--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cs/drivers/drv_app/r2d/lcds/E_Sample/R2D_board_esample_lcd_i.c	Fri Oct 16 06:23:26 2020 +0000
@@ -0,0 +1,216 @@
+
+
+static UINT32 r2d_lcd_copy_operator(UINT32 old,UINT32 value)
+{
+	return(value);
+}
+
+static UINT32 r2d_lcd_or_operator(UINT32 old,UINT32 value)
+{
+	if ((value&0x0000FFFF)==0)
+		return(old);
+	else
+	    return(value);
+}
+static UINT32 r2d_lcd_and_operator(UINT32 old,UINT32 value)
+{
+	return(old & value);
+}
+static UINT32 r2d_lcd_xor_operator(UINT32 old,UINT32 value)
+{
+	return(old ^ value) ;
+}
+static UINT32 r2d_lcd_not_copy_operator(UINT32 old,UINT32 value)
+{
+	return(~value);
+}
+static UINT32 r2d_lcd_not_or_operator(UINT32 old,UINT32 value)
+{
+	return(~(old | value));
+}
+static UINT32 r2d_lcd_not_and_operator(UINT32 old,UINT32 value)
+{
+	return(~(old & value));
+}
+static UINT32 r2d_lcd_not_xor_operator(UINT32 old,UINT32 value)
+{
+	return(~(old ^ value)) ;
+}
+static UINT32 r2d_lcd_erase_operator(UINT32 old,UINT32 value)
+{
+	if ((value&0x0FFFF)==0xFFFF)
+		return(0);
+	else
+	    return(old);
+}
+
+// This operator is meaningless when alpha mode not supported
+UINT32 r2d_lcd_alpha_operator(UINT32 old,UINT32 value)
+{
+			   UINT16 a,rs,gs,bs,rd,gd,bd;
+			   UINT32 big_a;
+
+			   big_a=value;
+			   big_a=big_a>>16;
+
+			   a=big_a;
+
+			   if (a)
+			   {
+
+			   value=(~value) & 0x0FFFFFF;
+			   old=(~old) & 0x0FFFFFF;
+			   
+			   bs=(value&0x1F);
+               value=value>>5;
+               gs=(value&0x3F);
+               value=value>>6;
+               rs=(value&0x1F);
+
+			   
+
+			   bd=(old&0x1F);
+               old=old>>5;
+               gd=(old&0x3F);
+               old=old>>6;
+               rd=(old&0x1F);
+
+
+			   
+			   
+			   // Pixel value has been complemented before being
+			   // saved so that the white correspond to 0 and be
+			   // compatible with formulas for other modes.
+			   // But alpha value is not complemented
+			   // So a=0xFF correspond tranparency
+			   bd=((a)*bd+(0x100 - a)*bs) >> 8;
+			   gd=((a)*gd+(0x100 - a)*gs) >> 8;
+			   rd=((a)*rd+(0x100 - a)*rs) >> 8;
+
+			   
+
+			   old=(~((rd<<11)|(gd<<5)|bd)) & 0x000FFFF;
+			   return(old);
+			   }
+			   else
+				   return(value);
+}
+ 
+
+const T_R2D_DRAWING_OPERATORS r2d_g_lcd_operators=
+{
+   &r2d_lcd_copy_operator,
+   &r2d_lcd_or_operator,
+   &r2d_lcd_and_operator,
+   &r2d_lcd_xor_operator,
+   &r2d_lcd_not_copy_operator,
+   &r2d_lcd_not_or_operator,
+   &r2d_lcd_not_and_operator,
+   &r2d_lcd_not_xor_operator,
+   NULL,
+   &r2d_lcd_erase_operator
+};
+
+
+// Return the pixel value to write on the LCD or the offscreen
+// pixmap
+// (Convert Riviera color to D-Sample RGB Format with complement)
+void r2d_convert_foreground_color(T_R2D_GC *gc,UINT32 color)
+{
+	INT16 r,g,b;
+	UINT32 a;
+
+	gc->foreground_pixel_value=0;
+    
+	//a=(r2d_alpha(color)) << 16;
+	//gc->foreground_pixel_value|=a;
+
+	r=(r2d_red(color)&0xF8) >> 3;
+	g=(r2d_green(color)&0xFC) >> 2;
+	b=(r2d_blue(color)&0xF8) >> 3 ;
+
+    gc->foreground_pixel_value|= (~((r<<11) | (g<<5) | b)) & 0x0FFFF;
+     
+}
+
+// Return the pixel value to write on the LCD or the offscreen
+// pixmap
+// (Convert riviera color to D-Sample RGB format with complement)
+void r2d_convert_background_color(T_R2D_GC *gc,UINT32 color)
+{
+    INT16 r,g,b;
+	UINT32 a;
+
+	gc->background_pixel_value=0;
+
+	//a=(r2d_alpha(color)) << 16;
+	//gc->background_pixel_value|=a;
+
+	r=(r2d_red(color)&0xF8) >> 3 ;
+	g=(r2d_green(color)&0xFC) >> 2 ;
+	b=(r2d_blue(color)&0xF8) >> 3 ;
+
+    gc->background_pixel_value|= (~((r<<11) | (g<<5) | b)) & 0x0FFFF;
+}
+
+
+
+// Convert a LCD value (not color) to a value
+// to be written into the 24bpp framebuffer
+// In general, the value written is a packed
+// representation of the ARGB color
+// but it may be different according to the framebuffer
+// internal format
+BOOLEAN r2d_lcd_foreground_pixel(UINT32 lcd_value,T_R2D_GC_PTR src_gc)
+{
+   if (lcd_value&0x0000FFFF)
+     return(TRUE);
+   else
+     return(FALSE);
+}
+
+// Color framebuffer to D-Sample LCD
+UINT32 r2d_color_to_lcd(UINT32 pixel_value,INT16 x,INT16 y)
+{
+  
+  INT16 red,green,blue;
+  UINT32 alpha;
+
+  //alpha=pixel_value & 0xFF000000;
+  //alpha=alpha>>8;
+
+  pixel_value=(~pixel_value) & 0x00FFFFFF;
+  red=r2d_red(pixel_value);
+  green=r2d_green(pixel_value);
+  blue=r2d_blue(pixel_value);
+
+  red=(red&0xF8)>>3;
+  green=(green&0xFC)>>2;
+  blue=(blue&0xF8)>>3;
+  
+  //return(((~((red<<11) | (green << 5) | blue)) & 0x0000FFFF) | alpha);
+  return(((~((red<<11) | (green << 5) | blue)) & 0x0000FFFF) );
+}
+
+// D-Sample LCD to color framebuffer
+UINT32 r2d_lcd_to_color(UINT32 color)
+{
+    
+  INT16 r,g,b;
+  UINT32 alpha;
+
+  //alpha=color & 0x00FF0000;
+ // alpha=alpha<<8;
+
+  color=~color;
+  b=(color&0x1F)<<3;
+  color=color>>5;
+  g=(color&0x3F)<<2;
+  color=color>>6;
+  r=(color&0x1F)<<3;
+
+ // return(((~((r<<16) + (g<<8)+b)) & 0x00FFFFFF) | alpha);
+  return(((~((r<<16) + (g<<8)+b)) & 0x00FFFFFF) );
+}
+
+