HLSL: Add CalculateLevelOfDetail, and unimplemented errors for *Unclamped and GetSamplePosition

Test/hlsl.calculatelod.dx10.frag

@@ -0,0 +1,44 @@
+SamplerState       g_sSamp : register(s0);
+
+Texture1DArray          g_tTex1df4a : register(t1);
+
+uniform Texture1DArray <float4> g_tTex1df4 : register(t0);
+Texture1DArray <int4>   g_tTex1di4a;
+Texture1DArray <uint4>  g_tTex1du4a;
+
+Texture2DArray <float4> g_tTex2df4a;
+Texture2DArray <int4>   g_tTex2di4a;
+Texture2DArray <uint4>  g_tTex2du4a;
+
+TextureCubeArray <float4> g_tTexcdf4a;
+TextureCubeArray <int4>   g_tTexcdi4a;
+TextureCubeArray <uint4>  g_tTexcdu4a;
+
+struct PS_OUTPUT
+{
+    float4 Color : SV_Target0;
+    float  Depth : SV_Depth;
+};
+
+PS_OUTPUT main()
+{
+   PS_OUTPUT psout;
+
+   // LOD queries do not pass array level in coordinate.
+   float txval10 = g_tTex1df4a . CalculateLevelOfDetail(g_sSamp, 0.1);
+   float txval11 = g_tTex1di4a . CalculateLevelOfDetail(g_sSamp, 0.2);
+   float txval12 = g_tTex1du4a . CalculateLevelOfDetail(g_sSamp, 0.3);
+
+   float txval20 = g_tTex2df4a . CalculateLevelOfDetail(g_sSamp, float2(0.1, 0.2));
+   float txval21 = g_tTex2di4a . CalculateLevelOfDetail(g_sSamp, float2(0.3, 0.4));
+   float txval22 = g_tTex2du4a . CalculateLevelOfDetail(g_sSamp, float2(0.5, 0.6));
+
+   float txval40 = g_tTexcdf4a . CalculateLevelOfDetail(g_sSamp, float3(0.1, 0.2, 0.3));
+   float txval41 = g_tTexcdi4a . CalculateLevelOfDetail(g_sSamp, float3(0.4, 0.5, 0.6));
+   float txval42 = g_tTexcdu4a . CalculateLevelOfDetail(g_sSamp, float3(0.7, 0.8, 0.9));
+
+   psout.Color = 1.0;
+   psout.Depth = 1.0;
+
+   return psout;
+}