| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: glcanvas.cpp |
| 3 | // Purpose: wxGLCanvas, for using OpenGL with wxWindows under MS Windows |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 04/01/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifdef __GNUG__ |
| 13 | #pragma implementation "glcanvas.h" |
| 14 | #endif |
| 15 | |
| 16 | #include "wx/wxprec.h" |
| 17 | |
| 18 | #if defined(__BORLANDC__) |
| 19 | #pragma hdrstop |
| 20 | #endif |
| 21 | |
| 22 | #include <wx/setup.h> |
| 23 | |
| 24 | #if wxUSE_GLCANVAS |
| 25 | |
| 26 | #ifndef WX_PRECOMP |
| 27 | #include <wx/frame.h> |
| 28 | #endif |
| 29 | |
| 30 | #include <wx/msw/private.h> |
| 31 | #include <wx/settings.h> |
| 32 | #include <wx/log.h> |
| 33 | |
| 34 | #include <wx/glcanvas.h> |
| 35 | |
| 36 | wxChar wxGLCanvasClassName[] = wxT("wxGLCanvasClass"); |
| 37 | |
| 38 | LRESULT WXDLLEXPORT APIENTRY _EXPORT wxWndProc(HWND hWnd, UINT message, |
| 39 | WPARAM wParam, LPARAM lParam); |
| 40 | |
| 41 | /* |
| 42 | * GLContext implementation |
| 43 | */ |
| 44 | |
| 45 | wxGLContext::wxGLContext(bool isRGB, wxGLCanvas *win, const wxPalette& palette) |
| 46 | { |
| 47 | m_window = win; |
| 48 | |
| 49 | m_hDC = win->GetHDC(); |
| 50 | |
| 51 | m_glContext = wglCreateContext((HDC) m_hDC); |
| 52 | wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") ); |
| 53 | |
| 54 | wglMakeCurrent((HDC) m_hDC, m_glContext); |
| 55 | } |
| 56 | |
| 57 | wxGLContext::wxGLContext( |
| 58 | bool isRGB, wxGLCanvas *win, |
| 59 | const wxPalette& palette, |
| 60 | const wxGLContext *other /* for sharing display lists */ |
| 61 | ) |
| 62 | { |
| 63 | m_window = win; |
| 64 | |
| 65 | m_hDC = win->GetHDC(); |
| 66 | |
| 67 | m_glContext = wglCreateContext((HDC) m_hDC); |
| 68 | wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") ); |
| 69 | |
| 70 | if( other != 0 ) |
| 71 | wglShareLists( other->m_glContext, m_glContext ); |
| 72 | |
| 73 | wglMakeCurrent((HDC) m_hDC, m_glContext); |
| 74 | } |
| 75 | |
| 76 | wxGLContext::~wxGLContext() |
| 77 | { |
| 78 | if (m_glContext) |
| 79 | { |
| 80 | wglMakeCurrent(NULL, NULL); |
| 81 | wglDeleteContext(m_glContext); |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | void wxGLContext::SwapBuffers() |
| 86 | { |
| 87 | if (m_glContext) |
| 88 | { |
| 89 | wglMakeCurrent((HDC) m_hDC, m_glContext); |
| 90 | ::SwapBuffers((HDC) m_hDC); //blits the backbuffer into DC |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | void wxGLContext::SetCurrent() |
| 95 | { |
| 96 | if (m_glContext) |
| 97 | { |
| 98 | wglMakeCurrent((HDC) m_hDC, m_glContext); |
| 99 | } |
| 100 | |
| 101 | /* |
| 102 | setupPixelFormat(hDC); |
| 103 | setupPalette(hDC); |
| 104 | */ |
| 105 | } |
| 106 | |
| 107 | void wxGLContext::SetColour(const char *colour) |
| 108 | { |
| 109 | float r = 0.0; |
| 110 | float g = 0.0; |
| 111 | float b = 0.0; |
| 112 | wxColour *col = wxTheColourDatabase->FindColour(colour); |
| 113 | if (col) |
| 114 | { |
| 115 | r = (float)(col->Red()/256.0); |
| 116 | g = (float)(col->Green()/256.0); |
| 117 | b = (float)(col->Blue()/256.0); |
| 118 | glColor3f( r, g, b); |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | |
| 123 | /* |
| 124 | * wxGLCanvas implementation |
| 125 | */ |
| 126 | |
| 127 | IMPLEMENT_CLASS(wxGLCanvas, wxScrolledWindow) |
| 128 | |
| 129 | BEGIN_EVENT_TABLE(wxGLCanvas, wxScrolledWindow) |
| 130 | EVT_SIZE(wxGLCanvas::OnSize) |
| 131 | EVT_PALETTE_CHANGED(wxGLCanvas::OnPaletteChanged) |
| 132 | EVT_QUERY_NEW_PALETTE(wxGLCanvas::OnQueryNewPalette) |
| 133 | END_EVENT_TABLE() |
| 134 | |
| 135 | wxGLCanvas::wxGLCanvas(wxWindow *parent, wxWindowID id, |
| 136 | const wxPoint& pos, const wxSize& size, long style, const wxString& name, |
| 137 | int *attribList, const wxPalette& palette) : wxScrolledWindow() |
| 138 | { |
| 139 | m_glContext = (wxGLContext*) NULL; |
| 140 | |
| 141 | bool ret = Create(parent, id, pos, size, style, name); |
| 142 | |
| 143 | if ( ret ) |
| 144 | { |
| 145 | SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); |
| 146 | SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT)); |
| 147 | } |
| 148 | |
| 149 | m_hDC = (WXHDC) ::GetDC((HWND) GetHWND()); |
| 150 | |
| 151 | SetupPixelFormat(attribList); |
| 152 | SetupPalette(palette); |
| 153 | |
| 154 | m_glContext = new wxGLContext(TRUE, this, palette); |
| 155 | } |
| 156 | |
| 157 | wxGLCanvas::wxGLCanvas( wxWindow *parent, |
| 158 | const wxGLContext *shared, wxWindowID id, |
| 159 | const wxPoint& pos, const wxSize& size, long style, const wxString& name, |
| 160 | int *attribList, const wxPalette& palette ) |
| 161 | : wxScrolledWindow() |
| 162 | { |
| 163 | m_glContext = (wxGLContext*) NULL; |
| 164 | |
| 165 | bool ret = Create(parent, id, pos, size, style, name); |
| 166 | |
| 167 | if ( ret ) |
| 168 | { |
| 169 | SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); |
| 170 | SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT)); |
| 171 | } |
| 172 | |
| 173 | m_hDC = (WXHDC) ::GetDC((HWND) GetHWND()); |
| 174 | |
| 175 | SetupPixelFormat(attribList); |
| 176 | SetupPalette(palette); |
| 177 | |
| 178 | m_glContext = new wxGLContext(TRUE, this, palette, shared ); |
| 179 | } |
| 180 | |
| 181 | // Not very useful for wxMSW, but this is to be wxGTK compliant |
| 182 | |
| 183 | wxGLCanvas::wxGLCanvas( wxWindow *parent, const wxGLCanvas *shared, wxWindowID id, |
| 184 | const wxPoint& pos, const wxSize& size, long style, const wxString& name, |
| 185 | int *attribList, const wxPalette& palette ): |
| 186 | wxScrolledWindow() |
| 187 | { |
| 188 | m_glContext = (wxGLContext*) NULL; |
| 189 | |
| 190 | bool ret = Create(parent, id, pos, size, style, name); |
| 191 | |
| 192 | if ( ret ) |
| 193 | { |
| 194 | SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); |
| 195 | SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT)); |
| 196 | } |
| 197 | |
| 198 | m_hDC = (WXHDC) ::GetDC((HWND) GetHWND()); |
| 199 | |
| 200 | SetupPixelFormat(attribList); |
| 201 | SetupPalette(palette); |
| 202 | |
| 203 | wxGLContext *sharedContext=0; |
| 204 | if (shared) sharedContext=shared->GetContext(); |
| 205 | m_glContext = new wxGLContext(TRUE, this, palette, sharedContext ); |
| 206 | } |
| 207 | |
| 208 | wxGLCanvas::~wxGLCanvas() |
| 209 | { |
| 210 | if (m_glContext) |
| 211 | delete m_glContext; |
| 212 | |
| 213 | ::ReleaseDC((HWND) GetHWND(), (HDC) m_hDC); |
| 214 | } |
| 215 | |
| 216 | // Replaces wxWindow::Create functionality, since we need to use a different window class |
| 217 | bool wxGLCanvas::Create(wxWindow *parent, wxWindowID id, |
| 218 | const wxPoint& pos, const wxSize& size, long style, const wxString& name) |
| 219 | { |
| 220 | /* |
| 221 | Suggestion from Kelly Brock <kbrock@8cs.com> (not yet implemented): |
| 222 | |
| 223 | OpenGL corruption fix is simple assuming it doesn't screw anything else |
| 224 | up. Add the following line to the top of the create function: |
| 225 | |
| 226 | wxSize parentSize = GetClientSize(); |
| 227 | |
| 228 | All locations within the function that use 'size' are changed to |
| 229 | 'parentSize'. |
| 230 | The above corrects the initial display corruption with the GeForce and |
| 231 | TNT2, not sure about other NVidia cards yet. |
| 232 | */ |
| 233 | |
| 234 | static bool registeredGLCanvasClass = FALSE; |
| 235 | |
| 236 | // We have to register a special window class because we need |
| 237 | // the CS_OWNDC style for GLCanvas. |
| 238 | |
| 239 | /* |
| 240 | From Angel Popov <jumpo@bitex.com> |
| 241 | |
| 242 | Here are two snips from a dicussion in the OpenGL Gamedev list that explains |
| 243 | how this problem can be fixed: |
| 244 | |
| 245 | "There are 5 common DCs available in Win95. These are aquired when you call |
| 246 | GetDC or GetDCEx from a window that does _not_ have the OWNDC flag. |
| 247 | OWNDC flagged windows do not get their DC from the common DC pool, the issue |
| 248 | is they require 800 bytes each from the limited 64Kb local heap for GDI." |
| 249 | |
| 250 | "The deal is, if you hold onto one of the 5 shared DC's too long (as GL apps |
| 251 | do), Win95 will actually "steal" it from you. MakeCurrent fails, |
| 252 | apparently, because Windows re-assigns the HDC to a different window. The |
| 253 | only way to prevent this, the only reliable means, is to set CS_OWNDC." |
| 254 | */ |
| 255 | |
| 256 | if (!registeredGLCanvasClass) |
| 257 | { |
| 258 | WNDCLASS wndclass; |
| 259 | |
| 260 | static const long styleNormal = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_OWNDC; |
| 261 | |
| 262 | // the fields which are common to all classes |
| 263 | wndclass.lpfnWndProc = (WNDPROC)wxWndProc; |
| 264 | wndclass.cbClsExtra = 0; |
| 265 | wndclass.cbWndExtra = sizeof( DWORD ); // VZ: what is this DWORD used for? |
| 266 | wndclass.hInstance = wxhInstance; |
| 267 | wndclass.hIcon = (HICON) NULL; |
| 268 | wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW); |
| 269 | wndclass.lpszMenuName = NULL; |
| 270 | |
| 271 | // Register the GLCanvas class name |
| 272 | wndclass.hbrBackground = (HBRUSH)NULL; |
| 273 | wndclass.lpszClassName = wxGLCanvasClassName; |
| 274 | wndclass.style = styleNormal; |
| 275 | |
| 276 | if ( !RegisterClass(&wndclass) ) |
| 277 | { |
| 278 | wxLogLastError(wxT("RegisterClass(wxGLCanvasClass)")); |
| 279 | return FALSE; |
| 280 | } |
| 281 | |
| 282 | registeredGLCanvasClass = TRUE; |
| 283 | } |
| 284 | |
| 285 | wxCHECK_MSG( parent, FALSE, wxT("can't create wxWindow without parent") ); |
| 286 | |
| 287 | if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) ) |
| 288 | return FALSE; |
| 289 | |
| 290 | parent->AddChild(this); |
| 291 | |
| 292 | DWORD msflags = 0; |
| 293 | if ( style & wxBORDER ) |
| 294 | msflags |= WS_BORDER; |
| 295 | if ( style & wxTHICK_FRAME ) |
| 296 | msflags |= WS_THICKFRAME; |
| 297 | |
| 298 | /* |
| 299 | A general rule with OpenGL and Win32 is that any window that will have a |
| 300 | HGLRC built for it must have two flags: WS_CLIPCHILDREN & WS_CLIPSIBLINGS. |
| 301 | You can find references about this within the knowledge base and most OpenGL |
| 302 | books that contain the wgl function descriptions. |
| 303 | */ |
| 304 | |
| 305 | msflags |= WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS; |
| 306 | // if ( style & wxCLIP_CHILDREN ) |
| 307 | // msflags |= WS_CLIPCHILDREN; |
| 308 | msflags |= WS_CLIPCHILDREN; |
| 309 | |
| 310 | bool want3D; |
| 311 | WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D); |
| 312 | |
| 313 | // Even with extended styles, need to combine with WS_BORDER |
| 314 | // for them to look right. |
| 315 | if ( want3D || (m_windowStyle & wxSIMPLE_BORDER) || (m_windowStyle & wxRAISED_BORDER ) || |
| 316 | (m_windowStyle & wxSUNKEN_BORDER) || (m_windowStyle & wxDOUBLE_BORDER)) |
| 317 | { |
| 318 | msflags |= WS_BORDER; |
| 319 | } |
| 320 | |
| 321 | // calculate the value to return from WM_GETDLGCODE handler |
| 322 | if ( GetWindowStyleFlag() & wxWANTS_CHARS ) |
| 323 | { |
| 324 | // want everything: i.e. all keys and WM_CHAR message |
| 325 | m_lDlgCode = DLGC_WANTARROWS | DLGC_WANTCHARS | |
| 326 | DLGC_WANTTAB | DLGC_WANTMESSAGE; |
| 327 | } |
| 328 | |
| 329 | MSWCreate(m_windowId, parent, wxGLCanvasClassName, this, NULL, |
| 330 | pos.x, pos.y, |
| 331 | WidthDefault(size.x), HeightDefault(size.y), |
| 332 | msflags, NULL, exStyle); |
| 333 | |
| 334 | return TRUE; |
| 335 | } |
| 336 | |
| 337 | void wxGLCanvas::SetupPixelFormat(int *attribList) // (HDC hDC) |
| 338 | { |
| 339 | int pixelFormat; |
| 340 | PIXELFORMATDESCRIPTOR pfd = { |
| 341 | sizeof(PIXELFORMATDESCRIPTOR), /* size */ |
| 342 | 1, /* version */ |
| 343 | PFD_SUPPORT_OPENGL | |
| 344 | PFD_DRAW_TO_WINDOW | |
| 345 | PFD_DOUBLEBUFFER, /* support double-buffering */ |
| 346 | PFD_TYPE_RGBA, /* color type */ |
| 347 | 16, /* prefered color depth */ |
| 348 | 0, 0, 0, 0, 0, 0, /* color bits (ignored) */ |
| 349 | 0, /* no alpha buffer */ |
| 350 | 0, /* alpha bits (ignored) */ |
| 351 | 0, /* no accumulation buffer */ |
| 352 | 0, 0, 0, 0, /* accum bits (ignored) */ |
| 353 | 16, /* depth buffer */ |
| 354 | 0, /* no stencil buffer */ |
| 355 | 0, /* no auxiliary buffers */ |
| 356 | PFD_MAIN_PLANE, /* main layer */ |
| 357 | 0, /* reserved */ |
| 358 | 0, 0, 0, /* no layer, visible, damage masks */ |
| 359 | }; |
| 360 | |
| 361 | if (attribList) { |
| 362 | pfd.dwFlags &= ~PFD_DOUBLEBUFFER; |
| 363 | pfd.iPixelType = PFD_TYPE_COLORINDEX; |
| 364 | pfd.cColorBits = 0; |
| 365 | int arg=0; |
| 366 | |
| 367 | while( (attribList[arg]!=0) ) |
| 368 | { |
| 369 | switch( attribList[arg++] ) |
| 370 | { |
| 371 | case WX_GL_RGBA: |
| 372 | pfd.iPixelType = PFD_TYPE_RGBA; |
| 373 | break; |
| 374 | case WX_GL_BUFFER_SIZE: |
| 375 | pfd.cColorBits = attribList[arg++]; |
| 376 | break; |
| 377 | case WX_GL_LEVEL: |
| 378 | // this member looks like it may be obsolete |
| 379 | if (attribList[arg] > 0) { |
| 380 | pfd.iLayerType = PFD_OVERLAY_PLANE; |
| 381 | } else if (attribList[arg] < 0) { |
| 382 | pfd.iLayerType = PFD_UNDERLAY_PLANE; |
| 383 | } else { |
| 384 | pfd.iLayerType = PFD_MAIN_PLANE; |
| 385 | } |
| 386 | arg++; |
| 387 | break; |
| 388 | case WX_GL_DOUBLEBUFFER: |
| 389 | pfd.dwFlags |= PFD_DOUBLEBUFFER; |
| 390 | break; |
| 391 | case WX_GL_STEREO: |
| 392 | pfd.dwFlags |= PFD_STEREO; |
| 393 | break; |
| 394 | case WX_GL_AUX_BUFFERS: |
| 395 | pfd.cAuxBuffers = attribList[arg++]; |
| 396 | break; |
| 397 | case WX_GL_MIN_RED: |
| 398 | pfd.cColorBits += (pfd.cRedBits = attribList[arg++]); |
| 399 | break; |
| 400 | case WX_GL_MIN_GREEN: |
| 401 | pfd.cColorBits += (pfd.cGreenBits = attribList[arg++]); |
| 402 | break; |
| 403 | case WX_GL_MIN_BLUE: |
| 404 | pfd.cColorBits += (pfd.cBlueBits = attribList[arg++]); |
| 405 | break; |
| 406 | case WX_GL_MIN_ALPHA: |
| 407 | // doesn't count in cColorBits |
| 408 | pfd.cAlphaBits = attribList[arg++]; |
| 409 | break; |
| 410 | case WX_GL_DEPTH_SIZE: |
| 411 | pfd.cDepthBits = attribList[arg++]; |
| 412 | break; |
| 413 | case WX_GL_STENCIL_SIZE: |
| 414 | pfd.cStencilBits = attribList[arg++]; |
| 415 | break; |
| 416 | case WX_GL_MIN_ACCUM_RED: |
| 417 | pfd.cAccumBits += (pfd.cAccumRedBits = attribList[arg++]); |
| 418 | break; |
| 419 | case WX_GL_MIN_ACCUM_GREEN: |
| 420 | pfd.cAccumBits += (pfd.cAccumGreenBits = attribList[arg++]); |
| 421 | break; |
| 422 | case WX_GL_MIN_ACCUM_BLUE: |
| 423 | pfd.cAccumBits += (pfd.cAccumBlueBits = attribList[arg++]); |
| 424 | break; |
| 425 | case WX_GL_MIN_ACCUM_ALPHA: |
| 426 | pfd.cAccumBits += (pfd.cAccumAlphaBits = attribList[arg++]); |
| 427 | break; |
| 428 | default: |
| 429 | break; |
| 430 | } |
| 431 | } |
| 432 | } |
| 433 | pixelFormat = ChoosePixelFormat((HDC) m_hDC, &pfd); |
| 434 | if (pixelFormat == 0) { |
| 435 | MessageBox(WindowFromDC((HDC) m_hDC), wxT("ChoosePixelFormat failed."), wxT("Error"), |
| 436 | MB_ICONERROR | MB_OK); |
| 437 | exit(1); |
| 438 | } |
| 439 | |
| 440 | if (SetPixelFormat((HDC) m_hDC, pixelFormat, &pfd) != TRUE) { |
| 441 | MessageBox(WindowFromDC((HDC) m_hDC), wxT("SetPixelFormat failed."), wxT("Error"), |
| 442 | MB_ICONERROR | MB_OK); |
| 443 | exit(1); |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | void wxGLCanvas::SetupPalette(const wxPalette& palette) |
| 448 | { |
| 449 | int pixelFormat = GetPixelFormat((HDC) m_hDC); |
| 450 | PIXELFORMATDESCRIPTOR pfd; |
| 451 | |
| 452 | DescribePixelFormat((HDC) m_hDC, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd); |
| 453 | |
| 454 | if (pfd.dwFlags & PFD_NEED_PALETTE) |
| 455 | { |
| 456 | } |
| 457 | else |
| 458 | { |
| 459 | return; |
| 460 | } |
| 461 | |
| 462 | m_palette = palette; |
| 463 | |
| 464 | if ( !m_palette.Ok() ) |
| 465 | { |
| 466 | m_palette = CreateDefaultPalette(); |
| 467 | } |
| 468 | |
| 469 | if (m_palette.Ok()) |
| 470 | { |
| 471 | SelectPalette((HDC) m_hDC, (HPALETTE) m_palette.GetHPALETTE(), FALSE); |
| 472 | RealizePalette((HDC) m_hDC); |
| 473 | } |
| 474 | } |
| 475 | |
| 476 | wxPalette wxGLCanvas::CreateDefaultPalette() |
| 477 | { |
| 478 | PIXELFORMATDESCRIPTOR pfd; |
| 479 | int paletteSize; |
| 480 | int pixelFormat = GetPixelFormat((HDC) m_hDC); |
| 481 | |
| 482 | DescribePixelFormat((HDC) m_hDC, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd); |
| 483 | |
| 484 | paletteSize = 1 << pfd.cColorBits; |
| 485 | |
| 486 | LOGPALETTE* pPal = |
| 487 | (LOGPALETTE*) malloc(sizeof(LOGPALETTE) + paletteSize * sizeof(PALETTEENTRY)); |
| 488 | pPal->palVersion = 0x300; |
| 489 | pPal->palNumEntries = paletteSize; |
| 490 | |
| 491 | /* build a simple RGB color palette */ |
| 492 | { |
| 493 | int redMask = (1 << pfd.cRedBits) - 1; |
| 494 | int greenMask = (1 << pfd.cGreenBits) - 1; |
| 495 | int blueMask = (1 << pfd.cBlueBits) - 1; |
| 496 | int i; |
| 497 | |
| 498 | for (i=0; i<paletteSize; ++i) { |
| 499 | pPal->palPalEntry[i].peRed = |
| 500 | (((i >> pfd.cRedShift) & redMask) * 255) / redMask; |
| 501 | pPal->palPalEntry[i].peGreen = |
| 502 | (((i >> pfd.cGreenShift) & greenMask) * 255) / greenMask; |
| 503 | pPal->palPalEntry[i].peBlue = |
| 504 | (((i >> pfd.cBlueShift) & blueMask) * 255) / blueMask; |
| 505 | pPal->palPalEntry[i].peFlags = 0; |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | HPALETTE hPalette = CreatePalette(pPal); |
| 510 | free(pPal); |
| 511 | |
| 512 | wxPalette palette; |
| 513 | palette.SetHPALETTE((WXHPALETTE) hPalette); |
| 514 | |
| 515 | return palette; |
| 516 | } |
| 517 | |
| 518 | void wxGLCanvas::SwapBuffers() |
| 519 | { |
| 520 | if (m_glContext) |
| 521 | m_glContext->SwapBuffers(); |
| 522 | } |
| 523 | |
| 524 | void wxGLCanvas::OnSize(wxSizeEvent& event) |
| 525 | { |
| 526 | int width, height; |
| 527 | GetClientSize(& width, & height); |
| 528 | |
| 529 | if (m_glContext) |
| 530 | { |
| 531 | m_glContext->SetCurrent(); |
| 532 | |
| 533 | glViewport(0, 0, (GLint)width, (GLint)height); |
| 534 | glMatrixMode(GL_PROJECTION); |
| 535 | glLoadIdentity(); |
| 536 | glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 15.0 ); |
| 537 | glMatrixMode(GL_MODELVIEW); |
| 538 | } |
| 539 | } |
| 540 | |
| 541 | void wxGLCanvas::SetCurrent() |
| 542 | { |
| 543 | if (m_glContext) |
| 544 | { |
| 545 | m_glContext->SetCurrent(); |
| 546 | } |
| 547 | } |
| 548 | |
| 549 | void wxGLCanvas::SetColour(const char *colour) |
| 550 | { |
| 551 | if (m_glContext) |
| 552 | m_glContext->SetColour(colour); |
| 553 | } |
| 554 | |
| 555 | // TODO: Have to have this called by parent frame (?) |
| 556 | // So we need wxFrame to call OnQueryNewPalette for all children... |
| 557 | void wxGLCanvas::OnQueryNewPalette(wxQueryNewPaletteEvent& event) |
| 558 | { |
| 559 | /* realize palette if this is the current window */ |
| 560 | if ( GetPalette()->Ok() ) { |
| 561 | ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE()); |
| 562 | ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE); |
| 563 | ::RealizePalette((HDC) GetHDC()); |
| 564 | Refresh(); |
| 565 | event.SetPaletteRealized(TRUE); |
| 566 | } |
| 567 | else |
| 568 | event.SetPaletteRealized(FALSE); |
| 569 | } |
| 570 | |
| 571 | // I think this doesn't have to be propagated to child windows. |
| 572 | void wxGLCanvas::OnPaletteChanged(wxPaletteChangedEvent& event) |
| 573 | { |
| 574 | /* realize palette if this is *not* the current window */ |
| 575 | if ( GetPalette() && |
| 576 | GetPalette()->Ok() && (this != event.GetChangedWindow()) ) |
| 577 | { |
| 578 | ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE()); |
| 579 | ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE); |
| 580 | ::RealizePalette((HDC) GetHDC()); |
| 581 | Refresh(); |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | /* Give extensions proper function names. */ |
| 586 | |
| 587 | /* EXT_vertex_array */ |
| 588 | void glArrayElementEXT(GLint i) |
| 589 | { |
| 590 | } |
| 591 | |
| 592 | void glColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer) |
| 593 | { |
| 594 | } |
| 595 | |
| 596 | void glDrawArraysEXT(GLenum mode, GLint first, GLsizei count) |
| 597 | { |
| 598 | #ifdef GL_EXT_vertex_array |
| 599 | static PFNGLDRAWARRAYSEXTPROC proc = 0; |
| 600 | |
| 601 | if ( !proc ) |
| 602 | { |
| 603 | proc = (PFNGLDRAWARRAYSEXTPROC) wglGetProcAddress("glDrawArraysEXT"); |
| 604 | } |
| 605 | |
| 606 | if ( proc ) |
| 607 | (* proc) (mode, first, count); |
| 608 | #endif |
| 609 | } |
| 610 | |
| 611 | void glEdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *pointer) |
| 612 | { |
| 613 | } |
| 614 | |
| 615 | void glGetPointervEXT(GLenum pname, GLvoid* *params) |
| 616 | { |
| 617 | } |
| 618 | |
| 619 | void glIndexPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer) |
| 620 | { |
| 621 | } |
| 622 | |
| 623 | void glNormalPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer) |
| 624 | { |
| 625 | #ifdef GL_EXT_vertex_array |
| 626 | static PFNGLNORMALPOINTEREXTPROC proc = 0; |
| 627 | |
| 628 | if ( !proc ) |
| 629 | { |
| 630 | proc = (PFNGLNORMALPOINTEREXTPROC) wglGetProcAddress("glNormalPointerEXT"); |
| 631 | } |
| 632 | |
| 633 | if ( proc ) |
| 634 | (* proc) (type, stride, count, pointer); |
| 635 | #endif |
| 636 | } |
| 637 | |
| 638 | void glTexCoordPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer) |
| 639 | { |
| 640 | } |
| 641 | |
| 642 | void glVertexPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer) |
| 643 | { |
| 644 | #ifdef GL_EXT_vertex_array |
| 645 | static PFNGLVERTEXPOINTEREXTPROC proc = 0; |
| 646 | |
| 647 | if ( !proc ) |
| 648 | { |
| 649 | proc = (PFNGLVERTEXPOINTEREXTPROC) wglGetProcAddress("glVertexPointerEXT"); |
| 650 | } |
| 651 | if ( proc ) |
| 652 | (* proc) (size, type, stride, count, pointer); |
| 653 | #endif |
| 654 | } |
| 655 | |
| 656 | /* EXT_color_subtable */ |
| 657 | void glColorSubtableEXT(GLenum target, GLsizei start, GLsizei count, GLenum format, GLenum type, const GLvoid *table) |
| 658 | { |
| 659 | } |
| 660 | |
| 661 | /* EXT_color_table */ |
| 662 | void glColorTableEXT(GLenum target, GLenum internalformat, GLsizei width, GLenum format, GLenum type, const GLvoid *table) |
| 663 | { |
| 664 | } |
| 665 | |
| 666 | void glCopyColorTableEXT(GLenum target, GLenum internalformat, GLint x, GLint y, GLsizei width) |
| 667 | { |
| 668 | } |
| 669 | |
| 670 | void glGetColorTableEXT(GLenum target, GLenum format, GLenum type, GLvoid *table) |
| 671 | { |
| 672 | } |
| 673 | |
| 674 | void glGetColorTableParamaterfvEXT(GLenum target, GLenum pname, GLfloat *params) |
| 675 | { |
| 676 | } |
| 677 | |
| 678 | void glGetColorTavleParameterivEXT(GLenum target, GLenum pname, GLint *params) |
| 679 | { |
| 680 | } |
| 681 | |
| 682 | /* SGI_compiled_vertex_array */ |
| 683 | void glLockArraysSGI(GLint first, GLsizei count) |
| 684 | { |
| 685 | } |
| 686 | |
| 687 | void glUnlockArraysSGI() |
| 688 | { |
| 689 | } |
| 690 | |
| 691 | |
| 692 | /* SGI_cull_vertex */ |
| 693 | void glCullParameterdvSGI(GLenum pname, GLdouble* params) |
| 694 | { |
| 695 | } |
| 696 | |
| 697 | void glCullParameterfvSGI(GLenum pname, GLfloat* params) |
| 698 | { |
| 699 | } |
| 700 | |
| 701 | /* SGI_index_func */ |
| 702 | void glIndexFuncSGI(GLenum func, GLclampf ref) |
| 703 | { |
| 704 | } |
| 705 | |
| 706 | /* SGI_index_material */ |
| 707 | void glIndexMaterialSGI(GLenum face, GLenum mode) |
| 708 | { |
| 709 | } |
| 710 | |
| 711 | /* WIN_swap_hint */ |
| 712 | void glAddSwapHintRectWin(GLint x, GLint y, GLsizei width, GLsizei height) |
| 713 | { |
| 714 | } |
| 715 | |
| 716 | #endif |
| 717 | // wxUSE_GLCANVAS |