blob: 43993e7f3886ba9dac7e8ba3ddb48df10c506876 (
plain)
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
|
//
// Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Buffer.cpp: Implements the gl::Buffer class, representing storage of vertex and/or
// index data. Implements GL buffer objects and related functionality.
// [OpenGL ES 2.0.24] section 2.9 page 21.
#include "libGLESv2/Buffer.h"
namespace gl
{
Buffer::Buffer(GLuint id) : RefCountObject(id)
{
mContents = NULL;
mSize = 0;
mUsage = GL_DYNAMIC_DRAW;
}
Buffer::~Buffer()
{
delete[] mContents;
}
void Buffer::bufferData(const void *data, GLsizeiptr size, GLenum usage)
{
if (size == 0)
{
delete[] mContents;
mContents = NULL;
}
else if (size != mSize)
{
delete[] mContents;
mContents = new GLubyte[size];
memset(mContents, 0, size);
}
if (data != NULL && size > 0)
{
memcpy(mContents, data, size);
}
mSize = size;
mUsage = usage;
}
void Buffer::bufferSubData(const void *data, GLsizeiptr size, GLintptr offset)
{
memcpy(mContents + offset, data, size);
}
}
|
