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
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.
28void copyNV21toRGB32(unsigned width, unsigned height,
29                     uint8_t* src,
30                     uint32_t* dst, unsigned dstStridePixels);
31
32
33// Given an image buffer in YV12 format (HAL_PIXEL_FORMAT_YV12), output 32bit RGBx values.
34// The YV12 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 U array, followed
35// by another 1/2 x 1/2 V array.  It assumes an even width and height for the overall image,
36// and a horizontal stride that is an even multiple of 16 bytes for each of the Y, U,
37// and V arrays.
38void copyYV12toRGB32(unsigned width, unsigned height,
39                     uint8_t* src,
40                     uint32_t* dst, unsigned dstStridePixels);
41
42
43// Given an image buffer in YUYV format (HAL_PIXEL_FORMAT_YCBCR_422_I), output 32bit RGBx values.
44// The NV21 format provides a Y array of 8bit values, followed by a 1/2 x 1/2 interleaved
45// U/V array.  It assumes an even width and height for the overall image, and a horizontal
46// stride that is an even multiple of 16 bytes for both the Y and UV arrays.
47void copyYUYVtoRGB32(unsigned width, unsigned height,
48                     uint8_t* src, unsigned srcStrideBytes,
49                     uint32_t* dst, unsigned dstStrideBytes);
50
51
52// Given an simple rectangular image buffer with an integer number of bytes per pixel,
53// copy the pixel values into a new rectangular buffer (potentially with a different stride).
54// This is typically used to copy RGBx data into an RGBx output buffer.
55void copyMatchedInterleavedFormats(unsigned width, unsigned height,
56                                   void* src, unsigned srcStridePixels,
57                                   void* dst, unsigned dstStridePixels,
58                                   unsigned pixelSize);
59
60#endif // EVS_VTS_FORMATCONVERT_H
61