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Import sources for libao driver (unfinished, based on dummy driver)

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This commit is contained in:
Anton Yabchinskiy 2014-11-20 03:11:54 +03:00
parent e709468bb1
commit c1f62a04d7
3 changed files with 210 additions and 0 deletions
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5
drivers/ao/SCsub Normal file
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Import('env')
env.add_source_files(env.drivers_sources,"*.cpp")
Export('env')

129
drivers/ao/audio_driver_ao.cpp Normal file
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/*************************************************************************/
/* audio_driver_ao.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "audio_driver_ao.h"
#include "globals.h"
#include "os/os.h"
Error AudioDriverAO::init() {
active = false;
thread_exited = false;
exit_thread = false;
pcm_open = false;
samples_in = NULL;
mix_rate = 44100;
output_format = OUTPUT_STEREO;
channels = 2;
int latency = GLOBAL_DEF("audio/output_latency",25);
buffer_size = nearest_power_of_2( latency * mix_rate / 1000 );
samples_in = memnew_arr(int32_t, buffer_size*channels);
mutex = Mutex::create();
thread = Thread::create(AudioDriverAO::thread_func, this);
return OK;
};
void AudioDriverAO::thread_func(void* p_udata) {
AudioDriverAO* ad = (AudioDriverAO*)p_udata;
uint64_t usdelay = (ad->buffer_size / float(ad->mix_rate))*1000000;
while (!ad->exit_thread) {
if (!ad->active) {
} else {
ad->lock();
ad->audio_server_process(ad->buffer_size, ad->samples_in);
ad->unlock();
};
OS::get_singleton()->delay_usec(usdelay);
};
ad->thread_exited=true;
};
void AudioDriverAO::start() {
active = true;
};
int AudioDriverAO::get_mix_rate() const {
return mix_rate;
};
AudioDriverSW::OutputFormat AudioDriverAO::get_output_format() const {
return output_format;
};
void AudioDriverAO::lock() {
if (!thread || !mutex)
return;
mutex->lock();
};
void AudioDriverAO::unlock() {
if (!thread || !mutex)
return;
mutex->unlock();
};
void AudioDriverAO::finish() {
if (!thread)
return;
exit_thread = true;
Thread::wait_to_finish(thread);
if (samples_in) {
memdelete_arr(samples_in);
};
memdelete(thread);
if (mutex)
memdelete(mutex);
thread = NULL;
};
AudioDriverAO::AudioDriverAO() {
mutex = NULL;
thread = NULL;
};
AudioDriverAO::~AudioDriverAO() {
};

76
drivers/ao/audio_driver_ao.h Normal file
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/*************************************************************************/
/* audio_driver_ao.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "servers/audio/audio_server_sw.h"
#ifdef AO_ENABLED
#include "core/os/thread.h"
#include "core/os/mutex.h"
#include <ao/ao.h>
class AudioDriverAO : public AudioDriverSW {
Thread* thread;
Mutex* mutex;
int32_t* samples_in;
static void thread_func(void* p_udata);
int buffer_size;
unsigned int mix_rate;
OutputFormat output_format;
int channels;
bool active;
bool thread_exited;
mutable bool exit_thread;
bool pcm_open;
public:
const char* get_name() const {
return "libao";
};
virtual Error init();
virtual void start();
virtual int get_mix_rate() const;
virtual OutputFormat get_output_format() const;
virtual void lock();
virtual void unlock();
virtual void finish();
AudioDriverAO();
~AudioDriverAO();
};
#endif