rename gradients private BitmapCache to GradientBitmapCache

R=caryclark@google.com
NOTREECHECKS=True

Author: reed@google.com

Review URL: https://codereview.chromium.org/474983005

1 files changed, 49 insertions, 0 deletions

diff --git a/src/effects/gradients/SkGradientBitmapCache.h b/src/effects/gradients/SkGradientBitmapCache.h
new file mode 100644
index 0000000000..009b9561a7
--- /dev/null
+++ b/src/effects/gradients/SkGradientBitmapCache.h
@@ -0,0 +1,49 @@
+
+/*
+ * 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 SkGradientBitmapCache_DEFINED
+#define SkGradientBitmapCache_DEFINED
+
+#include "SkBitmap.h"
+
+class SkGradientBitmapCache : SkNoncopyable {
+public:
+    SkGradientBitmapCache(int maxEntries);
+    ~SkGradientBitmapCache();
+
+    bool find(const void* buffer, size_t len, SkBitmap*) const;
+    void add(const void* buffer, size_t len, const SkBitmap&);
+
+private:
+    int fEntryCount;
+    const int fMaxEntries;
+
+    struct Entry;
+    mutable Entry*  fHead;
+    mutable Entry*  fTail;
+
+    inline Entry* detach(Entry*) const;
+    inline void attachToHead(Entry*) const;
+
+#ifdef SK_DEBUG
+    void validate() const;
+#else
+    void validate() const {}
+#endif
+
+    class AutoValidate : SkNoncopyable {
+    public:
+        AutoValidate(const SkGradientBitmapCache* bc) : fBC(bc) { bc->validate(); }
+        ~AutoValidate() { fBC->validate(); }
+    private:
+        const SkGradientBitmapCache* fBC;
+    };
+};
+
+#endif