| Array2dVec3UInt8* Impala::Application::Videolympics::RawImageDataset::GetImage | ( | int | nr | ) | [inline] |
Definition at line 52 of file RawImageDataset.h.
References ILOG_ERROR, ILOG_WARN, mFileOffset, mIOBuffer, NrImages(), Impala::Util::IOBuffer::Read(), Impala::Core::Array::ReadImageFromMemory(), and Impala::Util::IOBuffer::SetPosition().
Referenced by Impala::Application::Videolympics::VidolviWindow::GetNewImages().
00053 { 00054 if (nr < 0 || nr > NrImages()) 00055 { 00056 ILOG_WARN("request for image nr " << nr << ", only " << NrImages() << " in dataset."); 00057 return 0; 00058 } 00059 00060 char buf[200]; 00061 int width; 00062 int height; 00063 mIOBuffer->SetPosition(mFileOffset[nr]); 00064 mIOBuffer->Read(buf, 20); 00065 sscanf(buf, "%d %d ", &width, &height); 00066 size_t blockSize = width*height; 00067 char* data = new char[blockSize]; 00068 size_t nrRead = mIOBuffer->Read(data, blockSize); 00069 if (nrRead != blockSize) 00070 { 00071 ILOG_ERROR("GetImage: read " << nrRead 00072 << " bytes instead of " << blockSize); 00073 } 00074 00075 Array2dVec3UInt8* image = 0; 00076 00077 ReadImageFromMemory(image, data, blockSize); 00078 delete data; 00079 00080 return image; 00081 }
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