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i965/fs: Initial plumbing to support TXD. 

This adds the opcode and the code to convert ir_txd to OPCODE_TXD;
it doesn't actually add support yet.
This commit is contained in:
Kenneth Graunke 2011-02-24 17:49:07 -08:00
parent 2830b1ae90
commit 58f7c9c72e
2 changed files with 14 additions and 0 deletions
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12
src/mesa/drivers/dri/i965/brw_fs.cpp
View File

@ -213,6 +213,7 @@ fs_visitor::implied_mrf_writes(fs_inst *inst)
return 2;
case FS_OPCODE_TEX:
case FS_OPCODE_TXB:
case FS_OPCODE_TXD:
case FS_OPCODE_TXL:
return 1;
case FS_OPCODE_FB_WRITE:
@ -1200,6 +1201,8 @@ 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) {
assert(!"TXD isn't supported on gen4 yet.");
} else {
/* Oh joy. gen4 doesn't have SIMD8 non-shadow-compare bias/lod
* instructions. We'll need to do SIMD16 here.
@ -1253,6 +1256,8 @@ fs_visitor::emit_texture_gen4(ir_texture *ir, fs_reg dst, fs_reg coordinate)
inst = emit(fs_inst(FS_OPCODE_TXL, dst));
break;
case ir_txd:
inst = emit(fs_inst(FS_OPCODE_TXD, dst));
break;
case ir_txf:
assert(!"GLSL 1.30 features unsupported");
break;
@ -2315,6 +2320,9 @@ fs_visitor::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src)
msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_LOD_GEN5;
}
break;
case FS_OPCODE_TXD:
assert(!"TXD isn't supported on gen5+ yet.");
break;
}
} else {
switch (inst->opcode) {
@ -2349,6 +2357,9 @@ fs_visitor::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src)
simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD16;
}
break;
case FS_OPCODE_TXD:
assert(!"TXD isn't supported on gen4 yet.");
break;
}
}
assert(msg_type != -1);
@ -3624,6 +3635,7 @@ fs_visitor::generate_code()
break;
case FS_OPCODE_TEX:
case FS_OPCODE_TXB:
case FS_OPCODE_TXD:
case FS_OPCODE_TXL:
generate_tex(inst, dst, src[0]);
break;

2
src/mesa/drivers/dri/i965/brw_fs.h
View File

@ -71,6 +71,7 @@ enum fs_opcodes {
FS_OPCODE_LINTERP,
FS_OPCODE_TEX,
FS_OPCODE_TXB,
FS_OPCODE_TXD,
FS_OPCODE_TXL,
FS_OPCODE_DISCARD_NOT,
FS_OPCODE_DISCARD_AND,
@ -309,6 +310,7 @@ public:
{
return (opcode == FS_OPCODE_TEX ||
opcode == FS_OPCODE_TXB ||
opcode == FS_OPCODE_TXD ||
opcode == FS_OPCODE_TXL);
}