81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
/**
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\file G3D/Image4.h
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\maintainer Morgan McGuire, http://graphics.cs.williams.edu
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\created 2007-01-31
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\edited 2011-08-11
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*/
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#ifndef G3D_Image4_h
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#define G3D_Image4_h
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#include "G3D/platform.h"
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#include "G3D/Map2D.h"
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#include "G3D/Color4.h"
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namespace G3D {
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typedef shared_ptr<class Image4> Image4Ref;
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/**
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RGBA image with 32-bit floating point storage for each channel.
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Whenever a method needs to convert from RGB to RGBA, A=1 is assumed.
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Bilinear interpolation on Image4 is about 8x faster than on
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Image4unorm8 due to the large cost of converting int->float on modern
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machines.
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@sa G3D::Image4unorm8, G3D::GImage.
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*/
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class Image4 : public Map2D<Color4, Color4> {
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public:
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typedef Image4 Type;
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typedef shared_ptr<class Image4> Ref;
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protected:
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Image4(int w, int h, WrapMode wrap);
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void copyArray(const Color1* src, int w, int h);
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void copyArray(const Color3* src, int w, int h);
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void copyArray(const Color4* src, int w, int h);
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void copyArray(const Color1unorm8* src, int w, int h);
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void copyArray(const Color3unorm8* src, int w, int h);
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void copyArray(const Color4unorm8* src, int w, int h);
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public:
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const class ImageFormat* format() const;
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/** Creates an all-zero width x height image. */
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static Ref createEmpty(int width, int height, WrapMode wrap = WrapMode::ERROR);
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/** Creates a 0 x 0 image. */
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static Ref createEmpty(WrapMode wrap = WrapMode::ERROR);
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static Ref fromFile(const std::string& filename, WrapMode wrap = WrapMode::ERROR);
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static Ref fromArray(const class Color1unorm8* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
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static Ref fromArray(const class Color3unorm8* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
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static Ref fromArray(const class Color4unorm8* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
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static Ref fromArray(const class Color1* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
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static Ref fromArray(const class Color3* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
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static Ref fromArray(const class Color4* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
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static Ref fromImage4unorm8(const shared_ptr<class Image4unorm8>& im);
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/** Loads from any of the file formats supported by G3D::GImage. */
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void load(const std::string& filename);
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/** Saves in any of the formats supported by G3D::GImage. */
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void save(const std::string& filename);
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};
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} // G3D
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#endif
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