From 7f7c9425a870af2bcb8b4c3149810bd1b32b8ddc Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 25 Mar 2019 15:38:18 +1000 Subject: [PATCH] draw/vs: partly fix basevertex/vertex id This gets the basevertex from the draw depending on whether it's an indexed or non-indexed draw. We still fail a transform feedback test for vertex id, as the vertex id actually an index id, and isn't getting translated properly to a vertex id, suggestions on how/where to fix that welcome. Reviewed-by: Brian Paul --- src/gallium/auxiliary/draw/draw_vs_exec.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/src/gallium/auxiliary/draw/draw_vs_exec.c b/src/gallium/auxiliary/draw/draw_vs_exec.c index 4f11ac7506c..dbd7aa551eb 100644 --- a/src/gallium/auxiliary/draw/draw_vs_exec.c +++ b/src/gallium/auxiliary/draw/draw_vs_exec.c @@ -128,18 +128,17 @@ vs_exec_run_linear(struct draw_vertex_shader *shader, input[slot][3]); } #endif + int basevertex = shader->draw->pt.user.eltSize ? shader->draw->pt.user.eltBias : shader->draw->start_index; if (shader->info.uses_vertexid) { unsigned vid = machine->SysSemanticToIndex[TGSI_SEMANTIC_VERTEXID]; assert(vid < ARRAY_SIZE(machine->SystemValue)); - machine->SystemValue[vid].xyzw[0].i[j] = i + j; - /* XXX this should include base vertex. Where to get it??? */ + machine->SystemValue[vid].xyzw[0].i[j] = i + j + basevertex; } if (shader->info.uses_basevertex) { unsigned vid = machine->SysSemanticToIndex[TGSI_SEMANTIC_BASEVERTEX]; assert(vid < ARRAY_SIZE(machine->SystemValue)); - machine->SystemValue[vid].xyzw[0].i[j] = 0; - /* XXX Where to get it??? */ + machine->SystemValue[vid].xyzw[0].i[j] = basevertex; } if (shader->info.uses_vertexid_nobase) { unsigned vid = machine->SysSemanticToIndex[TGSI_SEMANTIC_VERTEXID_NOBASE]; -- 2.30.2