Skip rendering of lines, points, polygons, and triangle fans, as these lead to...

Skip rendering of lines, points, polygons, and triangle fans, as these lead to crahses due to wrong access to the vertex lists. A fix would need major rewrite of the vertex cache, or at least some other render methods.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4288 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CSoftwareDriver2.cpp

@@ -1736,6 +1736,14 @@ void CBurningVideoDriver::drawVertexPrimitiveList(const void* vertices, u32 vert
 
 	CNullDriver::drawVertexPrimitiveList(vertices, vertexCount, indexList, primitiveCount, vType, pType, iType);
 
+	// These calls would lead to crashes due to wrong index usage.
+	// The vertex cache needs to be rewritten for these primitives.
+	if (pType==scene::EPT_POINTS || pType==scene::EPT_LINE_STRIP ||
+		pType==scene::EPT_LINE_LOOP || pType==scene::EPT_LINES ||
+		pType==scene::EPT_TRIANGLE_FAN || pType==scene::EPT_POLYGON ||
+		pType==scene::EPT_POINT_SPRITES)
+		return;
+
 	if ( 0 == CurrentShader )
 		return;
 
@@ -1805,48 +1813,6 @@ void CBurningVideoDriver::drawVertexPrimitiveList(const void* vertices, u32 vert
 
 		u32 vOut;
 		vOut = clipToFrustum ( CurrentOut.data, Temp.data, 3 );
-/*
-		if ( vOut < 3 )
-		{
-			char buf[256];
-			struct SCheck
-			{
-				u32 flag;
-				const char * name;
-			};
-
-			SCheck check[5];
-			check[0].flag = face[0]->flag;
-			check[0].name = "face0";
-			check[1].flag = face[1]->flag;
-			check[1].name = "face1";
-			check[2].flag = face[2]->flag;
-			check[2].name = "face2";
-			check[3].flag = (face[0]->flag & face[1]->flag & face[2]->flag);
-			check[3].name = "AND  ";
-			check[4].flag = (face[0]->flag | face[1]->flag | face[2]->flag);
-			check[4].name = "OR   ";
-
-			for ( s32 h = 0; h!= 5; ++h )
-			{
-				sprintf ( buf, "%s: %d %d %d %d %d %d",
-								check[h].name,
-								( check[h].flag & 1 ),
-								( check[h].flag & 2 ) >> 1,
-								( check[h].flag & 4 ) >> 2,
-								( check[h].flag & 8 ) >> 3,
-								( check[h].flag & 16 ) >> 4,
-								( check[h].flag & 32 ) >> 5
-							);
-				os::Printer::log( buf );
-			}
-
-			sprintf ( buf, "Vout: %d\n", vOut );
-			os::Printer::log( buf );
-
-			int hold = 1;
-		}
-*/
 		if ( vOut < 3 )
 			continue;
 
@@ -1884,8 +1850,7 @@ void CBurningVideoDriver::drawVertexPrimitiveList(const void* vertices, u32 vert
 		dc_area = screenarea ( CurrentOut.data );
 		if ( Material.org.BackfaceCulling && F32_LOWER_EQUAL_0 ( dc_area ) )
 			continue;
-		else
-		if ( Material.org.FrontfaceCulling && F32_GREATER_EQUAL_0( dc_area ) )
+		else if ( Material.org.FrontfaceCulling && F32_GREATER_EQUAL_0( dc_area ) )
 			continue;
 
 		// select mipmap