Implement canCopySurface for GrMock and GrMtl.

Bug: skia:
Change-Id: I60730bacb03b43e872c68fd7eb8e845ac0910f67
Reviewed-on: https://skia-review.googlesource.com/125730
Commit-Queue: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Auto-Submit: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>

3 files changed, 12 insertions, 4 deletions

diff --git a/include/gpu/GrCaps.h b/include/gpu/GrCaps.h
index b88146f374..0e81e236ef 100644
--- a/include/gpu/GrCaps.h
+++ b/include/gpu/GrCaps.h
@@ -236,10 +236,8 @@ public:
     /**
      * Returns whether or not we will be able to do a copy given the passed in params
      */
-    virtual bool canCopySurface(const GrSurfaceProxy* /*dst*/, const GrSurfaceProxy* /*src*/,
-                                const SkIRect& /*srcRect*/, const SkIPoint& /*dstPoint*/) const {
-        return true;
-    }
+    virtual bool canCopySurface(const GrSurfaceProxy* dst, const GrSurfaceProxy* src,
+                                const SkIRect& srcRect, const SkIPoint& dstPoint) const = 0;
 
     /**
      * This is can be called before allocating a texture to be a dst for copySurface. This is only
diff --git a/src/gpu/mock/GrMockCaps.h b/src/gpu/mock/GrMockCaps.h
index 65dd766d8d..e8d1cbdd5a 100644
--- a/src/gpu/mock/GrMockCaps.h
+++ b/src/gpu/mock/GrMockCaps.h
@@ -70,6 +70,11 @@ public:
     bool surfaceSupportsWritePixels(const GrSurface*) const override { return true; }
     bool surfaceSupportsReadPixels(const GrSurface*) const override { return true; }
 
+    bool canCopySurface(const GrSurfaceProxy* dst, const GrSurfaceProxy* src,
+                        const SkIRect& srcRect, const SkIPoint& dstPoint) const override {
+        return true;
+    }
+
     bool initDescForDstCopy(const GrRenderTargetProxy* src, GrSurfaceDesc* desc, GrSurfaceOrigin*,
                             bool* rectsMustMatch, bool* disallowSubrect) const override {
         return false;
diff --git a/src/gpu/mtl/GrMtlCaps.h b/src/gpu/mtl/GrMtlCaps.h
index c43d596e7f..0918f36807 100644
--- a/src/gpu/mtl/GrMtlCaps.h
+++ b/src/gpu/mtl/GrMtlCaps.h
@@ -46,6 +46,11 @@ public:
         return fPreferedStencilFormat;
     }
 #endif
+    bool canCopySurface(const GrSurfaceProxy* dst, const GrSurfaceProxy* src,
+                        const SkIRect& srcRect, const SkIPoint& dstPoint) const override {
+        return false;
+    }
+
     bool initDescForDstCopy(const GrRenderTargetProxy* src, GrSurfaceDesc* desc, GrSurfaceOrigin*,
                             bool* rectsMustMatch, bool* disallowSubrect) const override {
         return false;