6.09HEADmaster

1 files changed, 0 insertions, 523 deletions

diff --git a/hacks/glx/flipscreen3d.c b/hacks/glx/flipscreen3d.c
deleted file mode 100644
index 4de26de..0000000
--- a/hacks/glx/flipscreen3d.c
+++ /dev/null
@@ -1,523 +0,0 @@
-/*
- * flipscreen3d - takes snapshots of the screen and flips it around
- *
- * version 1.0 - Oct 24, 2001
- *
- * Copyright (C) 2001 Ben Buxton (bb@cactii.net)
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation.  No representations are made about the suitability of this
- * software for any purpose.  It is provided "as is" without express or
- * implied warranty.
- */
-
-#ifdef STANDALONE
-#define DEFAULTS "*delay:     20000 \n" \
-                 "*showFPS:   False \n" \
-                 "*wireframe: False \n" \
-                 "*useSHM:    True  \n" \
-		 "*suppressRotationAnimation: True\n" \
-
-# define release_screenflip 0
-# include "xlockmore.h"                         /* from the xscreensaver distribution */
-# include "gltrackball.h"
-#else  /* !STANDALONE */
-# include "xlock.h"                                     /* from the xlockmore distribution */
-#endif /* !STANDALONE */
-
-/* lifted from lament.c */
-#define RAND(n) ((long) ((random() & 0x7fffffff) % ((long) (n))))
-#define RANDSIGN() ((random() & 1) ? 1 : -1)
-
-
-#ifdef USE_GL
-
-/* Should be in <GL/glext.h> */
-# ifndef  GL_TEXTURE_MAX_ANISOTROPY_EXT
-#  define GL_TEXTURE_MAX_ANISOTROPY_EXT     0x84FE
-# endif
-# ifndef  GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT
-#  define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF
-# endif
-
-#define DEF_ROTATE "True"
-static int rotate;
-
-#define QW 12
-#define QH 12
-
-static XrmOptionDescRec opts[] = {
-  {"+rotate", ".screenflip.rotate", XrmoptionNoArg, "false" },
-  {"-rotate", ".screenflip.rotate", XrmoptionNoArg, "true" },
-};
-
-
-static argtype vars[] = {
-  {&rotate, "rotate", "Rotate", DEF_ROTATE, t_Bool},
-};
-
-
-
-ENTRYPOINT ModeSpecOpt screenflip_opts = {countof(opts), opts, countof(vars), vars, NULL};
-
-
-#ifdef USE_MODULES
-ModStruct   screenflip_description =
-{"screenflip", "init_screenflip", "draw_screenflip", NULL,
- "draw_screenflip", "init_screenflip", NULL, &screenflip_opts,
- 1000, 1, 2, 1, 4, 1.0, "",
- "Screenflips", 0, NULL};
-
-#endif
-
-
-typedef struct {
-  GLXContext *glx_context;
-  Window window;
-
-  int winw, winh;
-  int tw, th; /* texture width, height */
-  GLfloat min_tx, min_ty;
-  GLfloat max_tx, max_ty;
-  GLfloat qx, qy, qw, qh; /* the quad we'll draw */
-
-  int regrab;
-  int fadetime; /* fade before regrab */
-
-  trackball_state *trackball;
-  Bool button_down_p;
-
-  GLfloat show_colors[4];
-  GLfloat stretch_val_x, stretch_val_y;
-  GLfloat stretch_val_dx, stretch_val_dy;
-
-  GLfloat curx, cury, curz;
-
-  GLfloat rx, ry, rz;
-  GLfloat rot, drot, odrot, ddrot, orot;
-  float theta, rho, dtheta, drho, gamma, dgamma;
-
-  GLuint texid;
-  Bool mipmap_p;
-  Bool waiting_for_image_p;
-  Bool first_image_p;
-
-  GLfloat anisotropic;
-
-} Screenflip;
-
-static Screenflip *screenflip = NULL;
-
-#include "grab-ximage.h"
-
-static const GLfloat viewer[] = {0.0, 0.0, 15.0};
-
-
-static void getSnapshot (ModeInfo *);
-
-
-ENTRYPOINT Bool
-screenflip_handle_event (ModeInfo *mi, XEvent *event)
-{
-  Screenflip *c = &screenflip[MI_SCREEN(mi)];
-
-  if (gltrackball_event_handler (event, c->trackball,
-                                 MI_WIDTH (mi), MI_HEIGHT (mi),
-                                 &c->button_down_p))
-    return True;
-  else if (screenhack_event_helper (MI_DISPLAY(mi), MI_WINDOW(mi), event))
-    {
-      if (!c->waiting_for_image_p)
-        {
-          getSnapshot (mi);
-          return True;
-        }
-    }
-
-  return False;
-}
-
-
-/* draw the texture mapped quad (actually two back to back)*/
-static void showscreen(Screenflip *c, int frozen, int wire)
-{
-  GLfloat x, y, w, h;
-
-  if (c->fadetime) {
-/*    r -= 0.02; g -= 0.02; b -= 0.02; */
-    c->show_colors[3] -= 0.02;
-    if (c->show_colors[3] < 0) {
-      c->regrab = 1;
-      c->fadetime = 0;
-    }
-  } else if (c->show_colors[3] < 0) {
-    c->show_colors[0] = c->show_colors[1] = 
-      c->show_colors[2] = c->show_colors[3] = 1;
-    c->stretch_val_x = c->stretch_val_y = 
-      c->stretch_val_dx = c->stretch_val_dy = 0;
-  }
-  if (c->stretch_val_dx == 0 && !frozen && !(random() % 25))
-    c->stretch_val_dx = (float)(random() % 100) / 5000;
-  if (c->stretch_val_dy == 0 && !frozen && !(random() % 25))
-    c->stretch_val_dy = (float)(random() % 100) / 5000;
-    
-  x = c->qx;
-  y = c->qy;
-  w = c->qx+c->qw;
-  h = c->qy-c->qh;
-
-  if (!frozen) {
-     w *= sin (c->stretch_val_x) + 1;
-     x *= sin (c->stretch_val_x) + 1;
-     if (!c->button_down_p) {
-     if (!c->fadetime) c->stretch_val_x += c->stretch_val_dx;
-     if (c->stretch_val_x > 2*M_PI && !(random() % 5))
-       c->stretch_val_dx = (float)(random() % 100) / 5000;
-     else
-       c->stretch_val_x -= 2*M_PI;
-     }
-
-     if (!c->button_down_p && !c->fadetime) c->stretch_val_y += c->stretch_val_dy;
-     h *= sin (c->stretch_val_y) / 2 + 1;
-     y *= sin (c->stretch_val_y) / 2 + 1;
-     if (!c->button_down_p) {
-     if (c->stretch_val_y > 2*M_PI && !(random() % 5))
-       c->stretch_val_dy = (float)(random() % 100) / 5000;
-     else
-       c->stretch_val_y -= 2*M_PI;
-     }
-  }
-
-  glColor4f(c->show_colors[0], c->show_colors[1], 
-            c->show_colors[2], c->show_colors[3]);
-
-  if (!wire)
-    {
-      glEnable(GL_TEXTURE_2D);
-      glEnable(GL_BLEND);
-      glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-      glDepthMask(GL_FALSE);
-    }
-
-  glBegin(wire ? GL_LINE_LOOP : GL_QUADS);
-
-  glNormal3f(0, 0, 1);
-  glTexCoord2f(c->max_tx, c->max_ty); glVertex3f(w, h, 0);
-  glTexCoord2f(c->max_tx, c->min_ty); glVertex3f(w, y, 0);
-  glTexCoord2f(c->min_tx, c->min_ty); glVertex3f(x, y, 0);
-  glTexCoord2f(c->min_tx, c->max_ty); glVertex3f(x, h, 0);
-
-  glNormal3f(0, 0, -1);
-  glTexCoord2f(c->min_tx, c->min_ty); glVertex3f(x, y, -0.05);
-  glTexCoord2f(c->max_tx, c->min_ty); glVertex3f(w, y, -0.05);
-  glTexCoord2f(c->max_tx, c->max_ty); glVertex3f(w, h, -0.05);
-  glTexCoord2f(c->min_tx, c->max_ty); glVertex3f(x, h, -0.05);
-  glEnd();
-
-
-  glDisable(GL_TEXTURE_2D);
-  glDepthMask(GL_TRUE);
-
-  glBegin(GL_LINE_LOOP);
-   glVertex3f(x, y, 0);
-   glVertex3f(x, h, 0);
-   glVertex3f(w, h, 0);
-   glVertex3f(w, y, 0);
- glEnd();
-  glDisable(GL_BLEND);
-
-}
-
-/* This function is responsible for 'zooming back' the square after
- * a new chunk has been grabbed with getSnapshot(), and positioning
- * it suitably on the screen. Once positioned (where we begin to rotate),
- * it just does a glTranslatef() and returns 1
- */
-
-static int inposition(Screenflip *c)
-{
-  GLfloat wx;
-  GLfloat wy;
-  wx = 0 - (c->qw/2);
-  wy = (c->qh/2);
-
-  if (c->curx == 0) c->curx = c->qx;
-  if (c->cury == 0) c->cury = c->qy;
-  if (c->regrab) {
-     c->curz = 0;
-     c->curx = c->qx;
-     c->cury = c->qy;
-     c->regrab = 0;
-  }
-  if (c->curz > -10 || c->curx > wx + 0.1 || c->curx < wx - 0.1 ||
-         c->cury > wy + 0.1 || c->cury < wy - 0.1) {
-    if (c->curz > -10)
-      c->curz -= 0.05;
-    if (c->curx > wx) {
-       c->qx -= 0.02;
-       c->curx -= 0.02;
-    }
-    if (c->curx < wx) {
-       c->qx += 0.02;
-       c->curx += 0.02;
-    }
-    if (c->cury > wy) {
-       c->qy -= 0.02;
-       c->cury -= 0.02;
-    }
-    if (c->cury < wy) {
-       c->qy += 0.02;
-       c->cury += 0.02;
-    }
-    glTranslatef(0, 0, c->curz);
-    return 0;
-  }
-  glTranslatef(0, 0, c->curz);
-  return 1;
-
-}
-
-#if 0
-static void drawgrid(void)
-{
-  int i;
-
-  glColor3f(0, 0.7, 0);
-  glBegin(GL_LINES);
-  for (i = 0 ; i <= 50; i+=2) {
-      glVertex3f( -25, -15, i-70);
-      glVertex3f( 25, -15, i-70);
-      glVertex3f( i-25, -15, -70);
-      glVertex3f( i-25, -15, -20);
-  }
-  glEnd();
-}
-#endif
-
-
-static void display(Screenflip *c, int wire)
-{
-  int frozen;
-  GLfloat rot = current_device_rotation();
-
-  glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
-  glLoadIdentity();
-  gluLookAt(viewer[0], viewer[1], viewer[2], 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
-  glPushMatrix();
-
-/*
-  glRotatef(rot, 0, 0, 1);
-  if ((rot >  45 && rot <  135) ||
-      (rot < -45 && rot > -135))
-    {
-      GLfloat s = c->winw / (GLfloat) c->winh;
-      glScalef (s, 1/s, 1);
-    }
-*/
-
-  if (inposition(c)) {
-    frozen = 0;
-    glTranslatef(5 * sin(c->theta), 5 * sin(c->rho), 10 * cos(c->gamma) - 10);
-/* randomly change the speed */
-    if (!c->button_down_p && !(random() % 300)) {
-      if (random() % 2)
-        c->drho = 1/60 - (float)(random() % 100)/3000;
-      if (random() % 2)
-        c->dtheta = 1/60 - (float)(random() % 100)/3000;
-      if (random() % 2)
-        c->dgamma = 1/60 - (float)(random() % 100)/3000;
-    }
-    glRotatef(rot, 0, 0, 1);
-    gltrackball_rotate (c->trackball);
-    glRotatef(-rot, 0, 0, 1);
-    if (rotate) glRotatef(c->rot, c->rx, c->ry, c->rz);
-/* update variables with each frame */
-    if(!c->button_down_p && !c->fadetime) {
-      c->theta += c->dtheta;
-      c->rho += c->drho;
-      c->gamma += c->dgamma;
-      c->rot += c->drot;
-      c->drot += c->ddrot;
-    }
-/* dont let our rotation speed get too high */
-    if (c->drot > 5 && c->ddrot > 0)
-        c->ddrot = 0 - (GLfloat)(random() % 100) / 1000;
-    else if (c->drot < -5 && c->ddrot < 0)
-        c->ddrot = (GLfloat)(random() % 100) / 1000;
-  } else { /* reset some paramaters */
-    c->ddrot = 0.05 - (GLfloat)(random() % 100) / 1000;
-    c->theta = c->rho = c->gamma = 0;
-    c->rot = 0;
-    frozen = 1;
-  }
-  if (!c->button_down_p && !c->fadetime && (c->rot >= 360 || c->rot <= -360) && !(random() % 7)) { /* rotate  change */
-    c->rx = (GLfloat)(random() % 100) / 100;
-    c->ry = (GLfloat)(random() % 100) / 100;
-    c->rz = (GLfloat)(random() % 100) / 100;
-  }
-  if (c->odrot * c->drot < 0 && c->tw < c->winw && !(random() % 10)) {
-    c->fadetime = 1;                /* randomly fade and get new snapshot */
-  }
-  c->orot = c->rot;
-  c->odrot = c->drot;
-  if (c->rot > 360 || c->rot < -360) /* dont overflow rotation! */
-    c->rot -= c->rot;
-  showscreen(c, frozen, wire);
-  glPopMatrix();
-  glFlush();
-}
-
-ENTRYPOINT void reshape_screenflip(ModeInfo *mi, int width, int height)
-{
- Screenflip *c = &screenflip[MI_SCREEN(mi)];
- glViewport(0,0,(GLint)width, (GLint) height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluPerspective(45, 1, 2.0, 85);
- glMatrixMode(GL_MODELVIEW);
- c->winw = width;
- c->winh = height;
-}
-
-static void
-image_loaded_cb (const char *filename, XRectangle *geometry,
-                 int image_width, int image_height, 
-                 int texture_width, int texture_height,
-                 void *closure)
-{
-  Screenflip *c = (Screenflip *) closure;
-
-  c->tw = texture_width;
-  c->th = texture_height;
-  c->min_tx = (GLfloat) geometry->x / c->tw;
-  c->min_ty = (GLfloat) geometry->y / c->th;
-  c->max_tx = (GLfloat) (geometry->x + geometry->width)  / c->tw;
-  c->max_ty = (GLfloat) (geometry->y + geometry->height) / c->th;
-
-  c->qx = -QW/2 + ((GLfloat) geometry->x * QW / image_width);
-  c->qy =  QH/2 - ((GLfloat) geometry->y * QH / image_height);
-  c->qw =  QW   * ((GLfloat) geometry->width  / image_width);
-  c->qh =  QH   * ((GLfloat) geometry->height / image_height);
-
-  glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-  glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-                   (c->mipmap_p ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR));
-
-  if (c->anisotropic >= 1.0)
-    glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 
-                     c->anisotropic);
-
-  c->waiting_for_image_p = False;
-  c->first_image_p = False;
-}
-
-
-static void getSnapshot (ModeInfo *modeinfo)
-{
-  Screenflip *c = &screenflip[MI_SCREEN(modeinfo)];
-
-  if (MI_IS_WIREFRAME(modeinfo))
-    return;
-
-  c->waiting_for_image_p = True;
-  c->mipmap_p = True;
-  load_texture_async (modeinfo->xgwa.screen, modeinfo->window,
-                      *c->glx_context, 0, 0, c->mipmap_p, c->texid,
-                      image_loaded_cb, c);
-}
-
-ENTRYPOINT void init_screenflip(ModeInfo *mi)
-{
-  int screen = MI_SCREEN(mi);
-  Screenflip *c;
-
- MI_INIT(mi, screenflip);
- c = &screenflip[screen];
- c->window = MI_WINDOW(mi);
-
- c->trackball = gltrackball_init (False);
-
- if ((c->glx_context = init_GL(mi)) != NULL) {
-      reshape_screenflip(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
- } else {
-     MI_CLEARWINDOW(mi);
- }
- c->winh = MI_WIN_HEIGHT(mi);
- c->winw = MI_WIN_WIDTH(mi);
- c->qw = QW;
- c->qh = QH;
- c->qx = -6;
- c->qy = 6;
-
- c->rx = c->ry = 1;
- c->odrot = 1;
-
- c->show_colors[0] = c->show_colors[1] = 
-   c->show_colors[2] = c->show_colors[3] = 1;
-
- if (! MI_IS_WIREFRAME(mi))
-   {
-     glShadeModel(GL_SMOOTH);
-     glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
-     glEnable(GL_DEPTH_TEST);
-     glEnable(GL_CULL_FACE);
-     glCullFace(GL_BACK);
-     glDisable(GL_LIGHTING);
-   }
-
- if (strstr ((char *) glGetString(GL_EXTENSIONS),
-             "GL_EXT_texture_filter_anisotropic"))
-   glGetFloatv (GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &c->anisotropic);
- else
-   c->anisotropic = 0.0;
-
- glGenTextures(1, &c->texid);
-
- c->first_image_p = True;
- getSnapshot(mi);
-}
-
-ENTRYPOINT void draw_screenflip(ModeInfo *mi)
-{
-  Screenflip *c = &screenflip[MI_SCREEN(mi)];
-  Window w = MI_WINDOW(mi);
-  Display *disp = MI_DISPLAY(mi);
-
-  if (!c->glx_context)
-      return;
-
-  /* Wait for the first image; for subsequent images, load them in the
-     background while animating. */
-  if (c->waiting_for_image_p && c->first_image_p)
-    return;
-
-  glXMakeCurrent(disp, w, *c->glx_context);
-
-  glBindTexture(GL_TEXTURE_2D, c->texid);
-
-  if (c->regrab)
-    getSnapshot(mi);
-
-  display(c, MI_IS_WIREFRAME(mi));
-
-  if(mi->fps_p) do_fps(mi);
-  glFinish(); 
-  glXSwapBuffers(disp, w);
-}
-
-
-ENTRYPOINT void free_screenflip(ModeInfo *mi)
-{
-  Screenflip *c = &screenflip[MI_SCREEN(mi)];
-  if (!c->glx_context) return;
-  glXMakeCurrent (MI_DISPLAY(mi), MI_WINDOW(mi), *c->glx_context);
-  gltrackball_free (c->trackball);
-  if (c->texid) glDeleteTextures (1, &c->texid);
-}
-
-XSCREENSAVER_MODULE_2 ("FlipScreen3D", flipscreen3d, screenflip)
-
-#endif