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cc65/include/tgi/tgi-kernel.h

89 lines
4.6 KiB
C

/*****************************************************************************/
/* */
/* tgi-kernel.h */
/* */
/* TGI kernel interface */
/* */
/* */
/* */
/* (C) 2002-2012, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* 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 _TGI_KERNEL_H
#define _TGI_KERNEL_H
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* TGI kernel variables */
extern void* tgi_drv; /* Pointer to driver */
extern unsigned char tgi_error; /* Last error code */
extern unsigned char tgi_gmode; /* Flag: Graphics mode active */
extern int tgi_curx; /* Current drawing cursor X */
extern int tgi_cury; /* Current drawing cursor Y */
extern unsigned char tgi_color; /* Current drawing color */
extern unsigned char tgi_font; /* Current font type */
extern unsigned tgi_xres; /* X resolution of the current mode */
extern unsigned tgi_yres; /* Y resolution of the current mode */
extern unsigned char tgi_colorcount; /* Number of available colors */
extern unsigned char tgi_pagecount; /* Number of available screens */
extern unsigned char tgi_fontwidth; /* System font width in pixels */
extern unsigned char tgi_fontheight; /* System font height in pixels */
extern unsigned tgi_aspectratio; /* Aspect ratio as fixed point 8.8 */
extern unsigned char tgi_flags; /* TGI driver flags */
extern unsigned tgi_textscalew[2]; /* Vector/bitmap font scale 8.8 */
extern unsigned tgi_textscaleh[2]; /* Vector/bitmap font scale 8.8 */
extern unsigned tgi_charwidth; /* Width of scaled bitmap font */
extern unsigned tgi_charheight; /* Height of scaled bitmap font */
/*****************************************************************************/
/* Code */
/*****************************************************************************/
int __fastcall__ tgi_imulround (int rhs, int lhs);
/* Helper function for functions using sine/cosine: Multiply two values, one
* being an 8.8 fixed point one, and return the rounded and scaled result.
*/
/* End of tgi-kernel.h */
#endif