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mpv/video/out/opengl/context_drm_egl.c
Dudemanguy e5d683e187 context_drm_egl: guard gbm_device on uninit 
Not all cards support gbm which means the creation of the gbm device
will fail. However during the uninit process, the destruction of the
device was unconditionally done which leads to a segfault. Guard it
instead. Fixes #13929.
2024-04-18 14:57:01 -05:00

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/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <string.h>
#include <poll.h>
#include <unistd.h>
#include <gbm.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <drm_fourcc.h>
#include "libmpv/render_gl.h"
#include "common/common.h"
#include "osdep/timer.h"
#include "video/out/drm_atomic.h"
#include "video/out/drm_common.h"
#include "video/out/present_sync.h"
#include "egl_helpers.h"
#include "common.h"
#include "context.h"
#ifndef EGL_PLATFORM_GBM_MESA
#define EGL_PLATFORM_GBM_MESA 0x31D7
#endif
#ifndef EGL_PLATFORM_GBM_KHR
#define EGL_PLATFORM_GBM_KHR 0x31D7
#endif
struct gbm_frame {
struct gbm_bo *bo;
};
struct gbm {
struct gbm_surface *surface;
struct gbm_device *device;
struct gbm_frame **bo_queue;
unsigned int num_bos;
};
struct egl {
EGLDisplay display;
EGLContext context;
EGLSurface surface;
};
struct priv {
GL gl;
struct egl egl;
struct gbm gbm;
GLsync *vsync_fences;
unsigned int num_vsync_fences;
uint32_t gbm_format;
uint64_t *gbm_modifiers;
unsigned int num_gbm_modifiers;
struct mpv_opengl_drm_params_v2 drm_params;
struct mpv_opengl_drm_draw_surface_size draw_surface_size;
};
// Not general. Limited to only the formats being used in this module
static const char *gbm_format_to_string(uint32_t format)
{
switch (format) {
case GBM_FORMAT_XRGB8888:
return "GBM_FORMAT_XRGB8888";
case GBM_FORMAT_ARGB8888:
return "GBM_FORMAT_ARGB8888";
case GBM_FORMAT_XBGR8888:
return "GBM_FORMAT_XBGR8888";
case GBM_FORMAT_ABGR8888:
return "GBM_FORMAT_ABGR8888";
case GBM_FORMAT_XRGB2101010:
return "GBM_FORMAT_XRGB2101010";
case GBM_FORMAT_ARGB2101010:
return "GBM_FORMAT_ARGB2101010";
case GBM_FORMAT_XBGR2101010:
return "GBM_FORMAT_XBGR2101010";
case GBM_FORMAT_ABGR2101010:
return "GBM_FORMAT_ABGR2101010";
default:
return "UNKNOWN";
}
}
// Allow falling back to an ARGB EGLConfig when we have an XRGB framebuffer.
// Also allow falling back to an XRGB EGLConfig for ARGB framebuffers, since
// this seems necessary to work with broken Mali drivers that don't report
// their EGLConfigs as supporting alpha properly.
static uint32_t fallback_format_for(uint32_t format)
{
switch (format) {
case GBM_FORMAT_XRGB8888:
return GBM_FORMAT_ARGB8888;
case GBM_FORMAT_ARGB8888:
return GBM_FORMAT_XRGB8888;
case GBM_FORMAT_XBGR8888:
return GBM_FORMAT_ABGR8888;
case GBM_FORMAT_ABGR8888:
return GBM_FORMAT_XBGR8888;
case GBM_FORMAT_XRGB2101010:
return GBM_FORMAT_ARGB2101010;
case GBM_FORMAT_ARGB2101010:
return GBM_FORMAT_XRGB2101010;
case GBM_FORMAT_XBGR2101010:
return GBM_FORMAT_ABGR2101010;
case GBM_FORMAT_ABGR2101010:
return GBM_FORMAT_XBGR2101010;
default:
return 0;
}
}
static int match_config_to_visual(void *user_data, EGLConfig *configs, int num_configs)
{
struct ra_ctx *ctx = (struct ra_ctx*)user_data;
struct priv *p = ctx->priv;
const EGLint visual_id[] = {
(EGLint)p->gbm_format,
(EGLint)fallback_format_for(p->gbm_format),
0
};
for (unsigned int i = 0; visual_id[i] != 0; ++i) {
MP_VERBOSE(ctx, "Attempting to find EGLConfig matching %s\n",
gbm_format_to_string(visual_id[i]));
for (unsigned int j = 0; j < num_configs; ++j) {
EGLint id;
if (!eglGetConfigAttrib(p->egl.display, configs[j], EGL_NATIVE_VISUAL_ID, &id))
continue;
if (visual_id[i] == id) {
MP_VERBOSE(ctx, "Found matching EGLConfig for %s\n",
gbm_format_to_string(visual_id[i]));
return j;
}
}
MP_VERBOSE(ctx, "No matching EGLConfig for %s\n", gbm_format_to_string(visual_id[i]));
}
MP_ERR(ctx, "Could not find EGLConfig matching the GBM visual (%s).\n",
gbm_format_to_string(p->gbm_format));
return -1;
}
static EGLDisplay egl_get_display(struct gbm_device *gbm_device)
{
EGLDisplay ret;
ret = mpegl_get_display(EGL_PLATFORM_GBM_MESA, "EGL_MESA_platform_gbm", gbm_device);
if (ret != EGL_NO_DISPLAY)
return ret;
ret = mpegl_get_display(EGL_PLATFORM_GBM_KHR, "EGL_KHR_platform_gbm", gbm_device);
if (ret != EGL_NO_DISPLAY)
return ret;
return eglGetDisplay(gbm_device);
}
static bool init_egl(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
MP_VERBOSE(ctx, "Initializing EGL\n");
p->egl.display = egl_get_display(p->gbm.device);
if (p->egl.display == EGL_NO_DISPLAY) {
MP_ERR(ctx, "Failed to get EGL display.\n");
return false;
}
if (!eglInitialize(p->egl.display, NULL, NULL)) {
MP_ERR(ctx, "Failed to initialize EGL.\n");
return false;
}
EGLConfig config;
if (!mpegl_create_context_cb(ctx,
p->egl.display,
(struct mpegl_cb){match_config_to_visual, ctx},
&p->egl.context,
&config))
return false;
MP_VERBOSE(ctx, "Initializing EGL surface\n");
p->egl.surface = mpegl_create_window_surface(
p->egl.display, config, p->gbm.surface);
if (p->egl.surface == EGL_NO_SURFACE) {
p->egl.surface = eglCreateWindowSurface(
p->egl.display, config, p->gbm.surface, NULL);
}
if (p->egl.surface == EGL_NO_SURFACE) {
MP_ERR(ctx, "Failed to create EGL surface.\n");
return false;
}
return true;
}
static bool init_gbm(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
struct vo_drm_state *drm = ctx->vo->drm;
MP_VERBOSE(ctx->vo, "Creating GBM device\n");
p->gbm.device = gbm_create_device(drm->fd);
if (!p->gbm.device) {
MP_ERR(ctx->vo, "Failed to create GBM device.\n");
return false;
}
MP_VERBOSE(ctx->vo, "Initializing GBM surface (%d x %d)\n",
p->draw_surface_size.width, p->draw_surface_size.height);
if (p->num_gbm_modifiers == 0) {
p->gbm.surface = gbm_surface_create(
p->gbm.device,
p->draw_surface_size.width,
p->draw_surface_size.height,
p->gbm_format,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
} else {
p->gbm.surface = gbm_surface_create_with_modifiers(
p->gbm.device,
p->draw_surface_size.width,
p->draw_surface_size.height,
p->gbm_format,
p->gbm_modifiers,
p->num_gbm_modifiers);
}
if (!p->gbm.surface) {
MP_ERR(ctx->vo, "Failed to create GBM surface.\n");
return false;
}
return true;
}
static void framebuffer_destroy_callback(struct gbm_bo *bo, void *data)
{
struct framebuffer *fb = data;
if (fb) {
drmModeRmFB(fb->fd, fb->id);
}
}
static void update_framebuffer_from_bo(struct ra_ctx *ctx, struct gbm_bo *bo)
{
struct priv *p = ctx->priv;
struct vo_drm_state *drm = ctx->vo->drm;
struct framebuffer *fb = gbm_bo_get_user_data(bo);
if (fb) {
drm->fb = fb;
return;
}
fb = talloc_zero(ctx, struct framebuffer);
fb->fd = drm->fd;
fb->width = gbm_bo_get_width(bo);
fb->height = gbm_bo_get_height(bo);
uint64_t modifier = gbm_bo_get_modifier(bo);
int ret;
if (p->num_gbm_modifiers == 0 || modifier == DRM_FORMAT_MOD_INVALID) {
uint32_t stride = gbm_bo_get_stride(bo);
uint32_t handle = gbm_bo_get_handle(bo).u32;
ret = drmModeAddFB2(fb->fd, fb->width, fb->height,
p->gbm_format,
(uint32_t[4]){handle, 0, 0, 0},
(uint32_t[4]){stride, 0, 0, 0},
(uint32_t[4]){0, 0, 0, 0},
&fb->id, 0);
} else {
MP_VERBOSE(ctx, "GBM surface using modifier 0x%"PRIX64"\n", modifier);
uint32_t handles[4] = {0};
uint32_t strides[4] = {0};
uint32_t offsets[4] = {0};
uint64_t modifiers[4] = {0};
const int num_planes = gbm_bo_get_plane_count(bo);
for (int i = 0; i < num_planes; ++i) {
handles[i] = gbm_bo_get_handle_for_plane(bo, i).u32;
strides[i] = gbm_bo_get_stride_for_plane(bo, i);
offsets[i] = gbm_bo_get_offset(bo, i);
modifiers[i] = modifier;
}
ret = drmModeAddFB2WithModifiers(fb->fd, fb->width, fb->height,
p->gbm_format,
handles, strides, offsets, modifiers,
&fb->id, DRM_MODE_FB_MODIFIERS);
}
if (ret) {
MP_ERR(ctx->vo, "Failed to create framebuffer: %s\n", mp_strerror(errno));
}
gbm_bo_set_user_data(bo, fb, framebuffer_destroy_callback);
drm->fb = fb;
}
static void queue_flip(struct ra_ctx *ctx, struct gbm_frame *frame)
{
struct vo_drm_state *drm = ctx->vo->drm;
update_framebuffer_from_bo(ctx, frame->bo);
struct drm_atomic_context *atomic_ctx = drm->atomic_context;
drm_object_set_property(atomic_ctx->request, atomic_ctx->draw_plane, "FB_ID", drm->fb->id);
drm_object_set_property(atomic_ctx->request, atomic_ctx->draw_plane, "CRTC_ID", atomic_ctx->crtc->id);
drm_object_set_property(atomic_ctx->request, atomic_ctx->draw_plane, "ZPOS", 1);
int ret = drmModeAtomicCommit(drm->fd, atomic_ctx->request,
DRM_MODE_ATOMIC_NONBLOCK | DRM_MODE_PAGE_FLIP_EVENT, drm);
if (ret)
MP_WARN(ctx->vo, "Failed to commit atomic request: %s\n", mp_strerror(ret));
drm->waiting_for_flip = !ret;
drmModeAtomicFree(atomic_ctx->request);
atomic_ctx->request = drmModeAtomicAlloc();
}
static void enqueue_bo(struct ra_ctx *ctx, struct gbm_bo *bo)
{
struct priv *p = ctx->priv;
struct gbm_frame *new_frame = talloc(p, struct gbm_frame);
new_frame->bo = bo;
MP_TARRAY_APPEND(p, p->gbm.bo_queue, p->gbm.num_bos, new_frame);
}
static void dequeue_bo(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
talloc_free(p->gbm.bo_queue[0]);
MP_TARRAY_REMOVE_AT(p->gbm.bo_queue, p->gbm.num_bos, 0);
}
static void swapchain_step(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
if (!(p->gbm.num_bos > 0))
return;
if (p->gbm.bo_queue[0]->bo)
gbm_surface_release_buffer(p->gbm.surface, p->gbm.bo_queue[0]->bo);
dequeue_bo(ctx);
}
static void new_fence(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
if (p->gl.FenceSync) {
GLsync fence = p->gl.FenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
if (fence)
MP_TARRAY_APPEND(p, p->vsync_fences, p->num_vsync_fences, fence);
}
}
static void wait_fence(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
while (p->num_vsync_fences && (p->num_vsync_fences >= p->gbm.num_bos)) {
p->gl.ClientWaitSync(p->vsync_fences[0], GL_SYNC_FLUSH_COMMANDS_BIT, 1e9);
p->gl.DeleteSync(p->vsync_fences[0]);
MP_TARRAY_REMOVE_AT(p->vsync_fences, p->num_vsync_fences, 0);
}
}
static bool drm_egl_start_frame(struct ra_swapchain *sw, struct ra_fbo *out_fbo)
{
struct ra_ctx *ctx = sw->ctx;
struct priv *p = ctx->priv;
struct vo_drm_state *drm = ctx->vo->drm;
if (!drm->atomic_context->request) {
drm->atomic_context->request = drmModeAtomicAlloc();
p->drm_params.atomic_request_ptr = &drm->atomic_context->request;
}
return ra_gl_ctx_start_frame(sw, out_fbo);
}
static bool drm_egl_submit_frame(struct ra_swapchain *sw, const struct vo_frame *frame)
{
struct ra_ctx *ctx = sw->ctx;
struct vo_drm_state *drm = ctx->vo->drm;
drm->still = frame->still;
return ra_gl_ctx_submit_frame(sw, frame);
}
static void drm_egl_swap_buffers(struct ra_swapchain *sw)
{
struct ra_ctx *ctx = sw->ctx;
struct priv *p = ctx->priv;
struct vo_drm_state *drm = ctx->vo->drm;
const bool drain = drm->paused || drm->still; // True when we need to drain the swapchain
if (!drm->active)
return;
wait_fence(ctx);
eglSwapBuffers(p->egl.display, p->egl.surface);
struct gbm_bo *new_bo = gbm_surface_lock_front_buffer(p->gbm.surface);
if (!new_bo) {
MP_ERR(ctx->vo, "Couldn't lock front buffer\n");
return;
}
enqueue_bo(ctx, new_bo);
new_fence(ctx);
while (drain || p->gbm.num_bos > ctx->vo->opts->swapchain_depth ||
!gbm_surface_has_free_buffers(p->gbm.surface)) {
if (drm->waiting_for_flip) {
vo_drm_wait_on_flip(drm);
swapchain_step(ctx);
}
if (p->gbm.num_bos <= 1)
break;
if (!p->gbm.bo_queue[1] || !p->gbm.bo_queue[1]->bo) {
MP_ERR(ctx->vo, "Hole in swapchain?\n");
swapchain_step(ctx);
continue;
}
queue_flip(ctx, p->gbm.bo_queue[1]);
}
}
static const struct ra_swapchain_fns drm_egl_swapchain = {
.start_frame = drm_egl_start_frame,
.submit_frame = drm_egl_submit_frame,
.swap_buffers = drm_egl_swap_buffers,
};
static void drm_egl_uninit(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
struct vo_drm_state *drm = ctx->vo->drm;
if (drm) {
struct drm_atomic_context *atomic_ctx = drm->atomic_context;
if (drmModeAtomicCommit(drm->fd, atomic_ctx->request, 0, NULL))
MP_ERR(ctx->vo, "Failed to commit atomic request: %s\n",
mp_strerror(errno));
drmModeAtomicFree(atomic_ctx->request);
}
ra_gl_ctx_uninit(ctx);
vo_drm_uninit(ctx->vo);
if (p) {
// According to GBM documentation all BO:s must be released
// before gbm_surface_destroy can be called on the surface.
while (p->gbm.num_bos) {
swapchain_step(ctx);
}
eglMakeCurrent(p->egl.display, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
if (p->egl.display != EGL_NO_DISPLAY) {
eglDestroySurface(p->egl.display, p->egl.surface);
eglDestroyContext(p->egl.display, p->egl.context);
}
if (p->gbm.surface)
gbm_surface_destroy(p->gbm.surface);
eglTerminate(p->egl.display);
if (p->gbm.device)
gbm_device_destroy(p->gbm.device);
if (p->drm_params.render_fd != -1)
close(p->drm_params.render_fd);
}
}
// If the draw plane supports ARGB we want to use that, but if it doesn't we
// fall back on XRGB. If we do not have atomic there is no particular reason to
// be using ARGB (drmprime hwdec will not work without atomic, anyway), so we
// fall back to XRGB (another reason is that we do not have the convenient
// atomic_ctx and its convenient plane fields).
static bool probe_gbm_format(struct ra_ctx *ctx, uint32_t argb_format, uint32_t xrgb_format)
{
struct priv *p = ctx->priv;
struct vo_drm_state *drm = ctx->vo->drm;
drmModePlane *drmplane = drmModeGetPlane(drm->fd, drm->atomic_context->draw_plane->id);
bool have_argb = false;
bool have_xrgb = false;
bool result = false;
for (unsigned int i = 0; i < drmplane->count_formats; ++i) {
if (drmplane->formats[i] == argb_format) {
have_argb = true;
} else if (drmplane->formats[i] == xrgb_format) {
have_xrgb = true;
}
}
if (have_argb) {
p->gbm_format = argb_format;
MP_VERBOSE(ctx->vo, "%s supported by draw plane.\n", gbm_format_to_string(argb_format));
result = true;
} else if (have_xrgb) {
p->gbm_format = xrgb_format;
MP_VERBOSE(ctx->vo, "%s not supported by draw plane: Falling back to %s.\n",
gbm_format_to_string(argb_format), gbm_format_to_string(xrgb_format));
result = true;
}
drmModeFreePlane(drmplane);
return result;
}
static bool probe_gbm_modifiers(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
struct vo_drm_state *drm = ctx->vo->drm;
drmModePropertyBlobPtr blob = drm_object_get_property_blob(drm->atomic_context->draw_plane,
"IN_FORMATS");
if (!blob) {
MP_VERBOSE(ctx->vo, "Failed to find IN_FORMATS property\n");
return false;
}
struct drm_format_modifier_blob *data = blob->data;
uint32_t *fmts = (uint32_t *)((char *)data + data->formats_offset);
struct drm_format_modifier *mods =
(struct drm_format_modifier *)((char *)data + data->modifiers_offset);
for (unsigned int j = 0; j < data->count_modifiers; ++j) {
struct drm_format_modifier *mod = &mods[j];
for (uint64_t k = 0; k < 64; ++k) {
if (mod->formats & (1ull << k)) {
uint32_t fmt = fmts[k + mod->offset];
if (fmt == p->gbm_format) {
MP_TARRAY_APPEND(p, p->gbm_modifiers,
p->num_gbm_modifiers, mod->modifier);
MP_VERBOSE(ctx->vo, "Supported modifier: 0x%"PRIX64"\n",
(uint64_t)mod->modifier);
break;
}
}
}
}
drmModeFreePropertyBlob(blob);
if (p->num_gbm_modifiers == 0) {
MP_VERBOSE(ctx->vo, "No supported DRM modifiers found.\n");
}
return true;
}
static void drm_egl_get_vsync(struct ra_ctx *ctx, struct vo_vsync_info *info)
{
struct vo_drm_state *drm = ctx->vo->drm;
present_sync_get_info(drm->present, info);
}
static bool drm_egl_init(struct ra_ctx *ctx)
{
if (!vo_drm_init(ctx->vo))
goto err;
struct priv *p = ctx->priv = talloc_zero(ctx, struct priv);
struct vo_drm_state *drm = ctx->vo->drm;
if (ctx->vo->drm->opts->draw_surface_size.wh_valid) {
p->draw_surface_size.width = ctx->vo->drm->opts->draw_surface_size.w;
p->draw_surface_size.height = ctx->vo->drm->opts->draw_surface_size.h;
} else {
p->draw_surface_size.width = drm->mode.mode.hdisplay;
p->draw_surface_size.height = drm->mode.mode.vdisplay;
}
drm->width = p->draw_surface_size.width;
drm->height = p->draw_surface_size.height;
uint32_t argb_format;
uint32_t xrgb_format;
switch (ctx->vo->drm->opts->drm_format) {
case DRM_OPTS_FORMAT_XRGB2101010:
argb_format = GBM_FORMAT_ARGB2101010;
xrgb_format = GBM_FORMAT_XRGB2101010;
break;
case DRM_OPTS_FORMAT_XBGR2101010:
argb_format = GBM_FORMAT_ABGR2101010;
xrgb_format = GBM_FORMAT_XBGR2101010;
break;
case DRM_OPTS_FORMAT_XBGR8888:
argb_format = GBM_FORMAT_ABGR8888;
xrgb_format = GBM_FORMAT_XBGR8888;
break;
default:
if (drm->opts->drm_format != DRM_OPTS_FORMAT_XRGB8888) {
MP_VERBOSE(ctx->vo, "Requested format not supported by context, "
"falling back to xrgb8888\n");
}
argb_format = GBM_FORMAT_ARGB8888;
xrgb_format = GBM_FORMAT_XRGB8888;
break;
}
if (!probe_gbm_format(ctx, argb_format, xrgb_format)) {
MP_ERR(ctx->vo, "No suitable format found on draw plane (tried: %s and %s).\n",
gbm_format_to_string(argb_format), gbm_format_to_string(xrgb_format));
goto err;
}
// It is not fatal if this fails. We'll just try without modifiers.
probe_gbm_modifiers(ctx);
if (!init_gbm(ctx)) {
MP_ERR(ctx->vo, "Failed to setup GBM.\n");
goto err;
}
if (!init_egl(ctx)) {
MP_ERR(ctx->vo, "Failed to setup EGL.\n");
goto err;
}
if (!eglMakeCurrent(p->egl.display, p->egl.surface, p->egl.surface,
p->egl.context)) {
MP_ERR(ctx->vo, "Failed to make context current.\n");
goto err;
}
mpegl_load_functions(&p->gl, ctx->vo->log);
// required by gbm_surface_lock_front_buffer
eglSwapBuffers(p->egl.display, p->egl.surface);
MP_VERBOSE(ctx, "Preparing framebuffer\n");
struct gbm_bo *new_bo = gbm_surface_lock_front_buffer(p->gbm.surface);
if (!new_bo) {
MP_ERR(ctx, "Failed to lock GBM surface.\n");
goto err;
}
enqueue_bo(ctx, new_bo);
update_framebuffer_from_bo(ctx, new_bo);
if (!drm->fb || !drm->fb->id) {
MP_ERR(ctx, "Failed to create framebuffer.\n");
goto err;
}
if (!vo_drm_acquire_crtc(ctx->vo->drm)) {
MP_ERR(ctx, "Failed to set CRTC for connector %u: %s\n",
drm->connector->connector_id, mp_strerror(errno));
goto err;
}
vo_drm_set_monitor_par(ctx->vo);
p->drm_params.fd = drm->fd;
p->drm_params.crtc_id = drm->crtc_id;
p->drm_params.connector_id = drm->connector->connector_id;
p->drm_params.atomic_request_ptr = &drm->atomic_context->request;
char *rendernode_path = drmGetRenderDeviceNameFromFd(drm->fd);
if (rendernode_path) {
MP_VERBOSE(ctx, "Opening render node \"%s\"\n", rendernode_path);
p->drm_params.render_fd = open(rendernode_path, O_RDWR | O_CLOEXEC);
if (p->drm_params.render_fd == -1) {
MP_WARN(ctx, "Cannot open render node: %s\n", mp_strerror(errno));
}
free(rendernode_path);
} else {
p->drm_params.render_fd = -1;
MP_VERBOSE(ctx, "Could not find path to render node.\n");
}
struct ra_gl_ctx_params params = {
.external_swapchain = &drm_egl_swapchain,
.get_vsync = &drm_egl_get_vsync,
};
if (!ra_gl_ctx_init(ctx, &p->gl, params))
goto err;
ra_add_native_resource(ctx->ra, "drm_params_v2", &p->drm_params);
ra_add_native_resource(ctx->ra, "drm_draw_surface_size", &p->draw_surface_size);
return true;
err:
drm_egl_uninit(ctx);
return false;
}
static bool drm_egl_reconfig(struct ra_ctx *ctx)
{
struct vo_drm_state *drm = ctx->vo->drm;
ctx->vo->dwidth = drm->fb->width;
ctx->vo->dheight = drm->fb->height;
ra_gl_ctx_resize(ctx->swapchain, drm->fb->width, drm->fb->height, 0);
return true;
}
static int drm_egl_control(struct ra_ctx *ctx, int *events, int request,
void *arg)
{
int ret = vo_drm_control(ctx->vo, events, request, arg);
return ret;
}
static void drm_egl_wait_events(struct ra_ctx *ctx, int64_t until_time_ns)
{
vo_drm_wait_events(ctx->vo, until_time_ns);
}
static void drm_egl_wakeup(struct ra_ctx *ctx)
{
vo_drm_wakeup(ctx->vo);
}
const struct ra_ctx_fns ra_ctx_drm_egl = {
.type = "opengl",
.name = "drm",
.description = "DRM/EGL",
.reconfig = drm_egl_reconfig,
.control = drm_egl_control,
.init = drm_egl_init,
.uninit = drm_egl_uninit,
.wait_events = drm_egl_wait_events,
.wakeup = drm_egl_wakeup,
};
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