--- /dev/null
+/*
+ * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ * (C) Copyright IBM Corporation 2003
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <GL/gl.h>
+#include <GL/glx.h>
+
+/** \file opencloseopen.c
+ * Simple test for Mesa bug #508473. Create a window and rendering context.
+ * Draw a single frame. Close the window, destroy the context, and close
+ * the display. Re-open the display, create a new window and context. This
+ * should work, but, at least as of Mesa 5.1, it segfaults. See the bug
+ * report for more details.
+ *
+ * Most of the code here was lifed from various other Mesa xdemos.
+ */
+
+static void
+draw(void)
+{
+ glViewport(0, 0, 300, 300);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
+ glMatrixMode(GL_MODELVIEW);
+
+ glShadeModel(GL_FLAT);
+ glClearColor(0.5, 0.5, 0.5, 1.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ /* draw blue quad */
+ glLoadIdentity();
+ glColor3f(0.3, 0.3, 1.0);
+ glPushMatrix();
+ glRotatef(0, 0, 0, 1);
+ glBegin(GL_POLYGON);
+ glVertex2f(-0.5, -0.25);
+ glVertex2f( 0.5, -0.25);
+ glVertex2f( 0.5, 0.25);
+ glVertex2f(-0.5, 0.25);
+ glEnd();
+ glPopMatrix();}
+
+
+/*
+ * Create an RGB, double-buffered window.
+ * Return the window and context handles.
+ */
+static void
+make_window( const char * dpyName, const char *name,
+ int x, int y, int width, int height,
+ Display **dpyRet, Window *winRet, GLXContext *ctxRet)
+{
+ int attrib[] = { GLX_RGBA,
+ GLX_RED_SIZE, 1,
+ GLX_GREEN_SIZE, 1,
+ GLX_BLUE_SIZE, 1,
+ GLX_DOUBLEBUFFER,
+ None };
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ GLXContext ctx;
+ XVisualInfo *visinfo;
+ Display *dpy;
+
+ dpy = XOpenDisplay(dpyName);
+ if (!dpy) {
+ printf("Error: couldn't open display %s\n", dpyName);
+ exit(1);
+ }
+
+ *dpyRet = dpy;
+ scrnum = DefaultScreen( dpy );
+ root = RootWindow( dpy, scrnum );
+
+ visinfo = glXChooseVisual( dpy, scrnum, attrib );
+ if (!visinfo) {
+ printf("Error: couldn't get an RGB, Double-buffered visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+ win = XCreateWindow( dpy, root, 0, 0, width, height,
+ 0, visinfo->depth, InputOutput,
+ visinfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(dpy, win, &sizehints);
+ XSetStandardProperties(dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+ ctx = glXCreateContext( dpy, visinfo, NULL, True );
+ if (!ctx) {
+ printf("Error: glXCreateContext failed\n");
+ exit(1);
+ }
+
+ XFree(visinfo);
+
+ *winRet = win;
+ *ctxRet = ctx;
+}
+
+
+static void
+destroy_window( Display *dpy, Window win, GLXContext ctx )
+{
+ glXMakeCurrent(dpy, None, NULL);
+ glXDestroyContext(dpy, ctx);
+ XDestroyWindow(dpy, win);
+ XCloseDisplay(dpy);
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ Display *dpy;
+ Window win;
+ GLXContext ctx;
+ char *dpyName = ":0";
+ int i;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0) {
+ dpyName = argv[i+1];
+ i++;
+ }
+ }
+
+ printf("If this program segfaults, then Mesa bug #508473 is probably "
+ "back.\n");
+ make_window(dpyName, "Open-close-open", 0, 0, 300, 300, &dpy, &win, &ctx);
+ XMapWindow(dpy, win);
+ glXMakeCurrent(dpy, win, ctx);
+
+ draw();
+ glXSwapBuffers(dpy, win);
+ sleep(2);
+
+ destroy_window(dpy, win, ctx);
+
+ make_window(dpyName, "Open-close-open", 0, 0, 300, 300, &dpy, &win, &ctx);
+ XMapWindow(dpy, win);
+ glXMakeCurrent(dpy, win, ctx);
+ destroy_window(dpy, win, ctx);
+
+ return 0;
+}
projects / mesa.git / commitdiff