diff options
Diffstat (limited to 'src/glut/fbdev/bitmap.c')
-rw-r--r-- | src/glut/fbdev/bitmap.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/glut/fbdev/bitmap.c b/src/glut/fbdev/bitmap.c new file mode 100644 index 00000000000..5dbb330cc24 --- /dev/null +++ b/src/glut/fbdev/bitmap.c @@ -0,0 +1,78 @@ +/* + * 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; +} |