用cpp

3dMath.vcxproj

@@ -123,6 +123,8 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClInclude Include="CArrayBuffer.h" />
+    <ClInclude Include="CDataView.h" />
     <ClInclude Include="GMath.h" />
   </ItemGroup>
   <ItemGroup>

3dMath.vcxproj.filters

@@ -18,6 +18,12 @@
     <ClInclude Include="GMath.h">
       <Filter>头文件</Filter>
     </ClInclude>
+    <ClInclude Include="CArrayBuffer.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="CDataView.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="GMath.cpp">

CArrayBuffer.h

@@ -0,0 +1,23 @@
+#pragma once
+typedef unsigned char Byte;
+
+class CArrayBuffer {
+public:
+	CArrayBuffer(int byteLength = 8) {
+		this->_byteLenght = byteLength;
+		this->pData = new Byte[this->_byteLenght];
+	}
+	~CArrayBuffer() {
+		if (this->pData != nullptr) {
+			delete[] this->pData;
+			this->pData = nullptr;
+		}
+	}
+	int byteLength() {
+		return this->_byteLenght;
+	}
+public:
+	Byte *pData;
+private:
+	int _byteLenght;
+};

CDataView.h

@@ -0,0 +1,36 @@
+#pragma once
+#include <cstring>
+#include "CArrayBuffer.h"
+
+typedef unsigned short uint16;
+typedef float float32;
+
+class CDataView {
+public:
+	CArrayBuffer* buffer;
+
+	int byteOffset;
+	int byteLength;
+
+	CDataView(CArrayBuffer* pBuffer, int byteOffset, int byteLength) {
+		this->buffer = pBuffer;
+		this->byteOffset = byteOffset;
+		this->byteLength = byteLength;
+	}
+
+	void setFloat32(int offset, float32 value) {
+		memcpy(this->buffer->pData + (this->byteOffset + offset), &value, sizeof(float32));
+	}
+
+	float32 getFloat32(int offset) {
+		return *((float32*)(this->buffer->pData + (this->byteOffset + offset)));
+	}
+
+	void setUint16(int offset, uint16 value) {
+		memcpy(this->buffer->pData + (this->byteOffset + offset), &value, sizeof(uint16));
+	}
+
+	uint16 getUint16(int offset) {
+		return *((uint16*)(this->buffer->pData + (this->byteOffset + offset)));
+	}
+};

main.cpp

@@ -1,17 +1,40 @@
 #include "GMath.h"
+#include "CArrayBuffer.h"
+#include "CDataView.h"
 
 int main() {
+	CArrayBuffer buffer(16);
+	CDataView view0(&buffer, 0, buffer.byteLength());
 
-	float a[] = { 
-		0, 0, 0, 2,
-		0, 0, 2, 1,
-		0, 2, 1, 2,
-		2, 1, 2, 3
+	view0.setFloat32(8, 99.99);
+	view0.setUint16(8 + 4, 2048);
+
+	printf("%f\n", view0.getFloat32(8));
+	printf("%d\n", view0.getUint16(8+4));
+
+	CDataView view1(&buffer, 8, 18);
+
+	printf("%f\n", view1.getFloat32(0));
+	printf("%d\n", view1.getUint16(4));
+
+	/*float a[] = { 
+		2, 2, 2, 2,
+		3, 3, 3, 3,
+		4, 4, 4, 4,
+		5, 5, 5, 5
 	};
 	GMatrix A(4, 4, a);
 
-	//cout << B*A << endl;
-	cout << Det(A) << endl;
+	float b[] = {
+		2,
+		2,
+		2,
+		2
+	};
+	GMatrix B(4, 1, b);
+
+
+	cout << A*B << endl;*/
 
 	/*float a[] = {
 		1,0,