From 1d4b1d4e352a0c445d08e2e0a0df7060ffd88e83 Mon Sep 17 00:00:00 2001
From: NishiOwO <nishi@nishi.boats>
Date: Sun, 10 May 2026 06:25:27 +0900
Subject: [PATCH] rewrite in c

---
 tools/Makefile          |  7 +++++--
 tools/icon-converter.c  | 36 ++++++++++++++++++++++++++++++++++++
 tools/icon-converter.sh | 15 ---------------
 3 files changed, 41 insertions(+), 17 deletions(-)
 create mode 100644 tools/icon-converter.c
 delete mode 100755 tools/icon-converter.sh

diff --git a/tools/Makefile b/tools/Makefile
index 3bac0e6..036e365 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -6,7 +6,7 @@ LIBS = `pkg-config --libs freetype2`
 .PHONY: all clean
 .SUFFIXES: .c .o
 
-all: fuzzer font
+all: fuzzer font icon-converter icon-converter
 
 fuzzer: fuzzer.o
 	$(CC) -g -L../src/ -Wl,-R../src -o $@ fuzzer.o -lMw
@@ -14,8 +14,11 @@ fuzzer: fuzzer.o
 font: font.o
 	$(CC) $(LDFLAGS) -o $@ font.o $(LIBS)
 
+icon-converter: icon-converter.o
+	$(CC) -o $@ icon-converter.o -lm
+
 .c.o:
 	$(CC) $(CFLAGS) -c -o $@ $<
 
 clean:
-	rm -f *.o font fuzzer
+	rm -f *.o font fuzzer icon-converter
diff --git a/tools/icon-converter.c b/tools/icon-converter.c
new file mode 100644
index 0000000..0a3ece8
--- /dev/null
+++ b/tools/icon-converter.c
@@ -0,0 +1,36 @@
+#define STB_IMAGE_IMPLEMENTATION
+#include "../external/stb_image.h"
+
+#include <stdio.h>
+
+int main(int argc, char** argv){
+	unsigned char* rgba;
+	int width, height, bpp;
+	int i;
+
+	if(argc != 3){
+		printf("Usage: %s input name\n", argv[0]);
+		return 1;
+	}
+
+	rgba = stbi_load(argv[1], &width, &height, &bpp, 4);
+
+	printf("MwU32 %s[] = {\n", argv[2]);
+	printf("	(%d << 16) | %d,\n", width, height);
+	for(i = 0; i < width * height; i++){
+		unsigned char* px = &rgba[i * 4];
+		unsigned int p = 0;
+		int j;
+
+		for(j = 0; j < 4; j++){
+			p = p << 8;
+			p = p | px[j];
+		}
+
+		printf("	0x%x,\n", p);
+	}
+	printf("	0\n");
+	printf("};\n");
+
+	free(rgba);
+}
diff --git a/tools/icon-converter.sh b/tools/icon-converter.sh
deleted file mode 100755
index 9d96846..0000000
--- a/tools/icon-converter.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/sh
-if [ "x$1" = "x" -o "x$2" = "x" ]; then
-	echo "Usage: $0 input name"
-	exit 1
-fi
-
-GEO=`convert $1 json:- 2>/dev/null | jq -r '(.[0].image.geometry.width | tostring) + "x" + (.[0].image.geometry.height | tostring)'`
-WIDTH=`echo $GEO | cut -dx -f1`
-HEIGHT=`echo $GEO | cut -dx -f2`
-
-echo "MwU32 $2[] = {"
-echo "  ($WIDTH << 16) | $HEIGHT,"
-convert $1 txt:- 2>/dev/null | grep -oE '#[0-9a-fA-F]{8}' | sed 's/^#/  0x/' | sed -E 's/$/,/'
-echo "  0"
-echo "};"