/// <summary>
/// Load an image from a resource into a buffer
/// </summary>
/// <param name="resourceName">name of image resource to load</param>
/// <param name="resourceType">type of resource to load</param>
/// <param name="nOutputWidth">width (in pixels) of scaled output bitmap</param>
/// <param name="nOutputHeight">height (in pixels) of scaled output bitmap</param>
/// <param name="pOutputBuffer">buffer that will hold the loaded image</param>
/// <returns>S_OK on success, otherwise failure code</returns>
HRESULT CColorBasics::LoadResourceImage(PCWSTR resourceName, PCWSTR resourceType, UINT nOutputWidth, UINT nOutputHeight, RGBQUAD* pOutputBuffer)
{
IWICImagingFactory* pIWICFactory = NULL;
IWICBitmapDecoder* pDecoder = NULL;
IWICBitmapFrameDecode* pSource = NULL;
IWICStream* pStream = NULL;
IWICFormatConverter* pConverter = NULL;
IWICBitmapScaler* pScaler = NULL;
HRSRC imageResHandle = NULL;
HGLOBAL imageResDataHandle = NULL;
void *pImageFile = NULL;
DWORD imageFileSize = 0;
HRESULT hrCoInit = CoInitialize(NULL);
HRESULT hr = hrCoInit;
if (SUCCEEDED(hr))
{
hr = CoCreateInstance(CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER, IID_IWICImagingFactory, (LPVOID*)&pIWICFactory);
}
if (SUCCEEDED(hr))
{
// Locate the resource
imageResHandle = FindResourceW(HINST_THISCOMPONENT, resourceName, resourceType);
hr = imageResHandle ? S_OK : E_FAIL;
}
if (SUCCEEDED(hr))
{
// Load the resource
imageResDataHandle = LoadResource(HINST_THISCOMPONENT, imageResHandle);
hr = imageResDataHandle ? S_OK : E_FAIL;
}
if (SUCCEEDED(hr))
{
// Lock it to get a system memory pointer.
pImageFile = LockResource(imageResDataHandle);
hr = pImageFile ? S_OK : E_FAIL;
}
if (SUCCEEDED(hr))
{
// Calculate the size.
imageFileSize = SizeofResource(HINST_THISCOMPONENT, imageResHandle);
hr = imageFileSize ? S_OK : E_FAIL;
}
if (SUCCEEDED(hr))
{
// Create a WIC stream to map onto the memory.
hr = pIWICFactory->CreateStream(&pStream);
}
if (SUCCEEDED(hr))
{
// Initialize the stream with the memory pointer and size.
hr = pStream->InitializeFromMemory(
reinterpret_cast<BYTE*>(pImageFile),
imageFileSize);
}
if (SUCCEEDED(hr))
{
// Create a decoder for the stream.
hr = pIWICFactory->CreateDecoderFromStream(
pStream,
NULL,
WICDecodeMetadataCacheOnLoad,
&pDecoder);
}
if (SUCCEEDED(hr))
{
// Create the initial frame.
hr = pDecoder->GetFrame(0, &pSource);
}
if (SUCCEEDED(hr))
{
// Convert the image format to 32bppPBGRA
// (DXGI_FORMAT_B8G8R8A8_UNORM + D2D1_ALPHA_MODE_PREMULTIPLIED).
hr = pIWICFactory->CreateFormatConverter(&pConverter);
}
if (SUCCEEDED(hr))
{
hr = pIWICFactory->CreateBitmapScaler(&pScaler);
}
if (SUCCEEDED(hr))
{
hr = pScaler->Initialize(
pSource,
nOutputWidth,
nOutputHeight,
WICBitmapInterpolationModeCubic
);
}
if (SUCCEEDED(hr))
{
hr = pConverter->Initialize(
pScaler,
GUID_WICPixelFormat32bppPBGRA,
WICBitmapDitherTypeNone,
NULL,
0.f,
WICBitmapPaletteTypeMedianCut);
}
UINT width = 0;
UINT height = 0;
if (SUCCEEDED(hr))
{
hr = pConverter->GetSize(&width, &height);
}
// make sure the image scaled correctly so the output buffer is big enough
if (SUCCEEDED(hr))
{
if ((width != nOutputWidth) || (height != nOutputHeight))
{
hr = E_FAIL;
}
}
if (SUCCEEDED(hr))
{
hr = pConverter->CopyPixels(NULL, width * sizeof(RGBQUAD), nOutputWidth * nOutputHeight * sizeof(RGBQUAD), reinterpret_cast<BYTE*>(pOutputBuffer));
}
SafeRelease(pScaler);
SafeRelease(pConverter);
SafeRelease(pSource);
SafeRelease(pDecoder);
SafeRelease(pStream);
SafeRelease(pIWICFactory);
if (SUCCEEDED(hrCoInit))
{
CoUninitialize();
}
return hr;
}
_Use_decl_annotations_
HRESULT DirectX::CreateWICTextureFromMemoryEx( ID3D11Device* d3dDevice,
ID3D11DeviceContext* d3dContext,
const uint8_t* wicData,
size_t wicDataSize,
size_t maxsize,
D3D11_USAGE usage,
unsigned int bindFlags,
unsigned int cpuAccessFlags,
unsigned int miscFlags,
bool forceSRGB,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView )
{
if ( texture )
{
*texture = nullptr;
}
if ( textureView )
{
*textureView = nullptr;
}
if (!d3dDevice || !wicData || (!texture && !textureView))
return E_INVALIDARG;
if ( !wicDataSize )
return E_FAIL;
#ifdef _M_AMD64
if ( wicDataSize > 0xFFFFFFFF )
return HRESULT_FROM_WIN32( ERROR_FILE_TOO_LARGE );
#endif
IWICImagingFactory* pWIC = _GetWIC();
if ( !pWIC )
return E_NOINTERFACE;
// Create input stream for memory
IWICStream* stream;
HRESULT hr = pWIC->CreateStream( &stream );
if ( FAILED(hr) )
return hr;
hr = stream->InitializeFromMemory( const_cast<uint8_t*>( wicData ), static_cast<DWORD>( wicDataSize ) );
if ( FAILED(hr) )
return hr;
// Initialize WIC
IWICBitmapDecoder* decoder;
hr = pWIC->CreateDecoderFromStream( stream, 0, WICDecodeMetadataCacheOnDemand, &decoder );
if ( FAILED(hr) )
return hr;
IWICBitmapFrameDecode* frame;
hr = decoder->GetFrame( 0, &frame );
if ( FAILED(hr) )
return hr;
hr = CreateTextureFromWIC( d3dDevice, d3dContext, frame, maxsize,
usage, bindFlags, cpuAccessFlags, miscFlags, forceSRGB,
texture, textureView );
if ( FAILED(hr))
return hr;
if (texture != 0 && *texture != 0)
{
SetDebugObjectName(*texture, "WICTextureLoader");
}
if (textureView != 0 && *textureView != 0)
{
SetDebugObjectName(*textureView, "WICTextureLoader");
}
return hr;
}
bool WICImageLoader::encodeImageData(std::string path, const unsigned char* data, size_t dataLen, WICPixelFormatGUID pixelFormat, int width, int height, GUID containerFormat)
{
assert(data != NULL);
assert(dataLen > 0 && width > 0 && height > 0);
IWICImagingFactory* pFact = getWICFactory();
HRESULT hr = E_FAIL;
IWICStream* pStream = NULL;
if (NULL != pFact) {
hr = pFact->CreateStream(&pStream);
}
if (SUCCEEDED(hr)) {
hr = pStream->InitializeFromFilename(StringUtf8ToWideChar(path).c_str(), GENERIC_WRITE);
}
IWICBitmapEncoder* pEnc = NULL;
if (SUCCEEDED(hr)) {
hr = pFact->CreateEncoder(containerFormat, NULL, &pEnc);
}
if (SUCCEEDED(hr)) {
hr = pEnc->Initialize(pStream, WICBitmapEncoderNoCache);
}
IWICBitmapFrameEncode* pFrame = NULL;
IPropertyBag2* pProp = NULL;
if (SUCCEEDED(hr)) {
hr = pEnc->CreateNewFrame(&pFrame, &pProp);
}
if (SUCCEEDED(hr)) {
hr = pFrame->Initialize(pProp);
}
if (SUCCEEDED(hr)) {
hr = pFrame->SetSize(width, height);
}
if (SUCCEEDED(hr)) {
WICPixelFormatGUID targetFormat = pixelFormat;
hr = pFrame->SetPixelFormat(&targetFormat);
if (targetFormat != pixelFormat) {
hr = E_INVALIDARG;
}
}
if (SUCCEEDED(hr)) {
size_t bpp = getBitsPerPixel(pixelFormat);
size_t stride = (width * bpp + 7) / 8;
hr = pFrame->WritePixels(height, stride, dataLen, (BYTE*)data);
}
if (SUCCEEDED(hr)) {
hr = pFrame->Commit();
}
if (SUCCEEDED(hr)) {
hr = pEnc->Commit();
}
SafeRelease(&pStream);
SafeRelease(&pEnc);
SafeRelease(&pFrame);
SafeRelease(&pProp);
return SUCCEEDED(hr);
}
