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Correctly round generated SNORM data in texture zoo tests

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baldurk
2022-12-15 15:19:41 +00:00
parent 843797846b
commit 0a0fe7b021
1 changed files with 2 additions and 2 deletions
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util/test/demos/texture_zoo.cpp
+2 -2
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@@ -75,7 +75,7 @@ void MakePixel(byte *data, const TexConfig &cfg, uint32_t x, uint32_t y, uint32_
else if(cfg.data == DataType::UNorm)
h = uint16_t(f * 0xffff);
else if(cfg.data == DataType::SNorm)
h = int16_t(f * 0x7fff);
h = f < 0 ? int16_t(roundf(f * 0x8000)) : int16_t(roundf(f * 0x7fff));
memcpy(data, &h, cfg.componentBytes);
}
else if(cfg.componentBytes == 1)
@@ -84,7 +84,7 @@ void MakePixel(byte *data, const TexConfig &cfg, uint32_t x, uint32_t y, uint32_
if(cfg.data == DataType::UNorm)
b = uint8_t(f * 0xff);
else if(cfg.data == DataType::SNorm)
b = int8_t(f * 0x7f);
b = f < 0 ? int8_t(roundf(f * 0x80)) : int8_t(roundf(f * 0x7f));
memcpy(data, &b, cfg.componentBytes);
}
else