1 /*
2  * Copyright (C) 2024 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 #ifndef IMAGE_EFFECT_GPU_BRIGHTNESS_ALGO_H
17 #define IMAGE_EFFECT_GPU_BRIGHTNESS_ALGO_H
18 
19 #include "error_code.h"
20 #include "effect_buffer.h"
21 #include "any.h"
22 
23 #include "core/render_default_data.h"
24 #include "core/algorithm_program.h"
25 #include "render_environment.h"
26 #include "effect_context.h"
27 
28 namespace OHOS {
29 namespace Media {
30 namespace Effect {
31 class BrightnessFilterData {
32 public:
33     RenderTexturePtr inputTexture_ = nullptr;
34     unsigned int outputWidth_;
35     unsigned int outputHeight_;
36     float ratio;
37 };
38 using BrightnessFilterDataPtr = std::shared_ptr<BrightnessFilterData>;
39 class GpuBrightnessAlgo {
40 public:
41     ErrorCode OnApplyRGBA8888(EffectBuffer *src, EffectBuffer *dst, std::map<std::string, Plugin::Any> &value,
42         const std::shared_ptr<EffectContext> &context);
43     ErrorCode Release();
44     ErrorCode Init();
45     void Render(GLenum target, RenderTexturePtr tex);
46 private:
47     float ParseBrightness(std::map<std::string, Plugin::Any> &value);
48     BrightnessFilterDataPtr renderEffectData_;
49     void PreDraw(GLenum target);
50     void PostDraw(GLenum target);
51     RenderContext *context_{ nullptr };
52     std::string vertexShaderCode_;
53     std::string fragmentShaderCode_;
54     GLuint fbo_{ 0 };
55     AlgorithmProgram *shader_{ nullptr };
56     RenderMesh *renderMesh_{ nullptr };
57 };
58 } // namespace Effect
59 } // namespace Media
60 } // namespace OHOS
61 
62 #endif // IMAGE_EFFECT_GPU_BRIGHTNESS_ALGO_H