webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 90 insertions, 0 deletions

diff --git a/Source/ThirdParty/ANGLE/src/compiler/translator/Cache.h b/Source/ThirdParty/ANGLE/src/compiler/translator/Cache.h
new file mode 100644
index 000000000..1d2abb77e
--- /dev/null
+++ b/Source/ThirdParty/ANGLE/src/compiler/translator/Cache.h
@@ -0,0 +1,90 @@
+//
+// Copyright (c) 2015 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.
+//
+
+// Cache.h: Implements a cache for various commonly created objects.
+
+#ifndef COMPILER_TRANSLATOR_CACHE_H_
+#define COMPILER_TRANSLATOR_CACHE_H_
+
+#include <stdint.h>
+#include <string.h>
+#include <map>
+
+#include "compiler/translator/Types.h"
+#include "compiler/translator/PoolAlloc.h"
+
+class TCache
+{
+  public:
+
+    static void initialize();
+    static void destroy();
+
+    static const TType *getType(TBasicType basicType,
+                                TPrecision precision)
+    {
+        return getType(basicType, precision, EvqTemporary,
+                       1, 1);
+    }
+    static const TType *getType(TBasicType basicType,
+                                unsigned char primarySize = 1,
+                                unsigned char secondarySize = 1)
+    {
+        return getType(basicType, EbpUndefined, EvqGlobal,
+                       primarySize, secondarySize);
+    }
+    static const TType *getType(TBasicType basicType,
+                                TQualifier qualifier,
+                                unsigned char primarySize = 1,
+                                unsigned char secondarySize = 1)
+    {
+        return getType(basicType, EbpUndefined, qualifier,
+                       primarySize, secondarySize);
+    }
+    static const TType *getType(TBasicType basicType,
+                                TPrecision precision,
+                                TQualifier qualifier,
+                                unsigned char primarySize,
+                                unsigned char secondarySize);
+
+  private:
+    TCache()
+    {
+    }
+
+    union TypeKey
+    {
+        TypeKey(TBasicType basicType,
+                TPrecision precision,
+                TQualifier qualifier,
+                unsigned char primarySize,
+                unsigned char secondarySize);
+
+        typedef uint8_t EnumComponentType;
+        struct
+        {
+            EnumComponentType basicType;
+            EnumComponentType precision;
+            EnumComponentType qualifier;
+            unsigned char primarySize;
+            unsigned char secondarySize;
+        } components;
+        uint64_t value;
+
+        bool operator < (const TypeKey &other) const
+        {
+            return value < other.value;
+        }
+    };
+    typedef std::map<TypeKey, const TType*> TypeMap;
+
+    TypeMap mTypes;
+    TPoolAllocator mAllocator;
+
+    static TCache *sCache;
+};
+
+#endif  // COMPILER_TRANSLATOR_CACHE_H_