kc3-lang/angle/src/libANGLE/renderer/vulkan/QueryVk.h

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• Hash : cdf280c0
  Author :
  Date : 2020-11-13T10:14:58
  

  Vulkan: Fix serial handling for queries
  
  Previous serial mechanism wasn't reliable. QueryHelper is now a
  vk::Resource and uses the vk::Resource lifecycle.
  Also added some utility methods to QueryVk to deal with stashed queries.
  Any question we want to ask about mQueryHelper we want to ask about the
  stashed queries as well.
  
  Bug: b/169055809
  Bug: b/169788986
  Bug: b/170312581
  Change-Id: Ia34a7a433e61a2543cfb09491ebab55b054a26c9
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2537718
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Tim Van Patten <timvp@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com>
  

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• src/libANGLE/renderer/vulkan/QueryVk.h

• //
  // Copyright 2016 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.
  //
  // QueryVk.h:
  //    Defines the class interface for QueryVk, implementing QueryImpl.
  //
  
  #ifndef LIBANGLE_RENDERER_VULKAN_QUERYVK_H_
  #define LIBANGLE_RENDERER_VULKAN_QUERYVK_H_
  
  #include "libANGLE/renderer/QueryImpl.h"
  #include "libANGLE/renderer/vulkan/vk_helpers.h"
  
  namespace rx
  {
  class TransformFeedbackVk;
  
  class QueryVk : public QueryImpl
  {
    public:
      QueryVk(gl::QueryType type);
      ~QueryVk() override;
  
      void onDestroy(const gl::Context *context) override;
  
      angle::Result begin(const gl::Context *context) override;
      angle::Result end(const gl::Context *context) override;
      angle::Result queryCounter(const gl::Context *context) override;
      angle::Result getResult(const gl::Context *context, GLint *params) override;
      angle::Result getResult(const gl::Context *context, GLuint *params) override;
      angle::Result getResult(const gl::Context *context, GLint64 *params) override;
      angle::Result getResult(const gl::Context *context, GLuint64 *params) override;
      angle::Result isResultAvailable(const gl::Context *context, bool *available) override;
  
      void onTransformFeedbackEnd(GLsizeiptr primitivesDrawn);
      vk::QueryHelper *getQueryHelper() { return &mQueryHelper; }
      angle::Result stashQueryHelper(ContextVk *contextVk);
      angle::Result retrieveStashedQueryResult(ContextVk *contextVk, uint64_t *result);
  
    private:
      angle::Result getResult(const gl::Context *context, bool wait);
  
      bool isUsedInRecordedCommands() const;
      bool isCurrentlyInUse(Serial lastCompletedSerial) const;
      angle::Result finishRunningCommands(ContextVk *contextVk);
  
      // Used for AnySamples, AnySamplesConservative, Timestamp and TimeElapsed (end).
      vk::QueryHelper mQueryHelper;
      // Used for occlusion query that we may end up with multiple outstanding query helper objects.
      std::vector<vk::QueryHelper> mStashedQueryHelpers;
      // An additional query used for TimeElapsed (begin), as it is implemented using Timestamp.
      vk::QueryHelper mQueryHelperTimeElapsedBegin;
      // Used with TransformFeedbackPrimitivesWritten when transform feedback is emulated.
      size_t mTransformFeedbackPrimitivesDrawn;
  
      uint64_t mCachedResult;
      bool mCachedResultValid;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_VULKAN_QUERYVK_H_
  

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