Some cleanup for IdentityMatrix.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@1526 dfc29bdd-3216-0410-991c-e03cc46cb475

include/matrix4.h

@@ -1733,7 +1733,7 @@ namespace core
 	//! Typedef for f32 matrix
 	typedef CMatrix4<f32> matrix4;
 	//! global const identity matrix
-	const matrix4 IdentityMatrix(matrix4::EM4CONST_IDENTITY);
+	extern const matrix4 IdentityMatrix;
 
 } // end namespace core
 } // end namespace irr

source/Irrlicht/CD3D8Driver.cpp

@@ -61,7 +61,6 @@ CD3D8Driver::CD3D8Driver(const core::dimension2d<s32>& screenSize, HWND window,
 }
 
 
-
 //! destructor
 CD3D8Driver::~CD3D8Driver()
 {
@@ -574,11 +573,8 @@ void CD3D8Driver::setTransform(E_TRANSFORMATION_STATE state, const core::matrix4
 	case ETS_TEXTURE_2:
 	case ETS_TEXTURE_3:
 		pID3DDevice->SetTextureStageState( state - ETS_TEXTURE_0, D3DTSS_TEXTURETRANSFORMFLAGS, D3DTTFF_COUNT2 );
-		if (mat.isIdentity())
-			pID3DDevice->SetTransform( (D3DTRANSFORMSTATETYPE)(D3DTS_TEXTURE0+ ( state - ETS_TEXTURE_0 )), &UnitMatrixD3D8 );
-		else
-			pID3DDevice->SetTransform((D3DTRANSFORMSTATETYPE)(D3DTS_TEXTURE0+ ( state - ETS_TEXTURE_0 )),
-				(D3DMATRIX*)((void*)mat.pointer()));
+		pID3DDevice->SetTransform((D3DTRANSFORMSTATETYPE)(D3DTS_TEXTURE0+ ( state - ETS_TEXTURE_0 )),
+			(D3DMATRIX*)((void*)mat.pointer()));
 		break;
 	case ETS_COUNT:
 		break;
@@ -588,7 +584,6 @@ void CD3D8Driver::setTransform(E_TRANSFORMATION_STATE state, const core::matrix4
 }
 
 
-
 //! sets the current Texture
 bool CD3D8Driver::setTexture(s32 stage, const video::ITexture* texture)
 {
@@ -1542,10 +1537,9 @@ void CD3D8Driver::setRenderStatesStencilFillMode(bool alpha)
 {
 	if (CurrentRenderMode != ERM_STENCIL_FILL || Transformation3DChanged)
 	{
-		core::matrix4 mat;
-		pID3DDevice->SetTransform(D3DTS_VIEW, (D3DMATRIX*)((void*)mat.pointer()));
-		pID3DDevice->SetTransform(D3DTS_WORLD, (D3DMATRIX*)((void*)mat.pointer()));
-		pID3DDevice->SetTransform(D3DTS_PROJECTION, (D3DMATRIX*)((void*)mat.pointer()));
+		pID3DDevice->SetTransform(D3DTS_VIEW, &UnitMatrixD3D8);
+		pID3DDevice->SetTransform(D3DTS_WORLD, &UnitMatrixD3D8);
+		pID3DDevice->SetTransform(D3DTS_PROJECTION, &UnitMatrixD3D8);
 
 		pID3DDevice->SetRenderState(D3DRS_ZENABLE, FALSE);
 		pID3DDevice->SetRenderState(D3DRS_LIGHTING, FALSE);
@@ -1604,10 +1598,9 @@ void CD3D8Driver::setRenderStates2DMode(bool alpha, bool texture, bool alphaChan
 
 	if (CurrentRenderMode != ERM_2D || Transformation3DChanged)
 	{
-		core::matrix4 mat;
-		pID3DDevice->SetTransform(D3DTS_VIEW, (D3DMATRIX*)((void*)mat.pointer()));
-		pID3DDevice->SetTransform(D3DTS_WORLD, (D3DMATRIX*)((void*)mat.pointer()));
-		pID3DDevice->SetTransform(D3DTS_PROJECTION, (D3DMATRIX*)((void*)mat.pointer()));
+		pID3DDevice->SetTransform(D3DTS_VIEW, &UnitMatrixD3D8);
+		pID3DDevice->SetTransform(D3DTS_WORLD, &UnitMatrixD3D8);
+		pID3DDevice->SetTransform(D3DTS_PROJECTION, &UnitMatrixD3D8);
 
 		pID3DDevice->SetRenderState(D3DRS_ZENABLE, FALSE);
 		//pID3DDevice->SetRenderState(D3DRS_SHADEMODE, D3DSHADE_FLAT);

source/Irrlicht/CD3D9Driver.cpp

@@ -617,11 +617,8 @@ void CD3D9Driver::setTransform(E_TRANSFORMATION_STATE state, const core::matrix4
 	case ETS_TEXTURE_2:
 	case ETS_TEXTURE_3:
 		pID3DDevice->SetTextureStageState( state - ETS_TEXTURE_0, D3DTSS_TEXTURETRANSFORMFLAGS, D3DTTFF_COUNT2 );
-		if (mat.isIdentity())
-			pID3DDevice->SetTransform( (D3DTRANSFORMSTATETYPE)(D3DTS_TEXTURE0+ ( state - ETS_TEXTURE_0 )), &UnitMatrixD3D9 );
-		else
-			pID3DDevice->SetTransform((D3DTRANSFORMSTATETYPE)(D3DTS_TEXTURE0+ ( state - ETS_TEXTURE_0 )),
-				(D3DMATRIX*)((void*)mat.pointer()));
+		pID3DDevice->SetTransform((D3DTRANSFORMSTATETYPE)(D3DTS_TEXTURE0+ ( state - ETS_TEXTURE_0 )),
+			(D3DMATRIX*)((void*)mat.pointer()));
 		break;
 	case ETS_COUNT:
 		break;
@@ -631,7 +628,6 @@ void CD3D9Driver::setTransform(E_TRANSFORMATION_STATE state, const core::matrix4
 }
 
 
-
 //! sets the current Texture
 bool CD3D9Driver::setTexture(s32 stage, const video::ITexture* texture)
 {
@@ -1875,9 +1871,9 @@ void CD3D9Driver::setRenderStatesStencilFillMode(bool alpha)
 	if (CurrentRenderMode != ERM_STENCIL_FILL || Transformation3DChanged)
 	{
 		core::matrix4 mat;
-		pID3DDevice->SetTransform(D3DTS_VIEW, (D3DMATRIX*)((void*)mat.pointer()));
-		pID3DDevice->SetTransform(D3DTS_WORLD, (D3DMATRIX*)((void*)mat.pointer()));
-		pID3DDevice->SetTransform(D3DTS_PROJECTION, (D3DMATRIX*)((void*)mat.pointer()));
+		pID3DDevice->SetTransform(D3DTS_VIEW, &UnitMatrixD3D9);
+		pID3DDevice->SetTransform(D3DTS_WORLD, &UnitMatrixD3D9);
+		pID3DDevice->SetTransform(D3DTS_PROJECTION, &UnitMatrixD3D9);
 
 		pID3DDevice->SetRenderState(D3DRS_ZENABLE, FALSE);
 		pID3DDevice->SetRenderState(D3DRS_LIGHTING, FALSE);
@@ -1964,10 +1960,9 @@ void CD3D9Driver::setRenderStates2DMode(bool alpha, bool texture, bool alphaChan
 			pID3DDevice->SetTransform( D3DTS_TEXTURE0, &UnitMatrixD3D9 );
 		}
 
-		core::matrix4 mat;
-		pID3DDevice->SetTransform(D3DTS_VIEW, (D3DMATRIX*)((void*)mat.pointer()));
-		pID3DDevice->SetTransform(D3DTS_WORLD, (D3DMATRIX*)((void*)mat.pointer()));
-		pID3DDevice->SetTransform(D3DTS_PROJECTION, (D3DMATRIX*)((void*)mat.pointer()));
+		pID3DDevice->SetTransform(D3DTS_VIEW, &UnitMatrixD3D9);
+		pID3DDevice->SetTransform(D3DTS_WORLD, &UnitMatrixD3D9);
+		pID3DDevice->SetTransform(D3DTS_PROJECTION, &UnitMatrixD3D9);
 
 		Transformation3DChanged = false;
 	}

source/Irrlicht/Irrlicht.cpp

@@ -39,6 +39,10 @@ namespace irr
 		return createDeviceEx(p);
 	}
 
+namespace core
+{
+	const matrix4 IdentityMatrix(matrix4::EM4CONST_IDENTITY);
+}
 } // end namespace irr