Merge branch 'sdl2'

This commit is contained in:
Lior Halphon 2017-05-27 12:30:25 +03:00
commit 096bd8ba94
17 changed files with 590 additions and 658 deletions

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@ -1,5 +1,4 @@
#include <stdbool.h>
#include <unistd.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>

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@ -2,12 +2,13 @@
#include <stdbool.h>
#include <stdlib.h>
#include <stddef.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <stdarg.h>
#include <sys/time.h>
#ifndef _WIN32
#include <unistd.h>
#include <sys/select.h>
#endif
#include "gb.h"
void GB_attributed_logv(GB_gameboy_t *gb, GB_log_attributes attributes, const char *fmt, va_list args)
@ -34,7 +35,7 @@ void GB_attributed_log(GB_gameboy_t *gb, GB_log_attributes attributes, const cha
va_end(args);
}
void GB_log(GB_gameboy_t *gb,const char *fmt, ...)
void GB_log(GB_gameboy_t *gb, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
@ -150,7 +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;
@ -159,7 +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 */
@ -201,6 +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;
}
@ -268,6 +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;
}
@ -344,6 +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;
}
@ -651,12 +661,14 @@ void GB_switch_model_and_reset(GB_gameboy_t *gb, bool is_cgb)
void *GB_get_direct_access(GB_gameboy_t *gb, GB_direct_access_t access, size_t *size, uint16_t *bank)
{
/* Set size and bank to dummy pointers if not set */
size_t dummy_size;
uint16_t dummy_bank;
if (!size) {
size = alloca(sizeof(size));
size = &dummy_size;
}
if (!bank) {
bank = alloca(sizeof(bank));
bank = &dummy_bank;
}

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@ -1,7 +1,4 @@
#include "gb.h"
#ifdef _WIN32
typedef intptr_t ssize_t;
#endif
static size_t GB_map_find_symbol_index(GB_symbol_map_t *map, uint16_t addr)
{
@ -106,4 +103,4 @@ const GB_symbol_t *GB_reversed_map_find_symbol(GB_reversed_symbol_map_t *map, co
}
return NULL;
}
}

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@ -43,10 +43,10 @@ endif
# Set compilation and linkage flags based on target, platform and configuration
CFLAGS += -Werror -Wall -std=gnu11 -ICore -D_GNU_SOURCE -DVERSION="$(VERSION)" -I. -D_USE_MATH_DEFINES
SDL_LDFLAGS := -lSDL
SDL_LDFLAGS := -lSDL2
ifeq ($(PLATFORM),windows32)
CFLAGS += -IWindows
LDFLAGS += -lmsvcrt -lSDLmain -Wl,/MANIFESTFILE:NUL
LDFLAGS += -lmsvcrt -lSDL2main -Wl,/MANIFESTFILE:NUL
else
LDFLAGS += -lc -lm
endif
@ -56,19 +56,16 @@ SYSROOT := $(shell xcodebuild -sdk macosx -version Path 2> /dev/null)
CFLAGS += -F/Library/Frameworks
OCFLAGS += -x objective-c -fobjc-arc -Wno-deprecated-declarations -isysroot $(SYSROOT) -mmacosx-version-min=10.9
LDFLAGS += -framework AppKit -framework PreferencePanes -framework Carbon -framework QuartzCore
SDL_LDFLAGS := -F/Library/Frameworks -framework SDL
SDL_LDFLAGS := -F/Library/Frameworks -framework SDL2
endif
CFLAGS += -Wno-deprecated-declarations
ifeq ($(PLATFORM),windows32)
CFLAGS += -Wno-deprecated-declarations # Seems like Microsoft deprecated every single LIBC function
LDFLAGS += -Wl,/NODEFAULTLIB:libcmt
LDFLAGS += -Wl,/NODEFAULTLIB:libcmt.lib
endif
ifeq ($(CONF),debug)
CFLAGS += -g
ifeq ($(PLATFORM),windows32)
LDFLAGS += -Wl,/debug
endif
else ifeq ($(CONF), release)
CFLAGS += -O3 -DNDEBUG
ifneq ($(PLATFORM),windows32)
@ -82,16 +79,16 @@ endif
# Define our targets
ifeq ($(PLATFORM),windows32)
SDL_TARGET := $(BIN)/sdl/sameboy.exe $(BIN)/sdl/sameboy_debugger.exe $(BIN)/sdl/SDL.dll
SDL_TARGET := $(BIN)/SDL/sameboy.exe $(BIN)/SDL/sameboy_debugger.exe $(BIN)/SDL/SDL2.dll
TESTER_TARGET := $(BIN)/tester/sameboy_tester.exe
else
SDL_TARGET := $(BIN)/sdl/sameboy
SDL_TARGET := $(BIN)/SDL/sameboy
TESTER_TARGET := $(BIN)/tester/sameboy_tester
endif
cocoa: $(BIN)/SameBoy.app
quicklook: $(BIN)/SameBoy.qlgenerator
sdl: $(SDL_TARGET) $(BIN)/sdl/dmg_boot.bin $(BIN)/sdl/cgb_boot.bin $(BIN)/sdl/LICENSE $(BIN)/sdl/registers.sym
sdl: $(SDL_TARGET) $(BIN)/SDL/dmg_boot.bin $(BIN)/SDL/cgb_boot.bin $(BIN)/SDL/LICENSE $(BIN)/SDL/registers.sym $(BIN)/SDL/drop.bmp
bootroms: $(BIN)/BootROMs/cgb_boot.bin $(BIN)/BootROMs/dmg_boot.bin
tester: $(TESTER_TARGET) $(BIN)/tester/dmg_boot.bin $(BIN)/tester/cgb_boot.bin
all: cocoa sdl tester
@ -105,7 +102,6 @@ TESTER_SOURCES := $(shell ls Tester/*.c)
ifeq ($(PLATFORM),Darwin)
COCOA_SOURCES := $(shell ls Cocoa/*.m) $(shell ls HexFiend/*.m)
QUICKLOOK_SOURCES := $(shell ls QuickLook/*.m) $(shell ls QuickLook/*.c)
SDL_SOURCES += $(shell ls SDL/*.m)
endif
CORE_OBJECTS := $(patsubst %,$(OBJ)/%.o,$(CORE_SOURCES))
@ -213,7 +209,7 @@ $(BIN)/SameBoy.qlgenerator/Contents/Resources/cgb_boot_fast.bin: $(BIN)/BootROMs
# SDL Port
# Unix versions build only one binary
$(BIN)/sdl/sameboy: $(CORE_OBJECTS) $(SDL_OBJECTS)
$(BIN)/SDL/sameboy: $(CORE_OBJECTS) $(SDL_OBJECTS)
-@$(MKDIR) -p $(dir $@)
$(CC) $^ -o $@ $(LDFLAGS) $(SDL_LDFLAGS)
ifeq ($(CONF), release)
@ -221,11 +217,11 @@ ifeq ($(CONF), release)
endif
# Windows version builds two, one with a conole and one without it
$(BIN)/sdl/sameboy.exe: $(CORE_OBJECTS) $(SDL_OBJECTS) $(OBJ)/Windows/resources.o
$(BIN)/SDL/sameboy.exe: $(CORE_OBJECTS) $(SDL_OBJECTS) $(OBJ)/Windows/resources.o
-@$(MKDIR) -p $(dir $@)
$(CC) $^ -o $@ $(LDFLAGS) $(SDL_LDFLAGS) -Wl,/subsystem:windows
$(BIN)/sdl/sameboy_debugger.exe: $(CORE_OBJECTS) $(SDL_OBJECTS) $(OBJ)/Windows/resources.o
$(BIN)/SDL/sameboy_debugger.exe: $(CORE_OBJECTS) $(SDL_OBJECTS) $(OBJ)/Windows/resources.o
-@$(MKDIR) -p $(dir $@)
$(CC) $^ -o $@ $(LDFLAGS) $(SDL_LDFLAGS) -Wl,/subsystem:console
@ -236,11 +232,11 @@ $(OBJ)/%.res: %.rc
%.o: %.res
cvtres /OUT:"$@" $^
# We must provide SDL.dll with the Windows port. This is an AWFUL HACK to find it.
# We must provide SDL2.dll with the Windows port. This is an AWFUL HACK to find it.
SPACE :=
SPACE +=
$(BIN)/sdl/SDL.dll:
@$(eval POTENTIAL_MATCHES := $(subst @@@," ",$(patsubst %,%/SDL.dll,$(subst ;,$(SPACE),$(subst $(SPACE),@@@,$(lib))))))
$(BIN)/SDL/SDL2.dll:
@$(eval POTENTIAL_MATCHES := $(subst @@@," ",$(patsubst %,%/SDL2.dll,$(subst ;,$(SPACE),$(subst $(SPACE),@@@,$(lib))))))
@$(eval MATCH := $(shell ls $(POTENTIAL_MATCHES) 2> NUL | head -n 1))
cp "$(MATCH)" $@
@ -257,7 +253,7 @@ $(BIN)/tester/sameboy_tester.exe: $(CORE_OBJECTS) $(SDL_OBJECTS)
-@$(MKDIR) -p $(dir $@)
$(CC) $^ -o $@ $(LDFLAGS) -Wl,/subsystem:console
$(BIN)/sdl/%.bin $(BIN)/tester/%.bin: $(BOOTROMS_DIR)/%.bin
$(BIN)/SDL/%.bin $(BIN)/tester/%.bin: $(BOOTROMS_DIR)/%.bin
-@$(MKDIR) -p $(dir $@)
cp -f $^ $@
@ -265,10 +261,13 @@ $(BIN)/SameBoy.app/Contents/Resources/%.bin: $(BOOTROMS_DIR)/%.bin
-@$(MKDIR) -p $(dir $@)
cp -f $^ $@
$(BIN)/sdl/LICENSE: LICENSE
$(BIN)/SDL/LICENSE: LICENSE
cp -f $^ $@
$(BIN)/sdl/registers.sym: Misc/registers.sym
$(BIN)/SDL/registers.sym: Misc/registers.sym
cp -f $^ $@
$(BIN)/SDL/drop.bmp: SDL/drop.bmp
cp -f $^ $@
# Boot ROMs

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@ -1,16 +0,0 @@
/* SDLMain.m - main entry point for our Cocoa-ized SDL app
Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
Non-NIB-Code & other changes: Max Horn <max@quendi.de>
Feel free to customize this file to suit your needs
*/
#ifndef _SDLMain_h_
#define _SDLMain_h_
#import <Cocoa/Cocoa.h>
@interface SDLMain : NSObject<NSApplicationDelegate>
@end
#endif /* _SDLMain_h_ */

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@ -1,382 +0,0 @@
/* SDLMain.m - main entry point for our Cocoa-ized SDL app
Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
Non-NIB-Code & other changes: Max Horn <max@quendi.de>
Feel free to customize this file to suit your needs
*/
#include <SDL/SDL.h>
#include "SDLMain.h"
#include <sys/param.h> /* for MAXPATHLEN */
#include <unistd.h>
#import <objc/runtime.h>
/* For some reaon, Apple removed setAppleMenu from the headers in 10.4,
but the method still is there and works. To avoid warnings, we declare
it ourselves here. */
@interface NSApplication(SDL_Missing_Methods)
- (void)setAppleMenu:(NSMenu *)menu;
@end
/* Use this flag to determine whether we use SDLMain.nib or not */
#define SDL_USE_NIB_FILE 0
/* Use this flag to determine whether we use CPS (docking) or not */
#define SDL_USE_CPS 1
#ifdef SDL_USE_CPS
/* Portions of CPS.h */
typedef struct CPSProcessSerNum
{
UInt32 lo;
UInt32 hi;
} CPSProcessSerNum;
extern OSErr CPSGetCurrentProcess( CPSProcessSerNum *psn);
extern OSErr CPSEnableForegroundOperation( CPSProcessSerNum *psn, UInt32 _arg2, UInt32 _arg3, UInt32 _arg4, UInt32 _arg5);
extern OSErr CPSSetFrontProcess( CPSProcessSerNum *psn);
#endif /* SDL_USE_CPS */
static int gArgc;
static char **gArgv;
static BOOL gFinderLaunch;
static BOOL gCalledAppMainline = FALSE;
static NSString *getApplicationName(void)
{
const NSDictionary *dict;
NSString *appName = 0;
/* Determine the application name */
dict = (__bridge const NSDictionary *)CFBundleGetInfoDictionary(CFBundleGetMainBundle());
if (dict)
appName = [dict objectForKey: @"CFBundleName"];
if (![appName length])
appName = [[NSProcessInfo processInfo] processName];
return appName;
}
#if SDL_USE_NIB_FILE
/* A helper category for NSString */
@interface NSString (ReplaceSubString)
- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
@end
#endif
@interface NSApplication (SDLApplication)
@end
@implementation NSApplication (SDLApplication)
/* Invoked from the Quit menu item */
- (void)_terminate:(id)sender
{
/* Post a SDL_QUIT event */
SDL_Event event;
event.type = SDL_QUIT;
SDL_PushEvent(&event);
/* Call "super" */
[self _terminate:sender];
}
/* Use swizzling to avoid warning and undocumented Obj C runtime behavior. Didn't feel like rewriting SDLMain for this. */
+ (void) load
{
method_exchangeImplementations(class_getInstanceMethod(self, @selector(terminate:)), class_getInstanceMethod(self, @selector(_terminate:)));
}
@end
/* The main class of the application, the application's delegate */
@implementation SDLMain
/* Set the working directory to the .app's parent directory */
- (void) setupWorkingDirectory:(BOOL)shouldChdir
{
if (shouldChdir)
{
char parentdir[MAXPATHLEN];
CFURLRef url = CFBundleCopyBundleURL(CFBundleGetMainBundle());
CFURLRef url2 = CFURLCreateCopyDeletingLastPathComponent(0, url);
if (CFURLGetFileSystemRepresentation(url2, 1, (UInt8 *)parentdir, MAXPATHLEN)) {
chdir(parentdir); /* chdir to the binary app's parent */
}
CFRelease(url);
CFRelease(url2);
}
}
#if SDL_USE_NIB_FILE
/* Fix menu to contain the real app name instead of "SDL App" */
- (void)fixMenu:(NSMenu *)aMenu withAppName:(NSString *)appName
{
NSRange aRange;
NSEnumerator *enumerator;
NSMenuItem *menuItem;
aRange = [[aMenu title] rangeOfString:@"SDL App"];
if (aRange.length != 0)
[aMenu setTitle: [[aMenu title] stringByReplacingRange:aRange with:appName]];
enumerator = [[aMenu itemArray] objectEnumerator];
while ((menuItem = [enumerator nextObject]))
{
aRange = [[menuItem title] rangeOfString:@"SDL App"];
if (aRange.length != 0)
[menuItem setTitle: [[menuItem title] stringByReplacingRange:aRange with:appName]];
if ([menuItem hasSubmenu])
[self fixMenu:[menuItem submenu] withAppName:appName];
}
}
#else
static void setApplicationMenu(void)
{
/* warning: this code is very odd */
NSMenu *appleMenu;
NSMenuItem *menuItem;
NSString *title;
NSString *appName;
appName = getApplicationName();
appleMenu = [[NSMenu alloc] initWithTitle:@""];
/* Add menu items */
title = [@"About " stringByAppendingString:appName];
[appleMenu addItemWithTitle:title action:@selector(orderFrontStandardAboutPanel:) keyEquivalent:@""];
[appleMenu addItem:[NSMenuItem separatorItem]];
title = [@"Hide " stringByAppendingString:appName];
[appleMenu addItemWithTitle:title action:@selector(hide:) keyEquivalent:@"h"];
menuItem = (NSMenuItem *)[appleMenu addItemWithTitle:@"Hide Others" action:@selector(hideOtherApplications:) keyEquivalent:@"h"];
[menuItem setKeyEquivalentModifierMask:(NSAlternateKeyMask|NSCommandKeyMask)];
[appleMenu addItemWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""];
[appleMenu addItem:[NSMenuItem separatorItem]];
title = [@"Quit " stringByAppendingString:appName];
[appleMenu addItemWithTitle:title action:@selector(terminate:) keyEquivalent:@"q"];
/* Put menu into the menubar */
menuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
[menuItem setSubmenu:appleMenu];
[[NSApp mainMenu] addItem:menuItem];
/* Tell the application object that this is now the application menu */
[NSApp setAppleMenu:appleMenu];
}
/* Create a window menu */
static void setupWindowMenu(void)
{
NSMenu *windowMenu;
NSMenuItem *windowMenuItem;
NSMenuItem *menuItem;
windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
/* "Minimize" item */
menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
[windowMenu addItem:menuItem];
/* Put menu into the menubar */
windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
[windowMenuItem setSubmenu:windowMenu];
[[NSApp mainMenu] addItem:windowMenuItem];
/* Tell the application object that this is now the window menu */
[NSApp setWindowsMenu:windowMenu];
/* Finally give up our references to the objects */
}
/* Replacement for NSApplicationMain */
static void CustomApplicationMain (int argc, char **argv)
{
SDLMain *sdlMain;
/* Ensure the application object is initialised */
[NSApplication sharedApplication];
#ifdef SDL_USE_CPS
{
CPSProcessSerNum PSN;
/* Tell the dock about us */
if (!CPSGetCurrentProcess(&PSN))
if (!CPSEnableForegroundOperation(&PSN,0x03,0x3C,0x2C,0x1103))
if (!CPSSetFrontProcess(&PSN))
[NSApplication sharedApplication];
}
#endif /* SDL_USE_CPS */
/* Set up the menubar */
[NSApp setMainMenu:[[NSMenu alloc] init]];
setApplicationMenu();
setupWindowMenu();
/* Create SDLMain and make it the app delegate */
sdlMain = [[SDLMain alloc] init];
[NSApp setDelegate:sdlMain];
/* Start the main event loop */
[NSApp run];
}
#endif
/*
* Catch document open requests...this lets us notice files when the app
* was launched by double-clicking a document, or when a document was
* dragged/dropped on the app's icon. You need to have a
* CFBundleDocumentsType section in your Info.plist to get this message,
* apparently.
*
* Files are added to gArgv, so to the app, they'll look like command line
* arguments. Previously, apps launched from the finder had nothing but
* an argv[0].
*
* This message may be received multiple times to open several docs on launch.
*
* This message is ignored once the app's mainline has been called.
*/
- (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename
{
const char *temparg;
size_t arglen;
char *arg;
char **newargv;
if (!gFinderLaunch) /* MacOS is passing command line args. */
return FALSE;
if (gCalledAppMainline) /* app has started, ignore this document. */
return FALSE;
temparg = [filename UTF8String];
arglen = SDL_strlen(temparg) + 1;
arg = (char *) SDL_malloc(arglen);
if (arg == NULL)
return FALSE;
newargv = (char **) realloc(gArgv, sizeof (char *) * (gArgc + 2));
if (newargv == NULL)
{
SDL_free(arg);
return FALSE;
}
gArgv = newargv;
SDL_strlcpy(arg, temparg, arglen);
gArgv[gArgc++] = arg;
gArgv[gArgc] = NULL;
return TRUE;
}
/* Called when the internal event loop has just started running */
- (void) applicationDidFinishLaunching: (NSNotification *) note
{
int status;
/* Set the working directory to the .app's parent directory */
[self setupWorkingDirectory:gFinderLaunch];
#if SDL_USE_NIB_FILE
/* Set the main menu to contain the real app name instead of "SDL App" */
[self fixMenu:[NSApp mainMenu] withAppName:getApplicationName()];
#endif
/* Hand off to main application code */
gCalledAppMainline = TRUE;
status = SDL_main (gArgc, gArgv);
/* We're done, thank you for playing */
exit(status);
}
@end
@implementation NSString (ReplaceSubString)
- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString
{
unsigned int bufferSize;
unsigned int selfLen = [self length];
unsigned int aStringLen = [aString length];
unichar *buffer;
NSRange localRange;
NSString *result;
bufferSize = selfLen + aStringLen - aRange.length;
buffer = (unichar *)NSAllocateMemoryPages(bufferSize*sizeof(unichar));
/* Get first part into buffer */
localRange.location = 0;
localRange.length = aRange.location;
[self getCharacters:buffer range:localRange];
/* Get middle part into buffer */
localRange.location = 0;
localRange.length = aStringLen;
[aString getCharacters:(buffer+aRange.location) range:localRange];
/* Get last part into buffer */
localRange.location = aRange.location + aRange.length;
localRange.length = selfLen - localRange.location;
[self getCharacters:(buffer+aRange.location+aStringLen) range:localRange];
/* Build output string */
result = [NSString stringWithCharacters:buffer length:bufferSize];
NSDeallocateMemoryPages(buffer, bufferSize);
return result;
}
@end
void cocoa_disable_filtering(void) {
CGContextSetInterpolationQuality([[NSGraphicsContext currentContext] CGContext], kCGInterpolationNone);
}
#ifdef main
# undef main
#endif
/* Main entry point to executable - should *not* be SDL_main! */
int main (int argc, char **argv)
{
/* Copy the arguments into a global variable */
/* This is passed if we are launched by double-clicking */
if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
gArgv = (char **) SDL_malloc(sizeof (char *) * 2);
gArgv[0] = argv[0];
gArgv[1] = NULL;
gArgc = 1;
gFinderLaunch = YES;
} else {
int i;
gArgc = argc;
gArgv = (char **) SDL_malloc(sizeof (char *) * (argc+1));
for (i = 0; i <= argc; i++)
gArgv[i] = argv[i];
gFinderLaunch = NO;
}
#if SDL_USE_NIB_FILE
NSApplicationMain (argc, argv);
#else
CustomApplicationMain (argc, argv);
#endif
return 0;
}

BIN
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After

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@ -1,42 +1,261 @@
#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>
#include <time.h>
#include <assert.h>
#include <signal.h>
#include <SDL/SDL.h>
#include <SDL2/SDL.h>
#include "gb.h"
#include "utils.h"
#ifndef _WIN32
#define AUDIO_FREQUENCY 96000
#else
/* Windows (well, at least my VM) can't handle 96KHz sound well :( */
#define AUDIO_FREQUENCY 44100
#include <direct.h>
#include <windows.h>
#define snprintf _snprintf
#endif
#include "gb.h"
static bool running = false;
static char *filename;
static void replace_extension(const char *src, size_t length, char *dest, const char *ext);
GB_gameboy_t gb;
static void GB_update_keys_status(GB_gameboy_t *gb)
{
static bool ctrl = false;
static bool shift = false;
#ifdef __APPLE__
static bool cmd = false;
#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;
static bool paused = false;
static uint32_t pixels[160*144];
static char *filename = NULL;
static bool should_free_filename = false;
static char *battery_save_path_ptr;
static SDL_Window *window = NULL;
static SDL_Renderer *renderer = NULL;
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,
GB_SDL_LOAD_STATE_COMMAND,
GB_SDL_RESET_COMMAND,
GB_SDL_NEW_FILE_COMMAND,
GB_SDL_TOGGLE_MODEL_COMMAND,
} pending_command;
static enum {
GB_SDL_SCALING_ENTIRE_WINDOW,
GB_SDL_SCALING_KEEP_RATIO,
GB_SDL_SCALING_INTEGER_FACTOR,
GB_SDL_SCALING_MAX,
} scaling_mode = GB_SDL_SCALING_INTEGER_FACTOR;
static unsigned command_parameter;
static void update_viewport(void)
{
int win_width, win_height;
SDL_GetWindowSize(window, &win_width, &win_height);
double x_factor = win_width / 160.0;
double y_factor = win_height / 144.0;
if (scaling_mode == GB_SDL_SCALING_INTEGER_FACTOR) {
x_factor = (int)(x_factor);
y_factor = (int)(y_factor);
}
if (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 * 160;
unsigned new_height = y_factor * 144;
SDL_Rect rect = (SDL_Rect){(win_width - new_width) / 2, (win_height - new_height) /2,
new_width, new_height};
SDL_RenderSetViewport(renderer, &rect);
}
static void cycle_scaling(void)
{
scaling_mode++;
scaling_mode %= GB_SDL_SCALING_MAX;
update_viewport();
SDL_RenderClear(renderer);
SDL_RenderCopy(renderer, texture, NULL, NULL);
SDL_RenderPresent(renderer);
}
static void handle_events(GB_gameboy_t *gb)
{
#ifdef __APPLE__
#define MODIFIER KMOD_GUI
#else
#define MODIFIER KMOD_CTRL
#endif
SDL_Event event;
while (SDL_PollEvent(&event))
{
switch( event.type ){
switch (event.type) {
case SDL_QUIT:
running = false;
GB_save_battery(gb, battery_save_path_ptr);
exit(0);
case SDL_DROPFILE: {
if (should_free_filename) {
SDL_free(filename);
}
filename = event.drop.file;
should_free_filename = true;
pending_command = GB_SDL_NEW_FILE_COMMAND;
break;
}
case SDL_WINDOWEVENT: {
if (event.window.event == SDL_WINDOWEVENT_RESIZED) {
update_viewport();
}
}
case SDL_KEYDOWN:
case SDL_KEYUP:
switch (event.key.keysym.sym) {
case SDLK_c:
if (event.type == SDL_KEYDOWN && (event.key.keysym.mod & KMOD_CTRL)) {
GB_debugger_break(gb);
}
break;
case SDLK_r:
if (event.key.keysym.mod & MODIFIER) {
pending_command = GB_SDL_RESET_COMMAND;
}
break;
case SDLK_t:
if (event.key.keysym.mod & MODIFIER) {
pending_command = GB_SDL_TOGGLE_MODEL_COMMAND;
}
break;
case SDLK_p:
if (event.key.keysym.mod & MODIFIER) {
paused = !paused;
}
break;
case SDLK_m:
if (event.key.keysym.mod & MODIFIER) {
#ifdef __APPLE__
// Can't override CMD+M (Minimize) in SDL
if (!(event.key.keysym.mod & KMOD_SHIFT)) {
break;
}
#endif
SDL_PauseAudio(SDL_GetAudioStatus() == SDL_AUDIO_PLAYING? true : false);
}
break;
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 (event.key.keysym.mod & MODIFIER) {
command_parameter = event.key.keysym.sym - SDLK_0;
if (event.key.keysym.mod & KMOD_SHIFT) {
pending_command = GB_SDL_LOAD_STATE_COMMAND;
}
else {
pending_command = GB_SDL_SAVE_STATE_COMMAND;
}
}
}
break;
}
case SDL_KEYUP: // Fallthrough
switch (event.key.keysym.sym) {
case SDLK_RIGHT:
GB_set_key_state(gb, GB_KEY_RIGHT, event.type == SDL_KEYDOWN);
@ -65,51 +284,6 @@ static void GB_update_keys_status(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_LMETA:
case SDLK_RMETA:
cmd = event.type == SDL_KEYDOWN;
break;
#endif
case SDLK_c:
if (ctrl && event.type == SDL_KEYDOWN) {
ctrl = false;
GB_debugger_break(gb);
}
break;
default:
/* Save states */
if (event.key.keysym.sym >= SDLK_0 && event.key.keysym.sym <= SDLK_9) {
#ifdef __APPLE__
if (cmd) {
#else
if (ctrl) {
#endif
char save_path[strlen(filename) + 4];
char save_extension[] =".s0";
save_extension[2] += event.key.keysym.sym - SDLK_0;
replace_extension(filename, strlen(filename), save_path, save_extension);
if (shift) {
GB_load_state(gb, save_path);
}
else {
GB_save_state(gb, save_path);
}
}
}
break;
}
break;
default:
@ -120,68 +294,17 @@ static void GB_update_keys_status(GB_gameboy_t *gb)
static void vblank(GB_gameboy_t *gb)
{
SDL_Surface *screen = GB_get_user_data(gb);
SDL_Flip(screen);
GB_update_keys_status(gb);
GB_set_pixels_output(gb, screen->pixels);
SDL_UpdateTexture(texture, NULL, pixels, 160 * sizeof (uint32_t));
SDL_RenderClear(renderer);
SDL_RenderCopy(renderer, texture, NULL, NULL);
SDL_RenderPresent(renderer);
handle_events(gb);
}
#ifdef __APPLE__
#include <mach-o/dyld.h>
#endif
static const char *executable_folder(void)
{
static char path[1024] = {0,};
if (path[0]) {
return path;
}
/* Ugly unportable code! :( */
#ifdef __APPLE__
unsigned int length = sizeof(path) - 1;
_NSGetExecutablePath(&path[0], &length);
#else
#ifdef __linux__
ssize_t length = readlink("/proc/self/exe", &path[0], sizeof(path) - 1);
assert (length != -1);
#else
#ifdef _WIN32
HMODULE hModule = GetModuleHandle(NULL);
GetModuleFileName(hModule, path, sizeof(path) - 1);
#else
/* No OS-specific way, assume running from CWD */
getcwd(&path[0], sizeof(path) - 1);
return path;
#endif
#endif
#endif
size_t pos = strlen(path);
while (pos) {
pos--;
#ifdef _WIN32
if (path[pos] == '\\') {
#else
if (path[pos] == '/') {
#endif
path[pos] = 0;
break;
}
}
return path;
}
static char *executable_relative_path(const char *filename)
{
static char path[1024];
snprintf(path, sizeof(path), "%s/%s", executable_folder(), filename);
return path;
}
static SDL_Surface *screen = NULL;
static uint32_t rgb_encode(GB_gameboy_t *gb, uint8_t r, uint8_t g, uint8_t b)
{
return SDL_MapRGB(screen->format, r, g, b);
return SDL_MapRGB(pixel_format, r, g, b);
}
static void debugger_interrupt(int ignore)
@ -196,129 +319,230 @@ static void debugger_interrupt(int ignore)
static void audio_callback(void *gb, Uint8 *stream, int len)
{
GB_apu_copy_buffer(gb, (GB_sample_t *) stream, len / sizeof(GB_sample_t));
}
static void replace_extension(const char *src, size_t length, char *dest, const char *ext)
{
memcpy(dest, src, length);
dest[length] = 0;
/* Remove extension */
for (size_t i = length; i--;) {
if (dest[i] == '/') break;
if (dest[i] == '.') {
dest[i] = 0;
break;
}
}
/* Add new extension */
strcat(dest, ext);
}
#ifdef __APPLE__
extern void cocoa_disable_filtering(void);
#endif
int main(int argc, char **argv)
{
bool dmg = false;
#define str(x) #x
#define xstr(x) str(x)
fprintf(stderr, "SameBoy v" xstr(VERSION) "\n");
if (argc == 1 || argc > 3) {
usage:
fprintf(stderr, "Usage: %s [--dmg] rom\n", argv[0]);
exit(1);
}
if (argc == 3) {
if (strcmp(argv[1], "--dmg") == 0) {
dmg = true;
}
else {
goto usage;
}
}
if (dmg) {
GB_init(&gb);
if (GB_load_boot_rom(&gb, executable_relative_path("dmg_boot.bin"))) {
perror("Failed to load boot ROM");
exit(1);
}
if (GB_is_inited(gb)) {
GB_apu_copy_buffer(gb, (GB_sample_t *) stream, len / sizeof(GB_sample_t));
}
else {
GB_init_cgb(&gb);
if (GB_load_boot_rom(&gb, executable_relative_path("cgb_boot.bin"))) {
perror("Failed to load boot ROM");
exit(1);
}
memset(stream, 0, len);
}
}
static bool handle_pending_command(void)
{
switch (pending_command) {
case GB_SDL_LOAD_STATE_COMMAND:
case GB_SDL_SAVE_STATE_COMMAND: {
char save_path[strlen(filename) + 4];
char save_extension[] = ".s0";
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;
}
case GB_SDL_RESET_COMMAND:
GB_reset(&gb);
return false;
case GB_SDL_NO_COMMAND:
return false;
case GB_SDL_NEW_FILE_COMMAND:
return true;
case GB_SDL_TOGGLE_MODEL_COMMAND:
dmg = !dmg;
return true;
}
return false;
}
filename = argv[argc - 1];
if (GB_load_rom(&gb, filename)) {
perror("Failed to load ROM");
exit(1);
static void run(void)
{
restart:
if (GB_is_inited(&gb)) {
GB_switch_model_and_reset(&gb, !dmg);
}
else {
if (dmg) {
GB_init(&gb);
}
else {
GB_init_cgb(&gb);
}
GB_set_vblank_callback(&gb, (GB_vblank_callback_t) vblank);
GB_set_pixels_output(&gb, pixels);
GB_set_rgb_encode_callback(&gb, rgb_encode);
GB_set_sample_rate(&gb, have_aspec.freq);
}
signal(SIGINT, debugger_interrupt);
SDL_Init( SDL_INIT_EVERYTHING );
screen = SDL_SetVideoMode(160, 144, 32, SDL_SWSURFACE );
SDL_WM_SetCaption("SameBoy v" xstr(VERSION), "SameBoy v" xstr(VERSION));
#ifdef __APPLE__
cocoa_disable_filtering();
#endif
/* Configure Screen */
SDL_LockSurface(screen);
GB_set_vblank_callback(&gb, (GB_vblank_callback_t) vblank);
GB_set_user_data(&gb, screen);
GB_set_pixels_output(&gb, screen->pixels);
GB_set_rgb_encode_callback(&gb, rgb_encode);
start_capturing_logs();
if (dmg) {
GB_load_boot_rom(&gb, executable_relative_path("dmg_boot.bin"));
}
else {
GB_load_boot_rom(&gb, executable_relative_path("cgb_boot.bin"));
}
end_capturing_logs(true, true);
start_capturing_logs();
GB_load_rom(&gb, filename);
end_capturing_logs(true, true);
size_t path_length = strlen(filename);
/* Configure battery */
char battery_save_path[path_length + 5]; /* At the worst case, size is strlen(path) + 4 bytes for .sav + NULL */
replace_extension(filename, path_length, battery_save_path, ".sav");
battery_save_path_ptr = battery_save_path;
GB_load_battery(&gb, battery_save_path);
/* Configure symbols */
GB_debugger_load_symbol_file(&gb, executable_relative_path("registers.sym"));
char symbols_path[path_length + 5];
replace_extension(filename, path_length, symbols_path, ".sym");
GB_debugger_load_symbol_file(&gb, symbols_path);
/* Run emulation */
while (true) {
if (paused) {
SDL_WaitEvent(NULL);
handle_events(&gb);
}
else {
GB_run(&gb);
}
/* These commands can't run in the handle_event function, because they're not safe in a vblank context. */
if (handle_pending_command()) {
pending_command = GB_SDL_NO_COMMAND;
goto restart;
}
pending_command = GB_SDL_NO_COMMAND;
}
}
int main(int argc, char **argv)
{
#define str(x) #x
#define xstr(x) str(x)
fprintf(stderr, "SameBoy v" xstr(VERSION) "\n");
if (argc > 3) {
usage:
fprintf(stderr, "Usage: %s [--dmg] [rom]\n", argv[0]);
exit(1);
}
for (unsigned i = 1; i < argc; i++) {
if (strcmp(argv[i], "--dmg") == 0) {
if (dmg) {
goto usage;
}
dmg = true;
}
else if (!filename) {
filename = argv[i];
}
else {
goto usage;
}
}
signal(SIGINT, debugger_interrupt);
SDL_Init( SDL_INIT_EVERYTHING );
window = SDL_CreateWindow("SameBoy v" xstr(VERSION), SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
160 * 2, 144 * 2, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
SDL_SetWindowMinimumSize(window, 160, 144);
renderer = SDL_CreateRenderer(window, -1, 0);
texture = SDL_CreateTexture(renderer, SDL_GetWindowPixelFormat(window), SDL_TEXTUREACCESS_STREAMING, 160, 144);
pixel_format = SDL_AllocFormat(SDL_GetWindowPixelFormat(window));
/* Configure Audio */
SDL_AudioSpec want, have;
SDL_memset(&want, 0, sizeof(want));
want.freq = AUDIO_FREQUENCY;
want.format = AUDIO_S16SYS;
want.channels = 2;
want.samples = 512;
want.callback = audio_callback;
want.userdata = &gb;
SDL_OpenAudio(&want, &have);
GB_set_sample_rate(&gb, AUDIO_FREQUENCY);
memset(&want_aspec, 0, sizeof(want_aspec));
want_aspec.freq = AUDIO_FREQUENCY;
want_aspec.format = AUDIO_S16SYS;
want_aspec.channels = 2;
#if SDL_COMPILEDVERSION == 2005 && defined(__APPLE__)
/* SDL 2.0.5 on macOS introduced a bug where certain combinations of buffer lengths and frequencies
fail to produce audio correctly. This bug was fixed 2.0.6. */
want_aspec.samples = 2048;
#else
want_aspec.samples = 512;
#endif
want_aspec.callback = audio_callback;
want_aspec.userdata = &gb;
SDL_OpenAudio(&want_aspec, &have_aspec);
/* Start Audio */
SDL_PauseAudio(0);
SDL_PauseAudio(false);
/* Run emulation */
running = true;
while (running) {
GB_run(&gb);
SDL_EventState(SDL_DROPFILE, SDL_ENABLE);
if (filename == NULL) {
/* Draw the "Drop file" screen */
SDL_Surface *drop_backround = SDL_LoadBMP(executable_relative_path("drop.bmp"));
SDL_Surface *drop_converted = SDL_ConvertSurface(drop_backround, pixel_format, 0);
SDL_LockSurface(drop_converted);
SDL_UpdateTexture(texture, NULL, drop_converted->pixels, drop_converted->pitch);
SDL_RenderClear(renderer);
SDL_RenderCopy(renderer, texture, NULL, NULL);
SDL_RenderPresent(renderer);
SDL_FreeSurface(drop_converted);
SDL_FreeSurface(drop_backround);
SDL_Event event;
while (SDL_WaitEvent(&event))
{
switch (event.type) {
case SDL_QUIT: {
exit(0);
}
case SDL_WINDOWEVENT: {
if (event.window.event == SDL_WINDOWEVENT_RESIZED) {
update_viewport();
SDL_RenderClear(renderer);
SDL_RenderCopy(renderer, texture, NULL, NULL);
SDL_RenderPresent(renderer);
}
break;
}
case SDL_DROPFILE: {
filename = event.drop.file;
should_free_filename = true;
goto start;
}
case SDL_KEYDOWN:
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;
}
}
}
SDL_CloseAudio();
GB_save_battery(&gb, battery_save_path);
start:
run(); // Never returns
return 0;
}

76
SDL/utils.c Normal file
View File

@ -0,0 +1,76 @@
#include <stdio.h>
#include <string.h>
#ifdef __APPLE__
#include <mach-o/dyld.h>
#endif
#ifdef _WIN32
#include <direct.h>
#include <windows.h>
#endif
#include "utils.h"
const char *executable_folder(void)
{
static char path[1024] = {0,};
if (path[0]) {
return path;
}
/* Ugly unportable code! :( */
#ifdef __APPLE__
unsigned int length = sizeof(path) - 1;
_NSGetExecutablePath(&path[0], &length);
#else
#ifdef __linux__
ssize_t length = readlink("/proc/self/exe", &path[0], sizeof(path) - 1);
assert (length != -1);
#else
#ifdef _WIN32
HMODULE hModule = GetModuleHandle(NULL);
GetModuleFileName(hModule, path, sizeof(path) - 1);
#else
/* No OS-specific way, assume running from CWD */
getcwd(&path[0], sizeof(path) - 1);
return path;
#endif
#endif
#endif
size_t pos = strlen(path);
while (pos) {
pos--;
#ifdef _WIN32
if (path[pos] == '\\') {
#else
if (path[pos] == '/') {
#endif
path[pos] = 0;
break;
}
}
return path;
}
char *executable_relative_path(const char *filename)
{
static char path[1024];
snprintf(path, sizeof(path), "%s/%s", executable_folder(), filename);
return path;
}
void replace_extension(const char *src, size_t length, char *dest, const char *ext)
{
memcpy(dest, src, length);
dest[length] = 0;
/* Remove extension */
for (size_t i = length; i--;) {
if (dest[i] == '/') break;
if (dest[i] == '.') {
dest[i] = 0;
break;
}
}
/* Add new extension */
strcat(dest, ext);
}

8
SDL/utils.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef utils_h
#define utils_h
const char *executable_folder(void);
char *executable_relative_path(const char *filename);
void replace_extension(const char *src, size_t length, char *dest, const char *ext);
#endif /* utils_h */

7
Windows/math.h Executable file
View File

@ -0,0 +1,7 @@
#pragma once
#include_next <math.h>
/* "Old" (Pre-2015) Windows headers/libc don't have round. */
static inline double round(double f)
{
return f >= 0? (int)(f + 0.5) : (int)(f - 0.5);
}

3
Windows/stdint.h Executable file
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@ -0,0 +1,3 @@
#pragma once
#include_next <stdint.h>
typedef intptr_t ssize_t;

View File

@ -66,4 +66,6 @@ static inline size_t getline(char **lineptr, size_t *n, FILE *stream) {
*n = size;
return p - bufptr - 1;
}
}
#define snprintf _snprintf

3
Windows/string.h Executable file
View File

@ -0,0 +1,3 @@
#pragma once
#include_next <string.h>
#define strdup _strdup

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