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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:35 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:35 -0800
commitf721e3ac031f892af46f255a47d7f54a91317b30 (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /audio/noaudio.c
parentbae1bc39312d5019bd9a5b8d840a529213a69a17 (diff)
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auto import from //depot/cupcake/@135843
Diffstat (limited to 'audio/noaudio.c')
-rw-r--r--audio/noaudio.c172
1 files changed, 0 insertions, 172 deletions
diff --git a/audio/noaudio.c b/audio/noaudio.c
deleted file mode 100644
index 8788a41..0000000
--- a/audio/noaudio.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * QEMU Timer based audio emulation
- *
- * Copyright (c) 2004-2005 Vassili Karpov (malc)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "qemu-timer.h"
-
-#define AUDIO_CAP "noaudio"
-#include "audio_int.h"
-
-typedef struct NoVoiceOut {
- HWVoiceOut hw;
- int64_t old_ticks;
-} NoVoiceOut;
-
-typedef struct NoVoiceIn {
- HWVoiceIn hw;
- int64_t old_ticks;
-} NoVoiceIn;
-
-static int no_run_out (HWVoiceOut *hw)
-{
- NoVoiceOut *no = (NoVoiceOut *) hw;
- int live, decr, samples;
- int64_t now;
- int64_t ticks;
- int64_t bytes;
-
- live = audio_pcm_hw_get_live_out (&no->hw);
- if (!live) {
- return 0;
- }
-
- now = qemu_get_clock (vm_clock);
- ticks = now - no->old_ticks;
- bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
- bytes = audio_MIN (bytes, INT_MAX);
- samples = bytes >> hw->info.shift;
-
- no->old_ticks = now;
- decr = audio_MIN (live, samples);
- hw->rpos = (hw->rpos + decr) % hw->samples;
- return decr;
-}
-
-static int no_write (SWVoiceOut *sw, void *buf, int len)
-{
- return audio_pcm_sw_write (sw, buf, len);
-}
-
-static int no_init_out (HWVoiceOut *hw, audsettings_t *as)
-{
- audio_pcm_init_info (&hw->info, as);
- hw->samples = 1024;
- return 0;
-}
-
-static void no_fini_out (HWVoiceOut *hw)
-{
- (void) hw;
-}
-
-static int no_ctl_out (HWVoiceOut *hw, int cmd, ...)
-{
- (void) hw;
- (void) cmd;
- return 0;
-}
-
-static int no_init_in (HWVoiceIn *hw, audsettings_t *as)
-{
- audio_pcm_init_info (&hw->info, as);
- hw->samples = 1024;
- return 0;
-}
-
-static void no_fini_in (HWVoiceIn *hw)
-{
- (void) hw;
-}
-
-static int no_run_in (HWVoiceIn *hw)
-{
- NoVoiceIn *no = (NoVoiceIn *) hw;
- int live = audio_pcm_hw_get_live_in (hw);
- int dead = hw->samples - live;
- int samples = 0;
-
- if (dead) {
- int64_t now = qemu_get_clock (vm_clock);
- int64_t ticks = now - no->old_ticks;
- int64_t bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
-
- no->old_ticks = now;
- bytes = audio_MIN (bytes, INT_MAX);
- samples = bytes >> hw->info.shift;
- samples = audio_MIN (samples, dead);
- }
- return samples;
-}
-
-static int no_read (SWVoiceIn *sw, void *buf, int size)
-{
- int samples = size >> sw->info.shift;
- int total = sw->hw->total_samples_captured - sw->total_hw_samples_acquired;
- int to_clear = audio_MIN (samples, total);
- audio_pcm_info_clear_buf (&sw->info, buf, to_clear);
- return to_clear;
-}
-
-static int no_ctl_in (HWVoiceIn *hw, int cmd, ...)
-{
- (void) hw;
- (void) cmd;
- return 0;
-}
-
-static void *no_audio_init (void)
-{
- return &no_audio_init;
-}
-
-static void no_audio_fini (void *opaque)
-{
- (void) opaque;
-}
-
-static struct audio_pcm_ops no_pcm_ops = {
- no_init_out,
- no_fini_out,
- no_run_out,
- no_write,
- no_ctl_out,
-
- no_init_in,
- no_fini_in,
- no_run_in,
- no_read,
- no_ctl_in
-};
-
-struct audio_driver no_audio_driver = {
- INIT_FIELD (name = ) "none",
- INIT_FIELD (descr = ) "disabled audio",
- INIT_FIELD (options = ) NULL,
- INIT_FIELD (init = ) no_audio_init,
- INIT_FIELD (fini = ) no_audio_fini,
- INIT_FIELD (pcm_ops = ) &no_pcm_ops,
- INIT_FIELD (can_be_default = ) 1,
- INIT_FIELD (max_voices_out = ) INT_MAX,
- INIT_FIELD (max_voices_in = ) INT_MAX,
- INIT_FIELD (voice_size_out = ) sizeof (NoVoiceOut),
- INIT_FIELD (voice_size_in = ) sizeof (NoVoiceIn)
-};