2  * @file lv_canvas.h
16 #include "../lv_conf_internal.h"
20 #include "../core/lv_obj.h"
21 #include "../widgets/lv_img.h"
22 #include "../draw/lv_draw_img.h"
57  * The required size is (lv_img_color_format_get_px_size(cf) * w) / 8 * h)
63  * @param h height of the canvas
66 void lv_canvas_set_buffer(lv_obj_t * canvas, void * buf, lv_coord_t w, lv_coord_t h, lv_img_cf_t cf…
138  * @param h height of the buffer to copy
141                         lv_coord_t h);
192  * @param h        height of the rectangle
195 void lv_canvas_draw_rect(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_coord_t w, lv_coord_t h,
257 #define LV_CANVAS_BUF_SIZE_TRUE_COLOR(w, h) LV_IMG_BUF_SIZE_TRUE_COLOR(w, h)  argument
258 …define LV_CANVAS_BUF_SIZE_TRUE_COLOR_CHROMA_KEYED(w, h) LV_IMG_BUF_SIZE_TRUE_COLOR_CHROMA_KEYED(w,…  argument
259 #define LV_CANVAS_BUF_SIZE_TRUE_COLOR_ALPHA(w, h) LV_IMG_BUF_SIZE_TRUE_COLOR_ALPHA(w, h)  argument
262 #define LV_CANVAS_BUF_SIZE_ALPHA_1BIT(w, h) LV_IMG_BUF_SIZE_ALPHA_1BIT(w, h)  argument
263 #define LV_CANVAS_BUF_SIZE_ALPHA_2BIT(w, h) LV_IMG_BUF_SIZE_ALPHA_2BIT(w, h)  argument
264 #define LV_CANVAS_BUF_SIZE_ALPHA_4BIT(w, h) LV_IMG_BUF_SIZE_ALPHA_4BIT(w, h)  argument
265 #define LV_CANVAS_BUF_SIZE_ALPHA_8BIT(w, h) LV_IMG_BUF_SIZE_ALPHA_8BIT(w, h)  argument
268 #define LV_CANVAS_BUF_SIZE_INDEXED_1BIT(w, h) LV_IMG_BUF_SIZE_INDEXED_1BIT(w, h)  argument
269 #define LV_CANVAS_BUF_SIZE_INDEXED_2BIT(w, h) LV_IMG_BUF_SIZE_INDEXED_2BIT(w, h)  argument
270 #define LV_CANVAS_BUF_SIZE_INDEXED_4BIT(w, h) LV_IMG_BUF_SIZE_INDEXED_4BIT(w, h)  argument
271 #define LV_CANVAS_BUF_SIZE_INDEXED_8BIT(w, h) LV_IMG_BUF_SIZE_INDEXED_8BIT(w, h)  argument