fix fix lib sdl2

Makefile

 CC=gcc -O3 -Wall -Wextra -pedantic -fsanitize=address -fsanitize=leak -lm
 
-all : exec
 
 exec: matrix.o pgm.o gfx.o main.o
 	$(CC) $^ -o $@ -lSDL2 -g -pedantic

main.c

 #include "gfx.h"
 #include "pgm.h"
 
-static void renderPgm(struct gfx_context_t *context, const pgm *const orig) {
+pgm_error renderPgm(struct gfx_context_t *context, const pgm *const orig) {
 
     //Modification de la fonction dans l'exemple d'utilisation de la lib pour intégrer pgm
-	gfx_clear(context, COLOR_BLACK);
+	
     uint32_t intensity;
     uint32_t color;
+    gfx_clear(context, COLOR_BLACK);
+
     for (int i = 0; i < orig->pixels.m; i++)
     {
         for (int j = 0; j < orig->pixels.n; j++)
         {
-            intensity = orig->max;
+            intensity = orig->pixels.data[i][j];
             color = MAKE_COLOR(intensity,intensity,intensity);
-            gfx_putpixel(context, i, j, color);
+            gfx_putpixel(context, j, i, color);
         }
     }
+
+    return success;
 }
 
 int main(){
@@ -25,19 +29,6 @@ int main(){
     pgm_read_from_file(&p, "./img/mandrill.pgm");
     pgm_write_to_file(&p, "./img/mandrill2.pgm");
 
-    int longueur = p.pixels.m;
-    int hauteur = p.pixels.n;
-    struct gfx_context_t *ctxt = gfx_create("image", longueur, hauteur);
-	if (!ctxt) {
-		fprintf(stderr, "Graphics initialization failed!\n");
-		return EXIT_FAILURE;
-	}
-    
-    while (gfx_keypressed() != SDLK_ESCAPE) {
-		renderPgm(ctxt, &p);
-        gfx_present(ctxt);
-	}
-     gfx_destroy(ctxt);
  
     pgm ph;
     pgm_photomaton(&ph,&p);
@@ -77,6 +68,20 @@ int main(){
      pgm_crop(&crop, &p, 100, 200, 100, 200);
      pgm_write_to_file(&crop, "./img/crop_mandrill.pgm");
 
+       int longueur = p.pixels.m;
+    int hauteur = p.pixels.n;
+    struct gfx_context_t *ctxt = gfx_create("image", longueur, hauteur);
+	if (!ctxt) {
+		fprintf(stderr, "Graphics initialization failed!\n");
+		return EXIT_FAILURE;
+	}
+    renderPgm(ctxt, &p);
+    gfx_present(ctxt);
+
+    while (gfx_keypressed() != SDLK_ESCAPE) {
+		
+	}
+     gfx_destroy(ctxt);