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add audio output selection

This commit is contained in:
radius 2018-02-01 10:03:40 -05:00
parent 945ee0bdb3
commit 408bf5baab
1 changed files with 25 additions and 7 deletions
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32
libretro/libretro.c
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@ -46,11 +46,16 @@ enum model {
static enum model model = MODEL_AUTO;
static enum model auto_model = MODEL_CGB;
enum layout {
enum screen_layout {
LAYOUT_TOP_DOWN,
LAYOUT_LEFT_RIGHT
};
enum audio_out {
GB_1,
GB_2
};
static enum model model[2];
static uint32_t *frame_buf = NULL;
static struct retro_log_callback logging;
@ -63,7 +68,8 @@ static retro_input_state_t input_state_cb;
static unsigned emulated_devices = 1;
static unsigned pre_init = 1;
static unsigned layout = 0;
static unsigned screen_layout = 0;
static unsigned audio_out = 0;
signed short soundbuf[1024 * 2];
@ -130,14 +136,16 @@ static void vblank1(GB_gameboy_t *gb)
{
vblank1_occurred = true;
GB_update_keys_status(gb, 0);
audio_callback(gb);
if (audio_out == GB_1)
audio_callback(gb);
}
static void vblank2(GB_gameboy_t *gb)
{
vblank2_occurred = true;
GB_update_keys_status(gb, 1);
//audio_callback(gb);
if (audio_out == GB_2)
audio_callback(gb);
}
static uint8_t byte_to_send1 = 0xFF, byte_to_send2 = 0xFF;
@ -175,7 +183,6 @@ static retro_environment_t environ_cb;
static const struct retro_variable vars[] = {
{ "sameboy_link", "Link Cable (restart); disabled|enabled" },
{ "sameboy_link_layout", "Screen Layout; top-down|left-right" },
{ "sameboy_color_correction_mode", "Color Correction; off|correct curves|emulate hardware|preserve brightness" },
{ "sameboy_high_pass_filter_mode", "High Pass Filter; off|accurate|remove dc offset" },
{ "sameboy_model", "Emulated Model; Game Boy Color|Game Boy Advance|Game Boy" },
@ -184,6 +191,7 @@ static const struct retro_variable vars[] = {
static const struct retro_variable vars_link[] = {
{ "sameboy_link", "Link Cable; disabled|enabled" },
{ "sameboy_link_layout", "Screen Layout; top-down|left-right" },
{ "sameboy_audio_output", "Audio output; GB #1|GB #2" },
{ "sameboy_model_1", "Emulated Model for GB #1; Game Boy Color|Game Boy Advance|Game Boy" },
{ "sameboy_model_2", "Emulated Model for GB #2; Game Boy Color|Game Boy Advance|Game Boy" },
{ "sameboy_color_correction_mode_1", "Color Correction for GB #1; off|correct curves|emulate hardware|preserve brightness" },
@ -441,9 +449,19 @@ static void check_variables(bool link)
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (strcmp(var.value, "top-down") == 0)
layout = LAYOUT_TOP_DOWN;
screen_layout = LAYOUT_TOP_DOWN;
else
layout = LAYOUT_LEFT_RIGHT;
screen_layout = LAYOUT_LEFT_RIGHT;
}
var.key = "sameboy_audio_output";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (strcmp(var.value, "GB #1") == 0)
audio_out = GB_1;
else
audio_out = GB_2;
}
}