1// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15#include "VertexArray.h"
16
17namespace es2
18{
19
20VertexArray::VertexArray(GLuint name) : gl::NamedObject(name)
21{
22}
23
24VertexArray::~VertexArray()
25{
26 for(size_t i = 0; i < MAX_VERTEX_ATTRIBS; i++)
27 {
28 mVertexAttributes[i].mBoundBuffer = nullptr;
29 }
30 mElementArrayBuffer = nullptr;
31}
32
33void VertexArray::detachBuffer(GLuint bufferName)
34{
35 for(size_t attribute = 0; attribute < MAX_VERTEX_ATTRIBS; attribute++)
36 {
37 if(mVertexAttributes[attribute].mBoundBuffer.name() == bufferName)
38 {
39 mVertexAttributes[attribute].mBoundBuffer = nullptr;
40 }
41 }
42
43 if(mElementArrayBuffer.name() == bufferName)
44 {
45 mElementArrayBuffer = nullptr;
46 }
47}
48
49const VertexAttribute& VertexArray::getVertexAttribute(size_t attributeIndex) const
50{
51 ASSERT(attributeIndex < MAX_VERTEX_ATTRIBS);
52 return mVertexAttributes[attributeIndex];
53}
54
55void VertexArray::setVertexAttribDivisor(GLuint index, GLuint divisor)
56{
57 ASSERT(index < MAX_VERTEX_ATTRIBS);
58 mVertexAttributes[index].mDivisor = divisor;
59}
60
61void VertexArray::enableAttribute(unsigned int attributeIndex, bool enabledState)
62{
63 ASSERT(attributeIndex < MAX_VERTEX_ATTRIBS);
64 mVertexAttributes[attributeIndex].mArrayEnabled = enabledState;
65}
66
67void VertexArray::setAttributeState(unsigned int attributeIndex, Buffer *boundBuffer, GLint size, GLenum type,
68 bool normalized, bool pureInteger, GLsizei stride, const void *pointer)
69{
70 ASSERT(attributeIndex < MAX_VERTEX_ATTRIBS);
71 mVertexAttributes[attributeIndex].mBoundBuffer = boundBuffer;
72 mVertexAttributes[attributeIndex].mSize = size;
73 mVertexAttributes[attributeIndex].mType = type;
74 mVertexAttributes[attributeIndex].mNormalized = normalized;
75 mVertexAttributes[attributeIndex].mPureInteger = pureInteger;
76 mVertexAttributes[attributeIndex].mStride = stride;
77 mVertexAttributes[attributeIndex].mPointer = pointer;
78}
79
80void VertexArray::setElementArrayBuffer(Buffer *buffer)
81{
82 mElementArrayBuffer = buffer;
83}
84
85}
86