static inline void obs_source_draw_texture(struct obs_source *source,
effect_t effect, float *color_matrix,
float const *color_range_min, float const *color_range_max)
{
texture_t tex = source->async_texture;
eparam_t param;
if (source->async_convert_texrender)
tex = texrender_gettexture(source->async_convert_texrender);
if (color_range_min) {
size_t const size = sizeof(float) * 3;
param = effect_getparambyname(effect, "color_range_min");
effect_setval(effect, param, color_range_min, size);
}
if (color_range_max) {
size_t const size = sizeof(float) * 3;
param = effect_getparambyname(effect, "color_range_max");
effect_setval(effect, param, color_range_max, size);
}
if (color_matrix) {
param = effect_getparambyname(effect, "color_matrix");
effect_setval(effect, param, color_matrix, sizeof(float) * 16);
}
param = effect_getparambyname(effect, "image");
effect_settexture(effect, param, tex);
gs_draw_sprite(tex, source->async_flip ? GS_FLIP_V : 0, 0, 0);
}
static void obs_source_draw_texture(texture_t tex, struct source_frame *frame)
{
effect_t effect = obs->video.default_effect;
bool yuv = is_yuv(frame->format);
const char *type = yuv ? "DrawYUV" : "DrawRGB";
technique_t tech;
eparam_t param;
if (!upload_frame(tex, frame))
return;
tech = effect_gettechnique(effect, type);
technique_begin(tech);
technique_beginpass(tech, 0);
if (yuv) {
param = effect_getparambyname(effect, "yuv_matrix");
effect_setval(effect, param, frame->yuv_matrix,
sizeof(float) * 16);
}
param = effect_getparambyname(effect, "diffuse");
effect_settexture(effect, param, tex);
gs_draw_sprite(tex, frame->flip ? GS_FLIP_V : 0, 0, 0);
technique_endpass(tech);
technique_end(tech);
}
static inline void render_output_texture(struct obs_core_video *video,
int cur_texture, int prev_texture)
{
texture_t texture = video->render_textures[prev_texture];
texture_t target = video->output_textures[cur_texture];
uint32_t width = texture_getwidth(target);
uint32_t height = texture_getheight(target);
/* TODO: replace with actual downscalers or unpackers */
effect_t effect = video->default_effect;
technique_t tech = effect_gettechnique(effect, "DrawMatrix");
eparam_t image = effect_getparambyname(effect, "image");
eparam_t matrix = effect_getparambyname(effect, "color_matrix");
size_t passes, i;
if (!video->textures_rendered[prev_texture])
return;
gs_setrendertarget(target, NULL);
set_render_size(width, height);
/* TODO: replace with programmable code */
const float mat_val[16] =
{
-0.100644f, -0.338572f, 0.439216f, 0.501961f,
0.182586f, 0.614231f, 0.062007f, 0.062745f,
0.439216f, -0.398942f, -0.040274f, 0.501961f,
0.000000f, 0.000000f, 0.000000f, 1.000000f
};
effect_setval(effect, matrix, mat_val, sizeof(mat_val));
effect_settexture(effect, image, texture);
passes = technique_begin(tech);
for (i = 0; i < passes; i++) {
technique_beginpass(tech, i);
gs_draw_sprite(texture, 0, width, height);
technique_endpass(tech);
}
technique_end(tech);
video->textures_output[cur_texture] = true;
}
