kc3-lang/angle/src/libANGLE/renderer/QueryImpl.h

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• Hash : bccaaffd
  Author :
  Date : 2020-11-27T16:33:09
  

  Vulkan: Use XFB queries with the XFB extension.
  
  This will enable accurate XFB primitive counts when using tessellation
  and geometry shaders. Adds new vk::QueryResult and gl::QueryTypeMap
  helper classes.
  
  Based on contributions by Mohan Maiya (m.maiya@samsung.com).
  
  Bug: angleproject:3572
  Change-Id: Ie3f496deda887c13bb4ad7ab430e31d615849bfd
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2564002
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Mohan Maiya <m.maiya@samsung.com>
  

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• src/libANGLE/renderer/QueryImpl.h

• //
  // Copyright 2013 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.
  //
  
  // QueryImpl.h: Defines the abstract rx::QueryImpl class.
  
  #ifndef LIBANGLE_RENDERER_QUERYIMPL_H_
  #define LIBANGLE_RENDERER_QUERYIMPL_H_
  
  #include "common/PackedEnums.h"
  #include "common/angleutils.h"
  #include "libANGLE/Error.h"
  
  namespace gl
  {
  class Context;
  }  // namespace gl
  
  namespace rx
  {
  class QueryImpl : angle::NonCopyable
  {
    public:
      explicit QueryImpl(gl::QueryType type) : mType(type) {}
      virtual ~QueryImpl() {}
  
      virtual void onDestroy(const gl::Context *context);
  
      virtual angle::Result begin(const gl::Context *context)                              = 0;
      virtual angle::Result end(const gl::Context *context)                                = 0;
      virtual angle::Result queryCounter(const gl::Context *context)                       = 0;
      virtual angle::Result getResult(const gl::Context *context, GLint *params)           = 0;
      virtual angle::Result getResult(const gl::Context *context, GLuint *params)          = 0;
      virtual angle::Result getResult(const gl::Context *context, GLint64 *params)         = 0;
      virtual angle::Result getResult(const gl::Context *context, GLuint64 *params)        = 0;
      virtual angle::Result isResultAvailable(const gl::Context *context, bool *available) = 0;
  
      gl::QueryType getType() const { return mType; }
  
      // Convenience functions
      bool isOcclusionQuery() const { return isAnySamplesQuery() || isAnySamplesConservativeQuery(); }
      bool isAnySamplesQuery() const { return mType == gl::QueryType::AnySamples; }
      bool isAnySamplesConservativeQuery() const
      {
          return mType == gl::QueryType::AnySamplesConservative;
      }
      bool isTransformFeedbackQuery() const
      {
          return mType == gl::QueryType::TransformFeedbackPrimitivesWritten;
      }
  
    protected:
      const gl::QueryType mType;
  };
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_QUERYIMPL_H_
  

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