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/*###############################################################################
#
# Copyright (c) 2020 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#include "BatchUtilities.h"
/********************************************************************************
* AllocateBatchBuffer
********************************************************************************/
NvCV_Status AllocateBatchBuffer(NvCVImage *im, unsigned batchSize, unsigned width, unsigned height, NvCVImage_PixelFormat format,
NvCVImage_ComponentType type, unsigned layout, unsigned memSpace, unsigned alignment) {
return NvCVImage_Alloc(im, width, height * batchSize, format, type, layout, memSpace, alignment);
}
/********************************************************************************
* NthImage
********************************************************************************/
NvCVImage* NthImage(unsigned n, unsigned height, NvCVImage* full, NvCVImage* view) {
unsigned y = height;
if (NVCV_PLANAR & full->planar) { // if not any of the chunky formats
if (NVCV_PLANAR == full->planar) y *= full->numComponents;
else if (NVCV_YUV444 == full->pixelFormat) y *= 3;
else if (NVCV_YUV422 == full->pixelFormat) y *= 2;
else if (NVCV_YUV420 == full->pixelFormat) y = y * 3 / 2;
else y = 0;
}
NvCVImage_InitView(view, full, 0, y * n, full->width, height);
return view;
}
/********************************************************************************
* ComputeImageBytes
********************************************************************************/
int ComputeImageBytes(const NvCVImage* im) {
int imageBytes = im->pitch * (int)im->height; // Correct for all chunky formats
if (NVCV_PLANAR & im->planar) { // if not any of the chunky formats
if (NVCV_PLANAR == im->planar) imageBytes *= (int)im->numComponents;
else if (NVCV_YUV422 == im->pixelFormat) imageBytes *= 2;
else if (NVCV_YUV420 == im->pixelFormat) imageBytes = imageBytes * 3 / 2;
else imageBytes = 0;
}
return imageBytes;
}
/********************************************************************************
* TransferToNthImage
********************************************************************************/
NvCV_Status TransferToNthImage(
unsigned n, const NvCVImage* src, NvCVImage* dstBatch, float scale, struct CUstream_st* stream, NvCVImage* tmp) {
NvCVImage nth;
return NvCVImage_Transfer(src, NthImage(n, src->height, dstBatch, &nth), scale, stream, tmp);
}
/********************************************************************************
* TransferFromNthImage
********************************************************************************/
NvCV_Status TransferFromNthImage(
unsigned n, const NvCVImage* srcBatch, NvCVImage* dst, float scale, struct CUstream_st* stream, NvCVImage* tmp) {
NvCVImage nth;
return NvCVImage_Transfer(NthImage(n, dst->height, const_cast<NvCVImage*>(srcBatch), &nth), dst, scale, stream, tmp);
}
/********************************************************************************
* TransferToBatchImage
* This illustrates the use of the pixel offset method, but the Nth image method could be used instead.
********************************************************************************/
NvCV_Status TransferToBatchImage(
unsigned batchSize, const NvCVImage** srcArray, NvCVImage* dstBatch, float scale, struct CUstream_st* stream, NvCVImage* tmp) {
NvCV_Status err = NVCV_SUCCESS;
NvCVImage nth;
(void)NthImage(0, (**srcArray).height, dstBatch, &nth);
int nextDst = ComputeImageBytes(&nth);
for (; batchSize--; ++srcArray, nth.pixels = (void*)((char*)nth.pixels + nextDst))
if (NVCV_SUCCESS != (err = NvCVImage_Transfer(*srcArray, &nth, scale, stream, tmp)))
break;
return err;
}
/********************************************************************************
* TransferFromBatchImage
* This illustrates the use of the pixel offset method, but the Nth image method could be used instead.
********************************************************************************/
NvCV_Status TransferFromBatchImage(
unsigned batchSize, const NvCVImage* srcBatch, NvCVImage** dstArray, float scale, struct CUstream_st* stream, NvCVImage* tmp) {
NvCV_Status err = NVCV_SUCCESS;
NvCVImage nth;
(void)NthImage(0, (**dstArray).height, const_cast<NvCVImage*>(srcBatch), &nth);
int nextSrc = ComputeImageBytes(&nth);
for (; batchSize--; nth.pixels = (void*)((char*)nth.pixels + nextSrc), ++dstArray)
if (NVCV_SUCCESS != (err = NvCVImage_Transfer(&nth, *dstArray, scale, stream, tmp)))
break;
return err;
}
/********************************************************************************
* TransferBatchImage
********************************************************************************/
NvCV_Status TransferBatchImage(const NvCVImage *srcBatch, NvCVImage *dstBatch,
unsigned imHeight, unsigned batchSize, float scale, struct CUstream_st *stream) {
NvCV_Status err = NVCV_SUCCESS;
NvCVImage tmp;
if ((!(srcBatch->planar & NVCV_PLANAR) && !(dstBatch->planar & NVCV_PLANAR)) // both chunky
|| (srcBatch->planar == NVCV_PLANAR && dstBatch->planar == NVCV_PLANAR && srcBatch->pixelFormat == dstBatch->pixelFormat)
) { // This is a fast transfer
err = NvCVImage_Transfer(srcBatch, dstBatch, scale, stream, &tmp);
}
else { // This is guaranteed to be safe for all transfers
NvCVImage subSrc, subDst;
int nextSrc, nextDst, n;
NvCVImage_InitView(&subSrc, const_cast<NvCVImage*>(srcBatch), 0, 0, srcBatch->width, imHeight);
NvCVImage_InitView(&subDst, dstBatch, 0, 0, dstBatch->width, imHeight);
nextSrc = ComputeImageBytes(&subSrc);
nextDst = ComputeImageBytes(&subDst);
for (n = batchSize; n--; subSrc.pixels = (char*)subSrc.pixels + nextSrc,
subDst.pixels = (char*)subDst.pixels + nextDst)
if (NVCV_SUCCESS != (err = NvCVImage_Transfer(&subSrc, &subDst, scale, stream, &tmp)))
break;
}
return err;
}