godot/platform/haiku/audio_driver_media_kit.cpp
2015-08-14 22:52:28 +03:00

144 lines
4.4 KiB
C++

/*************************************************************************/
/* audio_driver_media_kit.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_media_kit.h"
#ifdef MEDIA_KIT_ENABLED
#include "globals.h"
int32_t* AudioDriverMediaKit::samples_in = NULL;
Error AudioDriverMediaKit::init() {
active = false;
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);
media_raw_audio_format format;
format = media_raw_audio_format::wildcard;
format.frame_rate = mix_rate;
format.channel_count = channels;
format.format = media_raw_audio_format::B_AUDIO_INT;
format.byte_order = B_MEDIA_LITTLE_ENDIAN;
format.buffer_size = buffer_size * sizeof(int32_t) * channels;
player = new BSoundPlayer(
&format,
"godot_sound_server",
AudioDriverMediaKit::PlayBuffer,
NULL,
this
);
if (player->InitCheck() != B_OK) {
fprintf(stderr, "MediaKit ERR: can not create a BSoundPlayer instance\n");
ERR_FAIL_COND_V(player == NULL, ERR_CANT_OPEN);
}
mutex = Mutex::create();
player->Start();
return OK;
}
void AudioDriverMediaKit::PlayBuffer(void* cookie, void* buffer, size_t size, const media_raw_audio_format& format) {
AudioDriverMediaKit* ad = (AudioDriverMediaKit*) cookie;
int32_t* buf = (int32_t*) buffer;
if (!ad->active) {
for (unsigned int i = 0; i < ad->buffer_size * ad->channels; i++) {
AudioDriverMediaKit::samples_in[i] = 0;
}
} else {
ad->lock();
ad->audio_server_process(ad->buffer_size, AudioDriverMediaKit::samples_in);
ad->unlock();
}
for (unsigned int i = 0; i < ad->buffer_size * ad->channels; i++) {
buf[i] = AudioDriverMediaKit::samples_in[i];
}
}
void AudioDriverMediaKit::start() {
active = true;
}
int AudioDriverMediaKit::get_mix_rate() const {
return mix_rate;
}
AudioDriverSW::OutputFormat AudioDriverMediaKit::get_output_format() const {
return output_format;
}
void AudioDriverMediaKit::lock() {
if (!mutex)
return;
mutex->lock();
}
void AudioDriverMediaKit::unlock() {
if (!mutex)
return;
mutex->unlock();
}
void AudioDriverMediaKit::finish() {
if (player)
delete player;
if (samples_in) {
memdelete_arr(samples_in);
};
if (mutex) {
memdelete(mutex);
mutex = NULL;
}
}
AudioDriverMediaKit::AudioDriverMediaKit() {
mutex = NULL;
player = NULL;
}
AudioDriverMediaKit::~AudioDriverMediaKit() {
}
#endif