Merge remote-tracking branch 'libqr/master'

9 files changed, 290 insertions, 0 deletions

diff --git a/lpg/libqr/qr/bitmap.h b/lpg/libqr/qr/bitmap.h
new file mode 100644
index 0000000..098d9c3
--- /dev/null
+++ b/lpg/libqr/qr/bitmap.h
@@ -0,0 +1,37 @@
+#ifndef QR_BITMAP_H
+#define QR_BITMAP_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct qr_bitmap {
+        unsigned char * bits;
+        unsigned char * mask;
+        size_t stride;
+        size_t width, height;
+};
+
+struct qr_bitmap * qr_bitmap_create(size_t width, size_t height, int masked);
+void qr_bitmap_destroy(struct qr_bitmap *);
+
+int qr_bitmap_add_mask(struct qr_bitmap *);
+
+struct qr_bitmap * qr_bitmap_clone(const 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,
+                      int                      mod_bits,
+                      long                     line_stride,
+                      int                      line_repeat,
+                      unsigned long            mark,
+                      unsigned long            space);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/lpg/libqr/qr/bitstream.h b/lpg/libqr/qr/bitstream.h
new file mode 100644
index 0000000..aa431e8
--- /dev/null
+++ b/lpg/libqr/qr/bitstream.h
@@ -0,0 +1,57 @@
+#ifndef QR_BITSTREAM_H
+#define QR_BITSTREAM_H
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Note: when writing / reading multiple bits, the
+ * _most_ significant bits come first in the stream.
+ * (That is, the order you would naturally write the
+ * number in binary)
+ */
+
+struct qr_bitstream;
+
+struct qr_bitstream * qr_bitstream_create(void);
+int qr_bitstream_resize(struct qr_bitstream *, size_t bits);
+void qr_bitstream_destroy(struct qr_bitstream *);
+struct qr_bitstream * qr_bitstream_dup(const struct qr_bitstream *);
+
+void qr_bitstream_seek(struct qr_bitstream *, size_t pos);
+size_t qr_bitstream_tell(const struct qr_bitstream *);
+size_t qr_bitstream_remaining(const struct qr_bitstream *);
+size_t qr_bitstream_size(const struct qr_bitstream *);
+
+unsigned long qr_bitstream_read(struct qr_bitstream *, int bits);
+
+void qr_bitstream_unpack(struct qr_bitstream *,
+                         unsigned int * result,
+                         size_t         count,
+                         int            bitsize);
+
+int qr_bitstream_write(struct qr_bitstream *,
+                       unsigned long value,
+                       int bits);
+
+int qr_bitstream_pack(struct qr_bitstream *,
+                      const unsigned int * values,
+                      size_t               count,
+                      int                  bitsize);
+
+int qr_bitstream_cat(struct qr_bitstream *,
+                     const struct qr_bitstream * src);
+
+int qr_bitstream_copy(struct qr_bitstream * dest,
+                      struct qr_bitstream * src,
+                      size_t count);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/lpg/libqr/qr/code.h b/lpg/libqr/qr/code.h
new file mode 100644
index 0000000..0f5d49c
--- /dev/null
+++ b/lpg/libqr/qr/code.h
@@ -0,0 +1,25 @@
+#ifndef QR_CODE_H
+#define QR_CODE_H
+
+#include <stddef.h>
+#include "types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct qr_code {
+        int                version;
+        struct qr_bitmap * modules;
+};
+
+struct qr_code * qr_code_create(const struct qr_data * data);
+
+void qr_code_destroy(struct qr_code *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/lpg/libqr/qr/common.h b/lpg/libqr/qr/common.h
new file mode 100644
index 0000000..b7052ad
--- /dev/null
+++ b/lpg/libqr/qr/common.h
@@ -0,0 +1,32 @@
+#ifndef QR_COMMON_H
+#define QR_COMMON_H
+
+#include <qr/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void qr_mask_apply(struct qr_bitmap * bmp, int mask);
+
+size_t qr_code_total_capacity(int version);
+
+int qr_code_width(const struct qr_code *);
+
+/* See table 19 of the spec for the layout of EC data. There are at
+ * most two different block lengths, so the total number of data+ec
+ * blocks is the sum of block_count[]. The total number of 8-bit
+ * words in each kind of block is data_length + ec_length.
+ */
+void qr_get_rs_block_sizes(int version,
+                           enum qr_ec_level ec,
+                           int block_count[2],
+                           int data_length[2],
+                           int ec_length[2]);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/lpg/libqr/qr/data.h b/lpg/libqr/qr/data.h
new file mode 100644
index 0000000..06600ab
--- /dev/null
+++ b/lpg/libqr/qr/data.h
@@ -0,0 +1,41 @@
+#ifndef QR_DATA_H
+#define QR_DATA_H
+
+#include <stddef.h>
+#include "types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct qr_data {
+        int                   version; /* 1 ~ 40 */
+        enum qr_ec_level      ec;
+        struct qr_bitstream * bits;
+        size_t                offset;
+};
+
+struct qr_data * qr_data_create(int               format, /* 1 ~ 40; 0=auto */
+                                enum qr_ec_level  ec,
+                                enum qr_data_type type,
+                                const char *      input,
+                                size_t            length);
+
+void qr_data_destroy(struct qr_data *);
+
+enum qr_data_type qr_data_type(const struct qr_data *);
+
+size_t qr_data_length(const struct qr_data *);
+size_t qr_data_size_field_length(int version, enum qr_data_type);
+size_t qr_data_dpart_length(enum qr_data_type type, size_t nchars);
+
+enum qr_data_type qr_parse_data(const struct qr_data * input,
+                                char **                output,
+                                size_t *               length);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/lpg/libqr/qr/layout.h b/lpg/libqr/qr/layout.h
new file mode 100644
index 0000000..e691bdb
--- /dev/null
+++ b/lpg/libqr/qr/layout.h
@@ -0,0 +1,22 @@
+#ifndef QR_CODE_LAYOUT_H
+#define QR_CODE_LAYOUT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct qr_iterator;
+
+void qr_layout_init_mask(struct qr_code *);
+
+struct qr_iterator * qr_layout_begin(struct qr_code * code);
+unsigned int qr_layout_read(struct qr_iterator *);
+void qr_layout_write(struct qr_iterator *, unsigned int);
+void qr_layout_end(struct qr_iterator *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/lpg/libqr/qr/parse.h b/lpg/libqr/qr/parse.h
new file mode 100644
index 0000000..0e08354
--- /dev/null
+++ b/lpg/libqr/qr/parse.h
@@ -0,0 +1,24 @@
+#ifndef QR_PARSE_H
+#define QR_PARSE_H
+
+#include "data.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int qr_code_parse(const void *      buffer,
+                  size_t            line_bits,
+                  size_t            line_stride,
+                  size_t            line_count,
+                  struct qr_data ** data);
+
+int qr_decode_format(unsigned long bits, enum qr_ec_level * ec, int * mask);
+int qr_decode_version(unsigned long bits, int * version);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/lpg/libqr/qr/types.h b/lpg/libqr/qr/types.h
new file mode 100644
index 0000000..ae760ab
--- /dev/null
+++ b/lpg/libqr/qr/types.h
@@ -0,0 +1,34 @@
+#ifndef QR_TYPES_H
+#define QR_TYPES_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct qr_data;
+struct qr_code;
+
+enum qr_data_type {
+        QR_DATA_INVALID = -1,
+        QR_DATA_ECI     =  7,
+        QR_DATA_NUMERIC =  1,
+        QR_DATA_ALPHA   =  2,
+        QR_DATA_8BIT    =  4,
+        QR_DATA_KANJI   =  8, /* JIS X 0208 */
+        QR_DATA_MIXED   =  3,
+        QR_DATA_FNC1    =  9
+};
+
+enum qr_ec_level {
+        QR_EC_LEVEL_L = 0x1,
+        QR_EC_LEVEL_M = 0x0,
+        QR_EC_LEVEL_Q = 0x3,
+        QR_EC_LEVEL_H = 0x2
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/lpg/libqr/qr/version.h b/lpg/libqr/qr/version.h
new file mode 100644
index 0000000..ce540f4
--- /dev/null
+++ b/lpg/libqr/qr/version.h
@@ -0,0 +1,18 @@
+#ifndef QR_VERSION_H
+#define QR_VERSION_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define QR_VERSION_MAJOR 0
+#define QR_VERSION_MINOR 3
+
+#define QR_VERSION "0.3"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+