330 lines
11 KiB
C++
330 lines
11 KiB
C++
//-------------------------------------------------------------------------------------
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// DirectXTexFlipRotate.cpp
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//
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// DirectX Texture Library - Image flip/rotate 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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namespace DirectX
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{
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//-------------------------------------------------------------------------------------
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// Do flip/rotate operation using WIC
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//-------------------------------------------------------------------------------------
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static HRESULT _PerformFlipRotateUsingWIC( _In_ const Image& srcImage, _In_ DWORD flags,
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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<IWICBitmap> source;
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HRESULT 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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ScopedObject<IWICBitmapFlipRotator> FR;
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hr = pWIC->CreateBitmapFlipRotator( &FR );
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if ( FAILED(hr) )
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return hr;
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hr = FR->Initialize( source.Get(), static_cast<WICBitmapTransformOptions>( flags ) );
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if ( FAILED(hr) )
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return hr;
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WICPixelFormatGUID pfFR;
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hr = FR->GetPixelFormat( &pfFR );
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if ( FAILED(hr) )
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return hr;
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if ( memcmp( &pfFR, &pfGUID, sizeof(GUID) ) != 0 )
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{
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// Flip/rotate should return the same format as the source...
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return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
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}
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UINT nwidth, nheight;
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hr = FR->GetSize( &nwidth, &nheight );
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if ( FAILED(hr) )
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return hr;
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if ( destImage.width != nwidth || destImage.height != nheight )
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return E_FAIL;
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hr = FR->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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return S_OK;
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}
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//-------------------------------------------------------------------------------------
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// Do conversion, flip/rotate using WIC, conversion cycle
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//-------------------------------------------------------------------------------------
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static HRESULT _PerformFlipRotateViaF32( _In_ const Image& srcImage, _In_ DWORD flags, _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 = _PerformFlipRotateUsingWIC( *tsrc, flags, 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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//=====================================================================================
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// Entry-points
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//=====================================================================================
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//-------------------------------------------------------------------------------------
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// Flip/rotate image
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT FlipRotate( const Image& srcImage, DWORD flags, ScratchImage& image )
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{
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if ( !srcImage.pixels )
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return E_POINTER;
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if ( !flags )
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return E_INVALIDARG;
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#ifdef _M_X64
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if ( (srcImage.width > 0xFFFFFFFF) || (srcImage.height > 0xFFFFFFFF) )
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return E_INVALIDARG;
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#endif
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if ( IsCompressed( srcImage.format ) )
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{
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// We don't support flip/rotate operations on compressed images
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return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
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}
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static_assert( TEX_FR_ROTATE0 == WICBitmapTransformRotate0, "TEX_FR_ROTATE0 no longer matches WIC" );
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static_assert( TEX_FR_ROTATE90 == WICBitmapTransformRotate90, "TEX_FR_ROTATE90 no longer matches WIC" );
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static_assert( TEX_FR_ROTATE180 == WICBitmapTransformRotate180, "TEX_FR_ROTATE180 no longer matches WIC" );
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static_assert( TEX_FR_ROTATE270 == WICBitmapTransformRotate270, "TEX_FR_ROTATE270 no longer matches WIC" );
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static_assert( TEX_FR_FLIP_HORIZONTAL == WICBitmapTransformFlipHorizontal, "TEX_FR_FLIP_HORIZONTAL no longer matches WIC" );
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static_assert( TEX_FR_FLIP_VERTICAL == WICBitmapTransformFlipVertical, "TEX_FR_FLIP_VERTICAL no longer matches WIC" );
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// Only supports 90, 180, 270, or no rotation flags... not a combination of rotation flags
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switch ( flags & (TEX_FR_ROTATE90|TEX_FR_ROTATE180|TEX_FR_ROTATE270) )
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{
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case 0:
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case TEX_FR_ROTATE90:
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case TEX_FR_ROTATE180:
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case TEX_FR_ROTATE270:
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break;
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default:
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return E_INVALIDARG;
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}
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size_t nwidth = srcImage.width;
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size_t nheight = srcImage.height;
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if (flags & (TEX_FR_ROTATE90|TEX_FR_ROTATE270))
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{
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nwidth = srcImage.height;
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nheight = srcImage.width;
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}
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HRESULT hr = image.Initialize2D( srcImage.format, nwidth, nheight, 1, 1 );
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if ( FAILED(hr) )
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return hr;
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const Image *rimage = image.GetImage( 0, 0, 0 );
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if ( !rimage )
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return E_POINTER;
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WICPixelFormatGUID pfGUID;
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if ( _DXGIToWIC( srcImage.format, pfGUID ) )
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{
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// Case 1: Source format is supported by Windows Imaging Component
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hr = _PerformFlipRotateUsingWIC( srcImage, flags, pfGUID, *rimage );
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}
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else
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{
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// Case 2: Source format is not supported by WIC, so we have to convert, flip/rotate, and convert back
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hr = _PerformFlipRotateViaF32( srcImage, flags, *rimage );
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}
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if ( FAILED(hr) )
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{
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image.Release();
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return hr;
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}
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return S_OK;
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}
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//-------------------------------------------------------------------------------------
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// Flip/rotate image (complex)
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT FlipRotate( const Image* srcImages, size_t nimages, const TexMetadata& metadata,
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DWORD flags, ScratchImage& result )
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{
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if ( !srcImages || !nimages )
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return E_INVALIDARG;
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if ( IsCompressed( metadata.format ) )
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{
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// We don't support flip/rotate operations on compressed images
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return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
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}
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static_assert( TEX_FR_ROTATE0 == WICBitmapTransformRotate0, "TEX_FR_ROTATE0 no longer matches WIC" );
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static_assert( TEX_FR_ROTATE90 == WICBitmapTransformRotate90, "TEX_FR_ROTATE90 no longer matches WIC" );
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static_assert( TEX_FR_ROTATE180 == WICBitmapTransformRotate180, "TEX_FR_ROTATE180 no longer matches WIC" );
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static_assert( TEX_FR_ROTATE270 == WICBitmapTransformRotate270, "TEX_FR_ROTATE270 no longer matches WIC" );
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static_assert( TEX_FR_FLIP_HORIZONTAL == WICBitmapTransformFlipHorizontal, "TEX_FR_FLIP_HORIZONTAL no longer matches WIC" );
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static_assert( TEX_FR_FLIP_VERTICAL == WICBitmapTransformFlipVertical, "TEX_FR_FLIP_VERTICAL no longer matches WIC" );
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// Only supports 90, 180, 270, or no rotation flags... not a combination of rotation flags
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switch ( flags & (TEX_FR_ROTATE90|TEX_FR_ROTATE180|TEX_FR_ROTATE270) )
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{
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case 0:
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case TEX_FR_ROTATE90:
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case TEX_FR_ROTATE180:
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case TEX_FR_ROTATE270:
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break;
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default:
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return E_INVALIDARG;
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}
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TexMetadata mdata2 = metadata;
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bool flipwh = false;
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if (flags & (TEX_FR_ROTATE90|TEX_FR_ROTATE270))
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{
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flipwh = true;
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mdata2.width = metadata.height;
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mdata2.height = metadata.width;
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}
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HRESULT hr = result.Initialize( mdata2 );
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if ( FAILED(hr) )
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return hr;
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if ( nimages != result.GetImageCount() )
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{
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result.Release();
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return E_FAIL;
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}
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const Image* dest = result.GetImages();
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if ( !dest )
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{
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result.Release();
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return E_POINTER;
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}
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WICPixelFormatGUID pfGUID;
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bool wicpf = _DXGIToWIC( metadata.format, pfGUID );
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for( size_t index=0; index < nimages; ++index )
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{
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const Image& src = srcImages[ index ];
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if ( src.format != metadata.format )
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{
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result.Release();
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return E_FAIL;
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}
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#ifdef _M_X64
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if ( (src.width > 0xFFFFFFFF) || (src.height > 0xFFFFFFFF) )
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return E_FAIL;
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#endif
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const Image& dst = dest[ index ];
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assert( dst.format == metadata.format );
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if ( flipwh )
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{
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if ( src.width != dst.height || src.height != dst.width )
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{
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result.Release();
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return E_FAIL;
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}
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}
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else
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{
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if ( src.width != dst.width || src.height != dst.height )
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{
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result.Release();
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return E_FAIL;
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}
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}
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if (wicpf)
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{
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// Case 1: Source format is supported by Windows Imaging Component
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hr = _PerformFlipRotateUsingWIC( src, flags, pfGUID, dst );
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}
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else
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{
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// Case 2: Source format is not supported by WIC, so we have to convert, flip/rotate, and convert back
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hr = _PerformFlipRotateViaF32( src, flags, dst );
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}
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if ( FAILED(hr) )
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{
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result.Release();
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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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}; // namespace
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