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sm64pc/tools/n64graphics.c

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#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#define STBI_NO_LINEAR
#define STBI_NO_HDR
#define STBI_NO_TGA
#define STB_IMAGE_IMPLEMENTATION
#include <stb/stb_image.h>
#define STB_IMAGE_WRITE_IMPLEMENTATION
#include <stb/stb_image_write.h>
#include "n64graphics.h"
#include "utils.h"
// SCALE_M_N: upscale/downscale M-bit integer to N-bit
#define SCALE_5_8(VAL_) (((VAL_) * 0xFF) / 0x1F)
#define SCALE_8_5(VAL_) ((((VAL_) + 4) * 0x1F) / 0xFF)
#define SCALE_4_8(VAL_) ((VAL_) * 0x11)
#define SCALE_8_4(VAL_) ((VAL_) / 0x11)
#define SCALE_3_8(VAL_) ((VAL_) * 0x24)
#define SCALE_8_3(VAL_) ((VAL_) / 0x24)
typedef struct
{
enum
{
IMG_FORMAT_RGBA,
IMG_FORMAT_IA,
IMG_FORMAT_I,
IMG_FORMAT_CI,
} format;
int depth;
} img_format;
//---------------------------------------------------------
// N64 RGBA/IA/I/CI -> internal RGBA/IA
//---------------------------------------------------------
rgba *raw2rgba(const uint8_t *raw, int width, int height, int depth)
{
rgba *img;
int img_size;
img_size = width * height * sizeof(*img);
img = malloc(img_size);
if (!img) {
ERROR("Error allocating %d bytes\n", img_size);
return NULL;
}
if (depth == 16) {
for (int i = 0; i < width * height; i++) {
img[i].red = SCALE_5_8((raw[i*2] & 0xF8) >> 3);
img[i].green = SCALE_5_8(((raw[i*2] & 0x07) << 2) | ((raw[i*2+1] & 0xC0) >> 6));
img[i].blue = SCALE_5_8((raw[i*2+1] & 0x3E) >> 1);
img[i].alpha = (raw[i*2+1] & 0x01) ? 0xFF : 0x00;
}
} else if (depth == 32) {
for (int i = 0; i < width * height; i++) {
img[i].red = raw[i*4];
img[i].green = raw[i*4+1];
img[i].blue = raw[i*4+2];
img[i].alpha = raw[i*4+3];
}
}
return img;
}
ia *raw2ia(const uint8_t *raw, int width, int height, int depth)
{
ia *img;
int img_size;
img_size = width * height * sizeof(*img);
img = malloc(img_size);
if (!img) {
ERROR("Error allocating %u bytes\n", img_size);
return NULL;
}
switch (depth) {
case 16:
for (int i = 0; i < width * height; i++) {
img[i].intensity = raw[i*2];
img[i].alpha = raw[i*2+1];
}
break;
case 8:
for (int i = 0; i < width * height; i++) {
img[i].intensity = SCALE_4_8((raw[i] & 0xF0) >> 4);
img[i].alpha = SCALE_4_8(raw[i] & 0x0F);
}
break;
case 4:
for (int i = 0; i < width * height; i++) {
uint8_t bits;
bits = raw[i/2];
if (i % 2) {
bits &= 0xF;
} else {
bits >>= 4;
}
img[i].intensity = SCALE_3_8((bits >> 1) & 0x07);
img[i].alpha = (bits & 0x01) ? 0xFF : 0x00;
}
break;
case 1:
for (int i = 0; i < width * height; i++) {
uint8_t bits;
uint8_t mask;
bits = raw[i/8];
mask = 1 << (7 - (i % 8)); // MSb->LSb
bits = (bits & mask) ? 0xFF : 0x00;
img[i].intensity = bits;
img[i].alpha = bits;
}
break;
default:
ERROR("Error invalid depth %d\n", depth);
break;
}
return img;
}
ia *raw2i(const uint8_t *raw, int width, int height, int depth)
{
ia *img = NULL;
int img_size;
img_size = width * height * sizeof(*img);
img = malloc(img_size);
if (!img) {
ERROR("Error allocating %u bytes\n", img_size);
return NULL;
}
switch (depth) {
case 8:
for (int i = 0; i < width * height; i++) {
img[i].intensity = raw[i];
img[i].alpha = 0xFF;
}
break;
case 4:
for (int i = 0; i < width * height; i++) {
uint8_t bits;
bits = raw[i/2];
if (i % 2) {
bits &= 0xF;
} else {
bits >>= 4;
}
img[i].intensity = SCALE_4_8(bits);
img[i].alpha = img[i].intensity; // alpha copy intensity
// TODO: modes
// img[i].alpha = 0xFF; // alpha = 1
// img[i].alpha = img[i].intensity ? 0xFF : 0x00; // binary
}
break;
default:
ERROR("Error invalid depth %d\n", depth);
break;
}
return img;
}
// convert CI raw data and palette to raw data (either RGBA16 or IA16)
uint8_t *ci2raw(const uint8_t *rawci, const uint8_t *palette, int width, int height, int ci_depth)
{
uint8_t *raw;
int raw_size;
// first convert to raw RGBA
raw_size = sizeof(uint16_t) * width * height;
raw = malloc(raw_size);
if (!raw) {
ERROR("Error allocating %u bytes\n", raw_size);
return NULL;
}
for (int i = 0; i < width * height; i++) {
int pal_idx = rawci[i];
if (ci_depth == 4) {
int byte_idx = i / 2;
int nibble = 1 - (i % 2);
int shift = 4 * nibble;
pal_idx = (rawci[byte_idx] >> shift) & 0xF;
}
raw[2*i] = palette[2*pal_idx];
raw[2*i+1] = palette[2*pal_idx+1];
}
return raw;
}
//---------------------------------------------------------
// internal RGBA/IA -> N64 RGBA/IA/I/CI
// returns length written to 'raw' used or -1 on error
//---------------------------------------------------------
int rgba2raw(uint8_t *raw, const rgba *img, int width, int height, int depth)
{
int size = (width * height * depth + 7) / 8;
INFO("Converting RGBA%d %dx%d to raw\n", depth, width, height);
if (depth == 16) {
for (int i = 0; i < width * height; i++) {
uint8_t r, g, b, a;
r = SCALE_8_5(img[i].red);
g = SCALE_8_5(img[i].green);
b = SCALE_8_5(img[i].blue);
a = img[i].alpha ? 0x1 : 0x0;
raw[i*2] = (r << 3) | (g >> 2);
raw[i*2+1] = ((g & 0x3) << 6) | (b << 1) | a;
}
} else if (depth == 32) {
for (int i = 0; i < width * height; i++) {
raw[i*4] = img[i].red;
raw[i*4+1] = img[i].green;
raw[i*4+2] = img[i].blue;
raw[i*4+3] = img[i].alpha;
}
} else {
ERROR("Error invalid depth %d\n", depth);
size = -1;
}
return size;
}
int ia2raw(uint8_t *raw, const ia *img, int width, int height, int depth)
{
int size = (width * height * depth + 7) / 8;
INFO("Converting IA%d %dx%d to raw\n", depth, width, height);
switch (depth) {
case 16:
for (int i = 0; i < width * height; i++) {
raw[i*2] = img[i].intensity;
raw[i*2+1] = img[i].alpha;
}
break;
case 8:
for (int i = 0; i < width * height; i++) {
uint8_t val = SCALE_8_4(img[i].intensity);
uint8_t alpha = SCALE_8_4(img[i].alpha);
raw[i] = (val << 4) | alpha;
}
break;
case 4:
for (int i = 0; i < width * height; i++) {
uint8_t val = SCALE_8_3(img[i].intensity);
uint8_t alpha = img[i].alpha ? 0x01 : 0x00;
uint8_t old = raw[i/2];
if (i % 2) {
raw[i/2] = (old & 0xF0) | (val << 1) | alpha;
} else {
raw[i/2] = (old & 0x0F) | (((val << 1) | alpha) << 4);
}
}
break;
case 1:
for (int i = 0; i < width * height; i++) {
uint8_t val = img[i].intensity;
uint8_t old = raw[i/8];
uint8_t bit = 1 << (7 - (i % 8));
if (val) {
raw[i/8] = old | bit;
} else {
raw[i/8] = old & (~bit);
}
}
break;
default:
ERROR("Error invalid depth %d\n", depth);
size = -1;
break;
}
return size;
}
int i2raw(uint8_t *raw, const ia *img, int width, int height, int depth)
{
int size = (width * height * depth + 7) / 8;
INFO("Converting I%d %dx%d to raw\n", depth, width, height);
switch (depth) {
case 8:
for (int i = 0; i < width * height; i++) {
raw[i] = img[i].intensity;
}
break;
case 4:
for (int i = 0; i < width * height; i++) {
uint8_t val = SCALE_8_4(img[i].intensity);
uint8_t old = raw[i/2];
if (i % 2) {
raw[i/2] = (old & 0xF0) | val;
} else {
raw[i/2] = (old & 0x0F) | (val << 4);
}
}
break;
default:
ERROR("Error invalid depth %d\n", depth);
size = -1;
break;
}
return size;
}
//---------------------------------------------------------
// internal RGBA/IA -> PNG
//---------------------------------------------------------
int rgba2png(const char *png_filename, const rgba *img, int width, int height)
{
int ret = 0;
INFO("Saving RGBA %dx%d to \"%s\"\n", width, height, png_filename);
// convert to format stb_image_write expects
uint8_t *data = malloc(4*width*height);
if (data) {
for (int j = 0; j < height; j++) {
for (int i = 0; i < width; i++) {
int idx = j*width + i;
data[4*idx] = img[idx].red;
data[4*idx + 1] = img[idx].green;
data[4*idx + 2] = img[idx].blue;
data[4*idx + 3] = img[idx].alpha;
}
}
ret = stbi_write_png(png_filename, width, height, 4, data, 0);
free(data);
}
return ret;
}
int ia2png(const char *png_filename, const ia *img, int width, int height)
{
int ret = 0;
INFO("Saving IA %dx%d to \"%s\"\n", width, height, png_filename);
// convert to format stb_image_write expects
uint8_t *data = malloc(2*width*height);
if (data) {
for (int j = 0; j < height; j++) {
for (int i = 0; i < width; i++) {
int idx = j*width + i;
data[2*idx] = img[idx].intensity;
data[2*idx + 1] = img[idx].alpha;
}
}
ret = stbi_write_png(png_filename, width, height, 2, data, 0);
free(data);
}
return ret;
}
//---------------------------------------------------------
// PNG -> internal RGBA/IA
//---------------------------------------------------------
rgba *png2rgba(const char *png_filename, int *width, int *height)
{
rgba *img = NULL;
int w = 0;
int h = 0;
int channels = 0;
int img_size;
stbi_uc *data = stbi_load(png_filename, &w, &h, &channels, STBI_default);
if (!data || w <= 0 || h <= 0) {
ERROR("Error loading \"%s\"\n", png_filename);
return NULL;
}
INFO("Read \"%s\" %dx%d channels: %d\n", png_filename, w, h, channels);
img_size = w * h * sizeof(*img);
img = malloc(img_size);
if (!img) {
ERROR("Error allocating %u bytes\n", img_size);
return NULL;
}
switch (channels) {
case 3: // red, green, blue
case 4: // red, green, blue, alpha
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
int idx = j*w + i;
img[idx].red = data[channels*idx];
img[idx].green = data[channels*idx + 1];
img[idx].blue = data[channels*idx + 2];
if (channels == 4) {
img[idx].alpha = data[channels*idx + 3];
} else {
img[idx].alpha = 0xFF;
}
}
}
break;
case 2: // grey, alpha
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
int idx = j*w + i;
img[idx].red = data[2*idx];
img[idx].green = data[2*idx];
img[idx].blue = data[2*idx];
img[idx].alpha = data[2*idx + 1];
}
}
break;
default:
ERROR("Don't know how to read channels: %d\n", channels);
free(img);
img = NULL;
}
// cleanup
stbi_image_free(data);
*width = w;
*height = h;
return img;
}
ia *png2ia(const char *png_filename, int *width, int *height)
{
ia *img = NULL;
int w = 0, h = 0;
int channels = 0;
int img_size;
stbi_uc *data = stbi_load(png_filename, &w, &h, &channels, STBI_default);
if (!data || w <= 0 || h <= 0) {
ERROR("Error loading \"%s\"\n", png_filename);
return NULL;
}
INFO("Read \"%s\" %dx%d channels: %d\n", png_filename, w, h, channels);
img_size = w * h * sizeof(*img);
img = malloc(img_size);
if (!img) {
ERROR("Error allocating %d bytes\n", img_size);
return NULL;
}
switch (channels) {
case 3: // red, green, blue
case 4: // red, green, blue, alpha
ERROR("Warning: averaging RGB PNG to create IA\n");
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
int idx = j*w + i;
int sum = data[channels*idx] + data[channels*idx + 1] + data[channels*idx + 2];
img[idx].intensity = (sum + 1) / 3; // add 1 to round up where appropriate
if (channels == 4) {
img[idx].alpha = data[channels*idx + 3];
} else {
img[idx].alpha = 0xFF;
}
}
}
break;
case 2: // grey, alpha
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
int idx = j*w + i;
img[idx].intensity = data[2*idx];
img[idx].alpha = data[2*idx + 1];
}
}
break;
default:
ERROR("Don't know how to read channels: %d\n", channels);
free(img);
img = NULL;
}
// cleanup
stbi_image_free(data);
*width = w;
*height = h;
return img;
}
// find index of palette color
// return -1 if not found
static int pal_find_color(const palette_t *pal, uint16_t val)
{
for (int i = 0; i < pal->used; i++) {
if (pal->data[i] == val) {
return i;
}
}
return -1;
}
// find value in palette, or add if not there
// returns palette index entered or -1 if palette full
static int pal_add_color(palette_t *pal, uint16_t val)
{
int idx;
idx = pal_find_color(pal, val);
if (idx < 0) {
if (pal->used == pal->max) {
ERROR("Error: trying to use more than %d\n", pal->max);
} else {
idx = pal->used;
pal->data[pal->used] = val;
pal->used++;
}
}
return idx;
}
// convert from raw (RGBA16 or IA16) format to CI + palette
// returns 1 on success
int raw2ci(uint8_t *rawci, palette_t *pal, const uint8_t *raw, int raw_len, int ci_depth)
{
// assign colors to palette
pal->used = 0;
memset(pal->data, 0, sizeof(pal->data));
int ci_idx = 0;
for (int i = 0; i < raw_len; i += sizeof(uint16_t)) {
uint16_t val = read_u16_be(&raw[i]);
int pal_idx = pal_add_color(pal, val);
if (pal_idx < 0) {
ERROR("Error adding color @ (%d): %d (used: %d/%d)\n", i, pal_idx, pal->used, pal->max);
return 0;
} else {
switch (ci_depth) {
case 8:
rawci[ci_idx] = (uint8_t)pal_idx;
break;
case 4:
{
int byte_idx = ci_idx / 2;
int nibble = 1 - (ci_idx % 2);
uint8_t mask = 0xF << (4 * (1 - nibble));
rawci[byte_idx] = (rawci[byte_idx] & mask) | (pal_idx << (4 * nibble));
break;
}
}
ci_idx++;
}
}
return 1;
}
const char *n64graphics_get_read_version(void)
{
return "stb_image 2.19";
}
const char *n64graphics_get_write_version(void)
{
return "stb_image_write 1.09";
}
#ifdef N64GRAPHICS_STANDALONE
#define N64GRAPHICS_VERSION "0.4"
#include <string.h>
typedef enum
{
MODE_EXPORT,
MODE_IMPORT,
} tool_mode;
typedef struct
{
char *img_filename;
char *bin_filename;
char *pal_filename;
tool_mode mode;
unsigned int bin_offset;
unsigned int pal_offset;
img_format format;
img_format pal_format;
int width;
int height;
int bin_truncate;
int pal_truncate;
} graphics_config;
static const graphics_config default_config =
{
.img_filename = NULL,
.bin_filename = NULL,
.pal_filename = NULL,
.mode = MODE_EXPORT,
.bin_offset = 0,
.pal_offset = 0,
.format = {IMG_FORMAT_RGBA, 16},
.pal_format = {IMG_FORMAT_RGBA, 16},
.width = 32,
.height = 32,
.bin_truncate = 1,
.pal_truncate = 1,
};
typedef struct
{
const char *name;
img_format format;
} format_entry;
static const format_entry format_table[] =
{
{"rgba16", {IMG_FORMAT_RGBA, 16}},
{"rgba32", {IMG_FORMAT_RGBA, 32}},
{"ia1", {IMG_FORMAT_IA, 1}},
{"ia4", {IMG_FORMAT_IA, 4}},
{"ia8", {IMG_FORMAT_IA, 8}},
{"ia16", {IMG_FORMAT_IA, 16}},
{"i4", {IMG_FORMAT_I, 4}},
{"i8", {IMG_FORMAT_I, 8}},
{"ci8", {IMG_FORMAT_CI, 8}},
{"ci4", {IMG_FORMAT_CI, 4}},
};
static const char *format2str(const img_format *format)
{
for (unsigned i = 0; i < DIM(format_table); i++) {
if (format->format == format_table[i].format.format && format->depth == format_table[i].format.depth) {
return format_table[i].name;
}
}
return "unknown";
}
static int parse_format(img_format *format, const char *str)
{
for (unsigned i = 0; i < DIM(format_table); i++) {
if (!strcasecmp(str, format_table[i].name)) {
format->format = format_table[i].format.format;
format->depth = format_table[i].format.depth;
return 1;
}
}
return 0;
}
static void print_usage(void)
{
ERROR("Usage: n64graphics -e/-i BIN_FILE -g IMG_FILE [-p PAL_FILE] [-o BIN_OFFSET] [-P PAL_OFFSET] [-f FORMAT] [-c CI_FORMAT] [-w WIDTH] [-h HEIGHT] [-V]\n"
"\n"
"n64graphics v" N64GRAPHICS_VERSION ": N64 graphics manipulator\n"
"\n"
"Required arguments:\n"
" -e BIN_FILE export from BIN_FILE to PNG_FILE\n"
" -i BIN_FILE import from PNG_FILE to BIN_FILE\n"
" -g IMG_FILE graphics file to import/export (.png)\n"
"Optional arguments:\n"
" -o BIN_OFFSET starting offset in BIN_FILE (prevents truncation during import)\n"
" -f FORMAT texture format: rgba16, rgba32, ia1, ia4, ia8, ia16, i4, i8, ci4, ci8 (default: %s)\n"
" -w WIDTH export texture width (default: %d)\n"
" -h HEIGHT export texture height (default: %d)\n"
"CI arguments:\n"
" -c CI_FORMAT CI palette format: rgba16, ia16 (default: %s)\n"
" -p PAL_FILE palette binary file to import/export from/to\n"
" -P PAL_OFFSET starting offset in PAL_FILE (prevents truncation during import)\n"
"Other arguments:\n"
" -v verbose logging\n"
" -V print version information\n",
format2str(&default_config.format),
default_config.width,
default_config.height,
format2str(&default_config.pal_format));
}
static void print_version(void)
{
ERROR("n64graphics v" N64GRAPHICS_VERSION ", using:\n"
" %s\n"
" %s\n",
n64graphics_get_read_version(), n64graphics_get_write_version());
}
// parse command line arguments
static int parse_arguments(int argc, char *argv[], graphics_config *config)
{
for (int i = 1; i < argc; i++) {
if (argv[i][0] == '-') {
switch (argv[i][1]) {
case 'c':
if (++i >= argc) return 0;
if (!parse_format(&config->pal_format, argv[i])) {
return 0;
}
break;
case 'e':
if (++i >= argc) return 0;
config->bin_filename = argv[i];
config->mode = MODE_EXPORT;
break;
case 'f':
if (++i >= argc) return 0;
if (!parse_format(&config->format, argv[i])) {
return 0;
}
break;
case 'g':
if (++i >= argc) return 0;
config->img_filename = argv[i];
break;
case 'h':
if (++i >= argc) return 0;
config->height = strtoul(argv[i], NULL, 0);
break;
case 'i':
if (++i >= argc) return 0;
config->bin_filename = argv[i];
config->mode = MODE_IMPORT;
break;
case 'o':
if (++i >= argc) return 0;
config->bin_offset = strtoul(argv[i], NULL, 0);
config->bin_truncate = 0;
break;
case 'p':
if (++i >= argc) return 0;
config->pal_filename = argv[i];
break;
case 'P':
if (++i >= argc) return 0;
config->pal_offset = strtoul(argv[i], NULL, 0);
config->pal_truncate = 0;
break;
case 'v':
g_verbosity = 1;
break;
case 'V':
print_version();
exit(0);
break;
case 'w':
if (++i >= argc) return 0;
config->width = strtoul(argv[i], NULL, 0);
break;
default:
return 0;
break;
}
} else {
return 0;
}
}
return 1;
}
// returns 1 if config is valid
static int valid_config(const graphics_config *config)
{
if (!config->bin_filename || !config->img_filename) {
return 0;
}
if (config->format.format == IMG_FORMAT_CI) {
if (!config->pal_filename || (config->pal_format.depth != 16) ||
(config->pal_format.format != IMG_FORMAT_RGBA && config->pal_format.format != IMG_FORMAT_IA)) {
return 0;
}
}
return 1;
}
int main(int argc, char *argv[])
{
graphics_config config = default_config;
rgba *imgr;
ia *imgi;
FILE *bin_fp;
uint8_t *raw;
int raw_size;
int length = 0;
int flength;
int res;
int valid = parse_arguments(argc, argv, &config);
if (!valid || !valid_config(&config)) {
print_usage();
exit(EXIT_FAILURE);
}
if (config.mode == MODE_IMPORT) {
if (config.bin_truncate) {
bin_fp = fopen(config.bin_filename, "wb");
} else {
bin_fp = fopen(config.bin_filename, "r+b");
}
if (!bin_fp) {
ERROR("Error opening \"%s\"\n", config.bin_filename);
return -1;
}
if (!config.bin_truncate) {
fseek(bin_fp, config.bin_offset, SEEK_SET);
}
switch (config.format.format) {
case IMG_FORMAT_RGBA:
imgr = png2rgba(config.img_filename, &config.width, &config.height);
raw_size = (config.width * config.height * config.format.depth + 7) / 8;
raw = malloc(raw_size);
if (!raw) {
ERROR("Error allocating %u bytes\n", raw_size);
}
length = rgba2raw(raw, imgr, config.width, config.height, config.format.depth);
break;
case IMG_FORMAT_IA:
imgi = png2ia(config.img_filename, &config.width, &config.height);
raw_size = (config.width * config.height * config.format.depth + 7) / 8;
raw = malloc(raw_size);
if (!raw) {
ERROR("Error allocating %u bytes\n", raw_size);
}
length = ia2raw(raw, imgi, config.width, config.height, config.format.depth);
break;
case IMG_FORMAT_I:
imgi = png2ia(config.img_filename, &config.width, &config.height);
raw_size = (config.width * config.height * config.format.depth + 7) / 8;
raw = malloc(raw_size);
if (!raw) {
ERROR("Error allocating %u bytes\n", raw_size);
}
length = i2raw(raw, imgi, config.width, config.height, config.format.depth);
break;
case IMG_FORMAT_CI:
{
palette_t pal;
FILE *pal_fp;
uint8_t *raw16;
int raw16_size;
int raw16_length;
uint8_t *ci;
int ci_length;
int pal_success;
int pal_length;
if (config.pal_truncate) {
pal_fp = fopen(config.pal_filename, "wb");
} else {
pal_fp = fopen(config.pal_filename, "r+b");
}
if (!pal_fp) {
ERROR("Error opening \"%s\"\n", config.pal_filename);
return EXIT_FAILURE;
}
if (!config.pal_truncate) {
fseek(pal_fp, config.bin_offset, SEEK_SET);
}
raw16_size = config.width * config.height * config.pal_format.depth / 8;
raw16 = malloc(raw16_size);
if (!raw16) {
ERROR("Error allocating %d bytes\n", raw16_size);
return EXIT_FAILURE;
}
switch (config.pal_format.format) {
case IMG_FORMAT_RGBA:
imgr = png2rgba(config.img_filename, &config.width, &config.height);
raw16_length = rgba2raw(raw16, imgr, config.width, config.height, config.pal_format.depth);
break;
case IMG_FORMAT_IA:
imgi = png2ia(config.img_filename, &config.width, &config.height);
raw16_length = ia2raw(raw16, imgi, config.width, config.height, config.pal_format.depth);
break;
default:
ERROR("Unsupported palette format: %s\n", format2str(&config.pal_format));
exit(EXIT_FAILURE);
}
// convert raw to palette
pal.max = (1 << config.format.depth);
ci_length = config.width * config.height * config.format.depth / 8;
ci = malloc(ci_length);
pal_success = raw2ci(ci, &pal, raw16, raw16_length, config.format.depth);
if (!pal_success) {
ERROR("Error converting palette\n");
exit(EXIT_FAILURE);
}
pal_length = pal.max * sizeof(pal.data[0]);
INFO("Writing 0x%X bytes to offset 0x%X of \"%s\"\n", pal_length, config.pal_offset, config.pal_filename);
flength = 0;
for (int i = 0; i < pal.max; i++) {
uint8_t entry[2];
write_u16_be(entry, pal.data[i]);
flength += fwrite(entry, 1, sizeof(entry), pal_fp);
}
if (flength != pal_length) {
ERROR("Error writing %d bytes to \"%s\"\n", pal_length, config.pal_filename);
}
raw = ci;
length = ci_length;
free(raw16);
fclose(pal_fp);
break;
}
default:
return EXIT_FAILURE;
}
if (length <= 0) {
ERROR("Error converting to raw format\n");
return EXIT_FAILURE;
}
INFO("Writing 0x%X bytes to offset 0x%X of \"%s\"\n", length, config.bin_offset, config.bin_filename);
flength = fwrite(raw, 1, length, bin_fp);
if (flength != length) {
ERROR("Error writing %d bytes to \"%s\"\n", length, config.bin_filename);
}
fclose(bin_fp);
} else {
if (config.width <= 0 || config.height <= 0 || config.format.depth <= 0) {
ERROR("Error: must set position width and height for export\n");
return EXIT_FAILURE;
}
bin_fp = fopen(config.bin_filename, "rb");
if (!bin_fp) {
ERROR("Error opening \"%s\"\n", config.bin_filename);
return -1;
}
raw_size = (config.width * config.height * config.format.depth + 7) / 8;
raw = malloc(raw_size);
if (config.bin_offset > 0) {
fseek(bin_fp, config.bin_offset, SEEK_SET);
}
flength = fread(raw, 1, raw_size, bin_fp);
if (flength != raw_size) {
ERROR("Error reading %d bytes from \"%s\"\n", raw_size, config.bin_filename);
}
switch (config.format.format) {
case IMG_FORMAT_RGBA:
imgr = raw2rgba(raw, config.width, config.height, config.format.depth);
res = rgba2png(config.img_filename, imgr, config.width, config.height);
break;
case IMG_FORMAT_IA:
imgi = raw2ia(raw, config.width, config.height, config.format.depth);
res = ia2png(config.img_filename, imgi, config.width, config.height);
break;
case IMG_FORMAT_I:
imgi = raw2i(raw, config.width, config.height, config.format.depth);
res = ia2png(config.img_filename, imgi, config.width, config.height);
break;
case IMG_FORMAT_CI:
{
FILE *pal_fp;
uint8_t *pal;
uint8_t *raw_fmt;
int pal_size;
INFO("Extracting %s offset 0x%X, pal.offset 0x%0X, pal.format %s\n", format2str(&config.format),
config.bin_offset, config.pal_offset, format2str(&config.pal_format));
pal_fp = fopen(config.pal_filename, "rb");
if (!pal_fp) {
ERROR("Error opening \"%s\"\n", config.bin_filename);
return EXIT_FAILURE;
}
if (config.pal_offset > 0) {
fseek(pal_fp, config.pal_offset, SEEK_SET);
}
pal_size = sizeof(uint16_t) * (1 << config.format.depth);
INFO("Palette size: %d\n", pal_size);
pal = malloc(pal_size);
flength = fread(pal, 1, pal_size, pal_fp);
if (flength != pal_size) {
ERROR("Error reading %d bytes from \"%s\"\n", pal_size, config.pal_filename);
}
raw_fmt = ci2raw(raw, pal, config.width, config.height, config.format.depth);
switch (config.pal_format.format) {
case IMG_FORMAT_RGBA:
INFO("Converting raw to RGBA16\n");
imgr = raw2rgba(raw_fmt, config.width, config.height, config.pal_format.depth);
res = rgba2png(config.img_filename, imgr, config.width, config.height);
break;
case IMG_FORMAT_IA:
INFO("Converting raw to IA16\n");
imgi = raw2ia(raw_fmt, config.width, config.height, config.pal_format.depth);
res = ia2png(config.img_filename, imgi, config.width, config.height);
break;
default:
ERROR("Unsupported palette format: %s\n", format2str(&config.pal_format));
return EXIT_FAILURE;
}
free(raw_fmt);
free(pal);
break;
}
default:
return EXIT_FAILURE;
}
if (!res) {
ERROR("Error writing to \"%s\"\n", config.img_filename);
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
#endif // N64GRAPHICS_STANDALONE
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