cros_gralloc/gralloc3/CrosGralloc3Mapper.h

   1 /*
   2  * Copyright 2020 The Chromium OS Authors. All rights reserved.
   3  * Use of this source code is governed by a BSD-style license that can be
   4  * found in the LICENSE file.
   5  */
   6
   7 #include <android/hardware/graphics/mapper/3.0/IMapper.h>
   8
   9 #include <optional>
  10
  11 #include "cros_gralloc/cros_gralloc_driver.h"
  12 #include "cros_gralloc/cros_gralloc_handle.h"
  13
  14 class CrosGralloc3Mapper : public android::hardware::graphics::mapper::V3_0::IMapper {
  15   public:
  16     CrosGralloc3Mapper();
  17
  18     android::hardware::Return<void> createDescriptor(const BufferDescriptorInfo& description,
  19                                                      createDescriptor_cb hidlCb) override;
  20
  21     android::hardware::Return<void> importBuffer(const android::hardware::hidl_handle& rawHandle,
  22                                                  importBuffer_cb hidlCb) override;
  23
  24     android::hardware::Return<android::hardware::graphics::mapper::V3_0::Error> freeBuffer(
  25             void* rawHandle) override;
  26
  27     android::hardware::Return<android::hardware::graphics::mapper::V3_0::Error> validateBufferSize(
  28             void* rawHandle, const BufferDescriptorInfo& descriptor, uint32_t stride) override;
  29
  30     android::hardware::Return<void> getTransportSize(void* rawHandle,
  31                                                      getTransportSize_cb hidlCb) override;
  32
  33     android::hardware::Return<void> lock(void* rawHandle, uint64_t cpuUsage,
  34                                          const Rect& accessRegion,
  35                                          const android::hardware::hidl_handle& acquireFence,
  36                                          lock_cb hidlCb) override;
  37
  38     android::hardware::Return<void> lockYCbCr(void* rawHandle, uint64_t cpuUsage,
  39                                               const Rect& accessRegion,
  40                                               const android::hardware::hidl_handle& acquireFence,
  41                                               lockYCbCr_cb _hidl_cb) override;
  42
  43     android::hardware::Return<void> unlock(void* rawHandle, unlock_cb hidlCb) override;
  44
  45     android::hardware::Return<void> isSupported(const BufferDescriptorInfo& descriptor,
  46                                                 isSupported_cb hidlCb) override;
  47
  48   private:
  49     int getResolvedDrmFormat(android::hardware::graphics::common::V1_2::PixelFormat pixelFormat,
  50                              uint64_t bufferUsage, uint32_t* outDrmFormat);
  51
  52     struct LockResult {
  53         android::hardware::graphics::mapper::V3_0::Error error;
  54
  55         uint8_t* mapped[DRV_MAX_PLANES];
  56     };
  57     LockResult lockInternal(cros_gralloc_handle_t crosHandle, uint64_t cpuUsage,
  58                             const Rect& accessRegion,
  59                             const android::hardware::hidl_handle& acquireFence);
  60
  61     std::unique_ptr<cros_gralloc_driver> mDriver;
  62 };
  63
  64 extern "C" android::hardware::graphics::mapper::V3_0::IMapper* HIDL_FETCH_IMapper(const char* name);