1 /** 2 * @file lv_draw_vg_lite_layer.c 3 * 4 */ 5 6 /********************* 7 * INCLUDES 8 *********************/ 9 10 #include "lv_draw_vg_lite.h" 11 12 #if LV_USE_DRAW_VG_LITE 13 14 #include "lv_vg_lite_utils.h" 15 #include "lv_draw_vg_lite_type.h" 16 17 /********************* 18 * DEFINES 19 *********************/ 20 21 /********************** 22 * TYPEDEFS 23 **********************/ 24 25 /********************** 26 * STATIC PROTOTYPES 27 **********************/ 28 29 /********************** 30 * STATIC VARIABLES 31 **********************/ 32 33 /********************** 34 * MACROS 35 **********************/ 36 37 /********************** 38 * GLOBAL FUNCTIONS 39 **********************/ 40 lv_draw_vg_lite_layer(lv_draw_unit_t * draw_unit,const lv_draw_image_dsc_t * draw_dsc,const lv_area_t * coords)41void lv_draw_vg_lite_layer(lv_draw_unit_t * draw_unit, const lv_draw_image_dsc_t * draw_dsc, 42 const lv_area_t * coords) 43 { 44 lv_layer_t * layer = (lv_layer_t *)draw_dsc->src; 45 struct _lv_draw_vg_lite_unit_t * u = (struct _lv_draw_vg_lite_unit_t *)draw_unit; 46 47 /*It can happen that nothing was draw on a layer and therefore its buffer is not allocated. 48 *In this case just return. */ 49 if(layer->draw_buf == NULL) 50 return; 51 52 LV_PROFILER_DRAW_BEGIN; 53 54 /* The GPU output should already be premultiplied RGB */ 55 if(!lv_draw_buf_has_flag(layer->draw_buf, LV_IMAGE_FLAGS_PREMULTIPLIED)) { 56 LV_LOG_WARN("Non-premultiplied layer buffer for GPU to draw."); 57 } 58 59 lv_draw_image_dsc_t new_draw_dsc = *draw_dsc; 60 new_draw_dsc.src = layer->draw_buf; 61 lv_draw_vg_lite_img(draw_unit, &new_draw_dsc, coords, true); 62 63 /* Wait for the GPU drawing to complete here, 64 * otherwise it may cause the drawing to fail. */ 65 lv_vg_lite_finish(u); 66 67 LV_PROFILER_DRAW_END; 68 } 69 70 /********************** 71 * STATIC FUNCTIONS 72 **********************/ 73 74 #endif /*LV_USE_DRAW_VG_LITE*/ 75
