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author | Len Brown <len.brown@intel.com> | 2006-01-07 03:50:18 -0500 |
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committer | Len Brown <len.brown@intel.com> | 2006-01-07 03:50:18 -0500 |
commit | ed03f430cdc8c802652467e9097606fedc2c7abc (patch) | |
tree | 30941ec1e6f93e99358fefe18175e5dd800a4379 /sound/core/oss/rate.c | |
parent | ed349a8a0a780ed27e2a765f16cee54d9b63bfee (diff) | |
parent | 6f957eaf79356a32e838f5f262ee9a60544b1d5b (diff) | |
download | op-kernel-dev-ed03f430cdc8c802652467e9097606fedc2c7abc.zip op-kernel-dev-ed03f430cdc8c802652467e9097606fedc2c7abc.tar.gz |
Pull pnpacpi into acpica branch
Diffstat (limited to 'sound/core/oss/rate.c')
-rw-r--r-- | sound/core/oss/rate.c | 85 |
1 files changed, 43 insertions, 42 deletions
diff --git a/sound/core/oss/rate.c b/sound/core/oss/rate.c index 1096ec1..4854cef 100644 --- a/sound/core/oss/rate.c +++ b/sound/core/oss/rate.c @@ -33,29 +33,29 @@ * Basic rate conversion plugin */ -typedef struct { +struct rate_channel { signed short last_S1; signed short last_S2; -} rate_channel_t; +}; -typedef void (*rate_f)(snd_pcm_plugin_t *plugin, - const snd_pcm_plugin_channel_t *src_channels, - snd_pcm_plugin_channel_t *dst_channels, +typedef void (*rate_f)(struct snd_pcm_plugin *plugin, + const struct snd_pcm_plugin_channel *src_channels, + struct snd_pcm_plugin_channel *dst_channels, int src_frames, int dst_frames); -typedef struct rate_private_data { +struct rate_priv { unsigned int pitch; unsigned int pos; rate_f func; int get, put; snd_pcm_sframes_t old_src_frames, old_dst_frames; - rate_channel_t channels[0]; -} rate_t; + struct rate_channel channels[0]; +}; -static void rate_init(snd_pcm_plugin_t *plugin) +static void rate_init(struct snd_pcm_plugin *plugin) { unsigned int channel; - rate_t *data = (rate_t *)plugin->extra_data; + struct rate_priv *data = (struct rate_priv *)plugin->extra_data; data->pos = 0; for (channel = 0; channel < plugin->src_format.channels; channel++) { data->channels[channel].last_S1 = 0; @@ -63,9 +63,9 @@ static void rate_init(snd_pcm_plugin_t *plugin) } } -static void resample_expand(snd_pcm_plugin_t *plugin, - const snd_pcm_plugin_channel_t *src_channels, - snd_pcm_plugin_channel_t *dst_channels, +static void resample_expand(struct snd_pcm_plugin *plugin, + const struct snd_pcm_plugin_channel *src_channels, + struct snd_pcm_plugin_channel *dst_channels, int src_frames, int dst_frames) { unsigned int pos = 0; @@ -75,8 +75,8 @@ static void resample_expand(snd_pcm_plugin_t *plugin, unsigned int channel; int src_step, dst_step; int src_frames1, dst_frames1; - rate_t *data = (rate_t *)plugin->extra_data; - rate_channel_t *rchannels = data->channels; + struct rate_priv *data = (struct rate_priv *)plugin->extra_data; + struct rate_channel *rchannels = data->channels; #define GET_S16_LABELS #define PUT_S16_LABELS @@ -139,9 +139,9 @@ static void resample_expand(snd_pcm_plugin_t *plugin, data->pos = pos; } -static void resample_shrink(snd_pcm_plugin_t *plugin, - const snd_pcm_plugin_channel_t *src_channels, - snd_pcm_plugin_channel_t *dst_channels, +static void resample_shrink(struct snd_pcm_plugin *plugin, + const struct snd_pcm_plugin_channel *src_channels, + struct snd_pcm_plugin_channel *dst_channels, int src_frames, int dst_frames) { unsigned int pos = 0; @@ -151,8 +151,8 @@ static void resample_shrink(snd_pcm_plugin_t *plugin, unsigned int channel; int src_step, dst_step; int src_frames1, dst_frames1; - rate_t *data = (rate_t *)plugin->extra_data; - rate_channel_t *rchannels = data->channels; + struct rate_priv *data = (struct rate_priv *)plugin->extra_data; + struct rate_channel *rchannels = data->channels; #define GET_S16_LABELS #define PUT_S16_LABELS @@ -216,15 +216,15 @@ static void resample_shrink(snd_pcm_plugin_t *plugin, data->pos = pos; } -static snd_pcm_sframes_t rate_src_frames(snd_pcm_plugin_t *plugin, snd_pcm_uframes_t frames) +static snd_pcm_sframes_t rate_src_frames(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t frames) { - rate_t *data; + struct rate_priv *data; snd_pcm_sframes_t res; snd_assert(plugin != NULL, return -ENXIO); if (frames == 0) return 0; - data = (rate_t *)plugin->extra_data; + data = (struct rate_priv *)plugin->extra_data; if (plugin->src_format.rate < plugin->dst_format.rate) { res = (((frames * data->pitch) + (BITS/2)) >> SHIFT); } else { @@ -248,15 +248,15 @@ static snd_pcm_sframes_t rate_src_frames(snd_pcm_plugin_t *plugin, snd_pcm_ufram return res; } -static snd_pcm_sframes_t rate_dst_frames(snd_pcm_plugin_t *plugin, snd_pcm_uframes_t frames) +static snd_pcm_sframes_t rate_dst_frames(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t frames) { - rate_t *data; + struct rate_priv *data; snd_pcm_sframes_t res; snd_assert(plugin != NULL, return -ENXIO); if (frames == 0) return 0; - data = (rate_t *)plugin->extra_data; + data = (struct rate_priv *)plugin->extra_data; if (plugin->src_format.rate < plugin->dst_format.rate) { res = (((frames << SHIFT) + (data->pitch / 2)) / data->pitch); } else { @@ -280,13 +280,13 @@ static snd_pcm_sframes_t rate_dst_frames(snd_pcm_plugin_t *plugin, snd_pcm_ufram return res; } -static snd_pcm_sframes_t rate_transfer(snd_pcm_plugin_t *plugin, - const snd_pcm_plugin_channel_t *src_channels, - snd_pcm_plugin_channel_t *dst_channels, +static snd_pcm_sframes_t rate_transfer(struct snd_pcm_plugin *plugin, + const struct snd_pcm_plugin_channel *src_channels, + struct snd_pcm_plugin_channel *dst_channels, snd_pcm_uframes_t frames) { snd_pcm_uframes_t dst_frames; - rate_t *data; + struct rate_priv *data; snd_assert(plugin != NULL && src_channels != NULL && dst_channels != NULL, return -ENXIO); if (frames == 0) @@ -308,14 +308,14 @@ static snd_pcm_sframes_t rate_transfer(snd_pcm_plugin_t *plugin, dst_frames = rate_dst_frames(plugin, frames); if (dst_frames > dst_channels[0].frames) dst_frames = dst_channels[0].frames; - data = (rate_t *)plugin->extra_data; + data = (struct rate_priv *)plugin->extra_data; data->func(plugin, src_channels, dst_channels, frames, dst_frames); return dst_frames; } -static int rate_action(snd_pcm_plugin_t *plugin, - snd_pcm_plugin_action_t action, - unsigned long udata ATTRIBUTE_UNUSED) +static int rate_action(struct snd_pcm_plugin *plugin, + enum snd_pcm_plugin_action action, + unsigned long udata) { snd_assert(plugin != NULL, return -ENXIO); switch (action) { @@ -329,14 +329,14 @@ static int rate_action(snd_pcm_plugin_t *plugin, return 0; /* silenty ignore other actions */ } -int snd_pcm_plugin_build_rate(snd_pcm_plug_t *plug, - snd_pcm_plugin_format_t *src_format, - snd_pcm_plugin_format_t *dst_format, - snd_pcm_plugin_t **r_plugin) +int snd_pcm_plugin_build_rate(struct snd_pcm_substream *plug, + struct snd_pcm_plugin_format *src_format, + struct snd_pcm_plugin_format *dst_format, + struct snd_pcm_plugin **r_plugin) { int err; - rate_t *data; - snd_pcm_plugin_t *plugin; + struct rate_priv *data; + struct snd_pcm_plugin *plugin; snd_assert(r_plugin != NULL, return -ENXIO); *r_plugin = NULL; @@ -349,11 +349,12 @@ int snd_pcm_plugin_build_rate(snd_pcm_plug_t *plug, err = snd_pcm_plugin_build(plug, "rate conversion", src_format, dst_format, - sizeof(rate_t) + src_format->channels * sizeof(rate_channel_t), + sizeof(struct rate_priv) + + src_format->channels * sizeof(struct rate_channel), &plugin); if (err < 0) return err; - data = (rate_t *)plugin->extra_data; + data = (struct rate_priv *)plugin->extra_data; data->get = getput_index(src_format->format); snd_assert(data->get >= 0 && data->get < 4*2*2, return -EINVAL); data->put = getput_index(dst_format->format); |