Added --deepColor option to SampleApp, triggers creation of a ten-bit/channel

buffer. (Only on Windows at the moment). Uses new effect to do the final
gamma adjustment

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1919993002

Review-Url: https://codereview.chromium.org/1919993002

7 files changed, 16 insertions, 7 deletions

diff --git a/include/views/SkOSWindow_Android.h b/include/views/SkOSWindow_Android.h
index 74175bafd1..234e65c256 100644
--- a/include/views/SkOSWindow_Android.h
+++ b/include/views/SkOSWindow_Android.h
@@ -28,7 +28,8 @@ public:
         kNativeGL_BackEndType,
     };
 
-    bool attach(SkBackEndTypes attachType, int msaaSampleCount, AttachmentInfo* info);
+    bool attach(SkBackEndTypes attachType, int msaaSampleCount, bool deepColor,
+                AttachmentInfo* info);
     void release();
     void present();
     bool makeFullscreen() { return true; }
diff --git a/include/views/SkOSWindow_Mac.h b/include/views/SkOSWindow_Mac.h
index efa97bf872..4558a58833 100644
--- a/include/views/SkOSWindow_Mac.h
+++ b/include/views/SkOSWindow_Mac.h
@@ -33,7 +33,8 @@ public:
     };
 
     void    release();
-    bool    attach(SkBackEndTypes attachType, int msaaSampleCount, AttachmentInfo*);
+    bool    attach(SkBackEndTypes attachType, int msaaSampleCount, bool deepColor,
+                   AttachmentInfo*);
     void    present();
 
     bool    makeFullscreen();
diff --git a/include/views/SkOSWindow_SDL.h b/include/views/SkOSWindow_SDL.h
index 6823441715..1ab51ca415 100644
--- a/include/views/SkOSWindow_SDL.h
+++ b/include/views/SkOSWindow_SDL.h
@@ -29,7 +29,7 @@ public:
     };
 
     void release();
-    bool attach(SkBackEndTypes attachType, int msaaSampleCount, AttachmentInfo*);
+    bool attach(SkBackEndTypes attachType, int msaaSampleCount, bool deepColor, AttachmentInfo*);
     void present();
     bool makeFullscreen();
     void setVsync(bool);
diff --git a/include/views/SkOSWindow_Unix.h b/include/views/SkOSWindow_Unix.h
index 30386da183..2e1b9ccc81 100644
--- a/include/views/SkOSWindow_Unix.h
+++ b/include/views/SkOSWindow_Unix.h
@@ -44,7 +44,7 @@ public:
 #endif // SK_COMMAND_BUFFER
     };
 
-    bool attach(SkBackEndTypes attachType, int msaaSampleCount, AttachmentInfo*);
+    bool attach(SkBackEndTypes attachType, int msaaSampleCount, bool deepColor, AttachmentInfo*);
     void release();
     void present();
 
diff --git a/include/views/SkOSWindow_Win.h b/include/views/SkOSWindow_Win.h
index eb8b1fc892..8d5378108e 100644
--- a/include/views/SkOSWindow_Win.h
+++ b/include/views/SkOSWindow_Win.h
@@ -47,7 +47,7 @@ public:
 #endif // SK_SUPPORT_GPU
     };
 
-    bool attach(SkBackEndTypes attachType, int msaaSampleCount, AttachmentInfo*);
+    bool attach(SkBackEndTypes attachType, int msaaSampleCount, bool deepColor, AttachmentInfo*);
     void release();
     void present();
 
@@ -127,7 +127,7 @@ private:
 
     void updateSize();
 #if SK_SUPPORT_GPU
-    bool attachGL(int msaaSampleCount, AttachmentInfo* info);
+    bool attachGL(int msaaSampleCount, bool deepColor, AttachmentInfo* info);
     void detachGL();
     void presentGL();
 
diff --git a/include/views/SkOSWindow_iOS.h b/include/views/SkOSWindow_iOS.h
index 5a8b2e3d2f..c0b2fc3f0a 100644
--- a/include/views/SkOSWindow_iOS.h
+++ b/include/views/SkOSWindow_iOS.h
@@ -22,7 +22,8 @@ public:
     };
 
     void    release();
-    bool    attach(SkBackEndTypes attachType, int msaaSampleCount, AttachmentInfo*);
+    bool    attach(SkBackEndTypes attachType, int msaaSampleCount, bool deepColor,
+                   AttachmentInfo*);
     void    present();
 
     bool makeFullscreen() { return true; }
diff --git a/include/views/SkWindow.h b/include/views/SkWindow.h
index b4fabd253e..341046aacc 100644
--- a/include/views/SkWindow.h
+++ b/include/views/SkWindow.h
@@ -32,8 +32,14 @@ public:
     virtual ~SkWindow();
 
     struct AttachmentInfo {
+        AttachmentInfo()
+            : fSampleCount(0)
+            , fStencilBits(0)
+            , fColorBits(0) {}
+
         int fSampleCount;
         int fStencilBits;
+        int fColorBits;
     };
 
     SkSurfaceProps getSurfaceProps() const { return fSurfaceProps; }