Viewing file:  pr64829.c (1.16 KB) -rw-r--r--
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/* { dg-do compile } */
typedef unsigned char Uint8;
typedef int Sint32;
typedef unsigned int Uint32;
typedef union RMColorDataRef
{
Uint8* data8;
} RMColorDataRef;
typedef struct RMColorData
{
Uint32 dataCount;
RMColorDataRef dataRef;
} RMColorData;
typedef struct RMColorTable
{
Uint8 dataCompsOut;
RMColorDataRef dataRef;
} RMColorTable;
int fail ( const RMColorData * pInColor,
RMColorData * pOutColor,
const RMColorTable * pColorTable )
{
Uint32 comp;
Uint8 nCompOut;
Sint32 result;
Uint32 interpFrac1, interpFrac2, interpFrac3;
Sint32 val0, val1, val2, val3;
Uint8 * pOut;
const Uint8 * pClutData;
const Uint8 * pCornerPoint0;
Uint8 lastOut[((8) > (4) ? (8) : (4))];
pOut = pOutColor->dataRef.data8;
pClutData = pColorTable->dataRef.data8;
nCompOut = pColorTable->dataCompsOut;
pCornerPoint0 = pClutData;
for (comp = 0; comp < nCompOut; comp++)
{
val0 = *pCornerPoint0++;
result = val0 << 4;
result += (val1 - val0) * interpFrac1;
result += (val2 - val1) * interpFrac2;
result += (val3 - val2) * interpFrac3;
*pOut++ = lastOut[comp] = (Uint8)(result >> 4);
}
return (0);
}
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