diff options
Diffstat (limited to 'src/hw/display/omap_lcd_template.h')
| -rw-r--r-- | src/hw/display/omap_lcd_template.h | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/hw/display/omap_lcd_template.h b/src/hw/display/omap_lcd_template.h new file mode 100644 index 0000000..e5dd447 --- /dev/null +++ b/src/hw/display/omap_lcd_template.h @@ -0,0 +1,175 @@ +/* + * QEMU OMAP LCD Emulator templates + * + * Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#if DEPTH == 8 +# define BPP 1 +# define PIXEL_TYPE uint8_t +#elif DEPTH == 15 || DEPTH == 16 +# define BPP 2 +# define PIXEL_TYPE uint16_t +#elif DEPTH == 32 +# define BPP 4 +# define PIXEL_TYPE uint32_t +#else +# error unsupport depth +#endif + +/* + * 2-bit colour + */ +static void glue(draw_line2_, DEPTH)(void *opaque, + uint8_t *d, const uint8_t *s, int width, int deststep) +{ + uint16_t *pal = opaque; + uint8_t v, r, g, b; + + do { + v = ldub_p((void *) s); + r = (pal[v & 3] >> 4) & 0xf0; + g = pal[v & 3] & 0xf0; + b = (pal[v & 3] << 4) & 0xf0; + ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b); + d += BPP; + v >>= 2; + r = (pal[v & 3] >> 4) & 0xf0; + g = pal[v & 3] & 0xf0; + b = (pal[v & 3] << 4) & 0xf0; + ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b); + d += BPP; + v >>= 2; + r = (pal[v & 3] >> 4) & 0xf0; + g = pal[v & 3] & 0xf0; + b = (pal[v & 3] << 4) & 0xf0; + ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b); + d += BPP; + v >>= 2; + r = (pal[v & 3] >> 4) & 0xf0; + g = pal[v & 3] & 0xf0; + b = (pal[v & 3] << 4) & 0xf0; + ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b); + d += BPP; + s ++; + width -= 4; + } while (width > 0); +} + +/* + * 4-bit colour + */ +static void glue(draw_line4_, DEPTH)(void *opaque, + uint8_t *d, const uint8_t *s, int width, int deststep) +{ + uint16_t *pal = opaque; + uint8_t v, r, g, b; + + do { + v = ldub_p((void *) s); + r = (pal[v & 0xf] >> 4) & 0xf0; + g = pal[v & 0xf] & 0xf0; + b = (pal[v & 0xf] << 4) & 0xf0; + ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b); + d += BPP; + v >>= 4; + r = (pal[v & 0xf] >> 4) & 0xf0; + g = pal[v & 0xf] & 0xf0; + b = (pal[v & 0xf] << 4) & 0xf0; + ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b); + d += BPP; + s ++; + width -= 2; + } while (width > 0); +} + +/* + * 8-bit colour + */ +static void glue(draw_line8_, DEPTH)(void *opaque, + uint8_t *d, const uint8_t *s, int width, int deststep) +{ + uint16_t *pal = opaque; + uint8_t v, r, g, b; + + do { + v = ldub_p((void *) s); + r = (pal[v] >> 4) & 0xf0; + g = pal[v] & 0xf0; + b = (pal[v] << 4) & 0xf0; + ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b); + s ++; + d += BPP; + } while (-- width != 0); +} + +/* + * 12-bit colour + */ +static void glue(draw_line12_, DEPTH)(void *opaque, + uint8_t *d, const uint8_t *s, int width, int deststep) +{ + uint16_t v; + uint8_t r, g, b; + + do { + v = lduw_p((void *) s); + r = (v >> 4) & 0xf0; + g = v & 0xf0; + b = (v << 4) & 0xf0; + ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b); + s += 2; + d += BPP; + } while (-- width != 0); +} + +/* + * 16-bit colour + */ +static void glue(draw_line16_, DEPTH)(void *opaque, + uint8_t *d, const uint8_t *s, int width, int deststep) +{ +#if DEPTH == 16 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) + memcpy(d, s, width * 2); +#else + uint16_t v; + uint8_t r, g, b; + + do { + v = lduw_p((void *) s); + r = (v >> 8) & 0xf8; + g = (v >> 3) & 0xfc; + b = (v << 3) & 0xf8; + ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b); + s += 2; + d += BPP; + } while (-- width != 0); +#endif +} + +#undef DEPTH +#undef BPP +#undef PIXEL_TYPE |
