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
|
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2020 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup gpu
*/
#include "gl_context.hh"
#include "gl_debug.hh"
#include "gl_index_buffer.hh"
namespace blender::gpu {
GLIndexBuf::~GLIndexBuf()
{
GLContext::buf_free(ibo_id_);
}
void GLIndexBuf::bind()
{
if (is_subrange_) {
static_cast<GLIndexBuf *>(src_)->bind();
return;
}
if (ibo_id_ == 0) {
glGenBuffers(1, &ibo_id_);
if (data_ == nullptr) {
debug::raise_gl_error("Trying to use Index Buffer but the buffer contains no data");
}
}
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo_id_);
if (data_ != nullptr) {
size_t size = this->size_get();
/* Sends data to GPU. */
glBufferData(GL_ELEMENT_ARRAY_BUFFER, size, data_, GL_STATIC_DRAW);
/* No need to keep copy of data in system memory. */
MEM_SAFE_FREE(data_);
}
}
} // namespace blender::gpu
|
