public H1ImageWrapper(String filePath)
{
// to manipulate WIC objects
ImagingFactory imagingFactory = new ImagingFactory();
// to open the file that holds the bitmap data
NativeFileStream fileStream = new NativeFileStream(
filePath, NativeFileMode.Open, NativeFileAccess.Read);
BitmapDecoder bitmapDecoder = new BitmapDecoder(imagingFactory, fileStream,
DecodeOptions.CacheOnDemand // for the time being as we won't be needing to take advantage of special cache handling
);
// to retrieve the frame index 0 (static image only have one frame)
const Int32 StaticFrame = 0;
BitmapFrameDecode frame = bitmapDecoder.GetFrame(StaticFrame);
// convert out bitmaps to the same pixel format for the shake of normalization
FormatConverter converter = new FormatConverter(imagingFactory);
converter.Initialize(frame, SharpDX.WIC.PixelFormat.Format32bppPRGBA);
// set the pixel format
SetPixelFormat(converter.PixelFormat);
// having the correct pixel format, we can finally create the desired SharpDX.Direct2D1.Bitmap1
Int32 width = converter.Size.Width;
Int32 height = converter.Size.Height;
Int32 stride = converter.Size.Width * 4;
Int32 dataSize = height * stride;
using (var buffer = new SharpDX.DataStream(dataSize, true, true))
{
// copy the data to the buffer
converter.CopyPixels(stride, buffer);
H1GeneralBuffer generalBuffer = H1Global <H1ManagedRenderer> .Instance.CreateGeneralBuffer(Convert.ToUInt32(dataSize));
// mapping the data to the resource (buffer)
generalBuffer.WriteData(buffer.DataPointer, dataSize);
// first create texture resource
//H1Texture2D textureObject = H1Global<H1ManagedRenderer>.Instance.CreateTexture2D(PixelFormat, width, height, new SharpDX.Vector4(), null);
m_tempTextureObject = H1Global <H1ManagedRenderer> .Instance.CreateTexture2D(PixelFormat, width, height, new SharpDX.Vector4(), null);
// copy texture region
//H1Global<H1ManagedRenderer>.Instance.CopyTextureRegion(textureObject, generalBuffer);
H1Global <H1ManagedRenderer> .Instance.CopyTextureRegion(m_tempTextureObject, generalBuffer);
}
//https://english.r2d2rigo.es/2014/08/12/loading-and-drawing-bitmaps-with-direct2d-using-sharpdx/
//http://stackoverflow.com/questions/9602102/loading-textures-with-sharpdx-in-windows-store-app
//http://sharpdx.org/wiki/class-library-api/wic/
}
public void CopyTextureRegion(H1Texture2D texObject, H1GeneralBuffer generalBuffer)
{
// reuse the memory associated with command recording
// we can only reset when the associated command lists have finished execution on the GPU
m_CommandList.CommandAllocator.Reset();
// a command list can be reset after it has been added to the command queue via ExecuteCommandList
m_CommandList.CommandList.Reset(m_CommandList.CommandAllocator, null);
// @TODO - I need to change this into parallel copy texture region by managing multiple command queue
H1GPUResourceManager refResourceManager = H1Global <H1ManagedRenderer> .Instance.ResourceManager;
// create destination and source locations
// TextureCopyLocation - describe a portion of texture for the purpose of texture copies
TextureCopyLocation destLocation = new TextureCopyLocation(refResourceManager.GetTexture2D(Convert.ToInt32(texObject.Index)), 0);
TextureCopyLocation srcLocation = new TextureCopyLocation(generalBuffer.Resource,
new PlacedSubResourceFootprint() // describes the footprint of a placed subresource, including the offset and the D3D12_SUBRESOURCE_FOOTPRINT
{
Offset = 0, // the offset of the subresource within the parent resource in bytes
Footprint = new SubResourceFootprint() // describes the format, with, height, depth and row-pitch of the subresource into the parent resource
{
Width = Convert.ToInt32(texObject.Width),
Height = Convert.ToInt32(texObject.Height),
Depth = 1,
Format = H1RHIDefinitionHelper.ConvertToFormat(texObject.PixelFormat),
RowPitch = Convert.ToInt32(texObject.Stride),
}
});
m_CommandList.CommandList.ResourceBarrierTransition(texObject.Resource, ResourceStates.GenericRead, ResourceStates.CopyDestination);
m_CommandList.CommandList.CopyTextureRegion(destLocation, 0, 0, 0, srcLocation, null);
m_CommandList.CommandList.ResourceBarrierTransition(texObject.Resource, ResourceStates.CopyDestination, ResourceStates.GenericRead);
m_CommandList.CommandList.Close();
m_DeviceContext.MainCommandListPool.CommandQueue.ExecuteCommandList(m_CommandList.CommandList);
}