add circuitpython code

1 files changed, 137 insertions, 0 deletions

diff --git a/circuitpython/shared-module/qrio/QRDecoder.c b/circuitpython/shared-module/qrio/QRDecoder.c
new file mode 100644
index 0000000..26a609f
--- /dev/null
+++ b/circuitpython/shared-module/qrio/QRDecoder.c
@@ -0,0 +1,137 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Jeff Epler for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <string.h>
+
+#include "py/gc.h"
+#include "py/objnamedtuple.h"
+#include "shared-bindings/qrio/__init__.h"
+#include "shared-bindings/qrio/QRInfo.h"
+#include "shared-module/qrio/QRDecoder.h"
+
+void shared_module_qrio_qrdecoder_construct(qrdecoder_qrdecoder_obj_t *self, int width, int height) {
+    self->quirc = quirc_new();
+    quirc_resize(self->quirc, width, height);
+}
+
+int shared_module_qrio_qrdecoder_get_height(qrdecoder_qrdecoder_obj_t *self) {
+    int height;
+    quirc_begin(self->quirc, NULL, &height);
+    return height;
+}
+
+int shared_module_qrio_qrdecoder_get_width(qrdecoder_qrdecoder_obj_t *self) {
+    int width;
+    quirc_begin(self->quirc, &width, NULL);
+    return width;
+}
+void shared_module_qrio_qrdecoder_set_height(qrdecoder_qrdecoder_obj_t *self, int height) {
+    if (height != shared_module_qrio_qrdecoder_get_height(self)) {
+        int width = shared_module_qrio_qrdecoder_get_width(self);
+        quirc_resize(self->quirc, width, height);
+    }
+}
+
+void shared_module_qrio_qrdecoder_set_width(qrdecoder_qrdecoder_obj_t *self, int width) {
+    if (width != shared_module_qrio_qrdecoder_get_width(self)) {
+        int height = shared_module_qrio_qrdecoder_get_height(self);
+        quirc_resize(self->quirc, width, height);
+    }
+}
+
+STATIC mp_obj_t data_type(int type) {
+    switch (type) {
+        case QUIRC_ECI_ISO_8859_1:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_iso_8859_hyphen_1);
+        case QUIRC_ECI_IBM437:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_cp437);
+        case QUIRC_ECI_ISO_8859_2:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_iso_8859_hyphen_2);
+        case QUIRC_ECI_ISO_8859_3:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_iso_8859_hyphen_3);
+        case QUIRC_ECI_ISO_8859_4:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_iso_8859_hyphen_4);
+        case QUIRC_ECI_ISO_8859_5:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_iso_8859_hyphen_5);
+        case QUIRC_ECI_ISO_8859_6:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_iso_8859_hyphen_6);
+        case QUIRC_ECI_ISO_8859_7:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_iso_8859_hyphen_7);
+        case QUIRC_ECI_ISO_8859_8:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_iso_8859_hyphen_8);
+        case QUIRC_ECI_ISO_8859_9:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_iso_8859_hyphen_9);
+        case QUIRC_ECI_WINDOWS_874:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_cp874);
+        case QUIRC_ECI_ISO_8859_13:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_iso_8859_hyphen_13);
+        case QUIRC_ECI_ISO_8859_15:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_iso_8859_hyphen_15);
+        case QUIRC_ECI_SHIFT_JIS:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_shift_underscore_jis);
+        case QUIRC_ECI_UTF_8:
+            return MP_OBJ_NEW_QSTR(MP_QSTR_utf_hyphen_8);
+    }
+    return mp_obj_new_int(type);
+}
+
+mp_obj_t shared_module_qrio_qrdecoder_decode(qrdecoder_qrdecoder_obj_t *self, const mp_buffer_info_t *bufinfo, qrio_pixel_policy_t policy) {
+    int width, height;
+    uint8_t *framebuffer = quirc_begin(self->quirc, &width, &height);
+    uint8_t *src = bufinfo->buf;
+
+    switch (policy) {
+        case QRIO_EVERY_BYTE:
+            memcpy(framebuffer, src, width * height);
+            break;
+
+        case QRIO_ODD_BYTES:
+            src++;
+            MP_FALLTHROUGH;
+
+        case QRIO_EVEN_BYTES:
+            for (int i = 0; i < width * height; i++) {
+                framebuffer[i] = src[2 * i];
+            }
+    }
+    quirc_end(self->quirc);
+
+    int count = quirc_count(self->quirc);
+    mp_obj_t result = mp_obj_new_list(0, NULL);
+    for (int i = 0; i < count; i++) {
+        quirc_extract(self->quirc, i, &self->code);
+        if (quirc_decode(&self->code, &self->data) != QUIRC_SUCCESS) {
+            continue;
+        }
+        mp_obj_t elems[2] = {
+            mp_obj_new_bytes(self->data.payload, self->data.payload_len),
+            data_type(self->data.data_type),
+        };
+        mp_obj_t code_obj = namedtuple_make_new((const mp_obj_type_t *)&qrio_qrinfo_type_obj, 2, 0, elems);
+        mp_obj_list_append(result, code_obj);
+    }
+    return result;
+}