| 134,13 → 134,23 |
|---|
| return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3); |
| } |
| |
| /** Put pixel - 8-bit depth (3:2:3) */ |
| /** Put pixel - 8-bit depth (color palette/3:2:3) |
| * |
| * Even though we try 3:2:3 color scheme here, an 8-bit framebuffer |
| * will most likely use a color palette. The color appearance |
| * will be pretty random and depend on the default installed |
| * palette. This could be fixed by supporting custom palette |
| * and setting it to simulate the 8-bit truecolor. |
| */ |
| static void rgb_1byte(void *dst, int rgb) |
| { |
| *(uint8_t *)dst = RED(rgb, 3) << 5 | GREEN(rgb, 2) << 3 | BLUE(rgb, 3); |
| } |
| |
| /** Return pixel color - 8-bit depth (3:2:3) */ |
| /** Return pixel color - 8-bit depth (color palette/3:2:3) |
| * |
| * See the comment for rgb_1byte(). |
| */ |
| static int byte1_rgb(void *src) |
| { |
| int color = *(uint8_t *)src; |
| 329,14 → 339,14 |
|---|
| |
| /** Initialize framebuffer as a chardev output device |
| * |
| * @param addr Physical address of the framebuffer |
| * @param x Screen width in pixels |
| * @param y Screen height in pixels |
| * @param bpp Bits per pixel (8, 16, 24, 32) |
| * @param scan Bytes per one scanline |
| * |
| * @param addr Physical address of the framebuffer |
| * @param x Screen width in pixels |
| * @param y Screen height in pixels |
| * @param bpp Bits per pixel (8, 16, 24, 32) |
| * @param scan Bytes per one scanline |
| * @param align Request alignment for 24bpp mode. |
| */ |
| void fb_init(uintptr_t addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan) |
| void fb_init(uintptr_t addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan, bool align) |
| { |
| switch (bpp) { |
| case 8: |
| 352,7 → 362,10 |
|---|
| case 24: |
| rgb2scr = rgb_3byte; |
| scr2rgb = byte3_rgb; |
| pixelbytes = 3; |
| if (align) |
| pixelbytes = 4; |
| else |
| pixelbytes = 3; |
| break; |
| case 32: |
| rgb2scr = rgb_4byte; |