1 // splash.cxx -- draws the initial splash screen
3 // Written by Curtis Olson, started July 1998. (With a little looking
4 // at Freidemann's panel code.) :-)
6 // Copyright (C) 1997 Michele F. America - nomimarketing@mail.telepac.pt
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 // (Log is kept at end of this file)
39 #include <Debug/logstream.hxx>
40 #include <Main/options.hxx>
41 #include <Math/fg_random.h>
42 #include <Objects/texload.h>
48 static GLuint splash_texid;
49 static GLubyte *splash_texbuf;
52 // Initialize the splash screen
53 void fgSplashInit ( void ) {
54 string tpath, fg_tpath;
57 FG_LOG( FG_GENERAL, FG_INFO, "Initializing splash screen" );
59 xglGenTextures(1, &splash_texid);
60 xglBindTexture(GL_TEXTURE_2D, splash_texid);
61 #elif GL_EXT_texture_object
62 xglGenTexturesEXT(1, &splash_texid);
63 xglBindTextureEXT(GL_TEXTURE_2D, splash_texid);
68 xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
69 xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
70 xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
71 xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
73 // load in the texture data
74 int num = (int)(fg_random() * 4.0 + 1.0);
76 sprintf(num_str, "%d", num);
77 tpath = current_options.get_fg_root() + "/Textures/Splash";
82 read_rgb_texture(tpath.c_str(), &width, &height)) == NULL )
85 fg_tpath = tpath + ".gz";
87 read_rgb_texture(fg_tpath.c_str(), &width, &height)) == NULL )
89 FG_LOG( FG_GENERAL, FG_ALERT,
90 "Error in loading splash screen texture " << tpath );
95 xglTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB,
96 GL_UNSIGNED_BYTE, (GLvoid *)(splash_texbuf) );
100 // Update the splash screen with progress specified from 0.0 to 1.0
101 void fgSplashUpdate ( double progress ) {
102 int xmin, ymin, xmax, ymax;
106 xmin = (current_view.get_winWidth() - xsize) / 2;
109 ymin = (current_view.get_winHeight() - ysize) / 2;
112 // first clear the screen;
113 xglClearColor(0.0, 0.0, 0.0, 1.0);
114 xglClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT );
117 xglMatrixMode(GL_PROJECTION);
120 gluOrtho2D(0, current_view.get_winWidth(), 0, current_view.get_winHeight());
121 xglMatrixMode(GL_MODELVIEW);
125 xglDisable(GL_DEPTH_TEST);
126 xglDisable(GL_LIGHTING);
127 xglEnable(GL_TEXTURE_2D);
128 #ifdef GL_VERSION_1_1
129 xglBindTexture(GL_TEXTURE_2D, splash_texid);
130 #elif GL_EXT_texture_object
131 xglBindTextureEXT(GL_TEXTURE_2D, splash_texid);
135 xglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
137 xglBegin(GL_POLYGON);
138 xglTexCoord2f(0.0, 0.0); glVertex2f(xmin, ymin);
139 xglTexCoord2f(1.0, 0.0); glVertex2f(xmax, ymin);
140 xglTexCoord2f(1.0, 1.0); glVertex2f(xmax, ymax);
141 xglTexCoord2f(0.0, 1.0); glVertex2f(xmin, ymax);
146 xglEnable(GL_DEPTH_TEST);
147 xglEnable(GL_LIGHTING);
148 xglDisable(GL_TEXTURE_2D);
150 xglMatrixMode(GL_PROJECTION);
152 xglMatrixMode(GL_MODELVIEW);
158 // Revision 1.10 1999/03/08 21:56:40 curt
159 // Added panel changes sent in by Friedemann.
160 // Added a splash screen randomization since we have several nice splash screens.
162 // Revision 1.9 1998/12/09 18:50:26 curt
163 // Converted "class fgVIEW" to "class FGView" and updated to make data
164 // members private and make required accessor functions.
166 // Revision 1.8 1998/11/16 14:00:05 curt
167 // Added pow() macro bug work around.
168 // Added support for starting FGFS at various resolutions.
169 // Added some initial serial port support.
170 // Specify default log levels in main().
172 // Revision 1.7 1998/11/06 21:18:14 curt
173 // Converted to new logstream debugging facility. This allows release
174 // builds with no messages at all (and no performance impact) by using
175 // the -DFG_NDEBUG flag.
177 // Revision 1.6 1998/10/17 01:34:25 curt
180 // Revision 1.5 1998/09/26 13:17:29 curt
181 // Clear screen to "black" before drawing splash screen.
183 // Revision 1.4 1998/08/27 17:02:08 curt
184 // Contributions from Bernie Bright <bbright@c031.aone.net.au>
185 // - use strings for fg_root and airport_id and added methods to return
187 // - inlined all access methods,
188 // - made the parsing functions private methods,
189 // - deleted some unused functions.
190 // - propogated some of these changes out a bit further.
192 // Revision 1.3 1998/08/25 16:59:10 curt
193 // Directory reshuffling.
195 // Revision 1.2 1998/07/13 21:01:40 curt
196 // Wrote access functions for current fgOPTIONS.
198 // Revision 1.1 1998/07/06 02:42:36 curt