http://packetstormsecurity.org/UNIX/admin/xscreensaver-4.02.tar.gz

[xscreensaver] / hacks / glx / extrusion.c

diff --git a/hacks/glx/extrusion.c b/hacks/glx/extrusion.c
index 726177e6787ceeed530fdc0e634b64ab313900ad..0f35ffb642371ab47dbd209c6be2dcf0c8822e83 100644 (file)
--- a/hacks/glx/extrusion.c
+++ b/hacks/glx/extrusion.c
@@ -37,8 +37,11 @@
 # define PROGCLASS                                             "Screensaver"
 # define HACK_INIT                                             init_screensaver
 # define HACK_DRAW                                             draw_screensaver
+# define HACK_RESHAPE                                  reshape_screensaver
 # define screensaver_opts                              xlockmore_opts
-#define        DEFAULTS                        "*light:                        True    \n" \
+#define        DEFAULTS                        "*delay:                        10000   \n" \
+                                                                               "*showFPS:              False   \n" \
+                                                                               "*light:                        True    \n" \
                                         "*wire:                                False   \n" \
                                         "*texture:                     False   \n" \
                                                                                "*image:                        BUILTIN \n" \
@@ -52,13 +55,6 @@
 
 #ifdef USE_GL /* whole file */
 
-#ifdef HAVE_XPM
-# include <X11/xpm.h>
-# ifndef PIXEL_ALREADY_TYPEDEFED
-# define PIXEL_ALREADY_TYPEDEFED /* Sigh, Xmu/Drawing.h needs this... */
-# endif
-#endif
-
 #ifdef HAVE_XMU
 # ifndef VMS
 #  include <X11/Xmu/Drawing.h>
@@ -67,7 +63,7 @@
 # endif /* VMS */
 #endif
 
-#include <malloc.h>
+#include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -458,12 +454,24 @@ void Create_Texture(char *filename, int do_mipmap, int do_texture_quality)
   }
 
   if (do_mipmap) {
-    gluBuild2DMipmaps(GL_TEXTURE_2D, format, width, height, 
-                     format, GL_UNSIGNED_BYTE, image);
-  }
-  else {
+    int status;
+    clear_gl_error();
+    status = gluBuild2DMipmaps(GL_TEXTURE_2D, format, width, height, 
+                               format, GL_UNSIGNED_BYTE, image);
+    if (status)
+      {
+        const char *s = gluErrorString (status);
+        fprintf (stderr, "%s: error mipmapping %dx%d texture: %s\n",
+                 progname, width, height,
+                 (s ? s : "(unknown)"));
+        exit (1);
+      }
+    check_gl_error("mipmapping");
+  } else {
+    clear_gl_error();
     glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0,
                 format, GL_UNSIGNED_BYTE, image);
+    check_gl_error("texture");
   }
   free(image);
 }
@@ -664,6 +672,7 @@ void draw_screensaver(ModeInfo * mi)
       dd_lasty *= scale;
     }
 
+  if (mi->fps_p) do_fps (mi);
   glXSwapBuffers(display, window);
 }
 
@@ -695,8 +704,8 @@ void resetProjection(void) {
 }
 
 /* Standard reshape function */
-static void
-reshape(int width, int height)
+void
+reshape_screensaver(ModeInfo *mi, int width, int height)
 {
   global_width=width;
   global_height=height;
@@ -734,12 +743,13 @@ void chooseScreensaverExample(void) {
 }
 
 /* main OpenGL initialization routine */
-void initializeGL(GLsizei width, GLsizei height) 
+void
+initializeGL(ModeInfo *mi, GLsizei width, GLsizei height) 
 {
   int style;
   int mode;
 
-  reshape(width, height);
+  reshape_screensaver(mi, width, height);
   glViewport( 0, 0, width, height ); 
 
   glEnable(GL_DEPTH_TEST);
@@ -789,8 +799,8 @@ void init_screensaver(ModeInfo * mi)
 
   gp->window = MI_WINDOW(mi);
   if ((gp->glx_context = init_GL(mi)) != NULL) {
-       reshape(MI_WIDTH(mi), MI_HEIGHT(mi));
-       initializeGL(MI_WIDTH(mi), MI_HEIGHT(mi));
+       reshape_screensaver(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
+       initializeGL(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
        chooseScreensaverExample();
   } else {
        MI_CLEARWINDOW(mi);