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(libretro-test) Implement audio callback

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This commit is contained in:
twinaphex 2014-01-26 18:11:09 +01:00
parent 57e48f7ee2
commit 58b81dff2a
1 changed files with 25 additions and 12 deletions
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37
libretro-test/libretro-test.c
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@ -8,6 +8,7 @@
static uint16_t *frame_buf;
static struct retro_log_callback logging;
static bool use_audio_cb;
static void fallback_log(enum retro_log_level level, const char *fmt, ...)
{
@ -234,16 +235,6 @@ static void render_checkered(void)
video_cb(frame_buf, 320, 240, 320 << 1);
}
static void render_audio(void)
{
for (unsigned i = 0; i < 30000 / 60; i++, phase++)
{
int16_t val = 0x800 * sinf(2.0f * M_PI * phase * 300.0f / 30000.0f);
audio_cb(val, val);
}
phase %= 100;
}
static void check_variables(void)
{
@ -259,11 +250,28 @@ static void check_variables(void)
logging.log(RETRO_LOG_INFO, "Key -> Val: %s -> %s.\n", var.key, var.value);
}
static void audio_callback(void)
{
for (unsigned i = 0; i < 30000 / 60; i++, phase++)
{
int16_t val = 0x800 * sinf(2.0f * M_PI * phase * 300.0f / 30000.0f);
audio_cb(val, val);
}
phase %= 100;
}
static void audio_set_state(bool enable)
{
(void)enable;
}
void retro_run(void)
{
update_input();
render_checkered();
render_audio();
if (!use_audio_cb)
audio_callback();
bool updated = false;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
@ -277,6 +285,7 @@ static void keyboard_cb(bool down, unsigned keycode,
down ? "yes" : "no", keycode, character, mod);
}
bool retro_load_game(const struct retro_game_info *info)
{
struct retro_input_descriptor desc[] = {
@ -303,6 +312,9 @@ bool retro_load_game(const struct retro_game_info *info)
else
logging.log(RETRO_LOG_INFO, "Rumble environment not supported.\n");
struct retro_audio_callback audio_cb = { audio_callback, audio_set_state };
use_audio_cb = environ_cb(RETRO_ENVIRONMENT_SET_AUDIO_CALLBACK, &audio_cb);
check_variables();
(void)info;
@ -310,7 +322,8 @@ bool retro_load_game(const struct retro_game_info *info)
}
void retro_unload_game(void)
{}
{
}
unsigned retro_get_region(void)
{