diff options
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pipe_clip.c')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pipe_clip.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pipe_clip.c b/src/gallium/auxiliary/draw/draw_pipe_clip.c index e1eabe22288..fbc8f675129 100644 --- a/src/gallium/auxiliary/draw/draw_pipe_clip.c +++ b/src/gallium/auxiliary/draw/draw_pipe_clip.c @@ -118,6 +118,7 @@ static void interp( const struct clip_stage *clip, { const unsigned nr_attrs = draw_current_shader_outputs(clip->stage.draw); const unsigned pos_attr = draw_current_shader_position_output(clip->stage.draw); + const unsigned clip_attr = draw_current_shader_clipvertex_output(clip->stage.draw); unsigned j; /* Vertex header. @@ -130,12 +131,14 @@ static void interp( const struct clip_stage *clip, /* Interpolate the clip-space coords. */ interp_attr(dst->clip, t, in->clip, out->clip); + /* interpolate the clip-space position */ + interp_attr(dst->pre_clip_pos, t, in->pre_clip_pos, out->pre_clip_pos); /* Do the projective divide and viewport transformation to get * new window coordinates: */ { - const float *pos = dst->clip; + const float *pos = dst->pre_clip_pos; const float *scale = clip->stage.draw->viewport.scale; const float *trans = clip->stage.draw->viewport.translate; const float oow = 1.0f / pos[3]; @@ -149,8 +152,8 @@ static void interp( const struct clip_stage *clip, /* Other attributes */ for (j = 0; j < nr_attrs; j++) { - if (j != pos_attr) - interp_attr(dst->data[j], t, in->data[j], out->data[j]); + if (j != pos_attr && j != clip_attr) + interp_attr(dst->data[j], t, in->data[j], out->data[j]); } } |