FGFS-4.1/OpenSceneGraph
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Added extension support checks

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This commit is contained in:
Robert Osfield 2018-01-08 10:14:13 +00:00
parent 818dee31d8
commit f866836d60
1 changed files with 7 additions and 1 deletions
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8
src/osg/Sampler.cpp
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@ -144,10 +144,12 @@ void Sampler::setBorderColor(const Vec4d& color) { _borderColor = color; _PCdirt
void Sampler::compileGLObjects(State& state) const
{
const GLExtensions* extensions = state.get<GLExtensions>();
if (extensions->glGenSamplers==0) return;
unsigned int contextID = state.getContextID();
if(_PCdirtyflags[contextID])
{
const GLExtensions* extensions = state.get<GLExtensions>();
GLuint samplerobject = _PCsampler[contextID];
if(samplerobject==0)
{
@ -237,6 +239,8 @@ void Sampler::compileGLObjects(State& state) const
/** bind SamplerObject **/
void Sampler::apply(State&state) const
{
if (state.get<GLExtensions>()->glGenSamplers==0) return;
unsigned int contextID = state.getContextID();
if( _PCdirtyflags[contextID] )
compileGLObjects(state);
@ -248,6 +252,8 @@ void Sampler::releaseGLObjects(State* state) const
{
if(state)
{
if (state->get<GLExtensions>()->glDeleteSamplers==0) return;
unsigned int contextID=state->getContextID();
state->get<GLExtensions>()->glDeleteSamplers(1,&_PCsampler[contextID]);
}