rename filterTextFlags to disableLCD

src/core/SkDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDevice.h"
 #include "SkDeviceProperties.h"
 #include "SkDraw.h"
@@ skipping 10 matching lines @@
 {
     fOrigin.setZero();
     fMetaData = NULL;
 }
 
 SkBaseDevice::~SkBaseDevice() {
     SkDELETE(fLeakyProperties);
     SkDELETE(fMetaData);
 }
 
-SkBaseDevice* SkBaseDevice::createCompatibleDevice(const SkImageInfo& info) {
-    return this->onCreateDevice(info, kGeneral_Usage);
-}
-
-SkBaseDevice* SkBaseDevice::createCompatibleDeviceForSaveLayer(const SkImageInfo& info) {
-    return this->onCreateDevice(info, kSaveLayer_Usage);
-}
-
-SkBaseDevice* SkBaseDevice::createCompatibleDeviceForImageFilter(const SkImageInfo& info) {
-    return this->onCreateDevice(info, kImageFilter_Usage);
-}
-
 SkMetaData& SkBaseDevice::getMetaData() {
     // metadata users are rare, so we lazily allocate it. If that changes we
     // can decide to just make it a field in the device (rather than a ptr)
     if (NULL == fMetaData) {
         fMetaData = new SkMetaData;
     }
     return *fMetaData;
 }
 
 SkImageInfo SkBaseDevice::imageInfo() const {
     return SkImageInfo::MakeUnknown();
 }
 
 const SkBitmap& SkBaseDevice::accessBitmap(bool changePixels) {
     const SkBitmap& bitmap = this->onAccessBitmap();
     if (changePixels) {
         bitmap.notifyPixelsChanged();
     }
     return bitmap;
 }
 
 void SkBaseDevice::setPixelGeometry(SkPixelGeometry geo) {
     fLeakyProperties->setPixelGeometry(geo);
 }
 
+void SkBaseDevice::setup(SkPixelGeometry geo, Usage usage) {
+    switch (usage) {
+        case kGeneral_Usage:
+            break;
+        case kSaveLayer_Usage:
+            if (this->imageInfo().alphaType() != kOpaque_SkAlphaType) {
+                geo = kUnknown_SkPixelGeometry;
+            }
+            break;
+        case kImageFilter_Usage:
+            geo = kUnknown_SkPixelGeometry;
+            break;
+    }
+    fLeakyProperties->setPixelGeometry(geo);
+}
+
 SkSurface* SkBaseDevice::newSurface(const SkImageInfo&, const SkSurfaceProps&) { return NULL; }
 
 const void* SkBaseDevice::peekPixels(SkImageInfo*, size_t*) { return NULL; }
 
 void SkBaseDevice::drawDRRect(const SkDraw& draw, const SkRRect& outer,
                               const SkRRect& inner, const SkPaint& paint) {
     SkPath path;
     path.addRRect(outer);
     path.addRRect(inner);
     path.setFillType(SkPath::kEvenOdd_FillType);
@@ skipping 102 matching lines @@
 
 void* SkBaseDevice::onAccessPixels(SkImageInfo* info, size_t* rowBytes) {
     return NULL;
 }
 
 bool SkBaseDevice::EXPERIMENTAL_drawPicture(SkCanvas*, const SkPicture*, const SkMatrix*,
                                             const SkPaint*) {
     // The base class doesn't perform any accelerated picture rendering
     return false;
 }
+
+//////////////////////////////////////////////////////////////////////////////////////////
+
+bool SkBaseDevice::disableLCD(const SkPaint& paint) const {
+    if (!paint.isLCDRenderText() || !paint.isAntiAlias()) {
+        return false;
+    }
+
+    if (kUnknown_SkPixelGeometry == fLeakyProperties->pixelGeometry()) {
+        return true;
+    }
+
+    return this->onDisableLCD(paint);
+}
+