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/*
* Mesa 3-D graphics library
* Version: 6.5
* Copyright (C) 1995-2006 Brian Paul
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Library for glut using mesa fbdev driver
*
* Written by Sean D'Epagnier (c) 2006
*
* To improve on this library, maybe support subwindows or overlays,
* I (sean at depagnier dot com) will do my best to help.
*/
#include "glutbitmap.h"
void glutBitmapCharacter(GLUTbitmapFont font, int c)
{
const BitmapCharRec *ch;
BitmapFontPtr fi = (BitmapFontPtr) font;
if (c < fi->first ||
c >= fi->first + fi->num_chars)
return;
ch = fi->ch[c - fi->first];
if (!ch)
return;
glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE);
glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glBitmap(ch->width, ch->height, ch->xorig, ch->yorig,
ch->advance, 0, ch->bitmap);
glPopClientAttrib();
}
int glutBitmapWidth (GLUTbitmapFont font, int c)
{
const BitmapCharRec *ch;
BitmapFontPtr fi = (BitmapFontPtr) font;
if (c < fi->first || c >= fi->first + fi->num_chars)
return 0;
ch = fi->ch[c - fi->first];
if (ch)
return ch->advance;
return 0;
}
int glutBitmapLength(GLUTbitmapFont font, const unsigned char *string)
{
int length = 0;
for (; *string; string++)
length += glutBitmapWidth(font, *string);
return length;
}
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