Exemple #1
0
StWinHandles::StWinHandles()
#ifdef _WIN32
: ThreadWnd(0),
  EventMsgThread(true),
  hWindow(NULL),
  hWindowGl(NULL),
  hWinTmp(NULL),
  myMKeyStop(GlobalAddAtom(MAKEINTATOM(VK_MEDIA_STOP))),
  myMKeyPlay(GlobalAddAtom(MAKEINTATOM(VK_MEDIA_PLAY_PAUSE))),
  myMKeyPrev(GlobalAddAtom(MAKEINTATOM(VK_MEDIA_PREV_TRACK))),
  myMKeyNext(GlobalAddAtom(MAKEINTATOM(VK_MEDIA_NEXT_TRACK))),
  ThreadGL(0),
  hDC(NULL) {
    //
#elif defined(__linux__)
: hWindow(0),
  hWindowGl(0),
  stXDisplay(),
  iconImage(0),
  iconShape(0),
  xDNDRequestType(None),
  xDNDSrcWindow(0),
  xDNDVersion(0),
  xrandrEventBase(0),
  isRecXRandrEvents(false) {
    //
#endif
}

StWinHandles::~StWinHandles() {
    close();
}

void StWinHandles::glSwap() {
#ifdef _WIN32
    if(hDC != NULL) {
        SwapBuffers(hDC);
    }
#elif defined(__linux__)
    if(!stXDisplay.isNull()
    && hRC->makeCurrent(hWindowGl)) { // if GL rendering context is bound to another drawable - we got BadMatch error
        glXSwapBuffers(stXDisplay->hDisplay, hWindowGl);
    }
#endif
}

bool StWinHandles::glMakeCurrent() {
#ifdef _WIN32
    if(hDC != NULL && !hRC.isNull()) {
        return hRC->isCurrent(hDC)
            || hRC->makeCurrent(hDC);
    }
#elif defined(__linux__)
    if(!stXDisplay.isNull() && !hRC.isNull()) {
        return hRC->makeCurrent(hWindowGl);
    }
#endif
    return false;
}

/**
 * Auxiliary macros.
 */
#define ST_GL_ERROR_CHECK(theTrueCondition, theErrCode, theErrDesc) \
    if(!(theTrueCondition)) { \
        stError(theErrDesc); \
        return theErrCode; \
    }

int StWinHandles::glCreateContext(StWinHandles*    theSlave,
                                  const StRectI_t& theRect,
                                  const int        theDepthSize,
                                  const bool       theIsQuadStereo,
                                  const bool       theDebugCtx) {
#ifdef _WIN32
    ThreadGL = StThread::getCurrentThreadId();
    ST_DEBUG_LOG("WinAPI, glCreateContext, ThreadGL= " + ThreadGL + ", ThreadWnd= " + ThreadWnd);
    hDC = GetDC(hWindowGl);
    ST_GL_ERROR_CHECK(hDC != NULL, STWIN_ERROR_WIN32_GLDC,
                      "WinAPI, Can't create Master GL Device Context");
    if(theSlave != NULL) {
        theSlave->ThreadGL = ThreadGL;
        theSlave->hDC      = GetDC(theSlave->hWindowGl);
        ST_GL_ERROR_CHECK(theSlave->hDC != NULL, STWIN_ERROR_WIN32_GLDC,
                          "WinAPI, Can't create Slave GL Device Context");
    }

    PIXELFORMATDESCRIPTOR aPixFrmtDesc = THE_PIXELFRMT_DOUBLE;
    aPixFrmtDesc.cDepthBits = (BYTE )theDepthSize;
    if(theIsQuadStereo) {
        aPixFrmtDesc.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_GDI | PFD_SUPPORT_OPENGL
                             | PFD_DOUBLEBUFFER | PFD_STEREO;
    }
    int aPixFrmtId = ChoosePixelFormat(hDC, &aPixFrmtDesc);
    ST_GL_ERROR_CHECK(aPixFrmtId != 0, STWIN_ERROR_WIN32_PIXELFORMATF,
                      "WinAPI, Can't find a suitable PixelFormat for Master");
    if(theSlave != NULL
    && ChoosePixelFormat(theSlave->hDC, &aPixFrmtDesc) != aPixFrmtId) {
        ST_ERROR_LOG("Slave window returns another pixel format! Try to ignore...");
    }

    if(theIsQuadStereo) {
        DescribePixelFormat(hDC, aPixFrmtId, sizeof(PIXELFORMATDESCRIPTOR), &aPixFrmtDesc);
        if((aPixFrmtDesc.dwFlags & PFD_STEREO) == 0) {
            ST_ERROR_LOG("WinAPI, Quad Buffered stereo not supported");
        } else {
            //bool isVistaPlus = StSys::isVistaPlus();
            //bool isWin8Plus  = StSys::isWin8Plus();
            ///myNeedsFullscr
        }
    }

    HMODULE aModule = GetModuleHandleW(NULL);
    hWinTmp = CreateWindowExW(WS_EX_TOOLWINDOW | WS_EX_WINDOWEDGE | WS_EX_NOACTIVATE,
                              ClassTmp.toCString(), L"TmpWnd",
                              WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_DISABLED,
                              theRect.left() + 2, theRect.top() + 2, 4, 4,
                              NULL, NULL, aModule, NULL);
    ST_GL_ERROR_CHECK(hWinTmp != NULL, STWIN_ERROR_WIN32_GLDC,
                      "WinAPI, Temporary window creation error");

    HDC aDevCtxTmp = GetDC(hWinTmp);
    ST_GL_ERROR_CHECK(aPixFrmtId != 0, STWIN_ERROR_WIN32_PIXELFORMATF,
                      "WinAPI, Can't find a suitable PixelFormat for Tmp");

    ST_GL_ERROR_CHECK(SetPixelFormat(aDevCtxTmp, aPixFrmtId, &aPixFrmtDesc),
                      STWIN_ERROR_WIN32_PIXELFORMATS, "WinAPI, Can't set the PixelFormat for Master");
    StWinGlrcH aRendCtxTmp = new StWinGlrc(aDevCtxTmp, NULL);
    ST_GL_ERROR_CHECK(aRendCtxTmp->isValid(),
                      STWIN_ERROR_WIN32_GLRC_CREATE, "WinAPI, Can't create GL Rendering Context");
    ST_GL_ERROR_CHECK(aRendCtxTmp->makeCurrent(aDevCtxTmp),
                      STWIN_ERROR_WIN32_GLRC_ACTIVATE, "WinAPI, Can't activate Tmp GL Rendering Context");

    StGLContext aCtx;
    ST_GL_ERROR_CHECK(aCtx.stglInit(),
                      STWIN_ERROR_WIN32_GLRC_ACTIVATE, "WinAPI, Broken Tmp GL Rendering Context");

    if(aCtx.extAll->wglChoosePixelFormatARB != NULL) {
        const int aPixAttribs[] = {
            WGL_DRAW_TO_WINDOW_ARB, GL_TRUE,
            WGL_SUPPORT_OPENGL_ARB, GL_TRUE,
            WGL_DOUBLE_BUFFER_ARB,  GL_TRUE,
            WGL_STEREO_ARB,         theIsQuadStereo ? GL_TRUE : GL_FALSE,
            WGL_PIXEL_TYPE_ARB,     WGL_TYPE_RGBA_ARB,
            //WGL_SAMPLE_BUFFERS_ARB, 1,
            //WGL_SAMPLES_ARB,        8,
            // WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB       0x00000004
            WGL_COLOR_BITS_ARB,     24,
            WGL_DEPTH_BITS_ARB,     theDepthSize,
            WGL_STENCIL_BITS_ARB,   0,
            0, 0,
        };
        unsigned int aFrmtsNb = 0;
        aCtx.extAll->wglChoosePixelFormatARB(hDC, aPixAttribs, NULL, 1, &aPixFrmtId, &aFrmtsNb);
    }
    ST_GL_ERROR_CHECK(SetPixelFormat(hDC, aPixFrmtId, &aPixFrmtDesc),
                      STWIN_ERROR_WIN32_PIXELFORMATS, "WinAPI, Can't set the PixelFormat for Master");
    ST_GL_ERROR_CHECK(theSlave == NULL || SetPixelFormat(theSlave->hDC, aPixFrmtId, &aPixFrmtDesc),
                      STWIN_ERROR_WIN32_PIXELFORMATS, "WinAPI, Can't set the PixelFormat for Slave");

    HGLRC aRendCtx = NULL;
    if(aCtx.extAll->wglCreateContextAttribsARB != NULL) {
        // Beware! NVIDIA drivers reject context creation when WGL_CONTEXT_PROFILE_MASK_ARB are specified
        // but not WGL_CONTEXT_MAJOR_VERSION_ARB/WGL_CONTEXT_MINOR_VERSION_ARB
        int aCtxAttribs[] = {
            //WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
            //WGL_CONTEXT_MINOR_VERSION_ARB, 2,
            //WGL_CONTEXT_PROFILE_MASK_ARB,  WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB, //WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
            WGL_CONTEXT_FLAGS_ARB,         theDebugCtx ? WGL_CONTEXT_DEBUG_BIT_ARB : 0,
            0, 0
        };

        aRendCtx = aCtx.extAll->wglCreateContextAttribsARB(hDC, NULL, aCtxAttribs);
    }

    aRendCtxTmp.nullify();
    destroyWindow(hWinTmp);

    hRC = new StWinGlrc(hDC, aRendCtx);
    ST_GL_ERROR_CHECK(hRC->isValid(),
                      STWIN_ERROR_WIN32_GLRC_CREATE, "WinAPI, Can't create GL Rendering Context");
    if(theSlave != NULL) {
        theSlave->hRC = hRC;
    }

    ST_GL_ERROR_CHECK(hRC->makeCurrent(hDC),
                      STWIN_ERROR_WIN32_GLRC_ACTIVATE, "WinAPI, Can't activate Master GL Rendering Context");
    return STWIN_INIT_SUCCESS;
#elif defined(__linux__)
    // create an OpenGL rendering context
    hRC = new StWinGlrc(stXDisplay, theDebugCtx);
    ST_GL_ERROR_CHECK(hRC->isValid(),
                      STWIN_ERROR_X_GLRC_CREATE, "GLX, could not create rendering context for Master");
    if(theSlave != NULL) {
        theSlave->hRC = hRC;

        // bind the rendering context to the window
        ST_GL_ERROR_CHECK(hRC->makeCurrent(theSlave->hWindowGl),
                          STWIN_ERROR_X_GLRC_CREATE, "GLX, Can't activate Slave GL Rendering Context");
    }

    // bind the rendering context to the window
    ST_GL_ERROR_CHECK(hRC->makeCurrent(hWindowGl),
                      STWIN_ERROR_X_GLRC_CREATE, "GLX, Can't activate Master GL Rendering Context");
    return STWIN_INIT_SUCCESS;
#endif
}