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358 lines
18 KiB
358 lines
18 KiB
/* |
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This file is part of Magnum. |
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Copyright © 2010, 2011, 2012, 2013, 2014, 2015 |
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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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#include "TextureState.h" |
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#include <Corrade/Utility/Assert.h> |
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#include "Magnum/AbstractTexture.h" |
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#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL) |
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#include "Magnum/BufferTexture.h" |
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#endif |
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#include "Magnum/Context.h" |
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#include "Magnum/Extensions.h" |
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#include "State.h" |
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namespace Magnum { namespace Implementation { |
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TextureState::TextureState(Context& context, std::vector<std::string>& extensions): maxSize{}, |
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#if !(defined(MAGNUM_TARGET_WEBGL) && defined(MAGNUM_TARGET_GLES2)) |
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max3DSize{}, |
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#endif |
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maxCubeMapSize{}, |
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#ifndef MAGNUM_TARGET_GLES2 |
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maxArrayLayers{}, |
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#endif |
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#ifndef MAGNUM_TARGET_GLES |
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maxRectangleSize{}, maxBufferSize{}, |
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#endif |
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maxTextureUnits(0), |
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#ifndef MAGNUM_TARGET_GLES2 |
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maxLodBias{0.0f}, |
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#endif |
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maxMaxAnisotropy(0.0f), currentTextureUnit(0) |
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#ifndef MAGNUM_TARGET_GLES2 |
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, maxColorSamples(0), maxDepthSamples(0), maxIntegerSamples(0) |
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#endif |
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#ifndef MAGNUM_TARGET_GLES |
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, bufferOffsetAlignment(0) |
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#endif |
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{ |
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/* Create implementation */ |
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#ifndef MAGNUM_TARGET_GLES |
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if(context.isExtensionSupported<Extensions::GL::ARB::direct_state_access>()) { |
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extensions.push_back(Extensions::GL::ARB::direct_state_access::string()); |
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createImplementation = &AbstractTexture::createImplementationDSA; |
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} else |
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#endif |
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{ |
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createImplementation = &AbstractTexture::createImplementationDefault; |
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} |
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/* Single bind implementation */ |
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#ifndef MAGNUM_TARGET_GLES |
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if(context.isExtensionSupported<Extensions::GL::ARB::direct_state_access>()) { |
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/* Extension name added below */ |
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unbindImplementation = &AbstractTexture::unbindImplementationDSA; |
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bindImplementation = &AbstractTexture::bindImplementationDSA; |
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} else if(context.isExtensionSupported<Extensions::GL::ARB::multi_bind>()) { |
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/* Extension name added below */ |
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unbindImplementation = &AbstractTexture::unbindImplementationMulti; |
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bindImplementation = &AbstractTexture::bindImplementationMulti; |
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} else if(context.isExtensionSupported<Extensions::GL::EXT::direct_state_access>()) { |
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/* Extension name added below */ |
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unbindImplementation = &AbstractTexture::unbindImplementationDSAEXT; |
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bindImplementation = &AbstractTexture::bindImplementationDSAEXT; |
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} else |
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#endif |
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{ |
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unbindImplementation = &AbstractTexture::unbindImplementationDefault; |
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bindImplementation = &AbstractTexture::bindImplementationDefault; |
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} |
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/* Multi bind implementation */ |
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#ifndef MAGNUM_TARGET_GLES |
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if(context.isExtensionSupported<Extensions::GL::ARB::multi_bind>()) { |
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extensions.push_back(Extensions::GL::ARB::multi_bind::string()); |
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bindMultiImplementation = &AbstractTexture::bindImplementationMulti; |
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} else |
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#endif |
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{ |
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bindMultiImplementation = &AbstractTexture::bindImplementationFallback; |
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} |
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/* DSA/non-DSA implementation */ |
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#ifndef MAGNUM_TARGET_GLES |
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if(context.isExtensionSupported<Extensions::GL::ARB::direct_state_access>()) { |
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extensions.push_back(Extensions::GL::ARB::direct_state_access::string()); |
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parameteriImplementation = &AbstractTexture::parameterImplementationDSA; |
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parameterfImplementation = &AbstractTexture::parameterImplementationDSA; |
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parameterivImplementation = &AbstractTexture::parameterImplementationDSA; |
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parameterfvImplementation = &AbstractTexture::parameterImplementationDSA; |
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parameterIuivImplementation = &AbstractTexture::parameterIImplementationDSA; |
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parameterIivImplementation = &AbstractTexture::parameterIImplementationDSA; |
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getLevelParameterivImplementation = &AbstractTexture::getLevelParameterImplementationDSA; |
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mipmapImplementation = &AbstractTexture::mipmapImplementationDSA; |
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subImage1DImplementation = &AbstractTexture::subImageImplementationDSA; |
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subImage2DImplementation = &AbstractTexture::subImageImplementationDSA; |
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subImage3DImplementation = &AbstractTexture::subImageImplementationDSA; |
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compressedSubImage1DImplementation = &AbstractTexture::compressedSubImageImplementationDSA; |
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compressedSubImage2DImplementation = &AbstractTexture::compressedSubImageImplementationDSA; |
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compressedSubImage3DImplementation = &AbstractTexture::compressedSubImageImplementationDSA; |
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setBufferImplementation = &BufferTexture::setBufferImplementationDSA; |
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setBufferRangeImplementation = &BufferTexture::setBufferRangeImplementationDSA; |
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cubeSubImageImplementation = &CubeMapTexture::subImageImplementationDSA; |
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cubeCompressedSubImageImplementation = &CubeMapTexture::compressedSubImageImplementationDSA; |
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} else if(context.isExtensionSupported<Extensions::GL::EXT::direct_state_access>()) { |
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extensions.push_back(Extensions::GL::EXT::direct_state_access::string()); |
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parameteriImplementation = &AbstractTexture::parameterImplementationDSAEXT; |
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parameterfImplementation = &AbstractTexture::parameterImplementationDSAEXT; |
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parameterivImplementation = &AbstractTexture::parameterImplementationDSAEXT; |
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parameterfvImplementation = &AbstractTexture::parameterImplementationDSAEXT; |
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parameterIuivImplementation = &AbstractTexture::parameterIImplementationDSAEXT; |
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parameterIivImplementation = &AbstractTexture::parameterIImplementationDSAEXT; |
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getLevelParameterivImplementation = &AbstractTexture::getLevelParameterImplementationDSAEXT; |
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mipmapImplementation = &AbstractTexture::mipmapImplementationDSAEXT; |
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subImage1DImplementation = &AbstractTexture::subImageImplementationDSAEXT; |
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subImage2DImplementation = &AbstractTexture::subImageImplementationDSAEXT; |
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subImage3DImplementation = &AbstractTexture::subImageImplementationDSAEXT; |
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compressedSubImage1DImplementation = &AbstractTexture::compressedSubImageImplementationDSAEXT; |
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compressedSubImage2DImplementation = &AbstractTexture::compressedSubImageImplementationDSAEXT; |
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compressedSubImage3DImplementation = &AbstractTexture::compressedSubImageImplementationDSAEXT; |
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setBufferImplementation = &BufferTexture::setBufferImplementationDSAEXT; |
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setBufferRangeImplementation = &BufferTexture::setBufferRangeImplementationDSAEXT; |
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cubeSubImageImplementation = &CubeMapTexture::subImageImplementationDSAEXT; |
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cubeCompressedSubImageImplementation = &CubeMapTexture::compressedSubImageImplementationDSAEXT; |
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} else |
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#endif |
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{ |
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parameteriImplementation = &AbstractTexture::parameterImplementationDefault; |
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parameterfImplementation = &AbstractTexture::parameterImplementationDefault; |
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#ifndef MAGNUM_TARGET_GLES2 |
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parameterivImplementation = &AbstractTexture::parameterImplementationDefault; |
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#endif |
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parameterfvImplementation = &AbstractTexture::parameterImplementationDefault; |
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#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL) |
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parameterIuivImplementation = &AbstractTexture::parameterIImplementationDefault; |
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parameterIivImplementation = &AbstractTexture::parameterIImplementationDefault; |
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#endif |
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#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL) |
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getLevelParameterivImplementation = &AbstractTexture::getLevelParameterImplementationDefault; |
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#endif |
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mipmapImplementation = &AbstractTexture::mipmapImplementationDefault; |
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#ifndef MAGNUM_TARGET_GLES |
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subImage1DImplementation = &AbstractTexture::subImageImplementationDefault; |
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compressedSubImage1DImplementation = &AbstractTexture::compressedSubImageImplementationDefault; |
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#endif |
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subImage2DImplementation = &AbstractTexture::subImageImplementationDefault; |
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compressedSubImage2DImplementation = &AbstractTexture::compressedSubImageImplementationDefault; |
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#if !(defined(MAGNUM_TARGET_WEBGL) && defined(MAGNUM_TARGET_GLES2)) |
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subImage3DImplementation = &AbstractTexture::subImageImplementationDefault; |
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compressedSubImage3DImplementation = &AbstractTexture::compressedSubImageImplementationDefault; |
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#endif |
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#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL) |
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setBufferImplementation = &BufferTexture::setBufferImplementationDefault; |
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setBufferRangeImplementation = &BufferTexture::setBufferRangeImplementationDefault; |
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#endif |
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cubeSubImageImplementation = &CubeMapTexture::subImageImplementationDefault; |
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cubeCompressedSubImageImplementation = &CubeMapTexture::compressedSubImageImplementationDefault; |
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} |
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/* Data invalidation implementation */ |
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#ifndef MAGNUM_TARGET_GLES |
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if(context.isExtensionSupported<Extensions::GL::ARB::invalidate_subdata>()) { |
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extensions.push_back(Extensions::GL::ARB::invalidate_subdata::string()); |
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invalidateImageImplementation = &AbstractTexture::invalidateImageImplementationARB; |
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invalidateSubImageImplementation = &AbstractTexture::invalidateSubImageImplementationARB; |
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} else |
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#endif |
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{ |
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invalidateImageImplementation = &AbstractTexture::invalidateImageImplementationNoOp; |
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invalidateSubImageImplementation = &AbstractTexture::invalidateSubImageImplementationNoOp; |
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} |
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#ifndef MAGNUM_TARGET_GLES |
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/* Image retrieval implementation */ |
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if(context.isExtensionSupported<Extensions::GL::ARB::direct_state_access>()) { |
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/* Extension name added above */ |
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getImageImplementation = &AbstractTexture::getImageImplementationDSA; |
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getCompressedImageImplementation = &AbstractTexture::getCompressedImageImplementationDSA; |
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} else if(context.isExtensionSupported<Extensions::GL::ARB::robustness>()) { |
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extensions.push_back(Extensions::GL::ARB::robustness::string()); |
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getImageImplementation = &AbstractTexture::getImageImplementationRobustness; |
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getCompressedImageImplementation = &AbstractTexture::getCompressedImageImplementationRobustness; |
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} else if(context.isExtensionSupported<Extensions::GL::EXT::direct_state_access>()) { |
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/* Extension name added above */ |
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getImageImplementation = &AbstractTexture::getImageImplementationDSAEXT; |
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getCompressedImageImplementation = &AbstractTexture::getCompressedImageImplementationDSAEXT; |
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} else { |
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getImageImplementation = &AbstractTexture::getImageImplementationDefault; |
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getCompressedImageImplementation = &AbstractTexture::getCompressedImageImplementationDefault; |
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} |
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/* Image retrieval implementation for cube map */ |
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if(context.isExtensionSupported<Extensions::GL::ARB::get_texture_sub_image>()) { |
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extensions.push_back(Extensions::GL::ARB::get_texture_sub_image::string()); |
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getCubeImageImplementation = &CubeMapTexture::getImageImplementationDSA; |
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getCompressedCubeImageImplementation = &CubeMapTexture::getCompressedImageImplementationDSA; |
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} else if(context.isExtensionSupported<Extensions::GL::ARB::robustness>()) { |
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/* Extension name added above */ |
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getCubeImageImplementation = &CubeMapTexture::getImageImplementationRobustness; |
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getCompressedCubeImageImplementation = &CubeMapTexture::getCompressedImageImplementationRobustness; |
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} else if(context.isExtensionSupported<Extensions::GL::EXT::direct_state_access>()) { |
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/* Extension name added above */ |
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getCubeImageImplementation = &CubeMapTexture::getImageImplementationDSAEXT; |
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getCompressedCubeImageImplementation = &CubeMapTexture::getCompressedImageImplementationDSAEXT; |
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} else { |
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getCubeImageImplementation = &CubeMapTexture::getImageImplementationDefault; |
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getCompressedCubeImageImplementation = &CubeMapTexture::getCompressedImageImplementationDefault; |
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} |
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#endif |
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/* Texture storage implementation for desktop and ES */ |
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#ifndef MAGNUM_TARGET_WEBGL |
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#ifndef MAGNUM_TARGET_GLES |
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if(context.isExtensionSupported<Extensions::GL::ARB::texture_storage>()) |
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#elif defined(MAGNUM_TARGET_GLES2) |
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if(context.isExtensionSupported<Extensions::GL::EXT::texture_storage>()) |
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#endif |
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{ |
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#ifndef MAGNUM_TARGET_GLES |
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extensions.push_back(Extensions::GL::ARB::texture_storage::string()); |
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#elif defined(MAGNUM_TARGET_GLES2) |
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extensions.push_back(Extensions::GL::EXT::texture_storage::string()); |
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#endif |
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#ifndef MAGNUM_TARGET_GLES |
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if(context.isExtensionSupported<Extensions::GL::ARB::direct_state_access>()) { |
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storage1DImplementation = &AbstractTexture::storageImplementationDSA; |
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storage2DImplementation = &AbstractTexture::storageImplementationDSA; |
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storage3DImplementation = &AbstractTexture::storageImplementationDSA; |
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} else if(context.isExtensionSupported<Extensions::GL::EXT::direct_state_access>()) { |
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storage1DImplementation = &AbstractTexture::storageImplementationDSAEXT; |
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storage2DImplementation = &AbstractTexture::storageImplementationDSAEXT; |
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storage3DImplementation = &AbstractTexture::storageImplementationDSAEXT; |
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} else |
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#endif |
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{ |
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#ifndef MAGNUM_TARGET_GLES |
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storage1DImplementation = &AbstractTexture::storageImplementationDefault; |
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#endif |
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storage2DImplementation = &AbstractTexture::storageImplementationDefault; |
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storage3DImplementation = &AbstractTexture::storageImplementationDefault; |
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} |
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} |
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#if !defined(MAGNUM_TARGET_GLES) || defined(MAGNUM_TARGET_GLES2) |
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else { |
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#ifndef MAGNUM_TARGET_GLES |
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storage1DImplementation = &AbstractTexture::storageImplementationFallback; |
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#endif |
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storage2DImplementation = &AbstractTexture::storageImplementationFallback; |
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storage3DImplementation = &AbstractTexture::storageImplementationFallback; |
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} |
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#endif |
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/* Texture storage implementation for WebGL 1.0 */ |
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#elif defined(MAGNUM_TARGET_GLES2) |
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storage2DImplementation = &AbstractTexture::storageImplementationFallback; |
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/* Texture storage implementation for WebGL 2.0 */ |
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#else |
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storage2DImplementation = &AbstractTexture::storageImplementationDefault; |
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storage3DImplementation = &AbstractTexture::storageImplementationDefault; |
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#endif |
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#ifndef MAGNUM_TARGET_GLES |
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/* Storage implementation for multisample textures. The fallback doesn't |
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have DSA alternative, so it must be handled specially. */ |
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if(context.isExtensionSupported<Extensions::GL::ARB::texture_storage_multisample>()) { |
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extensions.push_back(Extensions::GL::ARB::texture_storage_multisample::string()); |
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if(context.isExtensionSupported<Extensions::GL::ARB::direct_state_access>()) { |
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storage2DMultisampleImplementation = &AbstractTexture::storageMultisampleImplementationDSA; |
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storage3DMultisampleImplementation = &AbstractTexture::storageMultisampleImplementationDSA; |
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} else if(context.isExtensionSupported<Extensions::GL::EXT::direct_state_access>()) { |
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storage2DMultisampleImplementation = &AbstractTexture::storageMultisampleImplementationDSAEXT; |
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storage3DMultisampleImplementation = &AbstractTexture::storageMultisampleImplementationDSAEXT; |
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} else { |
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storage2DMultisampleImplementation = &AbstractTexture::storageMultisampleImplementationDefault; |
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storage3DMultisampleImplementation = &AbstractTexture::storageMultisampleImplementationDefault; |
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} |
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} else { |
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storage2DMultisampleImplementation = &AbstractTexture::storageMultisampleImplementationFallback; |
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storage3DMultisampleImplementation = &AbstractTexture::storageMultisampleImplementationFallback; |
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} |
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#elif !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL) |
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storage2DMultisampleImplementation = &AbstractTexture::storageMultisampleImplementationDefault; |
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storage3DMultisampleImplementation = &AbstractTexture::storageMultisampleImplementationDefault; |
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#endif |
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/* Anisotropic filter implementation */ |
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if(context.isExtensionSupported<Extensions::GL::EXT::texture_filter_anisotropic>()) { |
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extensions.push_back(Extensions::GL::EXT::texture_filter_anisotropic::string()); |
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setMaxAnisotropyImplementation = &AbstractTexture::setMaxAnisotropyImplementationExt; |
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} else setMaxAnisotropyImplementation = &AbstractTexture::setMaxAnisotropyImplementationNoOp; |
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/* Resize bindings array to hold all possible texture units */ |
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glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits); |
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CORRADE_INTERNAL_ASSERT(maxTextureUnits > 0); |
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bindings.resize(maxTextureUnits); |
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} |
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TextureState::~TextureState() = default; |
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void TextureState::reset() { |
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std::fill_n(bindings.begin(), bindings.size(), std::pair<GLenum, GLuint>{{}, State::DisengagedBinding}); |
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} |
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}}
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