by Jamie Zawinski <jwz@jwz.org>, 22-Jan-2001.
*/
-#include "config.h"
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#ifdef HAVE_COCOA
+# include "jwxyz.h"
+#elif defined(HAVE_ANDROID)
+# include <GLES/gl.h>
+#else /* real Xlib */
+# include <GL/glx.h>
+# include <GL/glu.h>
+#endif /* !HAVE_COCOA */
+
+#ifdef HAVE_JWZGLES
+# include "jwzgles.h"
+#endif /* HAVE_JWZGLES */
-#include <stdio.h>
#include <stdlib.h>
-#include <string.h>
-#include <math.h>
+#include "stonerview.h"
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/Xatom.h>
-#include <X11/keysym.h>
-#include <GL/gl.h>
-#include <GL/glx.h>
-
-#include "vroot.h" /* handle virtual root windows --- very important */
-
-#include "version.h" /* get the xscreensaver package's version number */
-#include "yarandom.h" /* use xscreensaver's RNG */
-
-#include "stonerview-osc.h"
-#include "stonerview-move.h"
-
-static char *progclass = "StonerView";
-static char *progname = 0;
-
-#define FRAMERATE (50) /* milliseconds per frame */
-
-static GLfloat view_rotx = -45.0, view_roty = 0.0, view_rotz = 0.0;
+static GLfloat view_rotx = -45.0, view_roty = 0.0, view_rotz = 15.0;
static GLfloat view_scale = 4.0;
-/* static GLint prevtime = 0; / * for timing */
-
-static void setup_window(void);
-
-void win_draw(void);
-static void win_reshape(int width, int height);
-/* static void win_visible(int vis); */
-/* static void win_idle(void); */
-static void handle_events(void);
-
-static Display *dpy;
-static Window window;
-static int wireframe = 0;
-
-static Atom XA_WM_PROTOCOLS, XA_WM_DELETE_WINDOW;
-
-
-static void
-usage (void)
-{
- fprintf (stderr, "usage: %s [--wire] [--geom G | --root | --window-id ID]\n",
- progname);
- exit (1);
-}
-
-
-/* mostly lifted from xscreensaver/utils/visual.c... */
-static int
-visual_depth (Display *dpy, int screen, Visual *visual)
-{
- XVisualInfo vi_in, *vi_out;
- int out_count, d;
- vi_in.screen = screen;
- vi_in.visualid = XVisualIDFromVisual (visual);
- vi_out = XGetVisualInfo (dpy, VisualScreenMask|VisualIDMask,
- &vi_in, &out_count);
- if (! vi_out) abort ();
- d = vi_out [0].depth;
- XFree ((char *) vi_out);
- return d;
-}
-/* mostly lifted from xscreensaver/hacks/screenhack.c... */
-static char *make_title_string (void)
+stonerview_state *
+stonerview_init_view(int wireframe_p, int transparent_p)
{
- char version[255];
- char *v = (char *) strdup(strchr(screensaver_id, ' '));
- char *s1, *s2, *s3, *s4;
- s1 = (char *) strchr(v, ' '); s1++;
- s2 = (char *) strchr(s1, ' ');
- s3 = (char *) strchr(v, '('); s3++;
- s4 = (char *) strchr(s3, ')');
- *s2 = 0;
- *s4 = 0;
- sprintf (version, "%s: from the XScreenSaver %s distribution (%s.)",
- progclass, s1, s3);
- return (strdup(version));
-}
-
-
-int init_view(int *argc, char *argv[])
-{
- int ix;
- int fullscreen = 0;
- int on_root = 0;
- Window on_window = 0;
-
- int undef = -65536;
- int x = undef, y = undef;
- int w = 500, h = 500;
- char *dpystr = (char *) getenv ("DISPLAY");
- char *geom = 0;
- int screen;
- Visual *visual = 0;
- XWindowAttributes xgwa;
- XSetWindowAttributes xswa;
- unsigned long xswa_mask = 0;
- XSizeHints hints;
- GLXContext glx_context = 0;
-
- progname = argv[0];
-
- memset (&hints, 0, sizeof(hints));
-
- for (ix=1; ix<*argc; ix++)
- {
- if (argv[ix][0] == '-' && argv[ix][1] == '-')
- argv[ix]++;
- if (!strcmp(argv[ix], "-geometry") ||
- !strcmp(argv[ix], "-geom"))
- {
- if (on_root || fullscreen) usage();
- geom = argv[++ix];
- }
- else if (!strcmp(argv[ix], "-display") ||
- !strcmp(argv[ix], "-disp") ||
- !strcmp(argv[ix], "-dpy") ||
- !strcmp(argv[ix], "-d"))
- dpystr = argv[++ix];
- else if (!strcmp(argv[ix], "-root"))
- {
- if (geom || fullscreen) usage();
- on_root = 1;
- }
- else if (!strcmp(argv[ix], "-window-id") &&
- *argc > ix+1)
- {
- unsigned long id;
- char c;
- if (1 != sscanf (argv[ix+1], "%lu %c", &id, &c) &&
- 1 != sscanf (argv[ix+1], "0x%lx %c", &id, &c))
- usage();
- ix++;
- on_window = (Window) id;
- }
- else if (!strcmp(argv[ix], "-fullscreen") ||
- !strcmp(argv[ix], "-full"))
- {
- if (on_root || geom) usage();
- fullscreen = 1;
- }
- else if (!strcmp(argv[ix], "-wireframe") ||
- !strcmp(argv[ix], "-wire"))
- {
- wireframe = 1;
- }
- else
- {
- usage();
- }
- }
-
- dpy = XOpenDisplay (dpystr);
- if (!dpy) exit (1);
-
- screen = DefaultScreen (dpy);
-
- XA_WM_PROTOCOLS = XInternAtom (dpy, "WM_PROTOCOLS", False);
- XA_WM_DELETE_WINDOW = XInternAtom (dpy, "WM_DELETE_WINDOW", False);
-
- if (on_root || on_window)
- {
- window = (on_window ? on_window : RootWindow (dpy, screen));
- XGetWindowAttributes (dpy, window, &xgwa);
- visual = xgwa.visual;
- w = xgwa.width;
- h = xgwa.height;
- }
- else
- {
- int ww = WidthOfScreen (DefaultScreenOfDisplay (dpy));
- int hh = HeightOfScreen (DefaultScreenOfDisplay (dpy));
+ stonerview_state *st = (stonerview_state *) calloc (1, sizeof(*st));
- if (fullscreen)
- {
- w = ww;
- h = hh;
- }
- else if (geom)
- {
- /* Since we're not linking against Xt or GLUT, we get to parse
- the `-geometry' argument ourselves. YAY.
- */
- char c;
- if (4 == sscanf (geom, "=%dx%d+%d+%d%c", &w, &h, &x, &y, &c))
- ;
- else if (4 == sscanf (geom, "=%dx%d-%d+%d%c", &w, &h, &x, &y, &c))
- x = ww-w-x;
- else if (4 == sscanf (geom, "=%dx%d+%d-%d%c", &w, &h, &x, &y, &c))
- y = hh-h-y;
- else if (4 == sscanf (geom, "=%dx%d-%d-%d%c", &w, &h, &x, &y, &c))
- x = ww-w-x, y = hh-h-y;
- else if (2 == sscanf (geom, "=%dx%d%c", &w, &h, &c))
- ;
- else if (2 == sscanf (geom, "+%d+%d%c", &x, &y, &c))
- ;
- else if (2 == sscanf (geom, "-%d+%d%c", &x, &y, &c))
- x = ww-w-x;
- else if (2 == sscanf (geom, "+%d-%d%c", &x, &y, &c))
- y = hh-h-y;
- else if (2 == sscanf (geom, "-%d-%d%c", &x, &y, &c))
- x = ww-w-x, y = hh-h-y;
- else
- {
- fprintf (stderr, "%s: unparsable geometry: %s\n",
- progname, geom);
- exit (1);
- }
+ st->wireframe = wireframe_p;
+ st->transparent = transparent_p;
+ st->num_els = NUM_ELS;
+ st->elist = (stonerview_elem_t *) calloc (st->num_els, sizeof(*st->elist));
- hints.flags = USSize;
- hints.width = w;
- hints.height = h;
- if (x != undef && y != undef)
- {
- hints.flags |= USPosition;
- hints.x = x;
- hints.y = y;
- }
- }
+ st->osctail = &st->oscroot;
- /* Pick a good GL visual */
- {
-# define R GLX_RED_SIZE
-# define G GLX_GREEN_SIZE
-# define B GLX_BLUE_SIZE
-# define D GLX_DEPTH_SIZE
-# define I GLX_BUFFER_SIZE
-# define DB GLX_DOUBLEBUFFER
+ /* for trackball, two-sided lighting and no face culling */
+ glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
- int attrs[][20] = {
- { GLX_RGBA, R, 8, G, 8, B, 8, D, 8, DB, 0 }, /* rgb double */
- { GLX_RGBA, R, 4, G, 4, B, 4, D, 4, DB, 0 },
- { GLX_RGBA, R, 2, G, 2, B, 2, D, 2, DB, 0 },
- { GLX_RGBA, R, 8, G, 8, B, 8, D, 8, 0 }, /* rgb single */
- { GLX_RGBA, R, 4, G, 4, B, 4, D, 4, 0 },
- { GLX_RGBA, R, 2, G, 2, B, 2, D, 2, 0 },
- { I, 8, D, 8, DB, 0 }, /* cmap double */
- { I, 4, D, 4, DB, 0 },
- { I, 8, D, 8, 0 }, /* cmap single */
- { I, 4, D, 4, 0 },
- { GLX_RGBA, R, 1, G, 1, B, 1, D, 1, 0 } /* monochrome */
- };
-
- int i;
- for (i = 0; i < sizeof(attrs)/sizeof(*attrs); i++)
- {
- XVisualInfo *vi = glXChooseVisual (dpy, screen, attrs[i]);
- if (vi)
- {
- visual = vi->visual;
- XFree (vi);
- break;
- }
- }
- if (!visual)
- {
- fprintf (stderr, "%s: unable to find a GL visual\n", progname);
- exit (1);
- }
- }
-
-
- if (x == undef) x = 0;
- if (y == undef) y = 0;
-
- xswa_mask = (CWEventMask | CWColormap |
- CWBackPixel | CWBackingPixel | CWBorderPixel );
- xswa.colormap = XCreateColormap (dpy, RootWindow (dpy, screen),
- visual, AllocNone);
- xswa.background_pixel = BlackPixel (dpy, screen);
- xswa.backing_pixel = xswa.background_pixel;
- xswa.border_pixel = xswa.background_pixel;
- xswa.event_mask = (KeyPressMask | ButtonPressMask | StructureNotifyMask);
-
- window = XCreateWindow (dpy, RootWindow (dpy, screen),
- x, y, w, h, 0,
- visual_depth (dpy, screen, visual),
- InputOutput, visual,
- xswa_mask, &xswa);
-
- {
- XWMHints wmhints;
-
- XTextProperty tp1, tp2;
- char *v = make_title_string ();
- XStringListToTextProperty (&v, 1, &tp1);
- XStringListToTextProperty (&progclass, 1, &tp2);
- wmhints.flags = InputHint;
- wmhints.input = True;
- XSetWMProperties (dpy, window, &tp1, &tp2, argv, *argc, &hints,
- &wmhints, 0);
- free (v);
- }
-
- XChangeProperty (dpy, window, XA_WM_PROTOCOLS, XA_ATOM, 32,
- PropModeReplace,
- (unsigned char *) &XA_WM_DELETE_WINDOW, 1);
-
- XMapRaised (dpy, window);
- XSync (dpy, False);
- }
-
-
- /* Now hook up to GLX */
- {
- XVisualInfo vi_in, *vi_out;
- int out_count;
- vi_in.screen = screen;
- vi_in.visualid = XVisualIDFromVisual (visual);
- vi_out = XGetVisualInfo (dpy, VisualScreenMask|VisualIDMask,
- &vi_in, &out_count);
- if (! vi_out) abort ();
-
- glx_context = glXCreateContext (dpy, vi_out, 0, GL_TRUE);
- XFree((char *) vi_out);
-
- if (!glx_context)
- {
- fprintf(stderr, "%s: couldn't create GL context for root window.\n",
- progname);
- exit(1);
- }
-
- glXMakeCurrent (dpy, window, glx_context);
- }
-
- setup_window();
- win_reshape(w, h);
-
- return 1;
-}
-
-static void setup_window(void)
-{
glEnable(GL_CULL_FACE);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_DEPTH_TEST);
glEnable(GL_NORMALIZE);
+
+ glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
+ glEnable(GL_LINE_SMOOTH);
+ glEnable(GL_BLEND);
+
+ if (st->transparent)
+ glBlendFunc(GL_SRC_ALPHA,GL_ONE);
+
+ return st;
}
/* callback: draw everything */
-void win_draw(void)
+void
+stonerview_win_draw(stonerview_state *st)
{
int ix;
- static GLfloat white[] = { 1.0, 1.0, 1.0, 1.0 };
- static GLfloat gray[] = { 0.6, 0.6, 0.6, 1.0 };
+ static const GLfloat white[] = { 1.0, 1.0, 1.0, 1.0 };
+ static const GLfloat gray[] = { 0.6, 0.6, 0.6, 1.0 };
glDrawBuffer(GL_BACK);
glShadeModel(GL_FLAT);
- for (ix=0; ix<NUM_ELS; ix++) {
- elem_t *el = &elist[ix];
+ for (ix=0; ix < st->num_els; ix++) {
+ stonerview_elem_t *el = &st->elist[ix];
glNormal3f(0.0, 0.0, 1.0);
/* outline the square */
- glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, (wireframe ? white : gray));
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, (st->wireframe ? white : gray));
glBegin(GL_LINE_LOOP);
glVertex3f(el->pos[0]-el->vervec[0], el->pos[1]-el->vervec[1], el->pos[2]);
glVertex3f(el->pos[0]+el->vervec[1], el->pos[1]-el->vervec[0], el->pos[2]);
glVertex3f(el->pos[0]-el->vervec[1], el->pos[1]+el->vervec[0], el->pos[2]);
glEnd();
- if (wireframe) continue;
+ if (st->wireframe) continue;
/* fill the square */
- glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, el->col);
+ {
+ GLfloat col[4];
+ col[0] = el->col[0]; col[1] = el->col[1];
+ col[2] = el->col[2]; col[3] = el->col[3];
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, col);
+ }
glBegin(GL_QUADS);
glVertex3f(el->pos[0]-el->vervec[0], el->pos[1]-el->vervec[1], el->pos[2]);
glVertex3f(el->pos[0]+el->vervec[1], el->pos[1]-el->vervec[0], el->pos[2]);
}
glPopMatrix();
-
- glFinish();
- glXSwapBuffers(dpy, window);
-
- handle_events();
}
-
-/* callback: new window size or exposure */
-static void win_reshape(int width, int height)
+void
+stonerview_win_release(stonerview_state *st)
{
- GLfloat h = (GLfloat) height / (GLfloat) width;
-
- glViewport(0, 0, (GLint) width, (GLint) height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -40.0);
-}
-
-
-static void
-handle_events (void)
-{
- while (XPending (dpy))
- {
- XEvent E;
- XEvent *event = &E;
- XNextEvent (dpy, event);
- switch (event->xany.type)
- {
- case ConfigureNotify:
- {
- XWindowAttributes xgwa;
- XGetWindowAttributes (dpy, window, &xgwa);
- win_reshape (xgwa.width, xgwa.height);
- break;
- }
- case KeyPress:
- {
- KeySym keysym;
- char c = 0;
- XLookupString (&event->xkey, &c, 1, &keysym, 0);
- if (c == 'q' ||
- c == 'Q' ||
- c == 3 || /* ^C */
- c == 27) /* ESC */
- exit (0);
- else if (! (keysym >= XK_Shift_L && keysym <= XK_Hyper_R))
- XBell (dpy, 0); /* beep for non-chord keys */
- }
- break;
- case ButtonPress:
- XBell (dpy, 0);
- break;
- case ClientMessage:
- {
- if (event->xclient.message_type != XA_WM_PROTOCOLS)
- {
- char *s = XGetAtomName(dpy, event->xclient.message_type);
- if (!s) s = "(null)";
- fprintf (stderr, "%s: unknown ClientMessage %s received!\n",
- progname, s);
- }
- else if (event->xclient.data.l[0] != XA_WM_DELETE_WINDOW)
- {
- char *s1 = XGetAtomName(dpy, event->xclient.message_type);
- char *s2 = XGetAtomName(dpy, event->xclient.data.l[0]);
- if (!s1) s1 = "(null)";
- if (!s2) s2 = "(null)";
- fprintf (stderr,"%s: unknown ClientMessage %s[%s] received!\n",
- progname, s1, s2);
- }
- else
- {
- exit (0);
- }
- }
- break;
- }
- }
+ free (st->elist);
+ /*free (st->oscroot); -- #### how do we free this? */
+ free (st);
}
projects / xscreensaver / blobdiff