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Diffstat (limited to 'platform/javascript/audio_driver_javascript.cpp')
| -rw-r--r-- | platform/javascript/audio_driver_javascript.cpp | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/platform/javascript/audio_driver_javascript.cpp b/platform/javascript/audio_driver_javascript.cpp deleted file mode 100644 index d45885b8e8..0000000000 --- a/platform/javascript/audio_driver_javascript.cpp +++ /dev/null @@ -1,293 +0,0 @@ -/*************************************************************************/ -/* audio_driver_javascript.cpp */ -/*************************************************************************/ -/* This file is part of: */ -/* GODOT ENGINE */ -/* https://godotengine.org */ -/*************************************************************************/ -/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ -/* */ -/* 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_javascript.h" - -#include "core/config/project_settings.h" - -#include <emscripten.h> - -AudioDriverJavaScript::AudioContext AudioDriverJavaScript::audio_context; - -bool AudioDriverJavaScript::is_available() { - return godot_audio_is_available() != 0; -} - -void AudioDriverJavaScript::_state_change_callback(int p_state) { - AudioDriverJavaScript::audio_context.state = p_state; -} - -void AudioDriverJavaScript::_latency_update_callback(float p_latency) { - AudioDriverJavaScript::audio_context.output_latency = p_latency; -} - -void AudioDriverJavaScript::_audio_driver_process(int p_from, int p_samples) { - int32_t *stream_buffer = reinterpret_cast<int32_t *>(output_rb); - const int max_samples = memarr_len(output_rb); - - int write_pos = p_from; - int to_write = p_samples; - if (to_write == 0) { - to_write = max_samples; - } - // High part - if (write_pos + to_write > max_samples) { - const int samples_high = max_samples - write_pos; - audio_server_process(samples_high / channel_count, &stream_buffer[write_pos]); - for (int i = write_pos; i < max_samples; i++) { - output_rb[i] = float(stream_buffer[i] >> 16) / 32768.f; - } - to_write -= samples_high; - write_pos = 0; - } - // Leftover - audio_server_process(to_write / channel_count, &stream_buffer[write_pos]); - for (int i = write_pos; i < write_pos + to_write; i++) { - output_rb[i] = float(stream_buffer[i] >> 16) / 32768.f; - } -} - -void AudioDriverJavaScript::_audio_driver_capture(int p_from, int p_samples) { - if (get_input_buffer().size() == 0) { - return; // Input capture stopped. - } - const int max_samples = memarr_len(input_rb); - - int read_pos = p_from; - int to_read = p_samples; - if (to_read == 0) { - to_read = max_samples; - } - // High part - if (read_pos + to_read > max_samples) { - const int samples_high = max_samples - read_pos; - for (int i = read_pos; i < max_samples; i++) { - input_buffer_write(int32_t(input_rb[i] * 32768.f) * (1U << 16)); - } - to_read -= samples_high; - read_pos = 0; - } - // Leftover - for (int i = read_pos; i < read_pos + to_read; i++) { - input_buffer_write(int32_t(input_rb[i] * 32768.f) * (1U << 16)); - } -} - -Error AudioDriverJavaScript::init() { - int latency = GLOBAL_GET("audio/driver/output_latency"); - if (!audio_context.inited) { - audio_context.mix_rate = GLOBAL_GET("audio/driver/mix_rate"); - audio_context.channel_count = godot_audio_init(&audio_context.mix_rate, latency, &_state_change_callback, &_latency_update_callback); - audio_context.inited = true; - } - mix_rate = audio_context.mix_rate; - channel_count = audio_context.channel_count; - buffer_length = closest_power_of_2((latency * mix_rate / 1000)); - Error err = create(buffer_length, channel_count); - if (err != OK) { - return err; - } - if (output_rb) { - memdelete_arr(output_rb); - } - const size_t array_size = buffer_length * (size_t)channel_count; - output_rb = memnew_arr(float, array_size); - if (!output_rb) { - return ERR_OUT_OF_MEMORY; - } - if (input_rb) { - memdelete_arr(input_rb); - } - input_rb = memnew_arr(float, array_size); - if (!input_rb) { - return ERR_OUT_OF_MEMORY; - } - return OK; -} - -void AudioDriverJavaScript::start() { - start(output_rb, memarr_len(output_rb), input_rb, memarr_len(input_rb)); -} - -void AudioDriverJavaScript::resume() { - if (audio_context.state == 0) { // 'suspended' - godot_audio_resume(); - } -} - -float AudioDriverJavaScript::get_latency() { - return audio_context.output_latency + (float(buffer_length) / mix_rate); -} - -int AudioDriverJavaScript::get_mix_rate() const { - return mix_rate; -} - -AudioDriver::SpeakerMode AudioDriverJavaScript::get_speaker_mode() const { - return get_speaker_mode_by_total_channels(channel_count); -} - -void AudioDriverJavaScript::finish() { - finish_driver(); - if (output_rb) { - memdelete_arr(output_rb); - output_rb = nullptr; - } - if (input_rb) { - memdelete_arr(input_rb); - input_rb = nullptr; - } -} - -Error AudioDriverJavaScript::capture_start() { - lock(); - input_buffer_init(buffer_length); - unlock(); - if (godot_audio_capture_start()) { - return FAILED; - } - return OK; -} - -Error AudioDriverJavaScript::capture_stop() { - godot_audio_capture_stop(); - lock(); - input_buffer.clear(); - unlock(); - return OK; -} - -#ifdef NO_THREADS -/// ScriptProcessorNode implementation -AudioDriverScriptProcessor *AudioDriverScriptProcessor::singleton = nullptr; - -void AudioDriverScriptProcessor::_process_callback() { - AudioDriverScriptProcessor::singleton->_audio_driver_capture(); - AudioDriverScriptProcessor::singleton->_audio_driver_process(); -} - -Error AudioDriverScriptProcessor::create(int &p_buffer_samples, int p_channels) { - if (!godot_audio_has_script_processor()) { - return ERR_UNAVAILABLE; - } - return (Error)godot_audio_script_create(&p_buffer_samples, p_channels); -} - -void AudioDriverScriptProcessor::start(float *p_out_buf, int p_out_buf_size, float *p_in_buf, int p_in_buf_size) { - godot_audio_script_start(p_in_buf, p_in_buf_size, p_out_buf, p_out_buf_size, &_process_callback); -} - -/// AudioWorkletNode implementation (no threads) -AudioDriverWorklet *AudioDriverWorklet::singleton = nullptr; - -Error AudioDriverWorklet::create(int &p_buffer_size, int p_channels) { - if (!godot_audio_has_worklet()) { - return ERR_UNAVAILABLE; - } - return (Error)godot_audio_worklet_create(p_channels); -} - -void AudioDriverWorklet::start(float *p_out_buf, int p_out_buf_size, float *p_in_buf, int p_in_buf_size) { - _audio_driver_process(); - godot_audio_worklet_start_no_threads(p_out_buf, p_out_buf_size, &_process_callback, p_in_buf, p_in_buf_size, &_capture_callback); -} - -void AudioDriverWorklet::_process_callback(int p_pos, int p_samples) { - AudioDriverWorklet *driver = AudioDriverWorklet::singleton; - driver->_audio_driver_process(p_pos, p_samples); -} - -void AudioDriverWorklet::_capture_callback(int p_pos, int p_samples) { - AudioDriverWorklet *driver = AudioDriverWorklet::singleton; - driver->_audio_driver_capture(p_pos, p_samples); -} -#else -/// AudioWorkletNode implementation (threads) -void AudioDriverWorklet::_audio_thread_func(void *p_data) { - AudioDriverWorklet *driver = static_cast<AudioDriverWorklet *>(p_data); - const int out_samples = memarr_len(driver->get_output_rb()); - const int in_samples = memarr_len(driver->get_input_rb()); - int wpos = 0; - int to_write = out_samples; - int rpos = 0; - int to_read = 0; - int32_t step = 0; - while (!driver->quit) { - if (to_read) { - driver->lock(); - driver->_audio_driver_capture(rpos, to_read); - godot_audio_worklet_state_add(driver->state, STATE_SAMPLES_IN, -to_read); - driver->unlock(); - rpos += to_read; - if (rpos >= in_samples) { - rpos -= in_samples; - } - } - if (to_write) { - driver->lock(); - driver->_audio_driver_process(wpos, to_write); - godot_audio_worklet_state_add(driver->state, STATE_SAMPLES_OUT, to_write); - driver->unlock(); - wpos += to_write; - if (wpos >= out_samples) { - wpos -= out_samples; - } - } - step = godot_audio_worklet_state_wait(driver->state, STATE_PROCESS, step, 1); - to_write = out_samples - godot_audio_worklet_state_get(driver->state, STATE_SAMPLES_OUT); - to_read = godot_audio_worklet_state_get(driver->state, STATE_SAMPLES_IN); - } -} - -Error AudioDriverWorklet::create(int &p_buffer_size, int p_channels) { - if (!godot_audio_has_worklet()) { - return ERR_UNAVAILABLE; - } - return (Error)godot_audio_worklet_create(p_channels); -} - -void AudioDriverWorklet::start(float *p_out_buf, int p_out_buf_size, float *p_in_buf, int p_in_buf_size) { - godot_audio_worklet_start(p_in_buf, p_in_buf_size, p_out_buf, p_out_buf_size, state); - thread.start(_audio_thread_func, this); -} - -void AudioDriverWorklet::lock() { - mutex.lock(); -} - -void AudioDriverWorklet::unlock() { - mutex.unlock(); -} - -void AudioDriverWorklet::finish_driver() { - quit = true; // Ask thread to quit. - thread.wait_to_finish(); -} -#endif |