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/* Copyright (c) 2024-2025 LunarG, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <stdint.h>
#include "pass.h"
namespace gpuav {
namespace spirv {
// Will make sure Buffers (Storage and Uniform Buffers) that are non bindless are not OOB Uses robustBufferAccess to ensure if we
// are OOB that it won't crash and we will return the error safely
class DescriptorClassGeneralBufferPass : public Pass {
public:
DescriptorClassGeneralBufferPass(Module& module);
const char* Name() const final { return "DescriptorClassGeneralBufferPass"; }
bool Instrument() final;
void PrintDebugInfo() const final;
private:
// This is metadata tied to a single instruction gathered during RequiresInstrumentation() to be used later
struct InstructionMeta {
const Instruction* target_instruction = nullptr;
uint32_t descriptor_set = 0;
uint32_t descriptor_binding = 0;
uint32_t descriptor_index_id = 0; // index input the descriptor array
// The Type of the OpVariable that is being accessed
const Type* descriptor_type = nullptr;
// Id to the descriptor, will have array stripped if descriptor indexing
uint32_t descriptor_id = 0;
// List of OpAccessChains fom the Store/Load down to the OpVariable
// The front() will be closet to the exact spot accesssed
// The back() will be closest to the OpVariable
// (note GLSL will try to always create a single large OpAccessChain)
std::vector<const Instruction*> access_chain_insts;
// Capture the upper bound offset into the struct the instruction accesses
// Will be zero if we can't determine it (or in Safe Mode)
uint32_t access_offset = 0;
};
bool RequiresInstrumentation(const Function& function, const Instruction& inst, InstructionMeta& meta);
void CreateFunctionCall(BasicBlock& block, InstructionIt* inst_it, const InstructionMeta& meta);
uint32_t GetLinkFunctionId();
// Function IDs to link in
uint32_t link_function_id_ = 0;
};
} // namespace spirv
} // namespace gpuav
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