時(shí)不時(shí)總是聽見有些"人"說,什么軟件不開源**(此處省略2個(gè)字)。
其實(shí)平心而論,從開發(fā)者角度講軟件開源與否并不重要,主要的是開源軟件的意義何在?
對于使用者而言,她只需要能夠熟練掌握軟件同時(shí)在一定程度上熟悉原理即可并不需要完全閱讀軟件源碼?
我們以后越來越多的軟件將會(huì)使用Qt開發(fā)但是我并不打算編譯QT和閱讀QT源碼。
同樣有些代碼即使給你也不一定看得懂。
再者有些軟件適合開源,有些軟件不適合開源
開源與否不是有些"人"罵幾句就可以改變的了。
我的博客動(dòng)不動(dòng)就跑進(jìn)來幾個(gè)"人"上門開罵(想想其他人也有類似情況吧)
而且我刪除了評論竟然還發(fā)帖繼續(xù)開罵(我似乎沒有影響到他人吧)(有的話把博客注銷還是為好吧.)
題外話:我感覺能上cppblog的基本上都是受過高等教育的人,可是印象中感覺其中帶引號(hào)的"人"還是不少啊。
-----------------------------------------------------------------------------------------------
以后不允許匿名發(fā)帖咯
首先上代碼吧
個(gè)人感覺寫的很清爽
/*!==========================================================================
*
* 蓋莫游戲引擎(GaiMo Game Engine)
*
* 版權(quán)所有 (C) 2009-2009 成都蓋莫軟件技術(shù)工作室 保留所有權(quán)利
* Copyright (C) 成都蓋莫軟件技術(shù)工作室. All Rights Reserved.
*
* 了解更多情況,請?jiān)L問 http://www.gaimo.net
****************************************************************************/
//! 本demo測試引擎渲染到紋理功能
#include <iostream>
#include <GEngine/Header_Config.hpp>
using namespace std;
using namespace core;
#define FRAME_NUMBER 12
//! 定義圖形紋理指針
RefPtr<core::Texture> texture_ptr[FRAME_NUMBER];
//! 渲染到紋理指針
RefPtr<Renderable> rendertotexture;
core::TextDesc* text = NULL;
Matrix4f mat;
float pos[] = {0,0,0};
float length[] = {16,16,16};
void CreateTexture();
void InitCamera();
void Render();
int main(int argc, char *argv[])
{
//! 窗體描述符
ScreenDesc desc;
desc.name_ = "RenderToTextureTest";
//! 生成窗體
RefPtr<Screen> screen = CreateScreen(desc);
//! 生成紋理
CreateTexture();
//! 初始化攝像機(jī)
InitCamera();
while(screen->IsOpen())
{
Render();
}
DestroyScreen();
return EXIT_SUCCESS;
}
//! 構(gòu)造紋理
void CreateTexture()
{
//! 載入資源包
GLOBAL_FILESYSTEM_PTR->RegisterPackage("..\\package\\logo.zip");
RefPtr<core::ReadFile> imagefile;
RefPtr<Image> image[FRAME_NUMBER];
for(int i = 0;i < FRAME_NUMBER ;i++)
{
std::string name = ToString<int>(i);
imagefile = GLOBAL_FILESYSTEM_PTR->GetRead("logo.jpg");
image[i] = GLOBAL_IMAGEMANAGER_PTR->CreateImage(name,imagefile);
}
//! 反色
image[0]->GetInvertImage();
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(0),image[0]);
//! 水平翻轉(zhuǎn)
image[1]->FlipImage(Image::IMAGE_FLIP_X);
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(1),image[1]);
//! 豎直翻轉(zhuǎn)
image[2]->FlipImage(Image::IMAGE_FLIP_Y);
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(2),image[2]);
//! Gamma調(diào)整
image[3]->AdjustGamma(0.4);
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(3),image[3]);
//! 亮度調(diào)整
image[4]->AdjustBrightness(0.4);
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(4),image[4]);
//! 對比度調(diào)整
image[5]->AdjustContrast(0.6);
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(5),image[5]);
//! 翻轉(zhuǎn)
image[6]->FlipImage(Image::IMAGE_FLIP_XY);
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(6),image[6]);
//! 旋轉(zhuǎn)
image[7]->RotatedImage(Image::IMAGE_ROTATE_90);
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(7),image[7]);
//! Gamma調(diào)整
image[8]->AdjustGamma(0.1);
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(8),image[8]);
//! 亮度調(diào)整
image[9]->AdjustBrightness(0.8);
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(9),image[9]);
//! 對比度調(diào)整
image[10]->AdjustContrast(0.3);
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(10),image[10]);
GLOBAL_TEXTUREMANAGER_PTR->CreateTexture2(ToString<int>(11),image[11]);
for(int i = 0; i < FRAME_NUMBER; i++)
{
//! 紋理構(gòu)建
GLOBAL_TEXTUREMANAGER_PTR->GetObject(ToString<int>(i))->Generate();
}
text = new core::TextDesc("..\\package\\accid.ttf",12,0,0,3,Color::Cyan);
text->SetText(engine_wstring(L"maker:gaimosoft,ccsdu2004@yahoo.com.cn"));
//! 獲取渲染到紋理指針
rendertotexture = GLOBAL_RENDERER_PTR->GetRenderToTexture(640,480,GL_RGBA,GL_FLOAT);
glEnable(GL_DEPTH_TEST);
}
void InitCamera()
{
RefPtr<Camera> orthocamera = GLOBAL_CAMERAMANAGER_PTR->CreateCamera("orthocamera");
orthocamera->SetOrtho(0,640,480,0,-1.2,0.8);
RefPtr<Camera> camera = GLOBAL_CAMERAMANAGER_PTR->GetActiveCamera();
camera->GetViewPort()->Render();
camera->SetPerspective(45.0f,640.0f/480.0f,1.0f,600.0f);
camera->SetPosition(Vector3f(20,20,20));
camera->SetView(Vector3f());
camera->ApplayProjectMatrix();
}
void RenderTexture()
{
std::string texturename;
for(int i = 0; i < FRAME_NUMBER; i++)
{
texturename = ToString<int>(i);
GLOBAL_TEXTUREMANAGER_PTR->GetObject(texturename)->AttachRenderTarget();
UI_Brush::RenderTexture((i%4)*160,(i/4)*160,160,160);
}
}
//! 處理鼠標(biāo)響應(yīng)
void MouseCheck()
{
if(GLOBAL_INPUT_PTR->IsPressedKey(KEY_F1))
{
mat*=mat.Rotate((rand()%200)/900.0f,1,0,0);
}
else if(GLOBAL_INPUT_PTR->IsPressedKey(KEY_F2))
{
mat*=mat.Rotate((rand()%200)/900.0f,0,1,0);
}
else if(GLOBAL_INPUT_PTR->IsPressedKey(KEY_F3))
{
mat*=mat.Rotate((rand()%200)/900.0f,0,0,1);
}
}
void RenderText()
{
UI_Brush::PreRender();
static int offset = 0;
text->Render(Rectf(offset,460,400,20));
offset ++;
if(offset >= 600)
offset = -500;
UI_Brush::PostRender();
}
void RenderToTexture()
{
rendertotexture->BeginRender();
GLOBAL_RENDERER_PTR->Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
GLOBAL_CAMERAMANAGER_PTR->GetObject("orthocamera")->ApplayProjectMatrix();
RenderTexture();
RenderText();
rendertotexture->AfterRender();
}
void RenderToScreen()
{
GLOBAL_RENDERER_PTR->Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
GLOBAL_CAMERAMANAGER_PTR->GetActiveCamera()->ApplayProjectMatrix();
GLOBAL_CAMERAMANAGER_PTR->GetActiveCamera()->ApplayViewMatrix();
GLOBAL_RENDERER_PTR->DrawCube(pos,mat.ptr(),length);
}
void Render()
{
MouseCheck();
RenderToTexture();
RenderToScreen();
}
基本步驟就是生成窗體
初始化攝像機(jī)
生成紋理
渲染到紋理
渲染到窗體
完了
圖圖如下:
似乎我比較喜歡貼立方體啊 呵呵
重新修改了引擎的視頻播放這塊
并把視頻等幾個(gè)模塊做成了插件的形式
具體代碼和截圖如下:
//! 本代碼測試引擎視頻播放,插件系統(tǒng),鍵盤測試和立方體繪制
#include <iostream>
#include <GEngine/Header_Config.hpp>
Matrix4f mat;
float pos[] = {0,0,0};
float length[] = {1,1,1};
float offset = -500;
using namespace core;
void MouseCheck();
VideoPlayer* video_player_instance = NULL;
int main(int argc,char *argv[])
{
ScreenDesc desc;
desc.name_ = "VideoPlayerTest";
RefPtr<Screen> screen = CreateScreen(desc);
GLOBAL_PLUGINMANAGER_PTR->SetPluginFolder("..\\plugin");
GLOBAL_PLUGINMANAGER_PTR->InstallPlugin();
VideoPlayerFactory factory;
GLOBAL_PLUGINMANAGER_PTR->RegisterPluginFactory(&factory);
factory.SetData(1,screen->GetHDC());
factory.SetData(2,screen->GetHGLRC());
video_player_instance = factory.Create();
core::TextDesc* text = new core::TextDesc("..\\package\\accid.ttf",12,0,0,3,Color::Cyan);
text->SetText(L"maker:gaimosoft,ccsdu2004@yahoo.com.cn");
video_player_instance->Play("..\\package\\video.mp4");
while(screen->IsOpen())
{
GLOBAL_RENDERER_PTR->Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
video_player_instance->Update();
GLOBAL_RENDERER_PTR->AttachThreadRender();
GLOBAL_RENDERER_PTR->Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
uint id = video_player_instance->GetFrame();
GLOBAL_TEXTUREMANAGER_PTR->BindTexture2(id);
GLOBAL_RENDERER_PTR->DrawCube(pos,mat.ptr(),length);
UI_Brush::PreRender();
text->Render(Rectf(offset,460,400,20));
offset ++;
if(offset >= 600)
offset = -500;
UI_Brush::PostRender();
GLOBAL_RENDERER_PTR->DetachThreadRender();
MouseCheck();
}
video_player_instance->Stop();
delete text;
DestroyScreen();
return EXIT_SUCCESS;
}
//! 處理鼠標(biāo)響應(yīng)
void MouseCheck()
{
if(GLOBAL_INPUT_PTR->IsPressedKey(KEY_F1))
{
mat*=mat.Rotate((rand()%200)/900.0f,1,0,0);
}
else if(GLOBAL_INPUT_PTR->IsPressedKey(KEY_F2))
{
mat*=mat.Rotate((rand()%200)/900.0f,0,1,0);
}
else if(GLOBAL_INPUT_PTR->IsPressedKey(KEY_F3))
{
mat*=mat.Rotate((rand()%200)/900.0f,0,0,1);
}
}
這次并沒有做成全窗體播放的樣子而是從播放器獲取紋理標(biāo)識(shí)
然后再渲染之 這樣可以作出滿意的樣子了
截圖為:
1.
opengl中
gluBuild2DMipmaps()與glTexImage2D()
是很常用的函數(shù)
他們的作用是綁定函數(shù)
但是有時(shí)候使用
glTexImage2D
并不能正確綁定紋理
其原因據(jù)我所知有2個(gè)
1個(gè)是圖形大小不是2的整數(shù)次冪
還有一個(gè)就是
如果使用glTexImage2D，則在紋理包裹模式中不適用MIPMAP系列
摘要: 文件系統(tǒng)的功能:1.資源包裹2.提供資源載入速度3.資源加密在蓋莫游戲引擎中文件系統(tǒng)由讀文件,寫文件,XML序列化對象,ConfigFile構(gòu)成文件系統(tǒng)的接口如下:1.讀文件
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閱讀全文
使用boost pool的簡單例子如下:
#include <cstdlib>
#include <iostream>
#include <boost/pool/pool.hpp>
#include <boost/pool/object_pool.hpp>
using namespace std;
using namespace boost;
class Object
{
public:
Object(){cout<<"new obj"<<endl;}
~Object(){cout<<"delete obj"<<endl;}
};
int main(int argc, char *argv[])
{
//!每次分配的塊的大小
const int blocksize = sizeof(int);
boost::pool<> alloc(blocksize);
for(int i = 0; i < 100; i++)
{
//! 分配
int* ptr = (int*)alloc.malloc();
cout<<*ptr<<endl;
//! 釋放
alloc.free(ptr);
}
//!object pool每次需要指定對象大小
boost::object_pool<Object> pool_alloc;
for(int i = 0;i < 100;i++)
{
//! 分配內(nèi)存
void* mem = pool_alloc.malloc();
//! 構(gòu)造
Object *obj = new(mem)Object();
//! 析構(gòu)
pool_alloc.destroy(obj);
}
system("PAUSE");
return EXIT_SUCCESS;
}
//! ccsdu2004
本篇主要說明boost function的使用例子
設(shè)計(jì)頭文件:
#include <boost/function.hpp>
基本的function對象例子
boost::function<int(const char*,&int)> f;
代碼該函子對應(yīng)的函數(shù)其返回值為int類型,她有個(gè)2個(gè)參數(shù)分別為const char*和&int類型
一個(gè)簡單的例子如下所示:
#include <iostream>
#include <boost/function.hpp>
inline int Sum(const int a,const int b)
{
return a + b;
}
int main()
{
boost::function<int(const int,const int)> sum_ptr;
sum_ptr = ∑
std::cout<<"1+2=:?"<<sum_ptr(1,2);
system("PAUSE");
return EXIT_SUCCESS;
}
如果對應(yīng)的函數(shù)為類的成員函數(shù)則其使用例子可參考下面的說明:
#include <iostream>
#include <boost/function.hpp>
#include <functional>
struct Adder
{
Adder(int val):value(val){}
int Add(int x){return x*value;}
int value;
};
int main()
{
//! 對應(yīng)函數(shù)返回值int參數(shù)為int
boost::function<int(int)>f;
Adder add(7);
//! 綁定成員函數(shù)到boost::function<
>
f = std::bind1st(std::mem_fun(&Adder::Add),&add);
std::cout<<f(5)<<std::endl;
system("PAUSE");
return EXIT_SUCCESS;
}
對于仿函子則可以這樣做:
#include <iostream>
#include <boost/function.hpp>
#include <functional>
struct Div
{
float operator()(int x, int y)const
{
return((float)x)/y;
}
};
int main()
{
//! 2
boost::function<float(int,int)> div;
div = Div();
std::cout<<div(1,2)<<std::endl;
system("PAUSE");
return EXIT_SUCCESS;
}
//! ccsdu2004
使用c++如何獲取cpu溫度
當(dāng)前在偵測cpu溫度方面做得最好的是core temp,
其他的相關(guān)軟件有cpu Informer,cpu-z,優(yōu)化大師,魯大師等等
可能獲取cpu溫度的途徑(win2下)
有winio,ring0,smbus,匯編,wmi,apic,bios等等
但是效果都很差
有人有什么好的辦法可以獲得
歡迎討論
這是使用Boost assigne小庫的例子
包括map,vector,array的賦值操作
#include <cstdlib>
#include <iostream>
#include <boost/assign.hpp>
#include <boost/array.hpp>
#include <algorithm>
#include <iterator>
using namespace std;
using namespace boost;
using namespace boost::assign;
int main(int argc, char *argv[])
{
//! vector賦值
vector<int> v;
v += 1,2,3,4,5,6,7,8,9;
copy(v.begin(),v.end(),ostream_iterator<int>(cout,"\n"));
//! map
map<string,int> m;
insert(m)("foo",1)("bar",2)("ss",3);
std::cout<<m.size()<<std::endl;
//! boost array.
typedef array<float,6> Array;
#if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, == 1) || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
Array a = list_of(1.1)(2.2)(3.3)(4.4)(5.5)(6.6).to_array(a);
#else
Array a = list_of(1.1)(2.2)(3.3)(4.4)(5.5)(6.6);
#endif
copy(a.begin(),a.end(),ostream_iterator<float>(cout,"\n"));
typedef boost::tuple<int,std::string,int> tuple;
std::vector<tuple> vt = tuple_list_of(1,"foo",2)(3,"bar",4);
std::map<std::string,int> mp = pair_list_of("foo",3)("bar",5);
system("PAUSE");
return EXIT_SUCCESS;
}
//! ccsdu2004
這是簡單的使用boost文件系統(tǒng)的例子
在devc++下編譯需要2個(gè)庫一個(gè)libboostsystem一個(gè)libboostfilesystem
基本的研發(fā)如下:
#include <cstdlib>
#include <iostream>
#include <boost/filesystem.hpp>
using namespace std;
namespace fs = boost::filesystem;
int main(int argc, char *argv[])
{
std::cout<<"sizeof(intmax_t)is:"<<sizeof(boost::intmax_t)<<'\n';
fs::path path("main.cpp",fs::native);
if(!fs::exists(path))
{
return -1;
}
if(!fs::is_regular(path))
return -1;
std::cout<<"size is:"<<fs::file_size(path)<<"字節(jié)"<<std::endl;
fs::path full_path(fs::initial_path<fs::path>());
full_path = fs::system_complete(fs::path("main.cpp"));
//! 獲取給定文件全路徑
cout<<"full path name is:"<<full_path.file_string()<<std::endl;
//! 檢測是不是路徑
cout<<"is path:"<<fs::is_directory(full_path)<<std::endl;
unsigned long file_count = 0;
unsigned long dir_count = 0;
unsigned long other_count = 0;
unsigned long err_count = 0;
full_path = fs::system_complete(fs::path("C:\\WINDOWS"));
//! 目錄迭代
fs::directory_iterator end_iter;
for(fs::directory_iterator dir_itr(full_path);dir_itr != end_iter;++dir_itr)
{
try
{
if(fs::is_directory(dir_itr->status()))
{
++dir_count;
std::cout<<dir_itr->path().filename()<<"[directory]\n";
}
else if(fs::is_regular_file(dir_itr->status()))
{
++file_count;
std::cout<<dir_itr->path().filename()<<"\n";
//! 全路徑名字
std::cout<<dir_itr->path().native_file_string()<<std::endl;
}
else
{
++other_count;
std::cout << dir_itr->path().filename() <<"[other]\n";
}
}
catch(const std::exception & ex)
{
++err_count;
std::cout<<dir_itr->path().filename()<<" "<<ex.what()<<std::endl;
}
}
std::cout<<"\n"<<file_count<<"files\n"<<dir_count<<" directories\n"<<other_count<<" others\n"<<err_count<<" errors\n";
//! 生成文件目錄
fs::create_directories(fs::path("filesystem"));
system("PAUSE");
return EXIT_SUCCESS;
}
//! ccsdu2004
boost文件系統(tǒng)還不錯(cuò)
要是再加入對壓縮包或者資源包的支持就更好了!