clean-up surfaceflinger a bit

get rid of the glDrawTexi path and use floating points instead of fixed point maths

Change-Id: I3aa9ce2dc082f702160e605a16ba5fe987cdf087
diff --git a/libs/surfaceflinger/Transform.h b/libs/surfaceflinger/Transform.h
index 2e5b893..20fa11a 100644
--- a/libs/surfaceflinger/Transform.h
+++ b/libs/surfaceflinger/Transform.h
@@ -37,8 +37,6 @@
            explicit Transform(uint32_t orientation);
                     ~Transform();
 
-            typedef int32_t fixed1616;
-
             // FIXME: must match OVERLAY_TRANSFORM_*, pull from hardware.h
             enum orientation_flags {
                 ROT_0   = 0x00000000,
@@ -76,7 +74,7 @@
 
             // transform data
             Rect    makeBounds(int w, int h) const;
-            void    transform(fixed1616* point, int x, int y) const;
+            void    transform(float* point, int x, int y) const;
             Region  transform(const Region& reg) const;
             Transform operator * (const Transform& rhs) const;