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r4087, attempt #2: Fix "warning: iteration 1461 invokes undefined behavior [-Waggressive-loop-optimizations]" in initkpeg().

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git-svn-id: https://svn.eduke32.com/eduke32@4101 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
hendricks266 2013-10-13 06:17:41 +00:00
parent 2cabe1ec54
commit 9af453bb92
1 changed files with 7 additions and 6 deletions
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13
polymer/eduke32/build/src/kplib.c
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@ -1204,11 +1204,11 @@ static inline int32_t mulshr32(int32_t a, int32_t b)
static int32_t cosqr16[8] = //cosqr16[i] = ((cos(PI*i/16)*sqrt(2))<<24); static int32_t cosqr16[8] = //cosqr16[i] = ((cos(PI*i/16)*sqrt(2))<<24);
{23726566,23270667,21920489,19727919,16777216,13181774,9079764,4628823}; {23726566,23270667,21920489,19727919,16777216,13181774,9079764,4628823};
static int64_t crmul[4096], cbmul[4096]; static int32_t crmul[4096], cbmul[4096];
static void initkpeg() static void initkpeg()
{ {
int32_t i, x, y; int32_t i, j, x, y;
x = 0; //Back & forth diagonal pattern (aligning bytes for best compression) x = 0; //Back & forth diagonal pattern (aligning bytes for best compression)
for (i=0; i<16; i+=2) for (i=0; i<16; i+=2)
@ -1241,10 +1241,11 @@ static void initkpeg()
for (i=0; i<2048; i++) for (i=0; i<2048; i++)
{ {
crmul[(i<<1)+0] = (i-1024)*(int64_t)1470104; //1.402*1048576 j = i-1024;
crmul[(i<<1)+1] = (i-1024)*(int64_t)-748830; //-0.71414*1048576 crmul[(i<<1)+0] = j*1470104; //1.402*1048576
cbmul[(i<<1)+0] = (i-1024)*(int64_t)-360857; //-0.34414*1048576 crmul[(i<<1)+1] = j*-748830; //-0.71414*1048576
cbmul[(i<<1)+1] = (i-1024)*(int64_t)1858077; //1.772*1048576 cbmul[(i<<1)+0] = j*-360857; //-0.34414*1048576
cbmul[(i<<1)+1] = j*1858077; //1.772*1048576
} }
Bmemset((void *)&dct[10][0],0,64*2*sizeof(dct[0][0])); Bmemset((void *)&dct[10][0],0,64*2*sizeof(dct[0][0]));