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107 lines
2.5 KiB
Plaintext
107 lines
2.5 KiB
Plaintext
//
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// Atari2600.m
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// ElectrEm
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//
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// Created by Thomas Harte on 14/07/2015.
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// Copyright © 2015 Thomas Harte. All rights reserved.
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//
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#import "Atari2600.h"
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#import "Atari2600.hpp"
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#import <OpenGL/gl.h>
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@interface CSAtari2600 (Callbacks)
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- (void)crtDidEndFrame:(Outputs::CRTFrame *)frame;
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@end
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struct Atari2600CRTDelegate: public Outputs::CRT::CRTDelegate {
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CSAtari2600 *atari;
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void crt_did_end_frame(Outputs::CRT *crt, Outputs::CRTFrame *frame) { [atari crtDidEndFrame:frame]; }
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};
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@implementation CSAtari2600 {
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Atari2600::Machine _atari2600;
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Atari2600CRTDelegate _crtDelegate;
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dispatch_queue_t _serialDispatchQueue;
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Outputs::CRTFrame *_queuedFrame;
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}
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- (void)crtDidEndFrame:(Outputs::CRTFrame *)frame {
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dispatch_async(dispatch_get_main_queue(), ^{
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if(_queuedFrame) {
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dispatch_async(_serialDispatchQueue, ^{
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_atari2600.get_crt()->return_frame();
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});
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}
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_queuedFrame = frame;
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[self.delegate atari2600NeedsRedraw:self];
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});
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}
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- (void)draw {
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if(_queuedFrame)
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{
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glClearColor(1.0, 0.0, 0.0, 1.0);
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glClear(GL_COLOR_BUFFER_BIT);
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/* printf("\n\n===\n\n");
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int c = 0;
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for(int run = 0; run < _queuedFrame->number_of_runs; run++)
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{
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char character = ' ';
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switch(_queuedFrame->runs[run].type)
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{
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case Outputs::CRTRun::Type::Sync: character = '<'; break;
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case Outputs::CRTRun::Type::Level: character = '_'; break;
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case Outputs::CRTRun::Type::Data: character = '-'; break;
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case Outputs::CRTRun::Type::Blank: character = ' '; break;
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}
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if(_queuedFrame->runs[run].start_point.dst_x < 1.0 / 224.0)
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{
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printf("\n[%0.2f]: ", _queuedFrame->runs[run].start_point.dst_y);
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c++;
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}
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printf("(%0.2f): ", _queuedFrame->runs[run].start_point.dst_x);
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float length = fabsf(_queuedFrame->runs[run].end_point.dst_x - _queuedFrame->runs[run].start_point.dst_x);
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int iLength = (int)(length * 64.0);
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for(int c = 0; c < iLength; c++)
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{
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putc(character, stdout);
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}
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}
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printf("\n\n[%d]\n\n", c);*/
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}
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}
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- (void)runForNumberOfCycles:(int)cycles {
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dispatch_async(_serialDispatchQueue, ^{
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_atari2600.run_for_cycles(cycles);
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});
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}
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- (void)setROM:(NSData *)rom {
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dispatch_async(_serialDispatchQueue, ^{
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_atari2600.set_rom(rom.length, (const uint8_t *)rom.bytes);
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});
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}
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- (instancetype)init {
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self = [super init];
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if (self) {
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_crtDelegate.atari = self;
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_atari2600.get_crt()->set_delegate(&_crtDelegate);
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_serialDispatchQueue = dispatch_queue_create("Atari 2600 queue", DISPATCH_QUEUE_SERIAL);
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}
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return self;
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}
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@end
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