From 4b68848f126c78495c21947a609a9f0948a7591a Mon Sep 17 00:00:00 2001
From: blobt <klm777x7@gmai.com>
Date: Sat, 13 Mar 2021 08:53:55 +0800
Subject: [PATCH] =?UTF-8?q?=E7=94=A8cpp?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .vs/3dMath/v15/.suo             | Bin 36352 -> 39936 bytes
 .vs/3dMath/v15/Browse.VC.opendb | Bin 0 -> 42 bytes
 3dMath.vcxproj                  |   2 ++
 3dMath.vcxproj.filters          |   6 ++++++
 CArrayBuffer.h                  |  23 ++++++++++++++++++++
 CDataView.h                     |  36 +++++++++++++++++++++++++++++++
 main.cpp                        |  37 ++++++++++++++++++++++++++------
 7 files changed, 97 insertions(+), 7 deletions(-)
 create mode 100644 .vs/3dMath/v15/Browse.VC.opendb
 create mode 100644 CArrayBuffer.h
 create mode 100644 CDataView.h

diff --git a/.vs/3dMath/v15/.suo b/.vs/3dMath/v15/.suo
index 769db18b03584406dbe477621e704b643a32db37..4c2d4636dbd6fb59bba7a141b743462985c5dd3b 100644
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diff --git a/.vs/3dMath/v15/Browse.VC.opendb b/.vs/3dMath/v15/Browse.VC.opendb
new file mode 100644
index 0000000000000000000000000000000000000000..f2a154f09f01beee5553de0f55d9b6408f32ec6a
GIT binary patch
literal 42
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literal 0
HcmV?d00001

diff --git a/3dMath.vcxproj b/3dMath.vcxproj
index b805f1c..49eedf2 100644
--- a/3dMath.vcxproj
+++ b/3dMath.vcxproj
@@ -123,6 +123,8 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClInclude Include="CArrayBuffer.h" />
+    <ClInclude Include="CDataView.h" />
     <ClInclude Include="GMath.h" />
   </ItemGroup>
   <ItemGroup>
diff --git a/3dMath.vcxproj.filters b/3dMath.vcxproj.filters
index 7ed2a6c..d3aa178 100644
--- a/3dMath.vcxproj.filters
+++ b/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">
diff --git a/CArrayBuffer.h b/CArrayBuffer.h
new file mode 100644
index 0000000..15a3e32
--- /dev/null
+++ b/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;
+};
\ No newline at end of file
diff --git a/CDataView.h b/CDataView.h
new file mode 100644
index 0000000..31c34f8
--- /dev/null
+++ b/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)));
+	}
+};
\ No newline at end of file
diff --git a/main.cpp b/main.cpp
index c638222..0feef0e 100644
--- a/main.cpp
+++ b/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,