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Move struct Palette into its own file (#1850)

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This commit is contained in:
Rangi
2025-10-20 16:59:24 -04:00
committed by GitHub
parent 2873e0b8c8
commit 7462bccb72
11 changed files with 114 additions and 79 deletions
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23
include/gfx/flip.hpp Normal file
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@@ -0,0 +1,23 @@
// SPDX-License-Identifier: MIT
#ifndef RGBDS_GFX_FLIP_HPP
#define RGBDS_GFX_FLIP_HPP
#include <array>
#include <stdint.h>
// Flipping tends to happen fairly often, so take a bite out of dcache to speed it up
static std::array<uint16_t, 256> flipTable = ([]() constexpr {
std::array<uint16_t, 256> table{};
for (uint16_t i = 0; i < table.size(); ++i) {
// To flip all the bits, we'll flip both nibbles, then each nibble half, etc.
uint16_t byte = i;
byte = (byte & 0b0000'1111) << 4 | (byte & 0b1111'0000) >> 4;
byte = (byte & 0b0011'0011) << 2 | (byte & 0b1100'1100) >> 2;
byte = (byte & 0b0101'0101) << 1 | (byte & 0b1010'1010) >> 1;
table[i] = byte;
}
return table;
})();
#endif // RGBDS_GFX_FLIP_HPP

34
include/gfx/main.hpp
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@@ -5,12 +5,11 @@
#include <array>
#include <optional>
#include <stddef.h>
#include <stdint.h>
#include <string>
#include <vector>
#include "helpers.hpp"
#include "helpers.hpp" // assume
#include "gfx/rgba.hpp"
@@ -69,35 +68,4 @@ struct Options {
extern Options options;
struct Palette {
// An array of 4 GBC-native (RGB555) colors
std::array<uint16_t, 4> colors{UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX};
void addColor(uint16_t color);
uint8_t indexOf(uint16_t color) const;
uint16_t &operator[](size_t index) { return colors[index]; }
uint16_t const &operator[](size_t index) const { return colors[index]; }
decltype(colors)::iterator begin();
decltype(colors)::iterator end();
decltype(colors)::const_iterator begin() const;
decltype(colors)::const_iterator end() const;
uint8_t size() const;
};
// Flipping tends to happen fairly often, so take a bite out of dcache to speed it up
static std::array<uint16_t, 256> flipTable = ([]() constexpr {
std::array<uint16_t, 256> table{};
for (uint16_t i = 0; i < table.size(); ++i) {
// To flip all the bits, we'll flip both nibbles, then each nibble half, etc.
uint16_t byte = i;
byte = (byte & 0b0000'1111) << 4 | (byte & 0b1111'0000) >> 4;
byte = (byte & 0b0011'0011) << 2 | (byte & 0b1100'1100) >> 2;
byte = (byte & 0b0101'0101) << 1 | (byte & 0b1010'1010) >> 1;
table[i] = byte;
}
return table;
})();
#endif // RGBDS_GFX_MAIN_HPP

27
include/gfx/palette.hpp Normal file
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@@ -0,0 +1,27 @@
// SPDX-License-Identifier: MIT
#ifndef RGBDS_GFX_PALETTE_HPP
#define RGBDS_GFX_PALETTE_HPP
#include <array>
#include <stddef.h>
#include <stdint.h>
struct Palette {
// An array of 4 GBC-native (RGB555) colors
std::array<uint16_t, 4> colors{UINT16_MAX, UINT16_MAX, UINT16_MAX, UINT16_MAX};
void addColor(uint16_t color);
uint8_t indexOf(uint16_t color) const;
uint16_t &operator[](size_t index) { return colors[index]; }
uint16_t const &operator[](size_t index) const { return colors[index]; }
decltype(colors)::iterator begin();
decltype(colors)::iterator end();
decltype(colors)::const_iterator begin() const;
decltype(colors)::const_iterator end() const;
uint8_t size() const;
};
#endif // RGBDS_GFX_PALETTE_HPP