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/*
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* Copyright (C) 2017-2018 RockChip Limited. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* --------------------------------------------------------------------------------------------------------
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* File: platform_gralloc4.h
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*
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* Desc: 声明对 buffer_handle_t 实例的 get metadata, import_buffer/free_buffer, lock_buffer/unlock_buffer 等接口.
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* 这些接口都将基于 IMapper 4.0 (gralloc 4.0) 实现.
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*
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* -----------------------------------------------------------------------------------
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* < 习语 和 缩略语 > :
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*
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* -----------------------------------------------------------------------------------
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* Usage:
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*
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* Note:
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*
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* Author: ChenZhen
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*
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* Log:
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* init.
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----Fri Aug 28 10:10:14 2020
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*
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* --------------------------------------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------------------------------------
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* Include Files
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* ---------------------------------------------------------------------------------------------------------
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*/
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// #include <linux/kernel.h>
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#pragma once
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#include <stdint.h>
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#include <cutils/native_handle.h>
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#include <utils/Errors.h>
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#include <ui/PixelFormat.h>
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/* ---------------------------------------------------------------------------------------------------------
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* Macros Definition
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* ---------------------------------------------------------------------------------------------------------
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*/
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namespace gralloc4 {
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/*
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* 闫孝军反馈“4.19内核里面没这个format，要从linux 主线 5.2 以后里面反向porting 回来。4.19和5.2差别很大。
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* 反向porting有很多冲突要解决”，所以从上层HWC模块去规避这个问题，HWC实现如下：
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* 1.格式转换：
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* DRM_FORMAT_YUV420_10BIT => DRM_FORMAT_NV12_10
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* DRM_FORMAT_YUV420_8BIT => DRM_FORMAT_NV12
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* DRM_FORMAT_YUYV => DRM_FORMAT_NV16
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*
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* 2.Byte Stride 转换：
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* DRM_FORMAT_NV12_10 / DRM_FORMAT_NV12:
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* Byte stride = Byte stride / 1.5
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*
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* DRM_FORMAT_NV16:
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* Byte stride = Byte stride / 2
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*
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* 按上述实现，可以在当前版本保证视频送显正常，提供开关 WORKROUND_FOR_VOP2_DRIVER
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*/
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void set_drm_version(int version);
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/* ---------------------------------------------------------------------------------------------------------
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* Types and Structures Definition
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* ---------------------------------------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------------------------------------
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* Global Functions' Prototype
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* ---------------------------------------------------------------------------------------------------------
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*/
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/*
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* 获取 'handle' 引用的 graphic_buffer 的 internal_format.
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*/
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uint64_t get_format_modifier(buffer_handle_t handle);
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uint32_t get_fourcc_format(buffer_handle_t handle);
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int get_width(buffer_handle_t handle, uint64_t* width);
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int get_height(buffer_handle_t handle, uint64_t* height);
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int get_bit_per_pixel(buffer_handle_t handle, int* bit_per_pixel);
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int get_pixel_stride(buffer_handle_t handle, int* pixel_stride);
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int get_byte_stride(buffer_handle_t handle, int* byte_stride);
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int get_byte_stride_workround(buffer_handle_t handle, int* byte_stride);
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int get_format_requested(buffer_handle_t handle, int* format_requested);
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int get_usage(buffer_handle_t handle, uint64_t* usage);
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int get_allocation_size(buffer_handle_t handle, uint64_t* usage);
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int get_share_fd(buffer_handle_t handle, int* share_fd);
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int get_name(buffer_handle_t handle, std::string &name);
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int get_buffer_id(buffer_handle_t handle, uint64_t* buffer_id);
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using android::status_t;
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status_t importBuffer(buffer_handle_t rawHandle, buffer_handle_t* outHandle);
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status_t freeBuffer(buffer_handle_t handle);
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status_t lock(buffer_handle_t bufferHandle,
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uint64_t usage,
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int x,
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int y,
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int w,
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int h,
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void** outData);
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void unlock(buffer_handle_t bufferHandle);
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/* ---------------------------------------------------------------------------------------------------------
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* Inline Functions Implementation
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* ---------------------------------------------------------------------------------------------------------
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*/
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}
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