/* * Copyright (C) 2017 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 EVS_VTS_FORMATCONVERT_H #define EVS_VTS_FORMATCONVERT_H #include #include namespace android { namespace automotive { namespace evs { namespace support { // Given an image buffer in NV21 format (HAL_PIXEL_FORMAT_YCRCB_420_SP), output 32bit RGBx values. // The NV21 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 interleaved // U/V array. It assumes an even width and height for the overall image, and a horizontal // stride that is an even multiple of 16 bytes for both the Y and UV arrays. void copyNV21toRGB32(unsigned width, unsigned height, uint8_t* src, uint32_t* dst, unsigned dstStridePixels); // Given an image buffer in YV12 format (HAL_PIXEL_FORMAT_YV12), output 32bit RGBx values. // The YV12 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 U array, followed // by another 1/2 x 1/2 V array. It assumes an even width and height for the overall image, // and a horizontal stride that is an even multiple of 16 bytes for each of the Y, U, // and V arrays. void copyYV12toRGB32(unsigned width, unsigned height, uint8_t* src, uint32_t* dst, unsigned dstStridePixels); // Given an image buffer in YUYV format (HAL_PIXEL_FORMAT_YCBCR_422_I), output 32bit RGBx values. // The NV21 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 interleaved // U/V array. It assumes an even width and height for the overall image, and a horizontal // stride that is an even multiple of 16 bytes for both the Y and UV arrays. void copyYUYVtoRGB32(unsigned width, unsigned height, uint8_t* src, unsigned srcStrideBytes, uint32_t* dst, unsigned dstStrideBytes); // Given an simple rectangular image buffer with an integer number of bytes per pixel, // copy the pixel values into a new rectangular buffer (potentially with a different stride). // This is typically used to copy RGBx data into an RGBx output buffer. void copyMatchedInterleavedFormats(unsigned width, unsigned height, void* src, unsigned srcStridePixels, void* dst, unsigned dstStridePixels, unsigned pixelSize); } // namespace support } // namespace evs } // namespace automotive } // namespace android #endif // EVS_VTS_FORMATCONVERT_H