root / rgbdslam / external / siftgpu / src / TestWin / GLTestWnd.cpp @ 9240aaa3
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1 | 9240aaa3 | Alex | ////////////////////////////////////////////////////////////////////////////
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2 | // File: GLTestWnd.cpp
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3 | // Author: Changchang Wu
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4 | // Description : implementation of the GLTestWnd class.
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5 | //
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6 | //
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7 | //
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8 | // Copyright (c) 2007 University of North Carolina at Chapel Hill
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9 | // All Rights Reserved
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10 | //
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11 | // Permission to use, copy, modify and distribute this software and its
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12 | // documentation for educational, research and non-profit purposes, without
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13 | // fee, and without a written agreement is hereby granted, provided that the
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14 | // above copyright notice and the following paragraph appear in all copies.
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15 | //
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16 | // The University of North Carolina at Chapel Hill make no representations
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17 | // about the suitability of this software for any purpose. It is provided
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18 | // 'as is' without express or implied warranty.
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19 | //
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20 | // Please send BUG REPORTS to ccwu@cs.unc.edu
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21 | //
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22 | ////////////////////////////////////////////////////////////////////////////
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23 | |||
24 | |||
25 | #define WIN32_LEAN_AND_MEAN
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26 | |||
27 | #include <windows.h> |
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28 | #include <windowsx.h> |
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29 | #include "GL/gl.h" |
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30 | #include <stdlib.h> |
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31 | |||
32 | /////////////////////////
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33 | #include "BasicTestWin.h" |
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34 | #include "GLTestWnd.h" |
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35 | |||
36 | #ifdef _WINDOWS
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37 | int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
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38 | LPSTR lpCmdLine, int nCmdShow)
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39 | { |
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40 | //////////////////////////////////////////
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41 | //create a window
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42 | GLTestWnd win(lpCmdLine); |
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43 | #else
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44 | int main(int argc, char** argv) |
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45 | { |
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46 | GLTestWnd win(argc, argv); |
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47 | #endif
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48 | |||
49 | ///////////////////////////////////////
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50 | MSG msg; //
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51 | while (GetMessage(&msg, NULL, 0, 0)) |
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52 | { |
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53 | TranslateMessage(&msg); |
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54 | DispatchMessage(&msg); |
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55 | //on idle
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56 | if(PeekMessage(&msg, 0, 0, 0, PM_NOREMOVE)==0)SendMessage(GetActiveWindow(), WM_MY_IDLE, 0, 0); |
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57 | } |
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58 | return (int) msg.wParam; |
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59 | } |
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60 | |||
61 | //////////////////////////////////////////////////////////////////////
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62 | // Construction/Destruction
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63 | //////////////////////////////////////////////////////////////////////
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64 | |||
65 | |||
66 | GLTestWnd::GLTestWnd(LPSTR cmd) |
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67 | { |
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68 | ///////////////////////
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69 | //Parse Command Line
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70 | if(cmd) ParseCommandLine(cmd);
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71 | |||
72 | //////////////////////
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73 | //create the window
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74 | CreateWindowGL(); |
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75 | } |
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76 | |||
77 | GLTestWnd::GLTestWnd(int argc, char**argv) |
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78 | { |
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79 | BasicTestWin::ParseSiftParam(argc, argv); |
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80 | CreateWindowGL(); |
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81 | } |
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82 | |||
83 | GLTestWnd::~GLTestWnd() |
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84 | { |
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85 | |||
86 | } |
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87 | |||
88 | void GLTestWnd::CreateWindowGL()
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89 | { |
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90 | _hWndMain = NULL;
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91 | RegisterWindowClass(); |
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92 | HWND hWnd = CreateWindow("SIFT_GPU_WND", "SIFT_GPU", |
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93 | WS_OVERLAPPEDWINDOW|WS_CLIPCHILDREN, |
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94 | CW_USEDEFAULT, CW_USEDEFAULT, |
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95 | 600, 450, NULL, NULL, NULL, this); |
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96 | ShowWindow(hWnd, SW_SHOW); |
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97 | UpdateWindow(hWnd); |
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98 | |||
99 | } |
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100 | LRESULT CALLBACK GLTestWnd::___WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) |
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101 | { |
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102 | static int nWnd=0; |
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103 | GLTestWnd *pWnd; |
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104 | if(message==WM_CREATE)
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105 | { |
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106 | LPCREATESTRUCT cs = (LPCREATESTRUCT)lParam; |
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107 | pWnd = (GLTestWnd*)cs->lpCreateParams; |
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108 | pWnd->_hWndMain = hWnd; |
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109 | SetWindowLong(hWnd,0,(long)(pWnd)); |
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110 | nWnd++; |
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111 | |||
112 | }else if(message== WM_DESTROY) |
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113 | { |
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114 | pWnd=(GLTestWnd*)GetWindowLong(hWnd,0);
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115 | delete pWnd;
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116 | SetWindowLong(hWnd,0,0); |
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117 | nWnd--; |
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118 | if(nWnd==0) |
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119 | PostQuitMessage(0);
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120 | pWnd = NULL;
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121 | }else
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122 | { |
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123 | pWnd=(GLTestWnd*)GetWindowLong(hWnd,0);
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124 | } |
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125 | if(pWnd)
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126 | return pWnd->_WndProc(message,wParam,lParam);
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127 | else
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128 | return DefWindowProc(hWnd, message, wParam, lParam);
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129 | |||
130 | } |
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131 | |||
132 | void GLTestWnd::RegisterWindowClass()
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133 | { |
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134 | static int registered = 0; |
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135 | if(registered) return; |
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136 | WNDCLASSEX wcex; |
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137 | wcex.cbSize = sizeof(WNDCLASSEX);
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138 | wcex.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; |
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139 | wcex.lpfnWndProc = (WNDPROC)___WndProc; |
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140 | wcex.cbClsExtra = 0;
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141 | wcex.cbWndExtra = 4;
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142 | wcex.hInstance = 0;
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143 | wcex.hIcon = NULL;
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144 | wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
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145 | wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
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146 | wcex.lpszMenuName = NULL;;
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147 | wcex.lpszClassName = "SIFT_GPU_WND";
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148 | wcex.hIconSm = NULL;
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149 | RegisterClassEx(&wcex); |
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150 | registered = 1;
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151 | } |
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152 | |||
153 | |||
154 | LRESULT GLTestWnd::_WndProc(UINT message, WPARAM wParam, LPARAM lParam) |
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155 | { |
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156 | |||
157 | |||
158 | switch (message)
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159 | { |
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160 | case WM_CREATE:
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161 | { |
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162 | if(_win_x !=-1) |
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163 | { |
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164 | LPCREATESTRUCT cs = (LPCREATESTRUCT)lParam; |
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165 | MoveWindow(_hWndMain, _win_x, _win_y, cs->cx, cs->cy, 0);
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166 | } |
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167 | SetDisplaySize(600, 450); |
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168 | HDC hdc = GetDC(_hWndMain); |
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169 | glCreateRC(hdc); |
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170 | if(_hglrc == NULL) exit(0); |
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171 | ReleaseDC(_hWndMain,hdc); |
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172 | |||
173 | } |
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174 | break;
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175 | case WM_SIZE:
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176 | { |
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177 | glResize(LOWORD(lParam),HIWORD(lParam)); |
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178 | } |
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179 | break;
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180 | case WM_PAINT:
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181 | { |
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182 | PAINTSTRUCT ps; |
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183 | HDC hdc = BeginPaint(_hWndMain, &ps); |
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184 | ///
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185 | glPaint(hdc); |
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186 | ///
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187 | EndPaint(_hWndMain, &ps); |
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188 | } |
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189 | break;
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190 | case WM_CHAR:
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191 | KeyInput((int) wParam);
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192 | InvalidateRect(_hWndMain, NULL, FALSE);
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193 | break;
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194 | case WM_LBUTTONDOWN:
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195 | { |
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196 | int xPos = GET_X_LPARAM(lParam);
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197 | int yPos = GET_Y_LPARAM(lParam);
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198 | StartMotion(xPos, yPos); |
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199 | } |
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200 | break;
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201 | case WM_LBUTTONUP:
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202 | EndMotion(); |
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203 | break;
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204 | case WM_MOUSEMOVE:
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205 | if( wParam & MK_LBUTTON)
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206 | { |
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207 | int xPos = GET_X_LPARAM(lParam);
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208 | int yPos = GET_Y_LPARAM(lParam);
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209 | MoveMouse(xPos, yPos); |
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210 | } |
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211 | case WM_ERASEBKGND:
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212 | return TRUE;
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213 | case WM_MY_IDLE:
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214 | OnIdle(); |
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215 | return TRUE;
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216 | case WM_DESTROY:
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217 | PostQuitMessage(0);
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218 | break;
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219 | default:
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220 | return DefWindowProc(_hWndMain, message, wParam, lParam);
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221 | } |
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222 | return 0; |
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223 | } |
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224 | void GLTestWnd::glCreateRC(HDC hdc)
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225 | { |
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226 | int pixelformat;
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227 | PIXELFORMATDESCRIPTOR pfd = |
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228 | { |
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229 | sizeof(PIXELFORMATDESCRIPTOR),1, |
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230 | PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL|PFD_DOUBLEBUFFER, |
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231 | PFD_TYPE_RGBA,24,0, 0, 0, 0, 0, 0,0,0,0,0, 0, 0, 0,16,0,0, |
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232 | PFD_MAIN_PLANE,0,0, 0, 0 |
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233 | }; |
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234 | if ((pixelformat = ChoosePixelFormat(hdc, &pfd)) ==0)return ; |
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235 | if (SetPixelFormat(hdc, pixelformat, &pfd) == FALSE)return ; |
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236 | pixelformat =::GetPixelFormat(hdc); |
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237 | ::DescribePixelFormat(hdc, pixelformat, sizeof(pfd), &pfd);
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238 | |||
239 | //
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240 | _hglrc = wglCreateContext(hdc); |
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241 | wglMakeCurrent(hdc, _hglrc); |
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242 | |||
243 | glMatrixMode(GL_MODELVIEW); |
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244 | glLoadIdentity(); |
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245 | |||
246 | RunSiftGPU(); |
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247 | |||
248 | wglMakeCurrent(NULL, NULL); |
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249 | |||
250 | } |
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251 | |||
252 | void GLTestWnd::glResize(int w, int h) |
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253 | { |
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254 | ReShape(w, h); |
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255 | } |
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256 | |||
257 | void GLTestWnd::glPaint(HDC hdc)
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258 | { |
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259 | wglMakeCurrent(hdc,HGLRC(_hglrc)); |
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260 | Display(); |
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261 | SwapBuffers(hdc); |
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262 | } |
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263 | |||
264 | void GLTestWnd::ParseCommandLine(LPSTR cmd)
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265 | { |
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266 | int argc=0; |
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267 | char**argv = new char*[256]; |
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268 | if(*cmd == 0) return; |
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269 | do
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270 | { |
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271 | while(*cmd ==' ') cmd++; |
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272 | if(*cmd)
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273 | { |
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274 | argv[argc++] = cmd; |
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275 | } |
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276 | while(*cmd && *cmd != ' ') cmd++; |
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277 | if(*cmd==' ') *cmd++ = 0; |
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278 | |||
279 | }while(*cmd && argc <256); |
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280 | BasicTestWin::ParseSiftParam(argc, argv); |
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281 | } |
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282 | |||
283 | void GLTestWnd::SetDisplaySize(int w, int h) |
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284 | { |
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285 | RECT rc; int dw, dh;
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286 | GetClientRect(_hWndMain, &rc); |
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287 | |||
288 | dw = w - rc.right; |
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289 | dh = h - rc.bottom; |
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290 | GetWindowRect(_hWndMain, &rc); |
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291 | |||
292 | MoveWindow(_hWndMain, rc.left, rc.top, rc.right - rc.left + dw, |
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293 | rc.bottom - rc.top + dh, TRUE); |
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294 | |||
295 | } |
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296 | |||
297 | void GLTestWnd::SetWindowTitle(char *title) |
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298 | { |
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299 | SetWindowText(_hWndMain, title); |
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300 | } |
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301 | |||
302 | void GLTestWnd::UpdateDisplay()
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303 | { |
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304 | InvalidateRect(_hWndMain, NULL,0); |
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305 | } |
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306 |