1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef EVS_VTS_FORMATCONVERT_H 18 #define EVS_VTS_FORMATCONVERT_H 19 20 #include <queue> 21 #include <stdint.h> 22 23 namespace android { 24 namespace automotive { 25 namespace evs { 26 namespace support { 27 28 // Given an image buffer in NV21 format (HAL_PIXEL_FORMAT_YCRCB_420_SP), output 32bit RGBx values. 29 // The NV21 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 interleaved 30 // U/V array. It assumes an even width and height for the overall image, and a horizontal 31 // stride that is an even multiple of 16 bytes for both the Y and UV arrays. 32 void copyNV21toRGB32(unsigned width, unsigned height, 33 uint8_t* src, 34 uint32_t* dst, unsigned dstStridePixels); 35 36 37 // Given an image buffer in YV12 format (HAL_PIXEL_FORMAT_YV12), output 32bit RGBx values. 38 // The YV12 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 U array, followed 39 // by another 1/2 x 1/2 V array. It assumes an even width and height for the overall image, 40 // and a horizontal stride that is an even multiple of 16 bytes for each of the Y, U, 41 // and V arrays. 42 void copyYV12toRGB32(unsigned width, unsigned height, 43 uint8_t* src, 44 uint32_t* dst, unsigned dstStridePixels); 45 46 47 // Given an image buffer in YUYV format (HAL_PIXEL_FORMAT_YCBCR_422_I), output 32bit RGBx values. 48 // The NV21 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 interleaved 49 // U/V array. It assumes an even width and height for the overall image, and a horizontal 50 // stride that is an even multiple of 16 bytes for both the Y and UV arrays. 51 void copyYUYVtoRGB32(unsigned width, unsigned height, 52 uint8_t* src, unsigned srcStrideBytes, 53 uint32_t* dst, unsigned dstStrideBytes); 54 55 56 // Given an simple rectangular image buffer with an integer number of bytes per pixel, 57 // copy the pixel values into a new rectangular buffer (potentially with a different stride). 58 // This is typically used to copy RGBx data into an RGBx output buffer. 59 void copyMatchedInterleavedFormats(unsigned width, unsigned height, 60 void* src, unsigned srcStridePixels, 61 void* dst, unsigned dstStridePixels, 62 unsigned pixelSize); 63 64 } // namespace support 65 } // namespace evs 66 } // namespace automotive 67 } // namespace android 68 69 #endif // EVS_VTS_FORMATCONVERT_H 70