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118 lines
2.7 KiB
C++
118 lines
2.7 KiB
C++
//
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// Video.cpp
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// Clock Signal
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//
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// Created by Thomas Harte on 14/04/2018.
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// Copyright 2018 Thomas Harte. All rights reserved.
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//
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#include "Video.hpp"
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using namespace AppleII::Video;
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VideoBase::VideoBase() :
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crt_(new Outputs::CRT::CRT(910, 1, Outputs::CRT::DisplayType::NTSC60, 1)) {
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// Set a composite sampling function that assumes one byte per pixel input, and
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// accepts any non-zero value as being fully on, zero being fully off.
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crt_->set_composite_sampling_function(
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"float composite_sample(usampler2D sampler, vec2 coordinate, vec2 icoordinate, float phase, float amplitude)"
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"{"
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"return clamp(texture(sampler, coordinate).r, 0.0, 0.7);"
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"}");
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// Show only the centre 75% of the TV frame.
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crt_->set_video_signal(Outputs::CRT::VideoSignal::Composite);
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crt_->set_visible_area(Outputs::CRT::Rect(0.115f, 0.122f, 0.77f, 0.77f));
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crt_->set_immediate_default_phase(0.0f);
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}
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Outputs::CRT::CRT *VideoBase::get_crt() {
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return crt_.get();
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}
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/*
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Rote setters and getters.
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*/
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void VideoBase::set_alternative_character_set(bool alternative_character_set) {
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alternative_character_set_ = alternative_character_set;
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}
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bool VideoBase::get_alternative_character_set() {
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return alternative_character_set_;
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}
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void VideoBase::set_80_columns(bool columns_80) {
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columns_80_ = columns_80;
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}
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bool VideoBase::get_80_columns() {
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return columns_80_;
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}
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void VideoBase::set_80_store(bool store_80) {
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store_80_ = store_80;
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}
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bool VideoBase::get_80_store() {
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return store_80_;
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}
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void VideoBase::set_page2(bool page2) {
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page2_ = page2;
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}
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bool VideoBase::get_page2() {
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return page2_;
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}
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void VideoBase::set_text(bool text) {
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text_ = text;
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}
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bool VideoBase::get_text() {
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return text_;
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}
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void VideoBase::set_mixed(bool mixed) {
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mixed_ = mixed;
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}
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bool VideoBase::get_mixed() {
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return mixed_;
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}
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void VideoBase::set_high_resolution(bool high_resolution) {
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high_resolution_ = high_resolution;
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}
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bool VideoBase::get_high_resolution() {
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return high_resolution_;
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}
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void VideoBase::set_double_high_resolution(bool double_high_resolution) {
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double_high_resolution_ = double_high_resolution;
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}
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bool VideoBase::get_double_high_resolution() {
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return double_high_resolution_;
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}
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void VideoBase::set_character_rom(const std::vector<uint8_t> &character_rom) {
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character_rom_ = character_rom;
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// Flip all character contents based on the second line of the $ graphic.
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if(character_rom_[0x121] == 0x3c || character_rom_[0x122] == 0x3c) {
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for(auto &graphic : character_rom_) {
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graphic =
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((graphic & 0x01) ? 0x40 : 0x00) |
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((graphic & 0x02) ? 0x20 : 0x00) |
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((graphic & 0x04) ? 0x10 : 0x00) |
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((graphic & 0x08) ? 0x08 : 0x00) |
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((graphic & 0x10) ? 0x04 : 0x00) |
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((graphic & 0x20) ? 0x02 : 0x00) |
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((graphic & 0x40) ? 0x01 : 0x00);
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}
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}
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}
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