tests/spec/arb_clear_buffer_object/sub-mapped.c

   1 /*
   2  * Copyright © 2014 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 /**
  25  * \file sub-mapped.c
  26  *
  27  * From the GL_ARB_clear_buffer_object spec:
  28  * "An INVALID_OPERATION error is generated if any part of the specified range
  29  *  of the buffer bound to <target> is currently mapped."
  30  *
  31  * This implies that it is allowed e.g. clear the upper half of a buffer
  32  * while the lower half is mapped.
  33  */
  34
  35 #include "piglit-util-gl.h"
  36 #include "common.h"
  37
  38 PIGLIT_GL_TEST_CONFIG_BEGIN
  39
  40         config.supports_gl_compat_version = 15;
  41         config.supports_gl_core_version = 31;
  42         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  43
  44 PIGLIT_GL_TEST_CONFIG_END
  45
  46
  47 void
  48 piglit_init(int argc, char **argv)
  49 {
  50         bool pass = true;
  51         const int buffer_size = 1<<20;
  52         unsigned int buffer;
  53         char *mapped_data;
  54         static const char *const data_zero = "\x00\x00\x00\x00";
  55         static const char *const data_one  = "\xff\xff\xff\xff";
  56         static const char *const data_init = "\xff\xff\xff\xff"
  57                                              "\xff\xff\xff\xff"
  58                                              "\x00\x00\x00\x00"
  59                                              "\x00\x00\x00\x00"
  60                                              "\x55\x55\x55\x55"
  61                                              "\x55\x55\x55\x55"
  62                                              "\xaa\xaa\xaa\xaa"
  63                                              "\xaa\xaa\xaa\xaa"
  64                                              "\xff\x00\xff\x00"
  65                                              "\xff\x00\xff\x00"
  66                                              "\x00\xff\x00\xff"
  67                                              "\x00\xff\x00\xff"
  68                                              "\x91\xcc\x45\x36"
  69                                              "\xd3\xe4\xe3\x5b"
  70                                              "\x79\x1e\x21\x39"
  71                                              "\xa8\xfa\x69\x6a";
  72
  73
  74         piglit_require_extension("GL_ARB_clear_buffer_object");
  75
  76         glGenBuffers(1, &buffer);
  77         glBindBuffer(GL_ARRAY_BUFFER, buffer);
  78         glBufferData(GL_ARRAY_BUFFER, buffer_size, NULL, GL_STREAM_READ);
  79         fill_array_buffer(64, data_init);
  80
  81         mapped_data = glMapBufferRange(GL_ARRAY_BUFFER, 0, buffer_size/2,
  82                         GL_MAP_WRITE_BIT);
  83         memset(mapped_data, '\x00', buffer_size/2);
  84         glClearBufferSubData(GL_ARRAY_BUFFER, GL_RGBA8, buffer_size/2,
  85                         buffer_size/2, GL_RGBA, GL_UNSIGNED_BYTE, data_one);
  86         glUnmapBuffer(GL_ARRAY_BUFFER);
  87
  88         pass = check_array_buffer_sub_data(0, buffer_size/2,
  89                         4, data_zero) && pass;
  90         pass = check_array_buffer_sub_data(buffer_size/2, buffer_size/2,
  91                         4, data_one) && pass;
  92
  93         glBindBuffer(GL_ARRAY_BUFFER, 0);
  94         glDeleteBuffers(1, &buffer);
  95
  96         pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
  97
  98         piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
  99 }
 100
 101
 102 enum piglit_result
 103 piglit_display(void)
 104 {
 105         return PIGLIT_PASS;
 106 }
 107