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 #include <android/hardware/automotive/evs/1.0/types.h> 24 #include <android/hardware/automotive/evs/1.1/types.h> 25 26 using BufferDesc_1_0 = ::android::hardware::automotive::evs::V1_0::BufferDesc; 27 using BufferDesc_1_1 = ::android::hardware::automotive::evs::V1_1::BufferDesc; 28 29 30 // Given an image buffer in NV21 format (HAL_PIXEL_FORMAT_YCRCB_420_SP), output 32bit RGBx values. 31 // The NV21 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 interleaved 32 // U/V array. It assumes an even width and height for the overall image, and a horizontal 33 // stride that is an even multiple of 16 bytes for both the Y and UV arrays. 34 void copyNV21toRGB32(unsigned width, unsigned height, 35 uint8_t* src, 36 uint32_t* dst, unsigned dstStridePixels); 37 38 39 // Given an image buffer in YV12 format (HAL_PIXEL_FORMAT_YV12), output 32bit RGBx values. 40 // The YV12 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 U array, followed 41 // by another 1/2 x 1/2 V array. It assumes an even width and height for the overall image, 42 // and a horizontal stride that is an even multiple of 16 bytes for each of the Y, U, 43 // and V arrays. 44 void copyYV12toRGB32(unsigned width, unsigned height, 45 uint8_t* src, 46 uint32_t* dst, unsigned dstStridePixels); 47 48 49 // Given an image buffer in YUYV format (HAL_PIXEL_FORMAT_YCBCR_422_I), output 32bit RGBx values. 50 // The NV21 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 interleaved 51 // U/V array. It assumes an even width and height for the overall image, and a horizontal 52 // stride that is an even multiple of 16 bytes for both the Y and UV arrays. 53 void copyYUYVtoRGB32(unsigned width, unsigned height, 54 uint8_t* src, unsigned srcStrideBytes, 55 uint32_t* dst, unsigned dstStrideBytes); 56 57 58 // Given an simple rectangular image buffer with an integer number of bytes per pixel, 59 // copy the pixel values into a new rectangular buffer (potentially with a different stride). 60 // This is typically used to copy RGBx data into an RGBx output buffer. 61 void copyMatchedInterleavedFormats(unsigned width, unsigned height, 62 void* src, unsigned srcStridePixels, 63 void* dst, unsigned dstStridePixels, 64 unsigned pixelSize); 65 66 // Fill BufferDesc v1.1 with a given BufferDesc v1.0 data. 67 BufferDesc_1_1 convertBufferDesc(const BufferDesc_1_0& src); 68 69 #endif // EVS_VTS_FORMATCONVERT_H 70