mirror of
https://github.com/NVIDIA/cuda-samples.git
synced 2024-11-24 23:39:14 +08:00
456 lines
14 KiB
C++
456 lines
14 KiB
C++
/* Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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**************************************************************************
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* \file BmpUtil.cpp
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* \brief Contains basic image operations implementation.
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*
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* This file contains implementation of basic bitmap loading, saving,
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* conversions to different representations and memory management routines.
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*/
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#include "Common.h"
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#include "BmpUtil.h"
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#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
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#pragma warning(disable : 4996) // disable deprecated warning
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#endif
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/**
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**************************************************************************
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* The routine clamps the input value to integer byte range [0, 255]
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*
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* \param x [IN] - Input value
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*
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* \return Pointer to the created plane
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*/
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int clamp_0_255(int x) { return (x < 0) ? 0 : ((x > 255) ? 255 : x); }
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/**
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**************************************************************************
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* Float round to nearest value
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*
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* \param num [IN] - Float value to round
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*
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* \return The closest to the input float integer value
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*/
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float round_f(float num) {
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float NumAbs = fabs(num);
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int NumAbsI = (int)(NumAbs + 0.5f);
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float sign = num > 0 ? 1.0f : -1.0f;
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return sign * NumAbsI;
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}
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/**
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**************************************************************************
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* Memory allocator, returns aligned format frame with 8bpp pixels.
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*
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* \param width [IN] - Width of image buffer to be allocated
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* \param height [IN] - Height of image buffer to be allocated
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* \param pStepBytes [OUT] - Step between two sequential rows
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*
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* \return Pointer to the created plane
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*/
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byte *MallocPlaneByte(int width, int height, int *pStepBytes) {
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byte *ptr;
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*pStepBytes = ((int)ceil(width / 16.0f)) * 16;
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//#ifdef __ALLOW_ALIGNED_MEMORY_MANAGEMENT
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// ptr = (byte *)_aligned_malloc(*pStepBytes * height, 16);
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//#else
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ptr = (byte *)malloc(*pStepBytes * height);
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//#endif
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return ptr;
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}
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/**
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**************************************************************************
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* Memory allocator, returns aligned format frame with 16bpp float pixels.
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*
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* \param width [IN] - Width of image buffer to be allocated
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* \param height [IN] - Height of image buffer to be allocated
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* \param pStepBytes [OUT] - Step between two sequential rows
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*
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* \return Pointer to the created plane
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*/
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short *MallocPlaneShort(int width, int height, int *pStepBytes) {
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short *ptr;
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*pStepBytes = ((int)ceil((width * sizeof(short)) / 16.0f)) * 16;
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//#ifdef __ALLOW_ALIGNED_MEMORY_MANAGEMENT
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// ptr = (float *)_aligned_malloc(*pStepBytes * height, 16);
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//#else
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ptr = (short *)malloc(*pStepBytes * height);
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//#endif
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*pStepBytes = *pStepBytes / sizeof(short);
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return ptr;
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}
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/**
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**************************************************************************
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* Memory allocator, returns aligned format frame with 32bpp float pixels.
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*
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* \param width [IN] - Width of image buffer to be allocated
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* \param height [IN] - Height of image buffer to be allocated
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* \param pStepBytes [OUT] - Step between two sequential rows
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*
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* \return Pointer to the created plane
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*/
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float *MallocPlaneFloat(int width, int height, int *pStepBytes) {
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float *ptr;
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*pStepBytes = ((int)ceil((width * sizeof(float)) / 16.0f)) * 16;
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//#ifdef __ALLOW_ALIGNED_MEMORY_MANAGEMENT
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// ptr = (float *)_aligned_malloc(*pStepBytes * height, 16);
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//#else
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ptr = (float *)malloc(*pStepBytes * height);
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//#endif
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*pStepBytes = *pStepBytes / sizeof(float);
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return ptr;
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}
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/**
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**************************************************************************
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* Copies byte plane to float plane
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*
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* \param ImgSrc [IN] - Source byte plane
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* \param StrideB [IN] - Source plane stride
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* \param ImgDst [OUT] - Destination float plane
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* \param StrideF [IN] - Destination plane stride
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* \param Size [IN] - Size of area to copy
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*
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* \return None
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*/
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void CopyByte2Float(byte *ImgSrc, int StrideB, float *ImgDst, int StrideF,
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ROI Size) {
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for (int i = 0; i < Size.height; i++) {
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for (int j = 0; j < Size.width; j++) {
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ImgDst[i * StrideF + j] = (float)ImgSrc[i * StrideB + j];
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}
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}
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}
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/**
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**************************************************************************
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* Copies float plane to byte plane (with clamp)
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*
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* \param ImgSrc [IN] - Source float plane
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* \param StrideF [IN] - Source plane stride
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* \param ImgDst [OUT] - Destination byte plane
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* \param StrideB [IN] - Destination plane stride
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* \param Size [IN] - Size of area to copy
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*
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* \return None
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*/
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void CopyFloat2Byte(float *ImgSrc, int StrideF, byte *ImgDst, int StrideB,
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ROI Size) {
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for (int i = 0; i < Size.height; i++) {
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for (int j = 0; j < Size.width; j++) {
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ImgDst[i * StrideB + j] =
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(byte)clamp_0_255((int)(round_f(ImgSrc[i * StrideF + j])));
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}
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}
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}
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/**
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**************************************************************************
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* Memory deallocator, deletes aligned format frame.
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*
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* \param ptr [IN] - Pointer to the plane
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*
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* \return None
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*/
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void FreePlane(void *ptr) {
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//#ifdef __ALLOW_ALIGNED_MEMORY_MANAGEMENT
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// if (ptr)
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// {
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// _aligned_free(ptr);
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// }
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//#else
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if (ptr) {
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free(ptr);
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}
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//#endif
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}
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/**
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**************************************************************************
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* Performs addition of given value to each pixel in the plane
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*
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* \param Value [IN] - Value to add
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* \param ImgSrcDst [IN/OUT] - Source float plane
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* \param StrideF [IN] - Source plane stride
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* \param Size [IN] - Size of area to copy
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*
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* \return None
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*/
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void AddFloatPlane(float Value, float *ImgSrcDst, int StrideF, ROI Size) {
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for (int i = 0; i < Size.height; i++) {
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for (int j = 0; j < Size.width; j++) {
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ImgSrcDst[i * StrideF + j] += Value;
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}
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}
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}
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/**
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**************************************************************************
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* Performs multiplication of given value with each pixel in the plane
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*
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* \param Value [IN] - Value for multiplication
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* \param ImgSrcDst [IN/OUT] - Source float plane
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* \param StrideF [IN] - Source plane stride
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* \param Size [IN] - Size of area to copy
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*
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* \return None
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*/
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void MulFloatPlane(float Value, float *ImgSrcDst, int StrideF, ROI Size) {
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for (int i = 0; i < Size.height; i++) {
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for (int j = 0; j < Size.width; j++) {
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ImgSrcDst[i * StrideF + j] *= Value;
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}
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}
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}
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/**
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**************************************************************************
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* This function performs acquisition of image dimensions
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*
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* \param FileName [IN] - Image name to load
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* \param Width [OUT] - Image width from file header
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* \param Height [OUT] - Image height from file header
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*
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* \return Status code
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*/
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int PreLoadBmp(char *FileName, int *Width, int *Height) {
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BMPFileHeader FileHeader;
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BMPInfoHeader InfoHeader;
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FILE *fh;
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if (!(fh = fopen(FileName, "rb"))) {
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return 1; // invalid filename
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}
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fread(&FileHeader, sizeof(BMPFileHeader), 1, fh);
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if (FileHeader._bm_signature != 0x4D42) {
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return 2; // invalid file format
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}
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fread(&InfoHeader, sizeof(BMPInfoHeader), 1, fh);
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if (InfoHeader._bm_color_depth != 24) {
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return 3; // invalid color depth
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}
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if (InfoHeader._bm_compressed) {
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return 4; // invalid compression property
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}
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*Width = InfoHeader._bm_image_width;
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*Height = InfoHeader._bm_image_height;
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fclose(fh);
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return 0;
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}
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/**
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**************************************************************************
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* This function performs loading of bitmap luma
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*
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* \param FileName [IN] - Image name to load
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* \param Stride [IN] - Image stride
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* \param ImSize [IN] - Image size
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* \param Img [OUT] - Prepared buffer
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*
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* \return None
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*/
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void LoadBmpAsGray(char *FileName, int Stride, ROI ImSize, byte *Img) {
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BMPFileHeader FileHeader;
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BMPInfoHeader InfoHeader;
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FILE *fh;
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fh = fopen(FileName, "rb");
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fread(&FileHeader, sizeof(BMPFileHeader), 1, fh);
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fread(&InfoHeader, sizeof(BMPInfoHeader), 1, fh);
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for (int i = ImSize.height - 1; i >= 0; i--) {
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for (int j = 0; j < ImSize.width; j++) {
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int r = 0, g = 0, b = 0;
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fread(&b, 1, 1, fh);
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fread(&g, 1, 1, fh);
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fread(&r, 1, 1, fh);
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int val = (313524 * r + 615514 * g + 119537 * b + 524288) >> 20;
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Img[i * Stride + j] = (byte)clamp_0_255(val);
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}
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}
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fclose(fh);
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return;
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}
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/**
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**************************************************************************
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* This function performs dumping of bitmap luma on HDD
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*
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* \param FileName [OUT] - Image name to dump to
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* \param Img [IN] - Image luma to dump
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* \param Stride [IN] - Image stride
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* \param ImSize [IN] - Image size
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*
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* \return None
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*/
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void DumpBmpAsGray(char *FileName, byte *Img, int Stride, ROI ImSize) {
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FILE *fp = NULL;
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fp = fopen(FileName, "wb");
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if (fp == NULL) {
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return;
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}
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BMPFileHeader FileHeader;
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BMPInfoHeader InfoHeader;
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// init headers
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FileHeader._bm_signature = 0x4D42;
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FileHeader._bm_file_size = 54 + 3 * ImSize.width * ImSize.height;
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FileHeader._bm_reserved = 0;
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FileHeader._bm_bitmap_data = 0x36;
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InfoHeader._bm_bitmap_size = 0;
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InfoHeader._bm_color_depth = 24;
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InfoHeader._bm_compressed = 0;
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InfoHeader._bm_hor_resolution = 0;
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InfoHeader._bm_image_height = ImSize.height;
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InfoHeader._bm_image_width = ImSize.width;
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InfoHeader._bm_info_header_size = 40;
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InfoHeader._bm_num_colors_used = 0;
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InfoHeader._bm_num_important_colors = 0;
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InfoHeader._bm_num_of_planes = 1;
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InfoHeader._bm_ver_resolution = 0;
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fwrite(&FileHeader, sizeof(BMPFileHeader), 1, fp);
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fwrite(&InfoHeader, sizeof(BMPInfoHeader), 1, fp);
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for (int i = ImSize.height - 1; i >= 0; i--) {
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for (int j = 0; j < ImSize.width; j++) {
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fwrite(&(Img[i * Stride + j]), 1, 1, fp);
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fwrite(&(Img[i * Stride + j]), 1, 1, fp);
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fwrite(&(Img[i * Stride + j]), 1, 1, fp);
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}
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}
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fclose(fp);
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}
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/**
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**************************************************************************
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* This function performs dumping of 8x8 block from float plane
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*
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* \param PlaneF [IN] - Image plane
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* \param StrideF [IN] - Image stride
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* \param Fname [OUT] - File name to dump to
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*
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* \return None
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*/
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void DumpBlockF(float *PlaneF, int StrideF, char *Fname) {
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FILE *fp = fopen(Fname, "wb");
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for (int i = 0; i < 8; i++) {
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for (int j = 0; j < 8; j++) {
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fprintf(fp, "%.*f ", 14, PlaneF[i * StrideF + j]);
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}
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fprintf(fp, "\n");
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}
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fclose(fp);
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}
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/**
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**************************************************************************
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* This function performs dumping of 8x8 block from byte plane
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*
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* \param Plane [IN] - Image plane
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* \param Stride [IN] - Image stride
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* \param Fname [OUT] - File name to dump to
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*
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* \return None
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*/
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void DumpBlock(byte *Plane, int Stride, char *Fname) {
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FILE *fp = fopen(Fname, "wb");
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for (int i = 0; i < 8; i++) {
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for (int j = 0; j < 8; j++) {
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fprintf(fp, "%.3d ", Plane[i * Stride + j]);
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}
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fprintf(fp, "\n");
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}
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fclose(fp);
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}
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/**
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**************************************************************************
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* This function performs evaluation of Mean Square Error between two images
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*
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* \param Img1 [IN] - Image 1
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* \param Img2 [IN] - Image 2
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* \param Stride [IN] - Image stride
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* \param Size [IN] - Image size
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*
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* \return Mean Square Error between images
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*/
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float CalculateMSE(byte *Img1, byte *Img2, int Stride, ROI Size) {
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uint32 Acc = 0;
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for (int i = 0; i < Size.height; i++) {
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for (int j = 0; j < Size.width; j++) {
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int TmpDiff = Img1[i * Stride + j] - Img2[i * Stride + j];
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TmpDiff *= TmpDiff;
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Acc += TmpDiff;
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}
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}
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return ((float)Acc) / (Size.height * Size.width);
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}
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/**
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**************************************************************************
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* This function performs evaluation of Peak Signal to Noise Ratio between
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* two images
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*
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* \param Img1 [IN] - Image 1
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* \param Img2 [IN] - Image 2
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* \param Stride [IN] - Image stride
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* \param Size [IN] - Image size
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*
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* \return Peak Signal to Noise Ratio between images
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*/
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float CalculatePSNR(byte *Img1, byte *Img2, int Stride, ROI Size) {
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float MSE = CalculateMSE(Img1, Img2, Stride, Size);
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return 10 * log10(255 * 255 / MSE);
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}
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