shithub: rgbds

ref: 3bd60785373ddb2d9c201c92933271a12a177ba1
dir: /include/gfx/main.hpp/

/*
 * This file is part of RGBDS.
 *
 * Copyright (c) 2022, Eldred Habert and RGBDS contributors.
 *
 * SPDX-License-Identifier: MIT
 */

#ifndef RGBDS_GFX_MAIN_HPP
#define RGBDS_GFX_MAIN_HPP

#include <array>
#include <filesystem>
#include <limits.h>
#include <stdint.h>
#include <vector>

#include "helpers.h"

#include "gfx/rgba.hpp"

struct Options {
	bool beVerbose = false; // -v
	bool fixInput = false; // -f
	bool columnMajor = false; // -Z, previously -h
	bool allowMirroring = false; // -m
	bool allowDedup = false; // -u
	bool useColorCurve = false; // -C
	uint8_t bitDepth = 2; // -d
	uint64_t trim = 0; // -x
	uint8_t nbPalettes = 8; // -n
	uint8_t nbColorsPerPal = 0; // -s; 0 means "auto" = 1 << bitDepth;
	enum {
		NO_SPEC,
		EXPLICIT,
		EMBEDDED,
	} palSpecType = NO_SPEC; // -c
	std::vector<std::array<Rgba, 4>> palSpec{};
	std::array<uint16_t, 2> unitSize{1, 1}; // -u (in tiles)
	std::array<uint32_t, 4> inputSlice; // -L
	std::array<uint8_t, 2> baseTileIDs{0, 0}; // -b
	std::array<uint16_t, 2> maxNbTiles{UINT16_MAX, 0}; // -N
	std::filesystem::path tilemap{}; // -t, -T
	std::filesystem::path attrmap{}; // -a, -A
	std::filesystem::path palettes{}; // -p, -P
	std::filesystem::path output{}; // -o
	std::filesystem::path input{}; // positional arg

	format_(printf, 2, 3) void verbosePrint(char const *fmt, ...) const;
	uint8_t maxPalSize() const {
		return nbColorsPerPal; // TODO: minus 1 when transparency is active
	}
};

extern Options options;

void warning(char const *fmt, ...);
void error(char const *fmt, ...);
[[noreturn]] void fatal(char const *fmt, ...);

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;
};

#endif /* RGBDS_GFX_MAIN_HPP */