From http://www.jwz.org/xscreensaver/xscreensaver-5.37.tar.gz

[xscreensaver] / hacks / glx / b_lockglue.c

diff --git a/hacks/glx/b_lockglue.c b/hacks/glx/b_lockglue.c
index c85e3500d810c83ad8348122e019cc8e448c9cde..a6236c64a9320cf4ec4a664323b8bf1984d8e22d 100644 (file)
--- a/hacks/glx/b_lockglue.c
+++ b/hacks/glx/b_lockglue.c
@@ -14,6 +14,7 @@ static const char sccsid[] = "@(#)b_lockglue.c  4.11 98/06/16 xlockmore";
  */
 struct glb_config glb_config =
 {
+        0,                     /* transparent_p */
 #if GLB_SLOW_GL
        2,                      /* subdivision_depth */
 #else
@@ -33,28 +34,16 @@ struct glb_config glb_config =
        1.5,                    /* scale_factor */
        -4,                     /* screen_bottom */
        4,                      /* screen_top */
-#if 0
-       {0.1, 0.0, 0.4, 0.0},   /* bg_colour */
-#else
-       {0.0, 0.0, 0.0, 0.0},   /* bg_colour */
-#endif
-#if 0
-       {0.7, 0.7, 0.0, 0.3}    /* bubble_colour */
-#else
        {0.0, 0.0, 0.7, 0.3}    /* bubble_colour */
-#endif
 };
 
 #ifdef STANDALONE
-#define PROGCLASS "Bubble3D"
-#define HACK_INIT init_bubble3d
-#define HACK_RESHAPE reshape_bubble3d
-#define HACK_DRAW draw_bubble3d
-#define bubble3d_opts xlockmore_opts
-
 # define DEFAULTS      "*delay:        10000   \n"     \
                        "*showFPS:      False   \n"
 
+# define refresh_bubble3d 0
+# define release_bubble3d 0
+# define bubble3d_handle_event 0
 #include "xlockmore.h"
 #else
 #include "xlock.h"
@@ -63,15 +52,35 @@ struct glb_config glb_config =
 
 #ifdef USE_GL
 
-ModeSpecOpt bubble3d_opts =
-{0, NULL, 0, NULL, NULL};
+
+#define DEF_TRANSPARENT "True"
+#define DEF_BUBBLECOLOR "random"
+
+static Bool transparent_p;
+static char *bubble_color_str;
+
+#undef countof
+#define countof(x) (sizeof((x))/sizeof((*x)))
+
+static XrmOptionDescRec opts[] = {
+  { "-transparent",  ".transparent",   XrmoptionNoArg, "True" },
+  { "+transparent",  ".transparent",   XrmoptionNoArg, "False" },
+  { "-color",        ".bubblecolor",   XrmoptionSepArg, 0 },
+};
+
+static argtype vars[] = {
+  {&transparent_p,   "transparent", "Transparent", DEF_TRANSPARENT, t_Bool},
+  {&bubble_color_str,        "bubblecolor", "BubbleColor", DEF_BUBBLECOLOR, t_String},
+};
+
+ENTRYPOINT ModeSpecOpt bubble3d_opts = {countof(opts), opts, countof(vars), vars, NULL};
 
 #ifdef USE_MODULES
 ModStruct   bubbles3d_description =
 {"bubbles3d",
  "init_bubble3d",
  "draw_bubble3d",
- "release_bubble3d",
+ NULL,
  "change_bubble3d",
  "init_bubble3d",
  NULL,
@@ -91,14 +100,45 @@ struct context {
 
 static struct context *contexts = 0;
 
+static void
+parse_color (ModeInfo *mi, const char *name, const char *s, GLfloat *a)
+{
+  XColor c;
+
+  if (! XParseColor (MI_DISPLAY(mi), MI_COLORMAP(mi), s, &c))
+    {
+      fprintf (stderr, "%s: can't parse %s color %s", progname, name, s);
+      exit (1);
+    }
+  a[0] = c.red   / 65536.0;
+  a[1] = c.green / 65536.0;
+  a[2] = c.blue  / 65536.0;
+}
+
+static void
+init_colors(ModeInfo *mi)
+{
+       if (strncasecmp(bubble_color_str, "auto", strlen("auto")) == 0) {
+               glb_config.bubble_colour[0] = ((float) (NRAND(100)) / 100.0);
+               glb_config.bubble_colour[1] = ((float) (NRAND(100)) / 100.0);
+               /* I keep more blue */
+               glb_config.bubble_colour[2] = ((float) (NRAND(50)) / 100.0) + 0.50;
+       } else if (strncasecmp(bubble_color_str, "random", strlen("random")) == 0) {
+           glb_config.bubble_colour[0] = -1.0;
+       } else {
+               parse_color(mi, "bubble", bubble_color_str, glb_config.bubble_colour);
+       }
+}
+
 static void
 init(struct context *c)
 {
+        glb_config.transparent_p = transparent_p;
        glb_sphere_init();
        c->draw_context = glb_draw_init();
 }
 
-void
+ENTRYPOINT void
 reshape_bubble3d(ModeInfo *mi, int w, int h)
 {
        glViewport(0, 0, (GLsizei) w, (GLsizei) h);
@@ -116,7 +156,9 @@ do_display(struct context *c)
        glb_draw_step(c->draw_context);
 }
 
-void
+static void free_bubble3d(ModeInfo * mi);
+
+ENTRYPOINT void
 init_bubble3d(ModeInfo * mi)
 {
        Display    *display = MI_DISPLAY(mi);
@@ -124,14 +166,10 @@ init_bubble3d(ModeInfo * mi)
        int         screen = MI_SCREEN(mi);
        struct context *c;
 
-       if (contexts == 0) {
-               contexts = (struct context *) malloc(sizeof (struct context) * MI_NUM_SCREENS(mi));
-
-               if (contexts == 0)
-                       return;
-       }
+       MI_INIT (mi, contexts, free_bubble3d);
        c = &contexts[screen];
        c->glx_context = init_GL(mi);
+       init_colors(mi);
        if (c->glx_context != 0) {
                init(c);
                reshape_bubble3d(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
@@ -142,7 +180,7 @@ init_bubble3d(ModeInfo * mi)
                MI_CLEARWINDOW(mi);
 }
 
-void
+ENTRYPOINT void
 draw_bubble3d(ModeInfo * mi)
 {
        struct context *c = &contexts[MI_SCREEN(mi)];
@@ -156,30 +194,44 @@ draw_bubble3d(ModeInfo * mi)
 
        glXMakeCurrent(display, window, *(c->glx_context));
 
+        glb_config.polygon_count = 0;
+        glPushMatrix();
+
+# ifdef HAVE_MOBILE    /* Keep it the same relative size when rotated. */
+        {
+          GLfloat h = MI_HEIGHT(mi) / (GLfloat) MI_WIDTH(mi);
+          int o = (int) current_device_rotation();
+          if (o != 0 && o != 180 && o != -180)
+            glScalef (1/h, 1/h, 1/h);
+          glRotatef(o, 0, 0, 1);
+        }
+# endif
+
        do_display(c);
+        glPopMatrix();
+        mi->polygon_count = glb_config.polygon_count;
 
         if (mi->fps_p) do_fps (mi);
        glFinish();
        glXSwapBuffers(display, window);
 }
 
-void
+#ifndef STANDALONE
+ENTRYPOINT void
 change_bubble3d(ModeInfo * mi)
 {
        /* nothing */
 }
+#endif /* !STANDALONE */
 
-void
-release_bubble3d(ModeInfo * mi)
+static void
+free_bubble3d(ModeInfo * mi)
 {
-       struct context *c = &contexts[MI_SCREEN(mi)];
-
-       if (contexts != 0) {
-               glb_draw_end(c->draw_context);
-               (void) free((void *) contexts);
-               contexts = 0;
-       }
-       FreeAllGL(mi);
+  struct context *c = &contexts[MI_SCREEN(mi)];
+  if (c->draw_context)
+    glb_draw_end(c->draw_context);
 }
 
+XSCREENSAVER_MODULE ("Bubble3D", bubble3d)
+
 #endif /* USE_GL */