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glasm: Improve texture sampling instructions

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ReinUsesLisp 2021-05-16 17:54:43 -03:00 • committed by ameerj
parent db2f0f4108
commit bf2949df10
2 changed files with 70 additions and 50 deletions
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66
src/shader_recompiler/backend/glasm/emit_glasm_image.cpp
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@ -112,24 +112,46 @@ static std::string Texture([[maybe_unused]] EmitContext& ctx, IR::TextureInstInf
}
void EmitImageSampleImplicitLod(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
Register coords, Register bias_lc,
const IR::Value& coord, Register bias_lc,
[[maybe_unused]] const IR::Value& offset) {
const auto info{inst.Flags<IR::TextureInstInfo>()};
const auto sparse_inst{inst.GetAssociatedPseudoOperation(IR::Opcode::GetSparseFromOp)};
const std::string_view op{info.has_bias ? "TXB" : "TEX"};
const std::string_view lod_clamp{info.has_lod_clamp ? ".LODCLAMP" : ""};
const std::string_view sparse_mod{sparse_inst ? ".SPARSE" : ""};
const std::string_view lod_clamp_mod{info.has_lod_clamp ? ".LODCLAMP" : ""};
const std::string_view type{"2D"}; // FIXME
const std::string texture{Texture(ctx, info, index)};
std::string coord_vec{fmt::to_string(Register{ctx.reg_alloc.Consume(coord)})};
if (coord.InstRecursive()->HasUses()) {
// Move non-dead coords to a separate register, although this should never happen because
// vectors are only assembled for immediate texture instructions
ctx.Add("MOV.F RC,{};", coord_vec);
coord_vec = "RC";
}
const Register ret{ctx.reg_alloc.Define(inst)};
// FIXME
const bool separate{info.type == TextureType::ColorArrayCube};
if (separate) {
ctx.Add("{}.F{}{} {},{},{},{},2D;", op, lod_clamp, sparse_mod, ret, coords, bias_lc,
texture);
if (info.has_bias) {
if (info.type == TextureType::ColorArrayCube) {
ctx.Add("TXB.F{}{} {},{},{},{},ARRAYCUBE;", lod_clamp_mod, sparse_mod, ret, coord_vec,
bias_lc, texture);
} else {
if (info.has_lod_clamp) {
ctx.Add("MOV.F {}.w,{}.x;"
"TXB.F.LODCLAMP{} {},{},{}.y,{},{};",
coord_vec, bias_lc, sparse_mod, ret, coord_vec, bias_lc, texture, type);
} else {
ctx.Add("MOV.F {}.w,{}.x;"
"TXB.F{} {},{},{},{};",
coord_vec, bias_lc, sparse_mod, ret, coord_vec, texture, type);
}
}
} else {
ctx.Add("MOV.F {}.w,{}.x;"
"{}.F{}{} {},{},{},2D;",
coords, bias_lc, op, lod_clamp, sparse_mod, ret, coords, texture);
if (info.has_lod_clamp && info.type == TextureType::ColorArrayCube) {
ctx.Add("TEX.F.LODCLAMP{} {},{},{},{},ARRAYCUBE;", sparse_mod, ret, coord_vec, bias_lc,
texture);
} else {
ctx.Add("TEX.F{}{} {},{},{},{};", lod_clamp_mod, sparse_mod, ret, coord_vec, texture,
type);
}
}
if (sparse_inst) {
const Register sparse_ret{ctx.reg_alloc.Define(*sparse_inst)};
@ -142,7 +164,7 @@ void EmitImageSampleImplicitLod(EmitContext& ctx, IR::Inst& inst, const IR::Valu
void EmitImageSampleExplicitLod([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index,
[[maybe_unused]] Register coords, [[maybe_unused]] Register lod_lc,
[[maybe_unused]] Register coord, [[maybe_unused]] Register lod_lc,
[[maybe_unused]] const IR::Value& offset) {
throw NotImplementedException("GLASM instruction");
}
@ -150,8 +172,7 @@ void EmitImageSampleExplicitLod([[maybe_unused]] EmitContext& ctx, [[maybe_unuse
void EmitImageSampleDrefImplicitLod([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index,
[[maybe_unused]] Register coords,
[[maybe_unused]] Register dref,
[[maybe_unused]] Register coord, [[maybe_unused]] Register dref,
[[maybe_unused]] Register bias_lc,
[[maybe_unused]] const IR::Value& offset) {
throw NotImplementedException("GLASM instruction");
@ -160,22 +181,21 @@ void EmitImageSampleDrefImplicitLod([[maybe_unused]] EmitContext& ctx,
void EmitImageSampleDrefExplicitLod([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index,
[[maybe_unused]] Register coords,
[[maybe_unused]] Register dref,
[[maybe_unused]] Register coord, [[maybe_unused]] Register dref,
[[maybe_unused]] Register lod_lc,
[[maybe_unused]] const IR::Value& offset) {
throw NotImplementedException("GLASM instruction");
}
void EmitImageGather([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coords,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coord,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] const IR::Value& offset2) {
throw NotImplementedException("GLASM instruction");
}
void EmitImageGatherDref([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coords,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coord,
[[maybe_unused]] const IR::Value& offset,
[[maybe_unused]] const IR::Value& offset2,
[[maybe_unused]] Register dref) {
@ -183,7 +203,7 @@ void EmitImageGatherDref([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR:
}
void EmitImageFetch([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coords,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coord,
[[maybe_unused]] Register offset, [[maybe_unused]] Register lod,
[[maybe_unused]] Register ms) {
throw NotImplementedException("GLASM instruction");
@ -196,24 +216,24 @@ void EmitImageQueryDimensions([[maybe_unused]] EmitContext& ctx, [[maybe_unused]
}
void EmitImageQueryLod([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coords) {
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coord) {
throw NotImplementedException("GLASM instruction");
}
void EmitImageGradient([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coords,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coord,
[[maybe_unused]] Register derivates, [[maybe_unused]] Register offset,
[[maybe_unused]] Register lod_clamp) {
throw NotImplementedException("GLASM instruction");
}
void EmitImageRead([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coords) {
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coord) {
throw NotImplementedException("GLASM instruction");
}
void EmitImageWrite([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coords,
[[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coord,
[[maybe_unused]] Register color) {
throw NotImplementedException("GLASM instruction");
}