tests/spec/arb_uniform_buffer_object/bindbuffer-general-point.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 bindbuffer-general-point.c
  25  *
  26  * Tests that the glBindBuffer* entrypoints also bind to the general
  27  * binding point.
  28  */
  29
  30 #include "piglit-util-gl.h"
  31
  32 PIGLIT_GL_TEST_CONFIG_BEGIN
  33
  34         config.supports_gl_compat_version = 10;
  35         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  36         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  37
  38 PIGLIT_GL_TEST_CONFIG_END
  39
  40 void
  41 piglit_init(int argc, char **argv)
  42 {
  43         bool pass = true;
  44         GLuint bo[2];
  45         GLint binding;
  46
  47         piglit_require_extension("GL_ARB_uniform_buffer_object");
  48
  49         glGenBuffers(2, bo);
  50         glBindBuffer(GL_UNIFORM_BUFFER, bo[0]);
  51         glBufferData(GL_UNIFORM_BUFFER, 1, NULL, GL_STATIC_READ);
  52         glBindBuffer(GL_UNIFORM_BUFFER, bo[1]);
  53         glBufferData(GL_UNIFORM_BUFFER, 1, NULL, GL_STATIC_READ);
  54
  55         /* From the GL_ARB_uniform_buffer_object spec:
  56          *
  57          *     "Buffer objects are bound to uniform block binding
  58          *     points by calling one of the commands
  59          *
  60          *     void BindBufferRange(...)
  61          *     void BindBufferBase(...)
  62          *
  63          *      There is an array of buffer object binding points with
  64          *      which uniform blocks can be associated via
  65          *      UniformBlockBinding, plus a single general binding
  66          *      point that can be used by other buffer object
  67          *      manipulation functions (e.g. BindBuffer,
  68          *      MapBuffer). Both commands bind the buffer object named
  69          *      by <buffer> to the general binding point, and
  70          *      additionally bind the buffer object to the binding
  71          *      point in the array given by <index>."
  72          */
  73         glBindBufferBase(GL_UNIFORM_BUFFER, 0, bo[0]);
  74         glGetIntegerv(GL_UNIFORM_BUFFER_BINDING, &binding);
  75         if (binding != bo[0]) {
  76                 fprintf(stderr, "GL_UNIFORM_BUFFER_BINDING[0] was %d, expected %d\n",
  77                         binding, bo[0]);
  78                 pass = false;
  79         }
  80
  81         glBindBufferRange(GL_UNIFORM_BUFFER, 1, bo[1], 0, 1);
  82         glGetIntegerv(GL_UNIFORM_BUFFER_BINDING, &binding);
  83         if (binding != bo[1]) {
  84                 fprintf(stderr, "GL_UNIFORM_BUFFER_BINDING[1] was %d, expected %d\n",
  85                         binding, bo[1]);
  86                 pass = false;
  87         }
  88
  89         piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
  90 }
  91
  92 enum piglit_result piglit_display(void)
  93 {
  94         /* UNREACHED */
  95         return PIGLIT_FAIL;
  96 }
  97