diff options
Diffstat (limited to 'src/gallium/drivers/nv30/nv30_state_viewport.c')
| -rw-r--r-- | src/gallium/drivers/nv30/nv30_state_viewport.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv30/nv30_state_viewport.c b/src/gallium/drivers/nv30/nv30_state_viewport.c new file mode 100644 index 0000000000..c3eb413dac --- /dev/null +++ b/src/gallium/drivers/nv30/nv30_state_viewport.c @@ -0,0 +1,72 @@ +#include "nv30_context.h" + +static boolean +nv30_state_viewport_validate(struct nv30_context *nv30) +{ + struct pipe_viewport_state *vpt = &nv30->viewport; + struct nouveau_stateobj *so; + unsigned bypass; + + if (/*nv30->render_mode == HW &&*/ + !nv30->rasterizer->pipe.bypass_vs_clip_and_viewport) + bypass = 0; + else + bypass = 1; + + if (nv30->state.hw[NV30_STATE_VIEWPORT] && + (bypass || !(nv30->dirty & NV30_NEW_VIEWPORT)) && + nv30->state.viewport_bypass == bypass) + return FALSE; + nv30->state.viewport_bypass = bypass; + + so = so_new(11, 0); + if (!bypass) { + so_method(so, nv30->screen->rankine, + NV34TCL_VIEWPORT_TRANSLATE_X, 8); + so_data (so, fui(vpt->translate[0])); + so_data (so, fui(vpt->translate[1])); + so_data (so, fui(vpt->translate[2])); + so_data (so, fui(vpt->translate[3])); + so_data (so, fui(vpt->scale[0])); + so_data (so, fui(vpt->scale[1])); + so_data (so, fui(vpt->scale[2])); + so_data (so, fui(vpt->scale[3])); +/* so_method(so, nv30->screen->rankine, 0x1d78, 1); + so_data (so, 1); +*/ } else { + so_method(so, nv30->screen->rankine, + NV34TCL_VIEWPORT_TRANSLATE_X, 8); + so_data (so, fui(0.0)); + so_data (so, fui(0.0)); + so_data (so, fui(0.0)); + so_data (so, fui(0.0)); + so_data (so, fui(1.0)); + so_data (so, fui(1.0)); + so_data (so, fui(1.0)); + so_data (so, fui(0.0)); + /* Not entirely certain what this is yet. The DDX uses this + * value also as it fixes rendering when you pass + * pre-transformed vertices to the GPU. My best gusss is that + * this bypasses some culling/clipping stage. Might be worth + * noting that points/lines are uneffected by whatever this + * value fixes, only filled polygons are effected. + */ +/* so_method(so, nv30->screen->rankine, 0x1d78, 1); + so_data (so, 0x110); +*/ } + /* TODO/FIXME: never saw value 0x0110 in renouveau dumps, only 0x0001 */ + so_method(so, nv30->screen->rankine, 0x1d78, 1); + so_data (so, 1); + + so_ref(so, &nv30->state.hw[NV30_STATE_VIEWPORT]); + so_ref(NULL, &so); + return TRUE; +} + +struct nv30_state_entry nv30_state_viewport = { + .validate = nv30_state_viewport_validate, + .dirty = { + .pipe = NV30_NEW_VIEWPORT | NV30_NEW_RAST, + .hw = NV30_STATE_VIEWPORT + } +}; |