Lcd save function pointer to frame buffer get_address_fn before loops

Calling multiple levels of indirection in a loop slows things down

Really these need to be rewritten to take a start and end address
like most of the rest of the codebase

But this is safer without having test hardware in hand

Change-Id: Idae7b92ee779d020ed7fcc9334e2d5a9c710e64d

1 files changed, 3 insertions, 1 deletions

diff --git a/firmware/target/arm/imx233/creative-zen/lcd-zenmozaic.c b/firmware/target/arm/imx233/creative-zen/lcd-zenmozaic.c
index c1bc379a49..ab4466300b 100644
--- a/firmware/target/arm/imx233/creative-zen/lcd-zenmozaic.c
+++ b/firmware/target/arm/imx233/creative-zen/lcd-zenmozaic.c
@@ -149,6 +149,8 @@ void lcd_update_rect(int x, int y, int w, int h)
     lcd_write_reg(0x17, y | (y + h - 1) << 8);
     lcd_write_reg(0x21, y * LCD_WIDTH + x);
     lcd_write_reg(0x22, 0);
+
+    void* (*fbaddr)(int x, int y) = FB_CURRENTVP_BUFFER->get_address_fn;
     for(int yy = y; yy < y + h; yy++)
-        imx233_lcdif_pio_send(true, 2 * w, FBADDR(x, yy));
+        imx233_lcdif_pio_send(true, 2 * w, fbaddr(x,yy));
 }