mirror of https://github.com/mosra/magnum.git
Vladimír Vondruš
12 years ago
13 changed files with 257 additions and 227 deletions
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/*
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This file is part of Magnum. |
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Copyright © 2010, 2011, 2012, 2013, 2014 |
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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 "FramebufferState.h" |
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#include "Magnum/Context.h" |
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#include "Magnum/Extensions.h" |
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#include "Magnum/Renderbuffer.h" |
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namespace Magnum { namespace Implementation { |
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FramebufferState::FramebufferState(Context& context, std::vector<std::string>& extensions): readBinding(0), drawBinding(0), renderbufferBinding(0), maxDrawBuffers(0), maxColorAttachments(0), maxRenderbufferSize(0), maxSamples(0) |
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#ifndef MAGNUM_TARGET_GLES |
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, maxDualSourceDrawBuffers(0) |
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#endif |
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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::EXT::direct_state_access>()) { |
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extensions.push_back(Extensions::GL::EXT::direct_state_access::string()); |
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checkStatusImplementation = &AbstractFramebuffer::checkStatusImplementationDSA; |
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drawBuffersImplementation = &AbstractFramebuffer::drawBuffersImplementationDSA; |
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drawBufferImplementation = &AbstractFramebuffer::drawBufferImplementationDSA; |
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readBufferImplementation = &AbstractFramebuffer::readBufferImplementationDSA; |
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renderbufferImplementation = &Framebuffer::renderbufferImplementationDSA; |
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texture1DImplementation = &Framebuffer::texture1DImplementationDSA; |
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texture2DImplementation = &Framebuffer::texture2DImplementationDSA; |
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texture3DImplementation = &Framebuffer::texture3DImplementationDSA; |
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renderbufferStorageImplementation = &Renderbuffer::storageImplementationDSA; |
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} else |
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#endif |
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{ |
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checkStatusImplementation = &AbstractFramebuffer::checkStatusImplementationDefault; |
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drawBuffersImplementation = &AbstractFramebuffer::drawBuffersImplementationDefault; |
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drawBufferImplementation = &AbstractFramebuffer::drawBufferImplementationDefault; |
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readBufferImplementation = &AbstractFramebuffer::readBufferImplementationDefault; |
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renderbufferImplementation = &Framebuffer::renderbufferImplementationDefault; |
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#ifndef MAGNUM_TARGET_GLES |
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texture1DImplementation = &Framebuffer::texture1DImplementationDefault; |
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#endif |
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texture2DImplementation = &Framebuffer::texture2DImplementationDefault; |
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texture3DImplementation = &Framebuffer::texture3DImplementationDefault; |
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renderbufferStorageImplementation = &Renderbuffer::storageImplementationDefault; |
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} |
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/* Framebuffer binding on ES2 */ |
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#ifdef MAGNUM_TARGET_GLES2 |
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/* Optimistically set separate binding targets and check if one of the
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extensions providing them is available */ |
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readTarget = FramebufferTarget::Read; |
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drawTarget = FramebufferTarget::Draw; |
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if(context.isExtensionSupported<Extensions::GL::ANGLE::framebuffer_blit>()) { |
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extensions.push_back(Extensions::GL::ANGLE::framebuffer_blit::string()); |
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} else if(context.isExtensionSupported<Extensions::GL::APPLE::framebuffer_multisample>()) { |
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extensions.push_back(Extensions::GL::APPLE::framebuffer_multisample::string()); |
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} else if(context.isExtensionSupported<Extensions::GL::NV::framebuffer_blit>()) { |
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extensions.push_back(Extensions::GL::NV::framebuffer_blit::string()); |
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/* NV_framebuffer_multisample requires NV_framebuffer_blit, which has these
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enums. However, on my system only NV_framebuffer_multisample is |
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supported, but NV_framebuffer_blit isn't. I will hold my breath and |
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assume these enums are available. */ |
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} else if(context.isExtensionSupported<Extensions::GL::NV::framebuffer_multisample>()) { |
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extensions.push_back(Extensions::GL::NV::framebuffer_multisample::string()); |
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/* If no such extension is available, reset back to unified target */ |
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} else readTarget = drawTarget = FramebufferTarget::ReadDraw; |
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#endif |
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/* Framebuffer reading implementation */ |
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#ifndef MAGNUM_TARGET_GLES |
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if(context.isExtensionSupported<Extensions::GL::ARB::robustness>()) |
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#else |
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if(context.isExtensionSupported<Extensions::GL::EXT::robustness>()) |
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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::robustness::string()); |
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#else |
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extensions.push_back(Extensions::GL::EXT::robustness::string()); |
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#endif |
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readImplementation = &AbstractFramebuffer::readImplementationRobustness; |
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} else readImplementation = &AbstractFramebuffer::readImplementationDefault; |
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/* Multisample renderbuffer storage implementation */ |
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#ifndef MAGNUM_TARGET_GLES |
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if(context.isExtensionSupported<Extensions::GL::EXT::direct_state_access>()) { |
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/* Extension added above */ |
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renderbufferStorageMultisampleImplementation = &Renderbuffer::storageMultisampleImplementationDSA; |
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} else |
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#endif |
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{ |
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#ifdef MAGNUM_TARGET_GLES2 |
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if(context.isExtensionSupported<Extensions::GL::ANGLE::framebuffer_multisample>()) { |
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extensions.push_back(Extensions::GL::ANGLE::framebuffer_multisample::string()); |
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renderbufferStorageMultisampleImplementation = &Renderbuffer::storageMultisampleImplementationANGLE; |
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} else if (context.isExtensionSupported<Extensions::GL::NV::framebuffer_multisample>()) { |
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extensions.push_back(Extensions::GL::NV::framebuffer_multisample::string()); |
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renderbufferStorageMultisampleImplementation = &Renderbuffer::storageMultisampleImplementationNV; |
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} else renderbufferStorageMultisampleImplementation = nullptr; |
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#else |
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renderbufferStorageMultisampleImplementation = &Renderbuffer::storageMultisampleImplementationDefault; |
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#endif |
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} |
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} |
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}} |
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