tests/spec/arb_uniform_buffer_object/getactiveuniformsiv-uniform-block-index.c

   1 /*
   2  * Copyright © 2012 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 getactiveuniformsiv-uniform-block-index.c
  25  *
  26  * Tests that glGetActiveUniforms() returns the block index for a
  27  * uniform that the uniform block was given by
  28  * glGetUniformBlockIndex.()
  29  */
  30
  31 #include "piglit-util-gl.h"
  32
  33 PIGLIT_GL_TEST_CONFIG_BEGIN
  34
  35         config.supports_gl_compat_version = 10;
  36
  37         config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  38         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  39
  40 PIGLIT_GL_TEST_CONFIG_END
  41
  42 static const char vs_source[] =
  43         "#extension GL_ARB_uniform_buffer_object : require\n"
  44         "\n"
  45         "uniform ub_a { vec4 a; };\n"
  46         "uniform ub_b { vec4 b; };\n"
  47         "\n"
  48         "void main()\n"
  49         "{\n"
  50         "       gl_Position = a + b;\n"
  51         "}\n";
  52
  53 static const char fs_source[] =
  54         "#extension GL_ARB_uniform_buffer_object : require\n"
  55         "\n"
  56         "uniform ub_b { vec4 b; };\n"
  57         "uniform ub_c { vec4 c; };\n"
  58         "uniform vec4 d;\n"
  59         "\n"
  60         "void main()\n"
  61         "{\n"
  62         "       gl_FragColor = b + c + d;\n"
  63         "}\n";
  64
  65 void
  66 piglit_init(int argc, char **argv)
  67 {
  68         bool pass = true;
  69         GLuint prog;
  70         const char *uniform_block_names[3] = { "ub_a", "ub_b", "ub_c" };
  71         const char *uniform_names[4] = { "a", "b", "c", "d" };
  72         GLuint block_indices[3];
  73         GLuint uniform_indices[4];
  74         GLint uniform_block_indices[4];
  75         int i;
  76
  77         piglit_require_extension("GL_ARB_uniform_buffer_object");
  78
  79         prog = piglit_build_simple_program(vs_source, fs_source);
  80
  81         for (i = 0; i < 3; i++) {
  82                 block_indices[i] =
  83                         glGetUniformBlockIndex(prog, uniform_block_names[i]);
  84
  85                 printf("Uniform block \"%s\" index: 0x%08x\n",
  86                        uniform_block_names[i], block_indices[i]);
  87         }
  88
  89         if (block_indices[0] == block_indices[1] ||
  90             block_indices[0] == block_indices[2] ||
  91             block_indices[1] == block_indices[2]) {
  92                 piglit_report_result(PIGLIT_FAIL);
  93         }
  94
  95         glGetUniformIndices(prog, 4, uniform_names, uniform_indices);
  96         glGetActiveUniformsiv(prog, 4, uniform_indices,
  97                               GL_UNIFORM_BLOCK_INDEX, uniform_block_indices);
  98         for (i = 0; i < 4; i++) {
  99                 int expected_index = (i == 3) ? -1 : block_indices[i];
 100
 101                 printf("Uniform \"%s\": index %d, block index %d",
 102                        uniform_names[i],
 103                        uniform_indices[i],
 104                        uniform_block_indices[i]);
 105
 106                 if (uniform_block_indices[i] != expected_index) {
 107                         printf(" FAIL");
 108                         pass = false;
 109                 }
 110
 111                 printf("\n");
 112         }
 113
 114         piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
 115 }
 116
 117 enum piglit_result piglit_display(void)
 118 {
 119         /* UNREACHED */
 120         return PIGLIT_FAIL;
 121 }