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

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• Hash : 9d737966
  Author :
  Date : 2019-08-14T12:25:12
  

  Standardize copyright notices to project style
  
  For all "ANGLE Project" copyrights, standardize to the format specified
  by the style guide. Changes:
  - "Copyright (c)" and "Copyright(c)" changed to just "Copyright".
  - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1").
  - Fixed a small number of files that had no copyright date using the
    initial commit year from the version control history.
  - Fixed one instance of copyright being "The ANGLE Project" rather than
    "The ANGLE Project Authors"
  
  These changes are applied both to the copyright of source file, and
  where applicable to copyright statements that are generated by
  templates.
  
  BUG=angleproject:3811
  
  Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/MemoryProgramCache.h

• //
  // 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.
  //
  // MemoryProgramCache: Stores compiled and linked programs in memory so they don't
  //   always have to be re-compiled. Can be used in conjunction with the platform
  //   layer to warm up the cache from disk.
  
  #ifndef LIBANGLE_MEMORY_PROGRAM_CACHE_H_
  #define LIBANGLE_MEMORY_PROGRAM_CACHE_H_
  
  #include <array>
  
  #include "common/MemoryBuffer.h"
  #include "libANGLE/BlobCache.h"
  #include "libANGLE/Error.h"
  
  namespace gl
  {
  class Context;
  class Program;
  class ProgramState;
  
  class MemoryProgramCache final : angle::NonCopyable
  {
    public:
      explicit MemoryProgramCache(egl::BlobCache &blobCache);
      ~MemoryProgramCache();
  
      static void ComputeHash(const Context *context,
                              const Program *program,
                              egl::BlobCache::Key *hashOut);
  
      // Check if the cache contains a binary matching the specified program.
      bool get(const Context *context,
               const egl::BlobCache::Key &programHash,
               egl::BlobCache::Value *programOut);
  
      // For querying the contents of the cache.
      bool getAt(size_t index,
                 const egl::BlobCache::Key **hashOut,
                 egl::BlobCache::Value *programOut);
  
      // Evict a program from the binary cache.
      void remove(const egl::BlobCache::Key &programHash);
  
      // Helper method that serializes a program.
      void putProgram(const egl::BlobCache::Key &programHash,
                      const Context *context,
                      const Program *program);
  
      // Same as putProgram but computes the hash.
      void updateProgram(const Context *context, const Program *program);
  
      // Store a binary directly.  TODO(syoussefi): deprecated.  Will be removed once Chrome supports
      // EGL_ANDROID_blob_cache. http://anglebug.com/2516
      void putBinary(const egl::BlobCache::Key &programHash, const uint8_t *binary, size_t length);
  
      // Check the cache, and deserialize and load the program if found. Evict existing hash if load
      // fails.
      angle::Result getProgram(const Context *context,
                               Program *program,
                               egl::BlobCache::Key *hashOut);
  
      // Empty the cache.
      void clear();
  
      // Resize the cache. Discards current contents.
      void resize(size_t maxCacheSizeBytes);
  
      // Returns the number of entries in the cache.
      size_t entryCount() const;
  
      // Reduces the current cache size and returns the number of bytes freed.
      size_t trim(size_t limit);
  
      // Returns the current cache size in bytes.
      size_t size() const;
  
      // Returns the maximum cache size in bytes.
      size_t maxSize() const;
  
    private:
      egl::BlobCache &mBlobCache;
      unsigned int mIssuedWarnings;
  };
  
  }  // namespace gl
  
  #endif  // LIBANGLE_MEMORY_PROGRAM_CACHE_H_
  

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