1 files changed, 69 insertions, 0 deletions
diff --git a/src/pixel.c b/src/pixel.c
new file mode 100644
index 0000000..abe756e
--- /dev/null
+++ b/src/pixel.c
@@ -0,0 +1,69 @@
+/*
+** pixel.c for  in /home/gayot_o/prog/lib/sdl-digit
+** 
+** Made by olivier gayot
+** Login   <gayot_o@epitech.net>
+** 
+** Started on  Mon Apr 23 08:13:46 2012 olivier gayot
+** Last update Mon Apr 23 08:13:46 2012 olivier gayot
+*/
+
+#include	"sdl_digit.h"
+
+void		set_pixel_color(SDL_Surface *surf,
+    int x, int y, Uint32 color) {
+  char		*address = surf->pixels;
+  union_	cast_;
+
+  if (x >= surf->w || y >= surf->h || x < 0 || y < 0)
+    return;
+  address += surf->pitch * y;
+  address += x * surf->format->BytesPerPixel;
+  switch (surf->format->BitsPerPixel) {
+    case 32:
+      cast_.int_ = (Uint32 *)address;
+      *cast_.int_ = color;
+      break;
+    case 24:
+      cast_.int_ = (Uint32 *)address;
+      *cast_.int_ = color;
+      break;
+    case 16:
+      cast_.short_ = (Uint16 *)address;
+      *cast_.short_ = color;
+      break;
+    case 8:
+      cast_.char_ = (Uint8 *)address;
+      *cast_.char_ = color;
+      break;
+    default:
+      return;
+      break;
+  }
+}
+
+Uint32		get_pixel_color(SDL_Surface *surf, int x, int y) {
+  char		*address = surf->pixels;
+
+  if (x >= surf->w || y >= surf->h || x < 0 || y < 0)
+    return 0;
+  address += surf->pitch * y;
+  address += x * surf->format->BytesPerPixel;
+  switch (surf->format->BitsPerPixel) {
+    case 32:
+      return ((Uint32)*((Uint32 *)address));
+      break;
+    case 24:
+      return ((Uint32)*((Uint32 *)address));
+      break;
+    case 16:
+      return ((Uint32)*((Uint16 *)address));
+      break;
+    case 8:
+      return ((Uint32)*((Uint8 *)address));
+      break;
+    default:
+      return ((Uint32)0);
+      break;
+  }
+}