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
|
/*
* Copyright 2016 VMware, Inc.
*
* 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.
*/
/**
* Simple test of copying within a single buffer.
*
* Brian Paul
* 21 June 2016
*/
#include "piglit-util-gl.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 15;
config.supports_gl_core_version = 31;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
config.khr_no_error_support = PIGLIT_NO_ERRORS;
PIGLIT_GL_TEST_CONFIG_END
void
piglit_init(int argc, char *argv[])
{
bool pass = true;
GLuint buffer;
GLubyte data[250], *map;
int i;
piglit_require_extension("GL_ARB_copy_buffer");
glGenBuffers(1, &buffer);
glBindBuffer(GL_COPY_READ_BUFFER, buffer);
glBindBuffer(GL_COPY_WRITE_BUFFER, buffer);
/* create empty buffer */
glBufferData(GL_COPY_READ_BUFFER, 1000, NULL, GL_STREAM_COPY);
/* fill last 250 of 1000 bytes */
for (i = 0; i < 250; i++)
data[i] = i;
glBufferSubData(GL_COPY_READ_BUFFER, 750, 250, data);
/* copy last 250 bytes to offset 500 */
glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER,
750, 500, 250);
/* copy last 500 bytes to start of buffer */
glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER,
500, 0, 500);
/* check results */
map = glMapBuffer(GL_COPY_READ_BUFFER, GL_READ_ONLY);
assert(map);
for (i = 0; i < 1000; i++) {
if (map[i] != i % 250) {
printf("Wrong buffer value at position %u.\n", i);
printf("Expected %u, found %u\n", i % 250, map[i]);
pass = false;
break;
}
}
glUnmapBuffer(GL_COPY_READ_BUFFER);
glDeleteBuffers(1, &buffer);
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
enum piglit_result
piglit_display(void)
{
/* unreachable */
return PIGLIT_FAIL;
}
|
