static int obs_init_graphics(struct obs_video_info *ovi)
{
struct obs_core_video *video = &obs->video;
struct gs_init_data graphics_data;
bool success = true;
int errorcode;
make_gs_init_data(&graphics_data, ovi);
errorcode = gs_create(&video->graphics, ovi->graphics_module,
&graphics_data);
if (errorcode != GS_SUCCESS) {
switch (errorcode) {
case GS_ERROR_MODULE_NOT_FOUND:
return OBS_VIDEO_MODULE_NOT_FOUND;
case GS_ERROR_NOT_SUPPORTED:
return OBS_VIDEO_NOT_SUPPORTED;
default:
return OBS_VIDEO_FAIL;
}
}
gs_enter_context(video->graphics);
char *filename = find_libobs_data_file("default.effect");
video->default_effect = gs_effect_create_from_file(filename,
NULL);
bfree(filename);
if (gs_get_device_type() == GS_DEVICE_OPENGL) {
filename = find_libobs_data_file("default_rect.effect");
video->default_rect_effect = gs_effect_create_from_file(
filename, NULL);
bfree(filename);
}
filename = find_libobs_data_file("solid.effect");
video->solid_effect = gs_effect_create_from_file(filename,
NULL);
bfree(filename);
filename = find_libobs_data_file("format_conversion.effect");
video->conversion_effect = gs_effect_create_from_file(filename,
NULL);
bfree(filename);
if (!video->default_effect)
success = false;
if (gs_get_device_type() == GS_DEVICE_OPENGL) {
if (!video->default_rect_effect)
success = false;
}
if (!video->solid_effect)
success = false;
if (!video->conversion_effect)
success = false;
gs_leave_context();
return success ? OBS_VIDEO_SUCCESS : OBS_VIDEO_FAIL;
}
static inline void render_displays(void)
{
struct obs_display *display;
if (!obs->data.valid)
return;
gs_enter_context(obs->video.graphics);
/* render extra displays/swaps */
pthread_mutex_lock(&obs->data.displays_mutex);
display = obs->data.first_display;
while (display) {
render_display(display);
display = display->next;
}
pthread_mutex_unlock(&obs->data.displays_mutex);
/* render main display */
render_display(&obs->video.main_display);
gs_leave_context();
}
static inline void output_frame(uint64_t *cur_time, uint64_t interval)
{
struct obs_core_video *video = &obs->video;
int cur_texture = video->cur_texture;
int prev_texture = cur_texture == 0 ? NUM_TEXTURES-1 : cur_texture-1;
struct video_data frame;
bool frame_ready;
memset(&frame, 0, sizeof(struct video_data));
gs_enter_context(video->graphics);
render_video(video, cur_texture, prev_texture);
frame_ready = download_frame(video, prev_texture, &frame);
gs_flush();
gs_leave_context();
if (frame_ready) {
struct obs_vframe_info vframe_info;
circlebuf_pop_front(&video->vframe_info_buffer, &vframe_info,
sizeof(vframe_info));
frame.timestamp = vframe_info.timestamp;
output_video_data(video, &frame, vframe_info.count);
}
if (++video->cur_texture == NUM_TEXTURES)
video->cur_texture = 0;
video_sleep(video, cur_time, interval);
}
void obs_transition_free(obs_source_t *transition)
{
pthread_mutex_destroy(&transition->transition_mutex);
pthread_mutex_destroy(&transition->transition_tex_mutex);
gs_enter_context(obs->video.graphics);
gs_texrender_destroy(transition->transition_texrender[0]);
gs_texrender_destroy(transition->transition_texrender[1]);
gs_leave_context();
}
static int obs_init_video(struct obs_video_info *ovi)
{
struct obs_core_video *video = &obs->video;
struct video_output_info vi;
int errorcode;
make_video_info(&vi, ovi);
video->base_width = ovi->base_width;
video->base_height = ovi->base_height;
video->output_width = ovi->output_width;
video->output_height = ovi->output_height;
video->gpu_conversion = ovi->gpu_conversion;
errorcode = video_output_open(&video->video, &vi);
if (errorcode != VIDEO_OUTPUT_SUCCESS) {
if (errorcode == VIDEO_OUTPUT_INVALIDPARAM) {
blog(LOG_ERROR, "Invalid video parameters specified");
return OBS_VIDEO_INVALID_PARAM;
} else {
blog(LOG_ERROR, "Could not open video output");
}
return OBS_VIDEO_FAIL;
}
if (!obs_display_init(&video->main_display, NULL))
return OBS_VIDEO_FAIL;
video->main_display.cx = ovi->window_width;
video->main_display.cy = ovi->window_height;
gs_enter_context(video->graphics);
if (ovi->gpu_conversion && !obs_init_gpu_conversion(ovi))
return OBS_VIDEO_FAIL;
if (!obs_init_textures(ovi))
return OBS_VIDEO_FAIL;
gs_leave_context();
errorcode = pthread_create(&video->video_thread, NULL,
obs_video_thread, obs);
if (errorcode != 0)
return OBS_VIDEO_FAIL;
video->thread_initialized = true;
return OBS_VIDEO_SUCCESS;
}
static inline void output_frame(bool raw_active, const bool gpu_active)
{
struct obs_core_video *video = &obs->video;
int cur_texture = video->cur_texture;
int prev_texture = cur_texture == 0 ? NUM_TEXTURES-1 : cur_texture-1;
struct video_data frame;
bool active = raw_active || gpu_active;
bool frame_ready;
memset(&frame, 0, sizeof(struct video_data));
profile_start(output_frame_gs_context_name);
gs_enter_context(video->graphics);
profile_start(output_frame_render_video_name);
render_video(video, raw_active, gpu_active, cur_texture, prev_texture);
profile_end(output_frame_render_video_name);
if (raw_active) {
profile_start(output_frame_download_frame_name);
frame_ready = download_frame(video, prev_texture, &frame);
profile_end(output_frame_download_frame_name);
}
profile_start(output_frame_gs_flush_name);
gs_flush();
profile_end(output_frame_gs_flush_name);
gs_leave_context();
profile_end(output_frame_gs_context_name);
if (raw_active && frame_ready) {
struct obs_vframe_info vframe_info;
circlebuf_pop_front(&video->vframe_info_buffer, &vframe_info,
sizeof(vframe_info));
frame.timestamp = vframe_info.timestamp;
profile_start(output_frame_output_video_data_name);
output_video_data(video, &frame, vframe_info.count);
profile_end(output_frame_output_video_data_name);
}
if (++video->cur_texture == NUM_TEXTURES)
video->cur_texture = 0;
}
static void obs_free_graphics(void)
{
struct obs_core_video *video = &obs->video;
if (video->graphics) {
gs_enter_context(video->graphics);
gs_effect_destroy(video->default_effect);
gs_effect_destroy(video->default_rect_effect);
gs_effect_destroy(video->solid_effect);
gs_effect_destroy(video->conversion_effect);
video->default_effect = NULL;
gs_leave_context();
gs_destroy(video->graphics);
video->graphics = NULL;
}
}
static void obs_free_video(void)
{
struct obs_core_video *video = &obs->video;
if (video->video) {
obs_display_free(&video->main_display);
video_output_close(video->video);
video->video = NULL;
if (!video->graphics)
return;
gs_enter_context(video->graphics);
if (video->mapped_surface) {
gs_stagesurface_unmap(video->mapped_surface);
video->mapped_surface = NULL;
}
for (size_t i = 0; i < NUM_TEXTURES; i++) {
gs_stagesurface_destroy(video->copy_surfaces[i]);
gs_texture_destroy(video->render_textures[i]);
gs_texture_destroy(video->convert_textures[i]);
gs_texture_destroy(video->output_textures[i]);
obs_source_frame_free(&video->convert_frames[i]);
video->copy_surfaces[i] = NULL;
video->render_textures[i] = NULL;
video->convert_textures[i] = NULL;
video->output_textures[i] = NULL;
}
gs_leave_context();
circlebuf_free(&video->timestamp_buffer);
video->cur_texture = 0;
}
}
obs_display_t *obs_display_create(const struct gs_init_data *graphics_data)
{
struct obs_display *display = bzalloc(sizeof(struct obs_display));
gs_enter_context(obs->video.graphics);
if (!obs_display_init(display, graphics_data)) {
obs_display_destroy(display);
display = NULL;
} else {
pthread_mutex_lock(&obs->data.displays_mutex);
display->prev_next = &obs->data.first_display;
display->next = obs->data.first_display;
obs->data.first_display = display;
if (display->next)
display->next->prev_next = &display->next;
pthread_mutex_unlock(&obs->data.displays_mutex);
}
gs_leave_context();
return display;
}
void obs_leave_graphics(void)
{
if (obs && obs->video.graphics)
gs_leave_context();
}