| /* |
| * 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; |
| } |