use new Martix4 function which use temporary array

- avoid 'undefined behaviour' which did work for most cases...

src/org/oscim/layers/tile/TileRenderer.java

@@ -31,7 +31,6 @@ import org.oscim.utils.Matrix4;
 import org.oscim.utils.quadtree.QuadTree;
 
 import android.opengl.GLES20;
-
 /**
  * This class is for rendering the Line- and PolygonLayers of visible MapTiles.
  * For visible tiles that do not have data available yet its parent in children
@@ -58,10 +57,12 @@ public class TileRenderer {
 		mMatrices = m;
 		mFaded = fade;
 
-		mProjMatrix.copy(m.viewproj);
+		mProjMatrix.copy(m.proj);
-		// discard z projection from tilt
+		// discard depth projection from tilt, we use depth buffer
+		// for clipping
 		mProjMatrix.setValue(10, 0);
 		mProjMatrix.setValue(14, 0);
+		mProjMatrix.multiplyRhs(m.view);
 
 		GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT);
 
@@ -141,7 +142,7 @@ public class TileRenderer {
 		Matrices m = mMatrices;
 		m.mvp.setTransScale(x, y, (float) (scale / GLRenderer.COORD_SCALE));
 
-		m.mvp.multiplyMM(mProjMatrix, m.mvp);
+		m.mvp.multiplyLhs(mProjMatrix);
 
 		// set depth offset (used for clipping to tile boundaries)
 		GLES20.glPolygonOffset(0, mOffsetCnt++);

src/org/oscim/renderer/RenderLayer.java

@@ -100,7 +100,7 @@ public abstract class RenderLayer {
 		matrices.mvp.setTransScale((float) (x * tileScale), (float) (y * tileScale),
 				(float) ((position.scale / oPos.scale) / GLRenderer.COORD_SCALE));
 
-		matrices.mvp.multiplyMM(project ? matrices.viewproj : matrices.view, matrices.mvp);
+		matrices.mvp.multiplyLhs(project ? matrices.viewproj : matrices.view);
 	}
 
 	/**

src/org/oscim/renderer/layers/CustomRenderLayer.java

@@ -111,10 +111,7 @@ public class CustomRenderLayer extends RenderLayer {
 		float ratio = 1f / mMapView.getWidth();
 
 		m.mvp.setScale(ratio, ratio, 1);
-		m.mvp.multiplyMM(m.proj, m.mvp);
+		m.mvp.multiplyLhs(m.proj);
-
-
-//		setMatrix(pos, m);
 		m.mvp.setAsUniform(hMatrixPosition);
 
 		// Draw the triangle

src/org/oscim/renderer/layers/ExtrusionRenderLayer.java

@@ -333,7 +333,7 @@ public class ExtrusionRenderLayer extends RenderLayer {
 		// scale height
 		m.mvp.setValue(10, scale / 10);
 
-		m.mvp.multiplyMM(m.viewproj, m.mvp);
+		m.mvp.multiplyLhs(m.viewproj);
 
 		m.mvp.addDepthOffset(delta);
 	}

src/org/oscim/view/MapViewPosition.java

@@ -123,7 +123,7 @@ public class MapViewPosition {
 
 		mProjMatrix.set(tmp);
 		mTmpMatrix.setTranslation(0, 0, -VIEW_DISTANCE);
-		mProjMatrix.multiplyMM(mTmpMatrix);
+		mProjMatrix.multiplyRhs(mTmpMatrix);
 		mProjMatrix.get(tmp);
 
 		Matrix.invertM(tmp, 0, tmp, 0);