kc3-lang/angle/src/libANGLE/renderer/vulkan/ResourceVk.cpp

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• Hash : 57d59e83
  Author :
  Date : 2021-09-07T17:41:11
  

  Vulkan: Add ResourceWrite to track Read and Write Access
  
  vk::Resource currently only tracks accesses in general, not which type
  of access is being performed. This CL adds the new class ResourceWrite
  to track whether the access is a Read or Read/Write access and when
  the access completes.
  
  This allows a follow-on CL to know when a buffer is being written to by
  the GPU or if the GPU is only reading from a buffer. Tracking write
  accesses to buffers is required when attempting to "Ghost" (duplicate)
  GPU-read-only buffers to prevent breaking the render pass when the CPU
  maps the buffer memory.
  
  Bug: angleproject:5971
  Test: ComputeShaderTest.ImageBufferMapWrite
  Change-Id: I965e3e75730719ccce77334744ae4feae33c6101
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3146319
  Commit-Queue: Tim Van Patten <timvp@google.com>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Charlie Lao <cclao@google.com>
  

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• src/libANGLE/renderer/vulkan/ResourceVk.cpp

• //
  // Copyright 2017 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.
  //
  // Resource:
  //    Resource lifetime tracking in the Vulkan back-end.
  //
  
  #include "libANGLE/renderer/vulkan/ResourceVk.h"
  
  #include "libANGLE/renderer/vulkan/ContextVk.h"
  
  namespace rx
  {
  namespace vk
  {
  namespace
  {
  angle::Result FinishRunningCommands(ContextVk *contextVk, Serial serial)
  {
      return contextVk->finishToSerial(serial);
  }
  
  template <typename T>
  angle::Result WaitForIdle(ContextVk *contextVk, const char *debugMessage, T *resource)
  {
      // If there are pending commands for the resource, flush them.
      if (resource->usedInRecordedCommands())
      {
          ANGLE_TRY(contextVk->flushImpl(nullptr));
      }
  
      // Make sure the driver is done with the resource.
      if (resource->usedInRunningCommands(contextVk->getLastCompletedQueueSerial()))
      {
          if (debugMessage)
          {
              ANGLE_PERF_WARNING(contextVk->getDebug(), GL_DEBUG_SEVERITY_HIGH, debugMessage);
          }
          ANGLE_TRY(resource->finishRunningCommands(contextVk));
      }
  
      ASSERT(!resource->isCurrentlyInUse(contextVk->getLastCompletedQueueSerial()));
  
      return angle::Result::Continue;
  }
  }  // namespace
  
  // Resource implementation.
  Resource::Resource()
  {
      mUse.init();
  }
  
  Resource::Resource(Resource &&other) : Resource()
  {
      mUse = std::move(other.mUse);
  }
  
  Resource::~Resource()
  {
      mUse.release();
  }
  
  angle::Result Resource::finishRunningCommands(ContextVk *contextVk)
  {
      return FinishRunningCommands(contextVk, mUse.getSerial());
  }
  
  angle::Result Resource::waitForIdle(ContextVk *contextVk, const char *debugMessage)
  {
      return WaitForIdle(contextVk, debugMessage, this);
  }
  
  // Resource implementation.
  ReadWriteResource::ReadWriteResource()
  {
      mReadOnlyUse.init();
      mReadWriteUse.init();
  }
  
  ReadWriteResource::ReadWriteResource(ReadWriteResource &&other) : ReadWriteResource()
  {
      mReadOnlyUse  = std::move(other.mReadOnlyUse);
      mReadWriteUse = std::move(other.mReadWriteUse);
  }
  
  ReadWriteResource::~ReadWriteResource()
  {
      mReadOnlyUse.release();
      mReadWriteUse.release();
  }
  
  angle::Result ReadWriteResource::finishRunningCommands(ContextVk *contextVk)
  {
      return FinishRunningCommands(contextVk, mReadOnlyUse.getSerial());
  }
  
  angle::Result ReadWriteResource::waitForIdle(ContextVk *contextVk, const char *debugMessage)
  {
      return WaitForIdle(contextVk, debugMessage, this);
  }
  
  // SharedGarbage implementation.
  SharedGarbage::SharedGarbage() = default;
  
  SharedGarbage::SharedGarbage(SharedGarbage &&other)
  {
      *this = std::move(other);
  }
  
  SharedGarbage::SharedGarbage(SharedResourceUse &&use, std::vector<GarbageObject> &&garbage)
      : mLifetime(std::move(use)), mGarbage(std::move(garbage))
  {}
  
  SharedGarbage::~SharedGarbage() = default;
  
  SharedGarbage &SharedGarbage::operator=(SharedGarbage &&rhs)
  {
      std::swap(mLifetime, rhs.mLifetime);
      std::swap(mGarbage, rhs.mGarbage);
      return *this;
  }
  
  bool SharedGarbage::destroyIfComplete(RendererVk *renderer, Serial completedSerial)
  {
      if (mLifetime.isCurrentlyInUse(completedSerial))
          return false;
  
      for (GarbageObject &object : mGarbage)
      {
          object.destroy(renderer);
      }
  
      mLifetime.release();
  
      return true;
  }
  
  // ResourceUseList implementation.
  ResourceUseList::ResourceUseList()
  {
      constexpr size_t kDefaultResourceUseCount = 4096;
      mResourceUses.reserve(kDefaultResourceUseCount);
  }
  
  ResourceUseList::ResourceUseList(ResourceUseList &&other)
  {
      *this = std::move(other);
  }
  
  ResourceUseList::~ResourceUseList()
  {
      ASSERT(mResourceUses.empty());
  }
  
  ResourceUseList &ResourceUseList::operator=(ResourceUseList &&rhs)
  {
      std::swap(mResourceUses, rhs.mResourceUses);
      return *this;
  }
  
  void ResourceUseList::releaseResourceUses()
  {
      for (SharedResourceUse &use : mResourceUses)
      {
          use.release();
      }
  
      mResourceUses.clear();
  }
  
  void ResourceUseList::releaseResourceUsesAndUpdateSerials(Serial serial)
  {
      for (SharedResourceUse &use : mResourceUses)
      {
          use.releaseAndUpdateSerial(serial);
      }
  
      mResourceUses.clear();
  }
  }  // namespace vk
  }  // namespace rx
  

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