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// Copyright 2018 The SwiftShader Authors. All Rights Reserved.
//
// 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.
#include "VkShaderModule.hpp"
#include "spirv-tools/libspirv.hpp"
#include <cstring>
namespace vk {
std::atomic<uint32_t> ShaderModule::serialCounter(1); // Start at 1, 0 is invalid shader.
ShaderModule::ShaderModule(const VkShaderModuleCreateInfo *pCreateInfo, void *mem)
: serialID(nextSerialID())
, code(reinterpret_cast<uint32_t *>(mem))
{
memcpy(code, pCreateInfo->pCode, pCreateInfo->codeSize);
wordCount = static_cast<uint32_t>(pCreateInfo->codeSize / sizeof(uint32_t));
#if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)
spvtools::SpirvTools spirvTools(SPIRV_VERSION);
spvtools::ValidatorOptions validatorOptions = {};
validatorOptions.SetScalarBlockLayout(true); // VK_EXT_scalar_block_layout
validatorOptions.SetUniformBufferStandardLayout(true); // VK_KHR_uniform_buffer_standard_layout
ASSERT(spirvTools.Validate(code, wordCount, validatorOptions)); // The SPIR-V code passed to vkCreateShaderModule must be valid (b/158228522)
#endif
}
void ShaderModule::destroy(const VkAllocationCallbacks *pAllocator)
{
vk::deallocate(code, pAllocator);
}
size_t ShaderModule::ComputeRequiredAllocationSize(const VkShaderModuleCreateInfo *pCreateInfo)
{
return pCreateInfo->codeSize;
}
} // namespace vk