mirror of https://github.com/makarcz/vm6502.git
114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
/*
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*--------------------------------------------------------------------
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* Project: VM65 - Virtual Machine/CPU emulator programming
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* framework.
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*
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* File: GraphDisp.h
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*
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* Purpose: Prototype of GraphDisp class and supporting data
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* structures, enumerations, constants and macros.
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*
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* Date: 8/25/2016
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*
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* Copyright: (C) by Marek Karcz 2016. All rights reserved.
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*
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* Contact: makarcz@yahoo.com
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*
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* License Agreement and Warranty:
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This software is provided with No Warranty.
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I (Marek Karcz) will not be held responsible for any damage to
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computer systems, data or user's health resulting from use.
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Please proceed responsibly and apply common sense.
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This software is provided in hope that it will be useful.
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It is free of charge for non-commercial and educational use.
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Distribution of this software in non-commercial and educational
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derivative work is permitted under condition that original
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copyright notices and comments are preserved. Some 3-rd party work
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included with this project may require separate application for
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permission from their respective authors/copyright owners.
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*--------------------------------------------------------------------
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*/
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#ifndef GRAPHDISP_H
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#define GRAPHDISP_H
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/*
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* Rudimentary emulation of generic raster graphics RGB display device.
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*/
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#include <thread>
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#include <SDL.h>
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// defaults
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#define GRDISP_VR_X 320
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#define GRDISP_VR_Y 200
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#define CHROM_8x8_SIZE 2048
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using namespace std;
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namespace MKBasic {
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const int GRAPHDISP_MAXW = 960; // "real" display width or maximum virtual width
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const int GRAPHDISP_MAXH = 600; // "real" display width or maximum virtual height
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class GraphDisp {
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public:
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bool mContLoop; // = true;
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bool mMainLoopActive; // = false;
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GraphDisp();
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GraphDisp(int width, int height);
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~GraphDisp();
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void Start(GraphDisp *pgd);
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void Stop();
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void SetPixel(int x, int y);
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void ErasePixel(int x, int y);
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void DrawLine(int x1, int y1, int x2, int y2);
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void EraseLine(int x1, int y1, int x2, int y2);
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void SetBgColor(int r, int g, int b);
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void SetFgColor(int r, int g, int b);
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void Update();
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void ReadEvents();
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void ClearScreen();
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//void MainLoop();
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bool IsMainLoopActive();
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void PrintChar8x8(int code, int col, int row, bool reversed);
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void CopyCharRom8x8(unsigned char *pchrom);
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private:
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int mWidth; // virtual display width
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int mHeight; // virtual display height
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int mPixelSizeX; // virtual pixel width
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int mPixelSizeY; // virtual pixel height
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int mWinPosX; // SDL window position coordinate X
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int mWinPosY; // SDL window position coordinate Y
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int mBgRgbR; // bg color, RGB red intensity
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int mBgRgbG; // bg color, RGB green intensity
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int mBgRgbB; // bg color, RGB blue intensity
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int mFgRgbR; // fg color, RGB red intensity
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int mFgRgbG; // fg color, RGB green intensity
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int mFgRgbB; // fg color, RGB blue intensity
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SDL_Window *mpWindow;
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SDL_Surface *mpSurface;
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SDL_Renderer *mpRenderer;
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thread mMainLoopThread;
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unsigned char mCharROM8x8[CHROM_8x8_SIZE];
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void Initialize();
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void UpdateSurface();
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void Clear();
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void GetDesktopResolution(int& horizontal, int& vertical);
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void DrawLine(int x1, int y1, int x2, int y2, bool draworerase);
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void RenderPixel(int x, int y, bool set);
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void RenderChar8x8(unsigned char chdef[8], int x, int y, bool reversed);
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}; // class GraphDisp
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} // namespace MKBasic
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#endif
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