mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-29 22:40:25 +00:00
1d6198c3b0
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6000 c046a42c-6fe2-441c-8c8c-71466251a162
104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/*
|
|
* Pixel drawing function templates for QEMU SM501 Device
|
|
*
|
|
* Copyright (c) 2008 Shin-ichiro KAWASAKI
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#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
|
|
|
|
#ifdef BGR_FORMAT
|
|
#define PIXEL_NAME glue(DEPTH, bgr)
|
|
#else
|
|
#define PIXEL_NAME DEPTH
|
|
#endif /* BGR_FORMAT */
|
|
|
|
|
|
static void glue(draw_line8_, PIXEL_NAME)(
|
|
uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
|
|
{
|
|
uint8_t v, r, g, b;
|
|
do {
|
|
v = ldub_raw(s);
|
|
r = (pal[v] >> 16) & 0xff;
|
|
g = (pal[v] >> 8) & 0xff;
|
|
b = (pal[v] >> 0) & 0xff;
|
|
((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
|
|
s ++;
|
|
d += BPP;
|
|
} while (-- width != 0);
|
|
}
|
|
|
|
static void glue(draw_line16_, PIXEL_NAME)(
|
|
uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
|
|
{
|
|
uint16_t rgb565;
|
|
uint8_t r, g, b;
|
|
|
|
do {
|
|
rgb565 = lduw_raw(s);
|
|
r = ((rgb565 >> 11) & 0x1f) << 3;
|
|
g = ((rgb565 >> 5) & 0x3f) << 2;
|
|
b = ((rgb565 >> 0) & 0x1f) << 3;
|
|
((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
|
|
s += 2;
|
|
d += BPP;
|
|
} while (-- width != 0);
|
|
}
|
|
|
|
static void glue(draw_line32_, PIXEL_NAME)(
|
|
uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
|
|
{
|
|
uint8_t r, g, b;
|
|
|
|
do {
|
|
ldub_raw(s);
|
|
#if defined(TARGET_WORDS_BIGENDIAN)
|
|
r = s[1];
|
|
g = s[2];
|
|
b = s[3];
|
|
#else
|
|
b = s[0];
|
|
g = s[1];
|
|
r = s[2];
|
|
#endif
|
|
((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
|
|
s += 4;
|
|
d += BPP;
|
|
} while (-- width != 0);
|
|
}
|
|
|
|
#undef DEPTH
|
|
#undef BPP
|
|
#undef PIXEL_TYPE
|
|
#undef PIXEL_NAME
|
|
#undef BGR_FORMAT
|