private static void Copy8BitDataToImage(ImageBuffer destImage, Bitmap m_WidowsBitmap)
{
destImage.Allocate(m_WidowsBitmap.Width, m_WidowsBitmap.Height, m_WidowsBitmap.Width * 4, 32);
BitmapData bitmapData = m_WidowsBitmap.LockBits(new Rectangle(0, 0, m_WidowsBitmap.Width, m_WidowsBitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, m_WidowsBitmap.PixelFormat);
int sourceIndex = 0;
int destIndex = 0;
unsafe
{
int offset;
byte[] destBuffer = destImage.GetBuffer(out offset);
byte * pSourceBuffer = (byte *)bitmapData.Scan0;
Color[] colors = m_WidowsBitmap.Palette.Entries;
for (int y = 0; y < destImage.Height; y++)
{
sourceIndex = y * bitmapData.Stride;
destIndex = destImage.GetBufferOffsetY(destImage.Height - 1 - y);
for (int x = 0; x < destImage.Width; x++)
{
Color color = colors[pSourceBuffer[sourceIndex++]];
destBuffer[destIndex++] = color.B;
destBuffer[destIndex++] = color.G;
destBuffer[destIndex++] = color.R;
destBuffer[destIndex++] = color.A;
}
}
}
m_WidowsBitmap.UnlockBits(bitmapData);
}
public static bool ConvertImageToImageBuffer(ImageBuffer destImage, int width, int height, Rgba32[] pixelArray)
{
if (pixelArray != null)
{
destImage.Allocate(width, height, width * 4, 32);
if (destImage.GetRecieveBlender() == null)
{
destImage.SetRecieveBlender(new BlenderBGRA());
}
int sourceIndex = 0;
byte[] destBuffer = destImage.GetBuffer(out _);
for (int y = 0; y < destImage.Height; y++)
{
int destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
for (int x = 0; x < destImage.Width; x++)
{
destBuffer[destIndex++] = pixelArray[sourceIndex].B;
destBuffer[destIndex++] = pixelArray[sourceIndex].G;
destBuffer[destIndex++] = pixelArray[sourceIndex].R;
destBuffer[destIndex++] = pixelArray[sourceIndex].A;
sourceIndex++;
}
}
return(true);
}
return(false);
}
public void LoadImage(string path, ImageBuffer destImage)
{
ImageBuffer cachedImage = null;
if (!cachedImages.TryGetValue(path, out cachedImage))
{
using (var imageStream = OpenSteam(path))
{
var bitmap = new Bitmap(imageStream);
cachedImage = new ImageBuffer();
ImageIOWindowsPlugin.ConvertBitmapToImage(cachedImage, bitmap);
}
if (cachedImage.Width < 200 && cachedImage.Height < 200)
{
// only cache relatively small images
cachedImages.Add(path, cachedImage);
}
}
destImage.Allocate(cachedImage.Width, cachedImage.Height, cachedImage.StrideInBytesAbs(), cachedImage.BitDepth);
destImage.SetRecieveBlender(cachedImage.GetRecieveBlender());
destImage.CopyFrom(cachedImage);
}
private static bool ConvertBitmapToImage(ImageBuffer destImage, Bitmap m_WidowsBitmap)
{
if (m_WidowsBitmap != null)
{
switch (m_WidowsBitmap.PixelFormat)
{
case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
{
destImage.Allocate(m_WidowsBitmap.Width, m_WidowsBitmap.Height, m_WidowsBitmap.Width * 4, 32);
if (destImage.GetRecieveBlender() == null)
{
destImage.SetRecieveBlender(new BlenderBGRA());
}
BitmapData bitmapData = m_WidowsBitmap.LockBits(new Rectangle(0, 0, m_WidowsBitmap.Width, m_WidowsBitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, m_WidowsBitmap.PixelFormat);
int sourceIndex = 0;
int destIndex = 0;
unsafe
{
int offset;
byte[] destBuffer = destImage.GetBuffer(out offset);
byte* pSourceBuffer = (byte*)bitmapData.Scan0;
for (int y = 0; y < destImage.Height; y++)
{
destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
for (int x = 0; x < destImage.Width; x++)
{
#if true
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
#else
RGBA_Bytes notPreMultiplied = new RGBA_Bytes(pSourceBuffer[sourceIndex + 0], pSourceBuffer[sourceIndex + 1], pSourceBuffer[sourceIndex + 2], pSourceBuffer[sourceIndex + 3]);
sourceIndex += 4;
RGBA_Bytes preMultiplied = notPreMultiplied.GetAsRGBA_Floats().premultiply().GetAsRGBA_Bytes();
destBuffer[destIndex++] = preMultiplied.blue;
destBuffer[destIndex++] = preMultiplied.green;
destBuffer[destIndex++] = preMultiplied.red;
destBuffer[destIndex++] = preMultiplied.alpha;
#endif
}
}
}
m_WidowsBitmap.UnlockBits(bitmapData);
return true;
}
case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
{
destImage.Allocate(m_WidowsBitmap.Width, m_WidowsBitmap.Height, m_WidowsBitmap.Width * 4, 32);
BitmapData bitmapData = m_WidowsBitmap.LockBits(new Rectangle(0, 0, m_WidowsBitmap.Width, m_WidowsBitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, m_WidowsBitmap.PixelFormat);
int sourceIndex = 0;
int destIndex = 0;
unsafe
{
int offset;
byte[] destBuffer = destImage.GetBuffer(out offset);
byte* pSourceBuffer = (byte*)bitmapData.Scan0;
for (int y = 0; y < destImage.Height; y++)
{
sourceIndex = y * bitmapData.Stride;
destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
for (int x = 0; x < destImage.Width; x++)
{
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = 255;
}
}
}
m_WidowsBitmap.UnlockBits(bitmapData);
return true;
}
case System.Drawing.Imaging.PixelFormat.Format8bppIndexed:
{
Copy8BitDataToImage(destImage, m_WidowsBitmap);
return true;
}
default:
throw new System.NotImplementedException();
}
}
return false;
}
private static void Copy8BitDataToImage(ImageBuffer destImage, Bitmap m_WidowsBitmap)
{
destImage.Allocate(m_WidowsBitmap.Width, m_WidowsBitmap.Height, m_WidowsBitmap.Width * 4, 32);
BitmapData bitmapData = m_WidowsBitmap.LockBits(new Rectangle(0, 0, m_WidowsBitmap.Width, m_WidowsBitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, m_WidowsBitmap.PixelFormat);
int sourceIndex = 0;
int destIndex = 0;
unsafe
{
int offset;
byte[] destBuffer = destImage.GetBuffer(out offset);
byte* pSourceBuffer = (byte*)bitmapData.Scan0;
Color[] colors = m_WidowsBitmap.Palette.Entries;
for (int y = 0; y < destImage.Height; y++)
{
sourceIndex = y * bitmapData.Stride;
destIndex = destImage.GetBufferOffsetY(destImage.Height - 1 - y);
for (int x = 0; x < destImage.Width; x++)
{
Color color = colors[pSourceBuffer[sourceIndex++]];
destBuffer[destIndex++] = color.B;
destBuffer[destIndex++] = color.G;
destBuffer[destIndex++] = color.R;
destBuffer[destIndex++] = color.A;
}
}
}
m_WidowsBitmap.UnlockBits(bitmapData);
}
private static int LowLevelReadTGABitsFromBuffer(ImageBuffer imageToReadTo, byte[] wholeFileBuffer, int DestBitDepth)
{
STargaHeader TargaHeader = new STargaHeader();
int FileReadOffset;
if (!ReadTGAInfo(wholeFileBuffer, out TargaHeader))
{
return(0);
}
// if the frame we are loading is different then the one we have allocated
// or we don't have any bits allocated
if ((imageToReadTo.Width * imageToReadTo.Height) != (TargaHeader.Width * TargaHeader.Height))
{
imageToReadTo.Allocate(TargaHeader.Width, TargaHeader.Height, TargaHeader.Width * DestBitDepth / 8, DestBitDepth);
}
// work out the line width
switch (imageToReadTo.BitDepth)
{
case 24:
TGABytesPerLine = imageToReadTo.Width * 3;
if (imageToReadTo.GetRecieveBlender() == null)
{
imageToReadTo.SetRecieveBlender(new BlenderBGR());
}
break;
case 32:
TGABytesPerLine = imageToReadTo.Width * 4;
if (imageToReadTo.GetRecieveBlender() == null)
{
imageToReadTo.SetRecieveBlender(new BlenderBGRA());
}
break;
default:
throw new System.Exception("Bad bit depth.");
}
if (TGABytesPerLine > 0)
{
byte[] BufferToDecompressTo = null;
FileReadOffset = TargaHeaderSize + TargaHeader.PostHeaderSkip;
if (TargaHeader.ImageType == 10) // 10 is RLE compressed
{
BufferToDecompressTo = new byte[TGABytesPerLine * 2];
}
// read all the lines *
for (int i = 0; i < imageToReadTo.Height; i++)
{
byte[] BufferToCopyFrom;
int CopyOffset = 0;
int CurReadLine;
// bit 5 tells us if the image is stored top to bottom or bottom to top
if ((TargaHeader.Descriptor & 0x20) != 0)
{
// bottom to top
CurReadLine = imageToReadTo.Height - i - 1;
}
else
{
// top to bottom
CurReadLine = i;
}
if (TargaHeader.ImageType == 10) // 10 is RLE compressed
{
FileReadOffset = Decompress(BufferToDecompressTo, wholeFileBuffer, FileReadOffset, imageToReadTo.Width, TargaHeader.BPP, CurReadLine);
BufferToCopyFrom = BufferToDecompressTo;
}
else
{
BufferToCopyFrom = wholeFileBuffer;
CopyOffset = FileReadOffset;
}
int bufferOffset;
byte[] imageBuffer = imageToReadTo.GetBuffer(out bufferOffset);
switch (imageToReadTo.BitDepth)
{
case 8:
switch (TargaHeader.BPP)
{
case 24:
Do24To8Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
case 32:
Do32To8Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
}
break;
case 24:
switch (TargaHeader.BPP)
{
case 24:
Do24To24Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
case 32:
Do32To24Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
}
break;
case 32:
switch (TargaHeader.BPP)
{
case 24:
Do24To32Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
case 32:
Do32To32Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
}
break;
default:
throw new System.Exception("Bad bit depth");
}
if (TargaHeader.ImageType != 10) // 10 is RLE compressed
{
FileReadOffset += TGABytesPerLine;
}
}
}
return(TargaHeader.Width);
}
private static unsafe int LowLevelReadTGABitsFromBuffer(ImageBuffer imageToReadTo, byte[] wholeFileBuffer, int DestBitDepth)
{
STargaHeader TargaHeader = new STargaHeader();
int FileReadOffset;
if (!ReadTGAInfo(wholeFileBuffer, out TargaHeader))
{
return 0;
}
// if the frame we are loading is different then the one we have allocated
// or we don't have any bits allocated
if ((imageToReadTo.Width * imageToReadTo.Height) != (TargaHeader.Width * TargaHeader.Height))
{
imageToReadTo.Allocate(TargaHeader.Width, TargaHeader.Height, TargaHeader.Width * DestBitDepth / 8, DestBitDepth);
}
// work out the line width
switch (imageToReadTo.BitDepth)
{
case 24:
TGABytesPerLine = imageToReadTo.Width * 3;
if (imageToReadTo.GetRecieveBlender() == null)
{
imageToReadTo.SetRecieveBlender(new BlenderBGR());
}
break;
case 32:
TGABytesPerLine = imageToReadTo.Width * 4;
if (imageToReadTo.GetRecieveBlender() == null)
{
imageToReadTo.SetRecieveBlender(new BlenderBGRA());
}
break;
default:
throw new System.Exception("Bad bit depth.");
}
if (TGABytesPerLine > 0)
{
byte[] BufferToDecompressTo = null;
FileReadOffset = TargaHeaderSize + TargaHeader.PostHeaderSkip;
if (TargaHeader.ImageType == 10) // 10 is RLE compressed
{
BufferToDecompressTo = new byte[TGABytesPerLine * 2];
}
// read all the lines *
for (int i = 0; i < imageToReadTo.Height; i++)
{
byte[] BufferToCopyFrom;
int CopyOffset = 0;
int CurReadLine;
// bit 5 tells us if the image is stored top to bottom or bottom to top
if ((TargaHeader.Descriptor & 0x20) != 0)
{
// bottom to top
CurReadLine = imageToReadTo.Height - i - 1;
}
else
{
// top to bottom
CurReadLine = i;
}
if (TargaHeader.ImageType == 10) // 10 is RLE compressed
{
FileReadOffset = Decompress(BufferToDecompressTo, wholeFileBuffer, FileReadOffset, imageToReadTo.Width, TargaHeader.BPP, CurReadLine);
BufferToCopyFrom = BufferToDecompressTo;
}
else
{
BufferToCopyFrom = wholeFileBuffer;
CopyOffset = FileReadOffset;
}
int bufferOffset;
byte[] imageBuffer = imageToReadTo.GetBuffer(out bufferOffset);
switch (imageToReadTo.BitDepth)
{
case 8:
switch (TargaHeader.BPP)
{
case 24:
Do24To8Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
case 32:
Do32To8Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
}
break;
case 24:
switch (TargaHeader.BPP)
{
case 24:
Do24To24Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
case 32:
Do32To24Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
}
break;
case 32:
switch (TargaHeader.BPP)
{
case 24:
Do24To32Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
case 32:
Do32To32Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
break;
}
break;
default:
throw new System.Exception("Bad bit depth");
}
if (TargaHeader.ImageType != 10) // 10 is RLE compressed
{
FileReadOffset += TGABytesPerLine;
}
}
}
return TargaHeader.Width;
}
internal static bool ConvertBitmapToImage(ImageBuffer destImage, Bitmap bitmap)
{
if (bitmap != null)
{
switch (bitmap.PixelFormat)
{
case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
{
destImage.Allocate(bitmap.Width, bitmap.Height, bitmap.Width * 4, 32);
if (destImage.GetRecieveBlender() == null)
{
destImage.SetRecieveBlender(new BlenderBGRA());
}
BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, bitmap.PixelFormat);
int sourceIndex = 0;
int destIndex = 0;
unsafe
{
int offset;
byte[] destBuffer = destImage.GetBuffer(out offset);
byte * pSourceBuffer = (byte *)bitmapData.Scan0;
for (int y = 0; y < destImage.Height; y++)
{
destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
for (int x = 0; x < destImage.Width; x++)
{
#if true
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
#else
Color notPreMultiplied = new Color(pSourceBuffer[sourceIndex + 0], pSourceBuffer[sourceIndex + 1], pSourceBuffer[sourceIndex + 2], pSourceBuffer[sourceIndex + 3]);
sourceIndex += 4;
Color preMultiplied = notPreMultiplied.ToColorF().premultiply().ToColor();
destBuffer[destIndex++] = preMultiplied.blue;
destBuffer[destIndex++] = preMultiplied.green;
destBuffer[destIndex++] = preMultiplied.red;
destBuffer[destIndex++] = preMultiplied.alpha;
#endif
}
}
}
bitmap.UnlockBits(bitmapData);
return(true);
}
case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
{
destImage.Allocate(bitmap.Width, bitmap.Height, bitmap.Width * 4, 32);
if (destImage.GetRecieveBlender() == null)
{
destImage.SetRecieveBlender(new BlenderBGRA());
}
BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, bitmap.PixelFormat);
int sourceIndex = 0;
int destIndex = 0;
unsafe
{
int offset;
byte[] destBuffer = destImage.GetBuffer(out offset);
byte * pSourceBuffer = (byte *)bitmapData.Scan0;
for (int y = 0; y < destImage.Height; y++)
{
sourceIndex = y * bitmapData.Stride;
destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
for (int x = 0; x < destImage.Width; x++)
{
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = 255;
}
}
}
bitmap.UnlockBits(bitmapData);
return(true);
}
case System.Drawing.Imaging.PixelFormat.Format8bppIndexed:
{
Copy8BitDataToImage(destImage, bitmap);
return(true);
}
default:
// let this code fall through and return false
break;
}
}
return(false);
}
internal static bool ConvertBitmapToImage(ImageBuffer destImage, Bitmap m_WidowsBitmap)
{
if (m_WidowsBitmap != null)
{
switch (m_WidowsBitmap.PixelFormat)
{
case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
{
destImage.Allocate(m_WidowsBitmap.Width, m_WidowsBitmap.Height, m_WidowsBitmap.Width * 4, 32);
if (destImage.GetRecieveBlender() == null)
{
destImage.SetRecieveBlender(new BlenderBGRA());
}
BitmapData bitmapData = m_WidowsBitmap.LockBits(new Rectangle(0, 0, m_WidowsBitmap.Width, m_WidowsBitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, m_WidowsBitmap.PixelFormat);
int sourceIndex = 0;
int destIndex = 0;
unsafe
{
int offset;
byte[] destBuffer = destImage.GetBuffer(out offset);
byte * pSourceBuffer = (byte *)bitmapData.Scan0;
for (int y = 0; y < destImage.Height; y++)
{
destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
for (int x = 0; x < destImage.Width; x++)
{
#if true
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
#else
RGBA_Bytes notPreMultiplied = new RGBA_Bytes(pSourceBuffer[sourceIndex + 0], pSourceBuffer[sourceIndex + 1], pSourceBuffer[sourceIndex + 2], pSourceBuffer[sourceIndex + 3]);
sourceIndex += 4;
RGBA_Bytes preMultiplied = notPreMultiplied.GetAsRGBA_Floats().premultiply().GetAsRGBA_Bytes();
destBuffer[destIndex++] = preMultiplied.blue;
destBuffer[destIndex++] = preMultiplied.green;
destBuffer[destIndex++] = preMultiplied.red;
destBuffer[destIndex++] = preMultiplied.alpha;
#endif
}
}
}
m_WidowsBitmap.UnlockBits(bitmapData);
return(true);
}
case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
{
destImage.Allocate(m_WidowsBitmap.Width, m_WidowsBitmap.Height, m_WidowsBitmap.Width * 4, 32);
BitmapData bitmapData = m_WidowsBitmap.LockBits(new Rectangle(0, 0, m_WidowsBitmap.Width, m_WidowsBitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, m_WidowsBitmap.PixelFormat);
int sourceIndex = 0;
int destIndex = 0;
unsafe
{
int offset;
byte[] destBuffer = destImage.GetBuffer(out offset);
byte * pSourceBuffer = (byte *)bitmapData.Scan0;
for (int y = 0; y < destImage.Height; y++)
{
sourceIndex = y * bitmapData.Stride;
destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
for (int x = 0; x < destImage.Width; x++)
{
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
destBuffer[destIndex++] = 255;
}
}
}
m_WidowsBitmap.UnlockBits(bitmapData);
return(true);
}
case System.Drawing.Imaging.PixelFormat.Format8bppIndexed:
{
Copy8BitDataToImage(destImage, m_WidowsBitmap);
return(true);
}
default:
throw new System.NotImplementedException();
}
}
return(false);
}