ast: Add InterpolateDecoration and related enums
Bug: tint:746 Change-Id: Ifd0de8b0e4400a153e67a8e301a7d0523e75898a Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56240 Auto-Submit: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Commit-Queue: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com>
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@ -368,6 +368,8 @@ libtint_source_set("libtint_core_all_src") {
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"ast/int_literal.h",
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"ast/int_literal.h",
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"ast/internal_decoration.cc",
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"ast/internal_decoration.cc",
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"ast/internal_decoration.h",
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"ast/internal_decoration.h",
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"ast/interpolate_decoration.cc",
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"ast/interpolate_decoration.h",
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"ast/literal.cc",
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"ast/literal.cc",
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"ast/literal.h",
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"ast/literal.h",
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"ast/location_decoration.cc",
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"ast/location_decoration.cc",
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@ -112,6 +112,8 @@ set(TINT_LIB_SRCS
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ast/int_literal.h
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ast/int_literal.h
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ast/internal_decoration.cc
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ast/internal_decoration.cc
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ast/internal_decoration.h
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ast/internal_decoration.h
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ast/interpolate_decoration.cc
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ast/interpolate_decoration.h
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ast/literal.cc
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ast/literal.cc
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ast/literal.h
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ast/literal.h
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ast/location_decoration.cc
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ast/location_decoration.cc
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@ -554,6 +556,7 @@ if(${TINT_BUILD_TESTS})
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ast/identifier_expression_test.cc
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ast/identifier_expression_test.cc
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ast/if_statement_test.cc
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ast/if_statement_test.cc
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ast/int_literal_test.cc
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ast/int_literal_test.cc
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ast/interpolate_decoration_test.cc
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ast/intrinsic_texture_helper_test.cc
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ast/intrinsic_texture_helper_test.cc
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ast/intrinsic_texture_helper_test.h
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ast/intrinsic_texture_helper_test.h
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ast/location_decoration_test.cc
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ast/location_decoration_test.cc
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@ -0,0 +1,93 @@
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// Copyright 2021 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/ast/interpolate_decoration.h"
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#include <string>
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#include "src/program_builder.h"
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TINT_INSTANTIATE_TYPEINFO(tint::ast::InterpolateDecoration);
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namespace tint {
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namespace ast {
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InterpolateDecoration::InterpolateDecoration(ProgramID program_id,
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const Source& source,
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InterpolationType type,
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InterpolationSampling sampling)
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: Base(program_id, source), type_(type), sampling_(sampling) {}
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InterpolateDecoration::~InterpolateDecoration() = default;
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std::string InterpolateDecoration::name() const {
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return "interpolate";
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}
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void InterpolateDecoration::to_str(const sem::Info&,
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std::ostream& out,
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size_t indent) const {
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make_indent(out, indent);
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out << "InterpolateDecoration{" << type_ << " " << sampling_ << "}"
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<< std::endl;
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}
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InterpolateDecoration* InterpolateDecoration::Clone(CloneContext* ctx) const {
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// Clone arguments outside of create() call to have deterministic ordering
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auto src = ctx->Clone(source());
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return ctx->dst->create<InterpolateDecoration>(src, type_, sampling_);
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}
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std::ostream& operator<<(std::ostream& out, InterpolationType type) {
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switch (type) {
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case InterpolationType::kPerspective: {
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out << "perspective";
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break;
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}
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case InterpolationType::kLinear: {
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out << "linear";
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break;
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}
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case InterpolationType::kFlat: {
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out << "flat";
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break;
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}
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}
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return out;
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}
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std::ostream& operator<<(std::ostream& out, InterpolationSampling sampling) {
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switch (sampling) {
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case InterpolationSampling::kNone: {
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out << "none";
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break;
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}
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case InterpolationSampling::kCenter: {
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out << "center";
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break;
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}
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case InterpolationSampling::kCentroid: {
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out << "centroid";
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break;
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}
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case InterpolationSampling::kSample: {
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out << "sample";
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break;
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}
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}
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return out;
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}
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} // namespace ast
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} // namespace tint
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@ -0,0 +1,88 @@
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// Copyright 2021 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_AST_INTERPOLATE_DECORATION_H_
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#define SRC_AST_INTERPOLATE_DECORATION_H_
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#include <ostream>
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#include <string>
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#include "src/ast/decoration.h"
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namespace tint {
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namespace ast {
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/// The interpolation type.
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enum class InterpolationType { kPerspective, kLinear, kFlat };
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/// The interpolation sampling.
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enum class InterpolationSampling { kNone = -1, kCenter, kCentroid, kSample };
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/// An interpolate decoration
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class InterpolateDecoration
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: public Castable<InterpolateDecoration, Decoration> {
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public:
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/// Create an interpolate decoration.
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/// @param program_id the identifier of the program that owns this node
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/// @param source the source of this decoration
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/// @param type the interpolation type
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/// @param sampling the interpolation sampling
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InterpolateDecoration(ProgramID program_id,
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const Source& source,
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InterpolationType type,
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InterpolationSampling sampling);
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~InterpolateDecoration() override;
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/// @returns the interpolation type
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InterpolationType type() const { return type_; }
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/// @returns the interpolation sampling
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InterpolationSampling sampling() const { return sampling_; }
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/// @returns the WGSL name for the decoration
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std::string name() const override;
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/// Outputs the decoration to the given stream
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/// @param sem the semantic info for the program
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/// @param out the stream to write to
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/// @param indent number of spaces to indent the node when writing
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void to_str(const sem::Info& sem,
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std::ostream& out,
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size_t indent) const override;
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/// Clones this node and all transitive child nodes using the `CloneContext`
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/// `ctx`.
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/// @param ctx the clone context
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/// @return the newly cloned node
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InterpolateDecoration* Clone(CloneContext* ctx) const override;
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private:
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InterpolationType const type_;
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InterpolationSampling const sampling_;
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};
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/// @param out the std::ostream to write to
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/// @param type the interpolation type
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/// @return the std::ostream so calls can be chained
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std::ostream& operator<<(std::ostream& out, InterpolationType type);
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/// @param out the std::ostream to write to
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/// @param sampling the interpolation sampling
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/// @return the std::ostream so calls can be chained
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std::ostream& operator<<(std::ostream& out, InterpolationSampling sampling);
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} // namespace ast
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} // namespace tint
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#endif // SRC_AST_INTERPOLATE_DECORATION_H_
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@ -0,0 +1,41 @@
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// Copyright 2021 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/ast/interpolate_decoration.h"
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#include "src/ast/test_helper.h"
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namespace tint {
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namespace ast {
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namespace {
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using InterpolateDecorationTest = TestHelper;
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TEST_F(InterpolateDecorationTest, Creation) {
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auto* d = create<InterpolateDecoration>(InterpolationType::kLinear,
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InterpolationSampling::kCenter);
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EXPECT_EQ(InterpolationType::kLinear, d->type());
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EXPECT_EQ(InterpolationSampling::kCenter, d->sampling());
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}
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TEST_F(InterpolateDecorationTest, ToStr) {
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auto* d = create<InterpolateDecoration>(InterpolationType::kPerspective,
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InterpolationSampling::kSample);
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EXPECT_EQ(str(d), R"(InterpolateDecoration{perspective sample}
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)");
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}
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} // namespace
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} // namespace ast
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} // namespace tint
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@ -175,6 +175,7 @@ tint_unittests_source_set("tint_unittests_core_src") {
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"../src/ast/identifier_expression_test.cc",
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"../src/ast/identifier_expression_test.cc",
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"../src/ast/if_statement_test.cc",
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"../src/ast/if_statement_test.cc",
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"../src/ast/int_literal_test.cc",
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"../src/ast/int_literal_test.cc",
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"../src/ast/interpolate_decoration_test.cc",
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"../src/ast/intrinsic_texture_helper_test.cc",
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"../src/ast/intrinsic_texture_helper_test.cc",
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"../src/ast/intrinsic_texture_helper_test.h",
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"../src/ast/intrinsic_texture_helper_test.h",
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"../src/ast/location_decoration_test.cc",
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"../src/ast/location_decoration_test.cc",
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