1/*
2 * Copyright (c) 2021 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 INTERFACES_INNERKITS_SURFACE_SURFACE_UTILS_H
17#define INTERFACES_INNERKITS_SURFACE_SURFACE_UTILS_H
18
19#include <unordered_map>
20#include <mutex>
21#include "surface.h"
22
23namespace OHOS {
24class SurfaceUtils {
25public:
26    static SurfaceUtils* GetInstance();
27
28    // get surface by uniqueId.
29    sptr<Surface> GetSurface(uint64_t uniqueId);
30    // maintenance map with uniqueId and surface.
31    SurfaceError Add(uint64_t uniqueId, const wptr<Surface> &surface);
32    // remove surface by uniqueId.
33    SurfaceError Remove(uint64_t uniqueId);
34    // Compute transform matrix
35    void ComputeTransformMatrix(float matrix[16], uint32_t matrixSize,
36        sptr<SurfaceBuffer>& buffer, GraphicTransformType& transform, Rect& crop);
37    void ComputeTransformMatrixV2(float matrix[16], uint32_t matrixSize,
38        sptr<SurfaceBuffer>& buffer, GraphicTransformType& transform, Rect& crop);
39
40    void* GetNativeWindow(uint64_t uniqueId);
41    SurfaceError AddNativeWindow(uint64_t uniqueId, void *nativeWidow);
42    SurfaceError RemoveNativeWindow(uint64_t uniqueId);
43
44private:
45    SurfaceUtils() = default;
46    virtual ~SurfaceUtils();
47    std::array<float, 16> MatrixProduct(const std::array<float, 16>& lMat, const std::array<float, 16>& rMat);
48    static constexpr int32_t TRANSFORM_MATRIX_ELE_COUNT = 16;
49    void ComputeTransformByMatrix(GraphicTransformType& transform,
50        std::array<float, TRANSFORM_MATRIX_ELE_COUNT> *transformMatrix);
51    void ComputeTransformByMatrixV2(GraphicTransformType& transform,
52        std::array<float, TRANSFORM_MATRIX_ELE_COUNT> *transformMatrix);
53
54    std::unordered_map<uint64_t, wptr<Surface>> surfaceCache_;
55    std::mutex mutex_;
56    std::unordered_map<uint64_t, void*> nativeWindowCache_;
57};
58} // namespace OHOS
59
60#endif // INTERFACES_INNERKITS_SURFACE_SURFACE_UTILS_H
61