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fixing scaling/contrast for 1/4/8 bpp

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exporting yuv2rgb_c_init() as the swscaler will use it (avoids code duplication)

Originally committed as revision 6578 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2002-06-27 17:40:51 +00:00
parent d859228038
commit 7c30782729
1 changed files with 109 additions and 38 deletions
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147
postproc/yuv2rgb.c
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@ -50,7 +50,17 @@
#define CAN_COMPILE_X86_ASM
#endif
uint8_t __attribute__((aligned(8))) dither_8x8_32[8][8]={
const uint8_t __attribute__((aligned(8))) dither_2x2_4[2][8]={
{ 1, 3, 1, 3, 1, 3, 1, 3, },
{ 2, 0, 2, 0, 2, 0, 2, 0, },
};
const uint8_t __attribute__((aligned(8))) dither_2x2_8[2][8]={
{ 6, 2, 6, 2, 6, 2, 6, 2, },
{ 0, 4, 0, 4, 0, 4, 0, 4, },
};
const uint8_t __attribute__((aligned(8))) dither_8x8_32[8][8]={
{ 17, 9, 23, 15, 16, 8, 22, 14, },
{ 5, 29, 3, 27, 4, 28, 2, 26, },
{ 21, 13, 19, 11, 20, 12, 18, 10, },
@ -61,7 +71,8 @@ uint8_t __attribute__((aligned(8))) dither_8x8_32[8][8]={
{ 1, 25, 7, 31, 0, 24, 6, 30, },
};
uint8_t __attribute__((aligned(8))) dither_8x8_64[8][8]={
#if 0
const uint8_t __attribute__((aligned(8))) dither_8x8_64[8][8]={
{ 0, 48, 12, 60, 3, 51, 15, 63, },
{ 32, 16, 44, 28, 35, 19, 47, 31, },
{ 8, 56, 4, 52, 11, 59, 7, 55, },
@ -71,8 +82,21 @@ uint8_t __attribute__((aligned(8))) dither_8x8_64[8][8]={
{ 10, 58, 6, 54, 9, 57, 5, 53, },
{ 42, 26, 38, 22, 41, 25, 37, 21, },
};
#endif
uint8_t __attribute__((aligned(8))) dither_8x8_128[8][8]={
const uint8_t __attribute__((aligned(8))) dither_8x8_73[8][8]={
{ 0, 55, 14, 68, 3, 58, 17, 72, },
{ 37, 18, 50, 32, 40, 22, 54, 35, },
{ 9, 64, 5, 59, 13, 67, 8, 63, },
{ 46, 27, 41, 23, 49, 31, 44, 26, },
{ 2, 57, 16, 71, 1, 56, 15, 70, },
{ 39, 21, 52, 34, 38, 19, 51, 33, },
{ 11, 66, 7, 62, 10, 65, 6, 60, },
{ 48, 30, 43, 25, 47, 29, 42, 24, },
};
#if 0
const uint8_t __attribute__((aligned(8))) dither_8x8_128[8][8]={
{ 68, 36, 92, 60, 66, 34, 90, 58, },
{ 20, 116, 12, 108, 18, 114, 10, 106, },
{ 84, 52, 76, 44, 82, 50, 74, 42, },
@ -82,6 +106,56 @@ uint8_t __attribute__((aligned(8))) dither_8x8_128[8][8]={
{ 80, 48, 72, 40, 86, 54, 78, 46, },
{ 4, 100, 28, 124, 2, 98, 26, 122, },
};
#endif
#if 1
const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
{117, 62, 158, 103, 113, 58, 155, 100, },
{ 34, 199, 21, 186, 31, 196, 17, 182, },
{144, 89, 131, 76, 141, 86, 127, 72, },
{ 0, 165, 41, 206, 10, 175, 52, 217, },
{110, 55, 151, 96, 120, 65, 162, 107, },
{ 28, 193, 14, 179, 38, 203, 24, 189, },
{138, 83, 124, 69, 148, 93, 134, 79, },
{ 7, 172, 48, 213, 3, 168, 45, 210, },
};
#elif 1
// tries to correct a gamma of 1.5
const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
{ 0, 143, 18, 200, 2, 156, 25, 215, },
{ 78, 28, 125, 64, 89, 36, 138, 74, },
{ 10, 180, 3, 161, 16, 195, 8, 175, },
{109, 51, 93, 38, 121, 60, 105, 47, },
{ 1, 152, 23, 210, 0, 147, 20, 205, },
{ 85, 33, 134, 71, 81, 30, 130, 67, },
{ 14, 190, 6, 171, 12, 185, 5, 166, },
{117, 57, 101, 44, 113, 54, 97, 41, },
};
#elif 1
// tries to correct a gamma of 2.0
const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
{ 0, 124, 8, 193, 0, 140, 12, 213, },
{ 55, 14, 104, 42, 66, 19, 119, 52, },
{ 3, 168, 1, 145, 6, 187, 3, 162, },
{ 86, 31, 70, 21, 99, 39, 82, 28, },
{ 0, 134, 11, 206, 0, 129, 9, 200, },
{ 62, 17, 114, 48, 58, 16, 109, 45, },
{ 5, 181, 2, 157, 4, 175, 1, 151, },
{ 95, 36, 78, 26, 90, 34, 74, 24, },
};
#else
// tries to correct a gamma of 2.5
const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
{ 0, 107, 3, 187, 0, 125, 6, 212, },
{ 39, 7, 86, 28, 49, 11, 102, 36, },
{ 1, 158, 0, 131, 3, 180, 1, 151, },
{ 68, 19, 52, 12, 81, 25, 64, 17, },
{ 0, 119, 5, 203, 0, 113, 4, 195, },
{ 45, 9, 96, 33, 42, 8, 91, 30, },
{ 2, 172, 1, 144, 2, 165, 0, 137, },
{ 77, 23, 60, 15, 72, 21, 56, 14, },
};
#endif
#ifdef CAN_COMPILE_X86_ASM
@ -156,7 +230,7 @@ const int32_t Inverse_Table_6_9[8][4] = {
{117579, 136230, 16907, 35559} /* SMPTE 240M (1987) */
};
static void yuv2rgb_c_init (unsigned bpp, int mode);
void *yuv2rgb_c_init (unsigned bpp, int mode, void *table_rV[256], void *table_gU[256], int table_gV[256], void *table_bU[256]);
yuv2rgb_fun yuv2rgb;
@ -182,6 +256,11 @@ static void yuv2rgb_c (void * dst, uint8_t * py,
}
}
void * table_rV[256];
void * table_gU[256];
int table_gV[256];
void * table_bU[256];
void yuv2rgb_init (unsigned bpp, int mode)
{
yuv2rgb = NULL;
@ -216,16 +295,11 @@ void yuv2rgb_init (unsigned bpp, int mode)
#endif
if (yuv2rgb == NULL) {
mp_msg(MSGT_SWS,MSGL_INFO,"No accelerated colorspace conversion found\n");
yuv2rgb_c_init (bpp, mode);
yuv2rgb_c_init (bpp, mode, table_rV, table_gU, table_gV, table_bU);
yuv2rgb = (yuv2rgb_fun)yuv2rgb_c;
}
}
void * table_rV[256];
void * table_gU[256];
int table_gV[256];
void * table_bU[256];
#define RGB(i) \
U = pu[i]; \
V = pv[i]; \
@ -479,8 +553,8 @@ static void yuv2rgb_c_8_ordered_dither (uint8_t * py_1, uint8_t * py_2,
dst_2 = _dst_2;
while (h_size--) {
uint8_t *d32= dither_8x8_32[v_pos&7];
uint8_t *d64= dither_8x8_64[v_pos&7];
const uint8_t *d32= dither_8x8_32[v_pos&7];
const uint8_t *d64= dither_8x8_73[v_pos&7];
#define DST1bpp8(i,o) \
Y = py_1[2*i]; \
dst_1[2*i] = r[Y+d32[0+o]] + g[Y+d32[0+o]] + b[Y+d64[0+o]]; \
@ -573,8 +647,8 @@ static void yuv2rgb_c_4_ordered_dither (uint8_t * py_1, uint8_t * py_2,
dst_2 = _dst_2;
while (h_size--) {
uint8_t *d64= dither_8x8_64 [v_pos&7];
uint8_t *d128=dither_8x8_128[v_pos&7];
const uint8_t *d64= dither_8x8_73[v_pos&7];
const uint8_t *d128=dither_8x8_220[v_pos&7];
#define DST1bpp4(i,o) \
Y = py_1[2*i]; \
@ -628,7 +702,7 @@ static void yuv2rgb_c_1_ordered_dither (uint8_t * py_1, uint8_t * py_2,
g= table_gU[128] + table_gV[128];
while (h_size--) {
uint8_t *d128=dither_8x8_128[v_pos&7];
const uint8_t *d128=dither_8x8_220[v_pos&7];
char out_1=0, out_2=0;
#define DST1bpp1(i,o) \
@ -676,7 +750,7 @@ static int div_round (int dividend, int divisor)
return -((-dividend + (divisor>>1)) / divisor);
}
static void yuv2rgb_c_init (unsigned bpp, int mode)
void *yuv2rgb_c_init (unsigned bpp, int mode, void *table_rV[256], void *table_gU[256], int table_gV[256], void *table_bU[256])
{
int i;
uint8_t table_Y[1024];
@ -688,6 +762,7 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
uint8_t *table_1 = 0;
int entry_size = 0;
void *table_r = 0, *table_g = 0, *table_b = 0;
void *table_start;
int crv = Inverse_Table_6_9[matrix_coefficients][0];
int cbu = Inverse_Table_6_9[matrix_coefficients][1];
@ -706,7 +781,7 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
case 32:
yuv2rgb_c_internal = yuv2rgb_c_32;
table_32 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint32_t));
table_start= table_32 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint32_t));
entry_size = sizeof (uint32_t);
table_r = table_32 + 197;
@ -725,7 +800,7 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
// yuv2rgb_c_internal = (mode==MODE_RGB) ? yuv2rgb_c_24_rgb : yuv2rgb_c_24_bgr;
yuv2rgb_c_internal = (mode!=MODE_RGB) ? yuv2rgb_c_24_rgb : yuv2rgb_c_24_bgr;
table_8 = malloc ((256 + 2*232) * sizeof (uint8_t));
table_start= table_8 = malloc ((256 + 2*232) * sizeof (uint8_t));
entry_size = sizeof (uint8_t);
table_r = table_g = table_b = table_8 + 232;
@ -738,7 +813,7 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
case 16:
yuv2rgb_c_internal = yuv2rgb_c_16;
table_16 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint16_t));
table_start= table_16 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint16_t));
entry_size = sizeof (uint16_t);
table_r = table_16 + 197;
@ -771,7 +846,7 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
case 8:
yuv2rgb_c_internal = yuv2rgb_c_8_ordered_dither; //yuv2rgb_c_8;
table_332 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
table_start= table_332 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
entry_size = sizeof (uint8_t);
table_r = table_332 + 197;
@ -779,8 +854,7 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
table_g = table_332 + 197 + 2*682;
for (i = -197; i < 256+197; i++) {
int j = (table_Y[i+384] - 16) >> 5;
if(j<0) j=0;
int j = (table_Y[i+384 - 16] + 18)/36;
if (mode == MODE_RGB)
j <<= 5;
@ -788,8 +862,7 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
((uint8_t *)table_r)[i] = j;
}
for (i = -132; i < 256+132; i++) {
int j = (table_Y[i+384] - 16) >> 5;
if(j<0) j=0;
int j = (table_Y[i+384 - 16] + 18)/36;
if (mode == MODE_BGR)
j <<= 1;
@ -797,8 +870,7 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
((uint8_t *)table_g)[i] = j << 2;
}
for (i = -232; i < 256+232; i++) {
int j = (table_Y[i+384] - 32) >> 6;
if(j<0) j=0;
int j = (table_Y[i+384 - 37] + 43)/85;
if (mode == MODE_BGR)
j <<= 6;
@ -809,7 +881,7 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
case 4:
yuv2rgb_c_internal = yuv2rgb_c_4_ordered_dither; //yuv2rgb_c_4;
table_121 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
table_start= table_121 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
entry_size = sizeof (uint8_t);
table_r = table_121 + 197;
@ -817,8 +889,7 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
table_g = table_121 + 197 + 2*682;
for (i = -197; i < 256+197; i++) {
int j = (table_Y[i+384] - 64) >> 7;
if(j<0) j=0;
int j = table_Y[i+384 - 110] >> 7;
if (mode == MODE_RGB)
j <<= 3;
@ -826,14 +897,12 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
((uint8_t *)table_r)[i] = j;
}
for (i = -132; i < 256+132; i++) {
int j = (table_Y[i+384] - 32) >> 6;
if(j<0) j=0;
int j = (table_Y[i+384 - 37]+ 43)/85;
((uint8_t *)table_g)[i] = j << 1;
}
for (i = -232; i < 256+232; i++) {
int j =(table_Y[i+384] - 64) >> 7;
if(j<0) j=0;
int j =table_Y[i+384 - 110] >> 7;
if (mode == MODE_BGR)
j <<= 3;
@ -845,21 +914,21 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
case 1:
yuv2rgb_c_internal = yuv2rgb_c_1_ordered_dither;
table_1 = malloc ((132*2 + 256) * sizeof (uint8_t));
table_start= table_1 = malloc (256*2 * sizeof (uint8_t));
entry_size = sizeof (uint8_t);
table_g = table_1 + 132;
table_g = table_1;
table_r = table_b = NULL;
for (i = -132; i < 256+132; i++) {
int j = (table_Y[i+384] - 64) >> 7;
if(j<0) j=0;
for (i = 0; i < 256+256; i++) {
int j = table_Y[i + 384 - 110]>>7;
((uint8_t *)table_g)[i] = j;
}
break;
default:
table_start= NULL;
mp_msg(MSGT_SWS,MSGL_ERR,"%ibpp not supported by yuv2rgb\n", bpp);
//exit (1);
}
@ -870,4 +939,6 @@ static void yuv2rgb_c_init (unsigned bpp, int mode)
table_gV[i] = entry_size * div_round (cgv * (i-128), 76309);
table_bU[i] = table_b + entry_size * div_round (cbu * (i-128), 76309);
}
return table_start;
}