1 // Copyright (c) 2019 Google LLC
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_FORCE_RENDER_RED_H_
16 #define SOURCE_FORCE_RENDER_RED_H_
17 
18 #include <vector>
19 
20 #include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
21 #include "spirv-tools/libspirv.hpp"
22 
23 namespace spvtools {
24 namespace fuzz {
25 
26 // Requires |binary_in| to be a valid SPIR-V module with Shader capability,
27 // containing an entry point with the Fragment execution model, and a single
28 // output variable of type vec4.
29 //
30 // Turns the body of this entry point into effectively:
31 //
32 // output_variable = vec4(1.0, 0.0, 0.0, 1.0);
33 // if (false) {
34 //    original_body
35 // }
36 //
37 // If suitable facts about values of uniforms are available, the 'false' will
38 // instead become: 'u > v', where 'u' and 'v' are pieces of uniform data for
39 // which it is known that 'u < v' holds.
40 bool ForceRenderRed(
41     const spv_target_env& target_env, spv_validator_options validator_options,
42     const std::vector<uint32_t>& binary_in,
43     const spvtools::fuzz::protobufs::FactSequence& initial_facts,
44     const MessageConsumer& message_consumer, std::vector<uint32_t>* binary_out);
45 
46 }  // namespace fuzz
47 }  // namespace spvtools
48 
49 #endif  // SOURCE_FORCE_RENDER_RED_H_
50