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 <Aircraft/aircraft.h>
40 #include <Debug/fg_debug.h>
41 #include <Main/options.hxx>
42 #include <Objects/texload.h>
47 static GLuint splash_texid;
48 static GLubyte *splash_texbuf;
51 // Initialize the splash screen
52 void fgSplashInit ( void ) {
53 char tpath[256], fg_tpath[256];
56 fgPrintf( FG_GENERAL, FG_INFO, "Initializing splash screen\n");
58 xglGenTextures(1, &splash_texid);
59 xglBindTexture(GL_TEXTURE_2D, splash_texid);
60 #elif GL_EXT_texture_object
61 xglGenTexturesEXT(1, &splash_texid);
62 xglBindTextureEXT(GL_TEXTURE_2D, splash_texid);
67 xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
68 xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
69 xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
70 xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
72 // load in the texture data
73 current_options.get_fg_root(tpath);
74 strcat(tpath, "/Textures/");
75 strcat(tpath, "Splash2.rgb");
77 if ( (splash_texbuf = read_rgb_texture(tpath, &width, &height)) == NULL ) {
79 strcpy(fg_tpath, tpath);
80 strcat(fg_tpath, ".gz");
81 if ( (splash_texbuf = read_rgb_texture(fg_tpath, &width, &height))
83 fgPrintf( FG_GENERAL, FG_EXIT,
84 "Error in loading splash screen texture %s\n", tpath );
88 xglTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB,
89 GL_UNSIGNED_BYTE, (GLvoid *)(splash_texbuf) );
93 // Update the splash screen with progress specified from 0.0 to 1.0
94 void fgSplashUpdate ( double progress ) {
95 int xmin, ymin, xmax, ymax;
99 xmin = (640 - xsize) / 2;
102 ymin = (480 - ysize) / 2;
105 xglMatrixMode(GL_PROJECTION);
108 gluOrtho2D(0, 640, 0, 480);
109 xglMatrixMode(GL_MODELVIEW);
113 xglDisable(GL_DEPTH_TEST);
114 xglDisable(GL_LIGHTING);
115 xglEnable(GL_TEXTURE_2D);
116 #ifdef GL_VERSION_1_1
117 xglBindTexture(GL_TEXTURE_2D, splash_texid);
118 #elif GL_EXT_texture_object
119 xglBindTextureEXT(GL_TEXTURE_2D, splash_texid);
123 xglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
125 xglBegin(GL_POLYGON);
126 xglTexCoord2f(0.0, 0.0); glVertex2f(xmin, ymin);
127 xglTexCoord2f(1.0, 0.0); glVertex2f(xmax, ymin);
128 xglTexCoord2f(1.0, 1.0); glVertex2f(xmax, ymax);
129 xglTexCoord2f(0.0, 1.0); glVertex2f(xmin, ymax);
134 xglEnable(GL_DEPTH_TEST);
135 xglEnable(GL_LIGHTING);
136 xglDisable(GL_TEXTURE_2D);
138 xglMatrixMode(GL_PROJECTION);
140 xglMatrixMode(GL_MODELVIEW);
146 // Revision 1.3 1998/08/25 16:59:10 curt
147 // Directory reshuffling.
149 // Revision 1.2 1998/07/13 21:01:40 curt
150 // Wrote access functions for current fgOPTIONS.
152 // Revision 1.1 1998/07/06 02:42:36 curt