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author | Treeki <treeki@gmail.com> | 2011-06-24 14:24:45 +0200 |
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committer | Treeki <treeki@gmail.com> | 2011-06-24 14:24:45 +0200 |
commit | 673484e580337cd1ab14bfd43c770f004494b9a4 (patch) | |
tree | 59ad19982b31a0a81c48bd51c1749c49e2425a42 /src/compression.S | |
parent | 14f66f5e100561a71f2fe2be957b74c16303b8b1 (diff) | |
download | kamek-673484e580337cd1ab14bfd43c770f004494b9a4.tar.gz kamek-673484e580337cd1ab14bfd43c770f004494b9a4.zip |
added the compression updates from master
Diffstat (limited to 'src/compression.S')
-rw-r--r-- | src/compression.S | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/compression.S b/src/compression.S new file mode 100644 index 0000000..dfa2894 --- /dev/null +++ b/src/compression.S @@ -0,0 +1,127 @@ +.text +.align 4 +.set sp, 1 + +#ifndef __MWERKS__ +.set r0,0; .set r1,1; .set r2,2; .set r3,3; .set r4,4 +.set r5,5; .set r6,6; .set r7,7; .set r8,8; .set r9,9 +.set r10,10; .set r11,11; .set r12,12; .set r13,13; .set r14,14 +.set r15,15; .set r16,16; .set r17,17; .set r18,18; .set r19,19 +.set r20,20; .set r21,21; .set r22,22; .set r23,23; .set r24,24 +.set r25,25; .set r26,26; .set r27,27; .set r28,28; .set r29,29 +.set r30,30; .set r31,31; .set f0,0; .set f2,2; .set f3,3 +.set f1,1; .set f30,30; .set f31,31 +#endif + +.extern StoreCompressionClassList + +.extern SZSDecompClass +.extern LZDecompClass +.extern LHDecompClass +.extern LRCDecompClass +.extern RLDecompClass + +.extern DecompBufferPointer + +.extern AllocFromGameHeap1 +.extern OSReport + +.extern TryAndFindCompressedFile +.extern DVDConvertPathToEntrynum + +.global InitCompression +InitCompression: + stwu sp, -0x10(sp) + mflr r0 + stw r0, 0x14(sp) + # -- Prolog + + lis r3, CMsg@h + ori r3, r3, CMsg@l + crclr 4*cr1+eq + bl OSReport + + lis r3, CCCL@h + ori r3, r3, CCCL@l + lis r4, CCCL_End@h + ori r4, r4, CCCL_End@l + bl StoreCompressionClassList + + # Allocate a buffer for decompression stuff + li r3, 0x8B4 + bl AllocFromGameHeap1 + lis r4, DecompBufferPointer@h + ori r4, r4, DecompBufferPointer@l + stw r3, 0(r4) + + mr r4, r3 + lis r3, CMsg2@h + ori r3, r3, CMsg2@l + crclr 4*cr1+eq + bl OSReport + + # -- Epilog + li r3, 1 + lwz r0, 0x14(sp) + mtlr r0 + addi sp, sp, 0x10 + blr + + +.global GetFileEntrynumNew +GetFileEntrynumNew: + stwu sp, -0x20(sp) + mflr r0 + stw r0, 0x24(sp) + stw r31, 0x1C(sp) + stw r30, 0x18(sp) + stw r29, 0x14(sp) + # Compression Type pointer (byte*) + mr r30, r4 + # Filename + mr r29, r3 + + # first, try compression + # don't bother checking 5278, it's always on in NSMBW anyway + bl TryAndFindCompressedFile + cmpwi r3, -1 + bne returnEntrynum + + # didn't find it, so try the normal version + mr r3, r29 + bl DVDConvertPathToEntrynum + # return value gets passed through + + cmpwi r30, 0 + beq returnEntrynum + li r0, 0 + stb r0, 0(r30) + +returnEntrynum: + lwz r31, 0x1C(sp) + lwz r30, 0x18(sp) + lwz r29, 0x14(sp) + lwz r0, 0x24(sp) + mtlr r0 + addi sp, sp, 0x20 + blr + + +.data +CCCL: + .long LHDecompClass + .long LZDecompClass +CCCL_End: + .long 0 + +CMsg: + .string "Setting up fancy decompression!\n" + +CMsg2: + .string "Buffer: %p\n" + +.align 4 + + + + |