Disabled external gits
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375
cs440-acg/ext/openexr/OpenEXR_Viewers/playexr/main.cpp
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375
cs440-acg/ext/openexr/OpenEXR_Viewers/playexr/main.cpp
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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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//-----------------------------------------------------------------------------
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//
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// playexr -- a program that plays back an
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// OpenEXR image sequence directly from disk.
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//
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//-----------------------------------------------------------------------------
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#include "playExr.h"
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#include "osDependent.h"
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#include <IlmThread.h>
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#include <iostream>
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#include <exception>
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#include <vector>
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#include <string>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <cstring>
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using namespace std;
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namespace {
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void
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usageMessage (const char argv0[], bool verbose = false)
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{
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cerr << "usage: " << argv0 << " "
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"[options] fileName [firstFrame lastFrame]" << endl;
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if (verbose)
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{
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cerr << "\n"
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"Plays back a sequence of OpenEXR files. All files must\n"
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"have the same data window and the same set of channels.\n"
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"The names of the files are constructed by substituting\n"
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"the first '%' in fileName with firstFrame, firstFrame+1,\n"
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"firstFrame+2, ... lastFrame. For example,\n"
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"\n"
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" " << argv0 << " image.%.exr 1 100\n"
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"\n"
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"plays back image.1.exr, image.2.exr ... image.100.exr.\n"
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"\n"
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"Options:\n"
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"\n"
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"-t n read the images using n parallel threads\n"
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"\n"
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"-f n images will be played back at a rate of n frames\n"
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" per second (assuming that reading and displaying\n"
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" an individual image file takes no more than 1/n\n"
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" seconds).\n"
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"\n"
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"-S n images will be displayed at n times their original\n"
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" width and height. n must be in the range from 0.1\n"
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" to 2.0.\n"
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"\n"
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#if HAVE_CTL_INTERPRETER
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"-C s CTL transform s is applied to each image before it\n"
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" is displayed. Option -C can be specified multiple\n"
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" times to apply a series of transforms to each image.\n"
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" The transforms are applied in the order in which\n"
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" they appear on the command line.\n"
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"\n"
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"-i On machines where the graphics hardware does not\n"
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" directly support interpolation between texture map\n"
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" pixels images with smooth color gradients will\n"
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" exhibit contouring artifacts. Option -i selects\n"
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" software-based texture pixel interpolation. This\n"
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" avoids contouring but may slow down image playback.\n"
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"\n"
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#endif
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"-h prints this message\n"
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"\n"
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#if HAVE_CTL_INTERPRETER
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"CTL transforms:\n"
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"\n"
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" If one or more CTL transforms are specified on\n"
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" the command line (using the -C flag), then those\n"
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" transforms are applied to the images.\n"
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" If no CTL transforms are specified on the command\n"
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" line then an optional look modification transform\n"
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" is applied, followed by a rendering transform and\n"
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" a display transform.\n"
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" The name of the look modification transform is\n"
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" taken from the lookModTransform attribute in the\n"
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" header of the first frame of the image sequence.\n"
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" If the header contains no such attribute, then no\n"
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" look modification transform is applied. The name\n"
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" of the rendering transform is taken from the\n"
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" renderingTransform attribute in the header of the\n"
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" first frame of the image sequence. If the header\n"
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" contains no such attribute, then the name of the\n"
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" rendering transform is \"transform_RRT.\" The\n"
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" name of the display transform is taken from the\n"
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" environment variable CTL_DISPLAY_TRANSFORM. If this\n"
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" environment variable is not set, then the name of\n"
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" the display transform is \"transform_display_video.\"\n"
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" The files that contain the CTL code for the\n"
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" transforms are located using the CTL_MODULE_PATH\n"
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" environment variable.\n"
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"\n"
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#endif
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"Playback frame rate:\n"
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"\n"
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" If the frame rate is not specified on the command\n"
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" line (using the -f flag), then the frame rate is\n"
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" determined by the framesPerSecond attribute in the\n"
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" header of the first frame of the image sequence.\n"
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" If the header contains no framesPerSecond attribute\n"
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" then the frame rate is set to 24 frames per second.\n"
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"\n"
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"Keyboard commands:\n"
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"\n"
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" L or P play forward / pause\n"
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" H play backward / pause\n"
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" K step one frame forward\n"
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" J step one frame backward\n"
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" > or . increase exposure\n"
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" < or , decrease exposure\n"
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#if HAVE_CTL_INTERPRETER
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" C CTL transforms on/off\n"
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#endif
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" O text overlay on/off\n"
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" F full-screen mode on/off\n"
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" Q or ESC quit\n"
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"\n";
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cerr << endl;
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}
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exit (1);
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}
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int exitStatus = 0;
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void
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quickexit ()
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{
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//
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// Hack to avoid crashes when someone presses the close or 'X'
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// button in the title bar of our window. Something GLUT does
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// while shutting down the program does not play well with
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// multiple threads. Bypassing GLUT's orderly shutdown by
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// calling _exit immediately avoids crashes.
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//
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_exit (exitStatus);
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}
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} // namespace
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int
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main(int argc, char **argv)
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{
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glutInit (&argc, argv);
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const char *fileNameTemplate = 0;
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int firstFrame = 1;
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int lastFrame = 1;
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int numThreads = 0;
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float fps = -1;
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float xyScale = 1;
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vector<string> transformNames;
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bool useHwTexInterpolation = true;
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//
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// Parse the command line.
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//
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if (argc < 2)
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usageMessage (argv[0], true);
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int i = 1;
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int j = 0;
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while (i < argc)
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{
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if (!strcmp (argv[i], "-t"))
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{
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//
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// Set number of threads
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//
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if (i > argc - 2)
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usageMessage (argv[0]);
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numThreads = strtol (argv[i + 1], 0, 0);
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if (numThreads < 0)
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{
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cerr << "Number of threads cannot be negative." << endl;
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return 1;
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}
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i += 2;
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}
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else if (!strcmp (argv[i], "-f"))
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{
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//
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// Set frame rate
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//
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if (i > argc - 2)
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usageMessage (argv[0]);
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fps = strtod (argv[i + 1], 0);
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if (fps < 1 || fps > 1000)
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{
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cerr << "Playback speed must be between "
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"1 and 1000 frames per second." << endl;
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return 1;
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}
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i += 2;
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}
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else if (!strcmp (argv[i], "-S"))
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{
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//
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// Set image scale factor
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//
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if (i > argc - 2)
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usageMessage (argv[0]);
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xyScale = strtod (argv[i + 1], 0);
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if (xyScale < 0.1 || xyScale > 2.0)
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{
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cerr << "Scale factor must be between 0.1 and 2.0." << endl;
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return 1;
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}
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i += 2;
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}
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else if (!strcmp (argv[i], "-C"))
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{
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//
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// Apply a CTL transform
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//
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if (i > argc - 2)
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usageMessage (argv[0]);
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transformNames.push_back (argv[i + 1]);
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i += 2;
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}
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else if (!strcmp (argv[i], "-i"))
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{
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//
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// Use software-based texture map interpolation
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//
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useHwTexInterpolation = false;
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i += 1;
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}
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else if (!strcmp (argv[i], "-h"))
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{
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//
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// Print help message
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//
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usageMessage (argv[0], true);
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}
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else
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{
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//
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// Image file name or frame number
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//
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switch (j)
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{
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case 0:
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fileNameTemplate = argv[i];
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break;
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case 1:
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firstFrame = strtol (argv[i], 0, 0);
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break;
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case 2:
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lastFrame = strtol (argv[i], 0, 0);
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break;
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default:
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break;
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}
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i += 1;
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j += 1;
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}
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}
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if (j != 1 && j != 3)
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usageMessage (argv[0]);
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if (firstFrame > lastFrame)
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{
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cerr << "Frame number of first frame is greater than "
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"frame number of last frame." << endl;
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return 1;
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}
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//
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// Make sure that we have threading support.
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//
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if (!ILMTHREAD_NAMESPACE::supportsThreads())
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{
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cerr << "This program requires multi-threading support.\n" << endl;
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return 1;
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}
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//
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// Play the image sequence.
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//
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atexit (quickexit);
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try
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{
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playExr (fileNameTemplate,
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firstFrame,
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lastFrame,
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numThreads,
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fps,
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xyScale,
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transformNames,
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useHwTexInterpolation);
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}
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catch (const exception &e)
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{
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cerr << e.what() << endl;
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exitStatus = 1;
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}
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return exitStatus;
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}
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