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/*
Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz>
This file is part of Magnum.
Magnum is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License version 3
only, as published by the Free Software Foundation.
Magnum is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License version 3 for more details.
*/
#include "VertexColorShader.h"
#include <Utility/Resource.h>
#include "Extensions.h"
#include "Shader.h"
namespace Magnum { namespace Shaders {
namespace {
template<std::uint8_t dimensions> struct ShaderName {};
template<> struct ShaderName<2> {
constexpr static const char* vertex() { return "VertexColorShader2D.vert"; }
constexpr static const char* fragment() { return "VertexColorShader2D.frag"; }
};
template<> struct ShaderName<3> {
constexpr static const char* vertex() { return "VertexColorShader3D.vert"; }
constexpr static const char* fragment() { return "VertexColorShader3D.frag"; }
};
}
template<std::uint8_t dimensions> VertexColorShader<dimensions>::VertexColorShader() {
Corrade::Utility::Resource rs("MagnumShaders");
/* Weird bug in GCC 4.5 - cannot use initializer list here, although the
same thing works in PhongShader flawlessly*/
#ifndef CORRADE_GCC45_COMPATIBILITY
#ifndef MAGNUM_TARGET_GLES
Version v = Context::current()->supportedVersion({Version::GL320, Version::GL210});
#else
Version v = Context::current()->supportedVersion({Version::GLES300, Version::GLES200});
#endif
#else
#ifndef MAGNUM_TARGET_GLES
std::initializer_list<Version> vs{Version::GL320, Version::GL210};
#else
std::initializer_list<Version> vs{Version::GLES300, Version::GLES200};
#endif
Version v = Context::current()->supportedVersion(vs);
#endif
Shader vertexShader(v, Shader::Type::Vertex);
vertexShader.addSource(rs.get("compatibility.glsl"));
vertexShader.addSource(rs.get(ShaderName<dimensions>::vertex()));
attachShader(vertexShader);
Shader fragmentShader(v, Shader::Type::Fragment);
fragmentShader.addSource(rs.get("compatibility.glsl"));
fragmentShader.addSource(rs.get(ShaderName<dimensions>::fragment()));
attachShader(fragmentShader);
#ifndef MAGNUM_TARGET_GLES
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::explicit_attrib_location>()) {
#else
if(!Context::current()->isVersionSupported(Version::GLES300)) {
#endif
bindAttributeLocation(Position::Location, "position");
bindAttributeLocation(Color::Location, "color");
}
link();
transformationProjectionMatrixUniform = uniformLocation("transformationProjectionMatrix");
}
template class VertexColorShader<2>;
template class VertexColorShader<3>;
}}