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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 JPEG_DECODER_H_
+#define JPEG_DECODER_H_
+
+#include "ImageDecoder.h"
+
+namespace WebCore {
+
+class JPEGImageReader;
+
+// This class decodes the JPEG image format.
+class JPEGImageDecoder : public ImageDecoder
+{
+public:
+ JPEGImageDecoder();
+ ~JPEGImageDecoder();
+
+ // 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);
+
+ virtual bool supportsAlpha() const { return false; }
+
+ void decode(bool sizeOnly = false) const;
+
+ JPEGImageReader* reader() { return m_reader; }
+
+ void setSize(int width, int height) {
+ if (!m_sizeAvailable) {
+ m_sizeAvailable = true;
+ m_size = IntSize(width, height);
+ }
+ }
+
+ bool outputScanlines();
+ void jpegComplete();
+
+private:
+ mutable JPEGImageReader* m_reader;
+};
+
+}
+
+#endif