public static byte[] ToPng(DeviceContextHolder holder, byte[] bytes, bool ignoreAlpha, Size?downsize, out Format format)
{
Viewport[] viewports = null;
try {
using (var stream = new System.IO.MemoryStream())
using (var effect = new EffectPpBasic())
using (var output = TargetResourceTexture.Create(Format.R8G8B8A8_UNorm))
using (var resource = ShaderResourceView.FromMemory(holder.Device, bytes)) {
var texture = (Texture2D)resource.Resource;
var loaded = texture.Description;
var width = downsize?.Width ?? loaded.Width;
var height = downsize?.Height ?? loaded.Height;
effect.Initialize(holder.Device);
format = loaded.Format;
output.Resize(holder, width, height, null);
holder.DeviceContext.ClearRenderTargetView(output.TargetView, Color.Transparent);
holder.DeviceContext.OutputMerger.SetTargets(output.TargetView);
viewports = holder.DeviceContext.Rasterizer.GetViewports();
holder.DeviceContext.Rasterizer.SetViewports(new Viewport(0, 0, width, height, 0f, 1f));
holder.DeviceContext.OutputMerger.BlendState = null;
holder.QuadBuffers.Prepare(holder.DeviceContext, effect.LayoutPT);
effect.FxInputMap.SetResource(resource);
holder.PrepareQuad(effect.LayoutPT);
if (ignoreAlpha)
{
effect.TechCopyNoAlpha.DrawAllPasses(holder.DeviceContext, 6);
}
else
{
effect.TechCopy.DrawAllPasses(holder.DeviceContext, 6);
}
Texture2D.ToStream(holder.DeviceContext, output.Texture, ImageFileFormat.Png, stream);
stream.Position = 0;
return(stream.GetBuffer());
}
} finally {
if (viewports != null)
{
holder.DeviceContext.Rasterizer.SetViewports(viewports);
}
}
}
protected override void InitializeInner()
{
_deferredLighting = DeviceContextHolder.GetEffect <EffectDeferredLight>();
_deferredResult = DeviceContextHolder.GetEffect <EffectDeferredResult>();
_ppBasic = DeviceContextHolder.GetEffect <EffectPpBasic>();
_gDepthBuffer = TargetResourceDepthTexture.Create();
_gBufferBase = TargetResourceTexture.Create(Format.R16G16B16A16_Float);
_gBufferNormal = TargetResourceTexture.Create(Format.R32G32B32A32_Float);
_gBufferMaps = TargetResourceTexture.Create(Format.R8G8B8A8_UNorm);
_temporaryDepthBuffer = TargetResourceDepthTexture.Create();
_temporaryBuffer0 = TargetResourceTexture.Create(Format.R16G16B16A16_Float);
_temporaryBuffer1 = TargetResourceTexture.Create(Format.R16G16B16A16_Float);
_temporaryBuffer2 = TargetResourceTexture.Create(Format.R16G16B16A16_Float);
_temporaryBuffer3 = TargetResourceTexture.Create(Format.R16G16B16A16_Float);
_outputBuffer = TargetResourceTexture.Create(Format.R8G8B8A8_UNorm);
_reflectionCubemap = new ReflectionCubemap(1024);
_reflectionCubemap.Initialize(DeviceContextHolder);
_sunShadows = new ShadowsDirectional(2048);
_sunShadows.Initialize(DeviceContextHolder);
}
public void OnInitialize(DeviceContextHolder holder)
{
_effect = holder.GetEffect <EffectPpBasic>();
}
