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/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
/** \file
* \ingroup freestyle
* \brief Classes to render a stroke with OpenGL
*/
#include <algorithm>
#include <map>
#include <string.h>
#include <utility>
#include <vector>
#include "Stroke.h"
#include "StrokeRep.h"
#include "../system/FreestyleConfig.h"
#ifdef WITH_CXX_GUARDEDALLOC
# include "MEM_guardedalloc.h"
#endif
namespace Freestyle {
/**********************************/
/* */
/* */
/* TextureManager */
/* */
/* */
/**********************************/
/** Class to load textures */
class TextureManager {
public:
TextureManager();
virtual ~TextureManager();
static TextureManager *getInstance()
{
return _pInstance;
}
void load();
unsigned getBrushTextureIndex(string name, Stroke::MediumType iType = Stroke::OPAQUE_MEDIUM);
inline bool hasLoaded() const
{
return _hasLoadedTextures;
}
inline unsigned int getDefaultTextureId() const
{
return _defaultTextureId;
}
struct Options {
static void setPatternsPath(const string &path);
static string getPatternsPath();
static void setBrushesPath(const string &path);
static string getBrushesPath();
};
protected:
virtual void loadStandardBrushes() = 0;
virtual unsigned loadBrush(string fileName, Stroke::MediumType = Stroke::OPAQUE_MEDIUM) = 0;
typedef std::pair<string, Stroke::MediumType> BrushTexture;
struct cmpBrushTexture {
bool operator()(const BrushTexture &bt1, const BrushTexture &bt2) const
{
int r = strcmp(bt1.first.c_str(), bt2.first.c_str());
if (r != 0) {
return (r < 0);
}
else {
return (bt1.second < bt2.second);
}
}
};
typedef std::map<BrushTexture, unsigned, cmpBrushTexture> brushesMap;
static TextureManager *_pInstance;
bool _hasLoadedTextures;
brushesMap _brushesMap;
static string _patterns_path;
static string _brushes_path;
unsigned int _defaultTextureId;
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:TextureManager")
#endif
};
/**********************************/
/* */
/* */
/* StrokeRenderer */
/* */
/* */
/**********************************/
/** Class to render a stroke. Creates a triangle strip and stores it strip is lazily created at the
* first rendering */
class StrokeRenderer {
public:
virtual ~StrokeRenderer();
/** Renders a stroke rep */
virtual void RenderStrokeRep(StrokeRep *iStrokeRep) const = 0;
virtual void RenderStrokeRepBasic(StrokeRep *iStrokeRep) const = 0;
// initializes the texture manager
// lazy, checks if it has already been done
static bool loadTextures();
// static unsigned int getTextureIndex(unsigned int index);
static TextureManager *_textureManager;
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:StrokeRenderer")
#endif
};
} /* namespace Freestyle */
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