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- /*++ @file
- Copyright (c) 2020, Rebecca Cran <rebecca@bsdio.com>
- Copyright (c) 2015, Nahanni Systems, Inc.
- Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
- Portions copyright (c) 2010 - 2011, Apple Inc. All rights reserved.
- SPDX-License-Identifier: BSD-2-Clause-Patent
- 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"
- #include <Library/FrameBufferBltLib.h>
- EFI_EVENT mGopScreenExitBootServicesEvent;
- GOP_MODE_DATA mGopModeData[] = {
- { 0, 0, 32, 0 }, // Filled in with user-spec'd resolution
- { 1024, 768, 32, 0 },
- { 800, 600, 32, 0 },
- { 640, 480, 32, 0 }
- };
- STATIC
- VOID
- BhyveGopCompleteModeInfo (
- IN GOP_MODE_DATA *ModeData,
- OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info
- )
- {
- Info->Version = 0;
- if (ModeData->ColorDepth == 8) {
- Info->PixelFormat = PixelBitMask;
- Info->PixelInformation.RedMask = PIXEL_RED_MASK;
- Info->PixelInformation.GreenMask = PIXEL_GREEN_MASK;
- Info->PixelInformation.BlueMask = PIXEL_BLUE_MASK;
- Info->PixelInformation.ReservedMask = 0;
- } else if (ModeData->ColorDepth == 24) {
- Info->PixelFormat = PixelBitMask;
- Info->PixelInformation.RedMask = PIXEL24_RED_MASK;
- Info->PixelInformation.GreenMask = PIXEL24_GREEN_MASK;
- Info->PixelInformation.BlueMask = PIXEL24_BLUE_MASK;
- Info->PixelInformation.ReservedMask = 0;
- } else if (ModeData->ColorDepth == 32) {
- DEBUG ((
- DEBUG_INFO,
- "%dx%d PixelBlueGreenRedReserved8BitPerColor\n",
- ModeData->HorizontalResolution,
- ModeData->VerticalResolution
- ));
- Info->PixelFormat = PixelBlueGreenRedReserved8BitPerColor;
- }
- Info->PixelsPerScanLine = Info->HorizontalResolution;
- }
- /**
- 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;
- GOP_MODE_DATA *ModeData;
- 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);
- ModeData = &Private->ModeData[ModeNumber];
- (*Info)->Version = 0;
- (*Info)->HorizontalResolution = ModeData->HorizontalResolution;
- (*Info)->VerticalResolution = ModeData->VerticalResolution;
- (*Info)->PixelFormat = PixelBitMask;
- (*Info)->PixelsPerScanLine = (*Info)->HorizontalResolution;
- BhyveGopCompleteModeInfo (ModeData, *Info);
- 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.
- **/
- FRAME_BUFFER_CONFIGURE *fbconf;
- EFI_STATUS
- EFIAPI
- EmuGopSetMode (
- IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
- IN UINT32 ModeNumber
- )
- {
- GOP_PRIVATE_DATA *Private;
- GOP_MODE_DATA *ModeData;
- EFI_GRAPHICS_OUTPUT_BLT_PIXEL Fill;
- EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
- UINTN confsize = 0;
- fbconf = NULL;
- Private = GOP_PRIVATE_DATA_FROM_THIS (This);
- if (ModeNumber >= This->Mode->MaxMode) {
- // Tell bhyve that we are switching out of vesa
- BhyveSetGraphicsMode (Private, 0, 0, 0);
- return EFI_UNSUPPORTED;
- }
- DEBUG ((DEBUG_INFO, "BHYVE GopSetMode %d\n", ModeNumber));
- 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;
- Info = This->Mode->Info;
- BhyveGopCompleteModeInfo (ModeData, Info);
- This->Mode->Info->HorizontalResolution = ModeData->HorizontalResolution;
- This->Mode->Info->VerticalResolution = ModeData->VerticalResolution;
- This->Mode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
- This->Mode->FrameBufferBase = Private->GraphicsOutput.Mode->FrameBufferBase;
- /*
- This->Mode->FrameBufferSize = Info->HorizontalResolution * Info->VerticalResolution
- * ((ModeData->ColorDepth + 7) / 8);
- */
- This->Mode->FrameBufferSize = Private->FbSize;
- DEBUG ((DEBUG_INFO, "BHYVE GOP FrameBufferBase: 0x%x, FrameBufferSize: 0x%x\n", This->Mode->FrameBufferBase, This->Mode->FrameBufferSize));
- BhyveSetGraphicsMode (Private, (UINT16)ModeData->HorizontalResolution, (UINT16)ModeData->VerticalResolution, (UINT16)ModeData->ColorDepth);
- RETURN_STATUS ret = FrameBufferBltConfigure (
- (VOID *)(UINTN)This->Mode->FrameBufferBase,
- This->Mode->Info,
- fbconf,
- &confsize
- );
- if ((ret == EFI_BUFFER_TOO_SMALL) || (ret == EFI_INVALID_PARAMETER)) {
- fbconf = AllocatePool (confsize);
- ret = FrameBufferBltConfigure (
- (VOID *)(UINTN)This->Mode->FrameBufferBase,
- This->Mode->Info,
- fbconf,
- &confsize
- );
- ASSERT (ret == EFI_SUCCESS);
- }
- Fill.Red = 0;
- Fill.Green = 0;
- Fill.Blue = 0;
- 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 occurred 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
- )
- {
- EFI_TPL OriginalTPL;
- EFI_STATUS Status;
- if ((UINT32)BltOperation >= EfiGraphicsOutputBltOperationMax) {
- return EFI_INVALID_PARAMETER;
- }
- if ((Width == 0) || (Height == 0)) {
- 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);
- switch (BltOperation) {
- case EfiBltVideoToBltBuffer:
- case EfiBltBufferToVideo:
- case EfiBltVideoFill:
- case EfiBltVideoToVideo:
- Status = FrameBufferBlt (
- fbconf,
- BltBuffer,
- BltOperation,
- SourceX,
- SourceY,
- DestinationX,
- DestinationY,
- Width,
- Height,
- Delta
- );
- break;
- default:
- Status = EFI_INVALID_PARAMETER;
- ASSERT (FALSE);
- }
- gBS->RestoreTPL (OriginalTPL);
- return Status;
- }
- //
- // Construction and Destruction functions
- //
- EFI_STATUS
- EmuGopConstructor (
- GOP_PRIVATE_DATA *Private
- )
- {
- // Set mode 0 to be the requested resolution
- mGopModeData[0].HorizontalResolution = PcdGet32 (PcdVideoHorizontalResolution);
- mGopModeData[0].VerticalResolution = PcdGet32 (PcdVideoVerticalResolution);
- 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;
- }
- DEBUG ((DEBUG_INFO, "BHYVE Gop Constructor\n"));
- 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_INVALID_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 = PixelBitMask;
- Private->GraphicsOutput.Mode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
- Private->GraphicsOutput.Mode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS)Private->FbAddr;
- Private->GraphicsOutput.Mode->FrameBufferSize = Private->FbSize;
- return EFI_SUCCESS;
- }
- EFI_STATUS
- EmuGopDestructor (
- GOP_PRIVATE_DATA *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);
- Private->GraphicsOutput.Mode = NULL;
- }
- 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.
- **/
- {
- EmuGopDestructor (Context);
- }
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