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path: root/libs/hwui/pipeline/skia/VkFunctorDrawable.cpp
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/*
 * Copyright (C) 2018 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.
 */

#include "VkFunctorDrawable.h"
#include <private/hwui/DrawVkInfo.h>

#include <GrBackendDrawableInfo.h>
#include <SkImage.h>
#include <utils/Color.h>
#include <utils/Trace.h>
#include <utils/TraceUtils.h>
#include <vk/GrVkTypes.h>
#include <thread>
#include "thread/ThreadBase.h"
#include "utils/TimeUtils.h"

namespace android {
namespace uirenderer {
namespace skiapipeline {

VkFunctorDrawHandler::VkFunctorDrawHandler(Functor* functor) : INHERITED(), mFunctor(functor) {}

VkFunctorDrawHandler::~VkFunctorDrawHandler() {
    // TODO(cblume) Fill in the DrawVkInfo parameters.
    (*mFunctor)(DrawVkInfo::kModePostComposite, nullptr);
}

void VkFunctorDrawHandler::draw(const GrBackendDrawableInfo& info) {
    ATRACE_CALL();

    GrVkDrawableInfo vulkan_info;
    if (!info.getVkDrawableInfo(&vulkan_info)) {
        return;
    }

    DrawVkInfo draw_vk_info;
    // TODO(cblume) Fill in the rest of the parameters and test the actual call.
    draw_vk_info.isLayer = true;

    (*mFunctor)(DrawVkInfo::kModeComposite, &draw_vk_info);
}

VkFunctorDrawable::~VkFunctorDrawable() {
    if (auto lp = std::get_if<LegacyFunctor>(&mAnyFunctor)) {
        if (lp->listener) {
            lp->listener->onGlFunctorReleased(lp->functor);
        }
    }
}

void VkFunctorDrawable::onDraw(SkCanvas* /*canvas*/) {
    LOG_ALWAYS_FATAL("VkFunctorDrawable::onDraw() should never be called.");
    // Instead of calling onDraw(), the call should come from onSnapGpuDrawHandler.
}

std::unique_ptr<FunctorDrawable::GpuDrawHandler> VkFunctorDrawable::onSnapGpuDrawHandler(
        GrBackendApi backendApi, const SkMatrix& matrix) {
    if (backendApi != GrBackendApi::kVulkan) {
        return nullptr;
    }
    std::unique_ptr<VkFunctorDrawHandler> draw;
    if (mAnyFunctor.index() == 0) {
        LOG_ALWAYS_FATAL("Not implemented");
        return nullptr;
    } else {
        return std::make_unique<VkFunctorDrawHandler>(std::get<1>(mAnyFunctor).functor);
    }
}

}  // namespace skiapipeline
}  // namespace uirenderer
}  // namespace android