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ThomasFarstrikeThomasFarstrike
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micropython_stack_use() doesn't work
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‎c_mpos/src/quirc_decode.c‎

Lines changed: 30 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -4,37 +4,44 @@
44
#include "py/mperrno.h"
55
#include <string.h>
66
#include "../quirc/lib/quirc.h"
7+
#include "py/mpstate.h" // Added for micropython_stack_use()
78

89
#define QRDECODE_DEBUG_PRINT(...) mp_printf(&mp_plat_print, __VA_ARGS__);
910

1011
// Function to decode a QR code from a grayscale image buffer
1112
static mp_obj_t qrdecode(mp_uint_t n_args, const mp_obj_t *args) {
1213
QRDECODE_DEBUG_PRINT("qrdecode: Starting\n");
14+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
1315

1416
// Check argument count (expecting buffer, width, height)
1517
QRDECODE_DEBUG_PRINT("qrdecode: Checking argument count\n");
18+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
1619
fflush(stdout);
1720
if (n_args != 3) {
1821
mp_raise_ValueError(MP_ERROR_TEXT("quirc_decode expects 3 arguments: buffer, width, height"));
1922
}
2023

2124
// Extract buffer
2225
QRDECODE_DEBUG_PRINT("qrdecode: Extracting buffer\n");
26+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
2327
fflush(stdout);
2428
mp_buffer_info_t bufinfo;
2529
mp_get_buffer_raise(args[0], &bufinfo, MP_BUFFER_READ);
2630
printf("qrdecode: Buffer extracted, len=%zu\n", bufinfo.len);
2731

2832
// Extract width and height
2933
QRDECODE_DEBUG_PRINT("qrdecode: Extracting width and height\n");
34+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
3035
fflush(stdout);
3136
mp_int_t width = mp_obj_get_int(args[1]);
3237
mp_int_t height = mp_obj_get_int(args[2]);
3338
QRDECODE_DEBUG_PRINT("qrdecode: Width=%ld, Height=%ld\n", width, height);
39+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
3440
fflush(stdout);
3541

3642
// Validate dimensions
3743
QRDECODE_DEBUG_PRINT("qrdecode: Validating dimensions\n");
44+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
3845
fflush(stdout);
3946
if (width <= 0 || height <= 0) {
4047
mp_raise_ValueError(MP_ERROR_TEXT("width and height must be positive"));
@@ -43,50 +50,62 @@ static mp_obj_t qrdecode(mp_uint_t n_args, const mp_obj_t *args) {
4350
mp_raise_ValueError(MP_ERROR_TEXT("buffer size must match width * height"));
4451
}
4552
QRDECODE_DEBUG_PRINT("qrdecode: Dimensions validated\n");
53+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
4654
fflush(stdout);
4755

4856
// Initialize quirc
4957
QRDECODE_DEBUG_PRINT("qrdecode: Initializing quirc\n");
58+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
5059
fflush(stdout);
5160
struct quirc *qr = quirc_new();
5261
if (!qr) {
5362
mp_raise_OSError(MP_ENOMEM);
5463
}
5564
QRDECODE_DEBUG_PRINT("qrdecode: quirc initialized\n");
65+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
5666
fflush(stdout);
5767

5868
// Resize quirc for the image dimensions
5969
QRDECODE_DEBUG_PRINT("qrdecode: Resizing quirc\n");
70+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
6071
fflush(stdout);
6172
if (quirc_resize(qr, width, height) < 0) {
6273
quirc_destroy(qr);
6374
mp_raise_OSError(MP_ENOMEM);
6475
}
6576
QRDECODE_DEBUG_PRINT("qrdecode: quirc resized\n");
77+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
6678
fflush(stdout);
6779

6880
// Get quirc image buffer and copy grayscale data
6981
QRDECODE_DEBUG_PRINT("qrdecode: Beginning quirc processing\n");
82+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
7083
fflush(stdout);
7184
uint8_t *image;
7285
quirc_begin(qr, NULL, NULL);
7386
image = quirc_begin(qr, NULL, NULL); // Get pointer to quirc's image buffer
7487
QRDECODE_DEBUG_PRINT("qrdecode: quirc image buffer obtained\n");
88+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
7589
fflush(stdout);
7690
QRDECODE_DEBUG_PRINT("qrdecode: Copying buffer, size=%ul\n", (size_t)(width * height));
91+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
7792
fflush(stdout);
7893
memcpy(image, bufinfo.buf, width * height);
7994
QRDECODE_DEBUG_PRINT("qrdecode: Buffer copied\n");
95+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
8096
fflush(stdout);
8197
quirc_end(qr);
8298
QRDECODE_DEBUG_PRINT("qrdecode: quirc processing ended\n");
99+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
83100
fflush(stdout);
84101

85102
// Check for QR codes
86103
QRDECODE_DEBUG_PRINT("qrdecode: Counting QR codes\n");
104+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
87105
fflush(stdout);
88106
int count = quirc_count(qr);
89107
QRDECODE_DEBUG_PRINT("qrdecode: Found %d QR codes\n", count);
108+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
90109
fflush(stdout);
91110
if (count == 0) {
92111
quirc_destroy(qr);
@@ -96,15 +115,18 @@ static mp_obj_t qrdecode(mp_uint_t n_args, const mp_obj_t *args) {
96115

97116
// Extract and decode the first QR code
98117
QRDECODE_DEBUG_PRINT("qrdecode: Extracting first QR code\n");
118+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
99119
fflush(stdout);
100120
struct quirc_code code;
101121
quirc_extract(qr, 0, &code);
102122
QRDECODE_DEBUG_PRINT("qrdecode: QR code extracted\n");
123+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
103124
fflush(stdout);
104125
// it works until here!
105126
/*
106127
// Decode the QR code - this is the part that fails:
107128
QRDECODE_DEBUG_PRINT("qrdecode: Decoding QR code\n");
129+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
108130
fflush(stdout);
109131
struct quirc_data data;
110132
int err = quirc_decode(&code, &data);
@@ -113,28 +135,36 @@ static mp_obj_t qrdecode(mp_uint_t n_args, const mp_obj_t *args) {
113135
mp_raise_ValueError(MP_ERROR_TEXT("failed to decode QR code"));
114136
}
115137
QRDECODE_DEBUG_PRINT("qrdecode: QR code decoded, payload_len=%d\n", data.payload_len);
138+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
116139
fflush(stdout);
117140
118141
QRDECODE_DEBUG_PRINT("qrdecode: got result: %s\n", data.payload);
142+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
119143
fflush(stdout);
120144
QRDECODE_DEBUG_PRINT("ok so now what?!");
145+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
121146
122147
// Convert decoded data to Python string
123148
QRDECODE_DEBUG_PRINT("qrdecode: Creating Python string\n");
149+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
124150
fflush(stdout);
125151
mp_obj_t result = mp_obj_new_str((const char *)data.payload, data.payload_len);
126152
QRDECODE_DEBUG_PRINT("qrdecode: Python string created\n");
153+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
127154
fflush(stdout);
128155
129156
// Clean up
130157
QRDECODE_DEBUG_PRINT("qrdecode: Cleaning up\n");
158+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
131159
fflush(stdout);
132160
quirc_destroy(qr);
133161
QRDECODE_DEBUG_PRINT("qrdecode: quirc destroyed\n");
162+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
134163
fflush(stdout);
135164
*/
136165

137166
QRDECODE_DEBUG_PRINT("qrdecode: Returning result\n");
167+
mp_printf(&mp_plat_print, "qrdecode: Stack usage: %u bytes\n", micropython_stack_use());
138168
//return result;
139169
return mp_const_none; // MicroPython functions typically return None
140170
}

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