void save_image(
cell cells[GRID_W][GRID_H],
Vec2 particles[PARTICLES_NUM],
std::string filename) {
int w = GRID_W;
int h = GRID_H;
rgb8_image_t img(w, h);
rgb8_image_t::view_t v = view(img);
for(int i = 0; i < w; i++){
for(int j = 0; j < h; j++){
cell * cell = &cells[i][j];
Vec2 * cu = &cell->u;
v(i,j) = rgb8_pixel_t(cu->x * 255 + 128, cu->y * 255 + 128, 0);
//v(i,j) = rgb8_pixel_t(0, 0, 0);
}
}
for(int i = 0; i < PARTICLES_NUM; i++){
int posi = particles[i].x;
int posj = particles[i].y;
if(posi < 0 || posi >= w || posj < 0 || posj >= h){
continue;
}
v(posi, posj) = rgb8_pixel_t(255, 255, 255);
}
png_write_view(filename, const_view(img));
}
void ImageGetter::resizePNGImage(std::string const& imageURL, int sixex, int sizey)
{
boost::gil::rgb8_image_t img;
png_read_image(imageURL,img);
boost::gil::rgb8_image_t targetImageSize(sixex,sizey);
resize_view(const_view(img), view(targetImageSize), boost::gil::bilinear_sampler());
png_write_view(imageURL,const_view(targetImageSize));
}
///////////////////////////////////////////////////////////////////////////////////
/// 指定窓の画面をキャプチャして指定ファイルにPNG形式で保存する
void CaptureScreen(CWnd *pWnd, const std::wstring &szFilePath) {
CRect rectClient;
pWnd->GetClientRect( &rectClient );
CClientDC dc(pWnd);
CDC dc2;
dc2.CreateCompatibleDC( &dc );
CBitmap bitmap;
bitmap.CreateCompatibleBitmap(&dc, rectClient.Width(), rectClient.Height() );
auto pOldBitmap = dc2.SelectObject( &bitmap );
dc2.BitBlt(0,0, rectClient.Width(), rectClient.Height(), &dc, 0, 0, SRCCOPY );
int nWidthAdjust = rectClient.Width();
if ( nWidthAdjust % 4 ) { nWidthAdjust += 4 - nWidthAdjust % 4;}
std::vector<BYTE> bitdata( nWidthAdjust * rectClient.Height() * 3 );
dc2.SelectObject( pOldBitmap );
BITMAPINFO bitmapinfo;
ZeroMemory(&bitmapinfo, sizeof(BITMAPINFO) );
bitmapinfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bitmapinfo.bmiHeader.biWidth = nWidthAdjust;
bitmapinfo.bmiHeader.biHeight = rectClient.Height();
bitmapinfo.bmiHeader.biPlanes = 1;
bitmapinfo.bmiHeader.biBitCount = 24;
bitmapinfo.bmiHeader.biCompression = BI_RGB;
GetDIBits( dc2, bitmap, 0, rectClient.Height(), bitdata.data(), &bitmapinfo, DIB_RGB_COLORS );
boost::gil::rgb8_image_t img( nWidthAdjust, rectClient.Height() );
copy_pixels(boost::gil::interleaved_view(nWidthAdjust, rectClient.Height(), (const boost::gil::rgb8_pixel_t*)bitdata.data(), nWidthAdjust*3), view(img));
png_write_view(CStringA(szFilePath.c_str()), boost::gil::flipped_up_down_view( const_view(img) ) );
}
inline void png_write_view(const std::string& filename,const View& view) {
png_write_view(filename.c_str(),view);
}