void
LayerDrawable::drawImplementation(osg::RenderInfo& ri) const
{
DrawState& ds = *_drawState;
// Make sure the draw state is up to date:
ds.refresh(ri);
if (ds._layerOrderUL >= 0)
{
ds._ext->glUniform1i(ds._layerOrderUL, (GLint)_order);
}
if (_layer)
{
if (ds._layerUidUL >= 0)
ds._ext->glUniform1i(ds._layerUidUL, (GLint)_layer->getUID());
if (ds._layerOpacityUL >= 0 && _imageLayer)
ds._ext->glUniform1f(ds._layerOpacityUL, (GLfloat)_imageLayer->getOpacity());
if (ds._layerMinRangeUL >= 0 && _imageLayer)
ds._ext->glUniform1f(ds._layerMinRangeUL, (GLfloat)_imageLayer->getMinVisibleRange());
if (ds._layerMaxRangeUL >= 0 && _imageLayer)
ds._ext->glUniform1f(ds._layerMaxRangeUL, (GLfloat)_imageLayer->getMaxVisibleRange());
}
else
{
if (ds._layerUidUL >= 0)
ds._ext->glUniform1i(ds._layerUidUL, (GLint)-1);
if (ds._layerOpacityUL >= 0)
ds._ext->glUniform1f(ds._layerOpacityUL, (GLfloat)1.0f);
if (ds._layerMinRangeUL >= 0)
ds._ext->glUniform1f(ds._layerMinRangeUL, (GLfloat)0.0f);
if (ds._layerMaxRangeUL >= 0)
ds._ext->glUniform1f(ds._layerMaxRangeUL, (GLfloat)FLT_MAX);
}
for (DrawTileCommands::const_iterator tile = _tiles.begin(); tile != _tiles.end(); ++tile)
{
tile->draw(ri, ds, 0L);
}
// If set, dirty all OSG state to prevent any leakage - this is sometimes
// necessary when doing custom OpenGL within a Drawable.
if (_clearOsgState)
{
ri.getState()->dirtyAllAttributes();
ri.getState()->dirtyAllModes();
ri.getState()->dirtyAllVertexArrays();
// unbind local buffers when finished.
ds._ext->glBindBuffer(GL_ARRAY_BUFFER_ARB,0);
ds._ext->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER_ARB,0);
// gw: no need to do this, in fact it will cause positional attributes
// (light clip planes and lights) to immediately be reapplied under the
// current MVM, which will by definition be wrong!)
//ri.getState()->apply();
}
}
void
LayerDrawable::drawImplementation(osg::RenderInfo& ri) const
{
//OE_INFO << LC << (_layer ? _layer->getName() : "[empty]") << " tiles=" << _tiles.size() << std::endl;
// Get this context's state values:
PerContextDrawState& ds = _drawState->getPCDS(ri.getContextID());
ds.refresh(ri, _drawState->_bindings);
if (ds._layerUidUL >= 0)
{
GLint uid = _layer ? (GLint)_layer->getUID() : (GLint)-1;
ds._ext->glUniform1i(ds._layerUidUL, uid);
}
else
{
// This just means that the fragment shader for this layer doesn't use oe_layer_uid
}
for (DrawTileCommands::const_iterator tile = _tiles.begin(); tile != _tiles.end(); ++tile)
{
tile->draw(ri, *_drawState, 0L);
}
// If set, dirty all OSG state to prevent any leakage - this is sometimes
// necessary when doing custom OpenGL within a Drawable.
if (_clearOsgState)
{
// Dirty the texture attributes so OSG can properly reset them
// NOTE: cannot call state.dirtyAllAttributes, because that would invalidate
// positional state like light sources!
reinterpret_cast<StateEx*>(ri.getState())->dirtyAllTextureAttributes();
// NOTE: this is a NOOP in OSG 3.5.x, but not in 3.4.x ... Later we will need to
// revisit whether to call disableAllVertexArrays() in 3.5.x instead.
ri.getState()->dirtyAllVertexArrays();
// unbind local buffers when finished.
ds._ext->glBindBuffer(GL_ARRAY_BUFFER_ARB,0);
ds._ext->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER_ARB,0);
// gw: no need to do this, in fact it will cause positional attributes
// (light clip planes and lights) to immediately be reapplied under the
// current MVM, which will by definition be wrong!)
//ri.getState()->apply();
}
}