You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
362 lines
10 KiB
362 lines
10 KiB
/*
|
|
PLIB - A Suite of Portable Game Libraries
|
|
Copyright (C) 1998,2002 Steve Baker
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2 of the License, or (at your option) any later version.
|
|
|
|
This library 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
For further information visit http://plib.sourceforge.net
|
|
|
|
$Id: fnt.h 1923 2004-04-06 12:53:17Z sjbaker $
|
|
*/
|
|
|
|
|
|
#ifndef _FNT_H_
|
|
#define _FNT_H_ 1
|
|
|
|
#include <stdio.h>
|
|
#include "sg.h"
|
|
|
|
#ifdef UL_MAC_OSX
|
|
# include <OpenGL/gl.h>
|
|
#else
|
|
# include <GL/gl.h>
|
|
#endif
|
|
|
|
|
|
#define FNTMAX_CHAR 256
|
|
#define FNT_TRUE 1
|
|
#define FNT_FALSE 0
|
|
|
|
|
|
class fntFont
|
|
{
|
|
public:
|
|
fntFont () ;
|
|
|
|
virtual ~fntFont () ;
|
|
|
|
virtual void getBBox ( const char *s, float pointsize, float italic,
|
|
float *left, float *right,
|
|
float *bot , float *top ) = 0 ;
|
|
virtual void putch ( sgVec3 curpos, float pointsize, float italic, char c ) = 0 ;
|
|
virtual void puts ( sgVec3 curpos, float pointsize, float italic, const char *s ) = 0 ;
|
|
virtual void begin () = 0 ;
|
|
virtual void end () = 0 ;
|
|
|
|
virtual int load ( const char *fname, GLenum mag = GL_NEAREST,
|
|
GLenum min = GL_LINEAR_MIPMAP_LINEAR ) = 0 ;
|
|
|
|
virtual void setFixedPitch ( int fix ) = 0 ;
|
|
virtual int isFixedPitch () const = 0 ;
|
|
|
|
virtual void setWidth ( float w ) = 0 ;
|
|
virtual void setGap ( float g ) = 0 ;
|
|
|
|
virtual float getWidth () const = 0 ;
|
|
virtual float getGap () const = 0 ;
|
|
|
|
virtual int hasGlyph ( char c ) const = 0 ;
|
|
} ;
|
|
|
|
|
|
class fntTexFont : public fntFont
|
|
{
|
|
private:
|
|
GLuint texture ;
|
|
int bound ;
|
|
int fixed_pitch ;
|
|
|
|
float width ; /* The width of a character in fixed-width mode */
|
|
float gap ; /* Set the gap between characters */
|
|
|
|
int exists [ FNTMAX_CHAR ] ; /* TRUE if character exists in tex-map */
|
|
|
|
/*
|
|
The quadrilaterals that describe the characters
|
|
in the font are drawn with the following texture
|
|
and spatial coordinates. The texture coordinates
|
|
are in (S,T) space, with (0,0) at the bottom left
|
|
of the image and (1,1) at the top-right.
|
|
|
|
The spatial coordinates are relative to the current
|
|
'cursor' position. They should be scaled such that
|
|
1.0 represent the height of a capital letter. Hence,
|
|
characters like 'y' which have a descender will be
|
|
given a negative v_bot. Most capitals will have
|
|
v_bot==0.0 and v_top==1.0.
|
|
*/
|
|
|
|
/* Nominal baseline widths */
|
|
|
|
float widths [ FNTMAX_CHAR ] ;
|
|
|
|
/* Texture coordinates */
|
|
|
|
float t_top [ FNTMAX_CHAR ] ; /* Top edge of each character [0..1] */
|
|
float t_bot [ FNTMAX_CHAR ] ; /* Bottom edge of each character [0..1] */
|
|
float t_left [ FNTMAX_CHAR ] ; /* Left edge of each character [0..1] */
|
|
float t_right [ FNTMAX_CHAR ] ; /* Right edge of each character [0..1] */
|
|
|
|
/* Vertex coordinates. */
|
|
|
|
float v_top [ FNTMAX_CHAR ] ;
|
|
float v_bot [ FNTMAX_CHAR ] ;
|
|
float v_left [ FNTMAX_CHAR ] ;
|
|
float v_right [ FNTMAX_CHAR ] ;
|
|
|
|
void bind_texture ()
|
|
{
|
|
glEnable ( GL_TEXTURE_2D ) ;
|
|
#ifdef GL_VERSION_1_1
|
|
glBindTexture ( GL_TEXTURE_2D, texture ) ;
|
|
#else
|
|
/* For ancient SGI machines */
|
|
glBindTextureEXT ( GL_TEXTURE_2D, texture ) ;
|
|
#endif
|
|
}
|
|
|
|
float low_putch ( sgVec3 curpos, float pointsize, float italic, char c ) ;
|
|
|
|
int loadTXF ( const char *fname, GLenum mag = GL_NEAREST,
|
|
GLenum min = GL_LINEAR_MIPMAP_LINEAR ) ;
|
|
public:
|
|
|
|
fntTexFont ()
|
|
{
|
|
bound = FNT_FALSE ;
|
|
fixed_pitch = FNT_TRUE ;
|
|
texture = 0 ;
|
|
width = 1.0f ;
|
|
gap = 0.1f ;
|
|
|
|
memset ( exists, FNT_FALSE, FNTMAX_CHAR * sizeof(int) ) ;
|
|
}
|
|
|
|
fntTexFont ( const char *fname, GLenum mag = GL_NEAREST,
|
|
GLenum min = GL_LINEAR_MIPMAP_LINEAR ) : fntFont ()
|
|
{
|
|
bound = FNT_FALSE ;
|
|
fixed_pitch = FNT_TRUE ;
|
|
texture = 0 ;
|
|
width = 1.0f ;
|
|
gap = 0.1f ;
|
|
|
|
memset ( exists, FNT_FALSE, FNTMAX_CHAR * sizeof(int) ) ;
|
|
load ( fname, mag, min ) ;
|
|
}
|
|
|
|
~fntTexFont ()
|
|
{
|
|
if ( texture != 0 )
|
|
{
|
|
#ifdef GL_VERSION_1_1
|
|
glDeleteTextures ( 1, &texture ) ;
|
|
#else
|
|
/* For ancient SGI machines */
|
|
glDeleteTexturesEXT ( 1, &texture ) ;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
int load ( const char *fname, GLenum mag = GL_NEAREST,
|
|
GLenum min = GL_LINEAR_MIPMAP_LINEAR ) ;
|
|
|
|
void setFixedPitch ( int fix ) { fixed_pitch = fix ; }
|
|
int isFixedPitch () const { return fixed_pitch ; }
|
|
|
|
void setWidth ( float w ) { width = w ; }
|
|
void setGap ( float g ) { gap = g ; }
|
|
|
|
float getWidth () const { return width ; }
|
|
float getGap () const { return gap ; }
|
|
|
|
|
|
void setGlyph ( char c, float wid,
|
|
float tex_left, float tex_right,
|
|
float tex_bot , float tex_top ,
|
|
float vtx_left, float vtx_right,
|
|
float vtx_bot , float vtx_top ) ;
|
|
void setGlyph ( char c,
|
|
float tex_left, float tex_right,
|
|
float tex_bot , float tex_top ,
|
|
float vtx_left, float vtx_right,
|
|
float vtx_bot , float vtx_top ) /* deprecated */
|
|
{
|
|
setGlyph ( c, vtx_right,
|
|
tex_left, tex_right, tex_bot, tex_top,
|
|
vtx_left, vtx_right, vtx_bot, vtx_top ) ;
|
|
}
|
|
|
|
int getGlyph ( char c, float* wid,
|
|
float *tex_left = NULL, float *tex_right = NULL,
|
|
float *tex_bot = NULL, float *tex_top = NULL,
|
|
float *vtx_left = NULL, float *vtx_right = NULL,
|
|
float *vtx_bot = NULL, float *vtx_top = NULL) ;
|
|
int getGlyph ( char c,
|
|
float *tex_left = NULL, float *tex_right = NULL,
|
|
float *tex_bot = NULL, float *tex_top = NULL,
|
|
float *vtx_left = NULL, float *vtx_right = NULL,
|
|
float *vtx_bot = NULL, float *vtx_top = NULL) /* deprecated */
|
|
{
|
|
return getGlyph ( c, NULL,
|
|
tex_left, tex_right, tex_bot, tex_top,
|
|
vtx_left, vtx_right, vtx_bot, vtx_top ) ;
|
|
}
|
|
|
|
int hasGlyph ( char c ) const { return exists[ (GLubyte) c ] ; }
|
|
|
|
void getBBox ( const char *s, float pointsize, float italic,
|
|
float *left, float *right,
|
|
float *bot , float *top ) ;
|
|
|
|
void begin ()
|
|
{
|
|
bind_texture () ;
|
|
bound = FNT_TRUE ;
|
|
}
|
|
|
|
void end ()
|
|
{
|
|
bound = FNT_FALSE ;
|
|
}
|
|
|
|
void puts ( sgVec3 curpos, float pointsize, float italic, const char *s ) ;
|
|
|
|
void putch ( sgVec3 curpos, float pointsize, float italic, char c )
|
|
{
|
|
if ( ! bound )
|
|
bind_texture () ;
|
|
|
|
low_putch ( curpos, pointsize, italic, c ) ;
|
|
}
|
|
|
|
} ;
|
|
|
|
|
|
|
|
class fntBitmapFont : public fntFont
|
|
{
|
|
protected:
|
|
|
|
const GLubyte **data;
|
|
int first;
|
|
int count;
|
|
int height;
|
|
float xorig, yorig;
|
|
int fix;
|
|
float wid, gap;
|
|
|
|
public:
|
|
|
|
// data is a null-terminated list of glyph images:
|
|
// data[i][0] - image width
|
|
// data[i][1..n] - packed bitmap
|
|
|
|
fntBitmapFont ( const GLubyte **data, int first, int height,
|
|
float xorig, float yorig ) ;
|
|
|
|
virtual ~fntBitmapFont () ;
|
|
|
|
virtual void getBBox ( const char *s, float pointsize, float italic,
|
|
float *left, float *right,
|
|
float *bot , float *top ) ;
|
|
|
|
virtual void putch ( sgVec3 curpos, float pointsize, float italic, char c ) ;
|
|
virtual void puts ( sgVec3 curpos, float pointsize, float italic, const char *s ) ;
|
|
|
|
virtual void begin () ;
|
|
virtual void end () ;
|
|
|
|
virtual int load ( const char *fname, GLenum mag, GLenum min ) { return -1; }
|
|
|
|
virtual void setFixedPitch ( int f ) { fix = f; }
|
|
virtual int isFixedPitch () const { return fix; }
|
|
|
|
virtual void setWidth ( float w ) { wid = w; }
|
|
virtual void setGap ( float g ) { gap = g; }
|
|
|
|
virtual float getWidth () const { return wid; }
|
|
virtual float getGap () const { return gap; }
|
|
|
|
virtual int hasGlyph ( char c ) const ;
|
|
};
|
|
|
|
|
|
/* Builtin Bitmap Fonts */
|
|
|
|
#define FNT_BITMAP_8_BY_13 0
|
|
#define FNT_BITMAP_9_BY_15 1
|
|
#define FNT_BITMAP_HELVETICA_10 2
|
|
#define FNT_BITMAP_HELVETICA_12 3
|
|
#define FNT_BITMAP_HELVETICA_18 4
|
|
#define FNT_BITMAP_TIMES_ROMAN_10 5
|
|
#define FNT_BITMAP_TIMES_ROMAN_24 6
|
|
|
|
fntBitmapFont *fntGetBitmapFont(int id);
|
|
|
|
|
|
|
|
class fntRenderer
|
|
{
|
|
fntFont *font ;
|
|
|
|
sgVec3 curpos ;
|
|
|
|
float pointsize ;
|
|
float italic ;
|
|
|
|
public:
|
|
fntRenderer ()
|
|
{
|
|
start2f ( 0.0f, 0.0f ) ;
|
|
font = NULL ;
|
|
pointsize = 10 ;
|
|
italic = 0 ;
|
|
}
|
|
|
|
void start3fv ( sgVec3 pos ) { sgCopyVec3 ( curpos, pos ) ; }
|
|
void start2fv ( sgVec2 pos ) { sgCopyVec2 ( curpos, pos ) ; curpos[2]=0.0f ; }
|
|
void start2f ( float x, float y ) { sgSetVec3 ( curpos, x, y, 0.0f ) ; }
|
|
void start3f ( float x, float y, float z ) { sgSetVec3 ( curpos, x, y, z ) ; }
|
|
|
|
void getCursor ( float *x, float *y, float *z ) const
|
|
{
|
|
if ( x != NULL ) *x = curpos [ 0 ] ;
|
|
if ( y != NULL ) *y = curpos [ 1 ] ;
|
|
if ( z != NULL ) *z = curpos [ 2 ] ;
|
|
}
|
|
|
|
void setFont ( fntFont *f ) { font = f ; }
|
|
fntFont *getFont () const { return font ; }
|
|
|
|
void setSlant ( float i ) { italic = i ; }
|
|
void setPointSize ( float p ) { pointsize = p ; }
|
|
|
|
float getSlant () const { return italic ; }
|
|
float getPointSize () const { return pointsize ; }
|
|
|
|
void begin () { font->begin () ; }
|
|
void end () { font->end () ; }
|
|
|
|
void putch ( char c ) { font->putch ( curpos, pointsize, italic, c ) ; }
|
|
void puts ( const char *s ) { font->puts ( curpos, pointsize, italic, s ) ; }
|
|
} ;
|
|
|
|
|
|
void fntInit () ;
|
|
|
|
#endif
|
|
|