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/**
@file Image4.h
@maintainer Morgan McGuire, http://graphics.cs.williams.edu
@created 2007-01-31
@edited 2007-01-31
*/
#ifndef G3D_IMAGE4_H
#define G3D_IMAGE4_H
#include "G3D/platform.h"
#include "G3D/Map2D.h"
#include "G3D/Color4.h"
#include "G3D/GImage.h"
namespace G3D {
typedef ReferenceCountedPointer<class Image4> Image4Ref;
/**
RGBA image with 32-bit floating point storage for each channel.
Whenever a method needs to convert from RGB to RGBA, A=1 is assumed.
Bilinear interpolation on Image4 is about 8x faster than on
Image4uint8 due to the large cost of converting int->float on modern
machines.
@sa G3D::Image4uint8, G3D::GImage.
*/
class Image4 : public Map2D<Color4, Color4> {
public:
typedef Image4 Type;
typedef ReferenceCountedPointer<class Image4> Ref;
typedef Color4 Storage;
typedef Color4 Compute;
protected:
Image4(int w, int h, WrapMode wrap);
void copyGImage(const class GImage& im);
void copyArray(const Color1* src, int w, int h);
void copyArray(const Color3* src, int w, int h);
void copyArray(const Color4* src, int w, int h);
void copyArray(const Color1uint8* src, int w, int h);
void copyArray(const Color3uint8* src, int w, int h);
void copyArray(const Color4uint8* src, int w, int h);
public:
const class ImageFormat* format() const;
/** Creates an all-zero width x height image. */
static Ref createEmpty(int width, int height, WrapMode wrap = WrapMode::ERROR);
/** Creates a 0 x 0 image. */
static Ref createEmpty(WrapMode wrap = WrapMode::ERROR);
static Ref fromFile(const std::string& filename, WrapMode wrap = WrapMode::ERROR, GImage::Format fmt = GImage::AUTODETECT);
static Ref fromArray(const class Color1uint8* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
static Ref fromArray(const class Color3uint8* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
static Ref fromArray(const class Color4uint8* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
static Ref fromArray(const class Color1* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
static Ref fromArray(const class Color3* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
static Ref fromArray(const class Color4* ptr, int width, int height, WrapMode wrap = WrapMode::ERROR);
static Ref fromImage4uint8(const ReferenceCountedPointer<class Image4uint8>& im);
static Ref fromGImage(const class GImage& im, WrapMode wrap = WrapMode::ERROR);
/** Loads from any of the file formats supported by G3D::GImage. */
void load(const std::string& filename, GImage::Format fmt = GImage::AUTODETECT);
/** Saves in any of the formats supported by G3D::GImage. */
void save(const std::string& filename, GImage::Format fmt = GImage::AUTODETECT);
};
} // G3D
#endif
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