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/*
flips RGB images
Copyright (C) 2000 Martin Vogt
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation.
For more information look at the file COPYRIGHT in this package
*/
#include "ditherRGB_flipped.h"
#include <iostream>
using namespace std;
DitherRGB_flipped::DitherRGB_flipped() {
flipSpace=NULL;
flipSize=0;
}
DitherRGB_flipped::~DitherRGB_flipped() {
if (flipSpace != NULL) {
delete flipSpace;
}
}
void DitherRGB_flipped::flipRGBImage(unsigned char* dest,unsigned char* src,
int depth,int width,int height,int ) {
int byteDepth;
switch(depth) {
case 8:
byteDepth=1;
break;
case 15:
case 16:
byteDepth=2;
break;
case 24:
case 32:
byteDepth=4;
break;
default:
cout << "unknown byteDepth:"<<depth
<< " in DitherRGB_flipped::flipRGBImage"<<endl;
return;
}
int spaceNeeded=width*height*byteDepth;
if (spaceNeeded > flipSize) {
if (flipSpace != NULL) {
delete flipSpace;
}
cout << "flipSpace:"<<spaceNeeded<<endl;
flipSpace=new unsigned char[spaceNeeded+64];
flipSize=spaceNeeded;
}
int i;
int lineSize=width*byteDepth;
unsigned char* end=dest+lineSize*(height-1);
for (i=0;i<height;i++) {
memcpy(end,src,lineSize);
src+=lineSize;
end-=lineSize;
}
}
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