mirror of
https://github.com/TomHarte/CLK.git
synced 2024-07-16 22:28:57 +00:00
35 lines
1.0 KiB
C++
35 lines
1.0 KiB
C++
//
|
|
// Video.cpp
|
|
// Clock Signal
|
|
//
|
|
// Created by Thomas Harte on 03/05/2019.
|
|
// Copyright © 2019 Thomas Harte. All rights reserved.
|
|
//
|
|
|
|
#include "Video.hpp"
|
|
|
|
using namespace Apple::Macintosh;
|
|
|
|
// Re: CRT timings, see the Apple Guide to the Macintosh Hardware Family,
|
|
// bottom of page 400:
|
|
//
|
|
// "For each scan line, 512 pixels are drawn on the screen ...
|
|
// The horizontal blanking interval takes the time of an additional 192 pixels"
|
|
//
|
|
// And, at the top of 401:
|
|
//
|
|
// "The visible portion of a full-screen display consists of 342 horizontal scan lines...
|
|
// During the vertical blanking interval, the turned-off beam ... traces out an additional 28 scan lines,"
|
|
//
|
|
Video::Video(uint16_t *ram) :
|
|
crt_(704, 1, 370, Outputs::Display::ColourSpace::YIQ, 1, 1, 6, false, Outputs::Display::InputDataType::Luminance1) {
|
|
}
|
|
|
|
void Video::set_scan_target(Outputs::Display::ScanTarget *scan_target) {
|
|
crt_.set_scan_target(scan_target);
|
|
}
|
|
|
|
/*
|
|
Video: $1A700 and the alternate buffer starts at $12700; for a 512K Macintosh, add $60000 to these numbers.
|
|
*/
|