# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1421512648 -7200
# Node ID 465ca72c9657a77f1faae6a4db84f765e8c762ca

initial commit

diff -r 000000000000 -r 465ca72c9657 .hgignore
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.hgignore	Sat Jan 17 18:37:28 2015 +0200
@@ -0,0 +1,7 @@
+\.o$
+\.d$
+\.swp$
+^orig_data/
+^data/
+^eobish$
+^utils/tileproc$
diff -r 000000000000 -r 465ca72c9657 Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Makefile	Sat Jan 17 18:37:28 2015 +0200
@@ -0,0 +1,19 @@
+csrc = $(wildcard src/*.c)
+ccsrc = $(wildcard src/*.cc)
+obj = $(csrc:.c=.o) $(ccsrc:.cc=.o)
+bin = eobish
+
+CFLAGS = -pedantic -Wall -g `pkg-config --cflags sdl`
+CXXFLAGS = $(CFLAGS)
+LDFLAGS = `pkg-config --libs sdl`
+
+$(bin): $(obj)
+	$(CXX) -o $@ $(obj) $(LDFLAGS)
+
+.PHONY: clean
+clean:
+	rm -f $(obj) $(bin)
+
+.PHONY: data
+data:
+	$(MAKE) -C orig_data
diff -r 000000000000 -r 465ca72c9657 doc/palette_allocation
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/palette_allocation	Sat Jan 17 18:37:28 2015 +0200
@@ -0,0 +1,9 @@
+Palette allocation (32 color blocks)
+------------------------------------
+  0 - 31 : UI
+ 32 - 63 : enemies dark
+ 64 - 95 : enemies light (original)
+ 96 - 159: effects
+160 - 191: dungeon dark
+192 - 223: dungeon mid
+224 - 255: dungeon light (original)
diff -r 000000000000 -r 465ca72c9657 src/main.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main.cc	Sat Jan 17 18:37:28 2015 +0200
@@ -0,0 +1,81 @@
+#include <stdio.h>
+#include <SDL/SDL.h>
+
+static void display();
+static bool proc_event(SDL_Event *ev);
+static void set_pal_entry(int idx, int r, int g, int b);
+
+static SDL_Surface *fbsurf;
+
+int main(int argc, char **argv)
+{
+	SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER);
+
+	if(!(fbsurf = SDL_SetVideoMode(320, 240, 8, SDL_SWSURFACE))) {
+		fprintf(stderr, "failed to set video mode\n");
+		return 1;
+	}
+	set_pal_entry(1, 255, 0, 0);
+
+	for(;;) {
+		SDL_Event ev;
+		while(SDL_PollEvent(&ev)) {
+			if(!proc_event(&ev)) {
+				goto done;
+			}
+		}
+
+		display();
+	}
+
+done:
+	SDL_Quit();
+	return 0;
+}
+
+void display()
+{
+	if(SDL_MUSTLOCK(fbsurf)) {
+		SDL_LockSurface(fbsurf);
+	}
+
+	unsigned char *pixels = (unsigned char*)fbsurf->pixels;
+	for(int i=0; i<fbsurf->w * fbsurf->h; i++) {
+		*pixels++ = 1;
+	}
+
+	if(SDL_MUSTLOCK(fbsurf)) {
+		SDL_UnlockSurface(fbsurf);
+	}
+
+	SDL_Flip(fbsurf);
+}
+
+static bool proc_event(SDL_Event *ev)
+{
+	switch(ev->type) {
+	case SDL_KEYDOWN:
+		if(ev->key.keysym.sym == SDLK_ESCAPE) {
+			return false;
+		}
+		break;
+
+	default:
+		break;
+	}
+	return true;
+}
+
+static void set_pal_entry(int idx, int r, int g, int b)
+{
+	SDL_Color col;
+	col.r = r;
+	col.g = g;
+	col.b = b;
+
+	SDL_SetPalette(fbsurf, SDL_LOGPAL | SDL_PHYSPAL, &col, idx, 1);
+
+	/*palette[idx].r = r;
+	palette[idx].g = g;
+	palette[idx].b = b;*/
+}
diff -r 000000000000 -r 465ca72c9657 utils/Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/utils/Makefile	Sat Jan 17 18:37:28 2015 +0200
@@ -0,0 +1,8 @@
+CFLAGS = -pedantic -Wall -g
+
+tileproc: tileproc.o
+	$(CC) -o $@ $< -limago
+
+.PHONY: clean
+clean:
+	rm -f *.o
diff -r 000000000000 -r 465ca72c9657 utils/tileproc.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/utils/tileproc.c	Sat Jan 17 18:37:28 2015 +0200
@@ -0,0 +1,196 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <float.h>
+#include <errno.h>
+#ifndef WIN32
+#include <alloca.h>
+#else
+#include <malloc.h>
+#endif
+#include <imago2.h>
+
+struct palentry {
+	float r, g, b;
+	struct palentry *next;
+};
+
+int load_palette(const char *fname);
+int proc_tile(const char *fname);
+float find_nearest(float r, float g, float b);
+
+struct palentry *palette;
+int palsize;
+
+int main(int argc, char **argv)
+{
+	int i;
+
+	for(i=1; i<argc; i++) {
+		if(argv[i][0] == '-') {
+			switch(argv[i][1]) {
+			case 'p':
+				if(load_palette(argv[++i]) == -1) {
+					return 1;
+				}
+				break;
+
+			default:
+				fprintf(stderr, "invalid option: %s\n", argv[i]);
+				return 1;
+			}
+		} else {
+			if(proc_tile(argv[i]) == -1) {
+				return 1;
+			}
+		}
+	}
+	return 0;
+}
+
+int load_palette(const char *fname)
+{
+	FILE *fp;
+	char buf[128];
+	struct palentry *newpal;
+	struct palentry *head = 0, *tail;
+	int nent = 0;
+
+	if(!(fp = fopen(fname, "r"))) {
+		fprintf(stderr, "failed to open palette file: %s: %s\n", fname, strerror(errno));
+		return -1;
+	}
+
+	while(fgets(buf, sizeof buf, fp)) {
+		struct palentry *pent;
+		char *endp, *line = buf;
+		int r, g, b;
+
+		if(!line || !*line) continue;
+
+		if(*line == '#') {	/* hex html-like values */
+			unsigned int val = strtol(line + 1, &endp, 16);
+			if(endp == line) {
+				fprintf(stderr, "unrecognized line \"%s\" in palette file: %s\n", line, fname);
+				goto fail;
+			}
+
+			r = (val >> 16) & 0xff;
+			g = (val >> 8) & 0xff;
+			b = val & 0xff;
+		} else {
+			fprintf(stderr, "unrecognized line \"%s\" in palette file: %s\n", line, fname);
+			goto fail;
+		}
+
+		if(!(pent = malloc(sizeof *pent))) {
+			perror("failed to allocate palette entry");
+			goto fail;
+		}
+		pent->r = (float)r / 255.0;
+		pent->g = (float)g / 255.0;
+		pent->b = (float)b / 255.0;
+		pent->next = 0;
+
+		if(head) {
+			tail->next = pent;
+			tail = pent;
+		} else {
+			head = tail = pent;
+		}
+		nent++;
+	}
+
+	/* flatten */
+	if(!(newpal = malloc(nent * sizeof *newpal))) {
+		fprintf(stderr, "failed to allocate %d palette entries: %s\n", nent, strerror(errno));
+		goto fail;
+	}
+	palette = newpal;
+	palsize = nent;
+
+	while(head) {
+		struct palentry *ent = head;
+		head = head->next;
+
+		*newpal++ = *ent;
+		free(ent);
+	}
+
+	printf("loaded palette: %s (%d colors)\n", fname, nent);
+
+	fclose(fp);
+	return 0;
+
+fail:
+	fclose(fp);
+	while(head) {
+		void *tmp = head;
+		head = head->next;
+		free(tmp);
+	}
+	return -1;
+}
+
+int proc_tile(const char *fname)
+{
+	int i;
+	int xsz, ysz;
+	unsigned char *pixels, *pptr;
+	char *outfname, *cptr;
+	FILE *fp;
+	const char *magic = "TILEIMAG";
+
+	outfname = alloca(strlen(fname) + 4);
+	strcpy(outfname, fname);
+	if((cptr = strrchr(outfname, '.'))) {
+		*cptr = 0;
+	}
+	strcat(outfname, ".til");
+
+	printf("processing tile: %s -> %s\n", fname, outfname);
+
+	if(!(pixels = img_load_pixels(fname, &xsz, &ysz, IMG_FMT_RGB24))) {
+		fprintf(stderr, "failed to load source tile image: %s\n", fname);
+		return -1;
+	}
+	if(!(fp = fopen(outfname, "wb"))) {
+		fprintf(stderr, "failed to open output tile image for writing: %s: %s\n", outfname, strerror(errno));
+		img_free_pixels(pixels);
+		return -1;
+	}
+	/* write header */
+	fwrite(magic, 1, 8, fp);
+	fwrite(&xsz, sizeof xsz, 1, fp);
+	fwrite(&ysz, sizeof ysz, 1, fp);
+
+	pptr = pixels;
+	for(i=0; i<xsz * ysz; i++) {
+		int idx = find_nearest(pptr[0] / 255.0, pptr[1] / 255.0, pptr[2] / 255.0);
+		fputc(idx, fp);
+		pptr += 3;
+	}
+	img_free_pixels(pixels);
+	fclose(fp);
+	return 0;
+}
+
+float find_nearest(float r, float g, float b)
+{
+	int i, res;
+	float mindist = FLT_MAX;
+
+	for(i=0; i<palsize; i++) {
+		float dr = r - palette[i].r;
+		float dg = g - palette[i].g;
+		float db = b - palette[i].b;
+		float dist = dr * dr + dg * dg + db * db;
+
+		if(dist < mindist) {
+			mindist = dist;
+			res = i;
+		}
+	}
+	return res;
+}