48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
#include"VKVertexInput.h"
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#include"VKBuffer.h"
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VK_NAMESPACE_BEGIN
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bool VertexInput::Add(uint32_t location,VertexBuffer *buf,bool instance,VkDeviceSize offset)
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{
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if(!buf)
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return(false);
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const int binding_index=vib_list.GetCount(); //参考opengl vab,binding_index必须从0开始，紧密排列。对应在vkCmdBindVertexBuffer中的缓冲区索引
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VkVertexInputBindingDescription binding;
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VkVertexInputAttributeDescription attrib;
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binding.binding=binding_index;
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binding.stride=buf->GetStride();
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binding.inputRate=instance?VK_VERTEX_INPUT_RATE_INSTANCE:VK_VERTEX_INPUT_RATE_VERTEX;
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attrib.binding=binding_index;
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attrib.location=location;
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attrib.format=buf->GetFormat();
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attrib.offset=offset;
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vib_list.Add(new VertexInputBuffer(binding,attrib,buf));
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buf_list.Add(buf->GetBuffer());
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buf_offset.Add(offset);
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binding_list.Add(binding);
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attribute_list.Add(attrib);
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return(true);
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}
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const VkPipelineVertexInputStateCreateInfo VertexInput::GetPipelineVertexInputStateCreateInfo()const
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{
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VkPipelineVertexInputStateCreateInfo vertexInputInfo = {};
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vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
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vertexInputInfo.vertexBindingDescriptionCount = binding_list.GetCount();
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vertexInputInfo.pVertexBindingDescriptions = binding_list.GetData();
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vertexInputInfo.vertexAttributeDescriptionCount = attribute_list.GetCount();
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vertexInputInfo.pVertexAttributeDescriptions = attribute_list.GetData();
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return vertexInputInfo;
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}
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VK_NAMESPACE_END
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