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ab9b5f3aa5
This CL implements f16 in uniform and storage address space, allowing using f16 types in uniform and storage buffers on all backends. Tint uint tests and Dawn E2E tests are added to validate the f16 types work as expected. Bug: tint:1473, tint:1502 Change-Id: I15e3de1033d3727f2ea33f4657f682c5f13c2153 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/106320 Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com> Reviewed-by: Ben Clayton <bclayton@google.com>
50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
// Copyright 2022 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_TINT_TRANSFORM_STD140_H_
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#define SRC_TINT_TRANSFORM_STD140_H_
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#include "src/tint/transform/transform.h"
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namespace tint::transform {
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/// Std140 is a transform that forks types used in the uniform address space that contain
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/// `matNx2<f32>` matrices into `N`x`vec2<f32>` column vectors, and `matNxM<f16>` matrices into
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/// `N`x`vecM<f16>` column vectors. Types that transitively use these forked types are also forked.
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/// `var<uniform>` variables will use these forked types, and expressions loading from these
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/// variables will do appropriate conversions to the regular WGSL types. As `matNx2<f32>` and
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/// `matNxM<f16>` matrices are the only type that violate std140-layout, this transformation is
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/// sufficient to have any WGSL structure be std140-layout conformant.
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///
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/// @note This transform requires the PromoteSideEffectsToDecl transform to have been run first.
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class Std140 final : public Castable<Std140, Transform> {
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public:
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/// Constructor
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Std140();
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/// Destructor
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~Std140() override;
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/// @copydoc Transform::Apply
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ApplyResult Apply(const Program* program,
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const DataMap& inputs,
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DataMap& outputs) const override;
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private:
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struct State;
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};
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} // namespace tint::transform
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#endif // SRC_TINT_TRANSFORM_STD140_H_
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