mirror of
https://github.com/zeldaret/oot.git
synced 2025-07-04 15:04:31 +00:00
Decompile jpegutils.c (#75)
* Decompile jpegutils.c jpegutils.c : OK * Fix a typo * Fixes in PR #75 - Fix a type in JpegWork - Remove clang-format off/on in z_quake.c - Move the jpegutils rule at the end of makefile
This commit is contained in:
Random
GitHub
parent
045a92d7c3
commit
9ac1f8130d
10 changed files with 210 additions and 418 deletions
155
src/code/jpegutils.c
Normal file
155
src/code/jpegutils.c
Normal file
|
|
@ -0,0 +1,155 @@
|
|||
#include <global.h>
|
||||
|
||||
void JpegUtils_ProcessQuantizationTable(u8* dqt, JpegQuantizationTable* qt, u8 count) {
|
||||
u8 i;
|
||||
|
||||
for (i = 0; i < count; i++) {
|
||||
u8 j;
|
||||
dqt++;
|
||||
for (j = 0; j < 64; j++) {
|
||||
qt[i].table[j] = *dqt++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
s32 JpegUtils_ParseHuffmancodesLengths(u8* ptr, u8* codesLengths) {
|
||||
u8 off = 1;
|
||||
s16 count = 0;
|
||||
s16 idx = 1;
|
||||
|
||||
while (off < 0x11) {
|
||||
while (idx <= ptr[off - 1]) {
|
||||
codesLengths[count++] = off;
|
||||
idx++;
|
||||
}
|
||||
idx = 1;
|
||||
off++;
|
||||
}
|
||||
|
||||
codesLengths[count] = 0;
|
||||
return count;
|
||||
}
|
||||
|
||||
s32 JpegUtils_GetHuffmanCodes(u8* codesLengths, u16* codes) {
|
||||
s16 idx = 0;
|
||||
u16 code = 0;
|
||||
u8 lastLen = codesLengths[0];
|
||||
|
||||
while (true) {
|
||||
while (true) {
|
||||
codes[idx++] = code++;
|
||||
|
||||
if (codesLengths[idx] != lastLen) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (codesLengths[idx] == 0) {
|
||||
break;
|
||||
}
|
||||
|
||||
while (true) {
|
||||
if (code <<= 1, codesLengths[idx] == ++lastLen) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return idx;
|
||||
}
|
||||
|
||||
s32 JpegUtils_SetHuffmanTable(u8* data, JpegHuffmanTable* ht, u16* codes) {
|
||||
u8 idx;
|
||||
u16 codeOff;
|
||||
|
||||
codeOff = 0;
|
||||
|
||||
for (idx = 0; idx < 0x10; idx++) {
|
||||
if (data[idx]) {
|
||||
ht->codeOffs[idx] = codeOff;
|
||||
ht->codesA[idx] = codes[codeOff];
|
||||
codeOff += data[idx] - 1;
|
||||
ht->codesB[idx] = codes[codeOff];
|
||||
codeOff++;
|
||||
} else {
|
||||
ht->codesB[idx] = 0xFFFF;
|
||||
}
|
||||
}
|
||||
|
||||
return codeOff;
|
||||
}
|
||||
|
||||
u32 JpegUtils_ProcessHuffmanTableImpl(u8* data, JpegHuffmanTable* ht, u8* codesLengths, u16* codes, u8 isAc) {
|
||||
s16 ret;
|
||||
s32 count;
|
||||
s32 temp;
|
||||
|
||||
count = JpegUtils_ParseHuffmancodesLengths(data, codesLengths);
|
||||
ret = count;
|
||||
if (count == 0 || (isAc && count > 0x100) || (!isAc && count > 0x10)) {
|
||||
return 0;
|
||||
}
|
||||
if (ret != JpegUtils_GetHuffmanCodes(codesLengths, codes)) {
|
||||
return 0;
|
||||
}
|
||||
if (temp = JpegUtils_SetHuffmanTable(data, ht, codes), temp != ret) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
u32 JpegUtils_ProcessHuffmanTable(u8* dht, JpegHuffmanTable* ht, u8* codesLengths, u16* codes, u8 count) {
|
||||
u8 idx;
|
||||
u32 codeCount;
|
||||
|
||||
for (idx = 0; idx < count; idx++) {
|
||||
u32 ac = (*dht++ >> 4);
|
||||
codeCount = JpegUtils_ProcessHuffmanTableImpl(dht, &ht[idx], codesLengths, codes, ac);
|
||||
if (codeCount == 0) {
|
||||
return 1;
|
||||
}
|
||||
|
||||
dht += 0x10;
|
||||
ht[idx].symbols = dht;
|
||||
dht += codeCount;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
void JpegUtils_SetHuffmanTableOld(u8* data, JpegHuffmanTableOld* ht, u8* codesLengths, u16* codes, s16 count, u8 isAc) {
|
||||
s16 idx;
|
||||
u8 a;
|
||||
for (idx = 0; idx < count; idx++) {
|
||||
a = data[idx];
|
||||
if (isAc) {
|
||||
ht->acCodes[a] = codes[idx];
|
||||
ht->codeOffs[a] = codesLengths[idx];
|
||||
} else {
|
||||
ht->dcCodes[a] = codes[idx];
|
||||
ht->codeOffs[a] = codesLengths[idx];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
u32 JpegUtils_ProcessHuffmanTableImplOld(u8* dht, JpegHuffmanTableOld* ht, u8* codesLengths, u16* codes) {
|
||||
u8 isAc;
|
||||
s16 count2;
|
||||
s32 count;
|
||||
|
||||
isAc = *dht++ >> 4;
|
||||
|
||||
count2 = count = JpegUtils_ParseHuffmancodesLengths(dht, codesLengths);
|
||||
|
||||
if (count == 0 || (isAc && count > 0x100) || (!isAc && count > 0x10)) {
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (JpegUtils_GetHuffmanCodes(codesLengths, codes) != count2) {
|
||||
return 1;
|
||||
}
|
||||
|
||||
JpegUtils_SetHuffmanTableOld(dht + 0x10, ht, codesLengths, codes, count2, isAc);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -97,8 +97,7 @@ void Jpeg_CopyToZbuffer(u16* src, u16* zbuffer, s32 x, s32 y) {
|
|||
u16 Jpeg_GetU16(u8* ptr) {
|
||||
if (((u32)ptr & 1) == 0) { // if the address is aligned to 2
|
||||
return *(u16*)ptr;
|
||||
}
|
||||
else {
|
||||
} else {
|
||||
return *(u16*)(ptr - 1) << 8 | (*(u16*)(ptr + 1) >> 8); // ?? it's exactly like *(16*)ptr
|
||||
}
|
||||
}
|
||||
|
|
@ -250,19 +249,19 @@ s32 Jpeg_Decode(void* data, u16* zbuffer, JpegWork* workBuff, u32 workSize) {
|
|||
|
||||
switch (ctx.dqtCount) {
|
||||
case 1: {
|
||||
func_800FF540(ctx.dqtPtr[0], &workBuff->qTables[0], 3);
|
||||
JpegUtils_ProcessQuantizationTable(ctx.dqtPtr[0], &workBuff->qTables[0], 3);
|
||||
break;
|
||||
}
|
||||
case 2: {
|
||||
func_800FF540(ctx.dqtPtr[0], &workBuff->qTables[0], 1);
|
||||
func_800FF540(ctx.dqtPtr[1], &workBuff->qTables[1], 1);
|
||||
func_800FF540(ctx.dqtPtr[1], &workBuff->qTables[2], 1);
|
||||
JpegUtils_ProcessQuantizationTable(ctx.dqtPtr[0], &workBuff->qTables[0], 1);
|
||||
JpegUtils_ProcessQuantizationTable(ctx.dqtPtr[1], &workBuff->qTables[1], 1);
|
||||
JpegUtils_ProcessQuantizationTable(ctx.dqtPtr[1], &workBuff->qTables[2], 1);
|
||||
break;
|
||||
}
|
||||
case 3: {
|
||||
func_800FF540(ctx.dqtPtr[0], &workBuff->qTables[0], 1);
|
||||
func_800FF540(ctx.dqtPtr[1], &workBuff->qTables[1], 1);
|
||||
func_800FF540(ctx.dqtPtr[2], &workBuff->qTables[2], 1);
|
||||
JpegUtils_ProcessQuantizationTable(ctx.dqtPtr[0], &workBuff->qTables[0], 1);
|
||||
JpegUtils_ProcessQuantizationTable(ctx.dqtPtr[1], &workBuff->qTables[1], 1);
|
||||
JpegUtils_ProcessQuantizationTable(ctx.dqtPtr[2], &workBuff->qTables[2], 1);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
|
|
@ -277,22 +276,27 @@ s32 Jpeg_Decode(void* data, u16* zbuffer, JpegWork* workBuff, u32 workSize) {
|
|||
|
||||
switch (ctx.dhtCount) {
|
||||
case 1: {
|
||||
if (func_800FF7FC(ctx.dhtPtr[0], &hTables[0], &workBuff->codesLenghts, &workBuff->codes, 4)) {
|
||||
if (JpegUtils_ProcessHuffmanTable(ctx.dhtPtr[0], &hTables[0], &workBuff->codesLengths, &workBuff->codes,
|
||||
4)) {
|
||||
osSyncPrintf("Error : Cant' make huffman table.\n");
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 4: {
|
||||
if (func_800FF7FC(ctx.dhtPtr[0], &hTables[0], &workBuff->codesLenghts, &workBuff->codes, 1)) {
|
||||
if (JpegUtils_ProcessHuffmanTable(ctx.dhtPtr[0], &hTables[0], &workBuff->codesLengths, &workBuff->codes,
|
||||
1)) {
|
||||
osSyncPrintf("Error : Cant' make huffman table.\n");
|
||||
}
|
||||
if (func_800FF7FC(ctx.dhtPtr[1], &hTables[1], &workBuff->codesLenghts, &workBuff->codes, 1)) {
|
||||
if (JpegUtils_ProcessHuffmanTable(ctx.dhtPtr[1], &hTables[1], &workBuff->codesLengths, &workBuff->codes,
|
||||
1)) {
|
||||
osSyncPrintf("Error : Cant' make huffman table.\n");
|
||||
}
|
||||
if (func_800FF7FC(ctx.dhtPtr[2], &hTables[2], &workBuff->codesLenghts, &workBuff->codes, 1)) {
|
||||
if (JpegUtils_ProcessHuffmanTable(ctx.dhtPtr[2], &hTables[2], &workBuff->codesLengths, &workBuff->codes,
|
||||
1)) {
|
||||
osSyncPrintf("Error : Cant' make huffman table.\n");
|
||||
}
|
||||
if (func_800FF7FC(ctx.dhtPtr[3], &hTables[3], &workBuff->codesLenghts, &workBuff->codes, 1)) {
|
||||
if (JpegUtils_ProcessHuffmanTable(ctx.dhtPtr[3], &hTables[3], &workBuff->codesLengths, &workBuff->codes,
|
||||
1)) {
|
||||
osSyncPrintf("Error : Cant' make huffman table.\n");
|
||||
}
|
||||
break;
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@
|
|||
QuakeRequest sQuakeRequest[4];
|
||||
s16 D_80126250 = 1;
|
||||
s16 sQuakeRequestCount = 0;
|
||||
|
||||
s16 (*sQuakeCallbacks[])(QuakeRequest*, ShakeInfo*) = {
|
||||
NULL, Quake_Callback1, Quake_Callback2, Quake_Callback3, Quake_Callback4, Quake_Callback5, Quake_Callback6,
|
||||
};
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue