mirror of
https://github.com/TomHarte/CLK.git
synced 2024-07-07 08:28:57 +00:00
d97a073d1b
They all just as the CRT, as all are currently based on the CRT. Which doesn't currently know the total clock rate it would need to in order properly to scale the answer to the question. Further thought coming.
62 lines
1.4 KiB
C++
62 lines
1.4 KiB
C++
//
|
|
// Video.hpp
|
|
// Clock Signal
|
|
//
|
|
// Created by Thomas Harte on 12/10/2016.
|
|
// Copyright 2016 Thomas Harte. All rights reserved.
|
|
//
|
|
|
|
#ifndef Machines_Oric_Video_hpp
|
|
#define Machines_Oric_Video_hpp
|
|
|
|
#include "../../Outputs/CRT/CRT.hpp"
|
|
#include "../../ClockReceiver/ClockReceiver.hpp"
|
|
|
|
#include <cstdint>
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
namespace Oric {
|
|
|
|
class VideoOutput {
|
|
public:
|
|
VideoOutput(uint8_t *memory);
|
|
void set_colour_rom(const std::vector<uint8_t> &colour_rom);
|
|
|
|
void run_for(const Cycles cycles);
|
|
|
|
void set_scan_target(Outputs::Display::ScanTarget *scan_target);
|
|
void set_display_type(Outputs::Display::DisplayType display_type);
|
|
Outputs::Display::ScanStatus get_scan_status() const;
|
|
|
|
private:
|
|
uint8_t *ram_;
|
|
Outputs::CRT::CRT crt_;
|
|
|
|
// Counters and limits
|
|
int counter_ = 0, frame_counter_ = 0;
|
|
int v_sync_start_position_, v_sync_end_position_, counter_period_;
|
|
|
|
// Output target and device
|
|
uint8_t *rgb_pixel_target_;
|
|
uint32_t *composite_pixel_target_;
|
|
uint32_t colour_forms_[8];
|
|
Outputs::Display::InputDataType data_type_;
|
|
|
|
// Registers
|
|
uint8_t ink_, paper_;
|
|
|
|
int character_set_base_address_ = 0xb400;
|
|
inline void set_character_set_base_address();
|
|
|
|
bool is_graphics_mode_ = false;
|
|
bool next_frame_is_sixty_hertz_ = false;
|
|
bool use_alternative_character_set_;
|
|
bool use_double_height_characters_;
|
|
bool blink_text_;
|
|
};
|
|
|
|
}
|
|
|
|
#endif /* Video_hpp */
|