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- splitted mmap in logical steps

Browse source 
- optimized mmap transfer
- completed mmap helpers
- renamed pcm_plugin_build.c to pcm_common.c
This commit is contained in:
Abramo Bagnara 2000-05-16 15:20:34 +00:00
parent 5b42e338bb
commit 7b054f4dce
17 changed files with 658 additions and 781 deletions
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28
src/pcm/plugin/rate.c
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@ -106,15 +106,15 @@ static void resample_expand(snd_pcm_plugin_t *plugin,
S2 = rvoices->last_S2;
if (!src_voices[voice].enabled) {
if (dst_voices[voice].wanted)
snd_pcm_plugin_silence_voice(plugin, &dst_voices[voice], dst_samples);
snd_pcm_area_silence(&dst_voices[voice].area, 0, dst_samples, plugin->dst_format.format);
dst_voices[voice].enabled = 0;
continue;
}
dst_voices[voice].enabled = 1;
src = (char *)src_voices[voice].addr + src_voices[voice].first / 8;
dst = (char *)dst_voices[voice].addr + dst_voices[voice].first / 8;
src_step = src_voices[voice].step / 8;
dst_step = dst_voices[voice].step / 8;
src = (char *)src_voices[voice].area.addr + src_voices[voice].area.first / 8;
dst = (char *)dst_voices[voice].area.addr + dst_voices[voice].area.first / 8;
src_step = src_voices[voice].area.step / 8;
dst_step = dst_voices[voice].area.step / 8;
src_samples1 = src_samples;
dst_samples1 = dst_samples;
if (pos & ~MASK) {
@ -190,15 +190,15 @@ static void resample_shrink(snd_pcm_plugin_t *plugin,
S2 = rvoices->last_S2;
if (!src_voices[voice].enabled) {
if (dst_voices[voice].wanted)
snd_pcm_plugin_silence_voice(plugin, &dst_voices[voice], dst_samples);
snd_pcm_area_silence(&dst_voices[voice].area, 0, dst_samples, plugin->dst_format.format);
dst_voices[voice].enabled = 0;
continue;
}
dst_voices[voice].enabled = 1;
src = (char *)src_voices[voice].addr + src_voices[voice].first / 8;
dst = (char *)dst_voices[voice].addr + dst_voices[voice].first / 8;
src_step = src_voices[voice].step / 8;
dst_step = dst_voices[voice].step / 8;
src = (char *)src_voices[voice].area.addr + src_voices[voice].area.first / 8;
dst = (char *)dst_voices[voice].area.addr + dst_voices[voice].area.first / 8;
src_step = src_voices[voice].area.step / 8;
dst_step = dst_voices[voice].area.step / 8;
src_samples1 = src_samples;
dst_samples1 = dst_samples;
while (dst_samples1 > 0) {
@ -313,11 +313,11 @@ static ssize_t rate_transfer(snd_pcm_plugin_t *plugin,
if (samples == 0)
return 0;
for (voice = 0; voice < plugin->src_format.voices; voice++) {
if (src_voices[voice].first % 8 != 0 ||
src_voices[voice].step % 8 != 0)
if (src_voices[voice].area.first % 8 != 0 ||
src_voices[voice].area.step % 8 != 0)
return -EINVAL;
if (dst_voices[voice].first % 8 != 0 ||
dst_voices[voice].step % 8 != 0)
if (dst_voices[voice].area.first % 8 != 0 ||
dst_voices[voice].area.step % 8 != 0)
return -EINVAL;
}