1 files changed, 154 insertions, 0 deletions
diff --git a/src/test-native/contextRetargetDrawable01.c b/src/test-native/contextRetargetDrawable01.c
new file mode 100644
index 000000000..bad6c661f
--- /dev/null
+++ b/src/test-native/contextRetargetDrawable01.c
@@ -0,0 +1,154 @@
+/**
+ * compile with: gcc -o contextRetargetDrawable01 contextRetargetDrawable01.c -lX11 -lGL
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <X11/X.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <GL/glx.h>
+#include <GL/gl.h>
+
+static PFNGLXSWAPINTERVALSGIPROC _glXSwapIntervalSGI = NULL;
+
+static void testRetarget();
+
+static const char * msg = "contextRetargetDrawable01";
+
+static const useconds_t demodelay = 2 * 1000 * 1000;
+
+int main(int nargs, char **vargs) {
+    _glXSwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC) glXGetProcAddressARB("glXSwapIntervalSGI");
+    if(NULL == _glXSwapIntervalSGI) {
+        fprintf(stderr, "No glXSwapIntervalSGI avail, bail out\n");
+        return 1;
+    }
+    testRetarget();
+    return 0;
+}
+
+static void createGLWin(Display *dpy, int width, int height, Window *rWin, GLXContext *rCtx);
+static void useGL(Display *dpy, Window win, GLXContext ctx, int width, int height, float c, int swapInterval);
+
+static void testRetarget() {
+    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);
+    createGLWin(disp1, 200, 200, &win1, &ctx1);
+
+    fprintf(stderr, "%s: Create #2\n", msg);
+    disp2 = disp1;
+    // disp2 = XOpenDisplay(NULL);
+    createGLWin(disp2, 300, 300, &win2, &ctx2);
+
+    fprintf(stderr, "%s: Use #1.1\n", msg);
+    useGL(disp1, win1, ctx1, 200, 200, 0.0f, 1); // OK
+
+    fprintf(stderr, "%s: Use #1.2\n", msg);
+    useGL(disp2, win2, ctx2, 300, 300, 1.0f, 1); // OK
+
+    usleep( demodelay );
+
+    fprintf(stderr, "%s: Retarget Drawable\n", msg);
+    {
+        Window _win = win2;
+        win2 = win1;
+        win1 = _win;
+    }
+
+    fprintf(stderr, "%s: Use #2.1\n", msg);
+    useGL(disp1, win1, ctx1, 200, 200, 0.0f, 0); // no setSwapInterval - OK
+
+    fprintf(stderr, "%s: Use #2.2\n", msg);
+    useGL(disp2, win2, ctx2, 300, 300, 1.0f, 0); // no setSwapInterval - OK
+
+    usleep( demodelay );
+
+    fprintf(stderr, "%s: Use #3.1\n", msg);
+    useGL(disp1, win1, ctx1, 200, 200, 0.1f, 1); // setSwapInterval - crash on Mesa 8.0.4 DRI2
+
+    fprintf(stderr, "%s: Use #3.2\n", msg);
+    useGL(disp2, win2, ctx2, 300, 300, 0.9f, 1); // setSwapInterval - crash on Mesa 8.0.4 DRI2
+
+    fprintf(stderr, "%s: Success - no bug\n", msg);
+
+    usleep( demodelay );
+
+    fprintf(stderr, "%s: Destroy #1.0\n", msg);
+    glXMakeContextCurrent(disp1, 0, 0, 0);
+    glXDestroyContext(disp1, ctx1);
+    if( disp1 != disp2 ) {
+        XCloseDisplay(disp1);
+    }
+    fprintf(stderr, "%s: Destroy #1.X\n", msg);
+
+    fprintf(stderr, "%s: Destroy #2.0\n", msg);
+    glXMakeContextCurrent(disp2, 0, 0, 0);
+    glXDestroyContext(disp2, ctx2);
+    XCloseDisplay(disp2);
+    fprintf(stderr, "%s: Destroy #2.X\n", msg);
+
+    fprintf(stderr, "%s: Exit - OK\n", msg);
+}
+
+static void useGL(Display *dpy, Window win, GLXContext ctx, int width, int height, float c, int swapInterval)
+{
+    glXMakeContextCurrent(dpy, win, win, ctx);
+    glViewport(0, 0, width, height);
+    if(0 < swapInterval) {
+        fprintf(stderr, "%s: glXSwapIntervalSGI(1)\n", msg);
+        _glXSwapIntervalSGI(1); // offending op after retargeting drawable
+    }
+    fprintf(stderr, "GL_VENDOR: %s\n", glGetString(GL_VENDOR));
+    fprintf(stderr, "GL_VERSION: %s\n", glGetString(GL_VERSION));
+    fprintf(stderr, "GL_RENDERER: %s\n", glGetString(GL_RENDERER));
+    glClearColor(c, c, c, 0.0f);
+    glClearDepth(1.0f);
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    glXSwapBuffers(dpy, win);
+    glXMakeContextCurrent(dpy, 0, 0, 0);
+}
+
+/* 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 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);
+}
+