1#include "precompiled.h"
2//
3// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
4// Use of this source code is governed by a BSD-style license that can be
5// found in the LICENSE file.
6//
7// Implementation of the state class for mananging GLES 3 Vertex Array Objects.
8//
9
10#include "libGLESv2/VertexArray.h"
11#include "libGLESv2/Buffer.h"
12
13namespace gl
14{
15
16VertexArray::VertexArray(rx::Renderer *renderer, GLuint id)
17    : RefCountObject(id)
18{
19}
20
21VertexArray::~VertexArray()
22{
23    for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
24    {
25        mVertexAttributes[i].mBoundBuffer.set(NULL);
26    }
27    mElementArrayBuffer.set(NULL);
28}
29
30void VertexArray::detachBuffer(GLuint bufferName)
31{
32    for (int attribute = 0; attribute < MAX_VERTEX_ATTRIBS; attribute++)
33    {
34        if (mVertexAttributes[attribute].mBoundBuffer.id() == bufferName)
35        {
36            mVertexAttributes[attribute].mBoundBuffer.set(NULL);
37        }
38    }
39
40    if (mElementArrayBuffer.id() == bufferName)
41    {
42        mElementArrayBuffer.set(NULL);
43    }
44}
45
46const VertexAttribute& VertexArray::getVertexAttribute(unsigned int attributeIndex) const
47{
48    ASSERT(attributeIndex < MAX_VERTEX_ATTRIBS);
49    return mVertexAttributes[attributeIndex];
50}
51
52void VertexArray::setVertexAttribDivisor(GLuint index, GLuint divisor)
53{
54    ASSERT(index < gl::MAX_VERTEX_ATTRIBS);
55    mVertexAttributes[index].mDivisor = divisor;
56}
57
58void VertexArray::enableAttribute(unsigned int attributeIndex, bool enabledState)
59{
60    ASSERT(attributeIndex < gl::MAX_VERTEX_ATTRIBS);
61    mVertexAttributes[attributeIndex].mArrayEnabled = enabledState;
62}
63
64void VertexArray::setAttributeState(unsigned int attributeIndex, gl::Buffer *boundBuffer, GLint size, GLenum type,
65                                    bool normalized, bool pureInteger, GLsizei stride, const void *pointer)
66{
67    ASSERT(attributeIndex < gl::MAX_VERTEX_ATTRIBS);
68    mVertexAttributes[attributeIndex].setState(boundBuffer, size, type, normalized, pureInteger, stride, pointer);
69}
70
71}