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1086 lines
36 KiB
1086 lines
36 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 <xf86drm.h>
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#include <xf86drmMode.h>
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#include <libweston/libweston.h>
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#include <libweston/backend-drm.h>
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#include <libweston/pixel-formats.h>
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#include "drm-internal.h"
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#include "color.h"
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#include "linux-dmabuf.h"
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#include "presentation-time-server-protocol.h"
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#include "linux-dmabuf-unstable-v1-server-protocol.h"
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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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static const char *const drm_output_propose_state_mode_as_string[] = {
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[DRM_OUTPUT_PROPOSE_STATE_MIXED] = "mixed state",
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[DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY] = "render-only state",
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[DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY] = "plane-only state"
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};
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static const char *
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drm_propose_state_mode_to_string(enum drm_output_propose_state_mode mode)
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{
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if (mode < 0 || mode >= ARRAY_LENGTH(drm_output_propose_state_mode_as_string))
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return " unknown compositing mode";
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return drm_output_propose_state_mode_as_string[mode];
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}
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static bool
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drm_output_check_plane_has_view_assigned(struct drm_plane *plane,
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struct drm_output_state *output_state)
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{
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struct drm_plane_state *ps;
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wl_list_for_each(ps, &output_state->plane_list, link) {
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if (ps->plane == plane && ps->fb)
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return true;
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}
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return false;
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}
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static struct drm_plane_state *
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drm_output_try_view_on_plane(struct drm_plane *plane,
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struct drm_output_state *output_state,
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struct weston_view *ev,
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enum drm_output_propose_state_mode mode,
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struct drm_fb *fb, uint64_t zpos)
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{
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struct drm_output *output = output_state->output;
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struct weston_surface *surface = ev->surface;
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struct drm_device *device = output->device;
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struct drm_backend *b = device->backend;
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struct drm_plane_state *state = NULL;
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assert(!device->sprites_are_broken);
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assert(device->atomic_modeset);
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assert(fb);
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assert(mode == DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY ||
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(mode == DRM_OUTPUT_PROPOSE_STATE_MIXED &&
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plane->type == WDRM_PLANE_TYPE_OVERLAY));
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state = drm_output_state_get_plane(output_state, plane);
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/* we can't have a 'pending' framebuffer as never set one before reaching here */
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assert(!state->fb);
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state->output = output;
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if (!drm_plane_state_coords_for_view(state, ev, zpos)) {
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drm_debug(b, "\t\t\t\t[view] not placing view %p on plane: "
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"unsuitable transform\n", ev);
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goto out;
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}
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/* Should've been ensured by weston_view_matches_entire_output. */
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if (plane->type == WDRM_PLANE_TYPE_PRIMARY) {
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assert(state->dest_x == 0 && state->dest_y == 0 &&
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state->dest_w == (unsigned) output->base.current_mode->width &&
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state->dest_h == (unsigned) output->base.current_mode->height);
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}
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/* We hold one reference for the lifetime of this function; from
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* calling drm_fb_get_from_view() in drm_output_prepare_plane_view(),
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* so, we take another reference here to live within the state. */
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state->ev = ev;
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state->fb = drm_fb_ref(fb);
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state->in_fence_fd = ev->surface->acquire_fence_fd;
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/* In planes-only mode, we don't have an incremental state to
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* test against, so we just hope it'll work. */
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if (mode != DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY &&
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drm_pending_state_test(output_state->pending_state) != 0) {
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drm_debug(b, "\t\t\t[view] not placing view %p on plane %lu: "
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"atomic test failed\n",
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ev, (unsigned long) plane->plane_id);
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goto out;
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}
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drm_debug(b, "\t\t\t[view] provisionally placing view %p on plane %lu\n",
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ev, (unsigned long) plane->plane_id);
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/* Take a reference on the buffer so that we don't release it
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* back to the client until we're done with it; cursor buffers
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* don't require a reference since we copy them. */
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assert(state->fb_ref.buffer.buffer == NULL);
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assert(state->fb_ref.release.buffer_release == NULL);
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weston_buffer_reference(&state->fb_ref.buffer,
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surface->buffer_ref.buffer,
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BUFFER_MAY_BE_ACCESSED);
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weston_buffer_release_reference(&state->fb_ref.release,
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surface->buffer_release_ref.buffer_release);
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return state;
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out:
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drm_plane_state_put_back(state);
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return NULL;
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}
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#ifdef BUILD_DRM_GBM
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/**
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* Update the image for the current cursor surface
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*
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* @param plane_state DRM cursor plane state
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* @param ev Source view for cursor
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*/
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static void
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cursor_bo_update(struct drm_plane_state *plane_state, struct weston_view *ev)
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{
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struct drm_output *output = plane_state->output;
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struct drm_device *device = output->device;
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struct gbm_bo *bo = plane_state->fb->bo;
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struct weston_buffer *buffer = ev->surface->buffer_ref.buffer;
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uint32_t buf[device->cursor_width * device->cursor_height];
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int32_t stride;
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uint8_t *s;
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int i;
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assert(buffer && buffer->shm_buffer);
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assert(buffer->width <= device->cursor_width);
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assert(buffer->height <= device->cursor_height);
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memset(buf, 0, sizeof buf);
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stride = wl_shm_buffer_get_stride(buffer->shm_buffer);
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s = wl_shm_buffer_get_data(buffer->shm_buffer);
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wl_shm_buffer_begin_access(buffer->shm_buffer);
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for (i = 0; i < buffer->height; i++)
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memcpy(buf + i * device->cursor_width,
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s + i * stride,
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buffer->width * 4);
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wl_shm_buffer_end_access(buffer->shm_buffer);
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if (gbm_bo_write(bo, buf, sizeof buf) < 0)
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weston_log("failed update cursor: %s\n", strerror(errno));
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}
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static struct drm_plane_state *
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drm_output_prepare_cursor_view(struct drm_output_state *output_state,
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struct weston_view *ev, uint64_t zpos)
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{
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struct drm_output *output = output_state->output;
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struct drm_device *device = output->device;
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struct drm_backend *b = device->backend;
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struct drm_plane *plane = output->cursor_plane;
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struct drm_plane_state *plane_state;
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bool needs_update = false;
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const char *p_name = drm_output_get_plane_type_name(plane);
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assert(!device->cursors_are_broken);
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assert(plane);
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assert(plane->state_cur->complete);
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assert(!plane->state_cur->output || plane->state_cur->output == output);
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/* We use GBM to import SHM buffers. */
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assert(b->gbm);
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plane_state = drm_output_state_get_plane(output_state, plane);
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assert(!plane_state->fb);
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/* We can't scale with the legacy API, and we don't try to account for
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* simple cropping/translation in cursor_bo_update. */
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plane_state->output = output;
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if (!drm_plane_state_coords_for_view(plane_state, ev, zpos)) {
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drm_debug(b, "\t\t\t\t[%s] not placing view %p on %s: "
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"unsuitable transform\n", p_name, ev, p_name);
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goto err;
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}
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if (plane_state->src_x != 0 || plane_state->src_y != 0 ||
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plane_state->src_w > (unsigned) device->cursor_width << 16 ||
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plane_state->src_h > (unsigned) device->cursor_height << 16 ||
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plane_state->src_w != plane_state->dest_w << 16 ||
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plane_state->src_h != plane_state->dest_h << 16) {
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drm_debug(b, "\t\t\t\t[%s] not assigning view %p to %s plane "
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"(positioning requires cropping or scaling)\n",
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p_name, ev, p_name);
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goto err;
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}
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/* Since we're setting plane state up front, we need to work out
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* whether or not we need to upload a new cursor. We can't use the
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* plane damage, since the planes haven't actually been calculated
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* yet: instead try to figure it out directly. KMS cursor planes are
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* pretty unique here, in that they lie partway between a Weston plane
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* (direct scanout) and a renderer. */
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if (ev != output->cursor_view ||
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pixman_region32_not_empty(&ev->surface->damage)) {
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output->current_cursor++;
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output->current_cursor =
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output->current_cursor %
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ARRAY_LENGTH(output->gbm_cursor_fb);
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needs_update = true;
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}
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drm_output_set_cursor_view(output, ev);
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plane_state->ev = ev;
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plane_state->fb =
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drm_fb_ref(output->gbm_cursor_fb[output->current_cursor]);
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if (needs_update) {
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drm_debug(b, "\t\t\t\t[%s] copying new content to cursor BO\n", p_name);
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cursor_bo_update(plane_state, ev);
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}
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/* The cursor API is somewhat special: in cursor_bo_update(), we upload
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* a buffer which is always cursor_width x cursor_height, even if the
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* surface we want to promote is actually smaller than this. Manually
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* mangle the plane state to deal with this. */
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plane_state->src_w = device->cursor_width << 16;
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plane_state->src_h = device->cursor_height << 16;
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plane_state->dest_w = device->cursor_width;
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plane_state->dest_h = device->cursor_height;
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drm_debug(b, "\t\t\t\t[%s] provisionally assigned view %p to cursor\n",
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p_name, ev);
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return plane_state;
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err:
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drm_plane_state_put_back(plane_state);
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return NULL;
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}
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#else
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static struct drm_plane_state *
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drm_output_prepare_cursor_view(struct drm_output_state *output_state,
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struct weston_view *ev, uint64_t zpos)
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{
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return NULL;
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}
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#endif
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static void
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drm_output_check_zpos_plane_states(struct drm_output_state *state)
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{
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struct drm_plane_state *ps;
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wl_list_for_each(ps, &state->plane_list, link) {
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struct wl_list *next_node = ps->link.next;
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bool found_dup = false;
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/* skip any plane that is not enabled */
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if (!ps->fb)
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continue;
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assert(ps->zpos != DRM_PLANE_ZPOS_INVALID_PLANE);
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/* find another plane with the same zpos value */
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if (next_node == &state->plane_list)
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break;
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while (next_node && next_node != &state->plane_list) {
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struct drm_plane_state *ps_next;
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ps_next = container_of(next_node,
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struct drm_plane_state,
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link);
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if (ps->zpos == ps_next->zpos) {
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found_dup = true;
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break;
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}
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next_node = next_node->next;
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}
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/* this should never happen so exit hard in case
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* we screwed up that bad */
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assert(!found_dup);
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}
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}
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static bool
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dmabuf_feedback_maybe_update(struct drm_device *device, struct weston_view *ev,
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uint32_t try_view_on_plane_failure_reasons)
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{
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struct weston_dmabuf_feedback *dmabuf_feedback = ev->surface->dmabuf_feedback;
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struct weston_dmabuf_feedback_tranche *scanout_tranche;
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struct drm_backend *b = device->backend;
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dev_t scanout_dev = device->drm.devnum;
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uint32_t scanout_flags = ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_SCANOUT;
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uint32_t action_needed = ACTION_NEEDED_NONE;
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struct timespec current_time, delta_time;
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const time_t MAX_TIME_SECONDS = 2;
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|
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/* Find out what we need to do with the dma-buf feedback */
|
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if (try_view_on_plane_failure_reasons & FAILURE_REASONS_FORCE_RENDERER)
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action_needed |= ACTION_NEEDED_REMOVE_SCANOUT_TRANCHE;
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if (try_view_on_plane_failure_reasons &
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(FAILURE_REASONS_ADD_FB_FAILED |
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FAILURE_REASONS_FB_FORMAT_INCOMPATIBLE |
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FAILURE_REASONS_DMABUF_MODIFIER_INVALID |
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FAILURE_REASONS_GBM_BO_IMPORT_FAILED |
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FAILURE_REASONS_GBM_BO_GET_HANDLE_FAILED))
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action_needed |= ACTION_NEEDED_ADD_SCANOUT_TRANCHE;
|
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|
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assert(action_needed != (ACTION_NEEDED_REMOVE_SCANOUT_TRANCHE |
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ACTION_NEEDED_ADD_SCANOUT_TRANCHE));
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|
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/* Look for scanout tranche. If not found, add it but in disabled mode
|
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* (we still don't know if we'll have to send it to clients). This
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* simplifies the code. */
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scanout_tranche =
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weston_dmabuf_feedback_find_tranche(dmabuf_feedback, scanout_dev,
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scanout_flags, SCANOUT_PREF);
|
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if (!scanout_tranche) {
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scanout_tranche =
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weston_dmabuf_feedback_tranche_create(dmabuf_feedback,
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b->compositor->dmabuf_feedback_format_table,
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scanout_dev, scanout_flags,
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SCANOUT_PREF);
|
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scanout_tranche->active = false;
|
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}
|
|
|
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/* No actions needed, so disarm timer and return */
|
|
if (action_needed == ACTION_NEEDED_NONE ||
|
|
(action_needed == ACTION_NEEDED_ADD_SCANOUT_TRANCHE &&
|
|
scanout_tranche->active) ||
|
|
(action_needed == ACTION_NEEDED_REMOVE_SCANOUT_TRANCHE &&
|
|
!scanout_tranche->active)) {
|
|
dmabuf_feedback->action_needed = ACTION_NEEDED_NONE;
|
|
return false;
|
|
}
|
|
|
|
/* We hit this if:
|
|
*
|
|
* 1. timer is still off, or
|
|
* 2. the action needed when it was set to on does not match the most
|
|
* recent needed action we've detected.
|
|
*
|
|
* So we reset the timestamp, set the timer to on it with the most
|
|
* recent needed action, return and leave the timer running. */
|
|
if (dmabuf_feedback->action_needed == ACTION_NEEDED_NONE ||
|
|
dmabuf_feedback->action_needed != action_needed) {
|
|
clock_gettime(CLOCK_MONOTONIC, &dmabuf_feedback->timer);
|
|
dmabuf_feedback->action_needed = action_needed;
|
|
return false;
|
|
/* Timer is already on and the action needed when it was set to on does
|
|
* not conflict with the most recent needed action we've detected. If
|
|
* more than MAX_TIME_SECONDS has passed, we need to resend the dma-buf
|
|
* feedback. Otherwise, return and leave the timer running. */
|
|
} else {
|
|
clock_gettime(CLOCK_MONOTONIC, ¤t_time);
|
|
delta_time.tv_sec = current_time.tv_sec -
|
|
dmabuf_feedback->timer.tv_sec;
|
|
if (delta_time.tv_sec < MAX_TIME_SECONDS)
|
|
return false;
|
|
}
|
|
|
|
/* If we got here it means that the timer has triggered, so we have
|
|
* pending actions with the dma-buf feedback. So we update and resend
|
|
* them. */
|
|
if (action_needed == ACTION_NEEDED_ADD_SCANOUT_TRANCHE)
|
|
scanout_tranche->active = true;
|
|
else if (action_needed == ACTION_NEEDED_REMOVE_SCANOUT_TRANCHE)
|
|
scanout_tranche->active = false;
|
|
else
|
|
assert(0);
|
|
|
|
drm_debug(b, "\t[repaint] Need to update and resend the "
|
|
"dma-buf feedback for surface of view %p\n", ev);
|
|
weston_dmabuf_feedback_send_all(dmabuf_feedback,
|
|
b->compositor->dmabuf_feedback_format_table);
|
|
|
|
/* Set the timer to off */
|
|
dmabuf_feedback->action_needed = ACTION_NEEDED_NONE;
|
|
|
|
return true;
|
|
}
|
|
|
|
static struct drm_plane_state *
|
|
drm_output_find_plane_for_view(struct drm_output_state *state,
|
|
struct weston_paint_node *pnode,
|
|
enum drm_output_propose_state_mode mode,
|
|
struct drm_plane_state *scanout_state,
|
|
uint64_t current_lowest_zpos)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct drm_device *device = output->device;
|
|
struct drm_backend *b = device->backend;
|
|
|
|
struct drm_plane_state *ps = NULL;
|
|
struct drm_plane *plane;
|
|
|
|
struct weston_view *ev = pnode->view;
|
|
struct weston_buffer *buffer;
|
|
struct drm_fb *fb = NULL;
|
|
|
|
bool view_matches_entire_output, scanout_has_view_assigned;
|
|
uint32_t possible_plane_mask = 0;
|
|
|
|
pnode->try_view_on_plane_failure_reasons = FAILURE_REASONS_NONE;
|
|
|
|
/* check view for valid buffer, doesn't make sense to even try */
|
|
if (!weston_view_has_valid_buffer(ev)) {
|
|
pnode->try_view_on_plane_failure_reasons |=
|
|
FAILURE_REASONS_FB_FORMAT_INCOMPATIBLE;
|
|
return NULL;
|
|
}
|
|
|
|
buffer = ev->surface->buffer_ref.buffer;
|
|
if (buffer->type == WESTON_BUFFER_SOLID) {
|
|
pnode->try_view_on_plane_failure_reasons |=
|
|
FAILURE_REASONS_FB_FORMAT_INCOMPATIBLE;
|
|
return NULL;
|
|
} else if (buffer->type == WESTON_BUFFER_SHM) {
|
|
if (!output->cursor_plane || device->cursors_are_broken) {
|
|
pnode->try_view_on_plane_failure_reasons |=
|
|
FAILURE_REASONS_FB_FORMAT_INCOMPATIBLE;
|
|
return NULL;
|
|
}
|
|
|
|
/* Even though this is a SHM buffer, pixel_format stores the
|
|
* format code as DRM FourCC */
|
|
if (buffer->pixel_format->format != DRM_FORMAT_ARGB8888) {
|
|
drm_debug(b, "\t\t\t\t[view] not placing view %p on "
|
|
"plane; SHM buffers must be ARGB8888 for "
|
|
"cursor view\n", ev);
|
|
pnode->try_view_on_plane_failure_reasons |=
|
|
FAILURE_REASONS_FB_FORMAT_INCOMPATIBLE;
|
|
return NULL;
|
|
}
|
|
|
|
if (buffer->width > device->cursor_width ||
|
|
buffer->height > device->cursor_height) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(buffer (%dx%d) too large for cursor plane)\n",
|
|
ev, buffer->width, buffer->height);
|
|
pnode->try_view_on_plane_failure_reasons |=
|
|
FAILURE_REASONS_FB_FORMAT_INCOMPATIBLE;
|
|
return NULL;
|
|
}
|
|
|
|
possible_plane_mask = (1 << output->cursor_plane->plane_idx);
|
|
} else {
|
|
if (mode == DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p "
|
|
"to plane: renderer-only mode\n", ev);
|
|
return NULL;
|
|
}
|
|
|
|
fb = drm_fb_get_from_view(state, ev,
|
|
&pnode->try_view_on_plane_failure_reasons);
|
|
if (!fb) {
|
|
drm_debug(b, "\t\t\t[view] couldn't get FB for view: 0x%lx\n",
|
|
(unsigned long) pnode->try_view_on_plane_failure_reasons);
|
|
return NULL;
|
|
}
|
|
|
|
possible_plane_mask = fb->plane_mask;
|
|
}
|
|
|
|
view_matches_entire_output =
|
|
weston_view_matches_output_entirely(ev, &output->base);
|
|
scanout_has_view_assigned =
|
|
drm_output_check_plane_has_view_assigned(output->scanout_plane,
|
|
state);
|
|
|
|
/* assemble a list with possible candidates */
|
|
wl_list_for_each(plane, &device->plane_list, link) {
|
|
const char *p_name = drm_output_get_plane_type_name(plane);
|
|
uint64_t zpos;
|
|
|
|
if (possible_plane_mask == 0)
|
|
break;
|
|
|
|
if (!(possible_plane_mask & (1 << plane->plane_idx)))
|
|
continue;
|
|
|
|
possible_plane_mask &= ~(1 << plane->plane_idx);
|
|
|
|
switch (plane->type) {
|
|
case WDRM_PLANE_TYPE_CURSOR:
|
|
assert(buffer->shm_buffer);
|
|
assert(plane == output->cursor_plane);
|
|
break;
|
|
case WDRM_PLANE_TYPE_PRIMARY:
|
|
assert(fb);
|
|
if (plane != output->scanout_plane)
|
|
continue;
|
|
if (mode != DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY)
|
|
continue;
|
|
if (!view_matches_entire_output)
|
|
continue;
|
|
break;
|
|
case WDRM_PLANE_TYPE_OVERLAY:
|
|
assert(fb);
|
|
assert(mode != DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY);
|
|
/* if the view covers the whole output, put it in the
|
|
* scanout plane, not overlay */
|
|
if (view_matches_entire_output &&
|
|
!scanout_has_view_assigned)
|
|
continue;
|
|
break;
|
|
default:
|
|
assert(false && "unknown plane type");
|
|
}
|
|
|
|
if (!drm_plane_is_available(plane, output))
|
|
continue;
|
|
|
|
if (drm_output_check_plane_has_view_assigned(plane, state)) {
|
|
drm_debug(b, "\t\t\t\t[plane] not trying plane %d: "
|
|
"another view already assigned\n",
|
|
plane->plane_id);
|
|
continue;
|
|
}
|
|
|
|
if (plane->zpos_min >= current_lowest_zpos) {
|
|
drm_debug(b, "\t\t\t\t[plane] not trying plane %d: "
|
|
"plane's minimum zpos (%"PRIu64") above "
|
|
"current lowest zpos (%"PRIu64")\n",
|
|
plane->plane_id, plane->zpos_min,
|
|
current_lowest_zpos);
|
|
continue;
|
|
}
|
|
|
|
/* If the surface buffer has an in-fence fd, but the plane doesn't
|
|
* support fences, we can't place the buffer on this plane. */
|
|
if (ev->surface->acquire_fence_fd >= 0 &&
|
|
plane->props[WDRM_PLANE_IN_FENCE_FD].prop_id == 0) {
|
|
drm_debug(b, "\t\t\t\t[%s] not placing view %p on %s: "
|
|
"no in-fence support\n", p_name, ev, p_name);
|
|
return NULL;
|
|
}
|
|
|
|
if (mode == DRM_OUTPUT_PROPOSE_STATE_MIXED) {
|
|
assert(scanout_state != NULL);
|
|
if (scanout_state->zpos >= plane->zpos_max) {
|
|
drm_debug(b, "\t\t\t\t[plane] not adding plane %d to "
|
|
"candidate list: primary's zpos "
|
|
"value (%"PRIu64") higher than "
|
|
"plane's maximum value (%"PRIu64")\n",
|
|
plane->plane_id, scanout_state->zpos,
|
|
plane->zpos_max);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (current_lowest_zpos == DRM_PLANE_ZPOS_INVALID_PLANE)
|
|
zpos = plane->zpos_max;
|
|
else
|
|
zpos = MIN(current_lowest_zpos - 1, plane->zpos_max);
|
|
|
|
drm_debug(b, "\t\t\t\t[plane] plane %d picked "
|
|
"from candidate list, type: %s\n",
|
|
plane->plane_id, p_name);
|
|
|
|
if (plane->type == WDRM_PLANE_TYPE_CURSOR) {
|
|
ps = drm_output_prepare_cursor_view(state, ev, zpos);
|
|
} else {
|
|
ps = drm_output_try_view_on_plane(plane, state, ev,
|
|
mode, fb, zpos);
|
|
}
|
|
|
|
if (ps) {
|
|
drm_debug(b, "\t\t\t\t[view] view %p has been placed to "
|
|
"%s plane with computed zpos %"PRIu64"\n",
|
|
ev, p_name, zpos);
|
|
break;
|
|
}
|
|
|
|
pnode->try_view_on_plane_failure_reasons |=
|
|
FAILURE_REASONS_PLANES_REJECTED;
|
|
}
|
|
|
|
if (!ps &&
|
|
pnode->try_view_on_plane_failure_reasons == FAILURE_REASONS_NONE) {
|
|
pnode->try_view_on_plane_failure_reasons |=
|
|
FAILURE_REASONS_NO_PLANES_AVAILABLE;
|
|
}
|
|
|
|
/* if we have a plane state, it has its own ref to the fb; if not then
|
|
* we drop ours here */
|
|
drm_fb_unref(fb);
|
|
return ps;
|
|
}
|
|
|
|
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_device *device = output->device;
|
|
struct drm_backend *b = device->backend;
|
|
struct weston_paint_node *pnode;
|
|
struct drm_output_state *state;
|
|
struct drm_plane_state *scanout_state = NULL;
|
|
|
|
pixman_region32_t renderer_region;
|
|
pixman_region32_t occluded_region;
|
|
|
|
bool renderer_ok = (mode != DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY);
|
|
int ret;
|
|
uint64_t current_lowest_zpos = DRM_PLANE_ZPOS_INVALID_PLANE;
|
|
|
|
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);
|
|
/* assign the primary the lowest zpos value */
|
|
scanout_state->zpos = plane->zpos_min;
|
|
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);
|
|
drm_debug(b, "\t\t[state] scanout will use for zpos %"PRIu64"\n",
|
|
scanout_state->zpos);
|
|
}
|
|
|
|
/* - renderer_region contains the total region which which will be
|
|
* covered by the renderer
|
|
* - occluded_region contains the total region which which will be
|
|
* covered by the renderer and hardware planes, where the view's
|
|
* visible-and-opaque region is added in both cases (the view's
|
|
* opaque region accumulates there for each view); it is being used
|
|
* to skip the view, if it is completely occluded; includes the
|
|
* situation where occluded_region covers entire output's region.
|
|
*/
|
|
pixman_region32_init(&renderer_region);
|
|
pixman_region32_init(&occluded_region);
|
|
|
|
wl_list_for_each(pnode, &output->base.paint_node_z_order_list,
|
|
z_order_link) {
|
|
struct weston_view *ev = pnode->view;
|
|
struct drm_plane_state *ps = NULL;
|
|
bool force_renderer = false;
|
|
pixman_region32_t clipped_view;
|
|
pixman_region32_t surface_overlap;
|
|
bool totally_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. */
|
|
/* TODO: turn this into assert once z_order_list is pruned. */
|
|
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;
|
|
}
|
|
|
|
/* Cannot show anything without a color transform. */
|
|
if (!pnode->surf_xform_valid) {
|
|
drm_debug(b, "\t\t\t\t[view] ignoring view %p "
|
|
"(color transform failed)\n", ev);
|
|
continue;
|
|
}
|
|
|
|
/* 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);
|
|
/* if the view is completely occluded then ignore that
|
|
* view; includes the case where occluded_region covers
|
|
* the entire output */
|
|
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;
|
|
}
|
|
|
|
/* 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 (!b->gbm) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(GBM not available)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
if (!weston_view_has_valid_buffer(ev)) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(no buffer available)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
/* We can support this with the 'CRTC background colour' property,
|
|
* if it is fullscreen (i.e. we disable the primary plane), and
|
|
* opaque (as it is only shown in the absence of any covering
|
|
* plane, not as a replacement for the primary plane per se). */
|
|
if (ev->surface->buffer_ref.buffer &&
|
|
ev->surface->buffer_ref.buffer->type == WESTON_BUFFER_SOLID) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(solid-colour surface)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
if (pnode->surf_xform.transform != NULL ||
|
|
!pnode->surf_xform.identity_pipeline) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(requires color transform)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
pixman_region32_fini(&surface_overlap);
|
|
|
|
/* In case of enforced mode of content-protection do not
|
|
* assign planes for a protected surface on an unsecured output.
|
|
*/
|
|
if (ev->surface->protection_mode == WESTON_SURFACE_PROTECTION_MODE_ENFORCED &&
|
|
ev->surface->desired_protection > output_base->current_protection) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(enforced protection mode on unsecured output)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
/* Now try to place it on a plane if we can. */
|
|
if (!force_renderer) {
|
|
drm_debug(b, "\t\t\t[plane] started with zpos %"PRIu64"\n",
|
|
current_lowest_zpos);
|
|
ps = drm_output_find_plane_for_view(state, pnode, mode,
|
|
scanout_state,
|
|
current_lowest_zpos);
|
|
} else {
|
|
/* We are forced to place the view in the renderer, set
|
|
* the failure reason accordingly. */
|
|
pnode->try_view_on_plane_failure_reasons =
|
|
FAILURE_REASONS_FORCE_RENDERER;
|
|
}
|
|
|
|
if (ps) {
|
|
current_lowest_zpos = ps->zpos;
|
|
drm_debug(b, "\t\t\t[plane] next zpos to use %"PRIu64"\n",
|
|
current_lowest_zpos);
|
|
} else if (!ps && !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;
|
|
} else if (!ps) {
|
|
/* clipped_view contains the area that's going to be
|
|
* visible on screen; add this to the renderer region */
|
|
pixman_region32_union(&renderer_region,
|
|
&renderer_region,
|
|
&clipped_view);
|
|
|
|
drm_debug(b, "\t\t\t\t[view] view %p will be placed "
|
|
"on the renderer\n", ev);
|
|
}
|
|
|
|
/* Opaque areas of our clipped view occlude areas behind it;
|
|
* however, anything not in the opaque region (which is the
|
|
* entire clipped area if the whole view is known to be
|
|
* opaque) does not necessarily occlude what's behind it, as
|
|
* it could be alpha-blended. */
|
|
if (!weston_view_is_opaque(ev, &clipped_view))
|
|
pixman_region32_intersect(&clipped_view,
|
|
&clipped_view,
|
|
&ev->transform.opaque);
|
|
pixman_region32_union(&occluded_region,
|
|
&occluded_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 if we have invalid zpos values, like duplicate(s) */
|
|
drm_output_check_zpos_plane_states(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;
|
|
}
|
|
|
|
void
|
|
drm_assign_planes(struct weston_output *output_base)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_device *device = output->device;
|
|
struct drm_backend *b = device->backend;
|
|
struct drm_pending_state *pending_state = device->repaint_data;
|
|
struct drm_output_state *state = NULL;
|
|
struct drm_plane_state *plane_state;
|
|
struct weston_paint_node *pnode;
|
|
struct weston_plane *primary = &output_base->compositor->primary_plane;
|
|
enum drm_output_propose_state_mode mode = DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY;
|
|
|
|
assert(output);
|
|
|
|
drm_debug(b, "\t[repaint] preparing state for output %s (%lu)\n",
|
|
output_base->name, (unsigned long) output_base->id);
|
|
|
|
if (!device->sprites_are_broken && !output->virtual && b->gbm) {
|
|
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(pnode, &output->base.paint_node_z_order_list,
|
|
z_order_link) {
|
|
struct weston_view *ev = pnode->view;
|
|
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. */
|
|
/* TODO: turn this into assert once z_order_list is pruned. */
|
|
if (!(ev->output_mask & (1u << output->base.id)))
|
|
continue;
|
|
|
|
/* Update dmabuf-feedback if needed */
|
|
if (ev->surface->dmabuf_feedback)
|
|
dmabuf_feedback_maybe_update(device, ev,
|
|
pnode->try_view_on_plane_failure_reasons);
|
|
pnode->try_view_on_plane_failure_reasons = FAILURE_REASONS_NONE;
|
|
|
|
/* Test whether this buffer can ever go into a plane:
|
|
* non-shm, or small enough to be a cursor.
|
|
*
|
|
* FIXME: Also, we should 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.
|
|
*/
|
|
ev->surface->keep_buffer = false;
|
|
if (weston_view_has_valid_buffer(ev)) {
|
|
struct weston_buffer *buffer =
|
|
ev->surface->buffer_ref.buffer;
|
|
if (buffer->type == WESTON_BUFFER_DMABUF ||
|
|
buffer->type == WESTON_BUFFER_RENDERER_OPAQUE)
|
|
ev->surface->keep_buffer = true;
|
|
else if (buffer->type == WESTON_BUFFER_SHM &&
|
|
(ev->surface->width <= device->cursor_width &&
|
|
ev->surface->height <= device->cursor_height))
|
|
ev->surface->keep_buffer = true;
|
|
}
|
|
|
|
/* 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)
|
|
drm_output_set_cursor_view(output, NULL);
|
|
}
|
|
}
|
|
|
|
static void
|
|
drm_output_handle_cursor_view_destroy(struct wl_listener *listener, void *data)
|
|
{
|
|
struct drm_output *output =
|
|
container_of(listener, struct drm_output,
|
|
cursor_view_destroy_listener);
|
|
|
|
drm_output_set_cursor_view(output, NULL);
|
|
}
|
|
|
|
/** Set the current cursor view used for an output.
|
|
*
|
|
* Ensure the stored value will be properly cleared if the view is destroyed.
|
|
* The stored cursor view helps avoid unnecessary uploads of cursor data to
|
|
* cursor plane buffer objects (see drm_output_prepare_cursor_view).
|
|
*/
|
|
void
|
|
drm_output_set_cursor_view(struct drm_output *output, struct weston_view *ev)
|
|
{
|
|
if (output->cursor_view == ev)
|
|
return;
|
|
|
|
if (output->cursor_view)
|
|
wl_list_remove(&output->cursor_view_destroy_listener.link);
|
|
|
|
output->cursor_view = ev;
|
|
|
|
if (ev) {
|
|
output->cursor_view_destroy_listener.notify =
|
|
drm_output_handle_cursor_view_destroy;
|
|
wl_signal_add(&ev->destroy_signal,
|
|
&output->cursor_view_destroy_listener);
|
|
}
|
|
}
|
|
|