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bsnes/Cocoa/GBView.m

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Objective-C
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#import <IOKit/pwr_mgt/IOPMLib.h>
#import "GBView.h"
#import "GBViewGL.h"
#import "GBViewMetal.h"
#import "GBButtons.h"
#import "NSString+StringForKey.h"
#define JOYSTICK_HIGH 0x4000
#define JOYSTICK_LOW 0x3800
@implementation GBView
{
uint32_t *image_buffers[3];
unsigned char current_buffer;
BOOL mouse_hidden;
NSTrackingArea *tracking_area;
BOOL _mouseHidingEnabled;
bool axisActive[2];
bool underclockKeyDown;
double clockMultiplier;
double analogClockMultiplier;
bool analogClockMultiplierValid;
NSEventModifierFlags previousModifiers;
JOYController *lastController;
GB_frame_blending_mode_t _frameBlendingMode;
}
+ (instancetype)alloc
{
return [self allocWithZone:NULL];
}
+ (instancetype)allocWithZone:(struct _NSZone *)zone
{
if (self == [GBView class]) {
if ([GBViewMetal isSupported]) {
return [GBViewMetal allocWithZone: zone];
}
return [GBViewGL allocWithZone: zone];
}
return [super allocWithZone:zone];
}
- (void) createInternalView
{
assert(false && "createInternalView must not be inherited");
}
- (void) _init
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(ratioKeepingChanged) name:@"GBAspectChanged" object:nil];
tracking_area = [ [NSTrackingArea alloc] initWithRect:(NSRect){}
options:NSTrackingMouseEnteredAndExited | NSTrackingActiveAlways | NSTrackingInVisibleRect
owner:self
userInfo:nil];
[self addTrackingArea:tracking_area];
clockMultiplier = 1.0;
[self createInternalView];
[self addSubview:self.internalView];
self.internalView.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable;
[JOYController registerListener:self];
}
- (void)screenSizeChanged
{
if (image_buffers[0]) free(image_buffers[0]);
if (image_buffers[1]) free(image_buffers[1]);
if (image_buffers[2]) 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] = calloc(1, buffer_size);
image_buffers[1] = calloc(1, buffer_size);
image_buffers[2] = calloc(1, buffer_size);
dispatch_async(dispatch_get_main_queue(), ^{
[self setFrame:self.superview.frame];
});
}
- (void) ratioKeepingChanged
{
[self setFrame:self.superview.frame];
}
- (void) setFrameBlendingMode:(GB_frame_blending_mode_t)frameBlendingMode
{
_frameBlendingMode = frameBlendingMode;
[self setNeedsDisplay:YES];
}
- (GB_frame_blending_mode_t)frameBlendingMode
{
if (_frameBlendingMode == GB_FRAME_BLENDING_MODE_ACCURATE) {
if (!_gb || GB_is_sgb(_gb)) {
return GB_FRAME_BLENDING_MODE_SIMPLE;
}
return GB_is_odd_frame(_gb)? GB_FRAME_BLENDING_MODE_ACCURATE_ODD : GB_FRAME_BLENDING_MODE_ACCURATE_EVEN;
}
return _frameBlendingMode;
}
- (unsigned char) numberOfBuffers
{
return _frameBlendingMode? 3 : 2;
}
- (void)dealloc
{
free(image_buffers[0]);
free(image_buffers[1]);
free(image_buffers[2]);
if (mouse_hidden) {
mouse_hidden = false;
[NSCursor unhide];
}
[[NSNotificationCenter defaultCenter] removeObserver:self];
[lastController setRumbleAmplitude:0];
[JOYController unregisterListener:self];
}
- (instancetype)initWithCoder:(NSCoder *)coder
{
if (!(self = [super initWithCoder:coder])) {
return self;
}
[self _init];
return self;
}
- (instancetype)initWithFrame:(NSRect)frameRect
{
if (!(self = [super initWithFrame:frameRect])) {
return self;
}
[self _init];
return self;
}
- (void)setFrame:(NSRect)frame
{
frame = self.superview.frame;
if (_gb && ![[NSUserDefaults standardUserDefaults] boolForKey:@"GBAspectRatioUnkept"]) {
double ratio = frame.size.width / frame.size.height;
double width = GB_get_screen_width(_gb);
double height = GB_get_screen_height(_gb);
if (ratio >= width / height) {
double new_width = round(frame.size.height / height * width);
frame.origin.x = floor((frame.size.width - new_width) / 2);
frame.size.width = new_width;
frame.origin.y = 0;
}
else {
double new_height = round(frame.size.width / width * height);
frame.origin.y = floor((frame.size.height - new_height) / 2);
frame.size.height = new_height;
frame.origin.x = 0;
}
}
[super setFrame:frame];
}
- (void) flip
{
if (analogClockMultiplierValid && [[NSUserDefaults standardUserDefaults] boolForKey:@"GBAnalogControls"]) {
GB_set_clock_multiplier(_gb, analogClockMultiplier);
if (analogClockMultiplier == 1.0) {
analogClockMultiplierValid = false;
}
}
else {
if (underclockKeyDown && clockMultiplier > 0.5) {
clockMultiplier -= 1.0/16;
GB_set_clock_multiplier(_gb, clockMultiplier);
}
if (!underclockKeyDown && clockMultiplier < 1.0) {
clockMultiplier += 1.0/16;
GB_set_clock_multiplier(_gb, clockMultiplier);
}
}
current_buffer = (current_buffer + 1) % self.numberOfBuffers;
}
- (uint32_t *) pixels
{
return image_buffers[(current_buffer + 1) % self.numberOfBuffers];
}
-(void)keyDown:(NSEvent *)theEvent
{
unsigned short keyCode = theEvent.keyCode;
bool handled = false;
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
unsigned player_count = GB_get_player_count(_gb);
for (unsigned player = 0; player < player_count; player++) {
for (GBButton button = 0; button < GBButtonCount; button++) {
NSNumber *key = [defaults valueForKey:button_to_preference_name(button, player)];
if (!key) continue;
if (key.unsignedShortValue == keyCode) {
handled = true;
switch (button) {
case GBTurbo:
GB_set_turbo_mode(_gb, true, self.isRewinding);
analogClockMultiplierValid = false;
break;
case GBRewind:
self.isRewinding = true;
GB_set_turbo_mode(_gb, false, false);
break;
case GBUnderclock:
underclockKeyDown = true;
analogClockMultiplierValid = false;
break;
default:
GB_set_key_state_for_player(_gb, (GB_key_t)button, player, true);
break;
}
}
}
}
if (!handled && [theEvent type] != NSEventTypeFlagsChanged) {
[super keyDown:theEvent];
}
}
-(void)keyUp:(NSEvent *)theEvent
{
unsigned short keyCode = theEvent.keyCode;
bool handled = false;
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
unsigned player_count = GB_get_player_count(_gb);
for (unsigned player = 0; player < player_count; player++) {
for (GBButton button = 0; button < GBButtonCount; button++) {
NSNumber *key = [defaults valueForKey:button_to_preference_name(button, player)];
if (!key) continue;
if (key.unsignedShortValue == keyCode) {
handled = true;
switch (button) {
case GBTurbo:
GB_set_turbo_mode(_gb, false, false);
analogClockMultiplierValid = false;
break;
case GBRewind:
self.isRewinding = false;
break;
case GBUnderclock:
underclockKeyDown = false;
analogClockMultiplierValid = false;
break;
default:
GB_set_key_state_for_player(_gb, (GB_key_t)button, player, false);
break;
}
}
}
}
if (!handled && [theEvent type] != NSEventTypeFlagsChanged) {
[super keyUp:theEvent];
}
}
- (void)setRumble:(bool)on
{
[lastController setRumbleAmplitude:(double)on];
}
- (void)controller:(JOYController *)controller movedAxis:(JOYAxis *)axis
{
if (![self.window isMainWindow]) return;
NSDictionary *mapping = [[NSUserDefaults standardUserDefaults] dictionaryForKey:@"JoyKitInstanceMapping"][controller.uniqueID];
if (!mapping) {
mapping = [[NSUserDefaults standardUserDefaults] dictionaryForKey:@"JoyKitNameMapping"][controller.deviceName];
}
if ((axis.usage == JOYAxisUsageR1 && !mapping) ||
axis.uniqueID == [mapping[@"AnalogUnderclock"] unsignedLongValue]){
analogClockMultiplier = MIN(MAX(1 - axis.value + 0.2, 1.0 / 3), 1.0);
analogClockMultiplierValid = true;
}
else if ((axis.usage == JOYAxisUsageL1 && !mapping) ||
axis.uniqueID == [mapping[@"AnalogTurbo"] unsignedLongValue]){
analogClockMultiplier = MIN(MAX(axis.value * 3 + 0.8, 1.0), 3.0);
analogClockMultiplierValid = true;
}
}
- (void)controller:(JOYController *)controller buttonChangedState:(JOYButton *)button
{
if (![self.window isMainWindow]) return;
if (controller != lastController) {
[lastController setRumbleAmplitude:0];
lastController = controller;
}
unsigned player_count = GB_get_player_count(_gb);
IOPMAssertionID assertionID;
IOPMAssertionDeclareUserActivity(CFSTR(""), kIOPMUserActiveLocal, &assertionID);
for (unsigned player = 0; player < player_count; player++) {
NSString *preferred_joypad = [[[NSUserDefaults standardUserDefaults] dictionaryForKey:@"JoyKitDefaultControllers"]
objectForKey:n2s(player)];
if (player_count != 1 && // Single player, accpet inputs from all joypads
!(player == 0 && !preferred_joypad) && // Multiplayer, but player 1 has no joypad configured, so it takes inputs from all joypads
![preferred_joypad isEqualToString:controller.uniqueID]) {
continue;
}
[controller setPlayerLEDs:1 << player];
NSDictionary *mapping = [[NSUserDefaults standardUserDefaults] dictionaryForKey:@"JoyKitInstanceMapping"][controller.uniqueID];
if (!mapping) {
mapping = [[NSUserDefaults standardUserDefaults] dictionaryForKey:@"JoyKitNameMapping"][controller.deviceName];
}
JOYButtonUsage usage = ((JOYButtonUsage)[mapping[n2s(button.uniqueID)] unsignedIntValue]) ?: button.usage;
if (!mapping && usage >= JOYButtonUsageGeneric0) {
usage = (const JOYButtonUsage[]){JOYButtonUsageY, JOYButtonUsageA, JOYButtonUsageB, JOYButtonUsageX}[(usage - JOYButtonUsageGeneric0) & 3];
}
switch (usage) {
case JOYButtonUsageNone: break;
case JOYButtonUsageA: GB_set_key_state_for_player(_gb, GB_KEY_A, player, button.isPressed); break;
case JOYButtonUsageB: GB_set_key_state_for_player(_gb, GB_KEY_B, player, button.isPressed); break;
case JOYButtonUsageC: break;
case JOYButtonUsageStart:
case JOYButtonUsageX: GB_set_key_state_for_player(_gb, GB_KEY_START, player, button.isPressed); break;
case JOYButtonUsageSelect:
case JOYButtonUsageY: GB_set_key_state_for_player(_gb, GB_KEY_SELECT, player, button.isPressed); break;
case JOYButtonUsageR2:
case JOYButtonUsageL2:
case JOYButtonUsageZ: {
self.isRewinding = button.isPressed;
if (button.isPressed) {
GB_set_turbo_mode(_gb, false, false);
}
break;
}
case JOYButtonUsageL1: GB_set_turbo_mode(_gb, button.isPressed, button.isPressed && self.isRewinding); break;
case JOYButtonUsageR1: underclockKeyDown = button.isPressed; break;
case JOYButtonUsageDPadLeft: GB_set_key_state_for_player(_gb, GB_KEY_LEFT, player, button.isPressed); break;
case JOYButtonUsageDPadRight: GB_set_key_state_for_player(_gb, GB_KEY_RIGHT, player, button.isPressed); break;
case JOYButtonUsageDPadUp: GB_set_key_state_for_player(_gb, GB_KEY_UP, player, button.isPressed); break;
case JOYButtonUsageDPadDown: GB_set_key_state_for_player(_gb, GB_KEY_DOWN, player, button.isPressed); break;
default:
break;
}
}
}
- (BOOL)acceptsFirstResponder
{
return YES;
}
- (void)mouseEntered:(NSEvent *)theEvent
{
if (!mouse_hidden) {
mouse_hidden = true;
if (_mouseHidingEnabled) {
[NSCursor hide];
}
}
[super mouseEntered:theEvent];
}
- (void)mouseExited:(NSEvent *)theEvent
{
if (mouse_hidden) {
mouse_hidden = false;
if (_mouseHidingEnabled) {
[NSCursor unhide];
}
}
[super mouseExited:theEvent];
}
- (void)setMouseHidingEnabled:(BOOL)mouseHidingEnabled
{
if (mouseHidingEnabled == _mouseHidingEnabled) return;
_mouseHidingEnabled = mouseHidingEnabled;
if (mouse_hidden && _mouseHidingEnabled) {
[NSCursor hide];
}
if (mouse_hidden && !_mouseHidingEnabled) {
[NSCursor unhide];
}
}
- (BOOL)isMouseHidingEnabled
{
return _mouseHidingEnabled;
}
- (void) flagsChanged:(NSEvent *)event
{
if (event.modifierFlags > previousModifiers) {
[self keyDown:event];
}
else {
[self keyUp:event];
}
previousModifiers = event.modifierFlags;
}
- (uint32_t *)currentBuffer
{
return image_buffers[current_buffer];
}
- (uint32_t *)previousBuffer
{
return image_buffers[(current_buffer + 2) % self.numberOfBuffers];
}
@end
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