1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
#include "d/flag/flag_index.h"
u16 FlagIndex::calculateMask(s32 shift) {
return (2 << (shift & 0xF)) - 1;
}
void FlagIndex::doNothing(u32 unused) {}
FlagIndex::FlagIndex(u16 count, FlagDefinition *definitions) {
this->mDefinitionsCount = count;
this->mpDefinitions = definitions;
}
void FlagIndex::prepareIndexShiftMask(u16 counterIdx, u32 unused, u16 *indexPtr, u8 *shiftPtr, u16 *maskPtr) {
doNothing(counterIdx);
*indexPtr = mpDefinitions[counterIdx].mIndex;
*shiftPtr = mpDefinitions[counterIdx].mShiftMask >> 4;
*maskPtr = calculateMask(mpDefinitions[counterIdx].mShiftMask);
}
u16 FlagIndex::maskForIdx(u16 index, u16 flagCount) {
doNothing(index);
return calculateMask(mpDefinitions[index].mShiftMask);
}
u16 FlagIndex::getCounterOrFlag(u16 counterIdx, const u16 *dataPtr, u32 param4) {
u16 index = 0;
u8 shift = 0;
u16 mask = 0;
prepareIndexShiftMask(counterIdx, param4, &index, &shift, &mask);
return mask & (dataPtr[index] >> shift);
}
void FlagIndex::setCounterOrFlag(u16 counterIdx, u16 *dataPtr, u32 flagCount, u32 value) {
u16 index = 0;
u8 shift = 0;
u16 mask = 0;
prepareIndexShiftMask(counterIdx, flagCount, &index, &shift, &mask);
dataPtr[index] &= ~(mask << shift);
dataPtr[index] = (u16)(value << shift) | dataPtr[index];
}
u32 FlagIndex::checkFlagValid(u16 counterIdx, u32 flagCount) {
if (mpDefinitions == nullptr) {
return 0;
}
if (mDefinitionsCount <= counterIdx || mpDefinitions[counterIdx].mIndex == 0xFF) {
return 0;
} else {
return (int)mpDefinitions[counterIdx].mIndex < (int)flagCount;
}
}
|
