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i965/vs: Use samplers for UBOs in the VS like we do for non-UBO pulls.

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Improves performance of a dolphin emulator trace I had laying around by
3.60131% +/- 0.995887% (n=128).

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Eric Anholt 2014-02-14 16:06:31 -08:00
parent 9e3cab8881
commit 9245206cbf
1 changed files with 18 additions and 5 deletions
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23
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
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@ -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,