gralloc/QtiAllocator.cpp

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#define DEBUG 0
#include "QtiAllocator.h"

#include <cutils/properties.h>
#include <log/log.h>
#include <vendor/qti/hardware/display/mapper/3.0/IQtiMapper.h>
#include <vendor/qti/hardware/display/mapper/4.0/IQtiMapper.h>

#include <vector>

#include "QtiMapper.h"
#include "QtiMapper4.h"
#include "gr_utils.h"

static void get_properties(gralloc::GrallocProperties *props) {
  char property[PROPERTY_VALUE_MAX];
  property_get("vendor.gralloc.use_system_heap_for_sensors", property, "1");
  if (!(strncmp(property, "0", PROPERTY_VALUE_MAX))) {
    props->use_system_heap_for_sensors = false;
  }

  property_get("vendor.gralloc.disable_ubwc", property, "0");
  if (!(strncmp(property, "1", PROPERTY_VALUE_MAX)) ||
      !(strncmp(property, "true", PROPERTY_VALUE_MAX))) {
    props->ubwc_disable = true;
  }

  property_get("vendor.gralloc.disable_ahardware_buffer", property, "0");
  if (!(strncmp(property, "1", PROPERTY_VALUE_MAX)) ||
      !(strncmp(property, "true", PROPERTY_VALUE_MAX))) {
    props->ahardware_buffer_disable = true;
  }
}

namespace vendor {
namespace qti {
namespace hardware {
namespace display {
namespace allocator {
namespace V3_0 {
namespace implementation {

using android::hardware::hidl_handle;
using gralloc::BufferDescriptor;
using IMapper_3_0_Error = android::hardware::graphics::mapper::V3_0::Error;
using gralloc::Error;

QtiAllocator::QtiAllocator() {
  gralloc::GrallocProperties properties;
  get_properties(&properties);
  buf_mgr_ = BufferManager::GetInstance();
  buf_mgr_->SetGrallocDebugProperties(properties);
}

// Methods from ::android::hardware::graphics::allocator::V2_0::IAllocator follow.
Return<void> QtiAllocator::dumpDebugInfo(dumpDebugInfo_cb hidl_cb) {
  std::ostringstream os;
  buf_mgr_->Dump(&os);
  hidl_string reply;
  reply.setToExternal(os.str().c_str(), os.str().length());
  hidl_cb(reply);
  return Void();
}

Return<void> QtiAllocator::allocate(const hidl_vec<uint32_t> &descriptor, uint32_t count,
                                    allocate_cb hidl_cb) {
  ALOGD_IF(DEBUG, "Allocating buffers count: %d", count);
  gralloc::BufferDescriptor desc;

  auto err = ::vendor::qti::hardware::display::mapper::V3_0::implementation::QtiMapper::Decode(
      descriptor, &desc);
  if (err != Error::NONE) {
    hidl_cb(static_cast<IMapper_3_0_Error>(err), 0, hidl_vec<hidl_handle>());
    return Void();
  }

  std::vector<hidl_handle> buffers;
  buffers.reserve(count);
  for (uint32_t i = 0; i < count; i++) {
    buffer_handle_t buffer;
    ALOGD_IF(DEBUG, "buffer: %p", &buffer);
    err = buf_mgr_->AllocateBuffer(desc, &buffer);
    if (err != Error::NONE) {
      break;
    }
    buffers.emplace_back(hidl_handle(buffer));
  }

  uint32_t stride = 0;
  hidl_vec<hidl_handle> hidl_buffers;
  if (err == Error::NONE && buffers.size() > 0) {
    stride = static_cast<uint32_t>(PRIV_HANDLE_CONST(buffers[0].getNativeHandle())->width);
    hidl_buffers.setToExternal(buffers.data(), buffers.size());
  }
  hidl_cb(static_cast<IMapper_3_0_Error>(err), stride, hidl_buffers);

  for (const auto &b : buffers) {
    buf_mgr_->ReleaseBuffer(PRIV_HANDLE_CONST(b.getNativeHandle()));
  }

  return Void();
}

}  // namespace implementation
}  // namespace V3_0
}  // namespace allocator
}  // namespace display
}  // namespace hardware
}  // namespace qti
}  // namespace vendor

namespace vendor {
namespace qti {
namespace hardware {
namespace display {
namespace allocator {
namespace V4_0 {
namespace implementation {

using android::hardware::hidl_handle;
using gralloc::BufferDescriptor;
using IMapper_4_0_Error = android::hardware::graphics::mapper::V4_0::Error;
using gralloc::Error;

QtiAllocator::QtiAllocator() {
  gralloc::GrallocProperties properties;
  get_properties(&properties);
  buf_mgr_ = BufferManager::GetInstance();
  buf_mgr_->SetGrallocDebugProperties(properties);
}

Return<void> QtiAllocator::allocate(const hidl_vec<uint8_t> &descriptor, uint32_t count,
                                    allocate_cb hidl_cb) {
  ALOGD_IF(DEBUG, "Allocating buffers count: %d", count);
  gralloc::BufferDescriptor desc;

  auto err = ::vendor::qti::hardware::display::mapper::V4_0::implementation::QtiMapper::Decode(
      descriptor, &desc);
  if (err != Error::NONE) {
    hidl_cb(static_cast<IMapper_4_0_Error>(err), 0, hidl_vec<hidl_handle>());
    return Void();
  }

  std::vector<hidl_handle> buffers;
  buffers.reserve(count);
  for (uint32_t i = 0; i < count; i++) {
    buffer_handle_t buffer;
    ALOGD_IF(DEBUG, "buffer: %p", &buffer);
    err = buf_mgr_->AllocateBuffer(desc, &buffer);
    if (err != Error::NONE) {
      break;
    }
    buffers.emplace_back(hidl_handle(buffer));
  }

  uint32_t stride = 0;
  hidl_vec<hidl_handle> hidl_buffers;
  if (err == Error::NONE && buffers.size() > 0) {
    stride = static_cast<uint32_t>(PRIV_HANDLE_CONST(buffers[0].getNativeHandle())->width);
    hidl_buffers.setToExternal(buffers.data(), buffers.size());
  }
  hidl_cb(static_cast<IMapper_4_0_Error>(err), stride, hidl_buffers);

  for (const auto &b : buffers) {
    buf_mgr_->ReleaseBuffer(PRIV_HANDLE_CONST(b.getNativeHandle()));
  }

  return Void();
}

}  // namespace implementation
}  // namespace V4_0
}  // namespace allocator
}  // namespace display
}  // namespace hardware
}  // namespace qti
}  // namespace vendor