/* ---------------------------------------------------------------------------------------------------------------------------------- */
BmpFile(RleFile rle, byte[] imageBuffer)
{
ReservedField = 0;
ImageWidth = rle.ImageWidth;
ImageHeight = rle.ImageHeight;
Planes = 1;
BitsPerPixel = (short)(rle.BytesPerPixel * 8);
Compression = 0;
ImageSize = imageBuffer.Length;
PixelsPerMeterX = 0;
PixelsPerMeterY = 0;
ColorsInColorTable = rle.ColorsInColorTable;
ImportantColorCount = rle.ColorsInColorTable;
ColorTable = rle.ColorTable;
ImageBuffer = imageBuffer;
PixelArrayOffset = ColorTable.Length + HEADER_SIZE;
FileSize = PixelArrayOffset + ImageSize;
}
// ESP + 13 :: BytesPerPixel
// ESP + 14 :: repValue / ??
// ESP + 18 :: *Buffer
// ESP + 1C :: repsBuffer size
// ESP + 7C :: repsBuffer size
// ESP + 24 :: repIndex
// ESP + 28 :: pixCounter
// ESP + 30 :: BytesPerPixel
// ESP + 38 :: *rleTable
// ESP + 2C :: *repsBuffer[repIndex]
/* ---------------------------------------------------------------------------------------------------------------------------------- */
public static BmpFile Convert(RleFile rle)
{
// BMP row size has to be a multiple of 4 Bytes, hence rounding to 4 bytes
var bmpImageWidth = rle.ImageType == 3 ? ((rle.ImageWidth + 1) / 2) * 2 : ((rle.ImageWidth + 3) / 4) * 4;
var imageSize = rle.ImageHeight * bmpImageWidth * rle.BytesPerPixel;
byte[] imageBuffer = new byte[imageSize];
bool dl = false;
int pixCounter = 0;
int repsTablePosition = 0;
for (int y = 0; y < rle.ImageHeight; y++)
{
byte[] repsBuffer = rle.GetRepsBuffer(y, repsTablePosition);
repsTablePosition += repsBuffer.Length;
pixCounter = 0;
dl = true;
for (int repIndex = 0; repIndex < repsBuffer.Length; repIndex++)
{
var repValue = repsBuffer[repIndex];
if (dl)
{
if (repValue != 0)
{
for (int x = 0; x < repValue; x++)
{
if (rle.ImageType == 7)
{
int pixIndex = (rle.ImageHeight - y - 1) * bmpImageWidth + pixCounter;
imageBuffer[pixIndex] = 0;
}
else
{
int pixIndex = (rle.ImageHeight - y - 1) * bmpImageWidth + pixCounter;
pixIndex *= rle.BytesPerPixel;
Array.Copy(rle.ColorRefBytes, 0, imageBuffer, pixIndex, rle.BytesPerPixel);
}
pixCounter++;
}
}
dl = false;
continue;
}
else
{
if (repValue != 0)
{
while (repValue > 0)
{
if (rle.ImageType == 1)
{
int pix = (rle.ImageHeight - y - 1) * bmpImageWidth + pixCounter;
imageBuffer[pix] = repsBuffer[repIndex + 1];
repIndex++;
}
else if (rle.ImageType == 3)
{
int pix = (rle.ImageHeight - y - 1) * bmpImageWidth + pixCounter;
imageBuffer[pix * 2] = repsBuffer[repIndex + 1];
imageBuffer[pix * 2 + 1] = repsBuffer[repIndex + 2];
repIndex += 2;
}
else if (rle.ImageType == 7)
{
int pix = (rle.ImageHeight - y - 1) * bmpImageWidth + pixCounter;
imageBuffer[pix] = 1;
}
pixCounter++;
repValue--;
}
}
dl = true;
}
}
}
return(BmpFile.CreateFromRle(rle, imageBuffer));
}
/* ---------------------------------------------------------------------------------------------------------------------------------- */
public static BmpFile CreateFromRle(RleFile rle, byte[] imageBuffer)
{
return(new BmpFile(rle, imageBuffer));
}