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Generate and validate all entry points individually. This is required since GLSL has separate shader files, and can only have a single "main" entry point. Bug: tint:1217 Change-Id: Ie5cb510aaef3b7c8a7573f5fa9446815284afecb Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/61920 Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Stephen White <senorblanco@chromium.org> Reviewed-by: Ben Clayton <bclayton@google.com>
75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
// 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_TRANSFORM_GLSL_H_
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#define SRC_TRANSFORM_GLSL_H_
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#include <string>
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#include "src/transform/transform.h"
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namespace tint {
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// Forward declarations
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class CloneContext;
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namespace transform {
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/// Glsl is a transform used to sanitize a Program for use with the Glsl writer.
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/// Passing a non-sanitized Program to the Glsl writer will result in undefined
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/// behavior.
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class Glsl : public Castable<Glsl, Transform> {
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public:
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/// Configuration options for the Glsl sanitizer transform.
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struct Config : public Castable<Data, transform::Data> {
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/// Constructor
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/// @param entry_point the root entry point function to generate
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/// @param disable_workgroup_init `true` to disable workgroup memory zero
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/// initialization
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explicit Config(const std::string& entry_point,
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bool disable_workgroup_init = false);
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/// Copy constructor
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Config(const Config&);
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/// Destructor
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~Config() override;
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/// GLSL generator wraps a single entry point in a main() function.
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std::string entry_point;
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/// Set to `true` to disable workgroup memory zero initialization
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bool disable_workgroup_init = false;
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};
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/// Constructor
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Glsl();
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~Glsl() override;
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/// Runs the transform on `program`, returning the transformation result.
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/// @param program the source program to transform
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/// @param data optional extra transform-specific data
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/// @returns the transformation result
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Output Run(const Program* program, const DataMap& data = {}) override;
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private:
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/// Add an empty shader entry point if none exist in the module.
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void AddEmptyEntryPoint(CloneContext& ctx) const;
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};
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} // namespace transform
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} // namespace tint
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#endif // SRC_TRANSFORM_GLSL_H_
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