/** * @file lv_draw_img.c * */ /********************* * INCLUDES *********************/ #include "lv_draw_img.h" #include "lv_img_cache.h" #include "../lv_hal/lv_hal_disp.h" #include "../lv_misc/lv_log.h" #include "../lv_core/lv_refr.h" #include "../lv_misc/lv_mem.h" #include "../lv_misc/lv_math.h" #if LV_USE_GPU_STM32_DMA2D #include "../lv_gpu/lv_gpu_stm32_dma2d.h" #elif LV_USE_GPU_NXP_PXP #include "../lv_gpu/lv_gpu_nxp_pxp.h" #endif /********************* * DEFINES *********************/ /********************** * TYPEDEFS **********************/ /********************** * STATIC PROTOTYPES **********************/ LV_ATTRIBUTE_FAST_MEM static lv_res_t lv_img_draw_core(const lv_area_t *coords, const lv_area_t *clip_area, const void *src, const lv_draw_img_dsc_t *draw_dsc); LV_ATTRIBUTE_FAST_MEM static void lv_draw_map(const lv_area_t *map_area, const lv_area_t *clip_area, const uint8_t *map_p, const lv_draw_img_dsc_t *draw_dsc, bool chroma_key, bool alpha_byte); static void show_error(const lv_area_t *coords, const lv_area_t *clip_area, const char *msg); static void draw_cleanup(lv_img_cache_entry_t *cache); /********************** * STATIC VARIABLES **********************/ /********************** * MACROS **********************/ /********************** * GLOBAL FUNCTIONS **********************/ void lv_draw_img_dsc_init(lv_draw_img_dsc_t *dsc) { _lv_memset_00(dsc, sizeof(lv_draw_img_dsc_t)); dsc->recolor = LV_COLOR_BLACK; dsc->opa = LV_OPA_COVER; dsc->zoom = LV_IMG_ZOOM_NONE; dsc->antialias = LV_ANTIALIAS; } /** * Draw an image * @param coords the coordinates of the image * @param mask the image will be drawn only in this area * @param src pointer to a lv_color_t array which contains the pixels of the image * @param dsc pointer to an initialized `lv_draw_img_dsc_t` variable */ void lv_draw_img(const lv_area_t *coords, const lv_area_t *mask, const void *src, const lv_draw_img_dsc_t *dsc) { if (src == NULL) { LV_LOG_WARN("Image draw: src is NULL"); show_error(coords, mask, "No\ndata"); return; } if (dsc->opa <= LV_OPA_MIN) { return; } lv_res_t res; res = lv_img_draw_core(coords, mask, src, dsc); if (res == LV_RES_INV) { LV_LOG_WARN("Image draw error"); show_error(coords, mask, "No\ndata"); return; } } /** * Get the pixel size of a color format in bits * @param cf a color format (`LV_IMG_CF_...`) * @return the pixel size in bits */ uint8_t lv_img_cf_get_px_size(lv_img_cf_t cf) { uint8_t px_size = 0; switch (cf) { case LV_IMG_CF_UNKNOWN: case LV_IMG_CF_RAW: px_size = 0; break; case LV_IMG_CF_TRUE_COLOR: case LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED: px_size = LV_COLOR_SIZE; break; case LV_IMG_CF_TRUE_COLOR_ALPHA: px_size = LV_IMG_PX_SIZE_ALPHA_BYTE << 3; break; case LV_IMG_CF_INDEXED_1BIT: case LV_IMG_CF_ALPHA_1BIT: px_size = 1; break; case LV_IMG_CF_INDEXED_2BIT: case LV_IMG_CF_ALPHA_2BIT: px_size = 2; break; case LV_IMG_CF_INDEXED_4BIT: case LV_IMG_CF_ALPHA_4BIT: px_size = 4; break; case LV_IMG_CF_INDEXED_8BIT: case LV_IMG_CF_ALPHA_8BIT: px_size = 8; break; default: px_size = 0; break; } return px_size; } /** * Check if a color format is chroma keyed or not * @param cf a color format (`LV_IMG_CF_...`) * @return true: chroma keyed; false: not chroma keyed */ bool lv_img_cf_is_chroma_keyed(lv_img_cf_t cf) { bool is_chroma_keyed = false; switch (cf) { case LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED: case LV_IMG_CF_RAW_CHROMA_KEYED: case LV_IMG_CF_INDEXED_1BIT: case LV_IMG_CF_INDEXED_2BIT: case LV_IMG_CF_INDEXED_4BIT: case LV_IMG_CF_INDEXED_8BIT: is_chroma_keyed = true; break; default: is_chroma_keyed = false; break; } return is_chroma_keyed; } /** * Check if a color format has alpha channel or not * @param cf a color format (`LV_IMG_CF_...`) * @return true: has alpha channel; false: doesn't have alpha channel */ bool lv_img_cf_has_alpha(lv_img_cf_t cf) { bool has_alpha = false; switch (cf) { case LV_IMG_CF_TRUE_COLOR_ALPHA: case LV_IMG_CF_RAW_ALPHA: case LV_IMG_CF_INDEXED_1BIT: case LV_IMG_CF_INDEXED_2BIT: case LV_IMG_CF_INDEXED_4BIT: case LV_IMG_CF_INDEXED_8BIT: case LV_IMG_CF_ALPHA_1BIT: case LV_IMG_CF_ALPHA_2BIT: case LV_IMG_CF_ALPHA_4BIT: case LV_IMG_CF_ALPHA_8BIT: has_alpha = true; break; default: has_alpha = false; break; } return has_alpha; } /** * Get the type of an image source * @param src pointer to an image source: * - pointer to an 'lv_img_t' variable (image stored internally and compiled into the code) * - a path to a file (e.g. "S:/folder/image.bin") * - or a symbol (e.g. LV_SYMBOL_CLOSE) * @return type of the image source LV_IMG_SRC_VARIABLE/FILE/SYMBOL/UNKNOWN */ lv_img_src_t lv_img_src_get_type(const void *src) { lv_img_src_t img_src_type = LV_IMG_SRC_UNKNOWN; if (src == NULL) { return img_src_type; } const uint8_t *u8_p = src; /*The first byte shows the type of the image source*/ if (u8_p[0] >= 0x20 && u8_p[0] <= 0x7F) { img_src_type = LV_IMG_SRC_FILE; /*If it's an ASCII character then it's file name*/ } else if (u8_p[0] >= 0x80) { img_src_type = LV_IMG_SRC_SYMBOL; /*Symbols begins after 0x7F*/ } else { img_src_type = LV_IMG_SRC_VARIABLE; /*`lv_img_dsc_t` is design to the first byte < 0x20*/ } if (LV_IMG_SRC_UNKNOWN == img_src_type) { LV_LOG_WARN("lv_img_src_get_type: unknown image type"); } return img_src_type; } /********************** * STATIC FUNCTIONS **********************/ LV_ATTRIBUTE_FAST_MEM static lv_res_t lv_img_draw_core(const lv_area_t *coords, const lv_area_t *clip_area, const void *src, const lv_draw_img_dsc_t *draw_dsc) { if (draw_dsc->opa <= LV_OPA_MIN) { return LV_RES_OK; } lv_img_cache_entry_t *cdsc = _lv_img_cache_open(src, draw_dsc->recolor); if (cdsc == NULL) { return LV_RES_INV; } bool chroma_keyed = lv_img_cf_is_chroma_keyed(cdsc->dec_dsc.header.cf); bool alpha_byte = lv_img_cf_has_alpha(cdsc->dec_dsc.header.cf); if (cdsc->dec_dsc.error_msg != NULL) { LV_LOG_WARN("Image draw error"); show_error(coords, clip_area, cdsc->dec_dsc.error_msg); } /* The decoder could open the image and gave the entire uncompressed image. * Just draw it!*/ else if (cdsc->dec_dsc.img_data) { lv_area_t map_area_rot; lv_area_copy(&map_area_rot, coords); if (draw_dsc->angle || draw_dsc->zoom != LV_IMG_ZOOM_NONE) { int32_t w = lv_area_get_width(coords); int32_t h = lv_area_get_height(coords); _lv_img_buf_get_transformed_area(&map_area_rot, w, h, draw_dsc->angle, draw_dsc->zoom, &draw_dsc->pivot); map_area_rot.x1 += coords->x1; map_area_rot.y1 += coords->y1; map_area_rot.x2 += coords->x1; map_area_rot.y2 += coords->y1; } lv_area_t mask_com; /*Common area of mask and coords*/ bool union_ok; union_ok = _lv_area_intersect(&mask_com, clip_area, &map_area_rot); /*Out of mask. There is nothing to draw so the image is drawn successfully.*/ if (union_ok == false) { draw_cleanup(cdsc); return LV_RES_OK; } lv_draw_map(coords, &mask_com, cdsc->dec_dsc.img_data, draw_dsc, chroma_keyed, alpha_byte); } /* The whole uncompressed image is not available. Try to read it line-by-line*/ else { lv_area_t mask_com; /*Common area of mask and coords*/ bool union_ok; union_ok = _lv_area_intersect(&mask_com, clip_area, coords); /*Out of mask. There is nothing to draw so the image is drawn successfully.*/ if (union_ok == false) { draw_cleanup(cdsc); return LV_RES_OK; } int32_t width = lv_area_get_width(&mask_com); uint8_t *buf = _lv_mem_buf_get(lv_area_get_width(&mask_com) * LV_IMG_PX_SIZE_ALPHA_BYTE); /*+1 because of the possible alpha byte*/ lv_area_t line; lv_area_copy(&line, &mask_com); lv_area_set_height(&line, 1); int32_t x = mask_com.x1 - coords->x1; int32_t y = mask_com.y1 - coords->y1; int32_t row; lv_res_t read_res; for (row = mask_com.y1; row <= mask_com.y2; row++) { lv_area_t mask_line; union_ok = _lv_area_intersect(&mask_line, clip_area, &line); if (union_ok == false) { continue; } read_res = lv_img_decoder_read_line(&cdsc->dec_dsc, x, y, width, buf); if (read_res != LV_RES_OK) { lv_img_decoder_close(&cdsc->dec_dsc); LV_LOG_WARN("Image draw can't read the line"); _lv_mem_buf_release(buf); draw_cleanup(cdsc); return LV_RES_INV; } lv_draw_map(&line, &mask_line, buf, draw_dsc, chroma_keyed, alpha_byte); line.y1++; line.y2++; y++; } _lv_mem_buf_release(buf); } draw_cleanup(cdsc); return LV_RES_OK; } /** * Draw a color map to the display (image) * @param cords_p coordinates the color map * @param mask_p the map will drawn only on this area (truncated to VDB area) * @param map_p pointer to a lv_color_t array * @param draw_dsc pointer to an initialized `lv_draw_img_dsc_t` variable * @param chroma_keyed true: enable transparency of LV_IMG_LV_COLOR_TRANSP color pixels * @param alpha_byte true: extra alpha byte is inserted for every pixel */ LV_ATTRIBUTE_FAST_MEM static void lv_draw_map(const lv_area_t *map_area, const lv_area_t *clip_area, const uint8_t *map_p, const lv_draw_img_dsc_t *draw_dsc, bool chroma_key, bool alpha_byte) { /* Use the clip area as draw area*/ lv_area_t draw_area; lv_area_copy(&draw_area, clip_area); lv_disp_t *disp = _lv_refr_get_disp_refreshing(); lv_disp_buf_t *vdb = lv_disp_get_buf(disp); const lv_area_t *disp_area = &vdb->area; /* Now `draw_area` has absolute coordinates. * Make it relative to `disp_area` to simplify draw to `disp_buf`*/ draw_area.x1 -= disp_area->x1; draw_area.y1 -= disp_area->y1; draw_area.x2 -= disp_area->x1; draw_area.y2 -= disp_area->y1; uint8_t other_mask_cnt = lv_draw_mask_get_cnt(); /*The simplest case just copy the pixels into the VDB*/ if (other_mask_cnt == 0 && draw_dsc->angle == 0 && draw_dsc->zoom == LV_IMG_ZOOM_NONE && chroma_key == false && alpha_byte == false && draw_dsc->recolor_opa == LV_OPA_TRANSP) { _lv_blend_map(clip_area, map_area, (lv_color_t *)map_p, NULL, LV_DRAW_MASK_RES_FULL_COVER, draw_dsc->opa, draw_dsc->blend_mode); } #if LV_USE_GPU_NXP_PXP /* Simple case without masking and transformations */ else if (other_mask_cnt == 0 && draw_dsc->angle == 0 && draw_dsc->zoom == LV_IMG_ZOOM_NONE && alpha_byte == false && chroma_key == true && draw_dsc->recolor_opa == LV_OPA_TRANSP) /* copy with color keying (+ alpha) */ { lv_gpu_nxp_pxp_enable_color_key(); _lv_blend_map(clip_area, map_area, (lv_color_t *)map_p, NULL, LV_DRAW_MASK_RES_FULL_COVER, draw_dsc->opa, draw_dsc->blend_mode); lv_gpu_nxp_pxp_disable_color_key(); } else if (other_mask_cnt == 0 && draw_dsc->angle == 0 && draw_dsc->zoom == LV_IMG_ZOOM_NONE && alpha_byte == false && chroma_key == false && draw_dsc->recolor_opa != LV_OPA_TRANSP) /* copy with recolor (+ alpha) */ { lv_gpu_nxp_pxp_enable_recolor(draw_dsc->recolor, draw_dsc->recolor_opa); _lv_blend_map(clip_area, map_area, (lv_color_t *)map_p, NULL, LV_DRAW_MASK_RES_FULL_COVER, draw_dsc->opa, draw_dsc->blend_mode); lv_gpu_nxp_pxp_disable_recolor(); } #endif /*In the other cases every pixel need to be checked one-by-one*/ else { /*The pixel size in byte is different if an alpha byte is added too*/ uint8_t px_size_byte = alpha_byte ? LV_IMG_PX_SIZE_ALPHA_BYTE : sizeof(lv_color_t); /*Go to the first displayed pixel of the map*/ int32_t map_w = lv_area_get_width(map_area); const uint8_t *map_buf_tmp = map_p; map_buf_tmp += map_w * (draw_area.y1 - (map_area->y1 - disp_area->y1)) * px_size_byte; map_buf_tmp += (draw_area.x1 - (map_area->x1 - disp_area->x1)) * px_size_byte; lv_color_t c; lv_color_t chroma_keyed_color = LV_COLOR_TRANSP; uint32_t px_i = 0; const uint8_t *map_px; lv_area_t blend_area; blend_area.x1 = draw_area.x1 + disp_area->x1; blend_area.x2 = blend_area.x1 + lv_area_get_width(&draw_area) - 1; blend_area.y1 = disp_area->y1 + draw_area.y1; blend_area.y2 = blend_area.y1; lv_coord_t draw_area_h = lv_area_get_height(&draw_area); lv_coord_t draw_area_w = lv_area_get_width(&draw_area); #if LV_USE_IMG_TRANSFORM bool transform = draw_dsc->angle != 0 || draw_dsc->zoom != LV_IMG_ZOOM_NONE ? true : false; #else bool transform = false; #endif /*Simple ARGB image. Handle it as special case because it's very common*/ if (other_mask_cnt == 0 && !transform && !chroma_key && draw_dsc->recolor_opa == LV_OPA_TRANSP && alpha_byte) { #if LV_USE_GPU_STM32_DMA2D && LV_COLOR_DEPTH == 32 /*Blend ARGB images directly*/ if (lv_area_get_size(&draw_area) > 240) { int32_t disp_w = lv_area_get_width(disp_area); lv_color_t *disp_buf = vdb->buf_act; lv_color_t *disp_buf_first = disp_buf + disp_w * draw_area.y1 + draw_area.x1; lv_gpu_stm32_dma2d_blend(disp_buf_first, disp_w, (const lv_color_t *)map_buf_tmp, draw_dsc->opa, map_w, draw_area_w, draw_area_h); return; } #endif uint32_t hor_res = (uint32_t)lv_disp_get_hor_res(disp); uint32_t mask_buf_size = lv_area_get_size(&draw_area) > (uint32_t)hor_res ? hor_res : lv_area_get_size(&draw_area); lv_color_t *map2 = _lv_mem_buf_get(mask_buf_size * sizeof(lv_color_t)); lv_opa_t *mask_buf = _lv_mem_buf_get(mask_buf_size); int32_t x; int32_t y; for (y = 0; y < draw_area_h; y++) { map_px = map_buf_tmp; for (x = 0; x < draw_area_w; x++, map_px += px_size_byte, px_i++) { lv_opa_t px_opa = map_px[LV_IMG_PX_SIZE_ALPHA_BYTE - 1]; mask_buf[px_i] = px_opa; if (px_opa) { #if LV_COLOR_DEPTH == 8 || LV_COLOR_DEPTH == 1 map2[px_i].full = map_px[0]; #elif LV_COLOR_DEPTH == 16 map2[px_i].full = map_px[0] + (map_px[1] << 8); #elif LV_COLOR_DEPTH == 32 map2[px_i].full = *((uint32_t *)map_px); #endif } #if LV_COLOR_DEPTH == 32 map2[px_i].ch.alpha = 0xFF; #endif } map_buf_tmp += map_w * px_size_byte; if (px_i + lv_area_get_width(&draw_area) < mask_buf_size) { blend_area.y2++; } else { _lv_blend_map(clip_area, &blend_area, map2, mask_buf, LV_DRAW_MASK_RES_CHANGED, draw_dsc->opa, draw_dsc->blend_mode); blend_area.y1 = blend_area.y2 + 1; blend_area.y2 = blend_area.y1; px_i = 0; } } /*Flush the last part*/ if (blend_area.y1 != blend_area.y2) { blend_area.y2--; _lv_blend_map(clip_area, &blend_area, map2, mask_buf, LV_DRAW_MASK_RES_CHANGED, draw_dsc->opa, draw_dsc->blend_mode); } _lv_mem_buf_release(mask_buf); _lv_mem_buf_release(map2); } /*Most complicated case: transform or other mask or chroma keyed*/ else { /*Build the image and a mask line-by-line*/ uint32_t hor_res = (uint32_t)lv_disp_get_hor_res(disp); uint32_t mask_buf_size = lv_area_get_size(&draw_area) > hor_res ? hor_res : lv_area_get_size(&draw_area); lv_color_t *map2 = _lv_mem_buf_get(mask_buf_size * sizeof(lv_color_t)); lv_opa_t *mask_buf = _lv_mem_buf_get(mask_buf_size); #if LV_USE_IMG_TRANSFORM lv_img_transform_dsc_t trans_dsc; _lv_memset_00(&trans_dsc, sizeof(lv_img_transform_dsc_t)); if (transform) { lv_img_cf_t cf = LV_IMG_CF_TRUE_COLOR; if (alpha_byte) { cf = LV_IMG_CF_TRUE_COLOR_ALPHA; } else if (chroma_key) { cf = LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED; } trans_dsc.cfg.angle = draw_dsc->angle; trans_dsc.cfg.zoom = draw_dsc->zoom; trans_dsc.cfg.src = map_p; trans_dsc.cfg.src_w = map_w; trans_dsc.cfg.src_h = lv_area_get_height(map_area); ; trans_dsc.cfg.cf = cf; trans_dsc.cfg.pivot_x = draw_dsc->pivot.x; trans_dsc.cfg.pivot_y = draw_dsc->pivot.y; trans_dsc.cfg.color = draw_dsc->recolor; trans_dsc.cfg.antialias = draw_dsc->antialias; _lv_img_buf_transform_init(&trans_dsc); } #endif uint16_t recolor_premult[3] = { 0 }; lv_opa_t recolor_opa_inv = 255 - draw_dsc->recolor_opa; if (draw_dsc->recolor_opa != 0) { lv_color_premult(draw_dsc->recolor, draw_dsc->recolor_opa, recolor_premult); } lv_draw_mask_res_t mask_res; mask_res = (alpha_byte || chroma_key || draw_dsc->angle || draw_dsc->zoom != LV_IMG_ZOOM_NONE) ? LV_DRAW_MASK_RES_CHANGED : LV_DRAW_MASK_RES_FULL_COVER; /*Prepare the `mask_buf`if there are other masks*/ if (other_mask_cnt) { _lv_memset_ff(mask_buf, mask_buf_size); } int32_t x; int32_t y; #if LV_USE_IMG_TRANSFORM int32_t rot_y = disp_area->y1 + draw_area.y1 - map_area->y1; #endif for (y = 0; y < draw_area_h; y++) { map_px = map_buf_tmp; uint32_t px_i_start = px_i; #if LV_USE_IMG_TRANSFORM int32_t rot_x = disp_area->x1 + draw_area.x1 - map_area->x1; #endif for (x = 0; x < draw_area_w; x++, map_px += px_size_byte, px_i++) { #if LV_USE_IMG_TRANSFORM if (transform) { /*Transform*/ bool ret; ret = _lv_img_buf_transform(&trans_dsc, rot_x + x, rot_y + y); if (ret == false) { mask_buf[px_i] = LV_OPA_TRANSP; continue; } else { mask_buf[px_i] = trans_dsc.res.opa; c.full = trans_dsc.res.color.full; } } /*No transform*/ else #endif { if (alpha_byte) { lv_opa_t px_opa = map_px[LV_IMG_PX_SIZE_ALPHA_BYTE - 1]; mask_buf[px_i] = px_opa; if (px_opa == 0) { #if LV_COLOR_DEPTH == 32 map2[px_i].full = 0; #endif continue; } } else { mask_buf[px_i] = 0xFF; } #if LV_COLOR_DEPTH == 1 c.full = map_px[0]; #elif LV_COLOR_DEPTH == 8 c.full = map_px[0]; #elif LV_COLOR_DEPTH == 16 c.full = map_px[0] + (map_px[1] << 8); #elif LV_COLOR_DEPTH == 32 c.full = *((uint32_t *)map_px); c.ch.alpha = 0xFF; #endif if (chroma_key) { if (c.full == chroma_keyed_color.full) { mask_buf[px_i] = LV_OPA_TRANSP; #if LV_COLOR_DEPTH == 32 map2[px_i].full = 0; #endif continue; } } } if (draw_dsc->recolor_opa != 0) { c = lv_color_mix_premult(recolor_premult, c, recolor_opa_inv); } map2[px_i].full = c.full; } /*Apply the masks if any*/ if (other_mask_cnt) { lv_draw_mask_res_t mask_res_sub; mask_res_sub = lv_draw_mask_apply(mask_buf + px_i_start, draw_area.x1 + vdb->area.x1, y + draw_area.y1 + vdb->area.y1, lv_area_get_width(&draw_area)); if (mask_res_sub == LV_DRAW_MASK_RES_TRANSP) { _lv_memset_00(mask_buf + px_i_start, lv_area_get_width(&draw_area)); mask_res = LV_DRAW_MASK_RES_CHANGED; } else if (mask_res_sub == LV_DRAW_MASK_RES_CHANGED) { mask_res = LV_DRAW_MASK_RES_CHANGED; } } map_buf_tmp += map_w * px_size_byte; if (px_i + lv_area_get_width(&draw_area) < mask_buf_size) { blend_area.y2++; } else { _lv_blend_map(clip_area, &blend_area, map2, mask_buf, mask_res, draw_dsc->opa, draw_dsc->blend_mode); blend_area.y1 = blend_area.y2 + 1; blend_area.y2 = blend_area.y1; px_i = 0; mask_res = (alpha_byte || chroma_key || draw_dsc->angle || draw_dsc->zoom != LV_IMG_ZOOM_NONE) ? LV_DRAW_MASK_RES_CHANGED : LV_DRAW_MASK_RES_FULL_COVER; /*Prepare the `mask_buf`if there are other masks*/ if (other_mask_cnt) { _lv_memset_ff(mask_buf, mask_buf_size); } } } /*Flush the last part*/ if (blend_area.y1 != blend_area.y2) { blend_area.y2--; _lv_blend_map(clip_area, &blend_area, map2, mask_buf, mask_res, draw_dsc->opa, draw_dsc->blend_mode); } _lv_mem_buf_release(mask_buf); _lv_mem_buf_release(map2); } } } static void show_error(const lv_area_t *coords, const lv_area_t *clip_area, const char *msg) { lv_draw_rect_dsc_t rect_dsc; lv_draw_rect_dsc_init(&rect_dsc); rect_dsc.bg_color = LV_COLOR_WHITE; lv_draw_rect(coords, clip_area, &rect_dsc); lv_draw_label_dsc_t label_dsc; lv_draw_label_dsc_init(&label_dsc); lv_draw_label(coords, clip_area, &label_dsc, msg, NULL); } static void draw_cleanup(lv_img_cache_entry_t *cache) { /*Automatically close images with no caching*/ #if LV_IMG_CACHE_DEF_SIZE == 0 lv_img_decoder_close(&cache->dec_dsc); #else LV_UNUSED(cache); #endif }