#include "colors.h"
#include "extractcolors.h"
#include <cstring>
#include <cstdio>
#include <cstdlib>
#include <png.h>
#define SETCOLOR(col,r,g,b,a) do { \
colors[col][BLUE] = colors[col][PBLUE] = b; \
colors[col][GREEN] = colors[col][PGREEN] = g; \
colors[col][RED] = colors[col][PRED] = r; \
colors[col][ALPHA] = colors[col][PALPHA] = a; \
colors[col][BRIGHTNESS] = (uint8_t)sqrt( \
double(r * r) * .236 + \
double(g * g) * .601 + \
double(b * b) * .163); \
} while (false)
#define SETCOLORNOISE(col,r,g,b,a,n) do { \
colors[col][BLUE] = colors[col][PBLUE] = b; \
colors[col][GREEN] = colors[col][PGREEN] = g; \
colors[col][RED] = colors[col][PRED] = r; \
colors[col][ALPHA] = colors[col][PALPHA] = a; \
colors[col][NOISE] = n; \
colors[col][BRIGHTNESS] = (uint8_t)sqrt( \
double(r * r) * .236 + \
double(g * g) * .601 + \
double(b * b) * .163); \
} while (false)
// See header for description
uint8_t colors[256][16];
void loadColors()
{
// Colors are mostly the same as in Cartograph
memset(colors, 0, sizeof colors);
SETCOLOR(AIR, 255,255,255,0);
SETCOLORNOISE(STONE, 128,128,128,255, 16);
SETCOLORNOISE(GRASS, 117,176,73,255, 14);
SETCOLORNOISE(DIRT, 134,96,67,255, 22);
SETCOLORNOISE(COBBLESTONE, 115,115,115,255, 26);
SETCOLORNOISE(WOOD, 157,128,79,255, 11);
SETCOLOR(6, 120,120,120,0);
SETCOLOR(7, 84,84,84,255);
SETCOLOR(WATER, 38,92,225,41);
SETCOLOR(STAT_WATER, 38,92,225,41);
SETCOLOR(10, 255,90,0,255);
SETCOLOR(11, 255,90,0,255);
SETCOLORNOISE(SAND, 220,212,160,255, 14);
SETCOLORNOISE(GRAVEL, 136,126,126,255, 24);
SETCOLOR(14, 143,140,125,255);
SETCOLOR(15, 136,130,127,255);
SETCOLOR(16, 115,115,115,255);
SETCOLOR(LOG, 102,81,51,255);
SETCOLORNOISE(LEAVES, 64,168,40,180, 12);
SETCOLOR(20, 255,255,255,64); //glass
//SETCOLOR(21, 222,50,50,255);
//SETCOLOR(22, 222,136,50,255);
//SETCOLOR(23, 222,222,50,255);
//SETCOLOR(24, 136,222,50,255);
//SETCOLOR(25, 50,222,50,255);
//SETCOLOR(26, 50,222,136,255);
//SETCOLOR(27, 50,222,222,255);
//SETCOLOR(28, 104,163,222,255);
//SETCOLOR(29, 120,120,222,255);
//SETCOLOR(30, 136,50,222,255);
//SETCOLOR(31, 174,74,222,255);
//SETCOLOR(32, 222,50,222,255);
//SETCOLOR(33, 222,50,136,255);
//SETCOLOR(34, 77,77,77,255);
SETCOLOR(35, 222,222,222,255); //Color(143,143,143,255);
//SETCOLOR(36, 222,222,222,255);
SETCOLOR(FLOWERR, 255,0,0,254); // Not fully opaque to prevent culling on this one
SETCOLOR(FLOWERY, 255,255,0,254); // Not fully opaque to prevent culling on this one
SETCOLOR(MUSHROOMB, 128,100,0,254); // Not fully opaque to prevent culling on this one
SETCOLOR(MUSHROOMR, 140,12,12,254); // Not fully opaque to prevent culling on this one
SETCOLOR(41, 231,165,45,255);
SETCOLOR(42, 191,191,191,255);
SETCOLOR(DOUBLESTEP, 200,200,200,255);
SETCOLOR(STEP, 200,200,200,254); // Not fully opaque to prevent culling on this one
SETCOLOR(45, 170,86,62,255);
SETCOLOR(46, 160,83,65,255);
SETCOLOR(48, 115,115,115,255);
SETCOLOR(49, 26,11,43,255);
SETCOLOR(TORCH, 245,220,50,200);
SETCOLOR(FIRE, 255,170,30,200);
SETCOLOR(52, 245,220,50,255); // unnecessary afaik
SETCOLOR(53, 157,128,79,255);
SETCOLOR(54, 125,91,38,255);
SETCOLOR(55, 245,220,50,255); // unnecessary afaik
SETCOLOR(56, 129,140,143,255);
SETCOLOR(57, 45,166,152,255);
SETCOLOR(58, 114,88,56,255);
SETCOLOR(59, 146,192,0,255);
SETCOLOR(60, 95,58,30,255);
SETCOLOR(61, 96,96,96,255);
SETCOLOR(62, 96,96,96,255);
SETCOLOR(63, 111,91,54,255);
SETCOLOR(64, 136,109,67,255);
SETCOLOR(65, 181,140,64,32);
SETCOLOR(66, 150,134,102,180);
SETCOLOR(67, 115,115,115,255);
SETCOLOR(71, 191,191,191,255);
SETCOLOR(73, 131,107,107,255);
SETCOLOR(74, 131,107,107,255);
SETCOLOR(REDTORCH_OFF, 181,100,44,254);
SETCOLOR(REDTORCH_ON, 255,0,0,254);
SETCOLOR(SNOW, 245,246,245,254); // Not fully opaque to prevent culling on this one
SETCOLOR(79, 83,113,163,55);
SETCOLOR(80, 250,250,250,255);
SETCOLOR(81, 25,120,25,255);
SETCOLOR(82, 151,157,169,255);
SETCOLOR(83, 183,234,150,255);
SETCOLOR(84, 100,67,50,255);
SETCOLOR(FENCE, 137,112,65,225); // Not fully opaque to prevent culling on this one
}
bool loadColorsFromFile(const char *file)
{
FILE *f = fopen(file, "r");
if (f == NULL) {
return false;
}
while (!feof(f)) {
char buffer[500];
if (fgets(buffer, 500, f) == NULL) {
break;
}
char *ptr = buffer;
while (*ptr == ' ' || *ptr == '\t') {
++ptr;
}
if (*ptr == '\0' || *ptr == '#') {
continue; // This is a comment or empty line, skip
}
int blockid = atoi(ptr);
if (blockid < 1 || blockid > 255) {
printf("Skipping invalid blockid %d in colors file\n", blockid);
continue;
}
while (*ptr != ' ' && *ptr != '\t' && *ptr != '\0') {
++ptr;
}
uint8_t vals[5];
bool valid = true;
for (int i = 0; i < 5; ++i) {
while (*ptr == ' ' || *ptr == '\t') {
++ptr;
}
if (*ptr == '\0') {
printf("Too few arguments for block %d, ignoring line.\n", blockid);
valid = false;
break;
}
if (i == 0) {
vals[RED] = clamp(atoi(ptr));
} else if (i == 2) {
vals[BLUE] = clamp(atoi(ptr));
} else {
vals[i] = clamp(atoi(ptr));
}
while (*ptr != ' ' && *ptr != '\t' && *ptr != '\0') {
++ptr;
}
}
if (!valid) {
continue;
}
memcpy(colors[blockid], vals, 5);
colors[blockid][PRED] = colors[blockid][RED];
colors[blockid][PGREEN] = colors[blockid][GREEN];
colors[blockid][PBLUE] = colors[blockid][BLUE];
colors[blockid][PALPHA] = colors[blockid][ALPHA];
colors[blockid][BRIGHTNESS] = GETBRIGHTNESS(colors[blockid]);
}
fclose(f);
return true;
}
bool dumpColorsToFile(const char *file)
{
FILE *f = fopen(file, "w");
if (f == NULL) {
return false;
}
fprintf(f, "# For Block IDs see http://minecraftwiki.net/wiki/Data_values\n"
"# Note that noise or alpha (or both) do not work for a few blocks like snow, torches, fences, steps, ...\n"
"# Actually, if you see any block has an alpha value of 254 you should leave it that way to prevent black artifacts\n\n");
for (size_t i = 1; i < 256; ++i) {
uint8_t *c = colors[i];
if (i % 15 == 1) {
fprintf(f, "#ID R G B A Noise\n");
}
fprintf(f, "%3d %3d %3d %3d %3d %3d\n", int(i), int(c[2]), int(c[1]), int(c[0]), int(c[3]), int(c[4]));
}
fclose(f);
return true;
}
bool extractColors(const char* file)
{
// Open PNG file
FILE* fh = fopen(file, "rb");
if (fh == NULL) return false;
png_byte header[8]; // Check header
if (fread(header, 1, 8, fh) != 8 || png_sig_cmp(header, 0, 8)) {
// Not a PNG file
fclose(fh);
return false;
}
// Set up libpng to read file
png_structp pngPtr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
png_infop pngInfo = NULL;
if (pngPtr == NULL || setjmp(png_jmpbuf(pngPtr))) {
png_destroy_read_struct(&pngPtr, &pngInfo, NULL);
fclose(fh);
return false;
}
pngInfo = png_create_info_struct(pngPtr);
png_init_io(pngPtr, fh);
png_set_sig_bytes(pngPtr, 8);
png_read_info(pngPtr, pngInfo);
png_uint_32 width, height;
int bpc, type, interlace, comp, filter; // Check image format (square, RGBA)
png_uint_32 ret = png_get_IHDR(pngPtr, pngInfo, &width, &height, &bpc, &type, &interlace, &comp, &filter);
if (ret == 0 || width != height || (width / 8) * 8 != width || bpc != 8 || type != PNG_COLOR_TYPE_RGB_ALPHA) {
png_destroy_read_struct(&pngPtr, &pngInfo, NULL);
fclose(fh);
}
// Alloc mem
uint8_t *imgData = new uint8_t[width * height * 4], **rows = new uint8_t*[height];
for (png_uint_32 i = 0; i < height; ++i) {
rows[i] = imgData + i * width * 4;
}
png_read_image(pngPtr, rows);
png_destroy_read_struct(&pngPtr, &pngInfo, NULL);
for (int i = 0; i < 86; i++) {
if (i == TORCH) continue; // Keep those yellow for now
int r, g, b, a, n; // i i s g t u o l v n
if (getTileRGBA(imgData, width / 16, i, r, g, b, a, n)) {
const bool flag = (colors[i][ALPHA] == 254);
if (i == FENCE) {
r = clamp(r + 10);
g = clamp(g + 10);
b = clamp(b + 10);
}
SETCOLORNOISE(i, r, g, b, a, n);
if (flag) colors[i][ALPHA] = colors[i][PALPHA] = 254; // If you don't like this, dump texture pack to txt file and modify that one
}
}
delete[] rows;
delete[] imgData;
return true;
}
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