tests/spec/arb_copy_buffer/copy_buffer_coherency.c

   1 /*
   2  * Copyright © 2011 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  * Authors:
  24  *    Ben Widawsky <ben@bwidawsk.net>
  25  *
  26  */
  27
  28 #include "piglit-util-gl.h"
  29
  30 #define COPY_BUFFER_SIZE (4<<20)
  31 uint8_t src_data[COPY_BUFFER_SIZE];
  32 uint8_t dest_data[COPY_BUFFER_SIZE];
  33
  34 PIGLIT_GL_TEST_CONFIG_BEGIN
  35
  36         config.supports_gl_compat_version = 10;
  37
  38         config.window_width = 400;
  39         config.window_height = 300;
  40         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  41         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  42
  43 PIGLIT_GL_TEST_CONFIG_END
  44
  45 enum piglit_result
  46 piglit_display(void)
  47 {
  48         return PIGLIT_PASS;
  49 }
  50
  51 static enum piglit_result
  52 do_copy()
  53 {
  54         GLuint buffer_handles[2];
  55
  56         glGenBuffersARB(2, buffer_handles);
  57
  58         glBindBufferARB(GL_COPY_READ_BUFFER, buffer_handles[0]);
  59         glBindBufferARB(GL_COPY_WRITE_BUFFER, buffer_handles[1]);
  60         glBufferData(GL_COPY_READ_BUFFER, COPY_BUFFER_SIZE, src_data,
  61                      GL_STREAM_COPY);
  62         glBufferData(GL_COPY_WRITE_BUFFER, COPY_BUFFER_SIZE, NULL,
  63                      GL_STREAM_READ);
  64
  65         glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0,
  66                             COPY_BUFFER_SIZE);
  67
  68         glGetBufferSubDataARB(GL_COPY_WRITE_BUFFER, 0, COPY_BUFFER_SIZE,
  69                               dest_data);
  70
  71         if (memcmp(src_data, dest_data, COPY_BUFFER_SIZE) != 0)
  72                 return PIGLIT_FAIL;
  73
  74         return PIGLIT_PASS;
  75 }
  76
  77 void
  78 piglit_init(int argc, char *argv[])
  79 {
  80         piglit_require_gl_version(15);
  81
  82         piglit_require_extension("GL_ARB_vertex_buffer_object");
  83         piglit_require_extension("GL_ARB_copy_buffer");
  84
  85         memset(src_data, 0xff, COPY_BUFFER_SIZE);
  86
  87         piglit_report_result(do_copy());
  88 }