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-rwxr-xr-xgfx/angle/src/compiler/translator/Cache.h95
1 files changed, 95 insertions, 0 deletions
diff --git a/gfx/angle/src/compiler/translator/Cache.h b/gfx/angle/src/compiler/translator/Cache.h
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index 000000000..9a5607f24
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+++ b/gfx/angle/src/compiler/translator/Cache.h
@@ -0,0 +1,95 @@
+//
+// 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"
+
+namespace sh
+{
+
+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;
+};
+
+} // namespace sh
+
+#endif // COMPILER_TRANSLATOR_CACHE_H_