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/**
* Copyright (C) 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 IMS_MEDIA_IMAGE_ROTATE
#define IMS_MEDIA_IMAGE_ROTATE
#include <string.h>
class ImsMediaImageRotate
{
public:
/**
* @brief Rotates YUVImage_420_Planar Image by 90 degrees and flips.
* Supports input row stride equal to width.
*
* Source Image Destination Image
* + - - - - + + - - - - +
* | 1 2 3 | | 9 6 3 |
* | 4 5 6 | | 8 5 2 |
* | 7 8 9 | | 7 4 1 |
* + - - - - + + - - - - +
*
* @param pOutBuffer Pointer to output buffer with size nDstWidth*nDstHeight*1.5.
* @param pbSrc Source buffer with size nDstWidth*nDstHeight*1.5.
* @param nSrcWidth Source Image width.
* @param nSrcHeight Source Image height.
*/
static void YUV420_Planar_Rotate90_Flip(
uint8_t* pOutBuffer, uint8_t* pbSrc, uint16_t nSrcWidth, uint16_t nSrcHeight);
/**
* @brief Rotates YUVImage_420_888 Image by 90 degrees.
* Supports input row stride equal to width and adds padding when outputStride is not same
* as output image width.
*
* Source Image Destination Image
* + - - - - + + - - - - +
* | 1 2 3 | | 7 4 1 |
* | 4 5 6 | | 8 5 2 |
* | 7 8 9 | | 9 6 3 |
* + - - - - + + - - - - +
*
* @param pOutBuffer Pointer to output buffer with size outputStride*nDstHeight*1.5.
* @param nOutBufSize size of output buffer.
* @param outputStride Stride of the output image >= nDstWidth.
* @param pYPlane Y-Plane data of size nDstWidth*nDstHeight.
* @param pUVPlane UV-Plane data of size (nDstWidth*nDstHeight)/2.
* @param nSrcWidth Source Image width.
* @param nSrcHeight Source Image height.
*
* @return -1 on error and 0 on success.
*/
static int YUV420_SP_Rotate90(uint8_t* pOutBuffer, size_t nOutBufSize, uint16_t outputStride,
uint8_t* pYPlane, uint8_t* pUVPlane, uint16_t nSrcWidth, uint16_t nSrcHeight);
/**
* @brief Rotates YUVImage_420_888 Image by 90 degrees and flip.
* Supports input row stride equal to width.
*
* Source Image Destination Image
* + - - - - + + - - - - +
* | 1 2 3 | | 9 6 3 |
* | 4 5 6 | | 8 5 2 |
* | 7 8 9 | | 7 4 1 |
* + - - - - + + - - - - +
*
* @param pOutBuffer Pointer to output buffer with size nDstWidth*nDstHeight*1.5.
* @param pYPlane Y-Plane data of size nDstWidth*nDstHeight.
* @param pUVPlane UV-Plane data of size (nDstWidth*nDstHeight)/2.
* @param nSrcWidth Source Image width.
* @param nSrcHeight Source Image height.
*/
static void YUV420_SP_Rotate90_Flip(uint8_t* pOutBuffer, uint8_t* pYPlane, uint8_t* pUVPlane,
uint16_t nSrcWidth, uint16_t nSrcHeight);
/**
* @brief Rotates YUVImage_420_888 Image by 270 degrees.
* Supports input row stride equal to width and adds padding when outputStride is not same
* as output image width.
*
* Source Image Destination Image
* + - - - - + + - - - - +
* | 1 2 3 | | 3 6 9 |
* | 4 5 6 | | 2 5 8 |
* | 7 8 9 | | 1 4 7 |
* + - - - - + + - - - - +
*
* @param pOutBuffer Pointer to output buffer with size nDstWidth*nDstHeight*1.5.
* @param nOutBufSize size of output buffer.
* @param outputStride Stride of the output image >= nDstWidth.
* @param pYPlane Y-Plane data of size nDstWidth*nDstHeight.
* @param pUVPlane UV-Plane data of size (nDstWidth*nDstHeight)/2.
* @param nSrcWidth Source Image width.
* @param nSrcHeight Source Image height.
*
* @return -1 on error and 0 on success.
*/
static int YUV420_SP_Rotate270(uint8_t* pOutBuffer, size_t nOutBufSize, uint16_t outputStride,
uint8_t* pYPlane, uint8_t* pUVPlane, uint16_t nSrcWidth, uint16_t nSrcHeight);
};
#endif // IMS_MEDIA_IMAGE_ROTATE
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