Patch #8461, by Rob Hausauer

This unifies all usage of FTOCHAR, putting it in utildefines.h
Submitter did several interesting tests for speed, check it here:
http://projects.blender.org/tracker/?func=detail&atid=127&aid=8461&group_id=9

source/blender/render/intern/source/pipeline.c

@@ -38,6 +38,7 @@
 #include "DNA_scene_types.h"
 #include "DNA_userdef_types.h"
 
+#include "BKE_utildefines.h"
 #include "BKE_global.h"
 #include "BKE_image.h"
 #include "BKE_main.h"
@@ -961,7 +962,6 @@ void RE_GetResultImage(Render *re, RenderResult *rr)
 	}
 }
 
-#define FTOCHAR(val) val<=0.0f?0: (val>=1.0f?255: (char)(255.0f*val))
 /* caller is responsible for allocating rect in correct size! */
 void RE_ResultGet32(Render *re, unsigned int *rect)
 {

source/blender/render/intern/source/rendercore.c

@@ -1971,7 +1971,6 @@ void RE_shade_external(Render *re, ShadeInput *shi, ShadeResult *shr)
 
 /* ************************* bake ************************ */
 
-#define FTOCHAR(val) val<=0.0f?0: (val>=1.0f?255: (char)(255.0f*val))
 
 typedef struct BakeShade {
 	ShadeSample ssamp;