backend-drm: move into new subdir
Move the DRM-backend into a new sub-directory to make it stand out from libweston core. This facilitates splitting drm.c into more files later. vaapi-recorder is used only by DRM-backend, move that too. libbacklight is used only by DRM-backend and a manual test program, and is moved as well. Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
This commit is contained in:
Pekka Paalanen
committed by
Daniel Stone
Daniel Stone
parent
644eb64a5d
commit
f0f37bcaa1
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,318 @@
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/*
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* libbacklight - userspace interface to Linux backlight control
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*
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* Copyright © 2012 Intel Corporation
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* Copyright 2010 Red Hat <mjg@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* 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
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Matthew Garrett <mjg@redhat.com>
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* Tiago Vignatti <vignatti@freedesktop.org>
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*/
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#include "config.h"
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#include "libbacklight.h"
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <linux/types.h>
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#include <dirent.h>
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#include <drm.h>
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#include <fcntl.h>
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#include <malloc.h>
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#include <string.h>
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#include <errno.h>
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#include "shared/string-helpers.h"
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static long backlight_get(struct backlight *backlight, char *node)
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{
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char buffer[100];
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char *path;
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int fd, value;
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long ret;
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if (asprintf(&path, "%s/%s", backlight->path, node) < 0)
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return -ENOMEM;
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fd = open(path, O_RDONLY);
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if (fd < 0) {
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ret = -1;
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goto out;
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}
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ret = read(fd, &buffer, sizeof(buffer));
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if (ret < 1) {
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ret = -1;
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goto out;
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}
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if (!safe_strtoint(buffer, &value)) {
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ret = -1;
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goto out;
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}
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ret = value;
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out:
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if (fd >= 0)
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close(fd);
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free(path);
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return ret;
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}
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long backlight_get_brightness(struct backlight *backlight)
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{
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return backlight_get(backlight, "brightness");
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}
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long backlight_get_max_brightness(struct backlight *backlight)
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{
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return backlight_get(backlight, "max_brightness");
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}
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long backlight_get_actual_brightness(struct backlight *backlight)
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{
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return backlight_get(backlight, "actual_brightness");
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}
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long backlight_set_brightness(struct backlight *backlight, long brightness)
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{
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char *path;
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char *buffer = NULL;
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int fd;
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long ret;
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if (asprintf(&path, "%s/%s", backlight->path, "brightness") < 0)
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return -ENOMEM;
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fd = open(path, O_RDWR);
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if (fd < 0) {
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ret = -1;
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goto out;
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}
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ret = read(fd, &buffer, sizeof(buffer));
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if (ret < 1) {
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ret = -1;
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goto out;
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}
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if (asprintf(&buffer, "%ld", brightness) < 0) {
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ret = -1;
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goto out;
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}
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ret = write(fd, buffer, strlen(buffer));
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if (ret < 0) {
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ret = -1;
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goto out;
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}
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ret = backlight_get_brightness(backlight);
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backlight->brightness = ret;
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out:
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free(buffer);
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free(path);
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if (fd >= 0)
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close(fd);
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return ret;
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}
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void backlight_destroy(struct backlight *backlight)
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{
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if (!backlight)
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return;
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if (backlight->path)
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free(backlight->path);
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free(backlight);
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}
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struct backlight *backlight_init(struct udev_device *drm_device,
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uint32_t connector_type)
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{
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const char *syspath = NULL;
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char *pci_name = NULL;
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char *chosen_path = NULL;
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char *path = NULL;
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DIR *backlights = NULL;
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struct dirent *entry;
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enum backlight_type type = 0;
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char buffer[100];
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struct backlight *backlight = NULL;
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int ret;
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if (!drm_device)
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return NULL;
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syspath = udev_device_get_syspath(drm_device);
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if (!syspath)
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return NULL;
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if (asprintf(&path, "%s/%s", syspath, "device") < 0)
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return NULL;
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ret = readlink(path, buffer, sizeof(buffer) - 1);
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free(path);
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if (ret < 0)
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return NULL;
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buffer[ret] = '\0';
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pci_name = basename(buffer);
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if (connector_type <= 0)
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return NULL;
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backlights = opendir("/sys/class/backlight");
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if (!backlights)
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return NULL;
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/* Find the "best" backlight for the device. Firmware
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interfaces are preferred over platform interfaces are
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preferred over raw interfaces. For raw interfaces we'll
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check if the device ID in the form of pci match, while
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for firmware interfaces we require the pci ID to
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match. It's assumed that platform interfaces always match,
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since we can't actually associate them with IDs.
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A further awkwardness is that, while it's theoretically
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possible for an ACPI interface to include support for
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changing the backlight of external devices, it's unlikely
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to ever be done. It's effectively impossible for a platform
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interface to do so. So if we get asked about anything that
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isn't LVDS or eDP, we pretty much have to require that the
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control be supplied via a raw interface */
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while ((entry = readdir(backlights))) {
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char *backlight_path;
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char *parent;
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enum backlight_type entry_type;
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int fd;
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if (entry->d_name[0] == '.')
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continue;
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if (asprintf(&backlight_path, "%s/%s", "/sys/class/backlight",
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entry->d_name) < 0)
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goto err;
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if (asprintf(&path, "%s/%s", backlight_path, "type") < 0) {
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free(backlight_path);
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goto err;
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}
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fd = open(path, O_RDONLY);
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if (fd < 0)
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goto out;
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ret = read (fd, &buffer, sizeof(buffer));
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close (fd);
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if (ret < 1)
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goto out;
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buffer[ret] = '\0';
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if (!strncmp(buffer, "raw\n", sizeof(buffer)))
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entry_type = BACKLIGHT_RAW;
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else if (!strncmp(buffer, "platform\n", sizeof(buffer)))
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entry_type = BACKLIGHT_PLATFORM;
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else if (!strncmp(buffer, "firmware\n", sizeof(buffer)))
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entry_type = BACKLIGHT_FIRMWARE;
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else
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goto out;
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if (connector_type != DRM_MODE_CONNECTOR_LVDS &&
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connector_type != DRM_MODE_CONNECTOR_eDP) {
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/* External displays are assumed to require
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gpu control at the moment */
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if (entry_type != BACKLIGHT_RAW)
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goto out;
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}
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free (path);
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if (asprintf(&path, "%s/%s", backlight_path, "device") < 0)
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goto err;
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ret = readlink(path, buffer, sizeof(buffer) - 1);
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if (ret < 0)
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goto out;
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buffer[ret] = '\0';
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parent = basename(buffer);
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/* Perform matching for raw and firmware backlights -
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platform backlights have to be assumed to match */
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if (entry_type == BACKLIGHT_RAW ||
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entry_type == BACKLIGHT_FIRMWARE) {
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if (!(pci_name && !strcmp(pci_name, parent)))
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goto out;
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}
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if (entry_type < type)
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goto out;
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type = entry_type;
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if (chosen_path)
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free(chosen_path);
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chosen_path = strdup(backlight_path);
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out:
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free(backlight_path);
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free(path);
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}
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if (!chosen_path)
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goto err;
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backlight = malloc(sizeof(struct backlight));
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if (!backlight)
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goto err;
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backlight->path = chosen_path;
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backlight->type = type;
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backlight->max_brightness = backlight_get_max_brightness(backlight);
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if (backlight->max_brightness < 0)
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goto err;
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backlight->brightness = backlight_get_actual_brightness(backlight);
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if (backlight->brightness < 0)
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goto err;
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closedir(backlights);
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return backlight;
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err:
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closedir(backlights);
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free (chosen_path);
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free (backlight);
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return NULL;
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}
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@@ -0,0 +1,79 @@
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/*
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* libbacklight - userspace interface to Linux backlight control
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*
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* Copyright © 2012 Intel Corporation
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* Copyright 2010 Red Hat <mjg@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
|
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* 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
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Matthew Garrett <mjg@redhat.com>
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* Tiago Vignatti <vignatti@freedesktop.org>
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*/
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#ifndef LIBBACKLIGHT_H
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#define LIBBACKLIGHT_H
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#include <libudev.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum backlight_type {
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BACKLIGHT_RAW,
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BACKLIGHT_PLATFORM,
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BACKLIGHT_FIRMWARE
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};
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struct backlight {
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char *path;
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int max_brightness;
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int brightness;
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enum backlight_type type;
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};
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/*
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* Find and set up a backlight for a valid udev connector device, i.e. one
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* matching drm subsystem and with status of connected.
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*/
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struct backlight *backlight_init(struct udev_device *drm_device,
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uint32_t connector_type);
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/* Free backlight resources */
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void backlight_destroy(struct backlight *backlight);
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/* Provide the maximum backlight value */
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long backlight_get_max_brightness(struct backlight *backlight);
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/* Provide the cached backlight value */
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long backlight_get_brightness(struct backlight *backlight);
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/* Provide the hardware backlight value */
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long backlight_get_actual_brightness(struct backlight *backlight);
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/* Set the backlight to a value between 0 and max */
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long backlight_set_brightness(struct backlight *backlight, long brightness);
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#ifdef __cplusplus
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}
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#endif
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#endif /* LIBBACKLIGHT_H */
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@@ -0,0 +1,90 @@
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if not get_option('backend-drm')
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subdir_done()
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endif
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lib_backlight = static_library(
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'backlight',
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'libbacklight.c',
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dependencies: [
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dep_libdrm_headers,
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dependency('libudev')
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],
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include_directories: include_directories('../..'),
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install: false
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)
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dep_backlight = declare_dependency(
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link_with: lib_backlight,
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include_directories: include_directories('.')
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)
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config_h.set('BUILD_DRM_COMPOSITOR', '1')
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srcs_drm = [
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'drm.c',
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linux_dmabuf_unstable_v1_protocol_c,
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linux_dmabuf_unstable_v1_server_protocol_h,
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presentation_time_server_protocol_h,
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]
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deps_drm = [
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dep_libweston,
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dep_session_helper,
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dep_libdrm,
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dep_libinput_backend,
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dependency('libudev', version: '>= 136'),
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dep_backlight
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]
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# XXX: Actually let DRM-backend build without GBM, it really should
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if true # get_option('renderer-gl')
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dep_gbm = dependency('gbm', required: false)
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if not dep_gbm.found()
|
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error('drm-backend requires gbm which was not found. Or, you can use \'-Dbackend-drm=false\'.')
|
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endif
|
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if dep_gbm.version().version_compare('>= 17.1')
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config_h.set('HAVE_GBM_MODIFIERS', '1')
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endif
|
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if dep_gbm.version().version_compare('>= 17.2')
|
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config_h.set('HAVE_GBM_FD_IMPORT', '1')
|
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endif
|
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deps_drm += dep_gbm
|
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endif
|
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|
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if get_option('backend-drm-screencast-vaapi')
|
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foreach name : [ 'libva', 'libva-drm' ]
|
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d = dependency(name, version: '>= 0.34.0', required: false)
|
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if not d.found()
|
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error('VA-API recorder requires @0@ >= 0.34.0 which was not found. Or, you can use \'-Dbackend-drm-screencast-vaapi=false\'.'.format(name))
|
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endif
|
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deps_drm += d
|
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endforeach
|
||||
|
||||
srcs_drm += 'vaapi-recorder.c'
|
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deps_drm += dependency('threads')
|
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config_h.set('BUILD_VAAPI_RECORDER', '1')
|
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endif
|
||||
|
||||
if dep_libdrm.version().version_compare('>= 2.4.71')
|
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config_h.set('HAVE_DRM_ADDFB2_MODIFIERS', '1')
|
||||
endif
|
||||
|
||||
if dep_libdrm.version().version_compare('>= 2.4.78')
|
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config_h.set('HAVE_DRM_ATOMIC', '1')
|
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endif
|
||||
|
||||
if dep_libdrm.version().version_compare('>= 2.4.83')
|
||||
config_h.set('HAVE_DRM_FORMATS_BLOB', '1')
|
||||
endif
|
||||
|
||||
plugin_drm = shared_library(
|
||||
'drm-backend',
|
||||
srcs_drm,
|
||||
include_directories: include_directories('../..', '../../shared'),
|
||||
dependencies: deps_drm,
|
||||
name_prefix: '',
|
||||
install: true,
|
||||
install_dir: dir_module_libweston
|
||||
)
|
||||
env_modmap += 'drm-backend.so=@0@;'.format(plugin_drm.full_path())
|
||||
|
||||
install_headers(backend_drm_h, subdir: dir_include_libweston_install)
|
||||
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,38 @@
|
||||
/*
|
||||
* Copyright © 2013 Intel Corporation
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sublicense, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice (including the
|
||||
* next paragraph) shall be included in all copies or substantial
|
||||
* portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
* SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef _VAAPI_RECORDER_H_
|
||||
#define _VAAPI_RECORDER_H_
|
||||
|
||||
struct vaapi_recorder;
|
||||
|
||||
struct vaapi_recorder *
|
||||
vaapi_recorder_create(int drm_fd, int width, int height, const char *filename);
|
||||
void
|
||||
vaapi_recorder_destroy(struct vaapi_recorder *r);
|
||||
int
|
||||
vaapi_recorder_frame(struct vaapi_recorder *r, int fd, int stride);
|
||||
|
||||
#endif /* _VAAPI_RECORDER_H_ */
|
||||
Reference in New Issue
Block a user