diff options
Diffstat (limited to 'firmware/drivers/lcd-16bit-common.c')
-rw-r--r-- | firmware/drivers/lcd-16bit-common.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/firmware/drivers/lcd-16bit-common.c b/firmware/drivers/lcd-16bit-common.c index 99cbe489fc..9d36499418 100644 --- a/firmware/drivers/lcd-16bit-common.c +++ b/firmware/drivers/lcd-16bit-common.c | |||
@@ -1362,3 +1362,69 @@ void lcd_blit_yuv(unsigned char * const src[3], | |||
1362 | lcd_update_rect(LCD_WIDTH - y - height, x, height, width); | 1362 | lcd_update_rect(LCD_WIDTH - y - height, x, height, width); |
1363 | #endif | 1363 | #endif |
1364 | } | 1364 | } |
1365 | |||
1366 | /* Fill a rectangle with a gradient. This function draws only the partial | ||
1367 | * gradient. It assumes the original gradient is src_height high and skips | ||
1368 | * the first few rows. This is useful for drawing only the bottom half of | ||
1369 | * a full gradient. | ||
1370 | * | ||
1371 | * height == src_height and row_skip == 0 will draw the full gradient | ||
1372 | * | ||
1373 | * x, y, width, height - dimensions describing the rectangle | ||
1374 | * start_rgb - beginning color of the gradient | ||
1375 | * end_rgb - end color of the gradient | ||
1376 | * src_height - assumed original height (only height rows will be drawn) | ||
1377 | * row_skip - how many rows of the original gradient to skip | ||
1378 | */ | ||
1379 | void lcd_gradient_fillrect_part(int x, int y, int width, int height, | ||
1380 | unsigned start_rgb, unsigned end_rgb, int src_height, int row_skip) | ||
1381 | { | ||
1382 | int old_pattern = current_vp->fg_pattern; | ||
1383 | int step_mul, i; | ||
1384 | int x1, x2; | ||
1385 | x1 = x; | ||
1386 | x2 = x + width; | ||
1387 | |||
1388 | if (height == 0) return; | ||
1389 | |||
1390 | step_mul = (1 << 16) / src_height; | ||
1391 | int h_r = RGB_UNPACK_RED(start_rgb); | ||
1392 | int h_g = RGB_UNPACK_GREEN(start_rgb); | ||
1393 | int h_b = RGB_UNPACK_BLUE(start_rgb); | ||
1394 | int rstep = (h_r - RGB_UNPACK_RED(end_rgb)) * step_mul; | ||
1395 | int gstep = (h_g - RGB_UNPACK_GREEN(end_rgb)) * step_mul; | ||
1396 | int bstep = (h_b - RGB_UNPACK_BLUE(end_rgb)) * step_mul; | ||
1397 | h_r = (h_r << 16) + (1 << 15); | ||
1398 | h_g = (h_g << 16) + (1 << 15); | ||
1399 | h_b = (h_b << 16) + (1 << 15); | ||
1400 | |||
1401 | if (row_skip > 0) | ||
1402 | { | ||
1403 | h_r -= rstep * row_skip; | ||
1404 | h_g -= gstep * row_skip; | ||
1405 | h_b -= bstep * row_skip; | ||
1406 | } | ||
1407 | |||
1408 | for(i = y; i < y + height; i++) { | ||
1409 | current_vp->fg_pattern = LCD_RGBPACK(h_r >> 16, h_g >> 16, h_b >> 16); | ||
1410 | lcd_hline(x1, x2, i); | ||
1411 | h_r -= rstep; | ||
1412 | h_g -= gstep; | ||
1413 | h_b -= bstep; | ||
1414 | } | ||
1415 | |||
1416 | current_vp->fg_pattern = old_pattern; | ||
1417 | } | ||
1418 | |||
1419 | /* Fill a rectangle with a gradient. The gradient's color will fade from | ||
1420 | * start_rgb to end_rgb over the height of the rectangle | ||
1421 | * | ||
1422 | * x, y, width, height - dimensions describing the rectangle | ||
1423 | * start_rgb - beginning color of the gradient | ||
1424 | * end_rgb - end color of the gradient | ||
1425 | */ | ||
1426 | void lcd_gradient_fillrect(int x, int y, int width, int height, | ||
1427 | unsigned start_rgb, unsigned end_rgb) | ||
1428 | { | ||
1429 | lcd_gradient_fillrect_part(x, y, width, height, start_rgb, end_rgb, height, 0); | ||
1430 | } | ||