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Possible crash fixed while crossfade is enabled.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6891 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Miika Pekkarinen 2005-06-27 07:06:58 +00:00
parent ff74e7f18b
commit deeeb33db1
1 changed files with 26 additions and 28 deletions
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54
firmware/pcm_playback.c
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@ -520,37 +520,35 @@ void pcm_flush_buffer(size_t length)
crossfade_pos -= PCMBUF_SIZE;
}
if (length > 0) {
memcpy(&audiobuffer[audiobuffer_pos], buf, length);
while (length > 0) {
copy_n = MIN(length, PCMBUF_SIZE - (unsigned)audiobuffer_pos);
memcpy(&audiobuffer[audiobuffer_pos], buf, copy_n);
audiobuffer_fillpos = length;
goto try_flush;
buf += copy_n;
length -= copy_n;
if (length > 0)
pcm_flush_fillpos();
}
} else {
/* if (length == 0) {
pcm_flush_fillpos();
audiobuffer_pos = 0;
return ;
} */
audiobuffer_fillpos += length;
try_flush:
if (audiobuffer_fillpos < CHUNK_SIZE && PCMBUF_SIZE
- audiobuffer_pos - audiobuffer_fillpos > 0)
return ;
copy_n = MIN((long)(audiobuffer_fillpos - (PCMBUF_SIZE
- audiobuffer_pos)), PCMBUF_GUARD);
if (copy_n > 0) {
//logf("guard buf used:%d", copy_n);
audiobuffer_fillpos -= copy_n;
pcm_flush_fillpos();
memcpy(&audiobuffer[0], &guardbuf[0], copy_n);
audiobuffer_fillpos = copy_n;
goto try_flush;
}
pcm_flush_fillpos();
}
audiobuffer_fillpos += length;
try_flush:
if (audiobuffer_fillpos < CHUNK_SIZE && PCMBUF_SIZE
- audiobuffer_pos - audiobuffer_fillpos > 0)
return ;
copy_n = MIN((long)(audiobuffer_fillpos - (PCMBUF_SIZE
- audiobuffer_pos)), PCMBUF_GUARD);
if (copy_n > 0) {
//logf("guard buf used:%d", copy_n);
audiobuffer_fillpos -= copy_n;
pcm_flush_fillpos();
memcpy(&audiobuffer[0], &guardbuf[0], copy_n);
audiobuffer_fillpos = copy_n;
goto try_flush;
}
pcm_flush_fillpos();
}
bool pcm_insert_buffer(char *buf, size_t length)