macro MKF_INFO to show the number of chunks in mkf

- also add an mkf parser

2 files changed, 48 insertions, 0 deletions

diff --git a/csrc/mkf.c b/csrc/mkf.c
index f7ee4a4..e0e1375 100644
--- a/csrc/mkf.c
+++ b/csrc/mkf.c
@@ -20,6 +20,15 @@ struct mkf
 };
 struct mkf mkf_stdata[16] = { { NULL_HND, NULL } }; // 0x4762f4
 
+#ifdef MKF_INFO
+static int mkfc[16];
+
+int mkf_nchunks(int i)
+{
+	return mkfc[i];
+}
+#endif
+
 int load_mkf(const char *fn)
 {
 	int i;
@@ -44,6 +53,9 @@ int load_mkf(const char *fn)
 	fseek(fp, x, SEEK_SET);
 	mkf_stdata[i].data = malloc(t);
 	fread(mkf_stdata[i].data, 1, t, fp);
+#ifdef MKF_INFO
+	mkfc[i] = t / 4;
+#endif
 	return i;
 }
 
diff --git a/csrc/test/parse_mkf.c b/csrc/test/parse_mkf.c
new file mode 100644
index 0000000..1ff8130
--- /dev/null
+++ b/csrc/test/parse_mkf.c
@@ -0,0 +1,36 @@
+/* gcc -m32 -I.. -DMKF_INFO=1 parse_mkf.c ../mkf.c ../mkf_00455040.c -o parse_mkf */
+
+#include <stdio.h>
+#include <stdint.h>
+#include "mkf.h"
+
+struct mkf
+{
+	FILE *handle;
+	void *data;
+};
+int pixel_fmt = 1;
+extern struct mkf mkf_stdata[];
+int mkf_nchunks(int idx);
+
+int main(int argc, char *argv[])
+{
+	if (argc < 2)
+		return 1;
+
+	int mkf = load_mkf(argv[1]);
+	FILE *fp = mkf_stdata[mkf].handle;
+	int nchunks = mkf_nchunks(mkf);
+	uint32_t *data = mkf_stdata[mkf].data;
+
+	for (int i = 0; i < nchunks; i++) {
+		printf("chunk %d: offset = 0x%08x\n", i, data[i]);
+		fseek(fp, data[i], SEEK_SET);
+		uint32_t meta[4];
+		fread(meta, 4, 4, fp);
+		printf("real size = %d, original size = %d, gdata offset = 0x%08x, gsize = %d\n",
+				meta[0], meta[1], meta[2], meta[3]);
+	}
+
+	unload_mkf(mkf);
+}