static void render_nv12(struct obs_core_video *video, gs_texture_t *target,
int cur_texture, int prev_texture, const char *tech_name,
uint32_t width, uint32_t height)
{
gs_texture_t *texture = video->output_textures[prev_texture];
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, tech_name);
size_t passes, i;
gs_effect_set_texture(image, texture);
gs_set_render_target(target, NULL);
set_render_size(width, 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, width, height);
gs_technique_end_pass(tech);
}
gs_technique_end(tech);
gs_enable_blending(true);
}
void draw_uv_vbuffer(gs_vertbuffer_t *vbuf, gs_texture_t *tex,
gs_effect_t *effect, uint32_t num_verts)
{
gs_texture_t *texture = tex;
gs_technique_t *tech = gs_effect_get_technique(effect, "Draw");
gs_eparam_t *image = gs_effect_get_param_by_name(effect, "image");
size_t passes;
if (vbuf == NULL || tex == NULL) return;
gs_vertexbuffer_flush(vbuf);
gs_load_vertexbuffer(vbuf);
gs_load_indexbuffer(NULL);
passes = gs_technique_begin(tech);
for (size_t i = 0; i < passes; i++) {
if (gs_technique_begin_pass(tech, i)) {
gs_effect_set_texture(image, texture);
gs_draw(GS_TRIS, 0, num_verts);
gs_technique_end_pass(tech);
}
}
gs_technique_end(tech);
}
static inline void render_output_texture(struct obs_core_video *video,
int cur_texture, int prev_texture)
{
profile_start(render_output_texture_name);
gs_texture_t *texture = video->render_textures[prev_texture];
gs_texture_t *target = video->output_textures[cur_texture];
uint32_t width = gs_texture_get_width(target);
uint32_t height = gs_texture_get_height(target);
struct vec2 base_i;
vec2_set(&base_i,
1.0f / (float)video->base_width,
1.0f / (float)video->base_height);
gs_effect_t *effect = get_scale_effect(video, width, height);
gs_technique_t *tech;
if (video->ovi.output_format == VIDEO_FORMAT_RGBA) {
tech = gs_effect_get_technique(effect, "Draw");
} else {
tech = gs_effect_get_technique(effect, "DrawMatrix");
}
gs_eparam_t *image = gs_effect_get_param_by_name(effect, "image");
gs_eparam_t *matrix = gs_effect_get_param_by_name(effect,
"color_matrix");
gs_eparam_t *bres_i = gs_effect_get_param_by_name(effect,
"base_dimension_i");
size_t passes, i;
if (!video->textures_rendered[prev_texture])
goto end;
gs_set_render_target(target, NULL);
set_render_size(width, height);
if (bres_i)
gs_effect_set_vec2(bres_i, &base_i);
gs_effect_set_val(matrix, video->color_matrix, sizeof(float) * 16);
gs_effect_set_texture(image, texture);
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, width, height);
gs_technique_end_pass(tech);
}
gs_technique_end(tech);
gs_enable_blending(true);
video->textures_output[cur_texture] = true;
end:
profile_end(render_output_texture_name);
}
static void render_convert_texture(struct obs_core_video *video,
int cur_texture, int prev_texture)
{
profile_start(render_convert_texture_name);
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])
goto end;
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;
end:
profile_end(render_convert_texture_name);
}
bool gs_effect_loop(gs_effect_t *effect, const char *name)
{
if (!effect) {
return false;
}
if (!effect->looping) {
gs_technique_t *tech;
if (!!gs_get_effect()) {
blog(LOG_WARNING, "gs_effect_loop: An effect is "
"already active");
return false;
}
tech = gs_effect_get_technique(effect, name);
if (!tech) {
blog(LOG_WARNING, "gs_effect_loop: Technique '%s' "
"not found.", name);
return false;
}
gs_technique_begin(tech);
effect->looping = true;
} else {
gs_technique_end_pass(effect->cur_technique);
}
if (!gs_technique_begin_pass(effect->cur_technique,
effect->loop_pass++)) {
gs_technique_end(effect->cur_technique);
effect->looping = false;
effect->loop_pass = 0;
return false;
}
return true;
}
static void draw_texture(struct dc_capture *capture, gs_effect_t *effect)
{
gs_texture_t *texture = capture->texture;
gs_technique_t *tech = gs_effect_get_technique(effect, "Draw");
gs_eparam_t *image = gs_effect_get_param_by_name(effect, "image");
size_t passes;
gs_effect_set_texture(image, texture);
passes = gs_technique_begin(tech);
for (size_t i = 0; i < passes; i++) {
if (gs_technique_begin_pass(tech, i)) {
if (capture->compatibility)
gs_draw_sprite(texture, GS_FLIP_V, 0, 0);
else
gs_draw_sprite(texture, 0, 0, 0);
gs_technique_end_pass(tech);
}
}
gs_technique_end(tech);
}