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radv/ac: Add draw index support.

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Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
This commit is contained in:
Bas Nieuwenhuizen 2017-01-31 21:21:47 +01:00
parent 25f2d3c1d3
commit 80f4331ed1
1 changed files with 8 additions and 2 deletions
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10
src/amd/common/ac_nir_to_llvm.c
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@ -82,6 +82,7 @@ struct nir_to_llvm_context {
LLVMValueRef vertex_buffers;
LLVMValueRef base_vertex;
LLVMValueRef start_instance;
LLVMValueRef draw_index;
LLVMValueRef vertex_id;
LLVMValueRef rel_auto_id;
LLVMValueRef vs_prim_id;
@ -560,6 +561,7 @@ static void create_function(struct nir_to_llvm_context *ctx)
arg_types[arg_idx++] = const_array(ctx->v16i8, 16); /* vertex buffers */
arg_types[arg_idx++] = ctx->i32; // base vertex
arg_types[arg_idx++] = ctx->i32; // start instance
arg_types[arg_idx++] = ctx->i32; // draw index
}
user_sgpr_count = arg_idx;
if (ctx->options->key.vs.as_es)
@ -684,10 +686,11 @@ static void create_function(struct nir_to_llvm_context *ctx)
set_userdata_location_shader(ctx, AC_UD_VS_VERTEX_BUFFERS, user_sgpr_idx, 2);
user_sgpr_idx += 2;
ctx->vertex_buffers = LLVMGetParam(ctx->main_function, arg_idx++);
set_userdata_location_shader(ctx, AC_UD_VS_BASE_VERTEX_START_INSTANCE, user_sgpr_idx, 2);
user_sgpr_idx += 2;
set_userdata_location_shader(ctx, AC_UD_VS_BASE_VERTEX_START_INSTANCE, user_sgpr_idx, 3);
user_sgpr_idx += 3;
ctx->base_vertex = LLVMGetParam(ctx->main_function, arg_idx++);
ctx->start_instance = LLVMGetParam(ctx->main_function, arg_idx++);
ctx->draw_index = LLVMGetParam(ctx->main_function, arg_idx++);
}
if (ctx->options->key.vs.as_es)
ctx->es2gs_offset = LLVMGetParam(ctx->main_function, arg_idx++);
@ -3263,6 +3266,9 @@ static void visit_intrinsic(struct nir_to_llvm_context *ctx,
case nir_intrinsic_load_base_instance:
result = ctx->start_instance;
break;
case nir_intrinsic_load_draw_id:
result = ctx->draw_index;
break;
case nir_intrinsic_load_invocation_id:
result = ctx->gs_invocation_id;
break;