Refactor folder structure

src/Runtime/Ghost.Graphics/Shaders/Includes/Common.hlsl

@@ -0,0 +1,99 @@
+#ifndef BUILTIN_COMMON_HLSL
+#define BUILTIN_COMMON_HLSL
+
+struct Vertex
+{
+    float4 position;
+    float4 normal;
+    float4 tangent;
+    float4 uv;
+    float4 color;
+};
+
+// Resource descriptor heap definitions
+
+#define GLOBAL_TEXTURE2D_HEAP ResourceDescriptorHeap
+#define GLOBAL_TEXTURE3D_HEAP ResourceDescriptorHeap
+#define GLOBAL_TEXTURECUBE_HEAP ResourceDescriptorHeap
+#define GLOBAL_TEXTURE2D_ARRAY_HEAP ResourceDescriptorHeap
+#define GLOBAL_TEXTURECUBE_ARRAY_HEAP ResourceDescriptorHeap
+#define GLOBAL_BUFFER_HEAP ResourceDescriptorHeap
+#define GLOBAL_SAMPLER_HEAP SamplerDescriptorHeap
+
+// Bindless resource type definitions
+
+#define TEXTURE2D uint
+#define TEXTURE3D uint
+#define TEXTURECUBE uint
+#define TEXTURE2D_ARRAY uint
+#define TEXTURECUBE_ARRAY uint
+
+#define SAMPLER uint
+
+#define STRUCT_BUFFER uint
+#define BYTE_ADDRESS_BUFFER uint
+
+
+// Texture and sampler access macros
+
+#define GET_TEXTURE2D(id) GLOBAL_TEXTURE2D_HEAP[id]
+#define GET_TEXTURE2D_ARRAY(id) GLOBAL_TEXTURE2D_ARRAY_HEAP[id]
+#define GET_TEXTURE3D(id) GLOBAL_TEXTURE3D_HEAP[id]
+#define GET_TEXTURECUBE(id) GLOBAL_TEXTURECUBE_HEAP[id]
+#define GET_TEXTURECUBE_ARRAY(id) GLOBAL_TEXTURECUBE_ARRAY_HEAP[id]
+#define GET_BUFFER(id) GLOBAL_BUFFER_HEAP[id]
+#define GET_SAMPLER(id) GLOBAL_SAMPLER_HEAP[id]
+
+#define SAMPLE_TEXTURE2D(texId, sampId, uv) SampleTexture2D(texId, sampId, uv)
+#define SAMPLE_TEXTURE2D_LEVEL(texId, sampId, uv, level) SampleTexture2DLevel(texId, sampId, uv, level)
+#define SAMPLE_TEXTURE2D_ARRAY(texId, sampId, uvw) SampleTextureArray(texId, sampId, uvw)
+
+
+#define OUTPUT_TRIANGLE_TOPOLOGY outputtopology("triangle")
+#define OUTPUT_LINE_TOPOLOGY outputtopology("line")
+
+
+#define ZERO_INIT(T) (T)0
+
+
+static inline float4 SampleTexture2D(uint texId, uint sampId, float2 uv)
+{
+    Texture2D tex = GET_TEXTURE2D(texId);
+    SamplerState samp = GET_SAMPLER(sampId);
+    return tex.Sample(samp, uv);
+}
+
+static inline float4 SampleTexture2DLevel(uint texId, uint sampId, float2 uv, float level)
+{
+    Texture2D tex = GET_TEXTURE2D(texId);
+    SamplerState samp = GET_SAMPLER(sampId);
+    return tex.SampleLevel(samp, uv, level);
+}
+
+static inline float4 SampleTextureArray(uint texId, uint sampId, float3 uvw)
+{
+    Texture2DArray tex = GET_TEXTURE2D_ARRAY(texId);
+    SamplerState samp = GET_SAMPLER(sampId);
+    return tex.Sample(samp, uvw);
+}
+
+static inline Vertex LoadVertexData(uint vertexID, uint groupID, BYTE_ADDRESS_BUFFER vertexBuffer, BYTE_ADDRESS_BUFFER indexBuffer)
+{
+    ByteAddressBuffer vertices = GET_BUFFER(vertexBuffer);
+    ByteAddressBuffer indices = GET_BUFFER(indexBuffer);
+
+    // Compute the triangle’s vertex indices
+    uint indexOffset = (groupID * 3 + vertexID) * 4; // uint32 index
+    uint vertexIndex = indices.Load(indexOffset);
+
+    return vertices.Load<Vertex>(vertexIndex * sizeof(Vertex));
+}
+
+template<typename T>
+static inline T LoadData(BYTE_ADDRESS_BUFFER buffer, uint index)
+{
+    ByteAddressBuffer buf = GET_BUFFER(buffer);
+    return buf.Load<T>(index * sizeof(T));
+}
+
+#endif // BUILTIN_COMMON_HLSL