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First version of graphics.h

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git-svn-id: svn://svn.cc65.org/cc65/trunk@846 b7a2c559-68d2-44c3-8de9-860c34a00d81
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/*****************************************************************************/
/* */
/* graphics.h */
/* */
/* Graphics library */
/* */
/* */
/* */
/* (C) 2001 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef _GRAPHICS_H
#define _GRAPHICS_H
/*****************************************************************************/
/* Constants */
/*****************************************************************************/
#define GM_TEXT 0U /* Text mode */
#define GM_320_200_2 1U /* 320x200, 2 colors (b/w) */
#define GM_160_200_4 2U /* 160x200, 4 colors */
/*****************************************************************************/
/* Functions */
/*****************************************************************************/
unsigned char __fastcall__ initgraph (unsigned char mode);
/* Initialize the graphics screen to the given mode, return the new mode.
* Not all modes are available on all systems, check the returned mode
* to see if the initialization was successful.
*/
void closegraph (void);
/* End graphics mode, switch back to text mode */
void cleargraphscreen (void);
/* Clear the screen */
unsigned char getgraphmode (void);
/* Return the current graphics mode */
unsigned char getmaxcolor (void);
/* Return the maximum supported color number (the number of colors would
* then be getmaxcolor()+1).
*/
unsigned getmaxx (void);
/* Return the maximum x coordinate. The resolution in x direction is
* getmaxx() + 1
*/
unsigned getmaxy (void);
/* Return the maximum y coordinate. The resolution in y direction is
* getmaxy() + 1
*/
void __fastcall__ getaspectratio (unsigned* xasp, unsigned* yasp);
/* Get the aspect ratio for the current graphics mode. yasp will always be
* 10000, xasp depends on the maxx/mayy ratio of the current resolution.
*/
void __fastcall__ setcolor (unsigned char color);
/* Set the current drawing color */
unsigned char getcolor (void);
/* Return the current drawing color */
unsigned char __fastcall__ getpixel (int x, int y);
/* Get the color value of a pixel */
void __fastcall__ putpixel (int x, int y);
/* Plot a point in the current drawing color */
void __fastcall__ line (int x1, int y1, int x2, int y2);
/* Draw a line in the current drawing color */
void __fastcall__ circle (int x, int y, unsigned radius);
/* Draw a circle in the current drawing color */
void __fastcall__ outtext (int x, int y, const char* text);
/* Print a text in graphics mode */
void __fastcall__ bar (int x1, int y1, int x2, int y2);
/* Draw a bar (a filled rectangle) using the current color */
/* End of graphics.h */
#endif