From 1e57a46299244793beb27e74be171d1540606999 Mon Sep 17 00:00:00 2001 From: oliviermartin Date: Fri, 25 Jan 2013 11:28:06 +0000 Subject: ARM Packages: Fixed line endings This large code change only modifies the line endings to be CRLF to be compliant with the EDK2 coding convention document. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14088 6f19259b-4bc3-4df7-8a09-765794883524 --- .../LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c | 890 ++++++++++----------- 1 file changed, 445 insertions(+), 445 deletions(-) (limited to 'Omap35xxPkg/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c') diff --git a/Omap35xxPkg/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c b/Omap35xxPkg/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c index 38c84dd88c..9541e7e902 100644 --- a/Omap35xxPkg/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c +++ b/Omap35xxPkg/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c @@ -1,445 +1,445 @@ -/** @file - - Copyright (c) 2011, ARM Ltd. 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 -#include -#include -#include -#include -#include - -#include - -#include "LcdGraphicsOutputDxe.h" - -extern BOOLEAN mDisplayInitialized; - -// -// Function Definitions -// - -STATIC -EFI_STATUS -VideoCopyNoHorizontalOverlap ( - IN UINTN BitsPerPixel, - IN volatile VOID *FrameBufferBase, - IN UINT32 HorizontalResolution, - IN UINTN SourceX, - IN UINTN SourceY, - IN UINTN DestinationX, - IN UINTN DestinationY, - IN UINTN Width, - IN UINTN Height - ) -{ - EFI_STATUS Status = EFI_SUCCESS; - UINTN SourceLine; - UINTN DestinationLine; - UINTN WidthInBytes; - UINTN LineCount; - INTN Step; - VOID *SourceAddr; - VOID *DestinationAddr; - - if( DestinationY <= SourceY ) { - // scrolling up (or horizontally but without overlap) - SourceLine = SourceY; - DestinationLine = DestinationY; - Step = 1; - } else { - // scrolling down - SourceLine = SourceY + Height; - DestinationLine = DestinationY + Height; - Step = -1; - } - - WidthInBytes = Width * 2; - - for( LineCount = 0; LineCount < Height; LineCount++ ) { - // Update the start addresses of source & destination using 16bit pointer arithmetic - SourceAddr = (VOID *)((UINT16 *)FrameBufferBase + SourceLine * HorizontalResolution + SourceX ); - DestinationAddr = (VOID *)((UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationX); - - // Copy the entire line Y from video ram to the temp buffer - CopyMem( DestinationAddr, SourceAddr, WidthInBytes); - - // Update the line numbers - SourceLine += Step; - DestinationLine += Step; - } - - return Status; -} - -STATIC -EFI_STATUS -VideoCopyHorizontalOverlap ( - IN UINTN BitsPerPixel, - IN volatile VOID *FrameBufferBase, - UINT32 HorizontalResolution, - IN UINTN SourceX, - IN UINTN SourceY, - IN UINTN DestinationX, - IN UINTN DestinationY, - IN UINTN Width, - IN UINTN Height - ) -{ - EFI_STATUS Status = EFI_SUCCESS; - - UINT16 *PixelBuffer16bit; - UINT16 *SourcePixel16bit; - UINT16 *DestinationPixel16bit; - - UINT32 SourcePixelY; - UINT32 DestinationPixelY; - UINTN SizeIn16Bits; - - // Allocate a temporary buffer - PixelBuffer16bit = (UINT16 *) AllocatePool((Height * Width) * sizeof(UINT16)); - - if (PixelBuffer16bit == NULL) { - Status = EFI_OUT_OF_RESOURCES; - goto EXIT; - } - - // Access each pixel inside the source area of the Video Memory and copy it to the temp buffer - - SizeIn16Bits = Width * 2; - - for (SourcePixelY = SourceY, DestinationPixel16bit = PixelBuffer16bit; - SourcePixelY < SourceY + Height; - SourcePixelY++, DestinationPixel16bit += Width) - { - // Calculate the source address: - SourcePixel16bit = (UINT16 *)FrameBufferBase + SourcePixelY * HorizontalResolution + SourceX; - - // Copy the entire line Y from Video to the temp buffer - CopyMem( (VOID *)DestinationPixel16bit, (CONST VOID *)SourcePixel16bit, SizeIn16Bits); - } - - // Copy from the temp buffer into the destination area of the Video Memory - - for (DestinationPixelY = DestinationY, SourcePixel16bit = PixelBuffer16bit; - DestinationPixelY < DestinationY + Height; - DestinationPixelY++, SourcePixel16bit += Width) - { - // Calculate the target address: - DestinationPixel16bit = (UINT16 *)FrameBufferBase + (DestinationPixelY * HorizontalResolution + DestinationX); - - // Copy the entire line Y from the temp buffer to Video - CopyMem( (VOID *)DestinationPixel16bit, (CONST VOID *)SourcePixel16bit, SizeIn16Bits); - } - - // Free the allocated memory - FreePool((VOID *) PixelBuffer16bit); - - -EXIT: - return Status; -} - -STATIC -EFI_STATUS -BltVideoFill ( - IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, - IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiSourcePixel, OPTIONAL - IN UINTN SourceX, - IN UINTN SourceY, - IN UINTN DestinationX, - IN UINTN DestinationY, - IN UINTN Width, - IN UINTN Height, - IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer - ) -{ - EFI_PIXEL_BITMASK* PixelInformation; - EFI_STATUS Status; - UINT32 HorizontalResolution; - VOID *FrameBufferBase; - UINT16 *DestinationPixel16bit; - UINT16 Pixel16bit; - UINT32 DestinationPixelX; - UINT32 DestinationLine; - - Status = EFI_SUCCESS; - PixelInformation = &This->Mode->Info->PixelInformation; - FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); - HorizontalResolution = This->Mode->Info->HorizontalResolution; - - // Convert the EFI pixel at the start of the BltBuffer(0,0) into a video display pixel - Pixel16bit = (UINT16) ( - ( (EfiSourcePixel->Red << 8) & PixelInformation->RedMask ) - | ( (EfiSourcePixel->Green << 3) & PixelInformation->GreenMask ) - | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask ) - ); - - // Copy the SourcePixel into every pixel inside the target rectangle - for (DestinationLine = DestinationY; - DestinationLine < DestinationY + Height; - DestinationLine++) - { - for (DestinationPixelX = DestinationX; - DestinationPixelX < DestinationX + Width; - DestinationPixelX++) - { - // Calculate the target address: - DestinationPixel16bit = (UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationPixelX; - - // Copy the pixel into the new target - *DestinationPixel16bit = Pixel16bit; - } - } - - - return Status; -} - -STATIC -EFI_STATUS -BltVideoToBltBuffer ( - IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, - IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL - IN UINTN SourceX, - IN UINTN SourceY, - IN UINTN DestinationX, - IN UINTN DestinationY, - IN UINTN Width, - IN UINTN Height, - IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer - ) -{ - EFI_STATUS Status; - UINT32 HorizontalResolution; - EFI_PIXEL_BITMASK *PixelInformation; - EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiDestinationPixel; - VOID *FrameBufferBase; - UINT16 *SourcePixel16bit; - UINT16 Pixel16bit; - UINT32 SourcePixelX; - UINT32 SourceLine; - UINT32 DestinationPixelX; - UINT32 DestinationLine; - UINT32 BltBufferHorizontalResolution; - - Status = EFI_SUCCESS; - PixelInformation = &This->Mode->Info->PixelInformation; - HorizontalResolution = This->Mode->Info->HorizontalResolution; - FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); - - if(( Delta != 0 ) && ( Delta != Width * sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL))) { - // Delta is not zero and it is different from the width. - // Divide it by the size of a pixel to find out the buffer's horizontal resolution. - BltBufferHorizontalResolution = (UINT32) (Delta / sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)); - } else { - BltBufferHorizontalResolution = Width; - } - - // Access each pixel inside the Video Memory - for (SourceLine = SourceY, DestinationLine = DestinationY; - SourceLine < SourceY + Height; - SourceLine++, DestinationLine++) - { - for (SourcePixelX = SourceX, DestinationPixelX = DestinationX; - SourcePixelX < SourceX + Width; - SourcePixelX++, DestinationPixelX++) - { - // Calculate the source and target addresses: - SourcePixel16bit = (UINT16 *)FrameBufferBase + SourceLine * HorizontalResolution + SourcePixelX; - EfiDestinationPixel = BltBuffer + DestinationLine * BltBufferHorizontalResolution + DestinationPixelX; - - // Snapshot the pixel from the video buffer once, to speed up the operation. - // If we were dereferencing the pointer, as it is volatile, we would perform 3 memory read operations. - Pixel16bit = *SourcePixel16bit; - - // Copy the pixel into the new target - EfiDestinationPixel->Red = (UINT8) ( (Pixel16bit & PixelInformation->RedMask ) >> 8 ); - EfiDestinationPixel->Green = (UINT8) ( (Pixel16bit & PixelInformation->GreenMask ) >> 3 ); - EfiDestinationPixel->Blue = (UINT8) ( (Pixel16bit & PixelInformation->BlueMask ) << 3 ); - } - } - - return Status; -} - -STATIC -EFI_STATUS -BltBufferToVideo ( - IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, - IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL - IN UINTN SourceX, - IN UINTN SourceY, - IN UINTN DestinationX, - IN UINTN DestinationY, - IN UINTN Width, - IN UINTN Height, - IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer - ) -{ - EFI_STATUS Status; - UINT32 HorizontalResolution; - EFI_PIXEL_BITMASK *PixelInformation; - EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiSourcePixel; - VOID *FrameBufferBase; - UINT16 *DestinationPixel16bit; - UINT32 SourcePixelX; - UINT32 SourceLine; - UINT32 DestinationPixelX; - UINT32 DestinationLine; - UINT32 BltBufferHorizontalResolution; - - Status = EFI_SUCCESS; - PixelInformation = &This->Mode->Info->PixelInformation; - HorizontalResolution = This->Mode->Info->HorizontalResolution; - FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); - - if(( Delta != 0 ) && ( Delta != Width * sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL))) { - // Delta is not zero and it is different from the width. - // Divide it by the size of a pixel to find out the buffer's horizontal resolution. - BltBufferHorizontalResolution = (UINT32) (Delta / sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)); - } else { - BltBufferHorizontalResolution = Width; - } - - // Access each pixel inside the BltBuffer Memory - for (SourceLine = SourceY, DestinationLine = DestinationY; - SourceLine < SourceY + Height; - SourceLine++, DestinationLine++) { - - for (SourcePixelX = SourceX, DestinationPixelX = DestinationX; - SourcePixelX < SourceX + Width; - SourcePixelX++, DestinationPixelX++) - { - // Calculate the source and target addresses: - EfiSourcePixel = BltBuffer + SourceLine * BltBufferHorizontalResolution + SourcePixelX; - DestinationPixel16bit = (UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationPixelX; - - // Copy the pixel into the new target - // Only the most significant bits will be copied across: - // To convert from 8 bits to 5 bits per pixel we throw away the 3 least significant bits - *DestinationPixel16bit = (UINT16) ( - ( (EfiSourcePixel->Red << 8) & PixelInformation->RedMask ) - | ( (EfiSourcePixel->Green << 3) & PixelInformation->GreenMask ) - | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask ) - ); - } - } - - return Status; -} - -STATIC -EFI_STATUS -BltVideoToVideo ( - IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, - IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL - IN UINTN SourceX, - IN UINTN SourceY, - IN UINTN DestinationX, - IN UINTN DestinationY, - IN UINTN Width, - IN UINTN Height, - IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer - ) -{ - EFI_STATUS Status; - UINT32 HorizontalResolution; - UINTN BitsPerPixel; - VOID *FrameBufferBase; - - BitsPerPixel = 16; - - HorizontalResolution = This->Mode->Info->HorizontalResolution; - FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); - - // - // BltVideo to BltVideo: - // - // Source is the Video Memory, - // Destination is the Video Memory - - FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); - - // The UEFI spec currently states: - // "There is no limitation on the overlapping of the source and destination rectangles" - // Therefore, we must be careful to avoid overwriting the source data - if( SourceY == DestinationY ) { - // Copying within the same height, e.g. horizontal shift - if( SourceX == DestinationX ) { - // Nothing to do - Status = EFI_SUCCESS; - } else if( ((SourceX>DestinationX)?(SourceX - DestinationX):(DestinationX - SourceX)) < Width ) { - // There is overlap - Status = VideoCopyHorizontalOverlap (BitsPerPixel, FrameBufferBase, HorizontalResolution, SourceX, SourceY, DestinationX, DestinationY, Width, Height ); - } else { - // No overlap - Status = VideoCopyNoHorizontalOverlap (BitsPerPixel, FrameBufferBase, HorizontalResolution, SourceX, SourceY, DestinationX, DestinationY, Width, Height ); - } - } else { - // Copying from different heights - Status = VideoCopyNoHorizontalOverlap (BitsPerPixel, FrameBufferBase, HorizontalResolution, SourceX, SourceY, DestinationX, DestinationY, Width, Height ); - } - - return Status; -} - -EFI_STATUS -EFIAPI -LcdGraphicsBlt ( - IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, - IN OUT 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 // Number of BYTES in a row of the BltBuffer - ) -{ - EFI_STATUS Status; - LCD_INSTANCE *Instance; - - Instance = LCD_INSTANCE_FROM_GOP_THIS(This); - - if (!mDisplayInitialized) { - InitializeDisplay (Instance); - } - - switch (BltOperation) { - case EfiBltVideoFill: - Status = BltVideoFill (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); - break; - - case EfiBltVideoToBltBuffer: - Status = BltVideoToBltBuffer (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); - break; - - case EfiBltBufferToVideo: - Status = BltBufferToVideo (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); - break; - - case EfiBltVideoToVideo: - Status = BltVideoToVideo (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); - break; - - case EfiGraphicsOutputBltOperationMax: - default: - DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: Invalid Operation\n")); - Status = EFI_INVALID_PARAMETER; - break; - } - - return Status; -} +/** @file + + Copyright (c) 2011, ARM Ltd. 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 +#include +#include +#include +#include +#include + +#include + +#include "LcdGraphicsOutputDxe.h" + +extern BOOLEAN mDisplayInitialized; + +// +// Function Definitions +// + +STATIC +EFI_STATUS +VideoCopyNoHorizontalOverlap ( + IN UINTN BitsPerPixel, + IN volatile VOID *FrameBufferBase, + IN UINT32 HorizontalResolution, + IN UINTN SourceX, + IN UINTN SourceY, + IN UINTN DestinationX, + IN UINTN DestinationY, + IN UINTN Width, + IN UINTN Height + ) +{ + EFI_STATUS Status = EFI_SUCCESS; + UINTN SourceLine; + UINTN DestinationLine; + UINTN WidthInBytes; + UINTN LineCount; + INTN Step; + VOID *SourceAddr; + VOID *DestinationAddr; + + if( DestinationY <= SourceY ) { + // scrolling up (or horizontally but without overlap) + SourceLine = SourceY; + DestinationLine = DestinationY; + Step = 1; + } else { + // scrolling down + SourceLine = SourceY + Height; + DestinationLine = DestinationY + Height; + Step = -1; + } + + WidthInBytes = Width * 2; + + for( LineCount = 0; LineCount < Height; LineCount++ ) { + // Update the start addresses of source & destination using 16bit pointer arithmetic + SourceAddr = (VOID *)((UINT16 *)FrameBufferBase + SourceLine * HorizontalResolution + SourceX ); + DestinationAddr = (VOID *)((UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationX); + + // Copy the entire line Y from video ram to the temp buffer + CopyMem( DestinationAddr, SourceAddr, WidthInBytes); + + // Update the line numbers + SourceLine += Step; + DestinationLine += Step; + } + + return Status; +} + +STATIC +EFI_STATUS +VideoCopyHorizontalOverlap ( + IN UINTN BitsPerPixel, + IN volatile VOID *FrameBufferBase, + UINT32 HorizontalResolution, + IN UINTN SourceX, + IN UINTN SourceY, + IN UINTN DestinationX, + IN UINTN DestinationY, + IN UINTN Width, + IN UINTN Height + ) +{ + EFI_STATUS Status = EFI_SUCCESS; + + UINT16 *PixelBuffer16bit; + UINT16 *SourcePixel16bit; + UINT16 *DestinationPixel16bit; + + UINT32 SourcePixelY; + UINT32 DestinationPixelY; + UINTN SizeIn16Bits; + + // Allocate a temporary buffer + PixelBuffer16bit = (UINT16 *) AllocatePool((Height * Width) * sizeof(UINT16)); + + if (PixelBuffer16bit == NULL) { + Status = EFI_OUT_OF_RESOURCES; + goto EXIT; + } + + // Access each pixel inside the source area of the Video Memory and copy it to the temp buffer + + SizeIn16Bits = Width * 2; + + for (SourcePixelY = SourceY, DestinationPixel16bit = PixelBuffer16bit; + SourcePixelY < SourceY + Height; + SourcePixelY++, DestinationPixel16bit += Width) + { + // Calculate the source address: + SourcePixel16bit = (UINT16 *)FrameBufferBase + SourcePixelY * HorizontalResolution + SourceX; + + // Copy the entire line Y from Video to the temp buffer + CopyMem( (VOID *)DestinationPixel16bit, (CONST VOID *)SourcePixel16bit, SizeIn16Bits); + } + + // Copy from the temp buffer into the destination area of the Video Memory + + for (DestinationPixelY = DestinationY, SourcePixel16bit = PixelBuffer16bit; + DestinationPixelY < DestinationY + Height; + DestinationPixelY++, SourcePixel16bit += Width) + { + // Calculate the target address: + DestinationPixel16bit = (UINT16 *)FrameBufferBase + (DestinationPixelY * HorizontalResolution + DestinationX); + + // Copy the entire line Y from the temp buffer to Video + CopyMem( (VOID *)DestinationPixel16bit, (CONST VOID *)SourcePixel16bit, SizeIn16Bits); + } + + // Free the allocated memory + FreePool((VOID *) PixelBuffer16bit); + + +EXIT: + return Status; +} + +STATIC +EFI_STATUS +BltVideoFill ( + IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, + IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiSourcePixel, OPTIONAL + IN UINTN SourceX, + IN UINTN SourceY, + IN UINTN DestinationX, + IN UINTN DestinationY, + IN UINTN Width, + IN UINTN Height, + IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer + ) +{ + EFI_PIXEL_BITMASK* PixelInformation; + EFI_STATUS Status; + UINT32 HorizontalResolution; + VOID *FrameBufferBase; + UINT16 *DestinationPixel16bit; + UINT16 Pixel16bit; + UINT32 DestinationPixelX; + UINT32 DestinationLine; + + Status = EFI_SUCCESS; + PixelInformation = &This->Mode->Info->PixelInformation; + FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); + HorizontalResolution = This->Mode->Info->HorizontalResolution; + + // Convert the EFI pixel at the start of the BltBuffer(0,0) into a video display pixel + Pixel16bit = (UINT16) ( + ( (EfiSourcePixel->Red << 8) & PixelInformation->RedMask ) + | ( (EfiSourcePixel->Green << 3) & PixelInformation->GreenMask ) + | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask ) + ); + + // Copy the SourcePixel into every pixel inside the target rectangle + for (DestinationLine = DestinationY; + DestinationLine < DestinationY + Height; + DestinationLine++) + { + for (DestinationPixelX = DestinationX; + DestinationPixelX < DestinationX + Width; + DestinationPixelX++) + { + // Calculate the target address: + DestinationPixel16bit = (UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationPixelX; + + // Copy the pixel into the new target + *DestinationPixel16bit = Pixel16bit; + } + } + + + return Status; +} + +STATIC +EFI_STATUS +BltVideoToBltBuffer ( + IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, + IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL + IN UINTN SourceX, + IN UINTN SourceY, + IN UINTN DestinationX, + IN UINTN DestinationY, + IN UINTN Width, + IN UINTN Height, + IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer + ) +{ + EFI_STATUS Status; + UINT32 HorizontalResolution; + EFI_PIXEL_BITMASK *PixelInformation; + EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiDestinationPixel; + VOID *FrameBufferBase; + UINT16 *SourcePixel16bit; + UINT16 Pixel16bit; + UINT32 SourcePixelX; + UINT32 SourceLine; + UINT32 DestinationPixelX; + UINT32 DestinationLine; + UINT32 BltBufferHorizontalResolution; + + Status = EFI_SUCCESS; + PixelInformation = &This->Mode->Info->PixelInformation; + HorizontalResolution = This->Mode->Info->HorizontalResolution; + FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); + + if(( Delta != 0 ) && ( Delta != Width * sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL))) { + // Delta is not zero and it is different from the width. + // Divide it by the size of a pixel to find out the buffer's horizontal resolution. + BltBufferHorizontalResolution = (UINT32) (Delta / sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)); + } else { + BltBufferHorizontalResolution = Width; + } + + // Access each pixel inside the Video Memory + for (SourceLine = SourceY, DestinationLine = DestinationY; + SourceLine < SourceY + Height; + SourceLine++, DestinationLine++) + { + for (SourcePixelX = SourceX, DestinationPixelX = DestinationX; + SourcePixelX < SourceX + Width; + SourcePixelX++, DestinationPixelX++) + { + // Calculate the source and target addresses: + SourcePixel16bit = (UINT16 *)FrameBufferBase + SourceLine * HorizontalResolution + SourcePixelX; + EfiDestinationPixel = BltBuffer + DestinationLine * BltBufferHorizontalResolution + DestinationPixelX; + + // Snapshot the pixel from the video buffer once, to speed up the operation. + // If we were dereferencing the pointer, as it is volatile, we would perform 3 memory read operations. + Pixel16bit = *SourcePixel16bit; + + // Copy the pixel into the new target + EfiDestinationPixel->Red = (UINT8) ( (Pixel16bit & PixelInformation->RedMask ) >> 8 ); + EfiDestinationPixel->Green = (UINT8) ( (Pixel16bit & PixelInformation->GreenMask ) >> 3 ); + EfiDestinationPixel->Blue = (UINT8) ( (Pixel16bit & PixelInformation->BlueMask ) << 3 ); + } + } + + return Status; +} + +STATIC +EFI_STATUS +BltBufferToVideo ( + IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, + IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL + IN UINTN SourceX, + IN UINTN SourceY, + IN UINTN DestinationX, + IN UINTN DestinationY, + IN UINTN Width, + IN UINTN Height, + IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer + ) +{ + EFI_STATUS Status; + UINT32 HorizontalResolution; + EFI_PIXEL_BITMASK *PixelInformation; + EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiSourcePixel; + VOID *FrameBufferBase; + UINT16 *DestinationPixel16bit; + UINT32 SourcePixelX; + UINT32 SourceLine; + UINT32 DestinationPixelX; + UINT32 DestinationLine; + UINT32 BltBufferHorizontalResolution; + + Status = EFI_SUCCESS; + PixelInformation = &This->Mode->Info->PixelInformation; + HorizontalResolution = This->Mode->Info->HorizontalResolution; + FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); + + if(( Delta != 0 ) && ( Delta != Width * sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL))) { + // Delta is not zero and it is different from the width. + // Divide it by the size of a pixel to find out the buffer's horizontal resolution. + BltBufferHorizontalResolution = (UINT32) (Delta / sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)); + } else { + BltBufferHorizontalResolution = Width; + } + + // Access each pixel inside the BltBuffer Memory + for (SourceLine = SourceY, DestinationLine = DestinationY; + SourceLine < SourceY + Height; + SourceLine++, DestinationLine++) { + + for (SourcePixelX = SourceX, DestinationPixelX = DestinationX; + SourcePixelX < SourceX + Width; + SourcePixelX++, DestinationPixelX++) + { + // Calculate the source and target addresses: + EfiSourcePixel = BltBuffer + SourceLine * BltBufferHorizontalResolution + SourcePixelX; + DestinationPixel16bit = (UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationPixelX; + + // Copy the pixel into the new target + // Only the most significant bits will be copied across: + // To convert from 8 bits to 5 bits per pixel we throw away the 3 least significant bits + *DestinationPixel16bit = (UINT16) ( + ( (EfiSourcePixel->Red << 8) & PixelInformation->RedMask ) + | ( (EfiSourcePixel->Green << 3) & PixelInformation->GreenMask ) + | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask ) + ); + } + } + + return Status; +} + +STATIC +EFI_STATUS +BltVideoToVideo ( + IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, + IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL + IN UINTN SourceX, + IN UINTN SourceY, + IN UINTN DestinationX, + IN UINTN DestinationY, + IN UINTN Width, + IN UINTN Height, + IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer + ) +{ + EFI_STATUS Status; + UINT32 HorizontalResolution; + UINTN BitsPerPixel; + VOID *FrameBufferBase; + + BitsPerPixel = 16; + + HorizontalResolution = This->Mode->Info->HorizontalResolution; + FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); + + // + // BltVideo to BltVideo: + // + // Source is the Video Memory, + // Destination is the Video Memory + + FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); + + // The UEFI spec currently states: + // "There is no limitation on the overlapping of the source and destination rectangles" + // Therefore, we must be careful to avoid overwriting the source data + if( SourceY == DestinationY ) { + // Copying within the same height, e.g. horizontal shift + if( SourceX == DestinationX ) { + // Nothing to do + Status = EFI_SUCCESS; + } else if( ((SourceX>DestinationX)?(SourceX - DestinationX):(DestinationX - SourceX)) < Width ) { + // There is overlap + Status = VideoCopyHorizontalOverlap (BitsPerPixel, FrameBufferBase, HorizontalResolution, SourceX, SourceY, DestinationX, DestinationY, Width, Height ); + } else { + // No overlap + Status = VideoCopyNoHorizontalOverlap (BitsPerPixel, FrameBufferBase, HorizontalResolution, SourceX, SourceY, DestinationX, DestinationY, Width, Height ); + } + } else { + // Copying from different heights + Status = VideoCopyNoHorizontalOverlap (BitsPerPixel, FrameBufferBase, HorizontalResolution, SourceX, SourceY, DestinationX, DestinationY, Width, Height ); + } + + return Status; +} + +EFI_STATUS +EFIAPI +LcdGraphicsBlt ( + IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, + IN OUT 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 // Number of BYTES in a row of the BltBuffer + ) +{ + EFI_STATUS Status; + LCD_INSTANCE *Instance; + + Instance = LCD_INSTANCE_FROM_GOP_THIS(This); + + if (!mDisplayInitialized) { + InitializeDisplay (Instance); + } + + switch (BltOperation) { + case EfiBltVideoFill: + Status = BltVideoFill (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); + break; + + case EfiBltVideoToBltBuffer: + Status = BltVideoToBltBuffer (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); + break; + + case EfiBltBufferToVideo: + Status = BltBufferToVideo (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); + break; + + case EfiBltVideoToVideo: + Status = BltVideoToVideo (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); + break; + + case EfiGraphicsOutputBltOperationMax: + default: + DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: Invalid Operation\n")); + Status = EFI_INVALID_PARAMETER; + break; + } + + return Status; +} -- cgit v1.2.3