kc3-lang/angle/src/libANGLE/renderer/vulkan/android/vk_android_utils.cpp

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• Hash : f197ebac
  Author :
  Date : 2020-11-16T15:16:56
  

  Vulkan: Add EXT_external_buffer support
  
  Addition of buffer support for external memory
  Also adds new end2end tests for these usecases
    * SubData update
    * map/unmap buffer
    * dispatch compute with external buffer
  
  Bug: angleproject:5073
  Test: ExternalBufferTestES31.*Vulkan
  Change-Id: Ib3cccaca77b76830effe49d3731782552e7424ec
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2525105
  Commit-Queue: Mohan Maiya <m.maiya@samsung.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/libANGLE/renderer/vulkan/android/vk_android_utils.cpp

• //
  // Copyright 2020 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // vk_android_utils.cpp: Vulkan utilities for using the Android platform
  
  #include "libANGLE/renderer/vulkan/android/vk_android_utils.h"
  
  #include "common/android_util.h"
  #include "libANGLE/renderer/vulkan/ContextVk.h"
  #include "libANGLE/renderer/vulkan/vk_utils.h"
  
  #if defined(ANGLE_PLATFORM_ANDROID) && __ANDROID_API__ >= 26
  #    define ANGLE_AHARDWARE_BUFFER_SUPPORT
  // NDK header file for access to Android Hardware Buffers
  #    include <android/hardware_buffer.h>
  #endif
  
  namespace rx
  {
  namespace vk
  {
  angle::Result GetClientBufferMemoryRequirements(ContextVk *contextVk,
                                                  const AHardwareBuffer *hardwareBuffer,
                                                  VkMemoryRequirements &memRequirements)
  {
  #if defined(ANGLE_AHARDWARE_BUFFER_SUPPORT)
  
      // Get Android Buffer Properties
      VkAndroidHardwareBufferFormatPropertiesANDROID bufferFormatProperties = {};
      bufferFormatProperties.sType =
          VK_STRUCTURE_TYPE_ANDROID_HARDWARE_BUFFER_FORMAT_PROPERTIES_ANDROID;
  
      VkAndroidHardwareBufferPropertiesANDROID bufferProperties = {};
      bufferProperties.sType = VK_STRUCTURE_TYPE_ANDROID_HARDWARE_BUFFER_PROPERTIES_ANDROID;
      bufferProperties.pNext = &bufferFormatProperties;
  
      VkDevice device = contextVk->getRenderer()->getDevice();
      ANGLE_VK_TRY(contextVk, vkGetAndroidHardwareBufferPropertiesANDROID(device, hardwareBuffer,
                                                                          &bufferProperties));
  
      memRequirements.size           = bufferProperties.allocationSize;
      memRequirements.alignment      = 0;
      memRequirements.memoryTypeBits = bufferProperties.memoryTypeBits;
  
      return angle::Result::Continue;
  #else
      ANGLE_VK_UNREACHABLE(contextVk);
      return angle::Result::Stop;
  #endif  // ANGLE_AHARDWARE_BUFFER_SUPPORT
  }
  
  angle::Result InitAndroidExternalMemory(ContextVk *contextVk,
                                          EGLClientBuffer clientBuffer,
                                          VkMemoryPropertyFlags memoryProperties,
                                          Buffer *buffer,
                                          VkMemoryPropertyFlags *memoryPropertyFlagsOut,
                                          DeviceMemory *deviceMemoryOut)
  {
  #if defined(ANGLE_AHARDWARE_BUFFER_SUPPORT)
      struct AHardwareBuffer *hardwareBuffer =
          angle::android::ClientBufferToAHardwareBuffer(clientBuffer);
  
      VkMemoryRequirements externalMemoryRequirements = {};
      ANGLE_TRY(
          GetClientBufferMemoryRequirements(contextVk, hardwareBuffer, externalMemoryRequirements));
  
      // Import Vulkan DeviceMemory from Android Hardware Buffer.
      VkImportAndroidHardwareBufferInfoANDROID importHardwareBufferInfo = {};
      importHardwareBufferInfo.sType  = VK_STRUCTURE_TYPE_IMPORT_ANDROID_HARDWARE_BUFFER_INFO_ANDROID;
      importHardwareBufferInfo.buffer = hardwareBuffer;
  
      ANGLE_TRY(AllocateBufferMemoryWithRequirements(
          contextVk, memoryProperties, externalMemoryRequirements, &importHardwareBufferInfo, buffer,
          memoryPropertyFlagsOut, deviceMemoryOut));
  
      AHardwareBuffer_acquire(hardwareBuffer);
  
      return angle::Result::Continue;
  #else
      ANGLE_VK_UNREACHABLE(contextVk);
      return angle::Result::Stop;
  #endif  // ANGLE_AHARDWARE_BUFFER_SUPPORT
  }
  
  void ReleaseAndroidExternalMemory(EGLClientBuffer clientBuffer)
  {
  #if defined(ANGLE_AHARDWARE_BUFFER_SUPPORT)
      struct AHardwareBuffer *hardwareBuffer =
          angle::android::ClientBufferToAHardwareBuffer(clientBuffer);
      AHardwareBuffer_release(hardwareBuffer);
  #endif  // ANGLE_AHARDWARE_BUFFER_SUPPORT
  }
  }  // namespace vk
  }  // namespace rx
  

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