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Canvas: Redraw if OpenVG has been initialized.

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If OpenVG/ShivaVG is initialized nothing is drawn in the same
frame, therefore we need to draw another frame to ensure all
paths are rendered correctly.
This commit is contained in:
Thomas Geymayer 2012-09-25 21:34:37 +02:00
parent a10638c6b4
commit 16d73f4012
3 changed files with 17 additions and 5 deletions
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13
src/Canvas/canvas.cxx
View file

@ -21,6 +21,7 @@
#include <Canvas/MouseEvent.hxx>
#include <Canvas/property_helper.hxx>
#include <Main/fg_props.hxx>
#include <Main/globals.hxx>
#include <Viewer/CameraGroup.hxx>
#include <Viewer/renderer.hxx>
@ -48,7 +49,17 @@ class Canvas::DrawCallback:
virtual void operator()(osg::RenderInfo& renderInfo) const
{
_canvas->_render_dirty = false;
const std::string VG_SIGNAL = "/sim/signals/vg-initialized";
if( fgGetBool(VG_SIGNAL) )
{
fgSetBool(VG_SIGNAL, false);
// If OpenVG has been initialized we need to redraw the frame, because
// initializing has happened instead of rendering
_canvas->_render_dirty = true;
}
else
_canvas->_render_dirty = false;
}
protected:

7
src/Canvas/elements/path.cxx
View file

@ -18,6 +18,7 @@
#include "path.hxx"
#include <Canvas/property_helper.hxx>
#include <Main/fg_props.hxx>
#include <vg/openvg.h>
@ -31,8 +32,7 @@ namespace canvas
typedef std::vector<VGubyte> CmdList;
typedef std::vector<VGfloat> CoordList;
class Path;
class PathDrawable:
class Path::PathDrawable:
public osg::Drawable
{
public:
@ -170,6 +170,7 @@ namespace canvas
vgCreateContextSH(vp[2], vp[3]);
_vg_initialized = true;
fgSetBool("/sim/signals/vg-initialized", true);
return;
}
@ -350,7 +351,7 @@ namespace canvas
};
};
bool PathDrawable::_vg_initialized = false;
bool Path::PathDrawable::_vg_initialized = false;
//----------------------------------------------------------------------------
Path::Path(SGPropertyNode_ptr node, const Style& parent_style):

2
src/Canvas/elements/path.hxx
View file

@ -23,7 +23,6 @@
namespace canvas
{
class PathDrawable;
class Path:
public Element
{
@ -41,6 +40,7 @@ namespace canvas
COORDS = CMDS << 1
};
class PathDrawable;
osg::ref_ptr<PathDrawable> _path;
virtual void childRemoved(SGPropertyNode * child);