6.09HEADmaster

1 files changed, 0 insertions, 551 deletions

diff --git a/hacks/glx/extrusion.c b/hacks/glx/extrusion.c
deleted file mode 100644
index b76edfb..0000000
--- a/hacks/glx/extrusion.c
+++ /dev/null
@@ -1,551 +0,0 @@
-/* -*- Mode: C; tab-width: 4 -*- */
-/* extrusion --- extrusion module for xscreensaver */
-/*-
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted,
- * provided that the above copyright notice appear in all copies and that
- * both that copyright notice and this permission notice appear in
- * supporting documentation.
- *
- * This file is provided AS IS with no warranties of any kind.  The author
- * shall have no liability with respect to the infringement of copyrights,
- * trade secrets or any patents by this file or any part thereof.  In no
- * event will the author be liable for any lost revenue or profits or
- * other special, indirect and consequential damages.
-
- * Revision History:
- * Tue Oct 19 22:24:47 PDT 1999    Initial creation by David Konerding
- *                                 <dek@cgl.ucsf.edu>
- *                                                                 
- * Notes:
- * This screensaver requires the GLE ("OpenGL Tubing and Extrusion Library")
- * which can be obtained from http://www.linas.org/gle/index.html
-  */
-
-#ifdef STANDALONE
-#define	DEFAULTS	"*delay:	 20000	\n" \
-					"*showFPS:	 False	\n" \
-					"*wireframe: False   \n"
-
-# define release_extrusion 0
-# include "xlockmore.h"				/* from the xscreensaver distribution */
-#else /* !STANDALONE */
-# include "xlock.h"					/* from the xlockmore distribution */
-#endif /* !STANDALONE */
-
-#ifdef USE_GL /* whole file */
-
-#include "ximage-loader.h"
-#include "rotator.h"
-#include "gltrackball.h"
-#include "extrusion.h"
-
-#define checkImageWidth 64
-#define checkImageHeight 64
-
-
-#define WIDTH 640
-#define HEIGHT 480
-
-#define DEF_LIGHT	  	"True"
-#define DEF_TEXTURE		"False"
-#define DEF_TEX_QUAL   "False"
-#define DEF_MIPMAP   	"False"
-#define DEF_NAME        "RANDOM"
-#define DEF_IMAGE   	"BUILTIN"
-
-static int do_light;
-static int do_texture;
-static int do_tex_qual;
-static int do_mipmap;
-static char *which_name;
-static char *which_image;
-
-static XrmOptionDescRec opts[] = {
-  {"-light",           ".extrusion.light",   XrmoptionNoArg, "true" },
-  {"+light",           ".extrusion.light",   XrmoptionNoArg, "false" },
-  {"-texture",         ".extrusion.texture", XrmoptionNoArg, "true" },
-  {"+texture",         ".extrusion.texture", XrmoptionNoArg, "false" },
-  {"-texture",         ".extrusion.texture", XrmoptionNoArg, "true" },
-  {"+texture_quality", ".extrusion.texture", XrmoptionNoArg, "false" },
-  {"-texture_quality", ".extrusion.texture", XrmoptionNoArg, "true" },
-  {"+mipmap",          ".extrusion.mipmap",  XrmoptionNoArg, "false" },
-  {"-mipmap",          ".extrusion.mipmap",  XrmoptionNoArg, "true" },
-  {"-name",            ".extrusion.name",    XrmoptionSepArg, 0 },
-  {"-image",           ".extrusion.image",   XrmoptionSepArg, 0 },
-};
-
-
-static argtype vars[] = {
-  {&do_light,	 "light",           "Light",           DEF_LIGHT,    t_Bool},
-  {&do_texture,	 "texture",         "Texture",         DEF_TEXTURE,  t_Bool},
-  {&do_tex_qual, "texture_quality", "Texture_Quality", DEF_TEX_QUAL, t_Bool},
-  {&do_mipmap,   "mipmap",          "Mipmap",          DEF_MIPMAP,   t_Bool},
-  {&which_name,  "name",            "Name",            DEF_NAME,     t_String},
-  {&which_image, "image",           "Image",           DEF_IMAGE,    t_String},
-};
-
-
-static OptionStruct desc[] =
-{
-  {"-name num", "example 'name' to draw (helix2, helix3, helix4, joinoffset, screw, taper, twistoid)"},
-  {"-/+ light", "whether to do enable lighting (slower)"},
-  {"-/+ texture", "whether to apply a texture (slower)"},
-  {"-image <filename>", "texture image to load"},
-  {"-/+ texture_quality", "whether to use texture smoothing (slower)"},
-  {"-/+ mipmap", "whether to use texture mipmap (slower)"},
-};
-
-ENTRYPOINT ModeSpecOpt extrusion_opts = {countof(opts), opts, countof(vars), vars, desc};
-
-#ifdef USE_MODULES
-ModStruct   extrusion_description =
-{"extrusion", "init_extrusion", "draw_extrusion", NULL,
- "draw_extrusion", "init_extrusion", NULL, &extrusion_opts,
- 1000, 1, 2, 1, 4, 1.0, "",
- "OpenGL extrusion", 0, NULL};
-#endif
-
-
-/* structure for holding the extrusion data */
-typedef struct {
-  int screen_width, screen_height;
-  GLXContext *glx_context;
-  rotator *rot;
-  trackball_state *trackball;
-  Bool button_down_p;
-  Bool button2_down_p;
-  int mouse_start_x, mouse_start_y;
-  int mouse_x, mouse_y;
-  int mouse_dx, mouse_dy;
-  Window window;
-  XColor fg, bg;
-  int extrusion_number;
-} extrusionstruct;
-
-static extrusionstruct *Extrusion = NULL;
-
-
-
-/* set up a light */
-static const GLfloat lightOnePosition[] = {40.0, 40, 100.0, 0.0};
-static const GLfloat lightOneColor[] = {0.99, 0.99, 0.00, 1.0}; 
-
-static const GLfloat lightTwoPosition[] = {-40.0, 40, 100.0, 0.0};
-static const GLfloat lightTwoColor[] = {0.00, 0.99, 0.99, 1.0}; 
-
-float rot_x=0, rot_y=0, rot_z=0;
-float lastx=0, lasty=0;
-
-static float max_lastx=400,  max_lasty=400;
-static float min_lastx=-400, min_lasty=-400;
-
-struct functions {
-  void (*InitStuff)(void);
-  void (*DrawStuff)(void);
-  char *name;
-};
-
-/* currently joinoffset and twistoid look funny-
-   like we're looking at them from the back or something
-*/
-
-static const struct functions funcs_ptr[] = {
-  {InitStuff_helix2, DrawStuff_helix2, "helix2"},
-  {InitStuff_helix3, DrawStuff_helix3, "helix3"},
-  {InitStuff_helix4, DrawStuff_helix4, "helix4"},
-  {InitStuff_joinoffset, DrawStuff_joinoffset, "joinoffset"},
-  {InitStuff_screw, DrawStuff_screw, "screw"},
-  {InitStuff_taper, DrawStuff_taper, "taper"},
-  {InitStuff_twistoid, DrawStuff_twistoid, "twistoid"},
-};
-
-static int num_extrusions = countof(funcs_ptr);
-
-
-/* BEGINNING OF FUNCTIONS */
-
-
-static GLubyte *
-Generate_Image(int *width, int *height, int *format)
-{
-  GLubyte *result;
-  int i, j, c;
-  int counter=0;
-
-  *width = checkImageWidth;
-  *height = checkImageHeight;
-  result = (GLubyte *)malloc(4 * (*width) * (*height));
-
-  counter = 0;
-  for (i = 0; i < checkImageWidth; i++) {
-    for (j = 0; j < checkImageHeight; j++) {
-      c = (((((i&0x8)==0))^(((j&0x8))==0)))*255;
-      result[counter++] = (GLubyte) c;
-      result[counter++] = (GLubyte) c;
-      result[counter++] = (GLubyte) c;
-      result[counter++] = (GLubyte) 255;
-    }
-  }
-
-  *format = GL_RGBA;
-  return result;
-}
-
-
-/* Create a texture in OpenGL.  First an image is loaded 
-   and stored in a raster buffer, then it's  */
-static void Create_Texture(ModeInfo *mi, const char *filename)
-{
-  int height, width;
-  GLubyte *image;
-  int format;
-
-  if ( !strncmp(filename, "BUILTIN", 7))
-    {
-    BUILTIN:
-      image = Generate_Image(&width, &height, &format);
-    }
-  else
-    {
-      XImage *ximage = file_to_ximage (MI_DISPLAY (mi), MI_VISUAL (mi),
-                                       filename);
-      if (!ximage)
-        goto BUILTIN;
-      image  = (GLubyte *) ximage->data;
-      width  = ximage->width;
-      height = ximage->height;
-      format = GL_RGBA;
-    }
-
-  /* GL_MODULATE or GL_DECAL depending on what you want */
-  glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-  /* perhaps we can edge a bit more speed at the expense of quality */
-  glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
-
-  if (do_tex_qual) {
-	/* with texture_quality, the min and mag filters look *much* nice but are *much* slower */
-	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
-  }
-  else {
-	/* default is to do it quick and dirty */
-	/* if you have mipmaps turned on, but not texture quality, nothing will happen! */
-	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-  }
-
-  /* mipmaps make the image look much nicer */
-  if (do_mipmap)
-    {
-      int status;
-      clear_gl_error();
-      status = gluBuild2DMipmaps(GL_TEXTURE_2D, 3, width, height, format,
-                                 GL_UNSIGNED_BYTE, image);
-      if (status)
-        {
-          const char *s = (char *) gluErrorString (status);
-          fprintf (stderr, "%s: error mipmapping %dx%d texture: %s\n",
-                   progname, width, height,
-                   (s ? s : "(unknown)"));
-          exit (1);
-        }
-      check_gl_error("mipmapping");
-    }
-  else
-    {
-      clear_gl_error();
-      glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0,
-                   format, GL_UNSIGNED_BYTE, image);
-      check_gl_error("texture");
-    }
-}
-
-
-static void
-init_rotation (ModeInfo *mi)
-{
-  extrusionstruct *gp = &Extrusion[MI_SCREEN(mi)];
-  double spin_speed = 0.5;
-  gp->rot = make_rotator (spin_speed, spin_speed, spin_speed,
-                          0.2,
-                          0.005,
-                          True);
-  gp->trackball = gltrackball_init (True);
-
-  lastx = (random() % (int) (max_lastx - min_lastx)) + min_lastx;
-  lasty = (random() % (int) (max_lasty - min_lasty)) + min_lasty;
-}
-
-
-/* draw the extrusion once */
-ENTRYPOINT void
-draw_extrusion(ModeInfo * mi)
-{
-  extrusionstruct *gp = &Extrusion[MI_SCREEN(mi)];
-  Display    *display = MI_DISPLAY(mi);
-  Window      window = MI_WINDOW(mi);
-
-  static const GLfloat color[4] = {0.6, 0.6, 0.4, 1.0};
-  /* static const GLfloat spec[4]  = {0.6, 0.6, 0.6, 1.0}; */
-  /* static const GLfloat shiny    = 40.0; */
-
-  double x, y, z;
-
-  if (!gp->glx_context)
-	return;
-
-  glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *gp->glx_context);
-
-  glPushMatrix();
-
-  gltrackball_rotate (gp->trackball);
-
-  get_rotation (gp->rot, &x, &y, &z,
-                !(gp->button_down_p || gp->button2_down_p));
-  glRotatef (x * 360, 1.0, 0.0, 0.0);
-  glRotatef (y * 360, 0.0, 1.0, 0.0);
-  glRotatef (z * 360, 0.0, 0.0, 1.0);
-
-  /* track the mouse only if a button is down. */
-  if (gp->button2_down_p)
-    {
-      gp->mouse_dx += gp->mouse_x - gp->mouse_start_x;
-      gp->mouse_dy += gp->mouse_y - gp->mouse_start_y;
-      gp->mouse_start_x = gp->mouse_x;
-      gp->mouse_start_y = gp->mouse_y;
-    }
-
-  {
-    float scale = (max_lastx - min_lastx);
-    get_position (gp->rot, &x, &y, &z,
-                  !(gp->button_down_p || gp->button2_down_p));
-    lastx = x * scale + min_lastx + gp->mouse_dx;
-    lasty = y * scale + min_lasty + gp->mouse_dy;
-  }
-
-  glScalef(0.5, 0.5, 0.5);
-
-  /* glMaterialfv (GL_FRONT_AND_BACK, GL_SPECULAR,            spec); */
-  /* glMateriali  (GL_FRONT_AND_BACK, GL_SHININESS,           shiny); */
-
-  glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, color);
-  glFrontFace(GL_CCW);
-
-  funcs_ptr[gp->extrusion_number].DrawStuff();
-	  
-  glPopMatrix();
-
-  if (mi->fps_p) do_fps (mi);
-  glXSwapBuffers(display, window);
-}
-
-
-/* set up lighting conditions */
-static void
-SetupLight(void)
-{
-  glLightfv (GL_LIGHT0, GL_POSITION, lightOnePosition);
-  glLightfv (GL_LIGHT0, GL_DIFFUSE, lightOneColor);
-  glLightfv (GL_LIGHT1, GL_POSITION, lightTwoPosition);
-  glLightfv (GL_LIGHT1, GL_DIFFUSE, lightTwoColor);
-
-  glEnable (GL_LIGHT0);
-  glEnable (GL_LIGHT1);
-  glEnable (GL_LIGHTING);
-
-  glColorMaterial (GL_FRONT, GL_DIFFUSE);
-  glColorMaterial (GL_BACK, GL_DIFFUSE);
-  glEnable (GL_COLOR_MATERIAL);
-}
-
-/* Standard reshape function */
-ENTRYPOINT void
-reshape_extrusion (ModeInfo *mi, int width, int height)
-{
-  GLfloat h = (GLfloat) height / (GLfloat) width;
-  int y = 0;
-
-  if (width > height * 5) {   /* tiny window: show middle */
-    height = width * 9/16;
-    y = -height/2;
-    h = height / (GLfloat) width;
-  }
-
-  glViewport (0, y, (GLint) width, (GLint) height);
-
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  gluPerspective (30.0, 1/h, 1.0, 100.0);
-
-  glMatrixMode(GL_MODELVIEW);
-  glLoadIdentity();
-  gluLookAt( 0.0, 0.0, 30.0,
-             0.0, 0.0, 0.0,
-             0.0, 1.0, 0.0);
-
-  glClear(GL_COLOR_BUFFER_BIT);
-}
-
-
-/* decide which extrusion example to run */
-static void
-chooseExtrusionExample (ModeInfo *mi)
-{
-  extrusionstruct *gp = &Extrusion[MI_SCREEN(mi)];
-  int i;
-  /* call the extrusion init routine */
-
-  if (!strncmp(which_name, "RANDOM", strlen(which_name))) {
-    gp->extrusion_number = random() % num_extrusions;
-  }
-  else {
-	gp->extrusion_number=-1;
-	for (i=0; i < num_extrusions; i++) {
-	  if (!strncmp(which_name, funcs_ptr[i].name, strlen(which_name))) {
-		gp->extrusion_number = i;
-	  }
-	}	  
-  }
-	
-  if (gp->extrusion_number < 0 || gp->extrusion_number >= num_extrusions) {
-	fprintf(stderr, "%s: invalid extrusion example number!\n", progname);
-	fprintf(stderr, "%s: known extrusions:\n", progname);
-	for (i=0; i < num_extrusions; i++)
-	  fprintf(stderr,"\t%s\n", funcs_ptr[i].name);
-	exit(1);
-  }
-  init_rotation(mi);
-  funcs_ptr[gp->extrusion_number].InitStuff();
-}
-
-
-/* main OpenGL initialization routine */
-static void
-initializeGL(ModeInfo *mi, GLsizei width, GLsizei height) 
-{
-  int style;
-  int mode;
-
-  reshape_extrusion(mi, width, height);
-  glViewport( 0, 0, width, height ); 
-
-  glEnable(GL_DEPTH_TEST);
-  glDisable (GL_CULL_FACE);
-  glLightModeli (GL_LIGHT_MODEL_TWO_SIDE, True);
-  glShadeModel(GL_SMOOTH);
-
-# ifdef HAVE_JWZGLES /* #### glPolygonMode other than GL_FILL unimplemented */
-  MI_IS_WIREFRAME(mi) = 0;
-# endif
-
-  if (do_light)
-	SetupLight();
-  if (MI_IS_WIREFRAME(mi)) {
-	glPolygonMode(GL_FRONT,GL_LINE);
-  	glPolygonMode(GL_BACK,GL_LINE);
-  }
-  if (do_texture) {
-	Create_Texture(mi, which_image);
-	glEnable(GL_TEXTURE_2D);
-
-	/* configure the pipeline */
-	style = TUBE_JN_CAP;
-	style |= TUBE_CONTOUR_CLOSED;
-	style |= TUBE_NORM_FACET;
-	style |= TUBE_JN_ANGLE;
-	gleSetJoinStyle (style);
-
-	if (do_texture) {
-	  mode = GLE_TEXTURE_ENABLE | GLE_TEXTURE_VERTEX_MODEL_FLAT;
-	  glMatrixMode (GL_TEXTURE); glLoadIdentity ();
-	  glScalef (0.25, 0.1, 1); glMatrixMode (GL_MODELVIEW);
-	  gleTextureMode (mode);
-	}
-  }
-
-}
-
-ENTRYPOINT Bool
-extrusion_handle_event (ModeInfo *mi, XEvent *event)
-{
-  extrusionstruct *gp = &Extrusion[MI_SCREEN(mi)];
-
-  if (event->xany.type == ButtonPress &&
-      (event->xbutton.button == Button4 ||
-       event->xbutton.button == Button5 ||
-       event->xbutton.button == Button6 ||
-       event->xbutton.button == Button7))
-    {
-    }
-  else if (event->xany.type == ButtonPress &&   /* rotate with left button */
-           !event->xbutton.state)		/* if no modifier keys */
-    {
-    }
-  else if (event->xany.type == ButtonPress)  /* deform with other buttons */
-    {                                        /* or with modifier keys */
-      gp->button2_down_p = True;
-    }
-  else if (event->xany.type == ButtonRelease)
-    {
-      gp->button_down_p = False;
-      gp->button2_down_p = False;
-    }
-  else if (event->xany.type == MotionNotify)
-    {
-      if (gp->button2_down_p)
-        {
-          gp->mouse_x = event->xmotion.x;
-          gp->mouse_y = event->xmotion.y;
-        }
-    }
-
-  if (gltrackball_event_handler (event, gp->trackball,
-                                 MI_WIDTH (mi), MI_HEIGHT (mi),
-                                 &gp->button_down_p))
-    return True;
-
-  return False;
-}
-
-
-/* xextrusion initialization routine */
-ENTRYPOINT void
-init_extrusion (ModeInfo * mi)
-{
-  int screen = MI_SCREEN(mi);
-  extrusionstruct *gp;
-
-  if (MI_IS_WIREFRAME(mi)) do_light = 0;
-
-  MI_INIT(mi, Extrusion);
-  gp = &Extrusion[screen];
-
-  gp->window = MI_WINDOW(mi);
-  if ((gp->glx_context = init_GL(mi)) != NULL) {
-	reshape_extrusion(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
-	initializeGL(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
-	chooseExtrusionExample(mi);
-  } else {
-	MI_CLEARWINDOW(mi);
-  }
-
-}
-
-
-ENTRYPOINT void
-free_extrusion (ModeInfo * mi)
-{
-  extrusionstruct *gp = &Extrusion[MI_SCREEN(mi)];
-  if (!gp->glx_context) return;
-  glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *gp->glx_context);
-  if (gp->trackball) gltrackball_free (gp->trackball);
-  if (gp->rot) free_rotator (gp->rot);
-}
-
-XSCREENSAVER_MODULE ("Extrusion", extrusion)
-
-#endif  /* USE_GL */