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-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.h3
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_visitor.cpp138
2 files changed, 71 insertions, 70 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index 1d9c6863f3b..8c547ac797f 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -306,10 +306,13 @@ public:
void emit_interpolation_setup_gen6();
fs_reg emit_texcoord(ir_texture *ir, int sampler);
fs_inst *emit_texture_gen4(ir_texture *ir, fs_reg dst, fs_reg coordinate,
+ fs_reg shadow_comp, fs_reg lod, fs_reg lod2,
int sampler);
fs_inst *emit_texture_gen5(ir_texture *ir, fs_reg dst, fs_reg coordinate,
+ fs_reg shadow_comp, fs_reg lod, fs_reg lod2,
int sampler);
fs_inst *emit_texture_gen7(ir_texture *ir, fs_reg dst, fs_reg coordinate,
+ fs_reg shadow_comp, fs_reg lod, fs_reg lod2,
int sampler);
fs_inst *emit_math(enum opcode op, fs_reg dst, fs_reg src0);
fs_inst *emit_math(enum opcode op, fs_reg dst, fs_reg src0, fs_reg src1);
diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
index 62668639686..f5090fae3c1 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
@@ -702,6 +702,7 @@ fs_visitor::visit(ir_assignment *ir)
fs_inst *
fs_visitor::emit_texture_gen4(ir_texture *ir, fs_reg dst, fs_reg coordinate,
+ fs_reg shadow_c, fs_reg lod, fs_reg dPdy,
int sampler)
{
int mlen;
@@ -726,19 +727,14 @@ fs_visitor::emit_texture_gen4(ir_texture *ir, fs_reg dst, fs_reg coordinate,
*/
emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), fs_reg(0.0f));
mlen++;
- } else if (ir->op == ir_txb) {
- ir->lod_info.bias->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), this->result);
+ } else if (ir->op == ir_txb || ir->op == ir_txl) {
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), lod);
mlen++;
} else {
- assert(ir->op == ir_txl);
- ir->lod_info.lod->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), this->result);
- mlen++;
+ assert(!"Should not get here.");
}
- ir->shadow_comparitor->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), this->result);
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), shadow_c);
mlen++;
} else if (ir->op == ir_tex) {
for (int i = 0; i < ir->coordinate->type->vector_elements; i++) {
@@ -748,11 +744,7 @@ fs_visitor::emit_texture_gen4(ir_texture *ir, fs_reg dst, fs_reg coordinate,
/* gen4's SIMD8 sampler always has the slots for u,v,r present. */
mlen += 3;
} else if (ir->op == ir_txd) {
- ir->lod_info.grad.dPdx->accept(this);
- fs_reg dPdx = this->result;
-
- ir->lod_info.grad.dPdy->accept(this);
- fs_reg dPdy = this->result;
+ fs_reg &dPdx = lod;
for (int i = 0; i < ir->coordinate->type->vector_elements; i++) {
emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen + i), coordinate);
@@ -789,8 +781,7 @@ fs_visitor::emit_texture_gen4(ir_texture *ir, fs_reg dst, fs_reg coordinate,
} else if (ir->op == ir_txs) {
/* There's no SIMD8 resinfo message on Gen4. Use SIMD16 instead. */
simd16 = true;
- ir->lod_info.lod->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen, BRW_REGISTER_TYPE_UD), this->result);
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen, BRW_REGISTER_TYPE_UD), lod);
mlen += 2;
} else {
/* Oh joy. gen4 doesn't have SIMD8 non-shadow-compare bias/lod
@@ -815,16 +806,8 @@ fs_visitor::emit_texture_gen4(ir_texture *ir, fs_reg dst, fs_reg coordinate,
/* lod/bias appears after u/v/r. */
mlen += 6;
- if (ir->op == ir_txb) {
- ir->lod_info.bias->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), this->result);
- mlen++;
- } else {
- ir->lod_info.lod->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen, this->result.type),
- this->result);
- mlen++;
- }
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen, lod.type), lod);
+ mlen++;
/* The unused upper half. */
mlen++;
@@ -889,6 +872,7 @@ fs_visitor::emit_texture_gen4(ir_texture *ir, fs_reg dst, fs_reg coordinate,
*/
fs_inst *
fs_visitor::emit_texture_gen5(ir_texture *ir, fs_reg dst, fs_reg coordinate,
+ fs_reg shadow_c, fs_reg lod, fs_reg lod2,
int sampler)
{
int mlen = 0;
@@ -934,8 +918,7 @@ fs_visitor::emit_texture_gen5(ir_texture *ir, fs_reg dst, fs_reg coordinate,
if (ir->shadow_comparitor) {
mlen = MAX2(mlen, header_present + 4 * reg_width);
- ir->shadow_comparitor->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), this->result);
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), shadow_c);
mlen += reg_width;
}
@@ -945,29 +928,20 @@ fs_visitor::emit_texture_gen5(ir_texture *ir, fs_reg dst, fs_reg coordinate,
inst = emit(SHADER_OPCODE_TEX, dst);
break;
case ir_txb:
- ir->lod_info.bias->accept(this);
mlen = MAX2(mlen, header_present + 4 * reg_width);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), this->result);
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), lod);
mlen += reg_width;
inst = emit(FS_OPCODE_TXB, dst);
-
break;
case ir_txl:
- ir->lod_info.lod->accept(this);
mlen = MAX2(mlen, header_present + 4 * reg_width);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), this->result);
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), lod);
mlen += reg_width;
inst = emit(SHADER_OPCODE_TXL, dst);
break;
case ir_txd: {
- ir->lod_info.grad.dPdx->accept(this);
- fs_reg dPdx = this->result;
-
- ir->lod_info.grad.dPdy->accept(this);
- fs_reg dPdy = this->result;
-
mlen = MAX2(mlen, header_present + 4 * reg_width); /* skip over 'ai' */
/**
@@ -980,12 +954,12 @@ fs_visitor::emit_texture_gen5(ir_texture *ir, fs_reg dst, fs_reg coordinate,
* - dPdx.x dPdy.x dPdx.y dPdy.y dPdx.z dPdy.z
*/
for (int i = 0; i < ir->lod_info.grad.dPdx->type->vector_elements; i++) {
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), dPdx);
- dPdx.reg_offset++;
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), lod);
+ lod.reg_offset++;
mlen += reg_width;
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), dPdy);
- dPdy.reg_offset++;
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), lod2);
+ lod2.reg_offset++;
mlen += reg_width;
}
@@ -993,18 +967,16 @@ fs_visitor::emit_texture_gen5(ir_texture *ir, fs_reg dst, fs_reg coordinate,
break;
}
case ir_txs:
- ir->lod_info.lod->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen, BRW_REGISTER_TYPE_UD), this->result);
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen, BRW_REGISTER_TYPE_UD), lod);
mlen += reg_width;
inst = emit(SHADER_OPCODE_TXS, dst);
break;
case ir_txf:
mlen = header_present + 4 * reg_width;
- ir->lod_info.lod->accept(this);
emit(BRW_OPCODE_MOV,
fs_reg(MRF, base_mrf + mlen - reg_width, BRW_REGISTER_TYPE_UD),
- this->result);
+ lod);
inst = emit(SHADER_OPCODE_TXF, dst);
break;
}
@@ -1021,6 +993,7 @@ fs_visitor::emit_texture_gen5(ir_texture *ir, fs_reg dst, fs_reg coordinate,
fs_inst *
fs_visitor::emit_texture_gen7(ir_texture *ir, fs_reg dst, fs_reg coordinate,
+ fs_reg shadow_c, fs_reg lod, fs_reg lod2,
int sampler)
{
int mlen = 0;
@@ -1039,8 +1012,7 @@ fs_visitor::emit_texture_gen7(ir_texture *ir, fs_reg dst, fs_reg coordinate,
}
if (ir->shadow_comparitor) {
- ir->shadow_comparitor->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), this->result);
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), shadow_c);
mlen += reg_width;
}
@@ -1049,25 +1021,17 @@ fs_visitor::emit_texture_gen7(ir_texture *ir, fs_reg dst, fs_reg coordinate,
case ir_tex:
break;
case ir_txb:
- ir->lod_info.bias->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), this->result);
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), lod);
mlen += reg_width;
break;
case ir_txl:
- ir->lod_info.lod->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), this->result);
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), lod);
mlen += reg_width;
break;
case ir_txd: {
if (c->dispatch_width == 16)
fail("Gen7 does not support sample_d/sample_d_c in SIMD16 mode.");
- ir->lod_info.grad.dPdx->accept(this);
- fs_reg dPdx = this->result;
-
- ir->lod_info.grad.dPdy->accept(this);
- fs_reg dPdy = this->result;
-
/* Load dPdx and the coordinate together:
* [hdr], [ref], x, dPdx.x, dPdy.x, y, dPdx.y, dPdy.y, z, dPdx.z, dPdy.z
*/
@@ -1076,19 +1040,18 @@ fs_visitor::emit_texture_gen7(ir_texture *ir, fs_reg dst, fs_reg coordinate,
coordinate.reg_offset++;
mlen += reg_width;
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), dPdx);
- dPdx.reg_offset++;
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), lod);
+ lod.reg_offset++;
mlen += reg_width;
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), dPdy);
- dPdy.reg_offset++;
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), lod2);
+ lod2.reg_offset++;
mlen += reg_width;
}
break;
}
case ir_txs:
- ir->lod_info.lod->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen, BRW_REGISTER_TYPE_UD), this->result);
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen, BRW_REGISTER_TYPE_UD), lod);
mlen += reg_width;
break;
case ir_txf:
@@ -1112,8 +1075,7 @@ fs_visitor::emit_texture_gen7(ir_texture *ir, fs_reg dst, fs_reg coordinate,
coordinate.reg_offset++;
mlen += reg_width;
- ir->lod_info.lod->accept(this);
- emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen, BRW_REGISTER_TYPE_D), this->result);
+ emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen, BRW_REGISTER_TYPE_D), lod);
mlen += reg_width;
for (int i = 1; i < ir->coordinate->type->vector_elements; i++) {
@@ -1284,19 +1246,55 @@ fs_visitor::visit(ir_texture *ir)
/* Should be lowered by do_lower_texture_projection */
assert(!ir->projector);
+ /* Generate code to compute all the subexpression trees. This has to be
+ * done before loading any values into MRFs for the sampler message since
+ * generating these values may involve SEND messages that need the MRFs.
+ */
fs_reg coordinate = emit_texcoord(ir, sampler);
+ fs_reg shadow_comparitor;
+ if (ir->shadow_comparitor) {
+ ir->shadow_comparitor->accept(this);
+ shadow_comparitor = this->result;
+ }
+
+ fs_reg lod, lod2;
+ switch (ir->op) {
+ case ir_tex:
+ break;
+ case ir_txb:
+ ir->lod_info.bias->accept(this);
+ lod = this->result;
+ break;
+ case ir_txd:
+ ir->lod_info.grad.dPdx->accept(this);
+ lod = this->result;
+
+ ir->lod_info.grad.dPdy->accept(this);
+ lod2 = this->result;
+ break;
+ case ir_txf:
+ case ir_txl:
+ case ir_txs:
+ ir->lod_info.lod->accept(this);
+ lod = this->result;
+ break;
+ };
+
/* Writemasking doesn't eliminate channels on SIMD8 texture
* samples, so don't worry about them.
*/
fs_reg dst = fs_reg(this, glsl_type::get_instance(ir->type->base_type, 4, 1));
if (intel->gen >= 7) {
- inst = emit_texture_gen7(ir, dst, coordinate, sampler);
+ inst = emit_texture_gen7(ir, dst, coordinate, shadow_comparitor,
+ lod, lod2, sampler);
} else if (intel->gen >= 5) {
- inst = emit_texture_gen5(ir, dst, coordinate, sampler);
+ inst = emit_texture_gen5(ir, dst, coordinate, shadow_comparitor,
+ lod, lod2, sampler);
} else {
- inst = emit_texture_gen4(ir, dst, coordinate, sampler);
+ inst = emit_texture_gen4(ir, dst, coordinate, shadow_comparitor,
+ lod, lod2, sampler);
}
/* The header is set up by generate_tex() when necessary. */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 17:57:37 +0000