android_image_reader_compat.h 3.9 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889
  1. // Copyright 2018 The Chromium Authors. All rights reserved.
  2. // Use of this source code is governed by a BSD-style license that can be
  3. // found in the LICENSE file.
  4. #ifndef BASE_ANDROID_ANDROID_IMAGE_READER_COMPAT_H_
  5. #define BASE_ANDROID_ANDROID_IMAGE_READER_COMPAT_H_
  6. #include "base/android/android_image_reader_abi.h"
  7. #include "base/base_export.h"
  8. #include "base/no_destructor.h"
  9. namespace base {
  10. namespace android {
  11. // This class provides runtime support for working with AImage, AImageReader and
  12. // ANativeWindow objects on Android O systems without requiring building for the
  13. // Android O NDK level. Don't call GetInstance() unless IsSupported() returns
  14. // true.
  15. class BASE_EXPORT AndroidImageReader {
  16. public:
  17. // Thread safe GetInstance.
  18. static AndroidImageReader& GetInstance();
  19. AndroidImageReader(const AndroidImageReader&) = delete;
  20. AndroidImageReader& operator=(const AndroidImageReader&) = delete;
  21. // Check if the image reader usage is supported. This function returns TRUE
  22. // if android version is >=OREO, image reader support is not disabled and all
  23. // the required functions are loaded.
  24. bool IsSupported();
  25. // Naming convention of all the below functions are chosen to exactly match
  26. // the function names in the NDK.
  27. void AImage_delete(AImage* image);
  28. void AImage_deleteAsync(AImage* image, int releaseFenceFd);
  29. media_status_t AImage_getHardwareBuffer(const AImage* image,
  30. AHardwareBuffer** buffer);
  31. media_status_t AImage_getWidth(const AImage* image, int32_t* width);
  32. media_status_t AImage_getHeight(const AImage* image, int32_t* height);
  33. media_status_t AImage_getCropRect(const AImage* image, AImageCropRect* rect);
  34. media_status_t AImageReader_newWithUsage(int32_t width,
  35. int32_t height,
  36. int32_t format,
  37. uint64_t usage,
  38. int32_t maxImages,
  39. AImageReader** reader);
  40. media_status_t AImageReader_setImageListener(
  41. AImageReader* reader,
  42. AImageReader_ImageListener* listener);
  43. void AImageReader_delete(AImageReader* reader);
  44. media_status_t AImageReader_getFormat(const AImageReader* reader,
  45. int32_t* format);
  46. media_status_t AImageReader_getWindow(AImageReader* reader,
  47. ANativeWindow** window);
  48. media_status_t AImageReader_acquireLatestImageAsync(AImageReader* reader,
  49. AImage** image,
  50. int* acquireFenceFd);
  51. media_status_t AImageReader_acquireNextImageAsync(AImageReader* reader,
  52. AImage** image,
  53. int* acquireFenceFd);
  54. jobject ANativeWindow_toSurface(JNIEnv* env, ANativeWindow* window);
  55. private:
  56. friend class base::NoDestructor<AndroidImageReader>;
  57. AndroidImageReader();
  58. bool LoadFunctions();
  59. const bool is_supported_;
  60. pAImage_delete AImage_delete_;
  61. pAImage_deleteAsync AImage_deleteAsync_;
  62. pAImage_getHardwareBuffer AImage_getHardwareBuffer_;
  63. pAImage_getWidth AImage_getWidth_;
  64. pAImage_getHeight AImage_getHeight_;
  65. pAImage_getCropRect AImage_getCropRect_;
  66. pAImageReader_newWithUsage AImageReader_newWithUsage_;
  67. pAImageReader_setImageListener AImageReader_setImageListener_;
  68. pAImageReader_delete AImageReader_delete_;
  69. pAImageReader_getFormat AImageReader_getFormat_;
  70. pAImageReader_getWindow AImageReader_getWindow_;
  71. pAImageReader_acquireLatestImageAsync AImageReader_acquireLatestImageAsync_;
  72. pAImageReader_acquireNextImageAsync AImageReader_acquireNextImageAsync_;
  73. pANativeWindow_toSurface ANativeWindow_toSurface_;
  74. };
  75. } // namespace android
  76. } // namespace base
  77. #endif // BASE_ANDROID_ANDROID_IMAGE_READER_COMPAT_H_