source/fuzz/uniform_buffer_element_descriptor.h

   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_FUZZ_UNIFORM_BUFFER_ELEMENT_DESCRIPTOR_H_
  16 #define SOURCE_FUZZ_UNIFORM_BUFFER_ELEMENT_DESCRIPTOR_H_
  17
  18 #include <vector>
  19
  20 #include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
  21 #include "source/opt/instruction.h"
  22 #include "source/opt/ir_context.h"
  23
  24 namespace spvtools {
  25 namespace fuzz {
  26
  27 // Factory method to create a uniform buffer element descriptor message from
  28 // descriptor set and binding ids and a list of indices.
  29 protobufs::UniformBufferElementDescriptor MakeUniformBufferElementDescriptor(
  30     uint32_t descriptor_set, uint32_t binding, std::vector<uint32_t>&& indices);
  31
  32 // Equality function for uniform buffer element descriptors.
  33 struct UniformBufferElementDescriptorEquals {
  34   bool operator()(
  35       const protobufs::UniformBufferElementDescriptor* first,
  36       const protobufs::UniformBufferElementDescriptor* second) const;
  37 };
  38
  39 // Returns a pointer to an OpVariable in |context| that is decorated with the
  40 // descriptor set and binding associated with |uniform_buffer_element|.  Returns
  41 // nullptr if no such variable exists.  If multiple such variables exist, a
  42 // pointer to an arbitrary one of the associated instructions is returned if
  43 // |check_unique| is false, and nullptr is returned if |check_unique| is true.
  44 opt::Instruction* FindUniformVariable(
  45     const protobufs::UniformBufferElementDescriptor&
  46         uniform_buffer_element_descriptor,
  47     opt::IRContext* context, bool check_unique);
  48
  49 }  // namespace fuzz
  50 }  // namespace spvtools
  51
  52 #endif  // SOURCE_FUZZ_UNIFORM_BUFFER_ELEMENT_DESCRIPTOR_H_