| /* |
| * QEMU model of the Goldfish framebuffer: drawing templates. |
| * |
| * Copyright (c) 2014 Linaro Limited |
| * |
| * Based heavily on the milkymist drawing templates, which are: |
| * |
| * Copyright (c) 2010 Michael Walle <michael@walle.cc> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| #if BITS == 8 |
| #define COPY_PIXEL(to, r, g, b) \ |
| do { \ |
| *to = rgb_to_pixel8(r, g, b); \ |
| to += 1; \ |
| } while (0) |
| #elif BITS == 15 |
| #define COPY_PIXEL(to, r, g, b) \ |
| do { \ |
| *(uint16_t *)to = rgb_to_pixel15(r, g, b); \ |
| to += 2; \ |
| } while (0) |
| #elif BITS == 16 |
| #define COPY_PIXEL(to, r, g, b) \ |
| do { \ |
| *(uint16_t *)to = rgb_to_pixel16(r, g, b); \ |
| to += 2; \ |
| } while (0) |
| #elif BITS == 24 |
| #define COPY_PIXEL(to, r, g, b) \ |
| do { \ |
| uint32_t tmp = rgb_to_pixel24(r, g, b); \ |
| *(to++) = tmp & 0xff; \ |
| *(to++) = (tmp >> 8) & 0xff; \ |
| *(to++) = (tmp >> 16) & 0xff; \ |
| } while (0) |
| #elif BITS == 32 |
| #define COPY_PIXEL(to, r, g, b) \ |
| do { \ |
| *(uint32_t *)to = rgb_to_pixel32(r, g, b); \ |
| to += 4; \ |
| } while (0) |
| #else |
| #error unknown bit depth |
| #endif |
| |
| static void glue(draw_line_, BITS)(void *opaque, uint8_t *d, const uint8_t *s, |
| int width, int deststep) |
| { |
| uint16_t rgb565; |
| uint8_t r, g, b; |
| |
| while (width--) { |
| rgb565 = lduw_le_p(s); |
| r = ((rgb565 >> 11) & 0x1f) << 3; |
| g = ((rgb565 >> 5) & 0x3f) << 2; |
| b = ((rgb565 >> 0) & 0x1f) << 3; |
| COPY_PIXEL(d, r, g, b); |
| s += 2; |
| } |
| } |
| |
| #undef BITS |
| #undef COPY_PIXEL |