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SameBoy
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SameBoy/SDL/main.c

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#include <stdbool.h>
#include <stdio.h>
#include <signal.h>
#include <ctype.h>
#include <unistd.h>
#include <errno.h>
#include <limits.h>
#include <OpenDialog/open_dialog.h>
#include <SDL.h>
#include <Core/gb.h>
#include "utils.h"
#include "gui.h"
#include "shader.h"
#include "audio/audio.h"
#include "console.h"
#include <fcntl.h>
#ifdef _WIN32
#include <Windows.h>
#include "windows_associations.h"
#endif
static bool stop_on_start = false;
GB_gameboy_t gb;
static bool paused = false;
static uint32_t pixel_buffer_1[256 * 224], pixel_buffer_2[256 * 224];
static uint32_t *active_pixel_buffer = pixel_buffer_1, *previous_pixel_buffer = pixel_buffer_2;
static bool underclock_down = false, rewind_down = false, do_rewind = false, rewind_paused = false, turbo_down = false;
static bool rapid_a = false, rapid_b = false;
static uint8_t rapid_a_count = 0, rapid_b_count = 0;
static double clock_mutliplier = 1.0;
char *filename = NULL;
static typeof(free) *free_function = NULL;
static char *battery_save_path_ptr = NULL;
static SDL_GLContext gl_context = NULL;
static bool console_supported = false;
bool uses_gl(void)
{
return gl_context;
}
void rerender_screen(void)
{
render_texture(active_pixel_buffer, configuration.blending_mode? previous_pixel_buffer : NULL);
#ifdef _WIN32
/* Required for some Windows 10 machines, god knows why */
render_texture(active_pixel_buffer, configuration.blending_mode? previous_pixel_buffer : NULL);
#endif
}
void set_filename(const char *new_filename, typeof(free) *new_free_function)
{
if (filename && free_function) {
free_function(filename);
}
filename = (char *) new_filename;
free_function = new_free_function;
GB_rewind_reset(&gb);
}
static char *completer(const char *substring, uintptr_t *context)
{
if (!GB_is_inited(&gb)) return NULL;
char *temp = strdup(substring);
char *ret = GB_debugger_complete_substring(&gb, temp, context);
free(temp);
return ret;
}
static void log_callback(GB_gameboy_t *gb, const char *string, GB_log_attributes_t attributes)
{
CON_attributes_t con_attributes = {0,};
con_attributes.bold = attributes & GB_LOG_BOLD;
con_attributes.underline = attributes & GB_LOG_UNDERLINE;
if (attributes & GB_LOG_DASHED_UNDERLINE) {
while (*string) {
con_attributes.underline ^= true;
CON_attributed_printf("%c", &con_attributes, *string);
string++;
}
}
else {
CON_attributed_print(string, &con_attributes);
}
}
static void handle_eof(void)
{
CON_set_async_prompt("");
char *line = CON_readline("Quit? [y]/n > ");
if (line[0] == 'n' || line[0] == 'N') {
free(line);
CON_set_async_prompt("> ");
}
else {
exit(0);
}
}
static char *input_callback(GB_gameboy_t *gb)
{
if (CON_no_csi_mode()) {
fprintf(stdout, "> ");
fflush(stdout);
}
#ifdef _WIN32
DWORD pid;
GetWindowThreadProcessId(GetForegroundWindow(), &pid);
if (pid == GetCurrentProcessId()) {
BringWindowToTop(GetConsoleWindow());
}
#endif
retry: {
CON_set_async_prompt("Stopped> ");
char *ret = CON_readline_async();
if (!ret) {
#ifdef _WIN32
HWND window = GetConsoleWindow();
if (pending_command == GB_SDL_HIDE_DEBUGGER_COMMAND || !window) return strdup("c");
ShowWindow(window, SW_SHOW);
#endif
SDL_Event event;
SDL_WaitEvent(&event);
if (pending_command == GB_SDL_QUIT_COMMAND) {
return strdup("c");
}
switch (event.type) {
case SDL_DISPLAYEVENT:
update_swap_interval();
break;
case SDL_WINDOWEVENT: {
if (event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
screen_manually_resized = true;
update_viewport();
}
if (event.window.type == SDL_WINDOWEVENT_MOVED
#if SDL_COMPILEDVERSION > 2018
|| event.window.type == SDL_WINDOWEVENT_DISPLAY_CHANGED
#endif
) {
update_swap_interval();
}
rerender_screen();
break;
}
case SDL_QUIT:
pending_command = GB_SDL_QUIT_COMMAND;
return strdup("c");
case SDL_KEYDOWN:
fputc('\a', stdout);
fflush(stdout);
break;
default:
break;
}
goto retry;
}
if (strcmp(ret, CON_EOF) == 0) {
free(ret);
handle_eof();
goto retry;
}
else if (!CON_no_csi_mode()) {
CON_attributes_t attributes = {.bold = true};
CON_attributed_printf("> %s\n", &attributes, ret);
}
CON_set_async_prompt("> ");
return ret;
}
}
static char *async_input_callback(GB_gameboy_t *gb)
{
retry: {
char *ret = CON_readline_async();
if (ret && strcmp(ret, CON_EOF) == 0) {
handle_eof();
free(ret);
goto retry;
}
else if (ret) {
CON_attributes_t attributes = {.bold = true};
CON_attributed_printf("> %s\n", &attributes, ret);
}
return ret;
}
}
static char *captured_log = NULL;
static void log_capture_callback(GB_gameboy_t *gb, const char *string, GB_log_attributes_t attributes)
{
size_t current_len = strlen(captured_log);
size_t len_to_add = strlen(string);
captured_log = realloc(captured_log, current_len + len_to_add + 1);
memcpy(captured_log + current_len, string, len_to_add);
captured_log[current_len + len_to_add] = 0;
}
static void *start_capturing_logs(void)
{
void *previous = captured_log;
captured_log = malloc(1);
captured_log[0] = 0;
GB_set_log_callback(&gb, log_capture_callback);
return previous;
}
static void end_capturing_logs(bool show_popup, bool should_exit, uint32_t popup_flags, const char *title, void *previous)
{
if (!previous) {
GB_set_log_callback(&gb, console_supported? log_callback : NULL);
}
if (captured_log[0] != 0) {
if (show_popup) {
SDL_ShowSimpleMessageBox(popup_flags, title, captured_log, window);
}
if (should_exit) {
exit(1);
}
}
free(captured_log);
captured_log = previous;
}
static void update_palette(void)
{
GB_set_palette(&gb, current_dmg_palette());
}
static void screen_size_changed(bool resize_window)
{
SDL_DestroyTexture(texture);
texture = SDL_CreateTexture(renderer, SDL_GetWindowPixelFormat(window), SDL_TEXTUREACCESS_STREAMING,
GB_get_screen_width(&gb), GB_get_screen_height(&gb));
SDL_SetWindowMinimumSize(window, GB_get_screen_width(&gb), GB_get_screen_height(&gb));
if (resize_window) {
signed current_window_width, current_window_height;
SDL_GetWindowSize(window, &current_window_width, &current_window_height);
signed width = GB_get_screen_width(&gb) * configuration.default_scale;
signed height = GB_get_screen_height(&gb) * configuration.default_scale;
signed x, y;
SDL_GetWindowPosition(window, &x, &y);
SDL_SetWindowSize(window, width, height);
SDL_SetWindowPosition(window, x - (width - current_window_width) / 2, y - (height - current_window_height) / 2);
}
update_viewport();
}
static void open_menu(void)
{
bool audio_playing = GB_audio_is_playing();
if (audio_playing) {
GB_audio_set_paused(true);
}
size_t previous_width = GB_get_screen_width(&gb);
size_t previous_height = GB_get_screen_height(&gb);
run_gui(true);
rerender_screen();
SDL_ShowCursor(SDL_DISABLE);
if (audio_playing) {
GB_audio_set_paused(false);
}
GB_set_color_correction_mode(&gb, configuration.color_correction_mode);
GB_set_light_temperature(&gb, (configuration.color_temperature - 10.0) / 10.0);
GB_set_interference_volume(&gb, configuration.interference_volume / 100.0);
GB_set_border_mode(&gb, configuration.border_mode);
update_palette();
GB_set_highpass_filter_mode(&gb, configuration.highpass_mode);
GB_set_rewind_length(&gb, configuration.rewind_length);
GB_set_rtc_mode(&gb, configuration.rtc_mode);
GB_set_turbo_cap(&gb, configuration.turbo_cap / 4.0);
if (previous_width != GB_get_screen_width(&gb)) {
signed current_window_width, current_window_height;
SDL_GetWindowSize(window, &current_window_width, &current_window_height);
screen_size_changed(current_window_width == previous_width * configuration.default_scale &&
current_window_height == previous_height * configuration.default_scale);
}
}
static void console_line_ready(void)
{
static SDL_Event event = {
.type = SDL_USEREVENT
};
SDL_PushEvent(&event);
}
static void configure_console(void)
{
CON_set_async_prompt("> ");
CON_set_repeat_empty(true);
CON_set_line_ready_callback(console_line_ready);
GB_set_log_callback(&gb, log_callback);
GB_set_input_callback(&gb, input_callback);
GB_set_async_input_callback(&gb, async_input_callback);
}
static void handle_events(GB_gameboy_t *gb)
{
SDL_Event event;
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_DISPLAYEVENT:
update_swap_interval();
break;
case SDL_QUIT:
pending_command = GB_SDL_QUIT_COMMAND;
break;
case SDL_DROPFILE: {
if (GB_is_save_state(event.drop.file)) {
dropped_state_file = event.drop.file;
pending_command = GB_SDL_LOAD_STATE_FROM_FILE_COMMAND;
}
else {
set_filename(event.drop.file, SDL_free);
pending_command = GB_SDL_NEW_FILE_COMMAND;
}
break;
}
case SDL_WINDOWEVENT: {
if (event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
screen_manually_resized = true;
update_viewport();
}
if (event.window.type == SDL_WINDOWEVENT_MOVED
#if SDL_COMPILEDVERSION > 2018
|| event.window.type == SDL_WINDOWEVENT_DISPLAY_CHANGED
#endif
) {
update_swap_interval();
}
break;
}
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP: {
if (GB_has_accelerometer(gb) && configuration.allow_mouse_controls) {
GB_set_key_state(gb, GB_KEY_A, event.type == SDL_MOUSEBUTTONDOWN);
}
break;
}
case SDL_MOUSEMOTION: {
if (GB_has_accelerometer(gb) && configuration.allow_mouse_controls) {
signed x = event.motion.x;
signed y = event.motion.y;
convert_mouse_coordinates(&x, &y);
x = SDL_max(SDL_min(x, 160), 0);
y = SDL_max(SDL_min(y, 144), 0);
GB_set_accelerometer_values(gb, (x - 80) / -80.0, (y - 72) / -72.0);
}
break;
}
case SDL_JOYDEVICEREMOVED:
if (joystick && event.jdevice.which == SDL_JoystickInstanceID(joystick)) {
SDL_JoystickClose(joystick);
joystick = NULL;
}
case SDL_JOYDEVICEADDED:
connect_joypad();
break;
case SDL_JOYBUTTONUP:
case SDL_JOYBUTTONDOWN: {
joypad_button_t button = get_joypad_button(event.jbutton.button);
if ((GB_key_t) button < GB_KEY_MAX) {
GB_set_key_state(gb, (GB_key_t) button, event.type == SDL_JOYBUTTONDOWN);
}
else if (button == JOYPAD_BUTTON_TURBO) {
GB_audio_clear_queue();
turbo_down = event.type == SDL_JOYBUTTONDOWN;
GB_set_turbo_mode(gb, turbo_down, turbo_down && rewind_down);
SDL_GL_SetSwapInterval(turbo_down? 0 : configuration.vsync_mode);
}
else if (button == JOYPAD_BUTTON_SLOW_MOTION) {
underclock_down = event.type == SDL_JOYBUTTONDOWN;
}
else if (button == JOYPAD_BUTTON_REWIND) {
rewind_down = event.type == SDL_JOYBUTTONDOWN;
if (event.type == SDL_JOYBUTTONUP) {
rewind_paused = false;
}
GB_set_turbo_mode(gb, turbo_down, turbo_down && rewind_down);
SDL_GL_SetSwapInterval(turbo_down? 0 : configuration.vsync_mode);
}
else if (button == JOYPAD_BUTTON_MENU && event.type == SDL_JOYBUTTONDOWN) {
open_menu();
}
else if ((button == JOYPAD_BUTTON_HOTKEY_1 || button == JOYPAD_BUTTON_HOTKEY_2) && event.type == SDL_JOYBUTTONDOWN) {
hotkey_action_t action = configuration.hotkey_actions[button - JOYPAD_BUTTON_HOTKEY_1];
switch (action) {
case HOTKEY_NONE:
break;
case HOTKEY_PAUSE:
paused = !paused;
break;
case HOTKEY_MUTE:
GB_audio_set_paused(GB_audio_is_playing());
break;
case HOTKEY_RESET:
pending_command = GB_SDL_RESET_COMMAND;
break;
case HOTKEY_QUIT:
pending_command = GB_SDL_QUIT_COMMAND;
break;
default:
command_parameter = (action - HOTKEY_SAVE_STATE_1) / 2 + 1;
pending_command = ((action - HOTKEY_SAVE_STATE_1) % 2)? GB_SDL_LOAD_STATE_COMMAND:GB_SDL_SAVE_STATE_COMMAND;
break;
case HOTKEY_SAVE_STATE_10:
command_parameter = 0;
pending_command = GB_SDL_SAVE_STATE_COMMAND;
break;
case HOTKEY_LOAD_STATE_10:
command_parameter = 0;
pending_command = GB_SDL_LOAD_STATE_COMMAND;
break;
}
}
else if (button == JOYPAD_BUTTON_RAPID_A) {
rapid_a = event.type == SDL_JOYBUTTONDOWN;
rapid_a_count = 0;
GB_set_key_state(gb, GB_KEY_A, event.type == SDL_JOYBUTTONDOWN);
}
else if (button == JOYPAD_BUTTON_RAPID_B) {
rapid_b = event.type == SDL_JOYBUTTONDOWN;
rapid_b_count = 0;
GB_set_key_state(gb, GB_KEY_B, event.type == SDL_JOYBUTTONDOWN);
}
}
break;
case SDL_JOYAXISMOTION: {
static bool axis_active[2] = {false, false};
static double accel_values[2] = {0, 0};
static double axis_values[2] = {0, 0};
joypad_axis_t axis = get_joypad_axis(event.jaxis.axis);
if (axis == JOYPAD_AXISES_X) {
if (GB_has_accelerometer(gb)) {
accel_values[0] = event.jaxis.value / (double)32768.0;
GB_set_accelerometer_values(gb, -accel_values[0], -accel_values[1]);
}
else if (configuration.use_faux_analog_inputs) {
axis_values[0] = event.jaxis.value / (double)32768.0;
}
else if (event.jaxis.value > JOYSTICK_HIGH) {
axis_active[0] = true;
GB_set_use_faux_analog_inputs(gb, 0, false);
GB_set_key_state(gb, GB_KEY_RIGHT, true);
GB_set_key_state(gb, GB_KEY_LEFT, false);
}
else if (event.jaxis.value < -JOYSTICK_HIGH) {
axis_active[0] = true;
GB_set_use_faux_analog_inputs(gb, 0, false);
GB_set_key_state(gb, GB_KEY_RIGHT, false);
GB_set_key_state(gb, GB_KEY_LEFT, true);
}
else if (axis_active[0] && event.jaxis.value < JOYSTICK_LOW && event.jaxis.value > -JOYSTICK_LOW) {
axis_active[0] = false;
GB_set_key_state(gb, GB_KEY_RIGHT, false);
GB_set_key_state(gb, GB_KEY_LEFT, false);
}
}
else if (axis == JOYPAD_AXISES_Y) {
if (GB_has_accelerometer(gb)) {
accel_values[1] = event.jaxis.value / (double)32768.0;
GB_set_accelerometer_values(gb, -accel_values[0], -accel_values[1]);
}
else if (configuration.use_faux_analog_inputs) {
axis_values[1] = event.jaxis.value / (double)32768.0;
}
else if (event.jaxis.value > JOYSTICK_HIGH) {
axis_active[1] = true;
GB_set_use_faux_analog_inputs(gb, 0, false);
GB_set_key_state(gb, GB_KEY_DOWN, true);
GB_set_key_state(gb, GB_KEY_UP, false);
}
else if (event.jaxis.value < -JOYSTICK_HIGH) {
axis_active[1] = true;
GB_set_use_faux_analog_inputs(gb, 0, false);
GB_set_key_state(gb, GB_KEY_DOWN, false);
GB_set_key_state(gb, GB_KEY_UP, true);
}
else if (axis_active[1] && event.jaxis.value < JOYSTICK_LOW && event.jaxis.value > -JOYSTICK_LOW) {
axis_active[1] = false;
GB_set_key_state(gb, GB_KEY_DOWN, false);
GB_set_key_state(gb, GB_KEY_UP, false);
}
}
if (configuration.use_faux_analog_inputs && !GB_has_accelerometer(gb)) {
GB_set_use_faux_analog_inputs(gb, 0, true);
GB_set_faux_analog_inputs(gb, 0, axis_values[0], axis_values[1]);
}
break;
}
case SDL_JOYHATMOTION: {
uint8_t value = event.jhat.value;
int8_t updown =
value == SDL_HAT_LEFTUP || value == SDL_HAT_UP || value == SDL_HAT_RIGHTUP ? -1 : (value == SDL_HAT_LEFTDOWN || value == SDL_HAT_DOWN || value == SDL_HAT_RIGHTDOWN ? 1 : 0);
int8_t leftright =
value == SDL_HAT_LEFTUP || value == SDL_HAT_LEFT || value == SDL_HAT_LEFTDOWN ? -1 : (value == SDL_HAT_RIGHTUP || value == SDL_HAT_RIGHT || value == SDL_HAT_RIGHTDOWN ? 1 : 0);
GB_set_use_faux_analog_inputs(gb, 0, false);
GB_set_key_state(gb, GB_KEY_LEFT, leftright == -1);
GB_set_key_state(gb, GB_KEY_RIGHT, leftright == 1);
GB_set_key_state(gb, GB_KEY_UP, updown == -1);
GB_set_key_state(gb, GB_KEY_DOWN, updown == 1);
break;
};
case SDL_KEYDOWN:
switch (event_hotkey_code(&event)) {
case SDL_SCANCODE_ESCAPE: {
open_menu();
break;
}
case SDL_SCANCODE_C:
if (event.type == SDL_KEYDOWN && (event.key.keysym.mod & KMOD_CTRL)) {
pending_command = GB_SDL_DEBUGGER_INTERRUPT_COMMAND;
}
break;
case SDL_SCANCODE_R:
if (event.key.keysym.mod & MODIFIER) {
pending_command = GB_SDL_RESET_COMMAND;
paused = false;
}
break;
case SDL_SCANCODE_O: {
if (event.key.keysym.mod & MODIFIER) {
char *filename = do_open_rom_dialog();
if (filename) {
set_filename(filename, free);
pending_command = GB_SDL_NEW_FILE_COMMAND;
}
}
break;
}
case SDL_SCANCODE_P:
if (event.key.keysym.mod & MODIFIER) {
paused = !paused;
}
break;
case SDL_SCANCODE_M:
if (event.key.keysym.mod & MODIFIER) {
#ifdef __APPLE__
// Can't override CMD+M (Minimize) in SDL
if (!(event.key.keysym.mod & KMOD_SHIFT)) {
break;
}
#endif
GB_audio_set_paused(GB_audio_is_playing());
}
break;
case SDL_SCANCODE_F:
if (event.key.keysym.mod & MODIFIER) {
if (!(SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN_DESKTOP)) {
SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN_DESKTOP);
}
else {
SDL_SetWindowFullscreen(window, 0);
}
update_swap_interval();
update_viewport();
screen_manually_resized = true;
}
break;
default:
/* Save states */
if (event.key.keysym.scancode >= SDL_SCANCODE_1 && event.key.keysym.scancode <= SDL_SCANCODE_0) {
if (event.key.keysym.mod & MODIFIER) {
command_parameter = (event.key.keysym.scancode - SDL_SCANCODE_1 + 1) % 10;
if (event.key.keysym.mod & KMOD_SHIFT) {
pending_command = GB_SDL_LOAD_STATE_COMMAND;
}
else {
pending_command = GB_SDL_SAVE_STATE_COMMAND;
}
}
else if ((event.key.keysym.mod & KMOD_ALT) && event.key.keysym.scancode <= SDL_SCANCODE_4) {
GB_channel_t channel = event.key.keysym.scancode - SDL_SCANCODE_1;
bool state = !GB_is_channel_muted(gb, channel);
GB_set_channel_muted(gb, channel, state);
static char message[18];
sprintf(message, "Channel %d %smuted", channel + 1, state? "" : "un");
show_osd_text(message);
}
}
break;
}
case SDL_KEYUP: // Fallthrough
if (event.key.keysym.scancode == configuration.keys[GB_CONF_KEYS_TURBO]) {
turbo_down = event.type == SDL_KEYDOWN;
GB_audio_clear_queue();
GB_set_turbo_mode(gb, turbo_down, turbo_down && rewind_down);
SDL_GL_SetSwapInterval(turbo_down? 0 : configuration.vsync_mode);
}
else if (event.key.keysym.scancode == configuration.keys_2[GB_CONF_KEYS2_REWIND]) {
rewind_down = event.type == SDL_KEYDOWN;
if (event.type == SDL_KEYUP) {
rewind_paused = false;
}
GB_set_turbo_mode(gb, turbo_down, turbo_down && rewind_down);
SDL_GL_SetSwapInterval(turbo_down? 0 : configuration.vsync_mode);
}
else if (event.key.keysym.scancode == configuration.keys_2[GB_CONF_KEYS2_UNDERCLOCK]) {
underclock_down = event.type == SDL_KEYDOWN;
}
else if (event.key.keysym.scancode == configuration.keys_2[GB_CONF_KEYS2_RAPID_A]) {
rapid_a = event.type == SDL_KEYDOWN;
rapid_a_count = 0;
GB_set_key_state(gb, GB_KEY_A, event.type == SDL_KEYDOWN);
}
else if (event.key.keysym.scancode == configuration.keys_2[GB_CONF_KEYS2_RAPID_B]) {
rapid_b = event.type == SDL_KEYDOWN;
rapid_b_count = 0;
GB_set_key_state(gb, GB_KEY_B, event.type == SDL_KEYDOWN);
}
else {
for (unsigned i = 0; i < GB_KEY_MAX; i++) {
if (event.key.keysym.scancode == configuration.keys[i]) {
if (i <= GB_KEY_DOWN) {
GB_set_use_faux_analog_inputs(gb, 0, false);
}
GB_set_key_state(gb, i, event.type == SDL_KEYDOWN);
}
}
}
break;
default:
break;
}
}
}
static uint32_t rgb_encode(GB_gameboy_t *gb, uint8_t r, uint8_t g, uint8_t b)
{
return SDL_MapRGB(pixel_format, r, g, b);
}
static void vblank(GB_gameboy_t *gb, GB_vblank_type_t type)
{
if (underclock_down && clock_mutliplier > 0.5) {
clock_mutliplier -= 1.0/16;
GB_set_clock_multiplier(gb, clock_mutliplier);
}
else if (!underclock_down && clock_mutliplier < 1.0) {
clock_mutliplier += 1.0/16;
GB_set_clock_multiplier(gb, clock_mutliplier);
}
if (rapid_a) {
rapid_a_count++;
GB_set_key_state(gb, GB_KEY_A, !(rapid_a_count & 2));
}
if (rapid_b) {
rapid_b_count++;
GB_set_key_state(gb, GB_KEY_B, !(rapid_b_count & 2));
}
if (turbo_down) {
show_osd_text("Fast forward...");
}
else if (underclock_down) {
show_osd_text("Slow motion...");
}
else if (rewind_down) {
show_osd_text("Rewinding...");
}
if (osd_countdown && configuration.osd) {
unsigned width = GB_get_screen_width(gb);
unsigned height = GB_get_screen_height(gb);
draw_text(active_pixel_buffer,
width, height, 8, height - 8 - osd_text_lines * 12, osd_text,
rgb_encode(gb, 255, 255, 255), rgb_encode(gb, 0, 0, 0),
true);
osd_countdown--;
}
if (type != GB_VBLANK_TYPE_REPEAT) {
if (configuration.blending_mode) {
render_texture(active_pixel_buffer, previous_pixel_buffer);
uint32_t *temp = active_pixel_buffer;
active_pixel_buffer = previous_pixel_buffer;
previous_pixel_buffer = temp;
GB_set_pixels_output(gb, active_pixel_buffer);
}
else {
render_texture(active_pixel_buffer, NULL);
}
}
do_rewind = rewind_down;
handle_events(gb);
}
static void rumble(GB_gameboy_t *gb, double amp)
{
SDL_HapticRumblePlay(haptic, amp, 250);
}
static void debugger_interrupt(int ignore)
{
#ifndef _WIN32
if (!GB_is_inited(&gb)) {
exit(0);
}
if (GB_debugger_is_stopped(&gb)) {
pending_command = GB_SDL_QUIT_COMMAND;
console_line_ready(); // Force the debugger wait-loop to process the command
return;
}
#endif
pending_command = GB_SDL_DEBUGGER_INTERRUPT_COMMAND;
}
#ifndef _WIN32
static void debugger_reset(int ignore)
{
pending_command = GB_SDL_RESET_COMMAND;
}
#endif
static void gb_audio_callback(GB_gameboy_t *gb, GB_sample_t *sample)
{
if (turbo_down) {
static unsigned skip = 0;
skip++;
if (skip == GB_audio_get_frequency() / 8) {
skip = 0;
}
if (configuration.turbo_cap) {
if (skip > GB_audio_get_frequency() / 8 * 4 / configuration.turbo_cap) {
return;
}
}
else {
if (skip > GB_audio_get_frequency() / 16) {
return;
}
}
}
if (GB_audio_get_queue_length() > GB_audio_get_frequency() / 8) { // Maximum lag of 0.125s
return;
}
if (configuration.volume != 100) {
sample->left = sample->left * configuration.volume / 100;
sample->right = sample->right * configuration.volume / 100;
}
GB_audio_queue_sample(sample);
}
#ifdef _WIN32
static BOOL windows_console_handler(DWORD signal)
{
/*
Hack: prevents process termination on console close
https://twitter.com/yo_yo_yo_jbo/status/1904592584326218069
Thanks JBO!
*/
if (signal == CTRL_C_EVENT) {
/* Only happens in no-csi mode */
pending_command = GB_SDL_DEBUGGER_INTERRUPT_COMMAND;
TerminateThread(GetCurrentThread(), 0);
}
pending_command = GB_SDL_HIDE_DEBUGGER_COMMAND;
console_line_ready();
TerminateThread(GetCurrentThread(), 0);
return false;
}
static void initialize_windows_console(void)
{
if (AllocConsole()) {
SetConsoleTitle("SameBoy Debugger Console");
freopen("CONIN$", "r", stdin);
setvbuf(stdin, NULL, _IONBF, 0);
freopen("CONOUT$", "w", stdout);
setvbuf(stdout, NULL, _IONBF, 0);
freopen("CONOUT$", "w", stderr);
setvbuf(stderr, NULL, _IONBF, 0);
console_supported = CON_start(completer);
if (console_supported) {
configure_console();
}
/* I would set a callback via SetConsoleCtrlHandler, but the function (CtrlRoutine) that
eventually calls our callback takes a lock and doesn't release it (as it expects the
process to exit afterwards). The solution is to take a more violent approach and hook
it instead. */
#if defined(__x86_64__) || defined(__i386__)
uint8_t *patch_address = (void *)(GetProcAddress(GetModuleHandleA("KernelBase.dll"), "CtrlRoutine") ?:
GetProcAddress(GetModuleHandleA("Kernel32.dll"), "CtrlRoutine"));
#else
uint8_t *patch_address = NULL;
#endif
if (!patch_address) {
EnableMenuItem(GetSystemMenu(GetConsoleWindow(), false), SC_CLOSE, MF_BYCOMMAND | MF_DISABLED | MF_GRAYED);
}
else {
DWORD old_protection;
VirtualProtect(patch_address, 0x20, PAGE_READWRITE, &old_protection);
if (sizeof(&windows_console_handler) == 8) {
*(patch_address++) = 0x48; // movabs
}
*(patch_address++) = 0xb8; // mov
(*(uintptr_t *)patch_address) = (uintptr_t)&windows_console_handler;
patch_address += sizeof(&windows_console_handler);
// jmp rax/eax
*(patch_address++) = 0xff;
*(patch_address++) = 0xe0;
VirtualProtect(patch_address, 0x20, old_protection, &old_protection);
}
}
}
#endif
static bool doing_hot_swap = false;
static bool handle_pending_command(void)
{
switch (pending_command) {
case GB_SDL_LOAD_STATE_COMMAND:
case GB_SDL_SAVE_STATE_COMMAND: {
char save_path[strlen(filename) + 5];
char save_extension[] = ".s0";
save_extension[2] += command_parameter;
replace_extension(filename, strlen(filename), save_path, save_extension);
void *previous = start_capturing_logs();
bool success;
if (pending_command == GB_SDL_LOAD_STATE_COMMAND) {
int result = GB_load_state(&gb, save_path);
if (result == ENOENT) {
char save_extension[] = ".sn0";
save_extension[3] += command_parameter;
replace_extension(filename, strlen(filename), save_path, save_extension);
start_capturing_logs();
result = GB_load_state(&gb, save_path);
}
success = result == 0;
}
else {
success = GB_save_state(&gb, save_path) == 0;
}
end_capturing_logs(true,
false,
success? SDL_MESSAGEBOX_INFORMATION : SDL_MESSAGEBOX_ERROR,
success? "Notice" : "Error",
previous);
if (success) {
show_osd_text(pending_command == GB_SDL_LOAD_STATE_COMMAND? "State loaded" : "State saved");
}
return false;
}
case GB_SDL_LOAD_STATE_FROM_FILE_COMMAND: {
void *previous = start_capturing_logs();
bool success = GB_load_state(&gb, dropped_state_file) == 0;
end_capturing_logs(true,
false,
success? SDL_MESSAGEBOX_INFORMATION : SDL_MESSAGEBOX_ERROR,
success? "Notice" : "Error",
previous);
SDL_free(dropped_state_file);
if (success) {
show_osd_text("State loaded");
}
return false;
}
case GB_SDL_NO_COMMAND:
return false;
case GB_SDL_CART_SWAP_COMMAND:
doing_hot_swap = true;
case GB_SDL_RESET_COMMAND:
case GB_SDL_NEW_FILE_COMMAND:
GB_save_battery(&gb, battery_save_path_ptr);
return true;
case GB_SDL_QUIT_COMMAND:
GB_save_battery(&gb, battery_save_path_ptr);
exit(0);
case GB_SDL_DEBUGGER_INTERRUPT_COMMAND:
if (!GB_is_inited(&gb)) exit(0);
#ifdef _WIN32
initialize_windows_console();
#endif
/* ^C twice to exit */
if (GB_debugger_is_stopped(&gb)) {
#ifndef _WIN32
GB_save_battery(&gb, battery_save_path_ptr);
exit(0);
#else
break;
#endif
}
if (console_supported) {
CON_print("^C\n");
}
GB_debugger_break(&gb);
break;
#if _WIN32
case GB_SDL_HIDE_DEBUGGER_COMMAND:
HWND console_window = GetConsoleWindow();
ShowWindow(console_window, SW_HIDE);
FreeConsole();
SDL_RaiseWindow(window);
break;
#endif
}
return false;
}
static void load_boot_rom(GB_gameboy_t *gb, GB_boot_rom_t type)
{
static const char *const names[] = {
[GB_BOOT_ROM_DMG_0] = "dmg0_boot.bin",
[GB_BOOT_ROM_DMG] = "dmg_boot.bin",
[GB_BOOT_ROM_MGB] = "mgb_boot.bin",
[GB_BOOT_ROM_SGB] = "sgb_boot.bin",
[GB_BOOT_ROM_SGB2] = "sgb2_boot.bin",
[GB_BOOT_ROM_CGB_0] = "cgb0_boot.bin",
[GB_BOOT_ROM_CGB] = "cgb_boot.bin",
[GB_BOOT_ROM_CGB_E] = "cgbE_boot.bin",
[GB_BOOT_ROM_AGB_0] = "agb0_boot.bin",
[GB_BOOT_ROM_AGB] = "agb_boot.bin",
};
bool use_built_in = true;
if (configuration.bootrom_path[0]) {
static char path[PATH_MAX + 1];
snprintf(path, sizeof(path), "%s/%s", configuration.bootrom_path, names[type]);
use_built_in = GB_load_boot_rom(gb, path);
}
if (use_built_in) {
void *previous = start_capturing_logs();
if (GB_load_boot_rom(gb, resource_path(names[type]))) {
if (type == GB_BOOT_ROM_CGB_E) {
end_capturing_logs(false, false, 0, NULL, previous);
load_boot_rom(gb, GB_BOOT_ROM_CGB);
return;
}
if (type == GB_BOOT_ROM_AGB_0) {
end_capturing_logs(false, false, 0, NULL, previous);
load_boot_rom(gb, GB_BOOT_ROM_AGB);
return;
}
}
end_capturing_logs(true, false, SDL_MESSAGEBOX_ERROR, "Error", previous);
}
}
static bool is_path_writeable(const char *path)
{
if (!access(path, W_OK)) return true;
int fd = creat(path, 0644);
if (fd == -1) return false;
close(fd);
unlink(path);
return true;
}
static void debugger_reload_callback(GB_gameboy_t *gb)
{
size_t path_length = strlen(filename);
char extension[4] = {0,};
if (path_length > 4) {
if (filename[path_length - 4] == '.') {
extension[0] = tolower((unsigned char)filename[path_length - 3]);
extension[1] = tolower((unsigned char)filename[path_length - 2]);
extension[2] = tolower((unsigned char)filename[path_length - 1]);
}
}
if (strcmp(extension, "isx") == 0) {
GB_load_isx(gb, filename);
}
else {
GB_load_rom(gb, filename);
}
GB_load_battery(gb, battery_save_path_ptr);
GB_debugger_clear_symbols(gb);
GB_debugger_load_symbol_file(gb, resource_path("registers.sym"));
char symbols_path[path_length + 5];
replace_extension(filename, path_length, symbols_path, ".sym");
GB_debugger_load_symbol_file(gb, symbols_path);
GB_reset(gb);
}
static GB_model_t model_to_use(void)
{
typeof(configuration.model) gui_model = configuration.model;
if (gui_model == MODEL_AUTO) {
uint8_t *rom = GB_get_direct_access(&gb, GB_DIRECT_ACCESS_ROM, NULL, NULL);
if (!rom) {
gui_model = MODEL_CGB;
}
else if (rom[0x143] & 0x80) { // Has CGB features
gui_model = MODEL_CGB;
}
else if (rom[0x146] == 3) { // Has SGB features
gui_model = MODEL_SGB;
}
else if (rom[0x14B] == 1) { // Nintendo-licensed (most likely has boot ROM palettes)
gui_model = MODEL_CGB;
}
else if (rom[0x14B] == 0x33 &&
rom[0x144] == '0' &&
rom[0x145] == '1') { // Ditto
gui_model = MODEL_CGB;
}
else {
gui_model = MODEL_DMG;
}
}
return (GB_model_t [])
{
[MODEL_DMG] = GB_MODEL_DMG_B,
[MODEL_CGB] = GB_MODEL_CGB_0 + configuration.cgb_revision,
[MODEL_AGB] = configuration.agb_revision,
[MODEL_MGB] = GB_MODEL_MGB,
[MODEL_SGB] = (GB_model_t [])
{
[SGB_NTSC] = GB_MODEL_SGB_NTSC,
[SGB_PAL] = GB_MODEL_SGB_PAL,
[SGB_2] = GB_MODEL_SGB2,
}[configuration.sgb_revision],
}[gui_model];
}
static void run(void)
{
SDL_ShowCursor(SDL_DISABLE);
GB_model_t model;
pending_command = GB_SDL_NO_COMMAND;
restart:;
model = model_to_use();
bool should_resize = !screen_manually_resized;
signed current_window_width, current_window_height;
SDL_GetWindowSize(window, &current_window_width, &current_window_height);
if (GB_is_inited(&gb)) {
should_resize =
current_window_width == GB_get_screen_width(&gb) * configuration.default_scale &&
current_window_height == GB_get_screen_height(&gb) * configuration.default_scale;
if (doing_hot_swap) {
doing_hot_swap = false;
}
else {
GB_switch_model_and_reset(&gb, model);
}
}
else {
GB_init(&gb, model);
GB_set_boot_rom_load_callback(&gb, load_boot_rom);
GB_set_vblank_callback(&gb, (GB_vblank_callback_t) vblank);
GB_set_pixels_output(&gb, active_pixel_buffer);
GB_set_rgb_encode_callback(&gb, rgb_encode);
GB_set_rumble_callback(&gb, rumble);
GB_set_rumble_mode(&gb, configuration.rumble_mode);
GB_set_sample_rate(&gb, GB_audio_get_frequency());
GB_set_color_correction_mode(&gb, configuration.color_correction_mode);
GB_set_light_temperature(&gb, (configuration.color_temperature - 10.0) / 10.0);
GB_set_interference_volume(&gb, configuration.interference_volume / 100.0);
update_palette();
if ((unsigned)configuration.border_mode <= GB_BORDER_ALWAYS) {
GB_set_border_mode(&gb, configuration.border_mode);
}
GB_set_highpass_filter_mode(&gb, configuration.highpass_mode);
GB_set_rewind_length(&gb, configuration.rewind_length);
GB_set_rtc_mode(&gb, configuration.rtc_mode);
GB_set_turbo_cap(&gb, configuration.turbo_cap / 4.0);
GB_set_update_input_hint_callback(&gb, handle_events);
GB_apu_set_sample_callback(&gb, gb_audio_callback);
if (console_supported) {
configure_console();
}
GB_debugger_set_reload_callback(&gb, debugger_reload_callback);
}
if (stop_on_start) {
stop_on_start = false;
GB_debugger_break(&gb);
}
bool error = false;
GB_debugger_clear_symbols(&gb);
void *previous = start_capturing_logs();
size_t path_length = strlen(filename);
char extension[4] = {0,};
if (path_length > 4) {
if (filename[path_length - 4] == '.') {
extension[0] = tolower((unsigned char)filename[path_length - 3]);
extension[1] = tolower((unsigned char)filename[path_length - 2]);
extension[2] = tolower((unsigned char)filename[path_length - 1]);
}
}
if (strcmp(extension, "isx") == 0) {
error = GB_load_isx(&gb, filename);
/* Configure battery */
char battery_save_path[path_length + 5]; /* At the worst case, size is strlen(path) + 4 bytes for .sav + NULL */
replace_extension(filename, path_length, battery_save_path, ".ram");
battery_save_path_ptr = battery_save_path;
GB_load_battery(&gb, battery_save_path);
}
else {
GB_load_rom(&gb, filename);
}
GB_model_t updated_model = model_to_use(); // Could change after loading ROM with auto setting
if (model != updated_model) {
model = updated_model;
GB_switch_model_and_reset(&gb, model);
}
if (should_resize) {
signed width = GB_get_screen_width(&gb) * configuration.default_scale;
signed height = GB_get_screen_height(&gb) * configuration.default_scale;
signed x, y;
SDL_GetWindowPosition(window, &x, &y);
SDL_SetWindowSize(window, width, height);
SDL_SetWindowPosition(window, x - (width - current_window_width) / 2, y - (height - current_window_height) / 2);
}
/* Configure battery */
char battery_save_path[path_length + 5]; /* At the worst case, size is strlen(path) + 4 bytes for .sav + NULL */
replace_extension(filename, path_length, battery_save_path, ".sav");
battery_save_path_ptr = battery_save_path;
GB_load_battery(&gb, battery_save_path);
if (GB_save_battery_size(&gb)) {
if (!is_path_writeable(battery_save_path)) {
GB_log(&gb, "The save path for this ROM is not writeable, progress will not be saved.\n");
}
}
char cheat_path[path_length + 5];
replace_extension(filename, path_length, cheat_path, ".cht");
// Remove all cheats before loading, so they're cleared even if loading fails.
GB_remove_all_cheats(&gb);
GB_load_cheats(&gb, cheat_path, false);
end_capturing_logs(true, error, SDL_MESSAGEBOX_WARNING, "Warning", previous);
static char start_text[64];
static char title[17];
GB_get_rom_title(&gb, title);
sprintf(start_text, "SameBoy v" GB_VERSION "\n%s\n%08X", title, GB_get_rom_crc32(&gb));
show_osd_text(start_text);
/* Configure symbols */
GB_debugger_load_symbol_file(&gb, resource_path("registers.sym"));
char symbols_path[path_length + 5];
replace_extension(filename, path_length, symbols_path, ".sym");
GB_debugger_load_symbol_file(&gb, symbols_path);
screen_size_changed(false);
/* Run emulation */
while (true) {
if (paused || rewind_paused) {
SDL_WaitEvent(NULL);
handle_events(&gb);
}
else {
if (do_rewind) {
GB_rewind_pop(&gb);
if (turbo_down) {
GB_rewind_pop(&gb);
}
if (!GB_rewind_pop(&gb)) {
rewind_paused = true;
}
do_rewind = false;
}
GB_run(&gb);
}
/* These commands can't run in the handle_event function, because they're not safe in a vblank context. */
if (handle_pending_command()) {
pending_command = GB_SDL_NO_COMMAND;
goto restart;
}
pending_command = GB_SDL_NO_COMMAND;
}
}
static char prefs_path[PATH_MAX + 1] = {0, };
static void save_configuration(void)
{
FILE *prefs_file = fopen(prefs_path, "wb");
if (prefs_file) {
fwrite(&configuration, 1, sizeof(configuration), prefs_file);
fclose(prefs_file);
}
}
static void stop_recording(void)
{
GB_stop_audio_recording(&gb);
}
static bool get_arg_flag(const char *flag, int *argc, char **argv)
{
for (unsigned i = 1; i < *argc; i++) {
if (strcmp(argv[i], flag) == 0) {
(*argc)--;
argv[i] = argv[*argc];
return true;
}
}
return false;
}
static const char *get_arg_option(const char *option, int *argc, char **argv)
{
for (unsigned i = 1; i < *argc - 1; i++) {
if (strcmp(argv[i], option) == 0) {
const char *ret = argv[i + 1];
memmove(argv + i, argv + i + 2, (*argc - i - 2) * sizeof(argv[0]));
(*argc) -= 2;
return ret;
}
}
return NULL;
}
#ifdef __APPLE__
#include <CoreFoundation/CoreFoundation.h>
static void enable_smooth_scrolling(void)
{
CFPreferencesSetAppValue(CFSTR("AppleMomentumScrollSupported"), kCFBooleanTrue, kCFPreferencesCurrentApplication);
}
#endif
static void handle_model_option(const char *model_string)
{
static const struct {
const char *name;
GB_model_t model;
const char *description;
} name_to_model[] = {
{"auto", -1, "Pick automatically"},
{"dmg-b", GB_MODEL_DMG_B, "Game Boy, DMG-CPU B"},
{"dmg", GB_MODEL_DMG_B, "Alias of dmg-b"},
{"sgb-ntsc", GB_MODEL_SGB_NTSC, "Super Game Boy (NTSC)"},
{"sgb-pal", GB_MODEL_SGB_PAL, "Super Game Boy (PAL)"},
{"sgb2", GB_MODEL_SGB2, "Super Game Boy 2"},
{"sgb", GB_MODEL_SGB, "Alias of sgb-ntsc"},
{"mgb", GB_MODEL_MGB, "Game Boy Pocket/Light"},
{"cgb-0", GB_MODEL_CGB_0, "Game Boy Color, CPU CGB"},
{"cgb-a", GB_MODEL_CGB_A, "Game Boy Color, CPU CGB A"},
{"cgb-b", GB_MODEL_CGB_B, "Game Boy Color, CPU CGB B"},
{"cgb-c", GB_MODEL_CGB_C, "Game Boy Color, CPU CGB C"},
{"cgb-d", GB_MODEL_CGB_D, "Game Boy Color, CPU CGB D"},
{"cgb-e", GB_MODEL_CGB_E, "Game Boy Color, CPU CGB E"},
{"cgb", GB_MODEL_CGB_E, "Alias of cgb-e"},
{"agb-a", GB_MODEL_AGB_A, "Game Boy Advance, CPU AGB A"},
{"agb", GB_MODEL_AGB_A, "Alias of agb-a"},
{"gbp-a", GB_MODEL_GBP_A, "Game Boy Player, CPU AGB A"},
{"gbp", GB_MODEL_GBP_A, "Alias of gbp-a"},
};
GB_model_t model = -1;
for (unsigned i = 0; i < sizeof(name_to_model) / sizeof(name_to_model[0]); i++) {
if (strcmp(model_string, name_to_model[i].name) == 00) {
model = name_to_model[i].model;
break;
}
}
if (model == -1) {
fprintf(stderr, "'%s' is not a valid model. Valid options are:\n", model_string);
for (unsigned i = 0; i < sizeof(name_to_model) / sizeof(name_to_model[0]); i++) {
fprintf(stderr, "%s - %s\n", name_to_model[i].name, name_to_model[i].description);
}
exit(1);
}
switch (model) {
case GB_MODEL_DMG_B:
configuration.model = MODEL_DMG;
break;
case GB_MODEL_SGB_NTSC:
configuration.model = MODEL_SGB;
configuration.sgb_revision = SGB_NTSC;
break;
case GB_MODEL_SGB_PAL:
configuration.model = MODEL_SGB;
configuration.sgb_revision = SGB_PAL;
break;
case GB_MODEL_SGB2:
configuration.model = MODEL_SGB;
configuration.sgb_revision = SGB_2;
break;
case GB_MODEL_MGB:
configuration.model = MODEL_DMG;
break;
case GB_MODEL_CGB_0:
case GB_MODEL_CGB_A:
case GB_MODEL_CGB_B:
case GB_MODEL_CGB_C:
case GB_MODEL_CGB_D:
case GB_MODEL_CGB_E:
configuration.model = MODEL_CGB;
configuration.cgb_revision = model - GB_MODEL_CGB_0;
break;
case GB_MODEL_AGB_A:
case GB_MODEL_GBP_A:
configuration.model = MODEL_AGB;
configuration.agb_revision = model;
break;
default:
configuration.model = MODEL_AUTO;
break;
}
}
#ifdef _WIN32
/* raise is buggy and for some reason not always go through our signal handler, so
let's just place the implementation with a direct call to debugger_interrupt. */
int raise(int signal)
{
debugger_interrupt(signal);
return 0;
}
#endif
int main(int argc, char **argv)
{
#ifdef _WIN32
SetProcessDPIAware();
#endif
#ifdef __APPLE__
enable_smooth_scrolling();
#endif
const char *model_string = get_arg_option("--model", &argc, argv);
bool fullscreen = get_arg_flag("--fullscreen", &argc, argv) || get_arg_flag("-f", &argc, argv);
bool nogl = get_arg_flag("--nogl", &argc, argv);
stop_on_start = get_arg_flag("--stop-debugger", &argc, argv) || get_arg_flag("-s", &argc, argv);
if (argc > 2 || (argc == 2 && argv[1][0] == '-')) {
fprintf(stderr, "SameBoy v" GB_VERSION "\n");
fprintf(stderr, "Usage: %s [--fullscreen|-f] [--nogl] [--stop-debugger|-s] [--model <model>] <rom>\n", argv[0]);
exit(1);
}
if (argc == 2) {
filename = argv[1];
}
signal(SIGINT, debugger_interrupt);
#ifndef _WIN32
signal(SIGUSR1, debugger_reset);
#endif
if (SDL_Init(SDL_INIT_EVERYTHING & ~SDL_INIT_AUDIO) < 0) {
fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
}
// This is, essentially, best-effort.
// This function will not be called if the process is terminated in any way, anyhow.
atexit(SDL_Quit);
if ((console_supported = CON_start(completer))) {
CON_set_repeat_empty(true);
CON_printf("SameBoy v" GB_VERSION "\n");
}
else {
fprintf(stderr, "SameBoy v" GB_VERSION "\n");
}
strcpy(prefs_path, resource_path("prefs.bin"));
if (access(prefs_path, R_OK | W_OK) != 0) {
char *prefs_dir = SDL_GetPrefPath("", "SameBoy");
snprintf(prefs_path, sizeof(prefs_path) - 1, "%sprefs.bin", prefs_dir);
SDL_free(prefs_dir);
}
FILE *prefs_file = fopen(prefs_path, "rb");
if (prefs_file) {
fread(&configuration, 1, sizeof(configuration), prefs_file);
fclose(prefs_file);
/* Sanitize for stability */
configuration.color_correction_mode %= GB_COLOR_CORRECTION_MODERN_ACCURATE + 1;
configuration.scaling_mode %= GB_SDL_SCALING_MAX;
configuration.default_scale %= GB_SDL_DEFAULT_SCALE_MAX + 1;
configuration.blending_mode %= GB_FRAME_BLENDING_MODE_ACCURATE + 1;
configuration.highpass_mode %= GB_HIGHPASS_MAX;
configuration.sgb_revision %= SGB_MAX;
configuration.dmg_palette %= 5;
if (configuration.dmg_palette) {
configuration.gui_palette_enabled = true;
}
configuration.border_mode %= GB_BORDER_ALWAYS + 1;
configuration.rumble_mode %= GB_RUMBLE_ALL_GAMES + 1;
configuration.color_temperature %= 21;
configuration.bootrom_path[sizeof(configuration.bootrom_path) - 1] = 0;
configuration.cgb_revision %= GB_MODEL_CGB_E - GB_MODEL_CGB_0 + 1;
configuration.audio_driver[15] = 0;
configuration.dmg_palette_name[24] = 0;
// Fix broken defaults, should keys 12-31 should be unmapped by default
if (configuration.joypad_configuration[31] == 0) {
memset(configuration.joypad_configuration + 12 , -1, 32 - 12);
}
if ((configuration.agb_revision & ~GB_MODEL_GBP_BIT) != GB_MODEL_AGB_A) {
configuration.agb_revision = GB_MODEL_AGB_A;
}
}
if (configuration.model >= MODEL_MAX) {
configuration.model = MODEL_CGB;
}
if (configuration.default_scale == 0) {
configuration.default_scale = 2;
}
if (model_string) {
handle_model_option(model_string);
}
atexit(save_configuration);
atexit(stop_recording);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS,
configuration.allow_background_controllers? "1" : "0");
window = SDL_CreateWindow("SameBoy v" GB_VERSION, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
(configuration.border_mode == GB_BORDER_ALWAYS? 256 : 160) * configuration.default_scale,
(configuration.border_mode == GB_BORDER_ALWAYS? 224 : 144) * configuration.default_scale,
SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
if (window == NULL) {
fputs(SDL_GetError(), stderr);
exit(1);
}
SDL_SetWindowMinimumSize(window, 160, 144);
if (fullscreen) {
SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN_DESKTOP);
}
#ifdef _WIN32
configure_window_corners();
#endif
gl_context = nogl? NULL : SDL_GL_CreateContext(window);
GLint major = 0, minor = 0;
if (gl_context) {
glGetIntegerv(GL_MAJOR_VERSION, &major);
glGetIntegerv(GL_MINOR_VERSION, &minor);
update_swap_interval();
}
if (gl_context && major * 0x100 + minor < 0x302) {
SDL_GL_DeleteContext(gl_context);
gl_context = NULL;
}
if (gl_context == NULL) {
renderer = SDL_CreateRenderer(window, -1, 0);
texture = SDL_CreateTexture(renderer, SDL_GetWindowPixelFormat(window), SDL_TEXTUREACCESS_STREAMING, 160, 144);
pixel_format = SDL_AllocFormat(SDL_GetWindowPixelFormat(window));
}
else {
pixel_format = SDL_AllocFormat(SDL_PIXELFORMAT_ABGR8888);
}
GB_audio_init();
SDL_EventState(SDL_DROPFILE, SDL_ENABLE);
if (!init_shader_with_name(&shader, configuration.filter)) {
init_shader_with_name(&shader, "NearestNeighbor");
}
update_viewport();
#ifdef _WIN32
if (!configuration.windows_associations_prompted) {
configuration.windows_associations_prompted = true;
save_configuration();
SDL_MessageBoxButtonData buttons[2] = {
{
.flags = SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
.buttonid = 0,
.text = "No",
},
{
.flags = SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT,
.buttonid = 1,
.text = "Yes",
},
};
SDL_MessageBoxData box = {
.title = "Associate SameBoy with Game Boy ROMs",
.message = "Would you like to associate SameBoy with Game Boy ROMs?\nThis can be also done later in the Options menu.",
.numbuttons = 2,
.buttons = buttons,
};
int button;
SDL_ShowMessageBox(&box, &button);
if (button) {
GB_do_windows_association();
}
}
#endif
SDL_GL_SetSwapInterval(configuration.vsync_mode);
if (filename == NULL) {
stop_on_start = false;
run_gui(false);
}
else {
connect_joypad();
}
GB_audio_set_paused(false);
run(); // Never returns
return 0;
}
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