--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cs/drivers/drv_app/r2d/lcds/PC_CSAMPLE/R2D_pc_csample_lcd_i.c	Sun Jul 15 04:39:26 2018 +0000
@@ -0,0 +1,224 @@
+static UINT32 r2d_lcd_copy_operator(UINT32 old,UINT32 value)
+{
+	return(value);
+}
+static UINT32 r2d_lcd_or_operator(UINT32 old,UINT32 value)
+{
+    return(old | 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)) ;
+}
+
+// Next don't do anything but required for link with asm files
+UINT32 r2d_lcd_alpha_operator(UINT32 old,UINT32 value)
+{
+	return(0) ;
+}
+
+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
+};
+
+// Return the pixel value to write on the LCD or the offscreen
+// pixmap
+// LCD DEPENDENT
+void r2d_convert_foreground_color(T_R2D_GC *gc,UINT32 color)
+{
+     
+     // If one is writing to the LCD framebuffer (the only
+     // one which is not 24 bits) then color conversion is required
+        UINT16 red,green,blue;
+        UINT32 lightness;
+
+      
+        red=r2d_red(color);
+        green=r2d_green(color);
+        blue=r2d_blue(color);
+
+        // Compute global intensity for monochrome LCD
+        lightness=(~((r2d_max_color(red,green,blue) + r2d_min_color(red,green,blue)) >> 1) & 0xFF);       
+
+  #if (R2D_DITHERING == R2D_ON)
+        {
+          UINT32 dvalue;
+          UINT16 dithering_group;
+
+          r2d_dithering_group_and_lightness();
+
+          r2d_dithered_value(0,0)
+          r2d_set_dithering_matrix_entry(gc->p_foreground_dithered_cache,
+            dvalue,0,0);
+
+          r2d_dithered_value(0,1)
+          r2d_set_dithering_matrix_entry(gc->p_foreground_dithered_cache,
+            dvalue,0,1);
+
+          r2d_dithered_value(1,1)
+          r2d_set_dithering_matrix_entry(gc->p_foreground_dithered_cache,
+            dvalue,1,1);
+
+          r2d_dithered_value(1,0)
+          r2d_set_dithering_matrix_entry(gc->p_foreground_dithered_cache,
+            dvalue,1,0);
+
+
+        }
+  #else
+          lightness=(lightness >> (8 - R2D_PIXEL_DEPTH)) & R2D_PIXEL_MASK;
+          gc->foreground_pixel_value=lightness;
+  #endif
+
+     
+     
+}
+
+// Return the pixel value to write on the LCD or the offscreen
+// pixmap
+// LCD DEPENDENT
+void r2d_convert_background_color(T_R2D_GC *gc,UINT32 color)
+{
+     
+     // If one is writing to the LCD framebuffer (the only
+     // one which is not 24 bits) then color conversion is required
+        UINT16 red,green,blue;
+        UINT32 lightness;
+
+      
+        red=r2d_red(color);
+        green=r2d_green(color);
+        blue=r2d_blue(color);
+
+        // Compute global intensity for monochrome LCD
+        lightness=(~((r2d_max_color(red,green,blue) + r2d_min_color(red,green,blue)) >> 1) & 0xFF);       
+
+  #if (R2D_DITHERING == R2D_ON)
+        {
+          UINT32 dvalue;
+          UINT16 dithering_group;
+
+          r2d_dithering_group_and_lightness();
+
+          r2d_dithered_value(0,0)
+          r2d_set_dithering_matrix_entry(gc->p_background_dithered_cache,
+            dvalue,0,0);
+
+          r2d_dithered_value(0,1)
+          r2d_set_dithering_matrix_entry(gc->p_background_dithered_cache,
+            dvalue,0,1);
+
+          r2d_dithered_value(1,1)
+          r2d_set_dithering_matrix_entry(gc->p_background_dithered_cache,
+            dvalue,1,1);
+
+          r2d_dithered_value(1,0)
+          r2d_set_dithering_matrix_entry(gc->p_background_dithered_cache,
+            dvalue,1,0);
+
+
+        }
+  #else
+          lightness=(lightness >> (8 - R2D_PIXEL_DEPTH)) & R2D_PIXEL_MASK;
+          gc->background_pixel_value=lightness;
+  #endif
+
+
+     
+     
+     
+}
+
+// blit_rect may use the foreground and background color
+// to do the copy. So, one must knows which source pixels
+// are corresponding to the background color,
+// which ones are corresponding to the foreground color
+// and do the conversion of the color selected
+// according to the destination framebuffer
+
+// This files gives routines for:
+//  - Selecting a color according to the value in the LCD framebuffer
+//  - Converting a color to LCD
+
+
+// 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)
+    return(TRUE); // Foreground pixel
+   else
+    return(FALSE); // Background pixel
+}
+
+// Assume than color framebuffer contains ARGB packed values
+// Convert color to LCD with on the fly dithering
+UINT32 r2d_color_to_lcd(UINT32 pixel_value,INT16 x,INT16 y)
+{
+
+  INT16 red,green,blue;
+  UINT32 lightness;
+  UINT32 dvalue;
+  UINT16 dithering_group;
+
+  pixel_value=(~pixel_value) & 0x00FFFFFF;
+  red=r2d_red(pixel_value);
+  green=r2d_green(pixel_value);
+  blue=r2d_blue(pixel_value);
+
+  // Compute global intensity for monochrome LCD
+  lightness=(~((r2d_max_color(red,green,blue) + r2d_min_color(red,green,blue)) >> 1) & 0xFF);       
+ 
+
+  r2d_dithering_group_and_lightness();
+
+  r2d_dithered_value(x & 1,y & 1);
+          
+  return(dvalue);
+}
+
+// Lcd to pixel value
+UINT32 r2d_lcd_to_color(UINT32 color)
+{
+    
+  if (color)
+    return(0x00FFFFFF); // 24 bpp framebuffer pixel value for white
+  else
+	return(0x00000000);
+}
+
+
+