📄 demo.cpp
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//----------------------------------------------------------------------------//// demo.cpp //// Copyright (C) 2001 Bruno 'Beosil' Heidelberger ////----------------------------------------------------------------------------//// This program is free software; you can redistribute it and/or modify it //// under the terms of the GNU General Public License as published by the Free //// Software Foundation; either version 2 of the License, or (at your option) //// any later version. ////----------------------------------------------------------------------------//#if defined(_MSC_VER) && _MSC_VER <= 0x0600#pragma warning(disable : 4786)#endif//----------------------------------------------------------------------------//// Includes ////----------------------------------------------------------------------------//#if defined(_MSC_VER) && _MSC_VER <= 0x0600#pragma warning(disable : 4786)#endif#include "demo.h"#include "tick.h"#include "tga.h"#include "coremodel.h"
///////////////////////////////////////////////////////////////////////////////
////////////////////////////////控制摄像机/////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
#include <dinput.h>
int CtlDevice=0;//0：操纵杆，1：键盘
float camera_x=0,camera_y=10,camera_z=1,camera_theta=0,camera_psi=0,camera_gama=0,camera_hfov=45,camera_speed=0.5;
float XX=0,YY=0,ZZ=0,LL=0,RR=0;
LPDIRECTINPUT8 g_pDI;
LPDIRECTINPUTDEVICE8 g_pJoystick;
void InitDirectInput()//操纵杆初始化
{
DirectInput8Create( GetModuleHandle(NULL), DIRECTINPUT_VERSION,IID_IDirectInput8, (VOID**)&g_pDI, NULL );
if(g_pDI->CreateDevice( GUID_Joystick, &g_pJoystick, NULL )!=DI_OK)
{
CtlDevice=1;
return;
}
g_pJoystick->SetDataFormat( &c_dfDIJoystick2 );
DIPROPRANGE diprg;
diprg.diph.dwSize = sizeof(DIPROPRANGE);
diprg.diph.dwHeaderSize = sizeof(DIPROPHEADER);
diprg.diph.dwHow = DIPH_BYOFFSET;
diprg.diph.dwObj = DIJOFS_X;
diprg.lMin = -1000;
diprg.lMax = +1000;
g_pJoystick->SetProperty( DIPROP_RANGE, &diprg.diph );
diprg.diph.dwSize = sizeof(DIPROPRANGE);
diprg.diph.dwHeaderSize = sizeof(DIPROPHEADER);
diprg.diph.dwHow = DIPH_BYOFFSET;
diprg.diph.dwObj = DIJOFS_Y;
diprg.lMin = -1000;
diprg.lMax = +1000;
g_pJoystick->SetProperty( DIPROP_RANGE, &diprg.diph );
//增加（为适应saitek操纵杆）
diprg.diph.dwSize = sizeof(DIPROPRANGE);
diprg.diph.dwHeaderSize = sizeof(DIPROPHEADER);
diprg.diph.dwHow = DIPH_BYOFFSET;
diprg.diph.dwObj = DIJOFS_Z;
diprg.lMin = -1000;
diprg.lMax = 0;
g_pJoystick->SetProperty( DIPROP_RANGE, &diprg.diph );
diprg.diph.dwSize = sizeof(DIPROPRANGE);
diprg.diph.dwHeaderSize = sizeof(DIPROPHEADER);
diprg.diph.dwHow = DIPH_BYOFFSET;
diprg.diph.dwObj = DIJOFS_RZ;
diprg.lMin = -1000;
diprg.lMax = +1000;
g_pJoystick->SetProperty( DIPROP_RANGE, &diprg.diph );
diprg.diph.dwSize = sizeof(DIPROPRANGE);
diprg.diph.dwHeaderSize = sizeof(DIPROPHEADER);
diprg.diph.dwHow = DIPH_BYOFFSET;
diprg.diph.dwObj = DIJOFS_SLIDER(0);
diprg.lMin = -1000;
diprg.lMax = 0;
g_pJoystick->SetProperty( DIPROP_RANGE, &diprg.diph );
g_pJoystick->Acquire();
}
//操纵杆退出
void FreeDirectInput()
{
if(g_pJoystick)g_pJoystick->Unacquire();
g_pJoystick=NULL;
g_pDI=NULL;
}
//实现操纵杆控制
void UpdateInputState()
{
if(CtlDevice==0)
{
//获得操纵杆数据
DIJOYSTATE2 js;
g_pJoystick->Poll();
g_pJoystick->GetDeviceState( sizeof(DIJOYSTATE2), &js);
//设置死区防去抖动
if((js.lX>=-20)&&(js.lX<=20))js.lX=0;
if((js.lY>=-20)&&(js.lY<=20))js.lY=0;
if((js.lRz>=-20)&&(js.lRz<=20))js.lRz=0;
//速度系数（修改：根据不同操纵杆不同）
if(js.lZ==0)
camera_speed=-js.rglSlider[0]/1000.0;
else
camera_speed=-js.lZ/1000.0;
//前后运动(axis_y)
camera_x=camera_x+(js.lY*camera_speed/1000.0)*sin(camera_psi/57.3);
camera_y=camera_y+(-js.lY*camera_speed/1000.0)*cos(camera_psi/57.3);
//转向运动(axis_x)
camera_psi=camera_psi-js.lX/1000.0;
//上下运动(button5,button3)
if(js.rgbButtons[4]&0x80)camera_z=camera_z+0.1;
if(js.rgbButtons[2]&0x80)camera_z=camera_z-0.1;
//限制摄像机高度
if(camera_z<=0)camera_z=1;
//俯仰运动(button6,button4)
if(js.rgbButtons[5]&0x80)camera_theta=camera_theta+0.5;
if(js.rgbButtons[3]&0x80)camera_theta=camera_theta-0.5;
//相机倾斜(axis_rz)
//camera_gama=js.lRz/20.0;
//调焦运动(button1,button2)
if(js.rgbButtons[0]&0x80)camera_hfov=camera_hfov-0.5;
if(js.rgbButtons[1]&0x80)camera_hfov=camera_hfov+0.5;
}
}
//----------------------------------------------------------------------------//// The one and only Demo instance ////----------------------------------------------------------------------------//Demo theDemo;//----------------------------------------------------------------------------//// Constructors ////----------------------------------------------------------------------------//
Demo::Demo() : m_strDatapath("data/"), m_strCal3D_Datapath(""){
m_width = 640; m_height = 480; m_bFullscreen = true; m_fpsDuration = 0.0f; m_fpsFrames = 0; m_fps = 0; m_mouseX = 0; m_mouseY = 0; m_bLeftMouseButtonDown = false; m_bRightMouseButtonDown = false; m_lastTick = Tick::getTick(); m_bPaused = false; m_bOutputAverageCPUTimeAtExit = false;}//----------------------------------------------------------------------------//// Destructor ////----------------------------------------------------------------------------//Demo::~Demo(){}//----------------------------------------------------------------------------//// Get the demo caption ////----------------------------------------------------------------------------//std::string Demo::getCaption(){ return "MyCal3D";}//----------------------------------------------------------------------------//// Get the filepath to the data files ////----------------------------------------------------------------------------//std::string Demo::getDatapath(){ return m_strDatapath;}//----------------------------------------------------------------------------//// Get the fullscreen flag ////----------------------------------------------------------------------------//bool Demo::getFullscreen(){ return m_bFullscreen;}//----------------------------------------------------------------------------//// Get the window height ////----------------------------------------------------------------------------//int Demo::getHeight(){ return m_height;}//----------------------------------------------------------------------------//// Get the window width ////----------------------------------------------------------------------------//int Demo::getWidth(){ return m_width;}//----------------------------------------------------------------------------//// Load a texture from a given file ////----------------------------------------------------------------------------//bool Demo::loadTexture(const std::string& strFilename, GLuint& pId){ // initialize the id pId = 0; if (stricmp(strrchr(strFilename.c_str(),'.'),".raw")==0) { // open the texture file std::ifstream file; file.open(strFilename.c_str(), std::ios::in | std::ios::binary); if(!file) { std::cerr << "Texture file '" << strFilename << "' not found." << std::endl; return false; } // read the width, height and depth of the texture int width; file.read((char *)&width, 4); int height; file.read((char *)&height, 4); int depth; file.read((char *)&depth, 4); // check if an error has happend if(!file) { std::cerr << "Error while readinf from texture file '" << strFilename << "'." << std::endl; return false; } // allocate a temporary buffer to hold the texture data unsigned char *pBuffer; pBuffer = new unsigned char[width * height * depth]; if(pBuffer == 0) { std::cerr << "Memory allocation for texture file '" << strFilename << "' failed." << std::endl; return false; } // load the texture file.read((char *)pBuffer, width * height * depth); file.close(); // generate the texture glPixelStorei(GL_UNPACK_ALIGNMENT, 1); glGenTextures(1, &pId); glBindTexture(GL_TEXTURE_2D, pId); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexImage2D(GL_TEXTURE_2D, 0, (depth == 3) ? GL_RGB : GL_RGBA, width, height, 0, (depth == 3) ? GL_RGB : GL_RGBA, GL_UNSIGNED_BYTE, pBuffer); } else if (stricmp(strrchr(strFilename.c_str(),'.'),".tga")==0) { CTga *Tga; Tga = new CTga(); if(Tga->ReadFile(strFilename.c_str())==0) { Tga->Release(); return false; } if(Tga->Bpp()!=32) { Tga->Release(); return false; } glPixelStorei(GL_UNPACK_ALIGNMENT, 1); glGenTextures(1, &pId); glBindTexture(GL_TEXTURE_2D, pId); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, Tga->GetSizeX(), Tga->GetSizeY(), 0, GL_RGBA, GL_UNSIGNED_BYTE, Tga->GetPointer() ); Tga->Release(); } return true;}//----------------------------------------------------------------------------//// Create the demo ////----------------------------------------------------------------------------//bool Demo::onCreate(int argc, char *argv[]){
//初始化操纵杆
InitDirectInput();
// show some information std::cout << "o----------------------------------------------------------------o" << std::endl; std::cout << "| The Cally Demo 2.10.0 |" << std::endl; std::cout << "| (C) 2001, 2002, 2003 Bruno 'Beosil' Heidelberger |" << std::endl; std::cout << "o----------------------------------------------------------------o" << std::endl; std::cout << "| This program is free software; you can redistribute it and/or |" << std::endl; std::cout << "| modify it under the terms of the GNU General Public License as |" << std::endl; std::cout << "| published by the Free Software Foundation; either version 2 of |" << std::endl; std::cout << "| the License, or (at your option) any later version. |" << std::endl; std::cout << "o----------------------------------------------------------------o" << std::endl; std::cout << std::endl; // parse the command line arguments int arg; for(arg = 1; arg < argc; arg++) { // check for fullscreen flag if(strcmp(argv[arg], "--fullscreen") == 0) m_bFullscreen = true; // check for window flag else if(strcmp(argv[arg], "--window") == 0) m_bFullscreen = false; // check for dimension flag else if((strcmp(argv[arg], "--dimension") == 0) && (argc - arg > 2)) { m_width = atoi(argv[++arg]); m_height = atoi(argv[++arg]); if((m_width <= 0) || (m_height <= 0)) { std::cerr << "Invalid dimension!" << std::endl; return false; } } else if((strcmp(argv[arg], "--data") == 0) && (argc - arg > 1)) { m_strCal3D_Datapath = argv[++arg]; } else if((strcmp(argv[arg], "--bench") == 0)) { m_bOutputAverageCPUTimeAtExit = true; } else { std::cerr << "Usage: " << argv[0] << " [--fullscreen] [--window] [--dimension width height] [--data path_to_cal3d_data]" << std::endl; return false; } } return true;}//----------------------------------------------------------------------------//// Handle an idle event ////----------------------------------------------------------------------------//void Demo::onIdle(){ // get the current tick value unsigned int tick; tick = Tick::getTick(); // calculate the amount of elapsed seconds float elapsedSeconds; elapsedSeconds = (float)(tick - m_lastTick) / 1000.0f; // adjust fps counter m_fpsDuration += elapsedSeconds; if(m_fpsDuration >= 1.0f) { m_fps = (int)((float)m_fpsFrames / m_fpsDuration); m_fpsDuration = 0.0f; m_fpsFrames = 0; } static double start; static double firstTime, lastTime; start = Tick::getTime(); static bool bFirst = true; if (bFirst) { firstTime = start; } else { lastTime = start; }⌨️ 快捷键说明
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