39 lines
1.0 KiB
C++
39 lines
1.0 KiB
C++
#include"VKVertexInput.h"
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VK_NAMESPACE_BEGIN
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//struct VertexInputBuffer
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//{
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// //按API，可以一个binding绑多个attrib，但我们仅支持1v1
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//
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// VkVertexInputBindingDescription binding;
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// VkVertexInputAttributeDescription attrib;
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// Buffer *buf;
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//};
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bool VertexInput::Add(VertexBuffer *buf,bool instance)
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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=0;
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attrib.format=buf->GetFormat();
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attrib.offset=0;
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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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return(true);
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}
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VK_NAMESPACE_END
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