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// Copyright 2009-2020 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "../../../common/sys/platform.h"
#include "../../../common/sys/ref.h"
#include "../../../common/sys/filename.h"
#include "../../../common/math/color.h"
#include <vector>
#include <string>
namespace embree
{
/* virtual interface to image */
class Image : public RefCount {
public:
Image (size_t width, size_t height, const std::string& name) : width(width), height(height), name(name) {}
virtual ~Image() {}
virtual Color4 get(size_t x, size_t y) const = 0;
virtual void set(size_t x, size_t y, const Color4& c) = 0;
void set(size_t x, size_t y, const Color& c) { set(x,y,Color4(c.r,c.g,c.b,1.0f)); }
void convertToRGBA8(unsigned char *dest)
{
for (size_t y=0;y<height;y++)
for (size_t x=0;x<width;x++)
{
size_t offset = 4 * (y * width + x);
Color4 c = get(x,y);
dest[offset+0] = (unsigned char)(c.r * 255.0f);
dest[offset+1] = (unsigned char)(c.g * 255.0f);
dest[offset+2] = (unsigned char)(c.b * 255.0f);
dest[offset+3] = (unsigned char)(c.a * 255.0f);
}
}
private:
Image (const Image& other) DELETED; // do not implement
Image& operator= (const Image& other) DELETED; // do not implement
public:
size_t width,height;
std::string name;
};
/* main image class templated over element type */
template<typename T>
class ImageT : public Image {
public:
/*! create empty image */
ImageT (size_t width = 0, size_t height = 0, const std::string& name = "")
: Image(width,height,name)
{
data = new T[width*height];
memset(data,0,width*height*sizeof(T));
}
/*! create image of constant color */
ImageT (size_t width, size_t height, const T& color, const std::string& name = "")
: Image(width,height,name)
{
data = new T[width*height];
for (size_t i=0; i<width*height; i++) data[i] = color;
}
/*! initialize image from color data */
ImageT (size_t width, size_t height, T* color, const bool copy = true, const std::string& name = "", const bool flip_y = false)
: Image(width,height,name)
{
if (copy)
{
data = new T[width*height];
if (flip_y)
{
const T* in = color + (height-1) * width;
T* out = data;
for (size_t y=0; y<height; y++)
{
for (size_t x=0; x<width; x++)
out[x] = in[x];
in -= width;
out += width;
}
}
else
{
for (size_t i=0; i<width*height; i++)
data[i] = color[i];
}
}
else
{
data = color;
}
}
/*! image destruction */
virtual ~ImageT() {
delete[] data; data = nullptr;
}
/*! returns pixel color */
__forceinline Color4 get(size_t x, size_t y) const {
return Color4(data[y*width+x]);
}
/*! sets pixel */
__forceinline void set(size_t x, size_t y, const Color4& c) {
c.set(data[y*width+x]);
}
/*! returns data pointer of image */
__forceinline void* ptr() {
return (void*)data;
}
/*! returns and forgets about data pointer of image */
__forceinline void* steal_ptr() {
T* ptr = data;
data = nullptr;
return (void*)ptr;
}
protected:
T* data;
};
/*! Shortcuts for common image types. */
typedef ImageT<Col3uc> Image3uc;
typedef ImageT<Col3f> Image3f;
typedef ImageT<Col4uc> Image4uc;
typedef ImageT<Col4f> Image4f;
/*! Generate a JPEG encoded image from a RGB8 buffer in memory. */
void encodeRGB8_to_JPEG(unsigned char *image, size_t width, size_t height, unsigned char **encoded, unsigned long *capacity);
/*! compare two images */
double compareImages(Ref<Image> image0, Ref<Image> image1);
/*! Loads image from file. Format is auto detected. */
Ref<Image> loadImage(const FileName& filename, bool cache = false);
/*! Loads image from JPEG file. */
Ref<Image> loadJPEG(const FileName& fileName);
/*! Loads image using OpenImageIO. */
Ref<Image> loadOIIO(const FileName& fileName);
/*! Loads image from PFM file. */
Ref<Image> loadPFM(const FileName& fileName);
/*! Loads image from PNG file. */
Ref<Image> loadPNG(const FileName& fileName);
/*! Loads image from PPM file. */
Ref<Image> loadPPM(const FileName& fileName);
/*! Loads image from TGA file. */
Ref<Image> loadTGA(const FileName& fileName);
/*! Loads image from TIFF file. */
//Ref<Image> loadTIFF(const FileName& fileName);
/*! Store image to file. Format is auto detected. */
void storeImage(const Ref<Image>& image, const FileName& filename);
/*! Store image to JPEG file. */
void storeJPEG(const Ref<Image>& img, const FileName& fileName);
/*! Store image to file using OpenImageIO. */
void storeOIIO(const Ref<Image>& img, const FileName& fileName);
/*! Store image to PFM file. */
void storePFM(const Ref<Image>& img, const FileName& fileName);
/*! Store image to PNG file. */
//void storePNG(const Ref<Image>& img, const FileName& fileName);
/*! Store image to PPM file. */
void storePPM(const Ref<Image>& img, const FileName& fileName);
/*! Store image to TGA file. */
void storeTga(const Ref<Image>& img, const FileName& fileName);
/*! Store image to TIFF file. */
//void storeTIFF(const Ref<Image>& img, const FileName& fileName);
}
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