From 9245206cbfaaa4e18c1f3715eebb5f281070d772 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Fri, 14 Feb 2014 16:06:31 -0800 Subject: i965/vs: Use samplers for UBOs in the VS like we do for non-UBO pulls. Improves performance of a dolphin emulator trace I had laying around by 3.60131% +/- 0.995887% (n=128). Reviewed-by: Kenneth Graunke --- src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) (limited to 'src') diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp index ba299be72de..601b364b295 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp @@ -1573,14 +1573,27 @@ vec4_visitor::visit(ir_expression *ir) emit(SHR(dst_reg(offset), op[1], src_reg(4))); } - vec4_instruction *pull = + if (brw->gen >= 7) { + dst_reg grf_offset = dst_reg(this, glsl_type::int_type); + grf_offset.type = offset.type; + + emit(MOV(grf_offset, offset)); + emit(new(mem_ctx) vec4_instruction(this, - VS_OPCODE_PULL_CONSTANT_LOAD, + VS_OPCODE_PULL_CONSTANT_LOAD_GEN7, dst_reg(packed_consts), surf_index, - offset)); - pull->base_mrf = 14; - pull->mlen = 1; + src_reg(grf_offset))); + } else { + vec4_instruction *pull = + emit(new(mem_ctx) vec4_instruction(this, + VS_OPCODE_PULL_CONSTANT_LOAD, + dst_reg(packed_consts), + surf_index, + offset)); + pull->base_mrf = 14; + pull->mlen = 1; + } packed_consts.swizzle = swizzle_for_size(ir->type->vector_elements); packed_consts.swizzle += BRW_SWIZZLE4(const_offset % 16 / 4, -- cgit v1.2.3