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Add smoothstep tests (#309)
This PR adds tests for the smoothstep function. Adds float16 and float32 test files. Fixes #171
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‎test/Feature/HLSLLib/smoothstep.16.test

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#--- source.hlsl
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StructuredBuffer<half2> Min2D : register(t0);
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StructuredBuffer<half4> Min3D : register(t1);
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StructuredBuffer<half4> Min4D : register(t2);
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StructuredBuffer<half2> Max2D : register(t3);
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StructuredBuffer<half4> Max3D : register(t4);
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StructuredBuffer<half4> Max4D : register(t5);
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StructuredBuffer<half2> X2D : register(t6);
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StructuredBuffer<half4> X3D : register(t7);
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StructuredBuffer<half4> X4D : register(t8);
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RWStructuredBuffer<half2> Result2D : register(u9);
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RWStructuredBuffer<half4> Result3D : register(u10);
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RWStructuredBuffer<half4> Result4D : register(u11);
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[numthreads(1,1,1)]
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void main() {
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// 2D case
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half2 result2D = smoothstep(Min2D[0], Max2D[0], X2D[0]);
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Result2D[0] = result2D;
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half2 result2D_constant = smoothstep(half2(0.75, -0.5), half2(10.5, 24.5), half2(1.0, 23.0));
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Result2D[1] = result2D_constant;
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// we should also test cases where x is below and above the min and max bounds
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// below case:
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half2 result2D_below_min = smoothstep(Min2D[1], Max2D[1], X2D[1]);
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Result2D[2] = result2D_below_min;
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// above case:
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half2 result2D_above_max = smoothstep(Min2D[2], Max2D[2], X2D[2]);
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Result2D[3] = result2D_above_max;
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// 3D case, using half4 for alignment
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half4 result3D = half4(smoothstep(Min3D[0], Max3D[0], X3D[0]));
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Result3D[0] = result3D;
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half4 result3D_constant = half4(smoothstep(half3(0.75, -0.5, 1.0), half3(10.5, 24.5, 3.0), half3(1.0, 23.0, 3.0)), 0.0);
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Result3D[1] = result3D_constant;
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// 4D case
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half4 result4D = smoothstep(Min4D[0], Max4D[0], X4D[0]);
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Result4D[0] = result4D;
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half4 result4D_constant = smoothstep(half4(0.75, -0.5, 1.0, -2.0), half4(10.5, 24.5, 3.0, -0.125), half4(1.0, 23.0, 2.5, -0.25));
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Result4D[1] = result4D_constant;
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}
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//--- pipeline.yaml
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---
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Shaders:
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- Stage: Compute
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Entry: main
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DispatchSize: [1, 1, 1]
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Buffers:
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- Name: Min2D
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Format: Float16
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Stride: 4
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Data: [ 0x3a00, 0xb800, 0x3a00, 0xb800, 0x3a00, 0xb800, 0x0, 0x0 ]
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# 0.75, -0.5, 0.75, -0.5, 0.75, -0.5, 0.0, 0.0
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- Name: Min3D
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Format: Float16
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Stride: 8
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Data: [ 0x3a00, 0xb800, 0x3c00, 0x0]
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# 0.75, -0.5, 1.0, 0.0
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- Name: Min4D
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Format: Float16
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Stride: 8
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Data: [ 0x3a00, 0xb800, 0x3c00, 0xc000]
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# 0.75, -0.5, 1.0, -2.0
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- Name: Max2D
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Format: Float16
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Stride: 4
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Data: [ 0x4940, 0x4e20, 0x4940, 0x4e20, 0x4940, 0x4e20, 0x0, 0x0 ]
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# 10.5, 24.5, 10.5, 24.5, 10.5, 24.5, 0x0, 0x0
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- Name: Max3D
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Format: Float16
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Stride: 8
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Data: [ 0x4940, 0x4e20, 0x4200, 0x0 ]
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# 10.5, 24.5, 3.0, 0.0
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- Name: Max4D
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Format: Float16
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Stride: 8
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Data: [ 0x4940, 0x4e20, 0x4200, 0xb000 ]
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# 10.5, 24.5, 3.0, -0.125
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- Name: X2D
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Format: Float16
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Stride: 4
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Data: [ 0x3c00, 0x4dc0, 0xc580, 0xc580, 0x5004, 0x5004, 0x0, 0x0 ]
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# 1.0, 23.0, -5.5, -5.5, 32.125, 32.125, 0.0, 0.0
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- Name: X3D
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Format: Float16
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Stride: 8
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Data: [ 0x3c00, 0x4dc0, 0x4200, 0x0 ]
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# 1.0, 23.0, 3.0, 0.0
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- Name: X4D
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Format: Float16
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Stride: 8
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Data: [ 0x3c00, 0x4dc0, 0x4100, 0xb400 ]
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# 1.0, 23.0, 2.5, -0.25
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- Name: Result2D
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Format: Float16
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Stride: 4
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ZeroInitSize: 16
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- Name: ExpectedResult2D
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Format: Float16
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Stride: 4
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Data: [ 0x17F0, 0x3BEA, 0x17F0, 0x3BEA, 0x0, 0x0, 0x3C00, 0x3C00 ]
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# 0.0019378662, 0.9892578, 0.0019378662, 0.9892578, 0.0, 0.0, 1.0, 1.0
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- Name: Result3D
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Format: Float16
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Stride: 8
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ZeroInitSize: 16
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- Name: ExpectedResult3D
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Format: Float16
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Stride: 8
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Data: [ 0x17F0, 0x3BEA, 0x3C00, 0x0, 0x17F0, 0x3BEA, 0x3C00, 0x0]
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# 0.0019378662, 0.9892578, 1.0, 0.0, 0.0019378662, 0.9892578, 1.0, 0.0
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- Name: Result4D
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Format: Float16
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Stride: 8
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ZeroInitSize: 16
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- Name: ExpectedResult4D
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Format: Float16
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Stride: 8
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Data: [ 0x17F0, 0x3BEA, 0x3AC0, 0x3BE6, 0x17F0, 0x3BEA, 0x3AC0, 0x3BE6 ]
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# 0.0019378662, 0.9892578, 0.84375, 0.9873047, 0.0019378662, 0.9892578, 0.84375, 0.9873047
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Results:
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- Result: CheckResult2D
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Rule: BufferFloatULP
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ULPT: 2
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Actual: Result2D
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Expected: ExpectedResult2D
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- Result: CheckResult3D
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Rule: BufferFloatULP
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ULPT: 2
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Actual: Result3D
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Expected: ExpectedResult3D
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- Result: CheckResult4D
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Rule: BufferFloatULP
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ULPT: 2
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Actual: Result4D
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Expected: ExpectedResult4D
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DescriptorSets:
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- Resources:
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- Name: Min2D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 0
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Space: 0
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VulkanBinding:
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Binding: 0
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- Name: Min3D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 1
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Space: 0
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VulkanBinding:
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Binding: 1
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- Name: Min4D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 2
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Space: 0
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VulkanBinding:
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Binding: 2
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- Name: Max2D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 3
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Space: 0
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VulkanBinding:
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Binding: 3
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- Name: Max3D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 4
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Space: 0
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VulkanBinding:
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Binding: 4
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- Name: Max4D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 5
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Space: 0
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VulkanBinding:
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Binding: 5
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- Name: X2D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 6
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Space: 0
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VulkanBinding:
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Binding: 6
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- Name: X3D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 7
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Space: 0
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VulkanBinding:
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Binding: 7
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- Name: X4D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 8
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Space: 0
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VulkanBinding:
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Binding: 8
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- Name: Result2D
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Kind: RWStructuredBuffer
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DirectXBinding:
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Register: 9
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Space: 0
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VulkanBinding:
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Binding: 9
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- Name: Result3D
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Kind: RWStructuredBuffer
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DirectXBinding:
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Register: 10
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Space: 0
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VulkanBinding:
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Binding: 10
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- Name: Result4D
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Kind: RWStructuredBuffer
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DirectXBinding:
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Register: 11
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Space: 0
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VulkanBinding:
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Binding: 11
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...
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#--- end
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# REQUIRES: Half
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# RUN: split-file %s %t
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# RUN: %dxc_target -T cs_6_5 -enable-16bit-types -Fo %t.o %t/source.hlsl
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# RUN: %offloader %t/pipeline.yaml %t.o

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