From 0f983e1793360d98eb8e254755d95d33e2ea8ea2 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Wed, 25 May 2016 11:58:29 -0600 Subject: [PATCH] util/indices: implement unfilled (tri->line) conversion for adjacency prims Tested with new piglit gl-3.2-adj-prims test. v2: re-order trisadj and tristripadj code, per Roland. Reviewed-by: Roland Scheidegger --- .../auxiliary/indices/u_unfilled_gen.py | 26 +++++++++++++++++-- .../auxiliary/indices/u_unfilled_indices.c | 14 ++++++++++ 2 files changed, 38 insertions(+), 2 deletions(-) diff --git a/src/gallium/auxiliary/indices/u_unfilled_gen.py b/src/gallium/auxiliary/indices/u_unfilled_gen.py index 873e78173c5..6b02627df6c 100644 --- a/src/gallium/auxiliary/indices/u_unfilled_gen.py +++ b/src/gallium/auxiliary/indices/u_unfilled_gen.py @@ -35,14 +35,18 @@ PRIMS=('tris', 'tristrip', 'quads', 'quadstrip', - 'polygon') + 'polygon', + 'trisadj', + 'tristripadj') LONGPRIMS=('PIPE_PRIM_TRIANGLES', 'PIPE_PRIM_TRIANGLE_FAN', 'PIPE_PRIM_TRIANGLE_STRIP', 'PIPE_PRIM_QUADS', 'PIPE_PRIM_QUAD_STRIP', - 'PIPE_PRIM_POLYGON') + 'PIPE_PRIM_POLYGON', + 'PIPE_PRIM_TRIANGLES_ADJACENCY', + 'PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY') longprim = dict(zip(PRIMS, LONGPRIMS)) intype_idx = dict(ubyte='IN_UBYTE', ushort='IN_USHORT', uint='IN_UINT') @@ -194,6 +198,22 @@ def quadstrip(intype, outtype): postamble() +def trisadj(intype, outtype): + preamble(intype, outtype, prim='trisadj') + print ' for (i = start, j = 0; j < out_nr; j+=6, i+=6) { ' + do_tri( intype, outtype, 'out+j', 'i', 'i+2', 'i+4' ); + print ' }' + postamble() + + +def tristripadj(intype, outtype): + preamble(intype, outtype, prim='tristripadj') + print ' for (i = start, j = 0; j < out_nr; j+=6, i+=2) { ' + do_tri( intype, outtype, 'out+j', 'i', 'i+2', 'i+4' ); + print ' }' + postamble() + + def emit_funcs(): for intype in INTYPES: for outtype in OUTTYPES: @@ -203,6 +223,8 @@ def emit_funcs(): quads(intype, outtype) quadstrip(intype, outtype) polygon(intype, outtype) + trisadj(intype, outtype) + tristripadj(intype, outtype) def init(intype, outtype, prim): if intype == GENERATE: diff --git a/src/gallium/auxiliary/indices/u_unfilled_indices.c b/src/gallium/auxiliary/indices/u_unfilled_indices.c index 49fff6b8a9c..8cb5192d9a2 100644 --- a/src/gallium/auxiliary/indices/u_unfilled_indices.c +++ b/src/gallium/auxiliary/indices/u_unfilled_indices.c @@ -22,6 +22,12 @@ * USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +/* + * NOTE: This file is not compiled by itself. It's actually #included + * by the generated u_unfilled_gen.c file! + */ + #include "u_indices.h" #include "u_indices_priv.h" #include "util/u_prim.h" @@ -104,6 +110,14 @@ nr_lines(unsigned prim, unsigned nr) return (nr - 2) / 2 * 8; case PIPE_PRIM_POLYGON: return 2 * nr; /* a line (two verts) for each polygon edge */ + /* Note: these cases can't really be handled since drawing lines instead + * of triangles would also require changing the GS. But if there's no GS, + * this should work. + */ + case PIPE_PRIM_TRIANGLES_ADJACENCY: + return (nr / 6) * 6; + case PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY: + return ((nr - 4) / 2) * 6; default: assert(0); return 0; -- 2.30.2