-/*++\r
-\r
-Copyright (c) 2006, Intel Corporation\r
-All rights reserved. This program and the accompanying materials\r
-are licensed and made available under the terms and conditions of the BSD License\r
-which accompanies this distribution. The full text of the license may be found at\r
-http://opensource.org/licenses/bsd-license.php\r
-\r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-\r
-Module Name:\r
-\r
- UnixUgaScreen.c\r
-\r
-Abstract:\r
-\r
- This file produces the graphics abstration of UGA. It is called by\r
- UnixUgaDriver.c file which deals with the EFI 1.1 driver model.\r
- This file just does graphics.\r
-\r
---*/\r
-\r
-#include "UnixUga.h"\r
-\r
-EFI_UNIX_THUNK_PROTOCOL *mUnix;\r
-static EFI_EVENT mUgaScreenExitBootServicesEvent;\r
-\r
-STATIC
-EFI_STATUS\r
-UnixUgaStartWindow (\r
- IN UGA_PRIVATE_DATA *Private,\r
- IN UINT32 HorizontalResolution,\r
- IN UINT32 VerticalResolution,\r
- IN UINT32 ColorDepth,\r
- IN UINT32 RefreshRate\r
- );\r
-\r
-STATIC\r
-VOID\r
-EFIAPI\r
-KillNtUgaThread (\r
- IN EFI_EVENT Event,\r
- IN VOID *Context\r
- );\r
-\r
-//\r
-// UGA Protocol Member Functions\r
-//\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-UnixUgaGetMode (\r
- EFI_UGA_DRAW_PROTOCOL *This,\r
- UINT32 *HorizontalResolution,\r
- UINT32 *VerticalResolution,\r
- UINT32 *ColorDepth,\r
- UINT32 *RefreshRate\r
- )\r
-/*++\r
-\r
- Routine Description:\r
- Return the current video mode information.\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
- HorizontalResolution - Current video horizontal resolution in pixels\r
- VerticalResolution - Current video Vertical resolution in pixels\r
- ColorDepth - Current video color depth in bits per pixel\r
- RefreshRate - Current video refresh rate in Hz.\r
-\r
- Returns:\r
- EFI_SUCCESS - Mode information returned.\r
- EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()\r
- EFI_INVALID_PARAMETER - One of the input args was NULL.\r
-\r
---*/\r
-// TODO: ADD IN/OUT description here\r
-{\r
- UGA_PRIVATE_DATA *Private;\r
-\r
- Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This);\r
-\r
- if (Private->HardwareNeedsStarting) {\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- if ((HorizontalResolution == NULL) ||\r
- (VerticalResolution == NULL) ||\r
- (ColorDepth == NULL) ||\r
- (RefreshRate == NULL)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- *HorizontalResolution = Private->HorizontalResolution;\r
- *VerticalResolution = Private->VerticalResolution;\r
- *ColorDepth = Private->ColorDepth;\r
- *RefreshRate = Private->RefreshRate;\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-UnixUgaSetMode (\r
- EFI_UGA_DRAW_PROTOCOL *This,\r
- UINT32 HorizontalResolution,\r
- UINT32 VerticalResolution,\r
- UINT32 ColorDepth,\r
- UINT32 RefreshRate\r
- )\r
-/*++\r
-\r
- Routine Description:\r
- Return the current video mode information.\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
- HorizontalResolution - Current video horizontal resolution in pixels\r
- VerticalResolution - Current video Vertical resolution in pixels\r
- ColorDepth - Current video color depth in bits per pixel\r
- RefreshRate - Current video refresh rate in Hz.\r
-\r
- Returns:\r
- EFI_SUCCESS - Mode information returned.\r
- EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()\r
- EFI_INVALID_PARAMETER - One of the input args was NULL.\r
-\r
---*/\r
-// TODO: EFI_DEVICE_ERROR - add return value to function comment\r
-// TODO: EFI_DEVICE_ERROR - add return value to function comment\r
-// TODO: ADD IN/OUT description here\r
-{\r
- EFI_STATUS Status;\r
- UGA_PRIVATE_DATA *Private;\r
- EFI_UGA_PIXEL Fill;\r
-\r
- Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This);\r
-\r
- if (Private->HardwareNeedsStarting) {\r
- Status = UnixUgaStartWindow (\r
- Private,\r
- HorizontalResolution,\r
- VerticalResolution,\r
- ColorDepth,\r
- RefreshRate\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- Private->HardwareNeedsStarting = FALSE;\r
- }
- Status = Private->UgaIo->UgaSize(Private->UgaIo,
- HorizontalResolution,
- VerticalResolution);
-\r
- Private->HorizontalResolution = HorizontalResolution;\r
- Private->VerticalResolution = VerticalResolution;\r
- Private->ColorDepth = ColorDepth;\r
- Private->RefreshRate = RefreshRate;\r
-\r
- Fill.Red = 0x00;\r
- Fill.Green = 0x00;\r
- Fill.Blue = 0x00;\r
- This->Blt (\r
- This,\r
- &Fill,\r
- EfiUgaVideoFill,\r
- 0,\r
- 0,\r
- 0,\r
- 0,\r
- HorizontalResolution,\r
- VerticalResolution,\r
- HorizontalResolution * sizeof (EFI_UGA_PIXEL)\r
- );\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-UnixUgaBlt (\r
- IN EFI_UGA_DRAW_PROTOCOL *This,\r
- IN EFI_UGA_PIXEL *BltBuffer, OPTIONAL\r
- IN EFI_UGA_BLT_OPERATION BltOperation,\r
- IN UINTN SourceX,\r
- IN UINTN SourceY,\r
- IN UINTN DestinationX,\r
- IN UINTN DestinationY,\r
- IN UINTN Width,\r
- IN UINTN Height,\r
- IN UINTN Delta OPTIONAL\r
- )\r
-/*++\r
-\r
- Routine Description:\r
- Blt pixels from the rectangle (Width X Height) formed by the BltBuffer\r
- onto the graphics screen starting a location (X, Y). (0, 0) is defined as\r
- the upper left hand side of the screen. (X, Y) can be outside of the\r
- current screen geometry and the BltBuffer will be cliped when it is\r
- displayed. X and Y can be negative or positive. If Width or Height is\r
- bigger than the current video screen the image will be clipped.\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
- X - X location on graphics screen.\r
- Y - Y location on the graphics screen.\r
- Width - Width of BltBuffer.\r
- Height - Hight of BltBuffer\r
- BltOperation - Operation to perform on BltBuffer and video memory\r
- BltBuffer - Buffer containing data to blt into video buffer. This\r
- buffer has a size of Width*Height*sizeof(EFI_UGA_PIXEL)\r
- SourceX - If the BltOperation is a EfiCopyBlt this is the source\r
- of the copy. For other BLT operations this argument is not\r
- used.\r
- SourceX - If the BltOperation is a EfiCopyBlt this is the source\r
- of the copy. For other BLT operations this argument is not\r
- used.\r
-\r
- Returns:\r
- EFI_SUCCESS - The palette is updated with PaletteArray.\r
- EFI_INVALID_PARAMETER - BltOperation is not valid.\r
- EFI_DEVICE_ERROR - A hardware error occured writting to the video\r
- buffer.\r
-\r
---*/\r
-// TODO: SourceY - add argument and description to function comment\r
-// TODO: DestinationX - add argument and description to function comment\r
-// TODO: DestinationY - add argument and description to function comment\r
-// TODO: Delta - add argument and description to function comment\r
-{\r
- UGA_PRIVATE_DATA *Private;\r
- EFI_TPL OriginalTPL;\r
- EFI_STATUS Status;\r
-\r
- Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This);\r
-\r
- if ((BltOperation < 0) || (BltOperation >= EfiUgaBltMax)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Width == 0 || Height == 0) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- //\r
- // If Delta is zero, then the entire BltBuffer is being used, so Delta\r
- // is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size,\r
- // the number of bytes in each row can be computed.\r
- //\r
- if (Delta == 0) {\r
- Delta = Width * sizeof (EFI_UGA_PIXEL);\r
- }\r
-\r
- //\r
- // We have to raise to TPL Notify, so we make an atomic write the frame buffer.\r
- // We would not want a timer based event (Cursor, ...) to come in while we are\r
- // doing this operation.\r
- //\r
- OriginalTPL = gBS->RaiseTPL (TPL_NOTIFY);\r
-\r
- Status = Private->UgaIo->UgaBlt (Private->UgaIo,
- BltBuffer,
- BltOperation,
- SourceX, SourceY,
- DestinationX, DestinationY,
- Width, Height,
- Delta);
-\r
- gBS->RestoreTPL (OriginalTPL);\r
-\r
- return Status;
-}\r
-\r
-\r
-//\r
-// Construction and Destruction functions\r
-//\r
-\r
-EFI_STATUS\r
-UnixUgaSupported (\r
- IN EFI_UNIX_IO_PROTOCOL *UnixIo\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: UnixIo - add argument and description to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
- //\r
- // Check to see if the IO abstraction represents a device type we support.\r
- //\r
- // This would be replaced a check of PCI subsystem ID, etc.\r
- //\r
- if (!CompareGuid (UnixIo->TypeGuid, &gEfiUnixUgaGuid)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-STATIC
-EFI_STATUS\r
-UnixUgaStartWindow (\r
- IN UGA_PRIVATE_DATA *Private,\r
- IN UINT32 HorizontalResolution,\r
- IN UINT32 VerticalResolution,\r
- IN UINT32 ColorDepth,\r
- IN UINT32 RefreshRate\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- TODO: Add function description\r
-\r
-Arguments:\r
-\r
- Private - TODO: add argument description\r
- HorizontalResolution - TODO: add argument description\r
- VerticalResolution - TODO: add argument description\r
- ColorDepth - TODO: add argument description\r
- RefreshRate - TODO: add argument description\r
-\r
-Returns:\r
-\r
- TODO: add return values\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
-\r
- mUnix = Private->UnixThunk;\r
-\r
- Private->HorizontalResolution = HorizontalResolution;\r
- Private->VerticalResolution = VerticalResolution;\r
-\r
- //\r
- // Register to be notified on exit boot services so we can destroy the window.\r
- //\r
- Status = gBS->CreateEvent (\r
- EVT_SIGNAL_EXIT_BOOT_SERVICES,\r
- TPL_CALLBACK,\r
- KillNtUgaThread,\r
- Private,\r
- &mUgaScreenExitBootServicesEvent\r
- );\r
-\r
- Status = Private->UnixThunk->UgaCreate(&Private->UgaIo, Private->WindowName);
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-UnixUgaConstructor (\r
- UGA_PRIVATE_DATA *Private\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: Private - add argument and description to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
-\r
- Private->UgaDraw.GetMode = UnixUgaGetMode;\r
- Private->UgaDraw.SetMode = UnixUgaSetMode;\r
- Private->UgaDraw.Blt = UnixUgaBlt;\r
-\r
- Private->HardwareNeedsStarting = TRUE;\r
- Private->UgaIo = NULL;
-\r
- UnixUgaInitializeSimpleTextInForWindow (Private);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-UnixUgaDestructor (\r
- UGA_PRIVATE_DATA *Private\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: Private - add argument and description to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
- if (!Private->HardwareNeedsStarting) {\r
- Private->UgaIo->UgaClose(Private->UgaIo);
- Private->UgaIo = NULL;
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-STATIC\r
-VOID\r
-EFIAPI\r
-KillNtUgaThread (\r
- IN EFI_EVENT Event,\r
- IN VOID *Context\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- This is the UGA screen's callback notification function for exit-boot-services.\r
- All we do here is call UnixUgaDestructor().\r
-\r
-Arguments:\r
-\r
- Event - not used\r
- Context - pointer to the Private structure.\r
-\r
-Returns:\r
-\r
- None.\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- Status = UnixUgaDestructor (Context);\r
-}\r
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