tests/spec/ext_transform_feedback/discard-api.c

   1 /*
   2  * Copyright © 2011 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 DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "piglit-util-gl.h"
  25
  26 /**
  27  * @file discard-api.c
  28  *
  29  * Tests basic API support for GL_RASTERIZER_DISCARD.
  30  *
  31  * From the EXT_transform_feedback spec:
  32  *
  33  *     "Accepted by the <cap> parameter of Enable, Disable, and
  34  *      IsEnabled, and by the <pname> parameter of GetBooleanv,
  35  *      GetIntegerv, GetFloatv, and GetDoublev:
  36  *
  37  *        RASTERIZER_DISCARD_EXT                            0x8C89"
  38  */
  39
  40 PIGLIT_GL_TEST_CONFIG_BEGIN
  41
  42         config.supports_gl_compat_version = 10;
  43
  44         config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  45         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  46
  47 PIGLIT_GL_TEST_CONFIG_END
  48
  49 enum piglit_result
  50 piglit_display(void)
  51 {
  52         /* UNREACHED */
  53         return PIGLIT_FAIL;
  54 }
  55
  56 void
  57 piglit_init(int argc, char **argv)
  58 {
  59         GLint enabled;
  60
  61         piglit_require_transform_feedback();
  62
  63         glEnable(GL_RASTERIZER_DISCARD);
  64         if (!glIsEnabled(GL_RASTERIZER_DISCARD))
  65                 piglit_report_result(PIGLIT_FAIL);
  66         glGetIntegerv(GL_RASTERIZER_DISCARD, &enabled);
  67         if (!enabled)
  68                 piglit_report_result(PIGLIT_FAIL);
  69         if (!piglit_check_gl_error(GL_NO_ERROR))
  70                 piglit_report_result(PIGLIT_FAIL);
  71
  72         glDisable(GL_RASTERIZER_DISCARD);
  73         if (glIsEnabled(GL_RASTERIZER_DISCARD))
  74                 piglit_report_result(PIGLIT_FAIL);
  75         glGetIntegerv(GL_RASTERIZER_DISCARD, &enabled);
  76         if (enabled)
  77                 piglit_report_result(PIGLIT_FAIL);
  78         if (!piglit_check_gl_error(GL_NO_ERROR))
  79                 piglit_report_result(PIGLIT_FAIL);
  80
  81         piglit_report_result(PIGLIT_PASS);
  82 }