Commented out XR code for Switch platform. Added Switch API header.

Author: kaychang-unity

PostProcessing/Shaders/API/Switch.hlsl

@@ -0,0 +1,51 @@
+#define UNITY_UV_STARTS_AT_TOP 1
+#define UNITY_REVERSED_Z 1
+#define UNITY_GATHER_SUPPORTED (SHADER_TARGET >= 50)
+
+#define TEXTURE2D_SAMPLER2D(textureName, samplerName) Texture2D textureName; SamplerState samplerName
+#define TEXTURE3D_SAMPLER3D(textureName, samplerName) Texture3D textureName; SamplerState samplerName
+
+#define TEXTURE2D(textureName) Texture2D textureName
+#define SAMPLER2D(samplerName) SamplerState samplerName
+
+#define TEXTURE3D(textureName) Texture3D textureName
+#define SAMPLER3D(samplerName) SamplerState samplerName
+
+#define TEXTURE2D_ARGS(textureName, samplerName) Texture2D textureName, SamplerState samplerName
+#define TEXTURE2D_PARAM(textureName, samplerName) textureName, samplerName
+
+#define TEXTURE3D_ARGS(textureName, samplerName) Texture3D textureName, SamplerState samplerName
+#define TEXTURE3D_PARAM(textureName, samplerName) textureName, samplerName
+
+#define SAMPLE_TEXTURE2D(textureName, samplerName, coord2) textureName.Sample(samplerName, coord2)
+#define SAMPLE_TEXTURE2D_LOD(textureName, samplerName, coord2, lod) textureName.SampleLevel(samplerName, coord2, lod)
+
+#define SAMPLE_TEXTURE3D(textureName, samplerName, coord3) textureName.Sample(samplerName, coord3)
+
+#define LOAD_TEXTURE2D(textureName, texelSize, icoord2) textureName.Load(int3(icoord2, 0))
+#define LOAD_TEXTURE2D_LOD(textureName, texelSize, icoord2) textureName.Load(int3(icoord2, lod))
+
+#define GATHER_TEXTURE2D(textureName, samplerName, coord2) textureName.Gather(samplerName, coord2)
+#define GATHER_RED_TEXTURE2D(textureName, samplerName, coord2) textureName.GatherRed(samplerName, coord2)
+#define GATHER_GREEN_TEXTURE2D(textureName, samplerName, coord2) textureName.GatherGreen(samplerName, coord2)
+#define GATHER_BLUE_TEXTURE2D(textureName, samplerName, coord2) textureName.GatherBlue(samplerName, coord2)
+
+#define SAMPLE_DEPTH_TEXTURE(textureName, samplerName, coord2) SAMPLE_TEXTURE2D(textureName, samplerName, coord2).r
+#define SAMPLE_DEPTH_TEXTURE_LOD(textureName, samplerName, coord2, lod) SAMPLE_TEXTURE2D_LOD(textureName, samplerName, coord2, lod).r
+
+#define UNITY_BRANCH    [branch]
+#define UNITY_FLATTEN   [flatten]
+#define UNITY_UNROLL    [unroll]
+#define UNITY_LOOP      [loop]
+#define UNITY_FASTOPT   [fastopt]
+
+#define CBUFFER_START(name) cbuffer name {
+#define CBUFFER_END };
+
+#if UNITY_GATHER_SUPPORTED
+    #define FXAA_HLSL_5 1
+    #define SMAA_HLSL_4_1 1
+#else
+    #define FXAA_HLSL_4 1
+    #define SMAA_HLSL_4 1
+#endif