pure sdk for main

2025-08-27 09:51:58 +01:00
parent f0d033f1c9
commit 0571416e7c
3283 changed files with 1577720 additions and 1 deletions
@@ -0,0 +1,143 @@
+/*------------------------------------------------------------------------
+ *  Copyright 2007-2010 (c) Jeff Brown <spadix@users.sourceforge.net>
+ *
+ *  This file is part of the ZBar Bar Code Reader.
+ *
+ *  The ZBar Bar Code Reader is free software; you can redistribute it
+ *  and/or modify it under the terms of the GNU Lesser Public License as
+ *  published by the Free Software Foundation; either version 2.1 of
+ *  the License, or (at your option) any later version.
+ *
+ *  The ZBar Bar Code Reader is distributed in the hope that it will be
+ *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ *  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser Public License
+ *  along with the ZBar Bar Code Reader; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ *  Boston, MA  02110-1301  USA
+ *
+ *  http://sourceforge.net/projects/zbar
+ *------------------------------------------------------------------------*/
+#ifndef _IMAGE_H_
+#define _IMAGE_H_
+
+#include <zbar_config.h>
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#include <stdlib.h>
+#include <assert.h>
+
+#include <zbar.h>
+#include "error.h"
+#include "symbol.h"
+#include "refcnt.h"
+
+#define fourcc zbar_fourcc
+
+/* unpack size/location of component */
+#define RGB_SIZE(c)   ((c) >> 5)
+#define RGB_OFFSET(c) ((c) & 0x1f)
+
+/* coarse image format categorization.
+ * to limit conversion variations
+ */
+typedef enum zbar_format_group_e {
+    ZBAR_FMT_GRAY,
+    ZBAR_FMT_YUV_PLANAR,
+    ZBAR_FMT_YUV_PACKED,
+    ZBAR_FMT_RGB_PACKED,
+    ZBAR_FMT_YUV_NV,
+    ZBAR_FMT_JPEG,
+
+    /* enum size */
+    ZBAR_FMT_NUM
+} zbar_format_group_t;
+
+
+struct zbar_image_s {
+    uint32_t format;            /* fourcc image format code */
+    unsigned width, height;     /* image size */
+    const void *data;           /* image sample data */
+    unsigned long datalen;      /* allocated/mapped size of data */
+    unsigned crop_x, crop_y;    /* crop rectangle */
+    unsigned crop_w, crop_h;
+    void *userdata;             /* user specified data associated w/image */
+
+    /* cleanup handler */
+    zbar_image_cleanup_handler_t *cleanup;
+    refcnt_t refcnt;            /* reference count */
+    zbar_video_t *src;          /* originator */
+    int srcidx;                 /* index used by originator */
+    zbar_image_t *next;         /* internal image lists */
+
+    unsigned seq;               /* page/frame sequence number */
+    zbar_symbol_set_t *syms;    /* decoded result set */
+    unsigned char *tmp_buf;     //增加一个buf,由外部去申请释放,空间统一由外面管理
+};
+
+/* description of an image format */
+typedef struct zbar_format_def_s {
+    uint32_t format;                    /* fourcc */
+    zbar_format_group_t group;          /* coarse categorization */
+    union {
+        uint8_t gen[4];                 /* raw bytes */
+        struct {
+            uint8_t bpp;                /* bits per pixel */
+            uint8_t red, green, blue;   /* size/location a la RGB_BITS() */
+        } rgb;
+        struct {
+            uint8_t xsub2, ysub2;       /* chroma subsampling in each axis */
+            uint8_t packorder;          /* channel ordering flags
+                                         *   bit0: 0=UV, 1=VU
+                                         *   bit1: 0=Y/chroma, 1=chroma/Y
+                                         */
+        } yuv;
+        uint32_t cmp;                   /* quick compare equivalent formats */
+    } p;
+} zbar_format_def_t;
+
+
+extern int _zbar_best_format(uint32_t, uint32_t*, const uint32_t*);
+extern const zbar_format_def_t *_zbar_format_lookup(uint32_t);
+extern void _zbar_image_free(zbar_image_t*);
+
+#ifdef DEBUG_SVG
+extern int zbar_image_write_png(const zbar_image_t*, const char*);
+#else
+# define zbar_image_write_png(...)
+#endif
+
+static inline void _zbar_image_refcnt (zbar_image_t *img,
+                                       int delta)
+{
+    if(!_zbar_refcnt(&img->refcnt, delta) && delta <= 0) {
+        if(img->cleanup)
+            img->cleanup(img);
+        if(!img->src)
+            _zbar_image_free(img);
+    }
+}
+
+static inline void _zbar_image_swap_symbols (zbar_image_t *a,
+                                             zbar_image_t *b)
+{
+    zbar_symbol_set_t *tmp = a->syms;
+    a->syms = b->syms;
+    b->syms = tmp;
+}
+
+static inline void _zbar_image_copy_size (zbar_image_t *dst,
+                                          const zbar_image_t *src)
+{
+    dst->width = src->width;
+    dst->height = src->height;
+    dst->crop_x = src->crop_x;
+    dst->crop_y = src->crop_y;
+    dst->crop_w = src->crop_w;
+    dst->crop_h = src->crop_h;
+}
+
+#endif