1 Buffer<float4> Buffer4F : register(t0); 2 Buffer<int4> Buffer4I : register(t0); 3 Buffer<uint4> Buffer4UI : register(t0); 4 5 struct VS_OUTPUT 6 { 7 float4 position : SV_Position; 8 uint index : TEXCOORD0; 9 uint slice : LAYER; 10 }; 11 12 struct GS_OUTPUT 13 { 14 float4 position : SV_Position; 15 uint index : TEXCOORD0; 16 uint slice : SV_RenderTargetArrayIndex; 17 }; 18 19 cbuffer BufferCopyParams : register(b0) 20 { 21 uint FirstPixelOffset; 22 uint PixelsPerRow; 23 uint RowStride; 24 uint RowsPerSlice; 25 float2 PositionOffset; 26 float2 PositionScale; 27 int2 TexLocationOffset; 28 int2 TexLocationScale; 29 } 30 31 void ComputePositionAndIndex(uint vertexID, out VS_OUTPUT outVertex) 32 { 33 uint PixelsPerSlice = PixelsPerRow * RowsPerSlice; 34 uint SliceStride = RowStride * RowsPerSlice; 35 36 uint slice = vertexID / PixelsPerSlice; 37 uint sliceOffset = slice * PixelsPerSlice; 38 uint row = (vertexID - sliceOffset) / PixelsPerRow; 39 uint col = vertexID - sliceOffset - (row * PixelsPerRow); 40 41 float2 coords = float2(float(col), float(row)); 42 43 outVertex.position = float4(PositionOffset + PositionScale * coords, 0.0f, 1.0f); 44 outVertex.index = FirstPixelOffset + slice * SliceStride + row * RowStride + col; 45 outVertex.slice = slice; 46 } 47 48 void VS_BufferToTexture(in uint vertexID : SV_VertexID, out VS_OUTPUT outVertex) 49 { 50 ComputePositionAndIndex(vertexID, outVertex); 51 } 52 53 [maxvertexcount(1)] 54 void GS_BufferToTexture(point VS_OUTPUT inVertex[1], inout PointStream<GS_OUTPUT> outStream) 55 { 56 GS_OUTPUT outVertex; 57 outVertex.position = inVertex[0].position; 58 outVertex.index = inVertex[0].index; 59 outVertex.slice = inVertex[0].slice; 60 outStream.Append(outVertex); 61 } 62 63 float4 PS_BufferToTexture_4F(in float4 inPosition : SV_Position, in uint inIndex : TEXCOORD0) : SV_Target 64 { 65 return Buffer4F.Load(inIndex); 66 } 67 68 int4 PS_BufferToTexture_4I(in float4 inPosition : SV_Position, in uint inIndex : TEXCOORD0) : SV_Target 69 { 70 return Buffer4I.Load(inIndex); 71 } 72 73 uint4 PS_BufferToTexture_4UI(in float4 inPosition : SV_Position, in uint inIndex : TEXCOORD0) : SV_Target 74 { 75 return Buffer4UI.Load(inIndex); 76 } 77
