diff options
Diffstat (limited to 'plugins/dfsound/xa.c')
| -rw-r--r-- | plugins/dfsound/xa.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/plugins/dfsound/xa.c b/plugins/dfsound/xa.c index b45aef2..b1efe10 100644 --- a/plugins/dfsound/xa.c +++ b/plugins/dfsound/xa.c @@ -389,21 +389,29 @@ INLINE void FeedXA(xa_decode_t *xap) // FEED CDDA //////////////////////////////////////////////////////////////////////// -INLINE void FeedCDDA(unsigned char *pcm, int nBytes) +INLINE int FeedCDDA(unsigned char *pcm, int nBytes) { + int space; + space=(CDDAPlay-CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1); + if(space<nBytes) + return 0x7761; // rearmed_wait + while(nBytes>0) { if(CDDAFeed==CDDAEnd) CDDAFeed=CDDAStart; - while(CDDAFeed==CDDAPlay-1|| - (CDDAFeed==CDDAEnd-1&&CDDAPlay==CDDAStart)) - { - if (!iUseTimer) usleep(1000); - else return; - } - *CDDAFeed++=(*pcm | (*(pcm+1)<<8) | (*(pcm+2)<<16) | (*(pcm+3)<<24)); - nBytes-=4; - pcm+=4; + space=(CDDAPlay-CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1); + if(CDDAFeed+space/4>CDDAEnd) + space=(CDDAEnd-CDDAFeed)*4; + if(space>nBytes) + space=nBytes; + + memcpy(CDDAFeed,pcm,space); + CDDAFeed+=space/4; + nBytes-=space; + pcm+=space; } + + return 0x676f; // rearmed_go } #endif |