[Piglit] [PATCH] Add test case to verify swapping buffers without active context.

[Brian Paul]

This test should probably be moved to tests/glx/ because it clearly
won't work on Windows and it's not specifically a GL 2.1 test.

It should also probably be renamed to something like swapbuffers-no-context.c

-Brian

On Tue, Jan 10, 2012 at 2:36 AM, Yi Sun <yi.sun at intel.com> wrote:
> From: Sun Yi <yi.sun at intel.com>
>
> Test swapping buffers on NULL context.
> Verify that swapping buffers without active context is ignored.
> Test rendered a triangle afterwards active context is deselected
> and buffers swapping is performed by calling function glXSwapBuffers.
>
> Signed-off-by: Yi Sun <yi.sun at intel.com>
> ---
>  tests/spec/gl-2.1/CMakeLists.gl.txt |    1 +
>  tests/spec/gl-2.1/swapbuffer.c      |   65 +++++++++++++++++++++++++++++++++++
>  2 files changed, 66 insertions(+), 0 deletions(-)
>  create mode 100644 tests/spec/gl-2.1/swapbuffer.c
>
> diff --git a/tests/spec/gl-2.1/CMakeLists.gl.txt b/tests/spec/gl-2.1/CMakeLists.gl.txt
> index 9a4afbe..c1002f6 100644
> --- a/tests/spec/gl-2.1/CMakeLists.gl.txt
> +++ b/tests/spec/gl-2.1/CMakeLists.gl.txt
> @@ -14,3 +14,4 @@ link_libraries (
>  )
>
>  add_executable (gl-2.1-minmax minmax.c)
> +add_executable (swapbuffer swapbuffer.c)
> diff --git a/tests/spec/gl-2.1/swapbuffer.c b/tests/spec/gl-2.1/swapbuffer.c
> new file mode 100644
> index 0000000..ff7920a
> --- /dev/null
> +++ b/tests/spec/gl-2.1/swapbuffer.c
> @@ -0,0 +1,65 @@
> +/* Copyright © 2012 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.
> + */
> +
> +/**
> + * file swapbuffer.c
> + *
> + * Test swapping buffers on NULL context.
> + * Verify that swapping buffers without active context is ignored.
> + * Test rendered a triangle afterwards active context is deselected
> + * and buffers swapping is performed.
> + *
> + * Test is expected no crash occurs during testcase execution.
> + *
> + * Author Yi Sun <yi.sun at intel.com>
> + */
> +
> +#include "piglit-util.h"
> +#include <X11/Xlib.h>
> +#include <GL/glx.h>
> +
> +int piglit_width = 100, piglit_height = 100;
> +int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE;
> +
> +
> +enum piglit_result
> +piglit_display(void)
> +{
> +       glBegin(GL_TRIANGLES);
> +               glVertex2f(0,0);
> +               glVertex2f(0,1);
> +               glVertex2f(1,1);
> +       glEnd();
> +
> +       Display *dpy = glXGetCurrentDisplay();
> +       GLXDrawable draw = glXGetCurrentDrawable();
> +
> +       glXMakeContextCurrent(dpy, 0, 0, 0);    //deselect the context
> +       glXSwapBuffers(dpy, draw);                              //swap buffer, no crashing expected
> +
> +       return PIGLIT_PASS;
> +}
> +
> +void piglit_init(int argc, char **argv)
> +{
> +
> +}
> --
> 1.7.6.4
>
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