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SDL port: GUI-based error reporting, added help dialog (? on macOS, F1 on everything else)

This commit is contained in:
Lior Halphon 2017-05-25 23:28:48 +03:00
parent 4d5dc6a30e
commit ece1a11a23
2 changed files with 121 additions and 44 deletions
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13
Core/gb.c
View File

@ -151,7 +151,10 @@ void GB_free(GB_gameboy_t *gb)
int GB_load_boot_rom(GB_gameboy_t *gb, const char *path)
{
FILE *f = fopen(path, "rb");
if (!f) return errno;
if (!f) {
GB_log(gb, "Could not open boot ROM: %s.\n", strerror(errno));
return errno;
}
fread(gb->boot_rom, sizeof(gb->boot_rom), 1, f);
fclose(f);
return 0;
@ -160,7 +163,10 @@ int GB_load_boot_rom(GB_gameboy_t *gb, const char *path)
int GB_load_rom(GB_gameboy_t *gb, const char *path)
{
FILE *f = fopen(path, "rb");
if (!f) return errno;
if (!f) {
GB_log(gb, "Could not open ROM: %s.\n", strerror(errno));
return errno;
}
fseek(f, 0, SEEK_END);
gb->rom_size = (ftell(f) + 0x3FFF) & ~0x3FFF; /* Round to bank */
/* And then round to a power of two */
@ -202,6 +208,7 @@ int GB_save_state(GB_gameboy_t *gb, const char *path)
{
FILE *f = fopen(path, "wb");
if (!f) {
GB_log(gb, "Could not open save state: %s.\n", strerror(errno));
return errno;
}
@ -269,6 +276,7 @@ int GB_load_state(GB_gameboy_t *gb, const char *path)
FILE *f = fopen(path, "rb");
if (!f) {
GB_log(gb, "Could not open save state: %s.\n", strerror(errno));
return errno;
}
@ -345,6 +353,7 @@ int GB_save_battery(GB_gameboy_t *gb, const char *path)
if (gb->mbc_ram_size == 0 && !gb->cartridge_type->has_rtc) return 0; /* Claims to have battery, but has no RAM or RTC */
FILE *f = fopen(path, "wb");
if (!f) {
GB_log(gb, "Could not open save state: %s.\n", strerror(errno));
return errno;
}

152
SDL/main.c
View File

@ -12,6 +12,36 @@
#define AUDIO_FREQUENCY 44100
#endif
#ifdef __APPLE__
#define MODIFIER_NAME "Cmd"
#else
#define MODIFIER_NAME "Ctrl"
#endif
static const char help[] =
"Drop a GB or GBC ROM file to play.\n"
"\n"
"Controls:\n"
" D-Pad: Arrow Keys\n"
" A: X\n"
" B: Z\n"
" Start: Enter\n"
" Select: Backspace\n"
"\n"
"Keyboard Shortcuts: \n"
" Restart: " MODIFIER_NAME "+R\n"
" Pause: " MODIFIER_NAME "+P\n"
" Turbo: Space\n"
#ifdef __APPLE__
" Mute/Unmute: " MODIFIER_NAME "+Shift+M\n"
#else
" Mute/Unmute: " MODIFIER_NAME "+M\n"
#endif
" Save state: " MODIFIER_NAME "+Number (0-9)\n"
" Load state: " MODIFIER_NAME "+Shift+Number (0-9)\n"
" Cycle between DMG/CGB emulation: " MODIFIER_NAME "+T\n"
" Cycle scaling modes: Tab"
;
GB_gameboy_t gb;
static bool dmg = false;
@ -28,6 +58,45 @@ static SDL_Texture *texture = NULL;
static SDL_PixelFormat *pixel_format = NULL;
static SDL_AudioSpec want_aspec, have_aspec;
static char *captured_log = NULL;
static void log_capture_callback(GB_gameboy_t *gb, const char *string, GB_log_attributes attributes)
{
size_t current_len = strlen(captured_log);
size_t len_to_add = strlen(string);
captured_log = realloc(captured_log, current_len + len_to_add + 1);
memcpy(captured_log + current_len, string, len_to_add);
captured_log[current_len + len_to_add] = 0;
}
static void start_capturing_logs(void)
{
if (captured_log != NULL) {
free(captured_log);
}
captured_log = malloc(1);
captured_log[0] = 0;
GB_set_log_callback(&gb, log_capture_callback);
}
static const char *end_capturing_logs(bool show_popup, bool should_exit)
{
GB_set_log_callback(&gb, NULL);
if (captured_log[0] == 0) {
free(captured_log);
captured_log = NULL;
}
else {
if (show_popup) {
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error", captured_log, window);
}
if (should_exit) {
exit(1);
}
}
return captured_log;
}
static enum {
GB_SDL_NO_COMMAND,
GB_SDL_SAVE_STATE_COMMAND,
@ -86,13 +155,10 @@ static void cycle_scaling(void)
static void handle_events(GB_gameboy_t *gb)
{
static bool ctrl = false;
static bool shift = false;
#ifdef __APPLE__
static bool cmd = false;
#define MODIFIER cmd
#define MODIFIER KMOD_GUI
#else
#define MODIFIER ctrl
#define MODIFIER KMOD_CTRL
#endif
SDL_Event event;
while (SDL_PollEvent(&event))
@ -121,36 +187,35 @@ static void handle_events(GB_gameboy_t *gb)
case SDL_KEYDOWN:
switch (event.key.keysym.sym) {
case SDLK_c:
if (ctrl && event.type == SDL_KEYDOWN) {
ctrl = false;
if (event.type == SDL_KEYDOWN && (event.key.keysym.mod & KMOD_CTRL)) {
GB_debugger_break(gb);
}
break;
case SDLK_r:
if (MODIFIER) {
if (event.key.keysym.mod & MODIFIER) {
pending_command = GB_SDL_RESET_COMMAND;
}
break;
case SDLK_t:
if (MODIFIER) {
if (event.key.keysym.mod & MODIFIER) {
pending_command = GB_SDL_TOGGLE_MODEL_COMMAND;
}
break;
case SDLK_p:
if (MODIFIER) {
if (event.key.keysym.mod & MODIFIER) {
paused = !paused;
}
break;
case SDLK_m:
if (MODIFIER) {
if (event.key.keysym.mod & MODIFIER) {
#ifdef __APPLE__
// Can't override CMD+M (Minimize) in SDL
if (!shift) {
if (!(event.key.keysym.mod & KMOD_SHIFT)) {
break;
}
#endif
@ -161,14 +226,26 @@ static void handle_events(GB_gameboy_t *gb)
case SDLK_TAB:
cycle_scaling();
break;
#ifndef __APPLE__
case SDLK_F1:
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Help", help, window);
break;
#else
case SDLK_SLASH:
if (!(event.key.keysym.sym && (event.key.keysym.mod & KMOD_SHIFT))) {
break;
}
case SDLK_QUESTION:
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Help", help, window);
#endif
default:
/* Save states */
if (event.key.keysym.sym >= SDLK_0 && event.key.keysym.sym <= SDLK_9) {
if (MODIFIER) {
if (event.key.keysym.mod & MODIFIER) {
command_parameter = event.key.keysym.sym - SDLK_0;
if (shift) {
if (event.key.keysym.mod & KMOD_SHIFT) {
pending_command = GB_SDL_LOAD_STATE_COMMAND;
}
else {
@ -207,20 +284,6 @@ static void handle_events(GB_gameboy_t *gb)
case SDLK_SPACE:
GB_set_turbo_mode(gb, event.type == SDL_KEYDOWN, false);
break;
case SDLK_LCTRL:
case SDLK_RCTRL:
ctrl = event.type == SDL_KEYDOWN;
break;
case SDLK_LSHIFT:
case SDLK_RSHIFT:
shift = event.type == SDL_KEYDOWN;
break;
#ifdef __APPLE__
case SDLK_LGUI:
case SDLK_RGUI:
cmd = event.type == SDL_KEYDOWN;
break;
#endif
}
break;
default:
@ -274,12 +337,14 @@ static bool handle_pending_command(void)
save_extension[2] += command_parameter;
replace_extension(filename, strlen(filename), save_path, save_extension);
start_capturing_logs();
if (pending_command == GB_SDL_LOAD_STATE_COMMAND) {
GB_load_state(&gb, save_path);
}
else {
GB_save_state(&gb, save_path);
}
end_capturing_logs(true, false);
return false;
}
@ -320,23 +385,18 @@ restart:
GB_set_sample_rate(&gb, have_aspec.freq);
}
start_capturing_logs();
if (dmg) {
if (GB_load_boot_rom(&gb, executable_relative_path("dmg_boot.bin"))) {
perror("Failed to load boot ROM");
exit(1);
}
GB_load_boot_rom(&gb, executable_relative_path("dmg_boot.bin"));
}
else {
if (GB_load_boot_rom(&gb, executable_relative_path("cgb_boot.bin"))) {
perror("Failed to load boot ROM");
exit(1);
}
GB_load_boot_rom(&gb, executable_relative_path("cgb_boot.bin"));
}
end_capturing_logs(true, true);
if (GB_load_rom(&gb, filename)) {
perror("Failed to load ROM");
exit(1);
}
start_capturing_logs();
GB_load_rom(&gb, filename);
end_capturing_logs(true, true);
size_t path_length = strlen(filename);
@ -437,8 +497,7 @@ usage:
SDL_RenderCopy(renderer, texture, NULL, NULL);
SDL_RenderPresent(renderer);
SDL_FreeSurface(drop_converted);
SDL_FreeSurface(drop_backround)
;
SDL_FreeSurface(drop_backround);
SDL_Event event;
while (SDL_WaitEvent(&event))
{
@ -464,6 +523,15 @@ usage:
if (event.key.keysym.sym == SDLK_TAB) {
cycle_scaling();
}
#ifndef __APPLE__
else if (event.key.keysym.sym == SDLK_F1) {
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Help", help, window);
}
#else
else if (event.key.keysym.sym == SDLK_QUESTION || (event.key.keysym.sym && (event.key.keysym.mod & KMOD_SHIFT))) {
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Help", help, window);
}
#endif
break;
}
}