+init

1 files changed, 52 insertions, 0 deletions

diff --git a/Client/Source/Graphics/VertexBuffer.h b/Client/Source/Graphics/VertexBuffer.h
new file mode 100644
index 0000000..b907337
--- /dev/null
+++ b/Client/Source/Graphics/VertexBuffer.h
@@ -0,0 +1,52 @@
+#pragma once
+
+#include <vector>
+
+#include "../Utilities/UtilMacros.h"
+
+#include "OpenGL.h"
+#include "GPUDataBuffer.h"
+#include "DefaultVertexLayout.h"
+#include "CustomVertexLayout.h"
+#include "Primitive.h"
+
+// 实际使用过程中，通常是一个VBO和一个IBO一起，submesh对应的是IBO中的不同的段，而不是不同的IBO
+
+class VertexBuffer
+{
+public:
+	enum VertexBufferType
+	{
+		VertexBufferType_Static, // device
+		VertexBufferType_Stream, // pinned (best performance)
+		VertexBufferType_Dynamic,// device
+	};
+
+	VertexBuffer(int vbSize, int ibSize, VertexBufferType type);
+	~VertexBuffer();
+
+    // 填充数据
+    void GetChunk(uint sizePerVert, uint sizePerIndex, int maxVerts, int maxIndices, EPrimitive primitive, void **out_vb, void **out_ib);
+    // 提交数据
+    void FlushChunk(int actualVerts, int actualIndices);
+
+    GET(GPU::DataBuffer*, VB, m_VB);
+    GET(GPU::DataBuffer*, IB, m_IB);
+
+	void Draw(CustomVertexLayout& layout);
+
+private:
+    void FillCustomVertexLayout(CustomVertexLayout& dst);
+
+	VertexBufferType m_Type;
+
+	GPU::DataBuffer* m_VB;
+	GPU::DataBuffer* m_IB;
+
+    int m_SizePerVertex;
+
+    int m_CurIndexCount;
+
+    EPrimitive m_Primitive;
+
+};