void ofPixels_<PixelType>::mirrorTo(ofPixels_<PixelType> & dst, bool vertically, bool horizontal) const{
if(&dst == this){
dst.mirror(vertically,horizontal);
return;
}
if (!vertically && !horizontal){
dst = *this;
return;
}
int bytesPerPixel = getNumChannels();
dst.allocate(width, height, getPixelFormat());
if(vertically && !horizontal){
auto dstLines = dst.getLines();
auto lineSrc = getConstLines().begin();
auto line = --dstLines.end();
auto stride = line.getStride();
for(; line>=dstLines.begin(); --line, ++lineSrc){
memcpy(line.begin(), lineSrc.begin(), stride);
}
}else if (!vertically && horizontal){
int wToDo = width/2;
int hToDo = height;
for (int i = 0; i < wToDo; i++){
for (int j = 0; j < hToDo; j++){
int pixelb = i;
int pixela = j*width + i;
for (int k = 0; k < bytesPerPixel; k++){
dst[pixela*bytesPerPixel + k] = pixels[pixelb*bytesPerPixel + k];
dst[pixelb*bytesPerPixel + k] = pixels[pixela*bytesPerPixel + k];
}
}
}
} else {
// I couldn't think of a good way to do this in place. I'm sure there is.
mirrorTo(dst,true, false);
dst.mirror(false, true);
}
}
void ofPixels_<PixelType>::mirrorTo(ofPixels_<PixelType> & dst, bool vertically, bool horizontal) const{
if(&dst == this){
dst.mirror(vertically,horizontal);
return;
}
if (!vertically && !horizontal){
dst = *this;
return;
}
int bytesPerPixel = getNumChannels();
if (! (vertically && horizontal)){
int wToDo = horizontal ? width/2 : width;
int hToDo = vertically ? height/2 : height;
for (int i = 0; i < wToDo; i++){
for (int j = 0; j < hToDo; j++){
int pixelb = (vertically ? (height - j - 1) : j) * width + (horizontal ? (width - i - 1) : i);
int pixela = j*width + i;
for (int k = 0; k < bytesPerPixel; k++){
dst[pixela*bytesPerPixel + k] = pixels[pixelb*bytesPerPixel + k];
dst[pixelb*bytesPerPixel + k] = pixels[pixela*bytesPerPixel + k];
}
}
}
} else {
// I couldn't think of a good way to do this in place. I'm sure there is.
mirrorTo(dst,true, false);
dst.mirror(false, true);
}
}
