diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/gen8_draw_upload.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen8_draw_upload.c | 56 |
1 files changed, 42 insertions, 14 deletions
diff --git a/src/mesa/drivers/dri/i965/gen8_draw_upload.c b/src/mesa/drivers/dri/i965/gen8_draw_upload.c index f7d9952..2bac5ff 100644 --- a/src/mesa/drivers/dri/i965/gen8_draw_upload.c +++ b/src/mesa/drivers/dri/i965/gen8_draw_upload.c @@ -40,16 +40,25 @@ gen8_emit_vertices(struct brw_context *brw) { struct gl_context *ctx = &brw->ctx; uint32_t mocs_wb = brw->gen >= 9 ? SKL_MOCS_WB : BDW_MOCS_WB; + bool uses_edge_flag; brw_prepare_vertices(brw); brw_prepare_shader_draw_parameters(brw); + uses_edge_flag = (ctx->Polygon.FrontMode != GL_FILL || + ctx->Polygon.BackMode != GL_FILL); + if (brw->vs.prog_data->uses_vertexid || brw->vs.prog_data->uses_instanceid) { unsigned vue = brw->vb.nr_enabled; - WARN_ONCE(brw->vs.prog_data->inputs_read & VERT_BIT_EDGEFLAG, - "Using VID/IID with edgeflags, need to reorder the " - "vertex attributes"); + /* The element for the edge flags must always be last, so we have to + * insert the SGVS before it in that case. + */ + if (uses_edge_flag) { + assert(vue > 0); + vue--; + } + WARN_ONCE(vue >= 33, "Trying to insert VID/IID past 33rd vertex element, " "need to reorder the vertex attrbutes."); @@ -138,7 +147,18 @@ gen8_emit_vertices(struct brw_context *brw) ADVANCE_BATCH(); } - unsigned nr_elements = brw->vb.nr_enabled + brw->vs.prog_data->uses_vertexid; + /* Normally we don't need an element for the SGVS attribute because the + * 3DSTATE_VF_SGVS instruction lets you store the generated attribute in an + * element that is past the list in 3DSTATE_VERTEX_ELEMENTS. However if the + * vertex ID is used then it needs an element for the base vertex buffer. + * Additionally if there is an edge flag element then the SGVS can't be + * inserted past that so we need a dummy element to ensure that the edge + * flag is the last one. + */ + bool needs_sgvs_element = (brw->vs.prog_data->uses_vertexid || + (brw->vs.prog_data->uses_instanceid && + uses_edge_flag)); + unsigned nr_elements = brw->vb.nr_enabled + needs_sgvs_element; /* The hardware allows one more VERTEX_ELEMENTS than VERTEX_BUFFERS, * presumably for VertexID/InstanceID. @@ -192,6 +212,24 @@ gen8_emit_vertices(struct brw_context *brw) (comp3 << BRW_VE1_COMPONENT_3_SHIFT)); } + if (needs_sgvs_element) { + if (brw->vs.prog_data->uses_vertexid) { + OUT_BATCH(GEN6_VE0_VALID | + brw->vb.nr_buffers << GEN6_VE0_INDEX_SHIFT | + BRW_SURFACEFORMAT_R32_UINT << BRW_VE0_FORMAT_SHIFT); + OUT_BATCH((BRW_VE1_COMPONENT_STORE_SRC << BRW_VE1_COMPONENT_0_SHIFT) | + (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_1_SHIFT) | + (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) | + (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_3_SHIFT)); + } else { + OUT_BATCH(GEN6_VE0_VALID); + OUT_BATCH((BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_0_SHIFT) | + (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_1_SHIFT) | + (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) | + (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_3_SHIFT)); + } + } + if (gen6_edgeflag_input) { uint32_t format = brw_get_vertex_surface_type(brw, gen6_edgeflag_input->glarray); @@ -206,16 +244,6 @@ gen8_emit_vertices(struct brw_context *brw) (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) | (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_3_SHIFT)); } - - if (brw->vs.prog_data->uses_vertexid) { - OUT_BATCH(GEN6_VE0_VALID | - brw->vb.nr_buffers << GEN6_VE0_INDEX_SHIFT | - BRW_SURFACEFORMAT_R32_UINT << BRW_VE0_FORMAT_SHIFT); - OUT_BATCH((BRW_VE1_COMPONENT_STORE_SRC << BRW_VE1_COMPONENT_0_SHIFT) | - (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_1_SHIFT) | - (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) | - (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_3_SHIFT)); - } ADVANCE_BATCH(); for (unsigned i = 0; i < brw->vb.nr_enabled; i++) { |