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/* SPDX-FileCopyrightText: Copyright (C) 2025 ZeldaRET */
/* SPDX-License-Identifier: MIT */
#ifndef N64TEXCONV_H
#define N64TEXCONV_H
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#define FMT_NONE -1
#define FMT_MAX 5
#define G_IM_FMT_RGBA 0
#define G_IM_FMT_YUV 1
#define G_IM_FMT_CI 2
#define G_IM_FMT_IA 3
#define G_IM_FMT_I 4
#define SIZ_NONE -1
#define SIZ_MAX 4
#define G_IM_SIZ_4b 0
#define G_IM_SIZ_8b 1
#define G_IM_SIZ_16b 2
#define G_IM_SIZ_32b 3
struct color {
union {
struct {
uint8_t r, g, b, a;
};
uint32_t w;
};
};
static inline __attribute__((always_inline)) size_t
texel_size_bytes(size_t ntexels, int siz)
{
return (siz == G_IM_SIZ_4b) ? (ntexels / 2) : (ntexels * ((1 << (unsigned)siz) >> 1));
}
struct n64_palette {
struct color *texels;
int fmt;
size_t count;
};
struct n64_palette *
n64texconv_palette_new(size_t count, int fmt);
void
n64texconv_palette_free(struct n64_palette *pal);
struct n64_palette *
n64texconv_palette_copy(struct n64_palette *pal);
struct n64_palette *
n64texconv_palette_reformat(struct n64_palette *pal, int fmt);
struct n64_palette *
n64texconv_palette_resize(struct n64_palette *pal, size_t new_count);
struct n64_palette *
n64texconv_palette_from_png(const char *path, int fmt);
struct n64_palette *
n64texconv_palette_from_bin(void *data, size_t count, int fmt);
int
n64texconv_palette_to_png(const char *outpath, struct n64_palette *pal);
void *
n64texconv_palette_to_bin(struct n64_palette *pal, bool pad_to_8b);
int
n64texconv_palette_to_c(char **out, size_t *size_out, struct n64_palette *pal, bool pad_to_8b, unsigned int byte_width);
int
n64texconv_palette_to_c_file(const char *out_path, struct n64_palette *pal, bool pad_to_8b, unsigned int byte_width);
struct n64_image {
size_t width;
size_t height;
int fmt;
int siz;
struct n64_palette *pal;
struct color *texels;
uint8_t *color_indices;
};
struct n64_image *
n64texconv_image_new(size_t width, size_t height, int fmt, int siz, struct n64_palette *pal);
void
n64texconv_image_free(struct n64_image *img);
struct n64_image *
n64texconv_image_copy(struct n64_image *img);
struct n64_image *
n64texconv_image_from_png(const char *path, int fmt, int siz, int pal_fmt);
struct n64_image *
n64texconv_image_from_bin(void *data, size_t width, size_t height, int fmt, int siz, struct n64_palette *pal,
bool preswapped);
struct n64_image *
n64texconv_image_reformat(struct n64_image *img, int fmt, int siz, struct n64_palette *pal);
int
n64texconv_image_to_png(const char *outpath, struct n64_image *img, bool intensity_alpha);
void *
n64texconv_image_to_bin(struct n64_image *img, bool pad_to_8b, bool preswap);
int
n64texconv_image_to_c(char **out, size_t *size_out, struct n64_image *img, bool pad_to_8b, bool preswap,
unsigned int byte_width);
int
n64texconv_image_to_c_file(const char *out_path, struct n64_image *img, bool pad_to_8b, bool preswap,
unsigned int byte_width);
const char *
n64texconv_png_extension(struct n64_image *img);
int
n64texconv_quantize_shared(uint8_t **out_indices, struct color *out_pal, size_t *out_pal_count, struct color **texels,
size_t *widths, size_t *heights, size_t num_images, unsigned int max_colors,
float dither_level, int pal_fmt);
#endif
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