1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
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
16 #include "image_chain.h"
17
18 namespace OHOS {
19 namespace Rosen {
ImageChain(std::vector<std::shared_ptr<Input>> inputs)20 ImageChain::ImageChain(std::vector<std::shared_ptr<Input> > inputs) : inputs_(inputs)
21 {
22 CreatTexture(srcTextureID_);
23 CreatTexture(dstTextureID_);
24
25 glGenFramebuffers(1, &frameBufferID_);
26 if (inputs_.size() == 1) {
27 flagSeries_ = true;
28 }
29 }
30
Render()31 void ImageChain::Render()
32 {
33 if (flagSeries_) {
34 ProcessData data {srcTextureID_, dstTextureID_, frameBufferID_, 0, 0};
35 SeriesRendering(data);
36 }
37
38 if (!flagSeries_) {
39 ParallelRendering();
40 }
41 }
42
SeriesRendering(ProcessData & data)43 void ImageChain::SeriesRendering(ProcessData& data)
44 {
45 inputs_.at(0)->Process(data);
46 }
47
CreatTexture(unsigned int & textureID)48 void ImageChain::CreatTexture(unsigned int& textureID)
49 {
50 glGenTextures(1, &textureID);
51 glBindTexture(GL_TEXTURE_2D, textureID);
52 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
53 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
54 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
55 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
56 glBindTexture(GL_TEXTURE_2D, 0);
57 }
58 } // namespcae Rosen
59 } // namespace OHOS