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Fix two bugs that took a surprisingly long time to find.

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This commit is contained in:
Pavel Krajcevski 2012-10-21 14:07:23 -04:00
parent 3bc9510996
commit cc0d75400a
1 changed files with 4 additions and 2 deletions
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6
BPTCEncoder/src/BC7Compressor.cpp
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@ -679,6 +679,7 @@ double BC7CompressionMode::OptimizeEndpointsForCluster(const RGBACluster &cluste
bestPbitCombo = nPbitCombo; bestPbitCombo = nPbitCombo;
bestError = error; bestError = error;
lastVisitedState = 0;
visitedStates[lastVisitedState].p1 = np1; visitedStates[lastVisitedState].p1 = np1;
visitedStates[lastVisitedState].p2 = np2; visitedStates[lastVisitedState].p2 = np2;
visitedStates[lastVisitedState].pBitCombo = nPbitCombo; visitedStates[lastVisitedState].pBitCombo = nPbitCombo;
@ -925,7 +926,8 @@ double BC7CompressionMode::CompressCluster(const RGBACluster &cluster, RGBAVecto
const uint8 a2b = ::QuantizeChannel(uint8(a2), (((char)0x80) >> (GetAlphaChannelPrecision() - 1))); const uint8 a2b = ::QuantizeChannel(uint8(a2), (((char)0x80) >> (GetAlphaChannelPrecision() - 1)));
// Compute error // Compute error
for(int i = 0; i < kMaxNumDataPoints; i++) { alphaError = 0.0;
for(int i = 0; i < kMaxNumDataPoints; i++) {
uint8 val = uint8(alphaVals[i]); uint8 val = uint8(alphaVals[i]);
@ -1737,7 +1739,7 @@ namespace BC7C
error += 1.0; error += 1.0;
} }
#else #else
error += c.QuantizedError(Min, Max, 2, 0xFFFFFFFF, RGBAVector(w[0], w[1], w[2], w[3])); error += c.QuantizedError(Min, Max, 4, 0xFFFFFFFF, RGBAVector(w[0], w[1], w[2], w[3]));
#endif #endif
return error; return error;
} }