Refactored SkColorSpace and added in a Lab PCS GM

samplecode/SampleApp.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 "SampleApp.h"
 
 #include "OverView.h"
 #include "Resources.h"
 #include "SampleCode.h"
 #include "SkAnimTimer.h"
 #include "SkCanvas.h"
-#include "SkColorSpace_Base.h"
+#include "SkColorSpace_XYZ.h"
 #include "SkCommandLineFlags.h"
 #include "SkData.h"
 #include "SkDocument.h"
 #include "SkGammaColorFilter.h"
 #include "SkGraphics.h"
 #include "SkImage_Base.h"
 #include "SkImageEncoder.h"
 #include "SkOSFile.h"
 #include "SkPaint.h"
 #include "SkPaintFilterCanvas.h"
@@ skipping 1643 matching lines @@
                     colorSpace = SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named);
                 }
                 break;
             case kLegacy_OutputColorSpace:
             default:
                 // Do nothing
                 break;
         }
         if (kRGBA_F16_SkColorType == gConfig[selected].fColorType) {
             SkASSERT(colorSpace);
-            colorSpace = as_CSB(colorSpace)->makeLinearGamma();
+            SkASSERT(SkColorSpace_Base::Type::kXYZ == as_CSB(colorSpace)->type());
+            SkColorSpace_XYZ* csXYZ = static_cast<SkColorSpace_XYZ*>(colorSpace.get());
+            colorSpace = csXYZ->makeLinearGamma();
         }
         this->setDeviceColorType(gConfig[selected].fColorType, colorSpace);
         return true;
     }
     if (SkOSMenu::FindSwitchState(evt, "Slide Show", nullptr)) {
         this->toggleSlideshow();
         return true;
     }
     if (SkOSMenu::FindTriState(evt, "AA", &fAAState) ||
         SkOSMenu::FindTriState(evt, "LCD", &fLCDState) ||
@@ skipping 707 matching lines @@
 #ifdef SK_BUILD_FOR_MAC
     setenv("ANDROID_ROOT", "/android/device/data", 0);
 #endif
     SkGraphics::Init();
     SkEvent::Init();
 }
 
 void application_term() {
     SkEvent::Term();
 }