FGFS-4.1/OpenSceneGraph
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Moved local Extensions objects to GL2Extensions

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git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14582 16af8721-9629-0410-8352-f15c8da7e697
This commit is contained in:
Robert Osfield
2014-12-09 10:37:09 +00:00
parent cceee38727
commit ec4f898bce
9 changed files with 57 additions and 183 deletions
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72
src/osg/BlendColor.cpp
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@@ -35,78 +35,12 @@ BlendColor::~BlendColor()
void BlendColor::apply(State& state) const
{
// get the contextID (user defined ID of 0 upwards) for the
// current OpenGL context.
const unsigned int contextID = state.getContextID();
const Extensions* extensions = getExtensions(contextID,true);
if (!extensions->isBlendColorSupported())
const GL2Extensions* extensions = state.get<GL2Extensions>();
if (!extensions->isBlendColorSupported)
{
OSG_WARN<<"Warning: BlendColor::apply(..) failed, BlendColor is not support by OpenGL driver."<<std::endl;
return;
}
extensions->glBlendColor(_constantColor[0], _constantColor[1],
_constantColor[2], _constantColor[3]);
extensions->glBlendColor(_constantColor[0], _constantColor[1], _constantColor[2], _constantColor[3]);
}
typedef buffered_value< ref_ptr<BlendColor::Extensions> > BufferedExtensions;
static BufferedExtensions s_extensions;
BlendColor::Extensions* BlendColor::getExtensions(unsigned int contextID,bool createIfNotInitalized)
{
if (!s_extensions[contextID] && createIfNotInitalized) s_extensions[contextID] = new Extensions(contextID);
return s_extensions[contextID].get();
}
void BlendColor::setExtensions(unsigned int contextID,Extensions* extensions)
{
s_extensions[contextID] = extensions;
}
BlendColor::Extensions::Extensions(unsigned int contextID)
{
setupGLExtensions(contextID);
}
BlendColor::Extensions::Extensions(const Extensions& rhs):
Referenced()
{
_isBlendColorSupported = rhs._isBlendColorSupported;
_glBlendColor = rhs._glBlendColor;
}
void BlendColor::Extensions::lowestCommonDenominator(const Extensions& rhs)
{
if (!rhs._isBlendColorSupported) _isBlendColorSupported = false;
if (!rhs._glBlendColor) _glBlendColor = 0;
}
void BlendColor::Extensions::setupGLExtensions(unsigned int contextID)
{
_isBlendColorSupported = OSG_GLES2_FEATURES || OSG_GL3_FEATURES ||
isGLExtensionSupported(contextID,"GL_EXT_blend_color") ||
strncmp((const char*)glGetString(GL_VERSION),"1.2",3)>=0;
setGLExtensionFuncPtr(_glBlendColor, "glBlendColor", "glBlendColorEXT");
}
void BlendColor::Extensions::glBlendColor(GLclampf red , GLclampf green , GLclampf blue , GLclampf alpha) const
{
if (_glBlendColor)
{
_glBlendColor(red, green, blue, alpha);
}
else
{
OSG_WARN<<"Error: glBlendColor not supported by OpenGL driver"<<std::endl;
}
}