dxmutsettingsdlg.cs

运用directX完成的坦克游戏雏形

            SurfaceDescription desc = parent.BackBufferSurfaceDescription;

            // Set up the dialog
            dialog.SetLocation(0, 0);
            dialog.SetSize(desc.Width, desc.Height);
            dialog.SetBackgroundColors(new ColorValue((float)98/255, (float)138/255, (float)206/255),
                new ColorValue((float)54/255, (float)105/255, (float)192/255),
                new ColorValue((float)54/255, (float)105/255, (float)192/255),
                new ColorValue((float)10/255, (float)73/255, (float)179/255) );

            Device device = parent.Device;
            device.BeginStateBlock();
            device.RenderState.FillMode = FillMode.Solid;
            state = device.EndStateBlock();

        }

        /// <summary>
        /// Called when the device is lost
        /// </summary>
        public void OnLostDevice()
        {
            if (state != null)
                state.Dispose();

            state = null;
        }

        /// <summary>Destroy any resources</summary>
        public void OnDestroyDevice(object sender, EventArgs e)
        {
            // Clear the focus
            Dialog.ClearFocus();
            // Unhook all the events we care about
            resolution.Changed -= new EventHandler(OnResolutionChanged);
            adapterCombo.Changed -= new EventHandler(OnAdapterChanged);
            deviceCombo.Changed -= new EventHandler(OnDeviceChanged);
            adapterFormatCombo.Changed -= new EventHandler(OnAdapterFormatChange);
            refreshCombo.Changed -= new EventHandler(OnRefreshRateChanged);
            backBufferCombo.Changed -= new EventHandler(OnBackBufferChanged);
            depthStencilCombo.Changed -= new EventHandler(OnDepthStencilChanged);
            multiSampleTypeCombo.Changed -= new EventHandler(OnMultisampleTypeChanged);
            multiSampleQualityCombo.Changed -= new EventHandler(OnMultisampleQualityChanged);
            vertexCombo.Changed -= new EventHandler(OnVertexProcessingChanged);
            presentCombo.Changed -= new EventHandler(OnPresentIntervalChanged);
            clipBox.Changed -= new EventHandler(OnClipWindowChanged);
            windowedButton.Changed -= new EventHandler(OnWindowedFullscreenChanged);
            fullscreenButton.Changed -= new EventHandler(OnWindowedFullscreenChanged);
        }

        #endregion

        /// <summary>Returns the current device information</summary>
        private EnumDeviceInformation GetCurrentDeviceInfo()
        {
            return Enumeration.GetDeviceInfo(globalSettings.AdapterOrdinal, globalSettings.DeviceType);
        }
        /// <summary>Returns the current adapter information</summary>
        private EnumAdapterInformation GetCurrentAdapterInfo()
        {
            return Enumeration.GetAdapterInformation(globalSettings.AdapterOrdinal);
        }
        /// <summary>Returns the current adapter information</summary>
        private EnumDeviceSettingsCombo GetCurrentDeviceSettingsCombo()
        {
            return Enumeration.GetDeviceSettingsCombo(globalSettings.AdapterOrdinal,
                globalSettings.DeviceType, globalSettings.AdapterFormat, 
                globalSettings.presentParams.BackBufferFormat, globalSettings.presentParams.Windowed);
        }

        // TODO: SetDeviceSettingsFromUI
        #region Update UI Methods
        /// <summary>Sets whether this is running in windowed or fullscreen mode</summary>
        private void SetWindowed(bool windowed)
        {
            windowedButton.IsChecked = windowed;
            fullscreenButton.IsChecked = !windowed;
        }
        /// <summary>Adds a resolution to the combo box</summary>
        private void AddResolution(short width, short height)
        {
            string itemText = string.Format("{0} by {1}", width, height);
            // Store the resolution in a single variable
            uint resolutionData = NativeMethods.MakeUInt32(width, height);

            // Add this item
            if (!resolution.ContainsItem(itemText))
                resolution.AddItem(itemText, resolutionData);
        }
        /// <summary>Adds a refresh rate to the combo box</summary>
        private void AddRefreshRate(int rate)
        {
            string itemText = (rate == 0) ? "Default Rate" : string.Format("{0} Hz", rate);
            // Add this item
            if (!refreshCombo.ContainsItem(itemText))
                refreshCombo.AddItem(itemText, rate);
        }
        /// <summary>Adds a vertex processing type to the combo box</summary>
        private void AddVertexProcessing(CreateFlags flags)
        {
            string itemText = "Unknown vertex processing type";
            switch(flags)
            {
                case CreateFlags.PureDevice:
                    itemText = "Pure hardware vertex processing"; break;
                case CreateFlags.HardwareVertexProcessing:
                    itemText = "Hardware vertex processing"; break;
                case CreateFlags.SoftwareVertexProcessing:
                    itemText = "Software vertex processing"; break;
                case CreateFlags.MixedVertexProcessing:
                    itemText = "Mixed vertex processing"; break;
            }
            // Add this item
            if (!vertexCombo.ContainsItem(itemText))
                vertexCombo.AddItem(itemText, flags);
        }
        #endregion

        #region Event handlers for the controls
        /// <summary>Called when the resolution changes</summary>
        private void OnResolutionChanged(object sender, EventArgs e)
        {
            ComboBox cb = sender as ComboBox;

            // Set the resolution
            uint data = (uint)cb.GetSelectedData();
            int width = NativeMethods.LoWord(data);
            int height = NativeMethods.HiWord(data);
            globalSettings.presentParams.BackBufferWidth = width;
            globalSettings.presentParams.BackBufferHeight = height;

            int refreshRate = globalSettings.presentParams.FullScreenRefreshRateInHz;

            // Update the refresh rate list
            refreshCombo.Clear();

            EnumAdapterInformation adapterInfo = GetCurrentAdapterInfo();
            Format adapterFormat = globalSettings.AdapterFormat;
            foreach(DisplayMode dm in adapterInfo.displayModeList)
            {
                if (dm.Format == adapterFormat &&
                    dm.Width == width &&
                    dm.Height == height)
                {
                    AddRefreshRate(dm.RefreshRate);
                }
            }

            // select and update
            refreshCombo.SetSelectedByData(refreshRate);
            OnRefreshRateChanged(refreshCombo, e);
        }

        /// <summary>Called when the adapter changes</summary>
        private void OnAdapterChanged(object sender, EventArgs e)
        {
            ComboBox cb = sender as ComboBox;
            // Store the adapter index
            globalSettings.AdapterOrdinal = (uint)(int)cb.GetSelectedData();

            // Remove all the items from the device type
            deviceCombo.Clear();

            // Get the adapter information
            EnumAdapterInformation adapterInfo = GetCurrentAdapterInfo();

            // Add each device type to the combo list
            foreach(EnumDeviceInformation edi in adapterInfo.deviceInfoList)
            {
                if (!deviceCombo.ContainsItem(edi.DeviceType.ToString()))
                    deviceCombo.AddItem(edi.DeviceType.ToString(), edi.DeviceType);
            }
            deviceCombo.SetSelectedByData(globalSettings.DeviceType);

            // Device type was changed update
            OnDeviceChanged(deviceCombo, e);
        }
        /// <summary>Called when the device type changes</summary>
        private void OnDeviceChanged(object sender, EventArgs e)
        {
            ComboBox cb = sender as ComboBox;
            globalSettings.DeviceType = (DeviceType)cb.GetSelectedData();

            // Update windowed/full screen radio buttons
            bool hasWindowCombo = false;
            bool hasFullscreen = false;

            EnumDeviceInformation edi = GetCurrentDeviceInfo();

            // See if there are any windowed/fullscreen combos
            foreach(EnumDeviceSettingsCombo edsc in edi.deviceSettingsList)
            {
                if (edsc.IsWindowed)
                    hasWindowCombo = true;
                else
                    hasFullscreen = true;
            }

            // Set the controls enable/disable property based on whether they are available or not
            dialog.SetControlEnable((int)SettingsDialogControlIds.Windowed, hasWindowCombo);
            dialog.SetControlEnable((int)SettingsDialogControlIds.Fullscreen, hasFullscreen);

            SetWindowed(globalSettings.presentParams.Windowed && hasWindowCombo);

            OnWindowedFullscreenChanged(null, e);
        }

        /// <summary>Called when the adapter format changes</summary>
        private void OnAdapterFormatChange(object sender, EventArgs e)
        {
            ComboBox cb = sender as ComboBox;
            Format adapterFormat = (Format)cb.GetSelectedData();

            // Resolutions
            resolution.Clear();

            EnumAdapterInformation adapterInfo = GetCurrentAdapterInfo();
            foreach(DisplayMode dm in adapterInfo.displayModeList)
            {
                if (dm.Format == adapterFormat)
                    AddResolution((short)dm.Width, (short)dm.Height);
            }

            uint currentResolution = NativeMethods.MakeUInt32(
                (short)globalSettings.presentParams.BackBufferWidth, (short)globalSettings.presentParams.BackBufferHeight);

            resolution.SetSelectedByData(currentResolution);
            // Resolution changed
            OnResolutionChanged(resolution, e);

            // Back buffer formats
            backBufferCombo.Clear();

            EnumDeviceInformation edi = GetCurrentDeviceInfo();
            bool hasWindowedBackBuffer = false;
            bool isWindowed = windowedButton.IsChecked;

            foreach(EnumDeviceSettingsCombo edsc in edi.deviceSettingsList)
            {
                if (edsc.IsWindowed == isWindowed &&
                    edsc.AdapterFormat == globalSettings.AdapterFormat)
                {
                    hasWindowedBackBuffer = true;
                    if (!backBufferCombo.ContainsItem(edsc.BackBufferFormat.ToString()))
                        backBufferCombo.AddItem(edsc.BackBufferFormat.ToString(), edsc.BackBufferFormat);
                }
            }
            // Update back buffer
            backBufferCombo.SetSelectedByData(globalSettings.presentParams.BackBufferFormat);
            OnBackBufferChanged(backBufferCombo, e);

            if (!hasWindowedBackBuffer)
            {
                dialog.SetControlEnable((int)SettingsDialogControlIds.Windowed, false);
                if (globalSettings.presentParams.Windowed)
                {
                    SetWindowed(false);
                    OnWindowedFullscreenChanged(null, e);
                }
            }
        }

        /// <summary>Called when the refresh rate changes</summary>
        private void OnRefreshRateChanged(object sender, EventArgs e)
        {
            ComboBox c = sender as ComboBox;
            globalSettings.presentParams.FullScreenRefreshRateInHz = (int)c.GetSelectedData();
        }
        
        /// <summary>Called when the back buffer format changes</summary>
        private void OnBackBufferChanged(object sender, EventArgs e)
        {
            ComboBox cb = sender as ComboBox;
            globalSettings.presentParams.BackBufferFormat = (Format)backBufferCombo.GetSelectedData();

            // Store formats
            Format adapterFormat = globalSettings.AdapterFormat;
            Format backFormat = globalSettings.presentParams.BackBufferFormat;

            EnumDeviceInformation edi = GetCurrentDeviceInfo();

            // Get possible vertex processing
            bool isAllowSoftware = Enumeration.IsSoftwareVertexProcessingPossible;
            bool isAllowHardware = Enumeration.IsHardwareVertexProcessingPossible;
            bool isAllowPure = Enumeration.IsPureHardwareVertexProcessingPossible;