688 lines
20 KiB
C++
688 lines
20 KiB
C++
//-------------------------------------------------------------------------------------
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// DirectXTexImage.cpp
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//
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// DirectX Texture Library - Image container
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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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extern bool _CalculateMipLevels( _In_ size_t width, _In_ size_t height, _Inout_ size_t& mipLevels );
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extern bool _CalculateMipLevels3D( _In_ size_t width, _In_ size_t height, _In_ size_t depth, _Inout_ size_t& mipLevels );
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//-------------------------------------------------------------------------------------
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// Determines number of image array entries and pixel size
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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void _DetermineImageArray( const TexMetadata& metadata, DWORD cpFlags,
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size_t& nImages, size_t& pixelSize )
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{
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assert( metadata.width > 0 && metadata.height > 0 && metadata.depth > 0 );
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assert( metadata.arraySize > 0 );
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assert( metadata.mipLevels > 0 );
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size_t _pixelSize = 0;
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size_t _nimages = 0;
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switch( metadata.dimension )
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{
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case TEX_DIMENSION_TEXTURE1D:
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case TEX_DIMENSION_TEXTURE2D:
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for( size_t item = 0; item < metadata.arraySize; ++item )
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{
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size_t w = metadata.width;
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size_t h = metadata.height;
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for( size_t level=0; level < metadata.mipLevels; ++level )
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{
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size_t rowPitch, slicePitch;
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ComputePitch( metadata.format, w, h, rowPitch, slicePitch, cpFlags );
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_pixelSize += slicePitch;
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++_nimages;
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if ( h > 1 )
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h >>= 1;
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if ( w > 1 )
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w >>= 1;
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}
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}
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break;
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case TEX_DIMENSION_TEXTURE3D:
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{
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size_t w = metadata.width;
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size_t h = metadata.height;
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size_t d = metadata.depth;
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for( size_t level=0; level < metadata.mipLevels; ++level )
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{
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size_t rowPitch, slicePitch;
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ComputePitch( metadata.format, w, h, rowPitch, slicePitch, cpFlags );
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for( size_t slice=0; slice < d; ++slice )
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{
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_pixelSize += slicePitch;
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++_nimages;
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}
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if ( h > 1 )
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h >>= 1;
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if ( w > 1 )
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w >>= 1;
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if ( d > 1 )
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d >>= 1;
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}
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}
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break;
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default:
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assert( false );
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break;
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}
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nImages = _nimages;
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pixelSize = _pixelSize;
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}
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//-------------------------------------------------------------------------------------
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// Fills in the image array entries
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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bool _SetupImageArray( uint8_t *pMemory, size_t pixelSize,
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const TexMetadata& metadata, DWORD cpFlags,
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Image* images, size_t nImages )
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{
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assert( pMemory );
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assert( pixelSize > 0 );
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assert( nImages > 0 );
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if ( !images )
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return false;
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size_t index = 0;
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uint8_t* pixels = pMemory;
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const uint8_t* pEndBits = pMemory + pixelSize;
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switch( metadata.dimension )
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{
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case TEX_DIMENSION_TEXTURE1D:
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case TEX_DIMENSION_TEXTURE2D:
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if (metadata.arraySize == 0 || metadata.mipLevels == 0)
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{
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return false;
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}
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for( size_t item = 0; item < metadata.arraySize; ++item )
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{
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size_t w = metadata.width;
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size_t h = metadata.height;
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for( size_t level=0; level < metadata.mipLevels; ++level )
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{
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if ( index >= nImages )
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{
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return false;
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}
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size_t rowPitch, slicePitch;
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ComputePitch( metadata.format, w, h, rowPitch, slicePitch, cpFlags );
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images[index].width = w;
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images[index].height = h;
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images[index].format = metadata.format;
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images[index].rowPitch = rowPitch;
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images[index].slicePitch = slicePitch;
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images[index].pixels = pixels;
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++index;
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pixels += slicePitch;
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if ( pixels > pEndBits )
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{
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return false;
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}
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if ( h > 1 )
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h >>= 1;
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if ( w > 1 )
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w >>= 1;
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}
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}
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return true;
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case TEX_DIMENSION_TEXTURE3D:
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{
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if (metadata.mipLevels == 0 || metadata.depth == 0)
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{
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return false;
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}
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size_t w = metadata.width;
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size_t h = metadata.height;
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size_t d = metadata.depth;
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for( size_t level=0; level < metadata.mipLevels; ++level )
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{
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size_t rowPitch, slicePitch;
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ComputePitch( metadata.format, w, h, rowPitch, slicePitch, cpFlags );
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for( size_t slice=0; slice < d; ++slice )
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{
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if ( index >= nImages )
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{
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return false;
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}
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// We use the same memory organization that Direct3D 11 needs for D3D11_SUBRESOURCE_DATA
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// with all slices of a given miplevel being continuous in memory
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images[index].width = w;
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images[index].height = h;
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images[index].format = metadata.format;
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images[index].rowPitch = rowPitch;
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images[index].slicePitch = slicePitch;
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images[index].pixels = pixels;
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++index;
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pixels += slicePitch;
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if ( pixels > pEndBits )
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{
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return false;
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}
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}
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if ( h > 1 )
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h >>= 1;
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if ( w > 1 )
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w >>= 1;
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if ( d > 1 )
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d >>= 1;
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}
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}
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return true;
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default:
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return false;
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}
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}
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//=====================================================================================
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// ScratchImage - Bitmap image container
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//=====================================================================================
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//-------------------------------------------------------------------------------------
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// Methods
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT ScratchImage::Initialize( const TexMetadata& mdata )
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{
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if ( !IsValid(mdata.format) || IsVideo(mdata.format) )
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return E_INVALIDARG;
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size_t mipLevels = mdata.mipLevels;
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switch( mdata.dimension )
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{
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case TEX_DIMENSION_TEXTURE1D:
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if ( !mdata.width || mdata.height != 1 || mdata.depth != 1 || !mdata.arraySize )
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return E_INVALIDARG;
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if ( !_CalculateMipLevels(mdata.width,1,mipLevels) )
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return E_INVALIDARG;
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break;
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case TEX_DIMENSION_TEXTURE2D:
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if ( !mdata.width || !mdata.height || mdata.depth != 1 || !mdata.arraySize )
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return E_INVALIDARG;
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if ( mdata.miscFlags & TEX_MISC_TEXTURECUBE )
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{
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if ( (mdata.arraySize % 6) != 0 )
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return E_INVALIDARG;
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}
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if ( !_CalculateMipLevels(mdata.width,mdata.height,mipLevels) )
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return E_INVALIDARG;
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break;
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case TEX_DIMENSION_TEXTURE3D:
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if ( !mdata.width || !mdata.height || !mdata.depth || mdata.arraySize != 1 )
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return E_INVALIDARG;
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if ( !_CalculateMipLevels3D(mdata.width,mdata.height,mdata.depth,mipLevels) )
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return E_INVALIDARG;
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break;
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default:
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return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
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}
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Release();
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_metadata.width = mdata.width;
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_metadata.height = mdata.height;
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_metadata.depth = mdata.depth;
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_metadata.arraySize = mdata.arraySize;
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_metadata.mipLevels = mipLevels;
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_metadata.miscFlags = mdata.miscFlags & TEX_MISC_TEXTURECUBE;
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_metadata.format = mdata.format;
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_metadata.dimension = mdata.dimension;
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size_t pixelSize, nimages;
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_DetermineImageArray( _metadata, CP_FLAGS_NONE, nimages, pixelSize );
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_image = new (std::nothrow) Image[ nimages ];
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if ( !_image )
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return E_OUTOFMEMORY;
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_nimages = nimages;
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memset( _image, 0, sizeof(Image) * nimages );
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_memory = reinterpret_cast<uint8_t*>( _aligned_malloc( pixelSize, 16 ) );
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if ( !_memory )
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{
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Release();
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return E_OUTOFMEMORY;
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}
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_size = pixelSize;
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if ( !_SetupImageArray( _memory, pixelSize, _metadata, CP_FLAGS_NONE, _image, nimages ) )
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{
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Release();
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return E_FAIL;
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}
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::Initialize1D( DXGI_FORMAT fmt, size_t length, size_t arraySize, size_t mipLevels )
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{
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if ( !IsValid(fmt) || IsVideo(fmt) || !length || !arraySize )
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return E_INVALIDARG;
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// 1D is a special case of the 2D case
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HRESULT hr = Initialize2D( fmt, length, 1, arraySize, mipLevels );
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if ( FAILED(hr) )
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return hr;
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_metadata.dimension = TEX_DIMENSION_TEXTURE1D;
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::Initialize2D( DXGI_FORMAT fmt, size_t width, size_t height, size_t arraySize, size_t mipLevels )
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{
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if ( !IsValid(fmt) || IsVideo(fmt) || !width || !height || !arraySize )
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return E_INVALIDARG;
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if ( !_CalculateMipLevels(width,height,mipLevels) )
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return E_INVALIDARG;
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Release();
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_metadata.width = width;
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_metadata.height = height;
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_metadata.depth = 1;
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_metadata.arraySize = arraySize;
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_metadata.mipLevels = mipLevels;
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_metadata.miscFlags = 0;
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_metadata.format = fmt;
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_metadata.dimension = TEX_DIMENSION_TEXTURE2D;
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size_t pixelSize, nimages;
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_DetermineImageArray( _metadata, CP_FLAGS_NONE, nimages, pixelSize );
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_image = new (std::nothrow) Image[ nimages ];
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if ( !_image )
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return E_OUTOFMEMORY;
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_nimages = nimages;
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memset( _image, 0, sizeof(Image) * nimages );
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_memory = reinterpret_cast<uint8_t*>( _aligned_malloc( pixelSize, 16 ) );
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if ( !_memory )
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{
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Release();
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return E_OUTOFMEMORY;
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}
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_size = pixelSize;
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if ( !_SetupImageArray( _memory, pixelSize, _metadata, CP_FLAGS_NONE, _image, nimages ) )
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{
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Release();
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return E_FAIL;
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}
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::Initialize3D( DXGI_FORMAT fmt, size_t width, size_t height, size_t depth, size_t mipLevels )
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{
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if ( !IsValid(fmt) || IsVideo(fmt) || !width || !height || !depth )
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return E_INVALIDARG;
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if ( !_CalculateMipLevels3D(width,height,depth,mipLevels) )
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return E_INVALIDARG;
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Release();
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_metadata.width = width;
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_metadata.height = height;
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_metadata.depth = depth;
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_metadata.arraySize = 1; // Direct3D 10.x/11 does not support arrays of 3D textures
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_metadata.mipLevels = mipLevels;
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_metadata.miscFlags = 0;
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_metadata.format = fmt;
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_metadata.dimension = TEX_DIMENSION_TEXTURE3D;
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size_t pixelSize, nimages;
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_DetermineImageArray( _metadata, CP_FLAGS_NONE, nimages, pixelSize );
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_image = new (std::nothrow) Image[ nimages ];
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if ( !_image )
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{
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Release();
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return E_OUTOFMEMORY;
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}
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_nimages = nimages;
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memset( _image, 0, sizeof(Image) * nimages );
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_memory = reinterpret_cast<uint8_t*>( _aligned_malloc( pixelSize, 16 ) );
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if ( !_memory )
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{
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Release();
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return E_OUTOFMEMORY;
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}
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_size = pixelSize;
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if ( !_SetupImageArray( _memory, pixelSize, _metadata, CP_FLAGS_NONE, _image, nimages ) )
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{
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Release();
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return E_FAIL;
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}
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::InitializeCube( DXGI_FORMAT fmt, size_t width, size_t height, size_t nCubes, size_t mipLevels )
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{
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if ( !IsValid(fmt) || IsVideo(fmt) || !width || !height || !nCubes )
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return E_INVALIDARG;
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// A DirectX11 cubemap is just a 2D texture array that is a multiple of 6 for each cube
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HRESULT hr = Initialize2D( fmt, width, height, nCubes * 6, mipLevels );
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if ( FAILED(hr) )
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return hr;
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_metadata.miscFlags |= TEX_MISC_TEXTURECUBE;
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::InitializeFromImage( const Image& srcImage, bool allow1D )
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{
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HRESULT hr = ( srcImage.height > 1 || !allow1D )
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? Initialize2D( srcImage.format, srcImage.width, srcImage.height, 1, 1 )
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: Initialize1D( srcImage.format, srcImage.width, 1, 1 );
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if ( FAILED(hr) )
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return hr;
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const uint8_t* sptr = reinterpret_cast<const uint8_t*>( srcImage.pixels );
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if ( !sptr )
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return E_POINTER;
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uint8_t* dptr = reinterpret_cast<uint8_t*>( _image[0].pixels );
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if ( !dptr )
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return E_POINTER;
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for( size_t y = 0; y < srcImage.height; ++y )
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{
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_CopyScanline( dptr, _image[0].rowPitch, sptr, srcImage.rowPitch, srcImage.format, TEXP_SCANLINE_NONE );
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sptr += srcImage.rowPitch;
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dptr += _image[0].rowPitch;
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}
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::InitializeArrayFromImages( const Image* images, size_t nImages, bool allow1D )
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{
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if ( !images || !nImages )
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return E_INVALIDARG;
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DXGI_FORMAT format = images[0].format;
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size_t width = images[0].width;
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size_t height = images[0].height;
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for( size_t index=0; index < nImages; ++index )
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{
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if ( !images[index].pixels )
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return E_POINTER;
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if ( images[index].format != format || images[index].width != width || images[index].height != height )
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{
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// All images must be the same format, width, and height
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return E_FAIL;
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}
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}
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HRESULT hr = ( height > 1 || !allow1D )
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? Initialize2D( format, width, height, nImages, 1 )
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: Initialize1D( format, width, nImages, 1 );
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if ( FAILED(hr) )
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return hr;
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for( size_t index=0; index < nImages; ++index )
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{
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const uint8_t* sptr = reinterpret_cast<const uint8_t*>( images[index].pixels );
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if ( !sptr )
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return E_POINTER;
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assert( index < _nimages );
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uint8_t* dptr = reinterpret_cast<uint8_t*>( _image[index].pixels );
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if ( !dptr )
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return E_POINTER;
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for( size_t y = 0; y < height; ++y )
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{
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_CopyScanline( dptr, _image[index].rowPitch, sptr, images[index].rowPitch, format, TEXP_SCANLINE_NONE );
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sptr += images[index].rowPitch;
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dptr += _image[index].rowPitch;
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}
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}
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::InitializeCubeFromImages( const Image* images, size_t nImages )
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{
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if ( !images || !nImages )
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return E_INVALIDARG;
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// A DirectX11 cubemap is just a 2D texture array that is a multiple of 6 for each cube
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if ( ( nImages % 6 ) != 0 )
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return E_INVALIDARG;
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HRESULT hr = InitializeArrayFromImages( images, nImages, false );
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if ( FAILED(hr) )
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return hr;
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_metadata.miscFlags |= TEX_MISC_TEXTURECUBE;
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return S_OK;
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}
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_Use_decl_annotations_
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HRESULT ScratchImage::Initialize3DFromImages( const Image* images, size_t depth )
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{
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if ( !images || !depth )
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return E_INVALIDARG;
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DXGI_FORMAT format = images[0].format;
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size_t width = images[0].width;
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size_t height = images[0].height;
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|
for( size_t slice=0; slice < depth; ++slice )
|
|
{
|
|
if ( !images[slice].pixels )
|
|
return E_POINTER;
|
|
|
|
if ( images[slice].format != format || images[slice].width != width || images[slice].height != height )
|
|
{
|
|
// All images must be the same format, width, and height
|
|
return E_FAIL;
|
|
}
|
|
}
|
|
|
|
HRESULT hr = Initialize3D( format, width, height, depth, 1 );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
for( size_t slice=0; slice < depth; ++slice )
|
|
{
|
|
const uint8_t* sptr = reinterpret_cast<const uint8_t*>( images[slice].pixels );
|
|
if ( !sptr )
|
|
return E_POINTER;
|
|
|
|
assert( slice < _nimages );
|
|
uint8_t* dptr = reinterpret_cast<uint8_t*>( _image[slice].pixels );
|
|
if ( !dptr )
|
|
return E_POINTER;
|
|
|
|
for( size_t y = 0; y < height; ++y )
|
|
{
|
|
_CopyScanline( dptr, _image[slice].rowPitch, sptr, images[slice].rowPitch, format, TEXP_SCANLINE_NONE );
|
|
sptr += images[slice].rowPitch;
|
|
dptr += _image[slice].rowPitch;
|
|
}
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
void ScratchImage::Release()
|
|
{
|
|
_nimages = 0;
|
|
_size = 0;
|
|
|
|
if ( _image )
|
|
{
|
|
delete [] _image;
|
|
_image = 0;
|
|
}
|
|
|
|
if ( _memory )
|
|
{
|
|
_aligned_free( _memory );
|
|
_memory = 0;
|
|
}
|
|
|
|
memset(&_metadata, 0, sizeof(_metadata));
|
|
}
|
|
|
|
_Use_decl_annotations_
|
|
bool ScratchImage::OverrideFormat( DXGI_FORMAT f )
|
|
{
|
|
if ( !_image )
|
|
return false;
|
|
|
|
if ( !IsValid( f ) || IsVideo( f ) )
|
|
return false;
|
|
|
|
if ( ( BitsPerPixel( f ) != BitsPerPixel( _metadata.format ) )
|
|
|| ( IsCompressed( f ) != IsCompressed( _metadata.format ) )
|
|
|| ( IsPacked( f ) != IsPacked( _metadata.format ) ) )
|
|
{
|
|
// Can't change the effective pitch of the format this way
|
|
return false;
|
|
}
|
|
|
|
for( size_t index = 0; index < _nimages; ++index )
|
|
{
|
|
_image[ index ].format = f;
|
|
}
|
|
|
|
_metadata.format = f;
|
|
|
|
return true;
|
|
}
|
|
|
|
_Use_decl_annotations_
|
|
const Image* ScratchImage::GetImage(size_t mip, size_t item, size_t slice) const
|
|
{
|
|
if ( mip >= _metadata.mipLevels )
|
|
return nullptr;
|
|
|
|
size_t index = 0;
|
|
|
|
switch( _metadata.dimension )
|
|
{
|
|
case TEX_DIMENSION_TEXTURE1D:
|
|
case TEX_DIMENSION_TEXTURE2D:
|
|
if ( slice > 0 )
|
|
return nullptr;
|
|
|
|
if ( item >= _metadata.arraySize )
|
|
return nullptr;
|
|
|
|
index = item*( _metadata.mipLevels ) + mip;
|
|
break;
|
|
|
|
case TEX_DIMENSION_TEXTURE3D:
|
|
if ( item > 0 )
|
|
{
|
|
// No support for arrays of volumes
|
|
return nullptr;
|
|
}
|
|
else
|
|
{
|
|
size_t d = _metadata.depth;
|
|
|
|
for( size_t level = 0; level < mip; ++level )
|
|
{
|
|
index += d;
|
|
if ( d > 1 )
|
|
d >>= 1;
|
|
}
|
|
|
|
if ( slice >= d )
|
|
return nullptr;
|
|
|
|
index += slice;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return nullptr;
|
|
}
|
|
|
|
return &_image[index];
|
|
}
|
|
|
|
}; // namespace
|