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-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.h4
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_generator.cpp28
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_visitor.cpp68
3 files changed, 90 insertions, 10 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index 278a8eed76d..cfdbf555d62 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -271,6 +271,10 @@ public:
fs_reg shadow_comp,
fs_reg lod, fs_reg lod2, int grad_components,
uint32_t sampler);
+ fs_inst *emit_texture_gen4_simd16(ir_texture_opcode op, fs_reg dst,
+ fs_reg coordinate, int vector_elements,
+ fs_reg shadow_c, fs_reg lod,
+ uint32_t sampler);
fs_inst *emit_texture_gen5(ir_texture_opcode op, fs_reg dst,
fs_reg coordinate, int coord_components,
fs_reg shadow_comp,
diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index 40e51aa0f82..2743297b053 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -622,16 +622,26 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
/* Note that G45 and older determines shadow compare and dispatch width
* from message length for most messages.
*/
- assert(dispatch_width == 8);
- msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE;
- if (inst->shadow_compare) {
- assert(inst->mlen == 6);
- } else {
- assert(inst->mlen <= 4);
- }
+ if (dispatch_width == 8) {
+ msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE;
+ if (inst->shadow_compare) {
+ assert(inst->mlen == 6);
+ } else {
+ assert(inst->mlen <= 4);
+ }
+ } else {
+ if (inst->shadow_compare) {
+ msg_type = BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE_COMPARE;
+ assert(inst->mlen == 9);
+ } else {
+ msg_type = BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE;
+ assert(inst->mlen <= 7 && inst->mlen % 2 == 1);
+ }
+ }
break;
case FS_OPCODE_TXB:
if (inst->shadow_compare) {
+ assert(dispatch_width == 8);
assert(inst->mlen == 6);
msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE_BIAS_COMPARE;
} else {
@@ -642,6 +652,7 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
break;
case SHADER_OPCODE_TXL:
if (inst->shadow_compare) {
+ assert(dispatch_width == 8);
assert(inst->mlen == 6);
msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE_LOD_COMPARE;
} else {
@@ -652,11 +663,12 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
break;
case SHADER_OPCODE_TXD:
/* There is no sample_d_c message; comparisons are done manually */
+ assert(dispatch_width == 8);
assert(inst->mlen == 7 || inst->mlen == 10);
msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE_GRADIENTS;
break;
case SHADER_OPCODE_TXF:
- assert(inst->mlen == 9);
+ assert(inst->mlen <= 9 && inst->mlen % 2 == 1);
msg_type = BRW_SAMPLER_MESSAGE_SIMD16_LD;
simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD16;
break;
diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
index c538dcff42a..3622e651818 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
@@ -1433,8 +1433,6 @@ fs_visitor::emit_texture_gen4(ir_texture_opcode op, fs_reg dst,
bool simd16 = false;
fs_reg orig_dst;
- no16("SIMD16 texturing on Gen4 not supported yet.");
-
/* g0 header. */
mlen = 1;
@@ -1586,6 +1584,69 @@ fs_visitor::emit_texture_gen4(ir_texture_opcode op, fs_reg dst,
return inst;
}
+fs_inst *
+fs_visitor::emit_texture_gen4_simd16(ir_texture_opcode op, fs_reg dst,
+ fs_reg coordinate, int vector_elements,
+ fs_reg shadow_c, fs_reg lod,
+ uint32_t sampler)
+{
+ fs_reg message(MRF, 2, BRW_REGISTER_TYPE_F, dispatch_width);
+ bool has_lod = op == ir_txl || op == ir_txb || op == ir_txf;
+
+ if (has_lod && shadow_c.file != BAD_FILE)
+ no16("TXB and TXL with shadow comparison unsupported in SIMD16.");
+
+ if (op == ir_txd)
+ no16("textureGrad unsupported in SIMD16.");
+
+ /* Copy the coordinates. */
+ for (int i = 0; i < vector_elements; i++) {
+ emit(MOV(retype(offset(message, i), coordinate.type), coordinate));
+ coordinate = offset(coordinate, 1);
+ }
+
+ fs_reg msg_end = offset(message, vector_elements);
+
+ /* Messages other than sample and ld require all three components */
+ if (has_lod || shadow_c.file != BAD_FILE) {
+ for (int i = vector_elements; i < 3; i++) {
+ emit(MOV(offset(message, i), fs_reg(0.0f)));
+ }
+ }
+
+ if (has_lod) {
+ fs_reg msg_lod = retype(offset(message, 3), op == ir_txf ?
+ BRW_REGISTER_TYPE_UD : BRW_REGISTER_TYPE_F);
+ emit(MOV(msg_lod, lod));
+ msg_end = offset(msg_lod, 1);
+ }
+
+ if (shadow_c.file != BAD_FILE) {
+ fs_reg msg_ref = offset(message, 3 + has_lod);
+ emit(MOV(msg_ref, shadow_c));
+ msg_end = offset(msg_ref, 1);
+ }
+
+ enum opcode opcode;
+ switch (op) {
+ case ir_tex: opcode = SHADER_OPCODE_TEX; break;
+ case ir_txb: opcode = FS_OPCODE_TXB; break;
+ case ir_txd: opcode = SHADER_OPCODE_TXD; break;
+ case ir_txl: opcode = SHADER_OPCODE_TXL; break;
+ case ir_txs: opcode = SHADER_OPCODE_TXS; break;
+ case ir_txf: opcode = SHADER_OPCODE_TXF; break;
+ default: unreachable("not reached");
+ }
+
+ fs_inst *inst = emit(opcode, dst, reg_undef, fs_reg(sampler));
+ inst->base_mrf = message.reg - 1;
+ inst->mlen = msg_end.reg - inst->base_mrf;
+ inst->header_present = true;
+ inst->regs_written = 8;
+
+ return inst;
+}
+
/* gen5's sampler has slots for u, v, r, array index, then optional
* parameters like shadow comparitor or LOD bias. If optional
* parameters aren't present, those base slots are optional and don't
@@ -2148,6 +2209,9 @@ fs_visitor::emit_texture(ir_texture_opcode op,
shadow_c, lod, lod2, grad_components,
sample_index, sampler,
offset_value.file != BAD_FILE);
+ } else if (dispatch_width == 16) {
+ inst = emit_texture_gen4_simd16(op, dst, coordinate, coord_components,
+ shadow_c, lod, sampler);
} else {
inst = emit_texture_gen4(op, dst, coordinate, coord_components,
shadow_c, lod, lod2, grad_components,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 09:23:32 +0000