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1 // Copyright 2018 The SwiftShader Authors. All Rights Reserved.
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 #include "VkShaderModule.hpp"
16 
17 #include <cstring>
18 
19 namespace vk {
20 
21 std::atomic<uint32_t> ShaderModule::serialCounter(1);  // Start at 1, 0 is invalid shader.
22 
ShaderModule(const VkShaderModuleCreateInfo * pCreateInfo,void * mem)23 ShaderModule::ShaderModule(const VkShaderModuleCreateInfo *pCreateInfo, void *mem)
24     : serialID(nextSerialID())
25     , code(reinterpret_cast<uint32_t *>(mem))
26 {
27 	memcpy(code, pCreateInfo->pCode, pCreateInfo->codeSize);
28 	wordCount = static_cast<uint32_t>(pCreateInfo->codeSize / sizeof(uint32_t));
29 }
30 
destroy(const VkAllocationCallbacks * pAllocator)31 void ShaderModule::destroy(const VkAllocationCallbacks *pAllocator)
32 {
33 	vk::deallocate(code, pAllocator);
34 }
35 
ComputeRequiredAllocationSize(const VkShaderModuleCreateInfo * pCreateInfo)36 size_t ShaderModule::ComputeRequiredAllocationSize(const VkShaderModuleCreateInfo *pCreateInfo)
37 {
38 	return pCreateInfo->codeSize;
39 }
40 
41 }  // namespace vk
42