/* * 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