Haoxiang Li | b21a13e | 2019-06-18 13:16:28 -0700 | [diff] [blame] | 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 | |
Haoxiang Li | d2454a5 | 2019-06-18 13:23:12 -0700 | [diff] [blame] | 23 | namespace android { |
| 24 | namespace automotive { |
| 25 | namespace evs { |
| 26 | namespace support { |
Haoxiang Li | b21a13e | 2019-06-18 13:16:28 -0700 | [diff] [blame] | 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 | |
Haoxiang Li | d2454a5 | 2019-06-18 13:23:12 -0700 | [diff] [blame] | 64 | } // namespace support |
| 65 | } // namespace evs |
| 66 | } // namespace automotive |
| 67 | } // namespace android |
| 68 | |
Haoxiang Li | b21a13e | 2019-06-18 13:16:28 -0700 | [diff] [blame] | 69 | #endif // EVS_VTS_FORMATCONVERT_H |