Example #1
0
void _glfwPlatformFocusWindow(_GLFWwindow* window)
{
    _glfwInputError(GLFW_PLATFORM_ERROR,
                    "Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
Example #2
0
int _glfwPlatformWindowMaximized(_GLFWwindow* window)
{
    _glfwInputError(GLFW_PLATFORM_ERROR,
                    "Mir: Unsupported function %s", __PRETTY_FUNCTION__);
    return GLFW_FALSE;
}
Example #3
0
void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window, int numer, int denom)
{
    _glfwInputError(GLFW_PLATFORM_ERROR,
                    "Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
Example #4
0
void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos)
{
    _glfwInputError(GLFW_PLATFORM_ERROR,
                    "Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
Example #5
0
// Return a list of available and usable framebuffer configs
//
static int choosePixelFormat(_GLFWwindow* window, const _GLFWfbconfig* desired)
{
    _GLFWfbconfig* usableConfigs;
    const _GLFWfbconfig* closest;
    int i, pixelFormat, nativeCount, usableCount;

    if (_glfw.wgl.ARB_pixel_format)
    {
        nativeCount = getPixelFormatAttrib(window,
                                           1,
                                           WGL_NUMBER_PIXEL_FORMATS_ARB);
    }
    else
    {
        nativeCount = DescribePixelFormat(window->context.wgl.dc,
                                          1,
                                          sizeof(PIXELFORMATDESCRIPTOR),
                                          NULL);
    }

    usableConfigs = (_GLFWfbconfig*)calloc(nativeCount, sizeof(_GLFWfbconfig));
    usableCount = 0;

    for (i = 0;  i < nativeCount;  i++)
    {
        const int n = i + 1;
        _GLFWfbconfig* u = usableConfigs + usableCount;

        if (_glfw.wgl.ARB_pixel_format)
        {
            // Get pixel format attributes through "modern" extension

            if (!getPixelFormatAttrib(window, n, WGL_SUPPORT_OPENGL_ARB) ||
                !getPixelFormatAttrib(window, n, WGL_DRAW_TO_WINDOW_ARB))
            {
                continue;
            }

            if (getPixelFormatAttrib(window, n, WGL_PIXEL_TYPE_ARB) !=
                WGL_TYPE_RGBA_ARB)
            {
                continue;
            }

            if (getPixelFormatAttrib(window, n, WGL_ACCELERATION_ARB) ==
                 WGL_NO_ACCELERATION_ARB)
            {
                continue;
            }

            u->redBits = getPixelFormatAttrib(window, n, WGL_RED_BITS_ARB);
            u->greenBits = getPixelFormatAttrib(window, n, WGL_GREEN_BITS_ARB);
            u->blueBits = getPixelFormatAttrib(window, n, WGL_BLUE_BITS_ARB);
            u->alphaBits = getPixelFormatAttrib(window, n, WGL_ALPHA_BITS_ARB);

            u->depthBits = getPixelFormatAttrib(window, n, WGL_DEPTH_BITS_ARB);
            u->stencilBits = getPixelFormatAttrib(window, n, WGL_STENCIL_BITS_ARB);

            u->accumRedBits = getPixelFormatAttrib(window, n, WGL_ACCUM_RED_BITS_ARB);
            u->accumGreenBits = getPixelFormatAttrib(window, n, WGL_ACCUM_GREEN_BITS_ARB);
            u->accumBlueBits = getPixelFormatAttrib(window, n, WGL_ACCUM_BLUE_BITS_ARB);
            u->accumAlphaBits = getPixelFormatAttrib(window, n, WGL_ACCUM_ALPHA_BITS_ARB);

            u->auxBuffers = getPixelFormatAttrib(window, n, WGL_AUX_BUFFERS_ARB);

            if (getPixelFormatAttrib(window, n, WGL_STEREO_ARB))
                u->stereo = GLFW_TRUE;
            if (getPixelFormatAttrib(window, n, WGL_DOUBLE_BUFFER_ARB))
                u->doublebuffer = GLFW_TRUE;

            if (_glfw.wgl.ARB_multisample)
                u->samples = getPixelFormatAttrib(window, n, WGL_SAMPLES_ARB);

            if (_glfw.wgl.ARB_framebuffer_sRGB ||
                _glfw.wgl.EXT_framebuffer_sRGB)
            {
                if (getPixelFormatAttrib(window, n, WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB))
                    u->sRGB = GLFW_TRUE;
            }
        }
        else
        {
            PIXELFORMATDESCRIPTOR pfd;

            // Get pixel format attributes through legacy PFDs

            if (!DescribePixelFormat(window->context.wgl.dc,
                                     n,
                                     sizeof(PIXELFORMATDESCRIPTOR),
                                     &pfd))
            {
                continue;
            }

            if (!(pfd.dwFlags & PFD_DRAW_TO_WINDOW) ||
                !(pfd.dwFlags & PFD_SUPPORT_OPENGL))
            {
                continue;
            }

            if (!(pfd.dwFlags & PFD_GENERIC_ACCELERATED) &&
                (pfd.dwFlags & PFD_GENERIC_FORMAT))
            {
                continue;
            }

            if (pfd.iPixelType != PFD_TYPE_RGBA)
                continue;

            u->redBits = pfd.cRedBits;
            u->greenBits = pfd.cGreenBits;
            u->blueBits = pfd.cBlueBits;
            u->alphaBits = pfd.cAlphaBits;

            u->depthBits = pfd.cDepthBits;
            u->stencilBits = pfd.cStencilBits;

            u->accumRedBits = pfd.cAccumRedBits;
            u->accumGreenBits = pfd.cAccumGreenBits;
            u->accumBlueBits = pfd.cAccumBlueBits;
            u->accumAlphaBits = pfd.cAccumAlphaBits;

            u->auxBuffers = pfd.cAuxBuffers;

            if (pfd.dwFlags & PFD_STEREO)
                u->stereo = GLFW_TRUE;
            if (pfd.dwFlags & PFD_DOUBLEBUFFER)
                u->doublebuffer = GLFW_TRUE;
        }

        u->handle = n;
        usableCount++;
    }

    if (!usableCount)
    {
        _glfwInputError(GLFW_API_UNAVAILABLE,
                        "WGL: The driver does not appear to support OpenGL");

        free(usableConfigs);
        return 0;
    }

    closest = _glfwChooseFBConfig(desired, usableConfigs, usableCount);
    if (!closest)
    {
        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
                        "WGL: Failed to find a suitable pixel format");

        free(usableConfigs);
        return 0;
    }

    pixelFormat = (int) closest->handle;
    free(usableConfigs);

    return pixelFormat;
}
Example #6
0
void _glfwPlatformSetWindowIcon(_GLFWwindow* window,
                                int count, const GLFWimage* images)
{
    _glfwInputError(GLFW_PLATFORM_ERROR,
                    "Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
Example #7
0
// Initialize WGL-specific extensions
//
static void loadWGLExtensions(void)
{
    PIXELFORMATDESCRIPTOR pfd;
    HGLRC rc;
    HDC dc = GetDC(_glfw.win32.helperWindowHandle);;

    _glfw.wgl.extensionsLoaded = GLFW_TRUE;

    // NOTE: A dummy context has to be created for opengl32.dll to load the
    //       OpenGL ICD, from which we can then query WGL extensions
    // NOTE: This code will accept the Microsoft GDI ICD; accelerated context
    //       creation failure occurs during manual pixel format enumeration

    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 = 24;

    if (!SetPixelFormat(dc, ChoosePixelFormat(dc, &pfd), &pfd))
    {
        _glfwInputError(GLFW_PLATFORM_ERROR,
                        "WGL: Failed to set pixel format for dummy context");
        return;
    }

    rc = wglCreateContext(dc);
    if (!rc)
    {
        _glfwInputError(GLFW_PLATFORM_ERROR,
                        "WGL: Failed to create dummy context");
        return;
    }

    if (!wglMakeCurrent(dc, rc))
    {
        wglDeleteContext(rc);

        _glfwInputError(GLFW_PLATFORM_ERROR,
                        "WGL: Failed to make dummy context current");
        return;
    }

    // NOTE: Functions must be loaded first as they're needed to retrieve the
    //       extension string that tells us whether the functions are supported
    _glfw.wgl.GetExtensionsStringEXT = (PFNWGLGETEXTENSIONSSTRINGEXTPROC)
        wglGetProcAddress("wglGetExtensionsStringEXT");
    _glfw.wgl.GetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC)
        wglGetProcAddress("wglGetExtensionsStringARB");
    _glfw.wgl.CreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)
        wglGetProcAddress("wglCreateContextAttribsARB");
    _glfw.wgl.SwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)
        wglGetProcAddress("wglSwapIntervalEXT");
    _glfw.wgl.GetPixelFormatAttribivARB = (PFNWGLGETPIXELFORMATATTRIBIVARBPROC)
        wglGetProcAddress("wglGetPixelFormatAttribivARB");

    // NOTE: WGL_ARB_extensions_string and WGL_EXT_extensions_string are not
    //       checked below as we are already using them
    _glfw.wgl.ARB_multisample =
        extensionSupportedWGL("WGL_ARB_multisample");
    _glfw.wgl.ARB_framebuffer_sRGB =
        extensionSupportedWGL("WGL_ARB_framebuffer_sRGB");
    _glfw.wgl.EXT_framebuffer_sRGB =
        extensionSupportedWGL("WGL_EXT_framebuffer_sRGB");
    _glfw.wgl.ARB_create_context =
        extensionSupportedWGL("WGL_ARB_create_context");
    _glfw.wgl.ARB_create_context_profile =
        extensionSupportedWGL("WGL_ARB_create_context_profile");
    _glfw.wgl.EXT_create_context_es2_profile =
        extensionSupportedWGL("WGL_EXT_create_context_es2_profile");
    _glfw.wgl.ARB_create_context_robustness =
        extensionSupportedWGL("WGL_ARB_create_context_robustness");
    _glfw.wgl.EXT_swap_control =
        extensionSupportedWGL("WGL_EXT_swap_control");
    _glfw.wgl.ARB_pixel_format =
        extensionSupportedWGL("WGL_ARB_pixel_format");
    _glfw.wgl.ARB_context_flush_control =
        extensionSupportedWGL("WGL_ARB_context_flush_control");

    wglMakeCurrent(dc, NULL);
    wglDeleteContext(rc);
}
// Create the OpenGL or OpenGL ES context
//
int _glfwCreateContext(_GLFWwindow* window,
                       const _GLFWctxconfig* ctxconfig,
                       const _GLFWfbconfig* fbconfig)
{
    int attribs[40];
    GLXFBConfig native = NULL;
    GLXContext share = NULL;

    if (ctxconfig->share)
        share = ctxconfig->share->glx.context;

    if (!chooseFBConfig(fbconfig, &native))
    {
        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
                        "GLX: Failed to find a suitable GLXFBConfig");
        return GL_FALSE;
    }

    window->glx.visual = _glfw_glXGetVisualFromFBConfig(_glfw.x11.display,
                                                        native);
    if (!window->glx.visual)
    {
        _glfwInputError(GLFW_PLATFORM_ERROR,
                        "GLX: Failed to retrieve visual for GLXFBConfig");
        return GL_FALSE;
    }

    if (ctxconfig->api == GLFW_OPENGL_ES_API)
    {
        if (!_glfw.glx.ARB_create_context ||
            !_glfw.glx.ARB_create_context_profile ||
            !_glfw.glx.EXT_create_context_es2_profile)
        {
            _glfwInputError(GLFW_API_UNAVAILABLE,
                            "GLX: OpenGL ES requested but GLX_EXT_create_context_es2_profile is unavailable");
            return GL_FALSE;
        }
    }

    if (ctxconfig->forward)
    {
        if (!_glfw.glx.ARB_create_context)
        {
            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
                            "GLX: Forward compatibility requested but GLX_ARB_create_context_profile is unavailable");
            return GL_FALSE;
        }
    }

    if (ctxconfig->profile)
    {
        if (!_glfw.glx.ARB_create_context ||
            !_glfw.glx.ARB_create_context_profile)
        {
            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
                            "GLX: An OpenGL profile requested but GLX_ARB_create_context_profile is unavailable");
            return GL_FALSE;
        }
    }

    _glfwGrabXErrorHandler();

    if (_glfw.glx.ARB_create_context)
    {
        int index = 0, mask = 0, flags = 0;

        if (ctxconfig->api == GLFW_OPENGL_API)
        {
            if (ctxconfig->forward)
                flags |= GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;

            if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
                mask |= GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
            else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
                mask |= GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
        }
        else
            mask |= GLX_CONTEXT_ES2_PROFILE_BIT_EXT;

        if (ctxconfig->debug)
            flags |= GLX_CONTEXT_DEBUG_BIT_ARB;

        if (ctxconfig->robustness)
        {
            if (_glfw.glx.ARB_create_context_robustness)
            {
                if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
                {
                    setGLXattrib(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
                                 GLX_NO_RESET_NOTIFICATION_ARB);
                }
                else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
                {
                    setGLXattrib(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
                                 GLX_LOSE_CONTEXT_ON_RESET_ARB);
                }

                flags |= GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB;
            }
        }

        if (ctxconfig->release)
        {
            if (_glfw.glx.ARB_context_flush_control)
            {
                if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE)
                {
                    setGLXattrib(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB,
                                 GLX_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB);
                }
                else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
                {
                    setGLXattrib(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB,
                                 GLX_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB);
                }
            }
        }

        // NOTE: Only request an explicitly versioned context when necessary, as
        //       explicitly requesting version 1.0 does not always return the
        //       highest version supported by the driver
        if (ctxconfig->major != 1 || ctxconfig->minor != 0)
        {
            setGLXattrib(GLX_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major);
            setGLXattrib(GLX_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor);
        }

        if (mask)
            setGLXattrib(GLX_CONTEXT_PROFILE_MASK_ARB, mask);

        if (flags)
            setGLXattrib(GLX_CONTEXT_FLAGS_ARB, flags);

        setGLXattrib(None, None);

        window->glx.context =
            _glfw.glx.CreateContextAttribsARB(_glfw.x11.display,
                                              native,
                                              share,
                                              True,
                                              attribs);

        // HACK: This is a fallback for broken versions of the Mesa
        //       implementation of GLX_ARB_create_context_profile that fail
        //       default 1.0 context creation with a GLXBadProfileARB error in
        //       violation of the extension spec
        if (!window->glx.context)
        {
            if (_glfw.x11.errorCode == _glfw.glx.errorBase + GLXBadProfileARB &&
                ctxconfig->api == GLFW_OPENGL_API &&
                ctxconfig->profile == GLFW_OPENGL_ANY_PROFILE &&
                ctxconfig->forward == GL_FALSE)
            {
                window->glx.context = createLegacyContext(window, native, share);
            }
        }
    }
    else
        window->glx.context = createLegacyContext(window, native, share);

    _glfwReleaseXErrorHandler();

    if (!window->glx.context)
    {
        _glfwInputXError(GLFW_VERSION_UNAVAILABLE, "GLX: Failed to create context");
        return GL_FALSE;
    }

    return GL_TRUE;
}
Example #9
0
GLFWAPI GLFWwindow* glfwCreateWindow(int width, int height,
                                     const char* title,
                                     GLFWmonitor* monitor,
                                     GLFWwindow* share)
{
    _GLFWfbconfig fbconfig;
    _GLFWctxconfig ctxconfig;
    _GLFWwndconfig wndconfig;
    _GLFWwindow* window;
    _GLFWwindow* previous;

    assert(title != NULL);
    assert(width >= 0);
    assert(height >= 0);

    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);

    if (width <= 0 || height <= 0)
    {
        _glfwInputError(GLFW_INVALID_VALUE,
                        "Invalid window size %ix%i",
                        width, height);

        return NULL;
    }

    fbconfig  = _glfw.hints.framebuffer;
    ctxconfig = _glfw.hints.context;
    wndconfig = _glfw.hints.window;

    wndconfig.width   = width;
    wndconfig.height  = height;
    wndconfig.title   = title;
    ctxconfig.share   = (_GLFWwindow*) share;

    if (ctxconfig.share)
    {
        if (ctxconfig.client == GLFW_NO_API ||
            ctxconfig.share->context.client == GLFW_NO_API)
        {
            _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
            return NULL;
        }
    }

    if (!_glfwIsValidContextConfig(&ctxconfig))
        return NULL;

    window = calloc(1, sizeof(_GLFWwindow));
    window->next = _glfw.windowListHead;
    _glfw.windowListHead = window;

    window->videoMode.width       = width;
    window->videoMode.height      = height;
    window->videoMode.redBits     = fbconfig.redBits;
    window->videoMode.greenBits   = fbconfig.greenBits;
    window->videoMode.blueBits    = fbconfig.blueBits;
    window->videoMode.refreshRate = _glfw.hints.refreshRate;

    window->monitor     = (_GLFWmonitor*) monitor;
    window->resizable   = wndconfig.resizable;
    window->decorated   = wndconfig.decorated;
    window->autoIconify = wndconfig.autoIconify;
    window->floating    = wndconfig.floating;
    window->cursorMode  = GLFW_CURSOR_NORMAL;

    window->minwidth    = GLFW_DONT_CARE;
    window->minheight   = GLFW_DONT_CARE;
    window->maxwidth    = GLFW_DONT_CARE;
    window->maxheight   = GLFW_DONT_CARE;
    window->numer       = GLFW_DONT_CARE;
    window->denom       = GLFW_DONT_CARE;

    // Save the currently current context so it can be restored later
    previous = _glfwPlatformGetTls(&_glfw.contextSlot);
    if (ctxconfig.client != GLFW_NO_API)
        glfwMakeContextCurrent(NULL);

    // Open the actual window and create its context
    if (!_glfwPlatformCreateWindow(window, &wndconfig, &ctxconfig, &fbconfig))
    {
        glfwMakeContextCurrent((GLFWwindow*) previous);
        glfwDestroyWindow((GLFWwindow*) window);
        return NULL;
    }

    if (ctxconfig.client != GLFW_NO_API)
    {
        window->context.makeCurrent(window);

        // Retrieve the actual (as opposed to requested) context attributes
        if (!_glfwRefreshContextAttribs(&ctxconfig))
        {
            glfwMakeContextCurrent((GLFWwindow*) previous);
            glfwDestroyWindow((GLFWwindow*) window);
            return NULL;
        }

        // Restore the previously current context (or NULL)
        glfwMakeContextCurrent((GLFWwindow*) previous);
    }

    if (!window->monitor)
    {
        if (wndconfig.visible)
        {
            _glfwPlatformShowWindow(window);
            if (wndconfig.focused)
                _glfwPlatformFocusWindow(window);
        }
    }

    return (GLFWwindow*) window;
}
Example #10
0
GLFWAPI void glfwWindowHint(int hint, int value)
{
    _GLFW_REQUIRE_INIT();

    switch (hint)
    {
        case GLFW_RED_BITS:
            _glfw.hints.framebuffer.redBits = value;
            break;
        case GLFW_GREEN_BITS:
            _glfw.hints.framebuffer.greenBits = value;
            break;
        case GLFW_BLUE_BITS:
            _glfw.hints.framebuffer.blueBits = value;
            break;
        case GLFW_ALPHA_BITS:
            _glfw.hints.framebuffer.alphaBits = value;
            break;
        case GLFW_DEPTH_BITS:
            _glfw.hints.framebuffer.depthBits = value;
            break;
        case GLFW_STENCIL_BITS:
            _glfw.hints.framebuffer.stencilBits = value;
            break;
        case GLFW_ACCUM_RED_BITS:
            _glfw.hints.framebuffer.accumRedBits = value;
            break;
        case GLFW_ACCUM_GREEN_BITS:
            _glfw.hints.framebuffer.accumGreenBits = value;
            break;
        case GLFW_ACCUM_BLUE_BITS:
            _glfw.hints.framebuffer.accumBlueBits = value;
            break;
        case GLFW_ACCUM_ALPHA_BITS:
            _glfw.hints.framebuffer.accumAlphaBits = value;
            break;
        case GLFW_AUX_BUFFERS:
            _glfw.hints.framebuffer.auxBuffers = value;
            break;
        case GLFW_STEREO:
            _glfw.hints.framebuffer.stereo = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_DOUBLEBUFFER:
            _glfw.hints.framebuffer.doublebuffer = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_SAMPLES:
            _glfw.hints.framebuffer.samples = value;
            break;
        case GLFW_SRGB_CAPABLE:
            _glfw.hints.framebuffer.sRGB = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_RESIZABLE:
            _glfw.hints.window.resizable = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_DECORATED:
            _glfw.hints.window.decorated = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_FOCUSED:
            _glfw.hints.window.focused = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_AUTO_ICONIFY:
            _glfw.hints.window.autoIconify = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_FLOATING:
            _glfw.hints.window.floating = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_MAXIMIZED:
            _glfw.hints.window.maximized = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_VISIBLE:
            _glfw.hints.window.visible = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_COCOA_RETINA_FRAMEBUFFER:
            _glfw.hints.window.ns.retina = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_COCOA_FRAME_AUTOSAVE:
            _glfw.hints.window.ns.frame = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_COCOA_GRAPHICS_SWITCHING:
            _glfw.hints.context.nsgl.offline = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_CENTER_CURSOR:
            _glfw.hints.window.centerCursor = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_CLIENT_API:
            _glfw.hints.context.client = value;
            break;
        case GLFW_CONTEXT_CREATION_API:
            _glfw.hints.context.source = value;
            break;
        case GLFW_CONTEXT_VERSION_MAJOR:
            _glfw.hints.context.major = value;
            break;
        case GLFW_CONTEXT_VERSION_MINOR:
            _glfw.hints.context.minor = value;
            break;
        case GLFW_CONTEXT_ROBUSTNESS:
            _glfw.hints.context.robustness = value;
            break;
        case GLFW_OPENGL_FORWARD_COMPAT:
            _glfw.hints.context.forward = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_OPENGL_DEBUG_CONTEXT:
            _glfw.hints.context.debug = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_CONTEXT_NO_ERROR:
            _glfw.hints.context.noerror = value ? GLFW_TRUE : GLFW_FALSE;
            break;
        case GLFW_OPENGL_PROFILE:
            _glfw.hints.context.profile = value;
            break;
        case GLFW_CONTEXT_RELEASE_BEHAVIOR:
            _glfw.hints.context.release = value;
            break;
        case GLFW_REFRESH_RATE:
            _glfw.hints.refreshRate = value;
            break;
        default:
            _glfwInputError(GLFW_INVALID_ENUM, "Invalid window hint 0x%08X", hint);
            break;
    }
}
Example #11
0
GLFWAPI void glfwWindowHint(int target, int hint)
{
    _GLFW_REQUIRE_INIT();

    switch (target)
    {
        case GLFW_RED_BITS:
            _glfw.hints.framebuffer.redBits = hint;
            break;
        case GLFW_GREEN_BITS:
            _glfw.hints.framebuffer.greenBits = hint;
            break;
        case GLFW_BLUE_BITS:
            _glfw.hints.framebuffer.blueBits = hint;
            break;
        case GLFW_ALPHA_BITS:
            _glfw.hints.framebuffer.alphaBits = hint;
            break;
        case GLFW_DEPTH_BITS:
            _glfw.hints.framebuffer.depthBits = hint;
            break;
        case GLFW_STENCIL_BITS:
            _glfw.hints.framebuffer.stencilBits = hint;
            break;
        case GLFW_ACCUM_RED_BITS:
            _glfw.hints.framebuffer.accumRedBits = hint;
            break;
        case GLFW_ACCUM_GREEN_BITS:
            _glfw.hints.framebuffer.accumGreenBits = hint;
            break;
        case GLFW_ACCUM_BLUE_BITS:
            _glfw.hints.framebuffer.accumBlueBits = hint;
            break;
        case GLFW_ACCUM_ALPHA_BITS:
            _glfw.hints.framebuffer.accumAlphaBits = hint;
            break;
        case GLFW_AUX_BUFFERS:
            _glfw.hints.framebuffer.auxBuffers = hint;
            break;
        case GLFW_STEREO:
            _glfw.hints.framebuffer.stereo = hint ? GL_TRUE : GL_FALSE;
            break;
        case GLFW_DOUBLEBUFFER:
            _glfw.hints.framebuffer.doublebuffer = hint ? GL_TRUE : GL_FALSE;
            break;
        case GLFW_SAMPLES:
            _glfw.hints.framebuffer.samples = hint;
            break;
        case GLFW_SRGB_CAPABLE:
            _glfw.hints.framebuffer.sRGB = hint ? GL_TRUE : GL_FALSE;
            break;
        case GLFW_RESIZABLE:
            _glfw.hints.window.resizable = hint ? GL_TRUE : GL_FALSE;
            break;
        case GLFW_DECORATED:
            _glfw.hints.window.decorated = hint ? GL_TRUE : GL_FALSE;
            break;
        case GLFW_FOCUSED:
            _glfw.hints.window.focused = hint ? GL_TRUE : GL_FALSE;
            break;
        case GLFW_AUTO_ICONIFY:
            _glfw.hints.window.autoIconify = hint ? GL_TRUE : GL_FALSE;
            break;
        case GLFW_FLOATING:
            _glfw.hints.window.floating = hint ? GL_TRUE : GL_FALSE;
            break;
        case GLFW_VISIBLE:
            _glfw.hints.window.visible = hint ? GL_TRUE : GL_FALSE;
            break;
        case GLFW_CLIENT_API:
            _glfw.hints.context.api = hint;
            break;
        case GLFW_CONTEXT_VERSION_MAJOR:
            _glfw.hints.context.major = hint;
            break;
        case GLFW_CONTEXT_VERSION_MINOR:
            _glfw.hints.context.minor = hint;
            break;
        case GLFW_CONTEXT_ROBUSTNESS:
            _glfw.hints.context.robustness = hint;
            break;
        case GLFW_OPENGL_FORWARD_COMPAT:
            _glfw.hints.context.forward = hint ? GL_TRUE : GL_FALSE;
            break;
        case GLFW_OPENGL_DEBUG_CONTEXT:
            _glfw.hints.context.debug = hint ? GL_TRUE : GL_FALSE;
            break;
        case GLFW_OPENGL_PROFILE:
            _glfw.hints.context.profile = hint;
            break;
        case GLFW_CONTEXT_RELEASE_BEHAVIOR:
            _glfw.hints.context.release = hint;
            break;
        case GLFW_REFRESH_RATE:
            _glfw.hints.refreshRate = hint;
            break;
        default:
            _glfwInputError(GLFW_INVALID_ENUM, "Invalid window hint");
            break;
    }
}
Example #12
0
GLFWAPI GLFWwindow* glfwCreateWindow(int width, int height,
                                     const char* title,
                                     GLFWmonitor* monitor,
                                     GLFWwindow* share)
{
    _GLFWfbconfig fbconfig;
    _GLFWctxconfig ctxconfig;
    _GLFWwndconfig wndconfig;
    _GLFWwindow* window;
    _GLFWwindow* previous;

    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);

    if (width <= 0 || height <= 0)
    {
        _glfwInputError(GLFW_INVALID_VALUE, "Invalid window size");
        return NULL;
    }

    fbconfig  = _glfw.hints.framebuffer;
    ctxconfig = _glfw.hints.context;
    wndconfig = _glfw.hints.window;

    wndconfig.width   = width;
    wndconfig.height  = height;
    wndconfig.title   = title;
    wndconfig.monitor = (_GLFWmonitor*) monitor;
    ctxconfig.share   = (_GLFWwindow*) share;

    if (wndconfig.monitor)
    {
        wndconfig.resizable = GL_TRUE;
        wndconfig.visible   = GL_TRUE;
        wndconfig.focused   = GL_TRUE;
    }

    // Check the OpenGL bits of the window config
    if (!_glfwIsValidContextConfig(&ctxconfig))
        return NULL;

    window = calloc(1, sizeof(_GLFWwindow));
    window->next = _glfw.windowListHead;
    _glfw.windowListHead = window;

    window->videoMode.width       = width;
    window->videoMode.height      = height;
    window->videoMode.redBits     = fbconfig.redBits;
    window->videoMode.greenBits   = fbconfig.greenBits;
    window->videoMode.blueBits    = fbconfig.blueBits;
    window->videoMode.refreshRate = _glfw.hints.refreshRate;

    window->monitor     = wndconfig.monitor;
    window->resizable   = wndconfig.resizable;
    window->decorated   = wndconfig.decorated;
    window->autoIconify = wndconfig.autoIconify;
    window->floating    = wndconfig.floating;
    window->cursorMode  = GLFW_CURSOR_NORMAL;

    // Save the currently current context so it can be restored later
    previous = _glfwPlatformGetCurrentContext();

    // Open the actual window and create its context
    if (!_glfwPlatformCreateWindow(window, &wndconfig, &ctxconfig, &fbconfig))
    {
        glfwDestroyWindow((GLFWwindow*) window);
        _glfwPlatformMakeContextCurrent(previous);
        return NULL;
    }

    _glfwPlatformMakeContextCurrent(window);

    // Retrieve the actual (as opposed to requested) context attributes
    if (!_glfwRefreshContextAttribs(&ctxconfig))
    {
        glfwDestroyWindow((GLFWwindow*) window);
        _glfwPlatformMakeContextCurrent(previous);
        return NULL;
    }

    // Verify the context against the requested parameters
    if (!_glfwIsValidContext(&ctxconfig))
    {
        glfwDestroyWindow((GLFWwindow*) window);
        _glfwPlatformMakeContextCurrent(previous);
        return NULL;
    }

    // Clearing the front buffer to black to avoid garbage pixels left over
    // from previous uses of our bit of VRAM
    glClear(GL_COLOR_BUFFER_BIT);
    _glfwPlatformSwapBuffers(window);

    // Restore the previously current context (or NULL)
    _glfwPlatformMakeContextCurrent(previous);

    if (wndconfig.monitor)
    {
        int width, height;
        _glfwPlatformGetWindowSize(window, &width, &height);

        window->cursorPosX = width / 2;
        window->cursorPosY = height / 2;

        _glfwPlatformSetCursorPos(window, window->cursorPosX, window->cursorPosY);
    }
    else
    {
        if (wndconfig.visible)
        {
            if (wndconfig.focused)
                _glfwPlatformShowWindow(window);
            else
                _glfwPlatformUnhideWindow(window);
        }
    }

    return (GLFWwindow*) window;
}
// Return a list of available and usable framebuffer configs
//
static GLboolean chooseFBConfig(const _GLFWfbconfig* desired, GLXFBConfig* result)
{
    GLXFBConfig* nativeConfigs;
    _GLFWfbconfig* usableConfigs;
    const _GLFWfbconfig* closest;
    int i, nativeCount, usableCount;
    const char* vendor;
    GLboolean trustWindowBit = GL_TRUE;

    // HACK: This is a (hopefully temporary) workaround for Chromium
    //       (VirtualBox GL) not setting the window bit on any GLXFBConfigs
    vendor = _glfw_glXGetClientString(_glfw.x11.display, GLX_VENDOR);
    if (strcmp(vendor, "Chromium") == 0)
        trustWindowBit = GL_FALSE;

    nativeConfigs = _glfw_glXGetFBConfigs(_glfw.x11.display, _glfw.x11.screen,
                                          &nativeCount);
    if (!nativeCount)
    {
        _glfwInputError(GLFW_API_UNAVAILABLE, "GLX: No GLXFBConfigs returned");
        return GL_FALSE;
    }

    usableConfigs = calloc(nativeCount, sizeof(_GLFWfbconfig));
    usableCount = 0;

    for (i = 0;  i < nativeCount;  i++)
    {
        const GLXFBConfig n = nativeConfigs[i];
        _GLFWfbconfig* u = usableConfigs + usableCount;

        // Only consider GLXFBConfigs with associated visuals
        if (!getFBConfigAttrib(n, GLX_VISUAL_ID))
            continue;

        // Only consider RGBA GLXFBConfigs
        if (!(getFBConfigAttrib(n, GLX_RENDER_TYPE) & GLX_RGBA_BIT))
            continue;

        // Only consider window GLXFBConfigs
        if (!(getFBConfigAttrib(n, GLX_DRAWABLE_TYPE) & GLX_WINDOW_BIT))
        {
            if (trustWindowBit)
                continue;
        }

        u->redBits = getFBConfigAttrib(n, GLX_RED_SIZE);
        u->greenBits = getFBConfigAttrib(n, GLX_GREEN_SIZE);
        u->blueBits = getFBConfigAttrib(n, GLX_BLUE_SIZE);

        u->alphaBits = getFBConfigAttrib(n, GLX_ALPHA_SIZE);
        u->depthBits = getFBConfigAttrib(n, GLX_DEPTH_SIZE);
        u->stencilBits = getFBConfigAttrib(n, GLX_STENCIL_SIZE);

        u->accumRedBits = getFBConfigAttrib(n, GLX_ACCUM_RED_SIZE);
        u->accumGreenBits = getFBConfigAttrib(n, GLX_ACCUM_GREEN_SIZE);
        u->accumBlueBits = getFBConfigAttrib(n, GLX_ACCUM_BLUE_SIZE);
        u->accumAlphaBits = getFBConfigAttrib(n, GLX_ACCUM_ALPHA_SIZE);

        u->auxBuffers = getFBConfigAttrib(n, GLX_AUX_BUFFERS);

        if (getFBConfigAttrib(n, GLX_STEREO))
            u->stereo = GL_TRUE;
        if (getFBConfigAttrib(n, GLX_DOUBLEBUFFER))
            u->doublebuffer = GL_TRUE;

        if (_glfw.glx.ARB_multisample)
            u->samples = getFBConfigAttrib(n, GLX_SAMPLES);

        if (_glfw.glx.ARB_framebuffer_sRGB || _glfw.glx.EXT_framebuffer_sRGB)
            u->sRGB = getFBConfigAttrib(n, GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB);

        u->glx = n;
        usableCount++;
    }

    closest = _glfwChooseFBConfig(desired, usableConfigs, usableCount);
    if (closest)
        *result = closest->glx;

    XFree(nativeConfigs);
    free(usableConfigs);

    return closest ? GL_TRUE : GL_FALSE;
}
Example #14
0
void _glfwPlatformSetCursorPos(_GLFWwindow* window, double xpos, double ypos)
{
    _glfwInputError(GLFW_PLATFORM_ERROR,
                    "Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
Example #15
0
// Create the OpenGL or OpenGL ES context
//
GLFWbool _glfwCreateContextWGL(_GLFWwindow* window,
                               const _GLFWctxconfig* ctxconfig,
                               const _GLFWfbconfig* fbconfig)
{
    int attribs[40];
    int pixelFormat;
    PIXELFORMATDESCRIPTOR pfd;
    HGLRC share = NULL;

    if (!_glfw.wgl.extensionsLoaded)
        loadWGLExtensions();

    if (ctxconfig->share)
        share = ctxconfig->share->context.wgl.handle;

    window->context.wgl.dc = GetDC(window->win32.handle);
    if (!window->context.wgl.dc)
    {
        _glfwInputError(GLFW_PLATFORM_ERROR,
                        "WGL: Failed to retrieve DC for window");
        return GLFW_FALSE;
    }

    pixelFormat = choosePixelFormat(window, fbconfig);
    if (!pixelFormat)
        return GLFW_FALSE;

    if (!DescribePixelFormat(window->context.wgl.dc,
                             pixelFormat, sizeof(pfd), &pfd))
    {
        _glfwInputError(GLFW_PLATFORM_ERROR,
                        "WGL: Failed to retrieve PFD for selected pixel format");
        return GLFW_FALSE;
    }

    if (!SetPixelFormat(window->context.wgl.dc, pixelFormat, &pfd))
    {
        _glfwInputError(GLFW_PLATFORM_ERROR,
                        "WGL: Failed to set selected pixel format");
        return GLFW_FALSE;
    }

    if (ctxconfig->client == GLFW_OPENGL_API)
    {
        if (ctxconfig->forward)
        {
            if (!_glfw.wgl.ARB_create_context)
            {
                _glfwInputError(GLFW_VERSION_UNAVAILABLE,
                                "WGL: A forward compatible OpenGL context requested but WGL_ARB_create_context is unavailable");
                return GLFW_FALSE;
            }
        }

        if (ctxconfig->profile)
        {
            if (!_glfw.wgl.ARB_create_context_profile)
            {
                _glfwInputError(GLFW_VERSION_UNAVAILABLE,
                                "WGL: OpenGL profile requested but WGL_ARB_create_context_profile is unavailable");
                return GLFW_FALSE;
            }
        }
    }
    else
    {
        if (!_glfw.wgl.ARB_create_context ||
            !_glfw.wgl.ARB_create_context_profile ||
            !_glfw.wgl.EXT_create_context_es2_profile)
        {
            _glfwInputError(GLFW_API_UNAVAILABLE,
                            "WGL: OpenGL ES requested but WGL_ARB_create_context_es2_profile is unavailable");
            return GLFW_FALSE;
        }
    }

    if (_glfw.wgl.ARB_create_context)
    {
        int index = 0, mask = 0, flags = 0;

        if (ctxconfig->client == GLFW_OPENGL_API)
        {
            if (ctxconfig->forward)
                flags |= WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;

            if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
                mask |= WGL_CONTEXT_CORE_PROFILE_BIT_ARB;
            else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
                mask |= WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
        }
        else
            mask |= WGL_CONTEXT_ES2_PROFILE_BIT_EXT;

        if (ctxconfig->debug)
            flags |= WGL_CONTEXT_DEBUG_BIT_ARB;
        if (ctxconfig->noerror)
            flags |= GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR;

        if (ctxconfig->robustness)
        {
            if (_glfw.wgl.ARB_create_context_robustness)
            {
                if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
                {
                    setWGLattrib(WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
                                 WGL_NO_RESET_NOTIFICATION_ARB);
                }
                else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
                {
                    setWGLattrib(WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
                                 WGL_LOSE_CONTEXT_ON_RESET_ARB);
                }

                flags |= WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB;
            }
        }

        if (ctxconfig->release)
        {
            if (_glfw.wgl.ARB_context_flush_control)
            {
                if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE)
                {
                    setWGLattrib(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB,
                                 WGL_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB);
                }
                else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
                {
                    setWGLattrib(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB,
                                 WGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB);
                }
            }
        }

        // NOTE: Only request an explicitly versioned context when necessary, as
        //       explicitly requesting version 1.0 does not always return the
        //       highest version supported by the driver
        if (ctxconfig->major != 1 || ctxconfig->minor != 0)
        {
            setWGLattrib(WGL_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major);
            setWGLattrib(WGL_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor);
        }

        if (flags)
            setWGLattrib(WGL_CONTEXT_FLAGS_ARB, flags);

        if (mask)
            setWGLattrib(WGL_CONTEXT_PROFILE_MASK_ARB, mask);

        setWGLattrib(0, 0);

        window->context.wgl.handle =
            _glfw.wgl.CreateContextAttribsARB(window->context.wgl.dc,
                                              share, attribs);
        if (!window->context.wgl.handle)
        {
            const DWORD error = GetLastError();

            if (error == (0xc0070000 | ERROR_INVALID_VERSION_ARB))
            {
                if (ctxconfig->client == GLFW_OPENGL_API)
                {
                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
                                    "WGL: Driver does not support OpenGL version %i.%i",
                                    ctxconfig->major,
                                    ctxconfig->minor);
                }
                else
                {
                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
                                    "WGL: Driver does not support OpenGL ES version %i.%i",
                                    ctxconfig->major,
                                    ctxconfig->minor);
                }
            }
            else if (error == (0xc0070000 | ERROR_INVALID_PROFILE_ARB))
            {
                _glfwInputError(GLFW_VERSION_UNAVAILABLE,
                                "WGL: Driver does not support the requested OpenGL profile");
            }
            else
            {
                if (ctxconfig->client == GLFW_OPENGL_API)
                {
                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
                                    "WGL: Failed to create OpenGL context");
                }
                else
                {
                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
                                    "WGL: Failed to create OpenGL ES context");
                }
            }

            return GLFW_FALSE;
        }
    }
    else
    {
        window->context.wgl.handle = wglCreateContext(window->context.wgl.dc);
        if (!window->context.wgl.handle)
        {
            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
                            "WGL: Failed to create OpenGL context");
            return GLFW_FALSE;
        }

        if (share)
        {
            if (!wglShareLists(share, window->context.wgl.handle))
            {
                _glfwInputError(GLFW_PLATFORM_ERROR,
                                "WGL: Failed to enable sharing with specified OpenGL context");
                return GLFW_FALSE;
            }
        }
    }

    window->context.makeCurrent = makeContextCurrentWGL;
    window->context.swapBuffers = swapBuffersWGL;
    window->context.swapInterval = swapIntervalWGL;
    window->context.extensionSupported = extensionSupportedWGL;
    window->context.getProcAddress = getProcAddressWGL;
    window->context.destroy = destroyContextWGL;

    return GLFW_TRUE;
}
Example #16
0
void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode)
{
    _glfwInputError(GLFW_PLATFORM_ERROR,
                    "Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
// Initialize GLX
//
int _glfwInitContextAPI(void)
{
#if defined(__CYGWIN__)
    const char* soname = "libGL-1.so";
#else
    const char* soname = "libGL.so.1";
#endif

    if (!_glfwCreateContextTLS())
        return GL_FALSE;

    _glfw.glx.handle = dlopen(soname, RTLD_LAZY | RTLD_GLOBAL);
    if (!_glfw.glx.handle)
    {
        _glfwInputError(GLFW_API_UNAVAILABLE, "GLX: %s", dlerror());
        return GL_FALSE;
    }

    _glfw.glx.GetFBConfigs =
        dlsym(_glfw.glx.handle, "glXGetFBConfigs");
    _glfw.glx.GetFBConfigAttrib =
        dlsym(_glfw.glx.handle, "glXGetFBConfigAttrib");
    _glfw.glx.GetClientString =
        dlsym(_glfw.glx.handle, "glXGetClientString");
    _glfw.glx.QueryExtension =
        dlsym(_glfw.glx.handle, "glXQueryExtension");
    _glfw.glx.QueryVersion =
        dlsym(_glfw.glx.handle, "glXQueryVersion");
    _glfw.glx.DestroyContext =
        dlsym(_glfw.glx.handle, "glXDestroyContext");
    _glfw.glx.MakeCurrent =
        dlsym(_glfw.glx.handle, "glXMakeCurrent");
    _glfw.glx.SwapBuffers =
        dlsym(_glfw.glx.handle, "glXSwapBuffers");
    _glfw.glx.QueryExtensionsString =
        dlsym(_glfw.glx.handle, "glXQueryExtensionsString");
    _glfw.glx.CreateNewContext =
        dlsym(_glfw.glx.handle, "glXCreateNewContext");
    _glfw.glx.GetVisualFromFBConfig =
        dlsym(_glfw.glx.handle, "glXGetVisualFromFBConfig");
    _glfw.glx.GetProcAddress =
        dlsym(_glfw.glx.handle, "glXGetProcAddress");
    _glfw.glx.GetProcAddressARB =
        dlsym(_glfw.glx.handle, "glXGetProcAddressARB");

    if (!_glfw_glXQueryExtension(_glfw.x11.display,
                                 &_glfw.glx.errorBase,
                                 &_glfw.glx.eventBase))
    {
        _glfwInputError(GLFW_API_UNAVAILABLE, "GLX: GLX extension not found");
        return GL_FALSE;
    }

    if (!_glfw_glXQueryVersion(_glfw.x11.display,
                               &_glfw.glx.major,
                               &_glfw.glx.minor))
    {
        _glfwInputError(GLFW_API_UNAVAILABLE,
                        "GLX: Failed to query GLX version");
        return GL_FALSE;
    }

    if (_glfw.glx.major == 1 && _glfw.glx.minor < 3)
    {
        _glfwInputError(GLFW_API_UNAVAILABLE,
                        "GLX: GLX version 1.3 is required");
        return GL_FALSE;
    }

    if (_glfwPlatformExtensionSupported("GLX_EXT_swap_control"))
    {
        _glfw.glx.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)
            _glfwPlatformGetProcAddress("glXSwapIntervalEXT");

        if (_glfw.glx.SwapIntervalEXT)
            _glfw.glx.EXT_swap_control = GL_TRUE;
    }

    if (_glfwPlatformExtensionSupported("GLX_SGI_swap_control"))
    {
        _glfw.glx.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)
            _glfwPlatformGetProcAddress("glXSwapIntervalSGI");

        if (_glfw.glx.SwapIntervalSGI)
            _glfw.glx.SGI_swap_control = GL_TRUE;
    }

    if (_glfwPlatformExtensionSupported("GLX_MESA_swap_control"))
    {
        _glfw.glx.SwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC)
            _glfwPlatformGetProcAddress("glXSwapIntervalMESA");

        if (_glfw.glx.SwapIntervalMESA)
            _glfw.glx.MESA_swap_control = GL_TRUE;
    }

    if (_glfwPlatformExtensionSupported("GLX_ARB_multisample"))
        _glfw.glx.ARB_multisample = GL_TRUE;

    if (_glfwPlatformExtensionSupported("GLX_ARB_framebuffer_sRGB"))
        _glfw.glx.ARB_framebuffer_sRGB = GL_TRUE;

    if (_glfwPlatformExtensionSupported("GLX_EXT_framebuffer_sRGB"))
        _glfw.glx.EXT_framebuffer_sRGB = GL_TRUE;

    if (_glfwPlatformExtensionSupported("GLX_ARB_create_context"))
    {
        _glfw.glx.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
            _glfwPlatformGetProcAddress("glXCreateContextAttribsARB");

        if (_glfw.glx.CreateContextAttribsARB)
            _glfw.glx.ARB_create_context = GL_TRUE;
    }

    if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_robustness"))
        _glfw.glx.ARB_create_context_robustness = GL_TRUE;

    if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_profile"))
        _glfw.glx.ARB_create_context_profile = GL_TRUE;

    if (_glfwPlatformExtensionSupported("GLX_EXT_create_context_es2_profile"))
        _glfw.glx.EXT_create_context_es2_profile = GL_TRUE;

    if (_glfwPlatformExtensionSupported("GLX_ARB_context_flush_control"))
        _glfw.glx.ARB_context_flush_control = GL_TRUE;

    return GL_TRUE;
}