102 lines
3.6 KiB
C
102 lines
3.6 KiB
C
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///////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2006, Industrial Light & Magic, a division of Lucas
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// Digital Ltd. LLC
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Industrial Light & Magic nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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///////////////////////////////////////////////////////////////////////////
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#ifndef INCLUDED_FILE_READING_THREAD_H
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#define INCLUDED_FILE_READING_THREAD_H
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//-----------------------------------------------------------------------------
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//
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// class FileReadingThread
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//
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// The file reading thread for the playExr application; reads
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// image files and hands the pixels to the display thread.
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//
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//-----------------------------------------------------------------------------
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#include <IlmThread.h>
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#include <string>
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class ImageBuffers;
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class FileReadingThread: ILMTHREAD_NAMESPACE::Thread
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{
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public:
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//----------------------------------------------------------------
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// Constructor - stores the arguments passed by the caller,
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// and starts the thread by calling run(), below. The caller
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// must not destroy the FileReadingThread object while the
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// thread is running.
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//
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// Arguments:
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//
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// fileNameTemplate The file name for frame f will
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// be generated by calling
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// fileNameForFrame (fileNameTemplate, f)
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//
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// firstFrame, lastFrame Range of frame numbers to be loaded.
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// after loading the last frame, the
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// file reading thread starts over with
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// the first frame.
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//
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// imageBuffers A ring buffer for the pixel data
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// loaded from the image files. The
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// ring buffer has enough space for
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// imageBuffers.numBuffers() images.
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// Two semaphores track the number of
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// empty and full image buffers.
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// The file reading thread fills the
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// buffers, and the display thread
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// empties them.
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//----------------------------------------------------------------
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FileReadingThread
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(const char fileNameTemplate[],
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int firstFrame,
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int lastFrame,
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ImageBuffers &imageBuffers);
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virtual void run();
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private:
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const std::string _fileNameTemplate;
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int _firstFrame;
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int _lastFrame;
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ImageBuffers & _imageBuffers;
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};
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#endif
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