Maximilian Mader
e3c8f1c1d4
To compile the OpenAL driver specify `ENABLE_OPENAL=1` when invoking `make`.
113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
#include <stdbool.h>
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#include <stddef.h>
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#include <Core/gb.h>
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#include <stdlib.h>
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#include "audio/audio.h"
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#include "configuration.h"
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#define unlikely(x) __builtin_expect((bool)(x), 0)
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static const GB_audio_driver_t *driver = NULL;
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bool GB_audio_init(void)
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{
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const GB_audio_driver_t *drivers[] = {
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#ifdef _WIN32
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GB_AUDIO_DRIVER_REF(XAudio2),
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GB_AUDIO_DRIVER_REF(XAudio2_7),
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#endif
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GB_AUDIO_DRIVER_REF(SDL),
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#ifdef ENABLE_OPENAL
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GB_AUDIO_DRIVER_REF(OpenAL),
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#endif
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};
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// First try the preferred driver
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for (unsigned i = 0; i < sizeof(drivers) / sizeof(drivers[0]); i++) {
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driver = drivers[i];
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if (strcmp(driver->name, configuration.audio_driver) != 0) {
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continue;
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}
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if (driver->audio_init()) {
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if (driver->audio_deinit) {
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atexit(driver->audio_deinit);
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}
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return true;
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}
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}
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// Else go by priority
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for (unsigned i = 0; i < sizeof(drivers) / sizeof(drivers[0]); i++) {
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driver = drivers[i];
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if (driver->audio_init()) {
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if (driver->audio_deinit) {
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atexit(driver->audio_deinit);
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}
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return true;
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}
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}
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driver = NULL;
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return false;
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}
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bool GB_audio_is_playing(void)
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{
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if (unlikely(!driver)) return false;
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return driver->audio_is_playing();
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}
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void GB_audio_set_paused(bool paused)
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{
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if (unlikely(!driver)) return;
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return driver->audio_set_paused(paused);
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}
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void GB_audio_clear_queue(void)
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{
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if (unlikely(!driver)) return;
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return driver->audio_clear_queue();
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}
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unsigned GB_audio_get_frequency(void)
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{
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if (unlikely(!driver)) return 0;
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return driver->audio_get_frequency();
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}
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size_t GB_audio_get_queue_length(void)
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{
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if (unlikely(!driver)) return 0;
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return driver->audio_get_queue_length();
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}
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void GB_audio_queue_sample(GB_sample_t *sample)
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{
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if (unlikely(!driver)) return;
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return driver->audio_queue_sample(sample);
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}
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const char *GB_audio_driver_name(void)
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{
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if (unlikely(!driver)) return "None";
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return driver->name;
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}
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const char *GB_audio_driver_name_at_index(unsigned index)
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{
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const GB_audio_driver_t *drivers[] = {
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#ifdef _WIN32
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GB_AUDIO_DRIVER_REF(XAudio2),
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GB_AUDIO_DRIVER_REF(XAudio2_7),
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#endif
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GB_AUDIO_DRIVER_REF(SDL),
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#ifdef ENABLE_OPENAL
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GB_AUDIO_DRIVER_REF(OpenAL),
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#endif
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};
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if (index >= sizeof(drivers) / sizeof(drivers[0])) {
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return "";
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}
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return drivers[index]->name;
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}
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