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Use min/max to clamp the IMA4 sample and index values

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This commit is contained in:
Chris Robinson
2010-12-01 14:07:21 -08:00
parent e3afc3587e
commit 7f5814c4d8
1 changed files with 6 additions and 6 deletions
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OpenAL32/alBuffer.c
+6 -6
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@@ -870,8 +870,8 @@ static void DecodeIMA4Block(ALshort *dst, const ALubyte *IMAData, ALint numchans
Index[c] |= *(IMAData++) << 8;
Index[c] = (Index[c]^0x8000) - 32768;
Index[c] = ((Index[c]<0) ? 0 : Index[c]);
Index[c] = ((Index[c]>88) ? 88 : Index[c]);
Index[c] = max(0, Index[c]);
Index[c] = min(Index[c], 88);
dst[c] = Sample[c];
}
@@ -895,11 +895,11 @@ static void DecodeIMA4Block(ALshort *dst, const ALubyte *IMAData, ALint numchans
g_IMACodeword_4[IMACode[c]&15] / 8;
Index[c] += g_IMAIndex_adjust_4[IMACode[c]&15];
if(Sample[c] < -32768) Sample[c] = -32768;
else if(Sample[c] > 32767) Sample[c] = 32767;
Sample[c] = max(-32768, Sample[c]);
Sample[c] = min(Sample[c], 32767);
if(Index[c] < 0) Index[c] = 0;
else if(Index[c] > 88) Index[c] = 88;
Index[c] = max(0, Index[c]);
Index[c] = min(Index[c], 88);
dst[j*numchans + c] = Sample[c];
IMACode[c] >>= 4;