tests/shaders/vp-combined-image-units.c

   1 /*
   2  * Copyright © 2009 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  * Authors:
  24  *    Eric Anholt <eric@anholt.net>
  25  *
  26  */
  27
  28 /** @file vp-combined-image-units.c
  29  *
  30  * Tests that ARB_shader_program returns a not-impossible result for
  31  * GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS.  Catches a regression in wine caused
  32  * by bug #25518.
  33  */
  34
  35 #include "piglit-util-gl.h"
  36
  37 PIGLIT_GL_TEST_CONFIG_BEGIN
  38
  39         config.supports_gl_compat_version = 10;
  40
  41         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  42
  43 PIGLIT_GL_TEST_CONFIG_END
  44
  45 enum piglit_result
  46 piglit_display(void)
  47 {
  48         GLboolean pass = GL_TRUE;
  49         GLint combined, fragment, vertex;
  50
  51         glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &combined);
  52         glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &vertex);
  53
  54         if (combined < vertex) {
  55                 fprintf(stderr,
  56                         "Max vertex units (%d) > combined units (%d)\n",
  57                         vertex, combined);
  58                 pass = GL_FALSE;
  59         }
  60
  61         glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &fragment);
  62         if (combined < fragment) {
  63                 fprintf(stderr,
  64                         "Max fragment units (%d) > "
  65                         "combined units (%d)\n",
  66                         fragment, combined);
  67                 pass = GL_FALSE;
  68         }
  69
  70         pass = pass && glGetError() == 0;
  71
  72         piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
  73
  74         return PIGLIT_FAIL; /* NOTREACHED */
  75 }
  76
  77 void
  78 piglit_init(int argc, char **argv)
  79 {
  80         piglit_require_extension("GL_ARB_vertex_shader");
  81 }
  82