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Stop libmad from crashing on 64 bit simulators.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14636 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2007-09-07 23:45:42 +00:00
parent b69556f3eb
commit aebeabdade
3 changed files with 20 additions and 15 deletions
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20
apps/codecs/libmad/bit.c
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@ -82,14 +82,18 @@ unsigned short const crc_table[256] = {
# define CRC_POLY 0x8005
#if INT_MAX != 0x7fffffff
#warning current libmad bit handling is optimized for architectures using 32 bit integers
#endif
/*
* NAME: bit->init()
* DESCRIPTION: initialize bit pointer struct
*/
void mad_bit_init(struct mad_bitptr *bitptr, unsigned char const *byte)
{
bitptr->ptr = (unsigned long*)((long)byte & ~3);
bitptr->readbit = ((unsigned long)byte & 3) << 3;
bitptr->ptr = (uint32_t*)((uintptr_t)byte & ~3);
bitptr->readbit = ((uintptr_t)byte & 3) << 3;
}
/*
@ -129,14 +133,14 @@ void mad_bit_skip(struct mad_bitptr *bitptr, unsigned int len)
* DESCRIPTION: read an arbitrary number of bits and return their UIMSBF value
*/
unsigned long mad_bit_read(struct mad_bitptr *bitptr, unsigned int len) ICODE_ATTR;
unsigned long mad_bit_read(struct mad_bitptr *bitptr, unsigned int len)
uint32_t mad_bit_read(struct mad_bitptr *bitptr, unsigned int len) ICODE_ATTR;
uint32_t mad_bit_read(struct mad_bitptr *bitptr, unsigned int len)
{
unsigned long *curr = &bitptr->ptr[bitptr->readbit>>5];
uint32_t *curr = &bitptr->ptr[bitptr->readbit>>5];
if(len)
{
unsigned long r = betoh32(curr[0]) << (bitptr->readbit & 31);
uint32_t r = betoh32(curr[0]) << (bitptr->readbit & 31);
if((bitptr->readbit & 31) + len > 32)
r += betoh32(curr[1]) >> (-bitptr->readbit & 31);
@ -154,7 +158,7 @@ unsigned long mad_bit_read(struct mad_bitptr *bitptr, unsigned int len)
* DESCRIPTION: write an arbitrary number of bits
*/
void mad_bit_write(struct mad_bitptr *bitptr, unsigned int len,
unsigned long value)
uint32_t value)
{
unsigned char *ptr;
@ -174,7 +178,7 @@ unsigned short mad_bit_crc(struct mad_bitptr bitptr, unsigned int len,
register unsigned int crc;
for (crc = init; len >= 32; len -= 32) {
register unsigned long data;
register uint32_t data;
data = mad_bit_read(&bitptr, 32);