private unsafe IntPtr CreateReadChannelDesc(int channel, string name, int depth, VRect bounds)
{
IntPtr addressPtr = Memory.Allocate(Marshal.SizeOf(typeof(ReadChannelDesc)), true);
IntPtr namePtr = IntPtr.Zero;
try
{
namePtr = Marshal.StringToHGlobalAnsi(name);
channelReadDescPtrs.Add(new ChannelDescPtrs(addressPtr, namePtr));
}
catch (Exception)
{
Memory.Free(addressPtr);
if (namePtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(namePtr);
namePtr = IntPtr.Zero;
}
throw;
}
ReadChannelDesc *desc = (ReadChannelDesc *)addressPtr.ToPointer();
desc->minVersion = PSConstants.kCurrentMinVersReadChannelDesc;
desc->maxVersion = PSConstants.kCurrentMaxVersReadChannelDesc;
desc->depth = depth;
desc->bounds = bounds;
desc->target = (channel < PSConstants.ChannelPorts.Alpha);
desc->shown = (channel < PSConstants.ChannelPorts.SelectionMask);
desc->tileOrigin.h = 0;
desc->tileOrigin.v = 0;
desc->tileSize.h = bounds.right - bounds.left;
desc->tileSize.v = bounds.bottom - bounds.top;
desc->port = new IntPtr(channel);
switch (channel)
{
case PSConstants.ChannelPorts.Gray:
desc->channelType = ChannelTypes.Black;
break;
case PSConstants.ChannelPorts.Red:
desc->channelType = ChannelTypes.Red;
break;
case PSConstants.ChannelPorts.Green:
desc->channelType = ChannelTypes.Green;
break;
case PSConstants.ChannelPorts.Blue:
desc->channelType = ChannelTypes.Blue;
break;
case PSConstants.ChannelPorts.Alpha:
desc->channelType = ChannelTypes.Transparency;
break;
case PSConstants.ChannelPorts.SelectionMask:
desc->channelType = ChannelTypes.SelectionMask;
break;
}
desc->name = namePtr;
return(addressPtr);
}
public unsafe IntPtr CreateReadImageDocumentPointer(bool ignoreAlpha, bool hasSelection)
{
IntPtr readDocumentPtr = Memory.Allocate(Marshal.SizeOf(typeof(ReadImageDocumentDesc)), true);
try
{
ReadImageDocumentDesc *doc = (ReadImageDocumentDesc *)readDocumentPtr.ToPointer();
doc->minVersion = PSConstants.kCurrentMinVersReadImageDocDesc;
doc->maxVersion = PSConstants.kCurrentMaxVersReadImageDocDesc;
doc->imageMode = (int)imageMode;
switch (imageMode)
{
case ImageModes.GrayScale:
case ImageModes.RGB:
doc->depth = 8;
break;
case ImageModes.Gray16:
case ImageModes.RGB48:
doc->depth = 16;
break;
}
doc->bounds.top = 0;
doc->bounds.left = 0;
doc->bounds.right = documentWidth;
doc->bounds.bottom = documentHeight;
doc->hResolution = new Fixed16((int)(dpiX + 0.5));
doc->vResolution = new Fixed16((int)(dpiY + 0.5));
if (imageMode == ImageModes.RGB || imageMode == ImageModes.RGB48)
{
IntPtr channel = CreateReadChannelDesc(PSConstants.ChannelPorts.Red, Resources.RedChannelName, doc->depth, doc->bounds);
ReadChannelDesc *ch = (ReadChannelDesc *)channel.ToPointer();
for (int i = PSConstants.ChannelPorts.Green; i <= PSConstants.ChannelPorts.Blue; i++)
{
string name = null;
switch (i)
{
case PSConstants.ChannelPorts.Green:
name = Resources.GreenChannelName;
break;
case PSConstants.ChannelPorts.Blue:
name = Resources.BlueChannelName;
break;
}
IntPtr ptr = CreateReadChannelDesc(i, name, doc->depth, doc->bounds);
ch->next = ptr;
ch = (ReadChannelDesc *)ptr.ToPointer();
}
doc->targetCompositeChannels = doc->mergedCompositeChannels = channel;
if (!ignoreAlpha)
{
IntPtr alphaPtr = CreateReadChannelDesc(PSConstants.ChannelPorts.Alpha, Resources.AlphaChannelName, doc->depth, doc->bounds);
doc->targetTransparency = doc->mergedTransparency = alphaPtr;
}
}
else
{
IntPtr channel = CreateReadChannelDesc(PSConstants.ChannelPorts.Gray, Resources.GrayChannelName, doc->depth, doc->bounds);
doc->targetCompositeChannels = doc->mergedCompositeChannels = channel;
}
if (hasSelection)
{
IntPtr selectionPtr = CreateReadChannelDesc(PSConstants.ChannelPorts.SelectionMask, Resources.MaskChannelName, doc->depth, doc->bounds);
doc->selection = selectionPtr;
}
}
catch (Exception)
{
if (readDocumentPtr != IntPtr.Zero)
{
Memory.Free(readDocumentPtr);
readDocumentPtr = IntPtr.Zero;
}
throw;
}
return(readDocumentPtr);
}
public unsafe IntPtr CreateReadImageDocumentPointer(FilterCase filterCase, bool hasSelection)
{
IntPtr readDocumentPtr = Memory.Allocate(Marshal.SizeOf(typeof(ReadImageDocumentDesc)), true);
try
{
ReadImageDocumentDesc *doc = (ReadImageDocumentDesc *)readDocumentPtr.ToPointer();
doc->minVersion = PSConstants.kCurrentMinVersReadImageDocDesc;
doc->maxVersion = PSConstants.kCurrentMaxVersReadImageDocDesc;
doc->imageMode = (int)imageMode;
switch (imageMode)
{
case ImageModes.GrayScale:
case ImageModes.RGB:
doc->depth = 8;
break;
case ImageModes.Gray16:
case ImageModes.RGB48:
doc->depth = 16;
break;
}
doc->bounds.top = 0;
doc->bounds.left = 0;
doc->bounds.right = documentWidth;
doc->bounds.bottom = documentHeight;
doc->hResolution = new Fixed16((int)(dpiX + 0.5));
doc->vResolution = new Fixed16((int)(dpiY + 0.5));
if (imageMode == ImageModes.RGB || imageMode == ImageModes.RGB48)
{
IntPtr channel = CreateReadChannelDesc(PSConstants.ChannelPorts.Red, Resources.RedChannelName, doc->depth, doc->bounds);
ReadChannelDesc *ch = (ReadChannelDesc *)channel.ToPointer();
for (int i = PSConstants.ChannelPorts.Green; i <= PSConstants.ChannelPorts.Blue; i++)
{
string name = null;
switch (i)
{
case PSConstants.ChannelPorts.Green:
name = Resources.GreenChannelName;
break;
case PSConstants.ChannelPorts.Blue:
name = Resources.BlueChannelName;
break;
}
IntPtr ptr = CreateReadChannelDesc(i, name, doc->depth, doc->bounds);
ch->next = ptr;
ch = (ReadChannelDesc *)ptr.ToPointer();
}
doc->targetCompositeChannels = doc->mergedCompositeChannels = channel;
if (filterCase == FilterCase.EditableTransparencyNoSelection || filterCase == FilterCase.EditableTransparencyWithSelection)
{
IntPtr alphaPtr = CreateReadChannelDesc(PSConstants.ChannelPorts.Alpha, Resources.AlphaChannelName, doc->depth, doc->bounds);
doc->targetTransparency = doc->mergedTransparency = alphaPtr;
}
}
else if (imageMode == ImageModes.GrayScale || imageMode == ImageModes.Gray16)
{
IntPtr channel = CreateReadChannelDesc(PSConstants.ChannelPorts.Gray, Resources.GrayChannelName, doc->depth, doc->bounds);
doc->targetCompositeChannels = doc->mergedCompositeChannels = channel;
}
else if (imageMode == ImageModes.CMYK)
{
IntPtr channel = CreateReadChannelDesc(PSConstants.ChannelPorts.Cyan, Resources.CyanChannelName, doc->depth, doc->bounds);
ReadChannelDesc *ch = (ReadChannelDesc *)channel.ToPointer();
for (int i = PSConstants.ChannelPorts.Magenta; i <= PSConstants.ChannelPorts.Black; i++)
{
string name = null;
switch (i)
{
case PSConstants.ChannelPorts.Magenta:
name = Resources.MagentaChannelName;
break;
case PSConstants.ChannelPorts.Yellow:
name = Resources.YellowChannelName;
break;
case PSConstants.ChannelPorts.Black:
name = Resources.BlackChannelName;
break;
}
IntPtr ptr = CreateReadChannelDesc(i, name, doc->depth, doc->bounds);
ch->next = ptr;
ch = (ReadChannelDesc *)ptr.ToPointer();
}
doc->targetCompositeChannels = doc->mergedCompositeChannels = channel;
}
else
{
throw new InvalidOperationException(string.Format(CultureInfo.InvariantCulture, "Unsupported image mode: {0}", imageMode));
}
if (hasSelection)
{
IntPtr selectionPtr = CreateReadChannelDesc(PSConstants.ChannelPorts.SelectionMask, Resources.MaskChannelName, doc->depth, doc->bounds);
doc->selection = selectionPtr;
}
}
catch (Exception)
{
if (readDocumentPtr != IntPtr.Zero)
{
Memory.Free(readDocumentPtr);
}
throw;
}
return(readDocumentPtr);
}