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+/*
+ * Copyright (C) 2012 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef COMPILER_ARRAY_BOUNDS_CLAMPER_H_
+#define COMPILER_ARRAY_BOUNDS_CLAMPER_H_
+
+#include "GLSLANG/ShaderLang.h"
+
+#include "compiler/InfoSink.h"
+#include "compiler/intermediate.h"
+
+class ArrayBoundsClamper {
+public:
+ ArrayBoundsClamper();
+
+ // Output array clamp function source into the shader source.
+ void OutputClampingFunctionDefinition(TInfoSinkBase& out) const;
+
+ // Marks nodes in the tree that index arrays indirectly as
+ // requiring clamping.
+ void MarkIndirectArrayBoundsForClamping(TIntermNode* root);
+
+ void Cleanup()
+ {
+ mArrayBoundsClampDefinitionNeeded = false;
+ }
+
+private:
+ bool GetArrayBoundsClampDefinitionNeeded() const { return mArrayBoundsClampDefinitionNeeded; }
+ void SetArrayBoundsClampDefinitionNeeded() { mArrayBoundsClampDefinitionNeeded = true; }
+
+ bool mArrayBoundsClampDefinitionNeeded;
+};
+
+#endif // COMPILER_ARRAY_BOUNDS_CLAMPER_H_