1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16#include "renderstate/PixelBufferState.h"
17
18namespace android {
19namespace uirenderer {
20
21PixelBufferState::PixelBufferState()
22        : mCurrentPixelBuffer(0) {
23}
24
25bool PixelBufferState::bind(GLuint buffer) {
26    if (mCurrentPixelBuffer != buffer) {
27        glBindBuffer(GL_PIXEL_UNPACK_BUFFER, buffer);
28        mCurrentPixelBuffer = buffer;
29        return true;
30    }
31    return false;
32}
33
34bool PixelBufferState::unbind() {
35    if (mCurrentPixelBuffer) {
36        glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
37        mCurrentPixelBuffer = 0;
38        return true;
39    }
40    return false;
41}
42
43} /* namespace uirenderer */
44} /* namespace android */
45
46