void ContextGLTest::isVersionSupported() {
const Version v = Context::current()->version();
CORRADE_VERIFY(Context::current()->isVersionSupported(v));
CORRADE_VERIFY(Context::current()->isVersionSupported(Version(Int(v)-1)));
CORRADE_VERIFY(!Context::current()->isVersionSupported(Version(Int(v)+1)));
/* No assertions should be fired */
MAGNUM_ASSERT_VERSION_SUPPORTED(v);
MAGNUM_ASSERT_VERSION_SUPPORTED(Version(Int(v)-1));
}
TexturedTriangleShader::TexturedTriangleShader() {
MAGNUM_ASSERT_VERSION_SUPPORTED(Version::GL330);
const Utility::Resource rs{"textured-triangle-data"};
Shader vert{Version::GL330, Shader::Type::Vertex};
Shader frag{Version::GL330, Shader::Type::Fragment};
vert.addSource(rs.get("TexturedTriangleShader.vert"));
frag.addSource(rs.get("TexturedTriangleShader.frag"));
CORRADE_INTERNAL_ASSERT_OUTPUT(Shader::compile({vert, frag}));
attachShaders({vert, frag});
CORRADE_INTERNAL_ASSERT_OUTPUT(link());
_colorUniform = uniformLocation("color");
setUniform(uniformLocation("textureData"), TextureLayer);
}
TexturedTriangleShader::TexturedTriangleShader() {
MAGNUM_ASSERT_VERSION_SUPPORTED(Version::GL330);
Utility::Resource rs("data");
Shader vert(Version::GL330, Shader::Type::Vertex);
vert.addSource(rs.get("TexturedTriangleShader.vert"));
CORRADE_INTERNAL_ASSERT_OUTPUT(vert.compile());
attachShader(vert);
Shader frag(Version::GL330, Shader::Type::Fragment);
frag.addSource(rs.get("TexturedTriangleShader.frag"));
CORRADE_INTERNAL_ASSERT_OUTPUT(frag.compile());
attachShader(frag);
CORRADE_INTERNAL_ASSERT_OUTPUT(link());
colorUniform = uniformLocation("color");
setUniform(uniformLocation("textureData"), TextureLayer);
}
MeshVisualizer::MeshVisualizer(const Flags flags): flags(flags), transformationProjectionMatrixUniform(0), viewportSizeUniform(1), colorUniform(2), wireframeColorUniform(3), wireframeWidthUniform(4), smoothnessUniform(5) {
#ifndef MAGNUM_TARGET_GLES
if(flags & Flag::Wireframe && !(flags & Flag::NoGeometryShader)) {
MAGNUM_ASSERT_VERSION_SUPPORTED(Version::GL320);
MAGNUM_ASSERT_EXTENSION_SUPPORTED(Extensions::GL::ARB::geometry_shader4);
}
#elif defined(MAGNUM_TARGET_GLES2)
if(flags & Flag::Wireframe)
MAGNUM_ASSERT_EXTENSION_SUPPORTED(Extensions::GL::OES::standard_derivatives);
#endif
Utility::Resource rs("MagnumShaders");
#ifndef MAGNUM_TARGET_GLES
const Version version = Context::current()->supportedVersion({Version::GL320, Version::GL310, Version::GL300, Version::GL210});
CORRADE_INTERNAL_ASSERT_OUTPUT(flags & Flag::NoGeometryShader || version >= Version::GL320);
#else
const Version version = Context::current()->supportedVersion({Version::GLES300, Version::GLES200});
#endif
Shader vert = Implementation::createCompatibilityShader(version, Shader::Type::Vertex);
vert.addSource(flags & Flag::Wireframe ? "#define WIREFRAME_RENDERING\n" : "")
.addSource(flags & Flag::NoGeometryShader ? "#define NO_GEOMETRY_SHADER\n" : "")
.addSource(rs.get("generic.glsl"))
.addSource(rs.get("MeshVisualizer.vert"));
CORRADE_INTERNAL_ASSERT_OUTPUT(vert.compile());
vert.compile();
attachShader(vert);
#ifndef MAGNUM_TARGET_GLES
if(flags & Flag::Wireframe && !(flags & Flag::NoGeometryShader)) {
Shader geom = Implementation::createCompatibilityShader(version, Shader::Type::Geometry);
geom.addSource(rs.get("MeshVisualizer.geom"));
CORRADE_INTERNAL_ASSERT_OUTPUT(geom.compile());
geom.compile();
attachShader(geom);
}
#endif
Shader frag = Implementation::createCompatibilityShader(version, Shader::Type::Fragment);
frag.addSource(flags & Flag::Wireframe ? "#define WIREFRAME_RENDERING\n" : "")
.addSource(flags & Flag::NoGeometryShader ? "#define NO_GEOMETRY_SHADER\n" : "")
.addSource(rs.get("MeshVisualizer.frag"));
CORRADE_INTERNAL_ASSERT_OUTPUT(frag.compile());
frag.compile();
attachShader(frag);
#ifndef MAGNUM_TARGET_GLES
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::explicit_attrib_location>(version))
#else
if(!Context::current()->isVersionSupported(Version::GLES300))
#endif
{
bindAttributeLocation(Position::Location, "position");
#ifndef MAGNUM_TARGET_GLES
if(!Context::current()->isVersionSupported(Version::GL310))
#endif
{
bindAttributeLocation(VertexIndex::Location, "vertexIndex");
}
}
CORRADE_INTERNAL_ASSERT_OUTPUT(link());
link();
#ifndef MAGNUM_TARGET_GLES
if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::explicit_uniform_location>(version))
#endif
{
transformationProjectionMatrixUniform = uniformLocation("transformationProjectionMatrix");
colorUniform = uniformLocation("color");
if(flags & Flag::Wireframe) {
wireframeColorUniform = uniformLocation("wireframeColor");
wireframeWidthUniform = uniformLocation("wireframeWidth");
smoothnessUniform = uniformLocation("smoothness");
if(!(flags & Flag::NoGeometryShader))
viewportSizeUniform = uniformLocation("viewportSize");
}
}
/* Set defaults in OpenGL ES (for desktop they are set in shader code itself) */
#ifdef MAGNUM_TARGET_GLES
setColor(Color3(1.0f));
if(flags & Flag::Wireframe) {
setWireframeColor(Color3(0.0f));
setWireframeWidth(1.0f);
setSmoothness(2.0f);
}
#endif
}
MeshVisualizer::MeshVisualizer(const Flags flags): flags(flags), transformationProjectionMatrixUniform(0), viewportSizeUniform(1), colorUniform(2), wireframeColorUniform(3), wireframeWidthUniform(4), smoothnessUniform(5) {
#ifndef MAGNUM_TARGET_GLES2
if(flags & Flag::Wireframe && !(flags & Flag::NoGeometryShader)) {
#ifndef MAGNUM_TARGET_GLES
MAGNUM_ASSERT_VERSION_SUPPORTED(Version::GL320);
MAGNUM_ASSERT_EXTENSION_SUPPORTED(Extensions::GL::ARB::geometry_shader4);
#elif !defined(MAGNUM_TARGET_WEBGL)
MAGNUM_ASSERT_EXTENSION_SUPPORTED(Extensions::GL::EXT::geometry_shader);
#endif
}
#else
if(flags & Flag::Wireframe)
MAGNUM_ASSERT_EXTENSION_SUPPORTED(Extensions::GL::OES::standard_derivatives);
#endif
#ifdef MAGNUM_BUILD_STATIC
/* Import resources on static build, if not already */
if(!Utility::Resource::hasGroup("MagnumShaders"))
importShaderResources();
#endif
Utility::Resource rs("MagnumShaders");
#ifndef MAGNUM_TARGET_GLES
const Version version = Context::current().supportedVersion({Version::GL320, Version::GL310, Version::GL300, Version::GL210});
CORRADE_INTERNAL_ASSERT(!flags || flags & Flag::NoGeometryShader || version >= Version::GL320);
#elif !defined(MAGNUM_TARGET_WEBGL)
const Version version = Context::current().supportedVersion({Version::GLES310, Version::GLES300, Version::GLES200});
CORRADE_INTERNAL_ASSERT(!flags || flags & Flag::NoGeometryShader || version >= Version::GLES310);
#else
const Version version = Context::current().supportedVersion({Version::GLES300, Version::GLES200});
#endif
Shader vert = Implementation::createCompatibilityShader(rs, version, Shader::Type::Vertex);
Shader frag = Implementation::createCompatibilityShader(rs, version, Shader::Type::Fragment);
vert.addSource(flags & Flag::Wireframe ? "#define WIREFRAME_RENDERING\n" : "")
.addSource(flags & Flag::NoGeometryShader ? "#define NO_GEOMETRY_SHADER\n" : "")
#ifdef MAGNUM_TARGET_WEBGL
.addSource("#define SUBSCRIPTING_WORKAROUND\n")
#elif defined(MAGNUM_TARGET_GLES2)
.addSource(Context::current().detectedDriver() & Context::DetectedDriver::ProbablyAngle ?
"#define SUBSCRIPTING_WORKAROUND\n" : "")
#endif
.addSource(rs.get("generic.glsl"))
.addSource(rs.get("MeshVisualizer.vert"));
frag.addSource(flags & Flag::Wireframe ? "#define WIREFRAME_RENDERING\n" : "")
.addSource(flags & Flag::NoGeometryShader ? "#define NO_GEOMETRY_SHADER\n" : "")
.addSource(rs.get("MeshVisualizer.frag"));
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
std::optional<Shader> geom;
if(flags & Flag::Wireframe && !(flags & Flag::NoGeometryShader)) {
geom = Implementation::createCompatibilityShader(rs, version, Shader::Type::Geometry);
geom->addSource(rs.get("MeshVisualizer.geom"));
}
#endif
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if(geom) CORRADE_INTERNAL_ASSERT_OUTPUT(Shader::compile({vert, *geom, frag}));
else
#endif
CORRADE_INTERNAL_ASSERT_OUTPUT(Shader::compile({vert, frag}));
attachShaders({vert, frag});
#if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
if(geom) attachShader(*geom);
#endif
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::explicit_attrib_location>(version))
#else
if(!Context::current().isVersionSupported(Version::GLES300))
#endif
{
bindAttributeLocation(Position::Location, "position");
#if !defined(MAGNUM_TARGET_GLES) || defined(MAGNUM_TARGET_GLES2)
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isVersionSupported(Version::GL310))
#endif
{
bindAttributeLocation(VertexIndex::Location, "vertexIndex");
}
#endif
}
CORRADE_INTERNAL_ASSERT_OUTPUT(link());
#ifndef MAGNUM_TARGET_GLES
if(!Context::current().isExtensionSupported<Extensions::GL::ARB::explicit_uniform_location>(version))
#endif
{
transformationProjectionMatrixUniform = uniformLocation("transformationProjectionMatrix");
colorUniform = uniformLocation("color");
if(flags & Flag::Wireframe) {
wireframeColorUniform = uniformLocation("wireframeColor");
wireframeWidthUniform = uniformLocation("wireframeWidth");
smoothnessUniform = uniformLocation("smoothness");
if(!(flags & Flag::NoGeometryShader))
viewportSizeUniform = uniformLocation("viewportSize");
}
}
/* Set defaults in OpenGL ES (for desktop they are set in shader code itself) */
#ifdef MAGNUM_TARGET_GLES
setColor(Color3(1.0f));
if(flags & Flag::Wireframe) {
setWireframeColor(Color3(0.0f));
setWireframeWidth(1.0f);
setSmoothness(2.0f);
}
#endif
}