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/*******************************************************************************
* truetype.h
*
* This module contains all defines, typedefs, and prototypes for TRUETYPE.CPP.
*
* ---------------------------------------------------------------------------
* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
*
* POV-Ray is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* POV-Ray is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* ---------------------------------------------------------------------------
* POV-Ray is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
* ---------------------------------------------------------------------------
* $File: //depot/public/povray/3.x/source/backend/shape/truetype.h $
* $Revision: #1 $
* $Change: 6069 $
* $DateTime: 2013/11/06 11:59:40 $
* $Author: chrisc $
*******************************************************************************/
#ifndef TRUETYPE_H
#define TRUETYPE_H
#include "backend/scene/scene.h"
#include "backend/shape/csg.h"
namespace pov
{
/*****************************************************************************
* Global preprocessor defines
******************************************************************************/
#define TTF_OBJECT (BASIC_OBJECT)
/*****************************************************************************
* Global typedefs
******************************************************************************/
typedef struct GlyphStruct *GlyphPtr;
struct FontFileInfo;
class TrueType : public ObjectBase
{
public:
GlyphPtr glyph; /* (GlyphPtr) Pointer to the glyph */
DBL depth; /* Amount of extrusion */
TrueType();
virtual ~TrueType();
virtual ObjectPtr Copy();
virtual bool All_Intersections(const Ray&, IStack&, TraceThreadData *);
virtual bool Inside(const VECTOR, TraceThreadData *) const;
virtual void Normal(VECTOR, Intersection *, TraceThreadData *) const;
virtual void Translate(const VECTOR, const TRANSFORM *);
virtual void Rotate(const VECTOR, const TRANSFORM *);
virtual void Scale(const VECTOR, const TRANSFORM *);
virtual void Transform(const TRANSFORM *);
virtual void Invert();
virtual void Compute_BBox();
static void ProcessNewTTF(CSG *Object, const char *filename, const int font_id, const UCS2 *text_string, DBL depth, const VECTOR offset, Parser *parser, shared_ptr<SceneData>& sceneData);
protected:
bool Inside_Glyph(double x, double y, const GlyphStruct* glyph) const;
int solve_quad(double *x, double *y, double mindist, DBL maxdist) const;
void GetZeroOneHits(const GlyphStruct* glyph, const VECTOR P, const VECTOR D, DBL glyph_depth, double *t0, double *t1) const;
bool GlyphIntersect(const VECTOR P, const VECTOR D, const GlyphStruct* glyph, DBL glyph_depth, const Ray &ray, IStack& Depth_Stack, TraceThreadData *Thread);
};
void FreeFontInfo(FontFileInfo *ffi);
}
#endif
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