public static WICBitmapPattern[] GetPatterns(this IWICBitmapDecoderInfo bitmapDecoderInfo)
{
int count;
int size;
bitmapDecoderInfo.GetPatterns(0, IntPtr.Zero, out count, out size);
if (count == 0)
{
return(new WICBitmapPattern[0]);
}
using (var buffer = new CoTaskMemPtr(Marshal.AllocCoTaskMem(size)))
{
bitmapDecoderInfo.GetPatterns(size, buffer, out count, out size);
IntPtr at = buffer;
var patterns = new WICBitmapPattern[count];
for (int i = 0, stride = Marshal.SizeOf(typeof(WICBitmapPatternRaw)); i < count; ++i, at += stride)
{
var raw = (WICBitmapPatternRaw)Marshal.PtrToStructure(at, typeof(WICBitmapPatternRaw));
int length = raw.Length;
patterns[i] = new WICBitmapPattern()
{
Length = length,
Position = raw.Position,
Pattern = new byte[length],
Mask = new byte[length],
EndOfStream = raw.EndOfStream
};
Marshal.Copy(raw.Pattern, patterns[i].Pattern, 0, length);
Marshal.Copy(raw.Mask, patterns[i].Mask, 0, length);
}
return(patterns);
}
}
private void Check(MainForm form, IWICBitmapDecoderInfo info, Tag tag)
{
ComponentInfoHelper.CheckNotReserverdGuid(form, info.GetContainerFormat, this);
tag.PixelFormats = PixelFormatInfoRule.CheckPixelFormats(form, this, info.GetPixelFormats);
ComponentInfoHelper.CheckVersion(form, info.GetColorManagementVersion, this);
ComponentInfoHelper.CheckCommaSeparatedString(form, info.GetMimeTypes, ComponentInfoHelper.MimeMask, this);
tag.Extensions = ComponentInfoHelper.CheckCommaSeparatedString(form, info.GetFileExtensions, ComponentInfoHelper.ExtensionMask, this);
if (!info.DoesSupportMultiframe() && info.DoesSupportAnimation())
{
form.Add(this, Resources.DecoderAnimationIfMultiframe);
}
tag.SupportsMultiframe = info.DoesSupportMultiframe();
uint size = info.GetPatterns(0, IntPtr.Zero, out var count);
if (size != 0)
{
IntPtr p = Marshal.AllocCoTaskMem((int)size);
try
{
info.GetPatterns(size, p, out count);
WICBitmapPattern[] patterns = PropVariantMarshaler.ToArrayOf <WICBitmapPattern>(p, (int)count);
int index = 0;
var dups = new HashSet <int>();
foreach (WICBitmapPattern pattern in patterns)
{
index++;
if (pattern.Length == 0)
{
form.Add(this, Resources.PatternZeroLength, new DataEntry(Resources.PatternIndex, index));
}
else if (index < patterns.Length)
{
if (Array.FindIndex(patterns, index, delegate(WICBitmapPattern obj) { return(obj.EndOfStream == pattern.EndOfStream && obj.Position == pattern.Position && GetNormalizedMask(obj).ItemsEqual(GetNormalizedMask(pattern))); }) >= 0)
{
dups.Add(index);
}
}
}
if (dups.Count > 0)
{
form.Add(this, Resources.PatternDuplicated, new DataEntry(Resources.PatternIndices, dups.ToArray()));
}
}
finally
{
Marshal.FreeCoTaskMem(p);
}
}
if (count == 0 || size == 0)
{
form.Add(this, Resources.PatternNo);
}
}
void Check(MainForm form, IWICBitmapDecoderInfo info, Tag tag)
{
ComponentInfoHelper.CheckNotReserverdGuid(form, info.GetContainerFormat, this);
tag.PixelFormats = PixelFormatInfoRule.CheckPixelFormats(form, this, info.GetPixelFormats);
ComponentInfoHelper.CheckVersion(form, info.GetColorManagementVersion, this);
ComponentInfoHelper.CheckCommaSeparatedString(form, info.GetMimeTypes, ComponentInfoHelper.MimeMask, this);
tag.Extensions = ComponentInfoHelper.CheckCommaSeparatedString(form, info.GetFileExtensions, ComponentInfoHelper.ExtensionMask, this);
if (!info.DoesSupportMultiframe() && info.DoesSupportAnimation())
{
form.Add(this, Resources.DecoderAnimationIfMultiframe);
}
tag.SupportsMultiframe = info.DoesSupportMultiframe();
uint count;
uint size = info.GetPatterns(0, IntPtr.Zero, out count);
if (size != 0)
{
IntPtr p = Marshal.AllocCoTaskMem((int)size);
try
{
info.GetPatterns(size, p, out count);
WICBitmapPattern[] patterns = PropVariantMarshaler.ToArrayOf<WICBitmapPattern>(p, (int)count);
int index = 0;
HashSet<int> dups = new HashSet<int>();
foreach (WICBitmapPattern pattern in patterns)
{
index++;
if (pattern.Length == 0)
{
form.Add(this, Resources.PatternZeroLength, new DataEntry(Resources.PatternIndex, index));
}
else if (index < patterns.Length)
{
if (Array.FindIndex(patterns, index, delegate(WICBitmapPattern obj) { return obj.EndOfStream == pattern.EndOfStream && obj.Position == pattern.Position && GetNormalizedMask(obj).ItemsEqual(GetNormalizedMask(pattern)); }) >= 0)
{
dups.Add(index);
}
}
}
if (dups.Count > 0)
{
form.Add(this, Resources.PatternDuplicated, new DataEntry(Resources.PatternIndices, dups.ToArray()));
}
}
finally
{
Marshal.FreeCoTaskMem(p);
}
}
if (count == 0 || size == 0)
{
form.Add(this, Resources.PatternNo);
}
}
