private short WriteBasePixels(IntPtr port, ref VRect writeRect, PixelMemoryDesc srcDesc)
{
#if DEBUG
DebugUtils.Ping(DebugFlags.ChannelPorts, string.Format("port: {0}, rect: {1}", port.ToString(), writeRect.ToString()));
#endif
return(PSError.memFullErr);
}
private unsafe short WriteBasePixels(IntPtr port, VRect *writeRect, PixelMemoryDesc srcDesc)
{
#if DEBUG
DebugUtils.Ping(DebugFlags.ChannelPorts, string.Format("port: {0}, rect: {1}", port.ToString(), DebugUtils.PointerToString(writeRect)));
#endif
if (writeRect == null)
{
return(PSError.paramErr);
}
return(PSError.memFullErr);
}
private static unsafe void FillSelectionMask(PixelMemoryDesc destiniation, SurfaceGray8 source, VRect srcRect)
{
byte *dstPtr = (byte *)destiniation.data.ToPointer();
int stride = destiniation.rowBits / 8;
int bpp = destiniation.colBits / 8;
int offset = destiniation.bitOffset / 8;
for (int y = srcRect.top; y < srcRect.bottom; y++)
{
byte *src = source.GetPointAddressUnchecked(srcRect.left, y);
byte *dst = dstPtr + (y * stride) + offset;
for (int x = srcRect.left; x < srcRect.right; x++)
{
*dst = *src;
src++;
dst += bpp;
}
}
}
private static unsafe void FillChannelData(int channel, PixelMemoryDesc destiniation, SurfaceBase source, VRect srcRect, ImageModes mode)
{
byte *dstPtr = (byte *)destiniation.data.ToPointer();
int stride = destiniation.rowBits / 8;
int bpp = destiniation.colBits / 8;
int offset = destiniation.bitOffset / 8;
switch (mode)
{
case ImageModes.GrayScale:
for (int y = srcRect.top; y < srcRect.bottom; y++)
{
byte *src = source.GetPointAddressUnchecked(srcRect.left, y);
byte *dst = dstPtr + (y * stride) + offset;
for (int x = srcRect.left; x < srcRect.right; x++)
{
*dst = *src;
src++;
dst += bpp;
}
}
break;
case ImageModes.RGB:
for (int y = srcRect.top; y < srcRect.bottom; y++)
{
byte *src = source.GetPointAddressUnchecked(srcRect.left, y);
byte *dst = dstPtr + (y * stride) + offset;
for (int x = srcRect.left; x < srcRect.right; x++)
{
switch (channel)
{
case PSConstants.ChannelPorts.Red:
*dst = src[2];
break;
case PSConstants.ChannelPorts.Green:
*dst = src[1];
break;
case PSConstants.ChannelPorts.Blue:
*dst = src[0];
break;
case PSConstants.ChannelPorts.Alpha:
*dst = src[3];
break;
}
src += 4;
dst += bpp;
}
}
break;
case ImageModes.Gray16:
for (int y = srcRect.top; y < srcRect.bottom; y++)
{
ushort *src = (ushort *)source.GetPointAddressUnchecked(srcRect.left, y);
ushort *dst = (ushort *)(dstPtr + (y * stride) + offset);
for (int x = srcRect.left; x < srcRect.right; x++)
{
*dst = *src;
src++;
dst += bpp;
}
}
break;
case ImageModes.RGB48:
for (int y = srcRect.top; y < srcRect.bottom; y++)
{
ushort *src = (ushort *)source.GetPointAddressUnchecked(srcRect.left, y);
ushort *dst = (ushort *)(dstPtr + (y * stride) + offset);
for (int x = srcRect.left; x < srcRect.right; x++)
{
switch (channel)
{
case PSConstants.ChannelPorts.Red:
*dst = src[2];
break;
case PSConstants.ChannelPorts.Green:
*dst = src[1];
break;
case PSConstants.ChannelPorts.Blue:
*dst = src[0];
break;
case PSConstants.ChannelPorts.Alpha:
*dst = src[3];
break;
}
src += 4;
dst += bpp;
}
}
break;
}
}
private unsafe short ReadPixelsProc(IntPtr port, ref PSScaling scaling, ref VRect writeRect, ref PixelMemoryDesc destination, ref VRect wroteRect)
{
#if DEBUG
DebugUtils.Ping(DebugFlags.ChannelPorts, string.Format("port: {0}, rect: {1}", port.ToString(), writeRect.ToString()));
#endif
if (destination.depth != 8 && destination.depth != 16)
{
return(PSError.errUnsupportedDepth);
}
// The offsets must be aligned to a System.Byte.
if ((destination.bitOffset % 8) != 0)
{
return(PSError.errUnsupportedBitOffset);
}
if ((destination.colBits % 8) != 0)
{
return(PSError.errUnsupportedColBits);
}
if ((destination.rowBits % 8) != 0)
{
return(PSError.errUnsupportedRowBits);
}
int channel = port.ToInt32();
if (channel < PSConstants.ChannelPorts.Gray || channel > PSConstants.ChannelPorts.SelectionMask)
{
return(PSError.errUnknownPort);
}
VRect srcRect = scaling.sourceRect;
VRect dstRect = scaling.destinationRect;
int srcWidth = srcRect.right - srcRect.left;
int srcHeight = srcRect.bottom - srcRect.top;
int dstWidth = dstRect.right - dstRect.left;
int dstHeight = dstRect.bottom - dstRect.top;
bool isSelection = channel == PSConstants.ChannelPorts.SelectionMask;
SurfaceBase source = filterImageProvider.Source;
if ((source.BitsPerChannel == 8 || isSelection) && destination.depth == 16)
{
return(PSError.errUnsupportedDepthConversion); // converting 8-bit image data to 16-bit is not supported.
}
if (isSelection)
{
if (srcWidth == dstWidth && srcHeight == dstHeight)
{
FillSelectionMask(destination, filterImageProvider.Mask, srcRect);
}
else if (dstWidth < srcWidth || dstHeight < srcHeight) // scale down
{
if ((scaledSelectionMask == null) || scaledSelectionMask.Width != dstWidth || scaledSelectionMask.Height != dstHeight)
{
if (scaledSelectionMask != null)
{
scaledSelectionMask.Dispose();
scaledSelectionMask = null;
}
try
{
scaledSelectionMask = new SurfaceGray8(dstWidth, dstHeight);
scaledSelectionMask.SuperSampleFitSurface(filterImageProvider.Mask);
}
catch (OutOfMemoryException)
{
return(PSError.memFullErr);
}
}
FillSelectionMask(destination, scaledSelectionMask, dstRect);
}
else if (dstWidth > srcWidth || dstHeight > srcHeight) // scale up
{
if ((scaledSelectionMask == null) || scaledSelectionMask.Width != dstWidth || scaledSelectionMask.Height != dstHeight)
{
if (scaledSelectionMask != null)
{
scaledSelectionMask.Dispose();
scaledSelectionMask = null;
}
try
{
scaledSelectionMask = new SurfaceGray8(dstWidth, dstHeight);
scaledSelectionMask.BicubicFitSurface(filterImageProvider.Mask);
}
catch (OutOfMemoryException)
{
return(PSError.memFullErr);
}
}
FillSelectionMask(destination, scaledSelectionMask, dstRect);
}
}
else
{
ImageModes mode = imageMode;
if (source.BitsPerChannel == 16 && destination.depth == 8)
{
if (ditheredChannelSurface == null)
{
short err = CreateDitheredChannelPortSurface(source);
if (err != PSError.noErr)
{
return(err);
}
}
mode = ditheredChannelImageMode;
}
if (srcWidth == dstWidth && srcHeight == dstHeight)
{
FillChannelData(channel, destination, ditheredChannelSurface ?? source, srcRect, mode);
}
else if (dstWidth < srcWidth || dstHeight < srcHeight) // scale down
{
if ((scaledChannelSurface == null) || scaledChannelSurface.Width != dstWidth || scaledChannelSurface.Height != dstHeight)
{
if (scaledChannelSurface != null)
{
scaledChannelSurface.Dispose();
scaledChannelSurface = null;
}
try
{
scaledChannelSurface = SurfaceFactory.CreateFromImageMode(dstWidth, dstHeight, mode);
scaledChannelSurface.SuperSampleFitSurface(ditheredChannelSurface ?? source);
}
catch (OutOfMemoryException)
{
return(PSError.memFullErr);
}
#if DEBUG
using (System.Drawing.Bitmap bmp = scaledChannelSurface.ToGdipBitmap())
{
}
#endif
}
FillChannelData(channel, destination, scaledChannelSurface, dstRect, mode);
}
else if (dstWidth > srcWidth || dstHeight > srcHeight) // scale up
{
if ((scaledChannelSurface == null) || scaledChannelSurface.Width != dstWidth || scaledChannelSurface.Height != dstHeight)
{
if (scaledChannelSurface != null)
{
scaledChannelSurface.Dispose();
scaledChannelSurface = null;
}
try
{
scaledChannelSurface = SurfaceFactory.CreateFromImageMode(dstWidth, dstHeight, mode);
scaledChannelSurface.BicubicFitSurface(ditheredChannelSurface ?? source);
}
catch (OutOfMemoryException)
{
return(PSError.memFullErr);
}
}
FillChannelData(channel, destination, scaledChannelSurface, dstRect, mode);
}
}
wroteRect = dstRect;
return(PSError.noErr);
}