private static void SetAlphaToOpaque(Image image)
{
using (var inputStream = new MemoryStream(image.Data, false))
using (var reader = new BinaryReader(inputStream))
using (var outputStream = new MemoryStream(image.Data, true))
using (var writer = new BinaryWriter(outputStream))
{
for (int y = 0; y < image.Height; y++)
{
TextureHelper.CopyScanline(reader, image.RowPitch, writer, image.RowPitch, image.Format, ScanlineFlags.SetAlpha);
}
}
}
public static void Save(Image image, Stream stream)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
if (stream == null)
{
throw new ArgumentNullException("stream");
}
var convFlags = ConversionFlags.None;
var header = EncodeTgaHeader(image, ref convFlags);
// Write header.
stream.WriteStruct(header);
// Determine memory required for image data.
int rowPitch = (convFlags & ConversionFlags.Format888) != 0 ? image.Width * 3 : image.RowPitch;
// Write pixels.
using (var sourceStream = new MemoryStream(image.Data, false))
using (var reader = new BinaryReader(sourceStream))
#if NET45
using (var writer = new BinaryWriter(stream, Encoding.Default, true))
#else
using (var writer = new BinaryWriter(stream, Encoding.Default)) // Warning: Closes the stream!
#endif
{
for (int y = 0; y < image.Height; y++)
{
if ((convFlags & ConversionFlags.Format888) != 0)
{
Copy24BppScanline(reader, image.RowPitch, writer);
}
else if ((convFlags & ConversionFlags.Swizzle) != 0)
{
TextureHelper.SwizzleScanline(reader, image.RowPitch, writer, rowPitch, image.Format, ScanlineFlags.None);
}
else
{
TextureHelper.CopyScanline(reader, image.RowPitch, writer, rowPitch, image.Format, ScanlineFlags.None);
}
}
}
}