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JpegUtils_ProcessHuffmanTable

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This commit is contained in:
alexanderkarlis 2026-02-27 14:44:05 -05:00
parent 67269da1f7
commit b8e8c5caba
3 changed files with 15 additions and 34 deletions
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2
src/3FB0.c
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@ -160,7 +160,7 @@ s32 func_80003680(u32 addr, s32 arg1, u8* arg2) {
func_800033C8(&sp300, arg2);
JpegUtils_ProcessQuantizationTable(sp300.quantization_table, sp200, 2);
func_8000C02C(sp300.huffman_table, spB0, temp_s3, temp_s0, 4);
JpegUtils_ProcessHuffmanTable(sp300.huffman_table, spB0, temp_s3, temp_s0, 4);
Util_Free(temp_s0);
Util_Free(temp_s3);

45
src/C970.c
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@ -117,43 +117,24 @@ s16 func_8000BF70(u8* arg0, JpegHuffmanTable* arg1, u8* arg2, u16* arg3, u8 arg4
#pragma GLOBAL_ASM("asm/us/nonmatchings/C970/func_8000BF70.s")
#endif
#ifdef NON_MATCHING
s32 func_8000C02C(u8* arg0, JpegHuffmanTable* arg1, u8* arg2, u16* arg3, s32 arg4) {
s32 temp_at;
s32 temp_lo;
s32 temp_t8;
s32 temp_v0;
s32 var_s1;
u8* var_s0;
u8* temp_s0;
u8* temp_s0_2;
s32 JpegUtils_ProcessHuffmanTable(u8* dht, JpegHuffmanTable* ht, u8* codesLengths, u16* codes, u8 count) {
u8 idx;
u32 codeCount;
var_s0 = arg0;
var_s1 = 0;
if ((s32) arg4 > 0) {
while(1) {
temp_lo = var_s1 * 0x54;
temp_s0 = var_s0 + 1;
temp_v0 = func_8000BF70(temp_s0, &arg1[temp_lo], arg2, arg3, (s32) *var_s0 >> 4);
temp_s0_2 = temp_s0 + 0x10;
if (temp_v0 == 0) {
return 1;
}
temp_t8 = (var_s1 + 1) & 0xFF;
temp_at = temp_t8 < (s32) arg4;
arg1[temp_lo].symbols = temp_s0_2;
var_s1 = temp_t8;
var_s0 = temp_s0_2 + temp_v0;
if (temp_at == 0) {
return 0;
}
for (idx = 0; idx < count; idx++) {
u32 ac = (*dht++ >> 4);
codeCount = func_8000BF70(dht, &ht[idx], codesLengths, codes, ac);
if (codeCount == 0) {
return 1;
}
dht += 0x10;
ht[idx].symbols = dht;
dht += codeCount;
}
return 0;
}
#else
#pragma GLOBAL_ASM("asm/us/nonmatchings/C970/func_8000C02C.s")
#endif
#ifdef NON_MATCHING
void func_8000C104(u8* arg0, unk_func_8000C104_arg1* arg1, u8* arg2, u16* arg3, s16 arg4, u8 arg5) {

2
src/C970.h
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@ -15,7 +15,7 @@ typedef struct JpegQuantizationTable {
} JpegQuantizationTable; // size = 0x80
void JpegUtils_ProcessQuantizationTable(u8* dqt, JpegQuantizationTable* qt, u8 num_tables);
s32 func_8000C02C(u8*, JpegHuffmanTable*, u8*, u16*, s32);
s32 JpegUtils_ProcessHuffmanTable(u8*, JpegHuffmanTable*, u8*, u16*, u8);
u16 JpegUtils_SetHuffmanTable(u8* data, JpegHuffmanTable* ht, u16* codes);
#endif // _C970_H_