public GLWpfControlRenderer(GLWpfControlSettings settings)
{
_context = new DxGlContext(settings);
}
public DxGLFramebuffer([NotNull] DxGlContext context, int width, int height, double dpiScaleX, double dpiScaleY)
{
DxGlContext = context;
Width = width;
Height = height;
FramebufferWidth = (int)Math.Ceiling(width * dpiScaleX);
FramebufferHeight = (int)Math.Ceiling(height * dpiScaleY);
var dxSharedHandle = IntPtr.Zero; // Unused windows-vista legacy sharing handle. Must always be null.
DXInterop.CreateRenderTarget(
context.DxDeviceHandle,
FramebufferWidth,
FramebufferHeight,
Format.X8R8G8B8,// this is like A8 R8 G8 B8, but avoids issues with Gamma correction being applied twice.
MultisampleType.None,
0,
false,
out var dxRenderTargetHandle,
ref dxSharedHandle);
DxRenderTargetHandle = dxRenderTargetHandle;
Wgl.DXSetResourceShareHandleNV(dxRenderTargetHandle, dxSharedHandle);
GLFramebufferHandle = GL.GenFramebuffer();
GLSharedTextureHandle = GL.GenTexture();
var genHandle = Wgl.DXRegisterObjectNV(
context.GlDeviceHandle,
dxRenderTargetHandle,
(uint)GLSharedTextureHandle,
(uint)TextureTarget.Texture2D,
WGL_NV_DX_interop.AccessReadWrite);
DxInteropRegisteredHandle = genHandle;
GL.BindFramebuffer(FramebufferTarget.Framebuffer, GLFramebufferHandle);
GL.FramebufferTexture2D(
FramebufferTarget.Framebuffer,
FramebufferAttachment.ColorAttachment0,
TextureTarget.Texture2D,
GLSharedTextureHandle, 0);
GLDepthRenderBufferHandle = GL.GenRenderbuffer();
GL.BindRenderbuffer(RenderbufferTarget.Renderbuffer, GLDepthRenderBufferHandle);
GL.RenderbufferStorage(RenderbufferTarget.Renderbuffer, RenderbufferStorage.DepthComponent24, FramebufferWidth, FramebufferHeight);
GL.FramebufferRenderbuffer(
FramebufferTarget.Framebuffer,
FramebufferAttachment.DepthAttachment,
RenderbufferTarget.Renderbuffer,
GLDepthRenderBufferHandle);
GL.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
D3dImage = new D3DImage(96.0 * dpiScaleX, 96.0 * dpiScaleY);
TranslateTransform = new TranslateTransform(0, height);
FlipYTransform = new ScaleTransform(1, -1);
}