From 525f529d138168386224136dc45abb858677bac7 Mon Sep 17 00:00:00 2001 From: Christoph Bumiller Date: Sat, 31 Oct 2009 11:25:48 +0100 Subject: nv50: make MRTs work We have to indicate to the hw whether the FP exports multiple colour results. Method 0x121c is used to specify the number of RTs. Also deactivate zeta explicitly if there's no zsbuf. --- src/gallium/drivers/nv50/nv50_program.c | 4 ++++ src/gallium/drivers/nv50/nv50_state_validate.c | 11 +++++++++++ 2 files changed, 15 insertions(+) diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c index 9ccc4f5a161..c3edc02cb51 100644 --- a/src/gallium/drivers/nv50/nv50_program.c +++ b/src/gallium/drivers/nv50/nv50_program.c @@ -2644,6 +2644,10 @@ nv50_program_tx_prep(struct nv50_pc *pc) pc->result[2].rhw = rid; p->cfg.high_result = rid; + + /* separate/different colour results for MRTs ? */ + if (pc->result_nr - (p->info.writes_z ? 1 : 0) > 1) + p->cfg.regs[2] |= 1; } if (pc->immd_nr) { diff --git a/src/gallium/drivers/nv50/nv50_state_validate.c b/src/gallium/drivers/nv50/nv50_state_validate.c index 956a7006154..a13d64b7fa7 100644 --- a/src/gallium/drivers/nv50/nv50_state_validate.c +++ b/src/gallium/drivers/nv50/nv50_state_validate.c @@ -37,6 +37,14 @@ nv50_state_validate_fb(struct nv50_context *nv50) struct pipe_framebuffer_state *fb = &nv50->framebuffer; unsigned i, w, h, gw = 0; + /* Set nr of active RTs. Don't know what 0xfac6880 does, but + * at least 0x880 was required to draw to more than 1 RT. + * In some special cases, 0xfac6880 is not used, we probably + * don't hit any of these though. + */ + so_method(so, tesla, 0x121c, 1); + so_data (so, 0x0fac6880 | fb->nr_cbufs); + for (i = 0; i < fb->nr_cbufs; i++) { struct pipe_texture *pt = fb->cbufs[i]->texture; struct nouveau_bo *bo = nv50_miptree(pt)->base.bo; @@ -121,6 +129,9 @@ nv50_state_validate_fb(struct nv50_context *nv50) so_data (so, fb->zsbuf->width); so_data (so, fb->zsbuf->height); so_data (so, 0x00010001); + } else { + so_method(so, tesla, 0x1538, 1); + so_data (so, 0); } so_method(so, tesla, NV50TCL_VIEWPORT_HORIZ, 2); -- cgit v1.2.3