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/*
* Copyright © 2010 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
/** @file glx-swap-exchange.c
*
* Test that GLX_SWAP_EXCHANGE_OML does in fact cause the back buffer to get
* exchanged on swap.
*/
#include "piglit-util.h"
#include "piglit-glx-util.h"
int piglit_width = 50, piglit_height = 50;
static Display *dpy;
static Window win;
static XVisualInfo *visinfo;
enum piglit_result
draw(Display *dpy)
{
GLboolean pass = GL_TRUE;
float green[] = {0.0, 1.0, 0.0, 0.0};
GLXContext ctx;
ctx = piglit_get_glx_context(dpy, visinfo);
glXMakeCurrent(dpy, win, ctx);
/* Clear background to gray */
glClearColor(0.0, 1.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
glXSwapBuffers(dpy, win);
glClearColor(1.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
glXSwapBuffers(dpy, win);
pass = piglit_probe_pixel_rgba(0, 0, green);
glXSwapBuffers(dpy, win);
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
XVisualInfo *
piglit_get_swap_exchange_visual(Display *dpy)
{
XVisualInfo *visinfo;
int attrib[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
GLX_SWAP_METHOD_OML, GLX_SWAP_EXCHANGE_OML,
None
};
int screen = DefaultScreen(dpy);
visinfo = glXChooseVisual(dpy, screen, attrib);
if (visinfo == NULL) {
fprintf(stderr,
"Couldn't get a GLX_SWAP_EXCHANGE_OML, RGBA, "
"double-buffered visual\n");
piglit_report_result(PIGLIT_SKIP);
exit(1);
}
return visinfo;
}
int
main(int argc, char **argv)
{
int i;
const char *glx_extension_list;
for(i = 1; i < argc; ++i) {
if (!strcmp(argv[i], "-auto"))
piglit_automatic = 1;
else
fprintf(stderr, "Unknown option: %s\n", argv[i]);
}
dpy = XOpenDisplay(NULL);
if (dpy == NULL) {
fprintf(stderr, "couldn't open display\n");
piglit_report_result(PIGLIT_FAIL);
}
glx_extension_list = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
if (strstr(glx_extension_list, "GLX_OML_swap_method") == NULL) {
printf("Requires GLX_OML_swap_method\n");
piglit_report_result(PIGLIT_SKIP);
}
visinfo = piglit_get_swap_exchange_visual(dpy);
win = piglit_get_glx_window(dpy, visinfo);
XMapWindow(dpy, win);
piglit_glx_event_loop(dpy, draw);
return 0;
}
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