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Implemented PulseAudio backend and fixed audio driver selection on X11

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This commit is contained in:
Alexander Stillich 2014-12-19 13:44:34 +01:00
parent 04362defe7
commit f2843209a5
8 changed files with 313 additions and 1 deletions
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1
drivers/SCsub
View File

@ -7,6 +7,7 @@ Export('env')
SConscript('unix/SCsub');
SConscript('alsa/SCsub');
SConscript('pulseaudio/SCsub');
SConscript('windows/SCsub');
SConscript('gles2/SCsub');
SConscript('gles1/SCsub');

5
drivers/pulseaudio/SCsub Normal file
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@ -0,0 +1,5 @@
Import('env')
env.add_source_files(env.drivers_sources,"*.cpp")
Export('env')

194
drivers/pulseaudio/audio_driver_pulseaudio.cpp Normal file
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@ -0,0 +1,194 @@
/*************************************************************************/
/* audio_driver_alsa.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_pulseaudio.h"
#ifdef PULSEAUDIO_ENABLED
#include <pulse/error.h>
#include "globals.h"
Error AudioDriverPulseAudio::init() {
active = false;
thread_exited = false;
exit_thread = false;
pcm_open = false;
samples_in = NULL;
samples_out = NULL;
mix_rate = 44100;
output_format = OUTPUT_STEREO;
channels = 2;
pa_sample_spec spec;
spec.format = PA_SAMPLE_S16LE;
spec.channels = channels;
spec.rate = mix_rate;
int error_code;
pulse = pa_simple_new(NULL, // default server
"Godot", // application name
PA_STREAM_PLAYBACK,
NULL, // default device
"Sound", // stream description
&spec,
NULL, // use default channel map
NULL, // use default buffering attributes
&error_code
);
if (pulse == NULL) {
fprintf(stderr, "PulseAudio ERR: %s\n", pa_strerror(error_code));\
ERR_FAIL_COND_V(pulse == NULL, ERR_CANT_OPEN);
}
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);
samples_out = memnew_arr(int16_t, buffer_size * channels);
mutex = Mutex::create();
thread = Thread::create(AudioDriverPulseAudio::thread_func, this);
return OK;
}
void AudioDriverPulseAudio::thread_func(void* p_udata) {
AudioDriverPulseAudio* ad = (AudioDriverPulseAudio*)p_udata;
while (!ad->exit_thread) {
if (!ad->active) {
for (unsigned int i=0; i < ad->buffer_size * ad->channels; i++) {
ad->samples_out[i] = 0;
}
} else {
ad->lock();
ad->audio_server_process(ad->buffer_size, ad->samples_in);
ad->unlock();
for (unsigned int i=0; i < ad->buffer_size * ad->channels;i ++) {
ad->samples_out[i] = ad->samples_in[i] >> 16;
}
}
// pa_simple_write always consumes the entire buffer
int error_code;
int byte_size = ad->buffer_size * sizeof(int16_t) * ad->channels;
if (pa_simple_write(ad->pulse, ad->samples_out, byte_size, &error_code) < 0) {
// can't recover here
fprintf(stderr, "PulseAudio failed and can't recover: %s\n", pa_strerror(error_code));
ad->active = false;
ad->exit_thread = true;
break;
}
}
ad->thread_exited = true;
}
void AudioDriverPulseAudio::start() {
active = true;
}
int AudioDriverPulseAudio::get_mix_rate() const {
return mix_rate;
}
AudioDriverSW::OutputFormat AudioDriverPulseAudio::get_output_format() const {
return output_format;
}
void AudioDriverPulseAudio::lock() {
if (!thread || !mutex)
return;
mutex->lock();
}
void AudioDriverPulseAudio::unlock() {
if (!thread || !mutex)
return;
mutex->unlock();
}
void AudioDriverPulseAudio::finish() {
if (!thread)
return;
exit_thread = true;
Thread::wait_to_finish(thread);
if (pulse)
pa_simple_free(pulse);
if (samples_in) {
memdelete_arr(samples_in);
memdelete_arr(samples_out);
};
memdelete(thread);
if (mutex) {
memdelete(mutex);
mutex = NULL;
}
thread = NULL;
}
AudioDriverPulseAudio::AudioDriverPulseAudio() {
mutex = NULL;
thread = NULL;
pulse = NULL;
}
AudioDriverPulseAudio::~AudioDriverPulseAudio() {
}
#endif

79
drivers/pulseaudio/audio_driver_pulseaudio.h Normal file
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@ -0,0 +1,79 @@
/*************************************************************************/
/* audio_driver_pulseaudio.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 PULSEAUDIO_ENABLED
#include "core/os/thread.h"
#include "core/os/mutex.h"
#include <pulse/simple.h>
class AudioDriverPulseAudio : public AudioDriverSW {
Thread* thread;
Mutex* mutex;
pa_simple* pulse;
int32_t* samples_in;
int16_t* samples_out;
static void thread_func(void* p_udata);
unsigned int mix_rate;
OutputFormat output_format;
unsigned int buffer_size;
int channels;
bool active;
bool thread_exited;
mutable bool exit_thread;
bool pcm_open;
public:
const char* get_name() const {
return "PulseAudio";
};
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();
AudioDriverPulseAudio();
~AudioDriverPulseAudio();
};
#endif

1
main/main.cpp
View File

@ -147,6 +147,7 @@ void Main::print_help(const char* p_binary) {
OS::get_singleton()->print(", ");
OS::get_singleton()->print("%s",OS::get_singleton()->get_audio_driver_name(i));
}
OS::get_singleton()->print(")\n");
OS::get_singleton()->print("\t-rthread <mode>\t : Render Thread Mode ('unsafe', 'safe', 'separate).");
OS::get_singleton()->print(")\n");
OS::get_singleton()->print("\t-s,-script [script] : Run a script.\n");

8
platform/x11/detect.py
View File

@ -114,6 +114,14 @@ def configure(env):
env.Append(CPPFLAGS=['-DOPENGL_ENABLED','-DGLEW_ENABLED'])
env.Append(CPPFLAGS=["-DALSA_ENABLED"])
if not os.system("pkg-config --exists libpulse-simple"):
print("Enabling PulseAudio")
env.Append(CPPFLAGS=["-DPULSEAUDIO_ENABLED"])
env.ParseConfig('pkg-config --cflags --libs libpulse-simple')
else:
print("PulseAudio development libraries not found, disabling driver")
env.Append(CPPFLAGS=['-DX11_ENABLED','-DUNIX_ENABLED','-DGLES2_ENABLED','-DGLES1_ENABLED','-DGLES_OVER_GL'])
env.Append(LIBS=['GL', 'GLU', 'pthread','asound','z']) #TODO detect linux/BSD!
#env.Append(CPPFLAGS=['-DMPC_FIXED_POINT'])

16
platform/x11/os_x11.cpp
View File

@ -74,6 +74,18 @@ OS::VideoMode OS_X11::get_default_video_mode() const {
return OS::VideoMode(800,600,false);
}
int OS_X11::get_audio_driver_count() const {
return AudioDriverManagerSW::get_driver_count();
}
const char *OS_X11::get_audio_driver_name(int p_driver) const {
AudioDriverSW* driver = AudioDriverManagerSW::get_driver(p_driver);
ERR_FAIL_COND_V( !driver, "" );
return AudioDriverManagerSW::get_driver(p_driver)->get_name();
}
void OS_X11::initialize(const VideoMode& p_desired,int p_video_driver,int p_audio_driver) {
last_button_state=0;
@ -1450,6 +1462,10 @@ OS_X11::OS_X11() {
AudioDriverManagerSW::add_driver(&driver_alsa);
#endif
#ifdef PULSEAUDIO_ENABLED
AudioDriverManagerSW::add_driver(&driver_pulseaudio);
#endif
minimized = false;
xim_style=NULL;
mouse_mode=MOUSE_MODE_VISIBLE;

8
platform/x11/os_x11.h
View File

@ -43,6 +43,7 @@
#include "servers/spatial_sound_2d/spatial_sound_2d_server_sw.h"
#include "drivers/rtaudio/audio_driver_rtaudio.h"
#include "drivers/alsa/audio_driver_alsa.h"
#include "drivers/pulseaudio/audio_driver_pulseaudio.h"
#include "servers/physics_2d/physics_2d_server_sw.h"
#include <X11/keysym.h>
@ -129,6 +130,10 @@ class OS_X11 : public OS_Unix {
AudioDriverALSA driver_alsa;
#endif
#ifdef PULSEAUDIO_ENABLED
AudioDriverPulseAudio driver_pulseaudio;
#endif
enum {
JOYSTICKS_MAX = 8,
MAX_JOY_AXIS = 32768, // I've no idea
@ -161,6 +166,9 @@ protected:
virtual const char * get_video_driver_name(int p_driver) const;
virtual VideoMode get_default_video_mode() const;
virtual int get_audio_driver_count() const;
virtual const char * get_audio_driver_name(int p_driver) const;
virtual void initialize(const VideoMode& p_desired,int p_video_driver,int p_audio_driver);
virtual void finalize();