99 lines
3.0 KiB
Plaintext
99 lines
3.0 KiB
Plaintext
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#ifndef OSG_IMAGE
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#define OSG_IMAGE 1
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#include <osg/Object>
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#include <osg/OSG>
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namespace osg {
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class Output;
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class Input;
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/** Image class for encapsulating the storage texture image data.*/
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class SG_EXPORT Image : public Object
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{
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public :
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Image();
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virtual Object* clone() const { return new Image(); }
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virtual bool isSameKindAs(Object* obj) { return dynamic_cast<Image*>(obj)!=NULL; }
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virtual const char* className() const { return "Image"; }
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const char* getFileName() { return _fileName; }
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void setFileName(const char* fileName);
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/** set the image data and format.
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* note, when no packing value is negative (the default is -1) this method assumes
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* a _packing width of 1 if the width is not a multiple of 4,
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* otherwise automatically sets to _packing to 4. If a postive
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* value of packing is supplied than _packing is simply set to that value.
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*/
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void setImage(int s,int t,int r,
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int internalFormat,
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unsigned int pixelFormat,
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unsigned int dataType,
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unsigned char *data,
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int packing=-1);
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/** Width of image.*/
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int s() { return _s; }
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/** Height of image.*/
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int t() { return _t; }
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/** Depth of image.*/
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int r() { return _r; }
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int internalFormat() { return _internalFormat; }
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unsigned int pixelFormat() { return _pixelFormat; }
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unsigned int dataType() { return _dataType; }
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unsigned int packing() { return _packing; }
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/** raw image data.*/
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unsigned char *data() { return _data; }
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/** Scale image to specified size. */
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void scaleImage(int s,int t,int r);
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/** Ensure image dimensions are a power of two.
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* Mip Mapped texture require the image dimensions to be
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* power of two.
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*/
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void ensureDimensionsArePowerOfTwo();
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protected :
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virtual ~Image();
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// Image(const Image&) {}
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// Image& operator = (const Image& image) {}
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virtual bool readLocalData(Input& fr);
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virtual bool writeLocalData(Output& fw);
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char* _fileName;
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int _s, _t, _r;
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int _internalFormat;
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unsigned int _pixelFormat;
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unsigned int _dataType;
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unsigned int _packing;
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unsigned char *_data;
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};
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class Geode;
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/** Convinience function to be used by images loaders to generate a valid geode to return for readNode().
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* Use the images s and t values scale the dimensions of the image.
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*/
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SG_EXPORT extern Geode* createGeodeForImage(Image* image);
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/** Convinience function to be used by images loaders to generate a valid geode to return for readNode().
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* Use the specified s and t values scale the dimensions of the image.
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*/
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SG_EXPORT extern Geode* createGeodeForImage(Image* image,float s,float t);
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};
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#endif // __SG_IMAGE_H
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