android_hardware_buffer_compat.h 3.1 KB

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  1. // Copyright 2017 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_HARDWARE_BUFFER_COMPAT_H_
  5. #define BASE_ANDROID_ANDROID_HARDWARE_BUFFER_COMPAT_H_
  6. #include <android/hardware_buffer.h>
  7. #include <android/sensor.h>
  8. #include "base/base_export.h"
  9. #include "base/no_destructor.h"
  10. extern "C" {
  11. using PFAHardwareBuffer_allocate = void (*)(const AHardwareBuffer_Desc* desc,
  12. AHardwareBuffer** outBuffer);
  13. using PFAHardwareBuffer_acquire = void (*)(AHardwareBuffer* buffer);
  14. using PFAHardwareBuffer_describe = void (*)(const AHardwareBuffer* buffer,
  15. AHardwareBuffer_Desc* outDesc);
  16. using PFAHardwareBuffer_lock = int (*)(AHardwareBuffer* buffer,
  17. uint64_t usage,
  18. int32_t fence,
  19. const ARect* rect,
  20. void** outVirtualAddress);
  21. using PFAHardwareBuffer_recvHandleFromUnixSocket =
  22. int (*)(int socketFd, AHardwareBuffer** outBuffer);
  23. using PFAHardwareBuffer_release = void (*)(AHardwareBuffer* buffer);
  24. using PFAHardwareBuffer_sendHandleToUnixSocket =
  25. int (*)(const AHardwareBuffer* buffer, int socketFd);
  26. using PFAHardwareBuffer_unlock = int (*)(AHardwareBuffer* buffer,
  27. int32_t* fence);
  28. }
  29. namespace base {
  30. // This class provides runtime support for working with AHardwareBuffer objects
  31. // on Android O systems without requiring building for the Android O NDK level.
  32. // Don't call GetInstance() unless IsSupportAvailable() returns true.
  33. class BASE_EXPORT AndroidHardwareBufferCompat {
  34. public:
  35. static bool IsSupportAvailable();
  36. static AndroidHardwareBufferCompat& GetInstance();
  37. AndroidHardwareBufferCompat(const AndroidHardwareBufferCompat&) = delete;
  38. AndroidHardwareBufferCompat& operator=(const AndroidHardwareBufferCompat&) =
  39. delete;
  40. void Allocate(const AHardwareBuffer_Desc* desc, AHardwareBuffer** outBuffer);
  41. void Acquire(AHardwareBuffer* buffer);
  42. void Describe(const AHardwareBuffer* buffer, AHardwareBuffer_Desc* outDesc);
  43. int Lock(AHardwareBuffer* buffer,
  44. uint64_t usage,
  45. int32_t fence,
  46. const ARect* rect,
  47. void** out_virtual_address);
  48. int RecvHandleFromUnixSocket(int socketFd, AHardwareBuffer** outBuffer);
  49. void Release(AHardwareBuffer* buffer);
  50. int SendHandleToUnixSocket(const AHardwareBuffer* buffer, int socketFd);
  51. int Unlock(AHardwareBuffer* buffer, int32_t* fence);
  52. private:
  53. friend class NoDestructor<AndroidHardwareBufferCompat>;
  54. AndroidHardwareBufferCompat();
  55. PFAHardwareBuffer_allocate allocate_;
  56. PFAHardwareBuffer_acquire acquire_;
  57. PFAHardwareBuffer_describe describe_;
  58. PFAHardwareBuffer_lock lock_;
  59. PFAHardwareBuffer_recvHandleFromUnixSocket recv_handle_;
  60. PFAHardwareBuffer_release release_;
  61. PFAHardwareBuffer_sendHandleToUnixSocket send_handle_;
  62. PFAHardwareBuffer_unlock unlock_;
  63. };
  64. } // namespace base
  65. #endif // BASE_ANDROID_ANDROID_HARDWARE_BUFFER_COMPAT_H_