kc3-lang/angle/src/libANGLE/IndexRangeCache.h

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• Hash : 3edfe034
  Author :
  Date : 2015-09-04T16:38:24
  

  Support primitive restart in RendererGL.
  
  Store index ranges in a new struct that tracks how many real indices were
  seen.  Update index caching to key on primitive restart being enabled and
  update index counting functions to skip primitive restart indicies when
  needed.
  
  Passes dEQP-GLES3.functional.primitive_restart.*
  
  Change-Id: Id1e25a5adcdcd4e998836e8ff6679c64be4c3066
  Reviewed-on: https://chromium-review.googlesource.com/297770
  Tryjob-Request: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/IndexRangeCache.h

• //
  // Copyright (c) 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.
  //
  
  // IndexRangeCache.h: Defines the gl::IndexRangeCache class which stores information about
  // ranges of indices.
  
  #ifndef LIBANGLE_INDEXRANGECACHE_H_
  #define LIBANGLE_INDEXRANGECACHE_H_
  
  #include "common/angleutils.h"
  #include "common/mathutil.h"
  
  #include "angle_gl.h"
  
  #include <map>
  
  namespace gl
  {
  
  class IndexRangeCache
  {
    public:
      void addRange(GLenum type,
                    size_t offset,
                    size_t count,
                    bool primitiveRestartEnabled,
                    const IndexRange &range);
      bool findRange(GLenum type,
                     size_t offset,
                     size_t count,
                     bool primitiveRestartEnabled,
                     IndexRange *outRange) const;
  
      void invalidateRange(size_t offset, size_t size);
      void clear();
  
    private:
      struct IndexRangeKey
      {
          IndexRangeKey();
          IndexRangeKey(GLenum type, size_t offset, size_t count, bool primitiveRestart);
  
          bool operator<(const IndexRangeKey &rhs) const;
  
          GLenum type;
          size_t offset;
          size_t count;
          bool primitiveRestartEnabled;
      };
  
      typedef std::map<IndexRangeKey, IndexRange> IndexRangeMap;
      IndexRangeMap mIndexRangeCache;
  };
  
  }
  
  #endif // LIBANGLE_INDEXRANGECACHE_H_
  

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