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1 // Copyright (c) 2020 André Perez Maselco
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 //     http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #ifndef SOURCE_FUZZ_TRANSFORMATION_ADD_IMAGE_SAMPLE_UNUSED_COMPONENTS_H_
16 #define SOURCE_FUZZ_TRANSFORMATION_ADD_IMAGE_SAMPLE_UNUSED_COMPONENTS_H_
17 
18 #include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
19 #include "source/fuzz/transformation.h"
20 #include "source/fuzz/transformation_context.h"
21 #include "source/opt/ir_context.h"
22 
23 namespace spvtools {
24 namespace fuzz {
25 
26 class TransformationAddImageSampleUnusedComponents : public Transformation {
27  public:
28   explicit TransformationAddImageSampleUnusedComponents(
29       protobufs::TransformationAddImageSampleUnusedComponents message);
30 
31   TransformationAddImageSampleUnusedComponents(
32       uint32_t coordinate_with_unused_components_id,
33       const protobufs::InstructionDescriptor& instruction_descriptor);
34 
35   // - |coordinate_with_unused_components_id| must identify a vector such that
36   //   the first components match the components of the image sample coordinate.
37   // - |message_.instruction_descriptor| must identify an image sample
38   //   instruction
39   bool IsApplicable(
40       opt::IRContext* ir_context,
41       const TransformationContext& transformation_context) const override;
42 
43   // Add unused components to an image sample coordinate by replacing the
44   // coordinate with |coordinate_with_unused_components_id|.
45   void Apply(opt::IRContext* ir_context,
46              TransformationContext* transformation_context) const override;
47 
48   std::unordered_set<uint32_t> GetFreshIds() const override;
49 
50   protobufs::Transformation ToMessage() const override;
51 
52  private:
53   protobufs::TransformationAddImageSampleUnusedComponents message_;
54 };
55 
56 }  // namespace fuzz
57 }  // namespace spvtools
58 
59 #endif  // SOURCE_FUZZ_TRANSFORMATION_ADD_IMAGE_SAMPLE_UNUSED_COMPONENTS_H_
60