ares-openbsd/nall/image.hpp

195 行
6.5 KiB
C++

#pragma once
#include <algorithm>
#include <nall/file-map.hpp>
#include <nall/interpolation.hpp>
#include <nall/stdint.hpp>
#include <nall/decode/bmp.hpp>
#include <nall/decode/png.hpp>
namespace nall {
struct image {
enum class blend : u32 {
add,
sourceAlpha, //color = sourceColor * sourceAlpha + targetColor * (1 - sourceAlpha)
sourceColor, //color = sourceColor
targetAlpha, //color = targetColor * targetAlpha + sourceColor * (1 - targetAlpha)
targetColor, //color = targetColor
};
struct channel {
channel(u64 mask, u32 depth, u32 shift) : _mask(mask), _depth(depth), _shift(shift) {
}
auto operator==(const channel& source) const -> bool {
return _mask == source._mask && _depth == source._depth && _shift == source._shift;
}
auto operator!=(const channel& source) const -> bool {
return !operator==(source);
}
auto mask() const { return _mask; }
auto depth() const { return _depth; }
auto shift() const { return _shift; }
private:
u64 _mask;
u32 _depth;
u32 _shift;
};
//core.hpp
image(const image& source);
image(image&& source);
image(bool endian, u32 depth, u64 alphaMask, u64 redMask, u64 greenMask, u64 blueMask);
image(const string& filename);
image(const void* data, u32 size);
image(const vector<u8>& buffer);
template<u32 Size> image(const u8 (&Name)[Size]);
image();
~image();
auto operator=(const image& source) -> image&;
auto operator=(image&& source) -> image&;
explicit operator bool() const;
auto operator==(const image& source) const -> bool;
auto operator!=(const image& source) const -> bool;
auto read(const u8* data) const -> u64;
auto write(u8* data, u64 value) const -> void;
auto free() -> void;
auto load(const string& filename) -> bool;
auto copy(const void* data, u32 pitch, u32 width, u32 height) -> void;
auto allocate(u32 width, u32 height) -> void;
//fill.hpp
auto fill(u64 color = 0) -> void;
auto gradient(u64 a, u64 b, u64 c, u64 d) -> void;
auto gradient(u64 a, u64 b, s32 radiusX, s32 radiusY, s32 centerX, s32 centerY, function<f64 (f64, f64)> callback) -> void;
auto crossGradient(u64 a, u64 b, s32 radiusX, s32 radiusY, s32 centerX, s32 centerY) -> void;
auto diamondGradient(u64 a, u64 b, s32 radiusX, s32 radiusY, s32 centerX, s32 centerY) -> void;
auto horizontalGradient(u64 a, u64 b, s32 radiusX, s32 radiusY, s32 centerX, s32 centerY) -> void;
auto radialGradient(u64 a, u64 b, s32 radiusX, s32 radiusY, s32 centerX, s32 centerY) -> void;
auto sphericalGradient(u64 a, u64 b, s32 radiusX, s32 radiusY, s32 centerX, s32 centerY) -> void;
auto squareGradient(u64 a, u64 b, s32 radiusX, s32 radiusY, s32 centerX, s32 centerY) -> void;
auto verticalGradient(u64 a, u64 b, s32 radiusX, s32 radiusY, s32 centerX, s32 centerY) -> void;
//scale.hpp
auto scale(u32 width, u32 height, bool linear = true) -> void;
//blend.hpp
auto impose(blend mode, u32 targetX, u32 targetY, image source, u32 x, u32 y, u32 width, u32 height) -> void;
//utility.hpp
auto shrink(u64 transparentColor = 0) -> void;
auto crop(u32 x, u32 y, u32 width, u32 height) -> bool;
auto alphaBlend(u64 alphaColor) -> void;
auto alphaMultiply() -> void;
auto transform(const image& source = {}) -> void;
auto transform(bool endian, u32 depth, u64 alphaMask, u64 redMask, u64 greenMask, u64 blueMask) -> void;
//static.hpp
static auto bitDepth(u64 color) -> u32;
static auto bitShift(u64 color) -> u32;
static auto normalize(u64 color, u32 sourceDepth, u32 targetDepth) -> u64;
//access
auto data() { return _data; }
auto data() const { return _data; }
auto width() const { return _width; }
auto height() const { return _height; }
auto endian() const { return _endian; }
auto depth() const { return _depth; }
auto stride() const { return (_depth + 7) >> 3; }
auto pitch() const { return _width * stride(); }
auto size() const { return _height * pitch(); }
auto alpha() const { return _alpha; }
auto red() const { return _red; }
auto green() const { return _green; }
auto blue() const { return _blue; }
private:
//core.hpp
auto allocate(u32 width, u32 height, u32 stride) -> u8*;
//scale.hpp
auto scaleLinearWidth(u32 width) -> void;
auto scaleLinearHeight(u32 height) -> void;
auto scaleLinear(u32 width, u32 height) -> void;
auto scaleNearest(u32 width, u32 height) -> void;
//load.hpp
auto loadBMP(const string& filename) -> bool;
auto loadBMP(const u8* data, u32 size) -> bool;
auto loadPNG(const string& filename) -> bool;
auto loadPNG(const u8* data, u32 size) -> bool;
//interpolation.hpp
auto isplit(u64* component, u64 color) -> void;
auto imerge(const u64* component) -> u64;
auto interpolate1f(u64 a, u64 b, f64 x) -> u64;
auto interpolate1f(u64 a, u64 b, u64 c, u64 d, f64 x, f64 y) -> u64;
auto interpolate1i(s64 a, s64 b, u32 x) -> u64;
auto interpolate1i(s64 a, s64 b, s64 c, s64 d, u32 x, u32 y) -> u64;
auto interpolate4f(u64 a, u64 b, f64 x) -> u64;
auto interpolate4f(u64 a, u64 b, u64 c, u64 d, f64 x, f64 y) -> u64;
auto interpolate4i(u64 a, u64 b, u32 x) -> u64;
auto interpolate4i(u64 a, u64 b, u64 c, u64 d, u32 x, u32 y) -> u64;
u8* _data = nullptr;
u32 _width = 0;
u32 _height = 0;
bool _endian = 0; //0 = lsb, 1 = msb
u32 _depth = 32;
channel _alpha{255u << 24, 8, 24};
channel _red {255u << 16, 8, 16};
channel _green{255u << 8, 8, 8};
channel _blue {255u << 0, 8, 0};
};
struct multiFactorImage : public image {
using image::image;
multiFactorImage(const multiFactorImage& source);
multiFactorImage(multiFactorImage&& source);
multiFactorImage(const image& lowDPI, const image& highDPI);
multiFactorImage(const image& source);
multiFactorImage(image&& source);
multiFactorImage();
~multiFactorImage();
auto operator=(const multiFactorImage& source) -> multiFactorImage&;
auto operator=(multiFactorImage&& source) -> multiFactorImage&;
auto operator==(const multiFactorImage& source) const -> bool;
auto operator!=(const multiFactorImage& source) const -> bool;
const image& lowDPI() const { return *this; }
const image& highDPI() const { return _highDPI; }
private:
image _highDPI;
};
}
#include <nall/image/static.hpp>
#include <nall/image/core.hpp>
#include <nall/image/load.hpp>
#include <nall/image/interpolation.hpp>
#include <nall/image/fill.hpp>
#include <nall/image/scale.hpp>
#include <nall/image/blend.hpp>
#include <nall/image/utility.hpp>
#include <nall/image/multifactor.hpp>