diff options
| author | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-06-27 06:48:58 +0000 |
|---|---|---|
| committer | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-06-27 06:48:58 +0000 |
| commit | c9fc89a313e0955d3eb8baf3bbfd8bb7d450ad7c (patch) | |
| tree | 7419d6a1cb3c6dd289600ada4c7e5157526c2225 /Nt32Pkg/WinNtGopDxe/WinNtGopScreen.c | |
| parent | 8879d432afdfa0e4ae905857f177ddc24cb71f3b (diff) | |
| download | edk2-platforms-c9fc89a313e0955d3eb8baf3bbfd8bb7d450ad7c.tar.xz | |
Add WinNtGop driver into Nt32Pkg
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2784 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'Nt32Pkg/WinNtGopDxe/WinNtGopScreen.c')
| -rw-r--r-- | Nt32Pkg/WinNtGopDxe/WinNtGopScreen.c | 1020 |
1 files changed, 1020 insertions, 0 deletions
diff --git a/Nt32Pkg/WinNtGopDxe/WinNtGopScreen.c b/Nt32Pkg/WinNtGopDxe/WinNtGopScreen.c new file mode 100644 index 0000000000..e027071228 --- /dev/null +++ b/Nt32Pkg/WinNtGopDxe/WinNtGopScreen.c @@ -0,0 +1,1020 @@ +/** @file
+
+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:
+
+ WinNtGopScreen.c
+
+Abstract:
+
+ This file produces the graphics abstration of GOP. It is called by
+ WinNtGopDriver.c file which deals with the EFI 1.1 driver model.
+ This file just does graphics.
+
+
+**/
+//
+// The package level header files this module uses
+//
+#include <Uefi.h>
+#include <WinNtDxe.h>
+//
+// The protocols, PPI and GUID defintions for this module
+//
+#include <Guid/EventGroup.h>
+#include <Protocol/WinNtIo.h>
+#include <Protocol/ComponentName.h>
+#include <Protocol/SimpleTextIn.h>
+#include <Protocol/DriverBinding.h>
+#include <Protocol/GraphicsOutput.h>
+//
+// The Library classes this module consumes
+//
+#include <Library/DebugLib.h>
+#include <Library/BaseLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+#include "WinNtGop.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 mGopScreenExitBootServicesEvent;
+GOP_MODE_DATA mGopModeData[] = {
+ {800, 600, 0, 0},
+ {640, 480, 0, 0},
+ {720, 400, 0, 0},
+ {1024, 768, 0, 0},
+ {1280, 1024, 0, 0}
+ };
+
+EFI_STATUS
+WinNtGopStartWindow (
+ IN GOP_PRIVATE_DATA *Private,
+ IN UINT32 HorizontalResolution,
+ IN UINT32 VerticalResolution,
+ IN UINT32 ColorDepth,
+ IN UINT32 RefreshRate
+ );
+
+STATIC
+VOID
+EFIAPI
+KillNtGopThread (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ );
+
+//
+// GOP Protocol Member Functions
+//
+
+
+/**
+ Graphics Output protocol interface to get video mode
+
+ @param This Protocol instance pointer.
+ @param ModeNumber The mode number to return information on.
+ @param Info Caller allocated buffer that returns information
+ about ModeNumber.
+ @param SizeOfInfo A pointer to the size, in bytes, of the Info
+ buffer.
+
+ @retval EFI_SUCCESS Mode information returned.
+ @retval EFI_BUFFER_TOO_SMALL The Info buffer was too small.
+ @retval EFI_DEVICE_ERROR A hardware error occurred trying to retrieve the
+ video mode.
+ @retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
+ @retval EFI_INVALID_PARAMETER One of the input args was NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+WinNtGopQuerytMode (
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
+ IN UINT32 ModeNumber,
+ OUT UINTN *SizeOfInfo,
+ OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info
+ )
+{
+ GOP_PRIVATE_DATA *Private;
+
+ Private = GOP_PRIVATE_DATA_FROM_THIS (This);
+
+ if (Info == NULL || SizeOfInfo == NULL || (UINTN) ModeNumber >= This->Mode->MaxMode) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ *Info = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
+ if (*Info == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ *SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
+
+ (*Info)->Version = 0;
+ (*Info)->HorizontalResolution = Private->ModeData[ModeNumber].HorizontalResolution;
+ (*Info)->VerticalResolution = Private->ModeData[ModeNumber].VerticalResolution;
+ (*Info)->PixelFormat = PixelBlueGreenRedReserved8BitPerColor;
+ (*Info)->PixelsPerScanLine = (*Info)->HorizontalResolution;
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ Graphics Output protocol interface to set video mode
+
+ @param This Protocol instance pointer.
+ @param ModeNumber The mode number to be set.
+
+ @retval EFI_SUCCESS Graphics mode was changed.
+ @retval EFI_DEVICE_ERROR The device had an error and could not complete the
+ request.
+ @retval EFI_UNSUPPORTED ModeNumber is not supported by this device.
+
+**/
+EFI_STATUS
+EFIAPI
+WinNtGopSetMode (
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL * This,
+ IN UINT32 ModeNumber
+ )
+{
+ EFI_STATUS Status;
+ GOP_PRIVATE_DATA *Private;
+ GOP_MODE_DATA *ModeData;
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL Fill;
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *NewFillLine;
+ RECT Rect;
+ UINTN Size;
+ UINTN Width;
+ UINTN Height;
+
+ Private = GOP_PRIVATE_DATA_FROM_THIS (This);
+
+ if (ModeNumber >= This->Mode->MaxMode) {
+ return EFI_UNSUPPORTED;
+ }
+
+ if (ModeNumber == This->Mode->Mode) {
+ return EFI_SUCCESS;
+ }
+
+ ModeData = &Private->ModeData[ModeNumber];
+ This->Mode->Mode = ModeNumber;
+ Private->GraphicsOutput.Mode->Info->HorizontalResolution = ModeData->HorizontalResolution;
+ Private->GraphicsOutput.Mode->Info->VerticalResolution = ModeData->VerticalResolution;
+ Private->GraphicsOutput.Mode->Info->PixelsPerScanLine = ModeData->HorizontalResolution;
+
+ if (Private->HardwareNeedsStarting) {
+ Status = WinNtGopStartWindow (
+ Private,
+ ModeData->HorizontalResolution,
+ ModeData->VerticalResolution,
+ ModeData->ColorDepth,
+ ModeData->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 UEFI spec -EFI_GRAPHICS_OUTPUT_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 = ModeData->HorizontalResolution * ModeData->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 = ModeData->HorizontalResolution;
+ Private->VirtualScreenInfo->bV4Height = ModeData->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 = ModeData->HorizontalResolution;
+ Rect.bottom = ModeData->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_GRAPHICS_OUTPUT_BLT_PIXEL) * ModeData->HorizontalResolution);
+ if (NewFillLine == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ if (Private->FillLine != NULL) {
+ FreePool (Private->FillLine);
+ }
+
+ Private->FillLine = NewFillLine;
+
+ Fill.Red = 0x00;
+ Fill.Green = 0x00;
+ Fill.Blue = 0x00;
+ This->Blt (
+ This,
+ &Fill,
+ EfiBltVideoFill,
+ 0,
+ 0,
+ 0,
+ 0,
+ ModeData->HorizontalResolution,
+ ModeData->VerticalResolution,
+ ModeData->HorizontalResolution * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
+ );
+ return EFI_SUCCESS;
+}
+
+
+/**
+ 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.
+
+ @param This Protocol instance pointer.
+ @param X X location on graphics screen.
+ @param Y Y location on the graphics screen.
+ @param Width Width of BltBuffer.
+ @param Height Hight of BltBuffer
+ @param BltOperation Operation to perform on BltBuffer and video memory
+ @param BltBuffer Buffer containing data to blt into video buffer.
+ This buffer has a size of
+ Width*Height*sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
+ @param SourceX If the BltOperation is a EfiCopyBlt this is the
+ source of the copy. For other BLT operations this
+ argument is not used.
+ @param SourceX If the BltOperation is a EfiCopyBlt this is the
+ source of the copy. For other BLT operations this
+ argument is not used.
+
+ @retval EFI_SUCCESS The palette is updated with PaletteArray.
+ @retval EFI_INVALID_PARAMETER BltOperation is not valid.
+ @retval 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
+EFI_STATUS
+EFIAPI
+WinNtGopBlt (
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
+ IN EFI_GRAPHICS_OUTPUT_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
+ )
+{
+ GOP_PRIVATE_DATA *Private;
+ EFI_TPL OriginalTPL;
+ UINTN DstY;
+ UINTN SrcY;
+ RGBQUAD *VScreen;
+ RGBQUAD *VScreenSrc;
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Blt;
+ UINTN Index;
+ RECT Rect;
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *FillPixel;
+ UINT32 VerticalResolution;
+ UINT32 HorizontalResolution;
+
+ Private = GOP_PRIVATE_DATA_FROM_THIS (This);
+
+ if ((BltOperation < 0) || (BltOperation >= EfiGraphicsOutputBltOperationMax)) {
+ 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_GRAPHICS_OUTPUT_BLT_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.
+ //
+ VerticalResolution = This->Mode->Info->VerticalResolution;
+ HorizontalResolution = This->Mode->Info->HorizontalResolution;
+ if (BltOperation == EfiBltVideoToBltBuffer) {
+
+ //
+ // Video to BltBuffer: Source is Video, destination is BltBuffer
+ //
+ if (SourceY + Height > VerticalResolution) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (SourceX + Width > 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_GRAPHICS_OUTPUT_BLT_PIXEL *) ((UINT8 *) BltBuffer + (DstY * Delta) + DestinationX * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
+ VScreen = &Private->VirtualScreen[(VerticalResolution - SrcY - 1) * HorizontalResolution + SourceX];
+ CopyMem (Blt, VScreen, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL) * Width);
+ }
+ } else {
+ //
+ // BltBuffer to Video: Source is BltBuffer, destination is Video
+ //
+ if (DestinationY + Height > VerticalResolution) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (DestinationX + Width > 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 == EfiBltVideoFill) {
+ 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[(VerticalResolution - DstY - 1) * HorizontalResolution + DestinationX];
+ switch (BltOperation) {
+ case EfiBltBufferToVideo:
+ Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) ((UINT8 *) BltBuffer + (SrcY * Delta) + SourceX * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
+ CopyMem (VScreen, Blt, Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
+ break;
+
+ case EfiBltVideoToVideo:
+ VScreenSrc = &Private->VirtualScreen[(VerticalResolution - SrcY - 1) * HorizontalResolution + SourceX];
+ CopyMem (VScreen, VScreenSrc, Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
+ break;
+
+ case EfiBltVideoFill:
+ CopyMem (VScreen, Private->FillLine, Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
+ break;
+ }
+ }
+ }
+
+ if (BltOperation != EfiBltVideoToBltBuffer) {
+ //
+ // 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
+//
+
+
+/**
+
+
+ @return 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
+EFI_STATUS
+WinNtGopSupported (
+ IN EFI_WIN_NT_IO_PROTOCOL *WinNtIo
+ )
+{
+ //
+ // 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, &gEfiWinNtGopGuid)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ Win32 Windows event handler.
+
+ See Win32 Book
+
+ @return 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
+LRESULT
+CALLBACK
+WinNtGopThreadWindowProc (
+ IN HWND hwnd,
+ IN UINT iMsg,
+ IN WPARAM wParam,
+ IN LPARAM lParam
+ )
+{
+ GOP_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 Gop 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->GraphicsOutput.Mode->Info->HorizontalResolution * Private->GraphicsOutput.Mode->Info->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->GraphicsOutput.Mode->Info->HorizontalResolution;
+ Private->VirtualScreenInfo->bV4Height = Private->GraphicsOutput.Mode->Info->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->GraphicsOutput.Mode->Info->HorizontalResolution, // Width
+ Private->GraphicsOutput.Mode->Info->VerticalResolution, // Height
+ 0, // Source X
+ 0, // Source Y
+ 0, // DIB Start Scan Line
+ Private->GraphicsOutput.Mode->Info->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;
+ GopPrivateAddQ (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;
+ GopPrivateAddQ (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;
+ GopPrivateAddQ (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);
+}
+
+
+/**
+ This thread simulates the end of WinMain () aplication. Each Winow nededs
+ to process it's events. The messages are dispatched to
+ WinNtGopThreadWindowProc ().
+ Be very careful sine WinNtGopThreadWinMain () and WinNtGopThreadWindowProc ()
+ are running in a seperate thread. We have to do this to process the events.
+
+ @param lpParameter Handle of window to manage.
+
+ @return if a WM_QUIT message is returned exit.
+
+**/
+DWORD
+WINAPI
+WinNtGopThreadWinMain (
+ LPVOID lpParameter
+ )
+{
+ MSG Message;
+ GOP_PRIVATE_DATA *Private;
+ ATOM Atom;
+ RECT Rect;
+
+ Private = (GOP_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 = WinNtGopThreadWindowProc;
+ 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_GOP_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_GOP_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->GraphicsOutput.Mode->Info->VerticalResolution;
+ Rect.left = 0;
+ Rect.right = Private->GraphicsOutput.Mode->Info->HorizontalResolution;
+
+ Private->WinNtThunk->AdjustWindowRect (&Rect, WS_OVERLAPPEDWINDOW, 0);
+
+ Private->WindowHandle = Private->WinNtThunk->CreateWindowEx (
+ 0,
+ WIN_NT_GOP_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;
+}
+
+
+/**
+ TODO: Add function description
+
+ @param Private TODO: add argument description
+ @param HorizontalResolution TODO: add argument description
+ @param VerticalResolution TODO: add argument description
+ @param ColorDepth TODO: add argument description
+ @param RefreshRate TODO: add argument description
+
+ @return TODO: add return values
+
+**/
+EFI_STATUS
+WinNtGopStartWindow (
+ IN GOP_PRIVATE_DATA *Private,
+ IN UINT32 HorizontalResolution,
+ IN UINT32 VerticalResolution,
+ IN UINT32 ColorDepth,
+ IN UINT32 RefreshRate
+ )
+{
+ 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++;
+
+ //
+ // Register to be notified on exit boot services so we can destroy the window.
+ //
+ Status = gBS->CreateEvent (
+ EVT_SIGNAL_EXIT_BOOT_SERVICES,
+ TPL_CALLBACK,
+ KillNtGopThread,
+ Private,
+ &mGopScreenExitBootServicesEvent
+ );
+
+ Private->ThreadInited = Private->WinNtThunk->CreateSemaphore (NULL, 0, 1, NULL);
+ Private->ThreadHandle = Private->WinNtThunk->CreateThread (
+ NULL,
+ 0,
+ WinNtGopThreadWinMain,
+ (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;
+}
+
+
+/**
+
+
+ @return None
+
+**/
+// TODO: Private - add argument and description to function comment
+// TODO: EFI_SUCCESS - add return value to function comment
+EFI_STATUS
+WinNtGopConstructor (
+ GOP_PRIVATE_DATA *Private
+ )
+{
+ Private->ModeData = mGopModeData;
+
+ Private->GraphicsOutput.QueryMode = WinNtGopQuerytMode;
+ Private->GraphicsOutput.SetMode = WinNtGopSetMode;
+ Private->GraphicsOutput.Blt = WinNtGopBlt;
+
+ //
+ // Allocate buffer for Graphics Output Protocol mode information
+ //
+ Private->GraphicsOutput.Mode = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE));
+ if (Private->GraphicsOutput.Mode == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ Private->GraphicsOutput.Mode->Info = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
+ if (Private->GraphicsOutput.Mode->Info == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Private->GraphicsOutput.Mode->MaxMode = sizeof(mGopModeData) / sizeof(GOP_MODE_DATA);
+ //
+ // Till now, we have no idea about the window size.
+ //
+ Private->GraphicsOutput.Mode->Mode = GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER;
+ Private->GraphicsOutput.Mode->Info->Version = 0;
+ Private->GraphicsOutput.Mode->Info->HorizontalResolution = 0;
+ Private->GraphicsOutput.Mode->Info->VerticalResolution = 0;
+ Private->GraphicsOutput.Mode->Info->PixelFormat = PixelBltOnly;
+ Private->GraphicsOutput.Mode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
+ Private->GraphicsOutput.Mode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) NULL;
+ Private->GraphicsOutput.Mode->FrameBufferSize = 0;
+
+ Private->HardwareNeedsStarting = TRUE;
+ Private->FillLine = NULL;
+
+ WinNtGopInitializeSimpleTextInForWindow (Private);
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+
+
+ @return None
+
+**/
+// TODO: Private - add argument and description to function comment
+// TODO: EFI_SUCCESS - add return value to function comment
+EFI_STATUS
+WinNtGopDestructor (
+ GOP_PRIVATE_DATA *Private
+ )
+{
+ UINT32 UnregisterReturn;
+
+ if (!Private->HardwareNeedsStarting) {
+ //
+ // BugBug: Shutdown GOP 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
+ );
+ }
+
+ WinNtGopDestroySimpleTextInForWindow (Private);
+ }
+
+ //
+ // Free graphics output protocol occupied resource
+ //
+ if (Private->GraphicsOutput.Mode != NULL) {
+ if (Private->GraphicsOutput.Mode->Info != NULL) {
+ FreePool (Private->GraphicsOutput.Mode->Info);
+ }
+ FreePool (Private->GraphicsOutput.Mode);
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ This is the GOP screen's callback notification function for exit-boot-services.
+ All we do here is call WinNtGopDestructor().
+
+ @param Event not used
+ @param Context pointer to the Private structure.
+
+ @return None.
+
+**/
+STATIC
+VOID
+EFIAPI
+KillNtGopThread (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ Status = WinNtGopDestructor (Context);
+}
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