add GenA8FromLCD as a hack to force GDI to create the A8 mask from the LCD

results, rather than asking GDI directly for A8 (which it sometimes decides
to interpret as BW)



git-svn-id: http://skia.googlecode.com/svn/trunk@3061 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 5 insertions, 1 deletions

diff --git a/include/core/SkScalerContext.h b/include/core/SkScalerContext.h
index f59d489910..2e4d594122 100644
--- a/include/core/SkScalerContext.h
+++ b/include/core/SkScalerContext.h
@@ -175,8 +175,12 @@ public:
         kLCD_Vertical_Flag        = 0x0200,    // else Horizontal
         kLCD_BGROrder_Flag        = 0x0400,    // else RGB order
 
+        // Generate A8 from LCD source (for GDI), only meaningful if fMaskFormat is kA8
+        // Perhaps we can store this (instead) in fMaskFormat, in hight bit?
+        kGenA8FromLCD_Flag        = 0x0800,
+
         // luminance : 0 for black text, kLuminance_Max for white text
-        kLuminance_Shift          = 11, // to shift into the other flags above
+        kLuminance_Shift          = 13, // shift to land in the high 3-bits of Flags
         kLuminance_Bits           = 3,  // ensure Flags doesn't exceed 16bits
     };