Exemplo n.º 1
0
already_AddRefed<GLContext>
GLContextProviderGLX::CreateForNativePixmapSurface(gfxASurface *aSurface)
{
    if (!sGLXLibrary.EnsureInitialized()) {
        return nsnull;
    }

    if (aSurface->GetType() != gfxASurface::SurfaceTypeXlib) {
        NS_WARNING("GLContextProviderGLX::CreateForNativePixmapSurface called with non-Xlib surface");
        return nsnull;
    }

    nsAutoTArray<int, 20> attribs;

#define A1_(_x)  do { attribs.AppendElement(_x); } while(0)
#define A2_(_x,_y)  do {                                                \
        attribs.AppendElement(_x);                                      \
        attribs.AppendElement(_y);                                      \
    } while(0)

    A2_(GLX_DOUBLEBUFFER, False);
    A2_(GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT);
    A1_(0);

    int numFormats;
    Display *display = DefaultXDisplay();
    int xscreen = DefaultScreen(display);

    ScopedXFree<GLXFBConfig> cfg(sGLXLibrary.xChooseFBConfig(display,
                                                             xscreen,
                                                             attribs.Elements(),
                                                             &numFormats));
    if (!cfg) {
        return nsnull;
    }
    NS_ASSERTION(numFormats > 0,
                 "glXChooseFBConfig() failed to match our requested format and violated its spec (!)");

    gfxXlibSurface *xs = static_cast<gfxXlibSurface*>(aSurface);

    GLXPixmap glxpixmap = sGLXLibrary.xCreatePixmap(display,
                                                    cfg[0],
                                                    xs->XDrawable(),
                                                    NULL);

    nsRefPtr<GLContextGLX> glContext = GLContextGLX::CreateGLContext(ContextFormat(ContextFormat::BasicRGB24),
                                                                     display,
                                                                     glxpixmap,
                                                                     cfg[0],
                                                                     NULL,
                                                                     NULL,
                                                                     PR_FALSE,
                                                                     xs);
    
    if (!glContext->Init()) {
        return nsnull;
    }

    return glContext.forget();
}
already_AddRefed<GLContext>
GLContextProviderGLX::CreateForWindow(nsIWidget *aWidget)
{
    if (!sGLXLibrary.EnsureInitialized()) {
        return nullptr;
    }

    // Currently, we take whatever Visual the window already has, and
    // try to create an fbconfig for that visual.  This isn't
    // necessarily what we want in the long run; an fbconfig may not
    // be available for the existing visual, or if it is, the GL
    // performance might be suboptimal.  But using the existing visual
    // is a relatively safe intermediate step.

    Display *display = (Display*)aWidget->GetNativeData(NS_NATIVE_DISPLAY);
    if (!display) {
        NS_ERROR("X Display required for GLX Context provider");
        return nullptr;
    }

    int xscreen = DefaultScreen(display);
    Window window = GET_NATIVE_WINDOW(aWidget);

    int numConfigs;
    ScopedXFree<GLXFBConfig> cfgs;
    if (sGLXLibrary.IsATI() ||
        !sGLXLibrary.GLXVersionCheck(1, 3)) {
        const int attribs[] = {
            LOCAL_GLX_DOUBLEBUFFER, False,
            0
        };
        cfgs = sGLXLibrary.xChooseFBConfig(display,
                                           xscreen,
                                           attribs,
                                           &numConfigs);
    } else {
        cfgs = sGLXLibrary.xGetFBConfigs(display,
                                         xscreen,
                                         &numConfigs);
    }

    if (!cfgs) {
        NS_WARNING("[GLX] glXGetFBConfigs() failed");
        return nullptr;
    }
    NS_ASSERTION(numConfigs > 0, "No FBConfigs found!");

    // XXX the visual ID is almost certainly the LOCAL_GLX_FBCONFIG_ID, so
    // we could probably do this first and replace the glXGetFBConfigs
    // with glXChooseConfigs.  Docs are sparklingly clear as always.
    XWindowAttributes widgetAttrs;
    if (!XGetWindowAttributes(display, window, &widgetAttrs)) {
        NS_WARNING("[GLX] XGetWindowAttributes() failed");
        return nullptr;
    }
    const VisualID widgetVisualID = XVisualIDFromVisual(widgetAttrs.visual);
#ifdef DEBUG
    printf("[GLX] widget has VisualID 0x%lx\n", widgetVisualID);
#endif

    int matchIndex = -1;

    for (int i = 0; i < numConfigs; i++) {
        int visid = None;
        sGLXLibrary.xGetFBConfigAttrib(display, cfgs[i], LOCAL_GLX_VISUAL_ID, &visid);
        if (!visid) {
            continue;
        }
        if (sGLXLibrary.IsATI()) {
            int depth;
            Visual *visual;
            FindVisualAndDepth(display, visid, &visual, &depth);
            if (depth == widgetAttrs.depth &&
                AreCompatibleVisuals(widgetAttrs.visual, visual)) {
                matchIndex = i;
                break;
            }
        } else {
            if (widgetVisualID == static_cast<VisualID>(visid)) {
                matchIndex = i;
                break;
            }
        }
    }

    if (matchIndex == -1) {
        NS_WARNING("[GLX] Couldn't find a FBConfig matching widget visual");
        return nullptr;
    }

    GLContextGLX *shareContext = GetGlobalContextGLX();

    SurfaceCaps caps = SurfaceCaps::Any();
    nsRefPtr<GLContextGLX> glContext = GLContextGLX::CreateGLContext(caps,
                                                                     shareContext,
                                                                     false,
                                                                     display,
                                                                     window,
                                                                     cfgs[matchIndex],
                                                                     false);

    return glContext.forget();
}
Exemplo n.º 3
0
bool
GLContextGLX::FindFBConfigForWindow(Display* display, int screen, Window window,
                                    ScopedXFree<GLXFBConfig>* const out_scopedConfigArr,
                                    GLXFBConfig* const out_config, int* const out_visid)
{
    ScopedXFree<GLXFBConfig>& cfgs = *out_scopedConfigArr;
    int numConfigs;
    if (sGLXLibrary.IsATI() ||
        !sGLXLibrary.GLXVersionCheck(1, 3)) {
        const int attribs[] = {
            LOCAL_GLX_DOUBLEBUFFER, False,
            0
        };
        cfgs = sGLXLibrary.xChooseFBConfig(display,
                                           screen,
                                           attribs,
                                           &numConfigs);
    } else {
        cfgs = sGLXLibrary.xGetFBConfigs(display,
                                         screen,
                                         &numConfigs);
    }

    if (!cfgs) {
        NS_WARNING("[GLX] glXGetFBConfigs() failed");
        return false;
    }
    NS_ASSERTION(numConfigs > 0, "No FBConfigs found!");

    // XXX the visual ID is almost certainly the LOCAL_GLX_FBCONFIG_ID, so
    // we could probably do this first and replace the glXGetFBConfigs
    // with glXChooseConfigs.  Docs are sparklingly clear as always.
    XWindowAttributes windowAttrs;
    if (!XGetWindowAttributes(display, window, &windowAttrs)) {
        NS_WARNING("[GLX] XGetWindowAttributes() failed");
        return false;
    }
    const VisualID windowVisualID = XVisualIDFromVisual(windowAttrs.visual);
#ifdef DEBUG
    printf("[GLX] window %lx has VisualID 0x%lx\n", window, windowVisualID);
#endif

    for (int i = 0; i < numConfigs; i++) {
        int visid = None;
        sGLXLibrary.xGetFBConfigAttrib(display, cfgs[i], LOCAL_GLX_VISUAL_ID, &visid);
        if (!visid) {
            continue;
        }
        if (sGLXLibrary.IsATI()) {
            int depth;
            Visual* visual;
            FindVisualAndDepth(display, visid, &visual, &depth);
            if (depth == windowAttrs.depth &&
                AreCompatibleVisuals(windowAttrs.visual, visual)) {
                *out_config = cfgs[i];
                *out_visid = visid;
                return true;
            }
        } else {
            if (windowVisualID == static_cast<VisualID>(visid)) {
                *out_config = cfgs[i];
                *out_visid = visid;
                return true;
            }
        }
    }

    NS_WARNING("[GLX] Couldn't find a FBConfig matching window visual");
    return false;
}
Exemplo n.º 4
0
static already_AddRefed<GLContextGLX>
CreateOffscreenPixmapContext(const gfxIntSize& aSize,
                             const ContextFormat& aFormat,
                             PRBool aShare)
{
    if (!sGLXLibrary.EnsureInitialized()) {
        return nsnull;
    }

    Display *display = DefaultXDisplay();
    int xscreen = DefaultScreen(display);

    int attribs[] = {
        GLX_DOUBLEBUFFER, False,
        GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT,
        GLX_X_RENDERABLE, True,
        GLX_RED_SIZE, 1,
        GLX_GREEN_SIZE, 1,
        GLX_BLUE_SIZE, 1,
        GLX_ALPHA_SIZE, 0,
        GLX_DEPTH_SIZE, 0,
        0
    };
    int numConfigs = 0;

    ScopedXFree<GLXFBConfig> cfgs;
    cfgs = sGLXLibrary.xChooseFBConfig(display,
                                       xscreen,
                                       attribs,
                                       &numConfigs);
    if (!cfgs) {
        return nsnull;
    }

    NS_ASSERTION(numConfigs > 0,
                 "glXChooseFBConfig() failed to match our requested format and violated its spec (!)");

    ScopedXFree<XVisualInfo> vinfo;
    int chosenIndex;

    for (int i = 0; i < numConfigs; ++i) {
        int dtype, visid;

        if (sGLXLibrary.xGetFBConfigAttrib(display, cfgs[i], GLX_DRAWABLE_TYPE, &dtype) != Success
            || !(dtype & GLX_PIXMAP_BIT))
        {
            continue;
        }
        if (sGLXLibrary.xGetFBConfigAttrib(display, cfgs[i], GLX_VISUAL_ID, &visid) != Success
            || visid == 0)
        {
            continue;
        }

        vinfo = sGLXLibrary.xGetVisualFromFBConfig(display, cfgs[i]);

        if (vinfo) {
            chosenIndex = i;
            break;
        }
    }

    if (!vinfo) {
        NS_WARNING("glXChooseFBConfig() didn't give us any configs with visuals!");
        return nsnull;
    }

    nsRefPtr<gfxXlibSurface> xsurface = gfxXlibSurface::Create(DefaultScreenOfDisplay(display),
                                                               vinfo->visual,
                                                               gfxIntSize(16, 16));
    if (xsurface->CairoStatus() != 0) {
        return nsnull;
    }

   
    GLXPixmap glxpixmap = sGLXLibrary.xCreatePixmap(display,
                                                    cfgs[chosenIndex],
                                                    xsurface->XDrawable(),
                                                    NULL);
    if (glxpixmap == 0) {
        return nsnull;
    }

    GLContextGLX *shareContext = aShare ? GetGlobalContextGLX() : nsnull;

    nsRefPtr<GLContextGLX> glContext = GLContextGLX::CreateGLContext(aFormat,
                                                                     display,
                                                                     glxpixmap,
                                                                     cfgs[chosenIndex],
                                                                     vinfo,
                                                                     shareContext,
                                                                     PR_TRUE,
                                                                     xsurface);

    return glContext.forget();
}
Exemplo n.º 5
0
already_AddRefed<GLContext>
GLContextProviderGLX::CreateForWindow(nsIWidget *aWidget)
{
    if (!sGLXLibrary.EnsureInitialized()) {
        return nsnull;
    }

    // Currently, we take whatever Visual the window already has, and
    // try to create an fbconfig for that visual.  This isn't
    // necessarily what we want in the long run; an fbconfig may not
    // be available for the existing visual, or if it is, the GL
    // performance might be suboptimal.  But using the existing visual
    // is a relatively safe intermediate step.

    Display *display = (Display*)aWidget->GetNativeData(NS_NATIVE_DISPLAY); 
    int xscreen = DefaultScreen(display);
    Window window = GET_NATIVE_WINDOW(aWidget);

    int numConfigs;
    ScopedXFree<GLXFBConfig> cfgs;
    if (gIsATI) {
        const int attribs[] = {
            GLX_DOUBLEBUFFER, False,
            0
        };
        cfgs = sGLXLibrary.xChooseFBConfig(display,
                                           xscreen,
                                           attribs,
                                           &numConfigs);
    } else {
        cfgs = sGLXLibrary.xGetFBConfigs(display,
                                         xscreen,
                                         &numConfigs);
    }

    if (!cfgs) {
        NS_WARNING("[GLX] glXGetFBConfigs() failed");
        return nsnull;
    }
    NS_ASSERTION(numConfigs > 0, "No FBConfigs found!");

    // XXX the visual ID is almost certainly the GLX_FBCONFIG_ID, so
    // we could probably do this first and replace the glXGetFBConfigs
    // with glXChooseConfigs.  Docs are sparklingly clear as always.
    XWindowAttributes widgetAttrs;
    if (!XGetWindowAttributes(display, window, &widgetAttrs)) {
        NS_WARNING("[GLX] XGetWindowAttributes() failed");
        XFree(cfgs);
        return nsnull;
    }
    const VisualID widgetVisualID = XVisualIDFromVisual(widgetAttrs.visual);
#ifdef DEBUG
    printf("[GLX] widget has VisualID 0x%lx\n", widgetVisualID);
#endif

    ScopedXFree<XVisualInfo> vi;
    if (gIsATI) {
        XVisualInfo vinfo_template;
        int nvisuals;
        vinfo_template.visual   = widgetAttrs.visual;
        vinfo_template.visualid = XVisualIDFromVisual(vinfo_template.visual);
        vinfo_template.depth    = widgetAttrs.depth;
        vinfo_template.screen   = xscreen;
        vi = XGetVisualInfo(display, VisualIDMask|VisualDepthMask|VisualScreenMask,
                            &vinfo_template, &nvisuals);
        NS_ASSERTION(vi && nvisuals == 1, "Could not locate unique matching XVisualInfo for Visual");
    }

    int matchIndex = -1;
    ScopedXFree<XVisualInfo> vinfo;

    for (int i = 0; i < numConfigs; i++) {
        vinfo = sGLXLibrary.xGetVisualFromFBConfig(display, cfgs[i]);
        if (!vinfo) {
            continue;
        }
        if (gIsATI) {
            if (AreCompatibleVisuals(vi, vinfo)) {
                matchIndex = i;
                break;
            }
        } else {
            if (widgetVisualID == vinfo->visualid) {
                matchIndex = i;
                break;
            }
        }
    }

    if (matchIndex == -1) {
        NS_WARNING("[GLX] Couldn't find a FBConfig matching widget visual");
        return nsnull;
    }

    GLContextGLX *shareContext = GetGlobalContextGLX();

    nsRefPtr<GLContextGLX> glContext = GLContextGLX::CreateGLContext(ContextFormat(ContextFormat::BasicRGB24),
                                                                     display,
                                                                     window,
                                                                     cfgs[matchIndex],
                                                                     vinfo,
                                                                     shareContext,
                                                                     PR_FALSE);
    return glContext.forget();
}