m5/MicroPythonOS
0
0
Fork 0
mirror of https://github.com/m5stack/MicroPythonOS.git synced 2026-05-20 11:51:27 -07:00
Code Issues Packages Projects Releases Wiki Activity

quirc_decode: add debug and fix warnings

Browse Source
This commit is contained in:
Thomas Farstrike
2025-05-12 18:08:32 +02:00
parent 57383828db
commit ddb1167bdd
1 changed files with 39 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
c_mpos/src/quirc_decode.c
+39 -7
View File
@@ -1,84 +1,116 @@
#include "py/obj.h"
#include "py/runtime.h"
#include "py/mperrno.h"
#include <string.h>
#include "../quirc/lib/quirc.h"
// Function to decode a QR code from a grayscale image buffer
static mp_obj_t qrdecode(mp_uint_t n_args, const mp_obj_t *args) {
printf("qrdecode running\n")
printf("qrdecode: Starting\n");
// Check argument count (expecting buffer, width, height)
printf("qrdecode: Checking argument count\n");
if (n_args != 3) {
mp_raise_ValueError(MP_ERROR_TEXT("quirc_decode expects 3 arguments: buffer, width, height"));
}
// Extract buffer
printf("qrdecode: Extracting buffer\n");
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(args[0], &bufinfo, MP_BUFFER_READ);
printf("qrdecode: Buffer extracted, len=%zu\n", bufinfo.len);
// Extract width and height
printf("qrdecode: Extracting width and height\n");
mp_int_t width = mp_obj_get_int(args[1]);
mp_int_t height = mp_obj_get_int(args[2]);
printf("qrdecode: Width=%ld, Height=%ld\n", width, height);
// Validate dimensions
printf("qrdecode: Validating dimensions\n");
if (width <= 0 || height <= 0) {
mp_raise_ValueError(MP_ERROR_TEXT("width and height must be positive"));
}
if (bufinfo.len != (size_t)(width * height)) {
mp_raise_ValueError(MP_ERROR_TEXT("buffer size must match width * height"));
}
printf("qrdecode: Dimensions validated\n");
// Initialize quirc
printf("qrdecode: Initializing quirc\n");
struct quirc *qr = quirc_new();
if (!qr) {
mp_raise_OSError(MP_ENOMEM);
}
printf("qrdecode: quirc initialized\n");
// Resize quirc for the image dimensions
printf("qrdecode: Resizing quirc\n");
if (quirc_resize(qr, width, height) < 0) {
quirc_destroy(qr);
mp_raise_OSError(MP_ENOMEM);
}
printf("qrdecode: quirc resized\n");
// Get quirc image buffer and copy grayscale data
printf("qrdecode: Beginning quirc processing\n");
uint8_t *image;
quirc_begin(qr, NULL, NULL);
image = quirc_begin(qr, NULL, NULL); // Get pointer to quirc's image buffer
memcpy(image, bufinfo.buf, width * height); // Copy buffer directly (grayscale, 8-bit)
printf("qrdecode: quirc image buffer obtained\n");
printf("qrdecode: Copying buffer, size=%zu\n", (size_t)(width * height));
memcpy(image, bufinfo.buf, width * height);
printf("qrdecode: Buffer copied\n");
quirc_end(qr);
printf("qrdecode: quirc processing ended\n");
// Check for QR codes
printf("qrdecode: Counting QR codes\n");
int count = quirc_count(qr);
printf("qrdecode: Found %d QR codes\n", count);
if (count == 0) {
quirc_destroy(qr);
mp_raise_ValueError(MP_ERROR_TEXT("no QR code found"));
}
// Extract and decode the first QR code
printf("qrdecode: Extracting first QR code\n");
struct quirc_code code;
struct quirc_data data;
quirc_extract(qr, 0, &code); // Extract first QR code
quirc_extract(qr, 0, &code);
printf("qrdecode: QR code extracted\n");
// Decode the QR code
printf("qrdecode: Decoding QR code\n");
struct quirc_data data;
int err = quirc_decode(&code, &data);
if (err != QUIRC_SUCCESS) {
quirc_destroy(qr);
mp_raise_ValueError(MP_ERROR_TEXT("failed to decode QR code"));
}
printf("qrdecode: QR code decoded, payload_len=%d\n", data.payload_len);
// Convert decoded data to Python string
printf("qrdecode: Creating Python string\n");
mp_obj_t result = mp_obj_new_str((const char *)data.payload, data.payload_len);
printf("qrdecode: Python string created\n");
// Clean up
printf("qrdecode: Cleaning up\n");
quirc_destroy(qr);
printf("qrdecode: quirc destroyed\n");
printf("qrdecode: Returning result\n");
return result;
}
// Wrapper function to fix incompatible pointer type warning
static mp_obj_t qrdecode_wrapper(size_t n_args, const mp_obj_t *args) {
printf("qrdecode_wrapper: Called with %zu args\n", n_args);
return qrdecode(n_args, args);
}
// Define the MicroPython function
static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(qrdecode_obj, 3, 3, qrdecode);
static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(qrdecode_obj, 3, 3, qrdecode_wrapper);
// Module definition
static const mp_rom_map_elem_t qrdecode_module_globals_table[] = {