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ordered dither for 8bpp

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Originally committed as revision 6453 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2002-06-16 21:24:57 +00:00
parent 431b47f9fd
commit 66cd0d8ead
1 changed files with 89 additions and 8 deletions
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97
postproc/yuv2rgb.c
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@ -26,6 +26,7 @@
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
* MMX/MMX2 Template stuff from Michael Niedermayer (michaelni@gmx.at) (needed for fast movntq support)
* 8bpp support by Michael Niedermayer (michaelni@gmx.at)
*/
#include <stdio.h>
@ -86,6 +87,20 @@ uint64_t __attribute__((aligned(8))) dither8[2]={
0x0602060206020602LL,
0x0004000400040004LL,};
uint8_t __attribute__((aligned(8))) dither32[4][8]={
{ 0,16, 6,22, 0,16, 6,22},
{28, 8,24,14,28, 8,24,14},
{ 4,20, 2,18, 4,20, 2,18},
{26,12,30,10,26,12,30,10},
};
uint8_t __attribute__((aligned(8))) dither64[4][8]={
{ 8,40, 4,36, 8,40, 4,36,},
{52,24,60,20,52,24,60,20,},
{00,32,12,44,00,32,12,44,},
{56,16,48,28,56,16,48,28,},
};
#undef HAVE_MMX
#undef ARCH_X86
@ -129,7 +144,7 @@ yuv2rgb_fun yuv2rgb;
static void (* yuv2rgb_c_internal) (uint8_t *, uint8_t *,
uint8_t *, uint8_t *,
void *, void *, int);
void *, void *, int, int);
static void yuv2rgb_c (void * dst, uint8_t * py,
uint8_t * pu, uint8_t * pv,
@ -140,7 +155,7 @@ static void yuv2rgb_c (void * dst, uint8_t * py,
while (v_size--) {
yuv2rgb_c_internal (py, py + y_stride, pu, pv, dst, dst + rgb_stride,
h_size);
h_size, v_size<<1);
py += 2 * y_stride;
pu += uv_stride;
@ -238,7 +253,7 @@ void * table_bU[256];
static void yuv2rgb_c_32 (uint8_t * py_1, uint8_t * py_2,
uint8_t * pu, uint8_t * pv,
void * _dst_1, void * _dst_2, int h_size)
void * _dst_1, void * _dst_2, int h_size, int v_pos)
{
int U, V, Y;
uint32_t * r, * g, * b;
@ -277,7 +292,7 @@ static void yuv2rgb_c_32 (uint8_t * py_1, uint8_t * py_2,
// This is very near from the yuv2rgb_c_32 code
static void yuv2rgb_c_24_rgb (uint8_t * py_1, uint8_t * py_2,
uint8_t * pu, uint8_t * pv,
void * _dst_1, void * _dst_2, int h_size)
void * _dst_1, void * _dst_2, int h_size, int v_pos)
{
int U, V, Y;
uint8_t * r, * g, * b;
@ -316,7 +331,7 @@ static void yuv2rgb_c_24_rgb (uint8_t * py_1, uint8_t * py_2,
// only trivial mods from yuv2rgb_c_24_rgb
static void yuv2rgb_c_24_bgr (uint8_t * py_1, uint8_t * py_2,
uint8_t * pu, uint8_t * pv,
void * _dst_1, void * _dst_2, int h_size)
void * _dst_1, void * _dst_2, int h_size, int v_pos)
{
int U, V, Y;
uint8_t * r, * g, * b;
@ -356,7 +371,7 @@ static void yuv2rgb_c_24_bgr (uint8_t * py_1, uint8_t * py_2,
// r, g, b, dst_1, dst_2
static void yuv2rgb_c_16 (uint8_t * py_1, uint8_t * py_2,
uint8_t * pu, uint8_t * pv,
void * _dst_1, void * _dst_2, int h_size)
void * _dst_1, void * _dst_2, int h_size, int v_pos)
{
int U, V, Y;
uint16_t * r, * g, * b;
@ -396,7 +411,7 @@ static void yuv2rgb_c_16 (uint8_t * py_1, uint8_t * py_2,
// 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)
void * _dst_1, void * _dst_2, int h_size, int v_pos)
{
int U, V, Y;
uint8_t * r, * g, * b;
@ -432,6 +447,72 @@ static void yuv2rgb_c_8 (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_ordered_dither (uint8_t * py_1, uint8_t * py_2,
uint8_t * pu, uint8_t * pv,
void * _dst_1, void * _dst_2, int h_size, int v_pos)
{
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--) {
uint8_t *d32= dither32[v_pos&3];
uint8_t *d64= dither64[v_pos&3];
#define DST1a(i) \
Y = py_1[2*i]; \
dst_1[2*i] = r[Y+d32[0]] + g[Y+d32[0]] + b[Y+d64[0]]; \
Y = py_1[2*i+1]; \
dst_1[2*i+1] = r[Y+d32[1]] + g[Y+d32[1]] + b[Y+d64[1]];
#define DST2a(i) \
Y = py_2[2*i]; \
dst_2[2*i] = r[Y+d32[8]] + g[Y+d32[8]] + b[Y+d64[8]]; \
Y = py_2[2*i+1]; \
dst_2[2*i+1] = r[Y+d32[9]] + g[Y+d32[9]] + b[Y+d64[9]];
#define DST1b(i) \
Y = py_1[2*i]; \
dst_1[2*i] = r[Y+d32[2]] + g[Y+d32[2]] + b[Y+d64[2]]; \
Y = py_1[2*i+1]; \
dst_1[2*i+1] = r[Y+d32[3]] + g[Y+d32[3]] + b[Y+d64[3]];
#define DST2b(i) \
Y = py_2[2*i]; \
dst_2[2*i] = r[Y+d32[10]] + g[Y+d32[10]] + b[Y+d64[10]]; \
Y = py_2[2*i+1]; \
dst_2[2*i+1] = r[Y+d32[11]] + g[Y+d32[11]] + b[Y+d64[11]];
RGB(0);
DST1a(0);
DST2a(0);
RGB(1);
DST2b(1);
DST1b(1);
RGB(2);
DST1a(2);
DST2a(2);
RGB(3);
DST2b(3);
DST1b(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)
{
@ -532,7 +613,7 @@ static void yuv2rgb_c_init (int bpp, int mode)
break;
case 8:
yuv2rgb_c_internal = yuv2rgb_c_8;
yuv2rgb_c_internal = yuv2rgb_c_8_ordered_dither; //yuv2rgb_c_8;
table_332 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));