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enable async resizing

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This commit is contained in:
Romain Vimont 2021-02-21 22:40:21 +01:00
parent c6ccb6a9a9
commit 86d152ea86
1 changed files with 56 additions and 19 deletions
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75
app/src/screen.c
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@ -193,14 +193,19 @@ screen_update_content_rect(struct screen *screen) {
static void
on_frame_available(struct video_buffer *vb, void *userdata) {
(void) vb;
(void) userdata;
static SDL_Event new_frame_event = {
.type = EVENT_NEW_FRAME,
};
struct screen *screen = userdata;
// Post the event on the UI thread
SDL_PushEvent(&new_frame_event);
if (screen->use_swscale) {
sc_resizer_process_new_frame(&screen->resizer);
} else {
static SDL_Event new_frame_event = {
.type = EVENT_NEW_FRAME,
};
// Post the event on the UI thread
SDL_PushEvent(&new_frame_event);
}
}
static void
@ -234,7 +239,9 @@ static inline SDL_Texture *
create_texture(struct screen *screen) {
SDL_Renderer *renderer = screen->renderer;
struct size size = screen->frame_size;
SDL_Texture *texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12,
SDL_PixelFormatEnum fmt = screen->use_swscale ? SDL_PIXELFORMAT_RGB24
: SDL_PIXELFORMAT_YV12;
SDL_Texture *texture = SDL_CreateTexture(renderer, fmt,
SDL_TEXTUREACCESS_STREAMING,
size.width, size.height);
if (!texture) {
@ -242,6 +249,7 @@ create_texture(struct screen *screen) {
}
if (screen->scale_filter == SC_SCALE_FILTER_TRILINEAR) {
assert(!screen->use_swscale);
struct sc_opengl *gl = &screen->gl;
SDL_GL_BindTexture(texture, NULL, NULL);
@ -263,6 +271,19 @@ is_swscale(enum sc_scale_filter scale_filter) {
&& scale_filter != SC_SCALE_FILTER_TRILINEAR;
}
static void
on_resizer_frame_available(struct video_buffer *vb, void *userdata) {
(void) vb;
(void) userdata;
static SDL_Event new_frame_event = {
.type = EVENT_NEW_FRAME,
};
// Post the event on the UI thread
SDL_PushEvent(&new_frame_event);
}
bool
screen_init_rendering(struct screen *screen, const char *window_title,
struct size frame_size, bool always_on_top,
@ -349,11 +370,19 @@ screen_init_rendering(struct screen *screen, const char *window_title,
screen->use_swscale = is_swscale(scale_filter);
if (screen->use_swscale) {
bool ok = sc_resizer_init(&screen->resizer, screen->vb,
&screen->resizer_vb, scale_filter,
window_size);
bool ok = video_buffer_init(&screen->resizer_vb, false);
if (!ok) {
LOGE("Could not create resizer video buffer");
SDL_DestroyRenderer(screen->renderer);
SDL_DestroyWindow(screen->window);
return false;
}
ok = sc_resizer_init(&screen->resizer, screen->vb, &screen->resizer_vb,
scale_filter, window_size);
if (!ok) {
LOGE("Could not create resizer");
video_buffer_destroy(&screen->resizer_vb);
SDL_DestroyRenderer(screen->renderer);
SDL_DestroyWindow(screen->window);
return false;
@ -363,6 +392,7 @@ screen_init_rendering(struct screen *screen, const char *window_title,
if (!ok) {
LOGE("Could not start resizer");
sc_resizer_destroy(&screen->resizer);
video_buffer_destroy(&screen->resizer_vb);
SDL_DestroyRenderer(screen->renderer);
SDL_DestroyWindow(screen->window);
}
@ -505,21 +535,28 @@ prepare_for_frame(struct screen *screen, struct size new_frame_size) {
// write the frame into the texture
static void
update_texture(struct screen *screen, const AVFrame *frame) {
SDL_UpdateYUVTexture(screen->texture, NULL,
frame->data[0], frame->linesize[0],
frame->data[1], frame->linesize[1],
frame->data[2], frame->linesize[2]);
if (screen->use_swscale) {
SDL_UpdateTexture(screen->texture, NULL, frame->data[0],
frame->linesize[0]);
} else {
SDL_UpdateYUVTexture(screen->texture, NULL,
frame->data[0], frame->linesize[0],
frame->data[1], frame->linesize[1],
frame->data[2], frame->linesize[2]);
if (screen->scale_filter == SC_SCALE_FILTER_TRILINEAR) {
SDL_GL_BindTexture(screen->texture, NULL, NULL);
screen->gl.GenerateMipmap(GL_TEXTURE_2D);
SDL_GL_UnbindTexture(screen->texture);
if (screen->scale_filter == SC_SCALE_FILTER_TRILINEAR) {
SDL_GL_BindTexture(screen->texture, NULL, NULL);
screen->gl.GenerateMipmap(GL_TEXTURE_2D);
SDL_GL_UnbindTexture(screen->texture);
}
}
}
static bool
screen_update_frame(struct screen *screen) {
const AVFrame *frame = video_buffer_consumer_take_frame(screen->vb);
struct video_buffer *vb = screen->use_swscale ? &screen->resizer_vb
: screen->vb;
const AVFrame *frame = video_buffer_consumer_take_frame(vb);
fps_counter_add_rendered_frame(screen->fps_counter);