| /*++ | |
| Copyright (c) 2006 - 2007, Intel Corporation | |
| All rights reserved. This program and the accompanying materials | |
| are licensed and made available under the terms and conditions of the BSD License | |
| which accompanies this distribution. The full text of the license may be found at | |
| http://opensource.org/licenses/bsd-license.php | |
| THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
| WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
| Module Name: | |
| WinNtUgaScreen.c | |
| Abstract: | |
| This file produces the graphics abstration of UGA. It is called by | |
| WinNtUgaDriver.c file which deals with the EFI 1.1 driver model. | |
| This file just does graphics. | |
| --*/ | |
| #include "WinNtUga.h" | |
| EFI_WIN_NT_THUNK_PROTOCOL *mWinNt; | |
| DWORD mTlsIndex = TLS_OUT_OF_INDEXES; | |
| DWORD mTlsIndexUseCount = 0; // lets us know when we can free mTlsIndex. | |
| static EFI_EVENT mUgaScreenExitBootServicesEvent; | |
| EFI_STATUS | |
| WinNtUgaStartWindow ( | |
| IN UGA_PRIVATE_DATA *Private, | |
| IN UINT32 HorizontalResolution, | |
| IN UINT32 VerticalResolution, | |
| IN UINT32 ColorDepth, | |
| IN UINT32 RefreshRate | |
| ); | |
| STATIC | |
| VOID | |
| EFIAPI | |
| KillNtUgaThread ( | |
| IN EFI_EVENT Event, | |
| IN VOID *Context | |
| ); | |
| // | |
| // UGA Protocol Member Functions | |
| // | |
| EFI_STATUS | |
| EFIAPI | |
| WinNtUgaGetMode ( | |
| EFI_UGA_DRAW_PROTOCOL *This, | |
| UINT32 *HorizontalResolution, | |
| UINT32 *VerticalResolution, | |
| UINT32 *ColorDepth, | |
| UINT32 *RefreshRate | |
| ) | |
| /*++ | |
| Routine Description: | |
| Return the current video mode information. | |
| Arguments: | |
| This - Protocol instance pointer. | |
| HorizontalResolution - Current video horizontal resolution in pixels | |
| VerticalResolution - Current video Vertical resolution in pixels | |
| ColorDepth - Current video color depth in bits per pixel | |
| RefreshRate - Current video refresh rate in Hz. | |
| Returns: | |
| EFI_SUCCESS - Mode information returned. | |
| EFI_NOT_STARTED - Video display is not initialized. Call SetMode () | |
| EFI_INVALID_PARAMETER - One of the input args was NULL. | |
| --*/ | |
| // TODO: ADD IN/OUT description here | |
| { | |
| UGA_PRIVATE_DATA *Private; | |
| Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This); | |
| if (Private->HardwareNeedsStarting) { | |
| return EFI_NOT_STARTED; | |
| } | |
| if ((HorizontalResolution == NULL) || | |
| (VerticalResolution == NULL) || | |
| (ColorDepth == NULL) || | |
| (RefreshRate == NULL)) { | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| *HorizontalResolution = Private->HorizontalResolution; | |
| *VerticalResolution = Private->VerticalResolution; | |
| *ColorDepth = Private->ColorDepth; | |
| *RefreshRate = Private->RefreshRate; | |
| return EFI_SUCCESS; | |
| } | |
| EFI_STATUS | |
| EFIAPI | |
| WinNtUgaSetMode ( | |
| EFI_UGA_DRAW_PROTOCOL *This, | |
| UINT32 HorizontalResolution, | |
| UINT32 VerticalResolution, | |
| UINT32 ColorDepth, | |
| UINT32 RefreshRate | |
| ) | |
| /*++ | |
| Routine Description: | |
| Return the current video mode information. | |
| Arguments: | |
| This - Protocol instance pointer. | |
| HorizontalResolution - Current video horizontal resolution in pixels | |
| VerticalResolution - Current video Vertical resolution in pixels | |
| ColorDepth - Current video color depth in bits per pixel | |
| RefreshRate - Current video refresh rate in Hz. | |
| Returns: | |
| EFI_SUCCESS - Mode information returned. | |
| EFI_NOT_STARTED - Video display is not initialized. Call SetMode () | |
| EFI_INVALID_PARAMETER - One of the input args was NULL. | |
| --*/ | |
| // TODO: EFI_DEVICE_ERROR - add return value to function comment | |
| // TODO: EFI_DEVICE_ERROR - add return value to function comment | |
| // TODO: ADD IN/OUT description here | |
| { | |
| EFI_STATUS Status; | |
| UGA_PRIVATE_DATA *Private; | |
| EFI_UGA_PIXEL Fill; | |
| EFI_UGA_PIXEL *NewFillLine; | |
| RECT Rect; | |
| UINTN Size; | |
| UINTN Width; | |
| UINTN Height; | |
| Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This); | |
| if (Private->HardwareNeedsStarting) { | |
| Status = WinNtUgaStartWindow ( | |
| Private, | |
| HorizontalResolution, | |
| VerticalResolution, | |
| ColorDepth, | |
| RefreshRate | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| return EFI_DEVICE_ERROR; | |
| } | |
| Private->HardwareNeedsStarting = FALSE; | |
| } else { | |
| // | |
| // Change the resolution and resize of the window | |
| // | |
| // | |
| // Free the old buffer. We do not save the content of the old buffer since the | |
| // screen is to be cleared anyway. Clearing the screen is required by the EFI spec. | |
| // See EFI spec chepter 10.5-EFI_UGA_DRAW_PROTOCOL.SetMode() | |
| // | |
| Private->WinNtThunk->HeapFree (Private->WinNtThunk->GetProcessHeap (), 0, Private->VirtualScreenInfo); | |
| // | |
| // Allocate DIB frame buffer directly from NT for performance enhancement | |
| // This buffer is the virtual screen/frame buffer. This buffer is not the | |
| // same a a frame buffer. The first row of this buffer will be the bottom | |
| // line of the image. This is an artifact of the way we draw to the screen. | |
| // | |
| Size = HorizontalResolution * VerticalResolution * sizeof (RGBQUAD) + sizeof (BITMAPV4HEADER); | |
| Private->VirtualScreenInfo = Private->WinNtThunk->HeapAlloc ( | |
| Private->WinNtThunk->GetProcessHeap (), | |
| HEAP_ZERO_MEMORY, | |
| Size | |
| ); | |
| // | |
| // Update the virtual screen info data structure | |
| // | |
| Private->VirtualScreenInfo->bV4Size = sizeof (BITMAPV4HEADER); | |
| Private->VirtualScreenInfo->bV4Width = HorizontalResolution; | |
| Private->VirtualScreenInfo->bV4Height = VerticalResolution; | |
| Private->VirtualScreenInfo->bV4Planes = 1; | |
| Private->VirtualScreenInfo->bV4BitCount = 32; | |
| // | |
| // uncompressed | |
| // | |
| Private->VirtualScreenInfo->bV4V4Compression = BI_RGB; | |
| // | |
| // The rest of the allocated memory block is the virtual screen buffer | |
| // | |
| Private->VirtualScreen = (RGBQUAD *) (Private->VirtualScreenInfo + 1); | |
| // | |
| // Use the AdjuctWindowRect fuction to calculate the real width and height | |
| // of the new window including the border and caption | |
| // | |
| Rect.left = 0; | |
| Rect.top = 0; | |
| Rect.right = HorizontalResolution; | |
| Rect.bottom = VerticalResolution; | |
| Private->WinNtThunk->AdjustWindowRect (&Rect, WS_OVERLAPPEDWINDOW, 0); | |
| Width = Rect.right - Rect.left; | |
| Height = Rect.bottom - Rect.top; | |
| // | |
| // Retrieve the original window position information | |
| // | |
| Private->WinNtThunk->GetWindowRect (Private->WindowHandle, &Rect); | |
| // | |
| // Adjust the window size | |
| // | |
| Private->WinNtThunk->MoveWindow (Private->WindowHandle, Rect.left, Rect.top, Width, Height, TRUE); | |
| } | |
| NewFillLine = AllocatePool (sizeof (EFI_UGA_PIXEL) * HorizontalResolution); | |
| if (NewFillLine == NULL) { | |
| return EFI_DEVICE_ERROR; | |
| } | |
| if (Private->FillLine != NULL) { | |
| FreePool (Private->FillLine); | |
| } | |
| Private->FillLine = NewFillLine; | |
| Private->HorizontalResolution = HorizontalResolution; | |
| Private->VerticalResolution = VerticalResolution; | |
| Private->ColorDepth = ColorDepth; | |
| Private->RefreshRate = RefreshRate; | |
| Fill.Red = 0x00; | |
| Fill.Green = 0x00; | |
| Fill.Blue = 0x00; | |
| This->Blt ( | |
| This, | |
| &Fill, | |
| EfiUgaVideoFill, | |
| 0, | |
| 0, | |
| 0, | |
| 0, | |
| HorizontalResolution, | |
| VerticalResolution, | |
| HorizontalResolution * sizeof (EFI_UGA_PIXEL) | |
| ); | |
| return EFI_SUCCESS; | |
| } | |
| EFI_STATUS | |
| EFIAPI | |
| WinNtUgaBlt ( | |
| IN EFI_UGA_DRAW_PROTOCOL *This, | |
| IN EFI_UGA_PIXEL *BltBuffer, OPTIONAL | |
| IN EFI_UGA_BLT_OPERATION BltOperation, | |
| IN UINTN SourceX, | |
| IN UINTN SourceY, | |
| IN UINTN DestinationX, | |
| IN UINTN DestinationY, | |
| IN UINTN Width, | |
| IN UINTN Height, | |
| IN UINTN Delta OPTIONAL | |
| ) | |
| /*++ | |
| Routine Description: | |
| Blt pixels from the rectangle (Width X Height) formed by the BltBuffer | |
| onto the graphics screen starting a location (X, Y). (0, 0) is defined as | |
| the upper left hand side of the screen. (X, Y) can be outside of the | |
| current screen geometry and the BltBuffer will be cliped when it is | |
| displayed. X and Y can be negative or positive. If Width or Height is | |
| bigger than the current video screen the image will be clipped. | |
| Arguments: | |
| This - Protocol instance pointer. | |
| X - X location on graphics screen. | |
| Y - Y location on the graphics screen. | |
| Width - Width of BltBuffer. | |
| Height - Hight of BltBuffer | |
| BltOperation - Operation to perform on BltBuffer and video memory | |
| BltBuffer - Buffer containing data to blt into video buffer. This | |
| buffer has a size of Width*Height*sizeof(EFI_UGA_PIXEL) | |
| SourceX - If the BltOperation is a EfiCopyBlt this is the source | |
| of the copy. For other BLT operations this argument is not | |
| used. | |
| SourceX - If the BltOperation is a EfiCopyBlt this is the source | |
| of the copy. For other BLT operations this argument is not | |
| used. | |
| Returns: | |
| EFI_SUCCESS - The palette is updated with PaletteArray. | |
| EFI_INVALID_PARAMETER - BltOperation is not valid. | |
| EFI_DEVICE_ERROR - A hardware error occured writting to the video | |
| buffer. | |
| --*/ | |
| // TODO: SourceY - add argument and description to function comment | |
| // TODO: DestinationX - add argument and description to function comment | |
| // TODO: DestinationY - add argument and description to function comment | |
| // TODO: Delta - add argument and description to function comment | |
| { | |
| UGA_PRIVATE_DATA *Private; | |
| EFI_TPL OriginalTPL; | |
| UINTN DstY; | |
| UINTN SrcY; | |
| RGBQUAD *VScreen; | |
| RGBQUAD *VScreenSrc; | |
| EFI_UGA_PIXEL *Blt; | |
| UINTN Index; | |
| RECT Rect; | |
| EFI_UGA_PIXEL *FillPixel; | |
| Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This); | |
| if ((BltOperation < 0) || (BltOperation >= EfiUgaBltMax)) { | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| if (Width == 0 || Height == 0) { | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| // | |
| // If Delta is zero, then the entire BltBuffer is being used, so Delta | |
| // is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size, | |
| // the number of bytes in each row can be computed. | |
| // | |
| if (Delta == 0) { | |
| Delta = Width * sizeof (EFI_UGA_PIXEL); | |
| } | |
| // | |
| // We need to fill the Virtual Screen buffer with the blt data. | |
| // The virtual screen is upside down, as the first row is the bootom row of | |
| // the image. | |
| // | |
| if (BltOperation == EfiUgaVideoToBltBuffer) { | |
| // | |
| // Video to BltBuffer: Source is Video, destination is BltBuffer | |
| // | |
| if (SourceY + Height > Private->VerticalResolution) { | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| if (SourceX + Width > Private->HorizontalResolution) { | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| // | |
| // We have to raise to TPL Notify, so we make an atomic write the frame buffer. | |
| // We would not want a timer based event (Cursor, ...) to come in while we are | |
| // doing this operation. | |
| // | |
| OriginalTPL = gBS->RaiseTPL (TPL_NOTIFY); | |
| for (SrcY = SourceY, DstY = DestinationY; DstY < (Height + DestinationY); SrcY++, DstY++) { | |
| Blt = (EFI_UGA_PIXEL *) ((UINT8 *) BltBuffer + (DstY * Delta) + DestinationX * sizeof (EFI_UGA_PIXEL)); | |
| VScreen = &Private->VirtualScreen[(Private->VerticalResolution - SrcY - 1) * Private->HorizontalResolution + SourceX]; | |
| CopyMem (Blt, VScreen, sizeof (EFI_UGA_PIXEL) * Width); | |
| } | |
| } else { | |
| // | |
| // BltBuffer to Video: Source is BltBuffer, destination is Video | |
| // | |
| if (DestinationY + Height > Private->VerticalResolution) { | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| if (DestinationX + Width > Private->HorizontalResolution) { | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| // | |
| // We have to raise to TPL Notify, so we make an atomic write the frame buffer. | |
| // We would not want a timer based event (Cursor, ...) to come in while we are | |
| // doing this operation. | |
| // | |
| OriginalTPL = gBS->RaiseTPL (TPL_NOTIFY); | |
| if (BltOperation == EfiUgaVideoFill) { | |
| FillPixel = BltBuffer; | |
| for (Index = 0; Index < Width; Index++) { | |
| Private->FillLine[Index] = *FillPixel; | |
| } | |
| } | |
| for (Index = 0; Index < Height; Index++) { | |
| if (DestinationY <= SourceY) { | |
| SrcY = SourceY + Index; | |
| DstY = DestinationY + Index; | |
| } else { | |
| SrcY = SourceY + Height - Index - 1; | |
| DstY = DestinationY + Height - Index - 1; | |
| } | |
| VScreen = &Private->VirtualScreen[(Private->VerticalResolution - DstY - 1) * Private->HorizontalResolution + DestinationX]; | |
| switch (BltOperation) { | |
| case EfiUgaBltBufferToVideo: | |
| Blt = (EFI_UGA_PIXEL *) ((UINT8 *) BltBuffer + (SrcY * Delta) + SourceX * sizeof (EFI_UGA_PIXEL)); | |
| CopyMem (VScreen, Blt, Width * sizeof (EFI_UGA_PIXEL)); | |
| break; | |
| case EfiUgaVideoToVideo: | |
| VScreenSrc = &Private->VirtualScreen[(Private->VerticalResolution - SrcY - 1) * Private->HorizontalResolution + SourceX]; | |
| CopyMem (VScreen, VScreenSrc, Width * sizeof (EFI_UGA_PIXEL)); | |
| break; | |
| case EfiUgaVideoFill: | |
| CopyMem (VScreen, Private->FillLine, Width * sizeof (EFI_UGA_PIXEL)); | |
| break; | |
| } | |
| } | |
| } | |
| if (BltOperation != EfiUgaVideoToBltBuffer) { | |
| // | |
| // Mark the area we just blted as Invalid so WM_PAINT will update. | |
| // | |
| Rect.left = DestinationX; | |
| Rect.top = DestinationY; | |
| Rect.right = DestinationX + Width; | |
| Rect.bottom = DestinationY + Height; | |
| Private->WinNtThunk->InvalidateRect (Private->WindowHandle, &Rect, FALSE); | |
| // | |
| // Send the WM_PAINT message to the thread that is drawing the window. We | |
| // are in the main thread and the window drawing is in a child thread. | |
| // There is a child thread per window. We have no CriticalSection or Mutex | |
| // since we write the data and the other thread displays the data. While | |
| // we may miss some data for a short period of time this is no different than | |
| // a write combining on writes to a frame buffer. | |
| // | |
| Private->WinNtThunk->UpdateWindow (Private->WindowHandle); | |
| } | |
| gBS->RestoreTPL (OriginalTPL); | |
| return EFI_SUCCESS; | |
| } | |
| // | |
| // Construction and Destruction functions | |
| // | |
| EFI_STATUS | |
| WinNtUgaSupported ( | |
| IN EFI_WIN_NT_IO_PROTOCOL *WinNtIo | |
| ) | |
| /*++ | |
| Routine Description: | |
| Arguments: | |
| Returns: | |
| None | |
| --*/ | |
| // TODO: WinNtIo - add argument and description to function comment | |
| // TODO: EFI_UNSUPPORTED - add return value to function comment | |
| // TODO: EFI_SUCCESS - add return value to function comment | |
| { | |
| // | |
| // Check to see if the IO abstraction represents a device type we support. | |
| // | |
| // This would be replaced a check of PCI subsystem ID, etc. | |
| // | |
| if (!CompareGuid (WinNtIo->TypeGuid, &gEfiWinNtUgaGuid)) { | |
| return EFI_UNSUPPORTED; | |
| } | |
| return EFI_SUCCESS; | |
| } | |
| LRESULT | |
| CALLBACK | |
| WinNtUgaThreadWindowProc ( | |
| IN HWND hwnd, | |
| IN UINT iMsg, | |
| IN WPARAM wParam, | |
| IN LPARAM lParam | |
| ) | |
| /*++ | |
| Routine Description: | |
| Win32 Windows event handler. | |
| Arguments: | |
| See Win32 Book | |
| Returns: | |
| See Win32 Book | |
| --*/ | |
| // TODO: hwnd - add argument and description to function comment | |
| // TODO: iMsg - add argument and description to function comment | |
| // TODO: wParam - add argument and description to function comment | |
| // TODO: lParam - add argument and description to function comment | |
| { | |
| UGA_PRIVATE_DATA *Private; | |
| UINTN Size; | |
| HDC Handle; | |
| PAINTSTRUCT PaintStruct; | |
| LPARAM Index; | |
| EFI_INPUT_KEY Key; | |
| // | |
| // BugBug - if there are two instances of this DLL in memory (such as is | |
| // the case for ERM), the correct instance of this function may not be called. | |
| // This also means that the address of the mTlsIndex value will be wrong, and | |
| // the value may be wrong too. | |
| // | |
| // | |
| // Use mTlsIndex global to get a Thread Local Storage version of Private. | |
| // This works since each Uga protocol has a unique Private data instance and | |
| // a unique thread. | |
| // | |
| Private = mWinNt->TlsGetValue (mTlsIndex); | |
| ASSERT (NULL != Private); | |
| switch (iMsg) { | |
| case WM_CREATE: | |
| Size = Private->HorizontalResolution * Private->VerticalResolution * sizeof (RGBQUAD); | |
| // | |
| // Allocate DIB frame buffer directly from NT for performance enhancement | |
| // This buffer is the virtual screen/frame buffer. This buffer is not the | |
| // same a a frame buffer. The first fow of this buffer will be the bottom | |
| // line of the image. This is an artifact of the way we draw to the screen. | |
| // | |
| Private->VirtualScreenInfo = Private->WinNtThunk->HeapAlloc ( | |
| Private->WinNtThunk->GetProcessHeap (), | |
| HEAP_ZERO_MEMORY, | |
| Size | |
| ); | |
| Private->VirtualScreenInfo->bV4Size = sizeof (BITMAPV4HEADER); | |
| Private->VirtualScreenInfo->bV4Width = Private->HorizontalResolution; | |
| Private->VirtualScreenInfo->bV4Height = Private->VerticalResolution; | |
| Private->VirtualScreenInfo->bV4Planes = 1; | |
| Private->VirtualScreenInfo->bV4BitCount = 32; | |
| // | |
| // uncompressed | |
| // | |
| Private->VirtualScreenInfo->bV4V4Compression = BI_RGB; | |
| Private->VirtualScreen = (RGBQUAD *) (Private->VirtualScreenInfo + 1); | |
| return 0; | |
| case WM_PAINT: | |
| // | |
| // I have not found a way to convert hwnd into a Private context. So for | |
| // now we use this API to convert hwnd to Private data. | |
| // | |
| Handle = mWinNt->BeginPaint (hwnd, &PaintStruct); | |
| mWinNt->SetDIBitsToDevice ( | |
| Handle, // Destination Device Context | |
| 0, // Destination X - 0 | |
| 0, // Destination Y - 0 | |
| Private->HorizontalResolution, // Width | |
| Private->VerticalResolution, // Height | |
| 0, // Source X | |
| 0, // Source Y | |
| 0, // DIB Start Scan Line | |
| Private->VerticalResolution, // Number of scan lines | |
| Private->VirtualScreen, // Address of array of DIB bits | |
| (BITMAPINFO *) Private->VirtualScreenInfo, // Address of structure with bitmap info | |
| DIB_RGB_COLORS // RGB or palette indexes | |
| ); | |
| mWinNt->EndPaint (hwnd, &PaintStruct); | |
| return 0; | |
| // | |
| // F10 and the ALT key do not create a WM_KEYDOWN message, thus this special case | |
| // | |
| case WM_SYSKEYDOWN: | |
| Key.ScanCode = 0; | |
| switch (wParam) { | |
| case VK_F10: | |
| Key.ScanCode = SCAN_F10; | |
| Key.UnicodeChar = 0; | |
| UgaPrivateAddQ (Private, Key); | |
| return 0; | |
| } | |
| break; | |
| case WM_KEYDOWN: | |
| Key.ScanCode = 0; | |
| switch (wParam) { | |
| case VK_HOME: Key.ScanCode = SCAN_HOME; break; | |
| case VK_END: Key.ScanCode = SCAN_END; break; | |
| case VK_LEFT: Key.ScanCode = SCAN_LEFT; break; | |
| case VK_RIGHT: Key.ScanCode = SCAN_RIGHT; break; | |
| case VK_UP: Key.ScanCode = SCAN_UP; break; | |
| case VK_DOWN: Key.ScanCode = SCAN_DOWN; break; | |
| case VK_DELETE: Key.ScanCode = SCAN_DELETE; break; | |
| case VK_INSERT: Key.ScanCode = SCAN_INSERT; break; | |
| case VK_PRIOR: Key.ScanCode = SCAN_PAGE_UP; break; | |
| case VK_NEXT: Key.ScanCode = SCAN_PAGE_DOWN; break; | |
| case VK_ESCAPE: Key.ScanCode = SCAN_ESC; break; | |
| case VK_F1: Key.ScanCode = SCAN_F1; break; | |
| case VK_F2: Key.ScanCode = SCAN_F2; break; | |
| case VK_F3: Key.ScanCode = SCAN_F3; break; | |
| case VK_F4: Key.ScanCode = SCAN_F4; break; | |
| case VK_F5: Key.ScanCode = SCAN_F5; break; | |
| case VK_F6: Key.ScanCode = SCAN_F6; break; | |
| case VK_F7: Key.ScanCode = SCAN_F7; break; | |
| case VK_F8: Key.ScanCode = SCAN_F8; break; | |
| case VK_F9: Key.ScanCode = SCAN_F9; break; | |
| case VK_F11: Key.ScanCode = SCAN_F11; break; | |
| case VK_F12: Key.ScanCode = SCAN_F12; break; | |
| } | |
| if (Key.ScanCode != 0) { | |
| Key.UnicodeChar = 0; | |
| UgaPrivateAddQ (Private, Key); | |
| } | |
| return 0; | |
| case WM_CHAR: | |
| // | |
| // The ESC key also generate WM_CHAR. | |
| // | |
| if (wParam == 0x1B) { | |
| return 0; | |
| } | |
| for (Index = 0; Index < (lParam & 0xffff); Index++) { | |
| if (wParam != 0) { | |
| Key.UnicodeChar = (CHAR16) wParam; | |
| Key.ScanCode = 0; | |
| UgaPrivateAddQ (Private, Key); | |
| } | |
| } | |
| return 0; | |
| case WM_CLOSE: | |
| // | |
| // This close message is issued by user, core is not aware of this, | |
| // so don't release the window display resource, just hide the window. | |
| // | |
| Private->WinNtThunk->ShowWindow (Private->WindowHandle, SW_HIDE); | |
| return 0; | |
| case WM_DESTROY: | |
| mWinNt->DestroyWindow (hwnd); | |
| mWinNt->PostQuitMessage (0); | |
| mWinNt->HeapFree (Private->WinNtThunk->GetProcessHeap (), 0, Private->VirtualScreenInfo); | |
| mWinNt->ExitThread (0); | |
| return 0; | |
| default: | |
| break; | |
| }; | |
| return mWinNt->DefWindowProc (hwnd, iMsg, wParam, lParam); | |
| } | |
| DWORD | |
| WINAPI | |
| WinNtUgaThreadWinMain ( | |
| LPVOID lpParameter | |
| ) | |
| /*++ | |
| Routine Description: | |
| This thread simulates the end of WinMain () aplication. Each Winow nededs | |
| to process it's events. The messages are dispatched to | |
| WinNtUgaThreadWindowProc (). | |
| Be very careful sine WinNtUgaThreadWinMain () and WinNtUgaThreadWindowProc () | |
| are running in a seperate thread. We have to do this to process the events. | |
| Arguments: | |
| lpParameter - Handle of window to manage. | |
| Returns: | |
| if a WM_QUIT message is returned exit. | |
| --*/ | |
| { | |
| MSG Message; | |
| UGA_PRIVATE_DATA *Private; | |
| ATOM Atom; | |
| RECT Rect; | |
| Private = (UGA_PRIVATE_DATA *) lpParameter; | |
| ASSERT (NULL != Private); | |
| // | |
| // Since each thread has unique private data, save the private data in Thread | |
| // Local Storage slot. Then the shared global mTlsIndex can be used to get | |
| // thread specific context. | |
| // | |
| Private->WinNtThunk->TlsSetValue (mTlsIndex, Private); | |
| Private->ThreadId = Private->WinNtThunk->GetCurrentThreadId (); | |
| Private->WindowsClass.cbSize = sizeof (WNDCLASSEX); | |
| Private->WindowsClass.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; | |
| Private->WindowsClass.lpfnWndProc = WinNtUgaThreadWindowProc; | |
| Private->WindowsClass.cbClsExtra = 0; | |
| Private->WindowsClass.cbWndExtra = 0; | |
| Private->WindowsClass.hInstance = NULL; | |
| Private->WindowsClass.hIcon = Private->WinNtThunk->LoadIcon (NULL, IDI_APPLICATION); | |
| Private->WindowsClass.hCursor = Private->WinNtThunk->LoadCursor (NULL, IDC_ARROW); | |
| Private->WindowsClass.hbrBackground = (HBRUSH) COLOR_WINDOW; | |
| Private->WindowsClass.lpszMenuName = NULL; | |
| Private->WindowsClass.lpszClassName = WIN_NT_UGA_CLASS_NAME; | |
| Private->WindowsClass.hIconSm = Private->WinNtThunk->LoadIcon (NULL, IDI_APPLICATION); | |
| // | |
| // This call will fail after the first time, but thats O.K. since we only need | |
| // WIN_NT_UGA_CLASS_NAME to exist to create the window. | |
| // | |
| // Note: Multiple instances of this DLL will use the same instance of this | |
| // Class, including the callback function, unless the Class is unregistered and | |
| // successfully registered again. | |
| // | |
| Atom = Private->WinNtThunk->RegisterClassEx (&Private->WindowsClass); | |
| // | |
| // Setting Rect values to allow for the AdjustWindowRect to provide | |
| // us the correct sizes for the client area when doing the CreateWindowEx | |
| // | |
| Rect.top = 0; | |
| Rect.bottom = Private->VerticalResolution; | |
| Rect.left = 0; | |
| Rect.right = Private->HorizontalResolution; | |
| Private->WinNtThunk->AdjustWindowRect (&Rect, WS_OVERLAPPEDWINDOW, 0); | |
| Private->WindowHandle = Private->WinNtThunk->CreateWindowEx ( | |
| 0, | |
| WIN_NT_UGA_CLASS_NAME, | |
| Private->WindowName, | |
| WS_OVERLAPPEDWINDOW, | |
| CW_USEDEFAULT, | |
| CW_USEDEFAULT, | |
| Rect.right - Rect.left, | |
| Rect.bottom - Rect.top, | |
| NULL, | |
| NULL, | |
| NULL, | |
| &Private | |
| ); | |
| // | |
| // The reset of this thread is the standard winows program. We need a sperate | |
| // thread since we must process the message loop to make windows act like | |
| // windows. | |
| // | |
| Private->WinNtThunk->ShowWindow (Private->WindowHandle, SW_SHOW); | |
| Private->WinNtThunk->UpdateWindow (Private->WindowHandle); | |
| // | |
| // Let the main thread get some work done | |
| // | |
| Private->WinNtThunk->ReleaseSemaphore (Private->ThreadInited, 1, NULL); | |
| // | |
| // This is the message loop that all Windows programs need. | |
| // | |
| while (Private->WinNtThunk->GetMessage (&Message, Private->WindowHandle, 0, 0)) { | |
| Private->WinNtThunk->TranslateMessage (&Message); | |
| Private->WinNtThunk->DispatchMessage (&Message); | |
| } | |
| return Message.wParam; | |
| } | |
| EFI_STATUS | |
| WinNtUgaStartWindow ( | |
| IN UGA_PRIVATE_DATA *Private, | |
| IN UINT32 HorizontalResolution, | |
| IN UINT32 VerticalResolution, | |
| IN UINT32 ColorDepth, | |
| IN UINT32 RefreshRate | |
| ) | |
| /*++ | |
| Routine Description: | |
| TODO: Add function description | |
| Arguments: | |
| Private - TODO: add argument description | |
| HorizontalResolution - TODO: add argument description | |
| VerticalResolution - TODO: add argument description | |
| ColorDepth - TODO: add argument description | |
| RefreshRate - TODO: add argument description | |
| Returns: | |
| TODO: add return values | |
| --*/ | |
| { | |
| EFI_STATUS Status; | |
| DWORD NewThreadId; | |
| mWinNt = Private->WinNtThunk; | |
| // | |
| // Initialize a Thread Local Storge variable slot. We use TLS to get the | |
| // correct Private data instance into the windows thread. | |
| // | |
| if (mTlsIndex == TLS_OUT_OF_INDEXES) { | |
| ASSERT (0 == mTlsIndexUseCount); | |
| mTlsIndex = Private->WinNtThunk->TlsAlloc (); | |
| } | |
| // | |
| // always increase the use count! | |
| // | |
| mTlsIndexUseCount++; | |
| Private->HorizontalResolution = HorizontalResolution; | |
| Private->VerticalResolution = VerticalResolution; | |
| // | |
| // Register to be notified on exit boot services so we can destroy the window. | |
| // | |
| Status = gBS->CreateEvent ( | |
| EVT_SIGNAL_EXIT_BOOT_SERVICES, | |
| TPL_CALLBACK, | |
| KillNtUgaThread, | |
| Private, | |
| &mUgaScreenExitBootServicesEvent | |
| ); | |
| Private->ThreadInited = Private->WinNtThunk->CreateSemaphore (NULL, 0, 1, NULL); | |
| Private->ThreadHandle = Private->WinNtThunk->CreateThread ( | |
| NULL, | |
| 0, | |
| WinNtUgaThreadWinMain, | |
| (VOID *) Private, | |
| 0, | |
| &NewThreadId | |
| ); | |
| // | |
| // The other thread has entered the windows message loop so we can | |
| // continue our initialization. | |
| // | |
| Private->WinNtThunk->WaitForSingleObject (Private->ThreadInited, INFINITE); | |
| Private->WinNtThunk->CloseHandle (Private->ThreadInited); | |
| return Status; | |
| } | |
| EFI_STATUS | |
| WinNtUgaConstructor ( | |
| UGA_PRIVATE_DATA *Private | |
| ) | |
| /*++ | |
| Routine Description: | |
| Arguments: | |
| Returns: | |
| None | |
| --*/ | |
| // TODO: Private - add argument and description to function comment | |
| // TODO: EFI_SUCCESS - add return value to function comment | |
| { | |
| Private->UgaDraw.GetMode = WinNtUgaGetMode; | |
| Private->UgaDraw.SetMode = WinNtUgaSetMode; | |
| Private->UgaDraw.Blt = WinNtUgaBlt; | |
| Private->HardwareNeedsStarting = TRUE; | |
| Private->FillLine = NULL; | |
| WinNtUgaInitializeSimpleTextInForWindow (Private); | |
| return EFI_SUCCESS; | |
| } | |
| EFI_STATUS | |
| WinNtUgaDestructor ( | |
| UGA_PRIVATE_DATA *Private | |
| ) | |
| /*++ | |
| Routine Description: | |
| Arguments: | |
| Returns: | |
| None | |
| --*/ | |
| // TODO: Private - add argument and description to function comment | |
| // TODO: EFI_SUCCESS - add return value to function comment | |
| { | |
| UINT32 UnregisterReturn; | |
| if (!Private->HardwareNeedsStarting) { | |
| // | |
| // BugBug: Shutdown Uga Hardware and any child devices. | |
| // | |
| Private->WinNtThunk->SendMessage (Private->WindowHandle, WM_DESTROY, 0, 0); | |
| Private->WinNtThunk->CloseHandle (Private->ThreadHandle); | |
| mTlsIndexUseCount--; | |
| // | |
| // The callback function for another window could still be called, | |
| // so we need to make sure there are no more users of mTlsIndex. | |
| // | |
| if (0 == mTlsIndexUseCount) { | |
| ASSERT (TLS_OUT_OF_INDEXES != mTlsIndex); | |
| Private->WinNtThunk->TlsFree (mTlsIndex); | |
| mTlsIndex = TLS_OUT_OF_INDEXES; | |
| UnregisterReturn = Private->WinNtThunk->UnregisterClass ( | |
| Private->WindowsClass.lpszClassName, | |
| Private->WindowsClass.hInstance | |
| ); | |
| } | |
| WinNtUgaDestroySimpleTextInForWindow (Private); | |
| } | |
| return EFI_SUCCESS; | |
| } | |
| STATIC | |
| VOID | |
| EFIAPI | |
| KillNtUgaThread ( | |
| IN EFI_EVENT Event, | |
| IN VOID *Context | |
| ) | |
| /*++ | |
| Routine Description: | |
| This is the UGA screen's callback notification function for exit-boot-services. | |
| All we do here is call WinNtUgaDestructor(). | |
| Arguments: | |
| Event - not used | |
| Context - pointer to the Private structure. | |
| Returns: | |
| None. | |
| --*/ | |
| { | |
| EFI_STATUS Status; | |
| Status = WinNtUgaDestructor (Context); | |
| } |