123 lines
3.8 KiB
C++
123 lines
3.8 KiB
C++
/*******************************************************************************
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* imageutil.h
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*
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* This module contains all defines, typedefs, and prototypes for imageutil.cpp.
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*
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* ---------------------------------------------------------------------------
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* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
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* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
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*
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* POV-Ray is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* POV-Ray is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* ---------------------------------------------------------------------------
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* POV-Ray is based on the popular DKB raytracer version 2.12.
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* DKBTrace was originally written by David K. Buck.
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* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
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* ---------------------------------------------------------------------------
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* $File: //depot/public/povray/3.x/source/backend/support/imageutil.h $
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* $Revision: #1 $
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* $Change: 6069 $
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* $DateTime: 2013/11/06 11:59:40 $
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* $Author: chrisc $
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*******************************************************************************/
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#ifndef IMAGE_H
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#define IMAGE_H
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#include "base/image/image.h"
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namespace pov
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{
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using namespace pov_base;
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/*****************************************************************************
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* Global preprocessor defines
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******************************************************************************/
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// Image/Bump Map projection types.
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enum
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{
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PLANAR_MAP = 0,
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SPHERICAL_MAP = 1,
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CYLINDRICAL_MAP = 2,
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PARABOLIC_MAP = 3,
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HYPERBOLIC_MAP = 4,
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TORUS_MAP = 5,
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PIRIFORM_MAP = 6,
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OLD_MAP = 7
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};
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// Bit map interpolation types.
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enum
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{
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// NO_INTERPOLATION = 0, // already in pattern.h
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NEAREST_NEIGHBOR = 1, // currently not supported; would be essentially the same as NO_INTERPOLATION
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BILINEAR = 2,
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BICUBIC = 3,
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NORMALIZED_DIST = 4
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};
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enum
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{
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USE_NONE = 0,
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USE_COLOUR = 1,
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USE_INDEX = 2,
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USE_ALPHA = 3
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};
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class ImageData
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{
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public:
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int References; // Keeps track of number of pointers to this structure
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int Map_Type;
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int Interpolation_Type;
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bool Once_Flag;
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char Use;
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VECTOR Gradient;
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int iwidth, iheight;
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SNGL width, height;
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UV_VECT Offset;
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DBL AllFilter, AllTransmit;
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void *Object;
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Image *data;
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// it would have been a lot cleaner if POV_VIDCAP_IMPL was a subclass of pov::Image,
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// since we could just assign it to data above and the following would not be needed.
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// however at this point pov::Image doesn't allow the default constructor to be used,
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// and we don't know our capture size or data type until after we talk to the hardware.
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#ifdef POV_VIDCAP_IMPL
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POV_VIDCAP_IMPL *VidCap;
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#endif
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};
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class Parser;
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class SceneData;
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DBL image_pattern(const VECTOR EPoint, const TPATTERN *TPattern);
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bool image_map(const VECTOR EPoint, const PIGMENT *Pigment, Colour& colour);
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TEXTURE *material_map(const VECTOR IPoint, const TEXTURE *Texture);
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void bump_map(const VECTOR EPoint, const TNORMAL *Tnormal, VECTOR normal);
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HF_VAL image_height_at(const ImageData *image, int x, int y);
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bool is_image_opaque(const ImageData *image);
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ImageData *Copy_Image(ImageData *old);
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ImageData *Create_Image(void);
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void Destroy_Image(ImageData *image);
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Image *Read_Image(Parser *p, shared_ptr<SceneData>& sd, int filetype, const UCS2 *filename, const Image::ReadOptions& options);
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}
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#endif
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