tests/spec/arb_copy_buffer/data-sync.c

   1 /*
   2  * Copyright © 2013 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
  24 /** @file data-sync.c
  25  *
  26  * Tests that glBufferData() synchronizes correctly with
  27  * glCopyBufferSubData().
  28  *
  29  * We make sure that a glBufferData() over the read buffer after the
  30  * copy has no effect, while a glBufferData() over the write buffer
  31  * after the copy does have an effect.
  32  */
  33
  34 #include "piglit-util-gl.h"
  35
  36 PIGLIT_GL_TEST_CONFIG_BEGIN
  37
  38         config.supports_gl_compat_version = 15;
  39         config.supports_gl_core_version = 31;
  40
  41         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  42         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  43
  44 PIGLIT_GL_TEST_CONFIG_END
  45
  46 void
  47 piglit_init(int argc, char *argv[])
  48 {
  49         bool pass = true;
  50         uint32_t dummy_data_1[4], dummy_data_2[4];
  51         uint32_t good_data[4] = {0, 1, 2, 3};
  52         uint32_t result_data[4];
  53         bool subtest_pass;
  54         size_t size = sizeof(good_data);
  55         GLuint buffer_handles[2];
  56
  57         memset(dummy_data_1, 0xaa, size);
  58         memset(dummy_data_2, 0xbb, size);
  59
  60         piglit_require_extension("GL_ARB_copy_buffer");
  61
  62         glGenBuffers(2, buffer_handles);
  63         glBindBuffer(GL_COPY_READ_BUFFER, buffer_handles[0]);
  64         glBindBuffer(GL_COPY_WRITE_BUFFER, buffer_handles[1]);
  65
  66         glBufferData(GL_COPY_READ_BUFFER, size, good_data, GL_STREAM_COPY);
  67         glBufferData(GL_COPY_WRITE_BUFFER, size, dummy_data_1, GL_STREAM_COPY);
  68         glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER,
  69                             0, 0, size);
  70         glBufferData(GL_COPY_READ_BUFFER, size, dummy_data_2, GL_STREAM_COPY);
  71         memset(result_data, 0xd0, size);
  72         glGetBufferSubData(GL_COPY_WRITE_BUFFER, 0, size, result_data);
  73         subtest_pass = memcmp(good_data, result_data, size) == 0;
  74         if (!subtest_pass) {
  75                 fprintf(stderr, "found 0x%08x 0x%08x 0x%08x 0x%08x\n",
  76                         result_data[0], result_data[1],
  77                         result_data[2], result_data[3]);
  78                 pass = false;
  79         }
  80         piglit_report_subtest_result(subtest_pass ? PIGLIT_PASS : PIGLIT_FAIL,
  81                                      "overwrite source data");
  82
  83         glBufferData(GL_COPY_READ_BUFFER, size, dummy_data_2, GL_STREAM_COPY);
  84         glBufferData(GL_COPY_WRITE_BUFFER, size, dummy_data_1, GL_STREAM_COPY);
  85         glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER,
  86                             0, 0, size);
  87         glBufferData(GL_COPY_WRITE_BUFFER, size, good_data, GL_STREAM_COPY);
  88         memset(result_data, 0xd0, size);
  89         glGetBufferSubData(GL_COPY_WRITE_BUFFER, 0, size, result_data);
  90         subtest_pass = memcmp(good_data, result_data, size) == 0;
  91         if (!subtest_pass) {
  92                 fprintf(stderr, "found 0x%08x 0x%08x 0x%08x 0x%08x\n",
  93                         result_data[0], result_data[1],
  94                         result_data[2], result_data[3]);
  95                 pass = false;
  96         }
  97         piglit_report_subtest_result(subtest_pass ? PIGLIT_PASS : PIGLIT_FAIL,
  98                                      "overwrite destination data");
  99
 100         piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
 101 }
 102
 103 enum piglit_result
 104 piglit_display(void)
 105 {
 106         /* UNREACHED */
 107         return PIGLIT_FAIL;
 108 }