tests/spec/arb_vertex_program/getenv4d-with-error.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
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 /** @file getenv4d-with-error.c
  25  *
  26  * Tests for a bug in Mesa where glGetProgramEnvParameter4dARB would
  27  * fail to update the result if there was an existing GL error in the
  28  * context.
  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_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  37
  38 PIGLIT_GL_TEST_CONFIG_END
  39
  40 void
  41 piglit_init(int argc, char **argv)
  42 {
  43         bool pass = true;
  44         double test_data[4] = { 0.1, 0.2, 0.3, 0.4 };
  45         double result_data[4];
  46         float epsilon = .00001;
  47
  48         piglit_require_extension("GL_ARB_vertex_program");
  49
  50         glProgramEnvParameter4dARB(GL_VERTEX_PROGRAM_ARB, 0,
  51                                    test_data[0],
  52                                    test_data[1],
  53                                    test_data[2],
  54                                    test_data[3]);
  55
  56         /* Produce a GL error to trick Mesa's
  57          * glGetProgramEnvParameterdvARB code.
  58          */
  59         glDepthFunc(0xd0d0d0d0);
  60
  61         glGetProgramEnvParameterdvARB(GL_VERTEX_PROGRAM_ARB, 0, result_data);
  62
  63         if (fabs(test_data[0] - result_data[0]) > epsilon ||
  64             fabs(test_data[1] - result_data[1]) > epsilon ||
  65             fabs(test_data[2] - result_data[2]) > epsilon ||
  66             fabs(test_data[3] - result_data[3]) > epsilon) {
  67                 fprintf(stderr, "glProgramEnvParamter4dvARB failed:\n");
  68                 fprintf(stderr, "Expected: (%f %f %f %f)\n",
  69                         test_data[0],
  70                         test_data[1],
  71                         test_data[2],
  72                         test_data[3]);
  73                 fprintf(stderr, "Expected: (%f %f %f %f)\n",
  74                         result_data[0],
  75                         result_data[1],
  76                         result_data[2],
  77                         result_data[3]);
  78
  79                 pass = false;
  80         }
  81
  82         /* Clear our error. */
  83         (void)glGetError();
  84
  85         piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
  86 }
  87
  88 enum piglit_result
  89 piglit_display(void)
  90 {
  91         return PIGLIT_FAIL;
  92 }