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79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
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/*
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* Mesa 3-D graphics library
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* Version: 6.5
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* Copyright (C) 1995-2006 Brian Paul
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* Library for glut using mesa fbdev driver
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*
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* Written by Sean D'Epagnier (c) 2006
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*
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* To improve on this library, maybe support subwindows or overlays,
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* I (sean at depagnier dot com) will do my best to help.
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*/
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#include "glutbitmap.h"
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void glutBitmapCharacter(GLUTbitmapFont font, int c)
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{
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const BitmapCharRec *ch;
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BitmapFontPtr fi = (BitmapFontPtr) font;
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if (c < fi->first ||
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c >= fi->first + fi->num_chars)
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return;
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ch = fi->ch[c - fi->first];
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if (!ch)
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return;
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glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
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glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE);
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glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
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glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
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glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
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glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
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glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
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glBitmap(ch->width, ch->height, ch->xorig, ch->yorig,
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ch->advance, 0, ch->bitmap);
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glPopClientAttrib();
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}
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int glutBitmapWidth (GLUTbitmapFont font, int c)
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{
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const BitmapCharRec *ch;
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BitmapFontPtr fi = (BitmapFontPtr) font;
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if (c < fi->first || c >= fi->first + fi->num_chars)
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return 0;
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ch = fi->ch[c - fi->first];
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if (ch)
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return ch->advance;
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return 0;
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}
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int glutBitmapLength(GLUTbitmapFont font, const unsigned char *string)
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{
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int length = 0;
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for (; *string; string++)
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length += glutBitmapWidth(font, *string);
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return length;
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}
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