Merged revision 4534-4578 from 1.8 branch:

- Fix crash in SoftwareDriver2 when Material was EMT_DETAIL_MAP but texture[1] was not set (Thanks for fix by chronologicaldot)
- Fix issue in CAnimatedMeshSceneNode::clone which cause crash. (reported and fixed by luthyr)

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4579 dfc29bdd-3216-0410-991c-e03cc46cb475

changes.txt

@@ -26,6 +26,11 @@ Changes in 1.9 (not yet released)
 --------------------------
 Changes in 1.8.1 (not yet released)
 
+ - Fix crash in SoftwareDriver2 when Material was EMT_DETAIL_MAP but texture[1] was not set (Thanks for fix by chronologicaldot)
+ - Fix buffer overrun in x-loader (Thanks for fix by Otaka)
+ - Fix cursor visibility update problem under Windows 8 (Thanks @luthyr for reporting)
+ - Fix irredit links in loadScene/saveScene docs.
+ - Fix issue in CAnimatedMeshSceneNode::clone which cause crash. (reported and fixed by luthyr)
  - Fix compiling errors for c++ builder (thx @Greatwolf for many patches and @cfanderek for reminding)
  - Initialized IColladaMeshWriter::GeometryWriting which was uninitialized.
  - Fix linker trouble with irr::core::equalsByUl when compiling Irrlicht as managed code (thx @  Memorial76 for a report + testcase)
@@ -54,7 +59,7 @@ Changes in 1.8 (7.11.2012)
 
  - Add another saveScene overload which allows to pass in a user-created XMLWriter. Patch suggested by eversilver.
 
- - quaternion conversions to and from matrix4 no longer invert rotations. 
+ - quaternion conversions to and from matrix4 no longer invert rotations.
    To test if your code was affected by this you can set IRR_TEST_BROKEN_QUATERNION_USE in quaternion.h and try to compile your application.
    Then on all compile-errors when you pass the matrix to the quaternion you can replace the matrix transposed matrix.
    For all errors you get on getMatrix() you can use quaternion::getMatrix_transposed instead.
@@ -62,13 +67,13 @@ Changes in 1.8 (7.11.2012)
  - CGUIEnvironment::loadGui - loading a gui into a target-element no longer messes up when the gui-file contained guienvironment serialization.
 
  - Colladawriter now exports materials per node when those are used in Irrlicht
- 
+
  - Colladawriter now writing matrices for node transformations as old solution did not work with CDummyTransformationSceneNode's.
- 
+
  - Colladawriter no longer create an extra node for the scenemanger as <visual_scene> has that job in Collada.
- 
+
  - Colladwriter no longer makes all Scenenodes children of ambient-light as that can be parallel on the same layer instead.
- 
+
  - Colladareader now creates the ambient-light correct instead of creating a point-light for it.
 
  - Add new parameter to array reallocate function. This prevents a reallocation in case the array would become smaller. As the reallocation operation is quite time consuming, this can be avoided on request now, on the expense of more memory consumption.

source/Irrlicht/CAnimatedMeshSceneNode.cpp

@@ -1098,9 +1098,12 @@ ISceneNode* CAnimatedMeshSceneNode::clone(ISceneNode* newParent, ISceneManager*
 	newNode->Looping = Looping;
 	newNode->ReadOnlyMaterials = ReadOnlyMaterials;
 	newNode->LoopCallBack = LoopCallBack;
+	if (newNode->LoopCallBack)
+		newNode->LoopCallBack->grab();	
 	newNode->PassCount = PassCount;
 	newNode->Shadow = Shadow;
-	newNode->Shadow->grab();
+	if (newNode->Shadow)
+		newNode->Shadow->grab();
 	newNode->JointChildSceneNodes = JointChildSceneNodes;
 	newNode->PretransitingSave = PretransitingSave;
 	newNode->RenderFromIdentity = RenderFromIdentity;

source/Irrlicht/CSoftwareDriver2.cpp

@@ -543,7 +543,8 @@ void CBurningVideoDriver::setCurrentShader()
 			break;
 
 		case EMT_DETAIL_MAP:
-			shader = ETR_TEXTURE_GOURAUD_DETAIL_MAP;
+			if ( texture1 )
+				shader = ETR_TEXTURE_GOURAUD_DETAIL_MAP;
 			break;
 
 		case EMT_SPHERE_MAP: