# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1403709592 -10800
# Node ID c359fcbd2422e4361a1d4063d26a7e50296fc9c7

initial commit

diff -r 000000000000 -r c359fcbd2422 .hgignore
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.hgignore	Wed Jun 25 18:19:52 2014 +0300
@@ -0,0 +1,8 @@
+\.o$
+\.d$
+\.swp$
+\.png$
+\.jpg$
+\.ppm$
+\.tga$
+img2gba$
diff -r 000000000000 -r c359fcbd2422 Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Makefile	Wed Jun 25 18:19:52 2014 +0300
@@ -0,0 +1,20 @@
+PREFIX = /usr/local
+
+src = $(wildcard src/*.c)
+obj = $(src:.c=.o)
+bin = img2gba
+
+CFLAGS = -pedantic -Wall -g
+LDFLAGS = -limago
+
+$(bin): $(obj)
+	$(CC) -o $@ $(obj) $(LDFLAGS)
+
+
+.PHONY: clean
+clean:
+	rm $(obj) $(bin)
+
+.PHONY: install
+install:
+	cp $(bin) $(DESTDIR)$(PREFIX)/bin/$(bin)
diff -r 000000000000 -r c359fcbd2422 src/imgconv.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/imgconv.c	Wed Jun 25 18:19:52 2014 +0300
@@ -0,0 +1,78 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <imago2.h>
+
+int save_image15(unsigned int *img, int x, int y, const char *fname, const char *array_name);
+
+int main(int argc, char **argv)
+{
+	int i;
+
+	if(argc < 2) {
+		fprintf(stderr, "not enough arguments\n");
+		return -1;
+	}
+
+	for(i=1; i<argc; i++) {
+		char fname[512], *cptr;
+		int x, y;
+		unsigned int *img = img_load_pixels(argv[i], &x, &y, IMG_FMT_RGBA32);
+		if(!img) continue;
+
+		strcpy(fname, argv[i]);
+		cptr = strrchr(fname, '.');
+		if(cptr) {
+			strcpy(cptr, ".c");
+		} else {
+			cptr = fname + strlen(fname);
+			strcpy(cptr, ".c");
+		}
+
+		if(save_image15(img, x, y, fname, "img") == -1) {
+			fprintf(stderr, "could not save as %s\n", fname);
+		}
+
+		img_free_pixels(img);
+	}
+	return 0;
+}
+
+#define GET_R(pixel)	(((pixel) >> 16) & 0xff)
+#define GET_G(pixel)	(((pixel) >> 8) & 0xff)
+#define GET_B(pixel)	(((pixel) >> 0) & 0xff)
+
+#define PACK_COLOR15(r, g, b) ((((r) & 0x1f) << 10) | (((g) & 0x1f) << 5) | ((b) & 0x1f))
+
+int save_image15(unsigned int *img, int x, int y, const char *fname, const char *array_name)
+{
+	int i, j;
+	FILE *fp;
+
+	if(!(fp = fopen(fname, "w"))) {
+		return -1;
+	}
+
+	fprintf(fp, "\nconst unsigned short %s[] = {\n", array_name);
+
+	for(j=0; j<y; j++) {
+		fprintf(fp, "\t");
+		for(i=0; i<x; i++) {
+			unsigned short r = GET_R(*img) >> 3;
+			unsigned short g = GET_G(*img) >> 3;
+			unsigned short b = GET_B(*img) >> 3;
+			unsigned short pixel15 = PACK_COLOR15(r, g, b);
+			fprintf(fp, "%u", pixel15);
+			if(i < x-1 || j < y-1) {
+				fprintf(fp, ", ");
+			}
+			img++;
+		}
+		fprintf(fp, "\n");
+	}
+
+	fprintf(fp, "};\n");
+
+	fclose(fp);
+	return 0;
+}