File indexing completed on 2026-04-09 07:49:42
0001 #pragma once
0002
0003 #include "sppm.h"
0004
0005 struct SOPTIX_Pixels
0006 {
0007 const SGLM& gm ;
0008 size_t num_pixel ;
0009 size_t num_bytes ;
0010 uchar4* d_pixels ;
0011 uchar4* pixels ;
0012
0013 SOPTIX_Pixels(const SGLM& gm );
0014 void init();
0015
0016 void download();
0017 void save_ppm(const char* path);
0018 };
0019
0020 inline SOPTIX_Pixels::SOPTIX_Pixels(const SGLM& _gm )
0021 :
0022 gm(_gm),
0023 num_pixel(gm.Width_Height()),
0024 num_bytes(num_pixel*sizeof(uchar4)),
0025 d_pixels(nullptr),
0026 pixels(new uchar4[num_pixel])
0027 {
0028 init();
0029 }
0030
0031 inline void SOPTIX_Pixels::init()
0032 {
0033 CUDA_CHECK( cudaMalloc(reinterpret_cast<void**>( &d_pixels ), num_bytes ));
0034 }
0035 inline void SOPTIX_Pixels::download()
0036 {
0037 CUDA_CHECK( cudaMemcpy( pixels, reinterpret_cast<void*>(d_pixels), num_bytes, cudaMemcpyDeviceToHost ));
0038 }
0039 inline void SOPTIX_Pixels::save_ppm(const char* path)
0040 {
0041 bool yflip = true ;
0042 int ncomp = 4 ;
0043 sppm::Write(path, gm.Width(), gm.Height(), ncomp, (unsigned char*)pixels, yflip );
0044 }
0045
