void DGSystem::init() {
if (!_isInitialized) {
log->trace(DGModSystem, "%s", DGMsg040000);
InitializeCriticalSection(&csSystemThread);
// Prepare the string to set the window title
WCHAR title[DGMaxPathLength];
MultiByteToWideChar(0, 0, config->script(), DGMaxFileLength, title, DGMaxFileLength);
WNDCLASSEX winClass;
winClass.lpszClassName = L"DG_WINDOWS_CLASS";
winClass.cbSize = sizeof(WNDCLASSEX);
winClass.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
winClass.lpfnWndProc = _WindowProc;
winClass.hInstance = NULL;
winClass.hIcon = LoadIcon(NULL, MAKEINTRESOURCE(100));
winClass.hIconSm = (HICON)LoadImage(GetModuleHandle(NULL), MAKEINTRESOURCE(100), IMAGE_ICON, 16, 16, 0);
winClass.hCursor = LoadCursor(NULL, IDC_ARROW);
winClass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
winClass.lpszMenuName = NULL;
winClass.cbClsExtra = 0;
winClass.cbWndExtra = 0;
if (!RegisterClassEx(&winClass))
return;
// Now we create the actual window
g_hWnd = CreateWindowEx(WS_EX_OVERLAPPEDWINDOW, L"DG_WINDOWS_CLASS", title,
WS_OVERLAPPEDWINDOW | WS_VISIBLE, 0, 0,
config->displayWidth, config->displayHeight, NULL, NULL, NULL, NULL );
if (g_hWnd == NULL)
return;
ShowWindow(g_hWnd, SW_SHOWNORMAL);
UpdateWindow(g_hWnd);
// Setup the OpenGL pixel format
GLuint PixelFormat;
PIXELFORMATDESCRIPTOR pfd;
memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW |PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 16;
pfd.cDepthBits = 16;
g_hDC = GetDC(g_hWnd);
PixelFormat = ChoosePixelFormat(g_hDC, &pfd);
SetPixelFormat( g_hDC, PixelFormat, &pfd);
g_hRC = wglCreateContext(g_hDC);
wglMakeCurrent(g_hDC, g_hRC);
// FIXME: This doesn't work if the CTRL key is pressed when launching
GetKeyboardState(defKeyboardState);
// Now we're ready to init the controller instance
control = &DGControl::getInstance();
control->init();
control->update();
// Check if we must enable vertical sync
if (config->verticalSync) {
// Get the available extensions in the card
char* extensions = (char*)glGetString(GL_EXTENSIONS);
// Is vertical sync possible?
if (strstr(extensions,"WGL_EXT_swap_control")) {
// If so get the address of the functions we defined before
wglSwapIntervalEXT = (PFNWGLEXTSWAPCONTROLPROC)
wglGetProcAddress("wglSwapIntervalEXT");
wglGetSwapIntervalEXT = (PFNWGLEXTGETSWAPINTERVALPROC)
wglGetProcAddress("wglGetSwapIntervalEXT");
// Go ahead and enable
wglSwapIntervalEXT(1);
}
else log->error(DGModSystem, "%s", DGMsg240003);
}
ShowCursor(FALSE);
_isInitialized = true;
log->trace(DGModSystem, "%s", DGMsg040001);
}
else log->warning(DGModSystem, "%s", DGMsg140002);
}
bool CWinAPIOpenGLWindow::Create(char* title, int width, int height, int bits, bool fullscreenflag, WNDPROC WndProc)
{
GLuint PixelFormat; // Holds The Results After Searching For A Match
WNDCLASS wc; // Windows Class Structure
DWORD dwExStyle; // Window Extended Style
DWORD dwStyle; // Window Style
RECT WindowRect; // Grabs Rectangle Upper Left / Lower Right Values
WindowRect.left=(long)0; // Set Left Value To 0
WindowRect.right=(long)width; // Set Right Value To Requested Width
WindowRect.top=(long)0; // Set Top Value To 0
WindowRect.bottom=(long)height; // Set Bottom Value To Requested Height
m_Fullscreen = fullscreenflag; // Set The Global Fullscreen Flag
m_hInstance = GetModuleHandle(NULL); // Grab An Instance For Our Window
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // Redraw On Size, And Own DC For Window.
wc.lpfnWndProc = (WNDPROC) WndProc; // WndProc Handles Messages
wc.cbClsExtra = 0; // No Extra Window Data
wc.cbWndExtra = 0; // No Extra Window Data
wc.hInstance = m_hInstance; // Set The Instance
wc.hIcon = LoadIcon(NULL, IDI_WINLOGO); // Load The Default Icon
wc.hCursor = LoadCursor(NULL, IDC_ARROW); // Load The Arrow Pointer
wc.hbrBackground = NULL; // No Background Required For GL
wc.lpszMenuName = NULL; // We Don't Want A Menu
wc.lpszClassName = "OpenGL"; // Set The Class Name
if (!RegisterClass(&wc)) // Attempt To Register The Window Class
{
MessageBox(NULL,"Failed To Register The Window Class.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (m_Fullscreen) // Attempt Fullscreen Mode?
{
DEVMODE dmScreenSettings; // Device Mode
memset(&dmScreenSettings,0,sizeof(dmScreenSettings)); // Makes Sure Memory's Cleared
dmScreenSettings.dmSize=sizeof(dmScreenSettings); // Size Of The Devmode Structure
dmScreenSettings.dmPelsWidth = width; // Selected Screen Width
dmScreenSettings.dmPelsHeight = height; // Selected Screen Height
dmScreenSettings.dmBitsPerPel = bits; // Selected Bits Per Pixel
dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
// Try To Set Selected Mode And Get Results. NOTE: CDS_FULLSCREEN Gets Rid Of Start Bar.
if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)
{
// If The Mode Fails, Offer Two Options. Quit Or Use Windowed Mode.
if (MessageBox(NULL,"The Requested Fullscreen Mode Is Not Supported By\nYour Video Card. Use Windowed Mode Instead?","NeHe GL",MB_YESNO|MB_ICONEXCLAMATION)==IDYES)
{
m_Fullscreen=FALSE; // Windowed Mode Selected. Fullscreen = FALSE
}
else
{
// Pop Up A Message Box Letting User Know The Program Is Closing.
MessageBox(NULL,"Program Will Now Close.","ERROR",MB_OK|MB_ICONSTOP);
return FALSE; // Return FALSE
}
}
}
if (m_Fullscreen) // Are We Still In Fullscreen Mode?
{
dwExStyle=WS_EX_APPWINDOW; // Window Extended Style
dwStyle=WS_POPUP; // Windows Style
ShowCursor(FALSE); // Hide Mouse Pointer
}
else
{
dwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE; // Window Extended Style
dwStyle=WS_OVERLAPPEDWINDOW; // Windows Style
}
AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle); // Adjust Window To True Requested Size
// Create The Window
if (!(m_hWnd=CreateWindowEx( dwExStyle, // Extended Style For The Window
"OpenGL", // Class Name
title, // Window Title
dwStyle | // Defined Window Style
WS_CLIPSIBLINGS | // Required Window Style
WS_CLIPCHILDREN, // Required Window Style
0, 0, // Window Position
WindowRect.right-WindowRect.left, // Calculate Window Width
WindowRect.bottom-WindowRect.top, // Calculate Window Height
NULL, // No Parent Window
NULL, // No Menu
m_hInstance, // Instance
NULL))) // Dont Pass Anything To WM_CREATE
{
Kill(); // Reset The Display
MessageBox(NULL,"Window Creation Error.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
static PIXELFORMATDESCRIPTOR pfd= // pfd Tells Windows How We Want Things To Be
{
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
bits, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
16, // 16Bit Z-Buffer (Depth Buffer)
8, // No Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
if (!(m_hDC=GetDC(m_hWnd))) // Did We Get A Device Context?
{
Kill(); // Reset The Display
MessageBox(NULL,"Can't Create A GL Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (!(PixelFormat=ChoosePixelFormat(m_hDC,&pfd))) // Did Windows Find A Matching Pixel Format?
{
Kill(); // Reset The Display
MessageBox(NULL,"Can't Find A Suitable PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if(!SetPixelFormat(m_hDC,PixelFormat,&pfd)) // Are We Able To Set The Pixel Format?
{
Kill(); // Reset The Display
MessageBox(NULL,"Can't Set The PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
HGLRC TempContext;
if (!(TempContext = wglCreateContext(m_hDC))) // Are We Able To Get A Rendering Context?
{
Kill(); // Reset The Display
MessageBox(NULL,"Can't Create A GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if(!wglMakeCurrent(m_hDC,TempContext)) // Try To Activate The Rendering Context
{
Kill(); // Reset The Display
MessageBox(NULL,"Can't Activate The GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
GLenum err = glewInit();
if (GLEW_OK != err)
{
MessageBox(NULL, "GLEW is not initialized!", "ERROR", MB_OK|MB_ICONEXCLAMATION);
}
int attribs[] =
{
WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
WGL_CONTEXT_MINOR_VERSION_ARB, 1,
WGL_CONTEXT_FLAGS_ARB, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
0
};
if(wglewIsSupported("WGL_ARB_create_context") == 1)
{
m_hRC = wglCreateContextAttribsARB(m_hDC,0, attribs);
wglMakeCurrent(NULL,NULL);
wglDeleteContext(TempContext);
wglMakeCurrent(m_hDC, m_hRC);
}
else
{ //It's not possible to make a GL 3.x context. Use the old style context (GL 2.1 and before)
m_hRC = TempContext;
}
ShowWindow(m_hWnd,SW_SHOW); // Show The Window
SetForegroundWindow(m_hWnd); // Slightly Higher Priority
SetFocus(m_hWnd); // Sets Keyboard Focus To The Window
//ReSizeGLScene(width, height); // Set Up Our Perspective GL Screen
/*if (!InitGL()) // Initialize Our Newly Created GL Window
{
Kill(); // Reset The Display
MessageBox(NULL,"Initialization Failed.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}*/
return true; // Success
}
bool GLWindow::DisplayWindow(int _width, int _height)
{
GLuint PixelFormat; // Holds The Results After Searching For A Match
DWORD dwExStyle; // Window Extended Style
DWORD dwStyle; // Window Style
RECT rcdesktop;
GetWindowRect(GetDesktopWindow(), &rcdesktop);
if (conf.fullscreen())
{
nBackbufferWidth = rcdesktop.right - rcdesktop.left;
nBackbufferHeight = rcdesktop.bottom - rcdesktop.top;
dwExStyle = WS_EX_APPWINDOW;
dwStyle = WS_POPUP;
ShowCursor(false);
}
else
{
dwExStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
dwStyle = WS_OVERLAPPEDWINDOW;
}
RECT rc;
rc.left = 0;
rc.top = 0;
rc.right = nBackbufferWidth;
rc.bottom = nBackbufferHeight;
AdjustWindowRectEx(&rc, dwStyle, false, dwExStyle);
int X = (rcdesktop.right - rcdesktop.left) / 2 - (rc.right - rc.left) / 2;
int Y = (rcdesktop.bottom - rcdesktop.top) / 2 - (rc.bottom - rc.top) / 2;
SetWindowLong(GShwnd, GWL_STYLE, dwStyle);
SetWindowLong(GShwnd, GWL_EXSTYLE, dwExStyle);
SetWindowPos(GShwnd, HWND_TOP, X, Y, rc.right - rc.left, rc.bottom - rc.top, SWP_SHOWWINDOW);
if (conf.fullscreen())
{
DEVMODE dmScreenSettings;
memset(&dmScreenSettings, 0, sizeof(dmScreenSettings));
dmScreenSettings.dmSize = sizeof(dmScreenSettings);
dmScreenSettings.dmPelsWidth = nBackbufferWidth;
dmScreenSettings.dmPelsHeight = nBackbufferHeight;
dmScreenSettings.dmBitsPerPel = 32;
dmScreenSettings.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
// Try To Set Selected Mode And Get Results. NOTE: CDS_FULLSCREEN Gets Rid Of Start Bar.
if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
{
if (MessageBox(NULL, "The Requested Fullscreen Mode Is Not Supported By\nYour Video Card. Use Windowed Mode Instead?", "NeHe GL", MB_YESNO | MB_ICONEXCLAMATION) == IDYES)
conf.setFullscreen(false);
else
return false;
}
}
else
{
// change to default resolution
ChangeDisplaySettings(NULL, 0);
}
PIXELFORMATDESCRIPTOR pfd = // pfd Tells Windows How We Want Things To Be
{
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
32, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // 8bit Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
24, // 24Bit Z-Buffer (Depth Buffer)
8, // 8bit Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
if (!(hDC = GetDC(GShwnd)))
{
MessageBox(NULL, "(1) Can't Create A GL Device Context.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
if (!(PixelFormat = ChoosePixelFormat(hDC, &pfd)))
{
MessageBox(NULL, "(2) Can't Find A Suitable PixelFormat.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
if (!SetPixelFormat(hDC, PixelFormat, &pfd))
{
MessageBox(NULL, "(3) Can't Set The PixelFormat.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
if (!(hRC = wglCreateContext(hDC)))
{
MessageBox(NULL, "(4) Can't Create A GL Rendering Context.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
if (!wglMakeCurrent(hDC, hRC))
{
MessageBox(NULL, "(5) Can't Activate The GL Rendering Context.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
UpdateWindow(GShwnd);
return true;
}
Renderer* Graphics::GetRenderer(Renderer_Desc& desc)
{
desc._hDC = GetDC(desc.hWnd);
PIXELFORMATDESCRIPTOR pfd;
memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DOUBLEBUFFER | PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.cDepthBits = 32;
pfd.iLayerType = PFD_MAIN_PLANE;
int nPixelFormat = ChoosePixelFormat(desc._hDC, &pfd);
if (nPixelFormat == 0) return false;
BOOL bResult = SetPixelFormat(desc._hDC, nPixelFormat, &pfd);
if (!bResult) return false;
HGLRC tempContext = wglCreateContext(desc._hDC);
wglMakeCurrent(desc._hDC, tempContext);
GLenum err = glewInit();
if (GLEW_OK != err)
{
//AfxMessageBox(_T("GLEW is not initialized!"));
return NULL;
}
//int attribs[] =
//{
// WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
// WGL_CONTEXT_MINOR_VERSION_ARB, 1,
// WGL_CONTEXT_FLAGS_ARB, 0,
// 0
//};
//if (wglewIsSupported("WGL_ARB_create_context") == 1)
//{
// desc._hrc = wglCreateContextAttribsARB(desc._hDC, 0, attribs);
// wglMakeCurrent(NULL, NULL);
// wglDeleteContext(tempContext);
// wglMakeCurrent(desc._hDC, desc._hrc);
//}
//else
//{ //It's not possible to make a GL 3.x context. Use the old style context (GL 2.1 and before)
desc._hrc = tempContext;
//}
//Checking GL version
const GLubyte *GLVersionString = glGetString(GL_VERSION);
//Or better yet, use the GL3 way to get the version number
int OpenGLVersion[2];
glGetIntegerv(GL_MAJOR_VERSION, &OpenGLVersion[0]);
glGetIntegerv(GL_MINOR_VERSION, &OpenGLVersion[1]);
if (!desc._hrc) return NULL;
Renderer* pRenderer = new Renderer(desc);
return pRenderer;
}
static int GLimp_InitGL( void )
{
PIXELFORMATDESCRIPTOR pfd =
{
sizeof( PIXELFORMATDESCRIPTOR ), // size of this pfd
1, // version number
PFD_DRAW_TO_WINDOW | // support window
PFD_SUPPORT_OPENGL | // support OpenGL
PFD_DOUBLEBUFFER, // double buffered
PFD_TYPE_RGBA, // RGBA type
32, // 32-bit color depth
0, 0, 0, 0, 0, 0, // color bits ignored
0, // no alpha buffer
0, // shift bit ignored
0, // no accumulation buffer
0, 0, 0, 0, // accum bits ignored
24, // 32-bit z-buffer
0, // no stencil buffer
0, // no auxiliary buffer
PFD_MAIN_PLANE, // main layer
0, // reserved
0, 0, 0 // layer masks ignored
};
int pixelformat;
if( r_stencilbits->integer == 8 || r_stencilbits->integer == 16 )
pfd.cStencilBits = r_stencilbits->integer;
/*
** set PFD_STEREO if necessary
*/
if( glConfig.stereoEnabled )
{
ri.Com_DPrintf( "...attempting to use stereo\n" );
pfd.dwFlags |= PFD_STEREO;
}
/*
** Get a DC for the specified window
*/
if( glw_state.hDC != NULL )
ri.Com_Printf( "GLimp_Init() - non-NULL DC exists\n" );
if( ( glw_state.hDC = GetDC( glw_state.hWnd ) ) == NULL )
{
ri.Com_Printf( "GLimp_Init() - GetDC failed\n" );
return false;
}
if( ( pixelformat = ChoosePixelFormat( glw_state.hDC, &pfd ) ) == 0 )
{
ri.Com_Printf( "GLimp_Init() - ChoosePixelFormat failed\n" );
return false;
}
if( SetPixelFormat( glw_state.hDC, pixelformat, &pfd ) == FALSE )
{
ri.Com_Printf( "GLimp_Init() - SetPixelFormat failed\n" );
return false;
}
DescribePixelFormat( glw_state.hDC, pixelformat, sizeof( pfd ), &pfd );
glConfig.stencilBits = pfd.cStencilBits;
/*
** report if stereo is desired but unavailable
*/
if( !( pfd.dwFlags & PFD_STEREO ) && glConfig.stereoEnabled )
{
ri.Com_Printf( "...failed to select stereo pixel format\n" );
glConfig.stereoEnabled = false;
}
/*
** startup the OpenGL subsystem by creating a context and making
** it current
*/
if( ( glw_state.hGLRC = qwglCreateContext( glw_state.hDC ) ) == 0 )
{
ri.Com_Printf( "GLimp_Init() - qwglCreateContext failed\n" );
goto fail;
}
if( !qwglMakeCurrent( glw_state.hDC, glw_state.hGLRC ) )
{
ri.Com_Printf( "GLimp_Init() - qwglMakeCurrent failed\n" );
goto fail;
}
/*
** print out PFD specifics
*/
ri.Com_Printf( "GL PFD: color(%d-bits) Z(%d-bit) stencil(%d-bits)\n", ( int ) pfd.cColorBits, ( int ) pfd.cDepthBits, ( int )pfd.cStencilBits );
return true;
fail:
if( glw_state.hGLRC )
{
qwglDeleteContext( glw_state.hGLRC );
glw_state.hGLRC = NULL;
}
if( glw_state.hDC )
{
ReleaseDC( glw_state.hWnd, glw_state.hDC );
glw_state.hDC = NULL;
}
return false;
}
bool GL_Init(HWND window, std::string *error_message) {
*error_message = "ok";
hWnd = window;
GLuint PixelFormat;
// TODO: Change to use WGL_ARB_pixel_format instead
static const PIXELFORMATDESCRIPTOR pfd = {
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
24, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
8, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
16, // At least a 16Bit Z-Buffer (Depth Buffer)
8, // 8-bit Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
hDC = GetDC(hWnd);
if (!hDC) {
*error_message = "Failed to get a device context.";
return false; // Return FALSE
}
if (!(PixelFormat = ChoosePixelFormat(hDC, &pfd))) {
*error_message = "Can't find a suitable PixelFormat.";
return false;
}
if (!SetPixelFormat(hDC, PixelFormat, &pfd)) {
*error_message = "Can't set the PixelFormat.";
return false;
}
if (!(hRC = wglCreateContext(hDC))) {
*error_message = "Can't create a GL rendering context.";
return false;
}
if (!wglMakeCurrent(hDC, hRC)) {
*error_message = "Can't activate the GL rendering context.";
return false;
}
// Check for really old OpenGL drivers and refuse to run really early in some cases.
// TODO: Also either tell the user to give up or point the user to the right websites. Here's some collected
// information about a system that will not work:
// GL_VERSION GL_VENDOR GL_RENDERER
// "1.4.0 - Build 8.14.10.2364" "intel" intel Pineview Platform
I18NCategory *err = GetI18NCategory("Error");
std::string glVersion = (const char *)glGetString(GL_VERSION);
std::string glRenderer = (const char *)glGetString(GL_RENDERER);
const std::string openGL_1 = "1.";
if (glRenderer == "GDI Generic" || glVersion.substr(0, openGL_1.size()) == openGL_1) {
//The error may come from 16-bit colour mode
//Check Colour depth
HDC dc = GetDC(NULL);
u32 colour_depth = GetDeviceCaps(dc, BITSPIXEL);
ReleaseDC(NULL, dc);
if (colour_depth != 32) {
MessageBox(0, L"Please switch your display to 32-bit colour mode", L"OpenGL Error", MB_OK);
ExitProcess(1);
}
const char *defaultError = "Insufficient OpenGL driver support detected!\n\n"
"Your GPU reports that it does not support OpenGL 2.0. Would you like to try using DirectX 9 instead?\n\n"
"DirectX is currently compatible with less games, but on your GPU it may be the only choice.\n\n"
"Visit the forums at http://forums.ppsspp.org for more information.\n\n";
std::wstring versionDetected = ConvertUTF8ToWString(glVersion + "\n\n");
std::wstring error = ConvertUTF8ToWString(err->T("InsufficientOpenGLDriver", defaultError));
std::wstring title = ConvertUTF8ToWString(err->T("OpenGLDriverError", "OpenGL driver error"));
std::wstring combined = versionDetected + error;
bool yes = IDYES == MessageBox(hWnd, combined.c_str(), title.c_str(), MB_ICONERROR | MB_YESNO);
if (yes) {
// Change the config to D3D and restart.
g_Config.iGPUBackend = GPU_BACKEND_DIRECT3D9;
g_Config.Save();
W32Util::ExitAndRestart();
}
// Avoid further error messages. Let's just bail, it's safe, and we can't continue.
ExitProcess(1);
}
if (GLEW_OK != glewInit()) {
*error_message = "Failed to initialize GLEW.";
return false;
}
CheckGLExtensions();
int contextFlags = g_Config.bGfxDebugOutput ? WGL_CONTEXT_DEBUG_BIT_ARB : 0;
// Alright, now for the modernity. First try a 4.4, then 4.3, context, if that fails try 3.3.
// I can't seem to find a way that lets you simply request the newest version available.
const int attribs44[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, 4,
WGL_CONTEXT_MINOR_VERSION_ARB, 4,
WGL_CONTEXT_FLAGS_ARB, contextFlags,
WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
0
};
const int attribs43[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, 4,
WGL_CONTEXT_MINOR_VERSION_ARB, 3,
WGL_CONTEXT_FLAGS_ARB, contextFlags,
WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
0
};
const int attribs33[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
WGL_CONTEXT_MINOR_VERSION_ARB, 3,
WGL_CONTEXT_FLAGS_ARB, contextFlags,
WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
0
};
HGLRC m_hrc;
if(wglewIsSupported("WGL_ARB_create_context") == 1) {
m_hrc = wglCreateContextAttribsARB(hDC, 0, attribs44);
if (!m_hrc)
m_hrc = wglCreateContextAttribsARB(hDC, 0, attribs43);
if (!m_hrc)
m_hrc = wglCreateContextAttribsARB(hDC, 0, attribs33);
if (!m_hrc) {
// Fall back
m_hrc = hRC;
} else {
// Switch to the new ARB context.
wglMakeCurrent(NULL, NULL);
wglDeleteContext(hRC);
wglMakeCurrent(hDC, m_hrc);
}
} else {
// We can't make a GL 3.x context. Use an old style context (GL 2.1 and before)
m_hrc = hRC;
}
if (GLEW_OK != glewInit()) {
*error_message = "Failed to re-initialize GLEW.";
return false;
}
if (!m_hrc) {
*error_message = "No m_hrc";
return false;
}
hRC = m_hrc;
GL_SwapInterval(0);
// TODO: Also support GL_KHR_debug which might be more widely supported?
if (g_Config.bGfxDebugOutput && glewIsSupported("GL_ARB_debug_output")) {
glGetError();
glDebugMessageCallbackARB((GLDEBUGPROCARB)&DebugCallbackARB, 0); // print debug output to stderr
if (glGetError()) {
ERROR_LOG(G3D, "Failed to register a debug log callback");
}
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
if (glGetError()) {
ERROR_LOG(G3D, "Failed to enable synchronous debug output");
}
// For extra verbosity uncomment this (MEDIUM and HIGH are on by default):
// glDebugMessageControlARB(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_LOW_ARB, 0, nullptr, GL_TRUE);
}
pauseRequested = false;
resumeRequested = false;
// These are auto-reset events.
pauseEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
resumeEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
return true; // Success
}
//*************************************************************************//
long Graphics::Initialize(HWND hWindow, unsigned long ulWidth, unsigned long ulHeight)
{
//-----------------------------------------------------------------------//
// Create a data member to hold the result of this method. In this method's
// case it will hold any error codes. By default set to 1 to signal no error.
long lResultCode = 1;
//-----------------------------------------------------------------------//
smhWindow = hWindow;
static PIXELFORMATDESCRIPTOR pfd= // pfd Tells Windows How We Want Things To Be
{
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
32, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
16, // 16Bit Z-Buffer (Depth Buffer)
0, // No Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
GLuint PixelFormat;
if(!(smhDeviceContext = GetDC(hWindow)))
{
lResultCode = -1;
smhDeviceContext = NULL;
}
if(lResultCode > 0 && !(PixelFormat = ChoosePixelFormat(smhDeviceContext, &pfd))) // Did Windows Find A Matching Pixel Format?
{
lResultCode = -1;
}
if(lResultCode > 0 && !SetPixelFormat(smhDeviceContext, PixelFormat, &pfd)) // Are We Able To Set The Pixel Format?
{
lResultCode = -1;
}
if(lResultCode > 0 && !(smhRenderingContext = wglCreateContext(smhDeviceContext))) // Are We Able To Get A Rendering Context?
{
lResultCode = -1;
}
if(lResultCode > 0 && !wglMakeCurrent(smhDeviceContext, smhRenderingContext)) // Try To Activate The Rendering Context
{
lResultCode = -1;
}
if(lResultCode > 0)
{
// Check Required Extensions
GLenum err = glewInit();
if(err == GLEW_OK)
{
glewGetString(GLEW_VERSION);
/// \TODO DO something with version.
if(GLEW_ARB_vertex_buffer_object)
{
glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background
glClearDepth(1.0f); // Depth Buffer Setup
glEnable(GL_DEPTH_TEST); // Enables Depth Testing
glEnable ( GL_LIGHTING ) ;
float global_ambient[] = { 0.5f, 0.5f, 0.5f, 1.0f };
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, global_ambient);
GLfloat specular[] = {1.0f, 1.0f, 1.0f , 1.0f};
glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
glShadeModel(GL_SMOOTH);
glDepthFunc(GL_LEQUAL); // The Type Of Depth Testing To Do
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Really Nice Perspective Calculations
glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
glEnable(GL_TEXTURE_2D);
glGetIntegerv(GL_MAX_ELEMENTS_VERTICES, reinterpret_cast<GLint*>(&(smuiMaxNumberOfVertexElements)));
glGetIntegerv(GL_MAX_ELEMENTS_INDICES, reinterpret_cast<GLint*>(&(smuiMaxNumberOfIndexElements)));
}
else
{
lResultCode = -1;
}
}
else
{
glewGetErrorString(err);
lResultCode = -1;
/// \TODO do something with error.
}
}
//-----------------------------------------------------------------------//
// Return result/error code
return lResultCode;
//-----------------------------------------------------------------------//
} // End of long Graphics::Initialize(HWND hWindow)
void TScene::Init(HDC hDC)
{
bool err=0;
LogText("Start create Scene");
fps_time = 0; fps_counter = 0; fps_show = 0; last_time = GetTickCount(); // расчет FPS
int m_GLPixelIndex;
PIXELFORMATDESCRIPTOR pfd;
ZeroMemory(&pfd, sizeof(pfd));
pfd.nSize = sizeof(pfd);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.cRedBits = 0;
pfd.cRedShift = 0;
pfd.cGreenBits = 0;
pfd.cGreenShift = 0;
pfd.cBlueBits = 0;
pfd.cBlueShift = 0;
pfd.cAlphaBits = 0;
pfd.cAlphaShift = 0;
pfd.cAccumBits = 0;
pfd.cAccumRedBits = 0;
pfd.cAccumGreenBits = 0;
pfd.cAccumBlueBits = 0;
pfd.cAccumAlphaBits = 0;
pfd.cDepthBits = 32;
pfd.cStencilBits = 0;
pfd.cAuxBuffers = 0;
pfd.iLayerType = PFD_MAIN_PLANE;
pfd.bReserved = 0;
pfd.dwLayerMask = 0;
pfd.dwVisibleMask = 0;
pfd.dwDamageMask = 0;
m_GLPixelIndex = ChoosePixelFormat( hDC, &pfd);
if(m_GLPixelIndex==0) // Let's choose a default index.
{
m_GLPixelIndex = 1;
if(DescribePixelFormat(hDC,m_GLPixelIndex,sizeof(PIXELFORMATDESCRIPTOR),&pfd)==0)
{
LogText("err: DescribePixelFormat");
err = 0;
}
}
if (SetPixelFormat( hDC, m_GLPixelIndex, &pfd)==FALSE)
{
LogText("err: SetPixelFormat");
err = 1;
}
hGLRC = wglCreateContext(hDC);
wglMakeCurrent(hDC, hGLRC);
if (err==0)
LogText("End sucsesful create Scene");
else
LogText("err: create Scene!");
SetDefaultOpenGL();
}
/**
* This function initializes a native window surface and caches the window
* bounds in the given OGLSDOps. Returns JNI_TRUE if the operation was
* successful; JNI_FALSE otherwise.
*/
jboolean
OGLSD_InitOGLWindow(JNIEnv *env, OGLSDOps *oglsdo)
{
PIXELFORMATDESCRIPTOR pfd;
WGLSDOps *wglsdo;
WGLGraphicsConfigInfo *wglInfo;
HWND window;
RECT wbounds;
HDC hdc;
J2dTraceLn(J2D_TRACE_INFO, "OGLSD_InitOGLWindow");
if (oglsdo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_InitOGLWindow: ops are null");
return JNI_FALSE;
}
wglsdo = (WGLSDOps *)oglsdo->privOps;
if (wglsdo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_InitOGLWindow: wgl ops are null");
return JNI_FALSE;
}
wglInfo = wglsdo->configInfo;
if (wglInfo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_InitOGLWindow: graphics config info is null");
return JNI_FALSE;
}
window = wglsdo->window;
if (!IsWindow(window)) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_InitOGLWindow: disposed component");
return JNI_FALSE;
}
GetWindowRect(window, &wbounds);
hdc = GetDC(window);
if (hdc == 0) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_InitOGLWindow: invalid hdc");
return JNI_FALSE;
}
if (!SetPixelFormat(hdc, wglInfo->pixfmt, &pfd)) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_InitOGLWindow: error setting pixel format");
ReleaseDC(window, hdc);
return JNI_FALSE;
}
ReleaseDC(window, hdc);
oglsdo->drawableType = OGLSD_WINDOW;
oglsdo->isOpaque = JNI_TRUE;
oglsdo->width = wbounds.right - wbounds.left;
oglsdo->height = wbounds.bottom - wbounds.top;
wglsdo->pbufferDC = 0;
J2dTraceLn2(J2D_TRACE_VERBOSE, " created window: w=%d h=%d",
oglsdo->width, oglsdo->height);
return JNI_TRUE;
}
bool CWGLManager::generateSurface()
{
HDC HDc = (HDC)CurrentContext.OpenGLWin32.HDc;
// search for pixel format the simple way
if (PixelFormat==0 || (!SetPixelFormat(HDc, PixelFormat, &pfd)))
{
for (u32 i=0; i<5; ++i)
{
if (i == 1)
{
if (Params.Stencilbuffer)
{
os::Printer::log("Cannot create a GL device with stencil buffer, disabling stencil shadows.", ELL_WARNING);
Params.Stencilbuffer = false;
pfd.cStencilBits = 0;
}
else
continue;
}
else
if (i == 2)
{
pfd.cDepthBits = 24;
}
if (i == 3)
{
if (Params.Bits!=16)
pfd.cDepthBits = 16;
else
continue;
}
else
if (i == 4)
{
os::Printer::log("Cannot create a GL device context", "No suitable format.", ELL_ERROR);
return false;
}
// choose pixelformat
PixelFormat = ChoosePixelFormat(HDc, &pfd);
if (PixelFormat)
break;
}
}
// set pixel format
if (!SetPixelFormat(HDc, PixelFormat, &pfd))
{
os::Printer::log("Cannot set the pixel format.", ELL_ERROR);
return false;
}
if (pfd.cAlphaBits != 0)
{
if (pfd.cRedBits == 8)
ColorFormat = ECF_A8R8G8B8;
else
ColorFormat = ECF_A1R5G5B5;
}
else
{
if (pfd.cRedBits == 8)
ColorFormat = ECF_R8G8B8;
else
ColorFormat = ECF_R5G6B5;
}
os::Printer::log("Pixel Format", core::stringc(PixelFormat).c_str(), ELL_DEBUG);
return true;
}
bool CWGLManager::initialize(const SIrrlichtCreationParameters& params, const SExposedVideoData& videodata)
{
// store params, videoData is set later as it would be overwritten else
Params=params;
// Create a window to test antialiasing support
const fschar_t* ClassName = __TEXT("CWGLManager");
HINSTANCE lhInstance = GetModuleHandle(0);
// Register Class
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = (WNDPROC)DefWindowProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = lhInstance;
wcex.hIcon = NULL;
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = 0;
wcex.lpszClassName = ClassName;
wcex.hIconSm = 0;
wcex.hIcon = 0;
RegisterClassEx(&wcex);
RECT clientSize;
clientSize.top = 0;
clientSize.left = 0;
clientSize.right = Params.WindowSize.Width;
clientSize.bottom = Params.WindowSize.Height;
DWORD style = WS_POPUP;
if (!Params.Fullscreen)
style = WS_SYSMENU | WS_BORDER | WS_CAPTION | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
AdjustWindowRect(&clientSize, style, FALSE);
const s32 realWidth = clientSize.right - clientSize.left;
const s32 realHeight = clientSize.bottom - clientSize.top;
const s32 windowLeft = (GetSystemMetrics(SM_CXSCREEN) - realWidth) / 2;
const s32 windowTop = (GetSystemMetrics(SM_CYSCREEN) - realHeight) / 2;
HWND temporary_wnd=CreateWindow(ClassName, __TEXT(""), style, windowLeft,
windowTop, realWidth, realHeight, NULL, NULL, lhInstance, NULL);
if (!temporary_wnd)
{
os::Printer::log("Cannot create a temporary window.", ELL_ERROR);
UnregisterClass(ClassName, lhInstance);
return false;
}
HDC HDc = GetDC(temporary_wnd);
// Set up pixel format descriptor with desired parameters
PIXELFORMATDESCRIPTOR tmp_pfd = {
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
(Params.Doublebuffer?PFD_DOUBLEBUFFER:0) | // Must Support Double Buffering
(Params.Stereobuffer?PFD_STEREO:0), // Must Support Stereo Buffer
PFD_TYPE_RGBA, // Request An RGBA Format
Params.Bits, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
Params.ZBufferBits, // Z-Buffer (Depth Buffer)
BYTE(Params.Stencilbuffer ? 1 : 0), // Stencil Buffer Depth
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
pfd=tmp_pfd;
for (u32 i=0; i<6; ++i)
{
if (i == 1)
{
if (Params.Stencilbuffer)
{
os::Printer::log("Cannot create a GL device with stencil buffer, disabling stencil shadows.", ELL_WARNING);
Params.Stencilbuffer = false;
pfd.cStencilBits = 0;
}
else
continue;
}
else
if (i == 2)
{
pfd.cDepthBits = 24;
}
else
if (i == 3)
{
if (Params.Bits!=16)
pfd.cDepthBits = 16;
else
continue;
}
else
if (i == 4)
{
// try single buffer
if (Params.Doublebuffer)
pfd.dwFlags &= ~PFD_DOUBLEBUFFER;
else
continue;
}
else
if (i == 5)
{
os::Printer::log("Cannot create a GL device context", "No suitable format for temporary window.", ELL_ERROR);
ReleaseDC(temporary_wnd, HDc);
DestroyWindow(temporary_wnd);
UnregisterClass(ClassName, lhInstance);
return false;
}
// choose pixelformat
PixelFormat = ChoosePixelFormat(HDc, &pfd);
if (PixelFormat)
break;
}
SetPixelFormat(HDc, PixelFormat, &pfd);
os::Printer::log("Temporary context");
HGLRC hrc=wglCreateContext(HDc);
if (!hrc)
{
os::Printer::log("Cannot create a temporary GL rendering context.", ELL_ERROR);
ReleaseDC(temporary_wnd, HDc);
DestroyWindow(temporary_wnd);
UnregisterClass(ClassName, lhInstance);
return false;
}
CurrentContext.OpenGLWin32.HDc = HDc;
CurrentContext.OpenGLWin32.HRc = hrc;
CurrentContext.OpenGLWin32.HWnd = temporary_wnd;
if (!activateContext(CurrentContext))
{
os::Printer::log("Cannot activate a temporary GL rendering context.", ELL_ERROR);
wglDeleteContext(hrc);
ReleaseDC(temporary_wnd, HDc);
DestroyWindow(temporary_wnd);
UnregisterClass(ClassName, lhInstance);
return false;
}
core::stringc wglExtensions;
#ifdef WGL_ARB_extensions_string
PFNWGLGETEXTENSIONSSTRINGARBPROC irrGetExtensionsString = (PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB");
if (irrGetExtensionsString)
wglExtensions = irrGetExtensionsString(HDc);
#elif defined(WGL_EXT_extensions_string)
PFNWGLGETEXTENSIONSSTRINGEXTPROC irrGetExtensionsString = (PFNWGLGETEXTENSIONSSTRINGEXTPROC)wglGetProcAddress("wglGetExtensionsStringEXT");
if (irrGetExtensionsString)
wglExtensions = irrGetExtensionsString(HDc);
#endif
const bool pixel_format_supported = (wglExtensions.find("WGL_ARB_pixel_format") != -1);
const bool multi_sample_supported = ((wglExtensions.find("WGL_ARB_multisample") != -1) ||
(wglExtensions.find("WGL_EXT_multisample") != -1) || (wglExtensions.find("WGL_3DFX_multisample") != -1) );
#ifdef _DEBUG
os::Printer::log("WGL_extensions", wglExtensions);
#endif
#ifdef WGL_ARB_pixel_format
PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormat_ARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
if (pixel_format_supported && wglChoosePixelFormat_ARB)
{
// This value determines the number of samples used for antialiasing
// My experience is that 8 does not show a big
// improvement over 4, but 4 shows a big improvement
// over 2.
if (Params.AntiAlias > 32)
Params.AntiAlias = 32;
f32 fAttributes[] = {0.0, 0.0};
s32 iAttributes[] =
{
WGL_DRAW_TO_WINDOW_ARB,1,
WGL_SUPPORT_OPENGL_ARB,1,
WGL_ACCELERATION_ARB,WGL_FULL_ACCELERATION_ARB,
WGL_COLOR_BITS_ARB,(Params.Bits==32) ? 24 : 15,
WGL_ALPHA_BITS_ARB,(Params.Bits==32) ? 8 : 1,
WGL_DEPTH_BITS_ARB,Params.ZBufferBits, // 10,11
WGL_STENCIL_BITS_ARB,Params.Stencilbuffer ? 1 : 0,
WGL_DOUBLE_BUFFER_ARB,Params.Doublebuffer ? 1 : 0,
WGL_STEREO_ARB,Params.Stereobuffer ? 1 : 0,
WGL_PIXEL_TYPE_ARB, WGL_TYPE_RGBA_ARB,
#ifdef WGL_ARB_multisample
WGL_SAMPLES_ARB,Params.AntiAlias, // 20,21
WGL_SAMPLE_BUFFERS_ARB, 1,
#elif defined(WGL_EXT_multisample)
WGL_SAMPLES_EXT,AntiAlias, // 20,21
WGL_SAMPLE_BUFFERS_EXT, 1,
#elif defined(WGL_3DFX_multisample)
WGL_SAMPLES_3DFX,AntiAlias, // 20,21
WGL_SAMPLE_BUFFERS_3DFX, 1,
#endif
#ifdef WGL_ARB_framebuffer_sRGB
WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB, Params.HandleSRGB ? 1:0,
#elif defined(WGL_EXT_framebuffer_sRGB)
WGL_FRAMEBUFFER_SRGB_CAPABLE_EXT, Params.HandleSRGB ? 1:0,
#endif
// WGL_DEPTH_FLOAT_EXT, 1,
0,0,0,0
};
int iAttrSize = sizeof(iAttributes)/sizeof(int);
const bool framebuffer_srgb_supported = ((wglExtensions.find("WGL_ARB_framebuffer_sRGB") != -1) ||
(wglExtensions.find("WGL_EXT_framebuffer_sRGB") != -1));
if (!framebuffer_srgb_supported)
{
memmove(&iAttributes[24],&iAttributes[26],sizeof(int)*(iAttrSize-26));
iAttrSize -= 2;
}
if (!multi_sample_supported)
{
memmove(&iAttributes[20],&iAttributes[24],sizeof(int)*(iAttrSize-24));
iAttrSize -= 4;
}
s32 rv=0;
// Try to get an acceptable pixel format
do
{
int pixelFormat=0;
UINT numFormats=0;
const BOOL valid = wglChoosePixelFormat_ARB(HDc,iAttributes,fAttributes,1,&pixelFormat,&numFormats);
if (valid && numFormats)
rv = pixelFormat;
else
iAttributes[21] -= 1;
}
while(rv==0 && iAttributes[21]>1);
if (rv)
{
PixelFormat=rv;
Params.AntiAlias=iAttributes[21];
}
}
else
#endif
Params.AntiAlias=0;
// this only terminates the temporary HRc
destroyContext();
destroySurface();
terminate();
DestroyWindow(temporary_wnd);
UnregisterClass(ClassName, lhInstance);
// now get new window
CurrentContext.OpenGLWin32.HWnd=videodata.OpenGLWin32.HWnd;
// get hdc
if (!(CurrentContext.OpenGLWin32.HDc=GetDC((HWND)videodata.OpenGLWin32.HWnd)))
{
os::Printer::log("Cannot create a GL device context.", ELL_ERROR);
return false;
}
if (!PrimaryContext.OpenGLWin32.HWnd)
{
PrimaryContext.OpenGLWin32.HWnd=CurrentContext.OpenGLWin32.HWnd;
PrimaryContext.OpenGLWin32.HDc=CurrentContext.OpenGLWin32.HDc;
}
return true;
}
void OpenGLRenderer::Initialize()
{
// Initialize Internal Window
PIXELFORMATDESCRIPTOR pfd;
RECT rect = { 0, 0, 10, 10 };
WNDCLASSEX wcex;
wcex.cbSize = sizeof ( WNDCLASSEX );
wcex.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wcex.lpfnWndProc = ( WNDPROC ) DefWindowProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = GetModuleHandle ( nullptr );
wcex.hIcon = LoadIcon ( nullptr, IDI_WINLOGO );
wcex.hCursor = LoadCursor ( nullptr, IDC_ARROW );
wcex.hbrBackground = nullptr;
wcex.lpszMenuName = nullptr;
wcex.lpszClassName = "glUnitTest";
wcex.hIconSm = nullptr;
ATOM atom = RegisterClassEx ( &wcex );
mWindowId = CreateWindowEx ( WS_EX_APPWINDOW | WS_EX_WINDOWEDGE,
MAKEINTATOM ( atom ), "OpenGL Unit Testing Window",
WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
0, 0, // Location
rect.right - rect.left, rect.bottom - rect.top, // dimensions
nullptr,
nullptr,
GetModuleHandle ( nullptr ),
nullptr );
HDC hdc = GetDC ( static_cast<HWND> ( mWindowId ) );
pfd.nSize = sizeof ( PIXELFORMATDESCRIPTOR );
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.cRedBits = 0;
pfd.cRedShift = 0;
pfd.cGreenBits = 0;
pfd.cGreenShift = 0;
pfd.cBlueBits = 0;
pfd.cBlueShift = 0;
pfd.cAlphaBits = 0;
pfd.cAlphaShift = 0;
pfd.cAccumBits = 0;
pfd.cAccumRedBits = 0;
pfd.cAccumGreenBits = 0;
pfd.cAccumBlueBits = 0;
pfd.cAccumAlphaBits = 0;
pfd.cDepthBits = 32;
pfd.cStencilBits = 0;
pfd.cAuxBuffers = 0;
pfd.iLayerType = PFD_MAIN_PLANE;
pfd.bReserved = 0;
pfd.dwLayerMask = 0;
pfd.dwVisibleMask = 0;
pfd.dwDamageMask = 0;
int pf = ChoosePixelFormat ( hdc, &pfd );
SetPixelFormat ( hdc, pf, &pfd );
// Create OpenGL Context
mOpenGLContext = wglCreateContext ( hdc );
wglMakeCurrent ( hdc, static_cast<HGLRC> ( mOpenGLContext ) );
// Get newer functions if needed
if ( !wglGetExtensionsString )
{
if ( ! ( wglGetExtensionsString = ( PFNWGLGETEXTENSIONSSTRINGARBPROC ) wglGetProcAddress ( "wglGetExtensionsStringARB" ) ) )
{
wglMakeCurrent ( hdc, nullptr );
wglDeleteContext ( static_cast<HGLRC> ( mOpenGLContext ) );
mOpenGLContext = nullptr;
ReleaseDC ( static_cast<HWND> ( mWindowId ), hdc );
DestroyWindow ( static_cast<HWND> ( mWindowId ) );
throw std::runtime_error ( "Failed retrieving a pointer to wglGetExtensionsString" );
}
}
if ( !wglCreateContextAttribs )
{
if ( ! ( wglCreateContextAttribs = ( PFNWGLCREATECONTEXTATTRIBSARBPROC ) wglGetProcAddress ( "wglCreateContextAttribsARB" ) ) )
{
wglMakeCurrent ( hdc, nullptr );
wglDeleteContext ( static_cast<HGLRC> ( mOpenGLContext ) );
mOpenGLContext = nullptr;
ReleaseDC ( static_cast<HWND> ( mWindowId ), hdc );
DestroyWindow ( static_cast<HWND> ( mWindowId ) );
throw std::runtime_error ( "Failed retrieving a pointer to wglCreateContextAttribsARB" );
}
}
if ( strstr ( wglGetExtensionsString ( hdc ), "WGL_ARB_create_context" ) != nullptr )
{
wglMakeCurrent ( hdc, nullptr );
wglDeleteContext ( static_cast<HGLRC> ( mOpenGLContext ) );
if ( ! ( mOpenGLContext = wglCreateContextAttribs ( hdc, nullptr /* change to use local context */, ContextAttribs ) ) )
{
ReleaseDC ( static_cast<HWND> ( mWindowId ), hdc );
DestroyWindow ( static_cast<HWND> ( mWindowId ) );
throw std::runtime_error ( "wglCreateContextAttribs Failed" );
}
}
else
{
wglMakeCurrent ( hdc, nullptr );
wglDeleteContext ( static_cast<HGLRC> ( mOpenGLContext ) );
mOpenGLContext = nullptr;
ReleaseDC ( static_cast<HWND> ( mWindowId ), hdc );
DestroyWindow ( static_cast<HWND> ( mWindowId ) );
throw std::runtime_error ( "WGL_ARB_create_context is not available" );
}
// Get New OpenGL API
if ( !wglMakeCurrent ( hdc, reinterpret_cast<HGLRC> ( mOpenGLContext ) ) )
{
std::cout << "wglMakeCurrent Failed. Error: " << GetLastError() << std::endl;
}
if ( !LoadOpenGLAPI() )
{
std::cout << "Unable to Load OpenGL functions." << std::endl;
}
glClearColor ( 0.5f, 0.5f, 0.5f, 0.0f );
OPENGL_CHECK_ERROR_NO_THROW;
glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
OPENGL_CHECK_ERROR_NO_THROW;
glEnable ( GL_BLEND );
OPENGL_CHECK_ERROR_NO_THROW;
glDepthFunc ( GL_LESS );
OPENGL_CHECK_ERROR_NO_THROW;
glEnable ( GL_DEPTH_TEST );
OPENGL_CHECK_ERROR_NO_THROW;
glCullFace ( GL_BACK );
OPENGL_CHECK_ERROR_NO_THROW;
glEnable ( GL_CULL_FACE );
OPENGL_CHECK_ERROR_NO_THROW;
glClear ( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
OPENGL_CHECK_ERROR_NO_THROW;
}
void GlContext::create(uint32_t /*_width*/, uint32_t /*_height*/)
{
m_opengl32dll = bx::dlopen("opengl32.dll");
BGFX_FATAL(NULL != m_opengl32dll, Fatal::UnableToInitialize, "Failed to load opengl32.dll.");
wglGetProcAddress = (PFNWGLGETPROCADDRESSPROC)bx::dlsym(m_opengl32dll, "wglGetProcAddress");
BGFX_FATAL(NULL != wglGetProcAddress, Fatal::UnableToInitialize, "Failed get wglGetProcAddress.");
// If g_bgfxHwnd is NULL, the assumption is that GL context was created
// by user (for example, using SDL, GLFW, etc.)
BX_WARN(NULL != g_bgfxHwnd
, "bgfx::winSetHwnd with valid window is not called. This might "
"be intentional when GL context is created by the user."
);
if (NULL != g_bgfxHwnd)
{
wglMakeCurrent = (PFNWGLMAKECURRENTPROC)bx::dlsym(m_opengl32dll, "wglMakeCurrent");
BGFX_FATAL(NULL != wglMakeCurrent, Fatal::UnableToInitialize, "Failed get wglMakeCurrent.");
wglCreateContext = (PFNWGLCREATECONTEXTPROC)bx::dlsym(m_opengl32dll, "wglCreateContext");
BGFX_FATAL(NULL != wglCreateContext, Fatal::UnableToInitialize, "Failed get wglCreateContext.");
wglDeleteContext = (PFNWGLDELETECONTEXTPROC)bx::dlsym(m_opengl32dll, "wglDeleteContext");
BGFX_FATAL(NULL != wglDeleteContext, Fatal::UnableToInitialize, "Failed get wglDeleteContext.");
m_hdc = GetDC(g_bgfxHwnd);
BGFX_FATAL(NULL != m_hdc, Fatal::UnableToInitialize, "GetDC failed!");
// Dummy window to peek into WGL functionality.
//
// An application can only set the pixel format of a window one time.
// Once a window's pixel format is set, it cannot be changed.
// MSDN: http://msdn.microsoft.com/en-us/library/windows/desktop/dd369049%28v=vs.85%29.aspx
HWND hwnd = CreateWindowA("STATIC"
, ""
, WS_POPUP|WS_DISABLED
, -32000
, -32000
, 0
, 0
, NULL
, NULL
, GetModuleHandle(NULL)
, 0
);
HDC hdc = GetDC(hwnd);
BGFX_FATAL(NULL != hdc, Fatal::UnableToInitialize, "GetDC failed!");
HGLRC context = createContext(hdc);
wglGetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB");
wglChoosePixelFormatARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
wglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)wglGetProcAddress("wglSwapIntervalEXT");
if (NULL != wglGetExtensionsStringARB)
{
const char* extensions = (const char*)wglGetExtensionsStringARB(hdc);
BX_TRACE("WGL extensions:");
dumpExtensions(extensions);
}
if (NULL != wglChoosePixelFormatARB
&& NULL != wglCreateContextAttribsARB)
{
int32_t attrs[] =
{
WGL_SAMPLE_BUFFERS_ARB, 0,
WGL_SAMPLES_ARB, 0,
WGL_SUPPORT_OPENGL_ARB, true,
WGL_PIXEL_TYPE_ARB, WGL_TYPE_RGBA_ARB,
WGL_DRAW_TO_WINDOW_ARB, true,
WGL_DOUBLE_BUFFER_ARB, true,
WGL_COLOR_BITS_ARB, 32,
WGL_DEPTH_BITS_ARB, 24,
WGL_STENCIL_BITS_ARB, 8,
0
};
int result;
uint32_t numFormats = 0;
do
{
result = wglChoosePixelFormatARB(m_hdc, attrs, NULL, 1, &m_pixelFormat, &numFormats);
if (0 == result
|| 0 == numFormats)
{
attrs[3] >>= 1;
attrs[1] = attrs[3] == 0 ? 0 : 1;
}
} while (0 == numFormats);
DescribePixelFormat(m_hdc, m_pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &m_pfd);
BX_TRACE("Pixel format:\n"
"\tiPixelType %d\n"
"\tcColorBits %d\n"
"\tcAlphaBits %d\n"
"\tcDepthBits %d\n"
"\tcStencilBits %d\n"
, m_pfd.iPixelType
, m_pfd.cColorBits
, m_pfd.cAlphaBits
, m_pfd.cDepthBits
, m_pfd.cStencilBits
);
result = SetPixelFormat(m_hdc, m_pixelFormat, &m_pfd);
// When window is created by SDL and SDL_WINDOW_OPENGL is set SetPixelFormat
// will fail. Just warn and continue. In case it failed for some other reason
// create context will fail and it will error out there.
BX_WARN(result, "SetPixelFormat failed (last err: 0x%08x)!", GetLastError() );
uint32_t flags = BGFX_CONFIG_DEBUG ? WGL_CONTEXT_DEBUG_BIT_ARB : 0;
BX_UNUSED(flags);
int32_t contextAttrs[9] =
{
#if BGFX_CONFIG_RENDERER_OPENGL >= 31
WGL_CONTEXT_MAJOR_VERSION_ARB, BGFX_CONFIG_RENDERER_OPENGL / 10,
WGL_CONTEXT_MINOR_VERSION_ARB, BGFX_CONFIG_RENDERER_OPENGL % 10,
WGL_CONTEXT_FLAGS_ARB, flags,
WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
#else
WGL_CONTEXT_MAJOR_VERSION_ARB, 2,
WGL_CONTEXT_MINOR_VERSION_ARB, 1,
0, 0,
0, 0,
#endif // BGFX_CONFIG_RENDERER_OPENGL >= 31
0
};
m_context = wglCreateContextAttribsARB(m_hdc, 0, contextAttrs);
if (NULL == m_context)
{
// nVidia doesn't like context profile mask for contexts below 3.2?
contextAttrs[6] = WGL_CONTEXT_PROFILE_MASK_ARB == contextAttrs[6] ? 0 : contextAttrs[6];
m_context = wglCreateContextAttribsARB(m_hdc, 0, contextAttrs);
}
BGFX_FATAL(NULL != m_context, Fatal::UnableToInitialize, "Failed to create context 0x%08x.", GetLastError() );
BX_STATIC_ASSERT(sizeof(contextAttrs) == sizeof(m_contextAttrs) );
memcpy(m_contextAttrs, contextAttrs, sizeof(contextAttrs) );
}
LRESULT CALLBACK WndProc(
HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam)
{
RECT Screen; // используется позднее для размеров окна
GLuint PixelFormat;
static PIXELFORMATDESCRIPTOR pfd=
{
sizeof(PIXELFORMATDESCRIPTOR), // Размер этой структуры
1, // Номер версии (?)
PFD_DRAW_TO_WINDOW |// Формат для Окна
PFD_SUPPORT_OPENGL |// Формат для OpenGL
PFD_DOUBLEBUFFER,// Формат для двойного буфера
PFD_TYPE_RGBA, // Требуется RGBA формат
16, // Выбор 16 бит глубины цвета
0, 0, 0, 0, 0, 0,// Игнорирование цветовых битов (?)
0, // нет буфера прозрачности
0, // Сдвиговый бит игнорируется (?)
0, // Нет буфера аккумуляции
0, 0, 0, 0, // Биты аккумуляции игнорируются (?)
16, // 16 битный Z-буфер (буфер глубины)
0, // Нет буфера траффарета
0, // Нет вспомогательных буферов (?)
PFD_MAIN_PLANE, // Главный слой рисования
0, // Резерв (?)
0, 0, 0 // Маски слоя игнорируются (?)
};
switch (message) // Тип сообщения
{
case WM_CREATE:
hDC = GetDC(hWnd); // Получить контекст устройства для окна
PixelFormat = ChoosePixelFormat(hDC, &pfd);
// Найти ближайшее совпадение для нашего формата пикселов
if (!PixelFormat)
{
MessageBox(0,"Can't Find A Suitable PixelFormat.","Error",MB_OK|MB_ICONERROR);
PostQuitMessage(0);
// Это сообщение говорит, что программа должна завершится
break; // Предтовращение повтора кода
}
if(!SetPixelFormat(hDC,PixelFormat,&pfd))
{
MessageBox(0,"Can't Set The PixelFormat.","Error",MB_OK|MB_ICONERROR);
PostQuitMessage(0);
break;
}
hRC = wglCreateContext(hDC);
if(!hRC)
{
MessageBox(0,"Can't Create A GL Rendering Context.","Error",MB_OK|MB_ICONERROR);
PostQuitMessage(0);
break;
}
if(!wglMakeCurrent(hDC, hRC))
{
MessageBox(0,"Can't activate GLRC.","Error",MB_OK|MB_ICONERROR);
PostQuitMessage(0);
break;
}
GetClientRect(hWnd, &Screen);
InitGL(Screen.right, Screen.bottom);
break;
case WM_DESTROY:
case WM_CLOSE:
ChangeDisplaySettings(NULL, 0);
wglMakeCurrent(hDC,NULL);
wglDeleteContext(hRC);
ReleaseDC(hWnd,hDC);
PostQuitMessage(0);
break;
case WM_KEYDOWN:
keys[wParam] = TRUE;
break;
case WM_KEYUP:
keys[wParam] = FALSE;
break;
case WM_SIZE:
ReSizeGLScene(LOWORD(lParam),HIWORD(lParam));
break;
default:
return (DefWindowProc(hWnd, message, wParam, lParam));
}
return (0);
}
static bool select_pixel_format(ALLEGRO_DISPLAY_WGL *d, HDC dc)
{
ALLEGRO_EXTRA_DISPLAY_SETTINGS **eds = NULL;
ALLEGRO_SYSTEM *system = (void *)al_get_system_driver();
int eds_count = 0;
int i;
bool force_old = false;
if (system->config) {
const char *selection_mode;
selection_mode = al_get_config_value(system->config, "graphics",
"config_selection");
if (selection_mode && selection_mode[0] != '\0') {
if (!_al_stricmp(selection_mode, "old")) {
ALLEGRO_INFO("Forcing OLD visual selection method.\n");
force_old = true;
}
else if (!_al_stricmp(selection_mode, "new"))
force_old = false;
}
}
if (!force_old)
eds = get_available_pixel_formats_ext(&eds_count);
if (!eds)
eds = get_available_pixel_formats_old(&eds_count, dc);
if (!eds || !eds_count) {
ALLEGRO_ERROR("Didn't find any suitable pixel format!\n");
return false;
}
qsort(eds, eds_count, sizeof(eds[0]), _al_display_settings_sorter);
for (i = 0; i < eds_count ; i++) {
if (SetPixelFormat(d->dc, eds[i]->index, NULL)) {
ALLEGRO_INFO("Chose visual no. %i\n\n", eds[i]->index);
display_pixel_format(eds[i]);
break;
}
else {
ALLEGRO_WARN("Unable to set pixel format! %s\n",
get_error_desc(GetLastError()));
ALLEGRO_WARN("Trying next one.\n");
}
}
if (i == eds_count) {
ALLEGRO_ERROR("Unable to set any pixel format! %s\n",
get_error_desc(GetLastError()));
for (i = 0; i < eds_count; i++)
al_free(eds[i]);
al_free(eds);
return false;
}
memcpy(&d->win_display.display.extra_settings, eds[i], sizeof(ALLEGRO_EXTRA_DISPLAY_SETTINGS));
for (i = 0; i < eds_count; i++)
al_free(eds[i]);
if (eds)
al_free(eds);
return true;
}
bool CreateGLWindow(char* title, int width, int height)
{
GLuint PixelFormat; // Holds The Results After Searching For A Match
WNDCLASS wc; // Windows Class Structure
DWORD dwExStyle; // Window Extended Style
DWORD dwStyle; // Window Style
RECT WindowRect; // Grabs Rectangle Upper Left / Lower Right Values
WindowRect.left=(long)0; // Set Left Value To 0
WindowRect.right=(long)width; // Set Right Value To Requested Width
WindowRect.top=(long)0; // Set Top Value To 0
WindowRect.bottom=(long)height; // Set Bottom Value To Requested Height
hInstance = GetModuleHandle(NULL); // Grab An Instance For Our Window
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // Redraw On Size, And Own DC For Window.
wc.lpfnWndProc = (WNDPROC) WndProc; // WndProc Handles Messages
wc.cbClsExtra = 0; // No Extra Window Data
wc.cbWndExtra = 0; // No Extra Window Data
wc.hInstance = hInstance; // Set The Instance
wc.hIcon = LoadIcon(NULL, IDI_WINLOGO); // Load The Default Icon
wc.hCursor = LoadCursor(NULL, IDC_ARROW); // Load The Arrow Pointer
wc.hbrBackground = NULL; // No Background Required For GL
wc.lpszMenuName = NULL; // We Don't Want A Menu
wc.lpszClassName = "OpenGL"; // Set The Class Name
if (!RegisterClass(&wc)) // Attempt To Register The Window Class
{
MessageBox(NULL,"Failed To Register The Window Class.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return false; // Return FALSE
}
dwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE; // Window Extended Style
dwStyle=WS_OVERLAPPEDWINDOW; // Windows Style
AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle); // Adjust Window To True Requested Size
// Create The Window
if (!(hWnd=CreateWindowEx( dwExStyle, // Extended Style For The Window
"OpenGL", // Class Name
title, // Window Title
dwStyle | // Defined Window Style
WS_CLIPSIBLINGS | // Required Window Style
WS_CLIPCHILDREN, // Required Window Style
900, 0, // Window Position
WindowRect.right-WindowRect.left, // Calculate Window Width
WindowRect.bottom-WindowRect.top, // Calculate Window Height
NULL, // No Parent Window
NULL, // No Menu
hInstance, // Instance
NULL))) // Dont Pass Anything To WM_CREATE
{
KillGLWindow(); // Reset The Display
MessageBox(NULL,"Window Creation Error.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return false; // Return FALSE
}
static PIXELFORMATDESCRIPTOR pfd= // pfd Tells Windows How We Want Things To Be
{
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
24, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
24, // 24Bit Z-Buffer (Depth Buffer)
0, // No Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
if (!(hDC=GetDC(hWnd))) // Did We Get A Device Context?
{
KillGLWindow(); // Reset The Display
MessageBox(NULL,"Can't Create A GL Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return false; // Return FALSE
}
if (!(PixelFormat=ChoosePixelFormat(hDC,&pfd))) // Did Windows Find A Matching Pixel Format?
{
KillGLWindow(); // Reset The Display
MessageBox(NULL,"Can't Find A Suitable PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return false; // Return FALSE
}
if(!SetPixelFormat(hDC,PixelFormat,&pfd)) // Are We Able To Set The Pixel Format?
{
KillGLWindow(); // Reset The Display
MessageBox(NULL,"Can't Set The PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return false; // Return FALSE
}
if (!(hRC=wglCreateContext(hDC))) // Are We Able To Get A Rendering Context?
{
KillGLWindow(); // Reset The Display
MessageBox(NULL,"Can't Create A GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return false; // Return FALSE
}
if(!wglMakeCurrent(hDC,hRC)) // Try To Activate The Rendering Context
{
KillGLWindow(); // Reset The Display
MessageBox(NULL,"Can't Activate The GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return false; // Return FALSE
}
ShowWindow(hWnd,SW_SHOW); // Show The Window
SetForegroundWindow(hWnd); // Slightly Higher Priority
SetFocus(hWnd); // Sets Keyboard Focus To The Window
reshape(width, height); // Set Up Our Perspective GL Screen
init();
return true; // Success
}
void InitWindow(HINSTANCE hInstance)
{
// TODO: make it search all available configs and ask what to load from or something
if(!cfg.LoadFromFile("default.cfg")) LogToFile("debug.log", "Failed to load config");
window_rect.left = 0;
window_rect.right = cfg.scr_width;
window_rect.top = 0;
window_rect.bottom = cfg.scr_height;
window_class.hInstance = hInstance;
window_class.style = CS_VREDRAW | CS_HREDRAW | CS_OWNDC;
window_class.lpfnWndProc = WndProc;
window_class.cbClsExtra = 0;
window_class.cbWndExtra = 0;
window_class.hbrBackground = NULL;
window_class.hIcon = LoadIcon(NULL, IDI_WINLOGO);
window_class.hCursor = LoadCursor(NULL, IDC_ARROW);
window_class.lpszMenuName = NULL;
window_class.lpszClassName = "OpenOrionClass";
fullscreenflag = cfg.fullscreen;
if(!RegisterClass(&window_class))
{
MessageBox(NULL, "Failed to register window class", "RegisterClass() Error", MB_OK | MB_ICONEXCLAMATION);
LogToFile("debug.log", "Failed to register window class");
PostQuitMessage(-1);
}
if(cfg.fullscreen)
{
memset(&dmScreenSettings, 0, sizeof(dmScreenSettings)); // Очистка для хранения установок
dmScreenSettings.dmSize = sizeof(dmScreenSettings); // Размер структуры Devmode
dmScreenSettings.dmPelsWidth = cfg.scr_width; // Ширина экрана
dmScreenSettings.dmPelsHeight = cfg.scr_height; // Высота экрана
dmScreenSettings.dmBitsPerPel = cfg.scr_bpp; // Глубина цвета
dmScreenSettings.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT; // Режим Пикселя
DWORD disp;
disp = ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN);
switch(disp)
{
case DISP_CHANGE_SUCCESSFUL:
{
fullscreenflag = true;
ShowCursor(true);
break;
}
case DISP_CHANGE_BADDUALVIEW:
{
fullscreenflag = false;
ShowCursor(true);
LogToFile("Failed to set fullscreen mode: error (DISP_CHANGE_BADDUALVIEW)");
MessageBox(NULL, "Failed to set fullscreen mode", "DISP_CHANGE_BADDUALVIEW", MB_OK | MB_ICONEXCLAMATION);
break;
}
case DISP_CHANGE_BADFLAGS:
{
fullscreenflag = false;
ShowCursor(true);
LogToFile("Failed to set fullscreen mode: error (DISP_CHANGE_BADFLAGS)");
MessageBox(NULL, "Failed to set fullscreen mode", "DISP_CHANGE_BADFLAGS", MB_OK | MB_ICONEXCLAMATION);
break;
}
case DISP_CHANGE_BADMODE:
{
fullscreenflag = false;
ShowCursor(true);
LogToFile("Failed to set fullscreen mode: error (DISP_CHANGE_BADMODE)");
MessageBox(NULL, "Failed to set fullscreen mode", "DISP_CHANGE_BADMODE", MB_OK | MB_ICONEXCLAMATION);
break;
}
case DISP_CHANGE_BADPARAM:
{
fullscreenflag = false;
ShowCursor(true);
LogToFile("Failed to set fullscreen mode: error (DISP_CHANGE_BADPARAM)");
MessageBox(NULL, "Failed to set fullscreen mode", "DISP_CHANGE_BADPARAM", MB_OK | MB_ICONEXCLAMATION);
break;
}
case DISP_CHANGE_FAILED:
{
fullscreenflag = false;
ShowCursor(true);
LogToFile("Failed to set fullscreen mode: error (DISP_CHANGE_FAILED)");
MessageBox(NULL, "Failed to set fullscreen mode", "DISP_CHANGE_FAILED", MB_OK | MB_ICONEXCLAMATION);
break;
}
case DISP_CHANGE_NOTUPDATED:
{
fullscreenflag = false;
ShowCursor(true);
LogToFile("Failed to set fullscreen mode: error (DISP_CHANGE_NOTUPDATED)");
MessageBox(NULL, "Failed to set fullscreen mode", "DISP_CHANGE_NOTUPDATED", MB_OK | MB_ICONEXCLAMATION);
break;
}
case DISP_CHANGE_RESTART:
{
fullscreenflag = false;
ShowCursor(true);
LogToFile("Failed to set fullscreen mode: error (DISP_CHANGE_RESTART)");
MessageBox(NULL, "Failed to set fullscreen mode", "DISP_CHANGE_RESTART", MB_OK | MB_ICONEXCLAMATION);
break;
}
}
}
if(fullscreenflag)
{
dwExStyle = WS_EX_APPWINDOW;
//dwStyle = WS_OVERLAPPED;
dwStyle = WS_POPUP;
}
else
{
dwExStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
dwStyle = WS_OVERLAPPED;
}
AdjustWindowRectEx(&window_rect, dwStyle, false, dwExStyle);
game_window = CreateWindowEx(dwExStyle,
window_class.lpszClassName, GAMENAME,
WS_CLIPSIBLINGS | WS_CLIPCHILDREN |
dwStyle,
GetSystemMetrics(0) - GetSystemMetrics(0)/2 - window_rect.right / 2,
GetSystemMetrics(1) - GetSystemMetrics(1)/2 - window_rect.bottom / 2,
window_rect.right - window_rect.left,
window_rect.bottom - window_rect.top,
NULL, NULL, hInstance, NULL);
if(!game_window)
{
LogToFile("debug.log","Failed to create game window");
MessageBox(NULL, "Failed to create game window", "CreateWindowEx() Error", MB_OK | MB_ICONEXCLAMATION);
PostQuitMessage(-1);
}
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cDepthBits = 24;
pfd.iLayerType = PFD_MAIN_PLANE;
pfd.cColorBits = cfg.scr_bpp;
hDC = GetDC(game_window);
if(!hDC)
{
LogToFile("debug.log","Failed to create device context");
MessageBox(NULL, "Failed to create device context", "GetDC() Error", MB_OK | MB_ICONEXCLAMATION);
PostQuitMessage(-1);
}
pf = ChoosePixelFormat(hDC, &pfd);
if(!pf)
{
LogToFile("debug.log","Failed to choose pixel format");
MessageBox(NULL, "Failed to set pixel format", "ChoosePixelFormat() Error", MB_OK | MB_ICONEXCLAMATION);
PostQuitMessage(-1);
}
if(!SetPixelFormat(hDC, pf, &pfd))
{
LogToFile("debug.log","Failed to set pixel format");
MessageBox(NULL, "Failed to set pixel format", "SetPixelFormat() Error", MB_OK | MB_ICONEXCLAMATION);
PostQuitMessage(-1);
}
hRC = wglCreateContext(hDC);
if(!hRC)
{
LogToFile("debug.log","Failed to create rendering context");
MessageBox(NULL, "Failed to create rendering context", "wglCreateContext() Error", MB_OK | MB_ICONEXCLAMATION);
PostQuitMessage(-1);
}
if(!wglMakeCurrent(hDC, hRC))
{
LogToFile("debug.log","Failed to make current context");
MessageBox(NULL, "Failed to make current context", "wglMakeCurrent() Error", MB_OK | MB_ICONEXCLAMATION);
PostQuitMessage(-1);
}
ShowWindow(game_window, SW_SHOW);
SetForegroundWindow(game_window);
SetFocus(game_window);
}
//--------------------------------------------------------------------------------------
// Initialize drawing API
//--------------------------------------------------------------------------------------
HRESULT InitBackend(HWND hWnd)
{
if (!(g_hDC = GetDC(hWnd)))
{
printf("Error: Device fail.\n");
return E_FAIL;
}
int format;
static PIXELFORMATDESCRIPTOR pfd =
{
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
32, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
16, // 16Bit Z-Buffer (Depth Buffer)
0, // No Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0
};
if (!(format = ChoosePixelFormat(g_hDC, &pfd)))
{
printf("Error: PixelFormat fail.\n");
return E_FAIL;
}
if (!SetPixelFormat(g_hDC, format, &pfd))
{
printf("Error: PixelFormat not set.\n");
return E_FAIL;
}
if (!(g_hRC = wglCreateContext(g_hDC)))
{
printf("Error: Context not creted.\n");
return E_FAIL;
}
if (!wglMakeCurrent(g_hDC, g_hRC))
{
printf("Error: Context not set.\n");
return E_FAIL;
}
// initialize glew
GLenum res = glewInit();
if (res != GLEW_OK)
{
printf("Error: GLEW fail.\n");
return E_FAIL;
}
return S_OK;
}
BOOL CreateWindowGL (GL_Window* window) // This Code Creates Our OpenGL Window
{
DWORD windowStyle = WS_OVERLAPPEDWINDOW; // Define Our Window Style
DWORD windowExtendedStyle = WS_EX_APPWINDOW; // Define The Window's Extended Style
PIXELFORMATDESCRIPTOR pfd = // pfd Tells Windows How We Want Things To Be
{
sizeof (PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
window->init.bitsPerPixel, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
16, // 16Bit Z-Buffer (Depth Buffer)
0, // No Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
RECT windowRect = {0, 0, window->init.width, window->init.height}; // Define Our Window Coordinates
GLuint PixelFormat; // Will Hold The Selected Pixel Format
if (window->init.isFullScreen == TRUE) // Fullscreen Requested, Try Changing Video Modes
{
if (ChangeScreenResolution (window->init.width, window->init.height, window->init.bitsPerPixel) == FALSE)
{
// Fullscreen Mode Failed. Run In Windowed Mode Instead
MessageBox (HWND_DESKTOP, "Mode Switch Failed.\nRunning In Windowed Mode.", "Error", MB_OK | MB_ICONEXCLAMATION);
window->init.isFullScreen = FALSE; // Set isFullscreen To False (Windowed Mode)
}
else // Otherwise (If Fullscreen Mode Was Successful)
{
ShowCursor (FALSE); // Turn Off The Cursor
windowStyle = WS_POPUP; // Set The WindowStyle To WS_POPUP (Popup Window)
windowExtendedStyle |= WS_EX_TOPMOST; // Set The Extended Window Style To WS_EX_TOPMOST
} // (Top Window Covering Everything Else)
}
else // If Fullscreen Was Not Selected
{
// Adjust Window, Account For Window Borders
AdjustWindowRectEx (&windowRect, windowStyle, 0, windowExtendedStyle);
}
// Create The OpenGL Window
window->hWnd = CreateWindowEx (windowExtendedStyle, // Extended Style
window->init.application->className, // Class Name
window->init.title, // Window Title
windowStyle, // Window Style
0, 0, // Window X,Y Position
windowRect.right - windowRect.left, // Window Width
windowRect.bottom - windowRect.top, // Window Height
HWND_DESKTOP, // Desktop Is Window's Parent
0, // No Menu
window->init.application->hInstance, // Pass The Window Instance
window);
if (window->hWnd == 0) // Was Window Creation A Success?
{
return FALSE; // If Not Return False
}
window->hDC = GetDC (window->hWnd); // Grab A Device Context For This Window
if (window->hDC == 0) // Did We Get A Device Context?
{
// Failed
DestroyWindow (window->hWnd); // Destroy The Window
window->hWnd = 0; // Zero The Window Handle
return FALSE; // Return False
}
PixelFormat = ChoosePixelFormat (window->hDC, &pfd); // Find A Compatible Pixel Format
if (PixelFormat == 0) // Did We Find A Compatible Format?
{
// Failed
ReleaseDC (window->hWnd, window->hDC); // Release Our Device Context
window->hDC = 0; // Zero The Device Context
DestroyWindow (window->hWnd); // Destroy The Window
window->hWnd = 0; // Zero The Window Handle
return FALSE; // Return False
}
if (SetPixelFormat (window->hDC, PixelFormat, &pfd) == FALSE) // Try To Set The Pixel Format
{
// Failed
ReleaseDC (window->hWnd, window->hDC); // Release Our Device Context
window->hDC = 0; // Zero The Device Context
DestroyWindow (window->hWnd); // Destroy The Window
window->hWnd = 0; // Zero The Window Handle
return FALSE; // Return False
}
window->hRC = wglCreateContext (window->hDC); // Try To Get A Rendering Context
if (window->hRC == 0) // Did We Get A Rendering Context?
{
// Failed
ReleaseDC (window->hWnd, window->hDC); // Release Our Device Context
window->hDC = 0; // Zero The Device Context
DestroyWindow (window->hWnd); // Destroy The Window
window->hWnd = 0; // Zero The Window Handle
return FALSE; // Return False
}
// Make The Rendering Context Our Current Rendering Context
if (wglMakeCurrent (window->hDC, window->hRC) == FALSE)
{
// Failed
wglDeleteContext (window->hRC); // Delete The Rendering Context
window->hRC = 0; // Zero The Rendering Context
ReleaseDC (window->hWnd, window->hDC); // Release Our Device Context
window->hDC = 0; // Zero The Device Context
DestroyWindow (window->hWnd); // Destroy The Window
window->hWnd = 0; // Zero The Window Handle
return FALSE; // Return False
}
ShowWindow (window->hWnd, SW_NORMAL); // Make The Window Visible
window->isVisible = TRUE; // Set isVisible To True
ReshapeGL (window->init.width, window->init.height); // Reshape Our GL Window
ZeroMemory (window->keys, sizeof (Keys)); // Clear All Keys
window->lastTickCount = GetTickCount (); // Get Tick Count
return TRUE; // Window Creating Was A Success
// Initialization Will Be Done In WM_CREATE
}
BOOL CreateGLWindow(HWND hWnd, HDC *phDC, HGLRC *phRC)
{
GLuint nPixelFormat; // Holds The Results After Searching For A Match
RECT rect;
PIXELFORMATDESCRIPTOR pfd = // pfd Tells Windows How We Want Things To Be
{
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW // Format Must Support Window
| PFD_SUPPORT_OPENGL // Format Must Support OpenGL
| PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
0, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
0, // Z-Buffer (Depth Buffer)
0, // No Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
if (!(*phDC = GetDC(hWnd))) // Did We Get A Device Context?
{
KillGLWindow(hWnd, *phDC, *phRC); // Reset The Display
MessageBox(hWnd, _T("Can't Create A GL Device Context."), _T("ERROR"), MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (!(nPixelFormat = ChoosePixelFormat(*phDC, &pfd)))// Did Windows Find A Matching Pixel Format?
{
KillGLWindow(hWnd, *phDC, *phRC); // Reset The Display
MessageBox(hWnd, _T("Can't Find A Suitable PixelFormat."), _T("ERROR"), MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (!SetPixelFormat(*phDC, nPixelFormat, &pfd)) // Are We Able To Set The Pixel Format?
{
KillGLWindow(hWnd, *phDC, *phRC); // Reset The Display
MessageBox(hWnd, _T("Can't Set The PixelFormat."), _T("ERROR"), MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (!(*phRC = wglCreateContext(*phDC))) // Are We Able To Get A Rendering Context?
{
KillGLWindow(hWnd, *phDC, *phRC); // Reset The Display
MessageBox(hWnd, _T("Can't Create A GL Rendering Context."), _T("ERROR"), MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (!wglMakeCurrent(*phDC, *phRC)) // Try To Activate The Rendering Context
{
KillGLWindow(hWnd, *phDC, *phRC); // Reset The Display
MessageBox(hWnd, _T("Can't Activate The GL Rendering Context."), _T("ERROR"), MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
GetClientRect(hWnd, &rect);
ReSizeGLScene(rect.right, rect.bottom); // Set Up Our Perspective GL Screen
if (!InitGL()) // Initialize Our Newly Created GL Window
{
KillGLWindow(hWnd, *phDC, *phRC); // Reset The Display
MessageBox(hWnd, _T("Initialization Failed."), _T("ERROR"), MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
return TRUE; // Success
}
/*
** GLW_MakeContext
*/
static int GLW_MakeContext( PIXELFORMATDESCRIPTOR *pPFD ) {
int pixelformat;
//
// don't putz around with pixelformat if it's already set (e.g. this is a soft
// reset of the graphics system)
//
if ( !glw_state.pixelFormatSet ) {
//
// choose, set, and describe our desired pixel format. If we're
// using a minidriver then we need to bypass the GDI functions,
// otherwise use the GDI functions.
//
if ( ( pixelformat = GLW_ChoosePFD( glw_state.hDC, pPFD ) ) == 0 ) {
ri.Printf( PRINT_ALL, "...GLW_ChoosePFD failed\n" );
return TRY_PFD_FAIL_SOFT;
}
ri.Printf( PRINT_ALL, "...PIXELFORMAT %d selected\n", pixelformat );
if ( glConfig.driverType > GLDRV_ICD ) {
qwglDescribePixelFormat( glw_state.hDC, pixelformat, sizeof( *pPFD ), pPFD );
if ( qwglSetPixelFormat( glw_state.hDC, pixelformat, pPFD ) == FALSE ) {
ri.Printf( PRINT_ALL, "...qwglSetPixelFormat failed\n" );
return TRY_PFD_FAIL_SOFT;
}
} else
{
DescribePixelFormat( glw_state.hDC, pixelformat, sizeof( *pPFD ), pPFD );
if ( SetPixelFormat( glw_state.hDC, pixelformat, pPFD ) == FALSE ) {
ri.Printf( PRINT_ALL, "...SetPixelFormat failed\n", glw_state.hDC );
return TRY_PFD_FAIL_SOFT;
}
}
glw_state.pixelFormatSet = qtrue;
}
//
// startup the OpenGL subsystem by creating a context and making it current
//
if ( !glw_state.hGLRC ) {
ri.Printf( PRINT_ALL, "...creating GL context: " );
if ( ( glw_state.hGLRC = qwglCreateContext( glw_state.hDC ) ) == 0 ) {
ri.Printf( PRINT_ALL, "failed\n" );
return TRY_PFD_FAIL_HARD;
}
ri.Printf( PRINT_ALL, "succeeded\n" );
ri.Printf( PRINT_ALL, "...making context current: " );
if ( !qwglMakeCurrent( glw_state.hDC, glw_state.hGLRC ) ) {
qwglDeleteContext( glw_state.hGLRC );
glw_state.hGLRC = NULL;
ri.Printf( PRINT_ALL, "failed\n" );
return TRY_PFD_FAIL_HARD;
}
ri.Printf( PRINT_ALL, "succeeded\n" );
}
return TRY_PFD_SUCCESS;
}
const GrGLInterface* SkNativeGLContext::createGLContext() {
HINSTANCE hInstance = (HINSTANCE)GetModuleHandle(NULL);
if (!gWC) {
WNDCLASS wc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hbrBackground = NULL;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hInstance = hInstance;
wc.lpfnWndProc = (WNDPROC) DefWindowProc;
wc.lpszClassName = TEXT("Griffin");
wc.lpszMenuName = NULL;
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
gWC = RegisterClass(&wc);
if (!gWC) {
SkDebugf("Could not register window class.\n");
return NULL;
}
}
if (!(fWindow = CreateWindow(TEXT("Griffin"),
TEXT("The Invisible Man"),
WS_OVERLAPPEDWINDOW,
0, 0, 1, 1,
NULL, NULL,
hInstance, NULL))) {
SkDebugf("Could not create window.\n");
return NULL;
}
if (!(fDeviceContext = GetDC(fWindow))) {
SkDebugf("Could not get device context.\n");
this->destroyGLContext();
return NULL;
}
PIXELFORMATDESCRIPTOR pfd;
ZeroMemory(&pfd, sizeof(pfd));
pfd.nSize = sizeof(pfd);
pfd.nVersion = 1;
pfd.dwFlags = PFD_SUPPORT_OPENGL;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.cDepthBits = 0;
pfd.cStencilBits = 0;
pfd.iLayerType = PFD_MAIN_PLANE;
int pixelFormat = 0;
if (!(pixelFormat = ChoosePixelFormat(fDeviceContext, &pfd))) {
SkDebugf("No matching pixel format descriptor.\n");
this->destroyGLContext();
return NULL;
}
if (!SetPixelFormat(fDeviceContext, pixelFormat, &pfd)) {
SkDebugf("Could not set the pixel format %d.\n", pixelFormat);
this->destroyGLContext();
return NULL;
}
if (!(fGlRenderContext = wglCreateContext(fDeviceContext))) {
SkDebugf("Could not create rendering context.\n");
this->destroyGLContext();
return NULL;
}
if (!(wglMakeCurrent(fDeviceContext, fGlRenderContext))) {
SkDebugf("Could not set the context.\n");
this->destroyGLContext();
return NULL;
}
const GrGLInterface* interface = GrGLCreateNativeInterface();
if (NULL == interface) {
SkDebugf("Could not create GL interface.\n");
this->destroyGLContext();
return NULL;
}
return interface;
}
/**
* Sets the window to use an OpenGL drawing context.
* @return Returns an error if something goes wrong when setting the drawing state.
*/
int Window::setWindowDrawingStateGL()
{
// Create a variable for storing the pixel format of the window.
int pixelFormat;
// Setup the pixel format descriptor.
static PIXELFORMATDESCRIPTOR pixelFormatDesc =
{
// Set the size of the descriptor.
sizeof(PIXELFORMATDESCRIPTOR),
1,
// Set the properties to draw to a window, support OpenGL, and be double buffered.
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
// Set the window to have the normal RGB spectrum, as well as an alpha value.
PFD_TYPE_RGBA,
// Set the bits per pixel to the desired value.
this->bitsPerPixel,
0, 0, 0, 0, 0, 0,
0,
0,
0,
0, 0, 0, 0,
16,
16,
0,
PFD_MAIN_PLANE,
0,
0, 0, 0
};
// Attempt to get a device context from the window handle.
if (!(deviceContext = GetDC(windowHandle)))
{
// If getting device context from the window fails, destroy the OpenGL system and the window.
this->destroyGLSystem();
this->destroy();
#ifdef _DEBUG
// If debugging, display an error indicating that the device context couldn't be gotten.
MessageBox(NULL, (LPCWSTR)L"Error getting device context!", (LPCWSTR)L"Create GL Context ERROR", MB_OK | MB_ICONERROR);
#else
// If not debugging, a clean error is displayed to the user so they can report the issue.
MessageBox(NULL, (LPCWSTR)L"Error starting application!\nError code: WCGL" + WCGL_GET_CONTEXT_ERROR, (LPCWSTR)L"Error", MB_OK | MB_ICONERROR);
#endif
// Return an error indicating that the device context couldn't be gotten.
return WCGL_GET_CONTEXT_ERROR;
}
// Attempt to get the pixel format.
if (!(pixelFormat = ChoosePixelFormat(deviceContext, &pixelFormatDesc)))
{
// If this failed, destroy the OpenGL system.
this->destroyGLSystem();
// Also destroy the window.
this->destroy();
#ifdef _DEBUG
// If debugging, display that there was an error finding a usable pixel format.
MessageBox(NULL, (LPCWSTR)L"Error finding a usable pixel format!", (LPCWSTR)L"Create GL Context ERROR", MB_OK | MB_ICONERROR);
#else
// If not debugging, a clean error is displayed to the user so they can report the issue.
MessageBox(NULL, (LPCWSTR)L"Error starting application!\nError code: WCGL" + WCGL_GET_PF_ERROR, (LPCWSTR)L"Error", MB_OK | MB_ICONERROR);
#endif
// Return an error indicating that the pixel format couldn't be gotten.
return WCGL_GET_PF_ERROR;
}
// Try to set the pixel format for the device context.
if (!SetPixelFormat(deviceContext, pixelFormat, &pixelFormatDesc))
{
// If this failed, destroy the OpenGL system.
this->destroyGLSystem();
// Also destroy the window.
this->destroy();
#ifdef _DEBUG
// If debugging, display an error indicating that the pixel format couldn't be set.
MessageBox(NULL, (LPCWSTR)L"Error setting pixel format!", (LPCWSTR)L"Create GL Context ERROR", MB_OK | MB_ICONERROR);
#else
// If not debugging, a clean error is displayed to the user so they can report the issue.
MessageBox(NULL, (LPCWSTR)L"Error starting application!\nError code: WCGL" + WCGL_SET_PF_ERROR, (LPCWSTR)L"Error", MB_OK | MB_ICONERROR);
#endif
// Return an error indicating that the pixel format couldn't be set.
return WCGL_SET_PF_ERROR;
}
// Attempt to create an OpenGL context and store it.
if (!(renderingContext = wglCreateContext(deviceContext)))
{
// If this failed, destroy the OpenGL system.
this->destroyGLSystem();
// Also destroy the window.
this->destroy();
#ifdef _DEBUG
// Display an error indicating what happened if debuging.
MessageBox(NULL, (LPCWSTR)L"Error creating rendering context!", (LPCWSTR)L"Create GL Context ERROR", MB_OK | MB_ICONERROR);
#else
// If not debugging, a clean error is displayed to the user so they can report the issue.
MessageBox(NULL, (LPCWSTR)L"Error starting application!\nError code: WCGL" + WCGL_CREATE_CONTEXT_ERROR, (LPCWSTR)L"Error", MB_OK | MB_ICONERROR);
#endif
// Return an error indicating that the OpenGL context couldn't be created.
return WCGL_CREATE_CONTEXT_ERROR;
}
// Try to set the current OpenGL context.
if (!wglMakeCurrent(deviceContext, renderingContext))
{
// If this failed, destroy the OpenGL system.
this->destroyGLSystem();
// Also destroy the window.
this->destroy();
#ifdef _DEBUG
// If debugging, display an error indicating that the current context couldn't be set.
MessageBox(NULL, (LPCWSTR)L"Error making rendering context the current one!", (LPCWSTR)L"Create GL Context ERROR", MB_OK | MB_ICONERROR);
#else
// If not debugging, a clean error is displayed to the user so they can report the issue.
MessageBox(NULL, (LPCWSTR)L"Error starting application!\nError code: WCGL" + WCGL_SET_CONTEXT_ERROR, (LPCWSTR)L"Error", MB_OK | MB_ICONERROR);
#endif
/**
* Return an error indicating that the OpenGL context couldn't be set.
*/
return WCGL_SET_CONTEXT_ERROR;
}
return OK;
}
//------------------------------------------------------------------------------
// Static
bool GLContextImpl::setPixelFormat(HWND hwnd, GLContextSettings & settings)
{
ensureGLExtensions();
HDC hdc = GetDC(hwnd);
//HGLRC hrc = nullptr;
u32 bitsPerPixel = 32;
// Let's find a suitable pixel format -- first try with antialiasing
int bestFormat = 0;
if (settings.multiSampleLevel > 0)
{
// Get the wglChoosePixelFormatARB function (it is an extension)
//PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARB = reinterpret_cast<PFNWGLCHOOSEPIXELFORMATARBPROC>(wglGetProcAddress("wglChoosePixelFormatARB"));
if (wglChoosePixelFormatARB)
{
// Define the basic attributes we want for our window
int intAttributes[] =
{
WGL_DRAW_TO_WINDOW_ARB, GL_TRUE,
WGL_SUPPORT_OPENGL_ARB, GL_TRUE,
WGL_ACCELERATION_ARB, WGL_FULL_ACCELERATION_ARB,
WGL_DOUBLE_BUFFER_ARB, GL_TRUE,
WGL_SAMPLE_BUFFERS_ARB, (settings.multiSampleLevel ? GL_TRUE : GL_FALSE),
WGL_SAMPLES_ARB, settings.multiSampleLevel,
0, 0
};
// Let's check how many formats are supporting our requirements
int formats[128];
UINT nbFormats;
float floatAttributes[] = { 0, 0 };
bool isValid = wglChoosePixelFormatARB(hdc, intAttributes, floatAttributes, sizeof(formats) / sizeof(*formats), formats, &nbFormats) != 0;
while ((!isValid || (nbFormats == 0)) && settings.multiSampleLevel > 0)
{
// Decrease the antialiasing level until we find a valid one
--settings.multiSampleLevel;
intAttributes[11] = settings.multiSampleLevel;
isValid = wglChoosePixelFormatARB(hdc, intAttributes, floatAttributes, sizeof(formats) / sizeof(*formats), formats, &nbFormats) != 0;
}
// Get the best format among the returned ones
if (isValid && (nbFormats > 0))
{
int bestScore = 0xFFFF;
for (UINT i = 0; i < nbFormats; ++i)
{
// Get the current format's attributes
PIXELFORMATDESCRIPTOR attributes;
attributes.nSize = sizeof(attributes);
attributes.nVersion = 1;
DescribePixelFormat(hdc, formats[i], sizeof(attributes), &attributes);
// Evaluate the current configuration
int color = attributes.cRedBits + attributes.cGreenBits + attributes.cBlueBits + attributes.cAlphaBits;
int score = settings.evaluate(bitsPerPixel, color, attributes.cDepthBits, attributes.cStencilBits, settings.multiSampleLevel);
// Keep it if it's better than the current best
if (score < bestScore)
{
bestScore = score;
bestFormat = formats[i];
}
}
}
}
else
{
// wglChoosePixelFormatARB not supported ; disabling antialiasing
SN_WARNING("Antialiasing is not supported ; it will be disabled");
settings.multiSampleLevel = 0;
}
}
// Find a pixel format with no antialiasing, if not needed or not supported
if (bestFormat == 0)
{
// Setup a pixel format descriptor from the rendering settings
PIXELFORMATDESCRIPTOR descriptor;
ZeroMemory(&descriptor, sizeof(descriptor));
descriptor.nSize = sizeof(descriptor);
descriptor.nVersion = 1;
descriptor.iLayerType = PFD_MAIN_PLANE;
descriptor.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
descriptor.iPixelType = PFD_TYPE_RGBA;
descriptor.cColorBits = static_cast<BYTE>(bitsPerPixel);
descriptor.cDepthBits = static_cast<BYTE>(settings.depthBits);
descriptor.cStencilBits = static_cast<BYTE>(settings.stencilBits);
descriptor.cAlphaBits = bitsPerPixel == 32 ? 8 : 0;
// Get the pixel format that best matches our requirements
bestFormat = ChoosePixelFormat(hdc, &descriptor);
if (bestFormat == 0)
{
SN_ERROR("Failed to find a suitable pixel format for device context -- cannot create OpenGL context");
ReleaseDC(hwnd, hdc);
return false;
}
}
// Extract the depth and stencil bits from the chosen format
PIXELFORMATDESCRIPTOR actualFormat;
actualFormat.nSize = sizeof(actualFormat);
actualFormat.nVersion = 1;
DescribePixelFormat(hdc, bestFormat, sizeof(actualFormat), &actualFormat);
settings.depthBits = actualFormat.cDepthBits;
settings.stencilBits = actualFormat.cStencilBits;
// Set the chosen pixel format
if (!SetPixelFormat(hdc, bestFormat, &actualFormat))
{
SN_ERROR("Failed to set pixel format for device context -- cannot create OpenGL context");
return false;
}
ReleaseDC(hwnd, hdc);
return true;
}
/* This Code Creates Our OpenGL Window. Parameters Are: *
* title - Title To Appear At The Top Of The Window *
* width - Width Of The GL Window Or Full screen Mode *
* height - Height Of The GL Window Or Full screen Mode *
* bits - Number Of Bits To Use For Color (8/16/24/32) *
* fullscreenflag - Use Full screen Mode (TRUE) Or Windowed Mode (FALSE) */
BOOL CreateGLWindow(char* title, int width, int height, int bits, bool fullScreenFlag)
{
GLuint PixelFormat; // Holds the results after searching for a match
WNDCLASS wc; // Windows class structure
DWORD dwExStyle; // Window extended style
DWORD dwStyle; // Window style
RECT WindowRect; // Grabs rectangle upper left/lower right values
WindowRect.left = (long)0; // Set left value to 0
WindowRect.right = (long)width; // Set right value to requested width
WindowRect.top = (long)0; // Set top value to 0
WindowRect.bottom = (long)height; // Set bottom value to requested height
g_bFullscreen = fullScreenFlag; // Set the global full screen flag
hInstance = GetModuleHandle(NULL); // Grab an instance for out window
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // Redraw on size, and own DC for window
wc.lpfnWndProc = (WNDPROC)WndProc; // WndProc handles messages
wc.cbClsExtra = 0; // No extra window data
wc.cbWndExtra = 0; // No extra window data
wc.hInstance = hInstance; // Set the instance
wc.hIcon = LoadIcon(NULL, IDI_WINLOGO); // Load the default icon
wc.hCursor = LoadCursor(NULL, IDC_ARROW); // Load the arrow pointer
wc.hbrBackground = NULL; // No background required for GL
wc.lpszMenuName = NULL; // We don't want a menu
wc.lpszClassName = CLASSNAME; // Set the class name
if (!RegisterClass(&wc)) // Attempt to register the window class
{
MessageBox(NULL, MSG_REGISTERCLASSFAILED,
ERR_ERROR, MB_OK | MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (g_bFullscreen)
{
DEVMODE dmScreenSettings; // Device mode
memset(&dmScreenSettings, 0, sizeof(dmScreenSettings)); // Makes sure memory's cleared
dmScreenSettings.dmSize = sizeof(dmScreenSettings); // Size of the devmode structure
dmScreenSettings.dmPelsWidth = width; // Selected screen width
dmScreenSettings.dmPelsHeight = height; // Selected screen height
dmScreenSettings.dmBitsPerPel = bits; // Selected bits per pixel
dmScreenSettings.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
// Try to set selected mode and get results. NOTE: CDS_FULLSCREEN gets rid of start bar.
if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
{
// If the mode failed, offer two options. Quit or use windowed mode.
if (MessageBox(NULL, MSG_FULLSCREENNOTSUPPORT,
ARTIST_NAME, MB_YESNO | MB_ICONEXCLAMATION) == IDYES)
{
g_bFullscreen = FALSE; // Windowed mode selected. Fullscreen = FALSE
}
else
{
// Pop up a message box letting user know the program is closing.
MessageBox(NULL, MSG_PROGRAMNOTCLOSE,
ERR_ERROR, MB_OK | MB_ICONSTOP);
return FALSE; // Return FALSE
}
}
}
if (g_bFullscreen) // Are we still in fullscreen mode?
{
dwExStyle = WS_EX_APPWINDOW; // Window extended style
dwStyle = WS_POPUP; // Windows Style
ShowCursor(FALSE); // Hide mouse pointer
}
else
{
dwExStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE; // Windows Extended style
dwStyle = WS_OVERLAPPEDWINDOW; // Windows Style
}
AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle); // Adjust window to true requested size
// Create the window
if (!(hWnd = CreateWindowEx(dwExStyle, // Extended style for the window
CLASSNAME, // Class name
title, // Window title
dwStyle | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, // Defined window style
0, 0, // Window position
WindowRect.right - WindowRect.left, // Calculate window width
WindowRect.bottom - WindowRect.top, // Calculate window height
NULL, // No parent window
NULL, // No menu
hInstance, // Instance
NULL))) // Don't pass anything to WM_CREATE
{
KillGLWindow(); // Reset the display
MessageBox(NULL, MSG_CREATEWINDOWFAILED,
ERR_ERROR, MB_OK | MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
static PIXELFORMATDESCRIPTOR pfd = // pfd tells widows how we want things to be
{
sizeof(PIXELFORMATDESCRIPTOR), // Size of this pixel format descriptor
1, // Version number
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER, // Format must support window/opengl/double buffering
PFD_TYPE_RGBA, // Request an RGBA format
bits, // Select our color depth
0, 0, 0, 0, 0, 0, // Color bits ignored
0, // No Alpha buffer
0, // Shift bit ignored
0, // No accumulation buffer
0, 0, 0, 0, // Accumulation bits ignored
DEPTHBUFFER, // 16bit z-buffer (depth buffer)
0, // No stencil buffer
0, // No auxiliary buffer
PFD_MAIN_PLANE, // Main drawing layer
0, // Reserved
0, 0, 0 // Layer masks ignored
};
if (!(hDC = GetDC(hWnd))) // Did we get a device context
{
KillGLWindow(); // Reset the display
MessageBox(NULL, MSG_CREATEGLDCFAILED,
ERR_ERROR, MB_OK | MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (!(PixelFormat = ChoosePixelFormat(hDC, &pfd))) // Did Windows Find A Matching Pixel Format?
{
KillGLWindow(); // Reset The Display
MessageBox(NULL, MSG_FINDPIXELFORMATFAILED,
ERR_ERROR, MB_OK | MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (!SetPixelFormat(hDC, PixelFormat, &pfd)) // Are We Able To Set The Pixel Format?
{
KillGLWindow(); // Reset The Display
MessageBox(NULL, MSG_SETPIXELFORMATFAILED,
ERR_ERROR, MB_OK | MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (!(hRC = wglCreateContext(hDC))) // Are We Able To Get A Rendering Context?
{
KillGLWindow(); // Reset The Display
MessageBox(NULL, MSG_CREATEGLRCFAILED,
ERR_ERROR, MB_OK | MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (!wglMakeCurrent(hDC, hRC)) // Try To Activate The Rendering Context
{
KillGLWindow(); // Reset The Display
MessageBox(NULL, MSG_ACTIVEGLRCFAILED,
ERR_ERROR, MB_OK | MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
ShowWindow(hWnd, SW_SHOW); // Show The Window
SetForegroundWindow(hWnd); // Slightly Higher Priority
SetFocus(hWnd); // Sets Keyboard Focus To The Window
ReSizeGLScene(width, height); // Set Up Our Perspective GL Screen
if (!InitGL()) // Initialize Our Newly Created GL Window
{
KillGLWindow(); // Reset The Display
MessageBox(NULL, MSG_INITFAILED,
ERR_ERROR, MB_OK | MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
return TRUE; // Success
}
/** 创建windows窗口 */
bool GLWindow::Create(const char * window_title,const char * class_name, HINSTANCE h_instance, LPVOID lpParam)
{
int nX=0;
int nY=0;
PIXELFORMATDESCRIPTOR pfd = /**< 设置像素描述结构 */
{
sizeof(PIXELFORMATDESCRIPTOR), /**< 像素描述结构的大小 */
1, /**< 版本号 */
PFD_DRAW_TO_WINDOW | /**< 缓存区的输出显示在一个窗口中 */
PFD_SUPPORT_OPENGL | /**< 缓存区支持OpenGL绘图 */
PFD_STEREO | /**< 颜色缓存区是立体缓存 */
PFD_DOUBLEBUFFER, /**< 颜色缓存区是双缓存 */
PFD_TYPE_RGBA, /**< 使用RGBA颜色格式 */
m_BitsPerPixel, /**< 颜色缓存区中颜色值所占的位深 */
0, 0, 0, 0, 0, 0, /**< 使用默认的颜色设置 */
0, /**< 无Alpha缓存 */
0, /**< 颜色缓存区中alpha成分的移位计数 */
0, /**< 无累计缓存区 */
0, 0, 0, 0, /**< 累计缓存区无移位 */
32, /**< 32位深度缓存 */
0, /**< 无蒙版缓存 */
0, /**< 无辅助缓存区 */
PFD_MAIN_PLANE, /**< 必须为PFD_MAIN_PLANE，设置为主绘图层 */
0, /**< 表示OpenGL实现所支持的上层或下层平面的数量 */
0, 0, 0 /**< 过时，已不再使用 */
};
DWORD windowStyle = WS_TILEDWINDOW ; /**< 定义我们窗口类型，使用常规设定 */
DWORD windowExtendedStyle = WS_EX_APPWINDOW;
if (m_IsFullScreen == true) /**< 如果为全屏模式，尝试转化为全屏模式 */
{
if (ChangeScreenSetting() == false)
{ /**< 全屏模式转换失败，弹出对话框提示，并尝试窗口模式 */
MessageBox(HWND_DESKTOP, "模式转换失败.\n在窗口模式下运行.", "Error", MB_OK | MB_ICONEXCLAMATION);
m_IsFullScreen = false; /**< 设置为窗口模式 */
}
else /**< 如果为窗口模式 */
{
ShowCursor(false); /**< 隐藏鼠标 */
windowStyle = WS_POPUP; /**< 设置窗口模式为顶层窗口 */
windowExtendedStyle |= WS_EX_TOPMOST;
}
}
/// 调整我们窗口的大小，使其客户区的大小为我们设置的大小
RECT windowRect = {GetPosX(), GetPosY(), GetPosX() + GetWidth(), GetPosY() + GetHeight()};
if (m_IsFullScreen == false) /**< 在窗口模式下使用 */
{
windowExtendedStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE; /**< 使窗口具有3D外观 */
int wid = GetSystemMetrics(SM_CXSCREEN); /**< 获取当前屏幕宽 */
int hei = GetSystemMetrics(SM_CYSCREEN); /**< 获取当前屏幕高 */
nX = (wid - GetWidth()) / 2; /**< 计算窗口居中用 */
nY = (hei - GetHeight()) / 2;
/// 调整我们窗口的大小，使其客户区的大小为我们设置的大小
AdjustWindowRectEx(&windowRect, windowStyle, 0, windowExtendedStyle);
/// 判断窗口的左上角是否隐藏在桌面外
if (windowRect.left < 0) /**< 如果窗口X坐标为负，移动坐标到0处，并调整窗口的位置 */
{
windowRect.right -= windowRect.left;
windowRect.left = 0;
}
if (windowRect.top < 0) /**< 如果窗口Y坐标为负，移动坐标到0处，并调整窗口的位置 */
{
windowRect.bottom -= windowRect.top;
windowRect.top = 0;
}
}
/// 创建窗口
m_hWnd = CreateWindowEx(windowExtendedStyle, /**< 窗口的扩展风格 */
class_name, /**< 窗口的类名 */
window_title, /**< 窗口标题 */
windowStyle, /**< 窗口的风格 */
nX,nY, /**< 窗口的左上角位置 */
windowRect.right - windowRect.left, /**< 窗口的宽度 */
windowRect.bottom - windowRect.top, /**< 窗口的高度 */
HWND_DESKTOP, /**< 窗口的父窗口为桌面 */
0, /**< 无菜单 */
h_instance, /**< 传入窗口的实例句柄 */
lpParam); /**< 传入程序类参数 */
while (m_hWnd != 0) /**< 窗口是否创建成功 */
{
m_hDC = GetDC(m_hWnd); /**< 返回窗口的设备描述表 */
if (m_hDC == 0) /**< 如果为空 */
{ /**< 失败 */
break;
}
GLuint PixelFormat = ChoosePixelFormat(m_hDC, &pfd); /**< 查找一个兼容的像素格式 */
if (PixelFormat == 0) /**< 如果没找到 */
{ /**< 失败 */
break;
}
if (SetPixelFormat(m_hDC, PixelFormat, &pfd) == false) /**< 设置像素格式 */
{ /**< 失败 */
break;
}
m_hRC = wglCreateContext(m_hDC); /**< 创建OpenGL的渲染描述表 */
if (m_hRC == 0) /**< 如果为空 */
{ /**< 失败 */
break;
}
if (wglMakeCurrent(m_hDC, m_hRC) == false) /**< 设置当前的OpenGL的渲染对象为当前的窗口 */
{ /**< 失败 */
break;
}
ShowWindow(m_hWnd, SW_NORMAL); /**< 显示窗口 */
ReshapeGL(); /**< 告诉OpenGL调整窗口大小 */
return true; /**< 成功返回 */
}
Destroy(); /**< 释放资源 */
return false; /**< 返回失败 */
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
// console for debugging
//AllocConsole();
//freopen("CONOUT$","wb",stdout);
WNDCLASSEX wc;
HWND hwnd;
MSG msg;
// register window class
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDI_WINLOGO);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = NULL;
wc.lpszMenuName = NULL;
wc.lpszClassName = g_windowClass;
wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
unsigned int winWidth = WINDOW_WIDTH;
unsigned int winHeight = WINDOW_HEIGHT;
if(!RegisterClassEx(&wc))
{
MessageBox(NULL, "Window Registration Failed", "Error", MB_ICONEXCLAMATION | MB_OK);
return 0;
}
// create window
hwnd = CreateWindowEx(
WS_EX_APPWINDOW | WS_EX_WINDOWEDGE,
g_windowClass,
"Title Window",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT, winWidth, winHeight,
NULL, NULL, hInstance, NULL);
if(hwnd == NULL)
{
MessageBox(NULL, "Window Creation Failed", "Error", MB_ICONEXCLAMATION | MB_OK);
return 0;
}
HDC hdc;
if(!(hdc = GetDC(hwnd)))
printf("GetDC failed\n");
//* old set pixel format
// set pixel format
PIXELFORMATDESCRIPTOR pfd =
{
sizeof(PIXELFORMATDESCRIPTOR),
1,
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER, // flags
PFD_TYPE_RGBA, // rgba framebuffer
32, // 32 bit color depth
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
24, 8, // 24 bit depth, 8 bit stencil
0, // # of aux buffers
PFD_MAIN_PLANE,
0, 0, 0, 0
};
// get available matching pixel format
int iPixelFormat;
if(!(iPixelFormat = ChoosePixelFormat(hdc, &pfd)))
printf("ChoosePixelFormat failed\n");
//*/
// assign pixel format to device context
if(!(SetPixelFormat(hdc, iPixelFormat, &pfd)))
printf("SetPixelFormat failed\n");
// create opengl context
HGLRC context;
if(!(context = wglCreateContext(hdc)))
printf("wglCreateContext failed\n");
if(!(wglMakeCurrent(hdc, context)))
printf("wglMakeCurrent failed\n");
// Now we want an updated pixel format and context
//*
PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
if(!wglChoosePixelFormatARB)
{
printf("wgl choose pixel format not supported?\n");
}
PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
if(!wglCreateContextAttribsARB)
printf("wglCreateContextAttribsARB undefined\n");
// using wglchoosepixelformat
const int attribList[] =
{
WGL_DRAW_TO_WINDOW_ARB, GL_TRUE,
WGL_SUPPORT_OPENGL_ARB, GL_TRUE,
WGL_ACCELERATION_ARB, WGL_FULL_ACCELERATION_ARB,
WGL_DOUBLE_BUFFER_ARB, GL_TRUE,
WGL_PIXEL_TYPE_ARB, WGL_TYPE_RGBA_ARB,
WGL_DEPTH_BITS_ARB, 24,
WGL_STENCIL_BITS_ARB, 8,
0,
};
int ePixelFormat;
unsigned int numFormats;
int valid = wglChoosePixelFormatARB(hdc, attribList, NULL, 1, &ePixelFormat, &numFormats);
if (valid && numFormats >= 1)
{
// we have a valid format
printf("we have a valid format\n");
} else {
printf("wglchoosepixel format didn't find a valid format\n");
}
// if we found a valid format, it is stored in ePixelFormat
// delete old rendering context
int delc = wglDeleteContext(context);
if (!delc)
printf("failed to delete old context\n");
// release device context
ReleaseDC(hwnd, hdc);
// destroy the window
DestroyWindow(hwnd);
while(PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE))
{
// get rid of the first destroy message so it doesn't screw up later
int temp = GetMessage(&msg, NULL, 0, 0);
if (temp != 0) {
printf("whoops, something other than destroy was in message queue after destroywindow: (%i)\n", temp);
} else {
printf("disposed of the first destory message\n");
}
}
// now, make it all again
hwnd = CreateWindowEx(
WS_EX_APPWINDOW | WS_EX_WINDOWEDGE,
g_windowClass,
"Title Window",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT, winWidth, winHeight,
NULL, NULL, hInstance, NULL);
// get the new device context
if(!(hdc = GetDC(hwnd)))
printf("second GetDC failed\n");
// set the pixel format the the extended one we got earlier
if (!SetPixelFormat(hdc, ePixelFormat, &pfd))
{
// failed to set pixel format
printf("failed to set extended pixel format\n");
}
// create extended opengl rendering context
int contextAttribs[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, 4,
WGL_CONTEXT_MINOR_VERSION_ARB, 2,
WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
//WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
0
};
if(!(context = wglCreateContextAttribsARB(hdc, NULL, contextAttribs)))
printf("second wglCreateContext failed\n");
if(!(wglMakeCurrent(hdc, context)))
printf("second wglMakeCurrent failed\n");
//*/
ShowWindow(hwnd, nCmdShow);
SetForegroundWindow(hwnd);
SetFocus(hwnd);
UpdateWindow(hwnd);
// set initial mouse position
POINT p;
if(GetCursorPos(&p)) {
if (ScreenToClient(hwnd, &p)) {
g_mouse_x = p.x;
g_mouse_y = p.y;
} else {
printf("ScreenToClient failed\n");
}
} else {
printf("GetCursorPos failed\n");
}
initGL(winWidth, winHeight);
printf("finished init, starting main loop\n");
g_hwnd = hwnd;
g_current_millis = currentMillis();
// main loop
while(g_running)
{
while(PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE))
{
int temp = GetMessage(&msg, NULL, 0, 0);
if(temp > 0)
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
{
printf("getmessage returned nonpositive: (%i)\n", temp);
g_running = false;
break;
}
}
long long current_millis = currentMillis();
//printf("current_millis is %i\n", current_millis);
// wouldn't current_millis be bigger?
float dt = g_current_millis - current_millis;
g_current_millis = current_millis;
// draw stuff
renderGL();
update(dt);
g_running &= !keys[frontKeyBuffer][VK_ESCAPE];
swapKeyBuffers();
SwapBuffers(hdc);
}
printf("quitting\n");
//FreeConsole();
// delete the rendering context
wglMakeCurrent(NULL, NULL);
wglDeleteContext(context);
return msg.wParam;
}
void initPtrToWglFunctions(){
HWND hwnd = createDummyWindow();
HDC dpy = GetDC(hwnd);
if(!hwnd || !dpy){
fprintf(stderr,"error while getting DC\n");
return;
}
EGLNativeContextType ctx = NULL;
PIXELFORMATDESCRIPTOR pfd = {
sizeof(PIXELFORMATDESCRIPTOR), // size of this pfd
1, // version number
PFD_DRAW_TO_WINDOW | // support window
PFD_SUPPORT_OPENGL | // support OpenGL
PFD_DOUBLEBUFFER, // double buffered
PFD_TYPE_RGBA, // RGBA type
24, // 24-bit color depth
0, 0, 0, 0, 0, 0, // color bits ignored
0, // no alpha buffer
0, // shift bit ignored
0, // no accumulation buffer
0, 0, 0, 0, // accum bits ignored
32, // 32-bit z-buffer
0, // no stencil buffer
0, // no auxiliary buffer
PFD_MAIN_PLANE, // main layer
0, // reserved
0, 0, 0 // layer masks ignored
};
int iPixelFormat,err;
iPixelFormat = ChoosePixelFormat(dpy, &pfd);
if(iPixelFormat < 0){
fprintf(stderr,"error while choosing pixel format\n");
return;
}
if(!SetPixelFormat(dpy,iPixelFormat,&pfd)){
int err = GetLastError();
fprintf(stderr,"error while setting pixel format 0x%x\n",err);
return;
}
ctx = wglCreateContext(dpy);
if(!ctx){
err = GetLastError();
fprintf(stderr,"error while creating dummy context %d\n",err);
}
if(!wglMakeCurrent(dpy,ctx)){
err = GetLastError();
fprintf(stderr,"error while making dummy context current %d\n",err);
}
if(!s_wglExtProcs){
s_wglExtProcs = new WglExtProcs();
s_wglExtProcs->wglGetPixelFormatAttribivARB = (PFNWGLGETPIXELFORMATATTRIBIVARBPROC)wglGetExtentionsProcAddress(dpy,"WGL_ARB_pixel_format","wglGetPixelFormatAttribivARB");
s_wglExtProcs->wglChoosePixelFormatARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetExtentionsProcAddress(dpy,"WGL_ARB_pixel_format","wglChoosePixelFormatARB");
s_wglExtProcs->wglCreatePbufferARB = (PFNWGLCREATEPBUFFERARBPROC)wglGetExtentionsProcAddress(dpy,"WGL_ARB_pbuffer","wglCreatePbufferARB");
s_wglExtProcs->wglReleasePbufferDCARB = (PFNWGLRELEASEPBUFFERDCARBPROC)wglGetExtentionsProcAddress(dpy,"WGL_ARB_pbuffer","wglReleasePbufferDCARB");
s_wglExtProcs->wglDestroyPbufferARB = (PFNWGLDESTROYPBUFFERARBPROC)wglGetExtentionsProcAddress(dpy,"WGL_ARB_pbuffer","wglDestroyPbufferARB");
s_wglExtProcs->wglGetPbufferDCARB = (PFNWGLGETPBUFFERDCARBPROC)wglGetExtentionsProcAddress(dpy,"WGL_ARB_pbuffer","wglGetPbufferDCARB");
s_wglExtProcs->wglMakeContextCurrentARB = (PFNWGLMAKECONTEXTCURRENTARBPROC)wglGetExtentionsProcAddress(dpy,"WGL_ARB_make_current_read","wglMakeContextCurrentARB");
s_wglExtProcs->wglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)wglGetExtentionsProcAddress(dpy,"WGL_EXT_swap_control","wglSwapIntervalEXT");
}
wglMakeCurrent(dpy,NULL);
DestroyWindow(hwnd);
DeleteDC(dpy);
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)
{
WNDCLASS wc;
wc.style = CS_HREDRAW | CS_VREDRAW |CS_OWNDC;
wc.lpfnWndProc = (WNDPROC)WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(PINGIEL_ICON));
wc.hCursor = 0;
wc.hbrBackground = 0;
wc.lpszMenuName = MAKEINTRESOURCE(PINGIEL_MENU);
wc.lpszClassName = "PingielClass";
if (!RegisterClass(&wc))
return false;
MessageBox(0, "hejo", "okienko", MB_OK);
int horizontal=GetSystemMetrics(16);
int vertical = GetSystemMetrics(17);
HWND hWnd = CreateWindow(wc.lpszClassName, "Okno", WS_OVERLAPPED | WS_MINIMIZEBOX | WS_SYSMENU, 0, 0,horizontal, vertical, NULL, NULL, hInstance, NULL);
if (hWnd == NULL)
return false;
static PIXELFORMATDESCRIPTOR pfd= //struktura formatu pixeli
{
sizeof(PIXELFORMATDESCRIPTOR),
1,//numerwersji
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
PFD_TYPE_RGBA,
16,//tryb koloru
0,0,0,0,0,0,//ignorowane bity koloru
0,//brak kanalu alpha
0,//ignorowanie rpzesuniecia
0,//brak akumulatora
0,0,0,0,//ignorowane przesuniecie akumulatora
16,//16bitowy bufor glebokosci
0,//no stencil buffer
0,//no auxiliary buffer
PFD_MAIN_PLANE,//glowna warstwa rysowania
0,//zarezerwowane
0,0,0//ignorowanie warstwy maski
};
HDC hDC = NULL;//kontekst urzadzenia
HGLRC hRC = NULL;//kontekst renderowania
GLuint PixelFormat;//styl pixeli
if (!(hDC = GetDC(hWnd))) return 0;//pobranie kontekstu
if (!(PixelFormat = ChoosePixelFormat(hDC, &pfd)))return 0;//wyszukiwanie formatu pixeli
if (!SetPixelFormat(hDC, PixelFormat, &pfd)) return 0;//ust. formatu pixeli
if (!(hRC = wglCreateContext(hDC)))return 0;//pobvranie kontekstu renderowania
if (!wglMakeCurrent(hDC, hRC))return 0; //uruchomienie kontekstu renderowania
ShowWindow(hWnd, iCmdShow);
SetForegroundWindow(hWnd);
SetFocus(hWnd);
if (!InitGL()) // Initialize Our Newly Created GL Window
{
// Reset The Display
MessageBox(NULL, "Initialization Failed.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
BOOL done = false;
MSG msg;
while (!done)
{
if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))//czy jest zdarzenie do obslugi?
{
if (msg.message == WM_QUIT) done = TRUE;
else
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
else
{
DrawGLScene();
SwapBuffers(hDC);
}
}
if (hRC)
{
wglMakeCurrent(NULL, NULL);//usuw. kontekstu rend.
wglDeleteContext(hRC);//usuw. kontekstu rend.
hRC = NULL;//wyzerowanie kontekstu rend.
}
if (hDC && !ReleaseDC(hWnd, hDC)) { hDC = NULL; }//wyzerowanie kontekstu
if (hWnd&& !DestroyWindow(hWnd)){ hWnd = NULL; }//wyzerowanie uchwytu okienka
return 0;
}
EF_Drawable ef_video_new_drawable(int width,
int height,
int full_screen,
EF_Display display)
{
struct drawable *drawable = malloc(sizeof(struct drawable));
DWORD window_style = WS_CAPTION | WS_POPUPWINDOW | WS_VISIBLE;
RECT window_rect;
window_rect.top = 0;
window_rect.left = 0;
window_rect.bottom = height;
window_rect.right = width;
AdjustWindowRect(&window_rect, window_style, 0);
int adjusted_width = window_rect.right - window_rect.left;
int adjusted_height = window_rect.bottom - window_rect.top;
utf16 *title16 = utf8_to_utf16(ef_internal_application_name());
drawable->window = CreateWindowW(L"Emerald Frame",
title16,
window_style,
CW_USEDEFAULT, CW_USEDEFAULT,
adjusted_width, adjusted_height,
NULL, NULL, hInstance, NULL);
free(title16);
TRACKMOUSEEVENT trackmouseevent;
trackmouseevent.cbSize = sizeof(trackmouseevent);
trackmouseevent.dwFlags = TME_LEAVE;
trackmouseevent.hwndTrack = drawable->window;
trackmouseevent.dwHoverTime = 0;
TrackMouseEvent(&trackmouseevent);
drawable->device_context = GetDC(drawable->window);
PIXELFORMATDESCRIPTOR pixel_format;
ZeroMemory(&pixel_format, sizeof(pixel_format));
pixel_format.nSize = sizeof(pixel_format);
pixel_format.nVersion = 1;
pixel_format.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pixel_format.iPixelType = PFD_TYPE_RGBA;
pixel_format.cColorBits = 24;
pixel_format.cDepthBits = 16;
pixel_format.iLayerType = PFD_MAIN_PLANE;
int internal_pixel_format = ChoosePixelFormat(drawable->device_context,
&pixel_format);
SetPixelFormat(drawable->device_context, internal_pixel_format, &pixel_format);
drawable->rendering_context = wglCreateContext(drawable->device_context);
n_drawables++;
all_drawables = realloc(all_drawables, sizeof(struct drawable *) * n_drawables);
all_drawables[n_drawables-1] = drawable;
drawable->draw_callback = NULL;
drawable->draw_callback_context = NULL;
drawable->key_down_callback = NULL;
drawable->key_down_callback_context = NULL;
drawable->key_up_callback = NULL;
drawable->key_up_callback_context = NULL;
drawable->mouse_down_callback = NULL;
drawable->mouse_down_callback_context = NULL;
drawable->mouse_up_callback = NULL;
drawable->mouse_up_callback_context = NULL;
drawable->mouse_move_callback = NULL;
drawable->mouse_move_callback_context = NULL;
drawable->mouse_enter_callback = NULL;
drawable->mouse_enter_callback_context = NULL;
drawable->mouse_exit_callback = NULL;
drawable->mouse_exit_callback_context = NULL;
return (EF_Drawable) drawable;
}