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glsl_to_tgsi: implement TXS/TXQ. (v2)

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GLSL uses TXS, call the gallium TXQ opcode.

v2: fix indent from 4->3.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Bryan Cain <bryancain3@gmail.com>
This commit is contained in:
Dave Airlie 2011-08-24 13:24:25 +01:00
parent 461646f539
commit 515d9e8880
1 changed files with 18 additions and 9 deletions
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27
src/mesa/state_tracker/st_glsl_to_tgsi.cpp
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@ -2426,16 +2426,18 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
glsl_to_tgsi_instruction *inst = NULL;
unsigned opcode = TGSI_OPCODE_NOP;
ir->coordinate->accept(this);
if (ir->coordinate) {
ir->coordinate->accept(this);
/* Put our coords in a temp. We'll need to modify them for shadow,
* projection, or LOD, so the only case we'd use it as is is if
* we're doing plain old texturing. The optimization passes on
* glsl_to_tgsi_visitor should handle cleaning up our mess in that case.
*/
coord = get_temp(glsl_type::vec4_type);
coord_dst = st_dst_reg(coord);
emit(ir, TGSI_OPCODE_MOV, coord_dst, this->result);
/* Put our coords in a temp. We'll need to modify them for shadow,
* projection, or LOD, so the only case we'd use it as is is if
* we're doing plain old texturing. The optimization passes on
* glsl_to_tgsi_visitor should handle cleaning up our mess in that case.
*/
coord = get_temp(glsl_type::vec4_type);
coord_dst = st_dst_reg(coord);
emit(ir, TGSI_OPCODE_MOV, coord_dst, this->result);
}
if (ir->projector) {
ir->projector->accept(this);
@ -2470,6 +2472,10 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
dy = this->result;
break;
case ir_txs:
opcode = TGSI_OPCODE_TXQ;
ir->lod_info.lod->accept(this);
lod_info = this->result;
break;
case ir_txf: /* TODO: use TGSI_OPCODE_TXF here */
assert(!"GLSL 1.30 features unsupported");
break;
@ -2544,6 +2550,8 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
if (opcode == TGSI_OPCODE_TXD)
inst = emit(ir, opcode, result_dst, coord, dx, dy);
else if (opcode == TGSI_OPCODE_TXQ)
inst = emit(ir, opcode, result_dst, lod_info);
else
inst = emit(ir, opcode, result_dst, coord);
@ -4276,6 +4284,7 @@ compile_tgsi_instruction(struct st_translate *t,
case TGSI_OPCODE_TXD:
case TGSI_OPCODE_TXL:
case TGSI_OPCODE_TXP:
case TGSI_OPCODE_TXQ:
src[num_src++] = t->samplers[inst->sampler];
ureg_tex_insn(ureg,
inst->op,