kc3-lang/angle/src/tests/test_utils/VulkanExternalHelper.h

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• Hash : 3b2c6bfd
  Author :
  Date : 2019-04-16T17:19:50
  

  Vulkan: Implement glImportMemoryFdEXT
  
  Allow importing opaque file descriptors into memory objects on linux.
  Currently this just holds onto the file descriptor rather than calling
  vkAllocateMemory immediately. The latter will be easier once we have
  support for suballocation (anglebug.com/2162).
  
  Bug: angleproject:3289
  
  Change-Id: Ia80ce07b2a9ec95b9063feb9bfeb24ffe77fa40e
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1552028
  Commit-Queue: Michael Spang <spang@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• src/tests/test_utils/VulkanExternalHelper.h

• //
  // Copyright 2019 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.
  //
  // VulkanExternalHelper.h : Helper for allocating & managing vulkan external objects.
  
  #ifndef ANGLE_TESTS_TESTUTILS_VULKANEXTERNALHELPER_H_
  #define ANGLE_TESTS_TESTUTILS_VULKANEXTERNALHELPER_H_
  
  #include <vulkan/vulkan.h>
  
  namespace angle
  {
  
  class VulkanExternalHelper
  {
    public:
      VulkanExternalHelper();
      ~VulkanExternalHelper();
  
      void initialize();
  
      VkInstance getInstance() const { return mInstance; }
      VkPhysicalDevice getPhysicalDevice() const { return mPhysicalDevice; }
      VkDevice getDevice() const { return mDevice; }
      VkQueue getGraphicsQueue() const { return mGraphicsQueue; }
  
      // VK_KHR_external_memory_fd
      bool canCreateImageOpaqueFd(VkFormat format, VkImageType type, VkImageTiling tiling) const;
      VkResult createImage2DOpaqueFd(VkFormat format,
                                     VkExtent3D extent,
                                     VkImage *imageOut,
                                     VkDeviceMemory *deviceMemoryOut,
                                     VkDeviceSize *deviceMemorySizeOut);
      VkResult exportMemoryOpaqueFd(VkDeviceMemory deviceMemory, int *fd);
  
    private:
      VkInstance mInstance             = VK_NULL_HANDLE;
      VkPhysicalDevice mPhysicalDevice = VK_NULL_HANDLE;
      VkDevice mDevice                 = VK_NULL_HANDLE;
      VkQueue mGraphicsQueue           = VK_NULL_HANDLE;
  
      VkPhysicalDeviceMemoryProperties mMemoryProperties = {};
  
      uint32_t mGraphicsQueueFamilyIndex = UINT32_MAX;
  
      bool mHasExternalMemoryFd    = false;
      bool mHasExternalSemaphoreFd = false;
      PFN_vkGetPhysicalDeviceImageFormatProperties2 vkGetPhysicalDeviceImageFormatProperties2 =
          nullptr;
      PFN_vkGetMemoryFdKHR vkGetMemoryFdKHR = nullptr;
  };
  
  }  // namespace angle
  
  #endif  // ANGLE_TESTS_TESTUTILS_VULKANEXTERNALHELPER_H_
  

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