99 lines
2.4 KiB
D
99 lines
2.4 KiB
D
/+
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+ video/base.d
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+
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+ Copyright: 2007 Gerald Stocker
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+
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+ This file is part of Twoapple.
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+
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+ Twoapple is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ Twoapple is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with Twoapple; if not, write to the Free Software
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+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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+/
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module video.base;
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import memory;
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enum Mode
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{
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TEXT,
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LORES,
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HIRES
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}
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class ScannerBase
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{
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abstract ubyte* getData(uint vidClock);
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abstract ubyte* getData(uint line, uint col);
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abstract ubyte* getData80(uint vidClock);
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abstract ubyte* getData80(uint line, uint col);
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abstract bool shouldUpdate();
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abstract uint currentLine();
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abstract uint currentCol();
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abstract Mode getMode();
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abstract bool checkColorBurst();
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abstract ubyte floatingBus(ushort addr);
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abstract void page2SwitchOn();
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abstract void page2SwitchOff();
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abstract void hiresSwitchOn();
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abstract void hiresSwitchOff();
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}
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class PatternGenerator
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{
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ScannerBase scanner;
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abstract void initPatterns();
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abstract void initPatterns(ubyte[] rom);
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abstract void update(ubyte* signal, int scanLine, int startCol,
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uint len);
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abstract void update80(ubyte* signal, int scanLine, int startCol,
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uint len);
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}
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class SignalBase
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{
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abstract void update();
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abstract void update(Mode mode, bool col80, bool colorBurst,
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int startLine, int stopLine, int startCol, int stopCol);
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abstract void dHGRChange(bool newdHGR);
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}
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class Screen
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{
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ushort* data;
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int width, height;
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ScannerBase scanner;
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bool isColor;
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abstract void draw(bool col80, bool colorBurst, ubyte* bitmap,
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int scanLine, int scanStart, int scanEnd);
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}
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struct VideoPages
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{
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DataMem lores1;
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DataMem lores2;
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DataMem hires1;
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DataMem hires2;
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void reboot()
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{
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lores1.reboot();
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lores2.reboot();
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hires1.reboot();
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hires2.reboot();
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}
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}
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