From 68fc4b415e322f6744299e39864fbc377c6eff74 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Fri, 21 May 2010 09:32:38 -0700
Subject: Remove demos that have moved to
 git+ssh://git.freedesktop.org/git/mesa/demos.

The remaining programs are ones I've had difficulty finding a build
environment for to make the build system or are unit tests that should
probably live next to their code instead.  Hopefully people can bring
over the build for remaining pieces they care about.
---
 progs/xdemos/pbdemo.c | 493 --------------------------------------------------
 1 file changed, 493 deletions(-)
 delete mode 100644 progs/xdemos/pbdemo.c

(limited to 'progs/xdemos/pbdemo.c')

diff --git a/progs/xdemos/pbdemo.c b/progs/xdemos/pbdemo.c
deleted file mode 100644
index 277df72924..0000000000
--- a/progs/xdemos/pbdemo.c
+++ /dev/null
@@ -1,493 +0,0 @@
-
-/*
- * This program demonstrates how to do "off-screen" rendering using
- * the GLX pixel buffer extension.
- *
- * Written by Brian Paul for the "OpenGL and Window System Integration"
- * course presented at SIGGRAPH '97.  Updated on 5 October 2002.
- *
- * Usage:
- *   pbuffers width height imgfile
- * Where:
- *   width is the width, in pixels, of the image to generate.
- *   height is the height, in pixels, of the image to generate.
- *   imgfile is the name of the PPM image file to write.
- *
- *
- * This demo draws 3-D boxes with random orientation.  A pbuffer with
- * a depth (Z) buffer is prefered but if such a pbuffer can't be created
- * we use a non-depth-buffered config.
- *
- * On machines such as the SGI Indigo you may have to reconfigure your
- * display/X server to enable pbuffers.  Look in the /usr/gfx/ucode/MGRAS/vof/
- * directory for display configurationswith the _pbuf suffix.  Use
- * setmon -x <vof> to configure your X server and display for pbuffers.
- *
- * O2 systems seem to support pbuffers well.
- *
- * IR systems (at least 1RM systems) don't have single-buffered, RGBA,
- * Z-buffered pbuffer configs.  BUT, they DO have DOUBLE-buffered, RGBA,
- * Z-buffered pbuffers.  Note how we try four different fbconfig attribute
- * lists below!
- */
-
-
-#include <assert.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <X11/Xlib.h>
-#include "pbutil.h"
-
-
-/* Some ugly global vars */
-static Display *gDpy = NULL;
-static int gScreen = 0;
-static FBCONFIG gFBconfig = 0;
-static PBUFFER gPBuffer = 0;
-static int gWidth, gHeight;
-static GLXContext glCtx;
-
-
-
-/*
- * Create the pbuffer and return a GLXPbuffer handle.
- *
- * We loop over a list of fbconfigs trying to create
- * a pixel buffer.  We return the first pixel buffer which we successfully
- * create.
- */
-static PBUFFER
-MakePbuffer( Display *dpy, int screen, int width, int height )
-{
-#define NUM_FB_CONFIGS 4
-   const char fbString[NUM_FB_CONFIGS][100] = {
-      "Single Buffered, depth buffer",
-      "Double Buffered, depth buffer",
-      "Single Buffered, no depth buffer",
-      "Double Buffered, no depth buffer"
-   };
-   int fbAttribs[NUM_FB_CONFIGS][100] = {
-      {
-         /* Single buffered, with depth buffer */
-         GLX_RENDER_TYPE, GLX_RGBA_BIT,
-         GLX_DRAWABLE_TYPE, GLX_PBUFFER_BIT,
-         GLX_RED_SIZE, 1,
-         GLX_GREEN_SIZE, 1,
-         GLX_BLUE_SIZE, 1,
-         GLX_DEPTH_SIZE, 1,
-         GLX_DOUBLEBUFFER, 0,
-         GLX_STENCIL_SIZE, 0,
-         None
-      },
-      {
-         /* Double buffered, with depth buffer */
-         GLX_RENDER_TYPE, GLX_RGBA_BIT,
-         GLX_DRAWABLE_TYPE, GLX_PBUFFER_BIT,
-         GLX_RED_SIZE, 1,
-         GLX_GREEN_SIZE, 1,
-         GLX_BLUE_SIZE, 1,
-         GLX_DEPTH_SIZE, 1,
-         GLX_DOUBLEBUFFER, 1,
-         GLX_STENCIL_SIZE, 0,
-         None
-      },
-      {
-         /* Single buffered, without depth buffer */
-         GLX_RENDER_TYPE, GLX_RGBA_BIT,
-         GLX_DRAWABLE_TYPE, GLX_PBUFFER_BIT,
-         GLX_RED_SIZE, 1,
-         GLX_GREEN_SIZE, 1,
-         GLX_BLUE_SIZE, 1,
-         GLX_DEPTH_SIZE, 0,
-         GLX_DOUBLEBUFFER, 0,
-         GLX_STENCIL_SIZE, 0,
-         None
-      },
-      {
-         /* Double buffered, without depth buffer */
-         GLX_RENDER_TYPE, GLX_RGBA_BIT,
-         GLX_DRAWABLE_TYPE, GLX_PBUFFER_BIT,
-         GLX_RED_SIZE, 1,
-         GLX_GREEN_SIZE, 1,
-         GLX_BLUE_SIZE, 1,
-         GLX_DEPTH_SIZE, 0,
-         GLX_DOUBLEBUFFER, 1,
-         GLX_STENCIL_SIZE, 0,
-         None
-      }
-   };
-   Bool largest = True;
-   Bool preserve = False;
-   FBCONFIG *fbConfigs;
-   PBUFFER pBuffer = None;
-   int nConfigs;
-   int i;
-   int attempt;
-
-   for (attempt=0; attempt<NUM_FB_CONFIGS; attempt++) {
-
-      /* Get list of possible frame buffer configurations */
-      fbConfigs = ChooseFBConfig(dpy, screen, fbAttribs[attempt], &nConfigs);
-      if (nConfigs==0 || !fbConfigs) {
-         printf("Note: glXChooseFBConfig(%s) failed\n", fbString[attempt]);
-         XFree(fbConfigs);
-         continue;
-      }
-
-#if 0 /*DEBUG*/
-      for (i=0;i<nConfigs;i++) {
-         printf("Config %d\n", i);
-         PrintFBConfigInfo(dpy, screen, fbConfigs[i], 0);
-      }
-#endif
-
-      /* Create the pbuffer using first fbConfig in the list that works. */
-      for (i=0;i<nConfigs;i++) {
-         pBuffer = CreatePbuffer(dpy, screen, fbConfigs[i], width, height, largest, preserve);
-         if (pBuffer) {
-            gFBconfig = fbConfigs[i];
-            gWidth = width;
-            gHeight = height;
-            break;
-         }
-      }
-
-      if (pBuffer!=None) {
-         break;
-      }
-   }
-
-   if (pBuffer) {
-      printf("Using: %s\n", fbString[attempt]);
-   }
-
-   XFree(fbConfigs);
-
-   return pBuffer;
-#undef NUM_FB_CONFIGS
-}
-
-
-
-/*
- * Do all the X / GLX setup stuff.
- */
-static int
-Setup(int width, int height)
-{
-   int pbSupport;
-   XVisualInfo *visInfo;
-
-   /* Open the X display */
-   gDpy = XOpenDisplay(NULL);
-   if (!gDpy) {
-      printf("Error: couldn't open default X display.\n");
-      return 0;
-   }
-
-   /* Get default screen */
-   gScreen = DefaultScreen(gDpy);
-
-   /* Test that pbuffers are available */
-   pbSupport = QueryPbuffers(gDpy, gScreen);
-   if (pbSupport == 1) {
-      printf("Using GLX 1.3 Pbuffers\n");
-   }
-   else if (pbSupport == 2) {
-      printf("Using SGIX Pbuffers\n");
-   }
-   else {
-      printf("Error: pbuffers not available on this screen\n");
-      XCloseDisplay(gDpy);
-      return 0;
-   }
-
-   /* Create Pbuffer */
-   gPBuffer = MakePbuffer( gDpy, gScreen, width, height );
-   if (gPBuffer==None) {
-      printf("Error: couldn't create pbuffer\n");
-      XCloseDisplay(gDpy);
-      return 0;
-   }
-
-   /* Test drawable queries */
-   {
-      unsigned int v;
-      glXQueryDrawable( gDpy, gPBuffer, GLX_WIDTH, &v);
-      printf("GLX_WIDTH = %u\n", v);
-      glXQueryDrawable( gDpy, gPBuffer, GLX_HEIGHT, &v);
-      printf("GLX_HEIGHT = %u\n", v);
-      glXQueryDrawable( gDpy, gPBuffer, GLX_PRESERVED_CONTENTS, &v);
-      printf("GLX_PRESERVED_CONTENTS = %u\n", v);
-      glXQueryDrawable( gDpy, gPBuffer, GLX_LARGEST_PBUFFER, &v);
-      printf("GLX_LARGEST_PBUFFER = %u\n", v);
-      glXQueryDrawable( gDpy, gPBuffer, GLX_FBCONFIG_ID, &v);
-      printf("GLX_FBCONFIG_ID = %u\n", v);
-   }
-
-   /* Get corresponding XVisualInfo */
-   visInfo = GetVisualFromFBConfig(gDpy, gScreen, gFBconfig);
-   if (!visInfo) {
-      printf("Error: can't get XVisualInfo from FBconfig\n");
-      XCloseDisplay(gDpy);
-      return 0;
-   }
-
-   /* Create GLX context */
-   glCtx = glXCreateContext(gDpy, visInfo, NULL, True);
-   if (!glCtx) {
-      /* try indirect */
-      glCtx = glXCreateContext(gDpy, visInfo, NULL, False);
-      if (!glCtx) {
-         printf("Error: Couldn't create GLXContext\n");
-         XFree(visInfo);
-         XCloseDisplay(gDpy);
-         return 0;
-      }
-      else {
-         printf("Warning: using indirect GLXContext\n");
-      }
-   }
-
-   /* Bind context to pbuffer */
-   if (!glXMakeCurrent(gDpy, gPBuffer, glCtx)) {
-      printf("Error: glXMakeCurrent failed\n");
-      XFree(visInfo);
-      XCloseDisplay(gDpy);
-      return 0;
-   }
-
-   return 1;  /* Success!! */
-}
-
-
-
-/* One-time GL setup */
-static void
-InitGL(void)
-{
-   static GLfloat pos[4] = {0.0, 0.0, 10.0, 0.0};
-   glEnable(GL_LIGHTING);
-   glEnable(GL_LIGHT0);
-   glLightfv(GL_LIGHT0, GL_POSITION, pos);
-   glEnable(GL_NORMALIZE);
-   glEnable(GL_DEPTH_TEST);
-   glEnable(GL_CULL_FACE);
-
-   glViewport(0, 0, gWidth, gHeight);
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -15.0 );
-}
-
-
-/* Return random float in [0,1] */
-static float
-Random(void)
-{
-   int i = rand();
-   return (float) (i % 1000) / 1000.0;
-}
-
-
-static void
-RandomColor(void)
-{
-   GLfloat c[4];
-   c[0] = Random();
-   c[1] = Random();
-   c[2] = Random();
-   c[3] = 1.0;
-   glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, c);
-}
-
-
-/* This function borrowed from Mark Kilgard's GLUT */
-static void
-drawBox(GLfloat x0, GLfloat x1, GLfloat y0, GLfloat y1,
-  GLfloat z0, GLfloat z1, GLenum type)
-{
-  static GLfloat n[6][3] =
-  {
-    {-1.0, 0.0, 0.0},
-    {0.0, 1.0, 0.0},
-    {1.0, 0.0, 0.0},
-    {0.0, -1.0, 0.0},
-    {0.0, 0.0, 1.0},
-    {0.0, 0.0, -1.0}
-  };
-  static GLint faces[6][4] =
-  {
-    {0, 1, 2, 3},
-    {3, 2, 6, 7},
-    {7, 6, 5, 4},
-    {4, 5, 1, 0},
-    {5, 6, 2, 1},
-    {7, 4, 0, 3}
-  };
-  GLfloat v[8][3], tmp;
-  GLint i;
-
-  if (x0 > x1) {
-    tmp = x0;
-    x0 = x1;
-    x1 = tmp;
-  }
-  if (y0 > y1) {
-    tmp = y0;
-    y0 = y1;
-    y1 = tmp;
-  }
-  if (z0 > z1) {
-    tmp = z0;
-    z0 = z1;
-    z1 = tmp;
-  }
-  v[0][0] = v[1][0] = v[2][0] = v[3][0] = x0;
-  v[4][0] = v[5][0] = v[6][0] = v[7][0] = x1;
-  v[0][1] = v[1][1] = v[4][1] = v[5][1] = y0;
-  v[2][1] = v[3][1] = v[6][1] = v[7][1] = y1;
-  v[0][2] = v[3][2] = v[4][2] = v[7][2] = z0;
-  v[1][2] = v[2][2] = v[5][2] = v[6][2] = z1;
-
-  for (i = 0; i < 6; i++) {
-    glBegin(type);
-    glNormal3fv(&n[i][0]);
-    glVertex3fv(&v[faces[i][0]][0]);
-    glVertex3fv(&v[faces[i][1]][0]);
-    glVertex3fv(&v[faces[i][2]][0]);
-    glVertex3fv(&v[faces[i][3]][0]);
-    glEnd();
-  }
-}
-
-
-
-/* Render a scene */
-static void
-Render(void)
-{
-   int NumBoxes = 100;
-   int i;
-
-   glClearColor(0.2, 0.2, 0.9, 0.0);
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-   for (i=0;i<NumBoxes;i++) {
-      float tx = -2.0 + 4.0 * Random();
-      float ty = -2.0 + 4.0 * Random();
-      float tz =  4.0 - 16.0 * Random();
-      float sx = 0.1 + Random() * 0.4;
-      float sy = 0.1 + Random() * 0.4;
-      float sz = 0.1 + Random() * 0.4;
-      float rx = Random();
-      float ry = Random();
-      float rz = Random();
-      float ra = Random() * 360.0;
-      glPushMatrix();
-      glTranslatef(tx, ty, tz);
-      glRotatef(ra, rx, ry, rz);
-      glScalef(sx, sy, sz);
-      RandomColor();
-      drawBox(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0, GL_POLYGON);
-      glPopMatrix();
-   }
-
-   glFinish();
-}
-
-
-
-static void
-WriteFile(const char *filename)
-{
-   FILE *f;
-   GLubyte *image;
-   int i;
-
-   image = malloc(gWidth * gHeight * 3 * sizeof(GLubyte));
-   if (!image) {
-      printf("Error: couldn't allocate image buffer\n");
-      return;
-   }
-
-   glPixelStorei(GL_PACK_ALIGNMENT, 1);
-   glReadPixels(0, 0, gWidth, gHeight, GL_RGB, GL_UNSIGNED_BYTE, image);
-
-   f = fopen(filename, "w");
-   if (!f) {
-      printf("Couldn't open image file: %s\n", filename);
-      return;
-   }
-   fprintf(f,"P6\n");
-   fprintf(f,"# ppm-file created by %s\n", "trdemo2");
-   fprintf(f,"%i %i\n", gWidth, gHeight);
-   fprintf(f,"255\n");
-   fclose(f);
-   f = fopen(filename, "ab");  /* now append binary data */
-   if (!f) {
-      printf("Couldn't append to image file: %s\n", filename);
-      return;
-   }
-
-   for (i=0;i<gHeight;i++) {
-      GLubyte *rowPtr;
-      /* Remember, OpenGL images are bottom to top.  Have to reverse. */
-      rowPtr = image + (gHeight-1-i) * gWidth*3;
-      fwrite(rowPtr, 1, gWidth*3, f);
-   }
-
-   fclose(f);
-   free(image);
-
-   printf("Wrote %d by %d image file: %s\n", gWidth, gHeight, filename);
-}
-
-
-
-/*
- * Print message describing command line parameters.
- */
-static void
-Usage(const char *appName)
-{
-   printf("Usage:\n");
-   printf("  %s width height imgfile\n", appName);
-   printf("Where imgfile is a ppm file\n");
-}
-
-
-
-int
-main(int argc, char *argv[])
-{
-   if (argc!=4) {
-      Usage(argv[0]);
-   }
-   else {
-      int width = atoi(argv[1]);
-      int height = atoi(argv[2]);
-      char *fileName = argv[3];
-      if (width<=0) {
-         printf("Error: width parameter must be at least 1.\n");
-         return 1;
-      }
-      if (height<=0) {
-         printf("Error: height parameter must be at least 1.\n");
-         return 1;
-      }
-      if (!Setup(width, height)) {
-         return 1;
-      }
-      InitGL();
-      Render();
-      WriteFile(fileName);
-      DestroyPbuffer(gDpy, gScreen, gPBuffer);
-   }
-   return 0;
-}
-
-- 
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