IQ.Pilot Release Commit @ 0798119

system/hardware/tici/qr_decode_quirc.c

@@ -0,0 +1,68 @@
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "quirc.h"
+
+int iqpilot_decode_qr_gray(const uint8_t *gray, int width, int height, char *out, int out_len) {
+  if (gray == NULL || out == NULL || out_len <= 0 || width <= 0 || height <= 0) {
+    return -1;
+  }
+
+  struct quirc *qr = quirc_new();
+  if (qr == NULL) {
+    return -2;
+  }
+
+  if (quirc_resize(qr, width, height) < 0) {
+    quirc_destroy(qr);
+    return -3;
+  }
+
+  int qw = 0, qh = 0;
+  uint8_t *image = quirc_begin(qr, &qw, &qh);
+  if (image == NULL || qw != width || qh != height) {
+    quirc_destroy(qr);
+    return -4;
+  }
+
+  memcpy(image, gray, (size_t)(width * height));
+  quirc_end(qr);
+
+  int total = quirc_count(qr);
+  int decoded_count = 0;
+  int write_pos = 0;
+
+  for (int i = 0; i < total; ++i) {
+    struct quirc_code code;
+    struct quirc_data data;
+    quirc_extract(qr, i, &code);
+
+    if (quirc_decode(&code, &data) != QUIRC_SUCCESS || data.payload_len == 0) {
+      continue;
+    }
+
+    if (write_pos > 0) {
+      if (write_pos + 1 >= out_len) {
+        break;
+      }
+      out[write_pos++] = '\n';
+    }
+
+    int copy_len = data.payload_len;
+    if (copy_len > out_len - write_pos - 1) {
+      copy_len = out_len - write_pos - 1;
+    }
+    if (copy_len <= 0) {
+      break;
+    }
+
+    memcpy(out + write_pos, data.payload, (size_t)copy_len);
+    write_pos += copy_len;
+    decoded_count++;
+  }
+
+  out[write_pos] = '\0';
+  quirc_destroy(qr);
+  return decoded_count;
+}