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remove single_dual mode, code cleanup

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radius 2019-01-06 17:09:37 -05:00
parent c266e4045b
commit e2d9a353a0
1 changed files with 158 additions and 270 deletions
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148
libretro/libretro.c
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@ -77,12 +77,6 @@ enum audio_out {
GB_2 GB_2
}; };
enum mode{
MODE_SINGLE_GAME,
MODE_SINGLE_GAME_DUAL,
MODE_DUAL_GAME
};
static enum model model[2]; static enum model model[2];
static enum model auto_model = MODEL_CGB; static enum model auto_model = MODEL_CGB;
@ -101,11 +95,7 @@ static bool initialized = false;
static unsigned screen_layout = 0; static unsigned screen_layout = 0;
static unsigned audio_out = 0; static unsigned audio_out = 0;
static enum mode mode = MODE_SINGLE_GAME;
static bool geometry_updated = false; static bool geometry_updated = false;
static bool sameboy_dual = false;
static bool link_cable_emulation = false; static bool link_cable_emulation = false;
/*static bool infrared_emulation = false;*/ /*static bool infrared_emulation = false;*/
@ -132,28 +122,8 @@ static void fallback_log(enum retro_log_level level, const char *fmt, ...)
static struct retro_rumble_interface rumble; static struct retro_rumble_interface rumble;
static void extract_basename(char *buf, const char *path, size_t size)
{
const char *base = strrchr(path, '/');
if (!base)
base = strrchr(path, '\\');
if (!base)
base = path;
if (*base == '\\' || *base == '/')
base++;
strncpy(buf, base, size - 1);
buf[size - 1] = '\0';
char *ext = strrchr(buf, '.');
if (ext)
*ext = '\0';
}
static void GB_update_keys_status(GB_gameboy_t *gb, unsigned port) static void GB_update_keys_status(GB_gameboy_t *gb, unsigned port)
{ {
input_poll_cb(); input_poll_cb();
GB_set_key_state(gb, GB_KEY_RIGHT,input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT)); GB_set_key_state(gb, GB_KEY_RIGHT,input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT));
@ -169,7 +139,6 @@ static void GB_update_keys_status(GB_gameboy_t *gb, unsigned port)
rumble.set_rumble_state(port, RETRO_RUMBLE_STRONG, 65535); rumble.set_rumble_state(port, RETRO_RUMBLE_STRONG, 65535);
else else
rumble.set_rumble_state(port, RETRO_RUMBLE_STRONG, 0); rumble.set_rumble_state(port, RETRO_RUMBLE_STRONG, 0);
} }
@ -238,26 +207,9 @@ static retro_environment_t environ_cb;
/* variables for single cart mode */ /* variables for single cart mode */
static const struct retro_variable vars_single[] = { static const struct retro_variable vars_single[] = {
{ "sameboy_dual", "Single cart dual mode (reload); disabled|enabled" },
{ "sameboy_color_correction_mode", "Color correction; off|correct curves|emulate hardware|preserve brightness" }, { "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_high_pass_filter_mode", "High-pass filter; off|accurate|remove dc offset" },
{ "sameboy_model", "Emulated model; Game Boy Color|Game Boy Advance|Auto|Game Boy|Super Game Boy|Super Game Boy 2" }, { "sameboy_model", "Emulated model; Auto|Game Boy|Game Boy Color|Game Boy Advance|Super Game Boy|Super Game Boy 2" },
{ NULL }
};
/* variables for single cart dual gameboy mode */
static const struct retro_variable vars_single_dual[] = {
{ "sameboy_dual", "Single cart dual mode (reload); disabled|enabled" },
{ "sameboy_link", "Link cable emulation; enabled|disabled" },
/*{ "sameboy_ir", "Infrared Sensor Emulation; disabled|enabled" },*/
{ "sameboy_screen_layout", "Screen layout; top-down|left-right" },
{ "sameboy_audio_output", "Audio output; Game Boy #1|Game Boy #2" },
{ "sameboy_model_1", "Emulated model for Game Boy #1; Game Boy Color|Game Boy Advance|Auto|Game Boy" },
{ "sameboy_model_2", "Emulated model for Game Boy #2; Game Boy Color|Game Boy Advance|Auto|Game Boy" },
{ "sameboy_color_correction_mode_1", "Color correction for Game Boy #1; off|correct curves|emulate hardware|preserve brightness" },
{ "sameboy_color_correction_mode_2", "Color correction for Game Boy #2; off|correct curves|emulate hardware|preserve brightness" },
{ "sameboy_high_pass_filter_mode_1", "High-pass filter for Game Boy #1; off|accurate|remove dc offset" },
{ "sameboy_high_pass_filter_mode_2", "High-pass filter for Game Boy #2; off|accurate|remove dc offset" },
{ NULL } { NULL }
}; };
@ -267,8 +219,8 @@ static const struct retro_variable vars_dual[] = {
/*{ "sameboy_ir", "Infrared Sensor Emulation; disabled|enabled" },*/ /*{ "sameboy_ir", "Infrared Sensor Emulation; disabled|enabled" },*/
{ "sameboy_screen_layout", "Screen layout; top-down|left-right" }, { "sameboy_screen_layout", "Screen layout; top-down|left-right" },
{ "sameboy_audio_output", "Audio output; Game Boy #1|Game Boy #2" }, { "sameboy_audio_output", "Audio output; Game Boy #1|Game Boy #2" },
{ "sameboy_model_1", "Emulated model for Game Boy #1; Game Boy Color|Game Boy Advance|Auto|Game Boy" }, { "sameboy_model_1", "Emulated model for Game Boy #1; Auto|Game Boy|Game Boy Color|Game Boy Advance" },
{ "sameboy_model_2", "Emulated model for Game Boy #2; Game Boy Color|Game Boy Advance|Auto|Game Boy" }, { "sameboy_model_2", "Emulated model for Game Boy #2; Auto|Game Boy|Game Boy Color|Game Boy Advance" },
{ "sameboy_color_correction_mode_1", "Color correction for Game Boy #1; off|correct curves|emulate hardware|preserve brightness" }, { "sameboy_color_correction_mode_1", "Color correction for Game Boy #1; off|correct curves|emulate hardware|preserve brightness" },
{ "sameboy_color_correction_mode_2", "Color correction for Game Boy #2; off|correct curves|emulate hardware|preserve brightness" }, { "sameboy_color_correction_mode_2", "Color correction for Game Boy #2; off|correct curves|emulate hardware|preserve brightness" },
{ "sameboy_high_pass_filter_mode_1", "High-pass filter for Game Boy #1; off|accurate|remove dc offset" }, { "sameboy_high_pass_filter_mode_1", "High-pass filter for Game Boy #1; off|accurate|remove dc offset" },
@ -408,10 +360,10 @@ static void init_for_current_model(unsigned id)
environ_cb(RETRO_ENVIRONMENT_SET_MEMORY_MAPS, &mmaps); environ_cb(RETRO_ENVIRONMENT_SET_MEMORY_MAPS, &mmaps);
} }
static void check_variables(bool link) static void check_variables()
{ {
struct retro_variable var = {0}; struct retro_variable var = {0};
if (!link) if (emulated_devices == 1)
{ {
var.key = "sameboy_color_correction_mode"; var.key = "sameboy_color_correction_mode";
var.value = NULL; var.value = NULL;
@ -569,8 +521,6 @@ static void check_variables(bool link)
} }
} }
}
var.key = "sameboy_screen_layout"; var.key = "sameboy_screen_layout";
var.value = NULL; var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
@ -583,16 +533,6 @@ static void check_variables(bool link)
geometry_updated = true; geometry_updated = true;
} }
var.key = "sameboy_dual";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (strcmp(var.value, "enabled") == 0)
sameboy_dual = true;
else
sameboy_dual = false;
}
var.key = "sameboy_link"; var.key = "sameboy_link";
var.value = NULL; var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
@ -618,6 +558,7 @@ static void check_variables(bool link)
audio_out = GB_2; audio_out = GB_2;
} }
} }
}
void retro_init(void) void retro_init(void)
{ {
@ -701,7 +642,7 @@ void retro_get_system_av_info(struct retro_system_av_info *info)
struct retro_game_geometry geom; struct retro_game_geometry geom;
struct retro_system_timing timing = { FRAME_RATE, AUDIO_FREQUENCY }; struct retro_system_timing timing = { FRAME_RATE, AUDIO_FREQUENCY };
if (sameboy_dual) if (emulated_devices == 2)
{ {
if (screen_layout == LAYOUT_TOP_DOWN) { if (screen_layout == LAYOUT_TOP_DOWN) {
geom.base_width = VIDEO_WIDTH; geom.base_width = VIDEO_WIDTH;
@ -799,7 +740,7 @@ void retro_run(void)
return; return;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
check_variables(emulated_devices == 2 ? true : false); check_variables();
GB_update_keys_status(&gameboy[0], 0); GB_update_keys_status(&gameboy[0], 0);
if (emulated_devices == 2) if (emulated_devices == 2)
@ -824,7 +765,7 @@ void retro_run(void)
log_cb(RETRO_LOG_DEBUG, "%d\n", x); log_cb(RETRO_LOG_DEBUG, "%d\n", x);
} }
if (sameboy_dual) if (emulated_devices == 2)
{ {
if (screen_layout == LAYOUT_TOP_DOWN) { if (screen_layout == LAYOUT_TOP_DOWN) {
video_cb(frame_buf, VIDEO_WIDTH, VIDEO_HEIGHT * emulated_devices, VIDEO_WIDTH * sizeof(uint32_t)); video_cb(frame_buf, VIDEO_WIDTH, VIDEO_HEIGHT * emulated_devices, VIDEO_WIDTH * sizeof(uint32_t));
@ -856,17 +797,7 @@ void retro_run(void)
bool retro_load_game(const struct retro_game_info *info) bool retro_load_game(const struct retro_game_info *info)
{ {
environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars_single); environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars_single);
check_variables(false); check_variables();
if (sameboy_dual)
{
emulated_devices = 2;
mode = MODE_SINGLE_GAME_DUAL;
environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars_single_dual);
check_variables(true);
}
else
mode = MODE_SINGLE_GAME;
frame_buf = (uint32_t*)malloc(SGB_VIDEO_PIXELS* emulated_devices * sizeof(uint32_t)); frame_buf = (uint32_t*)malloc(SGB_VIDEO_PIXELS* emulated_devices * sizeof(uint32_t));
memset(frame_buf, 0, SGB_VIDEO_PIXELS * emulated_devices * sizeof(uint32_t)); memset(frame_buf, 0, SGB_VIDEO_PIXELS * emulated_devices * sizeof(uint32_t));
@ -899,37 +830,12 @@ bool retro_load_game(const struct retro_game_info *info)
else else
log_cb(RETRO_LOG_INFO, "Rumble environment not supported\n"); log_cb(RETRO_LOG_INFO, "Rumble environment not supported\n");
check_variables(emulated_devices == 2 ? true : false); check_variables();
/* hack: use upstream's file based I/O for Game Boy 2 battery in single cart mode */
if (mode == MODE_SINGLE_GAME_DUAL)
{
char path[PATH_MAX];
char file[PATH_MAX];
extract_basename(file, retro_game_path, sizeof(file));
snprintf (path, sizeof(path), "%s%c%s.srm.2", retro_save_directory, slash, file);
log_cb(RETRO_LOG_INFO, "Loading battery for Game Boy 2 from: %s\n", path);
GB_load_battery(&gameboy[1], path);
}
return true; return true;
} }
void retro_unload_game(void) void retro_unload_game(void)
{ {
/* hack: use upstream's file based I/O for Game Boy 2 battery in single cart mode */
if (mode == MODE_SINGLE_GAME_DUAL)
{
char path[PATH_MAX];
char file[PATH_MAX];
extract_basename(file, retro_game_path, sizeof(file));
snprintf (path, sizeof(path), "%s%c%s.srm.2", retro_save_directory, slash, file);
log_cb(RETRO_LOG_INFO, "Saving battery for Game Boy 2 to: %s\n", path);
GB_save_battery(&gameboy[1], path);
}
for (int i = 0; i < emulated_devices; i++) for (int i = 0; i < emulated_devices; i++)
GB_free(&gameboy[i]); GB_free(&gameboy[i]);
} }
@ -943,15 +849,12 @@ bool retro_load_game_special(unsigned type, const struct retro_game_info *info,
{ {
if (type == RETRO_GAME_TYPE_GAMEBOY_LINK_2P) if (type == RETRO_GAME_TYPE_GAMEBOY_LINK_2P)
{
emulated_devices = 2; emulated_devices = 2;
mode = MODE_DUAL_GAME;
}
else else
return false; /* all other types are unhandled for now */ return false; /* all other types are unhandled for now */
environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars_dual); environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars_dual);
check_variables(true); check_variables();
frame_buf = (uint32_t*)malloc(emulated_devices * VIDEO_PIXELS * sizeof(uint32_t)); frame_buf = (uint32_t*)malloc(emulated_devices * VIDEO_PIXELS * sizeof(uint32_t));
frame_buf_copy = (uint32_t*)malloc(emulated_devices * VIDEO_PIXELS * sizeof(uint32_t)); frame_buf_copy = (uint32_t*)malloc(emulated_devices * VIDEO_PIXELS * sizeof(uint32_t));
@ -987,7 +890,7 @@ bool retro_load_game_special(unsigned type, const struct retro_game_info *info,
else else
log_cb(RETRO_LOG_INFO, "Rumble environment not supported\n"); log_cb(RETRO_LOG_INFO, "Rumble environment not supported\n");
check_variables(emulated_devices == 2 ? true : false); check_variables();
return true; return true;
} }
@ -1050,10 +953,7 @@ bool retro_unserialize(const void *data, size_t size)
void *retro_get_memory_data(unsigned type) void *retro_get_memory_data(unsigned type)
{ {
void *data = NULL; void *data = NULL;
switch(mode) if (emulated_devices == 1)
{
case MODE_SINGLE_GAME:
case MODE_SINGLE_GAME_DUAL: /* todo: hook this properly */
{ {
switch(type) switch(type)
{ {
@ -1079,8 +979,7 @@ void *retro_get_memory_data(unsigned type)
break; break;
} }
} }
break; else
case MODE_DUAL_GAME:
{ {
switch (type) switch (type)
{ {
@ -1112,20 +1011,14 @@ void *retro_get_memory_data(unsigned type)
break; break;
} }
} }
break;
default:
break;
}
return data; return data;
} }
size_t retro_get_memory_size(unsigned type) size_t retro_get_memory_size(unsigned type)
{ {
size_t size = 0; size_t size = 0;
switch(mode) if (emulated_devices == 1)
{
case MODE_SINGLE_GAME:
case MODE_SINGLE_GAME_DUAL: /* todo: hook this properly */
{ {
switch(type) switch(type)
{ {
@ -1151,8 +1044,7 @@ size_t retro_get_memory_size(unsigned type)
break; break;
} }
} }
break; else
case MODE_DUAL_GAME:
{ {
switch (type) switch (type)
{ {
@ -1180,10 +1072,6 @@ size_t retro_get_memory_size(unsigned type)
break; break;
} }
} }
break;
default:
break;
}
return size; return size;
} }