Changes to go along with small interface changes in simgear/sound/libsgsound

[flightgear.git] / src / Main / splash.cxx

diff --git a/src/Main/splash.cxx b/src/Main/splash.cxx
index 092a3d3714f933b811159d1758bf940545eae71e..ce9d4361ea09fe8174a47c490c88fca5ecfd1621 100644 (file)
--- a/src/Main/splash.cxx
+++ b/src/Main/splash.cxx
@@ -34,64 +34,53 @@
 #  include <windows.h>
 #endif
 
-#include <GL/glut.h>
-#include <GL/gl.h>
-
 #include <string.h>
 
+#include <GL/glu.h>
+
 #include <simgear/debug/logstream.hxx>
+#include <simgear/screen/texture.hxx>
 #include <simgear/math/sg_random.h>
 #include <simgear/misc/sg_path.hxx>
 
-#include <Objects/texload.h>
-
 #include "globals.hxx"
 #include "fg_props.hxx"
 #include "splash.hxx"
+#include "fg_os.hxx"
 
 
-static GLuint splash_texid;
-static GLubyte *splash_texbuf;
 
+static SGTexture splash;
 
-// Initialize the splash screen
-void fgSplashInit ( void ) {
-    int width, height;
 
+// Initialize the splash screen
+void fgSplashInit ( const char *splash_texture ) {
     SG_LOG( SG_GENERAL, SG_INFO, "Initializing splash screen" );
-#ifdef GL_VERSION_1_1
-    glGenTextures(1, &splash_texid);
-    glBindTexture(GL_TEXTURE_2D, splash_texid);
-#elif GL_EXT_texture_object
-    glGenTexturesEXT(1, &splash_texid);
-    glBindTextureEXT(GL_TEXTURE_2D, splash_texid);
-#else
-#  error port me
-#endif
-
-    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);   
-    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 
-    // load in the texture data
-    int num = (int)(sg_random() * 4.0 + 1.0);
-    char num_str[256];
-    sprintf(num_str, "%d", num);
+    splash.bind();
 
     SGPath tpath( globals->get_fg_root() );
-    tpath.append( "Textures/Splash" );
-    tpath.concat( num_str );
-    tpath.concat( ".rgb" );
-
-    if ( (splash_texbuf = 
-         read_rgb_texture(tpath.c_str(), &width, &height)) == NULL )
+    if (splash_texture == NULL || !strcmp(splash_texture, "")) {
+        // load in the texture data
+        int num = (int)(sg_random() * 5.0 + 1.0);
+        char num_str[5];
+        snprintf(num_str, 4, "%d", num);
+
+        tpath.append( "Textures/Splash" );
+        tpath.concat( num_str );
+        tpath.concat( ".rgb" );
+    } else
+        tpath.append( splash_texture );
+
+    splash.read_rgb_texture(tpath.c_str());
+    if (!splash.usable())
     {
        // Try compressed
        SGPath fg_tpath = tpath;
        fg_tpath.concat( ".gz" );
-       if ( (splash_texbuf = 
-             read_rgb_texture(fg_tpath.c_str(), &width, &height)) == NULL )
+
+        splash.read_rgb_texture(fg_tpath.c_str());
+       if ( !splash.usable() )
        {
            SG_LOG( SG_GENERAL, SG_ALERT, 
                    "Error in loading splash screen texture " << tpath.str() );
@@ -99,16 +88,15 @@ void fgSplashInit ( void ) {
        } 
     } 
 
-    glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, 
-                  GL_UNSIGNED_BYTE, (GLvoid *)(splash_texbuf) );
+    splash.select();
 }
 
 
 // Update the splash screen with progress specified from 0.0 to 1.0
-void fgSplashUpdate ( double progress ) {
+void fgSplashUpdate ( double progress, float alpha ) {
     int xmin, ymin, xmax, ymax;
-    int xsize = 480;
-    int ysize = 380;
+    int xsize = 512;
+    int ysize = 512;
 
     if ( !fgGetInt("/sim/startup/xsize")
         || !fgGetInt("/sim/startup/ysize") ) {
@@ -121,11 +109,6 @@ void fgSplashUpdate ( double progress ) {
     ymin = (fgGetInt("/sim/startup/ysize") - ysize) / 2;
     ymax = ymin + ysize;
 
-    // first clear the screen;
-    glClearColor(0.0, 0.0, 0.0, 1.0);
-    glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT );
-
-    // now draw the logo
     glMatrixMode(GL_PROJECTION);
     glPushMatrix();
     glLoadIdentity();
@@ -137,16 +120,22 @@ void fgSplashUpdate ( double progress ) {
 
     glDisable(GL_DEPTH_TEST);
     glDisable(GL_LIGHTING);
+
+    // draw the background
+    glColor4f( 0.0, 0.0, 0.0, alpha );
+    glBegin(GL_POLYGON);
+    glVertex2f(0.0, 0.0);
+    glVertex2f(fgGetInt("/sim/startup/xsize"), 0.0);
+    glVertex2f(fgGetInt("/sim/startup/xsize"), fgGetInt("/sim/startup/ysize"));
+    glVertex2f(0.0, fgGetInt("/sim/startup/ysize")); 
+    glEnd();
+
+    // now draw the logo
     glEnable(GL_TEXTURE_2D);
-#ifdef GL_VERSION_1_1
-    glBindTexture(GL_TEXTURE_2D, splash_texid);
-#elif GL_EXT_texture_object
-    glBindTextureEXT(GL_TEXTURE_2D, splash_texid);
-#else
-#  error port me
-#endif
-    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
+    splash.bind();
+    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 
+    glColor4f( 1.0, 1.0, 1.0, alpha );
     glBegin(GL_POLYGON);
     glTexCoord2f(0.0, 0.0); glVertex2f(xmin, ymin);
     glTexCoord2f(1.0, 0.0); glVertex2f(xmax, ymin);
@@ -154,8 +143,6 @@ void fgSplashUpdate ( double progress ) {
     glTexCoord2f(0.0, 1.0); glVertex2f(xmin, ymax); 
     glEnd();
 
-    glutSwapBuffers();
-
     glEnable(GL_DEPTH_TEST);
     glEnable(GL_LIGHTING);
     glDisable(GL_TEXTURE_2D);