switch-coreboot/src/lib/lzma.c
Carl-Daniel Hailfinger cba07dd682 additions and mods for lzma.
Signed-off-by: Carl-Daniel Hailfinger
Signed-off-by: Ronald G. Minnich


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2413 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2006-09-14 15:12:36 +00:00

39 lines
1.1 KiB
C

/*
LinuxBIOS interface to memory-saving variant of LZMA decoder
(C)opyright 2006 Carl-Daniel Hailfinger
Released under the GNU GPL
*/
#include "lzmadecode.c"
static unsigned long ulzma(unsigned char * src, unsigned char * dst)
{
unsigned char properties[LZMA_PROPERTIES_SIZE];
UInt32 outSize;
SizeT inProcessed;
SizeT outProcessed;
int res;
CLzmaDecoderState state;
SizeT mallocneeds;
unsigned char scratchpad[15980];
memcpy(properties, src, LZMA_PROPERTIES_SIZE);
outSize = *(UInt32 *)(src + LZMA_PROPERTIES_SIZE);
if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK) {
printk_warning("Incorrect stream properties\n");
}
mallocneeds = (LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
if (mallocneeds > 15980) {
printk_warning("Decoder scratchpad too small!\n");
}
state.Probs = (CProb *)scratchpad;
res = LzmaDecode(&state, src + LZMA_PROPERTIES_SIZE + 8, (SizeT)0xffffffff, &inProcessed,
dst, outSize, &outProcessed);
if (res != 0) {
printk_warning("Decoding error = %d\n", res);
}
return outSize;
}