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 
18 namespace android {
19 namespace uirenderer {
20 
PixelBufferState()21 PixelBufferState::PixelBufferState()
22         : mCurrentPixelBuffer(0) {
23 }
24 
bind(GLuint buffer)25 bool 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 
unbind()34 bool 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