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ffmpeg.wasm-core
Commit d03be26e authored by Michael Niedermayer's avatar Michael Niedermayer
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8bpp bugfixes (brightness, contrast ...) 

4bpp

Originally committed as revision 6454 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
parent 66cd0d8e
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Showing with 165 additions and 8 deletions
postproc/yuv2rgb.c
View file @ d03be26e
......@@ -87,20 +87,42 @@ uint64_t __attribute__((aligned(8))) dither8[2]={
0x0602060206020602LL,
0x0004000400040004LL,};
uint8_t __attribute__((aligned(8))) dither32[4][8]={
uint8_t __attribute__((aligned(8))) dither_4x4_32[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]={
uint8_t __attribute__((aligned(8))) dither_4x4_64[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,},
};
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, },
{ 40, 24, 36, 20, 43, 27, 39, 23, },
{ 2, 50, 14, 62, 1, 49, 13, 61, },
{ 34, 18, 46, 30, 33, 17, 45, 29, },
{ 10, 58, 6, 54, 9, 57, 5, 53, },
{ 42, 26, 38, 22, 41, 25, 37, 21, },
};
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, },
{ 0, 96, 24, 120, 6, 102, 30, 126, },
{ 64, 32, 88, 56, 70, 38, 94, 62, },
{ 16, 112, 8, 104, 22, 118, 14, 110, },
{ 80, 48, 72, 40, 86, 54, 78, 46, },
{ 4, 100, 28, 124, 2, 98, 26, 122, },
};
#undef HAVE_MMX
#undef ARCH_X86
......@@ -447,7 +469,6 @@ 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,
......@@ -462,8 +483,8 @@ 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= dither32[v_pos&3];
uint8_t *d64= dither64[v_pos&3];
uint8_t *d32= dither_4x4_32[v_pos&3];
uint8_t *d64= dither_4x4_64[v_pos&3];
#define DST1a(i) \
Y = py_1[2*i]; \
......@@ -514,6 +535,102 @@ static void yuv2rgb_c_8_ordered_dither (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_4 (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, out;
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 void yuv2rgb_c_4_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 *d64= dither_8x8_64 [v_pos&7];
uint8_t *d128=dither_8x8_128[v_pos&7];
#define DST1bpp4(i,o) \
Y = py_1[2*i]; \
dst_1[2*i] = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
Y = py_1[2*i+1]; \
dst_1[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]];
#define DST2bpp4(i,o) \
Y = py_2[2*i]; \
dst_2[2*i] = r[Y+d128[8+o]] + g[Y+d64[8+o]] + b[Y+d128[8+o]]; \
Y = py_2[2*i+1]; \
dst_2[2*i+1] = r[Y+d128[9+o]] + g[Y+d64[9+o]] + b[Y+d128[9+o]];
RGB(0);
DST1bpp4(0,0);
DST2bpp4(0,0);
RGB(1);
DST2bpp4(1,2);
DST1bpp4(1,2);
RGB(2);
DST1bpp4(2,4);
DST2bpp4(2,4);
RGB(3);
DST2bpp4(3,6);
DST1bpp4(3,6);
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)
......@@ -530,6 +647,8 @@ static void yuv2rgb_c_init (int bpp, int mode)
uint16_t *table_16 = 0;
uint8_t *table_8 = 0;
uint8_t *table_332 = 0;
uint8_t *table_121 = 0;
uint8_t *table_1 = 0;
int entry_size = 0;
void *table_r = 0, *table_g = 0, *table_b = 0;
......@@ -623,7 +742,8 @@ static void yuv2rgb_c_init (int bpp, int mode)
table_g = table_332 + 197 + 2*682;
for (i = -197; i < 256+197; i++) {
int j = table_Y[i+384] >> 5;
int j = (table_Y[i+384] - 16) >> 5;
if(j<0) j=0;
if (mode == MODE_RGB)
j <<= 5;
......@@ -631,7 +751,8 @@ static void yuv2rgb_c_init (int bpp, int mode)
((uint8_t *)table_r)[i] = j;
}
for (i = -132; i < 256+132; i++) {
int j = table_Y[i+384] >> 5;
int j = (table_Y[i+384] - 16) >> 5;
if(j<0) j=0;
if (mode == MODE_BGR)
j <<= 1;
......@@ -639,7 +760,8 @@ static void yuv2rgb_c_init (int bpp, int mode)
((uint8_t *)table_g)[i] = j << 2;
}
for (i = -232; i < 256+232; i++) {
int j = table_Y[i+384] >> 6;
int j = (table_Y[i+384] - 32) >> 6;
if(j<0) j=0;
if (mode == MODE_BGR)
j <<= 6;
......@@ -647,6 +769,41 @@ static void yuv2rgb_c_init (int bpp, int mode)
((uint8_t *)table_b)[i] = j;
}
break;
case 4:
yuv2rgb_c_internal = yuv2rgb_c_4_ordered_dither; //yuv2rgb_c_4;
table_121 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
entry_size = sizeof (uint8_t);
table_r = table_121 + 197;
table_b = table_121 + 197 + 685;
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;
if (mode == MODE_RGB)
j <<= 3;
((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;
((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;
if (mode == MODE_BGR)
j <<= 3;
((uint8_t *)table_b)[i] = j;
}
break;
default:
mp_msg(MSGT_SWS,MSGL_ERR,"%ibpp not supported by yuv2rgb\n", bpp);
......
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