public static Texture2D LoadTextureFromFile(SharpDX.Direct3D11.Device aDevice, string aFullPath)
{
Texture2D result = null;
ImagingFactory fac = new ImagingFactory();
BitmapDecoder bc = new SharpDX.WIC.BitmapDecoder(fac, aFullPath, DecodeOptions.CacheOnLoad);
BitmapFrameDecode bfc = bc.GetFrame(0);
FormatConverter fc = new FormatConverter(fac);
System.Guid desiredFormat = PixelFormat.Format32bppBGRA;
fc.Initialize(bfc, desiredFormat);
float[] buffer = new float[fc.Size.Width * fc.Size.Height];
bool canConvert = fc.CanConvert(bfc.PixelFormat, desiredFormat);
fc.CopyPixels <float>(buffer);
GCHandle handle = GCHandle.Alloc(buffer, GCHandleType.Pinned);
float sizeOfPixel = PixelFormat.GetBitsPerPixel(desiredFormat) / 8;
if (sizeOfPixel != 4.0f)
{
throw new System.Exception("Unknown error");
}
DataBox db = new DataBox(handle.AddrOfPinnedObject(), fc.Size.Width * (int)sizeOfPixel, fc.Size.Width * fc.Size.Height * (int)sizeOfPixel);
int width = fc.Size.Width;
int height = fc.Size.Height;
Texture2DDescription fTextureDesc = new Texture2DDescription();
fTextureDesc.CpuAccessFlags = CpuAccessFlags.None;
fTextureDesc.Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm;
fTextureDesc.Width = width;
fTextureDesc.Height = height;
fTextureDesc.Usage = ResourceUsage.Default;
fTextureDesc.MipLevels = 1;
fTextureDesc.ArraySize = 1;
fTextureDesc.OptionFlags = ResourceOptionFlags.None;
fTextureDesc.BindFlags = BindFlags.RenderTarget | BindFlags.ShaderResource;
fTextureDesc.SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0);
result = new Texture2D(aDevice, fTextureDesc, new DataBox[] { db });
handle.Free();
return(result);
}
private static void EncodeImage(ImagingFactory imagingFactory, Image image, WicFlags flags, Guid containerFormat, BitmapFrameEncode frame)
{
Guid pfGuid = ToWic(image.Format, false);
frame.Initialize();
frame.SetSize(image.Width, image.Height);
frame.SetResolution(72, 72);
Guid targetGuid = pfGuid;
frame.SetPixelFormat(ref targetGuid);
EncodeMetadata(frame, containerFormat, image.Format);
if (targetGuid != pfGuid)
{
// Conversion required to write.
GCHandle handle = GCHandle.Alloc(image.Data, GCHandleType.Pinned);
using (var source = new Bitmap(imagingFactory, image.Width, image.Height, pfGuid, new DataRectangle(handle.AddrOfPinnedObject(), image.RowPitch), image.Data.Length))
{
using (var converter = new FormatConverter(imagingFactory))
{
if (!converter.CanConvert(pfGuid, targetGuid))
{
throw new NotSupportedException("Format conversion is not supported.");
}
converter.Initialize(source, targetGuid, GetWicDither(flags), null, 0, BitmapPaletteType.Custom);
frame.WriteSource(converter, new Rectangle(0, 0, image.Width, image.Height));
}
}
handle.Free();
}
else
{
// No conversion required.
frame.WritePixels(image.Height, image.RowPitch, image.Data);
}
frame.Commit();
}
private static bool CopyTextureToWICStream(IDeviceResources deviceResource, Texture2D staging, WICStream stream, Guid pfGuid, Guid containerFormat)
{
using (var encoder = new BitmapEncoder(deviceResource.WICImgFactory, containerFormat))
{
var desc = staging.Description;
encoder.Initialize(stream);
var targetGuid = Guid.Empty;
using (var frame = new BitmapFrameEncode(encoder))
{
frame.Initialize();
frame.SetSize(desc.Width, desc.Height);
frame.SetResolution(72, 72);
switch (desc.Format)
{
case global::SharpDX.DXGI.Format.R32G32B32A32_Float:
case global::SharpDX.DXGI.Format.R16G16B16A16_Float:
targetGuid = PixelFormat.Format96bppRGBFloat;
break;
case global::SharpDX.DXGI.Format.R16G16B16A16_UNorm:
targetGuid = PixelFormat.Format48bppBGR;
break;
case global::SharpDX.DXGI.Format.R32_Float:
case global::SharpDX.DXGI.Format.R16_Float:
case global::SharpDX.DXGI.Format.R16_UNorm:
case global::SharpDX.DXGI.Format.R8_UNorm:
case global::SharpDX.DXGI.Format.A8_UNorm:
targetGuid = PixelFormat.Format48bppBGR;
break;
default:
targetGuid = PixelFormat.Format24bppBGR;
break;
}
frame.SetPixelFormat(ref targetGuid);
var databox = deviceResource.Device.ImmediateContext.MapSubresource(staging, 0, MapMode.Read, MapFlags.None);
try
{
if (targetGuid != pfGuid)
{
using (var bitmap = new Bitmap(deviceResource.WICImgFactory, desc.Width, desc.Height, pfGuid,
new global::SharpDX.DataRectangle(databox.DataPointer, databox.RowPitch)))
{
using (var converter = new FormatConverter(deviceResource.WICImgFactory))
{
if (converter.CanConvert(pfGuid, targetGuid))
{
converter.Initialize(bitmap, targetGuid, BitmapDitherType.None, null, 0, BitmapPaletteType.MedianCut);
frame.WriteSource(converter);
}
else
{
Debug.WriteLine("Cannot convert");
}
}
}
}
else
{
frame.WritePixels(desc.Height, new global::SharpDX.DataRectangle(databox.DataPointer, databox.RowPitch), databox.RowPitch * desc.Height);
}
}
finally
{
deviceResource.Device.ImmediateContext.UnmapSubresource(staging, 0);
}
frame.Commit();
encoder.Commit();
return(true);
}
}
}
private Result SaveWicTextureToFileFix(
DeviceContext context,
Texture2D source,
ref Guid guidContainerFormat,
string fileName)
{
if (fileName == null)
{
return(Result.InvalidArg);
}
var res = CaptureTextureFix(context, source, out var desc, out var staging);
if (res.Failure)
{
return(res);
}
Guid pfGuid;
//bool sRGB = false;
Guid targetGuid;
switch (desc.Format)
{
case Format.R32G32B32A32_Float: pfGuid = PixelFormat.Format128bppRGBAFloat; break;
case Format.R16G16B16A16_Float: pfGuid = PixelFormat.Format64bppRGBAHalf; break;
case Format.R16G16B16A16_UNorm: pfGuid = PixelFormat.Format64bppRGBA; break;
case Format.R10G10B10_Xr_Bias_A2_UNorm: pfGuid = PixelFormat.Format32bppRGBA1010102XR; break; // DXGI 1.1
case Format.R10G10B10A2_UNorm: pfGuid = PixelFormat.Format32bppRGBA1010102; break;
case Format.B5G5R5A1_UNorm: pfGuid = PixelFormat.Format16bppBGRA5551; break;
case Format.B5G6R5_UNorm: pfGuid = PixelFormat.Format16bppBGR565; break;
case Format.R32_Float: pfGuid = PixelFormat.Format32bppGrayFloat; break;
case Format.R16_Float: pfGuid = PixelFormat.Format16bppGrayHalf; break;
case Format.R16_UNorm: pfGuid = PixelFormat.Format16bppGray; break;
case Format.R8_UNorm: pfGuid = PixelFormat.Format8bppGray; break;
case Format.A8_UNorm: pfGuid = PixelFormat.Format8bppAlpha; break;
case Format.R8G8B8A8_UNorm:
pfGuid = PixelFormat.Format32bppRGBA;
break;
case Format.R8G8B8A8_UNorm_SRgb:
pfGuid = PixelFormat.Format32bppRGBA;
//sRGB = true;
break;
case Format.B8G8R8A8_UNorm: // DXGI 1.1
pfGuid = PixelFormat.Format32bppBGRA;
break;
case Format.B8G8R8A8_UNorm_SRgb: // DXGI 1.1
pfGuid = PixelFormat.Format32bppBGRA;
//sRGB = true;
break;
case Format.B8G8R8X8_UNorm: // DXGI 1.1
pfGuid = PixelFormat.Format32bppBGR;
break;
case Format.B8G8R8X8_UNorm_SRgb: // DXGI 1.1
pfGuid = PixelFormat.Format32bppBGR;
//sRGB = true;
break;
default:
return(Result.GetResultFromWin32Error(unchecked ((int)0x80070032)));
}
// Create file
var fs = new FileStream(fileName, FileMode.Create);
var encoder = new BitmapEncoder(Direct2D.ImageFactory, guidContainerFormat);
encoder.Initialize(fs);
var frameEncode = new BitmapFrameEncode(encoder);
frameEncode.Initialize();
frameEncode.SetSize(desc.Width, desc.Height);
frameEncode.SetResolution(72.0, 72.0);
switch (desc.Format)
{
case Format.R32G32B32A32_Float:
case Format.R16G16B16A16_Float:
targetGuid = PixelFormat.Format24bppBGR;
break;
case Format.R16G16B16A16_UNorm: targetGuid = PixelFormat.Format48bppBGR; break;
case Format.B5G5R5A1_UNorm: targetGuid = PixelFormat.Format16bppBGR555; break;
case Format.B5G6R5_UNorm: targetGuid = PixelFormat.Format16bppBGR565; break;
case Format.R32_Float:
case Format.R16_Float:
case Format.R16_UNorm:
case Format.R8_UNorm:
case Format.A8_UNorm:
targetGuid = PixelFormat.Format8bppGray;
break;
default:
targetGuid = PixelFormat.Format24bppBGR;
break;
}
frameEncode.SetPixelFormat(ref targetGuid);
#region Write
var db = context.MapSubresource(staging, 0, MapMode.Read, MapFlags.None, out _);
if (pfGuid != targetGuid)
{
var formatConverter = new FormatConverter(Direct2D.ImageFactory);
if (formatConverter.CanConvert(pfGuid, targetGuid))
{
var src = new Bitmap(Direct2D.ImageFactory, desc.Width, desc.Height, pfGuid,
new DataRectangle(db.DataPointer, db.RowPitch));
formatConverter.Initialize(src, targetGuid, BitmapDitherType.None, null, 0, BitmapPaletteType.Custom);
frameEncode.WriteSource(formatConverter, new Rectangle(0, 0, desc.Width, desc.Height));
}
}
else
{
frameEncode.WritePixels(desc.Height, new DataRectangle(db.DataPointer, db.RowPitch));
}
context.UnmapSubresource(staging, 0);
frameEncode.Commit();
encoder.Commit();
#endregion
frameEncode.Dispose();
encoder.Dispose();
fs.Close();
return(Result.Ok);
}
/// <summary>
/// 從WIC Frame建立貼圖資源(非DDS)
/// </summary>
/// <param name="d3dContext">If a Direct3D 11 device context is provided and the current device supports it for the given pixel format, it will auto-generate mipmaps.</param>
private static Result CreateWICTexture(Device device, DeviceContext d3dContext, BitmapFrameDecode frame, int maxsize, ResourceUsage usage, BindFlags bind, CpuAccessFlags cpuAccess, ResourceOptionFlags option, LoadFlags load, out Resource texture, out ShaderResourceView textureView)
{
texture = null;
textureView = null;
if (frame.Size.Width <= 0 || frame.Size.Height <= 0)
{
return(Result.InvalidArg);
}
if (maxsize == 0)
{
switch (device.FeatureLevel)
{
case FeatureLevel.Level_9_1:
case FeatureLevel.Level_9_2:
maxsize = 2048 /*D3D_FL9_1_REQ_TEXTURE2D_U_OR_V_DIMENSION*/;
break;
case FeatureLevel.Level_9_3:
maxsize = 4096 /*D3D_FL9_3_REQ_TEXTURE2D_U_OR_V_DIMENSION*/;
break;
case FeatureLevel.Level_10_0:
case FeatureLevel.Level_10_1:
maxsize = 8192 /*D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION*/;
break;
default:
maxsize = Resource.MaximumTexture2DSize; /*D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION*/
break;
}
}
Size2 frameSize = frame.Size;
Size2 targetSize;
if (frameSize.Width > maxsize || frameSize.Height > maxsize)
{
double ratio = Convert.ToDouble(frameSize.Height) / Convert.ToDouble(frameSize.Width);
if (frameSize.Width > frameSize.Height)
{
targetSize.Width = maxsize;
targetSize.Height = Math.Max(1, Convert.ToInt32(maxsize * ratio));
}
else
{
targetSize.Height = maxsize;
targetSize.Width = Math.Max(1, Convert.ToInt32(maxsize / ratio));
}
}
else
{
targetSize = frameSize;
}
#region Determine format
Guid sourceFormat = frame.PixelFormat;
Guid targetFormat = sourceFormat;
DXGI.Format format = sourceFormat.ConvertWICToDXGIFormat();
int bpp = 0;
if (format == DXGI.Format.Unknown)
{
if (sourceFormat == PixelFormat.Format96bppRGBFixedPoint)
{
if (WIC2)
{
targetFormat = PixelFormat.Format96bppRGBFloat;
format = DXGI.Format.R32G32B32_Float;
bpp = 96;
}
else
{
targetFormat = PixelFormat.Format128bppRGBAFloat;
format = DXGI.Format.R32G32B32A32_Float;
bpp = 128;
}
}
else
{
targetFormat = sourceFormat.ConvertToNearest();
format = targetFormat.ConvertWICToDXGIFormat();
bpp = PixelFormat.GetBitsPerPixel(targetFormat);
}
if (format == DXGI.Format.Unknown)
{
return(Result.GetResultFromWin32Error(unchecked ((int)0x80070032)));
}
}
else
{
bpp = PixelFormat.GetBitsPerPixel(sourceFormat);
}
if (format == DXGI.Format.R32G32B32_Float && d3dContext != null)
{
// Special case test for optional device support for autogen mipchains for R32G32B32_FLOAT
var formatSupport = device.CheckFormatSupport(format);
if (!formatSupport.HasFlag(FormatSupport.MipAutogen))
{
targetFormat = PixelFormat.Format128bppRGBAFloat;
format = DXGI.Format.R32G32B32A32_Float;
bpp = 128;
}
}
if (bpp == 0)
{
return(Result.Fail);
}
if (load.HasFlag(LoadFlags.ForceSrgb))
{
format = format.MakeSRgb();
}
else if (!load.HasFlag(LoadFlags.ignoreSrgb))
{
bool sRGB = false;
try {
var metareader = frame.MetadataQueryReader;
var containerFormat = metareader.ContainerFormat;
if (containerFormat == ContainerFormatGuids.Png)
{
// Check for sRGB chunk
if (metareader.TryGetMetadataByName("/sRGB/RenderingIntent", out var value) == Result.Ok)
{
sRGB = true;
}
}
else if (metareader.TryGetMetadataByName("System.Image.ColorSpace", out var value) == Result.Ok)
{
sRGB = true;
}
if (sRGB)
{
format = format.MakeSRgb();
}
} catch (SharpDXException) {
// BMP, ICO are not supported.
}
}
// Verify our target format is supported by the current device
var support = device.CheckFormatSupport(format);
if (!support.HasFlag(FormatSupport.Texture2D))
{
targetFormat = PixelFormat.Format32bppRGBA;
format = DXGI.Format.R8G8B8A8_UNorm;
bpp = 32;
}
#endregion
int stride = (targetSize.Width * bpp + 7) / 8; // round
int imageSize = stride * targetSize.Height;
IntPtr temp = System.Runtime.InteropServices.Marshal.AllocCoTaskMem(imageSize);
if (sourceFormat == targetFormat && frameSize == targetSize) // 不需要格式轉換 且 不需要改變大小
{
frame.CopyPixels(stride, new DataPointer(temp, imageSize));
}
else if (frameSize == targetSize) // 需要格式轉換
{
using (var factory = new ImagingFactory2())
using (var coverter = new FormatConverter(factory)) {
if (coverter.CanConvert(sourceFormat, targetFormat))
{
coverter.Initialize(frame, targetFormat, BitmapDitherType.ErrorDiffusion, null, 0, BitmapPaletteType.MedianCut);
coverter.CopyPixels(stride, new DataPointer(temp, imageSize));
}
else
{
return(Result.UnexpectedFailure);
}
}
}
else if (sourceFormat == targetFormat) // 需要改變大小
{
using (var factory = new ImagingFactory2())
using (var scaler = new BitmapScaler(factory)) {
scaler.Initialize(frame, targetSize.Width, targetSize.Height, BitmapInterpolationMode.Fant);
var pfScaler = scaler.PixelFormat;
if (targetFormat == pfScaler)
{
scaler.CopyPixels(stride, new DataPointer(temp, imageSize));
}
}
}
else // 需要格式轉換 且 需要改變大小
{
using (var factory = new ImagingFactory2())
using (var scaler = new BitmapScaler(factory))
using (var coverter = new FormatConverter(factory)) {
scaler.Initialize(frame, targetSize.Width, targetSize.Height, BitmapInterpolationMode.Fant);
var pfScaler = scaler.PixelFormat;
if (coverter.CanConvert(pfScaler, targetFormat))
{
coverter.Initialize(scaler, targetFormat, BitmapDitherType.ErrorDiffusion, null, 0, BitmapPaletteType.MedianCut);
coverter.CopyPixels(stride, new DataPointer(temp, imageSize));
}
else
{
return(Result.UnexpectedFailure);
}
}
}
var autogen = false;
if (d3dContext != null)
{
var formatSupport = device.CheckFormatSupport(format);
if (formatSupport.HasFlag(FormatSupport.MipAutogen))
{
autogen = true;
}
}
var texture2DDescription = new Texture2DDescription()
{
Width = targetSize.Width,
Height = targetSize.Height,
MipLevels = autogen ? 0 : 1,
ArraySize = 1,
Format = format,
SampleDescription = new DXGI.SampleDescription(1, 0),
Usage = usage,
CpuAccessFlags = cpuAccess,
};
if (autogen)
{
texture2DDescription.BindFlags = bind | BindFlags.RenderTarget;
texture2DDescription.OptionFlags = option | ResourceOptionFlags.GenerateMipMaps;
}
else
{
texture2DDescription.BindFlags = bind;
texture2DDescription.OptionFlags = option;
}
Result result = Result.Ok;
// 建立Texture2D !!!
try {
if (autogen)
{
texture = new Texture2D(device, texture2DDescription);
}
else
{
texture = new Texture2D(device, texture2DDescription, new DataBox[] { new DataBox(temp, stride, imageSize) });
}
} catch (SharpDXException e) {
System.Diagnostics.Debug.WriteLine(e.ToString());
result = Result.Fail;
}
if (result.Success)
{
var SRVDesc = new ShaderResourceViewDescription()
{
Format = format,
Dimension = ShaderResourceViewDimension.Texture2D,
Texture2D = new ShaderResourceViewDescription.Texture2DResource()
{
MipLevels = autogen ? -1 : 1
},
};
try {
textureView = new ShaderResourceView(device, texture, SRVDesc);
if (autogen)
{
DataBox data = new DataBox(temp, stride, imageSize);
d3dContext.UpdateSubresource(data, texture);
d3dContext.GenerateMips(textureView);
}
} catch (Exception e) {
System.Diagnostics.Debug.WriteLine(e.ToString());
Utilities.Dispose(ref texture);
result = Result.Fail;
}
}
// 釋放 Unmanaged 資源
System.Runtime.InteropServices.Marshal.FreeCoTaskMem(temp);
return(result);
}
public static Result SaveTextureToStream(Device d3dDevice, Resource source, Stream stream, Guid containerFormat, Guid targetFormatGuid)
{
Result result = Result.Fail;
if (source == null || d3dDevice == null || stream == null)
{
return(Result.InvalidArg);
}
result = CreateStagingTexture(d3dDevice.ImmediateContext, source, out Texture2DDescription desc, out Texture2D staging);
if (!result.Success)
{
return(result);
}
Guid sourceFormat = desc.Format.ConvertDXGIToWICFormat();
if (sourceFormat == Guid.Empty)
{
return(Result.InvalidArg);
}
if (ImagingFactory == null)
{
return(Result.NoInterface);
}
Guid targetFormat = targetFormatGuid;
if (targetFormat == Guid.Empty)
{
switch (desc.Format)
{
case DXGI.Format.R32G32B32A32_Float:
case DXGI.Format.R16G16B16A16_Float:
if (WIC2)
{
targetFormat = PixelFormat.Format96bppRGBFloat;
}
else
{
targetFormat = PixelFormat.Format24bppBGR;
}
break;
case DXGI.Format.R16G16B16A16_UNorm:
targetFormat = PixelFormat.Format48bppBGR;
break;
case DXGI.Format.B5G5R5A1_UNorm:
targetFormat = PixelFormat.Format16bppBGR555;
break;
case DXGI.Format.B5G6R5_UNorm:
targetFormat = PixelFormat.Format16bppBGR565;
break;
case DXGI.Format.R32_Float:
case DXGI.Format.R16_Float:
case DXGI.Format.R16_UNorm:
case DXGI.Format.R8_UNorm:
case DXGI.Format.A8_UNorm:
targetFormat = PixelFormat.Format8bppGray;
break;
default:
targetFormat = PixelFormat.Format24bppBGR;
break;
}
}
if (targetFormatGuid != Guid.Empty && targetFormatGuid != targetFormat)
{
return(result);
}
try {
// Create a new file
if (stream.CanWrite)
{
using (BitmapEncoder encoder = new BitmapEncoder(ImagingFactory, containerFormat)) {
encoder.Initialize(stream);
using (BitmapFrameEncode frameEncode = new BitmapFrameEncode(encoder)) {
frameEncode.Initialize();
frameEncode.SetSize(desc.Width, desc.Height);
frameEncode.SetResolution(72.0, 72.0);
frameEncode.SetPixelFormat(ref targetFormat);
if (targetFormatGuid == Guid.Empty || targetFormat == targetFormatGuid)
{
int subresource = 0;
// 讓CPU存取顯存貼圖
// MapSubresource 在 deferred context 下不支援 MapMode.Read
DataBox db = d3dDevice.ImmediateContext.MapSubresource(staging, subresource, MapMode.Read, MapFlags.None, out var dataStream);
if (sourceFormat != targetFormat)
{
// BGRA格式轉換
using (FormatConverter formatCoverter = new FormatConverter(ImagingFactory)) {
if (formatCoverter.CanConvert(sourceFormat, targetFormat))
{
Bitmap src = new Bitmap(ImagingFactory, desc.Width, desc.Height, sourceFormat, new DataRectangle(db.DataPointer, db.RowPitch));
formatCoverter.Initialize(src, targetFormat, BitmapDitherType.None, null, 0, BitmapPaletteType.Custom);
frameEncode.WriteSource(formatCoverter, new Rectangle(0, 0, desc.Width, desc.Height));
}
}
}
else
{
frameEncode.WritePixels(desc.Height, new DataRectangle(db.DataPointer, db.RowPitch));
}
// 控制權歸還
d3dDevice.ImmediateContext.UnmapSubresource(staging, subresource);
frameEncode.Commit();
encoder.Commit();
result = Result.Ok;
}
}
}
}
} catch (Exception e) {
System.Diagnostics.Debug.WriteLine(e.ToString());
result = Result.Fail;
}
Utilities.Dispose(ref staging);
return(result);
}