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 <stdint.h> 21 22 #include <queue> 23 24 // Given an image buffer in NV21 format (HAL_PIXEL_FORMAT_YCRCB_420_SP), output 32bit RGBx values. 25 // The NV21 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 interleaved 26 // U/V array. It assumes an even width and height for the overall image, and a horizontal 27 // stride that is an even multiple of 16 bytes for both the Y and UV arrays. 28 void copyNV21toRGB32(unsigned width, unsigned height, uint8_t* src, uint32_t* dst, 29 unsigned dstStridePixels); 30 31 // Given an image buffer in YV12 format (HAL_PIXEL_FORMAT_YV12), output 32bit RGBx values. 32 // The YV12 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 U array, followed 33 // by another 1/2 x 1/2 V array. It assumes an even width and height for the overall image, 34 // and a horizontal stride that is an even multiple of 16 bytes for each of the Y, U, 35 // and V arrays. 36 void copyYV12toRGB32(unsigned width, unsigned height, uint8_t* src, uint32_t* dst, 37 unsigned dstStridePixels); 38 39 // Given an image buffer in YUYV format (HAL_PIXEL_FORMAT_YCBCR_422_I), output 32bit RGBx values. 40 // The NV21 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 interleaved 41 // U/V array. It assumes an even width and height for the overall image, and a horizontal 42 // stride that is an even multiple of 16 bytes for both the Y and UV arrays. 43 void copyYUYVtoRGB32(unsigned width, unsigned height, uint8_t* src, unsigned srcStrideBytes, 44 uint32_t* dst, unsigned dstStrideBytes); 45 46 // Given an simple rectangular image buffer with an integer number of bytes per pixel, 47 // copy the pixel values into a new rectangular buffer (potentially with a different stride). 48 // This is typically used to copy RGBx data into an RGBx output buffer. 49 void copyMatchedInterleavedFormats(unsigned width, unsigned height, void* src, 50 unsigned srcStridePixels, void* dst, unsigned dstStridePixels, 51 unsigned pixelSize); 52 53 #endif // EVS_VTS_FORMATCONVERT_H 54