diff options
| author | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2009-07-29 01:21:41 +0200 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2009-07-29 09:40:34 +1000 |
| commit | d1b9183e64e819d389688074c3db338bd0d2d80e (patch) | |
| tree | f69443f0a9e93d65c9af8416a952081d1c5159f1 /src/gallium | |
| parent | b0341f994feb3ea724bdbbfde5d79ec2c88c34a1 (diff) | |
nv50: fix viewport transform
The translation also needs to be inverted, and in bypass mode
the state tracker incorrectly assumes that Y = 0 = TOP, so we
need inversion there to; NDC clipping has to be deactivated
explicitly.
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_state_validate.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/src/gallium/drivers/nv50/nv50_state_validate.c b/src/gallium/drivers/nv50/nv50_state_validate.c index 03aed81fed..ce8e44fb00 100644 --- a/src/gallium/drivers/nv50/nv50_state_validate.c +++ b/src/gallium/drivers/nv50/nv50_state_validate.c @@ -258,6 +258,7 @@ scissor_uptodate: if (nv50->dirty & (NV50_NEW_VIEWPORT | NV50_NEW_RASTERIZER)) { unsigned bypass; + float y_translate = (float)nv50->framebuffer.height; if (!nv50->rasterizer->pipe.bypass_vs_clip_and_viewport) bypass = 0; @@ -271,25 +272,33 @@ scissor_uptodate: nv50->state.viewport_bypass = bypass; so = so_new(12, 0); + so_method(so, tesla, NV50TCL_VIEW_VOLUME_CLIP_CTRL, 1); if (!bypass) { - so_method(so, tesla, NV50TCL_VIEWPORT_UNK1(0), 3); + so_data(so, 0x0000); + y_translate -= nv50->viewport.translate[1]; + so_method(so, tesla, NV50TCL_VIEWPORT_TRANSLATE(0), 3); so_data (so, fui(nv50->viewport.translate[0])); - so_data (so, fui(nv50->viewport.translate[1])); + so_data (so, fui(y_translate)); so_data (so, fui(nv50->viewport.translate[2])); - so_method(so, tesla, NV50TCL_VIEWPORT_UNK0(0), 3); + so_method(so, tesla, NV50TCL_VIEWPORT_SCALE(0), 3); so_data (so, fui(nv50->viewport.scale[0])); so_data (so, fui(-nv50->viewport.scale[1])); so_data (so, fui(nv50->viewport.scale[2])); - so_method(so, tesla, 0x192c, 1); - so_data (so, 1); - so_method(so, tesla, 0x0f90, 1); - so_data (so, 0); } else { - so_method(so, tesla, 0x192c, 1); - so_data (so, 0); - so_method(so, tesla, 0x0f90, 1); - so_data (so, 1); + /* don't do xy-clipping in NDC space */ + so_data(so, 0x0800); + /* in bypass mode, y = 0 would be bottom */ + so_method(so, tesla, NV50TCL_VIEWPORT_TRANSLATE(0), 3); + so_data (so, fui(0.0f)); + so_data (so, fui(y_translate)); + so_data (so, fui(0.0f)); + so_method(so, tesla, NV50TCL_VIEWPORT_SCALE(0), 3); + so_data (so, fui(1.0f)); + so_data (so, fui(-1.0f)); + so_data (so, fui(1.0f)); } + so_method(so, tesla, NV50TCL_VIEWPORT_TRANSFORM_EN, 1); + so_data (so, 1); so_ref(so, &nv50->state.viewport); so_ref(NULL, &so); |