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/*
* Copyright (c) 2014 Intel Corporation
*
* 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 (including the next
* paragraph) 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
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xlibint.h>
#include <X11/extensions/Xrender.h>
#include <X11/extensions/XShm.h>
#if HAVE_X11_EXTENSIONS_SHMPROTO_H
#include <X11/extensions/shmproto.h>
#elif HAVE_X11_EXTENSIONS_SHMSTR_H
#include <X11/extensions/shmstr.h>
#else
#error Failed to find the right header for X11 MIT-SHM protocol definitions
#endif
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <assert.h>
#include <errno.h>
#include <sys/mman.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <pciaccess.h>
static int _x_error_occurred;
static int
can_use_shm(Display *dpy)
{
int major, minor, has_pixmap;
if (!XShmQueryExtension(dpy))
return 0;
XShmQueryVersion(dpy, &major, &minor, &has_pixmap);
return has_pixmap;
}
static int test_subpage(Display *dpy)
{
const int width = 10;
const int height = 10;
uint32_t pixel = 0xffffffff;
char *expected;
XShmSegmentInfo shm;
Pixmap pixmap, source;
XGCValues gcv;
GC gc;
printf("Creating %dx%d SHM pixmap\n", width, height);
_x_error_occurred = 0;
expected = malloc(4096);
if (expected == NULL)
return 0;
shm.shmid = shmget(IPC_PRIVATE, 4096, IPC_CREAT | 0666);
if (shm.shmid == -1)
return 0;
shm.shmaddr = shmat(shm.shmid, 0, 0);
if (shm.shmaddr == (char *) -1) {
shmctl(shm.shmid, IPC_RMID, NULL);
return 0;
}
shm.readOnly = False;
XShmAttach(dpy, &shm);
memset(shm.shmaddr, 0xcc, 4096);
memset(expected, 0xcc, 4096);
memset(expected + 64, 0xff, 4*width * height);
pixmap = XShmCreatePixmap(dpy, DefaultRootWindow(dpy),
shm.shmaddr + 64, &shm, width, height, 24);
XSync(dpy, False);
shmctl(shm.shmid, IPC_RMID, NULL);
source = XCreatePixmap(dpy, DefaultRootWindow(dpy),
width, height, 24);
gcv.graphics_exposures = False;
gcv.subwindow_mode = IncludeInferiors;
gcv.foreground = pixel;
gcv.function = GXcopy;
gcv.fill_style = FillSolid;
gc = XCreateGC(dpy, pixmap, GCGraphicsExposures | GCSubwindowMode | GCFillStyle | GCForeground | GCFunction, &gcv);
XCopyArea(dpy, pixmap, source, gc,
0, 0, width, height, 0, 0);
XFillRectangle(dpy, source, gc, 0, 0, width, height);
XCopyArea(dpy, source, pixmap, gc,
0, 0, width, height, 0, 0);
XSync(dpy, True);
if (_x_error_occurred == 0)
_x_error_occurred = memcmp(shm.shmaddr, expected, 4096);
printf("%s: %s\n", __func__, _x_error_occurred ? "failed" : "passed");
XShmDetach(dpy, &shm);
shmdt(shm.shmaddr);
free(expected);
return !_x_error_occurred;;
}
static int
_check_error_handler(Display *display,
XErrorEvent *event)
{
printf("X11 error from display %s, serial=%ld, error=%d, req=%d.%d\n",
DisplayString(display),
event->serial,
event->error_code,
event->request_code,
event->minor_code);
_x_error_occurred++;
return False; /* ignored */
}
int main(void)
{
Display *dpy;
int error = 0;
dpy = XOpenDisplay(NULL);
if (dpy == NULL)
return 77;
if (DefaultDepth(dpy, DefaultScreen(dpy)) != 24)
return 77;
if (!can_use_shm(dpy))
return 0;
XSetErrorHandler(_check_error_handler);
error += test_subpage(dpy);
return !!error;
}
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