From 9a826ddba6e087b1be24dd78cd0eac42f7eb7e97 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Mon, 23 Oct 2006 16:26:57 +0200 Subject: [ALSA] pcm core: fix silence_start calculations The case where silence_size < boundary was broken because different parts of the snd_pcm_playback_silence() function disagreed about whether silence_start should point to the start or to the end of the buffer part to be silenced. This patch changes the code to always use to the start, which also simplifies several calculations. Signed-off-by: Clemens Ladisch Signed-off-by: Jaroslav Kysela --- sound/core/pcm_lib.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'sound') diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 0bb142a28539..b336797be4fc 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -79,19 +79,17 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram runtime->silence_filled -= frames; if ((snd_pcm_sframes_t)runtime->silence_filled < 0) { runtime->silence_filled = 0; - runtime->silence_start = (ofs + frames) - runtime->buffer_size; + runtime->silence_start = new_hw_ptr; } else { - runtime->silence_start = ofs - runtime->silence_filled; + runtime->silence_start = ofs; } - if ((snd_pcm_sframes_t)runtime->silence_start < 0) - runtime->silence_start += runtime->boundary; } frames = runtime->buffer_size - runtime->silence_filled; } snd_assert(frames <= runtime->buffer_size, return); if (frames == 0) return; - ofs = (runtime->silence_start + runtime->silence_filled) % runtime->buffer_size; + ofs = runtime->silence_start % runtime->buffer_size; while (frames > 0) { transfer = ofs + frames > runtime->buffer_size ? runtime->buffer_size - ofs : frames; if (runtime->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED || -- cgit v1.2.3-59-g8ed1b