public void ProcessFrame(ref FrameData data, DeviceContextProxy context)
{
if (sharedTexture == null || sharedDescription.Width != data.Frame.Description.Width || sharedDescription.Height != data.Frame.Description.Height)
{
RemoveAndDispose(ref sharedTexture);
sharedDescription = new Texture2DDescription()
{
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.None, Format = data.Frame.Description.Format, Width = data.Frame.Description.Width, Height = data.Frame.Description.Height,
MipLevels = 1, Usage = ResourceUsage.Default, SampleDescription = new SampleDescription(1, 0), OptionFlags = ResourceOptionFlags.None, ArraySize = 1
};
sharedTexture = Collect(new Texture2D(context, sharedDescription));
}
context.CopyResource(data.Frame, sharedTexture);
}
protected override void OnRender(RenderContext context, DeviceContextProxy deviceContext)
{
var buffer = context.RenderHost.RenderBuffer;
#region Initialize textures
if (offScreenRenderTargets.Count == 0 ||
width != (int)(context.ActualWidth) ||
height != (int)(context.ActualHeight))
{
width = (int)(context.ActualWidth);
height = (int)(context.ActualHeight);
for (int i = 0; i < offScreenRenderTargets.Count; ++i)
{
var target = offScreenRenderTargets[i];
RemoveAndDispose(ref target);
}
offScreenRenderTargets.Clear();
int w = width;
int h = height;
int count = 0;
while (w > 1 && h > 1 && count < Math.Max(0, MaximumDownSamplingStep) + 1)
{
var target = Collect(new PostEffectBlurCore(global::SharpDX.DXGI.Format.B8G8R8A8_UNorm, blurPassVertical, blurPassHorizontal, textureSlot, samplerSlot,
DefaultSamplers.LinearSamplerClampAni1, EffectTechnique.EffectsManager));
target.Resize(Device, w, h);
offScreenRenderTargets.Add(target);
w >>= 2;
h >>= 2;
++count;
}
//Skip this frame to avoid performance hit due to texture creation
InvalidateRenderer();
return;
}
#endregion
#region Render objects onto offscreen texture
using (var resource2 = offScreenRenderTargets[0].CurrentRTV.Resource)
{
deviceContext.CopyResource(buffer.FullResPPBuffer.CurrentTexture, resource2);
}
#endregion
#region Do Bloom Pass
modelCB.Upload(deviceContext, ref modelStruct);
//Extract bloom samples
BindTarget(null, offScreenRenderTargets[0].NextRTV, deviceContext, offScreenRenderTargets[0].Width, offScreenRenderTargets[0].Height, false);
screenQuadPass.PixelShader.BindTexture(deviceContext, textureSlot, offScreenRenderTargets[0].CurrentSRV);
screenQuadPass.PixelShader.BindSampler(deviceContext, samplerSlot, sampler);
screenQuadPass.BindShader(deviceContext);
screenQuadPass.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
deviceContext.Draw(4, 0);
offScreenRenderTargets[0].SwapTargets();
// Down sampling
screenQuadCopy.BindShader(deviceContext);
screenQuadCopy.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
for (int i = 1; i < offScreenRenderTargets.Count; ++i)
{
BindTarget(null, offScreenRenderTargets[i].CurrentRTV, deviceContext, offScreenRenderTargets[i].Width, offScreenRenderTargets[i].Height, false);
screenQuadCopy.PixelShader.BindTexture(deviceContext, textureSlot, offScreenRenderTargets[i - 1].CurrentSRV);
deviceContext.Draw(4, 0);
}
for (int i = offScreenRenderTargets.Count - 1; i >= 1; --i)
{
//Run blur pass
offScreenRenderTargets[i].Run(deviceContext, NumberOfBlurPass);
//Up sampling
screenOutlinePass.BindShader(deviceContext);
screenOutlinePass.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
BindTarget(null, offScreenRenderTargets[i - 1].CurrentRTV, deviceContext, offScreenRenderTargets[i - 1].Width, offScreenRenderTargets[i - 1].Height, false);
screenOutlinePass.PixelShader.BindTexture(deviceContext, textureSlot, offScreenRenderTargets[i].CurrentSRV);
deviceContext.Draw(4, 0);
}
offScreenRenderTargets[0].Run(deviceContext, NumberOfBlurPass);
#endregion
#region Draw outline onto original target
BindTarget(null, buffer.FullResPPBuffer.CurrentRTV, deviceContext, buffer.TargetWidth, buffer.TargetHeight, false);
screenOutlinePass.PixelShader.BindTexture(deviceContext, textureSlot, offScreenRenderTargets[0].CurrentSRV);
screenOutlinePass.BindShader(deviceContext);
screenOutlinePass.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
deviceContext.Draw(4, 0);
screenOutlinePass.PixelShader.BindTexture(deviceContext, textureSlot, null);
#endregion
}