libs/renderengine/skia/SkiaVkRenderEngine.h

/*
 * Copyright 2022 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef SF_SKIAVKRENDERENGINE_H_
#define SF_SKIAVKRENDERENGINE_H_

// Allow the SkiaVkRenderEngine class to not be compiled, to save space
// NOTE: In order to build this class, define `RE_SKIAVK` in a build file.
#ifdef RE_SKIAVK

#include <vk/GrVkBackendContext.h>

#include "SkiaRenderEngine.h"

namespace android {
namespace renderengine {
namespace skia {

class SkiaVkRenderEngine : public SkiaRenderEngine {
public:
    // Returns false if Vulkan implementation can't support SkiaVkRenderEngine.
    static bool canSupportSkiaVkRenderEngine();
    static std::unique_ptr<SkiaVkRenderEngine> create(const RenderEngineCreationArgs& args);
    ~SkiaVkRenderEngine() override;

    int getContextPriority() override;

protected:
    // Implementations of abstract SkiaRenderEngine functions specific to
    // rendering backend
    virtual SkiaRenderEngine::Contexts createDirectContexts(const GrContextOptions& options);
    bool supportsProtectedContentImpl() const override;
    bool useProtectedContextImpl(GrProtected isProtected) override;
    void waitFence(GrDirectContext* grContext, base::borrowed_fd fenceFd) override;
    base::unique_fd flushAndSubmit(GrDirectContext* context) override;
    void appendBackendSpecificInfoToDump(std::string& result) override;

private:
    SkiaVkRenderEngine(const RenderEngineCreationArgs& args);
    base::unique_fd flush();

    GrVkBackendContext mBackendContext;
};

} // namespace skia
} // namespace renderengine
} // namespace android

#endif // RE_SKIAVK
#endif // SF_SKIAVKRENDERENGINE_H_