introduce Props to surface

src/core/SkPaint.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPaint.h"
 #include "SkAnnotation.h"
 #include "SkAutoKern.h"
@@ skipping 1520 matching lines @@
 /*
  *  Return the scalar with only limited fractional precision. Used to consolidate matrices
  *  that vary only slightly when we create our key into the font cache, since the font scaler
  *  typically returns the same looking resuts for tiny changes in the matrix.
  */
 static SkScalar sk_relax(SkScalar x) {
     int n = sk_float_round2int(x * 1024);
     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,
                               Rec* rec) {
     SkASSERT(deviceMatrix == NULL || !deviceMatrix->hasPerspective());
 
     SkTypeface* typeface = paint.getTypeface();
     if (NULL == typeface) {
         typeface = SkTypeface::GetDefaultTypeface();
     }
@@ skipping 49 matching lines @@
             flags |= SkScalerContext::kFrameAndFill_Flag;
         }
     } else {
         rec->fFrameWidth = 0;
         rec->fMiterLimit = 0;
         rec->fStrokeJoin = 0;
     }
 
     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;
             }
         }
     }
 
     if (paint.isEmbeddedBitmapText()) {
         flags |= SkScalerContext::kEmbeddedBitmapText_Flag;
     }
     if (paint.isSubpixelText()) {
         flags |= SkScalerContext::kSubpixelPositioning_Flag;
     }
@@ skipping 10 matching lines @@
 
     // these modify fFlags, so do them after assigning fFlags
     rec->setHinting(computeHinting(paint));
 
     rec->setLuminanceColor(computeLuminanceColor(paint));
 
     if (NULL == deviceProperties) {
         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
     rec->setContrast(SK_GAMMA_CONTRAST);
 #else
     /**
      * A value of 0.5 for SK_GAMMA_CONTRAST appears to be a good compromise.
      * With lower values small text appears washed out (though correctly so).
      * With higher values lcd fringing is worse and the smoothing effect of
      * partial coverage is diminished.
@@ skipping 1004 matching lines @@
     F_UNREF(Looper,      readDrawLooper);
     F_UNREF(ImageFilter, readImageFilter);
     F(Typeface,    readTypeface);
 #undef F
 #undef F_UNREF
     if (dirty & kAnnotation_DirtyBit) {
         paint->setAnnotation(SkAnnotation::Create(buffer))->unref();
     }
     SkASSERT(dirty == paint->fDirtyBits);
 }