From bd3246226e00e900395927eb659e335c4eccf103 Mon Sep 17 00:00:00 2001
From: jethead71 <jethead71@a1c6a512-1295-4272-9138-f99709370657>
Date: Tue, 15 Apr 2008 13:06:29 +0000
Subject: [PATCH] Make the transparent bitmaps work on Gigabeat S.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17118 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/drivers/lcd-16bit.c                     |  2 +-
 firmware/target/arm/imx31/gigabeat-s/lcd-imx31.c | 23 ++++++++++++-----------
 2 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/firmware/drivers/lcd-16bit.c b/firmware/drivers/lcd-16bit.c
index dab29efef..c91d22283 100644
--- a/firmware/drivers/lcd-16bit.c
+++ b/firmware/drivers/lcd-16bit.c
@@ -68,7 +68,7 @@ static struct viewport default_vp =
 
 /* The Gigabeat target build requires access to the current fg_pattern
    in lcd-meg-fx.c */
-#if !defined(TOSHIBA_GIGABEAT_F) || defined(SIMULATOR)
+#if (!defined(TOSHIBA_GIGABEAT_F)&& !defined(TOSHIBA_GIGABEAT_S)) || defined(SIMULATOR)
 static struct viewport* current_vp IDATA_ATTR = &default_vp;
 #else
 struct viewport* current_vp IDATA_ATTR = &default_vp;
diff --git a/firmware/target/arm/imx31/gigabeat-s/lcd-imx31.c b/firmware/target/arm/imx31/gigabeat-s/lcd-imx31.c
index 07258fa12..b834320c1 100644
--- a/firmware/target/arm/imx31/gigabeat-s/lcd-imx31.c
+++ b/firmware/target/arm/imx31/gigabeat-s/lcd-imx31.c
@@ -11,13 +11,16 @@ static volatile bool lcd_on = true;
 volatile bool lcd_poweroff = false;
 static unsigned lcd_yuv_options = 0;
 /*
-** These are imported from lcd-16bit.c
+** This is imported from lcd-16bit.c
 */
-extern unsigned fg_pattern;
-extern unsigned bg_pattern;
-
 extern struct viewport* current_vp;
 
+/* Copies a rectangle from one framebuffer to another. Can be used in
+   single transfer mode with width = num pixels, and height = 1 which
+   allows a full-width rectangle to be copied more efficiently. */
+extern void lcd_copy_buffer_rect(fb_data *dst, const fb_data *src,
+                                 int width, int height);
+
 #if 0
 bool lcd_enabled()
 {
@@ -106,26 +109,25 @@ void lcd_bitmap_transparent_part(const fb_data *src, int src_x, int src_y,
                                  int stride, int x, int y, int width,
                                  int height)
 {
-#if 0
     int w, px;
     fb_data *dst;
 
-    if (x + width > LCD_WIDTH)
-        width = LCD_WIDTH - x; /* Clip right */
+    if (x + width > current_vp->width)
+        width = current_vp->width - x; /* Clip right */
     if (x < 0)
         width += x, x = 0; /* Clip left */
     if (width <= 0)
         return; /* nothing left to do */
 
-    if (y + height > LCD_HEIGHT)
-        height = LCD_HEIGHT - y; /* Clip bottom */
+    if (y + height > current_vp->height)
+        height = current_vp->height - y; /* Clip bottom */
     if (y < 0)
         height += y, y = 0; /* Clip top */
     if (height <= 0)
         return; /* nothing left to do */
 
     src += stride * src_y + src_x; /* move starting point */
-    dst = &lcd_framebuffer[y][x];
+    dst = &lcd_framebuffer[current_vp->y+y][current_vp->x+x];
 
     asm volatile (
     ".rowstart:                             \r\n"
@@ -152,7 +154,6 @@ void lcd_bitmap_transparent_part(const fb_data *src, int src_x, int src_y,
           [fgcolor]"r"(REPLACEWITHFG_COLOR),
           [fgpat]"r"(current_vp->fg_pattern)
     );
-#endif
 }
 
 void lcd_yuv_set_options(unsigned options)
-- 
2.11.4.GIT