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 inline void render_item(struct obs_scene_item *item) { if (item->item_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->item_render, cx, cy)) { float cx_scale = (float)width / (float)cx; float cy_scale = (float)height / (float)cy; struct vec4 clear_color; vec4_zero(&clear_color); gs_clear(GS_CLEAR_COLOR, &clear_color, 0.0f, 0); gs_ortho(0.0f, (float)width, 0.0f, (float)height, -100.0f, 100.0f); 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->item_render); } } gs_matrix_push(); gs_matrix_mul(&item->draw_transform); if (item->item_render) { render_item_texture(item); } else { obs_source_video_render(item->source); } gs_matrix_pop(); }
static void update_item_transform(struct obs_scene_item *item) { 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); struct vec2 base_origin; struct vec2 origin; struct vec2 scale = item->scale; struct calldata params; uint8_t stack[128]; if (os_atomic_load_long(&item->defer_update) > 0) return; width = cx; height = cy; vec2_zero(&base_origin); vec2_zero(&origin); /* ----------------------- */ if (item->bounds_type != OBS_BOUNDS_NONE) { calculate_bounds_data(item, &origin, &scale, &cx, &cy); } else { cx = (uint32_t)((float)cx * scale.x); cy = (uint32_t)((float)cy * scale.y); } add_alignment(&origin, item->align, (int)cx, (int)cy); matrix4_identity(&item->draw_transform); matrix4_scale3f(&item->draw_transform, &item->draw_transform, scale.x, scale.y, 1.0f); matrix4_translate3f(&item->draw_transform, &item->draw_transform, -origin.x, -origin.y, 0.0f); matrix4_rotate_aa4f(&item->draw_transform, &item->draw_transform, 0.0f, 0.0f, 1.0f, RAD(item->rot)); matrix4_translate3f(&item->draw_transform, &item->draw_transform, item->pos.x, item->pos.y, 0.0f); item->output_scale = scale; /* ----------------------- */ if (item->bounds_type != OBS_BOUNDS_NONE) { vec2_copy(&scale, &item->bounds); } else { scale.x = (float)width * item->scale.x; scale.y = (float)height * item->scale.y; } add_alignment(&base_origin, item->align, (int)scale.x, (int)scale.y); matrix4_identity(&item->box_transform); matrix4_scale3f(&item->box_transform, &item->box_transform, scale.x, scale.y, 1.0f); matrix4_translate3f(&item->box_transform, &item->box_transform, -base_origin.x, -base_origin.y, 0.0f); matrix4_rotate_aa4f(&item->box_transform, &item->box_transform, 0.0f, 0.0f, 1.0f, RAD(item->rot)); matrix4_translate3f(&item->box_transform, &item->box_transform, item->pos.x, item->pos.y, 0.0f); /* ----------------------- */ item->last_width = width; item->last_height = height; calldata_init_fixed(¶ms, stack, sizeof(stack)); calldata_set_ptr(¶ms, "scene", item->parent); calldata_set_ptr(¶ms, "item", item); signal_handler_signal(item->parent->source->context.signals, "item_transform", ¶ms); }