bitmap handling routines

1 files changed, 29 insertions, 0 deletions

diff --git a/lpg/libqr/qr-bitmap.h b/lpg/libqr/qr-bitmap.h
new file mode 100644
index 0000000..d60049a
--- /dev/null
+++ b/lpg/libqr/qr-bitmap.h
@@ -0,0 +1,29 @@
+#ifndef QR_BITMAP_H
+#define QR_BITMAP_H
+
+struct qr_bitmap {
+        unsigned char * bits;
+        unsigned char * mask;
+        size_t stride;
+        size_t width, height;
+};
+
+struct qr_bitmap * qr_bitmap_create(int width, int height, int masked);
+void qr_bitmap_destroy(struct qr_bitmap *);
+
+void qr_bitmap_merge(struct qr_bitmap * dest, const struct qr_bitmap * src);
+
+void qr_bitmap_render(const struct qr_bitmap * bmp,
+                      void *                   buffer,
+                      size_t                   mod_bits,
+                      size_t                   line_stride,
+                      size_t                   line_repeat,
+                      unsigned long            mark,
+                      unsigned long            space);
+
+int qr_bitmap_write_pbm(const char *             path,
+                        const char *             comment,
+                        const struct qr_bitmap * bmp);
+
+#endif
+