Convert a number of places in core and plugins to use the BIT_N() macro instead of 1<<n. Speeds up things on SH1, and also reduces core binsize. Most notable speedups: 1 bit lcd driver: drawpixel +20%, drawline + 27%, hline +5%; jpeg viewer: +8% for 1/8 scaling. Other targets are unaffected.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21205 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 4 insertions, 4 deletions

diff --git a/firmware/drivers/lcd-1bit-vert.c b/firmware/drivers/lcd-1bit-vert.c
index b09ce0e76d..5fb652431c 100644
--- a/firmware/drivers/lcd-1bit-vert.c
+++ b/firmware/drivers/lcd-1bit-vert.c
@@ -155,17 +155,17 @@ int LCDFN(getstringsize)(const unsigned char *str, int *w, int *h)
 
 static void setpixel(int x, int y)
 {
-    LCDFN(framebuffer)[y>>3][x] |= 1 << (y & 7);
+    LCDFN(framebuffer)[y>>3][x] |= BIT_N(y & 7);
 }
 
 static void clearpixel(int x, int y)
 {
-    LCDFN(framebuffer)[y>>3][x] &= ~(1 << (y & 7));
+    LCDFN(framebuffer)[y>>3][x] &= ~BIT_N(y & 7);
 }
 
 static void flippixel(int x, int y)
 {
-    LCDFN(framebuffer)[y>>3][x] ^= 1 << (y & 7);
+    LCDFN(framebuffer)[y>>3][x] ^= BIT_N(y & 7);
 }
 
 static void nopixel(int x, int y)
@@ -401,7 +401,7 @@ void LCDFN(hline)(int x1, int x2, int y)
 
     bfunc = LCDFN(blockfuncs)[current_vp->drawmode];
     dst   = &LCDFN(framebuffer)[y>>3][x1];
-    mask  = 1 << (y & 7);
+    mask  = BIT_N(y & 7);
 
     dst_end = dst + width;
     do