C++ (Cpp) CGLGetSurfaceの例

コード例 #1

ファイル: glstate_images.cpp プロジェクト: RAOF/apitrace

static bool
getDrawableBounds(GLint *width, GLint *height) {
#if defined(__linux__)
    if (dlsym(RTLD_DEFAULT, "eglGetCurrentContext")) {
        EGLContext currentContext = eglGetCurrentContext();
        if (currentContext == EGL_NO_CONTEXT) {
            return false;
        }

        EGLSurface currentSurface = eglGetCurrentSurface(EGL_DRAW);
        if (currentSurface == EGL_NO_SURFACE) {
            return false;
        }

        EGLDisplay currentDisplay = eglGetCurrentDisplay();
        if (currentDisplay == EGL_NO_DISPLAY) {
            return false;
        }

        if (!eglQuerySurface(currentDisplay, currentSurface, EGL_WIDTH, width) ||
            !eglQuerySurface(currentDisplay, currentSurface, EGL_HEIGHT, height)) {
            return false;
        }

        return true;
    }
#endif

#if defined(_WIN32)

    HDC hDC = wglGetCurrentDC();
    if (!hDC) {
        return false;
    }

    HWND hWnd = WindowFromDC(hDC);
    RECT rect;

    if (!GetClientRect(hWnd, &rect)) {
       return false;
    }

    *width  = rect.right  - rect.left;
    *height = rect.bottom - rect.top;
    return true;

#elif defined(__APPLE__)

    CGLContextObj ctx = CGLGetCurrentContext();
    if (ctx == NULL) {
        return false;
    }

    CGSConnectionID cid;
    CGSWindowID wid;
    CGSSurfaceID sid;

    if (CGLGetSurface(ctx, &cid, &wid, &sid) != kCGLNoError) {
        return false;
    }

    CGRect rect;

    if (CGSGetSurfaceBounds(cid, wid, sid, &rect) != 0) {
        return false;
    }

    *width = rect.size.width;
    *height = rect.size.height;
    return true;

#elif defined(HAVE_X11)

    Display *display;
    Drawable drawable;
    Window root;
    int x, y;
    unsigned int w, h, bw, depth;

    display = glXGetCurrentDisplay();
    if (!display) {
        return false;
    }

    drawable = glXGetCurrentDrawable();
    if (drawable == None) {
        return false;
    }

    if (!XGetGeometry(display, drawable, &root, &x, &y, &w, &h, &bw, &depth)) {
        return false;
    }

    *width = w;
    *height = h;
    return true;

#else

    return false;

#endif
}

コード例 #2

ファイル: glstate.cpp プロジェクト: pzick/apitrace

static bool
getDrawableBounds(GLint *width, GLint *height) {
#if defined(_WIN32)

    HDC hDC = wglGetCurrentDC();
    if (!hDC) {
        return false;
    }

    HWND hWnd = WindowFromDC(hDC);
    RECT rect;

    if (!GetClientRect(hWnd, &rect)) {
       return false;
    }

    *width  = rect.right  - rect.left;
    *height = rect.bottom - rect.top;

#elif defined(__APPLE__)

    CGLContextObj ctx = CGLGetCurrentContext();
    if (ctx == NULL) {
        return false;
    }

    CGSConnectionID cid;
    CGSWindowID wid;
    CGSSurfaceID sid;

    if (CGLGetSurface(ctx, &cid, &wid, &sid) != kCGLNoError) {
        return false;
    }

    CGRect rect;

    if (CGSGetSurfaceBounds(cid, wid, sid, &rect) != 0) {
        return false;
    }

    *width = rect.size.width;
    *height = rect.size.height;

#else

    Display *display;
    Drawable drawable;
    Window root;
    int x, y;
    unsigned int w, h, bw, depth;

    display = glXGetCurrentDisplay();
    if (!display) {
        return false;
    }

    drawable = glXGetCurrentDrawable();
    if (drawable == None) {
        return false;
    }

    if (!XGetGeometry(display, drawable, &root, &x, &y, &w, &h, &bw, &depth)) {
        return false;
    }

    *width = w;
    *height = h;

#endif

    return true;
}