1 files changed, 66 insertions, 0 deletions
diff --git a/src/gpu/gl/GrGLStencilAttachment.h b/src/gpu/gl/GrGLStencilAttachment.h
new file mode 100644
index 0000000000..fd1214e576
--- /dev/null
+++ b/src/gpu/gl/GrGLStencilAttachment.h
@@ -0,0 +1,66 @@
+/*
+ * 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 GrGLStencilAttachment_DEFINED
+#define GrGLStencilAttachment_DEFINED
+
+#include "gl/GrGLInterface.h"
+#include "GrStencilAttachment.h"
+
+class GrGLStencilAttachment : public GrStencilAttachment {
+public:
+    static const GrGLenum kUnknownInternalFormat = ~0U;
+    static const GrGLuint kUnknownBitCount = ~0U;
+    struct Format {
+        GrGLenum  fInternalFormat;
+        GrGLuint  fStencilBits;
+        GrGLuint  fTotalBits;
+        bool      fPacked;
+    };
+
+    struct IDDesc {
+        IDDesc() : fRenderbufferID(0), fLifeCycle(kCached_LifeCycle) {}
+        GrGLuint fRenderbufferID;
+        GrGpuResource::LifeCycle fLifeCycle;
+    };
+
+    GrGLStencilAttachment(GrGpu* gpu,
+                      const IDDesc& idDesc,
+                      int width, int height,
+                      int sampleCnt,
+                      const Format& format)
+        : GrStencilAttachment(gpu, idDesc.fLifeCycle, width, height, format.fStencilBits, sampleCnt)
+        , fFormat(format)
+        , fRenderbufferID(idDesc.fRenderbufferID) {
+        this->registerWithCache();
+    }
+
+    GrGLuint renderbufferID() const {
+        return fRenderbufferID;
+    }
+
+    const Format& format() const { return fFormat; }
+
+protected:
+    // overrides of GrResource
+    void onRelease() override;
+    void onAbandon() override;
+
+private:
+    size_t onGpuMemorySize() const override;
+
+    Format fFormat;
+    // may be zero for external SBs associated with external RTs
+    // (we don't require the client to give us the id, just tell
+    // us how many bits of stencil there are).
+    GrGLuint fRenderbufferID;
+
+    typedef GrStencilAttachment INHERITED;
+};
+
+#endif