tests/spec/arb_sample_shading/execution/api.c

   1 /*
   2  * Copyright © 2013 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 /**
  25  * @file api.c
  26  *
  27  * Tests new APIs and enums added by ARB_sample_shading spec:
  28  */
  29
  30
  31 #include "piglit-util-gl.h"
  32
  33 PIGLIT_GL_TEST_CONFIG_BEGIN
  34
  35         config.supports_gl_compat_version = 10;
  36         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  37         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  38
  39 PIGLIT_GL_TEST_CONFIG_END
  40
  41 enum piglit_result
  42 piglit_display(void)
  43 {
  44         /* Unreached */
  45         return PIGLIT_FAIL;
  46 }
  47
  48 void
  49 piglit_init(int argc, char **argv)
  50 {
  51         float value;
  52         bool pass = true;
  53         piglit_require_extension("GL_ARB_sample_shading");
  54
  55         pass = !glIsEnabled(GL_SAMPLE_SHADING_ARB) && pass;
  56         glEnable(GL_SAMPLE_SHADING_ARB);
  57         pass = glIsEnabled(GL_SAMPLE_SHADING_ARB) && pass;
  58         glDisable(GL_SAMPLE_SHADING_ARB);
  59         pass = !glIsEnabled(GL_SAMPLE_SHADING_ARB) && pass;
  60         piglit_check_gl_error(GL_NO_ERROR);
  61
  62         glGetFloatv(GL_MIN_SAMPLE_SHADING_VALUE_ARB, &value);
  63         pass = (value == 0.0) && pass;
  64         glMinSampleShadingARB(0.5);
  65         glGetFloatv(GL_MIN_SAMPLE_SHADING_VALUE_ARB, &value);
  66         pass = (value == 0.5) && pass;
  67         /* Verify GL_MIN_SAMPLE_SHADING_VALUE_ARB is clamped to range [0, 1] */
  68         glMinSampleShadingARB(1.5);
  69         glGetFloatv(GL_MIN_SAMPLE_SHADING_VALUE_ARB, &value);
  70         pass = (value == 1.0) && pass;
  71         glMinSampleShadingARB(-0.5);
  72         glGetFloatv(GL_MIN_SAMPLE_SHADING_VALUE_ARB, &value);
  73         pass = (value == 0.0) && pass;
  74         piglit_check_gl_error(GL_NO_ERROR);
  75
  76         piglit_report_result( pass ? PIGLIT_PASS : PIGLIT_FAIL);
  77 }