1 files changed, 100 insertions, 0 deletions
diff --git a/gfx/skia/skia/include/private/gpu/ganesh/GrContext_Base.h b/gfx/skia/skia/include/private/gpu/ganesh/GrContext_Base.h
new file mode 100644
index 0000000000..ba7172e005
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+++ b/gfx/skia/skia/include/private/gpu/ganesh/GrContext_Base.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2019 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrContext_Base_DEFINED
+#define GrContext_Base_DEFINED
+
+#include "include/core/SkRefCnt.h"
+#include "include/gpu/GrBackendSurface.h"
+#include "include/gpu/GrContextOptions.h"
+#include "include/gpu/GrTypes.h"
+
+class GrBaseContextPriv;
+class GrCaps;
+class GrContextThreadSafeProxy;
+class GrDirectContext;
+class GrImageContext;
+class GrRecordingContext;
+enum class SkTextureCompressionType;
+
+class GrContext_Base : public SkRefCnt {
+public:
+    ~GrContext_Base() override;
+
+    /*
+     * Safely downcast to a GrDirectContext.
+     */
+    virtual GrDirectContext* asDirectContext() { return nullptr; }
+
+    /*
+     * The 3D API backing this context
+     */
+    SK_API GrBackendApi backend() const;
+
+    /*
+     * Retrieve the default GrBackendFormat for a given SkColorType and renderability.
+     * It is guaranteed that this backend format will be the one used by the GrContext
+     * SkColorType and SkSurfaceCharacterization-based createBackendTexture methods.
+     *
+     * The caller should check that the returned format is valid.
+     */
+    SK_API GrBackendFormat defaultBackendFormat(SkColorType, GrRenderable) const;
+
+    SK_API GrBackendFormat compressedBackendFormat(SkTextureCompressionType) const;
+
+    /**
+     * Gets the maximum supported sample count for a color type. 1 is returned if only non-MSAA
+     * rendering is supported for the color type. 0 is returned if rendering to this color type
+     * is not supported at all.
+     */
+    SK_API int maxSurfaceSampleCountForColorType(SkColorType colorType) const;
+
+    // TODO: When the public version is gone, rename to refThreadSafeProxy and add raw ptr ver.
+    sk_sp<GrContextThreadSafeProxy> threadSafeProxy();
+
+    // Provides access to functions that aren't part of the public API.
+    GrBaseContextPriv priv();
+    const GrBaseContextPriv priv() const;  // NOLINT(readability-const-return-type)
+
+protected:
+    friend class GrBaseContextPriv; // for hidden functions
+
+    GrContext_Base(sk_sp<GrContextThreadSafeProxy>);
+
+    virtual bool init();
+
+    /**
+     * An identifier for this context. The id is used by all compatible contexts. For example,
+     * if SkImages are created on one thread using an image creation context, then fed into a
+     * DDL Recorder on second thread (which has a recording context) and finally replayed on
+     * a third thread with a direct context, then all three contexts will report the same id.
+     * It is an error for an image to be used with contexts that report different ids.
+     */
+    uint32_t contextID() const;
+
+    bool matches(GrContext_Base* candidate) const {
+        return candidate && candidate->contextID() == this->contextID();
+    }
+
+    /*
+     * The options in effect for this context
+     */
+    const GrContextOptions& options() const;
+
+    const GrCaps* caps() const;
+    sk_sp<const GrCaps> refCaps() const;
+
+    virtual GrImageContext* asImageContext() { return nullptr; }
+    virtual GrRecordingContext* asRecordingContext() { return nullptr; }
+
+    sk_sp<GrContextThreadSafeProxy>         fThreadSafeProxy;
+
+private:
+    using INHERITED = SkRefCnt;
+};
+
+#endif