OBS/obs-studio
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make direct filter rendering optional (can be useful for certain cases)

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This commit is contained in:
jp9000 2013-12-22 02:03:40 -07:00
parent bd47d9fe74
commit 922eb7b8e8
3 changed files with 17 additions and 5 deletions
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12
libobs/obs-source.c
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@ -968,7 +968,8 @@ static inline void render_filter_tex(texture_t tex, effect_t effect,
}
void obs_source_process_filter(obs_source_t filter, texrender_t texrender,
effect_t effect, uint32_t width, uint32_t height)
effect_t effect, uint32_t width, uint32_t height,
enum allow_direct_render allow_direct)
{
obs_source_t target = obs_filter_gettarget(filter);
obs_source_t parent = obs_filter_getparent(filter);
@ -977,19 +978,24 @@ void obs_source_process_filter(obs_source_t filter, texrender_t texrender,
int cx = obs_source_getwidth(target);
int cy = obs_source_getheight(target);
bool yuv = (target_flags & SOURCE_YUV) != 0;
bool expects_def = (parent_flags & SOURCE_DEFAULT_EFFECT) != 0;
bool can_directly = allow_direct == ALLOW_DIRECT_RENDERING;
/* if the parent does not use any custom effects, and this is the last
* filter in the chain for the parent, then render the parent directly
* using the filter effect instead of rendering to texture to reduce
* the total number of passes */
if ((parent_flags & SOURCE_DEFAULT_EFFECT) != 0 && target == parent) {
if (can_directly && expects_def && target == parent) {
render_filter_bypass(target, effect, width, height, yuv);
return;
}
if (texrender_begin(texrender, cx, cy)) {
gs_ortho(0.0f, (float)cx, 0.0f, (float)cy, -100.0f, 100.0f);
obs_source_video_render(target);
if (expects_def && parent == target)
obs_source_default_render(parent, yuv);
else
obs_source_video_render(target);
texrender_end(texrender);
}

8
libobs/obs.h
View file

@ -60,6 +60,11 @@ enum order_movement {
ORDER_MOVE_BOTTOM
};
enum allow_direct_render {
NO_DIRECT_RENDERING,
ALLOW_DIRECT_RENDERING,
};
struct obs_video_info {
/* graphics module to use (usually "libobs-opengl" or "libobs-d3d11") */
const char *graphics_module;
@ -412,7 +417,8 @@ EXPORT void obs_source_releaseframe(obs_source_t source,
/** Default RGB filter handler for generic effect filters */
EXPORT void obs_source_process_filter(obs_source_t filter,
texrender_t texrender, effect_t effect,
uint32_t width, uint32_t height);
uint32_t width, uint32_t height,
enum allow_direct_render allow_direct);
/* ------------------------------------------------------------------------- */

2
test/test-input/test-filter.c
View file

@ -56,5 +56,5 @@ void test_video_tick(struct test_filter *tf, float seconds)
void test_video_render(struct test_filter *tf)
{
obs_source_process_filter(tf->source, tf->texrender, tf->whatever,
0, 0);
0, 0, ALLOW_DIRECT_RENDERING);
}