1 files changed, 66 insertions, 0 deletions
diff --git a/WebCore/platform/image-decoders/png/PNGImageDecoder.h b/WebCore/platform/image-decoders/png/PNGImageDecoder.h
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+++ b/WebCore/platform/image-decoders/png/PNGImageDecoder.h
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+/*
+ * Copyright (C) 2006 Apple Computer, 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 COMPUTER, 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 COMPUTER, 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 PNG_DECODER_H_
+#define PNG_DECODER_H_
+
+#include "ImageDecoder.h"
+
+namespace WebCore {
+
+class PNGImageReader;
+
+// This class decodes the PNG image format.
+class PNGImageDecoder : public ImageDecoder
+{
+public:
+    PNGImageDecoder();
+    ~PNGImageDecoder();
+
+    // Take the data and store it.
+    virtual void setData(SharedBuffer* data, bool allDataReceived);
+
+    // Whether or not the size information has been decoded yet.
+    virtual bool isSizeAvailable() const;
+
+    virtual RGBA32Buffer* frameBufferAtIndex(size_t index);
+
+    void decode(bool sizeOnly = false) const;
+
+    PNGImageReader* reader() { return m_reader; }
+
+    // Callbacks from libpng
+    void decodingFailed() { m_failed = true; }
+    void headerAvailable();
+    void rowAvailable(unsigned char* rowBuffer, unsigned rowIndex, int interlacePass);
+    void pngComplete();
+
+private:
+    mutable PNGImageReader* m_reader;
+};
+
+}
+
+#endif