1 files changed, 73 insertions, 0 deletions
diff --git a/src/gpu/GrDDLContext.cpp b/src/gpu/GrDDLContext.cpp
new file mode 100644
index 0000000000..eba0379aa8
--- /dev/null
+++ b/src/gpu/GrDDLContext.cpp
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2018 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "GrContext.h"
+
+#include "GrContextPriv.h"
+
+/**
+ * The DDL Context is the one in effect during DDL Recording. It isn't backed by a GrGPU and
+ * cannot allocate any GPU resources.
+ */
+class SK_API GrDDLContext : public GrContext {
+public:
+    GrDDLContext(sk_sp<GrContextThreadSafeProxy> proxy)
+            : INHERITED(proxy->fBackend, proxy->fContextUniqueID) {
+        fCaps = proxy->fCaps;
+        fThreadSafeProxy = std::move(proxy);
+    }
+
+    ~GrDDLContext() override {
+        // The GrDDLContext doesn't actually own the fRestrictedAtlasManager so don't delete it
+    }
+
+    void abandonContext() override {
+        SkASSERT(0); // abandoning in a DDL Recorder doesn't make a whole lot of sense
+        INHERITED::abandonContext();
+    }
+
+    void releaseResourcesAndAbandonContext() override {
+        SkASSERT(0); // abandoning in a DDL Recorder doesn't make a whole lot of sense
+        INHERITED::releaseResourcesAndAbandonContext();
+    }
+
+    void freeGpuResources() override {
+        SkASSERT(0); // freeing resources in a DDL Recorder doesn't make a whole lot of sense
+        INHERITED::freeGpuResources();
+    }
+
+protected:
+    bool init(const GrContextOptions& options) override {
+        SkASSERT(fCaps);  // should've been set in ctor
+        SkASSERT(fThreadSafeProxy); // should've been set in the ctor
+
+        if (!INHERITED::initCommon(options)) {
+            return false;
+        }
+
+        return true;
+    }
+
+    GrAtlasManager* onGetAtlasManager() override {
+        SkASSERT(0);   // the DDL Recorders should never invoke this
+        return nullptr;
+    }
+
+private:
+    typedef GrContext INHERITED;
+};
+
+sk_sp<GrContext> GrContextPriv::MakeDDL(sk_sp<GrContextThreadSafeProxy> proxy) {
+    sk_sp<GrContext> context(new GrDDLContext(proxy));
+
+    // Note: we aren't creating a Gpu here. This causes the resource provider & cache to
+    // also not be created
+    if (!context->init(proxy->fOptions)) {
+        return nullptr;
+    }
+    return context;
+}