|
|
|
@ -88,10 +88,10 @@ void StencilTwoSided::apply(State& state) const
|
|
|
|
|
{
|
|
|
|
|
// get "per-context" extensions
|
|
|
|
|
const unsigned int contextID = state.getContextID();
|
|
|
|
|
const Extensions* extensions = getExtensions(contextID,true);
|
|
|
|
|
const GL2Extensions* extensions = state.get<GL2Extensions>();
|
|
|
|
|
|
|
|
|
|
// use OpenGL 2.0 functions if available
|
|
|
|
|
if (extensions->isOpenGL20Supported())
|
|
|
|
|
if (extensions->isOpenGL20Supported)
|
|
|
|
|
{
|
|
|
|
|
// front face
|
|
|
|
|
extensions->glStencilOpSeparate(GL_FRONT, (GLenum)_sfail[FRONT],(GLenum)_zfail[FRONT],(GLenum)_zpass[FRONT]);
|
|
|
|
@ -107,7 +107,7 @@ void StencilTwoSided::apply(State& state) const
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// try to use GL_EXT_stencil_two_side extension
|
|
|
|
|
if (extensions->isStencilTwoSidedSupported())
|
|
|
|
|
if (extensions->isStencilTwoSidedSupported)
|
|
|
|
|
{
|
|
|
|
|
// enable two sided stenciling
|
|
|
|
|
glEnable(GL_STENCIL_TEST_TWO_SIDE);
|
|
|
|
@ -128,7 +128,7 @@ void StencilTwoSided::apply(State& state) const
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// try to use GL_ATI_separate_stencil extension
|
|
|
|
|
if (extensions->isSeparateStencilSupported())
|
|
|
|
|
if (extensions->isSeparateStencilSupported)
|
|
|
|
|
{
|
|
|
|
|
if( _writeMask[FRONT] != _writeMask[BACK] ||
|
|
|
|
|
_funcRef[FRONT] != _funcRef[BACK] ||
|
|
|
|
@ -156,132 +156,3 @@ void StencilTwoSided::apply(State& state) const
|
|
|
|
|
" not found (contextID " << contextID << "). OpenGL 2.0 or one of extensions\n"
|
|
|
|
|
" GL_EXT_stencil_two_side or GL_ATI_separate_stencil is required." << std::endl;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
typedef buffered_value< ref_ptr<StencilTwoSided::Extensions> > BufferedExtensions;
|
|
|
|
|
static BufferedExtensions s_extensions;
|
|
|
|
|
|
|
|
|
|
StencilTwoSided::Extensions* StencilTwoSided::getExtensions(unsigned int contextID,bool createIfNotInitalized)
|
|
|
|
|
{
|
|
|
|
|
if (!s_extensions[contextID] && createIfNotInitalized) s_extensions[contextID] = new Extensions(contextID);
|
|
|
|
|
return s_extensions[contextID].get();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void StencilTwoSided::setExtensions(unsigned int contextID,Extensions* extensions)
|
|
|
|
|
{
|
|
|
|
|
s_extensions[contextID] = extensions;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
StencilTwoSided::Extensions::Extensions(unsigned int contextID)
|
|
|
|
|
{
|
|
|
|
|
setupGLExtensions(contextID);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
StencilTwoSided::Extensions::Extensions(const Extensions& rhs):
|
|
|
|
|
Referenced()
|
|
|
|
|
{
|
|
|
|
|
_isStencilTwoSidedSupported = rhs._isStencilTwoSidedSupported;
|
|
|
|
|
_isOpenGL20Supported = rhs._isOpenGL20Supported;
|
|
|
|
|
_isSeparateStencilSupported = rhs._isSeparateStencilSupported;
|
|
|
|
|
_glActiveStencilFace = rhs._glActiveStencilFace;
|
|
|
|
|
_glStencilOpSeparate = rhs._glStencilOpSeparate;
|
|
|
|
|
_glStencilMaskSeparate = rhs._glStencilMaskSeparate;
|
|
|
|
|
_glStencilFuncSeparate = rhs._glStencilFuncSeparate;
|
|
|
|
|
_glStencilFuncSeparateATI = rhs._glStencilFuncSeparateATI;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void StencilTwoSided::Extensions::lowestCommonDenominator(const Extensions& rhs)
|
|
|
|
|
{
|
|
|
|
|
if (!rhs._isStencilTwoSidedSupported) _isStencilTwoSidedSupported = false;
|
|
|
|
|
if (!rhs._isOpenGL20Supported) _isOpenGL20Supported = false;
|
|
|
|
|
if (!rhs._isSeparateStencilSupported) _isSeparateStencilSupported = false;
|
|
|
|
|
|
|
|
|
|
if (!rhs._glActiveStencilFace) _glActiveStencilFace = NULL;
|
|
|
|
|
if (!rhs._glStencilOpSeparate) _glStencilOpSeparate = NULL;
|
|
|
|
|
if (!rhs._glStencilMaskSeparate) _glStencilMaskSeparate = NULL;
|
|
|
|
|
if (!rhs._glStencilFuncSeparate) _glStencilFuncSeparate = NULL;
|
|
|
|
|
if (!rhs._glStencilFuncSeparateATI) _glStencilFuncSeparateATI = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void StencilTwoSided::Extensions::setupGLExtensions(unsigned int contextID)
|
|
|
|
|
{
|
|
|
|
|
// extension support
|
|
|
|
|
_isStencilTwoSidedSupported = isGLExtensionSupported(contextID, "GL_EXT_stencil_two_side");
|
|
|
|
|
_isOpenGL20Supported = getGLVersionNumber() >= 2.0;
|
|
|
|
|
_isSeparateStencilSupported = isGLExtensionSupported(contextID, "GL_ATI_separate_stencil");
|
|
|
|
|
|
|
|
|
|
// function pointers
|
|
|
|
|
setGLExtensionFuncPtr(_glActiveStencilFace, "glActiveStencilFaceEXT");
|
|
|
|
|
setGLExtensionFuncPtr(_glStencilOpSeparate, "glStencilOpSeparate", "glStencilOpSeparateATI");
|
|
|
|
|
setGLExtensionFuncPtr(_glStencilMaskSeparate, "glStencilMaskSeparate");
|
|
|
|
|
setGLExtensionFuncPtr(_glStencilFuncSeparate, "glStencilFuncSeparate");
|
|
|
|
|
setGLExtensionFuncPtr(_glStencilFuncSeparateATI, "glStencilFuncSeparateATI");
|
|
|
|
|
|
|
|
|
|
// protect against buggy drivers (maybe not necessary)
|
|
|
|
|
if (!_glActiveStencilFace) _isStencilTwoSidedSupported = false;
|
|
|
|
|
if (!_glStencilOpSeparate) { _isOpenGL20Supported = false; _isSeparateStencilSupported = false; }
|
|
|
|
|
if (!_glStencilMaskSeparate) _isOpenGL20Supported = false;
|
|
|
|
|
if (!_glStencilFuncSeparate) _isOpenGL20Supported = false;
|
|
|
|
|
if (!_glStencilFuncSeparateATI) _isSeparateStencilSupported = false;
|
|
|
|
|
|
|
|
|
|
// notify
|
|
|
|
|
if( _isOpenGL20Supported )
|
|
|
|
|
{
|
|
|
|
|
OSG_INFO << "StencilTwoSided is going to use OpenGL 2.0 API (contextID " << contextID << ")." << std::endl;
|
|
|
|
|
}
|
|
|
|
|
else if( _isStencilTwoSidedSupported )
|
|
|
|
|
{
|
|
|
|
|
OSG_INFO << "StencilTwoSided is going to use GL_EXT_stencil_two_side extension (contextID " << contextID << ")." << std::endl;
|
|
|
|
|
}
|
|
|
|
|
else if( _isSeparateStencilSupported )
|
|
|
|
|
{
|
|
|
|
|
OSG_INFO << "StencilTwoSided is going to use GL_ATI_separate_stencil extension (contextID " << contextID << ")." << std::endl;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
OSG_INFO << "StencilTwoSided did not found required graphics capabilities\n"
|
|
|
|
|
" (contextID " << contextID << "). OpenGL 2.0 or one of extensions\n"
|
|
|
|
|
" GL_EXT_stencil_two_side or GL_ATI_separate_stencil is required." << std::endl;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void StencilTwoSided::Extensions::glActiveStencilFace(GLenum face) const
|
|
|
|
|
{
|
|
|
|
|
if (_isStencilTwoSidedSupported)
|
|
|
|
|
{
|
|
|
|
|
_glActiveStencilFace(face);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void StencilTwoSided::Extensions::glStencilOpSeparate(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass) const
|
|
|
|
|
{
|
|
|
|
|
if (_isOpenGL20Supported || _isSeparateStencilSupported)
|
|
|
|
|
{
|
|
|
|
|
_glStencilOpSeparate(face, sfail, dpfail, dppass);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void StencilTwoSided::Extensions::glStencilMaskSeparate(GLenum face, GLuint mask) const
|
|
|
|
|
{
|
|
|
|
|
if (_isOpenGL20Supported)
|
|
|
|
|
{
|
|
|
|
|
_glStencilMaskSeparate(face, mask);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void StencilTwoSided::Extensions::glStencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask) const
|
|
|
|
|
{
|
|
|
|
|
if (_isOpenGL20Supported)
|
|
|
|
|
{
|
|
|
|
|
_glStencilFuncSeparate(face, func, ref, mask);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void StencilTwoSided::Extensions::glStencilFuncSeparateATI(GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask) const
|
|
|
|
|
{
|
|
|
|
|
if (_isSeparateStencilSupported)
|
|
|
|
|
{
|
|
|
|
|
_glStencilFuncSeparateATI(frontfunc, backfunc, ref, mask);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|