flightgear/utils/fgpanel/FGCroppedTexture.hxx
2022-10-20 20:29:11 +08:00

70 lines
2.3 KiB
C++

//
// Written by David Megginson, started January 2000.
// Adopted for standalone fgpanel application by Torsten Dreyer, August 2009
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
#ifndef FGCROPPEDTEXTURE_HXX
#define FGCROPPEDTEXTURE_HXX
#include <map>
#include <simgear/structure/SGSharedPtr.hxx>
#include "FGDummyTextureLoader.hxx"
/**
* Cropped texture (should migrate out into FGFS).
*
* This structure wraps an SSG texture with cropping information.
*/
class FGCroppedTexture : public SGReferenced {
public:
FGCroppedTexture (const string &path,
const float minX = 0.0, const float minY = 0.0,
const float maxX = 1.0, const float maxY = 1.0);
virtual ~FGCroppedTexture ();
virtual void setPath (const string &path);
virtual const string &getPath () const;
virtual void setCrop (const float minX, const float minY, const float maxX, const float maxY);
static void registerTextureLoader (const string &extension,
FGTextureLoaderInterface * const loader);
virtual float getMinX () const;
virtual float getMinY () const;
virtual float getMaxX () const;
virtual float getMaxY () const;
GLuint getTexture () const;
virtual void bind (const GLint Textured_Layer_Sampler_Loc);
private:
string m_path;
float m_minX, m_minY, m_maxX, m_maxY;
GLuint m_texture;
static GLuint s_current_bound_texture;
static map <string, GLuint> s_cache;
static map <string, FGTextureLoaderInterface*> s_TextureLoader;
static FGDummyTextureLoader s_DummyTextureLoader;
};
typedef SGSharedPtr <FGCroppedTexture> FGCroppedTexture_ptr;
#endif