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8bpp support (no dithering yet, use -vop noise for now)

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Originally committed as revision 6452 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2002-06-16 20:25:50 +00:00
parent 2dbceb9f8a
commit 431b47f9fd
1 changed files with 78 additions and 0 deletions
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78
postproc/yuv2rgb.c
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@ -392,6 +392,47 @@ static void yuv2rgb_c_16 (uint8_t * py_1, uint8_t * py_2,
}
}
// This is exactly the same code as yuv2rgb_c_32 except for the types of
// r, g, b, dst_1, dst_2
static void yuv2rgb_c_8 (uint8_t * py_1, uint8_t * py_2,
uint8_t * pu, uint8_t * pv,
void * _dst_1, void * _dst_2, int h_size)
{
int U, V, Y;
uint8_t * r, * g, * b;
uint8_t * dst_1, * dst_2;
h_size >>= 3;
dst_1 = _dst_1;
dst_2 = _dst_2;
while (h_size--) {
RGB(0);
DST1(0);
DST2(0);
RGB(1);
DST2(1);
DST1(1);
RGB(2);
DST1(2);
DST2(2);
RGB(3);
DST2(3);
DST1(3);
pu += 4;
pv += 4;
py_1 += 8;
py_2 += 8;
dst_1 += 8;
dst_2 += 8;
}
}
static int div_round (int dividend, int divisor)
{
if (dividend > 0)
@ -407,6 +448,7 @@ static void yuv2rgb_c_init (int bpp, int mode)
uint32_t *table_32 = 0;
uint16_t *table_16 = 0;
uint8_t *table_8 = 0;
uint8_t *table_332 = 0;
int entry_size = 0;
void *table_r = 0, *table_g = 0, *table_b = 0;
@ -489,6 +531,42 @@ static void yuv2rgb_c_init (int bpp, int mode)
}
break;
case 8:
yuv2rgb_c_internal = yuv2rgb_c_8;
table_332 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
entry_size = sizeof (uint8_t);
table_r = table_332 + 197;
table_b = table_332 + 197 + 685;
table_g = table_332 + 197 + 2*682;
for (i = -197; i < 256+197; i++) {
int j = table_Y[i+384] >> 5;
if (mode == MODE_RGB)
j <<= 5;
((uint8_t *)table_r)[i] = j;
}
for (i = -132; i < 256+132; i++) {
int j = table_Y[i+384] >> 5;
if (mode == MODE_BGR)
j <<= 1;
((uint8_t *)table_g)[i] = j << 2;
}
for (i = -232; i < 256+232; i++) {
int j = table_Y[i+384] >> 6;
if (mode == MODE_BGR)
j <<= 6;
((uint8_t *)table_b)[i] = j;
}
break;
default:
mp_msg(MSGT_SWS,MSGL_ERR,"%ibpp not supported by yuv2rgb\n", bpp);
//exit (1);