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96 lines
4.1 KiB
96 lines
4.1 KiB
10 years ago
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#ifndef Magnum_DebugTools_TextureImage_h
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#define Magnum_DebugTools_TextureImage_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
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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::DebugTools::textureSubImage()
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*/
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#include "Magnum/Magnum.h"
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#include "Magnum/DebugTools/visibility.h"
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namespace Magnum { namespace DebugTools {
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/**
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@brief Read range of given texture mip level to image
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Emulates @ref Texture::subImage() "*Texture::subImage()" call on platforms that
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don't support it (such as OpenGL ES) by creating a framebuffer object and using
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@ref Framebuffer::read(). Note that only @ref PixelFormat and @ref PixelType
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values that are marked as framebuffer readable are supported.
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*/
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MAGNUM_DEBUGTOOLS_EXPORT void textureSubImage(Texture2D& texture, Int level, const Range2Di& range, Image2D& image);
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/** @overload */
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MAGNUM_DEBUGTOOLS_EXPORT void textureSubImage(CubeMapTexture& texture, CubeMapCoordinate coordinate, Int level, const Range2Di& range, Image2D& image);
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/**
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@brief Read range of given texture mip level to image
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Convenience alternative to the above, example usage:
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@code
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Image2D image = DebugTools::textureSubImage(texture, 0, rect, {PixelFormat::RGBA, PixelType::UnsignedByte});
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@endcode
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*/
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MAGNUM_DEBUGTOOLS_EXPORT Image2D textureSubImage(Texture2D& texture, Int level, const Range2Di& range, Image2D&& image);
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/** @overload */
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MAGNUM_DEBUGTOOLS_EXPORT Image2D textureSubImage(CubeMapTexture& texture, CubeMapCoordinate coordinate, Int level, const Range2Di& range, Image2D&& image);
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#ifndef MAGNUM_TARGET_GLES2
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/**
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@brief Read range of given texture mip level to buffer image
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Emulates @ref Texture::subImage() "*Texture::subImage()" call on platforms that
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don't support it (such as OpenGL ES) by creating a framebuffer object and using
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@ref Framebuffer::read(). Note that only @ref PixelFormat and @ref PixelType
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values that are marked as framebuffer readable are supported.
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@requires_gles30 Pixel buffer objects are not available in OpenGL ES 2.0.
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@requires_webgl20 Pixel buffer objects are not available in WebGL 1.0.
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*/
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MAGNUM_DEBUGTOOLS_EXPORT void textureSubImage(Texture2D& texture, Int level, const Range2Di& range, BufferImage2D& image, BufferUsage usage);
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/** @overload */
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MAGNUM_DEBUGTOOLS_EXPORT void textureSubImage(CubeMapTexture& texture, CubeMapCoordinate coordinate, Int level, const Range2Di& range, BufferImage2D& image, BufferUsage usage);
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/**
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@brief Read range of given texture mip level to buffer image
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Convenience alternative to the above, example usage:
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@code
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BufferImage2D image = DebugTools::textureSubImage(texture, 0, rect, {PixelFormat::RGBA, PixelType::UnsignedByte}, BufferUsage::StaticRead);
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@endcode
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*/
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MAGNUM_DEBUGTOOLS_EXPORT BufferImage2D textureSubImage(Texture2D& texture, Int level, const Range2Di& range, BufferImage2D&& image, BufferUsage usage);
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/** @overload */
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MAGNUM_DEBUGTOOLS_EXPORT BufferImage2D textureSubImage(CubeMapTexture& texture, CubeMapCoordinate coordinate, Int level, const Range2Di& range, BufferImage2D&& image, BufferUsage usage);
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#endif
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}}
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#endif
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