From dc8d3bbbba7910b3e2453a0d7d37d2bf8a05f4b6 Mon Sep 17 00:00:00 2001
From: Martin Hegedus <martin.hegedus@gmail.com>
Date: Sun, 14 Apr 2013 23:32:26 +0200
Subject: Bug 705: This is the version of displayMultiple02 which uses
 glXCreateNewContext instead of glXCreateContext. Segmentation fault w/ Mesa
 7.0

---
 src/test-native/displayMultiple02_new_mch.c | 199 ++++++++++++++++++++++++++++
 1 file changed, 199 insertions(+)
 create mode 100644 src/test-native/displayMultiple02_new_mch.c

(limited to 'src/test-native/displayMultiple02_new_mch.c')

diff --git a/src/test-native/displayMultiple02_new_mch.c b/src/test-native/displayMultiple02_new_mch.c
new file mode 100644
index 000000000..f64d41472
--- /dev/null
+++ b/src/test-native/displayMultiple02_new_mch.c
@@ -0,0 +1,199 @@
+/**
+ * compile with: gcc -o displayMultiple02 displayMultiple02.c -lX11 -lGL
+ */
+
+#include <stdio.h>
+#include <X11/X.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <GL/glx.h>
+#include <GL/gl.h>
+
+static void testOrder(int reverseDestroyOrder, const char * msg);
+
+static int useXLockDisplay = 0;
+
+int main(int nargs, char **vargs) {
+    int arg=1;
+    while(arg<nargs) {
+       if(0 == strcmp(vargs[arg], "-xlock")) {
+          useXLockDisplay = 1;
+       }
+       arg++;
+    }
+    fprintf(stderr, "-xlock    (XLockDisplay): %d\n", useXLockDisplay);
+
+    if( useXLockDisplay ) {
+      XInitThreads();
+    }
+    testOrder(0, "Normal order");
+    testOrder(1, "Reverse order");
+    return 0;
+}
+
+static void createGLWin(Display *dpy, int width, int height, Window *rWin, GLXContext *rCtx);
+static void createGLWinNew(Display *dpy, int width, int height, Window *rWin, GLXContext *rCtx);
+static void useGL(Display *dpy, Window win, GLXContext ctx, int width, int height);
+
+static void XLOCKDISPLAY(Display *dpy) {
+    if( useXLockDisplay ) {
+        XLockDisplay(dpy);
+    }
+}
+static void XUNLOCKDISPLAY(Display *dpy) {
+    if( useXLockDisplay ) {
+        XUnlockDisplay(dpy);
+    }
+}
+
+void testOrder(int reverseDestroyOrder, const char * msg) {
+    int major, minor;
+    Display *disp1;
+    Window win1;
+    GLXContext ctx1;
+
+    Display *disp2;
+    Window win2;
+    GLXContext ctx2;
+
+    fprintf(stderr, "%s: Create #1\n", msg);
+    disp1 = XOpenDisplay(NULL);
+    XLOCKDISPLAY(disp1);
+      createGLWinNew(disp1, 200, 200, &win1, &ctx1);
+      useGL(disp1, win1, ctx1, 200, 200);
+    XUNLOCKDISPLAY(disp1);
+
+    fprintf(stderr, "%s: Create #2\n", msg);
+    disp2 = XOpenDisplay(NULL);
+    XLOCKDISPLAY(disp2);
+      createGLWinNew(disp2, 300, 300, &win2, &ctx2);
+      useGL(disp2, win2, ctx2, 300, 300);
+    XUNLOCKDISPLAY(disp2);
+
+    if(reverseDestroyOrder) {
+        fprintf(stderr, "%s: Destroy #2.0\n", msg);
+        XLOCKDISPLAY(disp2);
+          glXMakeCurrent(disp2, 0, 0);
+          glXDestroyContext(disp2, ctx2);
+        XUNLOCKDISPLAY(disp2);
+        XCloseDisplay(disp2);
+        fprintf(stderr, "%s: Destroy #2.X\n", msg);
+
+        fprintf(stderr, "%s: Destroy #1.0\n", msg);
+        XLOCKDISPLAY(disp1);
+        fprintf(stderr, "%s: Destroy #1.1\n", msg);
+          glXMakeCurrent(disp1, 0, 0);
+          fprintf(stderr, "%s: Destroy #1.2\n", msg);
+          glXDestroyContext(disp1, ctx1);
+          fprintf(stderr, "%s: Destroy #1.3\n", msg);
+        XUNLOCKDISPLAY(disp1);
+        fprintf(stderr, "%s: Destroy #1.4\n", msg);
+        XCloseDisplay(disp1);
+        fprintf(stderr, "%s: Destroy #1.X\n", msg);
+    } else {
+        fprintf(stderr, "%s: Destroy #1.0\n", msg);
+        XLOCKDISPLAY(disp1);
+          glXMakeCurrent(disp1, 0, 0);
+          glXDestroyContext(disp1, ctx1);
+        XUNLOCKDISPLAY(disp1);
+        XCloseDisplay(disp1);
+        fprintf(stderr, "%s: Destroy #1.X\n", msg);
+
+        fprintf(stderr, "%s: Destroy #2.0\n", msg);
+        XLOCKDISPLAY(disp2);
+        fprintf(stderr, "%s: Destroy #2.1\n", msg);
+          glXMakeCurrent(disp2, 0, 0);
+          fprintf(stderr, "%s: Destroy #2.2\n", msg);
+          glXDestroyContext(disp2, ctx2);
+          fprintf(stderr, "%s: Destroy #2.3\n", msg);
+        XUNLOCKDISPLAY(disp2);
+        fprintf(stderr, "%s: Destroy #2.4\n", msg);
+        XCloseDisplay(disp2);
+        fprintf(stderr, "%s: Destroy #2.X\n", msg);
+    }
+
+    fprintf(stderr, "%s: Success - no bug\n", msg);
+}
+
+/* attributes for a double buffered visual in RGBA format with at least
+ * 4 bits per color and a 16 bit depth buffer */
+static int attrListDbl[] = { GLX_RGBA, GLX_DOUBLEBUFFER, 
+    GLX_RED_SIZE, 4, 
+    GLX_GREEN_SIZE, 4, 
+    GLX_BLUE_SIZE, 4, 
+    GLX_DEPTH_SIZE, 16,
+    None };
+static int attrListDblNew[] = { GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
+				GLX_RENDER_TYPE, GLX_RGBA_BIT,
+				GLX_DOUBLEBUFFER, True,
+				GLX_BUFFER_SIZE, 24,
+				GLX_DEPTH_SIZE, 24,
+				None };
+
+void createGLWin(Display *dpy, int width, int height, Window *rWin, GLXContext *rCtx)
+{
+    int screen = DefaultScreen(dpy);
+    XVisualInfo *vi = glXChooseVisual(dpy, screen, attrListDbl);
+    Colormap cmap;
+    XSetWindowAttributes attr;
+
+    /* create a GLX context */
+    *rCtx = glXCreateContext(dpy, vi, 0, GL_TRUE);
+    /* create a color map */
+    cmap = XCreateColormap(dpy, RootWindow(dpy, vi->screen), vi->visual, AllocNone);
+    attr.colormap = cmap;
+    attr.border_pixel = 0;
+
+    /* create a window in window mode*/
+    attr.event_mask = ExposureMask | KeyPressMask | ButtonPressMask |
+        StructureNotifyMask;
+    *rWin = XCreateWindow(dpy, RootWindow(dpy, vi->screen),
+        0, 0, width, height, 0, vi->depth, InputOutput, vi->visual,
+        CWBorderPixel | CWColormap | CWEventMask, &attr);
+
+    XMapRaised(dpy, *rWin);
+}
+
+void createGLWinNew(Display *dpy, int width, int height, Window *rWin, GLXContext *rCtx)
+{
+    int screen = DefaultScreen(dpy);
+    Colormap cmap;
+    XSetWindowAttributes attr;
+    
+    // create configs
+    int nelements;
+    GLXFBConfig *fbconfigs = glXChooseFBConfig(dpy,screen,attrListDblNew,&nelements );
+    
+    // get visual
+    XVisualInfo *vi = glXGetVisualFromFBConfig(dpy,*fbconfigs);
+    
+    /* create a GLX context */
+    *rCtx = glXCreateNewContext(dpy, *fbconfigs, GLX_RGBA_TYPE, 0, GL_TRUE);
+    
+    /* create a color map */
+    cmap = XCreateColormap(dpy, RootWindow(dpy, vi->screen), vi->visual, AllocNone);
+    attr.colormap = cmap;
+    attr.border_pixel = 0;
+
+    /* create a window in window mode*/
+    attr.event_mask = ExposureMask | KeyPressMask | ButtonPressMask |
+        StructureNotifyMask;
+    *rWin = XCreateWindow(dpy, RootWindow(dpy, vi->screen),
+        0, 0, width, height, 0, vi->depth, InputOutput, vi->visual,
+        CWBorderPixel | CWColormap | CWEventMask, &attr);
+
+    XMapRaised(dpy, *rWin);
+}
+
+void useGL(Display *dpy, Window win, GLXContext ctx, int width, int height)
+{
+    glXMakeCurrent(dpy, win, ctx);
+    glShadeModel(GL_SMOOTH);
+    glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+    glClearDepth(1.0f);
+    glViewport(0, 0, width, height);
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    glXSwapBuffers(dpy, win);
+    glXMakeCurrent(dpy, 0, 0);
+}
+
-- 
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