1033 lines
33 KiB
C++
1033 lines
33 KiB
C++
//-------------------------------------------------------------------------------------
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// DirectXTexResize.cpp
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//
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// DirectX Texture Library - Image resizing operations
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248926
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//-------------------------------------------------------------------------------------
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#include "directxtexp.h"
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#include "filters.h"
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namespace DirectX
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{
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//-------------------------------------------------------------------------------------
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// WIC related helper functions
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//-------------------------------------------------------------------------------------
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extern HRESULT _ResizeSeparateColorAndAlpha( _In_ IWICImagingFactory* pWIC, _In_ IWICBitmap* original,
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_In_ size_t newWidth, _In_ size_t newHeight, _In_ DWORD filter, _Inout_ const Image* img );
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//--- Do image resize using WIC ---
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static HRESULT _PerformResizeUsingWIC( _In_ const Image& srcImage, _In_ DWORD filter,
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_In_ const WICPixelFormatGUID& pfGUID, _In_ const Image& destImage )
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{
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if ( !srcImage.pixels || !destImage.pixels )
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return E_POINTER;
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assert( srcImage.format == destImage.format );
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IWICImagingFactory* pWIC = _GetWIC();
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if ( !pWIC )
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return E_NOINTERFACE;
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ScopedObject<IWICComponentInfo> componentInfo;
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HRESULT hr = pWIC->CreateComponentInfo( pfGUID, &componentInfo );
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if ( FAILED(hr) )
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return hr;
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ScopedObject<IWICPixelFormatInfo2> pixelFormatInfo;
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hr = componentInfo->QueryInterface( __uuidof(IWICPixelFormatInfo2), (void**)&pixelFormatInfo );
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if ( FAILED(hr) )
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return hr;
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BOOL supportsTransparency = FALSE;
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hr = pixelFormatInfo->SupportsTransparency( &supportsTransparency );
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if ( FAILED(hr) )
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return hr;
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ScopedObject<IWICBitmap> source;
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hr = pWIC->CreateBitmapFromMemory( static_cast<UINT>( srcImage.width ), static_cast<UINT>( srcImage.height ), pfGUID,
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static_cast<UINT>( srcImage.rowPitch ), static_cast<UINT>( srcImage.slicePitch ),
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srcImage.pixels, &source );
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if ( FAILED(hr) )
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return hr;
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if ( (filter & TEX_FILTER_SEPARATE_ALPHA) && supportsTransparency )
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{
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hr = _ResizeSeparateColorAndAlpha( pWIC, source.Get(), destImage.width, destImage.height, filter, &destImage );
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if ( FAILED(hr) )
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return hr;
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}
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else
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{
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ScopedObject<IWICBitmapScaler> scaler;
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hr = pWIC->CreateBitmapScaler( &scaler );
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if ( FAILED(hr) )
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return hr;
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hr = scaler->Initialize( source.Get(), static_cast<UINT>( destImage.width ), static_cast<UINT>( destImage.height ), _GetWICInterp( filter ) );
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if ( FAILED(hr) )
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return hr;
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WICPixelFormatGUID pfScaler;
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hr = scaler->GetPixelFormat( &pfScaler );
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if ( FAILED(hr) )
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return hr;
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if ( memcmp( &pfScaler, &pfGUID, sizeof(WICPixelFormatGUID) ) == 0 )
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{
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hr = scaler->CopyPixels( 0, static_cast<UINT>( destImage.rowPitch ), static_cast<UINT>( destImage.slicePitch ), destImage.pixels );
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if ( FAILED(hr) )
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return hr;
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}
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else
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{
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// The WIC bitmap scaler is free to return a different pixel format than the source image, so here we
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// convert it back
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ScopedObject<IWICFormatConverter> FC;
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hr = pWIC->CreateFormatConverter( &FC );
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if ( FAILED(hr) )
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return hr;
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hr = FC->Initialize( scaler.Get(), pfGUID, _GetWICDither( filter ), 0, 0, WICBitmapPaletteTypeCustom );
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if ( FAILED(hr) )
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return hr;
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hr = FC->CopyPixels( 0, static_cast<UINT>( destImage.rowPitch ), static_cast<UINT>( destImage.slicePitch ), destImage.pixels );
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if ( FAILED(hr) )
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return hr;
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}
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}
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return S_OK;
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}
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//--- Do conversion, resize using WIC, conversion cycle ---
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static HRESULT _PerformResizeViaF32( _In_ const Image& srcImage, _In_ DWORD filter, _In_ const Image& destImage )
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{
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if ( !srcImage.pixels || !destImage.pixels )
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return E_POINTER;
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assert( srcImage.format != DXGI_FORMAT_R32G32B32A32_FLOAT );
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assert( srcImage.format == destImage.format );
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ScratchImage temp;
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HRESULT hr = _ConvertToR32G32B32A32( srcImage, temp );
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if ( FAILED(hr) )
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return hr;
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const Image *tsrc = temp.GetImage( 0, 0, 0 );
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if ( !tsrc )
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return E_POINTER;
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ScratchImage rtemp;
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hr = rtemp.Initialize2D( DXGI_FORMAT_R32G32B32A32_FLOAT, destImage.width, destImage.height, 1, 1 );
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if ( FAILED(hr) )
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return hr;
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const Image *tdest = rtemp.GetImage( 0, 0, 0 );
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if ( !tdest )
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return E_POINTER;
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hr = _PerformResizeUsingWIC( *tsrc, filter, GUID_WICPixelFormat128bppRGBAFloat, *tdest );
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if ( FAILED(hr) )
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return hr;
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temp.Release();
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hr = _ConvertFromR32G32B32A32( *tdest, destImage );
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if ( FAILED(hr) )
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return hr;
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return S_OK;
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}
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//--- determine when to use WIC vs. non-WIC paths ---
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static bool _UseWICFiltering( _In_ DXGI_FORMAT format, _In_ DWORD filter )
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{
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if ( filter & TEX_FILTER_FORCE_NON_WIC )
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{
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// Explicit flag indicates use of non-WIC code paths
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return false;
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}
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if ( filter & TEX_FILTER_FORCE_WIC )
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{
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// Explicit flag to use WIC code paths, skips all the case checks below
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return true;
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}
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if ( IsSRGB(format) || (filter & TEX_FILTER_SRGB) )
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{
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// Use non-WIC code paths for sRGB correct filtering
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return false;
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}
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static_assert( TEX_FILTER_POINT == 0x100000, "TEX_FILTER_ flag values don't match TEX_FILTER_MASK" );
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switch ( filter & TEX_FILTER_MASK )
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{
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case TEX_FILTER_LINEAR:
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if ( filter & TEX_FILTER_WRAP )
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{
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// WIC only supports 'clamp' semantics (MIRROR is equivalent to clamp for linear)
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return false;
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}
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if ( BitsPerColor(format) > 8 )
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{
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// Avoid the WIC bitmap scaler when doing Linear filtering of XR/HDR formats
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return false;
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}
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break;
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case TEX_FILTER_CUBIC:
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if ( filter & ( TEX_FILTER_WRAP | TEX_FILTER_MIRROR ) )
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{
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// WIC only supports 'clamp' semantics
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return false;
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}
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if ( BitsPerColor(format) > 8 )
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{
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// Avoid the WIC bitmap scaler when doing Cubic filtering of XR/HDR formats
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return false;
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}
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break;
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case TEX_FILTER_TRIANGLE:
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// WIC does not implement this filter
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return false;
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}
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return true;
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}
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//-------------------------------------------------------------------------------------
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// Resize custom filters
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//-------------------------------------------------------------------------------------
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//--- Point Filter ---
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static HRESULT _ResizePointFilter( _In_ const Image& srcImage, _In_ const Image& destImage )
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{
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assert( srcImage.pixels && destImage.pixels );
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assert( srcImage.format == destImage.format );
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// Allocate temporary space (2 scanlines)
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ScopedAlignedArrayXMVECTOR scanline( reinterpret_cast<XMVECTOR*>( _aligned_malloc(
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( sizeof(XMVECTOR) * (srcImage.width + destImage.width ) ), 16 ) ) );
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if ( !scanline )
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return E_OUTOFMEMORY;
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XMVECTOR* target = scanline.get();
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XMVECTOR* row = target + destImage.width;
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#ifdef _DEBUG
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memset( row, 0xCD, sizeof(XMVECTOR)*srcImage.width );
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#endif
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const uint8_t* pSrc = srcImage.pixels;
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uint8_t* pDest = destImage.pixels;
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size_t rowPitch = srcImage.rowPitch;
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size_t xinc = ( srcImage.width << 16 ) / destImage.width;
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size_t yinc = ( srcImage.height << 16 ) / destImage.height;
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size_t lasty = size_t(-1);
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size_t sy = 0;
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for( size_t y = 0; y < destImage.height; ++y )
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{
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if ( (lasty ^ sy) >> 16 )
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{
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if ( !_LoadScanline( row, srcImage.width, pSrc + ( rowPitch * (sy >> 16) ), rowPitch, srcImage.format ) )
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return E_FAIL;
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lasty = sy;
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}
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size_t sx = 0;
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for( size_t x = 0; x < destImage.width; ++x )
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{
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target[ x ] = row[ sx >> 16 ];
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sx += xinc;
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}
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if ( !_StoreScanline( pDest, destImage.rowPitch, destImage.format, target, destImage.width ) )
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return E_FAIL;
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pDest += destImage.rowPitch;
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sy += yinc;
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}
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return S_OK;
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}
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//--- Box Filter ---
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static HRESULT _ResizeBoxFilter( _In_ const Image& srcImage, _In_ DWORD filter, _In_ const Image& destImage )
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{
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assert( srcImage.pixels && destImage.pixels );
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assert( srcImage.format == destImage.format );
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if ( ( (srcImage.width << 1) != destImage.width ) || ( (srcImage.height << 1) != destImage.height ) )
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return E_FAIL;
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// Allocate temporary space (3 scanlines)
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ScopedAlignedArrayXMVECTOR scanline( reinterpret_cast<XMVECTOR*>( _aligned_malloc(
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( sizeof(XMVECTOR) * ( srcImage.width*2 + destImage.width ) ), 16 ) ) );
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if ( !scanline )
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return E_OUTOFMEMORY;
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XMVECTOR* target = scanline.get();
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XMVECTOR* urow0 = target + destImage.width;
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XMVECTOR* urow1 = urow0 + srcImage.width;
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#ifdef _DEBUG
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memset( urow0, 0xCD, sizeof(XMVECTOR)*srcImage.width );
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memset( urow1, 0xDD, sizeof(XMVECTOR)*srcImage.width );
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#endif
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const XMVECTOR* urow2 = urow0 + 1;
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const XMVECTOR* urow3 = urow1 + 1;
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const uint8_t* pSrc = srcImage.pixels;
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uint8_t* pDest = destImage.pixels;
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size_t rowPitch = srcImage.rowPitch;
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for( size_t y = 0; y < destImage.height; ++y )
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{
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if ( !_LoadScanlineLinear( urow0, srcImage.width, pSrc, rowPitch, srcImage.format, filter ) )
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return E_FAIL;
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pSrc += rowPitch;
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if ( urow0 != urow1 )
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{
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if ( !_LoadScanlineLinear( urow1, srcImage.width, pSrc, rowPitch, srcImage.format, filter ) )
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return E_FAIL;
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pSrc += rowPitch;
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}
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for( size_t x = 0; x < destImage.width; ++x )
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{
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size_t x2 = x << 1;
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AVERAGE4( target[ x ], urow0[ x2 ], urow1[ x2 ], urow2[ x2 ], urow3[ x2 ] );
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}
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if ( !_StoreScanlineLinear( pDest, destImage.rowPitch, destImage.format, target, destImage.width, filter ) )
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return E_FAIL;
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pDest += destImage.rowPitch;
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}
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return S_OK;
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}
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//--- Linear Filter ---
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static HRESULT _ResizeLinearFilter( _In_ const Image& srcImage, _In_ DWORD filter, _In_ const Image& destImage )
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{
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assert( srcImage.pixels && destImage.pixels );
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assert( srcImage.format == destImage.format );
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// Allocate temporary space (3 scanlines, plus X and Y filters)
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ScopedAlignedArrayXMVECTOR scanline( reinterpret_cast<XMVECTOR*>( _aligned_malloc(
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( sizeof(XMVECTOR) * ( srcImage.width*2 + destImage.width ) ), 16 ) ) );
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if ( !scanline )
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return E_OUTOFMEMORY;
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std::unique_ptr<LinearFilter[]> lf( new (std::nothrow) LinearFilter[ destImage.width + destImage.height ] );
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if ( !lf )
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return E_OUTOFMEMORY;
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LinearFilter* lfX = lf.get();
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LinearFilter* lfY = lf.get() + destImage.width;
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_CreateLinearFilter( srcImage.width, destImage.width, (filter & TEX_FILTER_WRAP_U) != 0, lfX );
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_CreateLinearFilter( srcImage.height, destImage.height, (filter & TEX_FILTER_WRAP_V) != 0, lfY );
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XMVECTOR* target = scanline.get();
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XMVECTOR* row0 = target + destImage.width;
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XMVECTOR* row1 = row0 + srcImage.width;
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#ifdef _DEBUG
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memset( row0, 0xCD, sizeof(XMVECTOR)*srcImage.width );
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memset( row1, 0xDD, sizeof(XMVECTOR)*srcImage.width );
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#endif
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const uint8_t* pSrc = srcImage.pixels;
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uint8_t* pDest = destImage.pixels;
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size_t rowPitch = srcImage.rowPitch;
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size_t u0 = size_t(-1);
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size_t u1 = size_t(-1);
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for( size_t y = 0; y < destImage.height; ++y )
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{
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auto& toY = lfY[ y ];
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if ( toY.u0 != u0 )
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{
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if ( toY.u0 != u1 )
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{
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u0 = toY.u0;
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if ( !_LoadScanlineLinear( row0, srcImage.width, pSrc + (rowPitch * u0), rowPitch, srcImage.format, filter ) )
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return E_FAIL;
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}
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else
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{
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u0 = u1;
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u1 = size_t(-1);
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std::swap( row0, row1 );
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}
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}
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if ( toY.u1 != u1 )
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{
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u1 = toY.u1;
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if ( !_LoadScanlineLinear( row1, srcImage.width, pSrc + (rowPitch * u1), rowPitch, srcImage.format, filter ) )
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return E_FAIL;
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}
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for( size_t x = 0; x < destImage.width; ++x )
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{
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auto& toX = lfX[ x ];
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BILINEAR_INTERPOLATE( target[x], toX, toY, row0, row1 );
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}
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if ( !_StoreScanlineLinear( pDest, destImage.rowPitch, destImage.format, target, destImage.width, filter ) )
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return E_FAIL;
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pDest += destImage.rowPitch;
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}
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return S_OK;
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}
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//--- Cubic Filter ---
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static HRESULT _ResizeCubicFilter( _In_ const Image& srcImage, _In_ DWORD filter, _In_ const Image& destImage )
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{
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assert( srcImage.pixels && destImage.pixels );
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assert( srcImage.format == destImage.format );
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// Allocate temporary space (5 scanlines, plus X and Y filters)
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ScopedAlignedArrayXMVECTOR scanline( reinterpret_cast<XMVECTOR*>( _aligned_malloc(
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( sizeof(XMVECTOR) * ( srcImage.width*4 + destImage.width ) ), 16 ) ) );
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if ( !scanline )
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return E_OUTOFMEMORY;
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std::unique_ptr<CubicFilter[]> cf( new (std::nothrow) CubicFilter[ destImage.width + destImage.height ] );
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if ( !cf )
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return E_OUTOFMEMORY;
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CubicFilter* cfX = cf.get();
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CubicFilter* cfY = cf.get() + destImage.width;
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_CreateCubicFilter( srcImage.width, destImage.width, (filter & TEX_FILTER_WRAP_U) != 0, (filter & TEX_FILTER_MIRROR_U) != 0, cfX );
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_CreateCubicFilter( srcImage.height, destImage.height, (filter & TEX_FILTER_WRAP_V) != 0, (filter & TEX_FILTER_MIRROR_V) != 0, cfY );
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XMVECTOR* target = scanline.get();
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XMVECTOR* row0 = target + destImage.width;
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XMVECTOR* row1 = row0 + srcImage.width;
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XMVECTOR* row2 = row0 + srcImage.width*2;
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XMVECTOR* row3 = row0 + srcImage.width*3;
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#ifdef _DEBUG
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memset( row0, 0xCD, sizeof(XMVECTOR)*srcImage.width );
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memset( row1, 0xDD, sizeof(XMVECTOR)*srcImage.width );
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memset( row2, 0xED, sizeof(XMVECTOR)*srcImage.width );
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memset( row3, 0xFD, sizeof(XMVECTOR)*srcImage.width );
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#endif
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const uint8_t* pSrc = srcImage.pixels;
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uint8_t* pDest = destImage.pixels;
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size_t rowPitch = srcImage.rowPitch;
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size_t u0 = size_t(-1);
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size_t u1 = size_t(-1);
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size_t u2 = size_t(-1);
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size_t u3 = size_t(-1);
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for( size_t y = 0; y < destImage.height; ++y )
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{
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auto& toY = cfY[ y ];
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// Scanline 1
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if ( toY.u0 != u0 )
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{
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if ( toY.u0 != u1 && toY.u0 != u2 && toY.u0 != u3 )
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{
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u0 = toY.u0;
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if ( !_LoadScanlineLinear( row0, srcImage.width, pSrc + (rowPitch * u0), rowPitch, srcImage.format, filter ) )
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return E_FAIL;
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}
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else if ( toY.u0 == u1 )
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{
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u0 = u1;
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u1 = size_t(-1);
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std::swap( row0, row1 );
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}
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else if ( toY.u0 == u2 )
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{
|
|
u0 = u2;
|
|
u2 = size_t(-1);
|
|
|
|
std::swap( row0, row2 );
|
|
}
|
|
else if ( toY.u0 == u3 )
|
|
{
|
|
u0 = u3;
|
|
u3 = size_t(-1);
|
|
|
|
std::swap( row0, row3 );
|
|
}
|
|
}
|
|
|
|
// Scanline 2
|
|
if ( toY.u1 != u1 )
|
|
{
|
|
if ( toY.u1 != u2 && toY.u1 != u3 )
|
|
{
|
|
u1 = toY.u1;
|
|
|
|
if ( !_LoadScanlineLinear( row1, srcImage.width, pSrc + (rowPitch * u1), rowPitch, srcImage.format, filter ) )
|
|
return E_FAIL;
|
|
}
|
|
else if ( toY.u1 == u2 )
|
|
{
|
|
u1 = u2;
|
|
u2 = size_t(-1);
|
|
|
|
std::swap( row1, row2 );
|
|
}
|
|
else if ( toY.u1 == u3 )
|
|
{
|
|
u1 = u3;
|
|
u3 = size_t(-1);
|
|
|
|
std::swap( row1, row3 );
|
|
}
|
|
}
|
|
|
|
// Scanline 3
|
|
if ( toY.u2 != u2 )
|
|
{
|
|
if ( toY.u2 != u3 )
|
|
{
|
|
u2 = toY.u2;
|
|
|
|
if ( !_LoadScanlineLinear( row2, srcImage.width, pSrc + (rowPitch * u2), rowPitch, srcImage.format, filter ) )
|
|
return E_FAIL;
|
|
}
|
|
else
|
|
{
|
|
u2 = u3;
|
|
u3 = size_t(-1);
|
|
|
|
std::swap( row2, row3 );
|
|
}
|
|
}
|
|
|
|
// Scanline 4
|
|
if ( toY.u3 != u3 )
|
|
{
|
|
u3 = toY.u3;
|
|
|
|
if ( !_LoadScanlineLinear( row3, srcImage.width, pSrc + (rowPitch * u3), rowPitch, srcImage.format, filter ) )
|
|
return E_FAIL;
|
|
}
|
|
|
|
for( size_t x = 0; x < destImage.width; ++x )
|
|
{
|
|
auto& toX = cfX[ x ];
|
|
|
|
XMVECTOR C0, C1, C2, C3;
|
|
|
|
CUBIC_INTERPOLATE( C0, toX.x, row0[ toX.u0 ], row0[ toX.u1 ], row0[ toX.u2 ], row0[ toX.u3 ] );
|
|
CUBIC_INTERPOLATE( C1, toX.x, row1[ toX.u0 ], row1[ toX.u1 ], row1[ toX.u2 ], row1[ toX.u3 ] );
|
|
CUBIC_INTERPOLATE( C2, toX.x, row2[ toX.u0 ], row2[ toX.u1 ], row2[ toX.u2 ], row2[ toX.u3 ] );
|
|
CUBIC_INTERPOLATE( C3, toX.x, row3[ toX.u0 ], row3[ toX.u1 ], row3[ toX.u2 ], row3[ toX.u3 ] );
|
|
|
|
CUBIC_INTERPOLATE( target[x], toY.x, C0, C1, C2, C3 );
|
|
}
|
|
|
|
if ( !_StoreScanlineLinear( pDest, destImage.rowPitch, destImage.format, target, destImage.width, filter ) )
|
|
return E_FAIL;
|
|
pDest += destImage.rowPitch;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
//--- Triangle Filter ---
|
|
static HRESULT _ResizeTriangleFilter( _In_ const Image& srcImage, _In_ DWORD filter, _In_ const Image& destImage )
|
|
{
|
|
assert( srcImage.pixels && destImage.pixels );
|
|
assert( srcImage.format == destImage.format );
|
|
|
|
using namespace TriangleFilter;
|
|
|
|
// Allocate initial temporary space (1 scanline, accumulation rows, plus X and Y filters)
|
|
ScopedAlignedArrayXMVECTOR scanline( reinterpret_cast<XMVECTOR*>( _aligned_malloc( sizeof(XMVECTOR) * srcImage.width, 16 ) ) );
|
|
if ( !scanline )
|
|
return E_OUTOFMEMORY;
|
|
|
|
std::unique_ptr<TriangleRow[]> rowActive( new (std::nothrow) TriangleRow[ destImage.height ] );
|
|
if ( !rowActive )
|
|
return E_OUTOFMEMORY;
|
|
|
|
TriangleRow * rowFree = nullptr;
|
|
|
|
std::unique_ptr<Filter> tfX;
|
|
HRESULT hr = _Create( srcImage.width, destImage.width, (filter & TEX_FILTER_WRAP_U) != 0, tfX );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
std::unique_ptr<Filter> tfY;
|
|
hr = _Create( srcImage.height, destImage.height, (filter & TEX_FILTER_WRAP_V) != 0, tfY );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
XMVECTOR* row = scanline.get();
|
|
|
|
#ifdef _DEBUG
|
|
memset( row, 0xCD, sizeof(XMVECTOR)*srcImage.width );
|
|
#endif
|
|
|
|
auto xFromEnd = reinterpret_cast<const FilterFrom*>( reinterpret_cast<const uint8_t*>( tfX.get() ) + tfX->sizeInBytes );
|
|
auto yFromEnd = reinterpret_cast<const FilterFrom*>( reinterpret_cast<const uint8_t*>( tfY.get() ) + tfY->sizeInBytes );
|
|
|
|
// Count times rows get written
|
|
for( FilterFrom* yFrom = tfY->from; yFrom < yFromEnd; )
|
|
{
|
|
for ( size_t j = 0; j < yFrom->count; ++j )
|
|
{
|
|
size_t v = yFrom->to[ j ].u;
|
|
assert( v < destImage.height );
|
|
++rowActive.get()[ v ].remaining;
|
|
}
|
|
|
|
yFrom = reinterpret_cast<FilterFrom*>( reinterpret_cast<uint8_t*>( yFrom ) + yFrom->sizeInBytes );
|
|
}
|
|
|
|
// Filter image
|
|
const uint8_t* pSrc = srcImage.pixels;
|
|
size_t rowPitch = srcImage.rowPitch;
|
|
const uint8_t* pEndSrc = pSrc + rowPitch * srcImage.height;
|
|
|
|
uint8_t* pDest = destImage.pixels;
|
|
|
|
for( FilterFrom* yFrom = tfY->from; yFrom < yFromEnd; )
|
|
{
|
|
// Create accumulation rows as needed
|
|
for ( size_t j = 0; j < yFrom->count; ++j )
|
|
{
|
|
size_t v = yFrom->to[ j ].u;
|
|
assert( v < destImage.height );
|
|
TriangleRow* rowAcc = &rowActive.get()[ v ];
|
|
|
|
if ( !rowAcc->scanline )
|
|
{
|
|
if ( rowFree )
|
|
{
|
|
// Steal and reuse scanline from 'free row' list
|
|
assert( rowFree->scanline != 0 );
|
|
rowAcc->scanline.reset( rowFree->scanline.release() );
|
|
rowFree = rowFree->next;
|
|
}
|
|
else
|
|
{
|
|
rowAcc->scanline.reset( reinterpret_cast<XMVECTOR*>( _aligned_malloc( sizeof(XMVECTOR) * destImage.width, 16 ) ) );
|
|
if ( !rowAcc->scanline )
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
memset( rowAcc->scanline.get(), 0, sizeof(XMVECTOR) * destImage.width );
|
|
}
|
|
}
|
|
|
|
// Load source scanline
|
|
if ( (pSrc + rowPitch) > pEndSrc )
|
|
return E_FAIL;
|
|
|
|
if ( !_LoadScanlineLinear( row, srcImage.width, pSrc, rowPitch, srcImage.format, filter ) )
|
|
return E_FAIL;
|
|
|
|
pSrc += rowPitch;
|
|
|
|
// Process row
|
|
size_t x = 0;
|
|
for( FilterFrom* xFrom = tfX->from; xFrom < xFromEnd; ++x )
|
|
{
|
|
for ( size_t j = 0; j < yFrom->count; ++j )
|
|
{
|
|
size_t v = yFrom->to[ j ].u;
|
|
assert( v < destImage.height );
|
|
float yweight = yFrom->to[ j ].weight;
|
|
|
|
XMVECTOR* accPtr = rowActive[ v ].scanline.get();
|
|
if ( !accPtr )
|
|
return E_POINTER;
|
|
|
|
for ( size_t k = 0; k < xFrom->count; ++k )
|
|
{
|
|
size_t u = xFrom->to[ k ].u;
|
|
assert( u < destImage.width );
|
|
|
|
XMVECTOR weight = XMVectorReplicate( yweight * xFrom->to[ k ].weight );
|
|
|
|
assert( x < srcImage.width );
|
|
accPtr[ u ] = XMVectorMultiplyAdd( row[ x ], weight, accPtr[ u ] );
|
|
}
|
|
}
|
|
|
|
xFrom = reinterpret_cast<FilterFrom*>( reinterpret_cast<uint8_t*>( xFrom ) + xFrom->sizeInBytes );
|
|
}
|
|
|
|
// Write completed accumulation rows
|
|
for ( size_t j = 0; j < yFrom->count; ++j )
|
|
{
|
|
size_t v = yFrom->to[ j ].u;
|
|
assert( v < destImage.height );
|
|
TriangleRow* rowAcc = &rowActive.get()[ v ];
|
|
|
|
assert( rowAcc->remaining > 0 );
|
|
--rowAcc->remaining;
|
|
|
|
if ( !rowAcc->remaining )
|
|
{
|
|
XMVECTOR* pAccSrc = rowAcc->scanline.get();
|
|
if ( !pAccSrc )
|
|
return E_POINTER;
|
|
|
|
switch( destImage.format )
|
|
{
|
|
case DXGI_FORMAT_R10G10B10A2_UNORM:
|
|
case DXGI_FORMAT_R10G10B10A2_UINT:
|
|
{
|
|
// Need to slightly bias results for floating-point error accumulation which can
|
|
// be visible with harshly quantized values
|
|
static const XMVECTORF32 Bias = { 0.f, 0.f, 0.f, 0.1f };
|
|
|
|
XMVECTOR* ptr = pAccSrc;
|
|
for( size_t i=0; i < destImage.width; ++i, ++ptr )
|
|
{
|
|
*ptr = XMVectorAdd( *ptr, Bias );
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
// This performs any required clamping
|
|
if ( !_StoreScanlineLinear( pDest + (destImage.rowPitch * v), destImage.rowPitch, destImage.format, pAccSrc, destImage.width, filter ) )
|
|
return E_FAIL;
|
|
|
|
// Put row on freelist to reuse it's allocated scanline
|
|
rowAcc->next = rowFree;
|
|
rowFree = rowAcc;
|
|
}
|
|
}
|
|
|
|
yFrom = reinterpret_cast<FilterFrom*>( reinterpret_cast<uint8_t*>( yFrom ) + yFrom->sizeInBytes );
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
//--- Custom filter resize ---
|
|
static HRESULT _PerformResizeUsingCustomFilters( _In_ const Image& srcImage, _In_ DWORD filter, _In_ const Image& destImage )
|
|
{
|
|
if ( !srcImage.pixels || !destImage.pixels )
|
|
return E_POINTER;
|
|
|
|
static_assert( TEX_FILTER_POINT == 0x100000, "TEX_FILTER_ flag values don't match TEX_FILTER_MASK" );
|
|
|
|
DWORD filter_select = ( filter & TEX_FILTER_MASK );
|
|
if ( !filter_select )
|
|
{
|
|
// Default filter choice
|
|
filter_select = ( ( (srcImage.width << 1) == destImage.width ) && ( (srcImage.height << 1) == destImage.height ) )
|
|
? TEX_FILTER_BOX : TEX_FILTER_LINEAR;
|
|
}
|
|
|
|
switch( filter_select )
|
|
{
|
|
case TEX_FILTER_POINT:
|
|
return _ResizePointFilter( srcImage, destImage );
|
|
|
|
case TEX_FILTER_BOX:
|
|
return _ResizeBoxFilter( srcImage, filter, destImage );
|
|
|
|
case TEX_FILTER_LINEAR:
|
|
return _ResizeLinearFilter( srcImage, filter, destImage );
|
|
|
|
case TEX_FILTER_CUBIC:
|
|
return _ResizeCubicFilter( srcImage, filter, destImage );
|
|
|
|
case TEX_FILTER_TRIANGLE:
|
|
return _ResizeTriangleFilter( srcImage, filter, destImage );
|
|
|
|
default:
|
|
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
|
|
}
|
|
}
|
|
|
|
|
|
//=====================================================================================
|
|
// Entry-points
|
|
//=====================================================================================
|
|
|
|
//-------------------------------------------------------------------------------------
|
|
// Resize image
|
|
//-------------------------------------------------------------------------------------
|
|
_Use_decl_annotations_
|
|
HRESULT Resize( const Image& srcImage, size_t width, size_t height, DWORD filter, ScratchImage& image )
|
|
{
|
|
if ( width == 0 || height == 0 )
|
|
return E_INVALIDARG;
|
|
|
|
#ifdef _M_X64
|
|
if ( (srcImage.width > 0xFFFFFFFF) || (srcImage.height > 0xFFFFFFFF) )
|
|
return E_INVALIDARG;
|
|
|
|
if ( (width > 0xFFFFFFFF) || (height > 0xFFFFFFFF) )
|
|
return E_INVALIDARG;
|
|
#endif
|
|
|
|
if ( !srcImage.pixels )
|
|
return E_POINTER;
|
|
|
|
if ( IsCompressed( srcImage.format ) )
|
|
{
|
|
// We don't support resizing compressed images
|
|
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
|
|
}
|
|
|
|
HRESULT hr = image.Initialize2D( srcImage.format, width, height, 1, 1 );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
const Image *rimage = image.GetImage( 0, 0, 0 );
|
|
if ( !rimage )
|
|
return E_POINTER;
|
|
|
|
if ( _UseWICFiltering( srcImage.format, filter ) )
|
|
{
|
|
WICPixelFormatGUID pfGUID;
|
|
if ( _DXGIToWIC( srcImage.format, pfGUID, true ) )
|
|
{
|
|
// Case 1: Source format is supported by Windows Imaging Component
|
|
hr = _PerformResizeUsingWIC( srcImage, filter, pfGUID, *rimage );
|
|
}
|
|
else
|
|
{
|
|
// Case 2: Source format is not supported by WIC, so we have to convert, resize, and convert back
|
|
hr = _PerformResizeViaF32( srcImage, filter, *rimage );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = _PerformResizeUsingCustomFilters( srcImage, filter, *rimage );
|
|
}
|
|
|
|
if ( FAILED(hr) )
|
|
{
|
|
image.Release();
|
|
return hr;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------
|
|
// Resize image (complex)
|
|
//-------------------------------------------------------------------------------------
|
|
_Use_decl_annotations_
|
|
HRESULT Resize( const Image* srcImages, size_t nimages, const TexMetadata& metadata,
|
|
size_t width, size_t height, DWORD filter, ScratchImage& result )
|
|
{
|
|
if ( !srcImages || !nimages || width == 0 || height == 0 )
|
|
return E_INVALIDARG;
|
|
|
|
#ifdef _M_X64
|
|
if ( (width > 0xFFFFFFFF) || (height > 0xFFFFFFFF) )
|
|
return E_INVALIDARG;
|
|
#endif
|
|
|
|
TexMetadata mdata2 = metadata;
|
|
mdata2.width = width;
|
|
mdata2.height = height;
|
|
mdata2.mipLevels = 1;
|
|
HRESULT hr = result.Initialize( mdata2 );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
bool usewic = _UseWICFiltering( metadata.format, filter );
|
|
|
|
WICPixelFormatGUID pfGUID = {0};
|
|
bool wicpf = ( usewic ) ? _DXGIToWIC( metadata.format, pfGUID, true ) : false;
|
|
|
|
switch ( metadata.dimension )
|
|
{
|
|
case TEX_DIMENSION_TEXTURE1D:
|
|
case TEX_DIMENSION_TEXTURE2D:
|
|
assert( metadata.depth == 1 );
|
|
|
|
for( size_t item = 0; item < metadata.arraySize; ++item )
|
|
{
|
|
size_t srcIndex = metadata.ComputeIndex( 0, item, 0 );
|
|
if ( srcIndex >= nimages )
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
const Image* srcimg = &srcImages[ srcIndex ];
|
|
const Image* destimg = result.GetImage( 0, item, 0 );
|
|
if ( !srcimg || !destimg )
|
|
{
|
|
result.Release();
|
|
return E_POINTER;
|
|
}
|
|
|
|
if ( srcimg->format != metadata.format )
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
#ifdef _M_X64
|
|
if ( (srcimg->width > 0xFFFFFFFF) || (srcimg->height > 0xFFFFFFFF) )
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
#endif
|
|
|
|
if ( usewic )
|
|
{
|
|
if ( wicpf )
|
|
{
|
|
// Case 1: Source format is supported by Windows Imaging Component
|
|
hr = _PerformResizeUsingWIC( *srcimg, filter, pfGUID, *destimg );
|
|
}
|
|
else
|
|
{
|
|
// Case 2: Source format is not supported by WIC, so we have to convert, resize, and convert back
|
|
hr = _PerformResizeViaF32( *srcimg, filter, *destimg );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Case 3: not using WIC resizing
|
|
hr = _PerformResizeUsingCustomFilters( *srcimg, filter, *destimg );
|
|
}
|
|
|
|
if ( FAILED(hr) )
|
|
{
|
|
result.Release();
|
|
return hr;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TEX_DIMENSION_TEXTURE3D:
|
|
assert( metadata.arraySize == 1 );
|
|
|
|
for( size_t slice = 0; slice < metadata.depth; ++slice )
|
|
{
|
|
size_t srcIndex = metadata.ComputeIndex( 0, 0, slice );
|
|
if ( srcIndex >= nimages )
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
const Image* srcimg = &srcImages[ srcIndex ];
|
|
const Image* destimg = result.GetImage( 0, 0, slice );
|
|
if ( !srcimg || !destimg )
|
|
{
|
|
result.Release();
|
|
return E_POINTER;
|
|
}
|
|
|
|
if ( srcimg->format != metadata.format )
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
#ifdef _M_X64
|
|
if ( (srcimg->width > 0xFFFFFFFF) || (srcimg->height > 0xFFFFFFFF) )
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
#endif
|
|
|
|
if ( usewic )
|
|
{
|
|
if ( wicpf )
|
|
{
|
|
// Case 1: Source format is supported by Windows Imaging Component
|
|
hr = _PerformResizeUsingWIC( *srcimg, filter, pfGUID, *destimg );
|
|
}
|
|
else
|
|
{
|
|
// Case 2: Source format is not supported by WIC, so we have to convert, resize, and convert back
|
|
hr = _PerformResizeViaF32( *srcimg, filter, *destimg );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Case 3: not using WIC resizing
|
|
hr = _PerformResizeUsingCustomFilters( *srcimg, filter, *destimg );
|
|
}
|
|
|
|
if ( FAILED(hr) )
|
|
{
|
|
result.Release();
|
|
return hr;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
}; // namespace
|