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143 lines
6.5 KiB
143 lines
6.5 KiB
#ifndef Magnum_Math_ColorBatch_h |
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#define Magnum_Math_ColorBatch_h |
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/* |
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This file is part of Magnum. |
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Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, |
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2020, 2021, 2022 Vladimír Vondruš <mosra@centrum.cz> |
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Permission is hereby granted, free of charge, to any person obtaining a |
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copy of this software and associated documentation files (the "Software"), |
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to deal in the Software without restriction, including without limitation |
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the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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and/or sell copies of the Software, and to permit persons to whom the |
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Software is furnished to do so, subject to the following conditions: |
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The above copyright notice and this permission notice shall be included |
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in all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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DEALINGS IN THE SOFTWARE. |
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*/ |
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/** @file |
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* @brief Function @ref Magnum::Math::yFlipBc1InPlace(), @ref Magnum::Math::yFlipBc3InPlace(), @ref Magnum::Math::yFlipBc4InPlace(), @ref Magnum::Math::yFlipBc5InPlace() |
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* @m_since_latest |
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*/ |
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#include <Corrade/Containers/Containers.h> |
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#include "Magnum/visibility.h" |
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namespace Magnum { namespace Math { |
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/** |
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@brief Y-flip BC1 texture blocks in-place |
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@m_since_latest |
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Performs a Y flip of given 3D image by flipping block order and modifying |
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internal block representation to encode the same information, just upside down. |
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No decoding or re-encoding of the block data is performed, thus the operation |
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is lossless. However note that this operation flips full blocks --- if size of |
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the actual image isn't whole blocks, the flipped image will be shifted compared |
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to the original, possibly with garbage data appearing in the first few rows. |
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First dimension is expected to be image slices, second block rows, third |
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2D blocks, fourth the 64-bit 4x4 block data, i.e. the last dimension is |
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expected to be contiguous with size of 8. |
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@see @ref CompressedPixelFormat::Bc1RGBUnorm, |
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@ref CompressedPixelFormat::Bc1RGBSrgb, |
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@ref CompressedPixelFormat::Bc1RGBAUnorm, |
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@ref CompressedPixelFormat::Bc1RGBASrgb |
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*/ |
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MAGNUM_EXPORT void yFlipBc1InPlace(const Corrade::Containers::StridedArrayView4D<char>& blocks); |
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/** |
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@brief Y-flip BC2 texture blocks in-place |
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@m_since_latest |
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Performs a Y flip of given 3D image by flipping block order and modifying |
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internal block representation to encode the same information, just upside down. |
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No decoding or re-encoding of the block data is performed, thus the operation |
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is lossless. However note that this operation flips full blocks --- if size of |
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the actual image isn't whole blocks, the flipped image will be shifted compared |
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to the original, possibly with garbage data appearing in the first few rows. |
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First dimension is expected to be image slices, second block rows, third |
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2D blocks, fourth the 128-bit 4x4 block data, i.e. the last dimension is |
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expected to be contiguous with size of 16. |
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@see @ref CompressedPixelFormat::Bc2RGBAUnorm, |
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@ref CompressedPixelFormat::Bc2RGBASrgb |
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*/ |
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MAGNUM_EXPORT void yFlipBc2InPlace(const Corrade::Containers::StridedArrayView4D<char>& blocks); |
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/** |
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@brief Y-flip BC3 texture blocks in-place |
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@m_since_latest |
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Performs a Y flip of given 3D image by flipping block order and modifying |
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internal block representation to encode the same information, just upside down. |
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No decoding or re-encoding of the block data is performed, thus the operation |
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is lossless. However note that this operation flips full blocks --- if size of |
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the actual image isn't whole blocks, the flipped image will be shifted compared |
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to the original, possibly with garbage data appearing in the first few rows. |
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First dimension is expected to be image slices, second block rows, third |
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2D blocks, fourth the 128-bit 4x4 block data, i.e. the last dimension is |
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expected to be contiguous with size of 16. As BC3 is internally a 64-bit BC4 |
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block for alpha followed by a 64-bit BC1 block for RGB, the operation is the |
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same as performing @ref yFlipBc4InPlace() on the first half and |
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@ref yFlipBc1InPlace() on second half of each block. |
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@see @ref CompressedPixelFormat::Bc3RGBAUnorm, |
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@ref CompressedPixelFormat::Bc3RGBASrgb |
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*/ |
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MAGNUM_EXPORT void yFlipBc3InPlace(const Corrade::Containers::StridedArrayView4D<char>& blocks); |
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/** |
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@brief Y-flip BC4 texture blocks in-place |
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@m_since_latest |
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Performs a Y flip of given 3D image by flipping block order and modifying |
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internal block representation to encode the same information, just upside down. |
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No decoding or re-encoding of the block data is performed, thus the operation |
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is lossless. However note that this operation flips full blocks --- if size of |
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the actual image isn't whole blocks, the flipped image will be shifted compared |
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to the original, possibly with garbage data appearing in the first few rows. |
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First dimension is expected to be image slices, second block rows, third |
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2D blocks, fourth the 64-bit 4x4 block data, i.e. the last dimension is |
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expected to be contiguous with size of 8. |
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@see @ref CompressedPixelFormat::Bc4RUnorm, |
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@ref CompressedPixelFormat::Bc4RSnorm |
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*/ |
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MAGNUM_EXPORT void yFlipBc4InPlace(const Corrade::Containers::StridedArrayView4D<char>& blocks); |
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/** |
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@brief Y-flip BC5 texture blocks in-place |
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@m_since_latest |
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Performs a Y flip of given 3D image by flipping block order and modifying |
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internal block representation to encode the same information, just upside down. |
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No decoding or re-encoding of the block data is performed, thus the operation |
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is lossless. However note that this operation flips full blocks --- if size of |
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the actual image isn't whole blocks, the flipped image will be shifted compared |
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to the original, possibly with garbage data appearing in the first few rows. |
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First dimension is expected to be image slices, second block rows, third |
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2D blocks, fourth the 128-bit 4x4 block data, i.e. the last dimension is |
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expected to be contiguous with size of 16. As BC5 is internally two 64-bit BC4 |
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blocks, the operation is the same as performing @ref yFlipBc4InPlace() on both |
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halves of each block. |
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@see @ref CompressedPixelFormat::Bc5RGUnorm, |
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@ref CompressedPixelFormat::Bc5RGSnorm |
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*/ |
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MAGNUM_EXPORT void yFlipBc5InPlace(const Corrade::Containers::StridedArrayView4D<char>& blocks); |
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}} |
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#endif
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