5742047b24
Add spvQuantizeToF16() family of synthetic functions to convert from float to half and back again, and add function attribute [[clang::optnone]] to honor infinities during conversions. Adjust SPIRV-Cross unit test reference shaders to accommodate these changes.
44 lines
842 B
Plaintext
44 lines
842 B
Plaintext
#pragma clang diagnostic ignored "-Wmissing-prototypes"
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#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct SSBO0
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{
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float scalar;
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float2 vec2_val;
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float3 vec3_val;
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float4 vec4_val;
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};
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[[clang::optnone]] float spvQuantizeToF16(float val)
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{
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return float(half(val));
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}
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[[clang::optnone]] float2 spvQuantize2ToF16(float2 val)
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{
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return float2(half2(val));
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}
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[[clang::optnone]] float3 spvQuantize3ToF16(float3 val)
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{
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return float3(half3(val));
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}
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[[clang::optnone]] float4 spvQuantize4ToF16(float4 val)
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{
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return float4(half4(val));
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}
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kernel void main0(device SSBO0& _4 [[buffer(0)]])
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{
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_4.scalar = spvQuantizeToF16(_4.scalar);
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_4.vec2_val = spvQuantize2ToF16(_4.vec2_val);
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_4.vec3_val = spvQuantize3ToF16(_4.vec3_val);
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_4.vec4_val = spvQuantize4ToF16(_4.vec4_val);
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}
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