PBRT
/home/felix/UBC/projects/AdaptiveLightfieldSampling/pbrt_v2/src/film/image.h
00001 
00002 /*
00003     pbrt source code Copyright(c) 1998-2012 Matt Pharr and Greg Humphreys.
00004 
00005     This file is part of pbrt.
00006 
00007     Redistribution and use in source and binary forms, with or without
00008     modification, are permitted provided that the following conditions are
00009     met:
00010 
00011     - Redistributions of source code must retain the above copyright
00012       notice, this list of conditions and the following disclaimer.
00013 
00014     - Redistributions in binary form must reproduce the above copyright
00015       notice, this list of conditions and the following disclaimer in the
00016       documentation and/or other materials provided with the distribution.
00017 
00018     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
00019     IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
00020     TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
00021     PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
00022     HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00023     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00024     LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00025     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00026     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00027     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00028     OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00029 
00030  */
00031 
00032 #if defined(_MSC_VER)
00033 #pragma once
00034 #endif
00035 
00036 #ifndef PBRT_FILM_IMAGE_H
00037 #define PBRT_FILM_IMAGE_H
00038 
00039 // film/image.h*
00040 #include "pbrt.h"
00041 #include "film.h"
00042 #include "sampler.h"
00043 #include "filter.h"
00044 #include "paramset.h"
00045 
00046 // ImageFilm Declarations
00047 class ImageFilm : public Film {
00048 public:
00049     // ImageFilm Public Methods
00050     ImageFilm(int xres, int yres, Filter *filt, const float crop[4],
00051               const string &filename, bool openWindow);
00052     ~ImageFilm() {
00053         delete pixels;
00054         delete filter;
00055         delete[] filterTable;
00056     }
00057     void AddSample(const CameraSample &sample, const Spectrum &L);
00058     void Splat(const CameraSample &sample, const Spectrum &L);
00059     void GetSampleExtent(int *xstart, int *xend, int *ystart, int *yend) const;
00060     void GetPixelExtent(int *xstart, int *xend, int *ystart, int *yend) const;
00061     void WriteImage(float splatScale);
00062     void UpdateDisplay(int x0, int y0, int x1, int y1, float splatScale);
00063 private:
00064     // ImageFilm Private Data
00065     Filter *filter;
00066     float cropWindow[4];
00067     string filename;
00068     int xPixelStart, yPixelStart, xPixelCount, yPixelCount;
00069     struct Pixel {
00070         Pixel() {
00071             for (int i = 0; i < 3; ++i) Lxyz[i] = splatXYZ[i] = 0.f;
00072             weightSum = 0.f;
00073         }
00074         float Lxyz[3];
00075         float weightSum;
00076         float splatXYZ[3];
00077         float pad;
00078     };
00079     BlockedArray<Pixel> *pixels;
00080     float *filterTable;
00081 };
00082 
00083 
00084 ImageFilm *CreateImageFilm(const ParamSet &params, Filter *filter);
00085 
00086 #endif // PBRT_FILM_IMAGE_H