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