openmohaa/code/cgame/cg_drawtools.c

/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.

This file is part of Quake III Arena source code.

Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.

Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Quake III Arena source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/
//
// cg_drawtools.c -- helper functions called by cg_draw, cg_scoreboard, cg_info, etc
#include "cg_local.h"

/*
================
CG_AdjustFrom640

Adjusted for resolution and screen aspect ratio
================
*/
void CG_AdjustFrom640( float *x, float *y, float *w, float *h ) {
#if 0
	// adjust for wide screens
	if ( cgs.glconfig.vidWidth * 480 > cgs.glconfig.vidHeight * 640 ) {
		*x += 0.5 * ( cgs.glconfig.vidWidth - ( cgs.glconfig.vidHeight * 640 / 480 ) );
	}
#endif
	// scale for screen sizes
	*x *= cgs.screenXScale;
	*y *= cgs.screenYScale;
	*w *= cgs.screenXScale;
	*h *= cgs.screenYScale;
}

/*
================
CG_FillRect

Coordinates are 640*480 virtual values
=================
*/
void CG_FillRect( float x, float y, float width, float height, const float *color ) {
	cgi.R_SetColor( color );

	CG_AdjustFrom640( &x, &y, &width, &height );
	cgi.R_DrawStretchPic( x, y, width, height, 0, 0, 0, 0, cgs.media.whiteShader );

	cgi.R_SetColor( NULL );
}

/*
================
CG_DrawSides

Coords are virtual 640x480
================
*/
void CG_DrawSides(float x, float y, float w, float h, float size) {
	CG_AdjustFrom640( &x, &y, &w, &h );
	size *= cgs.screenXScale;
	cgi.R_DrawStretchPic( x, y, size, h, 0, 0, 0, 0, cgs.media.whiteShader );
	cgi.R_DrawStretchPic( x + w - size, y, size, h, 0, 0, 0, 0, cgs.media.whiteShader );
}

void CG_DrawTopBottom(float x, float y, float w, float h, float size) {
	CG_AdjustFrom640( &x, &y, &w, &h );
	size *= cgs.screenYScale;
	cgi.R_DrawStretchPic( x, y, w, size, 0, 0, 0, 0, cgs.media.whiteShader );
	cgi.R_DrawStretchPic( x, y + h - size, w, size, 0, 0, 0, 0, cgs.media.whiteShader );
}
/*
================
UI_DrawRect

Coordinates are 640*480 virtual values
=================
*/
void CG_DrawRect( float x, float y, float width, float height, float size, const float *color ) {
	cgi.R_SetColor( color );

  CG_DrawTopBottom(x, y, width, height, size);
  CG_DrawSides(x, y, width, height, size);

	cgi.R_SetColor( NULL );
}



/*
================
CG_DrawPic

Coordinates are 640*480 virtual values
=================
*/
void CG_DrawPic( float x, float y, float width, float height, qhandle_t hShader ) {
	CG_AdjustFrom640( &x, &y, &width, &height );
	cgi.R_DrawStretchPic( x, y, width, height, 0, 0, 1, 1, hShader );
}


/*
=================
CG_DrawStrlen

Returns character count, skiping color escape codes
=================
*/
int CG_DrawStrlen( const char *str ) {
	const char *s = str;
	int count = 0;

//	while ( *s ) {
//		if ( Q_IsColorString( s ) ) {
//			s += 2;
//		} else {
//			count++;
//			s++;
//		}
//	}
	return cgi.R_Text_Width( &cgs.media.verdana, str, -1, qtrue );
}

/*
=============
CG_TileClearBox

This repeats a 64*64 tile graphic to fill the screen around a sized down
refresh window.
=============
*/
static void CG_TileClearBox( int x, int y, int w, int h, qhandle_t hShader ) {
	float	s1, t1, s2, t2;

	s1 = x/64.0;
	t1 = y/64.0;
	s2 = (x+w)/64.0;
	t2 = (y+h)/64.0;
	cgi.R_DrawStretchPic( x, y, w, h, s1, t1, s2, t2, hShader );
}

/*
==============
CG_TileClear

Clear around a sized down screen
==============
*/
void CG_TileClear( void ) {
	int		top, bottom, left, right;
	int		w, h;

	w = cgs.glconfig.vidWidth;
	h = cgs.glconfig.vidHeight;

	if ( cg.refdef.x == 0 && cg.refdef.y == 0 && 
		cg.refdef.width == w && cg.refdef.height == h ) {
		return;		// full screen rendering
	}

	top = cg.refdef.y;
	bottom = top + cg.refdef.height-1;
	left = cg.refdef.x;
	right = left + cg.refdef.width-1;

	// clear above view screen
	CG_TileClearBox( 0, 0, w, top, cgs.media.backTileShader );

	// clear below view screen
	CG_TileClearBox( 0, bottom, w, h - bottom, cgs.media.backTileShader );

	// clear left of view screen
	CG_TileClearBox( 0, top, left, bottom - top + 1, cgs.media.backTileShader );

	// clear right of view screen
	CG_TileClearBox( right, top, w - right, bottom - top + 1, cgs.media.backTileShader );
}

/*
================
CG_FadeColor
================
*/
float *CG_FadeColor( int startMsec, int totalMsec ) {
	static vec4_t		color;
	int			t;

	if ( startMsec == 0 ) {
		return NULL;
	}

	t = cg.time - startMsec;

	if ( t >= totalMsec ) {
		return NULL;
	}

	// fade out
	if ( totalMsec - t < FADE_TIME ) {
		color[3] = ( totalMsec - t ) * 1.0/FADE_TIME;
	} else {
		color[3] = 1.0;
	}
	color[0] = color[1] = color[2] = 1;

	return color;
}

/*
==================
CG_DrawStringExt

Draws a multi-colored string with a drop shadow, optionally forcing
to a fixed color.

Coordinates are at 640 by 480 virtual resolution
==================
*/
void CG_DrawStringExt( int x, int y, const char *string, const float *setColor, 
		qboolean forceColor, qboolean shadow, int charWidth, int charHeight, int maxChars ) {
	if(string == 0 || string[0] == 0) 
		return;
	cgi.R_SetColor(setColor);
	cgi.R_Text_Paint(&cgs.media.verdana, x, y, 1, 1, string, 0, maxChars, qfalse, qfalse);
}
void CG_DrawBigString( int x, int y, const char *s, float alpha ) {
	float	color[4];

	color[0] = color[1] = color[2] = 1.0;
	color[3] = alpha;
	CG_DrawStringExt( x, y, s, color, qfalse, qtrue, BIGCHAR_WIDTH, BIGCHAR_HEIGHT, 0 );
}