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/*
* Copyright © 2009-2010 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.
*/
/** @file arb_es2_compatibility-depthrangef.c
*
* Tests that ARB_ES2_compatibility adds glDepthRangef (as opposed to
* glDepthRange) and that it works. Based on general/depth-clamp-range.c.
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.window_width = 150;
config.window_height = 150;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_DEPTH;
PIGLIT_GL_TEST_CONFIG_END
void
piglit_init(int argc, char **argv)
{
piglit_require_extension("GL_ARB_ES2_compatibility");
}
enum piglit_result
piglit_display(void)
{
#ifdef GL_ARB_ES2_compatibility
GLboolean pass = GL_TRUE;
float red[4] = {1.0, 0.0, 0.0, 0.0};
float green[4] = {0.0, 1.0, 0.0, 0.0};
float blue[4] = {0.0, 0.0, 1.0, 0.0};
piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
glClearColor(0.0, 0.0, 1.0, 0.0);
glClearDepthf(0.5);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
/* Keep in mind that the ortho projection flips near and far's signs,
* so 1.0 to quad()'s z maps to glDepthRange's near, and -1.0 maps to
* glDepthRange's far.
*/
glColor4fv(green);
glDepthRangef(0, 1);
piglit_draw_rect_z(0.5,
0, 0,
piglit_width / 2, piglit_height);
glColor4fv(red);
glDepthRangef(1, 0);
piglit_draw_rect_z(0.5,
piglit_width / 2, 0,
piglit_width, piglit_height);
pass = piglit_probe_pixel_rgb(piglit_width * 1 / 4, piglit_height / 2,
green) && pass;
pass = piglit_probe_pixel_rgb(piglit_width * 3 / 4, piglit_height / 2,
blue) && pass;
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
#else
return PIGLIT_SKIP;
#endif /* GL_ARB_ES2_compatibility */
}
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