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Merge pull request #12487 from liamwhite/clip3 

shader_recompiler: use default value for clip distances array
This commit is contained in:
Fernando S 2023-12-30 06:54:44 +01:00 committed by GitHub
parent 12178c694a d0c60605ab
commit 8517d7cb44
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 38 additions and 22 deletions
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60
src/shader_recompiler/backend/spirv/spirv_emit_context.cpp
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@ -96,9 +96,9 @@ Id ImageType(EmitContext& ctx, const ImageDescriptor& desc, Id sampled_type) {
} }
Id DefineVariable(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin, Id DefineVariable(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin,
spv::StorageClass storage_class) { spv::StorageClass storage_class, std::optional<Id> initializer = std::nullopt) {
const Id pointer_type{ctx.TypePointer(storage_class, type)}; const Id pointer_type{ctx.TypePointer(storage_class, type)};
const Id id{ctx.AddGlobalVariable(pointer_type, storage_class)}; const Id id{ctx.AddGlobalVariable(pointer_type, storage_class, initializer)};
if (builtin) { if (builtin) {
ctx.Decorate(id, spv::Decoration::BuiltIn, *builtin); ctx.Decorate(id, spv::Decoration::BuiltIn, *builtin);
} }
@ -144,11 +144,12 @@ Id DefineInput(EmitContext& ctx, Id type, bool per_invocation,
} }
Id DefineOutput(EmitContext& ctx, Id type, std::optional<u32> invocations, Id DefineOutput(EmitContext& ctx, Id type, std::optional<u32> invocations,
std::optional<spv::BuiltIn> builtin = std::nullopt) { std::optional<spv::BuiltIn> builtin = std::nullopt,
std::optional<Id> initializer = std::nullopt) {
if (invocations && ctx.stage == Stage::TessellationControl) { if (invocations && ctx.stage == Stage::TessellationControl) {
type = ctx.TypeArray(type, ctx.Const(*invocations)); type = ctx.TypeArray(type, ctx.Const(*invocations));
} }
return DefineVariable(ctx, type, builtin, spv::StorageClass::Output); return DefineVariable(ctx, type, builtin, spv::StorageClass::Output, initializer);
} }
void DefineGenericOutput(EmitContext& ctx, size_t index, std::optional<u32> invocations) { void DefineGenericOutput(EmitContext& ctx, size_t index, std::optional<u32> invocations) {
@ -811,10 +812,14 @@ void EmitContext::DefineAttributeMemAccess(const Info& info) {
labels.push_back(OpLabel()); labels.push_back(OpLabel());
} }
if (info.stores.ClipDistances()) { if (info.stores.ClipDistances()) {
literals.push_back(static_cast<u32>(IR::Attribute::ClipDistance0) >> 2); if (profile.max_user_clip_distances >= 4) {
labels.push_back(OpLabel()); literals.push_back(static_cast<u32>(IR::Attribute::ClipDistance0) >> 2);
literals.push_back(static_cast<u32>(IR::Attribute::ClipDistance4) >> 2); labels.push_back(OpLabel());
labels.push_back(OpLabel()); }
if (profile.max_user_clip_distances >= 8) {
literals.push_back(static_cast<u32>(IR::Attribute::ClipDistance4) >> 2);
labels.push_back(OpLabel());
}
} }
OpSelectionMerge(end_block, spv::SelectionControlMask::MaskNone); OpSelectionMerge(end_block, spv::SelectionControlMask::MaskNone);
OpSwitch(compare_index, default_label, literals, labels); OpSwitch(compare_index, default_label, literals, labels);
@ -843,17 +848,21 @@ void EmitContext::DefineAttributeMemAccess(const Info& info) {
++label_index; ++label_index;
} }
if (info.stores.ClipDistances()) { if (info.stores.ClipDistances()) {
AddLabel(labels[label_index]); if (profile.max_user_clip_distances >= 4) {
const Id pointer{OpAccessChain(output_f32, clip_distances, masked_index)}; AddLabel(labels[label_index]);
OpStore(pointer, store_value); const Id pointer{OpAccessChain(output_f32, clip_distances, masked_index)};
OpReturn(); OpStore(pointer, store_value);
++label_index; OpReturn();
AddLabel(labels[label_index]); ++label_index;
const Id fixed_index{OpIAdd(U32[1], masked_index, Const(4U))}; }
const Id pointer2{OpAccessChain(output_f32, clip_distances, fixed_index)}; if (profile.max_user_clip_distances >= 8) {
OpStore(pointer2, store_value); AddLabel(labels[label_index]);
OpReturn(); const Id fixed_index{OpIAdd(U32[1], masked_index, Const(4U))};
++label_index; const Id pointer{OpAccessChain(output_f32, clip_distances, fixed_index)};
OpStore(pointer, store_value);
OpReturn();
++label_index;
}
} }
AddLabel(end_block); AddLabel(end_block);
OpUnreachable(); OpUnreachable();
@ -1532,9 +1541,16 @@ void EmitContext::DefineOutputs(const IR::Program& program) {
if (stage == Stage::Fragment) { if (stage == Stage::Fragment) {
throw NotImplementedException("Storing ClipDistance in fragment stage"); throw NotImplementedException("Storing ClipDistance in fragment stage");
} }
const Id type{TypeArray( if (profile.max_user_clip_distances > 0) {
F32[1], Const(std::min(info.used_clip_distances, profile.max_user_clip_distances)))}; const u32 used{std::min(profile.max_user_clip_distances, 8u)};
clip_distances = DefineOutput(*this, type, invocations, spv::BuiltIn::ClipDistance); const std::array<Id, 8> zero{f32_zero_value, f32_zero_value, f32_zero_value,
f32_zero_value, f32_zero_value, f32_zero_value,
f32_zero_value, f32_zero_value};
const Id type{TypeArray(F32[1], Const(used))};
const Id initializer{ConstantComposite(type, std::span(zero).subspan(0, used))};
clip_distances =
DefineOutput(*this, type, invocations, spv::BuiltIn::ClipDistance, initializer);
}
} }
if (info.stores[IR::Attribute::Layer] && if (info.stores[IR::Attribute::Layer] &&
(profile.support_viewport_index_layer_non_geometry || stage == Stage::Geometry)) { (profile.support_viewport_index_layer_non_geometry || stage == Stage::Geometry)) {