introduce Props to surface

src/core/SkPaint.cpp

Index: src/core/SkPaint.cpp
diff --git a/src/core/SkPaint.cpp b/src/core/SkPaint.cpp
index 88bde227044a76b702a7a6be0f010b48b0b33928..a90346e57dfcd9e4240c49e2a388f3ecf5cfd372 100644
--- a/src/core/SkPaint.cpp
+++ b/src/core/SkPaint.cpp
@@ -1538,6 +1538,14 @@ static SkScalar sk_relax(SkScalar x) {
     return n / 1024.0f;
 }
 
+static SkPixelGeometry get_default_pixel_geometry() {
+    return SkSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType).pixelGeometry();
+}
+
+SkDeviceProperties::SkDeviceProperties(SkDeviceProperties::InitType)
+    : fPixelGeometry(get_default_pixel_geometry())
+{}
+
 void SkScalerContext::MakeRec(const SkPaint& paint,
                               const SkDeviceProperties* deviceProperties,
                               const SkMatrix* deviceMatrix,
@@ -1607,19 +1615,33 @@ void SkScalerContext::MakeRec(const SkPaint& paint,
 
     rec->fMaskFormat = SkToU8(computeMaskFormat(paint));
 
-    SkDeviceProperties::Geometry geometry = deviceProperties
-                                          ? deviceProperties->fGeometry
-                                          : SkDeviceProperties::Geometry::MakeDefault();
     if (SkMask::kLCD16_Format == rec->fMaskFormat || SkMask::kLCD32_Format == rec->fMaskFormat) {
-        if (!geometry.isOrientationKnown() || !geometry.isLayoutKnown() || tooBigForLCD(*rec)) {
-            // eeek, can't support LCD
+        if (tooBigForLCD(*rec)) {
             rec->fMaskFormat = SkMask::kA8_Format;
+            flags |= SkScalerContext::kGenA8FromLCD_Flag;
         } else {
-            if (SkDeviceProperties::Geometry::kVertical_Orientation == geometry.getOrientation()) {
-                flags |= SkScalerContext::kLCD_Vertical_Flag;
-            }
-            if (SkDeviceProperties::Geometry::kBGR_Layout == geometry.getLayout()) {
-                flags |= SkScalerContext::kLCD_BGROrder_Flag;
+            SkPixelGeometry geometry = deviceProperties
+                                        ? deviceProperties->fPixelGeometry
+                                        : get_default_pixel_geometry();
+            switch (geometry) {
+                case kUnknown_SkPixelGeometry:
+                    // eeek, can't support LCD
+                    rec->fMaskFormat = SkMask::kA8_Format;
+                    flags |= SkScalerContext::kGenA8FromLCD_Flag;
+                    break;
+                case kRGB_H_SkPixelGeometry:
+                    // our default, do nothing.
+                    break;
+                case kBGR_H_SkPixelGeometry:
+                    flags |= SkScalerContext::kLCD_BGROrder_Flag;
+                    break;
+                case kRGB_V_SkPixelGeometry:
+                    flags |= SkScalerContext::kLCD_Vertical_Flag;
+                    break;
+                case kBGR_V_SkPixelGeometry:
+                    flags |= SkScalerContext::kLCD_Vertical_Flag;
+                    flags |= SkScalerContext::kLCD_BGROrder_Flag;
+                    break;
             }
         }
     }
@@ -1650,13 +1672,13 @@ void SkScalerContext::MakeRec(const SkPaint& paint,
         rec->setDeviceGamma(SK_GAMMA_EXPONENT);
         rec->setPaintGamma(SK_GAMMA_EXPONENT);
     } else {
-        rec->setDeviceGamma(deviceProperties->fGamma);
+        rec->setDeviceGamma(deviceProperties->getGamma());
 
         //For now always set the paint gamma equal to the device gamma.
         //The math in SkMaskGamma can handle them being different,
         //but it requires superluminous masks when
         //Ex : deviceGamma(x) < paintGamma(x) and x is sufficiently large.
-        rec->setPaintGamma(deviceProperties->fGamma);
+        rec->setPaintGamma(deviceProperties->getGamma());
     }
 
 #ifdef SK_GAMMA_CONTRAST