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+/*
+ * Copyright (C) 2010 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 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 QTDecompressionSession_h
+#define QTDecompressionSession_h
+
+#ifdef QTMOVIEWIN_EXPORTS
+#define QTMOVIEWIN_API __declspec(dllexport)
+#else
+#define QTMOVIEWIN_API __declspec(dllimport)
+#endif
+
+#include "QTPixelBuffer.h"
+
+#include <WTF/PassOwnPtr.h>
+
+class QTDecompressionSessionClient;
+typedef struct OpaqueICMDecompressionSession* ICMDecompressionSessionRef;
+
+class QTMOVIEWIN_API QTDecompressionSession {
+public:
+ static PassOwnPtr<QTDecompressionSession> create(unsigned long pixelFormat, size_t width, size_t height);
+ ~QTDecompressionSession();
+
+ bool canDecompress(QTPixelBuffer);
+
+ // The resulting QTPixelBuffer will be a CG compatable ARGB pixel buffer.
+ QTPixelBuffer decompress(QTPixelBuffer);
+
+private:
+ friend class QTDecompressionSessionClient;
+ QTDecompressionSession(unsigned long pixelFormat, size_t width, size_t height);
+ void initializeSession();
+
+ unsigned long m_pixelFormat;
+ size_t m_width;
+ size_t m_height;
+ QTPixelBuffer m_latestFrame;
+ ICMDecompressionSessionRef m_session;
+};
+
+#endif