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Use macro for extracting swizzle components

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baldurk
2016-07-08 16:16:01 +03:00
parent 37811402b3
commit ba9321e796
1 changed files with 4 additions and 11 deletions
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renderdoc/driver/d3d12/d3d12_common.cpp
+4 -11
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@@ -67,20 +67,13 @@ string ToStrHelper<false, D3D12ComponentMapping>::Get(const D3D12ComponentMappin
{
string ret;
// value should always be <= 5, see D3D12_SHADER_COMPONENT_MAPPING
const char mapping[] = {'R', 'G', 'B', 'A', '0', '1', '?', '?'};
uint32_t swizzle = (uint32_t)el;
uint32_t shift = 0;
uint32_t mask = D3D12_SHADER_COMPONENT_MAPPING_MASK;
for(int i = 0; i < 4; i++)
{
// value should always be <= 5, see D3D12_SHADER_COMPONENT_MAPPING
char mapping[] = {'R', 'G', 'B', 'A', '0', '1', '?', '?'};
ret += mapping[(swizzle & mask) >> shift];
shift += D3D12_SHADER_COMPONENT_MAPPING_SHIFT;
mask <<= D3D12_SHADER_COMPONENT_MAPPING_SHIFT;
}
ret += mapping[D3D12_DECODE_SHADER_4_COMPONENT_MAPPING(swizzle, i)];
return ret;
}