http://www.tienza.es/crux/src/www.jwz.org/xscreensaver/xscreensaver-5.05.tar.gz

[xscreensaver] / hacks / glx / boing.c

diff --git a/hacks/glx/boing.c b/hacks/glx/boing.c
index b315a6460ed2758d7da902513da9664d45a7647f..cb09a049d17e99f32e2b230b2aa6e90958e63ec8 100644 (file)
--- a/hacks/glx/boing.c
+++ b/hacks/glx/boing.c
@@ -1,4 +1,4 @@
-/* boing, Copyright (c) 2005 Jamie Zawinski <jwz@jwz.org>
+/* boing, Copyright (c) 2005-2008 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
@@ -21,22 +21,26 @@
  * does not, obviously.
  */
 
-#include <X11/Intrinsic.h>
+#define DEFAULTS       "*delay:        30000            \n" \
+                       "*showFPS:      False            \n" \
+                       "*wireframe:    False            \n" \
+
+# define refresh_boing 0
+# define release_boing 0
+#undef countof
+#define countof(x) (sizeof((x))/sizeof((*x)))
+
+#include "xlockmore.h"
+#include "gltrackball.h"
+#include <ctype.h>
 
-extern XtAppContext app;
+#ifdef USE_GL /* whole file */
 
-#define PROGCLASS      "Boing"
-#define HACK_INIT      init_boing
-#define HACK_DRAW      draw_boing
-#define HACK_RESHAPE   reshape_boing
-#define HACK_HANDLE_EVENT boing_handle_event
-#define EVENT_MASK      PointerMotionMask
-#define sws_opts       xlockmore_opts
 
 #define DEF_SPIN        "True"
 #define DEF_LIGHTING    "False"
 #define DEF_SMOOTH      "False"
-#define DEF_SCANLINES   "False"
+#define DEF_SCANLINES   "True"
 #define DEF_SPEED       "1.0"
 #define DEF_SIZE        "0.5"
 #define DEF_ANGLE       "15"
@@ -51,37 +55,6 @@ extern XtAppContext app;
 #define DEF_SHADOW_COLOR "#303030"
 #define DEF_BACKGROUND   "#8C8C8C"
 
-#define DEFAULTS       "*delay:        30000            \n" \
-                       "*showFPS:      False            \n" \
-                       "*wireframe:    False            \n" \
-                       "*spin:       " DEF_SPIN        "\n" \
-                       "*lighting:   " DEF_LIGHTING    "\n" \
-                       "*smooth:     " DEF_SMOOTH      "\n" \
-                       "*scanlines:  " DEF_SCANLINES   "\n" \
-                       "*speed:      " DEF_SPEED       "\n" \
-                       "*angle:      " DEF_ANGLE       "\n" \
-                       "*ballSize:   " DEF_SIZE        "\n" \
-                       "*meridians:  " DEF_MERIDIANS   "\n" \
-                       "*parallels:  " DEF_PARALLELS   "\n" \
-                       "*tiles:      " DEF_TILES       "\n" \
-                       "*thickness:  " DEF_THICKNESS   "\n" \
-                       "*ballColor1: " DEF_BALL_COLOR1 "\n" \
-                       "*ballColor2: " DEF_BALL_COLOR2 "\n" \
-                       "*gridColor:  " DEF_GRID_COLOR  "\n" \
-                       "*shadowColor:" DEF_SHADOW_COLOR"\n" \
-                       ".background: " DEF_BACKGROUND  "\n" \
-
-#undef countof
-#define countof(x) (sizeof((x))/sizeof((*x)))
-
-#include "xlockmore.h"
-#include "gltrackball.h"
-#include <ctype.h>
-
-#ifdef USE_GL /* whole file */
-
-#include <GL/glu.h>
-
 typedef struct { GLfloat x, y, z; } XYZ;
 
 typedef struct {
@@ -154,10 +127,11 @@ static argtype vars[] = {
   {&ball_color2_str, "ballColor2", "BallColor2", DEF_BALL_COLOR2, t_String},
   {&grid_color_str,  "gridColor",  "GridColor",  DEF_GRID_COLOR,  t_String},
   {&shadow_str,      "shadowColor","ShadowColor",DEF_SHADOW_COLOR,t_String},
-  {&bg_str,          "background", "Background", DEF_BACKGROUND,  t_String},
+  /* dammit, -background is too magic... */
+  {&bg_str,        "boingBackground", "Background", DEF_BACKGROUND, t_String},
 };
 
-ModeSpecOpt sws_opts = {countof(opts), opts, countof(vars), vars, NULL};
+ENTRYPOINT ModeSpecOpt boing_opts = {countof(opts), opts, countof(vars), vars, NULL};
 
 static void
 parse_color (ModeInfo *mi, const char *name, const char *s, GLfloat *a)
@@ -220,14 +194,14 @@ draw_box (ModeInfo *mi)
   /* boing_configuration *bp = &bps[MI_SCREEN(mi)]; */
   glPushMatrix();
   glTranslatef (0, 0, -0.5);
-  glFrontFace (GL_CCW);
+/*  glFrontFace (GL_CCW);*/
   draw_grid (mi);
   glPopMatrix();
 
   glPushMatrix();
   glRotatef (90, 1, 0, 0);
   glTranslatef (0, 0, 0.5);
-  glFrontFace (GL_CW);
+/*  glFrontFace (GL_CW);*/
   draw_grid (mi);
   glPopMatrix();
 }
@@ -473,7 +447,7 @@ tick_physics (ModeInfo *mi)
 
 /* Window management, etc
  */
-void
+ENTRYPOINT void
 reshape_boing (ModeInfo *mi, int width, int height)
 {
   GLfloat h = (GLfloat) height / (GLfloat) width;
@@ -497,7 +471,7 @@ reshape_boing (ModeInfo *mi, int width, int height)
 }
 
 
-Bool
+ENTRYPOINT Bool
 boing_handle_event (ModeInfo *mi, XEvent *event)
 {
   boing_configuration *bp = &bps[MI_SCREEN(mi)];
@@ -519,7 +493,9 @@ boing_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 (bp->trackball, event->xbutton.button, 10,
                               !!event->xbutton.state);
@@ -538,7 +514,7 @@ boing_handle_event (ModeInfo *mi, XEvent *event)
 }
 
 
-void 
+ENTRYPOINT void 
 init_boing (ModeInfo *mi)
 {
   boing_configuration *bp;
@@ -629,7 +605,7 @@ init_boing (ModeInfo *mi)
 }
 
 
-void
+ENTRYPOINT void
 draw_boing (ModeInfo *mi)
 {
   boing_configuration *bp = &bps[MI_SCREEN(mi)];
@@ -639,13 +615,13 @@ draw_boing (ModeInfo *mi)
   if (!bp->glx_context)
     return;
 
+  glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(bp->glx_context));
+
   mi->polygon_count = 0;
 
   glShadeModel(GL_SMOOTH);
 
   glEnable(GL_NORMALIZE);
-  glEnable(GL_CULL_FACE);
-  glEnable (GL_DEPTH_TEST);
 
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
@@ -657,8 +633,20 @@ draw_boing (ModeInfo *mi)
 
   glLightfv (GL_LIGHT0, GL_POSITION, bp->lightpos);
 
+  glDisable (GL_CULL_FACE);
+  glDisable (GL_DEPTH_TEST);
+
+  glEnable (GL_LINE_SMOOTH);
+  glHint (GL_LINE_SMOOTH_HINT, GL_NICEST);
+  glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+  glEnable (GL_BLEND);
+
   draw_box (mi);
   draw_shadow (mi);
+
+  glEnable (GL_CULL_FACE);
+  glEnable (GL_DEPTH_TEST);
+
   draw_ball (mi);
   if (scanlines_p)
     draw_scanlines (mi);
@@ -671,4 +659,6 @@ draw_boing (ModeInfo *mi)
   glXSwapBuffers(dpy, window);
 }
 
+XSCREENSAVER_MODULE ("Boing", boing)
+
 #endif /* USE_GL */