2013/10/5 Chris Forbes <chr...@ijw.co.nz> > Signed-off-by: Chris Forbes <chr...@ijw.co.nz> > --- > src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 15 ++++++++++++++- > 1 file changed, 14 insertions(+), 1 deletion(-) > > diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp > b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp > index 9e6cc78..1112b23 100644 > --- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp > +++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp > @@ -2192,6 +2192,10 @@ vec4_visitor::visit(ir_texture *ir) > lod = this->result; > lod_type = ir->lod_info.lod->type; > break; > + case ir_query_levels: > + lod = src_reg(0); > + lod_type = glsl_type::int_type; > + break; > case ir_txf_ms: > ir->lod_info.sample_index->accept(this); > sample_index = this->result; > @@ -2232,6 +2236,8 @@ vec4_visitor::visit(ir_texture *ir) > break; > case ir_tg4: > inst = new(mem_ctx) vec4_instruction(this, SHADER_OPCODE_TG4); >
I think you are missing a "break;" here. > + case ir_query_levels: > + inst = new(mem_ctx) vec4_instruction(this, SHADER_OPCODE_TXS); > break; > case ir_txb: > assert(!"TXB is not valid for vertex shaders."); > @@ -2264,7 +2270,7 @@ vec4_visitor::visit(ir_texture *ir) > /* MRF for the first parameter */ > int param_base = inst->base_mrf + inst->header_present; > > - if (ir->op == ir_txs) { > + if (ir->op == ir_txs || ir->op == ir_query_levels) { > int writemask = brw->gen == 4 ? WRITEMASK_W : WRITEMASK_X; > emit(MOV(dst_reg(MRF, param_base, lod_type, writemask), lod)); > } else { > @@ -2415,6 +2421,13 @@ vec4_visitor::swizzle_result(ir_texture *ir, > src_reg orig_val, int sampler) > this->result = src_reg(this, ir->type); > dst_reg swizzled_result(this->result); > > + if (ir->op == ir_query_levels) { > + /* # levels is in .w */ > + orig_val.swizzle = BRW_SWIZZLE4(SWIZZLE_W, SWIZZLE_W, SWIZZLE_W, > SWIZZLE_W); > + emit(MOV(swizzled_result, orig_val)); > + return; > + } > + > if (ir->op == ir_txs || ir->type == glsl_type::float_type > || s == SWIZZLE_NOOP || ir->op == ir_tg4) { > emit(MOV(swizzled_result, orig_val)); > -- > 1.8.4 > > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/mesa-dev > >
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