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Ajout de fonctions yuv permettant un scaling 'exotique' en fin du 

fichier. Elles seront testees des que l'output le permettra.
pull/2/head
Gaël Hendryckx 27 years ago
parent
796346ac80
commit
57f0982283
1 changed files with 628 additions and 1 deletions
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  1. 629
      src/video_output/video_yuv.c

629
src/video_output/video_yuv.c
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@ -1497,5 +1497,632 @@ static void yuvToRgb32 (unsigned char * Y,
}
}
/* API routines */
/* yuv routines with scaling */
/* 4:2:2 i, 16 bpp*/
void yuv422ToRgb16_scaled (unsigned char * Y,
unsigned char * U, unsigned char * V,
short * dest, short table[1935], int width , int dest_width,
int height, int dest_height, int skip, int dest_skip,short * buffer)
{
int i, i_hcount, i_vcount, j, k;
int u;
int v;
int uvRed;
int uvGreen;
int uvBlue;
short * tableY;
short pix;
if ( ( width < dest_width ) && ( height < dest_height ) )
{
i_vcount = dest_height;
k = height;
while ( k-- )
{
j = 0;
i = width >> 1;
i_hcount = dest_width;
while ( i-- )
{
u = *(U++);
v = *(V++);
uvRed = (V_RED_COEF*v) >> SHIFT;
uvGreen = (U_GREEN_COEF*u + V_GREEN_COEF*v) >> SHIFT;
uvBlue = (U_BLUE_COEF*u) >> SHIFT;
tableY = table + *(Y++);
pix = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) + uvRed] |
tableY [135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)
>>SHIFT) + uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) + uvBlue]);
while ( ( i_hcount -= width ) >= 0 )
{
buffer[j++] = pix;
}
i_hcount += dest_width;
tableY = table + *(Y++);
pix = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) + uvRed] |
tableY [135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)
>>SHIFT) + uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) + uvBlue]);
while ( ( i_hcount -= width ) >= 0 )
{
buffer[j++] = pix;
}
i_hcount += dest_width;
}
while ( ( i_vcount -= height ) >= 0 )
{
for (j=0; j<dest_width; j+=16)
{
dest[j]=buffer[j];
dest[j+1]=buffer[j+1];
dest[j+2]=buffer[j+2];
dest[j+3]=buffer[j+3];
dest[j+4]=buffer[j+4];
dest[j+6]=buffer[j+7];
dest[j+8]=buffer[j+9];
dest[j+10]=buffer[j+10];
dest[j+11]=buffer[j+11];
dest[j+12]=buffer[j+12];
dest[j+13]=buffer[j+13];
dest[j+14]=buffer[j+14];
dest[j+15]=buffer[j+15];
}
dest += dest_skip;
}
i_vcount += dest_height;
}
}
else if ( ( width > dest_width ) && ( height < dest_height ) )
{
i_vcount = dest_height;
k = height;
while ( k-- )
{
j = 0;
i_hcount = 0;
i = width >> 1;
while ( i-- )
{
u = *(U++);
v = *(V++);
uvRed = (V_RED_COEF*v) >> SHIFT;
uvGreen = (U_GREEN_COEF*u + V_GREEN_COEF*v) >> SHIFT;
uvBlue = (U_BLUE_COEF*u) >> SHIFT;
if ( ( i_hcount -= dest_width ) >= 0 )
Y++;
else
{
tableY = table + *(Y++);
buffer[j++] = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) +
uvRed] |
tableY [135 -
(((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) +
uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) +
uvBlue]);
i_hcount += width;
}
if ( ( i_hcount -= dest_width ) >= 0 )
Y++;
else
{
tableY = table + *(Y++);
buffer[j++] = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) +
uvRed] |
tableY [135 -
(((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) +
uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) +
uvBlue]);
i_hcount += width;
}
}
while ( ( i_vcount -= height ) >= 0 )
{
for (j=0; j<dest_width; j+=16)
{
dest[j]=buffer[j];
dest[j+1]=buffer[j+1];
dest[j+2]=buffer[j+2];
dest[j+3]=buffer[j+3];
dest[j+4]=buffer[j+4];
dest[j+6]=buffer[j+7];
dest[j+8]=buffer[j+9];
dest[j+10]=buffer[j+10];
dest[j+11]=buffer[j+11];
dest[j+12]=buffer[j+12];
dest[j+13]=buffer[j+13];
dest[j+14]=buffer[j+14];
dest[j+15]=buffer[j+15];
}
dest += dest_skip;
}
i_vcount += dest_height;
}
}
else if ( ( width < dest_width ) && ( height > dest_height ) )
{
i_vcount = 0;
k = height;
while ( k-- )
{
j = 0;
i = width >> 1;
i_hcount = dest_width;
while ( i-- )
{
u = *(U++);
v = *(V++);
uvRed = (V_RED_COEF*v) >> SHIFT;
uvGreen = (U_GREEN_COEF*u + V_GREEN_COEF*v) >> SHIFT;
uvBlue = (U_BLUE_COEF*u) >> SHIFT;
tableY = table + *(Y++);
pix = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) + uvRed] |
tableY [135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)
>>SHIFT) + uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) + uvBlue]);
while ( ( i_hcount -= width ) >= 0 )
{
dest[j++] = pix;
}
i_hcount += dest_width;
tableY = table + *(Y++);
pix = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) + uvRed] |
tableY [135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)
>>SHIFT) + uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) + uvBlue]);
while ( ( i_hcount -= width ) >= 0 )
{
dest[j++] = pix;
}
i_hcount += dest_width;
}
while ( ( i_vcount -= height ) >= 0 )
{
Y += skip;
U += skip >> 1;
V += skip >> 1;
}
i_vcount += dest_height;
}
}
else if ( ( width > dest_width ) && ( height > dest_height ) )
{
i_vcount = dest_height;
k = height;
while ( k-- )
{
j = 0;
i_hcount = 0;
i = width >> 1;
while ( i-- )
{
u = *(U++);
v = *(V++);
uvRed = (V_RED_COEF*v) >> SHIFT;
uvGreen = (U_GREEN_COEF*u + V_GREEN_COEF*v) >> SHIFT;
uvBlue = (U_BLUE_COEF*u) >> SHIFT;
if ( ( i_hcount -= dest_width ) >= 0 )
Y++;
else
{
tableY = table + *(Y++);
dest[j++] = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) +
uvRed] |
tableY [135 -
(((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) +
uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) +
uvBlue]);
i_hcount += width;
}
if ( ( i_hcount -= dest_width ) >= 0 )
Y++;
else
{
tableY = table + *(Y++);
dest[j++] = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) +
uvRed] |
tableY [135 -
(((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) +
uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) +
uvBlue]);
i_hcount += width;
}
}
while ( ( i_vcount -= height ) >= 0 )
{
Y += skip;
U += skip >> 1;
V += skip >> 1;
}
i_vcount += dest_height;
}
}
}
/* yuv routines with scaling */
/* 4:2:0 i, 16 bpp*/
void yuv420ToRgb16_scaled (unsigned char * Y,
unsigned char * U, unsigned char * V,
short * dest, short table[1935], int width , int dest_width,
int height, int dest_height, int skip, int dest_skip,short * buffer)
{
int i, i_hcount, i_vcount, j, k;
int u;
int v;
int uvRed;
int uvGreen;
int uvBlue;
short * tableY;
short pix;
if ( ( width < dest_width ) && ( height < dest_height ) )
{
i_vcount = dest_height;
k = height >> 1;
while ( k-- )
{
j = 0;
i = width >> 1;
i_hcount = dest_width;
while ( i-- )
{
u = *(U++);
v = *(V++);
uvRed = (V_RED_COEF*v) >> SHIFT;
uvGreen = (U_GREEN_COEF*u + V_GREEN_COEF*v) >> SHIFT;
uvBlue = (U_BLUE_COEF*u) >> SHIFT;
tableY = table + *(Y++);
pix = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) + uvRed] |
tableY [135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)
>>SHIFT) + uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) + uvBlue]);
while ( ( i_hcount -= width ) >= 0 )
{
buffer[j++] = pix;
}
i_hcount += dest_width;
tableY = table + *(Y++);
pix = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) + uvRed] |
tableY [135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)
>>SHIFT) + uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) + uvBlue]);
while ( ( i_hcount -= width ) >= 0 )
{
buffer[j++] = pix;
}
i_hcount += dest_width;
}
while ( ( i_vcount -= height ) >= 0 )
{
for (j=0; j<dest_width; j+=16)
{
dest[j]=buffer[j];
dest[j+1]=buffer[j+1];
dest[j+2]=buffer[j+2];
dest[j+3]=buffer[j+3];
dest[j+4]=buffer[j+4];
dest[j+6]=buffer[j+7];
dest[j+8]=buffer[j+9];
dest[j+10]=buffer[j+10];
dest[j+11]=buffer[j+11];
dest[j+12]=buffer[j+12];
dest[j+13]=buffer[j+13];
dest[j+14]=buffer[j+14];
dest[j+15]=buffer[j+15];
}
dest += dest_skip;
}
i_vcount += dest_height;
U -= skip >> 1;
V -= skip >> 1;
j = 0;
i = width >> 1;
i_hcount = dest_width;
while ( i-- )
{
u = *(U++);
v = *(V++);
uvRed = (V_RED_COEF*v) >> SHIFT;
uvGreen = (U_GREEN_COEF*u + V_GREEN_COEF*v) >> SHIFT;
uvBlue = (U_BLUE_COEF*u) >> SHIFT;
tableY = table + *(Y++);
pix = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) + uvRed] |
tableY [135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)
>>SHIFT) + uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) + uvBlue]);
while ( ( i_hcount -= width ) >= 0 )
{
buffer[j++] = pix;
}
i_hcount += dest_width;
tableY = table + *(Y++);
pix = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) + uvRed] |
tableY [135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)
>>SHIFT) + uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) + uvBlue]);
while ( ( i_hcount -= width ) >= 0 )
{
buffer[j++] = pix;
}
i_hcount += dest_width;
}
while ( ( i_vcount -= height ) >= 0 )
{
for (j=0; j<dest_width; j+=16)
{
dest[j]=buffer[j];
dest[j+1]=buffer[j+1];
dest[j+2]=buffer[j+2];
dest[j+3]=buffer[j+3];
dest[j+4]=buffer[j+4];
dest[j+6]=buffer[j+7];
dest[j+8]=buffer[j+9];
dest[j+10]=buffer[j+10];
dest[j+11]=buffer[j+11];
dest[j+12]=buffer[j+12];
dest[j+13]=buffer[j+13];
dest[j+14]=buffer[j+14];
dest[j+15]=buffer[j+15];
}
dest += dest_skip;
}
i_vcount += dest_height;
}
}
else if ( ( width > dest_width ) && ( height < dest_height ) )
{
i_vcount = dest_height;
k = height;
while ( k-- )
{
j = 0;
i_hcount = 0;
i = width >> 1;
while ( i-- )
{
u = *(U++);
v = *(V++);
uvRed = (V_RED_COEF*v) >> SHIFT;
uvGreen = (U_GREEN_COEF*u + V_GREEN_COEF*v) >> SHIFT;
uvBlue = (U_BLUE_COEF*u) >> SHIFT;
if ( ( i_hcount -= dest_width ) >= 0 )
Y++;
else
{
tableY = table + *(Y++);
buffer[j++] = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) +
uvRed] |
tableY [135 -
(((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) +
uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) +
uvBlue]);
i_hcount += width;
}
if ( ( i_hcount -= dest_width ) >= 0 )
Y++;
else
{
tableY = table + *(Y++);
buffer[j++] = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) +
uvRed] |
tableY [135 -
(((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) +
uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) +
uvBlue]);
i_hcount += width;
}
}
while ( ( i_vcount -= height ) >= 0 )
{
for (j=0; j<dest_width; j+=16)
{
dest[j]=buffer[j];
dest[j+1]=buffer[j+1];
dest[j+2]=buffer[j+2];
dest[j+3]=buffer[j+3];
dest[j+4]=buffer[j+4];
dest[j+6]=buffer[j+7];
dest[j+8]=buffer[j+9];
dest[j+10]=buffer[j+10];
dest[j+11]=buffer[j+11];
dest[j+12]=buffer[j+12];
dest[j+13]=buffer[j+13];
dest[j+14]=buffer[j+14];
dest[j+15]=buffer[j+15];
}
dest += dest_skip;
}
i_vcount += dest_height;
U -= skip >> 1;
V -= skip >> 1;
j = 0;
i_hcount = 0;
i = width >> 1;
while ( i-- )
{
u = *(U++);
v = *(V++);
uvRed = (V_RED_COEF*v) >> SHIFT;
uvGreen = (U_GREEN_COEF*u + V_GREEN_COEF*v) >> SHIFT;
uvBlue = (U_BLUE_COEF*u) >> SHIFT;
if ( ( i_hcount -= dest_width ) >= 0 )
Y++;
else
{
tableY = table + *(Y++);
buffer[j++] = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) +
uvRed] |
tableY [135 -
(((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) +
uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) +
uvBlue]);
i_hcount += width;
}
if ( ( i_hcount -= dest_width ) >= 0 )
Y++;
else
{
tableY = table + *(Y++);
buffer[j++] = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) +
uvRed] |
tableY [135 -
(((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) +
uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) +
uvBlue]);
i_hcount += width;
}
}
while ( ( i_vcount -= height ) >= 0 )
{
for (j=0; j<dest_width; j+=16)
{
dest[j]=buffer[j];
dest[j+1]=buffer[j+1];
dest[j+2]=buffer[j+2];
dest[j+3]=buffer[j+3];
dest[j+4]=buffer[j+4];
dest[j+6]=buffer[j+7];
dest[j+8]=buffer[j+9];
dest[j+10]=buffer[j+10];
dest[j+11]=buffer[j+11];
dest[j+12]=buffer[j+12];
dest[j+13]=buffer[j+13];
dest[j+14]=buffer[j+14];
dest[j+15]=buffer[j+15];
}
dest += dest_skip;
}
i_vcount += dest_height;
}
}
else if ( ( width < dest_width ) && ( height > dest_height ) )
{
i_vcount = 0;
k = height;
while ( k-- )
{
j = 0;
i = width >> 1;
i_hcount = dest_width;
while ( i-- )
{
u = *(U++);
v = *(V++);
uvRed = (V_RED_COEF*v) >> SHIFT;
uvGreen = (U_GREEN_COEF*u + V_GREEN_COEF*v) >> SHIFT;
uvBlue = (U_BLUE_COEF*u) >> SHIFT;
tableY = table + *(Y++);
pix = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) + uvRed] |
tableY [135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)
>>SHIFT) + uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) + uvBlue]);
while ( ( i_hcount -= width ) >= 0 )
{
dest[j++] = pix;
}
i_hcount += dest_width;
tableY = table + *(Y++);
pix = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) + uvRed] |
tableY [135 - (((U_GREEN_COEF+V_GREEN_COEF)*128)
>>SHIFT) + uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) + uvBlue]);
while ( ( i_hcount -= width ) >= 0 )
{
dest[j++] = pix;
}
i_hcount += dest_width;
}
j = 0;
while ( ( i_vcount -= height ) >= 0 )
{
Y += skip;
j++;
}
U += skip * ( j >> 1 );
V += skip * ( j >> 1 );
i_vcount += dest_height;
}
}
else if ( ( width > dest_width ) && ( height > dest_height ) )
{
i_vcount = dest_height;
k = height;
while ( k-- )
{
j = 0;
i_hcount = 0;
i = width >> 1;
while ( i-- )
{
u = *(U++);
v = *(V++);
uvRed = (V_RED_COEF*v) >> SHIFT;
uvGreen = (U_GREEN_COEF*u + V_GREEN_COEF*v) >> SHIFT;
uvBlue = (U_BLUE_COEF*u) >> SHIFT;
if ( ( i_hcount -= dest_width ) >= 0 )
Y++;
else
{
tableY = table + *(Y++);
dest[j++] = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) +
uvRed] |
tableY [135 -
(((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) +
uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) +
uvBlue]);
i_hcount += width;
}
if ( ( i_hcount -= dest_width ) >= 0 )
Y++;
else
{
tableY = table + *(Y++);
dest[j++] = (tableY [1501 - ((V_RED_COEF*128)>>SHIFT) +
uvRed] |
tableY [135 -
(((U_GREEN_COEF+V_GREEN_COEF)*128)>>SHIFT) +
uvGreen] |
tableY [818 - ((U_BLUE_COEF*128)>>SHIFT) +
uvBlue]);
i_hcount += width;
}
}
j = 0;
while ( ( i_vcount -= height ) >= 0 )
{
Y += skip;
j++;
}
U += skip * ( j >> 1 );
V += skip * ( j >> 1 );
i_vcount += dest_height;
}
}
}

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