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Decompile jpegutils.c (#75)

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* 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
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Random 2020-04-16 20:08:23 +02:00 • committed by GitHub
parent 045a92d7c3
commit 9ac1f8130d
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 210 additions and 418 deletions
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32
src/code/z_jpeg.c
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@ -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;