+++ /dev/null
-/*++
-
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
-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:
-
- UnixUgaScreen.c
-
-Abstract:
-
- This file produces the graphics abstration of UGA. It is called by
- UnixUgaDriver.c file which deals with the EFI 1.1 driver model.
- This file just does graphics.
-
---*/
-
-#include "UnixUga.h"
-
-EFI_UNIX_THUNK_PROTOCOL *mUnix;
-EFI_EVENT mUgaScreenExitBootServicesEvent;
-
-EFI_STATUS
-UnixUgaStartWindow (
- IN UGA_PRIVATE_DATA *Private,
- IN UINT32 HorizontalResolution,
- IN UINT32 VerticalResolution,
- IN UINT32 ColorDepth,
- IN UINT32 RefreshRate
- );
-
-VOID
-EFIAPI
-KillNtUgaThread (
- IN EFI_EVENT Event,
- IN VOID *Context
- );
-
-//
-// UGA Protocol Member Functions
-//
-
-EFI_STATUS
-EFIAPI
-UnixUgaGetMode (
- 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
-UnixUgaSetMode (
- 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;
-
- Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This);
-
- if (Private->HardwareNeedsStarting) {
- Status = UnixUgaStartWindow (
- Private,
- HorizontalResolution,
- VerticalResolution,
- ColorDepth,
- RefreshRate
- );
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- Private->HardwareNeedsStarting = FALSE;
- }
- Status = Private->UgaIo->UgaSize(Private->UgaIo,
- HorizontalResolution,
- VerticalResolution);
-
- Private->HorizontalResolution = HorizontalResolution;
- Private->VerticalResolution = VerticalResolution;
- Private->ColorDepth = ColorDepth;
- Private->RefreshRate = RefreshRate;
-
- Fill.Red = 0x7f;
- Fill.Green = 0x7F;
- Fill.Blue = 0x7f;
- This->Blt (
- This,
- &Fill,
- EfiUgaVideoFill,
- 0,
- 0,
- 0,
- 0,
- HorizontalResolution,
- VerticalResolution,
- HorizontalResolution * sizeof (EFI_UGA_PIXEL)
- );
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-UnixUgaBlt (
- 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;
- EFI_STATUS Status;
- UGA_BLT_ARGS UgaBltArgs;
-
- 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 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);
-
- //
- // Pack UGA Draw protocol parameters to UGA_BLT_ARGS structure to adapt to
- // UgaBlt() API of Unix UGA IO protocol.
- //
- UgaBltArgs.DestinationX = DestinationX;
- UgaBltArgs.DestinationY = DestinationY;
- UgaBltArgs.Height = Height;
- UgaBltArgs.Width = Width;
- UgaBltArgs.SourceX = SourceX;
- UgaBltArgs.SourceY = SourceY;
- UgaBltArgs.Delta = Delta;
- Status = Private->UgaIo->UgaBlt (Private->UgaIo,
- BltBuffer,
- BltOperation,
- &UgaBltArgs
- );
-
- gBS->RestoreTPL (OriginalTPL);
-
- return Status;
-}
-
-
-//
-// Construction and Destruction functions
-//
-
-EFI_STATUS
-UnixUgaSupported (
- IN EFI_UNIX_IO_PROTOCOL *UnixIo
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: UnixIo - 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 (UnixIo->TypeGuid, &gEfiUnixUgaGuid)) {
- return EFI_UNSUPPORTED;
- }
-
- return EFI_SUCCESS;
-}
-
-
-EFI_STATUS
-UnixUgaStartWindow (
- 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;
-
- mUnix = Private->UnixThunk;
-
- 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
- );
-
- Status = Private->UnixThunk->UgaCreate(&Private->UgaIo, Private->WindowName);
- return Status;
-}
-
-EFI_STATUS
-UnixUgaConstructor (
- 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 = UnixUgaGetMode;
- Private->UgaDraw.SetMode = UnixUgaSetMode;
- Private->UgaDraw.Blt = UnixUgaBlt;
-
- Private->HardwareNeedsStarting = TRUE;
- Private->UgaIo = NULL;
-
- UnixUgaInitializeSimpleTextInForWindow (Private);
-
- UnixUgaInitializeSimplePointerForWindow (Private);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-UnixUgaDestructor (
- 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
-{
- if (!Private->HardwareNeedsStarting) {
- Private->UgaIo->UgaClose(Private->UgaIo);
- Private->UgaIo = NULL;
- }
-
- return EFI_SUCCESS;
-}
-
-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 UnixUgaDestructor().
-
-Arguments:
-
- Event - not used
- Context - pointer to the Private structure.
-
-Returns:
-
- None.
-
---*/
-{
- EFI_STATUS Status;
- Status = UnixUgaDestructor (Context);
-}
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