static inline void render_item(struct obs_scene_item *item) { if (item->crop_render) { uint32_t width = obs_source_get_width(item->source); uint32_t height = obs_source_get_height(item->source); uint32_t cx = calc_cx(item, width); uint32_t cy = calc_cy(item, height); if (cx && cy && gs_texrender_begin(item->crop_render, cx, cy)) { float cx_scale = (float)width / (float)cx; float cy_scale = (float)height / (float)cy; gs_matrix_scale3f(cx_scale, cy_scale, 1.0f); gs_matrix_translate3f( -(float)item->crop.left, -(float)item->crop.top, 0.0f); obs_source_video_render(item->source); gs_texrender_end(item->crop_render); } } gs_matrix_push(); gs_matrix_mul(&item->draw_transform); if (item->crop_render) { gs_texture_t *tex = gs_texrender_get_texture(item->crop_render); while (gs_effect_loop(obs->video.default_effect, "Draw")) obs_source_draw(tex, 0, 0, 0, 0, 0); } else { obs_source_video_render(item->source); } gs_matrix_pop(); }
static void duplicator_capture_render(void *data, gs_effect_t *effect) { struct duplicator_capture *capture = data; gs_texture_t *texture; int rot; if (!capture->duplicator) return; texture = gs_duplicator_get_texture(capture->duplicator); if (!texture) return; effect = obs_get_base_effect(OBS_EFFECT_OPAQUE); rot = capture->rot; while (gs_effect_loop(effect, "Draw")) { if (rot != 0) { float x = 0.0f; float y = 0.0f; switch (rot) { case 90: x = (float)capture->height; break; case 180: x = (float)capture->width; y = (float)capture->height; break; case 270: y = (float)capture->width; break; } gs_matrix_push(); gs_matrix_translate3f(x, y, 0.0f); gs_matrix_rotaa4f(0.0f, 0.0f, 1.0f, RAD((float)rot)); } obs_source_draw(texture, 0, 0, 0, 0, false); if (rot != 0) gs_matrix_pop(); } if (capture->capture_cursor) { effect = obs_get_base_effect(OBS_EFFECT_DEFAULT); while (gs_effect_loop(effect, "Draw")) { draw_cursor(capture); } } }
static void render_item_texture(struct obs_scene_item *item) { gs_texture_t *tex = gs_texrender_get_texture(item->item_render); gs_effect_t *effect = obs->video.default_effect; enum obs_scale_type type = item->scale_filter; uint32_t cx = gs_texture_get_width(tex); uint32_t cy = gs_texture_get_height(tex); if (type != OBS_SCALE_DISABLE) { if (type == OBS_SCALE_POINT) { gs_eparam_t *image = gs_effect_get_param_by_name( effect, "image"); gs_effect_set_next_sampler(image, obs->video.point_sampler); } else if (!close_float(item->output_scale.x, 1.0f, EPSILON) || !close_float(item->output_scale.y, 1.0f, EPSILON)) { gs_eparam_t *scale_param; if (item->output_scale.x < 0.5f || item->output_scale.y < 0.5f) { effect = obs->video.bilinear_lowres_effect; } else if (type == OBS_SCALE_BICUBIC) { effect = obs->video.bicubic_effect; } else if (type == OBS_SCALE_LANCZOS) { effect = obs->video.lanczos_effect; } scale_param = gs_effect_get_param_by_name(effect, "base_dimension_i"); if (scale_param) { struct vec2 base_res_i = { 1.0f / (float)cx, 1.0f / (float)cy }; gs_effect_set_vec2(scale_param, &base_res_i); } } } while (gs_effect_loop(effect, "Draw")) obs_source_draw(tex, 0, 0, 0, 0, 0); }