IQ.Pilot Release Commit @ 0798119

third_party/quirc/lib/quirc_internal.h

@@ -0,0 +1,127 @@
+#ifndef QUIRC_INTERNAL_H_
+#define QUIRC_INTERNAL_H_
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "quirc.h"
+
+#define QUIRC_ASSERT(a)	assert(a)
+
+#define QUIRC_PIXEL_WHITE	0
+#define QUIRC_PIXEL_BLACK	1
+#define QUIRC_PIXEL_REGION	2
+
+#ifndef QUIRC_MAX_REGIONS
+#define QUIRC_MAX_REGIONS	254
+#endif
+#define QUIRC_MAX_CAPSTONES	32
+#define QUIRC_MAX_GRIDS		(QUIRC_MAX_CAPSTONES * 2)
+
+#define QUIRC_PERSPECTIVE_PARAMS	8
+
+#if QUIRC_MAX_REGIONS < UINT8_MAX
+#define QUIRC_PIXEL_ALIAS_IMAGE	1
+typedef uint8_t quirc_pixel_t;
+#elif QUIRC_MAX_REGIONS < UINT16_MAX
+#define QUIRC_PIXEL_ALIAS_IMAGE	0
+typedef uint16_t quirc_pixel_t;
+#else
+#error "QUIRC_MAX_REGIONS > 65534 is not supported"
+#endif
+
+#ifdef QUIRC_FLOAT_TYPE
+/* Quirc uses double precision floating point internally by default.
+ * On platforms with a single precision FPU but no double precision FPU,
+ * this can be changed to float by defining QUIRC_FLOAT_TYPE.
+ *
+ * When setting QUIRC_FLOAT_TYPE to 'float', consider also defining QUIRC_USE_TGMATH.
+ * This will use the type-generic math functions (tgmath.h, C99 or later) instead of the normal ones,
+ * which will allow the compiler to use the correct overloaded functions for the type.
+ */
+typedef QUIRC_FLOAT_TYPE quirc_float_t;
+#else
+typedef double quirc_float_t;
+#endif
+
+struct quirc_region {
+	struct quirc_point	seed;
+	int			count;
+	int			capstone;
+};
+
+struct quirc_capstone {
+	int			ring;
+	int			stone;
+
+	struct quirc_point	corners[4];
+	struct quirc_point	center;
+	quirc_float_t		c[QUIRC_PERSPECTIVE_PARAMS];
+
+	int			qr_grid;
+};
+
+struct quirc_grid {
+	/* Capstone indices */
+	int			caps[3];
+
+	/* Alignment pattern region and corner */
+	int			align_region;
+	struct quirc_point	align;
+
+	/* Timing pattern endpoints */
+	struct quirc_point	tpep[3];
+
+	/* Grid size and perspective transform */
+	int			grid_size;
+	quirc_float_t		c[QUIRC_PERSPECTIVE_PARAMS];
+};
+
+struct quirc_flood_fill_vars {
+	int y;
+	int right;
+	int left_up;
+	int left_down;
+};
+
+struct quirc {
+	uint8_t			*image;
+	quirc_pixel_t		*pixels;
+	int			w;
+	int			h;
+
+	int			num_regions;
+	struct quirc_region	regions[QUIRC_MAX_REGIONS];
+
+	int			num_capstones;
+	struct quirc_capstone	capstones[QUIRC_MAX_CAPSTONES];
+
+	int			num_grids;
+	struct quirc_grid	grids[QUIRC_MAX_GRIDS];
+
+	size_t      		num_flood_fill_vars;
+	struct quirc_flood_fill_vars *flood_fill_vars;
+};
+
+/************************************************************************
+ * QR-code version information database
+ */
+
+#define QUIRC_MAX_VERSION     40
+#define QUIRC_MAX_ALIGNMENT   7
+
+struct quirc_rs_params {
+	int             bs; /* Small block size */
+	int             dw; /* Small data words */
+	int		ns; /* Number of small blocks */
+};
+
+struct quirc_version_info {
+	int				data_bytes;
+	int				apat[QUIRC_MAX_ALIGNMENT];
+	struct quirc_rs_params          ecc[4];
+};
+
+extern const struct quirc_version_info quirc_version_db[QUIRC_MAX_VERSION + 1];
+
+#endif