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68 lines
2.3 KiB
68 lines
2.3 KiB
/* |
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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 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 "FullScreenTriangle.h" |
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#include "Magnum/GL/Attribute.h" |
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#include "Magnum/GL/Buffer.h" |
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#include "Magnum/GL/Context.h" |
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#include "Magnum/GL/Extensions.h" |
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#include "Magnum/GL/Mesh.h" |
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#include "Magnum/GL/Version.h" |
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#include "Magnum/Math/Vector2.h" |
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namespace Magnum { namespace MeshTools { |
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GL::Mesh fullScreenTriangle(const GL::Version version) { |
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GL::Mesh mesh; |
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mesh.setPrimitive(GL::MeshPrimitive::Triangles) |
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.setCount(3); |
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#ifndef MAGNUM_TARGET_GLES2 |
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if(!GL::Context::current().isExtensionSupported<GL::Extensions::MAGNUM::shader_vertex_id>(version)) |
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#endif |
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{ |
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constexpr Vector2 triangle[]{ |
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{-1.0f, 1.0f}, |
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{-1.0f, -3.0f}, |
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{ 3.0f, 1.0f} |
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}; |
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GL::Buffer buffer{GL::Buffer::TargetHint::Array}; |
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buffer.setData(triangle, GL::BufferUsage::StaticDraw); |
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mesh.addVertexBuffer(std::move(buffer), 0, GL::Attribute<0, Vector2>{}); |
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} |
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#ifdef MAGNUM_TARGET_GLES2 |
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static_cast<void>(version); |
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#endif |
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return mesh; |
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} |
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GL::Mesh fullScreenTriangle() { |
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return fullScreenTriangle(GL::Context::current().version()); |
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} |
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}}
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