From http://www.jwz.org/xscreensaver/xscreensaver-5.22.tar.gz

[xscreensaver] / hacks / glx / cubenetic.c

diff --git a/hacks/glx/cubenetic.c b/hacks/glx/cubenetic.c
index e632cc0380c96755c6a031b00152271ce7e22a79..3f92a545323d2e93fa5b6680cf8a8cca36913a1b 100644 (file)
--- a/hacks/glx/cubenetic.c
+++ b/hacks/glx/cubenetic.c
@@ -1,4 +1,4 @@
-/* cubenetic, Copyright (c) 2002-2006 Jamie Zawinski <jwz@jwz.org>
+/* cubenetic, Copyright (c) 2002-2008 Jamie Zawinski <jwz@jwz.org>
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
  * documentation for any purpose is hereby granted without fee, provided that
@@ -32,7 +32,7 @@
 #define DEF_WANDER      "True"
 #define DEF_TEXTURE     "True"
 
-#define DEF_WAVE_COUNT  "3"
+#define DEF_WAVES       "3"
 #define DEF_WAVE_SPEED  "80"
 #define DEF_WAVE_RADIUS "512"
 
@@ -67,6 +67,7 @@ typedef struct {
 
   GLuint cube_list;
   GLuint texture_id;
+  int cube_polys;
   int ncubes;
   cube *cubes;
   waves *waves;
@@ -107,7 +108,7 @@ static argtype vars[] = {
   {&do_spin,   "spin",   "Spin",   DEF_SPIN,   t_String},
   {&do_wander, "wander", "Wander", DEF_WANDER, t_Bool},
   {&do_texture, "texture", "Texture", DEF_TEXTURE, t_Bool},
-  {&wave_count, "waves",     "Waves",      DEF_WAVE_COUNT, t_Int},
+  {&wave_count, "waves",     "Waves",      DEF_WAVES, t_Int},
   {&wave_speed, "waveSpeed", "WaveSpeed",  DEF_WAVE_SPEED, t_Int},
   {&wave_radius,"waveRadius","WaveRadius", DEF_WAVE_RADIUS,t_Int},
 };
@@ -115,15 +116,17 @@ static argtype vars[] = {
 ENTRYPOINT ModeSpecOpt cube_opts = {countof(opts), opts, countof(vars), vars, NULL};
 
 
-static void
+static int
 unit_cube (Bool wire)
 {
+  int polys = 0;
   glBegin (wire ? GL_LINE_LOOP : GL_QUADS);    /* front */
   glNormal3f (0, 0, 1);
   glTexCoord2f(1, 0); glVertex3f ( 0.5, -0.5,  0.5);
   glTexCoord2f(0, 0); glVertex3f ( 0.5,  0.5,  0.5);
   glTexCoord2f(0, 1); glVertex3f (-0.5,  0.5,  0.5);
   glTexCoord2f(1, 1); glVertex3f (-0.5, -0.5,  0.5);
+  polys++;
   glEnd();
 
   glBegin (wire ? GL_LINE_LOOP : GL_QUADS);    /* back */
@@ -132,6 +135,7 @@ unit_cube (Bool wire)
   glTexCoord2f(0, 1); glVertex3f (-0.5,  0.5, -0.5);
   glTexCoord2f(1, 1); glVertex3f ( 0.5,  0.5, -0.5);
   glTexCoord2f(1, 0); glVertex3f ( 0.5, -0.5, -0.5);
+  polys++;
   glEnd();
 
   glBegin (wire ? GL_LINE_LOOP : GL_QUADS);    /* left */
@@ -140,6 +144,7 @@ unit_cube (Bool wire)
   glTexCoord2f(1, 0); glVertex3f (-0.5,  0.5, -0.5);
   glTexCoord2f(0, 0); glVertex3f (-0.5, -0.5, -0.5);
   glTexCoord2f(0, 1); glVertex3f (-0.5, -0.5,  0.5);
+  polys++;
   glEnd();
 
   glBegin (wire ? GL_LINE_LOOP : GL_QUADS);    /* right */
@@ -148,9 +153,10 @@ unit_cube (Bool wire)
   glTexCoord2f(1, 0); glVertex3f ( 0.5,  0.5, -0.5);
   glTexCoord2f(0, 0); glVertex3f ( 0.5,  0.5,  0.5);
   glTexCoord2f(0, 1); glVertex3f ( 0.5, -0.5,  0.5);
+  polys++;
   glEnd();
 
-  if (wire) return;
+  if (wire) return polys;
 
   glBegin (wire ? GL_LINE_LOOP : GL_QUADS);    /* top */
   glNormal3f (0, 1, 0);
@@ -158,6 +164,7 @@ unit_cube (Bool wire)
   glTexCoord2f(0, 1); glVertex3f ( 0.5,  0.5, -0.5);
   glTexCoord2f(1, 1); glVertex3f (-0.5,  0.5, -0.5);
   glTexCoord2f(1, 0); glVertex3f (-0.5,  0.5,  0.5);
+  polys++;
   glEnd();
 
   glBegin (wire ? GL_LINE_LOOP : GL_QUADS);    /* bottom */
@@ -166,7 +173,9 @@ unit_cube (Bool wire)
   glTexCoord2f(0, 0); glVertex3f (-0.5, -0.5, -0.5);
   glTexCoord2f(0, 1); glVertex3f ( 0.5, -0.5, -0.5);
   glTexCoord2f(1, 1); glVertex3f ( 0.5, -0.5,  0.5);
+  polys++;
   glEnd();
+  return polys;
 }
 
 
@@ -298,8 +307,6 @@ init_texture (ModeInfo *mi)
   glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
   glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
   glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-  glTexGeni (GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
-  glTexGeni (GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
   glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
   check_gl_error("texture initialization");
 
@@ -348,7 +355,9 @@ cube_handle_event (ModeInfo *mi, XEvent *event)
     }
   else if (event->xany.type == ButtonPress &&
            (event->xbutton.button == Button4 ||
-            event->xbutton.button == Button5))
+            event->xbutton.button == Button5 ||
+            event->xbutton.button == Button6 ||
+            event->xbutton.button == Button7))
     {
       gltrackball_mousewheel (cc->trackball, event->xbutton.button, 10,
                               !!event->xbutton.state);
@@ -449,7 +458,7 @@ init_cube (ModeInfo *mi)
     H[2] = ((H[1] + shift) < 360) ? (H[1]+shift) : (H[1] + shift - 360);
     S[0] = S[1] = S[2] = 1.0;
     V[0] = V[1] = V[2] = 1.0;
-    make_color_loop(0, 0,
+    make_color_loop(0, 0, 0,
                    H[0], S[0], V[0], 
                    H[1], S[1], V[1], 
                    H[2], S[2], V[2], 
@@ -490,7 +499,7 @@ init_cube (ModeInfo *mi)
 
   cc->cube_list = glGenLists (1);
   glNewList (cc->cube_list, GL_COMPILE);
-  unit_cube (wire);
+  cc->cube_polys = unit_cube (wire);
   glEndList ();
 }
 
@@ -529,6 +538,7 @@ draw_cube (ModeInfo *mi)
   if (!cc->glx_context)
     return;
 
+  mi->polygon_count = 0;
   glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(cc->glx_context));
 
   glShadeModel(GL_FLAT);
@@ -550,7 +560,10 @@ draw_cube (ModeInfo *mi)
                  (y - 0.5) * 6,
                  (z - 0.5) * 15);
 
+    /* Do it twice because we don't track the device's orientation. */
+    glRotatef( current_device_rotation(), 0, 0, 1);
     gltrackball_rotate (cc->trackball);
+    glRotatef(-current_device_rotation(), 0, 0, 1);
 
     get_rotation (cc->rot, &x, &y, &z, !cc->button_down_p);
     glRotatef (x * 360, 1.0, 0.0, 0.0);
@@ -576,6 +589,7 @@ draw_cube (ModeInfo *mi)
       glScalef (cube->w, cube->h, cube->d);
       glMaterialfv (GL_FRONT, GL_AMBIENT_AND_DIFFUSE, color);
       glCallList (cc->cube_list);
+      mi->polygon_count += cc->cube_polys;
       glPopMatrix ();
     }