PixelInfo[] TranslatePixelInfo(PixelInfo[] srcPixelInfos, Matrix drawMatrix)
{
int x = (int)(drawMatrix.M41 + 0.5);
int y = (int)(drawMatrix.M42 + 0.5);
PixelInfo.xPixelCoordAtComplexOrigin += x;
PixelInfo.yPixelCoordAtComplexOrigin += y;
PixelInfo[] dstPixelInfos = new PixelInfo[srcPixelInfos.Length];
for (int dstY = 0; dstY < PixelInfo.pixelHeight; dstY++)
{
int srcY = dstY - y;
int srcRow = srcY * PixelInfo.pixelWidth;
int dstRow = dstY * PixelInfo.pixelWidth;
for (int dstX = 0; dstX < PixelInfo.pixelWidth; dstX++)
{
int srcX = dstX - x;
int dstIndex = dstRow + dstX;
if (srcX >= 0 && srcX < PixelInfo.pixelWidth &&
srcY >= 0 && srcY < PixelInfo.pixelHeight)
{
int srcIndex = srcRow + srcX;
dstPixelInfos[dstIndex] = pixelInfos[srcIndex];
}
else
{
dstPixelInfos[dstIndex] = new PixelInfo(dstIndex, null);
}
}
}
return dstPixelInfos;
}
void InitializePixelInfo(uint[] pixels)
{
for (int index = 0; index < pixelInfos.Length; index++)
{
pixelInfos[index] = new PixelInfo(index, pixels);
}
PixelInfo.hasNewColors = true;
PixelInfo.firstNewIndex = 0;
PixelInfo.lastNewIndex = pixelInfos.Length - 1;
}