Maybe fix numStencilBits TSAN crash

Bug: skia:7390
Change-Id: Ied9c92147324ddb1245df796cd201df35657bbe0
Reviewed-on: https://skia-review.googlesource.com/143304
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/gpu/GrOpList.cpp b/src/gpu/GrOpList.cpp
index c724ea9ba4..c9b61bedab 100644
--- a/src/gpu/GrOpList.cpp
+++ b/src/gpu/GrOpList.cpp
@@ -10,6 +10,7 @@
 #include "GrContext.h"
 #include "GrDeferredProxyUploader.h"
 #include "GrMemoryPool.h"
+#include "GrRenderTargetPriv.h"
 #include "GrSurfaceProxy.h"
 #include "GrTextureProxyPriv.h"
 
@@ -138,6 +139,27 @@ bool GrOpList::isInstantiated() const {
     return fTarget.get()->priv().isInstantiated();
 }
 
+bool GrOpList::isFullyInstantiated() const {
+    if (!this->isInstantiated()) {
+        return false;
+    }
+
+    GrSurfaceProxy* proxy = fTarget.get();
+    bool needsStencil = proxy->asRenderTargetProxy()
+                                        ? proxy->asRenderTargetProxy()->needsStencil()
+                                        : false;
+
+    if (needsStencil) {
+        GrRenderTarget* rt = proxy->priv().peekRenderTarget();
+
+        if (!rt->renderTargetPriv().getStencilAttachment()) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
 #ifdef SK_DEBUG
 static const char* op_to_name(GrLoadOp op) {
     return GrLoadOp::kLoad == op ? "load" : GrLoadOp::kClear == op ? "clear" : "discard";