I have a problem with the D3DX11CreateShaderResourceViewFromMemory helper function.
I read some texture from a file or ZIP and pass the raw bytes and length to the helper function, however only part of the texture is uploaded (as confirmed by PIX). I tried fiddling with the length manually but to no avail. Here is the code that loads the texture from file:
struct FileDataLoader { void Load() { std::ifstream file(mFileName); if (file) { file.seekg(0,std::ios::end); std::streampos length = file.tellg(); file.seekg(0,std::ios::beg); mBuffer.resize(length); file.read(&mBuffer[0],length); file.close(); } } void Decompress(void*& data, std::size_t& numBytes) { data = &mBuffer[0]; numBytes = mBuffer.size(); } std::wstring mFileName; std::vector<char> mBuffer; }; FileDataLoader fdl; fdl.mFileName = L"Content\\Textures\\Smoke.dds"; fdl.Load(); void* bytes; std::size_t size; fdl.Decompress(bytes, size); DXCall(D3DX11CreateShaderResourceViewFromMemory(device, bytes, size, NULL, NULL, &particleTexture, NULL)); That is only a sample code that I am using to debug this problem, and I narrowed it down to the file loading and the D3DX helper function. Now if I do this instead:
DXCall(D3DX11CreateShaderResourceViewFromFileW(device, L"Content\\Textures\\Smoke.dds", NULL, NULL, &particleTexture, NULL)); it works perfectly fine.
Any idea on why it would not upload the texture entirely ?
1 Answer
When opening the file, you need to specify that the file is binary:
std::ifstream file( fileName, std::ios::in | std::ios::binary ); Without the std::ios::binary flag you're reading in plain text by default, which is not what D3DX11CreateShaderResourceViewFromMemory expects.
