From: Zack Rusin Date: Thu, 18 Apr 2013 10:03:14 +0000 (-0700) Subject: util/prim: fix decomposed counts for adjacency primitives X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e4752d0f56b90a5565936b1e05bb48edb1baa3ac;p=mesa.git util/prim: fix decomposed counts for adjacency primitives Signed-off-by: Zack Rusin Reviewed-by: Brian Paul Reviewed-by: Jose Fonseca --- diff --git a/src/gallium/auxiliary/util/u_prim.h b/src/gallium/auxiliary/util/u_prim.h index 99bb66c9b89..507d12e8096 100644 --- a/src/gallium/auxiliary/util/u_prim.h +++ b/src/gallium/auxiliary/util/u_prim.h @@ -190,13 +190,13 @@ u_decomposed_prims_for_vertices(int primitive, int vertices) case PIPE_PRIM_TRIANGLE_FAN: return (vertices > 2) ? vertices - 2 : 0; case PIPE_PRIM_LINES_ADJACENCY: - return vertices / 2; + return vertices / 4; case PIPE_PRIM_LINE_STRIP_ADJACENCY: - return (vertices > 1) ? vertices - 1 : 0; + return (vertices > 3) ? vertices - 3 : 0; case PIPE_PRIM_TRIANGLES_ADJACENCY: - return vertices / 3; + return vertices / 6; case PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY: - return (vertices > 2) ? vertices - 2 : 0; + return (vertices > 5) ? 1 + (vertices - 6)/2 : 0; case PIPE_PRIM_QUADS: return vertices / 4; case PIPE_PRIM_QUAD_STRIP: