GBA-Exploader/libraries/libnds32/source/arm9/decompress.c
ApacheThunder 540515c7fc Add game specific gbaframe support ...
* Can now use gbaframes specific to a gba rom being loaded to ram/flash.
Have a bmp file with filename matching the game rom being flashed in
GBA_SIGN path. If it finds a matching BMP it will use that before
falling back to the default gbaframe.bmp paths.
* nds-bootstrap now used for booting retail NDS roms from file browser.
Note that currently GBA-Exploader does not create new save files so only
games with existing save files (currently hardcoded to GBA_SAV path like
with GBA games) can be booted with this.
2024-11-17 15:44:06 -06:00

99 lines
2.5 KiB
C

/*---------------------------------------------------------------------------------
Copyright (C) 2005
Jason Rogers (dovoto)
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any
damages arising from the use of this software.
Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it and
redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you
must not claim that you wrote the original software. If you use
this software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and
must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
---------------------------------------------------------------------------------*/
#include <nds/arm9/decompress.h>
#include <nds/bios.h>
#include <nds/arm9/sassert.h>
static int getHeader(uint8 *source, uint16 *dest, uint32 arg) {
return *(uint32*)source;
}
static uint8 readByte(uint8 *source) {
return *source;
}
TDecompressionStream decomStream = {
getHeader,
0,
readByte
};
void decompress(const void* data, void* dst, DecompressType type)
{
switch(type)
{
case LZ77Vram:
swiDecompressLZSSVram((void*)data, (void*)dst, 0, &decomStream);
break;
case LZ77:
swiDecompressLZSSWram((void*)data, (void*)dst);
break;
case HUFF:
swiDecompressHuffman((void*)data, (void*)dst, 0, &decomStream);
break;
case RLE:
swiDecompressRLEWram((void*)data, (void*)dst);
break;
case RLEVram:
swiDecompressRLEVram((void*)data, (void*)dst, 0, &decomStream);
break;
default:
break;
}
}
void decompressStream(const void* data, void* dst, DecompressType type, getByteCallback readCB, getHeaderCallback getHeaderCB)
{
#ifdef ARM9
sassert(type != LZ77 && type != RLE, "LZ77 and RLE do not support streaming, use Vram versions");
#endif
TDecompressionStream decompresStream =
{
getHeaderCB,
0,
readCB
};
switch(type)
{
case LZ77Vram:
swiDecompressLZSSVram((void*)data, (void*)dst, 0, &decompresStream);
break;
case HUFF:
swiDecompressHuffman((void*)data, (void*)dst, 0, &decompresStream);
break;
case RLEVram:
swiDecompressRLEVram((void*)data, (void*)dst, 0, &decompresStream);
break;
default:
break;
}
}