PRODUCT_SERIAL_NUMBER 0xff
|
|
#define EDID_OFFSET_DATA_BLOCKS 0x36
|
|
#define EDID_OFFSET_LAST_BLOCK 0x6c
|
|
#define EDID_OFFSET_PNPID 0x08
|
|
#define EDID_OFFSET_SERIAL 0x0c
|
|
|
|
static int
|
|
edid_parse(struct drm_edid *edid, const uint8_t *data, size_t length)
|
|
{
|
|
int i;
|
|
uint32_t serial_number;
|
|
|
|
/* check header */
|
|
if (length < 128)
|
|
return -1;
|
|
if (data[0] != 0x00 || data[1] != 0xff)
|
|
return -1;
|
|
|
|
/* decode the PNP ID from three 5 bit words packed into 2 bytes
|
|
* /--08--\/--09--\
|
|
* 7654321076543210
|
|
* |\---/\---/\---/
|
|
* R C1 C2 C3 */
|
|
edid->pnp_id[0] = 'A' + ((data[EDID_OFFSET_PNPID + 0] & 0x7c) / 4) - 1;
|
|
edid->pnp_id[1] = 'A' + ((data[EDID_OFFSET_PNPID + 0] & 0x3) * 8) + ((data[EDID_OFFSET_PNPID + 1] & 0xe0) / 32) - 1;
|
|
edid->pnp_id[2] = 'A' + (data[EDID_OFFSET_PNPID + 1] & 0x1f) - 1;
|
|
edid->pnp_id[3] = '\0';
|
|
|
|
/* maybe there isn't a ASCII serial number descriptor, so use this instead */
|
|
serial_number = (uint32_t) data[EDID_OFFSET_SERIAL + 0];
|
|
serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 1] * 0x100;
|
|
serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 2] * 0x10000;
|
|
serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 3] * 0x1000000;
|
|
if (serial_number > 0)
|
|
sprintf(edid->serial_number, "%lu", (unsigned long) serial_number);
|
|
|
|
/* parse EDID data */
|
|
for (i = EDID_OFFSET_DATA_BLOCKS;
|
|
i <= EDID_OFFSET_LAST_BLOCK;
|
|
i += 18) {
|
|
/* ignore pixel clock data */
|
|
if (data[i] != 0)
|
|
continue;
|
|
if (data[i+2] != 0)
|
|
continue;
|
|
|
|
/* any useful blocks? */
|
|
if (data[i+3] == EDID_DESCRIPTOR_DISPLAY_PRODUCT_NAME) {
|
|
edid_parse_string(&data[i+5],
|
|
edid->monitor_name);
|
|
} else if (data[i+3] == EDID_DESCRIPTOR_DISPLAY_PRODUCT_SERIAL_NUMBER) {
|
|
edid_parse_string(&data[i+5],
|
|
edid->serial_number);
|
|
} else if (data[i+3] == EDID_DESCRIPTOR_ALPHANUMERIC_DATA_STRING) {
|
|
edid_parse_string(&data[i+5],
|
|
edid->eisa_id);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/** Parse monitor make, model and serial from EDID
|
|
*
|
|
* \param head The head whose \c drm_edid to fill in.
|
|
* \param props The DRM connector properties to get the EDID from.
|
|
* \param make[out] The monitor make (PNP ID).
|
|
* \param model[out] The monitor model (name).
|
|
* \param serial_number[out] The monitor serial number.
|
|
*
|
|
* Each of \c *make, \c *model and \c *serial_number are set only if the
|
|
* information is found in the EDID. The pointers they are set to must not
|
|
* be free()'d explicitly, instead they get implicitly freed when the
|
|
* \c drm_head is destroyed.
|
|
*/
|
|
static void
|
|
find_and_parse_output_edid(struct drm_head *head,
|
|
drmModeObjectPropertiesPtr props,
|
|
const char **make,
|
|
const char **model,
|
|
const char **serial_number)
|
|
{
|
|
drmModePropertyBlobPtr edid_blob = NULL;
|
|
uint32_t blob_id;
|
|
int rc;
|
|
|
|
blob_id =
|
|
drm_property_get_value(&head->props_conn[WDRM_CONNECTOR_EDID],
|
|
props, 0);
|
|
if (!blob_id)
|
|
return;
|
|
|
|
edid_blob = drmModeGetPropertyBlob(head->backend->drm.fd, blob_id);
|
|
if (!edid_blob)
|
|
return;
|
|
|
|
rc = edid_parse(&head->edid,
|
|
edid_blob->data,
|
|
edid_blob->length);
|
|
if (!rc) {
|
|
if (head->edid.pnp_id[0] != '\0')
|
|
*make = head->edid.pnp_id;
|
|
if (head->edid.monitor_name[0] != '\0')
|
|
*model = head->edid.monitor_name;
|
|
if (head->edid.serial_number[0] != '\0')
|
|
*serial_number = head->edid.serial_number;
|
|
}
|
|
drmModeFreePropertyBlob(edid_blob);
|
|
}
|
|
|
|
static bool
|
|
check_non_desktop(struct drm_head *head, drmModeObjectPropertiesPtr props)
|
|
{
|
|
struct drm_property_info *non_desktop_info =
|
|
&head->props_conn[WDRM_CONNECTOR_NON_DESKTOP];
|
|
|
|
return drm_property_get_value(non_desktop_info, props, 0);
|
|
}
|
|
|
|
static int
|
|
parse_modeline(const char *s, drmModeModeInfo *mode)
|
|
{
|
|
char hsync[16];
|
|
char vsync[16];
|
|
float fclock;
|
|
|
|
memset(mode, 0, sizeof *mode);
|
|
|
|
mode->type = DRM_MODE_TYPE_USERDEF;
|
|
mode->hskew = 0;
|
|
mode->vscan = 0;
|
|
mode->vrefresh = 0;
|
|
mode->flags = 0;
|
|
|
|
if (sscanf(s, "%f %hd %hd %hd %hd %hd %hd %hd %hd %15s %15s",
|
|
&fclock,
|
|
&mode->hdisplay,
|
|
&mode->hsync_start,
|
|
&mode->hsync_end,
|
|
&mode->htotal,
|
|
&mode->vdisplay,
|
|
&mode->vsync_start,
|
|
&mode->vsync_end,
|
|
&mode->vtotal, hsync, vsync) != 11)
|
|
return -1;
|
|
|
|
mode->clock = fclock * 1000;
|
|
if (strcasecmp(hsync, "+hsync") == 0)
|
|
mode->flags |= DRM_MODE_FLAG_PHSYNC;
|
|
else if (strcasecmp(hsync, "-hsync") == 0)
|
|
mode->flags |= DRM_MODE_FLAG_NHSYNC;
|
|
else
|
|
return -1;
|
|
|
|
if (strcasecmp(vsync, "+vsync") == 0)
|
|
mode->flags |= DRM_MODE_FLAG_PVSYNC;
|
|
else if (strcasecmp(vsync, "-vsync") == 0)
|
|
mode->flags |= DRM_MODE_FLAG_NVSYNC;
|
|
else
|
|
return -1;
|
|
|
|
snprintf(mode->name, sizeof mode->name, "%dx%d@%.3f",
|
|
mode->hdisplay, mode->vdisplay, fclock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
setup_output_seat_constraint(struct drm_backend *b,
|
|
struct weston_output *output,
|
|
const char *s)
|
|
{
|
|
if (strcmp(s, "") != 0) {
|
|
struct weston_pointer *pointer;
|
|
struct udev_seat *seat;
|
|
|
|
seat = udev_seat_get_named(&b->input, s);
|
|
if (!seat)
|
|
return;
|
|
|
|
seat->base.output = output;
|
|
|
|
pointer = weston_seat_get_pointer(&seat->base);
|
|
if (pointer)
|
|
weston_pointer_clamp(pointer,
|
|
&pointer->x,
|
|
&pointer->y);
|
|
}
|
|
}
|
|
|
|
static int
|
|
drm_output_attach_head(struct weston_output *output_base,
|
|
struct weston_head *head_base)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
|
|
if (wl_list_length(&output_base->head_list) >= MAX_CLONED_CONNECTORS)
|
|
return -1;
|
|
|
|
if (!output_base->enabled)
|
|
return 0;
|
|
|
|
/* XXX: ensure the configuration will work.
|
|
* This is actually impossible without major infrastructure
|
|
* work. */
|
|
|
|
/* Need to go through modeset to add connectors. */
|
|
/* XXX: Ideally we'd do this per-output, not globally. */
|
|
/* XXX: Doing it globally, what guarantees another output's update
|
|
* will not clear the flag before this output is updated?
|
|
*/
|
|
b->state_invalid = true;
|
|
|
|
weston_output_schedule_repaint(output_base);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_output_detach_head(struct weston_output *output_base,
|
|
struct weston_head *head_base)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
|
|
if (!output_base->enabled)
|
|
return;
|
|
|
|
/* Need to go through modeset to drop connectors that should no longer
|
|
* be driven. */
|
|
/* XXX: Ideally we'd do this per-output, not globally. */
|
|
b->state_invalid = true;
|
|
|
|
weston_output_schedule_repaint(output_base);
|
|
}
|
|
|
|
static int
|
|
parse_gbm_format(const char *s, uint32_t default_value, uint32_t *gbm_format)
|
|
{
|
|
const struct pixel_format_info *pinfo;
|
|
|
|
if (s == NULL) {
|
|
*gbm_format = default_value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
pinfo = pixel_format_get_info_by_drm_name(s);
|
|
if (!pinfo) {
|
|
weston_log("fatal: unrecognized pixel format: %s\n", s);
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* GBM formats and DRM formats are identical. */
|
|
*gbm_format = pinfo->format;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static uint32_t
|
|
u32distance(uint32_t a, uint32_t b)
|
|
{
|
|
if (a < b)
|
|
return b - a;
|
|
else
|
|
return a - b;
|
|
}
|
|
|
|
/** Choose equivalent mode
|
|
*
|
|
* If the two modes are not equivalent, return NULL.
|
|
* Otherwise return the mode that is more likely to work in place of both.
|
|
*
|
|
* None of the fuzzy matching criteria in this function have any justification.
|
|
*
|
|
* typedef struct _drmModeModeInfo {
|
|
* uint32_t clock;
|
|
* uint16_t hdisplay, hsync_start, hsync_end, htotal, hskew;
|
|
* uint16_t vdisplay, vsync_start, vsync_end, vtotal, vscan;
|
|
*
|
|
* uint32_t vrefresh;
|
|
*
|
|
* uint32_t flags;
|
|
* uint32_t type;
|
|
* char name[DRM_DISPLAY_MODE_LEN];
|
|
* } drmModeModeInfo, *drmModeModeInfoPtr;
|
|
*/
|
|
static const drmModeModeInfo *
|
|
drm_mode_pick_equivalent(const drmModeModeInfo *a, const drmModeModeInfo *b)
|
|
{
|
|
uint32_t refresh_a, refresh_b;
|
|
|
|
if (a->hdisplay != b->hdisplay || a->vdisplay != b->vdisplay)
|
|
return NULL;
|
|
|
|
if (a->flags != b->flags)
|
|
return NULL;
|
|
|
|
/* kHz */
|
|
if (u32distance(a->clock, b->clock) > 500)
|
|
return NULL;
|
|
|
|
refresh_a = drm_refresh_rate_mHz(a);
|
|
refresh_b = drm_refresh_rate_mHz(b);
|
|
if (u32distance(refresh_a, refresh_b) > 50)
|
|
return NULL;
|
|
|
|
if ((a->type ^ b->type) & DRM_MODE_TYPE_PREFERRED) {
|
|
if (a->type & DRM_MODE_TYPE_PREFERRED)
|
|
return a;
|
|
else
|
|
return b;
|
|
}
|
|
|
|
return a;
|
|
}
|
|
|
|
/* If the given mode info is not already in the list, add it.
|
|
* If it is in the list, either keep the existing or replace it,
|
|
* depending on which one is "better".
|
|
*/
|
|
static int
|
|
drm_output_try_add_mode(struct drm_output *output, const drmModeModeInfo *info)
|
|
{
|
|
struct weston_mode *base;
|
|
struct drm_mode *mode;
|
|
struct drm_backend *backend;
|
|
const drmModeModeInfo *chosen = NULL;
|
|
|
|
assert(info);
|
|
|
|
wl_list_for_each(base, &output->base.mode_list, link) {
|
|
mode = to_drm_mode(base);
|
|
chosen = drm_mode_pick_equivalent(&mode->mode_info, info);
|
|
if (chosen)
|
|
break;
|
|
}
|
|
|
|
if (chosen == info) {
|
|
backend = to_drm_backend(output->base.compositor);
|
|
drm_output_destroy_mode(backend, mode);
|
|
chosen = NULL;
|
|
}
|
|
|
|
if (!chosen) {
|
|
mode = drm_output_add_mode(output, info);
|
|
if (!mode)
|
|
return -1;
|
|
}
|
|
/* else { the equivalent mode is already in the list } */
|
|
|
|
return 0;
|
|
}
|
|
|
|
/** Rewrite the output's mode list
|
|
*
|
|
* @param output The output.
|
|
* @return 0 on success, -1 on failure.
|
|
*
|
|
* Destroy all existing modes in the list, and reconstruct a new list from
|
|
* scratch, based on the currently attached heads.
|
|
*
|
|
* On failure the output's mode list may contain some modes.
|
|
*/
|
|
static int
|
|
drm_output_update_modelist_from_heads(struct drm_output *output)
|
|
{
|
|
struct drm_backend *backend = to_drm_backend(output->base.compositor);
|
|
struct weston_head *head_base;
|
|
struct drm_head *head;
|
|
int i;
|
|
int ret;
|
|
|
|
assert(!output->base.enabled);
|
|
|
|
drm_mode_list_destroy(backend, &output->base.mode_list);
|
|
|
|
wl_list_for_each(head_base, &output->base.head_list, output_link) {
|
|
head = to_drm_head(head_base);
|
|
for (i = 0; i < head->connector->count_modes; i++) {
|
|
ret = drm_output_try_add_mode(output,
|
|
&head->connector->modes[i]);
|
|
if (ret < 0)
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Choose suitable mode for an output
|
|
*
|
|
* Find the most suitable mode to use for initial setup (or reconfiguration on
|
|
* hotplug etc) for a DRM output.
|
|
*
|
|
* @param output DRM output to choose mode for
|
|
* @param kind Strategy and preference to use when choosing mode
|
|
* @param width Desired width for this output
|
|
* @param height Desired height for this output
|
|
* @param current_mode Mode currently being displayed on this output
|
|
* @param modeline Manually-entered mode (may be NULL)
|
|
* @returns A mode from the output's mode list, or NULL if none available
|
|
*/
|
|
static struct drm_mode *
|
|
drm_output_choose_initial_mode(struct drm_backend *backend,
|
|
struct drm_output *output,
|
|
enum weston_drm_backend_output_mode mode,
|
|
const char *modeline,
|
|
const drmModeModeInfo *current_mode)
|
|
{
|
|
struct drm_mode *preferred = NULL;
|
|
struct drm_mode *current = NULL;
|
|
struct drm_mode *configured = NULL;
|
|
struct drm_mode *config_fall_back = NULL;
|
|
struct drm_mode *best = NULL;
|
|
struct drm_mode *drm_mode;
|
|
drmModeModeInfo drm_modeline;
|
|
int32_t width = 0;
|
|
int32_t height = 0;
|
|
uint32_t refresh = 0;
|
|
uint32_t aspect_width = 0;
|
|
uint32_t aspect_height = 0;
|
|
enum weston_mode_aspect_ratio aspect_ratio = WESTON_MODE_PIC_AR_NONE;
|
|
int n;
|
|
|
|
if (mode == WESTON_DRM_BACKEND_OUTPUT_PREFERRED && modeline) {
|
|
n = sscanf(modeline, "%dx%d@%d %u:%u", &width, &height,
|
|
&refresh, &aspect_width, &aspect_height);
|
|
if (backend->aspect_ratio_supported && n == 5) {
|
|
if (aspect_width == 4 && aspect_height == 3)
|
|
aspect_ratio = WESTON_MODE_PIC_AR_4_3;
|
|
else if (aspect_width == 16 && aspect_height == 9)
|
|
aspect_ratio = WESTON_MODE_PIC_AR_16_9;
|
|
else if (aspect_width == 64 && aspect_height == 27)
|
|
aspect_ratio = WESTON_MODE_PIC_AR_64_27;
|
|
else if (aspect_width == 256 && aspect_height == 135)
|
|
aspect_ratio = WESTON_MODE_PIC_AR_256_135;
|
|
else
|
|
weston_log("Invalid modeline \"%s\" for output %s\n",
|
|
modeline, output->base.name);
|
|
}
|
|
if (n != 2 && n != 3 && n != 5) {
|
|
width = -1;
|
|
|
|
if (parse_modeline(modeline, &drm_modeline) == 0) {
|
|
configured = drm_output_add_mode(output, &drm_modeline);
|
|
if (!configured)
|
|
return NULL;
|
|
} else {
|
|
weston_log("Invalid modeline \"%s\" for output %s\n",
|
|
modeline, output->base.name);
|
|
}
|
|
}
|
|
}
|
|
|
|
wl_list_for_each_reverse(drm_mode, &output->base.mode_list, base.link) {
|
|
if (width == drm_mode->base.width &&
|
|
height == drm_mode->base.height &&
|
|
(refresh == 0 || refresh == drm_mode->mode_info.vrefresh)) {
|
|
if (!backend->aspect_ratio_supported ||
|
|
aspect_ratio == drm_mode->base.aspect_ratio)
|
|
configured = drm_mode;
|
|
else
|
|
config_fall_back = drm_mode;
|
|
}
|
|
|
|
if (memcmp(current_mode, &drm_mode->mode_info,
|
|
sizeof *current_mode) == 0)
|
|
current = drm_mode;
|
|
|
|
if (drm_mode->base.flags & WL_OUTPUT_MODE_PREFERRED)
|
|
preferred = drm_mode;
|
|
|
|
best = drm_mode;
|
|
}
|
|
|
|
if (current == NULL && current_mode->clock != 0) {
|
|
current = drm_output_add_mode(output, current_mode);
|
|
if (!current)
|
|
return NULL;
|
|
}
|
|
|
|
if (mode == WESTON_DRM_BACKEND_OUTPUT_CURRENT)
|
|
configured = current;
|
|
|
|
if (configured)
|
|
return configured;
|
|
|
|
if (config_fall_back)
|
|
return config_fall_back;
|
|
|
|
if (preferred)
|
|
return preferred;
|
|
|
|
if (current)
|
|
return current;
|
|
|
|
if (best)
|
|
return best;
|
|
|
|
weston_log("no available modes for %s\n", output->base.name);
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
drm_head_read_current_setup(struct drm_head *head, struct drm_backend *backend)
|
|
{
|
|
int drm_fd = backend->drm.fd;
|
|
drmModeEncoder *encoder;
|
|
drmModeCrtc *crtc;
|
|
|
|
/* Get the current mode on the crtc that's currently driving
|
|
* this connector. */
|
|
encoder = drmModeGetEncoder(drm_fd, head->connector->encoder_id);
|
|
if (encoder != NULL) {
|
|
head->inherited_crtc_id = encoder->crtc_id;
|
|
|
|
crtc = drmModeGetCrtc(drm_fd, encoder->crtc_id);
|
|
drmModeFreeEncoder(encoder);
|
|
|
|
if (crtc == NULL)
|
|
return -1;
|
|
if (crtc->mode_valid)
|
|
head->inherited_mode = crtc->mode;
|
|
drmModeFreeCrtc(crtc);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
drm_output_set_mode(struct weston_output *base,
|
|
enum weston_drm_backend_output_mode mode,
|
|
const char *modeline)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
struct drm_head *head = to_drm_head(weston_output_get_first_head(base));
|
|
|
|
struct drm_mode *current;
|
|
|
|
if (output->virtual)
|
|
return -1;
|
|
|
|
if (drm_output_update_modelist_from_heads(output) < 0)
|
|
return -1;
|
|
|
|
current = drm_output_choose_initial_mode(b, output, mode, modeline,
|
|
&head->inherited_mode);
|
|
if (!current)
|
|
return -1;
|
|
|
|
output->base.current_mode = ¤t->base;
|
|
output->base.current_mode->flags |= WL_OUTPUT_MODE_CURRENT;
|
|
|
|
/* Set native_ fields, so weston_output_mode_switch_to_native() works */
|
|
output->base.native_mode = output->base.current_mode;
|
|
output->base.native_scale = output->base.current_scale;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_output_set_gbm_format(struct weston_output *base,
|
|
const char *gbm_format)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
if (parse_gbm_format(gbm_format, b->gbm_format, &output->gbm_format) == -1)
|
|
output->gbm_format = b->gbm_format;
|
|
|
|
/* Without universal planes, we can't discover which formats are
|
|
* supported by the primary plane; we just hope that the GBM format
|
|
* works. */
|
|
if (!b->universal_planes)
|
|
output->scanout_plane->formats[0].format = output->gbm_format;
|
|
}
|
|
|
|
static void
|
|
drm_output_set_seat(struct weston_output *base,
|
|
const char *seat)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
setup_output_seat_constraint(b, &output->base,
|
|
seat ? seat : "");
|
|
}
|
|
|
|
static int
|
|
drm_output_init_gamma_size(struct drm_output *output)
|
|
{
|
|
struct drm_backend *backend = to_drm_backend(output->base.compositor);
|
|
drmModeCrtc *crtc;
|
|
|
|
assert(output->base.compositor);
|
|
assert(output->crtc_id != 0);
|
|
crtc = drmModeGetCrtc(backend->drm.fd, output->crtc_id);
|
|
if (!crtc)
|
|
return -1;
|
|
|
|
output->base.gamma_size = crtc->gamma_size;
|
|
|
|
drmModeFreeCrtc(crtc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static uint32_t
|
|
drm_head_get_possible_crtcs_mask(struct drm_head *head)
|
|
{
|
|
uint32_t possible_crtcs = 0;
|
|
drmModeEncoder *encoder;
|
|
int i;
|
|
|
|
for (i = 0; i < head->connector->count_encoders; i++) {
|
|
encoder = drmModeGetEncoder(head->backend->drm.fd,
|
|
head->connector->encoders[i]);
|
|
if (!encoder)
|
|
continue;
|
|
|
|
possible_crtcs |= encoder->possible_crtcs;
|
|
drmModeFreeEncoder(encoder);
|
|
}
|
|
|
|
return possible_crtcs;
|
|
}
|
|
|
|
static int
|
|
drm_crtc_get_index(drmModeRes *resources, uint32_t crtc_id)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < resources->count_crtcs; i++) {
|
|
if (resources->crtcs[i] == crtc_id)
|
|
return i;
|
|
}
|
|
|
|
assert(0 && "unknown crtc id");
|
|
return -1;
|
|
}
|
|
|
|
/** Pick a CRTC that might be able to drive all attached connectors
|
|
*
|
|
* @param output The output whose attached heads to include.
|
|
* @param resources The DRM KMS resources.
|
|
* @return CRTC index, or -1 on failure or not found.
|
|
*/
|
|
static int
|
|
drm_output_pick_crtc(struct drm_output *output, drmModeRes *resources)
|
|
{
|
|
struct drm_backend *backend;
|
|
struct weston_head *base;
|
|
struct drm_head *head;
|
|
uint32_t possible_crtcs = 0xffffffff;
|
|
int existing_crtc[32];
|
|
unsigned j, n = 0;
|
|
uint32_t crtc_id;
|
|
int best_crtc_index = -1;
|
|
int fallback_crtc_index = -1;
|
|
int i;
|
|
bool match;
|
|
|
|
backend = to_drm_backend(output->base.compositor);
|
|
|
|
/* This algorithm ignores drmModeEncoder::possible_clones restriction,
|
|
* because it is more often set wrong than not in the kernel. */
|
|
|
|
/* Accumulate a mask of possible crtcs and find existing routings. */
|
|
wl_list_for_each(base, &output->base.head_list, output_link) {
|
|
head = to_drm_head(base);
|
|
|
|
possible_crtcs &= drm_head_get_possible_crtcs_mask(head);
|
|
|
|
crtc_id = head->inherited_crtc_id;
|
|
if (crtc_id > 0 && n < ARRAY_LENGTH(existing_crtc))
|
|
existing_crtc[n++] = drm_crtc_get_index(resources,
|
|
crtc_id);
|
|
}
|
|
|
|
/* Find a crtc that could drive each connector individually at least,
|
|
* and prefer existing routings. */
|
|
for (i = 0; i < resources->count_crtcs; i++) {
|
|
crtc_id = resources->crtcs[i];
|
|
|
|
/* Could the crtc not drive each connector? */
|
|
if (!(possible_crtcs & (1 << i)))
|
|
continue;
|
|
|
|
/* Is the crtc already in use? */
|
|
if (drm_output_find_by_crtc(backend, crtc_id))
|
|
continue;
|
|
|
|
/* Try to preserve the existing CRTC -> connector routing;
|
|
* it makes initialisation faster, and also since we have a
|
|
* very dumb picking algorithm, may preserve a better
|
|
* choice. */
|
|
for (j = 0; j < n; j++) {
|
|
if (existing_crtc[j] == i)
|
|
return i;
|
|
}
|
|
|
|
/* Check if any other head had existing routing to this CRTC.
|
|
* If they did, this is not the best CRTC as it might be needed
|
|
* for another output we haven't enabled yet. */
|
|
match = false;
|
|
wl_list_for_each(base, &backend->compositor->head_list,
|
|
compositor_link) {
|
|
head = to_drm_head(base);
|
|
|
|
if (head->base.output == &output->base)
|
|
continue;
|
|
|
|
if (weston_head_is_enabled(&head->base))
|
|
continue;
|
|
|
|
if (head->inherited_crtc_id == crtc_id) {
|
|
match = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!match)
|
|
best_crtc_index = i;
|
|
|
|
fallback_crtc_index = i;
|
|
}
|
|
|
|
if (best_crtc_index != -1)
|
|
return best_crtc_index;
|
|
|
|
if (fallback_crtc_index != -1)
|
|
return fallback_crtc_index;
|
|
|
|
/* Likely possible_crtcs was empty due to asking for clones,
|
|
* but since the DRM documentation says the kernel lies, let's
|
|
* pick one crtc anyway. Trial and error is the only way to
|
|
* be sure if something doesn't work. */
|
|
|
|
/* First pick any existing assignment. */
|
|
for (j = 0; j < n; j++) {
|
|
crtc_id = resources->crtcs[existing_crtc[j]];
|
|
if (!drm_output_find_by_crtc(backend, crtc_id))
|
|
return existing_crtc[j];
|
|
}
|
|
|
|
/* Otherwise pick any available crtc. */
|
|
for (i = 0; i < resources->count_crtcs; i++) {
|
|
crtc_id = resources->crtcs[i];
|
|
|
|
if (!drm_output_find_by_crtc(backend, crtc_id))
|
|
return i;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/** Allocate a CRTC for the output
|
|
*
|
|
* @param output The output with no allocated CRTC.
|
|
* @param resources DRM KMS resources.
|
|
* @return 0 on success, -1 on failure.
|
|
*
|
|
* Finds a free CRTC that might drive the attached connectors, reserves the CRTC
|
|
* for the output, and loads the CRTC properties.
|
|
*
|
|
* Populates the cursor and scanout planes.
|
|
*
|
|
* On failure, the output remains without a CRTC.
|
|
*/
|
|
static int
|
|
drm_output_init_crtc(struct drm_output *output, drmModeRes *resources)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
drmModeObjectPropertiesPtr props;
|
|
int i;
|
|
|
|
assert(output->crtc_id == 0);
|
|
|
|
i = drm_output_pick_crtc(output, resources);
|
|
if (i < 0) {
|
|
weston_log("Output '%s': No available CRTCs.\n",
|
|
output->base.name);
|
|
return -1;
|
|
}
|
|
|
|
output->crtc_id = resources->crtcs[i];
|
|
output->pipe = i;
|
|
|
|
props = drmModeObjectGetProperties(b->drm.fd, output->crtc_id,
|
|
DRM_MODE_OBJECT_CRTC);
|
|
if (!props) {
|
|
weston_log("failed to get CRTC properties\n");
|
|
goto err_crtc;
|
|
}
|
|
drm_property_info_populate(b, crtc_props, output->props_crtc,
|
|
WDRM_CRTC__COUNT, props);
|
|
drmModeFreeObjectProperties(props);
|
|
|
|
output->scanout_plane =
|
|
drm_output_find_special_plane(b, output,
|
|
WDRM_PLANE_TYPE_PRIMARY);
|
|
if (!output->scanout_plane) {
|
|
weston_log("Failed to find primary plane for output %s\n",
|
|
output->base.name);
|
|
goto err_crtc;
|
|
}
|
|
|
|
/* Failing to find a cursor plane is not fatal, as we'll fall back
|
|
* to software cursor. */
|
|
output->cursor_plane =
|
|
drm_output_find_special_plane(b, output,
|
|
WDRM_PLANE_TYPE_CURSOR);
|
|
|
|
wl_array_remove_uint32(&b->unused_crtcs, output->crtc_id);
|
|
|
|
return 0;
|
|
|
|
err_crtc:
|
|
output->crtc_id = 0;
|
|
output->pipe = 0;
|
|
|
|
return -1;
|
|
}
|
|
|
|
/** Free the CRTC from the output
|
|
*
|
|
* @param output The output whose CRTC to deallocate.
|
|
*
|
|
* The CRTC reserved for the given output becomes free to use again.
|
|
*/
|
|
static void
|
|
drm_output_fini_crtc(struct drm_output *output)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
uint32_t *unused;
|
|
|
|
if (!b->universal_planes && !b->shutting_down) {
|
|
/* With universal planes, the 'special' planes are allocated at
|
|
* startup, freed at shutdown, and live on the plane list in
|
|
* between. We want the planes to continue to exist and be freed
|
|
* up for other outputs.
|
|
*
|
|
* Without universal planes, our special planes are
|
|
* pseudo-planes allocated at output creation, freed at output
|
|
* destruction, and not usable by other outputs.
|
|
*
|
|
* On the other hand, if the compositor is already shutting down,
|
|
* the plane has already been destroyed.
|
|
*/
|
|
if (output->cursor_plane)
|
|
drm_plane_destroy(output->cursor_plane);
|
|
if (output->scanout_plane)
|
|
drm_plane_destroy(output->scanout_plane);
|
|
}
|
|
|
|
drm_property_info_free(output->props_crtc, WDRM_CRTC__COUNT);
|
|
|
|
assert(output->crtc_id != 0);
|
|
|
|
unused = wl_array_add(&b->unused_crtcs, sizeof(*unused));
|
|
*unused = output->crtc_id;
|
|
|
|
/* Force resetting unused CRTCs */
|
|
b->state_invalid = true;
|
|
|
|
output->crtc_id = 0;
|
|
output->cursor_plane = NULL;
|
|
output->scanout_plane = NULL;
|
|
}
|
|
|
|
static void
|
|
drm_output_print_modes(struct drm_output *output)
|
|
{
|
|
struct weston_mode *m;
|
|
struct drm_mode *dm;
|
|
const char *aspect_ratio;
|
|
|
|
wl_list_for_each(m, &output->base.mode_list, link) {
|
|
dm = to_drm_mode(m);
|
|
|
|
aspect_ratio = aspect_ratio_to_string(m->aspect_ratio);
|
|
weston_log_continue(STAMP_SPACE "%dx%d@%.1f%s%s%s, %.1f MHz\n",
|
|
m->width, m->height, m->refresh / 1000.0,
|
|
aspect_ratio,
|
|
m->flags & WL_OUTPUT_MODE_PREFERRED ?
|
|
", preferred" : "",
|
|
m->flags & WL_OUTPUT_MODE_CURRENT ?
|
|
", current" : "",
|
|
dm->mode_info.clock / 1000.0);
|
|
}
|
|
}
|
|
|
|
static int
|
|
drm_output_enable(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
drmModeRes *resources;
|
|
int ret;
|
|
|
|
assert(!output->virtual);
|
|
|
|
resources = drmModeGetResources(b->drm.fd);
|
|
if (!resources) {
|
|
weston_log("drmModeGetResources failed\n");
|
|
return -1;
|
|
}
|
|
ret = drm_output_init_crtc(output, resources);
|
|
drmModeFreeResources(resources);
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
if (drm_output_init_gamma_size(output) < 0)
|
|
goto err;
|
|
|
|
if (b->pageflip_timeout)
|
|
drm_output_pageflip_timer_create(output);
|
|
|
|
if (b->use_pixman) {
|
|
if (drm_output_init_pixman(output, b) < 0) {
|
|
weston_log("Failed to init output pixman state\n");
|
|
goto err;
|
|
}
|
|
} else if (drm_output_init_egl(output, b) < 0) {
|
|
weston_log("Failed to init output gl state\n");
|
|
goto err;
|
|
}
|
|
|
|
drm_output_init_backlight(output);
|
|
|
|
output->base.start_repaint_loop = drm_output_start_repaint_loop;
|
|
output->base.repaint = drm_output_repaint;
|
|
output->base.assign_planes = drm_assign_planes;
|
|
output->base.set_dpms = drm_set_dpms;
|
|
output->base.switch_mode = drm_output_switch_mode;
|
|
output->base.set_gamma = drm_output_set_gamma;
|
|
|
|
if (output->cursor_plane)
|
|
weston_compositor_stack_plane(b->compositor,
|
|
&output->cursor_plane->base,
|
|
NULL);
|
|
else
|
|
b->cursors_are_broken = 1;
|
|
|
|
weston_compositor_stack_plane(b->compositor,
|
|
&output->scanout_plane->base,
|
|
&b->compositor->primary_plane);
|
|
|
|
weston_log("Output %s (crtc %d) video modes:\n",
|
|
output->base.name, output->crtc_id);
|
|
drm_output_print_modes(output);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
drm_output_fini_crtc(output);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
drm_output_deinit(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
if (b->use_pixman)
|
|
drm_output_fini_pixman(output);
|
|
else
|
|
drm_output_fini_egl(output);
|
|
|
|
/* Since our planes are no longer in use anywhere, remove their base
|
|
* weston_plane's link from the plane stacking list, unless we're
|
|
* shutting down, in which case the plane has already been
|
|
* destroyed. */
|
|
if (!b->shutting_down) {
|
|
wl_list_remove(&output->scanout_plane->base.link);
|
|
wl_list_init(&output->scanout_plane->base.link);
|
|
|
|
if (output->cursor_plane) {
|
|
wl_list_remove(&output->cursor_plane->base.link);
|
|
wl_list_init(&output->cursor_plane->base.link);
|
|
/* Turn off hardware cursor */
|
|
drmModeSetCursor(b->drm.fd, output->crtc_id, 0, 0, 0);
|
|
}
|
|
}
|
|
|
|
drm_output_fini_crtc(output);
|
|
}
|
|
|
|
static void
|
|
drm_head_destroy(struct drm_head *head);
|
|
|
|
static void
|
|
drm_output_destroy(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
assert(!output->virtual);
|
|
|
|
if (output->page_flip_pending || output->vblank_pending ||
|
|
output->atomic_complete_pending) {
|
|
output->destroy_pending = 1;
|
|
weston_log("destroy output while page flip pending\n");
|
|
return;
|
|
}
|
|
|
|
if (output->base.enabled)
|
|
drm_output_deinit(&output->base);
|
|
|
|
drm_mode_list_destroy(b, &output->base.mode_list);
|
|
|
|
if (output->pageflip_timer)
|
|
wl_event_source_remove(output->pageflip_timer);
|
|
|
|
weston_output_release(&output->base);
|
|
|
|
assert(!output->state_last);
|
|
drm_output_state_free(output->state_cur);
|
|
|
|
free(output);
|
|
}
|
|
|
|
static int
|
|
drm_output_disable(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
|
|
assert(!output->virtual);
|
|
|
|
if (output->page_flip_pending || output->vblank_pending ||
|
|
output->atomic_complete_pending) {
|
|
output->disable_pending = 1;
|
|
return -1;
|
|
}
|
|
|
|
weston_log("Disabling output %s\n", output->base.name);
|
|
|
|
if (output->base.enabled)
|
|
drm_output_deinit(&output->base);
|
|
|
|
output->disable_pending = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Update the list of unused connectors and CRTCs
|
|
*
|
|
* This keeps the unused_crtc arrays up to date.
|
|
*
|
|
* @param b Weston backend structure
|
|
* @param resources DRM resources for this device
|
|
*/
|
|
static void
|
|
drm_backend_update_unused_outputs(struct drm_backend *b, drmModeRes *resources)
|
|
{
|
|
int i;
|
|
|
|
wl_array_release(&b->unused_crtcs);
|
|
wl_array_init(&b->unused_crtcs);
|
|
|
|
for (i = 0; i < resources->count_crtcs; i++) {
|
|
struct drm_output *output;
|
|
uint32_t *crtc_id;
|
|
|
|
output = drm_output_find_by_crtc(b, resources->crtcs[i]);
|
|
if (output && output->base.enabled)
|
|
continue;
|
|
|
|
crtc_id = wl_array_add(&b->unused_crtcs, sizeof(*crtc_id));
|
|
*crtc_id = resources->crtcs[i];
|
|
}
|
|
}
|
|
|
|
/** Replace connector data and monitor information
|
|
*
|
|
* @param head The head to update.
|
|
* @param connector The connector data to be owned by the head, must match
|
|
* the head's connector ID.
|
|
* @return 0 on success, -1 on failure.
|
|
*
|
|
* Takes ownership of @c connector on success, not on failure.
|
|
*
|
|
* May schedule a heads changed call.
|
|
*/
|
|
static int
|
|
drm_head_assign_connector_info(struct drm_head *head,
|
|
drmModeConnector *connector)
|
|
{
|
|
drmModeObjectProperties *props;
|
|
const char *make = "unknown";
|
|
const char *model = "unknown";
|
|
const char *serial_number = "unknown";
|
|
|
|
assert(connector);
|
|
assert(head->connector_id == connector->connector_id);
|
|
|
|
props = drmModeObjectGetProperties(head->backend->drm.fd,
|
|
head->connector_id,
|
|
DRM_MODE_OBJECT_CONNECTOR);
|
|
if (!props) {
|
|
weston_log("Error: failed to get connector '%s' properties\n",
|
|
head->base.name);
|
|
return -1;
|
|
}
|
|
|
|
if (head->connector)
|
|
drmModeFreeConnector(head->connector);
|
|
head->connector = connector;
|
|
|
|
drm_property_info_populate(head->backend, connector_props,
|
|
head->props_conn,
|
|
WDRM_CONNECTOR__COUNT, props);
|
|
find_and_parse_output_edid(head, props, &make, &model, &serial_number);
|
|
weston_head_set_monitor_strings(&head->base, make, model, serial_number);
|
|
weston_head_set_non_desktop(&head->base,
|
|
check_non_desktop(head, props));
|
|
weston_head_set_subpixel(&head->base,
|
|
drm_subpixel_to_wayland(head->connector->subpixel));
|
|
|
|
weston_head_set_physical_size(&head->base, head->connector->mmWidth,
|
|
head->connector->mmHeight);
|
|
|
|
drmModeFreeObjectProperties(props);
|
|
|
|
/* Unknown connection status is assumed disconnected. */
|
|
weston_head_set_connection_status(&head->base,
|
|
head->connector->connection == DRM_MODE_CONNECTED);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_head_log_info(struct drm_head *head, const char *msg)
|
|
{
|
|
if (head->base.connected) {
|
|
weston_log("DRM: head '%s' %s, connector %d is connected, "
|
|
"EDID make '%s', model '%s', serial '%s'\n",
|
|
head->base.name, msg, head->connector_id,
|
|
head->base.make, head->base.model,
|
|
head->base.serial_number ?: "");
|
|
} else {
|
|
weston_log("DRM: head '%s' %s, connector %d is disconnected.\n",
|
|
head->base.name, msg, head->connector_id);
|
|
}
|
|
}
|
|
|
|
/** Update connector and monitor information
|
|
*
|
|
* @param head The head to update.
|
|
*
|
|
* Re-reads the DRM property lists for the connector and updates monitor
|
|
* information and connection status. This may schedule a heads changed call
|
|
* to the user.
|
|
*/
|
|
static void
|
|
drm_head_update_info(struct drm_head *head)
|
|
{
|
|
drmModeConnector *connector;
|
|
|
|
connector = drmModeGetConnector(head->backend->drm.fd,
|
|
head->connector_id);
|
|
if (!connector) {
|
|
weston_log("DRM: getting connector info for '%s' failed.\n",
|
|
head->base.name);
|
|
return;
|
|
}
|
|
|
|
if (drm_head_assign_connector_info(head, connector) < 0)
|
|
drmModeFreeConnector(connector);
|
|
|
|
if (head->base.device_changed)
|
|
drm_head_log_info(head, "updated");
|
|
}
|
|
|
|
/**
|
|
* Create a Weston head for a connector
|
|
*
|
|
* Given a DRM connector, create a matching drm_head structure and add it
|
|
* to Weston's head list.
|
|
*
|
|
* @param b Weston backend structure
|
|
* @param connector_id DRM connector ID for the head
|
|
* @param drm_device udev device pointer
|
|
* @returns The new head, or NULL on failure.
|
|
*/
|
|
static struct drm_head *
|
|
drm_head_create(struct drm_backend *backend, uint32_t connector_id,
|
|
struct udev_device *drm_device)
|
|
{
|
|
struct drm_head *head;
|
|
drmModeConnector *connector;
|
|
char *name;
|
|
|
|
head = zalloc(sizeof *head);
|
|
if (!head)
|
|
return NULL;
|
|
|
|
connector = drmModeGetConnector(backend->drm.fd, connector_id);
|
|
if (!connector)
|
|
goto err_alloc;
|
|
|
|
name = make_connector_name(connector);
|
|
if (!name)
|
|
goto err_alloc;
|
|
|
|
weston_head_init(&head->base, name);
|
|
free(name);
|
|
|
|
head->connector_id = connector_id;
|
|
head->backend = backend;
|
|
|
|
head->backlight = backlight_init(drm_device, connector->connector_type);
|
|
|
|
if (drm_head_assign_connector_info(head, connector) < 0)
|
|
goto err_init;
|
|
|
|
if (head->connector->connector_type == DRM_MODE_CONNECTOR_LVDS ||
|
|
head->connector->connector_type == DRM_MODE_CONNECTOR_eDP)
|
|
weston_head_set_internal(&head->base);
|
|
|
|
if (drm_head_read_current_setup(head, backend) < 0) {
|
|
weston_log("Failed to retrieve current mode from connector %d.\n",
|
|
head->connector_id);
|
|
/* Not fatal. */
|
|
}
|
|
|
|
weston_compositor_add_head(backend->compositor, &head->base);
|
|
drm_head_log_info(head, "found");
|
|
|
|
return head;
|
|
|
|
err_init:
|
|
weston_head_release(&head->base);
|
|
|
|
err_alloc:
|
|
if (connector)
|
|
drmModeFreeConnector(connector);
|
|
|
|
free(head);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
drm_head_destroy(struct drm_head *head)
|
|
{
|
|
weston_head_release(&head->base);
|
|
|
|
drm_property_info_free(head->props_conn, WDRM_CONNECTOR__COUNT);
|
|
drmModeFreeConnector(head->connector);
|
|
|
|
if (head->backlight)
|
|
backlight_destroy(head->backlight);
|
|
|
|
free(head);
|
|
}
|
|
|
|
/**
|
|
* Create a Weston output structure
|
|
*
|
|
* Create an "empty" drm_output. This is the implementation of
|
|
* weston_backend::create_output.
|
|
*
|
|
* Creating an output is usually followed by drm_output_attach_head()
|
|
* and drm_output_enable() to make use of it.
|
|
*
|
|
* @param compositor The compositor instance.
|
|
* @param name Name for the new output.
|
|
* @returns The output, or NULL on failure.
|
|
*/
|
|
static struct weston_output *
|
|
drm_output_create(struct weston_compositor *compositor, const char *name)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_output *output;
|
|
|
|
output = zalloc(sizeof *output);
|
|
if (output == NULL)
|
|
return NULL;
|
|
|
|
output->backend = b;
|
|
output->gbm_bo_flags = GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING;
|
|
|
|
weston_output_init(&output->base, compositor, name);
|
|
|
|
output->base.enable = drm_output_enable;
|
|
output->base.destroy = drm_output_destroy;
|
|
output->base.disable = drm_output_disable;
|
|
output->base.attach_head = drm_output_attach_head;
|
|
output->base.detach_head = drm_output_detach_head;
|
|
|
|
output->destroy_pending = 0;
|
|
output->disable_pending = 0;
|
|
|
|
output->state_cur = drm_output_state_alloc(output, NULL);
|
|
|
|
weston_compositor_add_pending_output(&output->base, b->compositor);
|
|
|
|
return &output->base;
|
|
}
|
|
|
|
static int
|
|
drm_backend_create_heads(struct drm_backend *b, struct udev_device *drm_device)
|
|
{
|
|
struct drm_head *head;
|
|
drmModeRes *resources;
|
|
int i;
|
|
|
|
resources = drmModeGetResources(b->drm.fd);
|
|
if (!resources) {
|
|
weston_log("drmModeGetResources failed\n");
|
|
return -1;
|
|
}
|
|
|
|
b->min_width = resources->min_width;
|
|
b->max_width = resources->max_width;
|
|
b->min_height = resources->min_height;
|
|
b->max_height = resources->max_height;
|
|
|
|
for (i = 0; i < resources->count_connectors; i++) {
|
|
uint32_t connector_id = resources->connectors[i];
|
|
|
|
head = drm_head_create(b, connector_id, drm_device);
|
|
if (!head) {
|
|
weston_log("DRM: failed to create head for connector %d.\n",
|
|
connector_id);
|
|
}
|
|
}
|
|
|
|
drm_backend_update_unused_outputs(b, resources);
|
|
|
|
drmModeFreeResources(resources);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_backend_update_heads(struct drm_backend *b, struct udev_device *drm_device)
|
|
{
|
|
drmModeRes *resources;
|
|
struct weston_head *base, *next;
|
|
struct drm_head *head;
|
|
int i;
|
|
|
|
resources = drmModeGetResources(b->drm.fd);
|
|
if (!resources) {
|
|
weston_log("drmModeGetResources failed\n");
|
|
return;
|
|
}
|
|
|
|
/* collect new connectors that have appeared, e.g. MST */
|
|
for (i = 0; i < resources->count_connectors; i++) {
|
|
uint32_t connector_id = resources->connectors[i];
|
|
|
|
head = drm_head_find_by_connector(b, connector_id);
|
|
if (head) {
|
|
drm_head_update_info(head);
|
|
} else {
|
|
head = drm_head_create(b, connector_id, drm_device);
|
|
if (!head)
|
|
weston_log("DRM: failed to create head for hot-added connector %d.\n",
|
|
connector_id);
|
|
}
|
|
}
|
|
|
|
/* Remove connectors that have disappeared. */
|
|
wl_list_for_each_safe(base, next,
|
|
&b->compositor->head_list, compositor_link) {
|
|
bool removed = true;
|
|
|
|
head = to_drm_head(base);
|
|
|
|
for (i = 0; i < resources->count_connectors; i++) {
|
|
if (resources->connectors[i] == head->connector_id) {
|
|
removed = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!removed)
|
|
continue;
|
|
|
|
weston_log("DRM: head '%s' (connector %d) disappeared.\n",
|
|
head->base.name, head->connector_id);
|
|
drm_head_destroy(head);
|
|
}
|
|
|
|
drm_backend_update_unused_outputs(b, resources);
|
|
|
|
drmModeFreeResources(resources);
|
|
}
|
|
|
|
static int
|
|
udev_event_is_hotplug(struct drm_backend *b, struct udev_device *device)
|
|
{
|
|
const char *sysnum;
|
|
const char *val;
|
|
|
|
sysnum = udev_device_get_sysnum(device);
|
|
if (!sysnum || atoi(sysnum) != b->drm.id)
|
|
return 0;
|
|
|
|
val = udev_device_get_property_value(device, "HOTPLUG");
|
|
if (!val)
|
|
return 0;
|
|
|
|
return strcmp(val, "1") == 0;
|
|
}
|
|
|
|
static int
|
|
udev_drm_event(int fd, uint32_t mask, void *data)
|
|
{
|
|
struct drm_backend *b = data;
|
|
struct udev_device *event;
|
|
|
|
event = udev_monitor_receive_device(b->udev_monitor);
|
|
|
|
if (udev_event_is_hotplug(b, event))
|
|
drm_backend_update_heads(b, event);
|
|
|
|
udev_device_unref(event);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
drm_destroy(struct weston_compositor *ec)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(ec);
|
|
struct weston_head *base, *next;
|
|
|
|
udev_input_destroy(&b->input);
|
|
|
|
wl_event_source_remove(b->udev_drm_source);
|
|
wl_event_source_remove(b->drm_source);
|
|
|
|
b->shutting_down = true;
|
|
|
|
destroy_sprites(b);
|
|
|
|
weston_debug_scope_destroy(b->debug);
|
|
b->debug = NULL;
|
|
weston_compositor_shutdown(ec);
|
|
|
|
wl_list_for_each_safe(base, next, &ec->head_list, compositor_link)
|
|
drm_head_destroy(to_drm_head(base));
|
|
|
|
if (b->gbm)
|
|
gbm_device_destroy(b->gbm);
|
|
|
|
udev_monitor_unref(b->udev_monitor);
|
|
udev_unref(b->udev);
|
|
|
|
weston_launcher_destroy(ec->launcher);
|
|
|
|
wl_array_release(&b->unused_crtcs);
|
|
|
|
close(b->drm.fd);
|
|
free(b->drm.filename);
|
|
free(b);
|
|
}
|
|
|
|
static void
|
|
session_notify(struct wl_listener *listener, void *data)
|
|
{
|
|
struct weston_compositor *compositor = data;
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_plane *plane;
|
|
struct drm_output *output;
|
|
|
|
if (compositor->session_active) {
|
|
weston_log("activating session\n");
|
|
weston_compositor_wake(compositor);
|
|
weston_compositor_damage_all(compositor);
|
|
b->state_invalid = true;
|
|
udev_input_enable(&b->input);
|
|
} else {
|
|
weston_log("deactivating session\n");
|
|
udev_input_disable(&b->input);
|
|
|
|
weston_compositor_offscreen(compositor);
|
|
|
|
/* If we have a repaint scheduled (either from a
|
|
* pending pageflip or the idle handler), make sure we
|
|
* cancel that so we don't try to pageflip when we're
|
|
* vt switched away. The OFFSCREEN state will prevent
|
|
* further attempts at repainting. When we switch
|
|
* back, we schedule a repaint, which will process
|
|
* pending frame callbacks. */
|
|
|
|
wl_list_for_each(output, &compositor->output_list, base.link) {
|
|
output->base.repaint_needed = false;
|
|
if (output->cursor_plane)
|
|
drmModeSetCursor(b->drm.fd, output->crtc_id,
|
|
0, 0, 0);
|
|
}
|
|
|
|
output = container_of(compositor->output_list.next,
|
|
struct drm_output, base.link);
|
|
|
|
wl_list_for_each(plane, &b->plane_list, link) {
|
|
if (plane->type != WDRM_PLANE_TYPE_OVERLAY)
|
|
continue;
|
|
|
|
drmModeSetPlane(b->drm.fd,
|
|
plane->plane_id,
|
|
output->crtc_id, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determines whether or not a device is capable of modesetting. If successful,
|
|
* sets b->drm.fd and b->drm.filename to the opened device.
|
|
*/
|
|
static bool
|
|
drm_device_is_kms(struct drm_backend *b, struct udev_device *device)
|
|
{
|
|
const char *filename = udev_device_get_devnode(device);
|
|
const char *sysnum = udev_device_get_sysnum(device);
|
|
drmModeRes *res;
|
|
int id = -1, fd;
|
|
|
|
if (!filename)
|
|
return false;
|
|
|
|
fd = weston_launcher_open(b->compositor->launcher, filename, O_RDWR);
|
|
if (fd < 0)
|
|
return false;
|
|
|
|
res = drmModeGetResources(fd);
|
|
if (!res)
|
|
goto out_fd;
|
|
|
|
if (res->count_crtcs <= 0 || res->count_connectors <= 0 ||
|
|
res->count_encoders <= 0)
|
|
goto out_res;
|
|
|
|
if (sysnum)
|
|
id = atoi(sysnum);
|
|
if (!sysnum || id < 0) {
|
|
weston_log("couldn't get sysnum for device %s\n", filename);
|
|
goto out_res;
|
|
}
|
|
|
|
/* We can be called successfully on multiple devices; if we have,
|
|
* clean up old entries. */
|
|
if (b->drm.fd >= 0)
|
|
weston_launcher_close(b->compositor->launcher, b->drm.fd);
|
|
free(b->drm.filename);
|
|
|
|
b->drm.fd = fd;
|
|
b->drm.id = id;
|
|
b->drm.filename = strdup(filename);
|
|
|
|
drmModeFreeResources(res);
|
|
|
|
return true;
|
|
|
|
out_res:
|
|
drmModeFreeResources(res);
|
|
out_fd:
|
|
weston_launcher_close(b->compositor->launcher, fd);
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Find primary GPU
|
|
* Some systems may have multiple DRM devices attached to a single seat. This
|
|
* function loops over all devices and tries to find a PCI device with the
|
|
* boot_vga sysfs attribute set to 1.
|
|
* If no such device is found, the first DRM device reported by udev is used.
|
|
* Devices are also vetted to make sure they are are capable of modesetting,
|
|
* rather than pure render nodes (GPU with no display), or pure
|
|
* memory-allocation devices (VGEM).
|
|
*/
|
|
static struct udev_device*
|
|
find_primary_gpu(struct drm_backend *b, const char *seat)
|
|
{
|
|
struct udev_enumerate *e;
|
|
struct udev_list_entry *entry;
|
|
const char *path, *device_seat, *id;
|
|
struct udev_device *device, *drm_device, *pci;
|
|
|
|
e = udev_enumerate_new(b->udev);
|
|
udev_enumerate_add_match_subsystem(e, "drm");
|
|
udev_enumerate_add_match_sysname(e, "card[0-9]*");
|
|
|
|
udev_enumerate_scan_devices(e);
|
|
drm_device = NULL;
|
|
udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
|
|
bool is_boot_vga = false;
|
|
|
|
path = udev_list_entry_get_name(entry);
|
|
device = udev_device_new_from_syspath(b->udev, path);
|
|
if (!device)
|
|
continue;
|
|
device_seat = udev_device_get_property_value(device, "ID_SEAT");
|
|
if (!device_seat)
|
|
device_seat = default_seat;
|
|
if (strcmp(device_seat, seat)) {
|
|
udev_device_unref(device);
|
|
continue;
|
|
}
|
|
|
|
pci = udev_device_get_parent_with_subsystem_devtype(device,
|
|
"pci", NULL);
|
|
if (pci) {
|
|
id = udev_device_get_sysattr_value(pci, "boot_vga");
|
|
if (id && !strcmp(id, "1"))
|
|
is_boot_vga = true;
|
|
}
|
|
|
|
/* If we already have a modesetting-capable device, and this
|
|
* device isn't our boot-VGA device, we aren't going to use
|
|
* it. */
|
|
if (!is_boot_vga && drm_device) {
|
|
udev_device_unref(device);
|
|
continue;
|
|
}
|
|
|
|
/* Make sure this device is actually capable of modesetting;
|
|
* if this call succeeds, b->drm.{fd,filename} will be set,
|
|
* and any old values freed. */
|
|
if (!drm_device_is_kms(b, device)) {
|
|
udev_device_unref(device);
|
|
continue;
|
|
}
|
|
|
|
/* There can only be one boot_vga device, and we try to use it
|
|
* at all costs. */
|
|
if (is_boot_vga) {
|
|
if (drm_device)
|
|
udev_device_unref(drm_device);
|
|
drm_device = device;
|
|
break;
|
|
}
|
|
|
|
/* Per the (!is_boot_vga && drm_device) test above, we only
|
|
* trump existing saved devices with boot-VGA devices, so if
|
|
* we end up here, this must be the first device we've seen. */
|
|
assert(!drm_device);
|
|
drm_device = device;
|
|
}
|
|
|
|
/* If we're returning a device to use, we must have an open FD for
|
|
* it. */
|
|
assert(!!drm_device == (b->drm.fd >= 0));
|
|
|
|
udev_enumerate_unref(e);
|
|
return drm_device;
|
|
}
|
|
|
|
static struct udev_device *
|
|
open_specific_drm_device(struct drm_backend *b, const char *name)
|
|
{
|
|
struct udev_device *device;
|
|
|
|
device = udev_device_new_from_subsystem_sysname(b->udev, "drm", name);
|
|
if (!device) {
|
|
weston_log("ERROR: could not open DRM device '%s'\n", name);
|
|
return NULL;
|
|
}
|
|
|
|
if (!drm_device_is_kms(b, device)) {
|
|
udev_device_unref(device);
|
|
weston_log("ERROR: DRM device '%s' is not a KMS device.\n", name);
|
|
return NULL;
|
|
}
|
|
|
|
/* If we're returning a device to use, we must have an open FD for
|
|
* it. */
|
|
assert(b->drm.fd >= 0);
|
|
|
|
return device;
|
|
}
|
|
|
|
static void
|
|
planes_binding(struct weston_keyboard *keyboard, const struct timespec *time,
|
|
uint32_t key, void *data)
|
|
{
|
|
struct drm_backend *b = data;
|
|
|
|
switch (key) {
|
|
case KEY_C:
|
|
b->cursors_are_broken ^= 1;
|
|
break;
|
|
case KEY_V:
|
|
b->sprites_are_broken ^= 1;
|
|
break;
|
|
case KEY_O:
|
|
b->sprites_hidden ^= 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifdef BUILD_VAAPI_RECORDER
|
|
static void
|
|
recorder_destroy(struct drm_output *output)
|
|
{
|
|
vaapi_recorder_destroy(output->recorder);
|
|
output->recorder = NULL;
|
|
|
|
output->base.disable_planes--;
|
|
|
|
wl_list_remove(&output->recorder_frame_listener.link);
|
|
weston_log("[libva recorder] done\n");
|
|
}
|
|
|
|
static void
|
|
recorder_frame_notify(struct wl_listener *listener, void *data)
|
|
{
|
|
struct drm_output *output;
|
|
struct drm_backend *b;
|
|
int fd, ret;
|
|
|
|
output = container_of(listener, struct drm_output,
|
|
recorder_frame_listener);
|
|
b = to_drm_backend(output->base.compositor);
|
|
|
|
if (!output->recorder)
|
|
return;
|
|
|
|
ret = drmPrimeHandleToFD(b->drm.fd,
|
|
output->scanout_plane->state_cur->fb->handles[0],
|
|
DRM_CLOEXEC, &fd);
|
|
if (ret) {
|
|
weston_log("[libva recorder] "
|
|
"failed to create prime fd for front buffer\n");
|
|
return;
|
|
}
|
|
|
|
ret = vaapi_recorder_frame(output->recorder, fd,
|
|
output->scanout_plane->state_cur->fb->strides[0]);
|
|
if (ret < 0) {
|
|
weston_log("[libva recorder] aborted: %m\n");
|
|
recorder_destroy(output);
|
|
}
|
|
}
|
|
|
|
static void *
|
|
create_recorder(struct drm_backend *b, int width, int height,
|
|
const char *filename)
|
|
{
|
|
int fd;
|
|
drm_magic_t magic;
|
|
|
|
fd = open(b->drm.filename, O_RDWR | O_CLOEXEC);
|
|
if (fd < 0)
|
|
return NULL;
|
|
|
|
drmGetMagic(fd, &magic);
|
|
drmAuthMagic(b->drm.fd, magic);
|
|
|
|
return vaapi_recorder_create(fd, width, height, filename);
|
|
}
|
|
|
|
static void
|
|
recorder_binding(struct weston_keyboard *keyboard, const struct timespec *time,
|
|
uint32_t key, void *data)
|
|
{
|
|
struct drm_backend *b = data;
|
|
struct drm_output *output;
|
|
int width, height;
|
|
|
|
output = container_of(b->compositor->output_list.next,
|
|
struct drm_output, base.link);
|
|
|
|
if (!output->recorder) {
|
|
if (output->gbm_format != GBM_FORMAT_XRGB8888) {
|
|
weston_log("failed to start vaapi recorder: "
|
|
"output format not supported\n");
|
|
return;
|
|
}
|
|
|
|
width = output->base.current_mode->width;
|
|
height = output->base.current_mode->height;
|
|
|
|
output->recorder =
|
|
create_recorder(b, width, height, "capture.h264");
|
|
if (!output->recorder) {
|
|
weston_log("failed to create vaapi recorder\n");
|
|
return;
|
|
}
|
|
|
|
output->base.disable_planes++;
|
|
|
|
output->recorder_frame_listener.notify = recorder_frame_notify;
|
|
wl_signal_add(&output->base.frame_signal,
|
|
&output->recorder_frame_listener);
|
|
|
|
weston_output_schedule_repaint(&output->base);
|
|
|
|
weston_log("[libva recorder] initialized\n");
|
|
} else {
|
|
recorder_destroy(output);
|
|
}
|
|
}
|
|
#else
|
|
static void
|
|
recorder_binding(struct weston_keyboard *keyboard, const struct timespec *time,
|
|
uint32_t key, void *data)
|
|
{
|
|
weston_log("Compiled without libva support\n");
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
switch_to_gl_renderer(struct drm_backend *b)
|
|
{
|
|
struct drm_output *output;
|
|
bool dmabuf_support_inited;
|
|
|
|
if (!b->use_pixman)
|
|
return;
|
|
|
|
dmabuf_support_inited = !!b->compositor->renderer->import_dmabuf;
|
|
|
|
weston_log("Switching to GL renderer\n");
|
|
|
|
b->gbm = create_gbm_device(b->drm.fd);
|
|
if (!b->gbm) {
|
|
weston_log("Failed to create gbm device. "
|
|
"Aborting renderer switch\n");
|
|
return;
|
|
}
|
|
|
|
wl_list_for_each(output, &b->compositor->output_list, base.link)
|
|
pixman_renderer_output_destroy(&output->base);
|
|
|
|
b->compositor->renderer->destroy(b->compositor);
|
|
|
|
if (drm_backend_create_gl_renderer(b) < 0) {
|
|
gbm_device_destroy(b->gbm);
|
|
weston_log("Failed to create GL renderer. Quitting.\n");
|
|
/* FIXME: we need a function to shutdown cleanly */
|
|
assert(0);
|
|
}
|
|
|
|
wl_list_for_each(output, &b->compositor->output_list, base.link)
|
|
drm_output_init_egl(output, b);
|
|
|
|
b->use_pixman = 0;
|
|
|
|
if (!dmabuf_support_inited && b->compositor->renderer->import_dmabuf) {
|
|
if (linux_dmabuf_setup(b->compositor) < 0)
|
|
weston_log("Error: initializing dmabuf "
|
|
"support failed.\n");
|
|
}
|
|
}
|
|
|
|
static void
|
|
renderer_switch_binding(struct weston_keyboard *keyboard,
|
|
const struct timespec *time, uint32_t key, void *data)
|
|
{
|
|
struct drm_backend *b =
|
|
to_drm_backend(keyboard->seat->compositor);
|
|
|
|
switch_to_gl_renderer(b);
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_start_repaint_loop(struct weston_output *output_base)
|
|
{
|
|
weston_output_finish_frame(output_base, NULL,
|
|
WP_PRESENTATION_FEEDBACK_INVALID);
|
|
}
|
|
|
|
static int
|
|
drm_virtual_output_submit_frame(struct drm_output *output,
|
|
struct drm_fb *fb)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
int fd, ret;
|
|
|
|
assert(fb->num_planes == 1);
|
|
ret = drmPrimeHandleToFD(b->drm.fd, fb->handles[0], DRM_CLOEXEC, &fd);
|
|
if (ret) {
|
|
weston_log("drmPrimeHandleFD failed, errno=%d\n", errno);
|
|
return -1;
|
|
}
|
|
|
|
drm_fb_ref(fb);
|
|
ret = output->virtual_submit_frame(&output->base, fd, fb->strides[0],
|
|
fb);
|
|
if (ret < 0) {
|
|
drm_fb_unref(fb);
|
|
close(fd);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
drm_virtual_output_repaint(struct weston_output *output_base,
|
|
pixman_region32_t *damage,
|
|
void *repaint_data)
|
|
{
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
struct drm_output_state *state = NULL;
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_plane *scanout_plane = output->scanout_plane;
|
|
struct drm_plane_state *scanout_state;
|
|
|
|
assert(output->virtual);
|
|
|
|
if (output->disable_pending || output->destroy_pending)
|
|
goto err;
|
|
|
|
/* Drop frame if there isn't free buffers */
|
|
if (!gbm_surface_has_free_buffers(output->gbm_surface)) {
|
|
weston_log("%s: Drop frame!!\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
assert(!output->state_last);
|
|
|
|
/* If planes have been disabled in the core, we might not have
|
|
* hit assign_planes at all, so might not have valid output state
|
|
* here. */
|
|
state = drm_pending_state_get_output(pending_state, output);
|
|
if (!state)
|
|
state = drm_output_state_duplicate(output->state_cur,
|
|
pending_state,
|
|
DRM_OUTPUT_STATE_CLEAR_PLANES);
|
|
|
|
drm_output_render(state, damage);
|
|
scanout_state = drm_output_state_get_plane(state, scanout_plane);
|
|
if (!scanout_state || !scanout_state->fb)
|
|
goto err;
|
|
|
|
if (drm_virtual_output_submit_frame(output, scanout_state->fb) < 0)
|
|
goto err;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
drm_output_state_free(state);
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_deinit(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
|
|
drm_output_fini_egl(output);
|
|
|
|
drm_virtual_plane_destroy(output->scanout_plane);
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_destroy(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
|
|
assert(output->virtual);
|
|
|
|
if (output->base.enabled)
|
|
drm_virtual_output_deinit(&output->base);
|
|
|
|
weston_output_release(&output->base);
|
|
|
|
drm_output_state_free(output->state_cur);
|
|
|
|
free(output);
|
|
}
|
|
|
|
static int
|
|
drm_virtual_output_enable(struct weston_output *output_base)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
|
|
assert(output->virtual);
|
|
|
|
if (b->use_pixman) {
|
|
weston_log("Not support pixman renderer on Virtual output\n");
|
|
goto err;
|
|
}
|
|
|
|
if (!output->virtual_submit_frame) {
|
|
weston_log("The virtual_submit_frame hook is not set\n");
|
|
goto err;
|
|
}
|
|
|
|
output->scanout_plane = drm_virtual_plane_create(b, output);
|
|
if (!output->scanout_plane) {
|
|
weston_log("Failed to find primary plane for output %s\n",
|
|
output->base.name);
|
|
return -1;
|
|
}
|
|
|
|
if (drm_output_init_egl(output, b) < 0) {
|
|
weston_log("Failed to init output gl state\n");
|
|
goto err;
|
|
}
|
|
|
|
output->base.start_repaint_loop = drm_virtual_output_start_repaint_loop;
|
|
output->base.repaint = drm_virtual_output_repaint;
|
|
output->base.assign_planes = drm_assign_planes;
|
|
output->base.set_dpms = NULL;
|
|
output->base.switch_mode = NULL;
|
|
output->base.gamma_size = 0;
|
|
output->base.set_gamma = NULL;
|
|
|
|
weston_compositor_stack_plane(b->compositor,
|
|
&output->scanout_plane->base,
|
|
&b->compositor->primary_plane);
|
|
|
|
return 0;
|
|
err:
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
drm_virtual_output_disable(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
|
|
assert(output->virtual);
|
|
|
|
if (output->base.enabled)
|
|
drm_virtual_output_deinit(&output->base);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct weston_output *
|
|
drm_virtual_output_create(struct weston_compositor *c, char *name)
|
|
{
|
|
struct drm_output *output;
|
|
|
|
output = zalloc(sizeof *output);
|
|
if (!output)
|
|
return NULL;
|
|
|
|
output->virtual = true;
|
|
output->gbm_bo_flags = GBM_BO_USE_LINEAR | GBM_BO_USE_RENDERING;
|
|
|
|
weston_output_init(&output->base, c, name);
|
|
|
|
output->base.enable = drm_virtual_output_enable;
|
|
output->base.destroy = drm_virtual_output_destroy;
|
|
output->base.disable = drm_virtual_output_disable;
|
|
output->base.attach_head = NULL;
|
|
|
|
output->state_cur = drm_output_state_alloc(output, NULL);
|
|
|
|
weston_compositor_add_pending_output(&output->base, c);
|
|
|
|
return &output->base;
|
|
}
|
|
|
|
static uint32_t
|
|
drm_virtual_output_set_gbm_format(struct weston_output *base,
|
|
const char *gbm_format)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
if (parse_gbm_format(gbm_format, b->gbm_format, &output->gbm_format) == -1)
|
|
output->gbm_format = b->gbm_format;
|
|
|
|
return output->gbm_format;
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_set_submit_frame_cb(struct weston_output *output_base,
|
|
submit_frame_cb cb)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
|
|
output->virtual_submit_frame = cb;
|
|
}
|
|
|
|
static int
|
|
drm_virtual_output_get_fence_fd(struct weston_output *output_base)
|
|
{
|
|
return gl_renderer->create_fence_fd(output_base);
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_buffer_released(struct drm_fb *fb)
|
|
{
|
|
drm_fb_unref(fb);
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_finish_frame(struct weston_output *output_base,
|
|
struct timespec *stamp,
|
|
uint32_t presented_flags)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_plane_state *ps;
|
|
|
|
wl_list_for_each(ps, &output->state_cur->plane_list, link)
|
|
ps->complete = true;
|
|
|
|
drm_output_state_free(output->state_last);
|
|
output->state_last = NULL;
|
|
|
|
weston_output_finish_frame(&output->base, stamp, presented_flags);
|
|
|
|
/* We can't call this from frame_notify, because the output's
|
|
* repaint needed flag is cleared just after that */
|
|
if (output->recorder)
|
|
weston_output_schedule_repaint(&output->base);
|
|
}
|
|
|
|
static const struct weston_drm_output_api api = {
|
|
drm_output_set_mode,
|
|
drm_output_set_gbm_format,
|
|
drm_output_set_seat,
|
|
};
|
|
|
|
static const struct weston_drm_virtual_output_api virt_api = {
|
|
drm_virtual_output_create,
|
|
drm_virtual_output_set_gbm_format,
|
|
drm_virtual_output_set_submit_frame_cb,
|
|
drm_virtual_output_get_fence_fd,
|
|
drm_virtual_output_buffer_released,
|
|
drm_virtual_output_finish_frame
|
|
};
|
|
|
|
static struct drm_backend *
|
|
drm_backend_create(struct weston_compositor *compositor,
|
|
struct weston_drm_backend_config *config)
|
|
{
|
|
struct drm_backend *b;
|
|
struct udev_device *drm_device;
|
|
struct wl_event_loop *loop;
|
|
const char *seat_id = default_seat;
|
|
const char *session_seat;
|
|
int ret;
|
|
|
|
session_seat = getenv("XDG_SEAT");
|
|
if (session_seat)
|
|
seat_id = session_seat;
|
|
|
|
if (config->seat_id)
|
|
seat_id = config->seat_id;
|
|
|
|
weston_log("initializing drm backend\n");
|
|
|
|
b = zalloc(sizeof *b);
|
|
if (b == NULL)
|
|
return NULL;
|
|
|
|
b->state_invalid = true;
|
|
b->drm.fd = -1;
|
|
wl_array_init(&b->unused_crtcs);
|
|
|
|
b->compositor = compositor;
|
|
b->use_pixman = config->use_pixman;
|
|
b->pageflip_timeout = config->pageflip_timeout;
|
|
b->use_pixman_shadow = config->use_pixman_shadow;
|
|
|
|
b->debug = weston_compositor_add_debug_scope(compositor, "drm-backend",
|
|
"Debug messages from DRM/KMS backend\n",
|
|
NULL, NULL);
|
|
|
|
compositor->backend = &b->base;
|
|
|
|
if (parse_gbm_format(config->gbm_format, GBM_FORMAT_XRGB8888, &b->gbm_format) < 0)
|
|
goto err_compositor;
|
|
|
|
/* Check if we run drm-backend using weston-launch */
|
|
compositor->launcher = weston_launcher_connect(compositor, config->tty,
|
|
seat_id, true);
|
|
if (compositor->launcher == NULL) {
|
|
weston_log("fatal: drm backend should be run using "
|
|
"weston-launch binary, or your system should "
|
|
"provide the logind D-Bus API.\n");
|
|
goto err_compositor;
|
|
}
|
|
|
|
b->udev = udev_new();
|
|
if (b->udev == NULL) {
|
|
weston_log("failed to initialize udev context\n");
|
|
goto err_launcher;
|
|
}
|
|
|
|
b->session_listener.notify = session_notify;
|
|
wl_signal_add(&compositor->session_signal, &b->session_listener);
|
|
|
|
if (config->specific_device)
|
|
drm_device = open_specific_drm_device(b, config->specific_device);
|
|
else
|
|
drm_device = find_primary_gpu(b, seat_id);
|
|
if (drm_device == NULL) {
|
|
weston_log("no drm device found\n");
|
|
goto err_udev;
|
|
}
|
|
|
|
if (init_kms_caps(b) < 0) {
|
|
weston_log("failed to initialize kms\n");
|
|
goto err_udev_dev;
|
|
}
|
|
|
|
if (b->use_pixman) {
|
|
if (init_pixman(b) < 0) {
|
|
weston_log("failed to initialize pixman renderer\n");
|
|
goto err_udev_dev;
|
|
}
|
|
} else {
|
|
if (init_egl(b) < 0) {
|
|
weston_log("failed to initialize egl\n");
|
|
goto err_udev_dev;
|
|
}
|
|
}
|
|
|
|
b->base.destroy = drm_destroy;
|
|
b->base.repaint_begin = drm_repaint_begin;
|
|
b->base.repaint_flush = drm_repaint_flush;
|
|
b->base.repaint_cancel = drm_repaint_cancel;
|
|
b->base.create_output = drm_output_create;
|
|
|
|
weston_setup_vt_switch_bindings(compositor);
|
|
|
|
wl_list_init(&b->plane_list);
|
|
create_sprites(b);
|
|
|
|
if (udev_input_init(&b->input,
|
|
compositor, b->udev, seat_id,
|
|
config->configure_device) < 0) {
|
|
weston_log("failed to create input devices\n");
|
|
goto err_sprite;
|
|
}
|
|
|
|
if (drm_backend_create_heads(b, drm_device) < 0) {
|
|
weston_log("Failed to create heads for %s\n", b->drm.filename);
|
|
goto err_udev_input;
|
|
}
|
|
|
|
/* A this point we have some idea of whether or not we have a working
|
|
* cursor plane. */
|
|
if (!b->cursors_are_broken)
|
|
compositor->capabilities |= WESTON_CAP_CURSOR_PLANE;
|
|
|
|
loop = wl_display_get_event_loop(compositor->wl_display);
|
|
b->drm_source =
|
|
wl_event_loop_add_fd(loop, b->drm.fd,
|
|
WL_EVENT_READABLE, on_drm_input, b);
|
|
|
|
b->udev_monitor = udev_monitor_new_from_netlink(b->udev, "udev");
|
|
if (b->udev_monitor == NULL) {
|
|
weston_log("failed to initialize udev monitor\n");
|
|
goto err_drm_source;
|
|
}
|
|
udev_monitor_filter_add_match_subsystem_devtype(b->udev_monitor,
|
|
"drm", NULL);
|
|
b->udev_drm_source =
|
|
wl_event_loop_add_fd(loop,
|
|
udev_monitor_get_fd(b->udev_monitor),
|
|
WL_EVENT_READABLE, udev_drm_event, b);
|
|
|
|
if (udev_monitor_enable_receiving(b->udev_monitor) < 0) {
|
|
weston_log("failed to enable udev-monitor receiving\n");
|
|
goto err_udev_monitor;
|
|
}
|
|
|
|
udev_device_unref(drm_device);
|
|
|
|
weston_compositor_add_debug_binding(compositor, KEY_O,
|
|
planes_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_C,
|
|
planes_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_V,
|
|
planes_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_Q,
|
|
recorder_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_W,
|
|
renderer_switch_binding, b);
|
|
|
|
if (compositor->renderer->import_dmabuf) {
|
|
if (linux_dmabuf_setup(compositor) < 0)
|
|
weston_log("Error: initializing dmabuf "
|
|
"support failed.\n");
|
|
}
|
|
|
|
ret = weston_plugin_api_register(compositor, WESTON_DRM_OUTPUT_API_NAME,
|
|
&api, sizeof(api));
|
|
|
|
if (ret < 0) {
|
|
weston_log("Failed to register output API.\n");
|
|
goto err_udev_monitor;
|
|
}
|
|
|
|
ret = weston_plugin_api_register(compositor,
|
|
WESTON_DRM_VIRTUAL_OUTPUT_API_NAME,
|
|
&virt_api, sizeof(virt_api));
|
|
if (ret < 0) {
|
|
weston_log("Failed to register virtual output API.\n");
|
|
goto err_udev_monitor;
|
|
}
|
|
|
|
return b;
|
|
|
|
err_udev_monitor:
|
|
wl_event_source_remove(b->udev_drm_source);
|
|
udev_monitor_unref(b->udev_monitor);
|
|
err_drm_source:
|
|
wl_event_source_remove(b->drm_source);
|
|
err_udev_input:
|
|
udev_input_destroy(&b->input);
|
|
err_sprite:
|
|
if (b->gbm)
|
|
gbm_device_destroy(b->gbm);
|
|
destroy_sprites(b);
|
|
err_udev_dev:
|
|
udev_device_unref(drm_device);
|
|
err_launcher:
|
|
weston_launcher_destroy(compositor->launcher);
|
|
err_udev:
|
|
udev_unref(b->udev);
|
|
err_compositor:
|
|
weston_compositor_shutdown(compositor);
|
|
free(b);
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
config_init_to_defaults(struct weston_drm_backend_config *config)
|
|
{
|
|
config->use_pixman_shadow = true;
|
|
}
|
|
|
|
WL_EXPORT int
|
|
weston_backend_init(struct weston_compositor *compositor,
|
|
struct weston_backend_config *config_base)
|
|
{
|
|
struct drm_backend *b;
|
|
struct weston_drm_backend_config config = {{ 0, }};
|
|
|
|
if (config_base == NULL ||
|
|
config_base->struct_version != WESTON_DRM_BACKEND_CONFIG_VERSION ||
|
|
config_base->struct_size > sizeof(struct weston_drm_backend_config)) {
|
|
weston_log("drm backend config structure is invalid\n");
|
|
return -1;
|
|
}
|
|
|
|
config_init_to_defaults(&config);
|
|
memcpy(&config, config_base, config_base->struct_size);
|
|
|
|
b = drm_backend_create(compositor, &config);
|
|
if (b == NULL)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|