From bae929f96ee57ec55d15fae87bf80c45a8bd7e4d Mon Sep 17 00:00:00 2001 From: =?utf8?q?Nicolai=20H=C3=A4hnle?= Date: Tue, 29 Nov 2016 16:03:56 +0100 Subject: [PATCH] radeonsi: fetch only outputs of current vertex stream from the GSVS ring MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Reviewed-by: Marek Olšák --- src/gallium/drivers/radeonsi/si_shader.c | 41 +++++++++++++++--------- 1 file changed, 25 insertions(+), 16 deletions(-) diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index daff6296c94..31a0b3047c1 100644 --- a/src/gallium/drivers/radeonsi/si_shader.c +++ b/src/gallium/drivers/radeonsi/si_shader.c @@ -6396,28 +6396,14 @@ si_generate_gs_copy_shader(struct si_screen *sscreen, else stream_id = uint->zero; - /* Fetch vertex data from GSVS ring */ + /* Fill in output information. */ for (i = 0; i < gsinfo->num_outputs; ++i) { - unsigned chan; - outputs[i].semantic_name = gsinfo->output_semantic_name[i]; outputs[i].semantic_index = gsinfo->output_semantic_index[i]; - for (chan = 0; chan < 4; chan++) { + for (int chan = 0; chan < 4; chan++) { outputs[i].vertex_stream[chan] = (gsinfo->output_streams[i] >> (2 * chan)) & 3; - - args[2] = lp_build_const_int32(gallivm, - (i * 4 + chan) * - gs_selector->gs_max_out_vertices * 16 * 4); - - outputs[i].values[chan] = - LLVMBuildBitCast(gallivm->builder, - lp_build_intrinsic(gallivm->builder, - "llvm.SI.buffer.load.dword.i32.i32", - ctx.i32, args, 9, - LP_FUNC_ATTR_READONLY), - ctx.f32, ""); } } @@ -6437,6 +6423,29 @@ si_generate_gs_copy_shader(struct si_screen *sscreen, lp_build_if(&if_ctx_stream, gallivm, is_stream); + /* Fetch vertex data from GSVS ring */ + for (i = 0; i < gsinfo->num_outputs; ++i) { + for (unsigned chan = 0; chan < 4; chan++) { + if (outputs[i].vertex_stream[chan] != stream) { + outputs[i].values[chan] = ctx.soa.bld_base.base.undef; + continue; + } + + args[2] = lp_build_const_int32( + gallivm, + (i * 4 + chan) * gs_selector->gs_max_out_vertices * 16 * 4); + + outputs[i].values[chan] = + LLVMBuildBitCast(gallivm->builder, + lp_build_intrinsic(gallivm->builder, + "llvm.SI.buffer.load.dword.i32.i32", + ctx.i32, args, 9, + LP_FUNC_ATTR_READONLY), + ctx.f32, ""); + } + } + + /* Streamout and exports. */ if (gs_selector->so.num_outputs) { si_llvm_emit_streamout(&ctx, outputs, gsinfo->num_outputs, -- 2.30.2