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/**
* Copyright © 2013 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.
*/
/**
* Test that Clear() clears no buffers when passed 0
*
* Section 4.2.3(Clearing the Buffers) of OpenGL 3.2 Core says:
* "The value to which each buffer is cleared depends on the setting of the
* clear value for that buffer. If buf is zero, no buffers are cleared."
*
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 32;
config.supports_gl_core_version = 32;
config.window_visual = PIGLIT_GL_VISUAL_RGB |
PIGLIT_GL_VISUAL_DOUBLE |
PIGLIT_GL_VISUAL_DEPTH |
PIGLIT_GL_VISUAL_STENCIL;
PIGLIT_GL_TEST_CONFIG_END
void
piglit_init(int argc, char **argv)
{
}
enum piglit_result
piglit_display(void)
{
bool pass = true;
float green[] = {0, 1, 0};
glEnable(GL_DEPTH_TEST);
/* Set first base values to the buffers */
glClearColor(0.0, 1.0, 0.0, 1.0);
glClearDepth(.8);
glClearStencil(1);
glClear(GL_COLOR_BUFFER_BIT |
GL_DEPTH_BUFFER_BIT |
GL_STENCIL_BUFFER_BIT);
/* Set a second value to the buffers */
glClearColor(1.0, 0.0, 0.0, 1.0);
glClearDepth(.2);
glClearStencil(2);
glClear(0);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
/* if probe returns the first value, glClear(0) didn't clear values */
pass = piglit_probe_rect_rgb(0, 0, piglit_width, piglit_height, green)
&& pass;
pass = piglit_probe_rect_depth(0, 0, piglit_width, piglit_height, .8)
&& pass;
pass = piglit_probe_rect_stencil(0, 0, piglit_width, piglit_height, 1)
&& pass;
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
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