1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*
* Copyright © 2014 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
/**
* \file sub-mapped.c
*
* From the GL_ARB_clear_buffer_object spec:
* "An INVALID_OPERATION error is generated if any part of the specified range
* of the buffer bound to <target> is currently mapped."
*
* This implies that it is allowed e.g. clear the upper half of a buffer
* while the lower half is mapped.
*/
#include "piglit-util-gl.h"
#include "common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 15;
config.supports_gl_core_version = 31;
PIGLIT_GL_TEST_CONFIG_END
void
piglit_init(int argc, char **argv)
{
bool pass = true;
const int buffer_size = 1<<20;
unsigned int buffer;
char *mapped_data;
static const char *const data_zero = "\x00\x00\x00\x00";
static const char *const data_one = "\xff\xff\xff\xff";
static const char *const data_init = "\xff\xff\xff\xff"
"\xff\xff\xff\xff"
"\x00\x00\x00\x00"
"\x00\x00\x00\x00"
"\x55\x55\x55\x55"
"\x55\x55\x55\x55"
"\xaa\xaa\xaa\xaa"
"\xaa\xaa\xaa\xaa"
"\xff\x00\xff\x00"
"\xff\x00\xff\x00"
"\x00\xff\x00\xff"
"\x00\xff\x00\xff"
"\x91\xcc\x45\x36"
"\xd3\xe4\xe3\x5b"
"\x79\x1e\x21\x39"
"\xa8\xfa\x69\x6a";
piglit_require_extension("GL_ARB_clear_buffer_object");
glGenBuffers(1, &buffer);
glBindBuffer(GL_ARRAY_BUFFER, buffer);
glBufferData(GL_ARRAY_BUFFER, buffer_size, NULL, GL_STREAM_READ);
fill_array_buffer(64, data_init);
mapped_data = glMapBufferRange(GL_ARRAY_BUFFER, 0, buffer_size/2,
GL_MAP_WRITE_BIT);
memset(mapped_data, '\x00', buffer_size/2);
glClearBufferSubData(GL_ARRAY_BUFFER, GL_RGBA8, buffer_size/2,
buffer_size/2, GL_RGBA, GL_UNSIGNED_BYTE, data_one);
glUnmapBuffer(GL_ARRAY_BUFFER);
pass = check_array_buffer_sub_data(0, buffer_size/2,
4, data_zero) && pass;
pass = check_array_buffer_sub_data(buffer_size/2, buffer_size/2,
4, data_one) && pass;
glBindBuffer(GL_ARRAY_BUFFER, 0);
glDeleteBuffers(1, &buffer);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
enum piglit_result
piglit_display(void)
{
return PIGLIT_PASS;
}
|
