mirror of https://github.com/AxioDL/boo.git
19 lines
368 B
C++
19 lines
368 B
C++
#include "Common.hpp"
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#include <cmath>
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#include <numeric>
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#include <thread>
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namespace boo {
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void UpdateGammaLUT(ITextureD* tex, float gamma) {
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void* data = tex->map(65536 * 2);
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for (int i = 0; i < 65536; ++i) {
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float level = std::pow(i / 65535.f, gamma);
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reinterpret_cast<uint16_t*>(data)[i] = level * 65535.f;
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}
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tex->unmap();
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}
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} // namespace boo
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