| // Copyright 2018 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef BASE_ANDROID_ANDROID_IMAGE_READER_COMPAT_H_ |
| #define BASE_ANDROID_ANDROID_IMAGE_READER_COMPAT_H_ |
| |
| #include "base/android/android_image_reader_abi.h" |
| #include "base/base_export.h" |
| #include "base/no_destructor.h" |
| |
| namespace base { |
| namespace android { |
| |
| // This class provides runtime support for working with AImage, AImageReader and |
| // ANativeWindow objects on Android O systems without requiring building for the |
| // Android O NDK level. Don't call GetInstance() unless IsSupported() returns |
| // true. |
| class BASE_EXPORT AndroidImageReader { |
| public: |
| // Thread safe GetInstance. |
| static AndroidImageReader& GetInstance(); |
| |
| AndroidImageReader(const AndroidImageReader&) = delete; |
| AndroidImageReader& operator=(const AndroidImageReader&) = delete; |
| |
| // Check if the image reader usage is supported. This function returns TRUE |
| // if android version is >=OREO, image reader support is not disabled and all |
| // the required functions are loaded. |
| bool IsSupported(); |
| |
| // Naming convention of all the below functions are chosen to exactly match |
| // the function names in the NDK. |
| void AImage_delete(AImage* image); |
| void AImage_deleteAsync(AImage* image, int releaseFenceFd); |
| media_status_t AImage_getHardwareBuffer(const AImage* image, |
| AHardwareBuffer** buffer); |
| media_status_t AImage_getWidth(const AImage* image, int32_t* width); |
| media_status_t AImage_getHeight(const AImage* image, int32_t* height); |
| media_status_t AImage_getCropRect(const AImage* image, AImageCropRect* rect); |
| media_status_t AImageReader_newWithUsage(int32_t width, |
| int32_t height, |
| int32_t format, |
| uint64_t usage, |
| int32_t maxImages, |
| AImageReader** reader); |
| media_status_t AImageReader_setImageListener( |
| AImageReader* reader, |
| AImageReader_ImageListener* listener); |
| void AImageReader_delete(AImageReader* reader); |
| media_status_t AImageReader_getFormat(const AImageReader* reader, |
| int32_t* format); |
| media_status_t AImageReader_getWindow(AImageReader* reader, |
| ANativeWindow** window); |
| media_status_t AImageReader_acquireLatestImageAsync(AImageReader* reader, |
| AImage** image, |
| int* acquireFenceFd); |
| media_status_t AImageReader_acquireNextImageAsync(AImageReader* reader, |
| AImage** image, |
| int* acquireFenceFd); |
| jobject ANativeWindow_toSurface(JNIEnv* env, ANativeWindow* window); |
| |
| private: |
| friend class base::NoDestructor<AndroidImageReader>; |
| |
| AndroidImageReader(); |
| bool LoadFunctions(); |
| |
| const bool is_supported_; |
| pAImage_delete AImage_delete_; |
| pAImage_deleteAsync AImage_deleteAsync_; |
| pAImage_getHardwareBuffer AImage_getHardwareBuffer_; |
| pAImage_getWidth AImage_getWidth_; |
| pAImage_getHeight AImage_getHeight_; |
| pAImage_getCropRect AImage_getCropRect_; |
| pAImageReader_newWithUsage AImageReader_newWithUsage_; |
| pAImageReader_setImageListener AImageReader_setImageListener_; |
| pAImageReader_delete AImageReader_delete_; |
| pAImageReader_getFormat AImageReader_getFormat_; |
| pAImageReader_getWindow AImageReader_getWindow_; |
| pAImageReader_acquireLatestImageAsync AImageReader_acquireLatestImageAsync_; |
| pAImageReader_acquireNextImageAsync AImageReader_acquireNextImageAsync_; |
| pANativeWindow_toSurface ANativeWindow_toSurface_; |
| }; |
| |
| } // namespace android |
| } // namespace base |
| |
| #endif // BASE_ANDROID_ANDROID_IMAGE_READER_COMPAT_H_ |