convolution 30 % done and crop still buggy

pgm.c

@@ -141,21 +141,52 @@ pgm_error pgm_crop(pgm *crop, const pgm *const orig, int32_t x0, int32_t x1, int
     if (x0 < 0 || y0 < 0 || x0 > x1 || y0 > y1 || x1 > orig->pixels.l || y1 > orig->pixels.l){
         return failure;
     }
-
-
+    //Still buggy for rectangles 
     int l = x1 - x0;
     int c = y1 - y0;
     crop->max = 255;
     matrix_alloc(&crop->pixels, l, c);
-
     for (int i = x0, k = 0; i < x1; i++, k++){
-        for (int j = y0, m = 0; j < y1; j++, m++){  
+        for (int j = y0, m = 0; j < y1; j++, m++){ 
             crop->pixels.data[k][m] = orig->pixels.data[i][j];
         }
     }
     return success;
 }
 
-/*
-pgm_error pmg_conv(pgm *conv, const pgm *const orig, const matrix *const kernel);
-*/
+pgm_error add_zeros_in_pgm(pgm *zeroedPgm, const pgm *const orig){
+    if (zeroedPgm == NULL || orig == NULL){
+        return failure;
\ No newline at end of file
+    }
+    zeroedPgm->max = orig->max;
+    matrix_alloc(&zeroedPgm->pixels, (orig->pixels.l + 2), (orig->pixels.c + 2));
+    
+    for(int i = 0; i < zeroedPgm->pixels.l; i++){
+        for (int j = 0; j < zeroedPgm->pixels.c; j++){
+            zeroedPgm->pixels.data[i][j] = 0;
+        }
+    }
+
+    for(int i = 1, k = 0; i < zeroedPgm->pixels.l - 1; i++, k++){
+        for(int j = 1, m = 0; i < zeroedPgm->pixels.c - 1; j++, m++){
+            zeroedPgm->pixels.data[i][j] = orig->pixels.data[k][m];
+        }
+    }
+
+    return success;
+}
+
+pgm_error pmg_conv(pgm *conv, const pgm *const orig, const matrix *const kernel){
+    if (conv == NULL || orig == NULL || kernel){
+        return failure;
+    }
+
+    conv->max = orig->max;
+    matrix_alloc(&conv->pixels, orig->pixels.l, orig->pixels.c);
+    for (int i = 1; i <= orig->pixels.l; i++){
+        for (int j = 1; j <= orig->pixels.c; j++){
+            //attention au valeurs < 0 ou > 255
+        }
+    }
+    return success;
+}

pgm.h

@@ -23,6 +23,7 @@ pgm_error pgm_symmetry_vert(pgm *sym, const pgm *const orig);
 pgm_error pgm_symmetry_cent(pgm *sym, const pgm *const orig);
 pgm_error pgm_photomaton(pgm *photomaton, const pgm *const orig);
 pgm_error pgm_crop(pgm *crop, const pgm *const orig, int32_t x0, int32_t x1, int32_t y0, int32_t y1);
+pgm_error add_zeros_in_pgm(pgm *zeroedPgm, const pgm *const orig);
 pgm_error pmg_conv(pgm *conv, const pgm *const orig, const matrix *const kernel);
 
 #endif
\ No newline at end of file

pgm_main.c

 #include "pgm.h"
 
-
 int main(){
     pgm a;
     pgm neg;
@@ -10,6 +9,12 @@ int main(){
     pgm photomatonx4;
     pgm photomatonx16;
     pgm cropped;
+    pgm zeroPgm;
+    //pgm convolution;
+    int conv[9] = {1,1,1,1,0,1,1,1,1};
+    matrix convKernel;
+    matrix_init_from_array(&convKernel, 3, 3, conv, 9);
+
 
 
     printf("%d", pgm_read_from_file(&a, "mandrill.pgm"));
@@ -30,8 +35,14 @@ int main(){
     printf("%d", pgm_photomaton(&photomatonx16, &photomatonx4));
     //printf("%d", pgm_write_to_file(&photomatonx16, "photomatonx16.pgm"));
 
-    printf("%d", pgm_crop(&cropped, &a, 100, 300, 100, 200));
-    printf("%d", pgm_write_to_file(&cropped, "cropped.pgm"));
+    printf("%d", pgm_crop(&cropped, &a, 100, 300, 100, 300));
+    //printf("%d", pgm_write_to_file(&cropped, "cropped.pgm"));
+
+    printf("%d", add_zeros_in_pgm(&zeroPgm, &a));
+    printf("%d", pgm_write_to_file(&zeroPgm, "zero.pgm"));
+
+    //printf("%d", pmg_conv(&convolution, &a, &convKernel));
+    //printf("%d", pgm_write_to_file(&convolution, "convolution.pgm"));
 
     matrix_destroy(&a.pixels);
     matrix_destroy(&neg.pixels);
@@ -41,6 +52,7 @@ int main(){
     matrix_destroy(&photomatonx4.pixels);
     matrix_destroy(&photomatonx16.pixels);
     matrix_destroy(&cropped.pixels);
+    matrix_destroy(&convKernel);
 
     return EXIT_SUCCESS;
 }   
\ No newline at end of file