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Merge pull request #10 from DizzyEggg/compresss

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lucky's suggestions
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hedara90 2024-12-11 17:01:21 +01:00 committed by GitHub
commit fa29eac72e
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1 changed files with 13 additions and 6 deletions
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19
src/decompress.c
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@ -354,7 +354,10 @@ __attribute__((target("arm"))) __attribute__((noinline)) __attribute__((optimize
u32 readIndex = sReadIndex;
u32 currBits = data[readIndex];
u32 bitIndex = sBitIndex;
for (u32 currSym = 0; currSym < stuff->count; currSym++)
u8 * resultVec = (u8*)(stuff->resultVec);
u8 * resultVecEnd = &resultVec[stuff->count];
do
{
u32 symbol = 0;
for (u32 currNibble = 0; currNibble < 2; currNibble++)
@ -362,6 +365,7 @@ __attribute__((target("arm"))) __attribute__((noinline)) __attribute__((optimize
symbol += stuff->symbolTable[sCurrState] << (currNibble*4);
u32 currK = stuff->ykTable[sCurrState].kVal;
u32 nextState = stuff->ykTable[sCurrState].yVal;
//nextState += (currBits >> bitIndex) & (0xff >> (8-currK));
nextState += (currBits >> bitIndex) & maskTable[currK];
if (bitIndex + currK < 32)
{
@ -383,8 +387,8 @@ __attribute__((target("arm"))) __attribute__((noinline)) __attribute__((optimize
}
sCurrState = nextState-64;
}
((u8*)(stuff->resultVec))[currSym] = symbol;
}
*resultVec++ = symbol;
} while (resultVec < resultVecEnd);
sBitIndex = bitIndex;
sReadIndex = readIndex;
@ -475,7 +479,10 @@ __attribute__((target("arm"))) __attribute__((noinline)) __attribute__((optimize
u32 currBits = data[readIndex];
u32 prevSymbol = 0;
u32 bitIndex = sBitIndex;
for (u32 currSym = 0; currSym < stuff->count; currSym++)
u16 * resultVec = (u16*)(stuff->resultVec);
u16 * resultVecEnd = &resultVec[stuff->count];
do
{
u32 symbol = 0;
for (u32 currNibble = 0; currNibble < 4; currNibble++)
@ -506,8 +513,8 @@ __attribute__((target("arm"))) __attribute__((noinline)) __attribute__((optimize
}
sCurrState = nextState - 64;
}
((u16*)(stuff->resultVec))[currSym] = symbol;
}
*resultVec++ = symbol;
} while (resultVec < resultVecEnd);
sBitIndex = bitIndex;
sReadIndex = readIndex;
}