增加新的VertexInput类，用于存储vbo输入数据布局

example/Vulkan/CMakeLists.txt

@@ -18,11 +18,13 @@ SET(VULKAN_TEST_SOURCE_FILES	main.cpp
 #							 VKDescriptorSet.cpp
 								VKRenderPass.cpp
 								VKShader.cpp
+								VKVertexInput.cpp
 							 )
 
 SET(VULKAN_TEST_HEADER_FILES	VK.h
 								VKInstance.h
 								VKPhysicalDevice.h
+								VKCommandBuffer.h
 								VKSurfaceExtensionName.h
 								RenderSurfaceAttribute.h
 								RenderSurface.h
@@ -31,6 +33,7 @@ SET(VULKAN_TEST_HEADER_FILES	VK.h
 #								VKDescriptorSet.h
 								VKRenderPass.h
 								VKShader.h
+								VKVertexInput.h
 								Window.h)
 
 SET(SHADER_FILES	shader_compile.bat

example/Vulkan/RenderSurfaceAttribute.h

@@ -52,7 +52,7 @@ public:
     RenderSurfaceAttribute(VkInstance inst,const PhysicalDevice *pd,VkSurfaceKHR s);
     ~RenderSurfaceAttribute();
 
-    bool CheckMemoryType(uint32_t typeBits,VkFlags requirements_mask,uint32_t *typeIndex)
+    bool CheckMemoryType(uint32_t typeBits,VkFlags requirements_mask,uint32_t *typeIndex) const
     {
         return physical_device->CheckMemoryType(typeBits,requirements_mask,typeIndex);
     }

example/Vulkan/VKCommandBuffer.h

@@ -2,6 +2,7 @@
 #define HGL_GRAPH_VULKAN_COMMAND_BUFFER_INCLUDE
 
 #include"VK.h"
+#include"VKVertexInput.h"
 
 VK_NAMESPACE_BEGIN
     class CommandBuffer
@@ -14,6 +15,15 @@ VK_NAMESPACE_BEGIN
 
         CommandBuffer(VkDevice dev,VkCommandPool cp,VkCommandBuffer cb){device=dev;pool=cp;buf=cb;}
         ~CommandBuffer();
+
+        void Bind(VertexInput *vi)
+        {
+            auto &buf_list=vi->GetBufferList();
+
+            constexpr VkDeviceSize offsets[1]={0};
+
+            vkCmdBindVertexBuffers(buf,0,buf_list.GetCount(),buf_list.GetData(),offsets);
+        }
     };//class CommandBuffer
 VK_NAMESPACE_END
 #endif//HGL_GRAPH_VULKAN_COMMAND_BUFFER_INCLUDE

example/Vulkan/VKVertexInput.cpp

@@ -0,0 +1,38 @@
+#include"VKVertexInput.h"
+
+VK_NAMESPACE_BEGIN
+
+//struct VertexInputBuffer
+//{
+//    //按API，可以一个binding绑多个attrib，但我们仅支持1v1
+//
+//    VkVertexInputBindingDescription binding;
+//    VkVertexInputAttributeDescription attrib;
+//    Buffer *buf;
+//};
+
+bool VertexInput::Add(VertexBuffer *buf)
+{
+    if(!buf)
+        return(false);
+
+    const int binding_index=vib_list.GetCount();      //参考opengl vab,binding_index必须从0开始，紧密排列，但是否必须这样，待以后测试
+
+    VkVertexInputBindingDescription binding;
+    VkVertexInputAttributeDescription attrib;
+
+    binding.binding=binding_index;
+    binding.stride=buf->GetStride();
+    binding.inputRate=VK_VERTEX_INPUT_RATE_VERTEX;      //还有一种是INSTANCE，暂时未知
+
+    attrib.binding=binding_index;
+    attrib.location=0;
+    attrib.format=buf->GetFormat();
+    attrib.offset=0;
+
+    vib_list.Add(new VertexInputBuffer(binding,attrib,buf));
+    buf_list.Add(buf->GetBuffer());
+
+    return(true);
+}
+VK_NAMESPACE_END

example/Vulkan/VKVertexInput.h

@@ -0,0 +1,43 @@
+#ifndef HGL_GRAPH_VULKAN_VERTEX_INPUT_INCLUDE
+#define HGL_GRAPH_VULKAN_VERTEX_INPUT_INCLUDE
+
+#include"VK.h"
+#include"VKBuffer.h"
+VK_NAMESPACE_BEGIN
+/**
+ * 顶点输入配置，类似于OpenGL的VAB<br>
+ * 注：本引擎不支持一个BUFFER中包括多种数据
+ */
+class VertexInput
+{
+    struct VertexInputBuffer
+    {
+        //按API，可以一个binding绑多个attrib，但我们仅支持1v1
+
+        VkVertexInputBindingDescription binding;
+        VkVertexInputAttributeDescription attrib;
+        VertexBuffer *buffer;
+
+    public:
+
+        VertexInputBuffer(VkVertexInputBindingDescription bind,VkVertexInputAttributeDescription attr,VertexBuffer *buf)
+        {
+            binding=bind;
+            attrib=attr;
+            buffer=buf;
+        }
+    };
+
+    ObjectList<VertexInputBuffer> vib_list;
+    List<VkBuffer> buf_list;
+
+public:
+
+    bool Add(VertexBuffer *);
+
+public:
+
+    List<VkBuffer> &GetBufferList(){return buf_list;}
+};//class VertexInput
+VK_NAMESPACE_END
+#endif//HGL_GRAPH_VULKAN_VERTEX_INPUT_INCLUDE