build a shared library and rework parts of the code

1 files changed, 84 insertions, 0 deletions

diff --git a/lib/libcqrlogo.h b/lib/libcqrlogo.h
new file mode 100644
index 0000000..8ce04f2
--- /dev/null
+++ b/lib/libcqrlogo.h
@@ -0,0 +1,84 @@
+/*
+ * (C) 2013-2014 by Christian Hesse <mail@eworm.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ */
+
+#ifndef _LIBCQRLOGO_H
+#define _LIBCQRLOGO_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <stdbool.h>
+
+#include <png.h>
+#include <zlib.h>
+#include <qrencode.h>
+#include <iniparser.h>
+
+/* a bitmap */
+struct bitmap_t {
+	unsigned int width;
+	unsigned int height;
+	uint8_t *pixel;
+};
+
+/* finished PNG image */
+struct png_t {
+	unsigned char * buffer;
+	size_t size;
+};
+
+/* config */
+struct cqrconf_t {
+	uint8_t scale;
+	uint8_t border;
+	uint8_t level;
+	bool overwrite;
+};
+
+#define CQR_COMMENT	0x1
+#define CQR_REFERER	0x2
+#define CQR_VERSION	0x4
+#define CQR_LIBVERSION	0x8
+
+#define VERSIONSTR	VERSION " (" __DATE__ ", " __TIME__ ")"
+#define LIBSSTR		"libqrencode %s, libpng %s, zlib %s"
+
+/*** png_write_stdout ***/
+void png_write_fn(png_structp png_ptr, png_bytep data, png_size_t length);
+
+#if defined PNG_TEXT_SUPPORTED
+/*** add_png_text ***/
+png_text * add_png_text(png_text *pngtext, unsigned int *textcount, char *key, char *text);
+#endif
+
+/*** generate_png ***/
+struct png_t * generate_png (struct bitmap_t *bitmap, const uint8_t meta, const char *uri);
+
+/*** bitmap_new ***/
+struct bitmap_t * bitmap_new(int width, int height);
+/*** bitmap_free ***/
+void bitmap_free(struct bitmap_t * bitmap);
+
+/*** encode_qrcode ***/
+struct bitmap_t * encode_qrcode (const char *text, const struct cqrconf_t);
+
+/*** get_query_value ***/
+unsigned int get_query_value(const char *query_string, const char *pattern,
+	unsigned int value, unsigned int min, unsigned int max);
+/*** get_ini_value ***/
+unsigned int get_ini_value(dictionary * ini, uint8_t type, const char * section, const char * parameter,
+	unsigned int value, unsigned int min, unsigned int max);
+
+/*** cqrconf_file ***/
+void cqrconf_file(const char * server_name, struct cqrconf_t * cqrconf);
+/*** cqrconf_string ***/
+void cqrconf_string(const char * query_string, struct cqrconf_t * cqrconf);
+
+#endif /* _LIBCQRLOGO_H */
+
+// vim: set syntax=c: