Fix mixed samples stencil clip

src/gpu/gl/GrGLRenderTarget.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrGLRenderTarget_DEFINED
 #define GrGLRenderTarget_DEFINED
 
+#include "GrGpu.h"
 #include "GrGLIRect.h"
 #include "GrRenderTarget.h"
 #include "SkScalar.h"
 
 class GrGLGpu;
 class GrGLStencilAttachment;
 
 class GrGLRenderTarget : public GrRenderTarget {
 public:
     // set fTexFBOID to this value to indicate that it is multisampled but
@@ skipping 41 matching lines @@
 
     /** When we don't own the FBO ID we don't attempt to modify its attachments. */
     bool canAttemptStencilAttachment() const override {
         return kCached_LifeCycle == fRTLifecycle || kUncached_LifeCycle == fRTLifecycle;
     }
 
     // GrGLRenderTarget overrides dumpMemoryStatistics so it can log its texture and renderbuffer
     // components seperately.
     void dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const override;
 
-    /**
-     * @return true if sample locations colocated at pixel center have been set for this
-     *         render target.  Requires support for NV_sample_locations.
-     */
-    bool usesColocatedSampleLocations() const {
-        return fUsesColocatedSampleLocations;
+    bool getCachedCoCenteredSamplesState(GrGpu::ResetTimestamp* stamp) const {
+        *stamp = fHasCoCenteredSamplesTimestamp;
+        return fHasCoCenteredSamples;
     }
 
-    /**
-     * Flag render target as using or not using sample locations colocated at pixel center.
-     */
-    void flagAsUsingColocatedSampleLocations(bool useColocatedSampleLocations) {
-        fUsesColocatedSampleLocations = useColocatedSampleLocations;
+    void setCachedCoCenteredSamplesState(bool hasCoCenteredSamples, GrGpu::ResetTimestamp stamp) {
+        fHasCoCenteredSamples = hasCoCenteredSamples;
+        fHasCoCenteredSamplesTimestamp = stamp;
     }
 
 protected:
     // The public constructor registers this object with the cache. However, only the most derived
     // class should register with the cache. This constructor does not do the registration and
     // rather moves that burden onto the derived class.
     enum Derived { kDerived };
     GrGLRenderTarget(GrGLGpu*, const GrSurfaceDesc&, const IDDesc&, Derived);
 
     void init(const GrSurfaceDesc&, const IDDesc&);
@@ skipping 11 matching lines @@
 
     GrGLGpu* getGLGpu() const;
     bool completeStencilAttachment() override;
 
     // The total size of the resource (including all pixels) for a single sample.
     size_t totalBytesPerSample() const;
     int msaaSamples() const;
     // The number total number of samples, including both MSAA and resolve texture samples.
     int totalSamples() const;
 
-    GrGLuint    fRTFBOID;
-    GrGLuint    fTexFBOID;
-    GrGLuint    fMSColorRenderbufferID;
+    GrGLuint                fRTFBOID;
+    GrGLuint                fTexFBOID;
+    GrGLuint                fMSColorRenderbufferID;
+    bool                    fHasCoCenteredSamples;
+    GrGpu::ResetTimestamp   fHasCoCenteredSamplesTimestamp;
 
     // We track this separately from GrGpuResource because this may be both a texture and a render
     // target, and the texture may be wrapped while the render target is not.
-    LifeCycle   fRTLifecycle;
+    LifeCycle               fRTLifecycle;
 
     // when we switch to this render target we want to set the viewport to
     // only render to content area (as opposed to the whole allocation) and
     // we want the rendering to be at top left (GL has origin in bottom left)
-    GrGLIRect   fViewport;
+    GrGLIRect               fViewport;
 
     // onGpuMemorySize() needs to know the VRAM footprint of the FBO(s). However, abandon and
     // release zero out the IDs and the cache needs to know the size even after those actions.
-    size_t      fGpuMemorySize;
-
-    // True if sample locations colocated at pixel center are currently in use, false if default
-    // sample locations are currently in use.
-    bool        fUsesColocatedSampleLocations;
+    size_t                  fGpuMemorySize;
 
     typedef GrRenderTarget INHERITED;
 };
 
 #endif