#include #include #include #include #include #include #include #include "utils.h" #include "gui.h" #include "font.h" static const SDL_Color gui_palette[4] = {{8, 24, 16,}, {57, 97, 57,}, {132, 165, 99}, {198, 222, 140}}; static uint32_t gui_palette_native[4]; SDL_Window *window = NULL; SDL_Renderer *renderer = NULL; SDL_Texture *texture = NULL; SDL_PixelFormat *pixel_format = NULL; enum pending_command pending_command; unsigned command_parameter; char *dropped_state_file = NULL; #ifdef __APPLE__ #define MODIFIER_NAME " " CMD_STRING #else #define MODIFIER_NAME CTRL_STRING #endif shader_t shader; static SDL_Rect rect; static unsigned factor; void render_texture(void *pixels, void *previous) { if (renderer) { if (pixels) { SDL_UpdateTexture(texture, NULL, pixels, GB_get_screen_width(&gb) * sizeof (uint32_t)); } SDL_RenderClear(renderer); SDL_RenderCopy(renderer, texture, NULL, NULL); SDL_RenderPresent(renderer); } else { static void *_pixels = NULL; if (pixels) { _pixels = pixels; } glClearColor(0, 0, 0, 1); glClear(GL_COLOR_BUFFER_BIT); GB_frame_blending_mode_t mode = configuration.blending_mode; if (!previous) { mode = GB_FRAME_BLENDING_MODE_DISABLED; } else if (mode == GB_FRAME_BLENDING_MODE_ACCURATE) { if (GB_is_sgb(&gb)) { mode = GB_FRAME_BLENDING_MODE_SIMPLE; } else { mode = GB_is_odd_frame(&gb)? GB_FRAME_BLENDING_MODE_ACCURATE_ODD : GB_FRAME_BLENDING_MODE_ACCURATE_EVEN; } } render_bitmap_with_shader(&shader, _pixels, previous, GB_get_screen_width(&gb), GB_get_screen_height(&gb), rect.x, rect.y, rect.w, rect.h, mode); SDL_GL_SwapWindow(window); } } configuration_t configuration = { .keys = { SDL_SCANCODE_RIGHT, SDL_SCANCODE_LEFT, SDL_SCANCODE_UP, SDL_SCANCODE_DOWN, SDL_SCANCODE_X, SDL_SCANCODE_Z, SDL_SCANCODE_BACKSPACE, SDL_SCANCODE_RETURN, SDL_SCANCODE_SPACE }, .keys_2 = { SDL_SCANCODE_TAB, SDL_SCANCODE_LSHIFT, }, .joypad_configuration = { 13, 14, 11, 12, 0, 1, 9, 8, 10, 4, -1, 5, }, .joypad_axises = { 0, 1, }, .color_correction_mode = GB_COLOR_CORRECTION_EMULATE_HARDWARE, .highpass_mode = GB_HIGHPASS_ACCURATE, .scaling_mode = GB_SDL_SCALING_INTEGER_FACTOR, .blending_mode = GB_FRAME_BLENDING_MODE_ACCURATE, .rewind_length = 60 * 2, .model = MODEL_CGB, .volume = 100, .rumble_mode = GB_RUMBLE_ALL_GAMES, .default_scale = 2, .color_temperature = 10, }; static const char *help[] = { "Drop a ROM to play.\n" "\n" "Keyboard Shortcuts:\n" " Open Menu: Escape\n" " Open ROM: " MODIFIER_NAME "+O\n" " Reset: " MODIFIER_NAME "+R\n" " Pause: " MODIFIER_NAME "+P\n" " Save state: " MODIFIER_NAME "+(0-9)\n" " Load state: " MODIFIER_NAME "+" SHIFT_STRING "+(0-9)\n" " Toggle Fullscreen " MODIFIER_NAME "+F\n" #ifdef __APPLE__ " Mute/Unmute: " MODIFIER_NAME "+" SHIFT_STRING "+M\n" #else " Mute/Unmute: " MODIFIER_NAME "+M\n" #endif " Break Debugger: " CTRL_STRING "+C" }; void update_viewport(void) { int win_width, win_height; SDL_GL_GetDrawableSize(window, &win_width, &win_height); int logical_width, logical_height; SDL_GetWindowSize(window, &logical_width, &logical_height); factor = win_width / logical_width; double x_factor = win_width / (double) GB_get_screen_width(&gb); double y_factor = win_height / (double) GB_get_screen_height(&gb); if (configuration.scaling_mode == GB_SDL_SCALING_INTEGER_FACTOR) { x_factor = (unsigned)(x_factor); y_factor = (unsigned)(y_factor); } if (configuration.scaling_mode != GB_SDL_SCALING_ENTIRE_WINDOW) { if (x_factor > y_factor) { x_factor = y_factor; } else { y_factor = x_factor; } } unsigned new_width = x_factor * GB_get_screen_width(&gb); unsigned new_height = y_factor * GB_get_screen_height(&gb); rect = (SDL_Rect){(win_width - new_width) / 2, (win_height - new_height) /2, new_width, new_height}; if (renderer) { SDL_RenderSetViewport(renderer, &rect); } else { glViewport(rect.x, rect.y, rect.w, rect.h); } } static void rescale_window(void) { SDL_SetWindowSize(window, GB_get_screen_width(&gb) * configuration.default_scale, GB_get_screen_height(&gb) * configuration.default_scale); } static void draw_char(uint32_t *buffer, unsigned width, unsigned height, unsigned char ch, uint32_t color, uint32_t *mask_top, uint32_t *mask_bottom) { if (ch < ' ' || ch > font_max) { ch = '?'; } uint8_t *data = &font[(ch - ' ') * GLYPH_WIDTH * GLYPH_HEIGHT]; for (unsigned y = GLYPH_HEIGHT; y--;) { for (unsigned x = GLYPH_WIDTH; x--;) { if (*(data++) && buffer >= mask_top && buffer < mask_bottom) { (*buffer) = color; } buffer++; } buffer += width - GLYPH_WIDTH; } } static signed scroll = 0; static void draw_unbordered_text(uint32_t *buffer, unsigned width, unsigned height, unsigned x, signed y, const char *string, uint32_t color, bool is_osd) { if (!is_osd) { y -= scroll; } unsigned orig_x = x; unsigned y_offset = is_osd? 0 : (GB_get_screen_height(&gb) - 144) / 2; while (*string) { if (*string == '\n') { x = orig_x; y += GLYPH_HEIGHT + 4; string++; continue; } if (x > width - GLYPH_WIDTH) { break; } draw_char(&buffer[(signed)(x + width * y)], width, height, *string, color, &buffer[width * y_offset], &buffer[width * (is_osd? GB_get_screen_height(&gb) : y_offset + 144)]); x += GLYPH_WIDTH; string++; } } void draw_text(uint32_t *buffer, unsigned width, unsigned height, unsigned x, signed y, const char *string, uint32_t color, uint32_t border, bool is_osd) { draw_unbordered_text(buffer, width, height, x - 1, y, string, border, is_osd); draw_unbordered_text(buffer, width, height, x + 1, y, string, border, is_osd); draw_unbordered_text(buffer, width, height, x, y - 1, string, border, is_osd); draw_unbordered_text(buffer, width, height, x, y + 1, string, border, is_osd); draw_unbordered_text(buffer, width, height, x, y, string, color, is_osd); } const char *osd_text = NULL; unsigned osd_countdown = 0; unsigned osd_text_lines = 1; void show_osd_text(const char *text) { osd_text_lines = 1; osd_text = text; osd_countdown = 30; while (*text++) { if (*text == '\n') { osd_text_lines++; osd_countdown += 30; } } } enum decoration { DECORATION_NONE, DECORATION_SELECTION, DECORATION_ARROWS, }; static void draw_text_centered(uint32_t *buffer, unsigned width, unsigned height, unsigned y, const char *string, uint32_t color, uint32_t border, enum decoration decoration) { unsigned x = width / 2 - (unsigned) strlen(string) * GLYPH_WIDTH / 2; draw_text(buffer, width, height, x, y, string, color, border, false); switch (decoration) { case DECORATION_SELECTION: draw_text(buffer, width, height, x - GLYPH_WIDTH, y, SELECTION_STRING, color, border, false); break; case DECORATION_ARROWS: draw_text(buffer, width, height, x - GLYPH_WIDTH, y, LEFT_ARROW_STRING, color, border, false); draw_text(buffer, width, height, width - x, y, RIGHT_ARROW_STRING, color, border, false); break; case DECORATION_NONE: break; } } struct menu_item { const char *string; void (*handler)(unsigned); const char *(*value_getter)(unsigned); void (*backwards_handler)(unsigned); }; static const struct menu_item *current_menu = NULL; static const struct menu_item *root_menu = NULL; static unsigned menu_height; static unsigned scrollbar_size; static bool mouse_scroling = false; static unsigned current_selection = 0; static enum { SHOWING_DROP_MESSAGE, SHOWING_MENU, SHOWING_HELP, WAITING_FOR_KEY, WAITING_FOR_JBUTTON, } gui_state; static unsigned joypad_configuration_progress = 0; static uint8_t joypad_axis_temp; static void item_exit(unsigned index) { pending_command = GB_SDL_QUIT_COMMAND; } static unsigned current_help_page = 0; static void item_help(unsigned index) { current_help_page = 0; gui_state = SHOWING_HELP; } static void enter_emulation_menu(unsigned index); static void enter_graphics_menu(unsigned index); static void enter_controls_menu(unsigned index); static void enter_joypad_menu(unsigned index); static void enter_audio_menu(unsigned index); extern void set_filename(const char *new_filename, typeof(free) *new_free_function); static void open_rom(unsigned index) { char *filename = do_open_rom_dialog(); if (filename) { set_filename(filename, free); pending_command = GB_SDL_NEW_FILE_COMMAND; } } static void recalculate_menu_height(void) { menu_height = 24; scrollbar_size = 0; if (gui_state == SHOWING_MENU) { for (const struct menu_item *item = current_menu; item->string; item++) { menu_height += 12; if (item->backwards_handler) { menu_height += 12; } } } if (menu_height > 144) { scrollbar_size = 144 * 140 / menu_height; } } static const struct menu_item paused_menu[] = { {"Resume", NULL}, {"Open ROM", open_rom}, {"Emulation Options", enter_emulation_menu}, {"Graphic Options", enter_graphics_menu}, {"Audio Options", enter_audio_menu}, {"Keyboard", enter_controls_menu}, {"Joypad", enter_joypad_menu}, {"Help", item_help}, {"Quit SameBoy", item_exit}, {NULL,} }; static const struct menu_item *const nonpaused_menu = &paused_menu[1]; static void return_to_root_menu(unsigned index) { current_menu = root_menu; current_selection = 0; scroll = 0; recalculate_menu_height(); } static void cycle_model(unsigned index) { configuration.model++; if (configuration.model == MODEL_MAX) { configuration.model = 0; } pending_command = GB_SDL_RESET_COMMAND; } static void cycle_model_backwards(unsigned index) { if (configuration.model == 0) { configuration.model = MODEL_MAX; } configuration.model--; pending_command = GB_SDL_RESET_COMMAND; } const char *current_model_string(unsigned index) { return (const char *[]){"Game Boy", "Game Boy Color", "Game Boy Advance", "Super Game Boy", "Game Boy Pocket"} [configuration.model]; } static void cycle_sgb_revision(unsigned index) { configuration.sgb_revision++; if (configuration.sgb_revision == SGB_MAX) { configuration.sgb_revision = 0; } pending_command = GB_SDL_RESET_COMMAND; } static void cycle_sgb_revision_backwards(unsigned index) { if (configuration.sgb_revision == 0) { configuration.sgb_revision = SGB_MAX; } configuration.sgb_revision--; pending_command = GB_SDL_RESET_COMMAND; } const char *current_sgb_revision_string(unsigned index) { return (const char *[]){"Super Game Boy NTSC", "Super Game Boy PAL", "Super Game Boy 2"} [configuration.sgb_revision]; } static const uint32_t rewind_lengths[] = {0, 10, 30, 60, 60 * 2, 60 * 5, 60 * 10}; static const char *rewind_strings[] = {"Disabled", "10 Seconds", "30 Seconds", "1 Minute", "2 Minutes", "5 Minutes", "10 Minutes", }; static void cycle_rewind(unsigned index) { for (unsigned i = 0; i < sizeof(rewind_lengths) / sizeof(rewind_lengths[0]) - 1; i++) { if (configuration.rewind_length == rewind_lengths[i]) { configuration.rewind_length = rewind_lengths[i + 1]; GB_set_rewind_length(&gb, configuration.rewind_length); return; } } configuration.rewind_length = rewind_lengths[0]; GB_set_rewind_length(&gb, configuration.rewind_length); } static void cycle_rewind_backwards(unsigned index) { for (unsigned i = 1; i < sizeof(rewind_lengths) / sizeof(rewind_lengths[0]); i++) { if (configuration.rewind_length == rewind_lengths[i]) { configuration.rewind_length = rewind_lengths[i - 1]; GB_set_rewind_length(&gb, configuration.rewind_length); return; } } configuration.rewind_length = rewind_lengths[sizeof(rewind_lengths) / sizeof(rewind_lengths[0]) - 1]; GB_set_rewind_length(&gb, configuration.rewind_length); } const char *current_rewind_string(unsigned index) { for (unsigned i = 0; i < sizeof(rewind_lengths) / sizeof(rewind_lengths[0]); i++) { if (configuration.rewind_length == rewind_lengths[i]) { return rewind_strings[i]; } } return "Custom"; } const char *current_bootrom_string(unsigned index) { if (!configuration.bootrom_path[0]) { return "Built-in Boot ROMs"; } size_t length = strlen(configuration.bootrom_path); static char ret[24] = {0,}; if (length <= 23) { strcpy(ret, configuration.bootrom_path); } else { memcpy(ret, configuration.bootrom_path, 11); memcpy(ret + 12, configuration.bootrom_path + length - 11, 11); } for (unsigned i = 0; i < 24; i++) { if (ret[i] < 0) { ret[i] = MOJIBAKE_STRING[0]; } } if (length > 23) { ret[11] = ELLIPSIS_STRING[0]; } return ret; } static void toggle_bootrom(unsigned index) { if (configuration.bootrom_path[0]) { configuration.bootrom_path[0] = 0; } else { char *folder = do_open_folder_dialog(); if (!folder) return; if (strlen(folder) < sizeof(configuration.bootrom_path) - 1) { strcpy(configuration.bootrom_path, folder); } free(folder); } } static void toggle_rtc_mode(unsigned index) { configuration.rtc_mode = !configuration.rtc_mode; } const char *current_rtc_mode_string(unsigned index) { switch (configuration.rtc_mode) { case GB_RTC_MODE_SYNC_TO_HOST: return "Sync to System Clock"; case GB_RTC_MODE_ACCURATE: return "Accurate"; } return ""; } static const struct menu_item emulation_menu[] = { {"Emulated Model:", cycle_model, current_model_string, cycle_model_backwards}, {"SGB Revision:", cycle_sgb_revision, current_sgb_revision_string, cycle_sgb_revision_backwards}, {"Boot ROMs Folder:", toggle_bootrom, current_bootrom_string, toggle_bootrom}, {"Rewind Length:", cycle_rewind, current_rewind_string, cycle_rewind_backwards}, {"Real Time Clock:", toggle_rtc_mode, current_rtc_mode_string, toggle_rtc_mode}, {"Back", return_to_root_menu}, {NULL,} }; static void enter_emulation_menu(unsigned index) { current_menu = emulation_menu; current_selection = 0; scroll = 0; recalculate_menu_height(); } const char *current_scaling_mode(unsigned index) { return (const char *[]){"Fill Entire Window", "Retain Aspect Ratio", "Retain Integer Factor"} [configuration.scaling_mode]; } const char *current_default_scale(unsigned index) { return (const char *[]){"1x", "2x", "3x", "4x", "5x", "6x", "7x", "8x"} [configuration.default_scale - 1]; } const char *current_color_correction_mode(unsigned index) { return (const char *[]){"Disabled", "Correct Color Curves", "Emulate Hardware", "Preserve Brightness", "Reduce Contrast", "Harsh Reality"} [configuration.color_correction_mode]; } const char *current_color_temperature(unsigned index) { static char ret[22]; strcpy(ret, SLIDER_STRING); ret[configuration.color_temperature] = SELECTED_SLIDER_STRING[configuration.color_temperature]; return ret; } const char *current_palette(unsigned index) { return (const char *[]){"Greyscale", "Lime (Game Boy)", "Olive (Pocket)", "Teal (Light)"} [configuration.dmg_palette]; } const char *current_border_mode(unsigned index) { return (const char *[]){"SGB Only", "Never", "Always"} [configuration.border_mode]; } void cycle_scaling(unsigned index) { configuration.scaling_mode++; if (configuration.scaling_mode == GB_SDL_SCALING_MAX) { configuration.scaling_mode = 0; } update_viewport(); render_texture(NULL, NULL); } void cycle_scaling_backwards(unsigned index) { if (configuration.scaling_mode == 0) { configuration.scaling_mode = GB_SDL_SCALING_MAX - 1; } else { configuration.scaling_mode--; } update_viewport(); render_texture(NULL, NULL); } void cycle_default_scale(unsigned index) { if (configuration.default_scale == GB_SDL_DEFAULT_SCALE_MAX) { configuration.default_scale = 1; } else { configuration.default_scale++; } rescale_window(); update_viewport(); } void cycle_default_scale_backwards(unsigned index) { if (configuration.default_scale == 1) { configuration.default_scale = GB_SDL_DEFAULT_SCALE_MAX; } else { configuration.default_scale--; } rescale_window(); update_viewport(); } static void cycle_color_correction(unsigned index) { if (configuration.color_correction_mode == GB_COLOR_CORRECTION_LOW_CONTRAST) { configuration.color_correction_mode = GB_COLOR_CORRECTION_DISABLED; } else { configuration.color_correction_mode++; } } static void cycle_color_correction_backwards(unsigned index) { if (configuration.color_correction_mode == GB_COLOR_CORRECTION_DISABLED) { configuration.color_correction_mode = GB_COLOR_CORRECTION_LOW_CONTRAST; } else { configuration.color_correction_mode--; } } static void decrease_color_temperature(unsigned index) { if (configuration.color_temperature < 20) { configuration.color_temperature++; } } static void increase_color_temperature(unsigned index) { if (configuration.color_temperature > 0) { configuration.color_temperature--; } } static void cycle_palette(unsigned index) { if (configuration.dmg_palette == 3) { configuration.dmg_palette = 0; } else { configuration.dmg_palette++; } } static void cycle_palette_backwards(unsigned index) { if (configuration.dmg_palette == 0) { configuration.dmg_palette = 3; } else { configuration.dmg_palette--; } } static void cycle_border_mode(unsigned index) { if (configuration.border_mode == GB_BORDER_ALWAYS) { configuration.border_mode = GB_BORDER_SGB; } else { configuration.border_mode++; } } static void cycle_border_mode_backwards(unsigned index) { if (configuration.border_mode == GB_BORDER_SGB) { configuration.border_mode = GB_BORDER_ALWAYS; } else { configuration.border_mode--; } } extern bool uses_gl(void); struct shader_name { const char *file_name; const char *display_name; } shaders[] = { {"NearestNeighbor", "Nearest Neighbor"}, {"Bilinear", "Bilinear"}, {"SmoothBilinear", "Smooth Bilinear"}, {"MonoLCD", "Monochrome LCD"}, {"LCD", "LCD Display"}, {"CRT", "CRT Display"}, {"Scale2x", "Scale2x"}, {"Scale4x", "Scale4x"}, {"AAScale2x", "Anti-aliased Scale2x"}, {"AAScale4x", "Anti-aliased Scale4x"}, {"HQ2x", "HQ2x"}, {"OmniScale", "OmniScale"}, {"OmniScaleLegacy", "OmniScale Legacy"}, {"AAOmniScaleLegacy", "AA OmniScale Legacy"}, }; static void cycle_filter(unsigned index) { if (!uses_gl()) return; unsigned i = 0; for (; i < sizeof(shaders) / sizeof(shaders[0]); i++) { if (strcmp(shaders[i].file_name, configuration.filter) == 0) { break; } } i += 1; if (i >= sizeof(shaders) / sizeof(shaders[0])) { i -= sizeof(shaders) / sizeof(shaders[0]); } strcpy(configuration.filter, shaders[i].file_name); free_shader(&shader); if (!init_shader_with_name(&shader, configuration.filter)) { init_shader_with_name(&shader, "NearestNeighbor"); } } static void cycle_filter_backwards(unsigned index) { if (!uses_gl()) return; unsigned i = 0; for (; i < sizeof(shaders) / sizeof(shaders[0]); i++) { if (strcmp(shaders[i].file_name, configuration.filter) == 0) { break; } } i -= 1; if (i >= sizeof(shaders) / sizeof(shaders[0])) { i = sizeof(shaders) / sizeof(shaders[0]) - 1; } strcpy(configuration.filter, shaders[i].file_name); free_shader(&shader); if (!init_shader_with_name(&shader, configuration.filter)) { init_shader_with_name(&shader, "NearestNeighbor"); } } static const char *current_filter_name(unsigned index) { if (!uses_gl()) return "Requires OpenGL 3.2+"; unsigned i = 0; for (; i < sizeof(shaders) / sizeof(shaders[0]); i++) { if (strcmp(shaders[i].file_name, configuration.filter) == 0) { break; } } if (i == sizeof(shaders) / sizeof(shaders[0])) { i = 0; } return shaders[i].display_name; } static void cycle_blending_mode(unsigned index) { if (!uses_gl()) return; if (configuration.blending_mode == GB_FRAME_BLENDING_MODE_ACCURATE) { configuration.blending_mode = GB_FRAME_BLENDING_MODE_DISABLED; } else { configuration.blending_mode++; } } static void cycle_blending_mode_backwards(unsigned index) { if (!uses_gl()) return; if (configuration.blending_mode == GB_FRAME_BLENDING_MODE_DISABLED) { configuration.blending_mode = GB_FRAME_BLENDING_MODE_ACCURATE; } else { configuration.blending_mode--; } } static const char *blending_mode_string(unsigned index) { if (!uses_gl()) return "Requires OpenGL 3.2+"; return (const char *[]){"Disabled", "Simple", "Accurate"} [configuration.blending_mode]; } static void toggle_osd(unsigned index) { osd_countdown = 0; configuration.osd = !configuration.osd; } static const char *current_osd_mode(unsigned index) { return configuration.osd? "Enabled" : "Disabled"; } static const struct menu_item graphics_menu[] = { {"Scaling Mode:", cycle_scaling, current_scaling_mode, cycle_scaling_backwards}, {"Default Window Scale:", cycle_default_scale, current_default_scale, cycle_default_scale_backwards}, {"Scaling Filter:", cycle_filter, current_filter_name, cycle_filter_backwards}, {"Color Correction:", cycle_color_correction, current_color_correction_mode, cycle_color_correction_backwards}, {"Ambient Light Temp.:", decrease_color_temperature, current_color_temperature, increase_color_temperature}, {"Frame Blending:", cycle_blending_mode, blending_mode_string, cycle_blending_mode_backwards}, {"Mono Palette:", cycle_palette, current_palette, cycle_palette_backwards}, {"Display Border:", cycle_border_mode, current_border_mode, cycle_border_mode_backwards}, {"On-Screen Display:", toggle_osd, current_osd_mode, toggle_osd}, {"Back", return_to_root_menu}, {NULL,} }; static void enter_graphics_menu(unsigned index) { current_menu = graphics_menu; current_selection = 0; scroll = 0; recalculate_menu_height(); } const char *highpass_filter_string(unsigned index) { return (const char *[]){"None (Keep DC Offset)", "Accurate", "Preserve Waveform"} [configuration.highpass_mode]; } void cycle_highpass_filter(unsigned index) { configuration.highpass_mode++; if (configuration.highpass_mode == GB_HIGHPASS_MAX) { configuration.highpass_mode = 0; } } void cycle_highpass_filter_backwards(unsigned index) { if (configuration.highpass_mode == 0) { configuration.highpass_mode = GB_HIGHPASS_MAX - 1; } else { configuration.highpass_mode--; } } const char *volume_string(unsigned index) { static char ret[5]; sprintf(ret, "%d%%", configuration.volume); return ret; } void increase_volume(unsigned index) { configuration.volume += 5; if (configuration.volume > 100) { configuration.volume = 100; } } void decrease_volume(unsigned index) { configuration.volume -= 5; if (configuration.volume > 100) { configuration.volume = 0; } } const char *interference_volume_string(unsigned index) { static char ret[5]; sprintf(ret, "%d%%", configuration.interference_volume); return ret; } void increase_interference_volume(unsigned index) { configuration.interference_volume += 5; if (configuration.interference_volume > 100) { configuration.interference_volume = 100; } } void decrease_interference_volume(unsigned index) { configuration.interference_volume -= 5; if (configuration.interference_volume > 100) { configuration.interference_volume = 0; } } static const struct menu_item audio_menu[] = { {"Highpass Filter:", cycle_highpass_filter, highpass_filter_string, cycle_highpass_filter_backwards}, {"Volume:", increase_volume, volume_string, decrease_volume}, {"Interference Volume:", increase_interference_volume, interference_volume_string, decrease_interference_volume}, {"Back", return_to_root_menu}, {NULL,} }; static void enter_audio_menu(unsigned index) { current_menu = audio_menu; current_selection = 0; scroll = 0; recalculate_menu_height(); } static void modify_key(unsigned index) { gui_state = WAITING_FOR_KEY; } static const char *key_name(unsigned index); static const struct menu_item controls_menu[] = { {"Right:", modify_key, key_name,}, {"Left:", modify_key, key_name,}, {"Up:", modify_key, key_name,}, {"Down:", modify_key, key_name,}, {"A:", modify_key, key_name,}, {"B:", modify_key, key_name,}, {"Select:", modify_key, key_name,}, {"Start:", modify_key, key_name,}, {"Turbo:", modify_key, key_name,}, {"Rewind:", modify_key, key_name,}, {"Slow-Motion:", modify_key, key_name,}, {"Back", return_to_root_menu}, {NULL,} }; static const char *key_name(unsigned index) { if (index > 8) { return SDL_GetScancodeName(configuration.keys_2[index - 9]); } return SDL_GetScancodeName(configuration.keys[index]); } static void enter_controls_menu(unsigned index) { current_menu = controls_menu; current_selection = 0; scroll = 0; recalculate_menu_height(); } static unsigned joypad_index = 0; static SDL_Joystick *joystick = NULL; static SDL_GameController *controller = NULL; SDL_Haptic *haptic = NULL; const char *current_joypad_name(unsigned index) { static char name[23] = {0,}; const char *orig_name = joystick? SDL_JoystickName(joystick) : NULL; if (!orig_name) return "Not Found"; unsigned i = 0; // SDL returns a name with repeated and trailing spaces while (*orig_name && i < sizeof(name) - 2) { if (orig_name[0] != ' ' || orig_name[1] != ' ') { name[i++] = *orig_name > 0? *orig_name : MOJIBAKE_STRING[0]; } orig_name++; } if (i && name[i - 1] == ' ') { i--; } name[i] = 0; return name; } static void cycle_joypads(unsigned index) { joypad_index++; if (joypad_index >= SDL_NumJoysticks()) { joypad_index = 0; } if (haptic) { SDL_HapticClose(haptic); haptic = NULL; } if (controller) { SDL_GameControllerClose(controller); controller = NULL; } else if (joystick) { SDL_JoystickClose(joystick); joystick = NULL; } if ((controller = SDL_GameControllerOpen(joypad_index))) { joystick = SDL_GameControllerGetJoystick(controller); } else { joystick = SDL_JoystickOpen(joypad_index); } if (joystick) { haptic = SDL_HapticOpenFromJoystick(joystick); }} static void cycle_joypads_backwards(unsigned index) { joypad_index--; if (joypad_index >= SDL_NumJoysticks()) { joypad_index = SDL_NumJoysticks() - 1; } if (haptic) { SDL_HapticClose(haptic); haptic = NULL; } if (controller) { SDL_GameControllerClose(controller); controller = NULL; } else if (joystick) { SDL_JoystickClose(joystick); joystick = NULL; } if ((controller = SDL_GameControllerOpen(joypad_index))) { joystick = SDL_GameControllerGetJoystick(controller); } else { joystick = SDL_JoystickOpen(joypad_index); } if (joystick) { haptic = SDL_HapticOpenFromJoystick(joystick); }} static void detect_joypad_layout(unsigned index) { gui_state = WAITING_FOR_JBUTTON; joypad_configuration_progress = 0; joypad_axis_temp = -1; } static void cycle_rumble_mode(unsigned index) { if (configuration.rumble_mode == GB_RUMBLE_ALL_GAMES) { configuration.rumble_mode = GB_RUMBLE_DISABLED; } else { configuration.rumble_mode++; } } static void cycle_rumble_mode_backwards(unsigned index) { if (configuration.rumble_mode == GB_RUMBLE_DISABLED) { configuration.rumble_mode = GB_RUMBLE_ALL_GAMES; } else { configuration.rumble_mode--; } } const char *current_rumble_mode(unsigned index) { return (const char *[]){"Disabled", "Rumble Game Paks Only", "All Games"} [configuration.rumble_mode]; } static const struct menu_item joypad_menu[] = { {"Joypad:", cycle_joypads, current_joypad_name, cycle_joypads_backwards}, {"Configure layout", detect_joypad_layout}, {"Rumble Mode:", cycle_rumble_mode, current_rumble_mode, cycle_rumble_mode_backwards}, {"Back", return_to_root_menu}, {NULL,} }; static void enter_joypad_menu(unsigned index) { current_menu = joypad_menu; current_selection = 0; scroll = 0; recalculate_menu_height(); } joypad_button_t get_joypad_button(uint8_t physical_button) { for (unsigned i = 0; i < JOYPAD_BUTTONS_MAX; i++) { if (configuration.joypad_configuration[i] == physical_button) { return i; } } return JOYPAD_BUTTONS_MAX; } joypad_axis_t get_joypad_axis(uint8_t physical_axis) { for (unsigned i = 0; i < JOYPAD_AXISES_MAX; i++) { if (configuration.joypad_axises[i] == physical_axis) { return i; } } return JOYPAD_AXISES_MAX; } void connect_joypad(void) { if (joystick && !SDL_NumJoysticks()) { if (controller) { SDL_GameControllerClose(controller); controller = NULL; joystick = NULL; } else { SDL_JoystickClose(joystick); joystick = NULL; } } else if (!joystick && SDL_NumJoysticks()) { if ((controller = SDL_GameControllerOpen(0))) { joystick = SDL_GameControllerGetJoystick(controller); } else { joystick = SDL_JoystickOpen(0); } } if (joystick) { haptic = SDL_HapticOpenFromJoystick(joystick); } } void run_gui(bool is_running) { SDL_ShowCursor(SDL_ENABLE); connect_joypad(); /* Draw the background screen */ static SDL_Surface *converted_background = NULL; if (!converted_background) { SDL_Surface *background = SDL_LoadBMP(resource_path("background.bmp")); /* Create a blank background if background.bmp could not be loaded */ if (!background) { background = SDL_CreateRGBSurface(0, 160, 144, 8, 0, 0, 0, 0); } SDL_SetPaletteColors(background->format->palette, gui_palette, 0, 4); converted_background = SDL_ConvertSurface(background, pixel_format, 0); SDL_LockSurface(converted_background); SDL_FreeSurface(background); for (unsigned i = 4; i--; ) { gui_palette_native[i] = SDL_MapRGB(pixel_format, gui_palette[i].r, gui_palette[i].g, gui_palette[i].b); } } unsigned width = GB_get_screen_width(&gb); unsigned height = GB_get_screen_height(&gb); unsigned x_offset = (width - 160) / 2; unsigned y_offset = (height - 144) / 2; uint32_t pixels[width * height]; if (width != 160 || height != 144) { for (unsigned i = 0; i < width * height; i++) { pixels[i] = gui_palette_native[0]; } } SDL_Event event = {0,}; gui_state = is_running? SHOWING_MENU : SHOWING_DROP_MESSAGE; bool should_render = true; current_menu = root_menu = is_running? paused_menu : nonpaused_menu; recalculate_menu_height(); current_selection = 0; scroll = 0; do { /* Convert Joypad and mouse events (We only generate down events) */ if (gui_state != WAITING_FOR_KEY && gui_state != WAITING_FOR_JBUTTON) { switch (event.type) { case SDL_WINDOWEVENT: should_render = true; break; case SDL_MOUSEBUTTONDOWN: if (gui_state == SHOWING_HELP) { event.type = SDL_KEYDOWN; event.key.keysym.scancode = SDL_SCANCODE_RETURN; } else if (gui_state == SHOWING_DROP_MESSAGE) { event.type = SDL_KEYDOWN; event.key.keysym.scancode = SDL_SCANCODE_ESCAPE; } else if (gui_state == SHOWING_MENU) { signed x = (event.button.x - rect.x / factor) * width / (rect.w / factor) - x_offset; signed y = (event.button.y - rect.y / factor) * height / (rect.h / factor) - y_offset; if (strcmp("CRT", configuration.filter) == 0) { y = y * 8 / 7; y -= 144 / 16; } y += scroll; if (x < 0 || x >= 160 || y < 24) { continue; } unsigned item_y = 24; unsigned index = 0; for (const struct menu_item *item = current_menu; item->string; item++, index++) { if (!item->backwards_handler) { if (y >= item_y && y < item_y + 12) { break; } item_y += 12; } else { if (y >= item_y && y < item_y + 24) { break; } item_y += 24; } } if (!current_menu[index].string) continue; current_selection = index; event.type = SDL_KEYDOWN; if (current_menu[index].backwards_handler) { event.key.keysym.scancode = x < 80? SDL_SCANCODE_LEFT : SDL_SCANCODE_RIGHT; } else { event.key.keysym.scancode = SDL_SCANCODE_RETURN; } } break; case SDL_JOYBUTTONDOWN: event.type = SDL_KEYDOWN; joypad_button_t button = get_joypad_button(event.jbutton.button); if (button == JOYPAD_BUTTON_A) { event.key.keysym.scancode = SDL_SCANCODE_RETURN; } else if (button == JOYPAD_BUTTON_MENU) { event.key.keysym.scancode = SDL_SCANCODE_ESCAPE; } else if (button == JOYPAD_BUTTON_UP) event.key.keysym.scancode = SDL_SCANCODE_UP; else if (button == JOYPAD_BUTTON_DOWN) event.key.keysym.scancode = SDL_SCANCODE_DOWN; else if (button == JOYPAD_BUTTON_LEFT) event.key.keysym.scancode = SDL_SCANCODE_LEFT; else if (button == JOYPAD_BUTTON_RIGHT) event.key.keysym.scancode = SDL_SCANCODE_RIGHT; break; case SDL_JOYHATMOTION: { uint8_t value = event.jhat.value; if (value != 0) { uint32_t scancode = value == SDL_HAT_UP ? SDL_SCANCODE_UP : value == SDL_HAT_DOWN ? SDL_SCANCODE_DOWN : value == SDL_HAT_LEFT ? SDL_SCANCODE_LEFT : value == SDL_HAT_RIGHT ? SDL_SCANCODE_RIGHT : 0; if (scancode != 0) { event.type = SDL_KEYDOWN; event.key.keysym.scancode = scancode; } } break; } case SDL_JOYAXISMOTION: { static bool axis_active[2] = {false, false}; joypad_axis_t axis = get_joypad_axis(event.jaxis.axis); if (axis == JOYPAD_AXISES_X) { if (!axis_active[0] && event.jaxis.value > JOYSTICK_HIGH) { axis_active[0] = true; event.type = SDL_KEYDOWN; event.key.keysym.scancode = SDL_SCANCODE_RIGHT; } else if (!axis_active[0] && event.jaxis.value < -JOYSTICK_HIGH) { axis_active[0] = true; event.type = SDL_KEYDOWN; event.key.keysym.scancode = SDL_SCANCODE_LEFT; } else if (axis_active[0] && event.jaxis.value < JOYSTICK_LOW && event.jaxis.value > -JOYSTICK_LOW) { axis_active[0] = false; } } else if (axis == JOYPAD_AXISES_Y) { if (!axis_active[1] && event.jaxis.value > JOYSTICK_HIGH) { axis_active[1] = true; event.type = SDL_KEYDOWN; event.key.keysym.scancode = SDL_SCANCODE_DOWN; } else if (!axis_active[1] && event.jaxis.value < -JOYSTICK_HIGH) { axis_active[1] = true; event.type = SDL_KEYDOWN; event.key.keysym.scancode = SDL_SCANCODE_UP; } else if (axis_active[1] && event.jaxis.value < JOYSTICK_LOW && event.jaxis.value > -JOYSTICK_LOW) { axis_active[1] = false; } } } } } switch (event.type) { case SDL_QUIT: { if (!is_running) { exit(0); } else { pending_command = GB_SDL_QUIT_COMMAND; return; } } case SDL_WINDOWEVENT: { if (event.window.event == SDL_WINDOWEVENT_RESIZED) { update_viewport(); render_texture(NULL, NULL); } break; } case SDL_DROPFILE: { if (GB_is_save_state(event.drop.file)) { if (GB_is_inited(&gb)) { dropped_state_file = event.drop.file; pending_command = GB_SDL_LOAD_STATE_FROM_FILE_COMMAND; } else { SDL_free(event.drop.file); } break; } else { set_filename(event.drop.file, SDL_free); pending_command = GB_SDL_NEW_FILE_COMMAND; return; } } case SDL_JOYBUTTONDOWN: { if (gui_state == WAITING_FOR_JBUTTON && joypad_configuration_progress != JOYPAD_BUTTONS_MAX) { should_render = true; configuration.joypad_configuration[joypad_configuration_progress++] = event.jbutton.button; } break; } case SDL_JOYAXISMOTION: { if (gui_state == WAITING_FOR_JBUTTON && joypad_configuration_progress == JOYPAD_BUTTONS_MAX && abs(event.jaxis.value) >= 0x4000) { if (joypad_axis_temp == (uint8_t)-1) { joypad_axis_temp = event.jaxis.axis; } else if (joypad_axis_temp != event.jaxis.axis) { if (joypad_axis_temp < event.jaxis.axis) { configuration.joypad_axises[JOYPAD_AXISES_X] = joypad_axis_temp; configuration.joypad_axises[JOYPAD_AXISES_Y] = event.jaxis.axis; } else { configuration.joypad_axises[JOYPAD_AXISES_Y] = joypad_axis_temp; configuration.joypad_axises[JOYPAD_AXISES_X] = event.jaxis.axis; } gui_state = SHOWING_MENU; should_render = true; } } break; } case SDL_MOUSEWHEEL: { if (menu_height > 144) { scroll -= event.wheel.y; if (scroll < 0) { scroll = 0; } if (scroll >= menu_height - 144) { scroll = menu_height - 144; } mouse_scroling = true; should_render = true; } break; } case SDL_KEYDOWN: if (gui_state == WAITING_FOR_KEY) { if (current_selection > 8) { configuration.keys_2[current_selection - 9] = event.key.keysym.scancode; } else { configuration.keys[current_selection] = event.key.keysym.scancode; } gui_state = SHOWING_MENU; should_render = true; } else if (event_hotkey_code(&event) == SDL_SCANCODE_F && event.key.keysym.mod & MODIFIER) { if ((SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN_DESKTOP) == false) { SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN_DESKTOP); } else { SDL_SetWindowFullscreen(window, 0); } update_viewport(); } else if (event_hotkey_code(&event) == 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; return; } } } else if (event.key.keysym.scancode == SDL_SCANCODE_RETURN && gui_state == WAITING_FOR_JBUTTON) { should_render = true; if (joypad_configuration_progress != JOYPAD_BUTTONS_MAX) { configuration.joypad_configuration[joypad_configuration_progress] = -1; } else { configuration.joypad_axises[0] = -1; configuration.joypad_axises[1] = -1; } joypad_configuration_progress++; if (joypad_configuration_progress > JOYPAD_BUTTONS_MAX) { gui_state = SHOWING_MENU; } } else if (event.key.keysym.scancode == SDL_SCANCODE_ESCAPE) { if (gui_state == SHOWING_MENU && current_menu != root_menu) { return_to_root_menu(0); should_render = true; } else if (is_running) { return; } else { if (gui_state == SHOWING_DROP_MESSAGE) { gui_state = SHOWING_MENU; } else if (gui_state == SHOWING_MENU) { gui_state = SHOWING_DROP_MESSAGE; } current_selection = 0; mouse_scroling = false; scroll = 0; current_menu = root_menu; recalculate_menu_height(); should_render = true; } } else if (gui_state == SHOWING_MENU) { if (event.key.keysym.scancode == SDL_SCANCODE_DOWN && current_menu[current_selection + 1].string) { current_selection++; mouse_scroling = false; should_render = true; } else if (event.key.keysym.scancode == SDL_SCANCODE_UP && current_selection) { current_selection--; mouse_scroling = false; should_render = true; } else if (event.key.keysym.scancode == SDL_SCANCODE_RETURN && !current_menu[current_selection].backwards_handler) { if (current_menu[current_selection].handler) { current_menu[current_selection].handler(current_selection); if (pending_command == GB_SDL_RESET_COMMAND && !is_running) { pending_command = GB_SDL_NO_COMMAND; } if (pending_command) { if (!is_running && pending_command == GB_SDL_QUIT_COMMAND) { exit(0); } return; } should_render = true; } else { return; } } else if (event.key.keysym.scancode == SDL_SCANCODE_RIGHT && current_menu[current_selection].backwards_handler) { current_menu[current_selection].handler(current_selection); should_render = true; } else if (event.key.keysym.scancode == SDL_SCANCODE_LEFT && current_menu[current_selection].backwards_handler) { current_menu[current_selection].backwards_handler(current_selection); should_render = true; } } else if (gui_state == SHOWING_HELP) { current_help_page++; if (current_help_page == sizeof(help) / sizeof(help[0])) { gui_state = SHOWING_MENU; } should_render = true; } break; } if (should_render) { should_render = false; rerender: if (width == 160 && height == 144) { memcpy(pixels, converted_background->pixels, sizeof(pixels)); } else { for (unsigned y = 0; y < 144; y++) { memcpy(pixels + x_offset + width * (y + y_offset), ((uint32_t *)converted_background->pixels) + 160 * y, 160 * 4); } } switch (gui_state) { case SHOWING_DROP_MESSAGE: draw_text_centered(pixels, width, height, 8 + y_offset, "Press ESC for menu", gui_palette_native[3], gui_palette_native[0], false); draw_text_centered(pixels, width, height, 116 + y_offset, "Drop a GB or GBC", gui_palette_native[3], gui_palette_native[0], false); draw_text_centered(pixels, width, height, 128 + y_offset, "file to play", gui_palette_native[3], gui_palette_native[0], false); break; case SHOWING_MENU: draw_text_centered(pixels, width, height, 8 + y_offset, "SameBoy", gui_palette_native[3], gui_palette_native[0], false); unsigned i = 0, y = 24; for (const struct menu_item *item = current_menu; item->string; item++, i++) { if (i == current_selection && !mouse_scroling) { if (i == 0) { if (y < scroll) { scroll = (y - 4) / 12 * 12; goto rerender; } } else { if (y < scroll + 24) { scroll = (y - 24) / 12 * 12; goto rerender; } } } if (i == current_selection && i == 0 && scroll != 0 && !mouse_scroling) { scroll = 0; goto rerender; } if (item->value_getter && !item->backwards_handler) { char line[25]; snprintf(line, sizeof(line), "%s%*s", item->string, 24 - (unsigned)strlen(item->string), item->value_getter(i)); draw_text_centered(pixels, width, height, y + y_offset, line, gui_palette_native[3], gui_palette_native[0], i == current_selection ? DECORATION_SELECTION : DECORATION_NONE); y += 12; } else { draw_text_centered(pixels, width, height, y + y_offset, item->string, gui_palette_native[3], gui_palette_native[0], i == current_selection && !item->value_getter ? DECORATION_SELECTION : DECORATION_NONE); y += 12; if (item->value_getter) { draw_text_centered(pixels, width, height, y + y_offset - 1, item->value_getter(i), gui_palette_native[3], gui_palette_native[0], i == current_selection ? DECORATION_ARROWS : DECORATION_NONE); y += 12; } } if (i == current_selection && !mouse_scroling) { if (y > scroll + 144) { scroll = (y - 144) / 12 * 12; if (scroll > menu_height - 144) { scroll = menu_height - 144; } goto rerender; } } } if (scrollbar_size) { unsigned scrollbar_offset = (140 - scrollbar_size) * scroll / (menu_height - 144); if (scrollbar_offset + scrollbar_size > 140) { scrollbar_offset = 140 - scrollbar_size; } for (unsigned y = 0; y < 140; y++) { uint32_t *pixel = pixels + x_offset + 156 + width * (y + y_offset + 2); if (y >= scrollbar_offset && y < scrollbar_offset + scrollbar_size) { pixel[0] = pixel[1]= gui_palette_native[2]; } else { pixel[0] = pixel[1]= gui_palette_native[1]; } } } break; case SHOWING_HELP: draw_text(pixels, width, height, 2 + x_offset, 2 + y_offset, help[current_help_page], gui_palette_native[3], gui_palette_native[0], false); break; case WAITING_FOR_KEY: draw_text_centered(pixels, width, height, 68 + y_offset, "Press a Key", gui_palette_native[3], gui_palette_native[0], DECORATION_NONE); break; case WAITING_FOR_JBUTTON: draw_text_centered(pixels, width, height, 68 + y_offset, joypad_configuration_progress != JOYPAD_BUTTONS_MAX ? "Press button for" : "Move the Analog Stick", gui_palette_native[3], gui_palette_native[0], DECORATION_NONE); draw_text_centered(pixels, width, height, 80 + y_offset, (const char *[]) { "Right", "Left", "Up", "Down", "A", "B", "Select", "Start", "Open Menu", "Turbo", "Rewind", "Slow-Motion", "", } [joypad_configuration_progress], gui_palette_native[3], gui_palette_native[0], DECORATION_NONE); draw_text_centered(pixels, width, height, 104 + y_offset, "Press Enter to skip", gui_palette_native[3], gui_palette_native[0], DECORATION_NONE); break; } render_texture(pixels, NULL); #ifdef _WIN32 /* Required for some Windows 10 machines, god knows why */ render_texture(pixels, NULL); #endif } } while (SDL_WaitEvent(&event)); }