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| Import('env') | ||
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| env.add_source_files(env.drivers_sources,"*.cpp") | ||
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| Export('env') |
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| /*************************************************************************/ | ||
| /* 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" | ||
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| #ifdef PULSEAUDIO_ENABLED | ||
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| #include <pulse/error.h> | ||
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| #include "globals.h" | ||
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| Error AudioDriverPulseAudio::init() { | ||
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| active = false; | ||
| thread_exited = false; | ||
| exit_thread = false; | ||
| pcm_open = false; | ||
| samples_in = NULL; | ||
| samples_out = NULL; | ||
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| mix_rate = 44100; | ||
| output_format = OUTPUT_STEREO; | ||
| channels = 2; | ||
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| pa_sample_spec spec; | ||
| spec.format = PA_SAMPLE_S16LE; | ||
| spec.channels = channels; | ||
| spec.rate = mix_rate; | ||
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| 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 | ||
| ); | ||
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| if (pulse == NULL) { | ||
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| fprintf(stderr, "PulseAudio ERR: %s\n", pa_strerror(error_code));\ | ||
| ERR_FAIL_COND_V(pulse == NULL, ERR_CANT_OPEN); | ||
| } | ||
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| int latency = GLOBAL_DEF("audio/output_latency", 25); | ||
| buffer_size = nearest_power_of_2(latency * mix_rate / 1000); | ||
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| samples_in = memnew_arr(int32_t, buffer_size * channels); | ||
| samples_out = memnew_arr(int16_t, buffer_size * channels); | ||
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| mutex = Mutex::create(); | ||
| thread = Thread::create(AudioDriverPulseAudio::thread_func, this); | ||
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| return OK; | ||
| } | ||
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| void AudioDriverPulseAudio::thread_func(void* p_udata) { | ||
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| AudioDriverPulseAudio* ad = (AudioDriverPulseAudio*)p_udata; | ||
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| while (!ad->exit_thread) { | ||
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| if (!ad->active) { | ||
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| for (unsigned int i=0; i < ad->buffer_size * ad->channels; i++) { | ||
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| ad->samples_out[i] = 0; | ||
| } | ||
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| } else { | ||
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| ad->lock(); | ||
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| ad->audio_server_process(ad->buffer_size, ad->samples_in); | ||
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| ad->unlock(); | ||
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| for (unsigned int i=0; i < ad->buffer_size * ad->channels;i ++) { | ||
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| ad->samples_out[i] = ad->samples_in[i] >> 16; | ||
| } | ||
| } | ||
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| // pa_simple_write always consumes the entire buffer | ||
|
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| 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) { | ||
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| // 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; | ||
| } | ||
| } | ||
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| ad->thread_exited = true; | ||
| } | ||
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| void AudioDriverPulseAudio::start() { | ||
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| active = true; | ||
| } | ||
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| int AudioDriverPulseAudio::get_mix_rate() const { | ||
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| return mix_rate; | ||
| } | ||
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| AudioDriverSW::OutputFormat AudioDriverPulseAudio::get_output_format() const { | ||
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| return output_format; | ||
| } | ||
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| void AudioDriverPulseAudio::lock() { | ||
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| if (!thread || !mutex) | ||
| return; | ||
| mutex->lock(); | ||
| } | ||
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| void AudioDriverPulseAudio::unlock() { | ||
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| if (!thread || !mutex) | ||
| return; | ||
| mutex->unlock(); | ||
| } | ||
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| void AudioDriverPulseAudio::finish() { | ||
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| if (!thread) | ||
| return; | ||
|
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| exit_thread = true; | ||
| Thread::wait_to_finish(thread); | ||
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| if (pulse) | ||
| pa_simple_free(pulse); | ||
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| if (samples_in) { | ||
| memdelete_arr(samples_in); | ||
| memdelete_arr(samples_out); | ||
| }; | ||
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| memdelete(thread); | ||
| if (mutex) { | ||
| memdelete(mutex); | ||
| mutex = NULL; | ||
| } | ||
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| thread = NULL; | ||
| } | ||
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| AudioDriverPulseAudio::AudioDriverPulseAudio() { | ||
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| mutex = NULL; | ||
| thread = NULL; | ||
| pulse = NULL; | ||
| } | ||
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| AudioDriverPulseAudio::~AudioDriverPulseAudio() { | ||
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| } | ||
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| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -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" | ||
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| #ifdef PULSEAUDIO_ENABLED | ||
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| #include "core/os/thread.h" | ||
| #include "core/os/mutex.h" | ||
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| #include <pulse/simple.h> | ||
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| class AudioDriverPulseAudio : public AudioDriverSW { | ||
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| Thread* thread; | ||
| Mutex* mutex; | ||
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| pa_simple* pulse; | ||
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| int32_t* samples_in; | ||
| int16_t* samples_out; | ||
|
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| static void thread_func(void* p_udata); | ||
|
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| unsigned int mix_rate; | ||
| OutputFormat output_format; | ||
|
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| unsigned int buffer_size; | ||
| int channels; | ||
|
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| bool active; | ||
| bool thread_exited; | ||
| mutable bool exit_thread; | ||
| bool pcm_open; | ||
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| public: | ||
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| const char* get_name() const { | ||
| return "PulseAudio"; | ||
| }; | ||
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| 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(); | ||
|
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| AudioDriverPulseAudio(); | ||
| ~AudioDriverPulseAudio(); | ||
| }; | ||
|
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| #endif |
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