mirror of
https://github.com/coop-deluxe/sm64coopdx.git
synced 2024-11-29 07:23:01 +00:00
573 lines
17 KiB
C
573 lines
17 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <strings.h>
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#define STBI_NO_LINEAR
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#define STBI_NO_HDR
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#define STBI_NO_TGA
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#define STB_IMAGE_IMPLEMENTATION
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#include "../stb/stb_image.h"
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "../stb/stb_image_write.h"
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#include "exoquant/exoquant.h"
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#include "n64graphics_ci.h"
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#include "utils.h"
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// SCALE_M_N: upscale/downscale M-bit integer to N-bit
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#define SCALE_5_8(VAL_) (((VAL_) * 0xFF) / 0x1F)
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#define SCALE_8_5(VAL_) ((((VAL_) + 4) * 0x1F) / 0xFF)
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#define SCALE_4_8(VAL_) ((VAL_) * 0x11)
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#define SCALE_8_4(VAL_) ((VAL_) / 0x11)
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#define SCALE_3_8(VAL_) ((VAL_) * 0x24)
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#define SCALE_8_3(VAL_) ((VAL_) / 0x24)
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typedef enum
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{
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IMG_FORMAT_CI
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} img_format;
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rgba *raw2rgba(const uint8_t *raw, int width, int height, int depth)
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{
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rgba *img;
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int img_size;
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img_size = width * height * sizeof(*img);
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img = malloc(img_size);
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if (!img) {
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ERROR("Error allocating %d bytes\n", img_size);
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return NULL;
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}
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if (depth == 16) {
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for (int i = 0; i < width * height; i++) {
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img[i].red = SCALE_5_8((raw[i * 2] & 0xF8) >> 3);
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img[i].green = SCALE_5_8(((raw[i * 2] & 0x07) << 2) | ((raw[i * 2 + 1] & 0xC0) >> 6));
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img[i].blue = SCALE_5_8((raw[i * 2 + 1] & 0x3E) >> 1);
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img[i].alpha = (raw[i * 2 + 1] & 0x01) ? 0xFF : 0x00;
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}
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}
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else if (depth == 32) {
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for (int i = 0; i < width * height; i++) {
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img[i].red = raw[i * 4];
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img[i].green = raw[i * 4 + 1];
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img[i].blue = raw[i * 4 + 2];
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img[i].alpha = raw[i * 4 + 3];
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}
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}
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return img;
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}
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// extract RGBA from CI raw data and palette
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rgba *rawci2rgba(const uint8_t *rawci, const uint8_t *palette, int width, int height, int depth)
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{
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uint8_t *raw_rgba;
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rgba *img = NULL;
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int raw_size;
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int pal_index_1;
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int pal_index_2;
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// first convert to raw RGBA
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raw_size = 2 * width * height;
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raw_rgba = malloc(raw_size);
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if (!raw_rgba) {
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ERROR("Error allocating %u bytes\n", raw_size);
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return NULL;
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}
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if (depth == 4) { // CI4
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for (int i = 0; i < (width * height) / 2; i++) {
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pal_index_1 = rawci[i] >> 4;
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pal_index_2 = rawci[i] & 0xF;
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raw_rgba[i * 4 + 0] = palette[pal_index_1 * 2 + 0];
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raw_rgba[i * 4 + 1] = palette[pal_index_1 * 2 + 1];
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raw_rgba[i * 4 + 2] = palette[pal_index_2 * 2 + 0];
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raw_rgba[i * 4 + 3] = palette[pal_index_2 * 2 + 1];
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}
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} else { // CI8
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for (int i = 0; i < width * height; i++) {
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pal_index_1 = rawci[i];
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raw_rgba[i * 2 + 0] = palette[pal_index_1 * 2 + 0];
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raw_rgba[i * 2 + 1] = palette[pal_index_1 * 2 + 1];
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}
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}
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// then convert to RGBA image data
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img = raw2rgba(raw_rgba, width, height, 16);
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free(raw_rgba);
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return img;
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}
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int rgba2rawci(uint8_t *raw, uint8_t *out_palette, int *pal_len, const rgba *img, int width, int height, int depth)
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{
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int size = width * height * depth / 8;
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int num_colors = *pal_len / 2;
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INFO("Converting RGBA %dx%d to raw CI%d\n", width, height, depth);
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uint8_t *rgba32_palette = malloc(num_colors * 4);
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uint8_t *ci8_raw = malloc(width * height);
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// Use ExoQuant to convert the RGBA32 data buffer to an CI8 output
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exq_data *pExq = exq_init();
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exq_feed(pExq, (uint8_t*)img, width * height);
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exq_quantize_hq(pExq, num_colors);
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exq_get_palette(pExq, rgba32_palette, num_colors);
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exq_map_image_ordered(pExq, width, height, (uint8_t*)img, ci8_raw);
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exq_free(pExq);
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if (depth == 4) {
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// Convert CI8 image to CI4 image
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for (int i = 0; i < size; i++) {
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raw[i] = (ci8_raw[i * 2 + 0] << 4) | ci8_raw[i * 2 + 1];
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}
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}
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else {
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memcpy(raw, ci8_raw, size);
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}
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// Convert RGBA32 palette to RGBA16
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for (int i = 0; i < num_colors; i++) {
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unsigned char red = (rgba32_palette[i * 4 + 0] / 8) & 0x1F;
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unsigned char green = (rgba32_palette[i * 4 + 1] / 8) & 0x1F;
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unsigned char blue = (rgba32_palette[i * 4 + 2] / 8) & 0x1F;
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unsigned char alpha = rgba32_palette[i * 4 + 3] > 0 ? 1 : 0; // 1 bit alpha
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out_palette[i * 2 + 0] = (red << 3) | (green >> 2);
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out_palette[i * 2 + 1] = ((green & 3) << 6) | (blue << 1) | alpha;
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}
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free(rgba32_palette);
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free(ci8_raw);
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return size;
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}
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rgba *png2rgba(const char *png_filename, int *width, int *height)
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{
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rgba *img = NULL;
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int w = 0;
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int h = 0;
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int channels = 0;
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int img_size;
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stbi_uc *data = stbi_load(png_filename, &w, &h, &channels, STBI_default);
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if (!data || w <= 0 || h <= 0) {
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ERROR("Error loading png file \"%s\"\n", png_filename);
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return NULL;
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}
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INFO("Read \"%s\" %dx%d channels: %d\n", png_filename, w, h, channels);
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img_size = w * h * sizeof(*img);
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img = malloc(img_size);
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if (!img) {
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ERROR("Error allocating %u bytes\n", img_size);
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return NULL;
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}
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switch (channels) {
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case 3: // red, green, blue
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case 4: // red, green, blue, alpha
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for (int j = 0; j < h; j++) {
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for (int i = 0; i < w; i++) {
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int idx = j*w + i;
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img[idx].red = data[channels*idx];
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img[idx].green = data[channels*idx + 1];
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img[idx].blue = data[channels*idx + 2];
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if (channels == 4) {
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img[idx].alpha = data[channels*idx + 3];
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}
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else {
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img[idx].alpha = 0xFF;
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}
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}
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}
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break;
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case 2: // grey, alpha
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for (int j = 0; j < h; j++) {
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for (int i = 0; i < w; i++) {
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int idx = j*w + i;
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img[idx].red = data[2 * idx];
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img[idx].green = data[2 * idx];
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img[idx].blue = data[2 * idx];
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img[idx].alpha = data[2 * idx + 1];
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}
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}
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break;
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default:
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ERROR("Don't know how to read channels: %d\n", channels);
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free(img);
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img = NULL;
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}
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// cleanup
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stbi_image_free(data);
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*width = w;
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*height = h;
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return img;
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}
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int rgba2png(const char *png_filename, const rgba *img, int width, int height)
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{
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int ret = 0;
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INFO("Saving RGBA %dx%d to \"%s\"\n", width, height, png_filename);
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// convert to format stb_image_write expects
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uint8_t *data = malloc(4 * width*height);
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if (data) {
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for (int j = 0; j < height; j++) {
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for (int i = 0; i < width; i++) {
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int idx = j*width + i;
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data[4 * idx] = img[idx].red;
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data[4 * idx + 1] = img[idx].green;
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data[4 * idx + 2] = img[idx].blue;
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data[4 * idx + 3] = img[idx].alpha;
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}
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}
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ret = stbi_write_png(png_filename, width, height, 4, data, 0);
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free(data);
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}
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return ret;
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}
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const char *n64graphics_get_read_version(void)
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{
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return "stb_image 2.19";
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}
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const char *n64graphics_get_write_version(void)
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{
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return "stb_image_write 1.09";
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}
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/***************************************************************/
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#define N64GRAPHICS_VERSION "0.4 - CI Only Branch"
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#include <string.h>
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typedef enum
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{
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MODE_EXPORT,
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MODE_IMPORT,
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} tool_mode;
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typedef struct
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{
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char *img_filename;
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char *bin_filename;
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tool_mode mode;
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unsigned int offset;
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img_format format;
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int depth;
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int width;
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int height;
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int truncate;
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} graphics_config;
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static const graphics_config default_config =
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{
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.img_filename = NULL,
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.bin_filename = NULL,
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.mode = MODE_EXPORT,
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.offset = 0,
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.format = IMG_FORMAT_CI,
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.depth = 8,
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.width = 32,
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.height = 32,
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.truncate = 1,
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};
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typedef struct
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{
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const char *name;
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img_format format;
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int depth;
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} format_entry;
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static const format_entry format_table[] =
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{
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{ "ci4", IMG_FORMAT_CI, 4 },
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{ "ci8", IMG_FORMAT_CI, 8 },
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};
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static const char *format2str(img_format format, int depth)
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{
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for (unsigned i = 0; i < DIM(format_table); i++) {
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if (format == format_table[i].format && depth == format_table[i].depth) {
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return format_table[i].name;
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}
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}
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return "unknown";
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}
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static int parse_format(graphics_config *config, const char *str)
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{
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for (unsigned i = 0; i < DIM(format_table); i++) {
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if (!strcasecmp(str, format_table[i].name)) {
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config->format = format_table[i].format;
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config->depth = format_table[i].depth;
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return 1;
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}
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}
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return 0;
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}
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static void print_usage(void)
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{
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ERROR("Usage: n64graphics_ci -e/-i BIN_FILE -g PNG_FILE [-o offset] [-f FORMAT] [-w WIDTH] [-h HEIGHT] [-V]\n"
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"\n"
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"n64graphics v" N64GRAPHICS_VERSION ": N64 graphics manipulator\n"
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"\n"
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"Required arguments:\n"
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" -e BIN_FILE export from BIN_FILE to PNG_FILE\n"
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" -i BIN_FILE import from PNG_FILE to BIN_FILE\n"
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" -g PNG_FILE graphics file to import/export (.png)\n"
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"Optional arguments:\n"
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" -o OFFSET starting offset in BIN_FILE (prevents truncation during import)\n"
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" -f FORMAT texture format: ci4, ci8 (default: %s)\n"
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" -w WIDTH export texture width (default: %d)\n"
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" -h HEIGHT export texture height (default: %d)\n"
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" -v verbose logging\n"
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" -V print version information\n",
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format2str(default_config.format, default_config.depth),
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default_config.width,
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default_config.height);
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}
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static void print_version(void)
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{
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ERROR("n64graphics v" N64GRAPHICS_VERSION ", using:\n"
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" %s\n"
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" %s\n",
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n64graphics_get_read_version(), n64graphics_get_write_version());
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}
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// parse command line arguments
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static int parse_arguments(int argc, char *argv[], graphics_config *config)
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{
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for (int i = 1; i < argc; i++) {
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if (argv[i][0] == '-') {
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switch (argv[i][1]) {
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case 'e':
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if (++i >= argc) return 0;
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config->bin_filename = argv[i];
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config->mode = MODE_EXPORT;
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break;
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case 'f':
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if (++i >= argc) return 0;
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if (!parse_format(config, argv[i])) {
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return 0;
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}
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break;
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case 'i':
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if (++i >= argc) return 0;
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config->bin_filename = argv[i];
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config->mode = MODE_IMPORT;
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break;
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case 'g':
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if (++i >= argc) return 0;
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config->img_filename = argv[i];
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break;
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case 'h':
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if (++i >= argc) return 0;
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config->height = strtoul(argv[i], NULL, 0);
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break;
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case 'o':
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if (++i >= argc) return 0;
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config->offset = strtoul(argv[i], NULL, 0);
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config->truncate = 0;
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break;
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case 'w':
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if (++i >= argc) return 0;
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config->width = strtoul(argv[i], NULL, 0);
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break;
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case 'v':
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g_verbosity = 1;
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break;
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case 'V':
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print_version();
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exit(0);
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break;
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default:
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return 0;
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break;
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}
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}
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else {
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return 0;
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}
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}
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return 1;
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}
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char* getPaletteFilename(char* ci_filename)
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{
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int bin_filename_len;
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int extension_len;
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char* pal_bin_filename;
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char* extension_loc;
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char* extension;
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// Write Palette file
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bin_filename_len = strlen(ci_filename);
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extension_loc = strrchr(ci_filename, '.');
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extension_len = (int)(extension_loc - ci_filename);
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extension = malloc(extension_len);
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memcpy(extension, extension_loc, extension_len);
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pal_bin_filename = malloc(bin_filename_len + 4); // +4 to include ".pal"
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if (!pal_bin_filename) {
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ERROR("Error allocating bytes for palette filename\n");
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}
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memcpy(pal_bin_filename, ci_filename, bin_filename_len);
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strcpy(pal_bin_filename + bin_filename_len, ".pal");
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//strcpy(pal_bin_filename + bin_filename_len, extension);
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free(extension);
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return pal_bin_filename;
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}
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int main(int argc, char* argv[])
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{
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graphics_config config = default_config;
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rgba *imgr;
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FILE *fp;
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uint8_t *raw;
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int raw_size;
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int length = 0;
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int flength;
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int res;
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FILE *fp_pal; // for ci palette
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uint8_t *pal;
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int pal_len;
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char* pal_bin_filename;
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int valid = parse_arguments(argc, argv, &config);
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if (!valid || !config.bin_filename || !config.bin_filename || !config.img_filename) {
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print_usage();
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exit(EXIT_FAILURE);
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}
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if (config.mode == MODE_IMPORT) {
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printf("%s\n", config.bin_filename);
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if (config.truncate) {
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fp = fopen(config.bin_filename, "w");
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}
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else {
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fp = fopen(config.bin_filename, "r+");
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}
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if (!fp) {
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ERROR("Error opening binary file \"%s\"\n", config.bin_filename);
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return -1;
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}
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if (!config.truncate) {
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fseek(fp, config.offset, SEEK_SET);
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}
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switch (config.format) {
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case IMG_FORMAT_CI:
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imgr = png2rgba(config.img_filename, &config.width, &config.height);
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raw_size = config.width * config.height * config.depth / 8;
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raw = malloc(raw_size);
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if (!raw) {
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ERROR("Error allocating %u bytes\n", raw_size);
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}
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if (config.depth == 4) {
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pal_len = 16 * 2; // CI4
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}
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else {
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pal_len = 256 * 2; // CI8
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}
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pal = malloc(pal_len);
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if (!pal) {
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ERROR("Error allocating %u bytes for palette\n", pal_len);
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}
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length = rgba2rawci(raw, pal, &pal_len, imgr, config.width, config.height, config.depth);
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//length = rgba2raw(raw, imgr, config.width, config.height, config.depth);
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break;
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}
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if (length <= 0) {
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ERROR("Error converting to raw format\n");
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return EXIT_FAILURE;
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}
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INFO("Writing 0x%X bytes to offset 0x%X of \"%s\"\n", length, config.offset, config.bin_filename);
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flength = fwrite(raw, 1, length, fp);
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if (flength != length) {
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ERROR("Error writing %d bytes to \"%s\"\n", length, config.bin_filename);
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}
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fclose(fp);
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if (config.format == IMG_FORMAT_CI) {
|
|
pal_bin_filename = getPaletteFilename(config.bin_filename);
|
|
|
|
fp_pal = fopen(pal_bin_filename, "w");
|
|
INFO("Writing 0x%X bytes to palette file \"%s\"\n", pal_len, pal_bin_filename);
|
|
flength = fwrite(pal, 1, pal_len, fp_pal);
|
|
if (flength != pal_len) {
|
|
ERROR("Error writing %d bytes to \"%s\"\n", pal_len, pal_bin_filename);
|
|
}
|
|
fclose(fp_pal);
|
|
free(pal_bin_filename);
|
|
}
|
|
} else { // Export
|
|
if (config.width <= 0 || config.height <= 0 || config.depth <= 0) {
|
|
ERROR("Error: must set position width and height for export\n");
|
|
return EXIT_FAILURE;
|
|
}
|
|
fp = fopen(config.bin_filename, "r");
|
|
if (!fp) {
|
|
ERROR("Error opening \"%s\"\n", config.bin_filename);
|
|
return -1;
|
|
}
|
|
raw_size = config.width * config.height * config.depth / 8;
|
|
raw = malloc(raw_size);
|
|
if (config.offset > 0) {
|
|
fseek(fp, config.offset, SEEK_SET);
|
|
}
|
|
flength = fread(raw, 1, raw_size, fp);
|
|
if (flength != raw_size) {
|
|
ERROR("Error reading %d bytes from \"%s\"\n", raw_size, config.bin_filename);
|
|
}
|
|
switch (config.format) {
|
|
case IMG_FORMAT_CI:
|
|
// Read Palette file
|
|
pal_bin_filename = getPaletteFilename(config.bin_filename);
|
|
fp_pal = fopen(pal_bin_filename, "r");
|
|
if (!fp_pal) {
|
|
ERROR("Error opening \"%s\"\n", pal_bin_filename);
|
|
return -1;
|
|
}
|
|
if (config.depth == 4) {
|
|
pal_len = 16 * 2; // CI4
|
|
}
|
|
else {
|
|
pal_len = 256 * 2; // CI8
|
|
}
|
|
|
|
pal = malloc(pal_len);
|
|
if (config.offset > 0) {
|
|
fseek(fp, config.offset, SEEK_SET);
|
|
}
|
|
flength = fread(pal, 1, pal_len, fp_pal);
|
|
|
|
imgr = rawci2rgba(raw, pal, config.width, config.height, config.depth);
|
|
res = rgba2png(config.img_filename, imgr, config.width, config.height);
|
|
|
|
free(pal_bin_filename);
|
|
break;
|
|
default:
|
|
return EXIT_FAILURE;
|
|
}
|
|
if (!res) {
|
|
ERROR("Error writing to \"%s\"\n", config.img_filename);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|