1 files changed, 64 insertions, 0 deletions
diff --git a/include/gpu/GrAllocPool.h b/include/gpu/GrAllocPool.h
new file mode 100644
index 0000000000..3ecc4aa189
--- /dev/null
+++ b/include/gpu/GrAllocPool.h
@@ -0,0 +1,64 @@
+
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+
+#ifndef GrAllocPool_DEFINED
+#define GrAllocPool_DEFINED
+
+#include "GrNoncopyable.h"
+
+class GrAllocPool : GrNoncopyable {
+public:
+    GrAllocPool(size_t blockSize = 0);
+    ~GrAllocPool();
+
+    /**
+     *  Frees all blocks that have been allocated with alloc().
+     */
+    void reset();
+
+    /**
+     *  Returns a block of memory bytes size big. This address must not be
+     *  passed to realloc/free/delete or any other function that assumes the
+     *  address was allocated by malloc or new (because it hasn't).
+     */
+    void* alloc(size_t bytes);
+    
+    /**
+     * Releases the most recently allocated bytes back to allocpool.
+     */
+    void release(size_t bytes);
+
+private:
+    struct Block;
+
+    Block*  fBlock;
+    size_t  fMinBlockSize;
+
+#if GR_DEBUG
+    int fBlocksAllocated;
+    void validate() const;
+#else
+    void validate() const {}
+#endif
+};
+
+template <typename T> class GrTAllocPool {
+public:
+    GrTAllocPool(int count) : fPool(count * sizeof(T)) {}
+
+    void reset() { fPool.reset(); }
+    T* alloc() { return (T*)fPool.alloc(sizeof(T)); }
+
+private:
+    GrAllocPool fPool;
+};
+
+#endif
+