diff options
| author | Chris Forbes <[email protected]> | 2013-09-27 05:52:20 +1200 |
|---|---|---|
| committer | Chris Forbes <[email protected]> | 2013-10-05 19:16:33 +1300 |
| commit | 4be21a07eace673720a4121fb8b697d0a7cfab69 (patch) | |
| tree | b71216ce979559ad18bb3aaf0effeaae6100853a | |
| parent | fa6440acdb809682ddb3502c57f420f41ea2d3e2 (diff) | |
i965/vs: implement ir_query_levels
Signed-off-by: Chris Forbes <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp index 9e6cc785ba9..1112b23cc3b 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); + 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)); |