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Fix UNorm/SNorm post-processing on mesh data decode

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baldurk
2019-05-24 13:31:48 +01:00
parent f6a2bd345c
commit ce8fcc1a16
1 changed files with 7 additions and 5 deletions
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util/test/rdtest/analyse.py
+7 -5
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@@ -177,12 +177,14 @@ def unpack_data(fmt: rd.ResourceFormat, data: bytes, data_offset: int):
# If the format needs post-processing such as normalisation, do that now
if fmt.compType == rd.CompType.UNorm:
divisor = float((1 << fmt.compByteWidth) - 1)
value = tuple(float(value[i]) / divisor for i in value)
divisor = float((1 << (fmt.compByteWidth*8)) - 1)
value = tuple(float(i) / divisor for i in value)
elif fmt.compType == rd.CompType.SNorm:
max_neg = -(1 << (fmt.compByteWidth - 1))
divisor = float(-(max_neg-1))
value = tuple((float(value[i]) if (value[i] == max_neg) else (float(value[i]) / divisor)) for i in value)
max_neg = -(1 << (fmt.compByteWidth*8 - 1))
divisor = -float(max_neg+1)
value = tuple(-1.0 if (i == max_neg) else float(i / divisor) for i in value)
elif fmt.compType == rd.CompType.UScaled or fmt.compType == rd.CompType.SScaled:
value = tuple(float(i) for i in value)
# If the format is BGRA, swap the two components
if fmt.BGRAOrder():