static bool update_async_texrender(struct obs_source *source,
const struct source_frame *frame)
{
texture_t tex = source->async_texture;
texrender_t texrender = source->async_convert_texrender;
texrender_reset(texrender);
upload_raw_frame(tex, frame);
uint32_t cx = source->async_width;
uint32_t cy = source->async_height;
effect_t conv = obs->video.conversion_effect;
technique_t tech = effect_gettechnique(conv,
select_conversion_technique(frame->format));
if (!texrender_begin(texrender, cx, cy))
return false;
technique_begin(tech);
technique_beginpass(tech, 0);
effect_settexture(conv, effect_getparambyname(conv, "image"),
tex);
set_eparam(conv, "width", (float)cx);
set_eparam(conv, "height", (float)cy);
set_eparam(conv, "width_i", 1.0f / cx);
set_eparam(conv, "height_i", 1.0f / cy);
set_eparam(conv, "width_d2", cx * 0.5f);
set_eparam(conv, "height_d2", cy * 0.5f);
set_eparam(conv, "width_d2_i", 1.0f / (cx * 0.5f));
set_eparam(conv, "height_d2_i", 1.0f / (cy * 0.5f));
set_eparam(conv, "input_height", (float)cy);
gs_ortho(0.f, (float)cx, 0.f, (float)cy, -100.f, 100.f);
gs_draw_sprite(tex, 0, cx, cy);
technique_endpass(tech);
technique_end(tech);
texrender_end(texrender);
return true;
}
static void render_convert_texture(struct obs_core_video *video,
int cur_texture, int prev_texture)
{
gs_texture_t *texture = video->output_textures[prev_texture];
gs_texture_t *target = video->convert_textures[cur_texture];
float fwidth = (float)video->output_width;
float fheight = (float)video->output_height;
size_t passes, i;
gs_effect_t *effect = video->conversion_effect;
gs_eparam_t *image = gs_effect_get_param_by_name(effect, "image");
gs_technique_t *tech = gs_effect_get_technique(effect,
video->conversion_tech);
if (!video->textures_output[prev_texture])
return;
set_eparam(effect, "u_plane_offset", (float)video->plane_offsets[1]);
set_eparam(effect, "v_plane_offset", (float)video->plane_offsets[2]);
set_eparam(effect, "width", fwidth);
set_eparam(effect, "height", fheight);
set_eparam(effect, "width_i", 1.0f / fwidth);
set_eparam(effect, "height_i", 1.0f / fheight);
set_eparam(effect, "width_d2", fwidth * 0.5f);
set_eparam(effect, "height_d2", fheight * 0.5f);
set_eparam(effect, "width_d2_i", 1.0f / (fwidth * 0.5f));
set_eparam(effect, "height_d2_i", 1.0f / (fheight * 0.5f));
set_eparam(effect, "input_height", (float)video->conversion_height);
gs_effect_set_texture(image, texture);
gs_set_render_target(target, NULL);
set_render_size(video->output_width, video->conversion_height);
gs_enable_blending(false);
passes = gs_technique_begin(tech);
for (i = 0; i < passes; i++) {
gs_technique_begin_pass(tech, i);
gs_draw_sprite(texture, 0, video->output_width,
video->conversion_height);
gs_technique_end_pass(tech);
}
gs_technique_end(tech);
gs_enable_blending(true);
video->textures_converted[cur_texture] = true;
}
