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Conversion to signed

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This commit is contained in:
Ian Gulliver
2017-08-12 11:46:05 -07:00
parent 566c60d91a
commit ed6ae66171
11 changed files with 233 additions and 190 deletions
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31
color.h
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@@ -1,56 +1,55 @@
#pragma once
#include <array>
#include <cstdint>
#include <iomanip>
#include <iostream>
#include "array.h"
#include "intmath.h"
constexpr int32_t kMinColor = 0;
constexpr int32_t kMaxColor = UINT16_MAX;
// 32-bit for compiler convenience, but values are 16-bit
template <uint32_t C>
struct Color : public std::array<int32_t, C> {
constexpr uint32_t AbsDiff(const Color<C>& other) const;
template <int32_t C>
struct Color : public Array<int32_t, C> {
constexpr int32_t AbsDiff(const Color<C>& other) const;
constexpr Color<C> Interpolate(const Color<C>& other, int32_t mul, int32_t div) const;
constexpr Color<C> Crop() const;
};
struct RgbColor : public Color<3> {};
template <uint32_t C>
constexpr uint32_t Color<C>::AbsDiff(const Color<C>& other) const {
uint32_t diff = 0;
for (uint32_t c = 0; c < C; ++c) {
diff += static_cast<uint32_t>(::AbsDiff(this->at(c), other.at(c)));
template <int32_t C>
constexpr int32_t Color<C>::AbsDiff(const Color<C>& other) const {
int32_t diff = 0;
for (int32_t c = 0; c < C; ++c) {
diff += ::AbsDiff(this->at(c), other.at(c));
}
return diff;
}
template <uint32_t C>
template <int32_t C>
constexpr Color<C> Color<C>::Interpolate(const Color<C>& other, int32_t mul, int32_t div) const {
Color<C> ret;
for (uint32_t c = 0; c < C; ++c) {
for (int32_t c = 0; c < C; ++c) {
ret.at(c) = ::Interpolate(this->at(c), other.at(c), mul, div);
}
return ret;
}
template <uint32_t C>
template <int32_t C>
constexpr Color<C> Color<C>::Crop() const {
Color<C> ret;
for (uint32_t c = 0; c < C; ++c) {
for (int32_t c = 0; c < C; ++c) {
ret.at(c) = std::max(kMinColor, std::min(kMaxColor, this->at(c)));
}
return ret;
}
template <uint32_t C>
template <int32_t C>
std::ostream& operator<<(std::ostream& os, const Color<C>& color) {
os << std::hex << std::setfill('0') << "Color(";
for (uint32_t c = 0; c < C; ++c) {
for (int32_t c = 0; c < C; ++c) {
os << "0x" << std::setw(4) << color.at(0);
if (c < C - 1) {
os << ", ";