diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_context.h | 5 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_defines.h | 5 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_gs.c | 5 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp | 11 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen8_gs_state.c | 6 |
5 files changed, 28 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h index d36891cd310..27e80ea3bd6 100644 --- a/src/mesa/drivers/dri/i965/brw_context.h +++ b/src/mesa/drivers/dri/i965/brw_context.h @@ -792,6 +792,11 @@ struct brw_gs_prog_data bool include_primitive_id; + /** + * The number of vertices emitted, if constant - otherwise -1. + */ + int static_vertex_count; + int invocations; /** diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h index 7045d2ce043..393f17ac98c 100644 --- a/src/mesa/drivers/dri/i965/brw_defines.h +++ b/src/mesa/drivers/dri/i965/brw_defines.h @@ -1964,6 +1964,11 @@ enum brw_message_target { # define GEN6_GS_SVBI_POSTINCREMENT_VALUE_MASK INTEL_MASK(25, 16) # define GEN6_GS_ENABLE (1 << 15) +/* Gen8+ DW8 */ +# define GEN8_GS_STATIC_OUTPUT (1 << 30) +# define GEN8_GS_STATIC_VERTEX_COUNT_SHIFT 16 +# define GEN8_GS_STATIC_VERTEX_COUNT_MASK INTEL_MASK(26, 16) + /* Gen8+ DW9 */ # define GEN8_GS_URB_ENTRY_OUTPUT_OFFSET_SHIFT 21 # define GEN8_GS_URB_OUTPUT_LENGTH_SHIFT 16 diff --git a/src/mesa/drivers/dri/i965/brw_gs.c b/src/mesa/drivers/dri/i965/brw_gs.c index 1f219c0eac6..0de36cc9af1 100644 --- a/src/mesa/drivers/dri/i965/brw_gs.c +++ b/src/mesa/drivers/dri/i965/brw_gs.c @@ -73,6 +73,11 @@ brw_codegen_gs_prog(struct brw_context *brw, c.prog_data.base.base.nr_params = param_count; c.prog_data.base.base.nr_image_params = gs->NumImages; + if (brw->gen >= 8) { + c.prog_data.static_vertex_count = !gp->program.Base.nir ? -1 : + nir_gs_count_vertices(gp->program.Base.nir); + } + if (brw->gen >= 7) { if (gp->program.OutputType == GL_POINTS) { /* When the output type is points, the geometry shader may output data diff --git a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp index ff5bd989cc3..acf0501399c 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp @@ -234,17 +234,20 @@ vec4_gs_visitor::emit_thread_end() */ int base_mrf = 1; + bool static_vertex_count = c->prog_data.static_vertex_count != -1; + current_annotation = "thread end"; dst_reg mrf_reg(MRF, base_mrf); src_reg r0(retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UD)); vec4_instruction *inst = emit(MOV(mrf_reg, r0)); inst->force_writemask_all = true; - emit(GS_OPCODE_SET_VERTEX_COUNT, mrf_reg, this->vertex_count); + if (devinfo->gen < 8 || !static_vertex_count) + emit(GS_OPCODE_SET_VERTEX_COUNT, mrf_reg, this->vertex_count); if (INTEL_DEBUG & DEBUG_SHADER_TIME) emit_shader_time_end(); inst = emit(GS_OPCODE_THREAD_END); inst->base_mrf = base_mrf; - inst->mlen = devinfo->gen >= 8 ? 2 : 1; + inst->mlen = devinfo->gen >= 8 && !static_vertex_count ? 2 : 1; } @@ -284,7 +287,7 @@ vec4_gs_visitor::emit_urb_write_opcode(bool complete) /* We need to increment Global Offset by 1 to make room for Broadwell's * extra "Vertex Count" payload at the beginning of the URB entry. */ - if (devinfo->gen >= 8) + if (devinfo->gen >= 8 && c->prog_data.static_vertex_count == -1) inst->offset++; inst->urb_write_flags = BRW_URB_WRITE_PER_SLOT_OFFSET; @@ -421,7 +424,7 @@ vec4_gs_visitor::emit_control_data_bits() * URB entry. Since this is an OWord message, Global Offset is counted * in 128-bit units, so we must set it to 2. */ - if (devinfo->gen >= 8) + if (devinfo->gen >= 8 && c->prog_data.static_vertex_count == -1) inst->offset = 2; inst->base_mrf = base_mrf; inst->mlen = 2; diff --git a/src/mesa/drivers/dri/i965/gen8_gs_state.c b/src/mesa/drivers/dri/i965/gen8_gs_state.c index 81bd3b21778..4195f4cf4a7 100644 --- a/src/mesa/drivers/dri/i965/gen8_gs_state.c +++ b/src/mesa/drivers/dri/i965/gen8_gs_state.c @@ -90,6 +90,12 @@ gen8_upload_gs_state(struct brw_context *brw) uint32_t dw8 = brw->gs.prog_data->control_data_format << HSW_GS_CONTROL_DATA_FORMAT_SHIFT; + if (brw->gs.prog_data->static_vertex_count != -1) { + dw8 |= GEN8_GS_STATIC_OUTPUT | + SET_FIELD(brw->gs.prog_data->static_vertex_count, + GEN8_GS_STATIC_VERTEX_COUNT); + } + if (brw->gen < 9) dw7 |= (brw->max_gs_threads / 2 - 1) << HSW_GS_MAX_THREADS_SHIFT; else |