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Move data between two Texture2D instances manually

pull/1069/head
Nikita Tsukanov 9 years ago
parent
1cc13484c0
commit
e0f481ae9f
1 changed files with 30 additions and 31 deletions
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  1. 61
      src/Windows/Avalonia.Win32.Interop/Wpf/Direct2DImageSurface.cs

61
src/Windows/Avalonia.Win32.Interop/Wpf/Direct2DImageSurface.cs
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@ -17,6 +17,8 @@ using Device = SharpDX.Direct3D11.Device;
using Format = SharpDX.DXGI.Format; using Format = SharpDX.DXGI.Format;
using MapFlags = SharpDX.Direct3D11.MapFlags; using MapFlags = SharpDX.Direct3D11.MapFlags;
using PresentParameters = SharpDX.DXGI.PresentParameters; using PresentParameters = SharpDX.DXGI.PresentParameters;
using Query = SharpDX.Direct3D11.Query;
using QueryType = SharpDX.Direct3D11.QueryType;
using RenderTarget = SharpDX.Direct2D1.RenderTarget; using RenderTarget = SharpDX.Direct2D1.RenderTarget;
using Surface = SharpDX.DXGI.Surface; using Surface = SharpDX.DXGI.Surface;
using SwapEffect = SharpDX.DXGI.SwapEffect; using SwapEffect = SharpDX.DXGI.SwapEffect;
@ -28,9 +30,9 @@ namespace Avalonia.Win32.Interop.Wpf
{ {
class SwapBuffer: IDisposable class SwapBuffer: IDisposable
{ {
private Query _event;
private readonly SharpDX.Direct3D11.Resource _resource; private readonly SharpDX.Direct3D11.Resource _resource;
private readonly SharpDX.Direct3D11.Resource _stagingResource; private readonly SharpDX.Direct3D11.Resource _sharedResource;
public SharpDX.Direct3D9.Surface Texture { get; } public SharpDX.Direct3D9.Surface Texture { get; }
public RenderTarget Target { get;} public RenderTarget Target { get;}
public Size Size { get; } public Size Size { get; }
@ -39,6 +41,7 @@ namespace Avalonia.Win32.Interop.Wpf
{ {
int width = (int) size.Width; int width = (int) size.Width;
int height = (int) size.Height; int height = (int) size.Height;
_event = new Query(s_dxDevice, new QueryDescription {Type = QueryType.Event});
using (var texture = new Texture2D(s_dxDevice, new Texture2DDescription using (var texture = new Texture2D(s_dxDevice, new Texture2DDescription
{ {
Width = width, Width = width,
@ -47,19 +50,14 @@ namespace Avalonia.Win32.Interop.Wpf
MipLevels = 1, MipLevels = 1,
Format = Format.B8G8R8A8_UNorm, Format = Format.B8G8R8A8_UNorm,
Usage = ResourceUsage.Default, Usage = ResourceUsage.Default,
SampleDescription = new SampleDescription(1, 0), SampleDescription = new SampleDescription(2, 0),
BindFlags = BindFlags.RenderTarget | BindFlags.ShaderResource, BindFlags = BindFlags.RenderTarget,
OptionFlags = ResourceOptionFlags.Shared
})) }))
using (var surface = texture.QueryInterface<Surface>()) using (var surface = texture.QueryInterface<Surface>())
using (var resource = texture.QueryInterface<SharpDX.DXGI.Resource>())
{ {
_resource = texture.QueryInterface<SharpDX.Direct3D11.Resource>(); _resource = texture.QueryInterface<SharpDX.Direct3D11.Resource>();
var handle = resource.SharedHandle;
using (var texture9 = new Texture(s_d3DDevice, texture.Description.Width,
texture.Description.Height, 1,
Usage.RenderTarget, SharpDX.Direct3D9.Format.A8R8G8B8, Pool.Default, ref handle))
Texture = texture9.GetSurfaceLevel(0);
Target = new RenderTarget(AvaloniaLocator.Current.GetService<SharpDX.Direct2D1.Factory>(), surface, Target = new RenderTarget(AvaloniaLocator.Current.GetService<SharpDX.Direct2D1.Factory>(), surface,
new RenderTargetProperties new RenderTargetProperties
{ {
@ -72,16 +70,25 @@ namespace Avalonia.Win32.Interop.Wpf
} }
using (var texture = new Texture2D(s_dxDevice, new Texture2DDescription using (var texture = new Texture2D(s_dxDevice, new Texture2DDescription
{ {
Width = Math.Min(width, 16), Width = width,
Height = Math.Min(height, 16), Height = height,
ArraySize = 1, ArraySize = 1,
MipLevels = 1, MipLevels = 1,
Format = Format.B8G8R8A8_UNorm, Format = Format.B8G8R8A8_UNorm,
Usage = ResourceUsage.Staging, Usage = ResourceUsage.Default,
SampleDescription = new SampleDescription(1, 0), SampleDescription = new SampleDescription(1, 0),
CpuAccessFlags = CpuAccessFlags.Read BindFlags = BindFlags.RenderTarget|BindFlags.ShaderResource,
OptionFlags = ResourceOptionFlags.Shared,
})) }))
_stagingResource = texture.QueryInterface<SharpDX.Direct3D11.Resource>(); using (var resource = texture.QueryInterface<SharpDX.DXGI.Resource>())
{
_sharedResource = texture.QueryInterface<SharpDX.Direct3D11.Resource>();
var handle = resource.SharedHandle;
using (var texture9 = new Texture(s_d3DDevice, texture.Description.Width,
texture.Description.Height, 1,
Usage.RenderTarget, SharpDX.Direct3D9.Format.A8R8G8B8, Pool.Default, ref handle))
Texture = texture9.GetSurfaceLevel(0);
}
Size = size; Size = size;
} }
@ -90,21 +97,20 @@ namespace Avalonia.Win32.Interop.Wpf
Texture?.Dispose(); Texture?.Dispose();
Target?.Dispose(); Target?.Dispose();
_resource?.Dispose(); _resource?.Dispose();
_stagingResource?.Dispose(); _sharedResource?.Dispose();
} }
public void Flush() public void Flush()
{ {
s_dxDevice.ImmediateContext.CopySubresourceRegion(_resource, 0, s_dxDevice.ImmediateContext.ResolveSubresource(_resource, 0, _sharedResource, 0, Format.B8G8R8A8_UNorm);
new ResourceRegion(0, 0, 0, 1, 1, 1), _stagingResource, 0, 0, 0, 0); s_dxDevice.ImmediateContext.Flush();
s_dxDevice.ImmediateContext.MapSubresource(_stagingResource, 0, MapMode.Read, MapFlags.None); s_dxDevice.ImmediateContext.End(_event);
s_dxDevice.ImmediateContext.UnmapSubresource(_stagingResource, 0); s_dxDevice.ImmediateContext.GetData(_event).Dispose();
} }
} }
private D3DImage _image; private D3DImage _image;
private SwapBuffer _backBuffer; private SwapBuffer _backBuffer;
private SwapBuffer _frontBuffer;
private readonly WpfTopLevelImpl _impl; private readonly WpfTopLevelImpl _impl;
private static Device s_dxDevice; private static Device s_dxDevice;
private static Direct3DEx s_d3DContext; private static Direct3DEx s_d3DContext;
@ -154,7 +160,6 @@ namespace Avalonia.Win32.Interop.Wpf
RemoveAndDispose(ref _backBuffer); RemoveAndDispose(ref _backBuffer);
if (size == default(Size)) if (size == default(Size))
{ {
RemoveAndDispose(ref _frontBuffer);
_image.Lock(); _image.Lock();
_image.SetBackBuffer(D3DResourceType.IDirect3DSurface9, IntPtr.Zero); _image.SetBackBuffer(D3DResourceType.IDirect3DSurface9, IntPtr.Zero);
_image.Unlock(); _image.Unlock();
@ -173,12 +178,9 @@ namespace Avalonia.Win32.Interop.Wpf
void Swap() void Swap()
{ {
var oldFront = _frontBuffer; _backBuffer.Flush();
_frontBuffer = _backBuffer;
_backBuffer = oldFront;
_frontBuffer.Flush();
_image.Lock(); _image.Lock();
_image.SetBackBuffer(D3DResourceType.IDirect3DSurface9, _frontBuffer?.Texture?.NativePointer ?? IntPtr.Zero, true); _image.SetBackBuffer(D3DResourceType.IDirect3DSurface9, _backBuffer?.Texture?.NativePointer ?? IntPtr.Zero, true);
_image.AddDirtyRect(new Int32Rect(0, 0, _image.PixelWidth, _image.PixelHeight)); _image.AddDirtyRect(new Int32Rect(0, 0, _image.PixelWidth, _image.PixelHeight));
_image.Unlock(); _image.Unlock();
} }
@ -186,8 +188,6 @@ namespace Avalonia.Win32.Interop.Wpf
public void DestroyRenderTarget() public void DestroyRenderTarget()
{ {
RemoveAndDispose(ref _backBuffer); RemoveAndDispose(ref _backBuffer);
RemoveAndDispose(ref _frontBuffer);
//?
} }
public void BeforeDrawing() public void BeforeDrawing()
@ -198,7 +198,6 @@ namespace Avalonia.Win32.Interop.Wpf
public void AfterDrawing() => Swap(); public void AfterDrawing() => Swap();
public void Dispose() public void Dispose()
{ {
RemoveAndDispose(ref _frontBuffer);
RemoveAndDispose(ref _backBuffer); RemoveAndDispose(ref _backBuffer);
} }
} }

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