libpipi: replace large stack buffer allocations with malloc().

git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2941 92316355-f0b4-4df1-b90c-862c8a59935f

pipi/codec/oric.c

@@ -50,14 +50,18 @@ pipi_image_t *pipi_load_oric(char const *name)
         0xff, 0xff, 0xff, 0xff,
     };
 
-    uint8_t screen[WIDTH * HEIGHT / 6];
     pipi_image_t *img;
     pipi_pixels_t *p;
-    uint8_t *data;
+    uint8_t *screen, *data;
     int x, y, i;
 
+    screen = malloc(WIDTH * HEIGHT / 6);
+
     if(read_screen(name, screen) < 0)
+    {
+        free(screen);
         return NULL;
+    }
 
     img = pipi_new(WIDTH, HEIGHT);
     p = pipi_getpixels(img, PIPI_PIXELS_RGBA_C);
@@ -99,6 +103,8 @@ pipi_image_t *pipi_load_oric(char const *name)
         }
     }
 
+    free(screen);
+
     img->codec_priv = NULL;
 
     img->wrap = 0;
@@ -109,10 +115,10 @@ pipi_image_t *pipi_load_oric(char const *name)
 
 int pipi_save_oric(pipi_image_t *img, char const *name)
 {
-    uint8_t screen[WIDTH * HEIGHT / 6];
     pipi_image_t *tmp = NULL;
     pipi_pixels_t *p;
     float *data;
+    uint8_t *screen;
     FILE *fp;
     size_t len;
 
@@ -140,13 +146,19 @@ int pipi_save_oric(pipi_image_t *img, char const *name)
     else
         p = pipi_getpixels(img, PIPI_PIXELS_RGBA_F);
     data = p->pixels;
+    screen = malloc(WIDTH * HEIGHT / 6);
     write_screen(data, screen);
     if(tmp)
+    {
+        free(screen);
         pipi_free(tmp);
+    }
 
     fwrite(screen, 1, WIDTH * HEIGHT / 6, fp);
     fclose(fp);
 
+    free(screen);
+
     return 0;
 }