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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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18
src/pcm/plugin/linear.c
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@ -63,15 +63,15 @@ static void convert(snd_pcm_plugin_t *plugin,
size_t samples1;
if (!src_voices[voice].enabled) {
if (dst_voices[voice].wanted)
snd_pcm_plugin_silence_voice(plugin, &dst_voices[voice], samples);
snd_pcm_area_silence(&dst_voices[voice].area, 0, samples, plugin->dst_format.format);
dst_voices[voice].enabled = 0;
continue;
}
dst_voices[voice].enabled = 1;
src = src_voices[voice].addr + src_voices[voice].first / 8;
dst = dst_voices[voice].addr + dst_voices[voice].first / 8;
src_step = src_voices[voice].step / 8;
dst_step = dst_voices[voice].step / 8;
src = src_voices[voice].area.addr + src_voices[voice].area.first / 8;
dst = 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;
samples1 = samples;
while (samples1-- > 0) {
goto *conv;
@ -99,11 +99,11 @@ static ssize_t linear_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;
}
convert(plugin, src_voices, dst_voices, samples);