diff options
Diffstat (limited to 'InOsEmuPkg/EmuGopDxe/GopScreen.c')
-rw-r--r-- | InOsEmuPkg/EmuGopDxe/GopScreen.c | 420 |
1 files changed, 420 insertions, 0 deletions
diff --git a/InOsEmuPkg/EmuGopDxe/GopScreen.c b/InOsEmuPkg/EmuGopDxe/GopScreen.c new file mode 100644 index 0000000000..e7e58adf80 --- /dev/null +++ b/InOsEmuPkg/EmuGopDxe/GopScreen.c @@ -0,0 +1,420 @@ +/*++ @file + +Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR> +Portions copyright (c) 2010 - 2011, Apple Inc. 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: + + EmuGopScreen.c + +Abstract: + + This file produces the graphics abstration of UGA. It is called by + EmuGopDriver.c file which deals with the EFI 1.1 driver model. + This file just does graphics. + +**/ + +#include "Gop.h" + + +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 } + }; + + +/** + Returns information for an available graphics mode that the graphics device + and the set of active video output devices supports. + + @param This The EFI_GRAPHICS_OUTPUT_PROTOCOL instance. + @param ModeNumber The mode number to return information on. + @param SizeOfInfo A pointer to the size, in bytes, of the Info buffer. + @param Info A pointer to callee allocated buffer that returns information about ModeNumber. + + @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 +EmuGopQuerytMode ( + 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 = PixelBltOnly; + (*Info)->PixelsPerScanLine = (*Info)->HorizontalResolution; + + return EFI_SUCCESS; +} + + + +/** + Set the video device into the specified mode and clears the visible portions of + the output display to black. + + @param This The EFI_GRAPHICS_OUTPUT_PROTOCOL instance. + @param ModeNumber Abstraction that defines the current video mode. + + @retval EFI_SUCCESS The graphics mode specified by ModeNumber was selected. + @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 +EmuGopSetMode ( + 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; + + Private = GOP_PRIVATE_DATA_FROM_THIS (This); + + if (ModeNumber >= This->Mode->MaxMode) { + return EFI_UNSUPPORTED; + } + + 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 = EmuGopStartWindow ( + Private, + ModeData->HorizontalResolution, + ModeData->VerticalResolution, + ModeData->ColorDepth, + ModeData->RefreshRate + ); + if (EFI_ERROR (Status)) { + return EFI_DEVICE_ERROR; + } + + Private->HardwareNeedsStarting = FALSE; + } + + + Status = Private->EmuGraphicsWindow->Size( + Private->EmuGraphicsWindow, + ModeData->HorizontalResolution, + ModeData->VerticalResolution + ); + + + Fill.Red = 0x7f; + Fill.Green = 0x7F; + Fill.Blue = 0x7f; + 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 a rectangle of pixels on the graphics screen. Blt stands for BLock Transfer. + + @param This Protocol instance pointer. + @param BltBuffer Buffer containing data to blit into video buffer. This + buffer has a size of Width*Height*sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL) + @param BltOperation Operation to perform on BlitBuffer and video memory + @param SourceX X coordinate of source for the BltBuffer. + @param SourceY Y coordinate of source for the BltBuffer. + @param DestinationX X coordinate of destination for the BltBuffer. + @param DestinationY Y coordinate of destination for the BltBuffer. + @param Width Width of rectangle in BltBuffer in pixels. + @param Height Hight of rectangle in BltBuffer in pixels. + @param Delta OPTIONAL + + @retval EFI_SUCCESS The Blt operation completed. + @retval EFI_INVALID_PARAMETER BltOperation is not valid. + @retval EFI_DEVICE_ERROR A hardware error occured writting to the video buffer. + +**/ +EFI_STATUS +EFIAPI +EmuGopBlt ( + 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; + EFI_STATUS Status; + EMU_GRAPHICS_WINDOWS__BLT_ARGS GopBltArgs; + + 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_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 EMU_GRAPHICS_WINDOWS__BLT_ARGS structure to adapt to + // GopBlt() API of Unix UGA IO protocol. + // + GopBltArgs.DestinationX = DestinationX; + GopBltArgs.DestinationY = DestinationY; + GopBltArgs.Height = Height; + GopBltArgs.Width = Width; + GopBltArgs.SourceX = SourceX; + GopBltArgs.SourceY = SourceY; + GopBltArgs.Delta = Delta; + Status = Private->EmuGraphicsWindow->Blt ( + Private->EmuGraphicsWindow, + (EFI_UGA_PIXEL *)BltBuffer, + (EFI_UGA_BLT_OPERATION)BltOperation, + &GopBltArgs + ); + + gBS->RestoreTPL (OriginalTPL); + + return Status; +} + + +// +// Construction and Destruction functions +// + +EFI_STATUS +EmuGopSupported ( + IN EMU_IO_THUNK_PROTOCOL *EmuIoThunk + ) +{ + // + // 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 (EmuIoThunk->Protocol, &gEmuGraphicsWindowProtocolGuid)) { + return EFI_UNSUPPORTED; + } + + return EFI_SUCCESS; +} + + +EFI_STATUS +EmuGopStartWindow ( + IN GOP_PRIVATE_DATA *Private, + IN UINT32 HorizontalResolution, + IN UINT32 VerticalResolution, + IN UINT32 ColorDepth, + IN UINT32 RefreshRate + ) +{ + EFI_STATUS Status; + + // + // Register to be notified on exit boot services so we can destroy the window. + // + Status = gBS->CreateEvent ( + EVT_SIGNAL_EXIT_BOOT_SERVICES, + TPL_CALLBACK, + ShutdownGopEvent, + Private, + &mGopScreenExitBootServicesEvent + ); + + Status = Private->EmuIoThunk->Open (Private->EmuIoThunk); + if (!EFI_ERROR (Status)) { + Private->EmuGraphicsWindow = Private->EmuIoThunk->Interface; + + // Register callback to support RegisterKeyNotify() + Status = Private->EmuGraphicsWindow->RegisterKeyNotify ( + Private->EmuGraphicsWindow, + GopPrivateMakeCallbackFunction, + GopPrivateBreakCallbackFunction, + Private + ); + ASSERT_EFI_ERROR (Status); + } + return Status; +} + +EFI_STATUS +EmuGopConstructor ( + GOP_PRIVATE_DATA *Private + ) +{ + Private->ModeData = mGopModeData; + + Private->GraphicsOutput.QueryMode = EmuGopQuerytMode; + Private->GraphicsOutput.SetMode = EmuGopSetMode; + Private->GraphicsOutput.Blt = EmuGopBlt; + + // + // 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) (UINTN) NULL; + Private->GraphicsOutput.Mode->FrameBufferSize = 0; + + Private->HardwareNeedsStarting = TRUE; + Private->EmuGraphicsWindow = NULL; + + EmuGopInitializeSimpleTextInForWindow (Private); + + EmuGopInitializeSimplePointerForWindow (Private); + + return EFI_SUCCESS; +} + + + +EFI_STATUS +EmuGopDestructor ( + GOP_PRIVATE_DATA *Private + ) +{ + EFI_STATUS Status; + + Status = EFI_SUCCESS; + if (!Private->HardwareNeedsStarting) { + Status = Private->EmuIoThunk->Open (Private->EmuIoThunk); + Private->EmuGraphicsWindow = NULL; + } + + // + // 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; +} + + +VOID +EFIAPI +ShutdownGopEvent ( + 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 EmuGopDestructor(). + +Arguments: + + Event - not used + Context - pointer to the Private structure. + +Returns: + + None. + +**/ +{ + EFI_STATUS Status; + Status = EmuGopDestructor (Context); +} + |