From 01670ca8073b57029625873b5c8374fb8716e1eb Mon Sep 17 00:00:00 2001 From: Christoph Bumiller Date: Mon, 14 Sep 2009 21:03:19 +0200 Subject: [PATCH] nv50: add preliminary support for point sprites --- src/gallium/drivers/nv50/nv50_program.c | 55 ++++++++++++++++++++++++- src/gallium/drivers/nv50/nv50_screen.c | 2 +- src/gallium/drivers/nv50/nv50_state.c | 3 ++ 3 files changed, 58 insertions(+), 2 deletions(-) diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c index 58df4a08dc9..80a32f58cb7 100644 --- a/src/gallium/drivers/nv50/nv50_program.c +++ b/src/gallium/drivers/nv50/nv50_program.c @@ -2704,6 +2704,52 @@ nv50_fragprog_validate(struct nv50_context *nv50) so_ref(NULL, &so); } +static void +nv50_pntc_replace(struct nv50_context *nv50, uint32_t pntc[8], unsigned base) +{ + struct nv50_program *fp = nv50->fragprog; + struct nv50_program *vp = nv50->vertprog; + unsigned i, c, m = base; + + /* XXX: This can't work correctly in all cases yet, we either + * have to create TGSI_SEMANTIC_PNTC or sprite_coord_mode has + * to be per FP input instead of per VP output + */ + memset(pntc, 0, 8 * sizeof(uint32_t)); + + for (i = 0; i < fp->cfg.io_nr; i++) { + uint8_t sn, si; + uint8_t j = fp->cfg.io[i].id_vp, k = fp->cfg.io[i].id_fp; + unsigned n = popcnt4(fp->cfg.io[i].mask); + + if (fp->info.input_semantic_name[k] != TGSI_SEMANTIC_GENERIC) { + m += n; + continue; + } + + sn = vp->info.input_semantic_name[j]; + si = vp->info.input_semantic_index[j]; + + if (j < fp->cfg.io_nr && sn == TGSI_SEMANTIC_GENERIC) { + ubyte mode = + nv50->rasterizer->pipe.sprite_coord_mode[si]; + + if (mode == PIPE_SPRITE_COORD_NONE) { + m += n; + continue; + } + } + + /* this is either PointCoord or replaced by sprite coords */ + for (c = 0; c < 4; c++) { + if (!(fp->cfg.io[i].mask & (1 << c))) + continue; + pntc[m / 8] |= (c + 1) << ((m % 8) * 4); + ++m; + } + } +} + static int nv50_sreg4_map(uint32_t *p_map, int mid, uint32_t lin[4], struct nv50_sreg4 *fpi, struct nv50_sreg4 *vpo) @@ -2736,7 +2782,7 @@ nv50_linkage_validate(struct nv50_context *nv50) struct nouveau_stateobj *so; struct nv50_sreg4 dummy, *vpo; int i, n, c, m = 0; - uint32_t map[16], lin[4], reg[5]; + uint32_t map[16], lin[4], reg[5], pcrd[8]; memset(map, 0, sizeof(map)); memset(lin, 0, sizeof(lin)); @@ -2813,6 +2859,13 @@ nv50_linkage_validate(struct nv50_context *nv50) so_method(so, tesla, 0x1540, 4); so_datap (so, lin, 4); + if (nv50->rasterizer->pipe.point_sprite) { + nv50_pntc_replace(nv50, pcrd, (reg[4] >> 8) & 0xff); + + so_method(so, tesla, NV50TCL_POINT_COORD_REPLACE_MAP(0), 8); + so_datap (so, pcrd, 8); + } + so_ref(so, &nv50->state.programs); so_ref(NULL, &so); } diff --git a/src/gallium/drivers/nv50/nv50_screen.c b/src/gallium/drivers/nv50/nv50_screen.c index c7f80a22037..7adaaaa135b 100644 --- a/src/gallium/drivers/nv50/nv50_screen.c +++ b/src/gallium/drivers/nv50/nv50_screen.c @@ -92,7 +92,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, int param) case PIPE_CAP_ANISOTROPIC_FILTER: return 1; case PIPE_CAP_POINT_SPRITE: - return 0; + return 1; case PIPE_CAP_MAX_RENDER_TARGETS: return 8; case PIPE_CAP_OCCLUSION_QUERY: diff --git a/src/gallium/drivers/nv50/nv50_state.c b/src/gallium/drivers/nv50/nv50_state.c index 1de60fed6ec..81fa3e34c59 100644 --- a/src/gallium/drivers/nv50/nv50_state.c +++ b/src/gallium/drivers/nv50/nv50_state.c @@ -297,6 +297,9 @@ nv50_rasterizer_state_create(struct pipe_context *pipe, so_method(so, tesla, NV50TCL_POINT_SIZE, 1); so_data (so, fui(cso->point_size)); + so_method(so, tesla, NV50TCL_POINT_SPRITE_ENABLE, 1); + so_data (so, cso->point_sprite); + so_method(so, tesla, NV50TCL_POLYGON_MODE_FRONT, 3); if (cso->front_winding == PIPE_WINDING_CCW) { so_data(so, nvgl_polygon_mode(cso->fill_ccw)); -- 2.30.2