android_vendor_qcom_opensource_display-commonsys-intf/libgralloc1/gr_buf_mgr.cpp

/*
 * Copyright (c) 2011-2016 The Linux Foundation. All rights reserved.
 * Not a Contribution
 *
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <utility>

#include "qd_utils.h"
#include "gr_priv_handle.h"
#include "gr_buf_descriptor.h"
#include "gr_utils.h"
#include "gr_buf_mgr.h"
#include "qdMetaData.h"

namespace gralloc1 {

BufferManager::BufferManager() {
  char property[PROPERTY_VALUE_MAX];

  // Map framebuffer memory
  if ((property_get("debug.gralloc.map_fb_memory", property, NULL) > 0) &&
      (!strncmp(property, "1", PROPERTY_VALUE_MAX) ||
       (!strncasecmp(property, "true", PROPERTY_VALUE_MAX)))) {
    map_fb_mem_ = true;
  }

  // Enable UBWC for framebuffer
  if ((property_get("debug.gralloc.enable_fb_ubwc", property, NULL) > 0) &&
      (!strncmp(property, "1", PROPERTY_VALUE_MAX) ||
       (!strncasecmp(property, "true", PROPERTY_VALUE_MAX)))) {
    ubwc_for_fb_ = true;
  }

  handles_map_.clear();
}

BufferManager::~BufferManager() {
  if (allocator_) {
    delete allocator_;
  }
}

bool BufferManager::Init() {
  allocator_ = new Allocator();

  return allocator_->Init();
}

gralloc1_error_t BufferManager::AllocateBuffers(uint32_t num_descriptors,
                                                const BufferDescriptor *descriptors,
                                                buffer_handle_t *out_buffers) {
  bool shared = true;
  gralloc1_error_t status = GRALLOC1_ERROR_NONE;

  // since GRALLOC1_CAPABILITY_TEST_ALLOCATE capability is supported
  // client can ask to test the allocation by passing NULL out_buffers
  bool test_allocate = !out_buffers;

  // Check if input descriptors can be supported AND
  // Find out if a single buffer can be shared for all the given input descriptors
  uint32_t i = 0;
  int max_buf_index = -1;
  shared = allocator_->CheckForBufferSharing(num_descriptors, descriptors, &max_buf_index);

  if (test_allocate) {
    status = shared ? GRALLOC1_ERROR_NOT_SHARED : status;
    return status;
  }

  if (shared && (max_buf_index >= 0)) {
    // Allocate one and duplicate/copy the handles for each descriptor
    if (AllocateBuffer(descriptors[max_buf_index], &out_buffers[max_buf_index])) {
      return GRALLOC1_ERROR_NO_RESOURCES;
    }

    for (i = 0; i < num_descriptors; i++) {
      // Create new handle for a given descriptor.
      // Current assumption is even MetaData memory would be same
      // Need to revisit if there is a need for own metadata memory
      if (i != UINT(max_buf_index)) {
        CreateSharedHandle(out_buffers[max_buf_index], descriptors[i], &out_buffers[i]);

        // since we just created handle out of existing handle add it to map
        locker_.lock();
        handles_map_.insert(std::pair<private_handle_t const *, int>(
            reinterpret_cast<private_handle_t const *>(out_buffers[i]), 1));
        locker_.unlock();
      }
    }
  } else {
    // Buffer sharing is not feasible.
    // Allocate seperate buffer for each descriptor
    for (i = 0; i < num_descriptors; i++) {
      if (AllocateBuffer(descriptors[i], &out_buffers[i])) {
        return GRALLOC1_ERROR_NO_RESOURCES;
      }
    }
  }

  // Allocation is successful. If backstore is not shared inform the client.
  if (!shared) {
    return GRALLOC1_ERROR_NOT_SHARED;
  }

  return status;
}

void BufferManager::CreateSharedHandle(buffer_handle_t inbuffer, const BufferDescriptor &descriptor,
                                       buffer_handle_t *outbuffer) {
  private_handle_t const *input = reinterpret_cast<private_handle_t const *>(inbuffer);

  // Get Buffer attributes or dimension
  unsigned int alignedw = 0, alignedh = 0;
  allocator_->GetAlignedWidthAndHeight(descriptor, &alignedw, &alignedh);

  // create new handle from input reference handle and given descriptor
  int flags = GetHandleFlags(descriptor.GetFormat(), descriptor.GetProducerUsage(),
                             descriptor.GetConsumerUsage());
  int buffer_type = GetBufferType(descriptor.GetFormat());

  // Duplicate the fds
  private_handle_t *out_hnd = new private_handle_t(
      dup(input->fd), input->size, flags, buffer_type, descriptor.GetFormat(), INT(alignedw),
      INT(alignedh), dup(input->fd_metadata), input->offset_metadata, input->base_metadata,
      descriptor.GetWidth(), descriptor.GetHeight(), descriptor.GetProducerUsage(),
      descriptor.GetConsumerUsage());

  *outbuffer = out_hnd;
}

gralloc1_error_t BufferManager::FreeBuffer(private_handle_t const *hnd) {
  if (allocator_->FreeBuffer(reinterpret_cast<void *>(hnd->base), hnd->size, hnd->offset,
                             hnd->fd) != 0) {
    return GRALLOC1_ERROR_BAD_HANDLE;
  }

  unsigned int meta_size = ALIGN((unsigned int)sizeof(MetaData_t), PAGE_SIZE);
  if (allocator_->FreeBuffer(reinterpret_cast<void *>(hnd->base_metadata), meta_size,
                             hnd->offset_metadata, hnd->fd_metadata) != 0) {
    return GRALLOC1_ERROR_BAD_HANDLE;
  }

  // delete handle also
  private_handle_t *handle = const_cast<private_handle_t *>(hnd);
  delete handle;

  return GRALLOC1_ERROR_NONE;
}

gralloc1_error_t BufferManager::MapBuffer(private_handle_t const *handle) {
  private_handle_t *hnd = const_cast<private_handle_t *>(handle);

  hnd->base = 0;
  hnd->base_metadata = 0;
  if (allocator_->MapBuffer(reinterpret_cast<void **>(&hnd->base), hnd->size, hnd->offset,
                            hnd->fd) != 0) {
    return GRALLOC1_ERROR_BAD_HANDLE;
  }

  unsigned int size = ALIGN((unsigned int)sizeof(MetaData_t), PAGE_SIZE);
  if (allocator_->MapBuffer(reinterpret_cast<void **>(&hnd->base_metadata), size,
                            hnd->offset_metadata, hnd->fd_metadata) != 0) {
    return GRALLOC1_ERROR_BAD_HANDLE;
  }

  return GRALLOC1_ERROR_NONE;
}

gralloc1_error_t BufferManager::RetainBuffer(private_handle_t const *hnd) {
  locker_.lock();

  // find if this handle is already in map
  auto it = handles_map_.find(hnd);
  if (it != handles_map_.end()) {
    // It's already in map, Just increment refcnt
    // No need to mmap the memory.
    it->second = it->second + 1;
  } else {
    // not present in the map. mmap and then add entry to map
    if (MapBuffer(hnd) == GRALLOC1_ERROR_NONE) {
      handles_map_.insert(std::pair<private_handle_t const *, int>(hnd, 1));
    }
  }

  locker_.unlock();
  return GRALLOC1_ERROR_NONE;
}

gralloc1_error_t BufferManager::ReleaseBuffer(private_handle_t const *hnd) {
  locker_.lock();

  // find if this handle is already in map
  auto it = handles_map_.find(hnd);
  if (it == handles_map_.end()) {
    // Corrupt handle or map.
    locker_.unlock();
    return GRALLOC1_ERROR_BAD_HANDLE;
  } else {
    it->second = it->second - 1;
  }

  if (!it->second) {
    handles_map_.erase(it);
    FreeBuffer(hnd);
  }

  locker_.unlock();
  return GRALLOC1_ERROR_NONE;
}

gralloc1_error_t BufferManager::LockBuffer(const private_handle_t *hnd,
                                           gralloc1_producer_usage_t prod_usage,
                                           gralloc1_consumer_usage_t cons_usage) {
  gralloc1_error_t err = GRALLOC1_ERROR_NONE;

  // If buffer is not meant for CPU return err
  if (!CpuCanAccess(prod_usage, cons_usage)) {
    return GRALLOC1_ERROR_BAD_VALUE;
  }

  if (hnd->base == 0) {
    // we need to map for real
    locker_.lock();
    err = MapBuffer(hnd);
    locker_.unlock();
  }

  // Invalidate if CPU reads in software and there are non-CPU
  // writers. No need to do this for the metadata buffer as it is
  // only read/written in software.
  if (!err && (hnd->flags & private_handle_t::PRIV_FLAGS_USES_ION) &&
      (hnd->flags & private_handle_t::PRIV_FLAGS_CACHED)) {
    if (allocator_->CleanBuffer(reinterpret_cast<void *>(hnd->base), hnd->size, hnd->offset,
                                hnd->fd, CACHE_INVALIDATE)) {
      return GRALLOC1_ERROR_BAD_HANDLE;
    }
  }

  // Mark the buffer to be flushed after CPU write.
  if (!err && CpuCanWrite(prod_usage)) {
    private_handle_t *handle = const_cast<private_handle_t *>(hnd);
    handle->flags |= private_handle_t::PRIV_FLAGS_NEEDS_FLUSH;
  }

  return err;
}

gralloc1_error_t BufferManager::UnlockBuffer(const private_handle_t *handle) {
  gralloc1_error_t status = GRALLOC1_ERROR_NONE;

  locker_.lock();
  private_handle_t *hnd = const_cast<private_handle_t *>(handle);

  if (hnd->flags & private_handle_t::PRIV_FLAGS_NEEDS_FLUSH) {
    if (allocator_->CleanBuffer(reinterpret_cast<void *>(hnd->base), hnd->size, hnd->offset,
                                hnd->fd, CACHE_CLEAN) != 0) {
      status = GRALLOC1_ERROR_BAD_HANDLE;
    }
    hnd->flags &= ~private_handle_t::PRIV_FLAGS_NEEDS_FLUSH;
  }

  locker_.unlock();
  return status;
}

int BufferManager::GetDataAlignment(int format, gralloc1_producer_usage_t prod_usage,
                                    gralloc1_consumer_usage_t cons_usage) {
  int align = getpagesize();
  if (format == HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED) {
    align = 8192;
  }

  if (prod_usage & GRALLOC1_PRODUCER_USAGE_PROTECTED) {
    if (cons_usage & GRALLOC1_CONSUMER_USAGE_PRIVATE_SECURE_DISPLAY) {
      // The alignment here reflects qsee mmu V7L/V8L requirement
      align = SZ_2M;
    } else {
      align = SECURE_ALIGN;
    }
  }

  return align;
}

int BufferManager::GetHandleFlags(int format, gralloc1_producer_usage_t prod_usage,
                                  gralloc1_consumer_usage_t cons_usage) {
  int flags = 0;
  if (cons_usage & GRALLOC1_CONSUMER_USAGE_PRIVATE_EXTERNAL_ONLY) {
    flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_ONLY;
  }

  if (cons_usage & GRALLOC1_CONSUMER_USAGE_PRIVATE_INTERNAL_ONLY) {
    flags |= private_handle_t::PRIV_FLAGS_INTERNAL_ONLY;
  }

  if (cons_usage & GRALLOC1_CONSUMER_USAGE_VIDEO_ENCODER) {
    flags |= private_handle_t::PRIV_FLAGS_VIDEO_ENCODER;
  }

  if (prod_usage & GRALLOC1_PRODUCER_USAGE_CAMERA) {
    flags |= private_handle_t::PRIV_FLAGS_CAMERA_WRITE;
  }

  if (prod_usage & GRALLOC1_CONSUMER_USAGE_CAMERA) {
    flags |= private_handle_t::PRIV_FLAGS_CAMERA_READ;
  }

  if (cons_usage & GRALLOC1_CONSUMER_USAGE_HWCOMPOSER) {
    flags |= private_handle_t::PRIV_FLAGS_HW_COMPOSER;
  }

  if (prod_usage & GRALLOC1_CONSUMER_USAGE_GPU_TEXTURE) {
    flags |= private_handle_t::PRIV_FLAGS_HW_TEXTURE;
  }

  if (prod_usage & GRALLOC1_CONSUMER_USAGE_PRIVATE_SECURE_DISPLAY) {
    flags |= private_handle_t::PRIV_FLAGS_SECURE_DISPLAY;
  }

  if (allocator_->IsMacroTileEnabled(format, prod_usage, cons_usage)) {
    flags |= private_handle_t::PRIV_FLAGS_TILE_RENDERED;
  }

  if (allocator_->IsUBwcEnabled(format, prod_usage, cons_usage)) {
    flags |= private_handle_t::PRIV_FLAGS_UBWC_ALIGNED;
  }

  if (prod_usage & (GRALLOC1_PRODUCER_USAGE_CPU_READ | GRALLOC1_PRODUCER_USAGE_CPU_WRITE)) {
    flags |= private_handle_t::PRIV_FLAGS_CPU_RENDERED;
  }

  // TODO(user): is this correct???
  if ((cons_usage &
       (GRALLOC1_CONSUMER_USAGE_VIDEO_ENCODER | GRALLOC1_CONSUMER_USAGE_CLIENT_TARGET)) ||
      (prod_usage & (GRALLOC1_PRODUCER_USAGE_CAMERA | GRALLOC1_PRODUCER_USAGE_GPU_RENDER_TARGET))) {
    flags |= private_handle_t::PRIV_FLAGS_NON_CPU_WRITER;
  }

  if (cons_usage & GRALLOC1_CONSUMER_USAGE_HWCOMPOSER) {
    flags |= private_handle_t::PRIV_FLAGS_DISP_CONSUMER;
  }

  if (!allocator_->UseUncached(prod_usage)) {
    flags |= private_handle_t::PRIV_FLAGS_CACHED;
  }

  return flags;
}

int BufferManager::AllocateBuffer(unsigned int size, int aligned_w, int aligned_h, int real_w,
                                  int real_h, int format, int bufferType,
                                  gralloc1_producer_usage_t prod_usage,
                                  gralloc1_consumer_usage_t cons_usage, buffer_handle_t *handle) {
  int err = 0;
  int flags = 0;
  size = ALIGN(size, PAGE_SIZE);
  AllocData data;
  data.align = (unsigned int)GetDataAlignment(format, prod_usage, cons_usage);
  size = ALIGN(size, data.align);
  data.size = size;
  data.handle = (uintptr_t)handle;

  // Allocate memory
  data.uncached = allocator_->UseUncached(prod_usage);
  err = allocator_->AllocateMem(&data, prod_usage, cons_usage);
  if (err) {
    ALOGE("gralloc failed to allocate err=%s", strerror(-err));
    *handle = 0;
    return err;
  }

  // allocate memory for MetaData
  AllocData e_data;
  e_data.size = ALIGN((unsigned int)sizeof(MetaData_t), PAGE_SIZE);
  e_data.handle = data.handle;
  e_data.align = (unsigned int)getpagesize();

  ColorSpace_t colorSpace = ITU_R_601;
  if (prod_usage & GRALLOC1_PRODUCER_USAGE_CAMERA) {
    colorSpace = ITU_R_601_FR;
  }

  err =
      allocator_->AllocateMem(&e_data, GRALLOC1_PRODUCER_USAGE_NONE, GRALLOC1_CONSUMER_USAGE_NONE);
  ALOGE_IF(err, "gralloc failed for e_daata error=%s", strerror(-err));

  flags = GetHandleFlags(format, prod_usage, cons_usage);
  flags |= data.alloc_type;

  // Create handle
  uint64_t eBaseAddr = (uint64_t)(e_data.base) + e_data.offset;
  private_handle_t *hnd = new private_handle_t(data.fd, size, flags, bufferType, format, aligned_w,
                                               aligned_h, e_data.fd, e_data.offset, eBaseAddr,
                                               real_w, real_h, prod_usage, cons_usage);

  hnd->offset = data.offset;
  hnd->base = (uint64_t)(data.base) + data.offset;
  hnd->gpuaddr = 0;

  setMetaData(hnd, UPDATE_COLOR_SPACE, reinterpret_cast<void *>(&colorSpace));

  *handle = hnd;

  // we have just allocated the buffer & mmapped. Add to map
  locker_.lock();
  handles_map_.insert(std::pair<private_handle_t const *, int>(hnd, 1));
  locker_.unlock();

  return err;
}

int BufferManager::GetBufferType(int inputFormat) {
  int buffer_type = BUFFER_TYPE_VIDEO;
  if (IsUncompressedRGBFormat(inputFormat)) {
    // RGB formats
    buffer_type = BUFFER_TYPE_UI;
  }

  return buffer_type;
}

int BufferManager::AllocateBuffer(const BufferDescriptor &descriptor, buffer_handle_t *handle,
                                  unsigned int bufferSize) {
  if (!handle)
    return -EINVAL;

  int format = descriptor.GetFormat();
  gralloc1_producer_usage_t prod_usage = descriptor.GetProducerUsage();
  gralloc1_consumer_usage_t cons_usage = descriptor.GetConsumerUsage();

  // Get implementation defined format
  int gralloc_format = allocator_->GetImplDefinedFormat(prod_usage, cons_usage, format);

  bool use_fb_mem = false;
  if ((cons_usage & GRALLOC1_CONSUMER_USAGE_CLIENT_TARGET) && map_fb_mem_) {
    use_fb_mem = true;
  }

  if ((cons_usage & GRALLOC1_CONSUMER_USAGE_CLIENT_TARGET) && ubwc_for_fb_) {
    prod_usage =
        (gralloc1_producer_usage_t)(prod_usage | GRALLOC1_PRODUCER_USAGE_PRIVATE_ALLOC_UBWC);
  }

  unsigned int size;
  unsigned int alignedw, alignedh;
  int buffer_type = GetBufferType(gralloc_format);
  allocator_->GetBufferSizeAndDimensions(descriptor, &size, &alignedw, &alignedh);

  size = (bufferSize >= size) ? bufferSize : size;

  int err = 0;
  if (use_fb_mem) {
    // TODO(user): TBD Framebuffer specific implementation in a seperate file/class
  } else {
    err = AllocateBuffer(size, INT(alignedw), INT(alignedh), descriptor.GetWidth(),
                         descriptor.GetHeight(), format, buffer_type, descriptor.GetProducerUsage(),
                         descriptor.GetConsumerUsage(), handle);
  }

  if (err < 0) {
    return err;
  }

  return 0;
}

gralloc1_error_t BufferManager::Perform(int operation, va_list args) {
  switch (operation) {
    case GRALLOC_MODULE_PERFORM_CREATE_HANDLE_FROM_BUFFER: {
      int fd = va_arg(args, int);
      unsigned int size = va_arg(args, unsigned int);
      unsigned int offset = va_arg(args, unsigned int);
      void *base = va_arg(args, void *);
      int width = va_arg(args, int);
      int height = va_arg(args, int);
      int format = va_arg(args, int);

      native_handle_t **handle = va_arg(args, native_handle_t **);
      private_handle_t *hnd = reinterpret_cast<private_handle_t *>(
          native_handle_create(private_handle_t::kNumFds, private_handle_t::NumInts()));
      if (hnd) {
        hnd->magic = private_handle_t::kMagic;
        hnd->fd = fd;
        hnd->flags = private_handle_t::PRIV_FLAGS_USES_ION;
        hnd->size = size;
        hnd->offset = offset;
        hnd->base = uint64_t(base) + offset;
        hnd->gpuaddr = 0;
        hnd->width = width;
        hnd->height = height;
        hnd->format = format;
        *handle = reinterpret_cast<native_handle_t *>(hnd);
      }
    } break;

    case GRALLOC_MODULE_PERFORM_GET_STRIDE: {
      int width = va_arg(args, int);
      int format = va_arg(args, int);
      int *stride = va_arg(args, int *);
      unsigned int alignedw = 0, alignedh = 0;
      BufferDescriptor descriptor(width, width, format);
      allocator_->GetAlignedWidthAndHeight(descriptor, &alignedw, &alignedh);
      *stride = INT(alignedw);
    } break;

    case GRALLOC_MODULE_PERFORM_GET_CUSTOM_STRIDE_FROM_HANDLE: {
      private_handle_t *hnd = va_arg(args, private_handle_t *);
      int *stride = va_arg(args, int *);
      if (private_handle_t::validate(hnd) != 0) {
        return GRALLOC1_ERROR_BAD_HANDLE;
      }

      MetaData_t *metadata = reinterpret_cast<MetaData_t *>(hnd->base_metadata);
      if (metadata && metadata->operation & UPDATE_BUFFER_GEOMETRY) {
        *stride = metadata->bufferDim.sliceWidth;
      } else {
        *stride = hnd->width;
      }
    } break;

    // TODO(user) : this alone should be sufficient, ask gfx to get rid of above
    case GRALLOC_MODULE_PERFORM_GET_CUSTOM_STRIDE_AND_HEIGHT_FROM_HANDLE: {
      private_handle_t *hnd = va_arg(args, private_handle_t *);
      int *stride = va_arg(args, int *);
      int *height = va_arg(args, int *);
      if (private_handle_t::validate(hnd) != 0) {
        return GRALLOC1_ERROR_BAD_HANDLE;
      }

      MetaData_t *metadata = reinterpret_cast<MetaData_t *>(hnd->base_metadata);
      if (metadata && metadata->operation & UPDATE_BUFFER_GEOMETRY) {
        *stride = metadata->bufferDim.sliceWidth;
        *height = metadata->bufferDim.sliceHeight;
      } else {
        *stride = hnd->width;
        *height = hnd->height;
      }
    } break;

    case GRALLOC_MODULE_PERFORM_GET_ATTRIBUTES: {
      // TODO(user): Usage is split now. take care of it from Gfx client.
      // see if we can directly expect descriptor from gfx client.
      int width = va_arg(args, int);
      int height = va_arg(args, int);
      int format = va_arg(args, int);
      uint64_t producer_usage = va_arg(args, uint64_t);
      uint64_t consumer_usage = va_arg(args, uint64_t);
      gralloc1_producer_usage_t prod_usage = static_cast<gralloc1_producer_usage_t>(producer_usage);
      gralloc1_consumer_usage_t cons_usage = static_cast<gralloc1_consumer_usage_t>(consumer_usage);

      int *aligned_width = va_arg(args, int *);
      int *aligned_height = va_arg(args, int *);
      int *tile_enabled = va_arg(args, int *);
      unsigned int alignedw, alignedh;
      BufferDescriptor descriptor(width, height, format, prod_usage, cons_usage);
      *tile_enabled = allocator_->IsUBwcEnabled(format, prod_usage, cons_usage) ||
                      allocator_->IsMacroTileEnabled(format, prod_usage, cons_usage);

      allocator_->GetAlignedWidthAndHeight(descriptor, &alignedw, &alignedh);
      *aligned_width = INT(alignedw);
      *aligned_height = INT(alignedh);
    } break;

    case GRALLOC_MODULE_PERFORM_GET_COLOR_SPACE_FROM_HANDLE: {
      private_handle_t *hnd = va_arg(args, private_handle_t *);
      int *color_space = va_arg(args, int *);
      if (private_handle_t::validate(hnd) != 0) {
        return GRALLOC1_ERROR_BAD_HANDLE;
      }
      MetaData_t *metadata = reinterpret_cast<MetaData_t *>(hnd->base_metadata);
      if (metadata && metadata->operation & UPDATE_COLOR_SPACE) {
        *color_space = metadata->colorSpace;
      }
    } break;
    case GRALLOC_MODULE_PERFORM_GET_YUV_PLANE_INFO: {
      private_handle_t *hnd = va_arg(args, private_handle_t *);
      android_ycbcr *ycbcr = va_arg(args, struct android_ycbcr *);
      if (private_handle_t::validate(hnd) != 0) {
        return GRALLOC1_ERROR_BAD_HANDLE;
      }
      if (allocator_->GetYUVPlaneInfo(hnd, ycbcr)) {
        return GRALLOC1_ERROR_UNDEFINED;
      }
    } break;

    case GRALLOC_MODULE_PERFORM_GET_MAP_SECURE_BUFFER_INFO: {
      private_handle_t *hnd = va_arg(args, private_handle_t *);
      int *map_secure_buffer = va_arg(args, int *);
      if (private_handle_t::validate(hnd) != 0) {
        return GRALLOC1_ERROR_BAD_HANDLE;
      }
      MetaData_t *metadata = reinterpret_cast<MetaData_t *>(hnd->base_metadata);
      if (metadata && metadata->operation & MAP_SECURE_BUFFER) {
        *map_secure_buffer = metadata->mapSecureBuffer;
      } else {
        *map_secure_buffer = 0;
      }
    } break;

    case GRALLOC_MODULE_PERFORM_GET_UBWC_FLAG: {
      private_handle_t *hnd = va_arg(args, private_handle_t *);
      int *flag = va_arg(args, int *);
      if (private_handle_t::validate(hnd) != 0) {
        return GRALLOC1_ERROR_BAD_HANDLE;
      }
      *flag = hnd->flags &private_handle_t::PRIV_FLAGS_UBWC_ALIGNED;
    } break;

    case GRALLOC_MODULE_PERFORM_GET_RGB_DATA_ADDRESS: {
      private_handle_t *hnd = va_arg(args, private_handle_t *);
      void **rgb_data = va_arg(args, void **);
      if (private_handle_t::validate(hnd) != 0) {
        return GRALLOC1_ERROR_BAD_HANDLE;
      }
      if (allocator_->GetRgbDataAddress(hnd, rgb_data)) {
        return GRALLOC1_ERROR_UNDEFINED;
      }
    } break;

    default:
      break;
  }

  return GRALLOC1_ERROR_NONE;
}

}  //  namespace gralloc1