Add compiler option to disable boundchecks

1 files changed, 8 insertions, 2 deletions

diff --git a/src/renderer.c b/src/renderer.c
index 773d50b..2cc5758 100644
--- a/src/renderer.c
+++ b/src/renderer.c
@@ -12,7 +12,7 @@
 // the remaining two available for other background layers. There are 14KB of
 // sprite memory available, since the backbuffer is located at the end of the
 // VRAM, but if more space is needed it can be moved to the end of the BG
-// charblocks instead as described below.
+// charblocks instead.
 //
 
 #include "renderer.h"
@@ -21,8 +21,14 @@
 // Keep track of which tiles need to be copied to the frontbuffer.
 static u32 dirty_tiles[21] = {0};
 
-// TODO: Allow disable bound checking at compile time.
+// Boundchecks can be disable at compile time but this will not always improve
+// the performance and can in fact make it worse. It is possible that this is
+// due to some aliasing optimiztions but not sure at this moment.
+#ifdef DISABLE_BOUNDCHECK_SCREEN
+#define BOUNDCHECK_SCREEN(X,Y)
+#else
 #define BOUNDCHECK_SCREEN(X,Y) if ((X) >= SCREEN_WIDTH || (Y) >= SCREEN_HEIGHT) return;
+#endif
 
 IWRAM_CODE
 void