Attachment 77499 Details for Bug 55675 – repeated glXMakeCurrent and glXSwapBuffers calls on different drawables

repeated glXMakeCurrent and glXSwapBuffers calls on different drawables

q.c (text/plain), 1.07 KB, created by Rinat on 2013-04-05 21:18:49 UTC

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Creator: Rinat

Created: 2013-04-05 21:18:49 UTC

Size: 1.07 KB

patch

obsolete

>// build with:
>// $ gcc -std=gnu99 `pkg-config --cflags --libs gl ` q.c
>
>#define _XOPEN_SOURCE   500
>#define GL_GLEXT_PROTOTYPES
>#include <GL/glx.h>
>#include <stdio.h>
>#include <X11/Xlib.h>
>#include <unistd.h>
>
>int main(void)
>{
>    Display *dpy = XOpenDisplay(NULL);
>    Window root = DefaultRootWindow(dpy);
>    Window wnd1 = XCreateSimpleWindow(dpy, root, 0, 0, 10, 10, 0, 0, 0);
>    Window wnd2 = XCreateSimpleWindow(dpy, root, 0, 0, 10, 10, 0, 0, 0);
>
>    GLint att[] = { GLX_RGBA, GLX_DEPTH_SIZE, 24, GLX_DOUBLEBUFFER, None };
>    XVisualInfo *vi;
>    vi = glXChooseVisual(dpy, 0, att);
>    if (NULL == vi) {
>        fprintf(stderr, "failed to choose visual\n");
>        return 1;
>    }
>
>    GLXContext glc = glXCreateContext(dpy, vi, NULL, GL_TRUE);
>
>    printf("playing with context\n");
>    for (int k = 0; k < 1000; k ++) {
>        printf(".");
>        fflush(stdout);
>        for (int j = 0; j < 100; j ++) {
>            glXMakeCurrent(dpy, wnd1, glc);
>            glXMakeCurrent(dpy, wnd2, glc);
>            glXSwapBuffers(dpy, wnd2);
>        }
>    }
>    printf("done\n");
>    return 0;
>}

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Attachments on bug 55675: 68138 | 68139 | 77499

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