SameBoy/gtk3/main.c

2370 lines
76 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#include "main.h"
#ifndef _WIN32
#define DEFAULT_AUDIO_SAMPLE_RATE 96000
#else
/* Windows (well, at least my VM) can't handle 96KHz sound well :( */
/* felsqualle says: For SDL 2.0.6+ using the WASAPI driver, the highest freq.
we can get is 48000. 96000 also works, but always has some faint crackling in
the audio, no matter how high or low I set the buffer length...
Not quite satisfied with that solution, because acc. to SDL2 docs,
96k + WASAPI *should* work. */
#define DEFAULT_AUDIO_SAMPLE_RATE 48000
#endif
/* Compatibility with older SDL versions */
#ifndef SDL_AUDIO_ALLOW_SAMPLES_CHANGE
#define SDL_AUDIO_ALLOW_SAMPLES_CHANGE 0
#endif
static SDL_GameController *controller = NULL;
static SDL_AudioSpec want_aspec, have_aspec;
static SDL_AudioDeviceID device_id;
static const GThread *main_thread;
static GtkApplication *main_application;
static GtkBuilder *builder;
static GtkGLArea *gl_area;
static GtkDrawingArea *fallback_canvas;
static GtkApplicationWindow *main_window;
static GtkBox *main_window_container;
static GtkWindow *preferences;
static GtkWindow *vram_viewer;
static GtkWindow *memory_viewer;
static GtkWindow *console;
static GtkWindow *printer;
static shader_t shader;
static GuiData gui_data = { { NULL }, NULL };
static GB_gameboy_t gb;
static uint32_t *image_buffers[3];
static unsigned char current_buffer;
static bool supports_gl;
static bool is_fullscreen;
static bool underclock_down = false, rewind_down = false, do_rewind = false, rewind_paused = false, turbo_down = false;
static double clock_mutliplier = 1.0;
static char *battery_save_path_ptr;
static Rect viewport = {0};
static Rect scrollRect = {0};
static bool vram_viewer_visible = false;
static bool vram_viewer_updating = false;
static gchar *vram_viewer_active_tab = "";
static gboolean vram_viewer_is_cgb = false;
static uint8_t vram_viewer_palette_data[16][0x40];
static bool border_mode_changed = false;
static volatile bool running = false;
static volatile bool stopping = false;
#define tileset_buffer_length 256 * 192 * 4
static uint32_t tileset_buffer[tileset_buffer_length] = {0};
static GMutex tileset_buffer_mutex;
#define tilemap_buffer_length 256 * 256 * 4
static uint32_t tilemap_buffer[tilemap_buffer_length] = {0};
static GMutex tilemap_buffer_mutex;
static GB_oam_info_t oamInfo[40];
static uint16_t oamCount;
static uint8_t oamHeight;
static uint8_t pressed_buttons;
static GtkTextBuffer *pending_console_output = NULL;
static gboolean in_sync_input = false;
static gchar *last_console_input = NULL;
static gboolean log_to_sidebar = false;
static gboolean should_clear_sidebar = false;
static GMutex debugger_input_mutex;
static GCond debugger_input_cond;
static GRecMutex console_output_lock;
static GPtrArray *debugger_input_queue;
static const GActionEntry file_entries[] = {
{ "open", activate_open, NULL, NULL, NULL },
{ "close", activate_close, NULL, NULL, NULL },
};
static const GActionEntry edit_entries[] = {
};
static const GActionEntry emulation_entries[] = {
{ "reset", activate_reset, NULL, NULL, NULL },
{ "pause", NULL, NULL, "false", on_pause_changed },
{ "save_state", NULL, NULL, NULL, NULL },
{ "load_state", NULL, NULL, NULL, NULL },
};
static const GActionEntry developer_entries[] = {
{ "show_console", activate_show_console, NULL, NULL, NULL },
{ "open_gtk_debugger", activate_open_gtk_debugger, NULL, NULL, NULL },
{ "open_memory_viewer", activate_open_memory_viewer, NULL, NULL, NULL },
{ "open_vram_viewer", activate_open_vram_viewer, NULL, NULL, NULL },
{ "toggle_developer_mode", NULL, NULL, "false", NULL },
{ "clear_console", activate_clear_console, NULL, NULL, NULL },
};
static const GActionEntry app_entries[] = {
{ "quit", activate_quit, NULL, NULL, NULL },
{ "about", activate_about, NULL, NULL, NULL },
{ "preferences", activate_preferences, NULL, NULL, NULL },
{ "toggle_mute", NULL, NULL, "false", on_mute_changed },
{ "change_model", NULL, "s", "@s 'CGB'", on_model_changed },
};
int main(int argc, char *argv[]) {
main_thread = g_thread_self();
// initialize GB_model_t to invalid value
gui_data.cli_options.model = -1;
gui_data.prev_model = -1;
// Create our GApplication and tell GTK that we are able to handle files
main_application = gtk_application_new(APP_ID, G_APPLICATION_NON_UNIQUE | G_APPLICATION_HANDLES_OPEN);
// Define our command line parameters
GOptionEntry entries[] = {
{ "version", 'v', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, NULL, "Show the application version", NULL },
{ "fullscreen", 'f', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, NULL, "Start in fullscreen mode", NULL },
{ "bootrom", 'b', G_OPTION_FLAG_NONE, G_OPTION_ARG_STRING, &gui_data.cli_options.boot_rom_path, "Path to the boot ROM to use", "<file path>" },
{ "model", 'm', G_OPTION_FLAG_NONE, G_OPTION_ARG_STRING, NULL, "Override the model type to emulate", "<model type>" },
{ "config", 'c', G_OPTION_FLAG_NONE, G_OPTION_ARG_STRING, &gui_data.cli_options.config_path, "Override the path of the configuration file", "<file path>" },
{ NULL }
};
// Setup our command line information
g_application_add_main_option_entries(G_APPLICATION(main_application), entries);
g_application_set_option_context_parameter_string(G_APPLICATION(main_application), "[FILE…]");
g_application_set_option_context_summary(G_APPLICATION(main_application), "SameBoy is an open source Game Boy (DMG) and Game Boy Color (CGB) emulator.");
// Add signal handlers
g_signal_connect(main_application, "handle-local-options", G_CALLBACK(handle_local_options), &gui_data);
g_signal_connect(main_application, "startup", G_CALLBACK(startup), &gui_data);
g_signal_connect(main_application, "activate", G_CALLBACK(activate), &gui_data);
g_signal_connect(main_application, "open", G_CALLBACK(open), &gui_data);
g_signal_connect(main_application, "shutdown", G_CALLBACK(shutdown), &gui_data);
// Start our GApplication main loop
int status = g_application_run(G_APPLICATION(main_application), argc, argv);
g_object_unref(main_application);
return status;
}
// This function gets called after the parsing of the commandline options has occurred.
static gint handle_local_options(GApplication *app, GVariantDict *options, gpointer gui_data_gptr) {
GuiData *gui_data = gui_data_gptr;
guint32 count;
if (g_variant_dict_lookup(options, "version", "b", &count)) {
g_message("SameBoy v" xstr(VERSION));
return EXIT_SUCCESS;
}
if (g_variant_dict_lookup(options, "fullscreen", "b", &count)) {
gui_data->cli_options.fullscreen = true;
}
// Handle model override
GVariant *model_name_var = g_variant_dict_lookup_value(options, "model", G_VARIANT_TYPE_STRING);
if (model_name_var != NULL) {
const gchar *model_name = g_variant_get_string(model_name_var, NULL);
// TODO: Synchronize with GB_model_t (Core/gb.h)
if (g_str_has_prefix(model_name, "DMG")) {
gui_data->cli_options.prefix = "DMG";
if (g_str_has_suffix(model_name, "-B") || g_strcmp0(model_name, "DMG") == 0) {
gui_data->cli_options.model = GB_MODEL_DMG_B;
}
else {
gui_data->cli_options.model = GB_MODEL_DMG_B;
g_warning("Unsupported revision: %s\nFalling back to DMG-B", model_name);
}
}
else if (g_str_has_prefix(model_name, "SGB")) {
gui_data->cli_options.prefix = "SGB";
if (g_str_has_suffix(model_name, "-NTSC") || g_strcmp0(model_name, "SGB") == 0) {
gui_data->cli_options.model = GB_MODEL_SGB;
}
else if (g_str_has_suffix(model_name, "-PAL")) {
gui_data->cli_options.model = GB_MODEL_SGB | GB_MODEL_PAL_BIT;
}
else if (g_str_has_suffix(model_name, "2")) {
gui_data->cli_options.model = GB_MODEL_SGB2;
}
else {
gui_data->cli_options.model = GB_MODEL_SGB2;
g_warning("Unsupported revision: %s\nFalling back to SGB2", model_name);
}
}
else if (g_str_has_prefix(model_name, "CGB")) {
gui_data->cli_options.prefix = "CGB";
if (g_str_has_suffix(model_name, "-C")) {
gui_data->cli_options.model = GB_MODEL_CGB_C;
}
else if (g_str_has_suffix(model_name, "-E") || g_strcmp0(model_name, "CGB") == 0) {
gui_data->cli_options.model = GB_MODEL_CGB_E;
}
else {
gui_data->cli_options.model = GB_MODEL_CGB_E;
g_warning("Unsupported revision: %s\nFalling back to CGB-E", model_name);
}
}
else if (g_str_has_prefix(model_name, "AGB")) {
gui_data->cli_options.prefix = "AGB";
gui_data->cli_options.model = GB_MODEL_AGB;
}
else {
gui_data->cli_options.prefix = NULL;
g_warning("Unknown model: %s", model_name);
exit(EXIT_FAILURE);
}
}
return -1;
}
// Workaround to figure out if we have proper OpenGL support.
// Otherwise the application would crash after our GtkGlArea is realized
// and the context it uses is a legacy OpenGL 1.4 context because
// GTK3 calls OpenGL 2.0+ functions on it.
gboolean test_gl_support(void) {
gboolean result = false;
GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
g_signal_connect(window, "realize", G_CALLBACK(gl_check_realize), &result);
gtk_widget_realize(window);
gtk_widget_destroy(window);
window = NULL;
return result;
}
// The main function for the OpenGL version check workaround
void gl_check_realize(GtkWidget *w, gpointer user_data_gptr) {
gboolean *result = (gboolean *) user_data_gptr;
GError *error = NULL;
GdkWindow *gdk_window = gtk_widget_get_window(w);
GdkGLContext *context = gdk_window_create_gl_context(gdk_window, &error);
if (error != NULL) {
g_warning("Failed to create context: %s", error->message);
g_error_free(error);
*result = false;
}
else {
gdk_gl_context_make_current(context);
int version = epoxy_gl_version();
g_object_run_dispose(G_OBJECT(context));
g_object_unref(context);
context = NULL;
gdk_gl_context_clear_current();
g_debug("OpenGL version: %d", version);
*result = version >= 32;
}
}
static gboolean init_controllers() {
if (SDL_InitSubSystem(SDL_INIT_GAMECONTROLLER) < 0) {
g_warning("Failed to initialize game controller support: %s", SDL_GetError());
return false;
}
SDL_QuitSubSystem(SDL_INIT_EVENTS);
SDL_GameControllerEventState(SDL_IGNORE);
GError *error = NULL;
GBytes *db_f = g_resources_lookup_data(RESOURCE_PREFIX "gamecontrollerdb.txt", G_RESOURCE_LOOKUP_FLAGS_NONE, &error);
if (db_f != NULL) {
gsize db_data_size = 0;
const guchar *db_data = g_bytes_get_data(db_f, &db_data_size);
const gint val = SDL_GameControllerAddMappingsFromRW(SDL_RWFromMem((void *)db_data, db_data_size), 1);
if (val < 0) {
g_warning("Failed to load controller mappings: %s", SDL_GetError());
}
g_bytes_unref(db_f);
}
if (error != NULL) g_clear_error(&error);
// Open the first available controller
for (int i = 0; i < SDL_NumJoysticks(); ++i) {
if (SDL_IsGameController(i)) {
controller = SDL_GameControllerOpen(i);
if (controller) {
break;
}
else {
g_warning("Could not open gamecontroller %i: %s", i, SDL_GetError());
}
}
}
return true;
}
static gboolean init_audio() {
bool audio_playing = SDL_GetAudioDeviceStatus(device_id) == SDL_AUDIO_PLAYING;
SDL_PauseAudioDevice(device_id, 1);
SDL_ClearQueuedAudio(device_id);
SDL_QuitSubSystem(SDL_INIT_AUDIO);
if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
g_warning("Failed to initialize audio: %s", SDL_GetError());
return false;
}
memset(&want_aspec, 0, sizeof(want_aspec));
want_aspec.freq = gui_data.sample_rate;
want_aspec.format = AUDIO_S16SYS;
want_aspec.channels = 2;
want_aspec.samples = 512;
SDL_version _sdl_version;
SDL_GetVersion(&_sdl_version);
unsigned sdl_version = _sdl_version.major * 1000 + _sdl_version.minor * 100 + _sdl_version.patch;
#ifndef _WIN32
/* SDL 2.0.5 on macOS and Linux introduced a bug where certain combinations of buffer lengths and frequencies
fail to produce audio correctly. */
if (sdl_version >= 2005) {
want_aspec.samples = 2048;
}
#else
if (sdl_version < 2006) {
/* Since WASAPI audio was introduced in SDL 2.0.6, we have to lower the audio frequency
to 44100 because otherwise we would get garbled audio output.*/
want_aspec.freq = 44100;
}
#endif
device_id = SDL_OpenAudioDevice(0, 0, &want_aspec, &have_aspec, SDL_AUDIO_ALLOW_FREQUENCY_CHANGE | SDL_AUDIO_ALLOW_SAMPLES_CHANGE);
g_debug("Requested Sample Rate: %d Hz\nUsed Sample Rate: %d Hz", want_aspec.freq, have_aspec.freq);
SDL_PauseAudioDevice(device_id, audio_playing? 0 : 1);
GB_set_sample_rate(&gb, have_aspec.freq);
return true;
}
static GB_model_t get_model() {
if (gui_data.cli_options.model != -1) {
return gui_data.cli_options.model;
}
GAction *action = g_action_map_lookup_action(G_ACTION_MAP(main_application), "change_model");
GVariant *value = g_action_get_state(action);
const gchar *family = g_variant_get_string(value, NULL);
if (g_strcmp0(family, "DMG") == 0) {
return get_dmg_model();
}
else if (g_strcmp0(family, "AGB") == 0) {
return GB_MODEL_AGB;
}
else if (g_strcmp0(family, "SGB") == 0) {
return get_sgb_model();
}
return get_cgb_model();
}
static void gb_audio_callback(GB_gameboy_t *gb, GB_sample_t *sample) {
if (turbo_down) {
static unsigned skip = 0;
skip++;
if (skip == have_aspec.freq / 8) {
skip = 0;
}
if (skip > have_aspec.freq / 16) {
return;
}
}
if (SDL_GetQueuedAudioSize(device_id) / sizeof(*sample) > have_aspec.freq / 4) {
return;
}
SDL_QueueAudio(device_id, sample, sizeof(*sample));
}
// Console TODO:
// TODO: clear sidebar when switching to async mode
// TODO: Command history (up / down arrow in input)
// TODO: reverse search of commands
// TODO: search in output
static char *sync_console_input(GB_gameboy_t *gb) {
update_debugger_sidebar(gb);
console_log(gb, "> ", 0);
in_sync_input = true;
g_mutex_lock(&debugger_input_mutex);
g_cond_wait(&debugger_input_cond, &debugger_input_mutex);
gchar *input = NULL;
const gchar *_input = g_ptr_array_index(debugger_input_queue, 0);
input = g_strdup(_input);
gpointer ptr = g_ptr_array_remove_index(debugger_input_queue, 0);
if (ptr) g_free(ptr);
g_mutex_unlock(&debugger_input_mutex);
in_sync_input = false;
return input;
}
static void clear_sidebar() {
GtkTextView *sidebar_output = builder_get(GTK_TEXT_VIEW, "console_sidebar_output");
GtkTextBuffer *sidebar_output_text_buf = gtk_text_view_get_buffer(sidebar_output);
gtk_text_buffer_set_text(sidebar_output_text_buf, "", -1);
}
static char *async_console_input(GB_gameboy_t *gb) {
// TODO: This is rather ugly
g_idle_add((GSourceFunc) clear_sidebar, NULL);
if (debugger_input_queue->len == 0) return NULL;
g_mutex_lock(&debugger_input_mutex);
gchar *input = NULL;
const gchar *_input = g_ptr_array_index(debugger_input_queue, 0);
if (_input) {
input = g_strdup(_input);
gpointer ptr = g_ptr_array_remove_index(debugger_input_queue, 0);
if (ptr) g_free(ptr);
}
g_mutex_unlock(&debugger_input_mutex);
return input;
}
static void update_debugger_sidebar(GB_gameboy_t *gb) {
if (!GB_debugger_is_stopped(gb)) {
return;
}
if (main_thread != g_thread_self()) {
g_idle_add((GSourceFunc) update_debugger_sidebar, gb);
return;
}
g_rec_mutex_lock(&console_output_lock);
should_clear_sidebar = true;
append_pending_output();
log_to_sidebar = true;
g_rec_mutex_unlock(&console_output_lock);
GtkTextView *sidebar_input = builder_get(GTK_TEXT_VIEW, "console_sidebar_input");
GtkTextBuffer *sidebar_input_text_buf = gtk_text_view_get_buffer(sidebar_input);
gint line_count = gtk_text_buffer_get_line_count(sidebar_input_text_buf);
for (unsigned line = 0; line < line_count; ++line) {
GtkTextIter start_iter;
GtkTextIter end_iter;
gunichar ch;
gtk_text_buffer_get_iter_at_line(sidebar_input_text_buf, &start_iter, line);
end_iter = start_iter;
do {
ch = gtk_text_iter_get_char(&end_iter);
if (!gtk_text_iter_forward_char(&end_iter)) {
break;
}
}
while (ch != '\n');
gchar *cmd = gtk_text_buffer_get_text(sidebar_input_text_buf, &start_iter, &end_iter, false);
g_strchug(cmd); // trim leading whitespace
g_strchomp(cmd); // trim trailing whitespace
if (g_strcmp0("", cmd) != 0) {
char *duped = g_strdup(cmd);
GB_attributed_log(gb, GB_LOG_BOLD, "%s:\n", duped);
GB_debugger_execute_command(gb, duped);
GB_log(gb, "\n");
g_free(duped);
}
g_free(cmd);
}
g_rec_mutex_lock(&console_output_lock);
append_pending_output();
log_to_sidebar = false;
g_rec_mutex_unlock(&console_output_lock);
}
static gboolean scroll_to_bottom(GtkTextView *textview, GtkTextMark *mark) {
GtkTextBuffer *buffer = gtk_text_view_get_buffer(textview);
GtkTextIter iter;
gtk_text_buffer_get_end_iter(buffer, &iter);
gtk_text_iter_set_line_offset(&iter, 0);
gtk_text_buffer_move_mark(buffer, mark, &iter);
gtk_text_view_scroll_to_mark(textview, mark, 0.0, true, 0.0, 0.10);
gtk_text_buffer_delete_mark(buffer, mark);
return true;
}
static void append_pending_output(void) {
g_rec_mutex_lock(&console_output_lock);
if (should_clear_sidebar) {
clear_sidebar();
should_clear_sidebar = false;
}
if (gtk_text_buffer_get_char_count(pending_console_output) > 0) {
GtkTextView *text_view = builder_get(GTK_TEXT_VIEW, log_to_sidebar? "console_sidebar_output" : "console_screen");
GtkTextBuffer *text_buf = gtk_text_view_get_buffer(text_view);
GtkTextIter start;
GtkTextIter end;
gtk_text_buffer_get_start_iter(pending_console_output, &start);
gtk_text_buffer_get_end_iter(pending_console_output, &end);
GtkTextIter iter;
gtk_text_buffer_get_end_iter(text_buf, &iter);
gtk_text_buffer_insert_range(text_buf, &iter, &start, &end);
scroll_to_bottom(text_view, gtk_text_buffer_create_mark(text_buf, NULL, &iter, true));
gtk_text_buffer_set_text(pending_console_output, "", -1);
}
g_rec_mutex_unlock(&console_output_lock);
}
static void console_log(GB_gameboy_t *gb, const char *string, GB_log_attributes attributes) {
g_rec_mutex_lock(&console_output_lock);
if (string != NULL && !g_str_equal("", string)) {
GtkTextIter iter;
GtkTextIter start;
// Append attributed text to "pending_console_output" GtkTextBuffer
gtk_text_buffer_get_end_iter(pending_console_output, &iter);
GtkTextMark *start_mark = gtk_text_buffer_create_mark(pending_console_output, NULL, &iter, true);
gtk_text_buffer_insert(pending_console_output, &iter, g_strdup(string), -1);
gtk_text_buffer_get_iter_at_mark(pending_console_output, &start, start_mark);
if (attributes & GB_LOG_BOLD) {
gtk_text_buffer_apply_tag_by_name(pending_console_output, "bold", &start, &iter);
}
if (attributes & GB_LOG_DASHED_UNDERLINE) {
gtk_text_buffer_apply_tag_by_name(pending_console_output, "dashed_underline", &start, &iter);
}
if (attributes & GB_LOG_UNDERLINE) {
gtk_text_buffer_apply_tag_by_name(pending_console_output, "underline", &start, &iter);
}
gtk_text_buffer_delete_mark(pending_console_output, start_mark);
g_idle_add((GSourceFunc) append_pending_output, NULL);
}
g_rec_mutex_unlock(&console_output_lock);
}
// Returns a `GApplication`s `GMenuModel` by ID
// GApplication menus are loaded from `gtk/menus.ui`, `gtk/menus-traditional.ui` and `gtk/menus-common.ui`.
static GMenuModel *get_menu_model(GApplication *app, const char *id) {
GMenu *menu;
menu = gtk_application_get_menu_by_id(GTK_APPLICATION(app), id);
return menu ? G_MENU_MODEL(g_object_ref_sink(menu)) : NULL;
}
// Create a GtkDrawingArea as a fallback in case we cant use OpenGL
static void create_fallback_canvas(void) {
fallback_canvas = GTK_DRAWING_AREA(gtk_drawing_area_new());
g_signal_connect(fallback_canvas, "draw", G_CALLBACK(on_draw_fallback), NULL);
g_signal_connect(fallback_canvas, "size-allocate", G_CALLBACK(resize), NULL);
gtk_box_pack_end(GTK_BOX(main_window_container), GTK_WIDGET(fallback_canvas), true, true, 0);
}
// Create our applications menu.
//
// This function tries to stick to the desktop environments conventions.
// For the GNOME Shell it uses a hamburger menu, otherwise it either lets
// the desktop environment shell handle the menu if it signals support for it
// or uses a standard menubar inside the window.
static void setup_menu(GApplication *app) {
GMenuModel *menubar_model = get_menu_model(app, "menubar");
enum menubar_type_t menubar_type = get_show_menubar();
// Try to use a sane default
if (menubar_type == MENUBAR_AUTO) {
GtkSettings *settings = gtk_settings_get_default();
gboolean show_in_shell;
g_object_get(settings, "gtk-shell-shows-menubar", &show_in_shell, NULL);
const gchar *xdg_current_desktop = g_getenv("XDG_CURRENT_DESKTOP");
const gchar *gdm_session = g_getenv("GDMSESSION");
const gchar *desktop_session = g_getenv("DESKTOP_SESSION");
gchar *desktop = (gchar *)xdg_current_desktop;
if (desktop == NULL || g_str_equal(desktop, "")) desktop = (gchar *)gdm_session;
if (desktop == NULL || g_str_equal(desktop, "")) desktop = (gchar *)desktop_session;
g_debug("XDG_CURRENT_DESKTOP: %s\nGDMSESSION: %s\nDESKTOP_SESSION: %s\nChosen value: %s\nShow menu in shell: %d", xdg_current_desktop, gdm_session, desktop_session, desktop, show_in_shell);
if (desktop != NULL && show_in_shell) {
menubar_type = MENUBAR_SHOW_IN_SHELL;
}
else if (desktop != NULL && g_str_match_string("GNOME", desktop, false)) {
if (g_str_match_string("GNOME-Flashback", desktop, false) || g_str_match_string("GNOME-Classic", desktop, false)) {
menubar_type = MENUBAR_SHOW_IN_WINDOW;
}
else if (gdm_session != NULL && (g_str_match_string("gnome-classic", gdm_session, false) || g_str_match_string("gnome-flashback", gdm_session, false))) {
menubar_type = MENUBAR_SHOW_IN_WINDOW;
}
else {
menubar_type = MENUBAR_SHOW_HAMBURGER;
}
}
else {
menubar_type = MENUBAR_SHOW_IN_WINDOW;
}
}
switch (menubar_type) {
case MENUBAR_AUTO:
g_warning("Unreachable");
break;
case MENUBAR_SHOW_IN_SHELL:
g_debug("Showing menu in the shell");
gtk_application_set_menubar(GTK_APPLICATION(app), menubar_model);
break;
case MENUBAR_SHOW_IN_WINDOW: {
g_debug("Showing menu in the window");
GtkMenuBar *menubar = GTK_MENU_BAR(gtk_menu_bar_new_from_model(menubar_model));
gtk_box_pack_start(GTK_BOX(main_window_container), GTK_WIDGET(menubar), false, false, 0);
break;
}
case MENUBAR_SHOW_HAMBURGER: {
g_debug("Showing hamburger");
// Attach a custom title bar
GtkWidget *titlebar = builder_get(GTK_WIDGET, "main_header_bar");
gtk_header_bar_set_title(GTK_HEADER_BAR(titlebar), gtk_window_get_title(GTK_WINDOW(main_window)));
gtk_window_set_titlebar(GTK_WINDOW(main_window), titlebar);
// Disable menubar
gtk_application_set_menubar(GTK_APPLICATION(app), NULL);
// Hook menubar up to the hamburger button
GtkMenuButton *hamburger_button = GTK_MENU_BUTTON(get_object("hamburger_button"));
gtk_menu_button_set_menu_model(hamburger_button, menubar_model);
break;
}
}
}
// Recursively goes through all children of the given container and sets
// our `is_separator` function to all children of type`GtkComboBox`
static void set_combo_box_row_separator_func(GtkContainer *container) {
GList *children = gtk_container_get_children(container);
for (GList *l = children; l; l = l->next) {
if (GTK_IS_COMBO_BOX(l->data)) {
gtk_combo_box_set_row_separator_func(GTK_COMBO_BOX(l->data), is_separator, NULL, NULL);
}
if (GTK_IS_CONTAINER(l->data)) {
set_combo_box_row_separator_func(GTK_CONTAINER(l->data));
}
}
g_list_free(children);
}
// Determines if a ComboBox entry should be converted into a separator.
// Each element with a text value of `<separator>` will be converted into a separator element.
static gboolean is_separator(GtkTreeModel *model, GtkTreeIter *iter, gpointer data) {
gchar *text = NULL;
gtk_tree_model_get(model, iter, 0, &text, -1);
gboolean result = g_strcmp0("<separator>", text) == 0;
g_free(text);
return result;
}
// Determines how many frame buffers to use
static unsigned char number_of_buffers(void) {
if (fallback_canvas) return 2;
bool should_blend = get_frame_blending_mode() != GB_FRAME_BLENDING_MODE_DISABLED;
return should_blend? 3 : 2;
}
// Returns the buffer that should be used by the Core to render a new frame to
static uint32_t *get_pixels(void) {
return image_buffers[(current_buffer + 1) % number_of_buffers()];
}
// Returns the current finished frame
static uint32_t *get_current_buffer(void) {
return image_buffers[current_buffer];
}
// Returns the previous finished frame
static uint32_t *get_previous_buffer(void) {
return image_buffers[(current_buffer + 2) % number_of_buffers()];
}
// Cycles the buffers
static void flip(void) {
current_buffer = (current_buffer + 1) % number_of_buffers();
}
static void quit_interrupt(int ignored) {
quit();
}
// WHY DO WE NEED SUCH AN UGLY METHOD, GTK?!
static void action_entries_set_enabled(const GActionEntry *entries, unsigned n_entries, bool value) {
// Assumes null-terminated if n_entries == -1
for (unsigned i = 0; n_entries == -1 ? entries[i].name != NULL : i < n_entries; i++) {
const GActionEntry *entry = &entries[i];
if (entry->name == NULL) continue;
action_set_enabled(main_application, entry->name, value);
}
}
static void create_action_groups(GApplication *app) {
g_action_map_add_action_entries(G_ACTION_MAP(app), emulation_entries, G_N_ELEMENTS(emulation_entries), NULL);
g_action_map_add_action_entries(G_ACTION_MAP(app), developer_entries, G_N_ELEMENTS(developer_entries), NULL);
g_action_map_add_action_entries(G_ACTION_MAP(app), app_entries, G_N_ELEMENTS(app_entries), NULL);
g_action_map_add_action_entries(G_ACTION_MAP(app), file_entries, G_N_ELEMENTS(file_entries), NULL);
g_action_map_add_action_entries(G_ACTION_MAP(app), edit_entries, G_N_ELEMENTS(edit_entries), NULL);
action_set_enabled(app, "close", false);
action_entries_set_enabled(emulation_entries, G_N_ELEMENTS(emulation_entries), false);
}
// This functions gets called immediately after registration of the GApplication
static void startup(GApplication *app, gpointer gui_data_gptr) {
GuiData *gui_data = gui_data_gptr;
signal(SIGINT, quit_interrupt);
// Very ugly workaround for GtkGlArea!
// When a GtkGlArea is realized and it creates a legacy GL 1.4 context
// it tries to use GL 2.0 functions to render the window which leads to the application crashing.
// So we initialize GTK, create a dummy GtkWindow object, attach a `realize` callback and
// in this callback create a GdkGLContext on this window. But instead of running the GTK main loop
// we just realize and destroy the dummy window and compare the contexts version in the realize callback.
supports_gl = test_gl_support();
g_debug("OpenGL supported: %s", supports_gl? "Yes" : "No");
builder = gtk_builder_new_from_resource(RESOURCE_PREFIX "ui/window.ui");
gtk_builder_connect_signals(builder, NULL);
create_action_groups(app);
if (gui_data->cli_options.prefix != NULL) {
GAction *action = g_action_map_lookup_action(G_ACTION_MAP(main_application), "change_model");
g_action_change_state(action, g_variant_new_string(gui_data->cli_options.prefix));
}
#if NDEBUG
// Disable when not compiled in debug mode
action_set_enabled(app, "open_gtk_debugger", false);
// Remove the menubar override
gtk_widget_destroy(builder_get(GTK_WIDGET, "menubar_override_selector_label"));
gtk_widget_destroy(builder_get(GTK_WIDGET, "menubar_override_selector"));
#endif
preferences = GTK_WINDOW(get_object("preferences"));
g_signal_connect(preferences, "realize", G_CALLBACK(on_preferences_realize), (gpointer) builder);
init_settings(gui_data->cli_options.config_path, preferences);
vram_viewer = GTK_WINDOW(get_object("vram_viewer"));
memory_viewer = GTK_WINDOW(get_object("memory_viewer"));
console = GTK_WINDOW(get_object("console"));
printer = GTK_WINDOW(get_object("printer"));
if (config.sample_rate == -1) {
gui_data->sample_rate = DEFAULT_AUDIO_SAMPLE_RATE;
}
else {
gui_data->sample_rate = config.sample_rate;
}
// setup main window
main_window = GTK_APPLICATION_WINDOW(gtk_application_window_new(GTK_APPLICATION(app)));
main_window_container = GTK_BOX(gtk_box_new(GTK_ORIENTATION_VERTICAL, 0));
gtk_window_set_title(GTK_WINDOW(main_window), "SameBoy");
gtk_application_window_set_show_menubar(main_window, false);
gtk_container_add(GTK_CONTAINER(main_window), GTK_WIDGET(main_window_container));
setup_menu(app);
// Insert separators into `GtkComboBox`es
set_combo_box_row_separator_func(GTK_CONTAINER(preferences));
set_combo_box_row_separator_func(GTK_CONTAINER(vram_viewer));
set_combo_box_row_separator_func(GTK_CONTAINER(memory_viewer));
// Define a set of window icons
GList *icon_list = NULL;
static char* icons[] = {
RESOURCE_PREFIX "logo_256.png",
RESOURCE_PREFIX "logo_128.png",
RESOURCE_PREFIX "logo_64.png",
RESOURCE_PREFIX "logo_48.png",
RESOURCE_PREFIX "logo_32.png",
RESOURCE_PREFIX "logo_16.png"
};
// Create list of GdkPixbufs
for (int i = 0; i < (sizeof(icons) / sizeof(const char*)); ++i) {
GdkPixbuf *icon = gdk_pixbuf_new_from_resource(icons[i], NULL);
if (!icon) continue;
icon_list = g_list_prepend(icon_list, icon);
}
// Let GTK choose the proper icon
gtk_window_set_icon_list(GTK_WINDOW(main_window), icon_list);
// Add missing information to the about dialog
GtkAboutDialog *about_dialog = GTK_ABOUT_DIALOG(get_object("about_dialog"));
gtk_about_dialog_set_logo(about_dialog, gdk_pixbuf_new_from_resource(icons[2], NULL)); // reuse the 64x64 icon
gtk_about_dialog_set_version(about_dialog, "v" xstr(VERSION));
g_list_free_full(icon_list, g_object_unref);
}
static void connect_signal_handlers(GApplication *app) {
// Connect signal handlers
gtk_widget_add_events(GTK_WIDGET(main_window), GDK_KEY_PRESS_MASK);
gtk_widget_add_events(GTK_WIDGET(main_window), GDK_KEY_RELEASE_MASK);
g_signal_connect(main_window, "destroy", G_CALLBACK(on_quit), app);
g_signal_connect(main_window, "key_press_event", G_CALLBACK(on_key_press), NULL);
g_signal_connect(main_window, "key_release_event", G_CALLBACK(on_key_press), NULL);
g_signal_connect(main_window, "window-state-event", G_CALLBACK(on_window_state_change), NULL);
g_signal_connect(vram_viewer, "realize", G_CALLBACK(on_vram_viewer_realize), NULL);
g_signal_connect(vram_viewer, "unrealize", G_CALLBACK(on_vram_viewer_unrealize), NULL);
// Just hide our sub-windows when closing them
g_signal_connect(preferences, "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL);
g_signal_connect(vram_viewer, "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL);
g_signal_connect(memory_viewer, "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL);
g_signal_connect(console, "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL);
g_signal_connect(printer, "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL);
g_signal_connect(get_object("vram_viewer_tileset_canvas"), "draw", G_CALLBACK(on_draw_vram_viewer_tileset), NULL);
g_signal_connect(get_object("vram_viewer_tilemap_canvas"), "draw", G_CALLBACK(on_draw_vram_viewer_tilemap), NULL);
gtk_widget_add_events(builder_get(GTK_WIDGET, "vram_viewer_tileset_canvas"), GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK);
gtk_widget_add_events(builder_get(GTK_WIDGET, "vram_viewer_tilemap_canvas"), GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK);
g_signal_connect(get_object("vram_viewer_tileset_canvas"), "motion_notify_event", G_CALLBACK(on_motion_vram_viewer_tileset), NULL);
g_signal_connect(get_object("vram_viewer_tilemap_canvas"), "motion_notify_event", G_CALLBACK(on_motion_vram_viewer_tilemap), NULL);
g_signal_connect(get_object("vram_viewer_stack"), "notify::visible-child", G_CALLBACK(on_vram_tab_change), NULL);
}
static void create_canvas() {
// create our renderer area
if (supports_gl) {
gl_area = GTK_GL_AREA(gtk_gl_area_new());
gtk_gl_area_set_required_version(gl_area, 3, 2);
gtk_gl_area_set_auto_render(gl_area, false);
gtk_gl_area_set_has_alpha(gl_area, false);
gtk_gl_area_set_has_depth_buffer(gl_area, false);
gtk_gl_area_set_has_stencil_buffer(gl_area, false);
g_signal_connect(gl_area, "realize", G_CALLBACK(gl_init), NULL);
gtk_box_pack_end(GTK_BOX(main_window_container), GTK_WIDGET(gl_area), true, true, 0);
}
else {
create_fallback_canvas();
}
GdkScreen *screen = gdk_screen_get_default();
GtkCssProvider *provider = gtk_css_provider_new();
gtk_css_provider_load_from_resource(provider, RESOURCE_PREFIX "css/main.css");
gtk_style_context_add_provider_for_screen(screen, GTK_STYLE_PROVIDER(provider), GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
}
static void setup_console() {
GtkTextView *text_view = builder_get(GTK_TEXT_VIEW, "console_screen");
GtkTextBuffer *text_buf = gtk_text_view_get_buffer(text_view);
gtk_text_view_set_buffer(
builder_get(GTK_TEXT_VIEW, "console_sidebar_output"),
gtk_text_buffer_new(gtk_text_buffer_get_tag_table(text_buf))
);
gtk_text_buffer_create_tag(text_buf, "bold", "weight", PANGO_WEIGHT_BOLD, NULL);
gtk_text_buffer_create_tag(text_buf, "underline", "underline", PANGO_UNDERLINE_SINGLE, "underline-set", true, NULL);
gtk_text_buffer_create_tag(text_buf, "dashed_underline", "underline", PANGO_UNDERLINE_DOUBLE, "underline-set", true, NULL);
g_mutex_init(&debugger_input_mutex);
g_cond_init(&debugger_input_cond);
g_rec_mutex_init(&console_output_lock);
if (!debugger_input_queue) {
debugger_input_queue = g_ptr_array_sized_new(4);
}
if (!pending_console_output) {
pending_console_output = gtk_text_buffer_new(gtk_text_buffer_get_tag_table(text_buf));
}
}
// This function gets called when the GApplication gets activated, i.e. it is ready to show widgets.
static void activate(GApplication *app, gpointer gui_data_gptr) {
GuiData *gui_data = gui_data_gptr;
// initialize SameBoy core
init(gui_data);
init_audio();
init_controllers();
connect_signal_handlers(app);
create_canvas();
setup_console();
if (gui_data->cli_options.fullscreen) {
gtk_window_fullscreen(GTK_WINDOW(main_window));
}
gtk_application_add_window(GTK_APPLICATION(app), GTK_WINDOW(main_window));
gtk_widget_show_all(GTK_WIDGET(main_window));
// Start the emulation thread
run(gui_data);
}
// This function gets called when the application is closed.
static void shutdown(GApplication *app, GFile **files, gint n_files, const gchar *hint, gpointer gui_data_gptr) {
g_debug("SHUTDOWN");
stop(&gui_data);
while (stopping);
g_object_unref(builder);
save_settings();
free_settings();
SDL_Quit();
if (image_buffers[0]) g_free(image_buffers[0]);
if (image_buffers[1]) g_free(image_buffers[1]);
if (image_buffers[2]) g_free(image_buffers[2]);
free_shader(&shader);
free_master_shader();
GB_free(&gb);
}
// This function gets called when there are files to open.
// Note: When `open` gets called `activate` wont fire unless we call it ourselves.
static void open(GApplication *app, GFile **files, gint n_files, const gchar *hint, gpointer gui_data_gptr) {
GuiData *gui_data = gui_data_gptr;
if (n_files > 1) {
g_warning("More than one file specified");
exit(EXIT_FAILURE);
}
gui_data->file = g_file_dup(files[0]);
// We have handled the files, now activate the application
activate(app, gui_data_gptr);
}
// Tell our application to quit.
// After this functions has been called the `shutdown` signal will be issued.
//
// TODO: Make sure we have a way to quit our emulation loop before `shutdown` gets called
static void quit() {
stop(&gui_data);
// Quit our application properly.
// This fires the “shutdown” signal.
g_application_quit(G_APPLICATION(main_application));
}
static gboolean on_key_press(GtkWidget *w, GdkEventKey *event, gpointer data) {
uint8_t mask;
// TODO: Allow control remapping in the GUI
switch (event->keyval) {
case GDK_KEY_w: mask = BUTTON_MASK_UP; break;
case GDK_KEY_a: mask = BUTTON_MASK_LEFT; break;
case GDK_KEY_s: mask = BUTTON_MASK_DOWN; break;
case GDK_KEY_d: mask = BUTTON_MASK_RIGHT; break;
case GDK_KEY_g: mask = BUTTON_MASK_SELECT; break;
case GDK_KEY_h: mask = BUTTON_MASK_START; break;
case GDK_KEY_k: mask = BUTTON_MASK_B; break;
case GDK_KEY_l: mask = BUTTON_MASK_A; break;
case GDK_KEY_Tab: {
rewind_down = event->type == GDK_KEY_PRESS;
GB_set_turbo_mode(&gb, turbo_down, turbo_down && rewind_down);
if (event->type == GDK_KEY_RELEASE) {
rewind_paused = false;
}
break; }
case GDK_KEY_space: {
turbo_down = event->type == GDK_KEY_PRESS;
SDL_ClearQueuedAudio(device_id);
GB_set_turbo_mode(&gb, turbo_down, turbo_down && rewind_down);
break; }
case GDK_KEY_dead_acute: // fall through
case GDK_KEY_acute: // fall through
case GDK_KEY_apostrophe:
underclock_down = event->type == GDK_KEY_PRESS;
break;
case GDK_KEY_F11: {
if (event->type == GDK_KEY_RELEASE) {
if (is_fullscreen) {
gtk_window_unfullscreen(GTK_WINDOW(main_window));
}
else {
gtk_window_fullscreen(GTK_WINDOW(main_window));
}
}
break; }
}
if (event->type == GDK_KEY_PRESS) {
pressed_buttons |= mask;
}
else if (event->type == GDK_KEY_RELEASE) {
pressed_buttons &= ~mask;
}
return false;
}
static void on_window_state_change(GtkWidget *w, GdkEventWindowState *event, gpointer data) {
is_fullscreen = event->new_window_state & GDK_WINDOW_STATE_FULLSCREEN;
}
// app.about GAction
// Opens the about dialog
static void activate_about(GSimpleAction *action, GVariant *parameter, gpointer app) {
GObject *dialog = get_object("about_dialog");
gtk_dialog_run(GTK_DIALOG(dialog));
gtk_widget_hide(GTK_WIDGET(dialog));
}
// app.show_console GAction
// Opens the console
static void activate_show_console(GSimpleAction *action, GVariant *parameter, gpointer app) {
if (debugger_input_queue) {
while (debugger_input_queue->len) {
g_ptr_array_remove_index_fast(debugger_input_queue, debugger_input_queue->len - 1);
}
}
gtk_widget_show_all(builder_get(GTK_WIDGET, "console"));
}
// app.open_gtk_debugger GAction
// Opens the GTK debugger
static void activate_open_gtk_debugger(GSimpleAction *action, GVariant *parameter, gpointer app) {
gtk_window_set_interactive_debugging(true);
}
// app.open_memory_viewer GAction
// Opens the memory viewer window
static void activate_open_memory_viewer(GSimpleAction *action, GVariant *parameter, gpointer app) {
gtk_widget_show_all(GTK_WIDGET(memory_viewer));
}
// app.open_vram_viewer GAction
// Opens the VRAM viewer window
static void activate_open_vram_viewer(GSimpleAction *action, GVariant *parameter, gpointer app) {
gtk_widget_show_all(GTK_WIDGET(vram_viewer));
}
// app.open GAction
// Opens a ROM file
static void activate_open(GSimpleAction *action, GVariant *parameter, gpointer app) {
stop(&gui_data);
GtkFileChooserNative *native = gtk_file_chooser_native_new("Open File", GTK_WINDOW(main_window), GTK_FILE_CHOOSER_ACTION_OPEN, "_Open", "_Cancel");
gint res = gtk_native_dialog_run(GTK_NATIVE_DIALOG(native));
if (res == GTK_RESPONSE_ACCEPT) {
const char* path = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(native));
gui_data.file = g_file_new_for_path(path);
activate_reset(action, parameter, app);
}
else {
run(&gui_data);
}
g_object_unref(native);
}
// app.close GAction
// Closes a ROM
static void activate_close(GSimpleAction *action, GVariant *parameter, gpointer app) {
stop(&gui_data);
GB_free(&gb);
// Clear the screen as side effect
update_window_geometry();
gtk_widget_queue_draw(fallback_canvas ? GTK_WIDGET(fallback_canvas) : GTK_WIDGET(gl_area));
// Clear the VRAM viewer
g_mutex_lock(&tileset_buffer_mutex);
memset(tileset_buffer, 0, sizeof tileset_buffer);
g_mutex_unlock(&tileset_buffer_mutex);
g_mutex_lock(&tilemap_buffer_mutex);
memset(tilemap_buffer, 0, sizeof tilemap_buffer);
g_mutex_unlock(&tilemap_buffer_mutex);
gtk_stack_set_visible_child_name(builder_get(GTK_STACK, "vram_viewer_stack"), "vram_viewer_tileset");
gtk_tree_view_set_model(builder_get(GTK_TREE_VIEW, "vram_viewer_sprites"), NULL);
gtk_tree_view_set_model(builder_get(GTK_TREE_VIEW, "vram_viewer_palettes"), NULL);
// Redraw the VRAM viewer
gtk_widget_queue_draw(GTK_WIDGET(vram_viewer));
// Update menu action states
action_set_enabled(main_application, "close", false);
action_entries_set_enabled(emulation_entries, G_N_ELEMENTS(emulation_entries), false);
}
// app.preferences GAction
// Opens the preferences window
static void activate_preferences(GSimpleAction *action, GVariant *parameter, gpointer app) {
gtk_widget_show_all(GTK_WIDGET(get_object("preferences")));
}
// app.quit GAction
// Exits the application
static void activate_quit(GSimpleAction *action, GVariant *parameter, gpointer app) {
quit();
}
// app.reset GAction
// Resets the emulation
static void activate_reset(GSimpleAction *action, GVariant *parameter, gpointer app) {
if (!GB_is_inited(&gb)) {
init(&gui_data);
}
stop(&gui_data);
reset(&gui_data);
run(&gui_data);
}
// app.clear_console GAction
// Clears the debugger console
static void activate_clear_console(GSimpleAction *action, GVariant *parameter, gpointer app) {
g_rec_mutex_lock(&console_output_lock);
GtkTextView *text_view = builder_get(GTK_TEXT_VIEW, "console_screen");
GtkTextBuffer *text_buf = gtk_text_view_get_buffer(text_view);
gtk_text_buffer_set_text(text_buf, "", -1);
g_rec_mutex_unlock(&console_output_lock);
}
static void on_model_changed(GSimpleAction *action, GVariant *value, gpointer user_data) {
if (!GB_is_inited(&gb)) {
g_simple_action_set_state(action, value);
return;
}
const gchar *model_str = g_variant_get_string(value, NULL);
GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG(gtk_message_dialog_new(
GTK_WINDOW(main_window),
GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_QUESTION,
GTK_BUTTONS_YES_NO,
"Changing the emulated model requires a reset.\nChange model and reset game?"
));
stop(&gui_data);
gint result = gtk_dialog_run(GTK_DIALOG(dialog));
switch (result) {
case GTK_RESPONSE_YES:
// Reset the CLI model override
gui_data.cli_options.model = -1;
g_simple_action_set_state(action, value);
reset(&gui_data);
break;
default:
// Action has been canceled
break;
}
run(&gui_data);
gtk_widget_destroy(GTK_WIDGET(dialog));
}
static void on_mute_changed(GSimpleAction *action, GVariant *value, gpointer user_data) {
gboolean do_mute = g_variant_get_boolean(value);
if (do_mute) {
SDL_PauseAudioDevice(device_id, 1);
}
else {
SDL_ClearQueuedAudio(device_id);
SDL_PauseAudioDevice(device_id, 0);
}
g_simple_action_set_state(action, value);
}
static void on_pause_changed(GSimpleAction *action, GVariant *value, gpointer user_data) {
if (g_variant_get_boolean(value)) {
stop(&gui_data);
}
else {
run(&gui_data);
}
g_simple_action_set_state(action, value);
}
// `destroy` signal GCallback
// Exits the application
static void on_quit(GtkWidget *w, gpointer app) {
quit();
}
// TODO: Comment
static void gl_init(GtkWidget *w) {
GtkGLArea *gl_area = GTK_GL_AREA(w);
g_debug("GL_INIT");
const char *renderer;
g_debug("GL Context: %p", gtk_gl_area_get_context(gl_area));
gtk_gl_area_make_current(gl_area);
if (gtk_gl_area_get_error(gl_area) != NULL) {
goto error;
}
renderer = (char *)glGetString(GL_RENDERER);
g_debug("GtkGLArea on %s", renderer ? renderer : "Unknown");
if (config.shader == NULL || (!init_shader_with_name(&shader, config.shader) && !init_shader_with_name(&shader, "NearestNeighbor"))) {
GError *error = g_error_new_literal(g_quark_from_string("sameboy-gl-error"), 1, "Failed to initialize shaders");
gtk_gl_area_set_error(gl_area, error);
}
else {
g_signal_connect(gl_area, "render", G_CALLBACK(gl_draw), NULL);
g_signal_connect(gl_area, "resize", G_CALLBACK(resize), NULL);
g_signal_connect(gl_area, "unrealize", G_CALLBACK(gl_finish), NULL);
return;
}
error:
if (gtk_gl_area_get_error(gl_area) != NULL) {
g_warning("GtkGLArea: %s", gtk_gl_area_get_error(gl_area)->message);
}
create_fallback_canvas();
}
// TODO: Comment
static void gl_draw() {
render_texture(get_current_buffer(), get_previous_buffer());
}
// TODO: Comment
static void gl_finish() { }
// TODO: Comment
static gboolean on_draw_fallback(GtkWidget *widget, cairo_t *cr, gpointer data) {
GtkStyleContext *context = gtk_widget_get_style_context(widget);
guint width = gtk_widget_get_allocated_width(widget);
guint height = gtk_widget_get_allocated_height(widget);
guint screen_width = GB_get_screen_width(&gb);
guint screen_height = GB_get_screen_height(&gb);
gtk_render_background(context, cr, 0, 0, width, height);
cairo_surface_t *surface = cairo_image_surface_create_for_data(
(unsigned char *) get_current_buffer(),
CAIRO_FORMAT_RGB24,
screen_width,
screen_height,
cairo_format_stride_for_width(CAIRO_FORMAT_RGB24, screen_width)
);
cairo_translate(cr, viewport.x, viewport.y);
cairo_scale(cr, viewport.w / screen_width, viewport.h / screen_height);
cairo_set_source_surface(cr, surface, 0, 0);
cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST);
cairo_paint(cr);
return false;
}
// TODO: Comment
static void resize() {
update_viewport();
}
// Gets called when the VRAM viewer gets realized
static void on_vram_viewer_realize() {
vram_viewer_visible = true;
vram_viewer_active_tab = (gchar *)gtk_stack_get_visible_child_name(builder_get(GTK_STACK, "vram_viewer_stack"));
}
// Gets called when the VRAM viewer gets unrealized
static void on_vram_viewer_unrealize() {
vram_viewer_visible = false;
}
// Gets called when the tileset viewer should be redrawn
static gboolean on_draw_vram_viewer_tileset(GtkWidget *widget, cairo_t *cr, gpointer data) {
g_mutex_lock(&tileset_buffer_mutex);
guint width, height;
GtkStyleContext *context;
context = gtk_widget_get_style_context(widget);
width = gtk_widget_get_allocated_width(widget);
height = gtk_widget_get_allocated_height(widget);
gtk_render_background(context, cr, 0, 0, width, height);
cairo_surface_t *surface = cairo_image_surface_create_for_data(
(unsigned char *) tileset_buffer,
CAIRO_FORMAT_RGB24,
256,
192,
cairo_format_stride_for_width(CAIRO_FORMAT_RGB24, 256)
);
cairo_scale(cr, 2.0, 2.0);
cairo_set_source_surface(cr, surface, 0, 0);
cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST);
cairo_paint(cr);
if (gtk_toggle_button_get_active(builder_get(GTK_TOGGLE_BUTTON, "vram_viewer_tileset_toggle_grid_button"))) {
cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.25);
cairo_set_line_width(cr, 1);
const int divisions_x = 256 / 8;
const int divisions_y = 192 / 8;
for (int i = 0; i < divisions_x; i++) {
const int j = 256 * i;
cairo_move_to(cr, j / divisions_x, 0);
cairo_line_to(cr, j / divisions_x, 192);
}
for (int i = 0; i < divisions_y; i++) {
const int j = 192 * i;
cairo_move_to(cr, 0, j / divisions_y);
cairo_line_to(cr, 256, j / divisions_y);
}
cairo_stroke(cr);
}
g_mutex_unlock(&tileset_buffer_mutex);
return false;
}
// Gets called when the tilemap viewer should be redrawn
static gboolean on_draw_vram_viewer_tilemap(GtkWidget *widget, cairo_t *cr, gpointer data) {
g_mutex_lock(&tilemap_buffer_mutex);
guint width, height;
GtkStyleContext *context;
context = gtk_widget_get_style_context(widget);
width = gtk_widget_get_allocated_width(widget);
height = gtk_widget_get_allocated_height(widget);
gtk_render_background(context, cr, 0, 0, width, height);
cairo_surface_t *surface = cairo_image_surface_create_for_data(
(unsigned char *) tilemap_buffer,
CAIRO_FORMAT_RGB24,
256,
256,
cairo_format_stride_for_width(CAIRO_FORMAT_RGB24, 256)
);
cairo_scale(cr, 2.0, 2.0);
cairo_set_source_surface(cr, surface, 0, 0);
cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST);
cairo_paint(cr);
if (gtk_toggle_button_get_active(builder_get(GTK_TOGGLE_BUTTON, "vram_viewer_tilemap_toggle_grid_button"))) {
cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.25);
cairo_set_line_width(cr, 1);
const int divisions = 256 / 8;
for (int i = 0; i < divisions; i++) {
const int j = 256 * i;
cairo_move_to(cr, j / divisions, 0);
cairo_line_to(cr, j / divisions, 256);
cairo_move_to(cr, 0, j / divisions);
cairo_line_to(cr, 256, j / divisions);
}
cairo_stroke(cr);
}
if (gtk_toggle_button_get_active(builder_get(GTK_TOGGLE_BUTTON, "vram_viewer_tilemap_toggle_scrolling_button"))) {
cairo_rectangle(cr, -2, -2, width + 2, height + 2);
for (unsigned x = 0; x < 2; x++) {
for (unsigned y = 0; y < 2; y++) {
Rect rect = scrollRect;
rect.x -= 256 * x;
rect.y += 256 * y;
cairo_rectangle(cr, rect.x, rect.y, rect.w, rect.h);
}
}
cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_set_line_width(cr, 2);
cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
cairo_set_source_rgba(cr, 0.2, 0.2, 0.2, 0.5);
cairo_fill_preserve(cr);
cairo_clip_preserve(cr);
cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.6);
cairo_stroke(cr);
}
g_mutex_unlock(&tilemap_buffer_mutex);
return false;
}
static gboolean on_motion_vram_viewer_tileset(GtkWidget *widget, GdkEventMotion *event) {
int x, y;
if (event->is_hint) {
gdk_window_get_pointer (event->window, &x, &y, NULL);
}
else {
x = event->x;
y = event->y;
}
// Compensate for our canvas scale
x /= 2;
y /= 2;
uint8_t bank = x >= 128? 1 : 0;
x &= 127;
uint16_t tile = x / 8 + y / 8 * 16;
GtkLabel *status = builder_get(GTK_LABEL, "vram_viewer_status");
gtk_label_set_text(status, g_strdup_printf("Tile number $%02x at %d:$%04x", tile & 0xFF, bank, 0x8000 + tile * 0x10));
return true;
}
static gboolean on_motion_vram_viewer_tilemap(GtkWidget *widget, GdkEventMotion *event) {
int x, y;
if (event->is_hint) {
gdk_window_get_pointer (event->window, &x, &y, NULL);
}
else {
x = event->x;
y = event->y;
}
// Compensate for our canvas scale
x /= 2;
y /= 2;
GtkLabel *status = builder_get(GTK_LABEL, "vram_viewer_status");
uint16_t map_offset = x / 8 + y / 8 * 32;
uint16_t map_base = 0x1800;
GB_map_type_t map_type = GB_MAP_AUTO;
const gchar *map_type_id = gtk_combo_box_get_active_id(builder_get(GTK_COMBO_BOX, "vram_viewer_tilemap_tilemap_selector"));
if (g_strcmp0("auto", map_type_id) != 0) {
map_type = (g_strcmp0("9800", map_type_id) == 0)? GB_MAP_9800 : GB_MAP_9C00;
}
GB_tileset_type_t tileset_type = GB_TILESET_AUTO;
const gchar *tileset_type_id = gtk_combo_box_get_active_id(builder_get(GTK_COMBO_BOX, "vram_viewer_tilemap_tileset_selector"));
if (g_strcmp0("auto", tileset_type_id) != 0) {
tileset_type = (g_strcmp0("8800", tileset_type_id) == 0)? GB_TILESET_8800 : GB_TILESET_8000;
}
uint8_t lcdc = ((uint8_t *)GB_get_direct_access(&gb, GB_DIRECT_ACCESS_IO, NULL, NULL))[GB_IO_LCDC];
uint8_t *vram = GB_get_direct_access(&gb, GB_DIRECT_ACCESS_VRAM, NULL, NULL);
if (map_type == GB_MAP_9C00 || (map_type == GB_MAP_AUTO && lcdc & 0x08)) {
map_base = 0x1c00;
}
if (tileset_type == GB_TILESET_AUTO) {
tileset_type = (lcdc & 0x10)? GB_TILESET_8800 : GB_TILESET_8000;
}
uint8_t tile = vram[map_base + map_offset];
uint16_t tile_address = 0;
if (tileset_type == GB_TILESET_8000) {
tile_address = 0x8000 + tile * 0x10;
}
else {
tile_address = 0x9000 + (int8_t)tile * 0x10;
}
if (GB_is_cgb(&gb)) {
uint8_t attributes = vram[map_base + map_offset + 0x2000];
gtk_label_set_text(status, g_strdup_printf("Tile number $%02x (%d:$%04x) at map address $%04x (Attributes: %c%c%c%d%d)",
tile,
attributes & 0x8? 1 : 0,
tile_address,
0x8000 + map_base + map_offset,
(attributes & 0x80) ? 'P' : '-',
(attributes & 0x40) ? 'V' : '-',
(attributes & 0x20) ? 'H' : '-',
attributes & 0x8? 1 : 0,
attributes & 0x7
));
}
else {
gtk_label_set_text(status, g_strdup_printf("Tile number $%02x ($%04x) at map address $%04x",
tile,
tile_address,
0x8000 + map_base + map_offset
));
}
return true;
}
static void on_vram_tab_change(GtkWidget *widget, GParamSpec *pspec, GtkStackSwitcher *self) {
gtk_label_set_text(builder_get(GTK_LABEL, "vram_viewer_status"), "");
vram_viewer_active_tab = (gchar *)gtk_stack_get_visible_child_name(builder_get(GTK_STACK, "vram_viewer_stack"));
}
G_MODULE_EXPORT void on_boot_rom_location_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkComboBox *box = GTK_COMBO_BOX(w);
const gchar *id = gtk_combo_box_get_active_id(box);
if (id == NULL) return;
if (g_strcmp0(id, "other") == 0) {
GtkFileChooserNative *native = gtk_file_chooser_native_new("Select Folder", preferences, GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER, "_Select", "_Cancel");
gint res = gtk_native_dialog_run(GTK_NATIVE_DIALOG(native));
if (res == GTK_RESPONSE_ACCEPT) {
config.boot_rom_path = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(native));
update_boot_rom_selector(builder);
}
g_object_unref(native);
}
else {
config.boot_rom_path = (gchar *)id;
}
}
G_MODULE_EXPORT void on_cgb_model_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkComboBox *box = GTK_COMBO_BOX(w);
config.cgb_revision_name = (gchar *)gtk_combo_box_get_active_id(box);
}
G_MODULE_EXPORT void on_color_correction_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkComboBox *box = GTK_COMBO_BOX(w);
config.color_correction_id = (gchar *)gtk_combo_box_get_active_id(box);
if (GB_is_inited(&gb)) {
GB_set_color_correction_mode(&gb, get_color_correction_mode());
}
}
G_MODULE_EXPORT void on_frame_blending_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkComboBox *box = GTK_COMBO_BOX(w);
config.frame_blending_mode = (gchar *)gtk_combo_box_get_active_id(box);
}
G_MODULE_EXPORT void on_display_border_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkComboBox *box = GTK_COMBO_BOX(w);
config.display_border_mode = (gchar *)gtk_combo_box_get_active_id(box);
border_mode_changed = true;
}
G_MODULE_EXPORT void on_monochrome_palette_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkComboBox *box = GTK_COMBO_BOX(w);
config.monochrome_palette_id = (gchar *)gtk_combo_box_get_active_id(box);
GB_set_palette(&gb, get_monochrome_palette());
}
G_MODULE_EXPORT void on_color_menubar_override_changed(GtkWidget *w, gpointer user_data_gptr) {
config.menubar_override = (gchar *)gtk_combo_box_get_active_id(GTK_COMBO_BOX(w));
}
G_MODULE_EXPORT void on_dmg_model_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkComboBox *box = GTK_COMBO_BOX(w);
config.dmg_revision_name = (gchar *)gtk_combo_box_get_active_id(box);
}
G_MODULE_EXPORT void on_graphic_filter_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkComboBox *box = GTK_COMBO_BOX(w);
config.shader = (gchar *)gtk_combo_box_get_active_id(box);
free_shader(&shader);
init_shader_with_name(&shader, config.shader);
}
G_MODULE_EXPORT void on_highpass_filter_changed(GtkWidget *w, gpointer user_data_gptr) {
config.high_pass_filter_id = (gchar *)gtk_combo_box_get_active_id(GTK_COMBO_BOX(w));
if (GB_is_inited(&gb)) {
GB_set_highpass_filter_mode(&gb, get_highpass_mode());
}
}
G_MODULE_EXPORT void on_keep_aspect_ratio_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkCheckButton *button = GTK_CHECK_BUTTON(w);
gboolean value = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button));
config.keep_aspect_ratio = value;
update_viewport();
}
G_MODULE_EXPORT void on_rewind_duration_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkComboBox *box = GTK_COMBO_BOX(w);
config.rewind_duration = g_ascii_strtoll(gtk_combo_box_get_active_id(box), NULL, 10);
GB_set_rewind_length(&gb, config.rewind_duration);
}
G_MODULE_EXPORT void on_sample_rate_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkComboBox *box = GTK_COMBO_BOX(w);
config.sample_rate = g_ascii_strtoll(gtk_combo_box_get_active_id(box), NULL, 10);
if (config.sample_rate == -1) {
gui_data.sample_rate = DEFAULT_AUDIO_SAMPLE_RATE;
}
else {
gui_data.sample_rate = config.sample_rate;
}
init_audio();
}
G_MODULE_EXPORT void on_sgb_model_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkComboBox *box = GTK_COMBO_BOX(w);
config.sgb_revision_name = (gchar *)gtk_combo_box_get_active_id(box);
}
G_MODULE_EXPORT void on_use_integer_scaling_changed(GtkWidget *w, gpointer user_data_gptr) {
GtkCheckButton *button = GTK_CHECK_BUTTON(w);
gboolean value = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button));
config.use_integer_scaling = value;
update_viewport();
}
G_MODULE_EXPORT void console_on_enter(GtkWidget *w, gpointer user_data_gptr) {
GtkEntry *input = GTK_ENTRY(w);
const gchar *_text = gtk_entry_get_text(input);
gchar *text = g_strdup(_text);
if (g_strcmp0("", text) == 0 && g_strcmp0("", last_console_input) < 0) {
text = g_strdup(last_console_input);
}
else if (text) {
if (last_console_input != NULL) g_free(last_console_input);
last_console_input = g_strdup(text);
}
if (!in_sync_input) {
console_log(&gb, "> ", 0);
}
console_log(&gb, text, 0);
console_log(&gb, "\n", 0);
g_mutex_lock(&debugger_input_mutex);
g_ptr_array_add(debugger_input_queue, (gpointer)text);
g_cond_signal(&debugger_input_cond);
g_mutex_unlock(&debugger_input_mutex);
// clear input
gtk_entry_set_text(input, "");
}
static uint32_t rgb_encode(GB_gameboy_t *gb, uint8_t r, uint8_t g, uint8_t b) {
return 0xFF000000 | (r << 16) | (g << 8) | b;
}
static void render_texture(void *pixels, void *previous) {
static void *_pixels = NULL;
if (pixels) {
_pixels = pixels;
}
glClearColor(0, 0, 0, 1);
glClear(GL_COLOR_BUFFER_BIT);
GB_frame_blending_mode_t mode = get_frame_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),
viewport.x, viewport.y, viewport.w, viewport.h,
mode
);
}
static void update_viewport(void) {
GtkWidget *w = fallback_canvas ? GTK_WIDGET(fallback_canvas) : GTK_WIDGET(gl_area);
int win_width = gtk_widget_get_allocated_width(w);
int win_height = gtk_widget_get_allocated_height(w);
double x_factor = win_width / (double) GB_get_screen_width(&gb);
double y_factor = win_height / (double) GB_get_screen_height(&gb);
if (config.use_integer_scaling) {
x_factor = (int)(x_factor);
y_factor = (int)(y_factor);
}
if (config.keep_aspect_ratio) {
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);
viewport = (Rect){
(win_width - new_width) / 2,
(win_height - new_height) / 2,
new_width,
new_height
};
if (!fallback_canvas) glViewport(viewport.x, viewport.y, viewport.w, viewport.h);
}
static void update_window_geometry() {
// Set size hints
GdkGeometry hints;
hints.min_width = GB_get_screen_width(&gb);
hints.min_height = GB_get_screen_height(&gb);
gtk_window_set_geometry_hints(
GTK_WINDOW(main_window),
NULL,
&hints,
(GdkWindowHints)(GDK_HINT_MIN_SIZE)
);
gtk_window_resize(GTK_WINDOW(main_window),
GB_get_screen_width(&gb) * 2,
GB_get_screen_height(&gb) * 2
);
// Setup our image buffers
if (image_buffers[0]) g_free(image_buffers[0]);
if (image_buffers[1]) g_free(image_buffers[1]);
if (image_buffers[2]) g_free(image_buffers[2]);
size_t buffer_size = sizeof(image_buffers[0][0]) * GB_get_screen_width(&gb) * GB_get_screen_height(&gb);
image_buffers[0] = g_malloc0(buffer_size);
image_buffers[1] = g_malloc0(buffer_size);
image_buffers[2] = g_malloc0(buffer_size);
if (GB_is_inited(&gb)) {
GB_set_pixels_output(&gb, get_pixels());
}
}
static void handle_events(GB_gameboy_t *gb) {
SDL_GameControllerUpdate();
uint8_t controller_state = 0;
if (controller) {
int16_t x_axis = SDL_GameControllerGetAxis(controller, SDL_CONTROLLER_AXIS_LEFTX);
int16_t y_axis = SDL_GameControllerGetAxis(controller, SDL_CONTROLLER_AXIS_LEFTY);
if (x_axis >= JOYSTICK_HIGH) {
controller_state |= BUTTON_MASK_RIGHT;
}
else if (x_axis <= -JOYSTICK_HIGH) {
controller_state |= BUTTON_MASK_LEFT;
}
if (y_axis >= JOYSTICK_HIGH) {
controller_state |= BUTTON_MASK_DOWN;
}
else if (y_axis <= -JOYSTICK_HIGH) {
controller_state |= BUTTON_MASK_UP;
}
if (SDL_GameControllerGetButton(controller, SDL_CONTROLLER_BUTTON_DPAD_RIGHT)) controller_state |= BUTTON_MASK_RIGHT;
if (SDL_GameControllerGetButton(controller, SDL_CONTROLLER_BUTTON_DPAD_LEFT)) controller_state |= BUTTON_MASK_LEFT;
if (SDL_GameControllerGetButton(controller, SDL_CONTROLLER_BUTTON_DPAD_UP)) controller_state |= BUTTON_MASK_UP;
if (SDL_GameControllerGetButton(controller, SDL_CONTROLLER_BUTTON_DPAD_DOWN)) controller_state |= BUTTON_MASK_DOWN;
if (SDL_GameControllerGetButton(controller, SDL_CONTROLLER_BUTTON_A)) controller_state |= BUTTON_MASK_A;
if (SDL_GameControllerGetButton(controller, SDL_CONTROLLER_BUTTON_B)) controller_state |= BUTTON_MASK_B;
if (SDL_GameControllerGetButton(controller, SDL_CONTROLLER_BUTTON_BACK)) controller_state |= BUTTON_MASK_SELECT;
if (SDL_GameControllerGetButton(controller, SDL_CONTROLLER_BUTTON_START)) controller_state |= BUTTON_MASK_START;
}
GB_set_key_state(gb, GB_KEY_RIGHT, (pressed_buttons & BUTTON_MASK_RIGHT) | (controller_state & BUTTON_MASK_RIGHT));
GB_set_key_state(gb, GB_KEY_LEFT, (pressed_buttons & BUTTON_MASK_LEFT) | (controller_state & BUTTON_MASK_LEFT));
GB_set_key_state(gb, GB_KEY_UP, (pressed_buttons & BUTTON_MASK_UP) | (controller_state & BUTTON_MASK_UP));
GB_set_key_state(gb, GB_KEY_DOWN, (pressed_buttons & BUTTON_MASK_DOWN) | (controller_state & BUTTON_MASK_DOWN));
GB_set_key_state(gb, GB_KEY_A, (pressed_buttons & BUTTON_MASK_A) | (controller_state & BUTTON_MASK_A));
GB_set_key_state(gb, GB_KEY_B, (pressed_buttons & BUTTON_MASK_B) | (controller_state & BUTTON_MASK_B));
GB_set_key_state(gb, GB_KEY_SELECT, (pressed_buttons & BUTTON_MASK_SELECT) | (controller_state & BUTTON_MASK_SELECT));
GB_set_key_state(gb, GB_KEY_START, (pressed_buttons & BUTTON_MASK_START) | (controller_state & BUTTON_MASK_START));
}
static uint32_t convert_color(uint16_t color) {
const uint8_t r = ((uint16_t)(color & 0x1F) * 255) / 31;
const uint8_t g = ((uint16_t)((color >> 5) & 0x1F) * 255) / 31;
const uint8_t b = ((uint16_t)((color >> 10) & 0x1F) * 255) / 31;
return (r << 16) | (g << 8) | b;
}
static void palette_color_data_func(GtkTreeViewColumn *col, GtkCellRenderer *renderer, GtkTreeModel *model, GtkTreeIter *iter, gpointer user_data) {
const gchar *title = gtk_tree_view_column_get_title(col);
const uint8_t color_index = g_ascii_strtoll(&title[6], NULL, 10);
const uint8_t column_index = 2 + (2 * color_index);
GValue color_val = G_VALUE_INIT;
gtk_tree_model_get_value(model, iter, column_index, &color_val);
gint color = g_value_get_int(&color_val);
gchar *color_string = g_strdup_printf("#%06x", color);
gint lightness = 0.299 * ((color >> 16) & 0xFF) + 0.587 * ((color >> 8) & 0xFF) + 0.114 * (color & 0xFF);
GValue color_str = G_VALUE_INIT;
g_value_init(&color_str, G_TYPE_STRING);
g_value_set_string(&color_str, color_string);
g_object_set_property(G_OBJECT(renderer), "background", &color_str);
GValue fg_color_str = G_VALUE_INIT;
g_value_init(&fg_color_str, G_TYPE_STRING);
g_value_set_static_string(&fg_color_str, (lightness > 0x7F)? "#000000" : "#FFFFFF");
g_object_set_property(G_OBJECT(renderer), "foreground", &fg_color_str);
g_value_unset(&color_val);
g_value_unset(&color_str);
g_value_unset(&fg_color_str);
g_free(color_string);
}
static void on_vblank(gpointer data) {
if (!vram_viewer_updating && vram_viewer_visible) {
vram_viewer_updating = true;
if (g_strcmp0("vram_viewer_sprites", vram_viewer_active_tab) == 0) {
GtkTreeIter iter;
GtkTreeView *tree_view = builder_get(GTK_TREE_VIEW, "vram_viewer_sprites");
// gtk_tree_view_set_model(tree_view, NULL); // Do we need this?
GtkListStore *store = gtk_list_store_new(7,
GDK_TYPE_PIXBUF, // Preview image
G_TYPE_STRING, // X position
G_TYPE_STRING, // Y position
G_TYPE_STRING, // Tile
G_TYPE_STRING, // Tile Address
G_TYPE_STRING, // OAM Address
G_TYPE_STRING // Attributes
);
gtk_tree_model_get_iter_first(GTK_TREE_MODEL(store), &iter);
for (unsigned row = 0; row < oamCount; ++row) {
GdkPixbuf *pixbuf = gdk_pixbuf_new_from_bytes(
g_bytes_new(oamInfo[row].image, 128 * sizeof(uint32_t)),
GDK_COLORSPACE_RGB, true, 8, 8, oamHeight, 8 * sizeof(uint32_t)
);
GdkPixbuf *dest = gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, 8 * 2, oamHeight * 2);
gdk_pixbuf_scale(pixbuf, dest,
0, 0, 8 * 2, oamHeight * 2,
0, 0, 2.0, 2.0,
GDK_INTERP_NEAREST
);
gtk_list_store_insert_with_values(store, &iter, -1,
0, dest,
1, itoa(oamInfo[row].x - 8),
2, itoa(oamInfo[row].y - 16),
3, g_strdup_printf("$%02x", oamInfo[row].tile),
4, g_strdup_printf("$%04x", 0x8000 + oamInfo[row].tile * 0x10),
5, g_strdup_printf("$%04x", oamInfo[row].oam_addr),
6, vram_viewer_is_cgb
? g_strdup_printf("%c%c%c%d%d",
oamInfo[row].flags & 0x80? 'P' : '-',
oamInfo[row].flags & 0x40? 'Y' : '-',
oamInfo[row].flags & 0x20? 'X' : '-',
oamInfo[row].flags & 0x08? 1 : 0,
oamInfo[row].flags & 0x07)
: g_strdup_printf("%c%c%c%d",
oamInfo[row].flags & 0x80? 'P' : '-',
oamInfo[row].flags & 0x40? 'Y' : '-',
oamInfo[row].flags & 0x20? 'X' : '-',
oamInfo[row].flags & 0x10? 1 : 0),
-1
);
g_object_unref(pixbuf);
g_object_unref(dest);
}
gtk_tree_view_set_model(tree_view, GTK_TREE_MODEL(store));
g_object_unref(store);
}
else if (g_strcmp0("vram_viewer_palettes", vram_viewer_active_tab) == 0) {
GtkTreeIter iter;
GtkTreeView *tree_view = builder_get(GTK_TREE_VIEW, "vram_viewer_palettes");
// gtk_tree_view_set_model(tree_view, NULL); // Do we need this?
GtkListStore *store = gtk_list_store_new(9,
G_TYPE_STRING, // Name
G_TYPE_STRING, // Color 0 string
G_TYPE_INT, // Color 0 integer
G_TYPE_STRING, // Color 1 string
G_TYPE_INT, // Color 1 integer
G_TYPE_STRING, // Color 2 string
G_TYPE_INT, // Color 2 integer
G_TYPE_STRING, // Color 3 string
G_TYPE_INT // Color 3 integer
);
gtk_tree_model_get_iter_first(GTK_TREE_MODEL(store), &iter);
for (unsigned row = 0; row < 16; ++row) {
uint8_t offset = (row & 7) * 4;
uint16_t color_0 = (vram_viewer_palette_data[row][((0 + offset) << 1) + 1] << 8) | vram_viewer_palette_data[row][((0 + offset) << 1)];
uint16_t color_1 = (vram_viewer_palette_data[row][((1 + offset) << 1) + 1] << 8) | vram_viewer_palette_data[row][((1 + offset) << 1)];
uint16_t color_2 = (vram_viewer_palette_data[row][((2 + offset) << 1) + 1] << 8) | vram_viewer_palette_data[row][((2 + offset) << 1)];
uint16_t color_3 = (vram_viewer_palette_data[row][((3 + offset) << 1) + 1] << 8) | vram_viewer_palette_data[row][((3 + offset) << 1)];
gtk_list_store_insert_with_values(store, &iter, -1,
0, g_strdup_printf("%s %d", row >=8 ? "Object" : "Background", row & 7),
1, g_strdup_printf("$%04x", color_0 & 0x7FFF),
2, convert_color(color_0),
3, g_strdup_printf("$%04x", color_1 & 0x7FFF),
4, convert_color(color_1),
5, g_strdup_printf("$%04x", color_2 & 0x7FFF),
6, convert_color(color_2),
7, g_strdup_printf("$%04x", color_3 & 0x7FFF),
8, convert_color(color_3),
-1
);
}
GtkTreeViewColumn *column_0 = gtk_tree_view_get_column(tree_view, 1);
GtkTreeViewColumn *column_1 = gtk_tree_view_get_column(tree_view, 2);
GtkTreeViewColumn *column_2 = gtk_tree_view_get_column(tree_view, 3);
GtkTreeViewColumn *column_3 = gtk_tree_view_get_column(tree_view, 4);
GtkCellRendererText *cell_renderer_0 = builder_get(GTK_CELL_RENDERER_TEXT, "vram_viewer_palette_cell_renderer_0");
GtkCellRendererText *cell_renderer_1 = builder_get(GTK_CELL_RENDERER_TEXT, "vram_viewer_palette_cell_renderer_1");
GtkCellRendererText *cell_renderer_2 = builder_get(GTK_CELL_RENDERER_TEXT, "vram_viewer_palette_cell_renderer_2");
GtkCellRendererText *cell_renderer_3 = builder_get(GTK_CELL_RENDERER_TEXT, "vram_viewer_palette_cell_renderer_3");
gtk_tree_view_column_set_cell_data_func(column_0, GTK_CELL_RENDERER(cell_renderer_0), palette_color_data_func, NULL, NULL);
gtk_tree_view_column_set_cell_data_func(column_1, GTK_CELL_RENDERER(cell_renderer_1), palette_color_data_func, NULL, NULL);
gtk_tree_view_column_set_cell_data_func(column_2, GTK_CELL_RENDERER(cell_renderer_2), palette_color_data_func, NULL, NULL);
gtk_tree_view_column_set_cell_data_func(column_3, GTK_CELL_RENDERER(cell_renderer_3), palette_color_data_func, NULL, NULL);
gtk_tree_view_set_model(tree_view, GTK_TREE_MODEL(store));
g_object_unref(store);
}
// Queue a redraw of the VRAM viewer
gtk_widget_queue_draw(GTK_WIDGET(vram_viewer));
vram_viewer_updating = false;
}
// Queue drawing of the current frame
if (fallback_canvas) {
gtk_widget_queue_draw(GTK_WIDGET(main_window));
}
else if (gl_area) {
gtk_gl_area_queue_render(gl_area);
}
}
static void vblank(GB_gameboy_t *gb) {
flip();
if (border_mode_changed) {
GB_set_border_mode(gb, get_display_border_mode());
update_window_geometry();
border_mode_changed = false;
}
GB_set_pixels_output(gb, get_pixels());
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 (g_strcmp0("vram_viewer_tileset", vram_viewer_active_tab) == 0) {
const gchar *palette_id = gtk_combo_box_get_active_id(builder_get(GTK_COMBO_BOX, "vram_viewer_tileset_palette_selector"));
GB_palette_type_t palette_type = g_str_has_prefix(palette_id, "bg")? GB_PALETTE_BACKGROUND : GB_PALETTE_OAM;
uint8_t palette_index = g_ascii_digit_value(palette_id[palette_type == GB_PALETTE_OAM ? 3 : 2]);
GB_draw_tileset(gb, tileset_buffer,
palette_type,
palette_index
);
}
else if (g_strcmp0("vram_viewer_tilemap", vram_viewer_active_tab) == 0) {
const gchar *palette_id = gtk_combo_box_get_active_id(builder_get(GTK_COMBO_BOX, "vram_viewer_tilemap_palette_selector"));
uint8_t palette_index = 0;
GB_palette_type_t palette_type = GB_PALETTE_AUTO;
if (g_strcmp0("auto", palette_id) != 0) {
palette_type = g_str_has_prefix(palette_id, "bg")? GB_PALETTE_BACKGROUND : GB_PALETTE_OAM;
palette_index = g_ascii_digit_value(palette_id[palette_type == GB_PALETTE_OAM ? 3 : 2]);
}
GB_map_type_t map_type = GB_MAP_AUTO;
const gchar *map_type_id = gtk_combo_box_get_active_id(builder_get(GTK_COMBO_BOX, "vram_viewer_tilemap_tilemap_selector"));
if (g_strcmp0("auto", map_type_id) != 0) {
map_type = (g_strcmp0("9800", map_type_id) == 0)? GB_MAP_9800 : GB_MAP_9C00;
}
GB_tileset_type_t tileset_type = GB_TILESET_AUTO;
const gchar *tileset_type_id = gtk_combo_box_get_active_id(builder_get(GTK_COMBO_BOX, "vram_viewer_tilemap_tileset_selector"));
if (g_strcmp0("auto", tileset_type_id) != 0) {
tileset_type = (g_strcmp0("8800", tileset_type_id) == 0)? GB_TILESET_8800 : GB_TILESET_8000;
}
GB_draw_tilemap(gb, tilemap_buffer,
palette_type,
palette_index,
map_type,
tileset_type
);
scrollRect = (Rect){
GB_read_memory(gb, 0xFF00 | GB_IO_SCX),
GB_read_memory(gb, 0xFF00 | GB_IO_SCY),
160, 144
};
}
else if (g_strcmp0("vram_viewer_sprites", vram_viewer_active_tab) == 0) {
oamCount = GB_get_oam_info(gb, oamInfo, &oamHeight);
vram_viewer_is_cgb = GB_is_cgb(gb);
}
else if (g_strcmp0("vram_viewer_palettes", vram_viewer_active_tab) == 0) {
size_t size;
for (unsigned row = 0; row < 16; ++row) {
uint8_t *palette_data = GB_get_direct_access(gb, row >= 8? GB_DIRECT_ACCESS_OBP : GB_DIRECT_ACCESS_BGP, &size, NULL);
memcpy(vram_viewer_palette_data[row], palette_data, size);
}
}
do_rewind = rewind_down;
g_idle_add((GSourceFunc) on_vblank, NULL);
}
static void run(GuiData *gui_data) {
if (running) return;
while (stopping);
g_thread_new("CoreLoop", run_thread, gui_data);
}
static gpointer run_thread(gpointer gui_data_gptr) {
GuiData *gui_data = gui_data_gptr;
if (!gui_data->file) return NULL;
if (gui_data->stopped) {
start(gui_data);
}
else {
init(gui_data);
reset(gui_data);
start(gui_data);
}
return NULL;
}
static void init(GuiData *gui_data) {
if (GB_is_inited(&gb)) return;
GB_init(&gb, get_model());
GB_set_vblank_callback(&gb, vblank);
GB_set_pixels_output(&gb, get_current_buffer());
GB_set_rgb_encode_callback(&gb, rgb_encode);
GB_set_sample_rate(&gb, gui_data->sample_rate);
GB_set_color_correction_mode(&gb, get_color_correction_mode());
GB_set_highpass_filter_mode(&gb, get_highpass_mode());
GB_set_rewind_length(&gb, config.rewind_duration);
GB_set_update_input_hint_callback(&gb, handle_events);
GB_apu_set_sample_callback(&gb, gb_audio_callback);
GB_set_input_callback(&gb, sync_console_input);
GB_set_async_input_callback(&gb, async_console_input);
GB_set_log_callback(&gb, console_log);
GB_set_boot_rom_load_callback(&gb, load_boot_rom);
if (get_display_border_mode() <= GB_BORDER_ALWAYS) {
GB_set_border_mode(&gb, get_display_border_mode());
}
update_window_geometry();
}
static void load_boot_rom(GB_gameboy_t *gb, GB_boot_rom_t type) {
GError *error = NULL;
char *boot_rom_path = NULL;
GBytes *boot_rom_f = NULL;
const guchar *boot_rom_data;
gsize boot_rom_size;
static const char *const names[] = {
[GB_BOOT_ROM_DMG0] = "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_CGB0] = "cgb0_boot.bin",
[GB_BOOT_ROM_CGB] = "cgb_boot.bin",
[GB_BOOT_ROM_AGB] = "agb_boot.bin",
};
const char *const boot_rom_name = names[type];
if (gui_data.cli_options.boot_rom_path != NULL) {
g_message("[CLI override] Trying to load boot ROM from %s", gui_data.cli_options.boot_rom_path);
if (GB_load_boot_rom(gb, gui_data.cli_options.boot_rom_path)) {
g_warning("Falling back to boot ROM from config");
goto config_boot_rom;
}
}
else { config_boot_rom:
if (config.boot_rom_path != NULL && g_strcmp0(config.boot_rom_path, "other") != 0 && g_strcmp0(config.boot_rom_path, "auto") != 0) {
boot_rom_path = g_build_filename(config.boot_rom_path, boot_rom_name, NULL);
g_message("Trying to load boot ROM from %s", boot_rom_path);
if (GB_load_boot_rom(gb, boot_rom_path)) {
g_free(boot_rom_path);
g_warning("Falling back to internal boot ROM");
goto internal_boot_rom;
}
g_free(boot_rom_path);
}
else { internal_boot_rom:
boot_rom_path = g_build_filename(RESOURCE_PREFIX "bootroms/", boot_rom_name, NULL);
boot_rom_f = g_resources_lookup_data(boot_rom_path, G_RESOURCE_LOOKUP_FLAGS_NONE, &error);
g_message("Loading internal boot ROM: %s", boot_rom_path);
g_free(boot_rom_path);
if (boot_rom_f == NULL) {
g_warning("Failed to load internal boot ROM: %s", boot_rom_path);
g_error_free(error);
exit(EXIT_FAILURE);
}
boot_rom_data = g_bytes_get_data(boot_rom_f, &boot_rom_size);
GB_load_boot_rom_from_buffer(gb, boot_rom_data, boot_rom_size);
g_bytes_unref(boot_rom_f);
}
}
}
static void stop(GuiData *gui_data) {
if (!running) return;
SDL_PauseAudioDevice(device_id, 1);
GB_debugger_set_disabled(&gb, true);
if (GB_debugger_is_stopped(&gb)) {
// [self interruptDebugInputRead];
}
stopping = true;
running = false;
while (stopping);
GB_debugger_set_disabled(&gb, false);
gui_data->stopped = true;
}
static void reset(GuiData *gui_data) {
g_debug("Reset: %d == %d", get_model(), gui_data->prev_model);
GB_model_t current_model = get_model();
if (gui_data->prev_model == -1 || gui_data->prev_model == current_model) {
GB_reset(&gb);
}
else {
GB_switch_model_and_reset(&gb, current_model);
}
GB_set_palette(&gb, get_monochrome_palette());
gui_data->prev_model = get_model();
GtkRequisition minimum_size;
GtkRequisition natural_size;
gtk_widget_get_preferred_size(GTK_WIDGET(main_window), &minimum_size, &natural_size);
// Check SGB -> non-SGB and non-SGB to SGB transitions
if (GB_get_screen_width(&gb) != minimum_size.width || GB_get_screen_height(&gb) != minimum_size.height) {
update_window_geometry();
}
bool success = false;
if (gui_data->file) {
char *path = g_file_get_path(gui_data->file);
if (GB_load_rom(&gb, path) == 0) {
success = true;
}
else {
g_warning("Failed to load ROM: %s", path);
}
g_free(path);
}
action_set_enabled(main_application, "close", success);
action_entries_set_enabled(emulation_entries, G_N_ELEMENTS(emulation_entries), success);
}
static void start(GuiData *gui_data) {
running = true;
gui_data->stopped = false;
SDL_ClearQueuedAudio(device_id);
SDL_PauseAudioDevice(device_id, 0);
/* Run emulation */
while (running) {
if (rewind_paused) {
handle_events(&gb);
g_usleep(G_USEC_PER_SEC / 8);
}
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);
}
}
stopping = false;
}