From: Dave Airlie <[email protected]> This just adds the infrastructure to allow writing layer and viewport index. It's just a first patch out of the geom shader tree, and doesn't do much on its own.
Signed-off-by: Dave Airlie <[email protected]> --- src/amd/common/ac_nir_to_llvm.c | 14 +++++++++++++- src/amd/common/ac_nir_to_llvm.h | 2 ++ src/amd/vulkan/radv_cmd_buffer.c | 6 +++++- 3 files changed, 20 insertions(+), 2 deletions(-) diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c index 798ddca..5183288 100644 --- a/src/amd/common/ac_nir_to_llvm.c +++ b/src/amd/common/ac_nir_to_llvm.c @@ -4107,7 +4107,7 @@ handle_vs_outputs_post(struct nir_to_llvm_context *ctx) unsigned pos_idx, num_pos_exports = 0; LLVMValueRef args[9]; LLVMValueRef pos_args[4][9] = { { 0 } }; - LLVMValueRef psize_value = 0; + LLVMValueRef psize_value = NULL, layer_value = NULL, viewport_index_value = NULL; int i; const uint64_t clip_mask = ctx->output_mask & ((1ull << VARYING_SLOT_CLIP_DIST0) | (1ull << VARYING_SLOT_CLIP_DIST1) | @@ -4167,6 +4167,14 @@ handle_vs_outputs_post(struct nir_to_llvm_context *ctx) ctx->shader_info->vs.writes_pointsize = true; psize_value = values[0]; continue; + } else if (i == VARYING_SLOT_LAYER) { + ctx->shader_info->vs.writes_layer = true; + layer_value = values[0]; + continue; + } else if (i == VARYING_SLOT_VIEWPORT) { + ctx->shader_info->vs.writes_viewport_index = true; + viewport_index_value = values[0]; + continue; } else if (i >= VARYING_SLOT_VAR0) { ctx->shader_info->vs.export_mask |= 1u << (i - VARYING_SLOT_VAR0); target = V_008DFC_SQ_EXP_PARAM + param_count; @@ -4213,6 +4221,10 @@ handle_vs_outputs_post(struct nir_to_llvm_context *ctx) if (ctx->shader_info->vs.writes_pointsize == true) pos_args[1][5] = psize_value; + if (ctx->shader_info->vs.writes_layer == true) + pos_args[1][7] = layer_value; + if (ctx->shader_info->vs.writes_viewport_index == true) + pos_args[1][8] = viewport_index_value; } for (i = 0; i < 4; i++) { if (pos_args[i][0]) diff --git a/src/amd/common/ac_nir_to_llvm.h b/src/amd/common/ac_nir_to_llvm.h index f488c09..a57558e 100644 --- a/src/amd/common/ac_nir_to_llvm.h +++ b/src/amd/common/ac_nir_to_llvm.h @@ -95,6 +95,8 @@ struct ac_shader_variant_info { unsigned vgpr_comp_cnt; uint32_t export_mask; bool writes_pointsize; + bool writes_layer; + bool writes_viewport_index; uint8_t clip_dist_mask; uint8_t cull_dist_mask; } vs; diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c index 651b1dd..49f4791 100644 --- a/src/amd/vulkan/radv_cmd_buffer.c +++ b/src/amd/vulkan/radv_cmd_buffer.c @@ -500,7 +500,11 @@ radv_emit_vertex_shader(struct radv_cmd_buffer *cmd_buffer, radeon_set_context_reg(cmd_buffer->cs, R_02881C_PA_CL_VS_OUT_CNTL, S_02881C_USE_VTX_POINT_SIZE(vs->info.vs.writes_pointsize) | - S_02881C_VS_OUT_MISC_VEC_ENA(vs->info.vs.writes_pointsize) | + S_02881C_USE_VTX_RENDER_TARGET_INDX(vs->info.vs.writes_layer) | + S_02881C_USE_VTX_VIEWPORT_INDX(vs->info.vs.writes_viewport_index) | + S_02881C_VS_OUT_MISC_VEC_ENA(vs->info.vs.writes_pointsize || + vs->info.vs.writes_layer || + vs->info.vs.writes_viewport_index) | S_02881C_VS_OUT_CCDIST0_VEC_ENA((total_mask & 0x0f) != 0) | S_02881C_VS_OUT_CCDIST1_VEC_ENA((total_mask & 0xf0) != 0) | pipeline->graphics.raster.pa_cl_vs_out_cntl | -- 2.9.3 _______________________________________________ mesa-dev mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-dev
