tests/spec/arb_uniform_buffer_object/buffer-targets.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 buffer-targets.c
  25  *
  26  * Tests that the GL_UNIFORM_BUFFER target is accepted by other gl
  27  * entrypoints.
  28  *
  29  * From the GL_ARB_uniform_buffer_object spec:
  30  *
  31  *     "Accepted by the <target> parameters of BindBuffer, BufferData,
  32  *      BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, and
  33  *      GetBufferPointerv:
  34  *
  35  *          UNIFORM_BUFFER"
  36  */
  37
  38 #include "piglit-util-gl.h"
  39
  40 PIGLIT_GL_TEST_CONFIG_BEGIN
  41
  42         config.supports_gl_compat_version = 10;
  43         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  44         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  45
  46 PIGLIT_GL_TEST_CONFIG_END
  47
  48 void
  49 piglit_init(int argc, char **argv)
  50 {
  51         bool pass = true;
  52         GLuint bo;
  53         uint8_t in_data[1] = {0xaa};
  54         uint8_t out_data[1] = {0xd0};
  55         void *ptr1, *ptr2;
  56
  57         piglit_require_extension("GL_ARB_uniform_buffer_object");
  58
  59         glGenBuffers(1, &bo);
  60
  61         glBindBuffer(GL_UNIFORM_BUFFER, bo);
  62         pass = pass && piglit_check_gl_error(0);
  63
  64         glBufferData(GL_UNIFORM_BUFFER, 1, NULL, GL_STATIC_READ);
  65         pass = pass && piglit_check_gl_error(0);
  66
  67         glBufferSubData(GL_UNIFORM_BUFFER, 0, 1, in_data);
  68         pass = pass && piglit_check_gl_error(0);
  69
  70         ptr1 = glMapBuffer(GL_UNIFORM_BUFFER, GL_READ_ONLY);
  71         pass = pass && piglit_check_gl_error(0);
  72
  73         glGetBufferPointerv(GL_UNIFORM_BUFFER, GL_BUFFER_MAP_POINTER, &ptr2);
  74         pass = pass && piglit_check_gl_error(0);
  75         assert(ptr1 == ptr2);
  76
  77         glUnmapBuffer(GL_UNIFORM_BUFFER);
  78         pass = pass && piglit_check_gl_error(0);
  79
  80         glGetBufferSubData(GL_UNIFORM_BUFFER, 0, 1, out_data);
  81         pass = pass && piglit_check_gl_error(0);
  82         assert(memcmp(in_data, out_data, sizeof(in_data)) == 0);
  83
  84         piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
  85 }
  86
  87 enum piglit_result piglit_display(void)
  88 {
  89         /* UNREACHED */
  90         return PIGLIT_FAIL;
  91 }
  92