示例#1
0
// Returns a UTF-8 string version of the specified wide string
//
char* _glfwCreateUTF8FromWideStringWin32(const WCHAR* source)
{
    char* target;
    int length;

    length = WideCharToMultiByte(CP_UTF8, 0, source, -1, NULL, 0, NULL, NULL);
    if (!length)
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "Win32: Failed to convert string to UTF-8");
        return NULL;
    }

    target = calloc(length, 1);

    if (!WideCharToMultiByte(CP_UTF8, 0, source, -1, target, length, NULL, NULL))
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "Win32: Failed to convert string to UTF-8");
        free(target);
        return NULL;
    }

    return target;
}
示例#2
0
// Returns a wide string version of the specified UTF-8 string
//
WCHAR* _glfwCreateWideStringFromUTF8Win32(const char* source)
{
    WCHAR* target;
    int length;

    length = MultiByteToWideChar(CP_UTF8, 0, source, -1, NULL, 0);
    if (!length)
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "Win32: Failed to convert string from UTF-8");
        return NULL;
    }

    target = calloc(length, sizeof(WCHAR));

    if (!MultiByteToWideChar(CP_UTF8, 0, source, -1, target, length))
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "Win32: Failed to convert string from UTF-8");
        free(target);
        return NULL;
    }

    return target;
}
示例#3
0
// Initialize WGL
//
GLFWbool _glfwInitWGL(void)
{
    if (_glfw.wgl.instance)
        return GLFW_TRUE;

    _glfw.wgl.instance = LoadLibraryA("opengl32.dll");
    if (!_glfw.wgl.instance)
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "WGL: Failed to load opengl32.dll");
        return GLFW_FALSE;
    }

    _glfw.wgl.CreateContext = (PFN_wglCreateContext)
        GetProcAddress(_glfw.wgl.instance, "wglCreateContext");
    _glfw.wgl.DeleteContext = (PFN_wglDeleteContext)
        GetProcAddress(_glfw.wgl.instance, "wglDeleteContext");
    _glfw.wgl.GetProcAddress = (PFN_wglGetProcAddress)
        GetProcAddress(_glfw.wgl.instance, "wglGetProcAddress");
    _glfw.wgl.GetCurrentDC = (PFN_wglGetCurrentDC)
        GetProcAddress(_glfw.wgl.instance, "wglGetCurrentDC");
    _glfw.wgl.MakeCurrent = (PFN_wglMakeCurrent)
        GetProcAddress(_glfw.wgl.instance, "wglMakeCurrent");
    _glfw.wgl.ShareLists = (PFN_wglShareLists)
        GetProcAddress(_glfw.wgl.instance, "wglShareLists");

    return GLFW_TRUE;
}
示例#4
0
static void makeContextCurrentWGL(_GLFWwindow* window)
{
    if (window)
    {
        if (wglMakeCurrent(window->context.wgl.dc, window->context.wgl.handle))
            _glfwPlatformSetTls(&_glfw.contextSlot, window);
        else
        {
            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                                 "WGL: Failed to make context current");
            _glfwPlatformSetTls(&_glfw.contextSlot, NULL);
        }
    }
    else
    {
        if (!wglMakeCurrent(NULL, NULL))
        {
            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                                 "WGL: Failed to clear current context");
        }

        _glfwPlatformSetTls(&_glfw.contextSlot, NULL);
    }
}
示例#5
0
文件: win32_thread.c 项目: hanxi/glfw
GLFWbool _glfwPlatformCreateTls(_GLFWtls* tls)
{
    assert(tls->win32.allocated == GLFW_FALSE);

    tls->win32.index = TlsAlloc();
    if (tls->win32.index == TLS_OUT_OF_INDEXES)
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "Win32: Failed to allocate TLS index");
        return GLFW_FALSE;
    }

    tls->win32.allocated = GLFW_TRUE;
    return GLFW_TRUE;
}
示例#6
0
文件: win32_init.c 项目: hanxi/glfw
// Creates a dummy window for behind-the-scenes work
//
static GLFWbool createHelperWindow(void)
{
    MSG msg;

    _glfw.win32.helperWindowHandle =
        CreateWindowExW(WS_EX_OVERLAPPEDWINDOW,
                        _GLFW_WNDCLASSNAME,
                        L"GLFW message window",
                        WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
                        0, 0, 1, 1,
                        NULL, NULL,
                        GetModuleHandleW(NULL),
                        NULL);

    if (!_glfw.win32.helperWindowHandle)
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "Win32: Failed to create helper window");
        return GLFW_FALSE;
    }

    // HACK: The command to the first ShowWindow call is ignored if the parent
    //       process passed along a STARTUPINFO, so clear that with a no-op call
    ShowWindow(_glfw.win32.helperWindowHandle, SW_HIDE);

    // Register for HID device notifications
    {
        DEV_BROADCAST_DEVICEINTERFACE_W dbi;
        ZeroMemory(&dbi, sizeof(dbi));
        dbi.dbcc_size = sizeof(dbi);
        dbi.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
        dbi.dbcc_classguid = GUID_DEVINTERFACE_HID;

        _glfw.win32.deviceNotificationHandle =
            RegisterDeviceNotificationW(_glfw.win32.helperWindowHandle,
                                        (DEV_BROADCAST_HDR*) &dbi,
                                        DEVICE_NOTIFY_WINDOW_HANDLE);
    }

    while (PeekMessageW(&msg, _glfw.win32.helperWindowHandle, 0, 0, PM_REMOVE))
    {
        TranslateMessage(&msg);
        DispatchMessageW(&msg);
    }

   return GLFW_TRUE;
}
示例#7
0
// Return the value corresponding to the specified attribute
//
static int findPixelFormatAttribValue(const int* attribs,
                                      int attribCount,
                                      const int* values,
                                      int attrib)
{
    int i;

    for (i = 0;  i < attribCount;  i++)
    {
        if (attribs[i] == attrib)
            return values[i];
    }

    _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                         "WGL: Unknown pixel format attribute requested");
    return 0;
}
示例#8
0
// Returns the specified attribute of the specified pixel format
//
static int getPixelFormatAttrib(_GLFWwindow* window, int pixelFormat, int attrib)
{
    int value = 0;

    assert(_glfw.wgl.ARB_pixel_format);

    if (!_glfw.wgl.GetPixelFormatAttribivARB(window->context.wgl.dc,
                                             pixelFormat,
                                             0, 1, &attrib, &value))
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "WGL: Failed to retrieve pixel format attribute");
        return 0;
    }

    return value;
}
示例#9
0
// Load necessary libraries (DLLs)
//
static GLFWbool loadLibraries(void)
{
    _glfw.win32.winmm.instance = LoadLibraryA("winmm.dll");
    if (!_glfw.win32.winmm.instance)
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, "Win32: Failed to load winmm.dll");
        return GLFW_FALSE;
    }

    _glfw.win32.winmm.GetTime = (PFN_timeGetTime)
        GetProcAddress(_glfw.win32.winmm.instance, "timeGetTime");

    _glfw.win32.user32.instance = LoadLibraryA("user32.dll");
    if (!_glfw.win32.user32.instance)
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, "Win32: Failed to load user32.dll");
        return GLFW_FALSE;
    }

    _glfw.win32.user32.SetProcessDPIAware = (PFN_SetProcessDPIAware)
        GetProcAddress(_glfw.win32.user32.instance, "SetProcessDPIAware");
    _glfw.win32.user32.ChangeWindowMessageFilterEx = (PFN_ChangeWindowMessageFilterEx)
        GetProcAddress(_glfw.win32.user32.instance, "ChangeWindowMessageFilterEx");

    _glfw.win32.dinput8.instance = LoadLibraryA("dinput8.dll");
    if (_glfw.win32.dinput8.instance)
    {
        _glfw.win32.dinput8.Create = (PFN_DirectInput8Create)
            GetProcAddress(_glfw.win32.dinput8.instance, "DirectInput8Create");
    }

    {
        int i;
        const char* names[] =
        {
            "xinput1_4.dll",
            "xinput1_3.dll",
            "xinput9_1_0.dll",
            "xinput1_2.dll",
            "xinput1_1.dll",
            NULL
        };

        for (i = 0;  names[i];  i++)
        {
            _glfw.win32.xinput.instance = LoadLibraryA(names[i]);
            if (_glfw.win32.xinput.instance)
            {
                _glfw.win32.xinput.GetCapabilities = (PFN_XInputGetCapabilities)
                    GetProcAddress(_glfw.win32.xinput.instance, "XInputGetCapabilities");
                _glfw.win32.xinput.GetState = (PFN_XInputGetState)
                    GetProcAddress(_glfw.win32.xinput.instance, "XInputGetState");

                break;
            }
        }
    }

    _glfw.win32.dwmapi.instance = LoadLibraryA("dwmapi.dll");
    if (_glfw.win32.dwmapi.instance)
    {
        _glfw.win32.dwmapi.DwmIsCompositionEnabled = (PFN_DwmIsCompositionEnabled)
            GetProcAddress(_glfw.win32.dwmapi.instance, "DwmIsCompositionEnabled");
        _glfw.win32.dwmapi.DwmFlush = (PFN_DwmFlush)
            GetProcAddress(_glfw.win32.dwmapi.instance, "DwmFlush");
    }

    _glfw.win32.shcore.instance = LoadLibraryA("shcore.dll");
    if (_glfw.win32.shcore.instance)
    {
        _glfw.win32.shcore.SetProcessDpiAwareness = (PFN_SetProcessDpiAwareness)
            GetProcAddress(_glfw.win32.shcore.instance, "SetProcessDpiAwareness");
    }

    return GLFW_TRUE;
}
示例#10
0
// Return a list of available and usable framebuffer configs
//
static int choosePixelFormat(_GLFWwindow* window,
                             const _GLFWctxconfig* ctxconfig,
                             const _GLFWfbconfig* fbconfig)
{
    _GLFWfbconfig* usableConfigs;
    const _GLFWfbconfig* closest;
    int i, pixelFormat, nativeCount, usableCount = 0, attribCount = 0;
    int attribs[40];
    int values[sizeof(attribs) / sizeof(attribs[0])];

    if (_glfw.wgl.ARB_pixel_format)
    {
        const int attrib = WGL_NUMBER_PIXEL_FORMATS_ARB;

        if (!_glfw.wgl.GetPixelFormatAttribivARB(window->context.wgl.dc,
                                                 1, 0, 1, &attrib, &nativeCount))
        {
            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                                 "WGL: Failed to retrieve pixel format attribute");
            return 0;
        }

        addAttrib(WGL_SUPPORT_OPENGL_ARB);
        addAttrib(WGL_DRAW_TO_WINDOW_ARB);
        addAttrib(WGL_PIXEL_TYPE_ARB);
        addAttrib(WGL_ACCELERATION_ARB);
        addAttrib(WGL_RED_BITS_ARB);
        addAttrib(WGL_RED_SHIFT_ARB);
        addAttrib(WGL_GREEN_BITS_ARB);
        addAttrib(WGL_GREEN_SHIFT_ARB);
        addAttrib(WGL_BLUE_BITS_ARB);
        addAttrib(WGL_BLUE_SHIFT_ARB);
        addAttrib(WGL_ALPHA_BITS_ARB);
        addAttrib(WGL_ALPHA_SHIFT_ARB);
        addAttrib(WGL_DEPTH_BITS_ARB);
        addAttrib(WGL_STENCIL_BITS_ARB);
        addAttrib(WGL_ACCUM_BITS_ARB);
        addAttrib(WGL_ACCUM_RED_BITS_ARB);
        addAttrib(WGL_ACCUM_GREEN_BITS_ARB);
        addAttrib(WGL_ACCUM_BLUE_BITS_ARB);
        addAttrib(WGL_ACCUM_ALPHA_BITS_ARB);
        addAttrib(WGL_AUX_BUFFERS_ARB);
        addAttrib(WGL_STEREO_ARB);
        addAttrib(WGL_DOUBLE_BUFFER_ARB);

        if (_glfw.wgl.ARB_multisample)
            addAttrib(WGL_SAMPLES_ARB);

        if (ctxconfig->client == GLFW_OPENGL_API)
        {
            if (_glfw.wgl.ARB_framebuffer_sRGB || _glfw.wgl.EXT_framebuffer_sRGB)
                addAttrib(WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB);
        }
        else
        {
            if (_glfw.wgl.EXT_colorspace)
                addAttrib(WGL_COLORSPACE_EXT);
        }
    }
    else
    {
        nativeCount = DescribePixelFormat(window->context.wgl.dc,
                                          1,
                                          sizeof(PIXELFORMATDESCRIPTOR),
                                          NULL);
    }

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

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

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

            if (!_glfw.wgl.GetPixelFormatAttribivARB(window->context.wgl.dc,
                                                     pixelFormat, 0,
                                                     attribCount,
                                                     attribs, values))
            {
                _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                                    "WGL: Failed to retrieve pixel format attributes");

                free(usableConfigs);
                return 0;
            }

            if (!findAttribValue(WGL_SUPPORT_OPENGL_ARB) ||
                !findAttribValue(WGL_DRAW_TO_WINDOW_ARB))
            {
                continue;
            }

            if (findAttribValue(WGL_PIXEL_TYPE_ARB) != WGL_TYPE_RGBA_ARB)
                continue;

            if (findAttribValue(WGL_ACCELERATION_ARB) == WGL_NO_ACCELERATION_ARB)
                continue;

            u->redBits = findAttribValue(WGL_RED_BITS_ARB);
            u->greenBits = findAttribValue(WGL_GREEN_BITS_ARB);
            u->blueBits = findAttribValue(WGL_BLUE_BITS_ARB);
            u->alphaBits = findAttribValue(WGL_ALPHA_BITS_ARB);

            u->depthBits = findAttribValue(WGL_DEPTH_BITS_ARB);
            u->stencilBits = findAttribValue(WGL_STENCIL_BITS_ARB);

            u->accumRedBits = findAttribValue(WGL_ACCUM_RED_BITS_ARB);
            u->accumGreenBits = findAttribValue(WGL_ACCUM_GREEN_BITS_ARB);
            u->accumBlueBits = findAttribValue(WGL_ACCUM_BLUE_BITS_ARB);
            u->accumAlphaBits = findAttribValue(WGL_ACCUM_ALPHA_BITS_ARB);

            u->auxBuffers = findAttribValue(WGL_AUX_BUFFERS_ARB);

            if (findAttribValue(WGL_STEREO_ARB))
                u->stereo = GLFW_TRUE;
            if (findAttribValue(WGL_DOUBLE_BUFFER_ARB))
                u->doublebuffer = GLFW_TRUE;

            if (_glfw.wgl.ARB_multisample)
                u->samples = findAttribValue(WGL_SAMPLES_ARB);

            if (ctxconfig->client == GLFW_OPENGL_API)
            {
                if (_glfw.wgl.ARB_framebuffer_sRGB ||
                    _glfw.wgl.EXT_framebuffer_sRGB)
                {
                    if (findAttribValue(WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB))
                        u->sRGB = GLFW_TRUE;
                }
            }
            else
            {
                if (_glfw.wgl.EXT_colorspace)
                {
                    if (findAttribValue(WGL_COLORSPACE_EXT) == WGL_COLORSPACE_SRGB_EXT)
                        u->sRGB = GLFW_TRUE;
                }
            }
        }
        else
        {
            // Get pixel format attributes through legacy PFDs

            PIXELFORMATDESCRIPTOR pfd;

            if (!DescribePixelFormat(window->context.wgl.dc,
                                     pixelFormat,
                                     sizeof(PIXELFORMATDESCRIPTOR),
                                     &pfd))
            {
                _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                                    "WGL: Failed to describe pixel format");

                free(usableConfigs);
                return 0;
            }

            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 = pixelFormat;
        usableCount++;
    }

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

        free(usableConfigs);
        return 0;
    }

    closest = _glfwChooseFBConfig(fbconfig, 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;
}
示例#11
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 (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, ctxconfig, fbconfig);
    if (!pixelFormat)
        return GLFW_FALSE;

    if (!DescribePixelFormat(window->context.wgl.dc,
                             pixelFormat, sizeof(pfd), &pfd))
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "WGL: Failed to retrieve PFD for selected pixel format");
        return GLFW_FALSE;
    }

    if (!SetPixelFormat(window->context.wgl.dc, pixelFormat, &pfd))
    {
        _glfwInputErrorWin32(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->robustness)
        {
            if (_glfw.wgl.ARB_create_context_robustness)
            {
                if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
                {
                    setAttrib(WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
                              WGL_NO_RESET_NOTIFICATION_ARB);
                }
                else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
                {
                    setAttrib(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)
                {
                    setAttrib(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB,
                              WGL_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB);
                }
                else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
                {
                    setAttrib(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB,
                              WGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB);
                }
            }
        }

        if (ctxconfig->noerror)
        {
            if (_glfw.wgl.ARB_create_context_no_error)
                setAttrib(WGL_CONTEXT_OPENGL_NO_ERROR_ARB, GLFW_TRUE);
        }

        // 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)
        {
            setAttrib(WGL_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major);
            setAttrib(WGL_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor);
        }

        if (flags)
            setAttrib(WGL_CONTEXT_FLAGS_ARB, flags);

        if (mask)
            setAttrib(WGL_CONTEXT_PROFILE_MASK_ARB, mask);

        setAttrib(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 (error == (0xc0070000 | ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB))
            {
                _glfwInputError(GLFW_INVALID_VALUE,
                                "WGL: The share context is not compatible with the requested context");
            }
            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)
        {
            _glfwInputErrorWin32(GLFW_VERSION_UNAVAILABLE,
                                 "WGL: Failed to create OpenGL context");
            return GLFW_FALSE;
        }

        if (share)
        {
            if (!wglShareLists(share, window->context.wgl.handle))
            {
                _glfwInputErrorWin32(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;
}
示例#12
0
// Initialize WGL
//
GLFWbool _glfwInitWGL(void)
{
    PIXELFORMATDESCRIPTOR pfd;
    HGLRC prc, rc;
    HDC pdc, dc;

    if (_glfw.wgl.instance)
        return GLFW_TRUE;

    _glfw.wgl.instance = LoadLibraryA("opengl32.dll");
    if (!_glfw.wgl.instance)
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "WGL: Failed to load opengl32.dll");
        return GLFW_FALSE;
    }

    _glfw.wgl.CreateContext = (PFN_wglCreateContext)
        GetProcAddress(_glfw.wgl.instance, "wglCreateContext");
    _glfw.wgl.DeleteContext = (PFN_wglDeleteContext)
        GetProcAddress(_glfw.wgl.instance, "wglDeleteContext");
    _glfw.wgl.GetProcAddress = (PFN_wglGetProcAddress)
        GetProcAddress(_glfw.wgl.instance, "wglGetProcAddress");
    _glfw.wgl.GetCurrentDC = (PFN_wglGetCurrentDC)
        GetProcAddress(_glfw.wgl.instance, "wglGetCurrentDC");
    _glfw.wgl.GetCurrentContext = (PFN_wglGetCurrentContext)
        GetProcAddress(_glfw.wgl.instance, "wglGetCurrentContext");
    _glfw.wgl.MakeCurrent = (PFN_wglMakeCurrent)
        GetProcAddress(_glfw.wgl.instance, "wglMakeCurrent");
    _glfw.wgl.ShareLists = (PFN_wglShareLists)
        GetProcAddress(_glfw.wgl.instance, "wglShareLists");

    // 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

    dc = GetDC(_glfw.win32.helperWindowHandle);

    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))
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "WGL: Failed to set pixel format for dummy context");
        return GLFW_FALSE;
    }

    rc = wglCreateContext(dc);
    if (!rc)
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "WGL: Failed to create dummy context");
        return GLFW_FALSE;
    }

    pdc = wglGetCurrentDC();
    prc = wglGetCurrentContext();

    if (!wglMakeCurrent(dc, rc))
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "WGL: Failed to make dummy context current");
        wglMakeCurrent(pdc, prc);
        wglDeleteContext(rc);
        return GLFW_FALSE;
    }

    // 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.ARB_create_context_no_error =
        extensionSupportedWGL("WGL_ARB_create_context_no_error");
    _glfw.wgl.EXT_swap_control =
        extensionSupportedWGL("WGL_EXT_swap_control");
    _glfw.wgl.EXT_colorspace =
        extensionSupportedWGL("WGL_EXT_colorspace");
    _glfw.wgl.ARB_pixel_format =
        extensionSupportedWGL("WGL_ARB_pixel_format");
    _glfw.wgl.ARB_context_flush_control =
        extensionSupportedWGL("WGL_ARB_context_flush_control");

    wglMakeCurrent(pdc, prc);
    wglDeleteContext(rc);
    return GLFW_TRUE;
}
示例#13
0
文件: win32_init.c 项目: Draghi/glfw
// Load necessary libraries (DLLs)
//
static GLFWbool loadLibraries(void)
{
    _glfw.win32.winmm.instance = LoadLibraryA("winmm.dll");
    if (!_glfw.win32.winmm.instance)
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "Win32: Failed to load winmm.dll");
        return GLFW_FALSE;
    }

    _glfw.win32.winmm.GetTime = (PFN_timeGetTime)
        GetProcAddress(_glfw.win32.winmm.instance, "timeGetTime");

    _glfw.win32.user32.instance = LoadLibraryA("user32.dll");
    if (!_glfw.win32.user32.instance)
    {
        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
                             "Win32: Failed to load user32.dll");
        return GLFW_FALSE;
    }

    _glfw.win32.user32.SetProcessDPIAware_ = (PFN_SetProcessDPIAware)
        GetProcAddress(_glfw.win32.user32.instance, "SetProcessDPIAware");
    _glfw.win32.user32.ChangeWindowMessageFilterEx_ = (PFN_ChangeWindowMessageFilterEx)
        GetProcAddress(_glfw.win32.user32.instance, "ChangeWindowMessageFilterEx");
    _glfw.win32.user32.EnableNonClientDpiScaling_ = (PFN_EnableNonClientDpiScaling)
        GetProcAddress(_glfw.win32.user32.instance, "EnableNonClientDpiScaling");
    _glfw.win32.user32.SetProcessDpiAwarenessContext_ = (PFN_SetProcessDpiAwarenessContext)
        GetProcAddress(_glfw.win32.user32.instance, "SetProcessDpiAwarenessContext");
    _glfw.win32.user32.GetDpiForWindow_ = (PFN_GetDpiForWindow)
        GetProcAddress(_glfw.win32.user32.instance, "GetDpiForWindow");
    _glfw.win32.user32.AdjustWindowRectExForDpi_ = (PFN_AdjustWindowRectExForDpi)
        GetProcAddress(_glfw.win32.user32.instance, "AdjustWindowRectExForDpi");

    _glfw.win32.dinput8.instance = LoadLibraryA("dinput8.dll");
    if (_glfw.win32.dinput8.instance)
    {
        _glfw.win32.dinput8.Create = (PFN_DirectInput8Create)
            GetProcAddress(_glfw.win32.dinput8.instance, "DirectInput8Create");
    }

    {
        int i;
        const char* names[] =
        {
            "xinput1_4.dll",
            "xinput1_3.dll",
            "xinput9_1_0.dll",
            "xinput1_2.dll",
            "xinput1_1.dll",
            NULL
        };

        for (i = 0;  names[i];  i++)
        {
            _glfw.win32.xinput.instance = LoadLibraryA(names[i]);
            if (_glfw.win32.xinput.instance)
            {
                _glfw.win32.xinput.GetCapabilities = (PFN_XInputGetCapabilities)
                    GetProcAddress(_glfw.win32.xinput.instance, "XInputGetCapabilities");
                _glfw.win32.xinput.GetState = (PFN_XInputGetState)
                    GetProcAddress(_glfw.win32.xinput.instance, "XInputGetState");

                break;
            }
        }
    }

    _glfw.win32.dwmapi.instance = LoadLibraryA("dwmapi.dll");
    if (_glfw.win32.dwmapi.instance)
    {
        _glfw.win32.dwmapi.IsCompositionEnabled = (PFN_DwmIsCompositionEnabled)
            GetProcAddress(_glfw.win32.dwmapi.instance, "DwmIsCompositionEnabled");
        _glfw.win32.dwmapi.Flush = (PFN_DwmFlush)
            GetProcAddress(_glfw.win32.dwmapi.instance, "DwmFlush");
        _glfw.win32.dwmapi.EnableBlurBehindWindow = (PFN_DwmEnableBlurBehindWindow)
            GetProcAddress(_glfw.win32.dwmapi.instance, "DwmEnableBlurBehindWindow");
    }

    _glfw.win32.shcore.instance = LoadLibraryA("shcore.dll");
    if (_glfw.win32.shcore.instance)
    {
        _glfw.win32.shcore.SetProcessDpiAwareness_ = (PFN_SetProcessDpiAwareness)
            GetProcAddress(_glfw.win32.shcore.instance, "SetProcessDpiAwareness");
        _glfw.win32.shcore.GetDpiForMonitor_ = (PFN_GetDpiForMonitor)
            GetProcAddress(_glfw.win32.shcore.instance, "GetDpiForMonitor");
    }

    _glfw.win32.ntdll.instance = LoadLibraryA("ntdll.dll");
    if (_glfw.win32.ntdll.instance)
    {
        _glfw.win32.ntdll.RtlVerifyVersionInfo_ = (PFN_RtlVerifyVersionInfo)
            GetProcAddress(_glfw.win32.ntdll.instance, "RtlVerifyVersionInfo");
    }

    return GLFW_TRUE;
}