/*****************************************************************************/ /* */ /* tgi.h */ /* */ /* Tiny graphics interface */ /* */ /* */ /* */ /* (C) 2002-2009, 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_H #define _TGI_H #ifndef _TGI_MODE_H #include #endif #ifndef _TGI_ERROR_H #include #endif /*****************************************************************************/ /* Definitions */ /*****************************************************************************/ /* Color constants */ #define TGI_COLOR_BLACK 0 #define TGI_COLOR_WHITE 1 /* Font constants for use with tgi_textstyle */ #define TGI_FONT_BITMAP 0 #define TGI_FONT_VECTOR 1 /* Direction constants for use with tgi_textstyle */ #define TGI_TEXT_HORIZONTAL 0 #define TGI_TEXT_VERTICAL 1 /* The name of the standard tgi driver for a platform */ extern const char tgi_stddrv[]; /* The default tgi mode for a platform */ extern const unsigned char tgi_stdmode; /* A vector font definition */ typedef struct tgi_vectorfont tgi_vectorfont; /*****************************************************************************/ /* Functions */ /*****************************************************************************/ void __fastcall__ tgi_load (unsigned char mode); /* Load and install the matching driver for the given mode. Will just load * the driver and check if loading was successul. Will not switch to gaphics * mode. */ void __fastcall__ tgi_load_driver (const char* name); /* Load and install the given driver. This function is identical to tgi_load * with the only difference that the name of the driver is specified * explicitly. */ void __fastcall__ tgi_unload (void); /* Uninstall, then unload the currently loaded driver. Will call tgi_done if * necessary. */ void __fastcall__ tgi_install (void* driver); /* Install an already loaded driver. */ void __fastcall__ tgi_uninstall (void); /* Uninstall the currently loaded driver but do not unload it. Will call * tgi_done if necessary. */ void __fastcall__ tgi_init (void); /* Initialize the already loaded graphics driver. */ void __fastcall__ tgi_done (void); /* End graphics mode, switch back to text mode. Will NOT uninstall or unload * the driver! */ const tgi_vectorfont* __fastcall__ tgi_load_vectorfont (const char* name); /* Load a vector font into memory and return it. In case of errors, NULL is * returned and an error is set, which can be retrieved using tgi_geterror. * To use the font, it has to be installed using tgi_install_vectorfont. */ void __fastcall__ tgi_install_vectorfont (const tgi_vectorfont* font); /* Install a vector font for use. More than one vector font can be loaded, * but only one can be active. This function is used to tell which one. Call * with a NULL pointer to uninstall the currently installed font. */ void tgi_free_vectorfont (const tgi_vectorfont* font); /* Free a vector font that was previously loaded into memory. */ unsigned char __fastcall__ tgi_geterror (void); /* Return the error code for the last operation. This will also clear the * error. */ const char* __fastcall__ tgi_geterrormsg (unsigned char code); /* Get an error message describing the error in code. */ void __fastcall__ tgi_clear (void); /* Clear the drawpage. */ unsigned __fastcall__ tgi_getpagecount (void); /* Returns the number of screen pages available. */ void __fastcall__ tgi_setviewpage (unsigned char page); /* Set the visible page. Will set an error if the page is not available. */ void __fastcall__ tgi_setdrawpage (unsigned char page); /* Set the drawable page. Will set an error if the page is not available. */ unsigned char __fastcall__ tgi_getcolorcount (void); /* Get the number of available colors. */ unsigned char __fastcall__ tgi_getmaxcolor (void); /* Return the maximum supported color number (the number of colors would * then be getmaxcolor()+1). */ void __fastcall__ tgi_setcolor (unsigned char color); /* Set the current drawing color. */ unsigned char __fastcall__ tgi_getcolor (void); /* Return the current drawing color. */ void __fastcall__ tgi_setpalette (const unsigned char* palette); /* Set the palette (not available with all drivers/hardware). palette is * a pointer to as many entries as there are colors. */ const unsigned char* __fastcall__ tgi_getpalette (void); /* Return the current palette. */ const unsigned char* __fastcall__ tgi_getdefpalette (void); /* Return the default palette. */ unsigned __fastcall__ tgi_getxres (void); /* Return the resolution in X direction. */ unsigned __fastcall__ tgi_getmaxx (void); /* Return the maximum x coordinate. The resolution in x direction is * getmaxx() + 1 */ unsigned __fastcall__ tgi_getyres (void); /* Return the resolution in Y direction. */ unsigned __fastcall__ tgi_getmaxy (void); /* Return the maximum y coordinate. The resolution in y direction is * getmaxy() + 1 */ unsigned char __fastcall__ tgi_getpixel (int x, int y); /* Get the color value of a pixel. */ void __fastcall__ tgi_setpixel (int x, int y); /* Plot a pixel in the current drawing color. */ void __fastcall__ tgi_gotoxy (int x, int y); /* Set the graphics cursor to the given position. */ void __fastcall__ tgi_line (int x1, int y1, int x2, int y2); /* Draw a line in the current drawing color. The graphics cursor will * be set to x2/y2 by this call. */ void __fastcall__ tgi_lineto (int x2, int y2); /* Draw a line in the current drawing color from the graphics cursor to the * new end point. The graphics cursor will be updated to x2/y2. */ void __fastcall__ tgi_circle (int x, int y, unsigned char radius); /* Draw a circle in the current drawing color. */ void __fastcall__ tgi_bar (int x1, int y1, int x2, int y2); /* Draw a bar (a filled rectangle) using the current color. */ void __fastcall__ tgi_textscale (unsigned width, unsigned height); /* Set the scaling for text output. The scaling factors for width and height * are 8.8 fixed point values. This means that $100 = 1 $200 = 2 etc. */ void __fastcall__ tgi_textstyle (unsigned width, unsigned height, unsigned char dir, unsigned char font); /* Set the style for text output. The scaling factors for width and height * are 8.8 fixed point values. This means that $100 = 1 $200 = 2 etc. * dir is one of the TGI_TEXT_XXX constants. font is one of the TGI_FONT_XXX * constants. */ unsigned __fastcall__ tgi_textwidth (const char* s); /* Calculate the width of the text in pixels according to the current text * style. */ unsigned __fastcall__ tgi_textheight (const char* s); /* Calculate the height of the text in pixels according to the current text * style. */ void __fastcall__ tgi_outtext (const char* s); /* Output text at the current graphics cursor position. The graphics cursor * is moved to the end of the text. */ void __fastcall__ tgi_outtextxy (int x, int y, const char* s); /* Output text at the given cursor position. The graphics cursor is moved to * the end of the text. */ unsigned __fastcall__ tgi_ioctl (unsigned char code, unsigned val); /* Call the driver specific control function. What this function does for * a specific code depends on the driver. The driver will set an error * for unknown codes or values. */ /* End of tgi.h */ #endif