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mirror_edk2/MdeModulePkg/Universal/Console/GraphicsConsoleDxe/GraphicsConsole.c

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/** @file
This is the main routine for initializing the Graphics Console support routines.
Copyright (c) 2006 - 2009 Intel Corporation. <BR>
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.
**/
#include "GraphicsConsole.h"
//
// Graphics Console Device Private Data template
//
GRAPHICS_CONSOLE_DEV mGraphicsConsoleDevTemplate = {
GRAPHICS_CONSOLE_DEV_SIGNATURE,
(EFI_GRAPHICS_OUTPUT_PROTOCOL *) NULL,
(EFI_UGA_DRAW_PROTOCOL *) NULL,
{
GraphicsConsoleConOutReset,
GraphicsConsoleConOutOutputString,
GraphicsConsoleConOutTestString,
GraphicsConsoleConOutQueryMode,
GraphicsConsoleConOutSetMode,
GraphicsConsoleConOutSetAttribute,
GraphicsConsoleConOutClearScreen,
GraphicsConsoleConOutSetCursorPosition,
GraphicsConsoleConOutEnableCursor,
(EFI_SIMPLE_TEXT_OUTPUT_MODE *) NULL
},
{
0,
0,
EFI_TEXT_ATTR(EFI_LIGHTGRAY, EFI_BLACK),
0,
0,
TRUE
},
{
{ 80, 25, 0, 0, 0, 0 }, // Mode 0
{ 80, 50, 0, 0, 0, 0 }, // Mode 1
{ 100,31, 0, 0, 0, 0 }, // Mode 2
{ 0, 0, 0, 0, 0, 0 } // Mode 3
},
(EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) NULL
};
EFI_HII_DATABASE_PROTOCOL *mHiiDatabase;
EFI_HII_FONT_PROTOCOL *mHiiFont;
EFI_HII_HANDLE mHiiHandle;
EFI_EVENT mHiiRegistration;
EFI_GUID mFontPackageListGuid = {0xf5f219d3, 0x7006, 0x4648, {0xac, 0x8d, 0xd6, 0x1d, 0xfb, 0x7b, 0xc6, 0xad}};
CHAR16 mCrLfString[3] = { CHAR_CARRIAGE_RETURN, CHAR_LINEFEED, CHAR_NULL };
EFI_GRAPHICS_OUTPUT_BLT_PIXEL mGraphicsEfiColors[16] = {
//
// B G R reserved
//
{0x00, 0x00, 0x00, 0x00}, // BLACK
{0x98, 0x00, 0x00, 0x00}, // LIGHTBLUE
{0x00, 0x98, 0x00, 0x00}, // LIGHGREEN
{0x98, 0x98, 0x00, 0x00}, // LIGHCYAN
{0x00, 0x00, 0x98, 0x00}, // LIGHRED
{0x98, 0x00, 0x98, 0x00}, // MAGENTA
{0x00, 0x98, 0x98, 0x00}, // BROWN
{0x98, 0x98, 0x98, 0x00}, // LIGHTGRAY
{0x30, 0x30, 0x30, 0x00}, // DARKGRAY - BRIGHT BLACK
{0xff, 0x00, 0x00, 0x00}, // BLUE
{0x00, 0xff, 0x00, 0x00}, // LIME
{0xff, 0xff, 0x00, 0x00}, // CYAN
{0x00, 0x00, 0xff, 0x00}, // RED
{0xff, 0x00, 0xff, 0x00}, // FUCHSIA
{0x00, 0xff, 0xff, 0x00}, // YELLOW
{0xff, 0xff, 0xff, 0x00} // WHITE
};
EFI_NARROW_GLYPH mCursorGlyph = {
0x0000,
0x00,
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF }
};
CHAR16 SpaceStr[] = { NARROW_CHAR, ' ', 0 };
EFI_DRIVER_BINDING_PROTOCOL gGraphicsConsoleDriverBinding = {
GraphicsConsoleControllerDriverSupported,
GraphicsConsoleControllerDriverStart,
GraphicsConsoleControllerDriverStop,
0xa,
NULL,
NULL
};
/**
Test to see if Graphics Console could be supported on the Controller.
Graphics Console could be supported if Graphics Output Protocol or UGA Draw
Protocol exists on the Controller. (UGA Draw Protocol could be skipped
if PcdUgaConsumeSupport is set to FALSE.)
@param This Protocol instance pointer.
@param Controller Handle of device to test.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver supports this device.
@retval other This driver does not support this device.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleControllerDriverSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
GraphicsOutput = NULL;
UgaDraw = NULL;
//
// Open the IO Abstraction(s) needed to perform the supported test
//
Status = gBS->OpenProtocol (
Controller,
&gEfiGraphicsOutputProtocolGuid,
(VOID **) &GraphicsOutput,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status) && FeaturePcdGet (PcdUgaConsumeSupport)) {
//
// Open Graphics Output Protocol failed, try to open UGA Draw Protocol
//
Status = gBS->OpenProtocol (
Controller,
&gEfiUgaDrawProtocolGuid,
(VOID **) &UgaDraw,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
}
if (EFI_ERROR (Status)) {
return Status;
}
//
// We need to ensure that we do not layer on top of a virtual handle.
// We need to ensure that the handles produced by the conspliter do not
// get used.
//
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &DevicePath,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (!EFI_ERROR (Status)) {
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
} else {
goto Error;
}
//
// Does Hii Exist? If not, we aren't ready to run
//
Status = EfiLocateHiiProtocol ();
//
// Close the I/O Abstraction(s) used to perform the supported test
//
Error:
if (GraphicsOutput != NULL) {
gBS->CloseProtocol (
Controller,
&gEfiGraphicsOutputProtocolGuid,
This->DriverBindingHandle,
Controller
);
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
gBS->CloseProtocol (
Controller,
&gEfiUgaDrawProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
return Status;
}
/**
Start this driver on Controller by opening Graphics Output protocol or
UGA Draw protocol, and installing Simple Text Out protocol on Controller.
(UGA Draw protocol could be skipped if PcdUgaConsumeSupport is set to FALSE.)
@param This Protocol instance pointer.
@param Controller Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver is added to Controller.
@retval other This driver does not support this device.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleControllerDriverStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
GRAPHICS_CONSOLE_DEV *Private;
UINT32 HorizontalResolution;
UINT32 VerticalResolution;
UINT32 ColorDepth;
UINT32 RefreshRate;
UINTN MaxMode;
UINTN Columns;
UINTN Rows;
UINT32 ModeNumber;
EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *Mode;
ModeNumber = 0;
//
// Initialize the Graphics Console device instance
//
Private = AllocateCopyPool (
sizeof (GRAPHICS_CONSOLE_DEV),
&mGraphicsConsoleDevTemplate
);
if (Private == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Private->SimpleTextOutput.Mode = &(Private->SimpleTextOutputMode);
Status = gBS->OpenProtocol (
Controller,
&gEfiGraphicsOutputProtocolGuid,
(VOID **) &Private->GraphicsOutput,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR(Status) && FeaturePcdGet (PcdUgaConsumeSupport)) {
Status = gBS->OpenProtocol (
Controller,
&gEfiUgaDrawProtocolGuid,
(VOID **) &Private->UgaDraw,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
}
if (EFI_ERROR (Status)) {
goto Error;
}
//
// If the current mode information can not be retrieved, then attempt to set the default mode
// of 800x600, 32 bit color, 60 Hz refresh.
//
HorizontalResolution = 800;
VerticalResolution = 600;
if (Private->GraphicsOutput != NULL) {
//
// The console is build on top of Graphics Output Protocol, find the mode number
// for the user-defined mode; if there are multiple video devices,
// graphic console driver will set all the video devices to the same mode.
//
Status = CheckModeSupported (
Private->GraphicsOutput,
CURRENT_HORIZONTAL_RESOLUTION,
CURRENT_VERTICAL_RESOLUTION,
&ModeNumber
);
if (!EFI_ERROR(Status)) {
//
// Update default mode to current mode
//
HorizontalResolution = CURRENT_HORIZONTAL_RESOLUTION;
VerticalResolution = CURRENT_VERTICAL_RESOLUTION;
} else {
//
// if not supporting current mode, try 800x600 which is required by UEFI/EFI spec
//
Status = CheckModeSupported (
Private->GraphicsOutput,
800,
600,
&ModeNumber
);
}
Mode = Private->GraphicsOutput->Mode;
if (EFI_ERROR (Status) || (Mode->MaxMode != 0)) {
//
// Set default mode failed or device don't support default mode, then get the current mode information
//
HorizontalResolution = Mode->Info->HorizontalResolution;
VerticalResolution = Mode->Info->VerticalResolution;
ModeNumber = Mode->Mode;
}
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
//
// At first try to set user-defined resolution
//
ColorDepth = 32;
RefreshRate = 60;
Status = Private->UgaDraw->SetMode (
Private->UgaDraw,
CURRENT_HORIZONTAL_RESOLUTION,
CURRENT_VERTICAL_RESOLUTION,
ColorDepth,
RefreshRate
);
if (!EFI_ERROR (Status)) {
HorizontalResolution = CURRENT_HORIZONTAL_RESOLUTION;
VerticalResolution = CURRENT_VERTICAL_RESOLUTION;
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
//
// Try to set 800*600 which is required by UEFI/EFI spec
//
Status = Private->UgaDraw->SetMode (
Private->UgaDraw,
HorizontalResolution,
VerticalResolution,
ColorDepth,
RefreshRate
);
if (EFI_ERROR (Status)) {
Status = Private->UgaDraw->GetMode (
Private->UgaDraw,
&HorizontalResolution,
&VerticalResolution,
&ColorDepth,
&RefreshRate
);
if (EFI_ERROR (Status)) {
goto Error;
}
}
} else {
Status = EFI_UNSUPPORTED;
goto Error;
}
}
//
// Compute the maximum number of text Rows and Columns that this current graphics mode can support
//
Columns = HorizontalResolution / EFI_GLYPH_WIDTH;
Rows = VerticalResolution / EFI_GLYPH_HEIGHT;
//
// See if the mode is too small to support the required 80x25 text mode
//
if (Columns < 80 || Rows < 25) {
goto Error;
}
//
// Add Mode #0 that must be 80x25
//
MaxMode = 0;
Private->ModeData[MaxMode].GopWidth = HorizontalResolution;
Private->ModeData[MaxMode].GopHeight = VerticalResolution;
Private->ModeData[MaxMode].GopModeNumber = ModeNumber;
Private->ModeData[MaxMode].DeltaX = (HorizontalResolution - (80 * EFI_GLYPH_WIDTH)) >> 1;
Private->ModeData[MaxMode].DeltaY = (VerticalResolution - (25 * EFI_GLYPH_HEIGHT)) >> 1;
MaxMode++;
//
// If it is possible to support Mode #1 - 80x50, than add it as an active mode
//
if (Rows >= 50) {
Private->ModeData[MaxMode].GopWidth = HorizontalResolution;
Private->ModeData[MaxMode].GopHeight = VerticalResolution;
Private->ModeData[MaxMode].GopModeNumber = ModeNumber;
Private->ModeData[MaxMode].DeltaX = (HorizontalResolution - (80 * EFI_GLYPH_WIDTH)) >> 1;
Private->ModeData[MaxMode].DeltaY = (VerticalResolution - (50 * EFI_GLYPH_HEIGHT)) >> 1;
MaxMode++;
}
//
// If it is not to support Mode #1 - 80x50, then skip it
//
if (MaxMode < 2) {
Private->ModeData[MaxMode].Columns = 0;
Private->ModeData[MaxMode].Rows = 0;
Private->ModeData[MaxMode].GopWidth = HorizontalResolution;
Private->ModeData[MaxMode].GopHeight = VerticalResolution;
Private->ModeData[MaxMode].GopModeNumber = ModeNumber;
Private->ModeData[MaxMode].DeltaX = 0;
Private->ModeData[MaxMode].DeltaY = 0;
MaxMode++;
}
//
// Add Mode #2 that must be 100x31 (graphic mode >= 800x600)
//
if (Columns >= 100 && Rows >= 31) {
Private->ModeData[MaxMode].GopWidth = HorizontalResolution;
Private->ModeData[MaxMode].GopHeight = VerticalResolution;
Private->ModeData[MaxMode].GopModeNumber = ModeNumber;
Private->ModeData[MaxMode].DeltaX = (HorizontalResolution - (100 * EFI_GLYPH_WIDTH)) >> 1;
Private->ModeData[MaxMode].DeltaY = (VerticalResolution - (31 * EFI_GLYPH_HEIGHT)) >> 1;
MaxMode++;
}
//
// Add Mode #3 that uses the entire display for user-defined mode
//
if (HorizontalResolution > 800 && VerticalResolution > 600) {
Private->ModeData[MaxMode].Columns = HorizontalResolution/EFI_GLYPH_WIDTH;
Private->ModeData[MaxMode].Rows = VerticalResolution/EFI_GLYPH_HEIGHT;
Private->ModeData[MaxMode].GopWidth = HorizontalResolution;
Private->ModeData[MaxMode].GopHeight = VerticalResolution;
Private->ModeData[MaxMode].GopModeNumber = ModeNumber;
Private->ModeData[MaxMode].DeltaX = (HorizontalResolution % EFI_GLYPH_WIDTH) >> 1;
Private->ModeData[MaxMode].DeltaY = (VerticalResolution % EFI_GLYPH_HEIGHT) >> 1;
MaxMode++;
}
//
// Update the maximum number of modes
//
Private->SimpleTextOutputMode.MaxMode = (INT32) MaxMode;
//
// Determine the number of text modes that this protocol can support
//
Status = GraphicsConsoleConOutSetMode (&Private->SimpleTextOutput, 0);
if (EFI_ERROR (Status)) {
goto Error;
}
DEBUG_CODE_BEGIN ();
GraphicsConsoleConOutOutputString (&Private->SimpleTextOutput, (CHAR16 *)L"Graphics Console Started\n\r");
DEBUG_CODE_END ();
//
// Install protocol interfaces for the Graphics Console device.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&Controller,
&gEfiSimpleTextOutProtocolGuid,
&Private->SimpleTextOutput,
NULL
);
Error:
if (EFI_ERROR (Status)) {
//
// Close the GOP and UGA Draw Protocol
//
if (Private->GraphicsOutput != NULL) {
gBS->CloseProtocol (
Controller,
&gEfiGraphicsOutputProtocolGuid,
This->DriverBindingHandle,
Controller
);
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
gBS->CloseProtocol (
Controller,
&gEfiUgaDrawProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
if (Private->LineBuffer != NULL) {
FreePool (Private->LineBuffer);
}
//
// Free private data
//
FreePool (Private);
}
return Status;
}
/**
Stop this driver on Controller by removing Simple Text Out protocol
and closing the Graphics Output Protocol or UGA Draw protocol on Controller.
(UGA Draw protocol could be skipped if PcdUgaConsumeSupport is set to FALSE.)
@param This Protocol instance pointer.
@param Controller Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed Controller.
@retval EFI_NOT_STARTED Simple Text Out protocol could not be found the
Controller.
@retval other This driver was not removed from this device.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleControllerDriverStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *SimpleTextOutput;
GRAPHICS_CONSOLE_DEV *Private;
Status = gBS->OpenProtocol (
Controller,
&gEfiSimpleTextOutProtocolGuid,
(VOID **) &SimpleTextOutput,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_NOT_STARTED;
}
Private = GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS (SimpleTextOutput);
Status = gBS->UninstallProtocolInterface (
Controller,
&gEfiSimpleTextOutProtocolGuid,
&Private->SimpleTextOutput
);
if (!EFI_ERROR (Status)) {
//
// Close the GOP or UGA IO Protocol
//
if (Private->GraphicsOutput != NULL) {
gBS->CloseProtocol (
Controller,
&gEfiGraphicsOutputProtocolGuid,
This->DriverBindingHandle,
Controller
);
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
gBS->CloseProtocol (
Controller,
&gEfiUgaDrawProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
if (Private->LineBuffer != NULL) {
FreePool (Private->LineBuffer);
}
//
// Free our instance data
//
FreePool (Private);
}
return Status;
}
/**
Check if the current specific mode supported the user defined resolution
for the Graphics Console device based on Graphics Output Protocol.
If yes, set the graphic devcice's current mode to this specific mode.
@param GraphicsOutput Graphics Output Protocol instance pointer.
@param HorizontalResolution User defined horizontal resolution
@param VerticalResolution User defined vertical resolution.
@param CurrentModeNumber Current specific mode to be check.
@retval EFI_SUCCESS The mode is supported.
@retval EFI_UNSUPPORTED The specific mode is out of range of graphics
device supported.
@retval other The specific mode does not support user defined
resolution or failed to set the current mode to the
specific mode on graphics device.
**/
EFI_STATUS
CheckModeSupported (
EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput,
IN UINT32 HorizontalResolution,
IN UINT32 VerticalResolution,
OUT UINT32 *CurrentModeNumber
)
{
UINT32 ModeNumber;
EFI_STATUS Status;
UINTN SizeOfInfo;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
UINT32 MaxMode;
Status = EFI_SUCCESS;
MaxMode = GraphicsOutput->Mode->MaxMode;
for (ModeNumber = 0; ModeNumber < MaxMode; ModeNumber++) {
Status = GraphicsOutput->QueryMode (
GraphicsOutput,
ModeNumber,
&SizeOfInfo,
&Info
);
if (!EFI_ERROR (Status)) {
if ((Info->HorizontalResolution == HorizontalResolution) &&
(Info->VerticalResolution == VerticalResolution)) {
Status = GraphicsOutput->SetMode (GraphicsOutput, ModeNumber);
if (!EFI_ERROR (Status)) {
FreePool (Info);
break;
}
}
FreePool (Info);
}
}
if (ModeNumber == GraphicsOutput->Mode->MaxMode) {
Status = EFI_UNSUPPORTED;
}
*CurrentModeNumber = ModeNumber;
return Status;
}
/**
Locate HII Database protocol and HII Font protocol.
@retval EFI_SUCCESS HII Database protocol and HII Font protocol
are located successfully.
@return other Failed to locate HII Database protocol or
HII Font protocol.
**/
EFI_STATUS
EfiLocateHiiProtocol (
VOID
)
{
EFI_HANDLE Handle;
UINTN Size;
EFI_STATUS Status;
//
// There should only be one - so buffer size is this
//
Size = sizeof (EFI_HANDLE);
Status = gBS->LocateHandle (
ByProtocol,
&gEfiHiiDatabaseProtocolGuid,
NULL,
&Size,
(VOID **) &Handle
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->HandleProtocol (
Handle,
&gEfiHiiDatabaseProtocolGuid,
(VOID **) &mHiiDatabase
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->HandleProtocol (
Handle,
&gEfiHiiFontProtocolGuid,
(VOID **) &mHiiFont
);
return Status;
}
//
// Body of the STO functions
//
/**
Reset the text output device hardware and optionally run diagnostics.
Implements SIMPLE_TEXT_OUTPUT.Reset().
If ExtendeVerification is TRUE, then perform dependent Graphics Console
device reset, and set display mode to mode 0.
If ExtendedVerification is FALSE, only set display mode to mode 0.
@param This Protocol instance pointer.
@param ExtendedVerification Indicates that the driver may perform a more
exhaustive verification operation of the device
during reset.
@retval EFI_SUCCESS The text output device was reset.
@retval EFI_DEVICE_ERROR The text output device is not functioning correctly and
could not be reset.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleConOutReset (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
This->SetAttribute (This, EFI_TEXT_ATTR (This->Mode->Attribute & 0x0F, EFI_BACKGROUND_BLACK));
return This->SetMode (This, 0);
}
/**
Write a Unicode string to the output device.
Implements SIMPLE_TEXT_OUTPUT.OutputString().
The Unicode string will be converted to Glyphs and will be
sent to the Graphics Console.
@param This Protocol instance pointer.
@param WString The NULL-terminated Unicode string to be displayed
on the output device(s). All output devices must
also support the Unicode drawing defined in this file.
@retval EFI_SUCCESS The string was output to the device.
@retval EFI_DEVICE_ERROR The device reported an error while attempting to output
the text.
@retval EFI_UNSUPPORTED The output device's mode is not currently in a
defined text mode.
@retval EFI_WARN_UNKNOWN_GLYPH This warning code indicates that some of the
characters in the Unicode string could not be
rendered and were skipped.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleConOutOutputString (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN CHAR16 *WString
)
{
GRAPHICS_CONSOLE_DEV *Private;
EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
INTN Mode;
UINTN MaxColumn;
UINTN MaxRow;
UINTN Width;
UINTN Height;
UINTN Delta;
EFI_STATUS Status;
BOOLEAN Warning;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background;
UINTN DeltaX;
UINTN DeltaY;
UINTN Count;
UINTN Index;
INT32 OriginAttribute;
EFI_TPL OldTpl;
Status = EFI_SUCCESS;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
//
// Current mode
//
Mode = This->Mode->Mode;
Private = GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS (This);
GraphicsOutput = Private->GraphicsOutput;
UgaDraw = Private->UgaDraw;
MaxColumn = Private->ModeData[Mode].Columns;
MaxRow = Private->ModeData[Mode].Rows;
DeltaX = Private->ModeData[Mode].DeltaX;
DeltaY = Private->ModeData[Mode].DeltaY;
Width = MaxColumn * EFI_GLYPH_WIDTH;
Height = (MaxRow - 1) * EFI_GLYPH_HEIGHT;
Delta = Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL);
//
// The Attributes won't change when during the time OutputString is called
//
GetTextColors (This, &Foreground, &Background);
EraseCursor (This);
Warning = FALSE;
//
// Backup attribute
//
OriginAttribute = This->Mode->Attribute;
while (*WString != L'\0') {
if (*WString == CHAR_BACKSPACE) {
//
// If the cursor is at the left edge of the display, then move the cursor
// one row up.
//
if (This->Mode->CursorColumn == 0 && This->Mode->CursorRow > 0) {
This->Mode->CursorRow--;
This->Mode->CursorColumn = (INT32) (MaxColumn - 1);
This->OutputString (This, SpaceStr);
EraseCursor (This);
This->Mode->CursorRow--;
This->Mode->CursorColumn = (INT32) (MaxColumn - 1);
} else if (This->Mode->CursorColumn > 0) {
//
// If the cursor is not at the left edge of the display, then move the cursor
// left one column.
//
This->Mode->CursorColumn--;
This->OutputString (This, SpaceStr);
EraseCursor (This);
This->Mode->CursorColumn--;
}
WString++;
} else if (*WString == CHAR_LINEFEED) {
//
// If the cursor is at the bottom of the display, then scroll the display one
// row, and do not update the cursor position. Otherwise, move the cursor
// down one row.
//
if (This->Mode->CursorRow == (INT32) (MaxRow - 1)) {
if (GraphicsOutput != NULL) {
//
// Scroll Screen Up One Row
//
GraphicsOutput->Blt (
GraphicsOutput,
NULL,
EfiBltVideoToVideo,
DeltaX,
DeltaY + EFI_GLYPH_HEIGHT,
DeltaX,
DeltaY,
Width,
Height,
Delta
);
//
// Print Blank Line at last line
//
GraphicsOutput->Blt (
GraphicsOutput,
&Background,
EfiBltVideoFill,
0,
0,
DeltaX,
DeltaY + Height,
Width,
EFI_GLYPH_HEIGHT,
Delta
);
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
//
// Scroll Screen Up One Row
//
UgaDraw->Blt (
UgaDraw,
NULL,
EfiUgaVideoToVideo,
DeltaX,
DeltaY + EFI_GLYPH_HEIGHT,
DeltaX,
DeltaY,
Width,
Height,
Delta
);
//
// Print Blank Line at last line
//
UgaDraw->Blt (
UgaDraw,
(EFI_UGA_PIXEL *) (UINTN) &Background,
EfiUgaVideoFill,
0,
0,
DeltaX,
DeltaY + Height,
Width,
EFI_GLYPH_HEIGHT,
Delta
);
}
} else {
This->Mode->CursorRow++;
}
WString++;
} else if (*WString == CHAR_CARRIAGE_RETURN) {
//
// Move the cursor to the beginning of the current row.
//
This->Mode->CursorColumn = 0;
WString++;
} else if (*WString == WIDE_CHAR) {
This->Mode->Attribute |= EFI_WIDE_ATTRIBUTE;
WString++;
} else if (*WString == NARROW_CHAR) {
This->Mode->Attribute &= (~ (UINT32) EFI_WIDE_ATTRIBUTE);
WString++;
} else {
//
// Print the character at the current cursor position and move the cursor
// right one column. If this moves the cursor past the right edge of the
// display, then the line should wrap to the beginning of the next line. This
// is equivalent to inserting a CR and an LF. Note that if the cursor is at the
// bottom of the display, and the line wraps, then the display will be scrolled
// one line.
// If wide char is going to be displayed, need to display one character at a time
// Or, need to know the display length of a certain string.
//
// Index is used to determine how many character width units (wide = 2, narrow = 1)
// Count is used to determine how many characters are used regardless of their attributes
//
for (Count = 0, Index = 0; (This->Mode->CursorColumn + Index) < MaxColumn; Count++, Index++) {
if (WString[Count] == CHAR_NULL ||
WString[Count] == CHAR_BACKSPACE ||
WString[Count] == CHAR_LINEFEED ||
WString[Count] == CHAR_CARRIAGE_RETURN ||
WString[Count] == WIDE_CHAR ||
WString[Count] == NARROW_CHAR) {
break;
}
//
// Is the wide attribute on?
//
if ((This->Mode->Attribute & EFI_WIDE_ATTRIBUTE) != 0) {
//
// If wide, add one more width unit than normal since we are going to increment at the end of the for loop
//
Index++;
//
// This is the end-case where if we are at column 79 and about to print a wide character
// We should prevent this from happening because we will wrap inappropriately. We should
// not print this character until the next line.
//
if ((This->Mode->CursorColumn + Index + 1) > MaxColumn) {
Index++;
break;
}
}
}
Status = DrawUnicodeWeightAtCursorN (This, WString, Count);
if (EFI_ERROR (Status)) {
Warning = TRUE;
}
//
// At the end of line, output carriage return and line feed
//
WString += Count;
This->Mode->CursorColumn += (INT32) Index;
if (This->Mode->CursorColumn > (INT32) MaxColumn) {
This->Mode->CursorColumn -= 2;
This->OutputString (This, SpaceStr);
}
if (This->Mode->CursorColumn >= (INT32) MaxColumn) {
EraseCursor (This);
This->OutputString (This, mCrLfString);
EraseCursor (This);
}
}
}
This->Mode->Attribute = OriginAttribute;
EraseCursor (This);
if (Warning) {
Status = EFI_WARN_UNKNOWN_GLYPH;
}
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Verifies that all characters in a Unicode string can be output to the
target device.
Implements SIMPLE_TEXT_OUTPUT.TestString().
If one of the characters in the *Wstring is neither valid valid Unicode
drawing characters, not ASCII code, then this function will return
EFI_UNSUPPORTED
@param This Protocol instance pointer.
@param WString The NULL-terminated Unicode string to be examined for the output
device(s).
@retval EFI_SUCCESS The device(s) are capable of rendering the output string.
@retval EFI_UNSUPPORTED Some of the characters in the Unicode string cannot be
rendered by one or more of the output devices mapped
by the EFI handle.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleConOutTestString (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN CHAR16 *WString
)
{
EFI_STATUS Status;
UINT16 Count;
EFI_IMAGE_OUTPUT *Blt;
Blt = NULL;
Count = 0;
while (WString[Count] != 0) {
Status = mHiiFont->GetGlyph (
mHiiFont,
WString[Count],
NULL,
&Blt,
NULL
);
if (Blt != NULL) {
FreePool (Blt);
Blt = NULL;
}
Count++;
if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED;
}
}
return EFI_SUCCESS;
}
/**
Returns information for an available text mode that the output device(s)
supports
Implements SIMPLE_TEXT_OUTPUT.QueryMode().
It returnes information for an available text mode that the Graphics Console supports.
In this driver,we only support text mode 80x25, which is defined as mode 0.
@param This Protocol instance pointer.
@param ModeNumber The mode number to return information on.
@param Columns The returned columns of the requested mode.
@param Rows The returned rows of the requested mode.
@retval EFI_SUCCESS The requested mode information is returned.
@retval EFI_UNSUPPORTED The mode number is not valid.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleConOutQueryMode (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN ModeNumber,
OUT UINTN *Columns,
OUT UINTN *Rows
)
{
GRAPHICS_CONSOLE_DEV *Private;
EFI_STATUS Status;
EFI_TPL OldTpl;
if (ModeNumber >= (UINTN) This->Mode->MaxMode) {
return EFI_UNSUPPORTED;
}
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Status = EFI_SUCCESS;
Private = GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS (This);
*Columns = Private->ModeData[ModeNumber].Columns;
*Rows = Private->ModeData[ModeNumber].Rows;
if (*Columns <= 0 && *Rows <= 0) {
Status = EFI_UNSUPPORTED;
goto Done;
}
Done:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Sets the output device(s) to a specified mode.
Implements SIMPLE_TEXT_OUTPUT.SetMode().
Set the Graphics Console to a specified mode. In this driver, we only support mode 0.
@param This Protocol instance pointer.
@param ModeNumber The text mode to set.
@retval EFI_SUCCESS The requested text mode is set.
@retval EFI_DEVICE_ERROR The requested text mode cannot be set because of
Graphics Console device error.
@retval EFI_UNSUPPORTED The text mode number is not valid.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleConOutSetMode (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN ModeNumber
)
{
EFI_STATUS Status;
GRAPHICS_CONSOLE_DEV *Private;
GRAPHICS_CONSOLE_MODE_DATA *ModeData;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *NewLineBuffer;
UINT32 HorizontalResolution;
UINT32 VerticalResolution;
EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
UINT32 ColorDepth;
UINT32 RefreshRate;
EFI_TPL OldTpl;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Private = GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS (This);
GraphicsOutput = Private->GraphicsOutput;
UgaDraw = Private->UgaDraw;
ModeData = &(Private->ModeData[ModeNumber]);
if (ModeData->Columns <= 0 && ModeData->Rows <= 0) {
Status = EFI_UNSUPPORTED;
goto Done;
}
//
// Make sure the requested mode number is supported
//
if (ModeNumber >= (UINTN) This->Mode->MaxMode) {
Status = EFI_UNSUPPORTED;
goto Done;
}
if (ModeData->Columns <= 0 && ModeData->Rows <= 0) {
Status = EFI_UNSUPPORTED;
goto Done;
}
//
// Attempt to allocate a line buffer for the requested mode number
//
NewLineBuffer = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL) * ModeData->Columns * EFI_GLYPH_WIDTH * EFI_GLYPH_HEIGHT);
if (NewLineBuffer == NULL) {
//
// The new line buffer could not be allocated, so return an error.
// No changes to the state of the current console have been made, so the current console is still valid
//
Status = EFI_OUT_OF_RESOURCES;
goto Done;
}
//
// If the mode has been set at least one other time, then LineBuffer will not be NULL
//
if (Private->LineBuffer != NULL) {
//
// Clear the current text window on the current graphics console
//
This->ClearScreen (This);
//
// If the new mode is the same as the old mode, then just return EFI_SUCCESS
//
if ((INT32) ModeNumber == This->Mode->Mode) {
FreePool (NewLineBuffer);
Status = EFI_SUCCESS;
goto Done;
}
//
// Otherwise, the size of the text console and/or the GOP/UGA mode will be changed,
// so erase the cursor, and free the LineBuffer for the current mode
//
EraseCursor (This);
FreePool (Private->LineBuffer);
}
//
// Assign the current line buffer to the newly allocated line buffer
//
Private->LineBuffer = NewLineBuffer;
if (GraphicsOutput != NULL) {
if (ModeData->GopModeNumber != GraphicsOutput->Mode->Mode) {
//
// Either no graphics mode is currently set, or it is set to the wrong resolution, so set the new graphics mode
//
Status = GraphicsOutput->SetMode (GraphicsOutput, ModeData->GopModeNumber);
if (EFI_ERROR (Status)) {
//
// The mode set operation failed
//
goto Done;
}
} else {
//
// The current graphics mode is correct, so simply clear the entire display
//
Status = GraphicsOutput->Blt (
GraphicsOutput,
&mGraphicsEfiColors[0],
EfiBltVideoFill,
0,
0,
0,
0,
ModeData->GopWidth,
ModeData->GopHeight,
0
);
}
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
//
// Get the current UGA Draw mode information
//
Status = UgaDraw->GetMode (
UgaDraw,
&HorizontalResolution,
&VerticalResolution,
&ColorDepth,
&RefreshRate
);
if (EFI_ERROR (Status) || HorizontalResolution != ModeData->GopWidth || VerticalResolution != ModeData->GopHeight) {
//
// Either no graphics mode is currently set, or it is set to the wrong resolution, so set the new graphics mode
//
Status = UgaDraw->SetMode (
UgaDraw,
ModeData->GopWidth,
ModeData->GopHeight,
32,
60
);
if (EFI_ERROR (Status)) {
//
// The mode set operation failed
//
goto Done;
}
} else {
//
// The current graphics mode is correct, so simply clear the entire display
//
Status = UgaDraw->Blt (
UgaDraw,
(EFI_UGA_PIXEL *) (UINTN) &mGraphicsEfiColors[0],
EfiUgaVideoFill,
0,
0,
0,
0,
ModeData->GopWidth,
ModeData->GopHeight,
0
);
}
}
//
// The new mode is valid, so commit the mode change
//
This->Mode->Mode = (INT32) ModeNumber;
//
// Move the text cursor to the upper left hand corner of the display and enable it
//
This->SetCursorPosition (This, 0, 0);
Status = EFI_SUCCESS;
Done:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Sets the background and foreground colors for the OutputString () and
ClearScreen () functions.
Implements SIMPLE_TEXT_OUTPUT.SetAttribute().
@param This Protocol instance pointer.
@param Attribute The attribute to set. Bits 0..3 are the foreground
color, and bits 4..6 are the background color.
All other bits are undefined and must be zero.
@retval EFI_SUCCESS The requested attribute is set.
@retval EFI_DEVICE_ERROR The requested attribute cannot be set due to Graphics Console port error.
@retval EFI_UNSUPPORTED The attribute requested is not defined.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleConOutSetAttribute (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN Attribute
)
{
EFI_TPL OldTpl;
if ((Attribute | 0xFF) != 0xFF) {
return EFI_UNSUPPORTED;
}
if ((INT32) Attribute == This->Mode->Attribute) {
return EFI_SUCCESS;
}
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
EraseCursor (This);
This->Mode->Attribute = (INT32) Attribute;
EraseCursor (This);
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
/**
Clears the output device(s) display to the currently selected background
color.
Implements SIMPLE_TEXT_OUTPUT.ClearScreen().
@param This Protocol instance pointer.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR The device had an error and could not complete the request.
@retval EFI_UNSUPPORTED The output device is not in a valid text mode.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleConOutClearScreen (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This
)
{
EFI_STATUS Status;
GRAPHICS_CONSOLE_DEV *Private;
GRAPHICS_CONSOLE_MODE_DATA *ModeData;
EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background;
EFI_TPL OldTpl;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Private = GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS (This);
GraphicsOutput = Private->GraphicsOutput;
UgaDraw = Private->UgaDraw;
ModeData = &(Private->ModeData[This->Mode->Mode]);
GetTextColors (This, &Foreground, &Background);
if (GraphicsOutput != NULL) {
Status = GraphicsOutput->Blt (
GraphicsOutput,
&Background,
EfiBltVideoFill,
0,
0,
0,
0,
ModeData->GopWidth,
ModeData->GopHeight,
0
);
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
Status = UgaDraw->Blt (
UgaDraw,
(EFI_UGA_PIXEL *) (UINTN) &Background,
EfiUgaVideoFill,
0,
0,
0,
0,
ModeData->GopWidth,
ModeData->GopHeight,
0
);
} else {
Status = EFI_UNSUPPORTED;
}
This->Mode->CursorColumn = 0;
This->Mode->CursorRow = 0;
EraseCursor (This);
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Sets the current coordinates of the cursor position.
Implements SIMPLE_TEXT_OUTPUT.SetCursorPosition().
@param This Protocol instance pointer.
@param Column The position to set the cursor to. Must be greater than or
equal to zero and less than the number of columns and rows
by QueryMode ().
@param Row The position to set the cursor to. Must be greater than or
equal to zero and less than the number of columns and rows
by QueryMode ().
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR The device had an error and could not complete the request.
@retval EFI_UNSUPPORTED The output device is not in a valid text mode, or the
cursor position is invalid for the current mode.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleConOutSetCursorPosition (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN Column,
IN UINTN Row
)
{
GRAPHICS_CONSOLE_DEV *Private;
GRAPHICS_CONSOLE_MODE_DATA *ModeData;
EFI_STATUS Status;
EFI_TPL OldTpl;
Status = EFI_SUCCESS;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Private = GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS (This);
ModeData = &(Private->ModeData[This->Mode->Mode]);
if ((Column >= ModeData->Columns) || (Row >= ModeData->Rows)) {
Status = EFI_UNSUPPORTED;
goto Done;
}
if ((This->Mode->CursorColumn == (INT32) Column) && (This->Mode->CursorRow == (INT32) Row)) {
Status = EFI_SUCCESS;
goto Done;
}
EraseCursor (This);
This->Mode->CursorColumn = (INT32) Column;
This->Mode->CursorRow = (INT32) Row;
EraseCursor (This);
Done:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Makes the cursor visible or invisible.
Implements SIMPLE_TEXT_OUTPUT.EnableCursor().
@param This Protocol instance pointer.
@param Visible If TRUE, the cursor is set to be visible, If FALSE,
the cursor is set to be invisible.
@retval EFI_SUCCESS The operation completed successfully.
**/
EFI_STATUS
EFIAPI
GraphicsConsoleConOutEnableCursor (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN BOOLEAN Visible
)
{
EFI_TPL OldTpl;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
EraseCursor (This);
This->Mode->CursorVisible = Visible;
EraseCursor (This);
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
/**
Gets Graphics Console devcie's foreground color and background color.
@param This Protocol instance pointer.
@param Foreground Returned text foreground color.
@param Background Returned text background color.
@retval EFI_SUCCESS It returned always.
**/
EFI_STATUS
GetTextColors (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Foreground,
OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Background
)
{
INTN Attribute;
Attribute = This->Mode->Attribute & 0x7F;
*Foreground = mGraphicsEfiColors[Attribute & 0x0f];
*Background = mGraphicsEfiColors[Attribute >> 4];
return EFI_SUCCESS;
}
/**
Draw Unicode string on the Graphics Console device's screen.
@param This Protocol instance pointer.
@param UnicodeWeight One Unicode string to be displayed.
@param Count The count of Unicode string.
@retval EFI_OUT_OF_RESOURCES If no memory resource to use.
@retval EFI_UNSUPPORTED If no Graphics Output protocol and UGA Draw
protocol exist.
@retval EFI_SUCCESS Drawing Unicode string implemented successfully.
**/
EFI_STATUS
DrawUnicodeWeightAtCursorN (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN CHAR16 *UnicodeWeight,
IN UINTN Count
)
{
EFI_STATUS Status;
GRAPHICS_CONSOLE_DEV *Private;
EFI_IMAGE_OUTPUT *Blt;
EFI_STRING String;
EFI_FONT_DISPLAY_INFO *FontInfo;
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
EFI_HII_ROW_INFO *RowInfoArray;
UINTN RowInfoArraySize;
Private = GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS (This);
Blt = (EFI_IMAGE_OUTPUT *) AllocateZeroPool (sizeof (EFI_IMAGE_OUTPUT));
if (Blt == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Blt->Width = (UINT16) (Private->ModeData[This->Mode->Mode].GopWidth);
Blt->Height = (UINT16) (Private->ModeData[This->Mode->Mode].GopHeight);
String = AllocateCopyPool ((Count + 1) * sizeof (CHAR16), UnicodeWeight);
if (String == NULL) {
FreePool (Blt);
return EFI_OUT_OF_RESOURCES;
}
//
// Set the end character
//
*(String + Count) = L'\0';
FontInfo = (EFI_FONT_DISPLAY_INFO *) AllocateZeroPool (sizeof (EFI_FONT_DISPLAY_INFO));
if (FontInfo == NULL) {
FreePool (Blt);
FreePool (String);
return EFI_OUT_OF_RESOURCES;
}
//
// Get current foreground and background colors.
//
GetTextColors (This, &FontInfo->ForegroundColor, &FontInfo->BackgroundColor);
if (Private->GraphicsOutput != NULL) {
//
// If Graphics Output protocol exists, using HII Font protocol to draw.
//
Blt->Image.Screen = Private->GraphicsOutput;
Status = mHiiFont->StringToImage (
mHiiFont,
EFI_HII_IGNORE_IF_NO_GLYPH | EFI_HII_DIRECT_TO_SCREEN | EFI_HII_IGNORE_LINE_BREAK,
String,
FontInfo,
&Blt,
This->Mode->CursorColumn * EFI_GLYPH_WIDTH + Private->ModeData[This->Mode->Mode].DeltaX,
This->Mode->CursorRow * EFI_GLYPH_HEIGHT + Private->ModeData[This->Mode->Mode].DeltaY,
NULL,
NULL,
NULL
);
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
//
// If Graphics Output protocol cannot be found and PcdUgaConsumeSupport enabled,
// using UGA Draw protocol to draw.
//
ASSERT (Private->UgaDraw!= NULL);
UgaDraw = Private->UgaDraw;
Blt->Image.Bitmap = AllocateZeroPool (Blt->Width * Blt->Height * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
if (Blt->Image.Bitmap == NULL) {
FreePool (Blt);
FreePool (String);
return EFI_OUT_OF_RESOURCES;
}
RowInfoArray = NULL;
//
// StringToImage only support blt'ing image to device using GOP protocol. If GOP is not supported in this platform,
// we ask StringToImage to print the string to blt buffer, then blt to device using UgaDraw.
//
Status = mHiiFont->StringToImage (
mHiiFont,
EFI_HII_IGNORE_IF_NO_GLYPH | EFI_HII_IGNORE_LINE_BREAK,
String,
FontInfo,
&Blt,
This->Mode->CursorColumn * EFI_GLYPH_WIDTH + Private->ModeData[This->Mode->Mode].DeltaX,
This->Mode->CursorRow * EFI_GLYPH_HEIGHT + Private->ModeData[This->Mode->Mode].DeltaY,
&RowInfoArray,
&RowInfoArraySize,
NULL
);
if (!EFI_ERROR (Status)) {
//
// Line breaks are handled by caller of DrawUnicodeWeightAtCursorN, so the updated parameter RowInfoArraySize by StringToImage will
// always be 1 or 0 (if there is no valid Unicode Char can be printed). ASSERT here to make sure.
//
ASSERT (RowInfoArraySize <= 1);
Status = UgaDraw->Blt (
UgaDraw,
(EFI_UGA_PIXEL *) Blt->Image.Bitmap,
EfiUgaBltBufferToVideo,
This->Mode->CursorColumn * EFI_GLYPH_WIDTH + Private->ModeData[This->Mode->Mode].DeltaX,
(This->Mode->CursorRow) * EFI_GLYPH_HEIGHT + Private->ModeData[This->Mode->Mode].DeltaY,
This->Mode->CursorColumn * EFI_GLYPH_WIDTH + Private->ModeData[This->Mode->Mode].DeltaX,
(This->Mode->CursorRow) * EFI_GLYPH_HEIGHT + Private->ModeData[This->Mode->Mode].DeltaY,
RowInfoArray[0].LineWidth,
RowInfoArray[0].LineHeight,
Blt->Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
);
}
FreePool (RowInfoArray);
FreePool (Blt->Image.Bitmap);
} else {
Status = EFI_UNSUPPORTED;
}
if (Blt != NULL) {
FreePool (Blt);
}
if (String != NULL) {
FreePool (String);
}
if (FontInfo != NULL) {
FreePool (FontInfo);
}
return Status;
}
/**
Erase the cursor on the screen.
@param This Protocol instance pointer.
@retval EFI_SUCCESS The cursor is erased successfully.
**/
EFI_STATUS
EraseCursor (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This
)
{
GRAPHICS_CONSOLE_DEV *Private;
EFI_SIMPLE_TEXT_OUTPUT_MODE *CurrentMode;
INTN GlyphX;
INTN GlyphY;
EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION Foreground;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION Background;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION BltChar[EFI_GLYPH_HEIGHT][EFI_GLYPH_WIDTH];
UINTN PosX;
UINTN PosY;
CurrentMode = This->Mode;
if (!CurrentMode->CursorVisible) {
return EFI_SUCCESS;
}
Private = GRAPHICS_CONSOLE_CON_OUT_DEV_FROM_THIS (This);
GraphicsOutput = Private->GraphicsOutput;
UgaDraw = Private->UgaDraw;
//
// In this driver, only narrow character was supported.
//
//
// Blt a character to the screen
//
GlyphX = (CurrentMode->CursorColumn * EFI_GLYPH_WIDTH) + Private->ModeData[CurrentMode->Mode].DeltaX;
GlyphY = (CurrentMode->CursorRow * EFI_GLYPH_HEIGHT) + Private->ModeData[CurrentMode->Mode].DeltaY;
if (GraphicsOutput != NULL) {
GraphicsOutput->Blt (
GraphicsOutput,
(EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) BltChar,
EfiBltVideoToBltBuffer,
GlyphX,
GlyphY,
0,
0,
EFI_GLYPH_WIDTH,
EFI_GLYPH_HEIGHT,
EFI_GLYPH_WIDTH * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
);
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
UgaDraw->Blt (
UgaDraw,
(EFI_UGA_PIXEL *) (UINTN) BltChar,
EfiUgaVideoToBltBuffer,
GlyphX,
GlyphY,
0,
0,
EFI_GLYPH_WIDTH,
EFI_GLYPH_HEIGHT,
EFI_GLYPH_WIDTH * sizeof (EFI_UGA_PIXEL)
);
}
GetTextColors (This, &Foreground.Pixel, &Background.Pixel);
//
// Convert Monochrome bitmap of the Glyph to BltBuffer structure
//
for (PosY = 0; PosY < EFI_GLYPH_HEIGHT; PosY++) {
for (PosX = 0; PosX < EFI_GLYPH_WIDTH; PosX++) {
if ((mCursorGlyph.GlyphCol1[PosY] & (BIT0 << PosX)) != 0) {
BltChar[PosY][EFI_GLYPH_WIDTH - PosX - 1].Raw ^= Foreground.Raw;
}
}
}
if (GraphicsOutput != NULL) {
GraphicsOutput->Blt (
GraphicsOutput,
(EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) BltChar,
EfiBltBufferToVideo,
0,
0,
GlyphX,
GlyphY,
EFI_GLYPH_WIDTH,
EFI_GLYPH_HEIGHT,
EFI_GLYPH_WIDTH * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
);
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
UgaDraw->Blt (
UgaDraw,
(EFI_UGA_PIXEL *) (UINTN) BltChar,
EfiUgaBltBufferToVideo,
0,
0,
GlyphX,
GlyphY,
EFI_GLYPH_WIDTH,
EFI_GLYPH_HEIGHT,
EFI_GLYPH_WIDTH * sizeof (EFI_UGA_PIXEL)
);
}
return EFI_SUCCESS;
}
VOID
EFIAPI
RegisterFontPackage (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
EFI_HII_SIMPLE_FONT_PACKAGE_HDR *SimplifiedFont;
UINT32 PackageLength;
UINT8 *Package;
UINT8 *Location;
EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
//
// Locate HII Database Protocol
//
Status = gBS->LocateProtocol (
&gEfiHiiDatabaseProtocolGuid,
NULL,
(VOID **) &HiiDatabase
);
ASSERT_EFI_ERROR (Status);
//
// Add 4 bytes to the header for entire length for HiiAddPackages use only.
//
// +--------------------------------+ <-- Package
// | |
// | PackageLength(4 bytes) |
// | |
// |--------------------------------| <-- SimplifiedFont
// | |
// |EFI_HII_SIMPLE_FONT_PACKAGE_HDR |
// | |
// |--------------------------------| <-- Location
// | |
// | gUsStdNarrowGlyphData |
// | |
// +--------------------------------+
PackageLength = sizeof (EFI_HII_SIMPLE_FONT_PACKAGE_HDR) + mNarrowFontSize + 4;
Package = AllocateZeroPool (PackageLength);
ASSERT (Package != NULL);
WriteUnaligned32((UINT32 *) Package,PackageLength);
SimplifiedFont = (EFI_HII_SIMPLE_FONT_PACKAGE_HDR *) (Package + 4);
SimplifiedFont->Header.Length = (UINT32) (PackageLength - 4);
SimplifiedFont->Header.Type = EFI_HII_PACKAGE_SIMPLE_FONTS;
SimplifiedFont->NumberOfNarrowGlyphs = (UINT16) (mNarrowFontSize / sizeof (EFI_NARROW_GLYPH));
Location = (UINT8 *) (&SimplifiedFont->NumberOfWideGlyphs + 1);
CopyMem (Location, gUsStdNarrowGlyphData, mNarrowFontSize);
//
// Add this simplified font package to a package list then install it.
//
mHiiHandle = HiiAddPackages (
&mFontPackageListGuid,
NULL,
Package,
NULL
);
ASSERT (mHiiHandle != NULL);
FreePool (Package);
}
/**
The user Entry Point for module GraphicsConsole. The user code starts with this function.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@return other Some error occurs when executing this entry point.
**/
EFI_STATUS
EFIAPI
InitializeGraphicsConsole (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
//
// Register notify function on HII Database Protocol to add font package.
//
EfiCreateProtocolNotifyEvent (
&gEfiHiiDatabaseProtocolGuid,
TPL_CALLBACK,
RegisterFontPackage,
NULL,
&mHiiRegistration
);
//
// Install driver model protocol(s).
//
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gGraphicsConsoleDriverBinding,
ImageHandle,
&gGraphicsConsoleComponentName,
&gGraphicsConsoleComponentName2
);
ASSERT_EFI_ERROR (Status);
return Status;
}
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