v811_spc009/vendor/huanglong/interfaces/hwgraphics/1.0/IGraphics.hal

/*
 * Copyright (C) 2019 The Hisilicon Technologies Co., Ltd.
 *
 * 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.
 */

package vendor.huanglong.hardware.hwgraphics@1.0;

import IGraphicsCallback;

interface IGraphics {
     /**
     * init video output window.
     *
     * @param uint32_t the width of window
     * @param uint32_t the heighe of window
     * @return status result of init window.
     */
    InitWindow(uint32_t width, uint32_t height) generates (uint32_t ret);

    /**
     * deinit video output window.
     *
     * @return status result of deinit window.
     */
    DeinitWindow() generates (uint32_t ret);

     /**
     * queue buffer handle to video output window
     *
     * @param hanlde buffer handle of image data.
     * @return status result of queue frame.
     */
    QueueFrame(handle rawHandle)generates (uint32_t ret);

     /**
     * sync frames sent to the video output window.
     *
     * @return status result of sync frame.
     */
    DoFramexSync() generates (uint32_t ret);

    /**
     * query the screen format.
     *
     * @return screen format, default value: 4K.
     */
    GetScreenFormat() generates(uint32_t type);

    /**
     * register rm for video output window.
     *
     * @return status result of register rm.
     */
    RegisterRm() generates (uint32_t ret);

    /**
     * unregister rm for video output window.
     *
     * @return status result of unregister rm.
     */
    UnregisterRm() generates (uint32_t ret);

    /**
     * acquire video output window source by rm.
     *
     * @return status result of acquire video output window source.
     */
    AcquireRmResource() generates (uint32_t ret);

    /**
     * set callback function.
     *
     * @return status result of set callback function.
     */
    SetCallback(IGraphicsCallback callback) generates (uint32_t ret);

    /**
     * Init vo module.
     *
     * @return uint32_t result of init vo module.
     */
    InitVoModule() generates (uint32_t ret);

    /**
     * Close vo window.
     *
     * @param uint32_t the handle of vo winow
     * @return closeVoWindow result of close vo window.
     */
    CloseVoWindow(uint32_t window) generates (uint32_t ret);

    /**
     * Deinit vo module.
     *
     * @return uint32_t result of deinit vo module.
     */
    DeinitVoModule() generates (uint32_t ret);

    /**
     * capture screen by VDP module
     *
     * @param CaptureType capture type,  refer to CaptureType definition
     * @param handle the buffer which is used to store Screenshot data
     * @return uint32_t result of capture screen by VDP module.
     */
    CaptureScreenByVDP(CaptureType type, handle rawHandle) generates (uint32_t ret);

    /**
     * Create overlay window if necessary and queue overlay buffer to vo module.
     *
     * @param HwLayer layer information, refer to HwLayer definition
     * @param bool whether the related layer is visible
     * @return uint32_t result of present overlay
     * @return handle wrap release fence of overlay buffer which is set by vo module
     */
    PresentOverlay(HwLayer layer, bool visible) generates(uint32_t ret, handle releaseFence);

    /**
     * set display area of overlay window
     *
     * @param int32_t the sequenece of related layer
     * @param HwRect the display rect of overlay window
     * @return void.
     */
    SetOverlayPosition(int32_t sequence, HwRect position) generates(int32_t ret);

    /**
     * set content crop of overlay buffer.
     *
     * @param int32_t the sequenece of related layer
     * @param HwRect the crop rect of overlay buffer
     * @return void.
     */
    SetOverlayCrop(int32_t sequence, HwRect crop) generates(int32_t ret);

    /**
     * set transform of overlay window.
     *
     * @param int32_t the sequenece of related layer
     * @param uint32_t the transform of overlay window
     *        refer to hardware/libhardware/include/hardware/hwcomposer2.h
     * @return void.
     */

    SetOverlayTransform(int32_t sequence, uint32_t transform) generates(int32_t ret);

    /**
     * close overlay window and release related resource
     *
     * @param int32_t the sequenece of related layer
     * @return void.
     */
    CloseOverlay(int32_t sequence);
};