hla: Provide a directly property based api for property data element.

[simgear.git] / simgear / scene / util / StateAttributeFactory.cxx

diff --git a/simgear/scene/util/StateAttributeFactory.cxx b/simgear/scene/util/StateAttributeFactory.cxx
index 3071ef3efe1bb16a3e3b451ebee1a18fca46704f..25a0a57622860f841105ebd9985de3613682c220 100644 (file)
--- a/simgear/scene/util/StateAttributeFactory.cxx
+++ b/simgear/scene/util/StateAttributeFactory.cxx
@@ -1,7 +1,36 @@
-#include <OpenThreads/ScopedLock>
-
+/* -*-c++-*-
+ *
+ * Copyright (C) 2007 Tim Moore
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ */
 #include "StateAttributeFactory.hxx"
 
+#include <osg/AlphaFunc>
+#include <osg/Array>
+#include <osg/BlendFunc>
+#include <osg/CullFace>
+#include <osg/Depth>
+#include <osg/ShadeModel>
+#include <osg/Texture2D>
+#include <osg/TexEnv>
+
+#include <osg/Image>
+
 using namespace osg;
 
 namespace simgear
@@ -10,7 +39,7 @@ StateAttributeFactory::StateAttributeFactory()
 {
     _standardAlphaFunc = new AlphaFunc;
     _standardAlphaFunc->setFunction(osg::AlphaFunc::GREATER);
-    _standardAlphaFunc->setReferenceValue(0.01);
+    _standardAlphaFunc->setReferenceValue(0.01f);
     _standardAlphaFunc->setDataVariance(Object::STATIC);
     _smooth = new ShadeModel;
     _smooth->setMode(ShadeModel::SMOOTH);
@@ -24,17 +53,37 @@ StateAttributeFactory::StateAttributeFactory()
     _standardTexEnv = new TexEnv;
     _standardTexEnv->setMode(TexEnv::MODULATE);
     _standardTexEnv->setDataVariance(Object::STATIC);
+    osg::Image *dummyImage = new osg::Image;
+    dummyImage->allocateImage(1, 1, 1, GL_LUMINANCE_ALPHA,
+                              GL_UNSIGNED_BYTE);
+    unsigned char* imageBytes = dummyImage->data(0, 0);
+    imageBytes[0] = 255;
+    imageBytes[1] = 255;
+    _whiteTexture = new osg::Texture2D;
+    _whiteTexture->setImage(dummyImage);
+    _whiteTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::REPEAT);
+    _whiteTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::REPEAT);
+    _whiteTexture->setDataVariance(osg::Object::STATIC);
+    // And now the transparent texture
+    dummyImage = new osg::Image;
+    dummyImage->allocateImage(1, 1, 1, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE);
+    imageBytes = dummyImage->data(0, 0);
+    imageBytes[0] = 255;
+    imageBytes[1] = 0;
+    _transparentTexture = new osg::Texture2D;
+    _transparentTexture->setImage(dummyImage);
+    _transparentTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::REPEAT);
+    _transparentTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::REPEAT);
+    _transparentTexture->setDataVariance(osg::Object::STATIC);
+    _white = new Vec4Array(1);
+    (*_white)[0].set(1.0f, 1.0f, 1.0f, 1.0f);
+    _white->setDataVariance(Object::STATIC);
+    _cullFaceFront = new CullFace(CullFace::FRONT);
+    _cullFaceFront->setDataVariance(Object::STATIC);
+    _cullFaceBack = new CullFace(CullFace::BACK);
+    _cullFaceBack->setDataVariance(Object::STATIC);
+    _depthWritesDisabled = new Depth(Depth::LESS, 0.0, 1.0, false);
+    _depthWritesDisabled->setDataVariance(Object::STATIC);
 }
 
-osg::ref_ptr<StateAttributeFactory> StateAttributeFactory::_theInstance;
-OpenThreads::Mutex StateAttributeFactory::_instanceMutex;
-
-StateAttributeFactory* StateAttributeFactory::instance()
-{
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_instanceMutex);
-    if (!_theInstance.valid()) {
-        _theInstance = new StateAttributeFactory;
-    }
-    return _theInstance.get();
-}
 }