84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
#include<hgl/graph/vulkan/VKShaderModule.h>
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#include<hgl/graph/vulkan/VKVertexAttributeBinding.h>
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VK_NAMESPACE_BEGIN
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ShaderModule::ShaderModule(VkDevice dev,int id,VkPipelineShaderStageCreateInfo *sci,ShaderResource *sr)
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{
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device=dev;
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shader_id=id;
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ref_count=0;
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stage_create_info=sci;
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shader_resource=sr;
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}
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ShaderModule::~ShaderModule()
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{
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vkDestroyShaderModule(device,stage_create_info->module,nullptr);
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delete stage_create_info;
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}
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VertexShaderModule::VertexShaderModule(VkDevice dev,int id,VkPipelineShaderStageCreateInfo *pssci,ShaderResource *sr):ShaderModule(dev,id,pssci,sr)
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{
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const ShaderStageList &stage_inputs=sr->GetStageInputs();
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attr_count=stage_inputs.GetCount();
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binding_list=new VkVertexInputBindingDescription[attr_count];
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attribute_list=new VkVertexInputAttributeDescription[attr_count];
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VkVertexInputBindingDescription *bind=binding_list;
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VkVertexInputAttributeDescription *attr=attribute_list;
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ShaderStage **si=stage_inputs.GetData();
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for(uint i=0;i<attr_count;i++)
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{
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bind->binding =i; //binding对应在vkCmdBindVertexBuffer中设置的缓冲区的序列号，所以这个数字必须从0开始，而且紧密排列。
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//在VertexInput类中，buf_list需要严格按照本此binding为序列号排列
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bind->stride =GetStrideByFormat((*si)->format);
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bind->inputRate =VK_VERTEX_INPUT_RATE_VERTEX;
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//binding对应的是第几个数据输入流
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//实际使用一个binding可以绑定多个attrib
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//比如在一个流中传递{pos,color}这样两个数据，就需要两个attrib
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//但在我们的设计中，仅支持一个流传递一个attrib
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attr->binding =i;
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attr->location =(*si)->location; //此值对应shader中的layout(location=
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attr->format =(*si)->format;
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attr->offset =0;
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++attr;
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++bind;
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++si;
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}
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}
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VertexShaderModule::~VertexShaderModule()
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{
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if(vab_sets.GetCount()>0)
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{
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//还有在用的，这是个错误
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}
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SAFE_CLEAR_ARRAY(binding_list);
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SAFE_CLEAR_ARRAY(attribute_list);
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}
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VertexAttributeBinding *VertexShaderModule::CreateVertexAttributeBinding()
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{
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VertexAttributeBinding *vab=new VertexAttributeBinding(this);
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vab_sets.Add(vab);
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return(vab);
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}
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bool VertexShaderModule::Release(VertexAttributeBinding *vab)
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{
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return vab_sets.Delete(vab);
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}
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VK_NAMESPACE_END
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