From ebd63b52cd22a173106085b79404688d267a801a Mon Sep 17 00:00:00 2001
From: Michiel Van Der Kolk <not.valid@email.address>
Date: Fri, 4 Mar 2005 20:56:49 +0000
Subject: New lcd mode: drop every 9th line; set as default.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6136 a1c6a512-1295-4272-9138-f99709370657
---
 apps/plugins/rockboy/lcd.c         | 56 ++++++++++++++++++--------------------
 apps/plugins/rockboy/sys_rockbox.c | 14 +++-------
 2 files changed, 31 insertions(+), 39 deletions(-)

diff --git a/apps/plugins/rockboy/lcd.c b/apps/plugins/rockboy/lcd.c
index 637a44c9c9..04ca06e958 100644
--- a/apps/plugins/rockboy/lcd.c
+++ b/apps/plugins/rockboy/lcd.c
@@ -52,7 +52,7 @@ static int rgb332;
 
 static int sprsort = 1;
 static int sprdebug;
-static int scanline_ind=0;
+static int scanline_ind=0,insync=0;
 
 #define DEF_PAL { 0x98d0e0, 0x68a0b0, 0x60707C, 0x2C3C3C }
 
@@ -536,12 +536,6 @@ void bg_scan_color(void)
 	blendcpy(dest, src, *(tile++), cnt);
 }
 
-// blend in window source WND target BUF
-// WX = starting X in buf where WND starts
-// WV = vertical line selected for this scanline
-// reverse:
-// WY = starting y in buf where WND starts ? 
-// W?? = horizontal line selected for this scanline
 void wnd_scan_color(void)
 {
 	int cnt;
@@ -735,32 +729,30 @@ void lcd_begin(void)
 void lcd_refreshline(void)
 {
 	if (!fb.enabled) return;
+	if(!insync) {
+		if(R_LY!=0)
+			return;
+		else
+		   insync=1;
+	}
 
 	if (!(R_LCDC & 0x80))
 		return; /* should not happen... */
 
-        if ( ((fb.mode==0)&&(R_LY >= 128)) ||
-             ((fb.mode==1)&&(R_LY < 16)) ||
-             ((fb.mode==2)&&((R_LY<8)||(R_LY>=136)))
+        if ( (fb.mode==0&&(R_LY >= 128)) ||
+             (fb.mode==1&&(R_LY < 16)) ||
+             (fb.mode==2&&(R_LY<8||R_LY>=136)) ||
+	     (fb.mode==3&&((R_LY%9)==8))
 							
 #if LCD_HEIGHT == 64
 	     || (R_LY & 1) /* calculate only even lines */
 #endif
 	   )
-		return;
+	    return;
 
 	updatepatpix();
 
     L = R_LY;
-#if LCD_HEIGHT == 64
-    scanline_ind = (L/2) % 8;
-#else
-#ifdef GRAYSCALE
-    scanline_ind = L % 4;
-#else
-    scanline_ind = L % 8;
-#endif
-#endif
     X = R_SCX;
     Y = (R_SCY + L) & 0xff;
     S = X >> 3;
@@ -795,20 +787,26 @@ void lcd_refreshline(void)
         recolor(BUF+WX, 0x04, 160-WX);
     }
     spr_scan();
-/*
-    if (fb.dirty) memset(fb.ptr, 0, fb.pitch * fb.h);
-    fb.dirty = 0;
-    if (density > scale) density = scale;
-    if (scale == 1) density = 1;
-    dest = vdest;
-*/
 #ifdef GRAYSCALE
     if (scanline_ind == 3)
 #else
     if (scanline_ind == 7)
 #endif
-        vid_update(L);
-  //  vdest += fb.pitch * scale;
+    {
+        if(fb.mode!=3)
+            vid_update(L);
+	else
+	    vid_update(L-((int)(L/9)));
+    }
+#if LCD_HEIGHT == 64
+    scanline_ind = (scanline_ind+1) % 8;
+#else
+#ifdef GRAYSCALE
+    scanline_ind = (scanline_ind+1) % 4;
+#else
+    scanline_ind = (scanline_ind+1) % 8;
+#endif
+#endif
 }
 
 
diff --git a/apps/plugins/rockboy/sys_rockbox.c b/apps/plugins/rockboy/sys_rockbox.c
index 9bc3a6b350..64c3385169 100644
--- a/apps/plugins/rockboy/sys_rockbox.c
+++ b/apps/plugins/rockboy/sys_rockbox.c
@@ -83,7 +83,7 @@ void ev_poll(void)
     oldbuttonstate = newbuttonstate;
 #if CONFIG_KEYPAD == IRIVER_H100_PAD
     if (rb->button_hold()&~holdbutton)
-	fb.mode=(fb.mode+1)%3;
+	fb.mode=(fb.mode+1)%4;
     holdbutton=rb->button_hold();
 #endif
     if(released) {
@@ -153,7 +153,7 @@ void vid_init(void)
     fb.enabled=1;
     fb.dirty=0;
     video_base_buf=fb.ptr=(byte *)frameb;
-    fb.mode=0;
+    fb.mode=3;
 }
 
 void vid_update(int scanline) 
@@ -164,11 +164,8 @@ void vid_update(int scanline)
     int balance = 0;
     if (fb.mode==1)
       scanline-=16;
-    else if (fb.mode==2) {
+    else if (fb.mode==2)
       scanline-=8;
-      if(scanline>=128)
-          return;
-    }
     scanline_remapped = scanline / 16;
     frameb = rb->lcd_framebuffer + scanline_remapped * LCD_WIDTH;
     while (cnt < 160) {
@@ -242,11 +239,8 @@ void vid_update(int scanline)
 #else /* LCD_HEIGHT != 64, iRiver */
     if (fb.mode==1)
       scanline-=16;
-    else if (fb.mode==2) {
+    else if (fb.mode==2)
       scanline-=8;
-      if(scanline>=128)
-          return;
-    }
 #ifdef GRAYSCALE
     scanline_remapped = scanline / 4;
 #else
-- 
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