wine/dlls/x11drv/dib_src_swap.c

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/*
* DIB conversion routinues for cases where the source
* has non-native byte order.
*
* Copyright (C) 2003 Huw Davies
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdlib.h>
#include "windef.h"
#include "x11drv.h"
#define FLIP_WORD(x) \
( *(x) = ( (*(x) & 0xff) << 8) | \
( (*(x) & 0xff00) >> 8) )
#define FLIP_TWO_WORDS(x) \
( *(x) = ( (*(x) & 0x00ff00ff) << 8) | \
( (*(x) & 0xff00ff00) >> 8) )
#define FLIP_DWORD(x) \
( *(x) = ( (*(x) & 0xff) << 24) | \
( (*(x) & 0xff00) << 8) | \
( (*(x) & 0xff0000) >> 8) | \
( (*(x) & 0xff000000) >> 24) )
/*
* 15 bit conversions
*/
static void convert_5x5_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
int x, y;
const DWORD *srcpixel;
DWORD *dstpixel;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for(x = 0; x < width/2; x++) {
/* Do 2 pixels at a time */
DWORD srcval = *srcpixel++;
*dstpixel++=((srcval << 8) & 0xff00ff00) |
((srcval >> 8) & 0x00ff00ff);
}
if(width&1) {
/* And the odd pixel */
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WORD srcval = *(const WORD*)srcpixel;
*(WORD*)dstpixel = ((srcval << 8) & 0xff00) |
((srcval >> 8) & 0x00ff);
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_555_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width/2; x++) {
/* Do 2 pixels at a time */
DWORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval >> 2) & 0x001f001f) | /* h */
((srcval << 8) & 0x03000300) | /* g - 2 bits */
((srcval >> 8) & 0x00e000e0) | /* g - 3 bits */
((srcval << 2) & 0x7c007c00); /* l */
}
if (width&1) {
/* And the the odd pixel */
WORD srcval;
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srcval=*((const WORD*)srcpixel);
*((WORD*)dstpixel)=((srcval >> 2) & 0x001f) | /* h */
((srcval << 8) & 0x0300) | /* g - 2 bits */
((srcval >> 8) & 0x00e0) | /* g - 3 bits */
((srcval << 2) & 0x7c00); /* l */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_555_to_565_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width/2; x++) {
/* Do 2 pixels at a time */
DWORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval << 9) & 0xfe00fe00) | /* h, g - 2 bits*/
((srcval >> 7) & 0x01c001c0) | /* g - 3 bits */
((srcval << 4) & 0x00200020) | /* g - 1 bit */
((srcval >> 8) & 0x001f001f); /* l */
}
if (width&1) {
/* And the the odd pixel */
WORD srcval;
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srcval=*((const WORD*)srcpixel);
*((WORD*)dstpixel)=((srcval << 9) & 0xfe00) | /* h, g - 2bits*/
((srcval >> 7) & 0x01c0) | /* g - 3 bits */
((srcval << 4) & 0x0020) | /* g - 1 bit */
((srcval >> 8) & 0x001f); /* l */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_555_to_565_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width/2; x++) {
/* Do 2 pixels at a time */
DWORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval >> 2) & 0x001f001f) | /* h */
((srcval << 9) & 0x06000600) | /* g - 2 bits*/
((srcval >> 7) & 0x01c001c0) | /* g - 3 bits */
((srcval << 4) & 0x00200020) | /* g - 1 bits */
((srcval << 3) & 0xf800f800); /* l */
}
if (width&1) {
/* And the the odd pixel */
WORD srcval;
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srcval=*((const WORD*)srcpixel);
*((WORD*)dstpixel)=((srcval >> 2) & 0x001f) | /* h */
((srcval << 9) & 0x0600) | /* g - 2 bits */
((srcval >> 7) & 0x01c0) | /* g - 3 bits */
((srcval << 4) & 0x0020) | /* g - 1 bit */
((srcval << 3) & 0xf800); /* l */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_555_to_888_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const WORD* srcpixel;
BYTE* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
dstpixel[0]=((srcval >> 5) & 0xf8) | /* l */
((srcval >> 10) & 0x07); /* l - 3 bits */
dstpixel[1]=((srcval << 6) & 0xc0) | /* g - 2 bits */
((srcval >> 10) & 0x38) | /* g - 3 bits */
((srcval << 1) & 0x06) | /* g - 2 bits */
((srcval >> 15) & 0x01); /* g - 1 bit */
dstpixel[2]=((srcval << 1) & 0xf8) | /* h */
((srcval >> 4) & 0x07); /* h - 3 bits */
dstpixel+=3;
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_555_to_888_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const WORD* srcpixel;
BYTE* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
dstpixel[0]=((srcval << 1) & 0xf8) | /* h */
((srcval >> 4) & 0x07); /* h - 3 bits */
dstpixel[1]=((srcval << 6) & 0xc0) | /* g - 2 bits */
((srcval >> 10) & 0x38) | /* g - 3 bits */
((srcval << 1) & 0x06) | /* g - 2 bits */
((srcval >> 15) & 0x01); /* g - 1 bits */
dstpixel[2]=((srcval >> 5) & 0xf8) | /* l */
((srcval >> 10) & 0x07); /* l - 3 bits */
dstpixel+=3;
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_555_to_0888_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const WORD* srcpixel;
DWORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval << 17) & 0xf80000) | /* h */
((srcval << 12) & 0x070000) | /* h - 3 bits */
((srcval << 14) & 0x00c000) | /* g - 2 bits */
((srcval >> 2) & 0x003800) | /* g - 3 bits */
((srcval << 9) & 0x000600) | /* g - 2 bits */
((srcval >> 7) & 0x000100) | /* g - 1 bit */
((srcval >> 5) & 0x0000f8) | /* l */
((srcval >> 10) & 0x000007); /* l - 3 bits */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_555_to_0888_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const WORD* srcpixel;
DWORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval << 1) & 0x0000f8) | /* h */
((srcval >> 4) & 0x000007) | /* h - 3 bits */
((srcval << 14) & 0x00c000) | /* g - 2 bits */
((srcval >> 2) & 0x003800) | /* g - 3 bits */
((srcval << 9) & 0x000600) | /* g - 2 bits */
((srcval >> 7) & 0x000100) | /* g - 1 bit */
((srcval << 11) & 0xf80000) | /* l */
((srcval << 6) & 0x070000); /* l - 3 bits */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_5x5_to_any0888_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
WORD rsrc, WORD gsrc, WORD bsrc,
void* dstbits, int dstlinebytes,
DWORD rdst, DWORD gdst, DWORD bdst)
{
int rRightShift1,gRightShift1,bRightShift1;
int rRightShift2,gRightShift2,bRightShift2;
BYTE gMask1,gMask2;
int rLeftShift,gLeftShift,bLeftShift;
const WORD* srcpixel;
DWORD* dstpixel;
int x,y;
/* Note, the source pixel value is shifted left by 16 bits so that
* we know we will always have to shift right to extract the components.
*/
rRightShift1=16+X11DRV_DIB_MaskToShift(rsrc)-3;
gRightShift1=16+X11DRV_DIB_MaskToShift(gsrc)-3;
bRightShift1=16+X11DRV_DIB_MaskToShift(bsrc)-3;
rRightShift2=rRightShift1+5;
gRightShift2=gRightShift1+5;
bRightShift2=bRightShift1+5;
if (gsrc==0x03e0) {
/* Green has 5 bits, like the others */
gMask1=0xf8;
gMask2=0x07;
} else {
/* Green has 6 bits, not 5. Compensate. */
gRightShift1++;
gRightShift2+=2;
gMask1=0xfc;
gMask2=0x03;
}
rLeftShift=X11DRV_DIB_MaskToShift(rdst);
gLeftShift=X11DRV_DIB_MaskToShift(gdst);
bLeftShift=X11DRV_DIB_MaskToShift(bdst);
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
DWORD srcval;
BYTE red,green,blue;
srcval=*srcpixel++ << 16;
FLIP_TWO_WORDS(&srcval);
red= ((srcval >> rRightShift1) & 0xf8) |
((srcval >> rRightShift2) & 0x07);
green=((srcval >> gRightShift1) & gMask1) |
((srcval >> gRightShift2) & gMask2);
blue= ((srcval >> bRightShift1) & 0xf8) |
((srcval >> bRightShift2) & 0x07);
*dstpixel++=(red << rLeftShift) |
(green << gLeftShift) |
(blue << bLeftShift);
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
/*
* 16 bits conversions
*/
static void convert_565_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width/2; x++) {
/* Do 2 pixels at a time */
DWORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval << 3) & 0xf800f800) | /* l */
((srcval << 8) & 0x07000700) | /* g - 3 bits */
((srcval >> 8) & 0x00e000e0) | /* g - 3 bits */
((srcval >> 3) & 0x001f001f); /* h */
}
if (width&1) {
/* And the the odd pixel */
WORD srcval;
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srcval=*((const WORD*)srcpixel);
*((WORD*)dstpixel)=((srcval << 3) & 0xf800) | /* l */
((srcval << 8) & 0x0700) | /* g - 3 bits */
((srcval >> 8) & 0x00e0) | /* g - 3 bits */
((srcval >> 3) & 0x001f); /* h */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_565_to_555_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width/2; x++) {
/* Do 2 pixels at a time */
DWORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval << 7) & 0x7f807f80) | /* h, g - 3 bits */
((srcval >> 9) & 0x00600060) | /* g - 2 bits */
((srcval >> 8) & 0x001f001f); /* l */
}
if (width&1) {
/* And the the odd pixel */
WORD srcval;
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srcval=*((const WORD*)srcpixel);
*((WORD*)dstpixel)=((srcval << 7) & 0x7f80) | /* h, g - 3 bits */
((srcval >> 9) & 0x0060) | /* g - 2 bits */
((srcval >> 8) & 0x001f); /* l */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_565_to_555_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width/2; x++) {
/* Do 2 pixels at a time */
DWORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval >> 3) & 0x001f001f) | /* h */
((srcval >> 9) & 0x00600060) | /* g - 2 bits */
((srcval << 7) & 0x03800380) | /* g - 3 bits */
((srcval << 2) & 0x7c007c00); /* l */
}
if (width&1) {
/* And the the odd pixel */
WORD srcval;
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srcval=*((const WORD*)srcpixel);
*((WORD*)dstpixel)=((srcval >> 3) & 0x001f) | /* h */
((srcval >> 9) & 0x0060) | /* g - 2 bits */
((srcval << 7) & 0x0380) | /* g - 3 bits */
((srcval << 2) & 0x7c00); /* l */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_565_to_888_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const WORD* srcpixel;
BYTE* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
dstpixel[0]=((srcval >> 5) & 0xf8) | /* l */
((srcval >> 10) & 0x07); /* l - 3 bits */
dstpixel[1]=((srcval << 5) & 0xe0) | /* g - 3 bits */
((srcval >> 11) & 0x1c) | /* g - 3 bits */
((srcval >> 1) & 0x03); /* g - 2 bits */
dstpixel[2]=((srcval >> 0) & 0xf8) | /* h */
((srcval >> 5) & 0x07); /* h - 3 bits */
dstpixel+=3;
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_565_to_888_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const WORD* srcpixel;
BYTE* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
dstpixel[0]=((srcval >> 0) & 0xf8) | /* h */
((srcval >> 5) & 0x07); /* h - 3 bits */
dstpixel[1]=((srcval << 5) & 0xe0) | /* g - 3 bits */
((srcval >> 11) & 0x1c) | /* g - 3 bits */
((srcval >> 1) & 0x03); /* g - 2 bits */
dstpixel[2]=((srcval >> 5) & 0xf8) | /* l */
((srcval >> 10) & 0x07); /* l - 3 bits */
dstpixel+=3;
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_565_to_0888_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const WORD* srcpixel;
DWORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval << 16) & 0xf80000) | /* h */
((srcval << 11) & 0x070000) | /* h - 3 bits */
((srcval << 13) & 0x00e000) | /* g - 3 bits */
((srcval >> 3) & 0x001c00) | /* g - 3 bits */
((srcval << 7) & 0x000300) | /* g - 2 bits */
((srcval >> 5) & 0x0000f8) | /* l */
((srcval >> 10) & 0x000007); /* l - 3 bits */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_565_to_0888_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const WORD* srcpixel;
DWORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
WORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval >> 0) & 0x0000f8) | /* h */
((srcval >> 5) & 0x000007) | /* h - 3 bits */
((srcval << 13) & 0x00e000) | /* g - 3 bits */
((srcval >> 3) & 0x001c00) | /* g - 3 bits */
((srcval << 7) & 0x000300) | /* g - 2 bits */
((srcval << 11) & 0xf80000) | /* l */
((srcval << 6) & 0x070000); /* l - 3 bits */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
/*
* 24 bit conversions
*/
static void convert_888_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
int x, y;
for (y=0; y<height; y++) {
for(x = 0; x < ((width+1)*3/4); x++) {
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DWORD srcval = *((const DWORD*)srcbits + x);
*((DWORD*)dstbits + x) = ((srcval << 24) & 0xff000000) |
((srcval << 8) & 0x00ff0000) |
((srcval >> 8) & 0x0000ff00) |
((srcval >> 24) & 0x000000ff);
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_888_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
DWORD srcarray[3];
int x,y;
int oddwidth = width & 3;
width = width/4;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
/* Do 4 pixels at a time: 3 dwords in and 3 dwords out */
*dstpixel++= ((srcpixel[0] >> 8) & 0x00ffffff) | /* l1, g1, h1 */
((srcpixel[1] << 8) & 0xff000000); /* h2 */
*dstpixel++= ((srcpixel[1] >> 24) & 0x000000ff) | /* g2 */
((srcpixel[0] << 8) & 0x0000ff00) | /* l2 */
((srcpixel[2] >> 8) & 0x00ff0000) | /* h3 */
((srcpixel[1] << 24) & 0xff000000); /* g3 */
*dstpixel++= ((srcpixel[1] >> 8) & 0x000000ff) | /* l3 */
((srcpixel[2] << 8) & 0xffffff00); /* l4, g4, h4 */
srcpixel+=3;
}
/* And now up to 3 odd pixels */
if(oddwidth) {
BYTE *dstbyte, *srcbyte;
memcpy(srcarray,srcpixel,oddwidth*sizeof(DWORD));
dstbyte = (LPBYTE)dstpixel;
srcbyte = (LPBYTE)srcarray;
for (x=0; x<oddwidth; x++) {
FLIP_DWORD(srcarray+x);
dstbyte[0] = srcbyte[2];
dstbyte[1] = srcbyte[1];
dstbyte[2] = srcbyte[0];
srcbyte+=3;
dstbyte+=3;
}
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_888_to_555_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
const BYTE* srcbyte;
WORD* dstpixel;
DWORD srcarray[3];
int x,y;
int oddwidth;
oddwidth=width & 3;
width=width/4;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
/* Do 4 pixels at a time: 3 dwords in and 4 words out */
DWORD srcval1,srcval2;
srcval1=srcpixel[0];
FLIP_DWORD(&srcval1);
dstpixel[0]=((srcval1 >> 3) & 0x001f) | /* l1 */
((srcval1 >> 6) & 0x03e0) | /* g1 */
((srcval1 >> 9) & 0x7c00); /* h1 */
srcval2=srcpixel[1];
FLIP_DWORD(&srcval2);
dstpixel[1]=((srcval1 >> 27) & 0x001f) | /* l2 */
((srcval2 << 2) & 0x03e0) | /* g2 */
((srcval2 >> 1) & 0x7c00); /* h2 */
srcval1=srcpixel[2];
FLIP_DWORD(&srcval1);
dstpixel[2]=((srcval2 >> 19) & 0x001f) | /* l3 */
((srcval2 >> 22) & 0x03e0) | /* g3 */
((srcval1 << 7) & 0x7c00); /* h3 */
dstpixel[3]=((srcval1 >> 11) & 0x001f) | /* l4 */
((srcval1 >> 14) & 0x03e0) | /* g4 */
((srcval1 >> 17) & 0x7c00); /* h4 */
srcpixel+=3;
dstpixel+=4;
}
/* And now up to 3 odd pixels */
if(oddwidth) {
memcpy(srcarray,srcpixel,oddwidth*sizeof(DWORD));
srcbyte = (LPBYTE)srcarray;
for (x=0; x<oddwidth; x++) {
WORD dstval;
FLIP_DWORD(srcarray+x);
dstval =((srcbyte[0] >> 3) & 0x001f); /* l */
dstval|=((srcbyte[1] << 2) & 0x03e0); /* g */
dstval|=((srcbyte[2] << 7) & 0x7c00); /* h */
*dstpixel++=dstval;
srcbyte+=3;
}
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_888_to_555_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
const BYTE* srcbyte;
WORD* dstpixel;
DWORD srcarray[3];
int x,y;
int oddwidth;
oddwidth=width & 3;
width=width/4;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
/* Do 4 pixels at a time: 3 dwords in and 4 words out */
DWORD srcval1,srcval2;
srcval1=srcpixel[0];
FLIP_DWORD(&srcval1);
dstpixel[0]=((srcval1 << 7) & 0x7c00) | /* l1 */
((srcval1 >> 6) & 0x03e0) | /* g1 */
((srcval1 >> 19) & 0x001f); /* h1 */
srcval2=srcpixel[1];
FLIP_DWORD(&srcval2);
dstpixel[1]=((srcval1 >> 17) & 0x7c00) | /* l2 */
((srcval2 << 2) & 0x03e0) | /* g2 */
((srcval2 >> 11) & 0x001f); /* h2 */
srcval1=srcpixel[2];
FLIP_DWORD(&srcval1);
dstpixel[2]=((srcval2 >> 9) & 0x7c00) | /* l3 */
((srcval2 >> 22) & 0x03e0) | /* g3 */
((srcval1 >> 3) & 0x001f); /* h3 */
dstpixel[3]=((srcval1 >> 1) & 0x7c00) | /* l4 */
((srcval1 >> 14) & 0x03e0) | /* g4 */
((srcval1 >> 27) & 0x001f); /* h4 */
srcpixel+=3;
dstpixel+=4;
}
/* And now up to 3 odd pixels */
if(oddwidth) {
memcpy(srcarray,srcpixel,oddwidth*sizeof(DWORD));
srcbyte = (LPBYTE)srcarray;
for (x=0; x<oddwidth; x++) {
WORD dstval;
FLIP_DWORD(srcarray+x);
dstval =((srcbyte[0] << 7) & 0x7c00); /* l */
dstval|=((srcbyte[1] << 2) & 0x03e0); /* g */
dstval|=((srcbyte[2] >> 3) & 0x001f); /* h */
*dstpixel++=dstval;
srcbyte+=3;
}
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_888_to_565_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
const BYTE* srcbyte;
WORD* dstpixel;
DWORD srcarray[3];
int x,y;
int oddwidth;
oddwidth=width & 3;
width=width/4;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
/* Do 4 pixels at a time: 3 dwords in and 4 words out */
DWORD srcval1,srcval2;
srcval1=srcpixel[0];
FLIP_DWORD(&srcval1);
dstpixel[0]=((srcval1 >> 3) & 0x001f) | /* l1 */
((srcval1 >> 5) & 0x07e0) | /* g1 */
((srcval1 >> 8) & 0xf800); /* h1 */
srcval2=srcpixel[1];
FLIP_DWORD(&srcval2);
dstpixel[1]=((srcval1 >> 27) & 0x001f) | /* l2 */
((srcval2 << 3) & 0x07e0) | /* g2 */
( srcval2 & 0xf800); /* h2 */
srcval1=srcpixel[2];
FLIP_DWORD(&srcval1);
dstpixel[2]=((srcval2 >> 19) & 0x001f) | /* l3 */
((srcval2 >> 21) & 0x07e0) | /* g3 */
((srcval1 << 8) & 0xf800); /* h3 */
dstpixel[3]=((srcval1 >> 11) & 0x001f) | /* l4 */
((srcval1 >> 13) & 0x07e0) | /* g4 */
((srcval1 >> 16) & 0xf800); /* h4 */
srcpixel+=3;
dstpixel+=4;
}
/* And now up to 3 odd pixels */
if(oddwidth) {
memcpy(srcarray,srcpixel,oddwidth*sizeof(DWORD));
srcbyte = (LPBYTE)srcarray;
for (x=0; x<oddwidth; x++) {
WORD dstval;
FLIP_DWORD(srcarray+x);
dstval =((srcbyte[0] >> 3) & 0x001f); /* l */
dstval|=((srcbyte[1] << 3) & 0x07e0); /* g */
dstval|=((srcbyte[2] << 8) & 0xf800); /* h */
*dstpixel++=dstval;
srcbyte+=3;
}
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_888_to_565_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
const BYTE* srcbyte;
WORD* dstpixel;
DWORD srcarray[3];
int x,y;
int oddwidth;
oddwidth=width & 3;
width=width/4;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
/* Do 4 pixels at a time: 3 dwords in and 4 words out */
DWORD srcval1,srcval2;
srcval1=srcpixel[0];
FLIP_DWORD(&srcval1);
dstpixel[0]=((srcval1 << 8) & 0xf800) | /* l1 */
((srcval1 >> 5) & 0x07e0) | /* g1 */
((srcval1 >> 19) & 0x001f); /* h1 */
srcval2=srcpixel[1];
FLIP_DWORD(&srcval2);
dstpixel[1]=((srcval1 >> 16) & 0xf800) | /* l2 */
((srcval2 << 3) & 0x07e0) | /* g2 */
((srcval2 >> 11) & 0x001f); /* h2 */
srcval1=srcpixel[2];
FLIP_DWORD(&srcval1);
dstpixel[2]=((srcval2 >> 8) & 0xf800) | /* l3 */
((srcval2 >> 21) & 0x07e0) | /* g3 */
((srcval1 >> 3) & 0x001f); /* h3 */
dstpixel[3]=(srcval1 & 0xf800) | /* l4 */
((srcval1 >> 13) & 0x07e0) | /* g4 */
((srcval1 >> 27) & 0x001f); /* h4 */
srcpixel+=3;
dstpixel+=4;
}
/* And now up to 3 odd pixels */
if(oddwidth) {
memcpy(srcarray,srcpixel,oddwidth*sizeof(DWORD));
srcbyte = (LPBYTE)srcarray;
for (x=0; x<oddwidth; x++) {
WORD dstval;
FLIP_DWORD(srcarray+x);
dstval =((srcbyte[0] << 8) & 0xf800); /* l */
dstval|=((srcbyte[1] << 3) & 0x07e0); /* g */
dstval|=((srcbyte[2] >> 3) & 0x001f); /* h */
*dstpixel++=dstval;
srcbyte+=3;
}
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_888_to_0888_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
DWORD srcarray[3];
int x,y;
int oddwidth;
oddwidth=width & 3;
width=width/4;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
/* Do 4 pixels at a time: 3 dwords in and 4 dwords out */
DWORD srcval1,srcval2;
srcval1=srcpixel[0];
FLIP_DWORD(&srcval1);
dstpixel[0]=( srcval1 & 0x00ffffff); /* h1, g1, l1 */
srcval2=srcpixel[1];
FLIP_DWORD(&srcval2);
dstpixel[1]=( srcval1 >> 24) | /* l2 */
((srcval2 << 8) & 0x00ffff00); /* h2, g2 */
srcval1=srcpixel[2];
FLIP_DWORD(&srcval1);
dstpixel[2]=( srcval2 >> 16) | /* g3, l3 */
((srcval1 << 16) & 0x00ff0000); /* h3 */
dstpixel[3]=( srcval1 >> 8); /* h4, g4, l4 */
srcpixel+=3;
dstpixel+=4;
}
/* And now up to 3 odd pixels */
if(oddwidth) {
memcpy(srcarray,srcpixel,oddwidth*sizeof(DWORD));
srcpixel = srcarray;
for (x=0; x<oddwidth; x++) {
DWORD srcval;
FLIP_DWORD(srcarray+x);
srcval=*srcpixel;
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srcpixel=(const DWORD*)(((const char*)srcpixel)+3);
*dstpixel++=( srcval & 0x00ffffff); /* h, g, l */
}
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_888_to_0888_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
DWORD srcarray[3];
int x,y;
int oddwidth;
oddwidth=width & 3;
width=width/4;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
/* Do 4 pixels at a time: 3 dwords in and 4 dwords out */
DWORD srcval1,srcval2;
srcval1=srcpixel[0];
FLIP_DWORD(&srcval1);
dstpixel[0]=((srcval1 >> 16) & 0x0000ff) | /* h1 */
( srcval1 & 0x00ff00) | /* g1 */
((srcval1 << 16) & 0xff0000); /* l1 */
srcval2=srcpixel[1];
FLIP_DWORD(&srcval2);
dstpixel[1]=((srcval1 >> 8) & 0xff0000) | /* l2 */
((srcval2 << 8) & 0x00ff00) | /* g2 */
((srcval2 >> 8) & 0x0000ff); /* h2 */
srcval1=srcpixel[2];
FLIP_DWORD(&srcval1);
dstpixel[2]=( srcval2 & 0xff0000) | /* l3 */
((srcval2 >> 16) & 0x00ff00) | /* g3 */
( srcval1 & 0x0000ff); /* h3 */
dstpixel[3]=((srcval1 >> 24) & 0x0000ff) | /* h4 */
((srcval1 >> 8) & 0x00ff00) | /* g4 */
((srcval1 << 8) & 0xff0000); /* l4 */
srcpixel+=3;
dstpixel+=4;
}
/* And now up to 3 odd pixels */
if(oddwidth) {
memcpy(srcarray,srcpixel,oddwidth*sizeof(DWORD));
srcpixel = srcarray;
for (x=0; x<oddwidth; x++) {
DWORD srcval;
FLIP_DWORD(srcarray+x);
srcval=*srcpixel;
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srcpixel=(const DWORD*)(((const char*)srcpixel)+3);
*dstpixel++=((srcval >> 16) & 0x0000ff) | /* h */
( srcval & 0x00ff00) | /* g */
((srcval << 16) & 0xff0000); /* l */
}
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_rgb888_to_any0888_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes,
DWORD rdst, DWORD gdst, DWORD bdst)
{
int rLeftShift,gLeftShift,bLeftShift;
const DWORD* srcpixel;
DWORD* dstpixel;
int x,y;
DWORD srcarray[3];
rLeftShift=X11DRV_DIB_MaskToShift(rdst);
gLeftShift=X11DRV_DIB_MaskToShift(gdst);
bLeftShift=X11DRV_DIB_MaskToShift(bdst);
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width/4; x++) {
/* Do 4 pixels at a time: 3 dwords in and 4 dwords out */
DWORD srcval1, srcval2;
srcval1=*srcpixel++;
*dstpixel++=(((srcval1 >> 24) & 0xff) << bLeftShift) | /* b1 */
(((srcval1 >> 16) & 0xff) << gLeftShift) | /* g1 */
(((srcval1 >> 8) & 0xff) << rLeftShift); /* r1 */
srcval2=*srcpixel++;
*dstpixel++=(((srcval1 >> 0) & 0xff) << bLeftShift) | /* b2 */
(((srcval2 >> 24) & 0xff) << gLeftShift) | /* g2 */
(((srcval2 >> 16) & 0xff) << rLeftShift); /* r2 */
srcval1=*srcpixel++;
*dstpixel++=(((srcval2 >> 8) & 0xff) << bLeftShift) | /* b3 */
(((srcval2 >> 0) & 0xff) << gLeftShift) | /* g3 */
(((srcval1 >> 24) & 0xff) << rLeftShift); /* r3 */
*dstpixel++=(((srcval1 >> 16) & 0xff) << bLeftShift) | /* b4 */
(((srcval1 >> 8) & 0xff) << gLeftShift) | /* g4 */
(((srcval1 >> 0) & 0xff) << rLeftShift); /* r4 */
}
/* And now up to 3 odd pixels */
if(width&3) {
memcpy(srcarray,srcpixel,width&3*sizeof(DWORD));
srcpixel = srcarray;
for (x=0; x < (width&3); x++) {
DWORD srcval;
FLIP_DWORD(srcarray+x);
srcval=*srcpixel;
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srcpixel=(const DWORD*)(((const char*)srcpixel)+3);
*dstpixel++=(((srcval >> 0) & 0xff) << bLeftShift) | /* b */
(((srcval >> 8) & 0xff) << gLeftShift) | /* g */
(((srcval >> 16) & 0xff) << rLeftShift); /* r */
}
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_bgr888_to_any0888_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes,
DWORD rdst, DWORD gdst, DWORD bdst)
{
int rLeftShift,gLeftShift,bLeftShift;
const DWORD* srcpixel;
DWORD* dstpixel;
int x,y;
DWORD srcarray[3];
rLeftShift=X11DRV_DIB_MaskToShift(rdst);
gLeftShift=X11DRV_DIB_MaskToShift(gdst);
bLeftShift=X11DRV_DIB_MaskToShift(bdst);
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width/4; x++) {
/* Do 4 pixels at a time: 3 dwords in and 4 dwords out */
DWORD srcval1, srcval2;
srcval1=*srcpixel++;
*dstpixel++=(((srcval1 >> 24) & 0xff) << rLeftShift) | /* r1 */
(((srcval1 >> 16) & 0xff) << gLeftShift) | /* g1 */
(((srcval1 >> 8) & 0xff) << bLeftShift); /* b1 */
srcval2=*srcpixel++;
*dstpixel++=(((srcval1 >> 0) & 0xff) << rLeftShift) | /* r2 */
(((srcval2 >> 24) & 0xff) << gLeftShift) | /* g2 */
(((srcval2 >> 16) & 0xff) << bLeftShift); /* b2 */
srcval1=*srcpixel++;
*dstpixel++=(((srcval2 >> 8) & 0xff) << rLeftShift) | /* r3 */
(((srcval2 >> 0) & 0xff) << gLeftShift) | /* g3 */
(((srcval1 >> 24) & 0xff) << bLeftShift); /* b3 */
*dstpixel++=(((srcval1 >> 16) & 0xff) << rLeftShift) | /* r4 */
(((srcval1 >> 8) & 0xff) << gLeftShift) | /* g4 */
(((srcval1 >> 0) & 0xff) << bLeftShift); /* b4 */
}
/* And now up to 3 odd pixels */
if(width&3) {
memcpy(srcarray,srcpixel,width&3*sizeof(DWORD));
srcpixel = srcarray;
for (x=0; x < (width&3); x++) {
DWORD srcval;
FLIP_DWORD(srcarray+x);
srcval=*srcpixel;
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srcpixel=(const DWORD*)(((const char*)srcpixel)+3);
*dstpixel++=(((srcval >> 0) & 0xff) << rLeftShift) | /* r */
(((srcval >> 8) & 0xff) << gLeftShift) | /* g */
(((srcval >> 16) & 0xff) << bLeftShift); /* b */
}
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
/*
* 32 bit conversions
*/
static void convert_0888_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
int x, y;
for (y=0; y<height; y++) {
for(x = 0; x < width; x++) {
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DWORD srcval = *((const DWORD*)srcbits + x);
*((DWORD*)dstbits + x) = ((srcval << 24) & 0xff000000) |
((srcval << 8) & 0x00ff0000) |
((srcval >> 8) & 0x0000ff00) |
((srcval >> 24) & 0x000000ff);
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_0888_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
DWORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval >> 8) & 0x00ffffff);
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_0888_any_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
DWORD rsrc, DWORD gsrc, DWORD bsrc,
void* dstbits, int dstlinebytes,
DWORD rdst, DWORD gdst, DWORD bdst)
{
int rRightShift,gRightShift,bRightShift;
int rLeftShift,gLeftShift,bLeftShift;
const DWORD* srcpixel;
DWORD* dstpixel;
int x,y;
rRightShift=X11DRV_DIB_MaskToShift(rsrc);
gRightShift=X11DRV_DIB_MaskToShift(gsrc);
bRightShift=X11DRV_DIB_MaskToShift(bsrc);
rLeftShift=X11DRV_DIB_MaskToShift(rdst);
gLeftShift=X11DRV_DIB_MaskToShift(gdst);
bLeftShift=X11DRV_DIB_MaskToShift(bdst);
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
DWORD srcval;
srcval=*srcpixel++;
FLIP_DWORD(&srcval);
*dstpixel++=(((srcval >> rRightShift) & 0xff) << rLeftShift) |
(((srcval >> gRightShift) & 0xff) << gLeftShift) |
(((srcval >> bRightShift) & 0xff) << bLeftShift);
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_0888_to_555_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
WORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
DWORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval >> 1) & 0x7c00) | /* h */
((srcval >> 14) & 0x03e0) | /* g */
((srcval >> 27) & 0x001f); /* l */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_0888_to_555_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
WORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
DWORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval >> 11) & 0x001f) | /* h */
((srcval >> 14) & 0x03e0) | /* g */
((srcval >> 17) & 0x7c00); /* l */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_0888_to_565_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
WORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
DWORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval >> 0) & 0xf800) | /* h */
((srcval >> 13) & 0x07e0) | /* g */
((srcval >> 27) & 0x001f); /* l */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_0888_to_565_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
WORD* dstpixel;
int x,y;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
DWORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval >> 11) & 0x001f) | /* h */
((srcval >> 13) & 0x07e0) | /* g */
((srcval >> 16) & 0xf800); /* l */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_any0888_to_5x5_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
DWORD rsrc, DWORD gsrc, DWORD bsrc,
void* dstbits, int dstlinebytes,
WORD rdst, WORD gdst, WORD bdst)
{
int rRightShift,gRightShift,bRightShift;
int rLeftShift,gLeftShift,bLeftShift;
const DWORD* srcpixel;
WORD* dstpixel;
int x,y;
/* Here is how we proceed. Assume we have rsrc=0x0000ff00 and our pixel
* contains 0x11223344.
* - first we shift 0x11223344 right by rRightShift to bring the most
* significant bits of the red components in the bottom 5 (or 6) bits
* -> 0x4488c
* - then we remove non red bits by anding with the modified rdst (0x1f)
* -> 0x0c
* - finally shift these bits left by rLeftShift so that they end up in
* the right place
* -> 0x3000
*/
rRightShift=X11DRV_DIB_MaskToShift(rsrc)+3;
gRightShift=X11DRV_DIB_MaskToShift(gsrc);
gRightShift+=(gdst==0x07e0?2:3);
bRightShift=X11DRV_DIB_MaskToShift(bsrc)+3;
rLeftShift=X11DRV_DIB_MaskToShift(rdst);
rdst=rdst >> rLeftShift;
gLeftShift=X11DRV_DIB_MaskToShift(gdst);
gdst=gdst >> gLeftShift;
bLeftShift=X11DRV_DIB_MaskToShift(bdst);
bdst=bdst >> bLeftShift;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
DWORD srcval;
srcval=*srcpixel++;
FLIP_DWORD(&srcval);
*dstpixel++=(((srcval >> rRightShift) & rdst) << rLeftShift) |
(((srcval >> gRightShift) & gdst) << gLeftShift) |
(((srcval >> bRightShift) & bdst) << bLeftShift);
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_0888_to_888_asis_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
BYTE* dstbyte;
int x,y;
int oddwidth;
oddwidth=width & 3;
width=width/4;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
/* Do 4 pixels at a time: 4 dwords in and 3 dwords out */
DWORD srcval1, srcval2;
srcval1 = *srcpixel++;
srcval2 = *srcpixel++;
*dstpixel++= ((srcval1 >> 24) & 0x000000ff) | /* l1 */
((srcval1 >> 8) & 0x0000ff00) | /* g1 */
((srcval1 << 8) & 0x00ff0000) | /* h1 */
( srcval2 & 0xff000000); /* l2 */
srcval1 = *srcpixel++;
*dstpixel++= ((srcval2 >> 16) & 0x000000ff) | /* g2 */
( srcval2 & 0x0000ff00) | /* h2 */
((srcval1 >> 8) & 0x00ff0000) | /* l3 */
((srcval1 << 8) & 0xff000000); /* g3 */
srcval2 = *srcpixel++;
*dstpixel++= ((srcval1 >> 8) & 0x000000ff) | /* h3 */
((srcval2 >> 16) & 0x0000ff00) | /* l4 */
( srcval2 & 0x00ff0000) | /* g4 */
((srcval2 << 16) & 0xff000000); /* h4 */
}
/* And now up to 3 odd pixels */
dstbyte=(BYTE*)dstpixel;
for (x=0; x<oddwidth; x++) {
DWORD srcval;
srcval=*srcpixel++;
FLIP_DWORD(&srcval);
*((WORD*)dstbyte)=srcval; /* h, g */
dstbyte+=sizeof(WORD);
*dstbyte++=srcval >> 16; /* l */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_0888_to_888_reverse_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
void* dstbits, int dstlinebytes)
{
const DWORD* srcpixel;
DWORD* dstpixel;
BYTE* dstbyte;
int x,y;
int oddwidth;
oddwidth=width & 3;
width=width/4;
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
/* Do 4 pixels at a time: 4 dwords in and 3 dwords out */
DWORD srcval1,srcval2;
srcval1=*srcpixel++;
srcval2= ((srcval1 >> 8 ) & 0x00ffffff); /* l1, g1, h1 */
srcval1=*srcpixel++;
*dstpixel++=srcval2 |
((srcval1 << 16) & 0xff000000); /* h2 */
srcval2= ((srcval1 >> 16) & 0x0000ffff); /* l2, g2 */
srcval1=*srcpixel++;
*dstpixel++=srcval2 |
((srcval1 << 8) & 0xffff0000); /* g3, h3 */
srcval2= ((srcval1 >> 24) & 0x000000ff); /* l3 */
srcval1=*srcpixel++;
*dstpixel++=srcval2 |
srcval1; /* l4, g4, h4 */
}
/* And now up to 3 odd pixels */
dstbyte=(BYTE*)dstpixel;
for (x=0; x<oddwidth; x++) {
DWORD srcval;
srcval=*srcpixel++;
*((WORD*)dstbyte)=((srcval >> 8) & 0xffff); /* g, h */
dstbyte+=sizeof(WORD);
*dstbyte++= srcval >> 24; /* l */
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_any0888_to_rgb888_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
DWORD rsrc, DWORD gsrc, DWORD bsrc,
void* dstbits, int dstlinebytes)
{
int rRightShift,gRightShift,bRightShift;
const DWORD* srcpixel;
BYTE* dstpixel;
int x,y;
rRightShift=X11DRV_DIB_MaskToShift(rsrc);
gRightShift=X11DRV_DIB_MaskToShift(gsrc);
bRightShift=X11DRV_DIB_MaskToShift(bsrc);
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
DWORD srcval;
srcval=*srcpixel++;
FLIP_DWORD(&srcval);
dstpixel[0]=(srcval >> bRightShift); /* b */
dstpixel[1]=(srcval >> gRightShift); /* g */
dstpixel[2]=(srcval >> rRightShift); /* r */
dstpixel+=3;
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
static void convert_any0888_to_bgr888_src_byteswap(int width, int height,
const void* srcbits, int srclinebytes,
DWORD rsrc, DWORD gsrc, DWORD bsrc,
void* dstbits, int dstlinebytes)
{
int rRightShift,gRightShift,bRightShift;
const DWORD* srcpixel;
BYTE* dstpixel;
int x,y;
rRightShift=X11DRV_DIB_MaskToShift(rsrc);
gRightShift=X11DRV_DIB_MaskToShift(gsrc);
bRightShift=X11DRV_DIB_MaskToShift(bsrc);
for (y=0; y<height; y++) {
srcpixel=srcbits;
dstpixel=dstbits;
for (x=0; x<width; x++) {
DWORD srcval;
srcval=*srcpixel++;
FLIP_DWORD(&srcval);
dstpixel[0]=(srcval >> rRightShift); /* r */
dstpixel[1]=(srcval >> gRightShift); /* g */
dstpixel[2]=(srcval >> bRightShift); /* b */
dstpixel+=3;
}
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srcbits = (const char*)srcbits + srclinebytes;
dstbits = (char*)dstbits + dstlinebytes;
}
}
const dib_conversions dib_src_byteswap = {
convert_5x5_asis_src_byteswap,
convert_555_reverse_src_byteswap,
convert_555_to_565_asis_src_byteswap,
convert_555_to_565_reverse_src_byteswap,
convert_555_to_888_asis_src_byteswap,
convert_555_to_888_reverse_src_byteswap,
convert_555_to_0888_asis_src_byteswap,
convert_555_to_0888_reverse_src_byteswap,
convert_5x5_to_any0888_src_byteswap,
convert_565_reverse_src_byteswap,
convert_565_to_555_asis_src_byteswap,
convert_565_to_555_reverse_src_byteswap,
convert_565_to_888_asis_src_byteswap,
convert_565_to_888_reverse_src_byteswap,
convert_565_to_0888_asis_src_byteswap,
convert_565_to_0888_reverse_src_byteswap,
convert_888_asis_src_byteswap,
convert_888_reverse_src_byteswap,
convert_888_to_555_asis_src_byteswap,
convert_888_to_555_reverse_src_byteswap,
convert_888_to_565_asis_src_byteswap,
convert_888_to_565_reverse_src_byteswap,
convert_888_to_0888_asis_src_byteswap,
convert_888_to_0888_reverse_src_byteswap,
convert_rgb888_to_any0888_src_byteswap,
convert_bgr888_to_any0888_src_byteswap,
convert_0888_asis_src_byteswap,
convert_0888_reverse_src_byteswap,
convert_0888_any_src_byteswap,
convert_0888_to_555_asis_src_byteswap,
convert_0888_to_555_reverse_src_byteswap,
convert_0888_to_565_asis_src_byteswap,
convert_0888_to_565_reverse_src_byteswap,
convert_any0888_to_5x5_src_byteswap,
convert_0888_to_888_asis_src_byteswap,
convert_0888_to_888_reverse_src_byteswap,
convert_any0888_to_rgb888_src_byteswap,
convert_any0888_to_bgr888_src_byteswap
};