Add some more inits for the vertex cache. Most types still don't work, and...

Add some more inits for the vertex cache. Most types still don't work, and some still crash due to wrong memory access. But it's a beginning, Thomas will have to look into this.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2618 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CSoftwareDriver2.cpp

@@ -1062,7 +1062,7 @@ REALINLINE void CBurningVideoDriver::VertexCache_get ( s4DVertex ** face )
 			VertexCache.info[i].hit = 0;
 		}
 
-		// mark all exisiting
+		// mark all existing
 		for ( i = 0; i!= fillIndex; ++i )
 		{
 			for ( dIndex = 0;  dIndex < VERTEXCACHE_ELEMENT; ++dIndex )
@@ -1148,7 +1148,8 @@ REALINLINE void CBurningVideoDriver::VertexCache_getbypass ( s4DVertex ** face )
 */
 void CBurningVideoDriver::VertexCache_reset ( const void* vertices, u32 vertexCount,
 											const void* indices, u32 primitiveCount,
-											E_VERTEX_TYPE vType,scene::E_PRIMITIVE_TYPE pType,
+											E_VERTEX_TYPE vType,
+											scene::E_PRIMITIVE_TYPE pType,
 											E_INDEX_TYPE iType)
 {
 	VertexCache.vertices = vertices;
@@ -1167,6 +1168,28 @@ void CBurningVideoDriver::VertexCache_reset ( const void* vertices, u32 vertexCo
 
 	switch ( VertexCache.pType )
 	{
+		// most types here will not work as expected, only triangles/triangle_fan
+		// is known to work.
+		case scene::EPT_POINTS:
+			VertexCache.indexCount = primitiveCount;
+			VertexCache.primitivePitch = 1;
+			break;
+		case scene::EPT_LINE_STRIP:
+			VertexCache.indexCount = primitiveCount+1;
+			VertexCache.primitivePitch = 1;
+			break;
+		case scene::EPT_LINE_LOOP:
+			VertexCache.indexCount = primitiveCount+1;
+			VertexCache.primitivePitch = 1;
+			break;
+		case scene::EPT_LINES:
+			VertexCache.indexCount = 2*primitiveCount;
+			VertexCache.primitivePitch = 2;
+			break;
+		case scene::EPT_TRIANGLE_STRIP:
+			VertexCache.indexCount = primitiveCount+2;
+			VertexCache.primitivePitch = 1;
+			break;
 		case scene::EPT_TRIANGLES:
 			VertexCache.indexCount = primitiveCount + primitiveCount + primitiveCount;
 			VertexCache.primitivePitch = 3;
@@ -1175,10 +1198,25 @@ void CBurningVideoDriver::VertexCache_reset ( const void* vertices, u32 vertexCo
 			VertexCache.indexCount = primitiveCount + 2;
 			VertexCache.primitivePitch = 1;
 			break;
+		case scene::EPT_QUAD_STRIP:
+			VertexCache.indexCount = 2*primitiveCount + 2;
+			VertexCache.primitivePitch = 2;
+			break;
+		case scene::EPT_QUADS:
+			VertexCache.indexCount = 4*primitiveCount;
+			VertexCache.primitivePitch = 4;
+			break;
+		case scene::EPT_POLYGON:
+			VertexCache.indexCount = primitiveCount+1;
+			VertexCache.primitivePitch = 1;
+			break;
+		case scene::EPT_POINT_SPRITES:
+			VertexCache.indexCount = primitiveCount;
+			VertexCache.primitivePitch = 1;
+			break;
 	}
 
 	irr::memset32 ( VertexCache.info, VERTEXCACHE_MISS, sizeof ( VertexCache.info ) );
-
 }