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mpv/video/out/opengl/context_drm_egl.c

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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 "libmpv/render_gl.h"
#include "video/out/drm_common.h"
#include "common/common.h"
#include "osdep/timer.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
#define USE_MASTER 0
#ifndef EGL_EXT_platform_base
typedef EGLDisplay (EGLAPIENTRYP PFNEGLGETPLATFORMDISPLAYEXTPROC)
(EGLenum platform, void *native_display, const EGLint *attrib_list);
#endif
struct framebuffer
{
int fd;
uint32_t width, height;
uint32_t id;
};
struct gbm_frame {
struct gbm_bo *bo;
struct drm_vsync_tuple vsync;
};
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 kms *kms;
drmEventContext ev;
drmModeCrtc *old_crtc;
struct egl egl;
struct gbm gbm;
struct framebuffer *fb;
GLsync *vsync_fences;
unsigned int num_vsync_fences;
uint32_t gbm_format;
bool active;
bool waiting_for_flip;
bool vt_switcher_active;
struct vt_switcher vt_switcher;
bool still;
bool paused;
struct drm_vsync_tuple vsync;
struct vo_vsync_info vsync_info;
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_XRGB2101010:
return "GBM_FORMAT_XRGB2101010";
case GBM_FORMAT_ARGB2101010:
return "GBM_FORMAT_ARGB2101010";
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 neccessary 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_XRGB2101010:
return GBM_FORMAT_ARGB2101010;
case GBM_FORMAT_ARGB2101010:
return GBM_FORMAT_XRGB2101010;
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)
{
const char *ext = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
if (ext) {
PFNEGLGETPLATFORMDISPLAYEXTPROC get_platform_display = NULL;
get_platform_display = (void *) eglGetProcAddress("eglGetPlatformDisplayEXT");
if (get_platform_display && strstr(ext, "EGL_MESA_platform_gbm"))
return get_platform_display(EGL_PLATFORM_GBM_MESA, gbm_device, NULL);
if (get_platform_display && strstr(ext, "EGL_KHR_platform_gbm"))
return get_platform_display(EGL_PLATFORM_GBM_KHR, gbm_device, NULL);
}
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
= 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;
MP_VERBOSE(ctx->vo, "Creating GBM device\n");
p->gbm.device = gbm_create_device(p->kms->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);
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);
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 framebuffer *fb = gbm_bo_get_user_data(bo);
if (fb) {
p->fb = fb;
return;
}
fb = talloc_zero(ctx, struct framebuffer);
fb->fd = p->kms->fd;
fb->width = gbm_bo_get_width(bo);
fb->height = gbm_bo_get_height(bo);
uint32_t stride = gbm_bo_get_stride(bo);
uint32_t handle = gbm_bo_get_handle(bo).u32;
int 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);
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);
p->fb = fb;
}
static bool crtc_setup_atomic(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
struct drm_atomic_context *atomic_ctx = p->kms->atomic_context;
if (!drm_atomic_save_old_state(atomic_ctx)) {
MP_WARN(ctx->vo, "Failed to save old DRM atomic state\n");
}
drmModeAtomicReqPtr request = drmModeAtomicAlloc();
if (!request) {
MP_ERR(ctx->vo, "Failed to allocate drm atomic request\n");
return false;
}
if (drm_object_set_property(request, atomic_ctx->connector, "CRTC_ID", p->kms->crtc_id) < 0) {
MP_ERR(ctx->vo, "Could not set CRTC_ID on connector\n");
return false;
}
if (!drm_mode_ensure_blob(p->kms->fd, &p->kms->mode)) {
MP_ERR(ctx->vo, "Failed to create DRM mode blob\n");
goto err;
}
if (drm_object_set_property(request, atomic_ctx->crtc, "MODE_ID", p->kms->mode.blob_id) < 0) {
MP_ERR(ctx->vo, "Could not set MODE_ID on crtc\n");
goto err;
}
if (drm_object_set_property(request, atomic_ctx->crtc, "ACTIVE", 1) < 0) {
MP_ERR(ctx->vo, "Could not set ACTIVE on crtc\n");
goto err;
}
drm_object_set_property(request, atomic_ctx->draw_plane, "FB_ID", p->fb->id);
drm_object_set_property(request, atomic_ctx->draw_plane, "CRTC_ID", p->kms->crtc_id);
drm_object_set_property(request, atomic_ctx->draw_plane, "SRC_X", 0);
drm_object_set_property(request, atomic_ctx->draw_plane, "SRC_Y", 0);
drm_object_set_property(request, atomic_ctx->draw_plane, "SRC_W", p->draw_surface_size.width << 16);
drm_object_set_property(request, atomic_ctx->draw_plane, "SRC_H", p->draw_surface_size.height << 16);
drm_object_set_property(request, atomic_ctx->draw_plane, "CRTC_X", 0);
drm_object_set_property(request, atomic_ctx->draw_plane, "CRTC_Y", 0);
drm_object_set_property(request, atomic_ctx->draw_plane, "CRTC_W", p->kms->mode.mode.hdisplay);
drm_object_set_property(request, atomic_ctx->draw_plane, "CRTC_H", p->kms->mode.mode.vdisplay);
int ret = drmModeAtomicCommit(p->kms->fd, request, DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
if (ret)
MP_ERR(ctx->vo, "Failed to commit ModeSetting atomic request (%d)\n", ret);
drmModeAtomicFree(request);
return ret == 0;
err:
drmModeAtomicFree(request);
return false;
}
static bool crtc_release_atomic(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
struct drm_atomic_context *atomic_ctx = p->kms->atomic_context;
drmModeAtomicReqPtr request = drmModeAtomicAlloc();
if (!request) {
MP_ERR(ctx->vo, "Failed to allocate drm atomic request\n");
return false;
}
if (!drm_atomic_restore_old_state(request, atomic_ctx)) {
MP_WARN(ctx->vo, "Got error while restoring old state\n");
}
int ret = drmModeAtomicCommit(p->kms->fd, request, DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
if (ret)
MP_WARN(ctx->vo, "Failed to commit ModeSetting atomic request (%d)\n", ret);
drmModeAtomicFree(request);
return ret == 0;
}
static bool crtc_setup(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
if (p->active)
return true;
if (p->kms->atomic_context) {
int ret = crtc_setup_atomic(ctx);
p->active = true;
return ret;
} else {
p->old_crtc = drmModeGetCrtc(p->kms->fd, p->kms->crtc_id);
int ret = drmModeSetCrtc(p->kms->fd, p->kms->crtc_id, p->fb->id,
0, 0, &p->kms->connector->connector_id, 1,
&p->kms->mode.mode);
p->active = true;
return ret == 0;
}
}
static void crtc_release(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
if (!p->active)
return;
p->active = false;
if (p->kms->atomic_context) {
if (p->kms->atomic_context->old_state.saved) {
if (!crtc_release_atomic(ctx))
MP_ERR(ctx->vo, "Failed to restore previous mode\n");
}
} else {
if (p->old_crtc) {
drmModeSetCrtc(p->kms->fd,
p->old_crtc->crtc_id, p->old_crtc->buffer_id,
p->old_crtc->x, p->old_crtc->y,
&p->kms->connector->connector_id, 1,
&p->old_crtc->mode);
drmModeFreeCrtc(p->old_crtc);
p->old_crtc = NULL;
}
}
}
static void release_vt(void *data)
{
struct ra_ctx *ctx = data;
MP_VERBOSE(ctx->vo, "Releasing VT\n");
crtc_release(ctx);
if (USE_MASTER) {
//this function enables support for switching to x, weston etc.
//however, for whatever reason, it can be called only by root users.
//until things change, this is commented.
struct priv *p = ctx->priv;
if (drmDropMaster(p->kms->fd)) {
MP_WARN(ctx->vo, "Failed to drop DRM master: %s\n",
mp_strerror(errno));
}
}
}
static void acquire_vt(void *data)
{
struct ra_ctx *ctx = data;
MP_VERBOSE(ctx->vo, "Acquiring VT\n");
if (USE_MASTER) {
struct priv *p = ctx->priv;
if (drmSetMaster(p->kms->fd)) {
MP_WARN(ctx->vo, "Failed to acquire DRM master: %s\n",
mp_strerror(errno));
}
}
crtc_setup(ctx);
}
static void queue_flip(struct ra_ctx *ctx, struct gbm_frame *frame)
{
struct priv *p = ctx->priv;
struct drm_atomic_context *atomic_ctx = p->kms->atomic_context;
int ret;
update_framebuffer_from_bo(ctx, frame->bo);
// Alloc and fill the data struct for the page flip callback
struct drm_pflip_cb_closure *data = talloc(ctx, struct drm_pflip_cb_closure);
data->frame_vsync = &frame->vsync;
data->vsync = &p->vsync;
data->vsync_info = &p->vsync_info;
data->waiting_for_flip = &p->waiting_for_flip;
data->log = ctx->log;
if (atomic_ctx) {
drm_object_set_property(atomic_ctx->request, atomic_ctx->draw_plane, "FB_ID", p->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);
ret = drmModeAtomicCommit(p->kms->fd, atomic_ctx->request,
DRM_MODE_ATOMIC_NONBLOCK | DRM_MODE_PAGE_FLIP_EVENT, data);
if (ret) {
MP_WARN(ctx->vo, "Failed to commit atomic request (%d)\n", ret);
talloc_free(data);
}
} else {
ret = drmModePageFlip(p->kms->fd, p->kms->crtc_id, p->fb->id,
DRM_MODE_PAGE_FLIP_EVENT, data);
if (ret) {
MP_WARN(ctx->vo, "Failed to queue page flip: %s\n", mp_strerror(errno));
talloc_free(data);
}
}
p->waiting_for_flip = true;
if (atomic_ctx) {
drmModeAtomicFree(atomic_ctx->request);
atomic_ctx->request = drmModeAtomicAlloc();
}
}
static void wait_on_flip(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
// poll page flip finish event
while (p->waiting_for_flip) {
const int timeout_ms = 3000;
struct pollfd fds[1] = { { .events = POLLIN, .fd = p->kms->fd } };
poll(fds, 1, timeout_ms);
if (fds[0].revents & POLLIN) {
const int ret = drmHandleEvent(p->kms->fd, &p->ev);
if (ret != 0) {
MP_ERR(ctx->vo, "drmHandleEvent failed: %i\n", ret);
return;
}
}
}
}
static void enqueue_bo(struct ra_ctx *ctx, struct gbm_bo *bo)
{
struct priv *p = ctx->priv;
p->vsync.sbc++;
struct gbm_frame *new_frame = talloc(p, struct gbm_frame);
new_frame->bo = bo;
new_frame->vsync = p->vsync;
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;
if (p->kms->atomic_context && !p->kms->atomic_context->request) {
p->kms->atomic_context->request = drmModeAtomicAlloc();
p->drm_params.atomic_request_ptr = &p->kms->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 priv *p = ctx->priv;
p->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;
const bool drain = p->paused || p->still; // True when we need to drain the swapchain
if (!p->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 (p->waiting_for_flip) {
wait_on_flip(ctx);
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 drm_atomic_context *atomic_ctx = p->kms->atomic_context;
if (atomic_ctx) {
int ret = drmModeAtomicCommit(p->kms->fd, atomic_ctx->request, 0, NULL);
if (ret)
MP_ERR(ctx->vo, "Failed to commit atomic request (%d)\n", ret);
drmModeAtomicFree(atomic_ctx->request);
}
ra_gl_ctx_uninit(ctx);
crtc_release(ctx);
if (p->vt_switcher_active)
vt_switcher_destroy(&p->vt_switcher);
// 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);
eglDestroyContext(p->egl.display, p->egl.context);
eglDestroySurface(p->egl.display, p->egl.surface);
gbm_surface_destroy(p->gbm.surface);
eglTerminate(p->egl.display);
gbm_device_destroy(p->gbm.device);
p->egl.context = EGL_NO_CONTEXT;
eglDestroyContext(p->egl.display, p->egl.context);
close(p->drm_params.render_fd);
if (p->kms) {
kms_destroy(p->kms);
p->kms = 0;
}
}
// 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;
if (!p->kms->atomic_context) {
p->gbm_format = xrgb_format;
MP_VERBOSE(ctx->vo, "Not using DRM Atomic: Use %s for draw plane.\n",
gbm_format_to_string(xrgb_format));
return true;
}
drmModePlane *drmplane =
drmModeGetPlane(p->kms->fd, p->kms->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 void drm_egl_get_vsync(struct ra_ctx *ctx, struct vo_vsync_info *info)
{
struct priv *p = ctx->priv;
*info = p->vsync_info;
}
static bool drm_egl_init(struct ra_ctx *ctx)
{
if (ctx->opts.probing) {
MP_VERBOSE(ctx, "DRM EGL backend can be activated only manually.\n");
return false;
}
struct priv *p = ctx->priv = talloc_zero(ctx, struct priv);
p->ev.version = DRM_EVENT_CONTEXT_VERSION;
p->ev.page_flip_handler = &drm_pflip_cb;
p->vt_switcher_active = vt_switcher_init(&p->vt_switcher, ctx->vo->log);
if (p->vt_switcher_active) {
vt_switcher_acquire(&p->vt_switcher, acquire_vt, ctx);
vt_switcher_release(&p->vt_switcher, release_vt, ctx);
} else {
MP_WARN(ctx, "Failed to set up VT switcher. Terminal switching will be unavailable.\n");
}
MP_VERBOSE(ctx, "Initializing KMS\n");
p->kms = kms_create(ctx->log, ctx->vo->opts->drm_opts->drm_connector_spec,
ctx->vo->opts->drm_opts->drm_mode_spec,
ctx->vo->opts->drm_opts->drm_draw_plane,
ctx->vo->opts->drm_opts->drm_drmprime_video_plane,
ctx->vo->opts->drm_opts->drm_atomic);
if (!p->kms) {
MP_ERR(ctx, "Failed to create KMS.\n");
return false;
}
if (ctx->vo->opts->drm_opts->drm_draw_surface_size.wh_valid) {
if (p->kms->atomic_context) {
p->draw_surface_size.width = ctx->vo->opts->drm_opts->drm_draw_surface_size.w;
p->draw_surface_size.height = ctx->vo->opts->drm_opts->drm_draw_surface_size.h;
} else {
p->draw_surface_size.width = p->kms->mode.mode.hdisplay;
p->draw_surface_size.height = p->kms->mode.mode.vdisplay;
MP_WARN(ctx, "Setting draw plane size is only available with DRM atomic, defaulting to screen resolution\n");
}
} else {
p->draw_surface_size.width = p->kms->mode.mode.hdisplay;
p->draw_surface_size.height = p->kms->mode.mode.vdisplay;
}
uint32_t argb_format;
uint32_t xrgb_format;
if (DRM_OPTS_FORMAT_XRGB2101010 == ctx->vo->opts->drm_opts->drm_format) {
argb_format = GBM_FORMAT_ARGB2101010;
xrgb_format = GBM_FORMAT_XRGB2101010;
} else {
argb_format = GBM_FORMAT_ARGB8888;
xrgb_format = GBM_FORMAT_XRGB8888;
}
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));
return false;
}
if (!init_gbm(ctx)) {
MP_ERR(ctx->vo, "Failed to setup GBM.\n");
return false;
}
if (!init_egl(ctx)) {
MP_ERR(ctx->vo, "Failed to setup EGL.\n");
return false;
}
if (!eglMakeCurrent(p->egl.display, p->egl.surface, p->egl.surface,
p->egl.context)) {
MP_ERR(ctx->vo, "Failed to make context current.\n");
return false;
}
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");
return false;
}
enqueue_bo(ctx, new_bo);
update_framebuffer_from_bo(ctx, new_bo);
if (!p->fb || !p->fb->id) {
MP_ERR(ctx, "Failed to create framebuffer.\n");
return false;
}
if (!crtc_setup(ctx)) {
MP_ERR(ctx, "Failed to set CRTC for connector %u: %s\n",
p->kms->connector->connector_id, mp_strerror(errno));
return false;
}
p->drm_params.fd = p->kms->fd;
p->drm_params.crtc_id = p->kms->crtc_id;
p->drm_params.connector_id = p->kms->connector->connector_id;
if (p->kms->atomic_context)
p->drm_params.atomic_request_ptr = &p->kms->atomic_context->request;
char *rendernode_path = drmGetRenderDeviceNameFromFd(p->kms->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\": %s. VAAPI hwdec will be disabled\n",
rendernode_path, mp_strerror(errno));
}
free(rendernode_path);
} else {
p->drm_params.render_fd = -1;
MP_VERBOSE(ctx, "Could not find path to render node. VAAPI hwdec will be disabled\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))
return false;
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);
p->vsync_info.vsync_duration = 0;
p->vsync_info.skipped_vsyncs = -1;
p->vsync_info.last_queue_display_time = -1;
return true;
}
static bool drm_egl_reconfig(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
ctx->vo->dwidth = p->fb->width;
ctx->vo->dheight = p->fb->height;
ra_gl_ctx_resize(ctx->swapchain, p->fb->width, p->fb->height, 0);
return true;
}
static int drm_egl_control(struct ra_ctx *ctx, int *events, int request,
void *arg)
{
struct priv *p = ctx->priv;
switch (request) {
case VOCTRL_GET_DISPLAY_FPS: {
double fps = kms_get_display_fps(p->kms);
if (fps <= 0)
break;
*(double*)arg = fps;
return VO_TRUE;
}
case VOCTRL_PAUSE:
ctx->vo->want_redraw = true;
p->paused = true;
return VO_TRUE;
case VOCTRL_RESUME:
p->paused = false;
p->vsync_info.last_queue_display_time = -1;
p->vsync_info.skipped_vsyncs = 0;
p->vsync.ust = 0;
p->vsync.msc = 0;
return VO_TRUE;
}
return VO_NOTIMPL;
}
static void wait_events(struct ra_ctx *ctx, int64_t until_time_us)
{
struct priv *p = ctx->priv;
if (p->vt_switcher_active) {
int64_t wait_us = until_time_us - mp_time_us();
int timeout_ms = MPCLAMP((wait_us + 500) / 1000, 0, 10000);
vt_switcher_poll(&p->vt_switcher, timeout_ms);
} else {
vo_wait_default(ctx->vo, until_time_us);
}
}
static void wakeup(struct ra_ctx *ctx)
{
struct priv *p = ctx->priv;
if (p->vt_switcher_active)
vt_switcher_interrupt_poll(&p->vt_switcher);
}
const struct ra_ctx_fns ra_ctx_drm_egl = {
.type = "opengl",
.name = "drm",
.reconfig = drm_egl_reconfig,
.control = drm_egl_control,
.init = drm_egl_init,
.uninit = drm_egl_uninit,
.wait_events = wait_events,
.wakeup = wakeup,
};
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