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////////////////////////////////////////////////////////
//
// GEM - Graphics Environment for Multimedia
//
// zmoelnig@iem.kug.ac.at
//
// Implementation file
//
// Copyright (c) 1997-1998 Mark Danks.
// Copyright (c) Günther Geiger.
// Copyright (c) 2001-2011 IOhannes m zmölnig. forum::für::umläute. IEM. zmoelnig@iem.at
// Copyright (c) 2002 James Tittle & Chris Clepper
// For information on usage and redistribution, and for a DISCLAIMER OF ALL
// WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
//
/////////////////////////////////////////////////////////
#include "pix_add.h"
CPPEXTERN_NEW(pix_add);
/////////////////////////////////////////////////////////
//
// pix_add
//
/////////////////////////////////////////////////////////
// Constructor
//
/////////////////////////////////////////////////////////
pix_add :: pix_add()
{ }
/////////////////////////////////////////////////////////
// Destructor
//
/////////////////////////////////////////////////////////
pix_add :: ~pix_add()
{ }
/////////////////////////////////////////////////////////
// processDualImage
//
/////////////////////////////////////////////////////////
void pix_add :: processRGBA_RGBA(imageStruct &image, imageStruct &right)
{
register int datasize = (image.xsize * image.ysize)>>3;
register unsigned char *leftPix = image.data;
register unsigned char *rightPix = right.data;
while (datasize--) {
ADD8_NOALPHA(leftPix,rightPix);
leftPix+=8;rightPix+=8;
ADD8_NOALPHA(leftPix,rightPix);
leftPix+=8;rightPix+=8;
ADD8_NOALPHA(leftPix,rightPix);
leftPix+=8;rightPix+=8;
ADD8_NOALPHA(leftPix,rightPix);
leftPix+=8;rightPix+=8;
}
}
/////////////////////////////////////////////////////////
// processRightGray
//
/////////////////////////////////////////////////////////
void pix_add :: processRGBA_Gray(imageStruct &image, imageStruct &right)
{
int datasize = image.xsize * image.ysize;
unsigned char *leftPix = image.data;
unsigned char *rightPix = right.data;
while(datasize--) {
register int alpha = *rightPix++;
leftPix[chRed] = CLAMP_HIGH(leftPix[chRed] + alpha);
leftPix[chGreen] = CLAMP_HIGH(leftPix[chGreen] + alpha);
leftPix[chBlue] = CLAMP_HIGH(leftPix[chBlue] + alpha);
leftPix += 4;
}
}
/////////////////////////////////////////////////////////
// do the YUV processing here
//
/////////////////////////////////////////////////////////
void pix_add :: processYUV_YUV(imageStruct &image, imageStruct &right)
{
long src,h,w;
int y0,y1;
int u,v;
src =0;
//format is U Y V Y
for (h=0; h<image.ysize; h++){
for(w=0; w<image.xsize/2; w++){
u = image.data [src+chU ] + (2*right.data[src+chU ]) - 255;
image.data[src] = CLAMP(u);
y0 =image.data [src+chY0] + right.data [src+chY0];
image.data[src+1] = CLAMP(y0);
v = image.data [src+chV ] + (2*right.data[src+chV ]) - 255;
image.data[src+2] = CLAMP(v);
y1 = image.data[src+chY1] + right.data [src+chY1];
image.data[src+3] = CLAMP(y1);
src+=4;
}
}
}
#ifdef __MMX__
void pix_add :: processRGBA_MMX(imageStruct &image, imageStruct &right){
int datasize = image.xsize * image.ysize * image.csize;
__m64*leftPix = reinterpret_cast<__m64*>(image.data);
__m64*rightPix = reinterpret_cast<__m64*>(right.data);
datasize=datasize/sizeof(__m64)+(datasize%sizeof(__m64)!=0);
__m64 l, r;
while (datasize--) {
l=leftPix[datasize];
r=rightPix[datasize];
leftPix[datasize]=_mm_adds_pu8(l,r);
}
_mm_empty();
}
void pix_add :: processYUV_MMX (imageStruct &image, imageStruct &right){
int datasize = image.xsize * image.ysize * image.csize;
__m64*leftPix = reinterpret_cast<__m64*>(image.data);
__m64*rightPix = reinterpret_cast<__m64*>(right.data);
datasize=datasize/sizeof(__m64)+(datasize%sizeof(__m64)!=0);
__m64 mask = _mm_setr_pi8(0x40, 0x00, 0x40, 0x00,
0x40, 0x00, 0x40, 0x00);
__m64 l, r;
while (datasize--) {
l=leftPix[datasize];
r=rightPix[datasize];
l=_mm_subs_pu8(l, mask);
r=_mm_subs_pu8(r, mask);
l=_mm_adds_pu8(l,r);
leftPix[datasize]=l;
}
_mm_empty();
}
void pix_add :: processGray_MMX(imageStruct &image, imageStruct &right){
processRGBA_MMX(image, right);
}
#endif
#ifdef __VEC__
void pix_add :: processYUV_Altivec(imageStruct &image, imageStruct &right)
{
int h,w,width;
width = image.xsize/8;
//format is U Y V Y
union
{
//unsigned int i;
short elements[8];
//vector signed char v;
vector signed short v;
}shortBuffer;
union
{
//unsigned int i;
unsigned char elements[16];
//vector signed char v;
vector unsigned char v;
}charBuffer;
//vector unsigned char c;
register vector signed short d, hiImage, loImage, YRight, UVRight, YImage, UVImage, UVTemp, YTemp;
// vector unsigned char zero = vec_splat_u8(0);
register vector unsigned char c,one;
// vector signed short zshort = vec_splat_s16(0);
vector unsigned char *inData = (vector unsigned char*) image.data;
vector unsigned char *rightData = (vector unsigned char*) right.data;
//Write the pixel (pair) to the transfer buffer
charBuffer.elements[0] = 2;
charBuffer.elements[1] = 1;
charBuffer.elements[2] = 2;
charBuffer.elements[3] = 1;
charBuffer.elements[4] = 2;
charBuffer.elements[5] = 1;
charBuffer.elements[6] = 2;
charBuffer.elements[7] = 1;
charBuffer.elements[8] = 2;
charBuffer.elements[9] = 1;
charBuffer.elements[10] = 2;
charBuffer.elements[11] = 1;
charBuffer.elements[12] = 2;
charBuffer.elements[13] = 1;
charBuffer.elements[14] = 2;
charBuffer.elements[15] = 1;
//Load it into the vector unit
c = charBuffer.v;
one = vec_splat_u8( 1 );
shortBuffer.elements[0] = 255;
//Load it into the vector unit
d = shortBuffer.v;
d = static_cast<vector signed short>(vec_splat(static_cast<vector signed short>(d),0));
#ifndef PPC970
UInt32 prefetchSize = GetPrefetchConstant( 16, 1, 256 );
vec_dst( inData, prefetchSize, 0 );
vec_dst( rightData, prefetchSize, 1 );
#endif
for ( h=0; h<image.ysize; h++){
for (w=0; w<width; w++)
{
#ifndef PPC970
vec_dst( inData, prefetchSize, 0 );
vec_dst( rightData, prefetchSize, 1 );
#endif
//interleaved U Y V Y chars
//vec_mule UV * 2 to short vector U V U V shorts
UVImage = static_cast<vector signed short>(vec_mule(one,inData[0]));
UVRight = static_cast<vector signed short>(vec_mule(c,rightData[0]));
//vec_mulo Y * 1 to short vector Y Y Y Y shorts
YImage = static_cast<vector signed short>(vec_mulo(c,inData[0]));
YRight = static_cast<vector signed short>(vec_mulo(c,rightData[0]));
//vel_subs UV - 255
UVRight = static_cast<vector signed short>(vec_subs(UVRight, d));
//vec_adds UV
UVTemp = vec_adds(UVImage,UVRight);
//vec_adds Y
YTemp = vec_adds(YImage,YRight);
hiImage = vec_mergeh(UVTemp,YTemp);
loImage = vec_mergel(UVTemp,YTemp);
//vec_mergel + vec_mergeh Y and UV
inData[0] = vec_packsu(hiImage, loImage);
inData++;
rightData++;
}
#ifndef PPC970
vec_dss( 0 );
vec_dss( 1 );
#endif
} /*end of working altivec function */
}
void pix_add :: processRGBA_Altivec(imageStruct &image, imageStruct &right)
{
int h,w,width;
width = image.xsize/4;
vector unsigned char *inData = (vector unsigned char*) image.data;
vector unsigned char *rightData = (vector unsigned char*) right.data;
#ifndef PPC970
UInt32 prefetchSize = GetPrefetchConstant( 16, 1, 256 );
vec_dst( inData, prefetchSize, 0 );
vec_dst( rightData, prefetchSize, 1 );
#endif
for ( h=0; h<image.ysize; h++){
for (w=0; w<width; w++)
{
#ifndef PPC970
vec_dst( inData, prefetchSize, 0 );
vec_dst( rightData, prefetchSize, 1 );
#endif
inData[0] = vec_adds(inData[0], rightData[0]);
inData++;
rightData++;
}
#ifndef PPC970
vec_dss( 0 );
vec_dss( 1 );
#endif
} /*end of working altivec function */
}
#endif
void pix_add :: processDualImage(imageStruct &image, imageStruct &right){
if (image.format!=right.format){
error("no method to combine (0x%X) and (0x%X)", image.format, right.format);
return;
}
int datasize = (image.xsize * image.ysize * image.csize)>>5;
int restsize = image.xsize * image.ysize * image.csize - datasize;
register unsigned char *leftPix = image.data;
register unsigned char *rightPix = right.data;
while (datasize--) {
ADD8(leftPix,rightPix);
leftPix+=8;rightPix+=8;
ADD8(leftPix,rightPix);
leftPix+=8;rightPix+=8;
ADD8(leftPix,rightPix);
leftPix+=8;rightPix+=8;
ADD8(leftPix,rightPix);
leftPix+=8;rightPix+=8;
}
while(restsize--){
*leftPix = CLAMP_HIGH(static_cast<int>(*leftPix + *rightPix));
leftPix++; rightPix++;
}
}
/////////////////////////////////////////////////////////
// static member function
//
/////////////////////////////////////////////////////////
void pix_add :: obj_setupCallback(t_class *)
{ }
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