From 2161b0fafcdc16703162dd489d2ec1e7114cce4c Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Wed, 11 Jun 2008 23:48:13 +0100 Subject: draw: don't assume vertex position is in data[0] --- src/gallium/auxiliary/draw/draw_pipe_clip.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'src/gallium/auxiliary/draw/draw_pipe_clip.c') diff --git a/src/gallium/auxiliary/draw/draw_pipe_clip.c b/src/gallium/auxiliary/draw/draw_pipe_clip.c index 77ccddac4ab..fa10f8efca2 100644 --- a/src/gallium/auxiliary/draw/draw_pipe_clip.c +++ b/src/gallium/auxiliary/draw/draw_pipe_clip.c @@ -113,6 +113,7 @@ static void interp( const struct clipper *clip, const struct vertex_header *in ) { const unsigned nr_attrs = clip->stage.draw->vs.num_vs_outputs; + const unsigned pos_attr = clip->stage.draw->vs.position_output; unsigned j; /* Vertex header. @@ -138,18 +139,17 @@ static void interp( const struct clipper *clip, const float *trans = clip->stage.draw->viewport.translate; const float oow = 1.0f / pos[3]; - dst->data[0][0] = pos[0] * oow * scale[0] + trans[0]; - dst->data[0][1] = pos[1] * oow * scale[1] + trans[1]; - dst->data[0][2] = pos[2] * oow * scale[2] + trans[2]; - dst->data[0][3] = oow; + dst->data[pos_attr][0] = pos[0] * oow * scale[0] + trans[0]; + dst->data[pos_attr][1] = pos[1] * oow * scale[1] + trans[1]; + dst->data[pos_attr][2] = pos[2] * oow * scale[2] + trans[2]; + dst->data[pos_attr][3] = oow; } /* Other attributes - * Note: start at 1 to skip winpos (data[0]) since we just computed - * it above. */ - for (j = 1; j < nr_attrs; j++) { - interp_attr(dst->data[j], t, in->data[j], out->data[j]); + for (j = 0; j < nr_attrs; j++) { + if (j != pos_attr) + interp_attr(dst->data[j], t, in->data[j], out->data[j]); } } -- cgit v1.2.3