tests/spec/arb_map_buffer_alignment/sanity_test.c

   1 /*
   2  * Copyright © Marek Olšák <maraeo@gmail.com>
   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
  25 #include "piglit-util-gl.h"
  26
  27 PIGLIT_GL_TEST_CONFIG_BEGIN
  28
  29         config.supports_gl_compat_version = 10;
  30
  31         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  32
  33 PIGLIT_GL_TEST_CONFIG_END
  34
  35 enum piglit_result
  36 piglit_display(void)
  37 {
  38         return PIGLIT_FAIL;
  39 }
  40
  41 void
  42 piglit_init(int argc, char *argv[])
  43 {
  44         GLuint b1, b2;
  45         uintptr_t ptr;
  46         GLint alignment = 0;
  47
  48         piglit_require_gl_version(15);
  49
  50         piglit_require_extension("GL_ARB_map_buffer_range");
  51         piglit_require_extension("GL_ARB_map_buffer_alignment");
  52
  53         glGetIntegerv(GL_MIN_MAP_BUFFER_ALIGNMENT, &alignment);
  54
  55         /* Sanity check. */
  56         if (alignment < 64) {
  57                 printf("GL_MIN_MAP_BUFFER_ALIGNMENT must be at least 64.\n");
  58                 piglit_report_result(PIGLIT_FAIL);
  59         }
  60
  61         glGenBuffers(1, &b1);
  62         glBindBuffer(GL_ARRAY_BUFFER, b1);
  63         glBufferData(GL_ARRAY_BUFFER, alignment + 24, NULL, GL_STATIC_DRAW);
  64
  65         glGenBuffers(1, &b2);
  66         glBindBuffer(GL_ARRAY_BUFFER, b2);
  67         glBufferData(GL_ARRAY_BUFFER, 1, NULL, GL_STATIC_DRAW);
  68
  69         /* glMapBufferRange, offset > 0 */
  70         glBindBuffer(GL_ARRAY_BUFFER, b1);
  71         ptr = (intptr_t)glMapBufferRange(GL_ARRAY_BUFFER, 24, alignment,
  72                                          GL_MAP_READ_BIT | GL_MAP_WRITE_BIT);
  73
  74         if (ptr && (ptr - 24) % alignment != 0) {
  75                 printf("glMapBufferRange returned an unaligned pointer.\n");
  76                 piglit_report_result(PIGLIT_FAIL);
  77         }
  78
  79         /* glMapBuffer. */
  80         glBindBuffer(GL_ARRAY_BUFFER, b2);
  81         ptr = (intptr_t)glMapBuffer(GL_ARRAY_BUFFER, GL_READ_WRITE);
  82
  83         if (ptr % alignment != 0) {
  84                 printf("glMapBuffer returned an unaligned pointer.\n");
  85                 piglit_report_result(PIGLIT_FAIL);
  86         }
  87
  88         piglit_report_result(PIGLIT_PASS);
  89 }