1 files changed, 275 insertions, 0 deletions
diff --git a/src/deps/skia/include/gpu/GrRecordingContext.h b/src/deps/skia/include/gpu/GrRecordingContext.h
new file mode 100644
index 000000000..c287f731b
--- /dev/null
+++ b/src/deps/skia/include/gpu/GrRecordingContext.h
@@ -0,0 +1,275 @@
+/*
+ * 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 GrRecordingContext_DEFINED
+#define GrRecordingContext_DEFINED
+
+#include "include/core/SkRefCnt.h"
+#include "include/private/GrImageContext.h"
+#include "include/private/SkTArray.h"
+
+#if GR_GPU_STATS && GR_TEST_UTILS
+#include <map>
+#include <string>
+#endif
+
+class GrAuditTrail;
+class GrBackendFormat;
+class GrDrawingManager;
+class GrOnFlushCallbackObject;
+class GrMemoryPool;
+class GrProgramDesc;
+class GrProgramInfo;
+class GrProxyProvider;
+class GrRecordingContextPriv;
+class GrSubRunAllocator;
+class GrSurfaceProxy;
+class GrTextBlobRedrawCoordinator;
+class GrThreadSafeCache;
+class SkArenaAlloc;
+class SkJSONWriter;
+
+#if GR_TEST_UTILS
+class SkString;
+#endif
+
+class GrRecordingContext : public GrImageContext {
+public:
+    ~GrRecordingContext() override;
+
+    SK_API GrBackendFormat defaultBackendFormat(SkColorType ct, GrRenderable renderable) const {
+        return INHERITED::defaultBackendFormat(ct, renderable);
+    }
+
+    /**
+     * Reports whether the GrDirectContext associated with this GrRecordingContext is abandoned.
+     * When called on a GrDirectContext it may actively check whether the underlying 3D API
+     * device/context has been disconnected before reporting the status. If so, calling this
+     * method will transition the GrDirectContext to the abandoned state.
+     */
+    bool abandoned() override { return INHERITED::abandoned(); }
+
+    /*
+     * Can a SkSurface be created with the given color type. To check whether MSAA is supported
+     * use maxSurfaceSampleCountForColorType().
+     */
+    SK_API bool colorTypeSupportedAsSurface(SkColorType colorType) const {
+        if (kR16G16_unorm_SkColorType == colorType ||
+            kA16_unorm_SkColorType == colorType ||
+            kA16_float_SkColorType == colorType ||
+            kR16G16_float_SkColorType == colorType ||
+            kR16G16B16A16_unorm_SkColorType == colorType ||
+            kGray_8_SkColorType == colorType) {
+            return false;
+        }
+
+        return this->maxSurfaceSampleCountForColorType(colorType) > 0;
+    }
+
+    /**
+     * Gets the maximum supported texture size.
+     */
+    SK_API int maxTextureSize() const;
+
+    /**
+     * Gets the maximum supported render target size.
+     */
+    SK_API int maxRenderTargetSize() const;
+
+    /**
+     * Can a SkImage be created with the given color type.
+     */
+    SK_API bool colorTypeSupportedAsImage(SkColorType) 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) const;
+
+    // Provides access to functions that aren't part of the public API.
+    GrRecordingContextPriv priv();
+    const GrRecordingContextPriv priv() const;  // NOLINT(readability-const-return-type)
+
+    // The collection of specialized memory arenas for different types of data recorded by a
+    // GrRecordingContext. Arenas does not maintain ownership of the pools it groups together.
+    class Arenas {
+    public:
+        Arenas(SkArenaAlloc*, GrSubRunAllocator*);
+
+        // For storing pipelines and other complex data as-needed by ops
+        SkArenaAlloc* recordTimeAllocator() { return fRecordTimeAllocator; }
+
+        // For storing GrTextBlob SubRuns
+        GrSubRunAllocator* recordTimeSubRunAllocator() { return fRecordTimeSubRunAllocator; }
+
+    private:
+        SkArenaAlloc* fRecordTimeAllocator;
+        GrSubRunAllocator* fRecordTimeSubRunAllocator;
+    };
+
+protected:
+    friend class GrRecordingContextPriv;    // for hidden functions
+    friend class SkDeferredDisplayList;     // for OwnedArenas
+    friend class SkDeferredDisplayListPriv; // for ProgramData
+
+    // Like Arenas, but preserves ownership of the underlying pools.
+    class OwnedArenas {
+    public:
+        OwnedArenas(bool ddlRecording);
+        ~OwnedArenas();
+
+        Arenas get();
+
+        OwnedArenas& operator=(OwnedArenas&&);
+
+    private:
+        bool fDDLRecording;
+        std::unique_ptr<SkArenaAlloc> fRecordTimeAllocator;
+        std::unique_ptr<GrSubRunAllocator> fRecordTimeSubRunAllocator;
+    };
+
+    GrRecordingContext(sk_sp<GrContextThreadSafeProxy>, bool ddlRecording);
+
+    bool init() override;
+
+    void abandonContext() override;
+
+    GrDrawingManager* drawingManager();
+
+    // There is no going back from this method. It should only be called to control the timing
+    // during abandon or destruction of the context.
+    void destroyDrawingManager();
+
+    Arenas arenas() { return fArenas.get(); }
+    // This entry point should only be used for DDL creation where we want the ops' lifetime to
+    // match that of the DDL.
+    OwnedArenas&& detachArenas();
+
+    GrProxyProvider* proxyProvider() { return fProxyProvider.get(); }
+    const GrProxyProvider* proxyProvider() const { return fProxyProvider.get(); }
+
+    struct ProgramData {
+        ProgramData(std::unique_ptr<const GrProgramDesc>, const GrProgramInfo*);
+        ProgramData(ProgramData&&);                     // for SkTArray
+        ProgramData(const ProgramData&) = delete;
+        ~ProgramData();
+
+        const GrProgramDesc& desc() const { return *fDesc; }
+        const GrProgramInfo& info() const { return *fInfo; }
+
+    private:
+        // TODO: store the GrProgramDescs in the 'fRecordTimeData' arena
+        std::unique_ptr<const GrProgramDesc> fDesc;
+        // The program infos should be stored in 'fRecordTimeData' so do not need to be ref
+        // counted or deleted in the destructor.
+        const GrProgramInfo* fInfo = nullptr;
+    };
+
+    // This entry point gives the recording context a chance to cache the provided
+    // programInfo. The DDL context takes this opportunity to store programInfos as a sidecar
+    // to the DDL.
+    virtual void recordProgramInfo(const GrProgramInfo*) {}
+    // This asks the recording context to return any programInfos it may have collected
+    // via the 'recordProgramInfo' call. It is up to the caller to ensure that the lifetime
+    // of the programInfos matches the intended use. For example, in DDL-record mode it
+    // is known that all the programInfos will have been allocated in an arena with the
+    // same lifetime at the DDL itself.
+    virtual void detachProgramData(SkTArray<ProgramData>*) {}
+
+    GrTextBlobRedrawCoordinator* getTextBlobRedrawCoordinator();
+    const GrTextBlobRedrawCoordinator* getTextBlobRedrawCoordinator() const;
+
+    GrThreadSafeCache* threadSafeCache();
+    const GrThreadSafeCache* threadSafeCache() const;
+
+    /**
+     * Registers an object for flush-related callbacks. (See GrOnFlushCallbackObject.)
+     *
+     * NOTE: the drawing manager tracks this object as a raw pointer; it is up to the caller to
+     * ensure its lifetime is tied to that of the context.
+     */
+    void addOnFlushCallbackObject(GrOnFlushCallbackObject*);
+
+    GrRecordingContext* asRecordingContext() override { return this; }
+
+    class Stats {
+    public:
+        Stats() = default;
+
+#if GR_GPU_STATS
+        void reset() { *this = {}; }
+
+        int numPathMasksGenerated() const { return fNumPathMasksGenerated; }
+        void incNumPathMasksGenerated() { fNumPathMasksGenerated++; }
+
+        int numPathMaskCacheHits() const { return fNumPathMaskCacheHits; }
+        void incNumPathMasksCacheHits() { fNumPathMaskCacheHits++; }
+
+#if GR_TEST_UTILS
+        void dump(SkString* out) const;
+        void dumpKeyValuePairs(SkTArray<SkString>* keys, SkTArray<double>* values) const;
+#endif
+
+    private:
+        int fNumPathMasksGenerated{0};
+        int fNumPathMaskCacheHits{0};
+
+#else // GR_GPU_STATS
+        void incNumPathMasksGenerated() {}
+        void incNumPathMasksCacheHits() {}
+
+#if GR_TEST_UTILS
+        void dump(SkString*) const {}
+        void dumpKeyValuePairs(SkTArray<SkString>* keys, SkTArray<double>* values) const {}
+#endif
+#endif // GR_GPU_STATS
+    } fStats;
+
+#if GR_GPU_STATS && GR_TEST_UTILS
+    struct DMSAAStats {
+        void dumpKeyValuePairs(SkTArray<SkString>* keys, SkTArray<double>* values) const;
+        void dump() const;
+        void merge(const DMSAAStats&);
+        int fNumRenderPasses = 0;
+        int fNumMultisampleRenderPasses = 0;
+        std::map<std::string, int> fTriggerCounts;
+    };
+
+    DMSAAStats fDMSAAStats;
+#endif
+
+    Stats* stats() { return &fStats; }
+    const Stats* stats() const { return &fStats; }
+    void dumpJSON(SkJSONWriter*) const;
+
+protected:
+    // Delete last in case other objects call it during destruction.
+    std::unique_ptr<GrAuditTrail>     fAuditTrail;
+
+private:
+    OwnedArenas                       fArenas;
+
+    std::unique_ptr<GrDrawingManager> fDrawingManager;
+    std::unique_ptr<GrProxyProvider>  fProxyProvider;
+
+#if GR_TEST_UTILS
+    int fSuppressWarningMessages = 0;
+#endif
+
+    using INHERITED = GrImageContext;
+};
+
+/**
+ * Safely cast a possibly-null base context to direct context.
+ */
+static inline GrDirectContext* GrAsDirectContext(GrContext_Base* base) {
+    return base ? base->asDirectContext() : nullptr;
+}
+
+#endif