SameBoy/Cocoa/GBView.m

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#import <OpenGL/gl.h>
#import <Carbon/Carbon.h>
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#import "GBView.h"
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#import "GBButtons.h"
#import "NSString+StringForKey.h"
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@implementation GBView
{
uint32_t *image_buffers[3];
unsigned char current_buffer;
}
- (void) awakeFromNib
{
NSOpenGLPixelFormatAttribute attrs[] =
{
NSOpenGLPFAOpenGLProfile,
NSOpenGLProfileVersion3_2Core,
0
};
NSOpenGLPixelFormat *pf = [[NSOpenGLPixelFormat alloc] initWithAttributes:attrs] ;
if (!pf)
{
NSLog(@"No OpenGL pixel format");
}
NSOpenGLContext* context = [[NSOpenGLContext alloc] initWithFormat:pf shareContext:nil] ;
[self setPixelFormat:pf];
[self setOpenGLContext:context];
}
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- (void) _init
{
image_buffers[0] = malloc(160 * 144 * 4);
image_buffers[1] = malloc(160 * 144 * 4);
image_buffers[2] = malloc(160 * 144 * 4);
_shouldBlendFrameWithPrevious = 1;
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(filterChanged) name:@"GBFilterChanged" object:nil];
}
- (void) filterChanged
{
[self setNeedsDisplay:YES];
self.shader = nil;
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}
- (void) setShouldBlendFrameWithPrevious:(BOOL)shouldBlendFrameWithPrevious
{
_shouldBlendFrameWithPrevious = shouldBlendFrameWithPrevious;
[self setNeedsDisplay:YES];
}
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- (unsigned char) numberOfBuffers
{
return _shouldBlendFrameWithPrevious? 3 : 2;
}
- (void)dealloc
{
free(image_buffers[0]);
free(image_buffers[1]);
free(image_buffers[2]);
[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
- (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)drawRect:(NSRect)dirtyRect {
if (!self.shader) {
self.shader = [[GBShader alloc] initWithName:[[NSUserDefaults standardUserDefaults] objectForKey:@"GBFilter"]];
}
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double scale = self.window.backingScaleFactor;
glViewport(0, 0, self.bounds.size.width * scale, self.bounds.size.height * scale);
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if (_shouldBlendFrameWithPrevious) {
[self.shader renderBitmap:image_buffers[current_buffer]
previous:image_buffers[(current_buffer + 2) % self.numberOfBuffers]
inSize:self.bounds.size
scale:scale];
}
else {
[self.shader renderBitmap:image_buffers[current_buffer]
previous:NULL
inSize:self.bounds.size
scale:scale];
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}
glFlush();
}
- (void) flip
{
current_buffer = (current_buffer + 1) % self.numberOfBuffers;
[self setNeedsDisplay:YES];
}
- (uint32_t *) pixels
{
return image_buffers[(current_buffer + 1) % self.numberOfBuffers];
}
-(void)keyDown:(NSEvent *)theEvent
{
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bool handled = false;
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
for (GBButton i = 0; i < GBButtonCount; i++) {
if ([[defaults stringForKey:button_to_preference_name(i)] isEqualToString:theEvent.charactersIgnoringModifiers]) {
handled = true;
switch (i) {
case GBTurbo:
_gb->turbo = true;
break;
default:
_gb->keys[i] = true;
break;
}
}
}
if (!handled) {
[super keyDown:theEvent];
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}
}
-(void)keyUp:(NSEvent *)theEvent
{
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bool handled = false;
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
for (GBButton i = 0; i < GBButtonCount; i++) {
if ([[defaults stringForKey:button_to_preference_name(i)] isEqualToString:theEvent.charactersIgnoringModifiers]) {
handled = true;
switch (i) {
case GBTurbo:
_gb->turbo = false;
break;
default:
_gb->keys[i] = false;
break;
}
}
}
if (!handled) {
[super keyUp:theEvent];
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}
}
- (BOOL)becomeFirstResponder
{
/* Non-Roman keyboard layouts breaks user input. */
TSMDocumentID document = TSMGetActiveDocument();
CFArrayRef inpu_sources = TISCreateASCIICapableInputSourceList();
TSMSetDocumentProperty(document, kTSMDocumentEnabledInputSourcesPropertyTag,
sizeof(CFArrayRef), &inpu_sources);
CFRelease(inpu_sources);
return [super becomeFirstResponder];
}
- (BOOL)resignFirstResponder
{
TSMDocumentID document = TSMGetActiveDocument();
TSMRemoveDocumentProperty(document, kTSMDocumentEnabledInputSourcesPropertyTag);
return [super resignFirstResponder];
}
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- (BOOL)acceptsFirstResponder
{
return YES;
}
@end