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path: root/ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c
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Diffstat (limited to 'ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c')
-rw-r--r--ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c1764
1 files changed, 882 insertions, 882 deletions
diff --git a/ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c b/ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c
index 3c267df4..ef85e712 100644
--- a/ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c
+++ b/ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputBlt.c
@@ -1,882 +1,882 @@
-/** @file
-
- Copyright (c) 2011, ARM Ltd. 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.
-
- **/
-
-#include <PiDxe.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/DevicePathLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiRuntimeServicesTableLib.h>
-#include <Library/MemoryAllocationLib.h>
-
-#include <Guid/GlobalVariable.h>
-
-#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;
- }
-
- switch (BitsPerPixel) {
-
- case LCD_BITS_PER_PIXEL_24:
-
- WidthInBytes = Width * 4;
-
- for( LineCount = 0; LineCount < Height; LineCount++ ) {
- // Update the start addresses of source & destination using 32bit pointer arithmetic
- SourceAddr = (VOID *)((UINT32 *)FrameBufferBase + SourceLine * HorizontalResolution + SourceX );
- DestinationAddr = (VOID *)((UINT32 *)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;
- }
- break;
-
- case LCD_BITS_PER_PIXEL_16_555:
- case LCD_BITS_PER_PIXEL_16_565:
- case LCD_BITS_PER_PIXEL_12_444:
-
- 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;
- }
- break;
-
- case LCD_BITS_PER_PIXEL_8:
- case LCD_BITS_PER_PIXEL_4:
- case LCD_BITS_PER_PIXEL_2:
- case LCD_BITS_PER_PIXEL_1:
- default:
- // Can't handle this case
- DEBUG((DEBUG_ERROR, "ArmVeGraphics_Blt: EfiBltVideoToVideo: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel));
- Status = EFI_INVALID_PARAMETER;
- goto EXIT;
- // break;
-
- }
-
- EXIT:
- 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;
-
- UINT32 *PixelBuffer32bit;
- UINT32 *SourcePixel32bit;
- UINT32 *DestinationPixel32bit;
-
- UINT16 *PixelBuffer16bit;
- UINT16 *SourcePixel16bit;
- UINT16 *DestinationPixel16bit;
-
- UINT32 SourcePixelY;
- UINT32 DestinationPixelY;
- UINTN SizeIn32Bits;
- UINTN SizeIn16Bits;
-
- switch (BitsPerPixel) {
-
- case LCD_BITS_PER_PIXEL_24:
- // Allocate a temporary buffer
-
- PixelBuffer32bit = (UINT32 *) AllocatePool((Height * Width) * sizeof(UINT32));
-
- if (PixelBuffer32bit == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto EXIT;
- }
-
- SizeIn32Bits = Width * 4;
-
- // Copy from the video ram (source region) to a temp buffer
- for (SourcePixelY = SourceY, DestinationPixel32bit = PixelBuffer32bit;
- SourcePixelY < SourceY + Height;
- SourcePixelY++, DestinationPixel32bit += Width)
- {
- // Update the start address of line Y (source)
- SourcePixel32bit = (UINT32 *)FrameBufferBase + SourcePixelY * HorizontalResolution + SourceX;
-
- // Copy the entire line Y from video ram to the temp buffer
- CopyMem( (VOID *)DestinationPixel32bit, (CONST VOID *)SourcePixel32bit, SizeIn32Bits);
- }
-
- // Copy from the temp buffer to the video ram (destination region)
- for (DestinationPixelY = DestinationY, SourcePixel32bit = PixelBuffer32bit;
- DestinationPixelY < DestinationY + Height;
- DestinationPixelY++, SourcePixel32bit += Width)
- {
- // Update the start address of line Y (target)
- DestinationPixel32bit = (UINT32 *)FrameBufferBase + DestinationPixelY * HorizontalResolution + DestinationX;
-
- // Copy the entire line Y from the temp buffer to video ram
- CopyMem( (VOID *)DestinationPixel32bit, (CONST VOID *)SourcePixel32bit, SizeIn32Bits);
- }
-
- // Free up the allocated memory
- FreePool((VOID *) PixelBuffer32bit);
-
- break;
-
-
- case LCD_BITS_PER_PIXEL_16_555:
- case LCD_BITS_PER_PIXEL_16_565:
- case LCD_BITS_PER_PIXEL_12_444:
- // 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);
-
- break;
-
-
- case LCD_BITS_PER_PIXEL_8:
- case LCD_BITS_PER_PIXEL_4:
- case LCD_BITS_PER_PIXEL_2:
- case LCD_BITS_PER_PIXEL_1:
- default:
- // Can't handle this case
- DEBUG((DEBUG_ERROR, "ArmVeGraphics_Blt: EfiBltVideoToVideo: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel));
- Status = EFI_INVALID_PARAMETER;
- goto EXIT;
- // break;
-
- }
-
-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;
- LCD_BPP BitsPerPixel;
- VOID *FrameBufferBase;
- VOID *DestinationAddr;
- UINT16 *DestinationPixel16bit;
- UINT16 Pixel16bit;
- UINT32 DestinationPixelX;
- UINT32 DestinationLine;
- UINTN WidthInBytes;
-
- Status = EFI_SUCCESS;
- PixelInformation = &This->Mode->Info->PixelInformation;
- FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase));
- HorizontalResolution = This->Mode->Info->HorizontalResolution;
-
- LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel);
-
- switch (BitsPerPixel) {
- case LCD_BITS_PER_PIXEL_24:
- WidthInBytes = Width * 4;
-
- // Copy the SourcePixel into every pixel inside the target rectangle
- for (DestinationLine = DestinationY;
- DestinationLine < DestinationY + Height;
- DestinationLine++)
- {
- // Calculate the target address using 32bit pointer arithmetic:
- DestinationAddr = (VOID *)((UINT32 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationX);
-
- // Fill the entire line
- SetMemN( DestinationAddr, WidthInBytes, *((UINTN *)EfiSourcePixel));
- }
- break;
-
- case LCD_BITS_PER_PIXEL_16_555:
- // Convert the EFI pixel at the start of the BltBuffer(0,0) into a video display pixel
- Pixel16bit = (UINT16) (
- ( (EfiSourcePixel->Red << 7) & PixelInformation->RedMask )
- | ( (EfiSourcePixel->Green << 2) & PixelInformation->GreenMask )
- | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask )
-// | ( 0 & PixelInformation->ReservedMask )
- );
-
- // 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;
- }
- }
- break;
-
- case LCD_BITS_PER_PIXEL_16_565:
- // 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;
- }
- }
- break;
-
- case LCD_BITS_PER_PIXEL_12_444:
- // Convert the EFI pixel at the start of the BltBuffer(0,0) into a video display pixel
- Pixel16bit = (UINT16) (
- ( (EfiSourcePixel->Red >> 4) & PixelInformation->RedMask )
- | ( (EfiSourcePixel->Green ) & PixelInformation->GreenMask )
- | ( (EfiSourcePixel->Blue << 4) & 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;
- }
- }
- break;
-
- case LCD_BITS_PER_PIXEL_8:
- case LCD_BITS_PER_PIXEL_4:
- case LCD_BITS_PER_PIXEL_2:
- case LCD_BITS_PER_PIXEL_1:
- default:
- // Can't handle this case
- DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: EfiBltVideoFill: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel));
- Status = EFI_INVALID_PARAMETER;
- break;
- }
-
- 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;
- LCD_BPP BitsPerPixel;
- EFI_PIXEL_BITMASK *PixelInformation;
- EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiDestinationPixel;
- VOID *FrameBufferBase;
- VOID *SourceAddr;
- VOID *DestinationAddr;
- UINT16 *SourcePixel16bit;
- UINT16 Pixel16bit;
- UINT32 SourcePixelX;
- UINT32 SourceLine;
- UINT32 DestinationPixelX;
- UINT32 DestinationLine;
- UINT32 BltBufferHorizontalResolution;
- UINTN WidthInBytes;
-
- 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;
- }
-
- LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel);
-
- switch (BitsPerPixel) {
- case LCD_BITS_PER_PIXEL_24:
- WidthInBytes = Width * 4;
-
- // Access each line inside the Video Memory
- for (SourceLine = SourceY, DestinationLine = DestinationY;
- SourceLine < SourceY + Height;
- SourceLine++, DestinationLine++)
- {
- // Calculate the source and target addresses using 32bit pointer arithmetic:
- SourceAddr = (VOID *)((UINT32 *)FrameBufferBase + SourceLine * HorizontalResolution + SourceX );
- DestinationAddr = (VOID *)((UINT32 *)BltBuffer + DestinationLine * BltBufferHorizontalResolution + DestinationX);
-
- // Copy the entire line
- CopyMem( DestinationAddr, SourceAddr, WidthInBytes);
- }
- break;
-
- case LCD_BITS_PER_PIXEL_16_555:
- // 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 ) >> 7 );
- EfiDestinationPixel->Green = (UINT8) ( (Pixel16bit & PixelInformation->GreenMask ) >> 2);
- EfiDestinationPixel->Blue = (UINT8) ( (Pixel16bit & PixelInformation->BlueMask ) << 3 );
- // EfiDestinationPixel->Reserved = (UINT8) 0;
- }
- }
- break;
-
- case LCD_BITS_PER_PIXEL_16_565:
- // 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
- // There is no info for the Reserved byte, so we set it to zero
- EfiDestinationPixel->Red = (UINT8) ( (Pixel16bit & PixelInformation->RedMask ) >> 8 );
- EfiDestinationPixel->Green = (UINT8) ( (Pixel16bit & PixelInformation->GreenMask ) >> 3);
- EfiDestinationPixel->Blue = (UINT8) ( (Pixel16bit & PixelInformation->BlueMask ) << 3 );
- // EfiDestinationPixel->Reserved = (UINT8) 0;
- }
- }
- break;
-
- case LCD_BITS_PER_PIXEL_12_444:
- // 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 ) >> 4 );
- EfiDestinationPixel->Green = (UINT8) ( (Pixel16bit & PixelInformation->GreenMask ) );
- EfiDestinationPixel->Blue = (UINT8) ( (Pixel16bit & PixelInformation->BlueMask ) << 4 );
- // EfiDestinationPixel->Reserved = (UINT8) 0;
- }
- }
- break;
-
- case LCD_BITS_PER_PIXEL_8:
- case LCD_BITS_PER_PIXEL_4:
- case LCD_BITS_PER_PIXEL_2:
- case LCD_BITS_PER_PIXEL_1:
- default:
- // Can't handle this case
- DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: EfiBltVideoToBltBuffer: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel));
- Status = EFI_INVALID_PARAMETER;
- break;
- }
- 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;
- LCD_BPP BitsPerPixel;
- EFI_PIXEL_BITMASK *PixelInformation;
- EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiSourcePixel;
- VOID *FrameBufferBase;
- VOID *SourceAddr;
- VOID *DestinationAddr;
- UINT16 *DestinationPixel16bit;
- UINT32 SourcePixelX;
- UINT32 SourceLine;
- UINT32 DestinationPixelX;
- UINT32 DestinationLine;
- UINT32 BltBufferHorizontalResolution;
- UINTN WidthInBytes;
-
- 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;
- }
-
- LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel);
-
- switch (BitsPerPixel) {
- case LCD_BITS_PER_PIXEL_24:
- WidthInBytes = Width * 4;
-
- // Access each pixel inside the BltBuffer Memory
- for (SourceLine = SourceY, DestinationLine = DestinationY;
- SourceLine < SourceY + Height;
- SourceLine++, DestinationLine++)
- {
- // Calculate the source and target addresses using 32bit pointer arithmetic:
- SourceAddr = (VOID *)((UINT32 *)BltBuffer + SourceLine * BltBufferHorizontalResolution + SourceX );
- DestinationAddr = (VOID *)((UINT32 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationX);
-
- // Copy the entire row Y
- CopyMem( DestinationAddr, SourceAddr, WidthInBytes);
- }
- break;
-
- case LCD_BITS_PER_PIXEL_16_555:
- // 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 << 7) & PixelInformation->RedMask )
- | ( (EfiSourcePixel->Green << 2) & PixelInformation->GreenMask )
- | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask )
- // | ( 0 & PixelInformation->ReservedMask )
- );
- }
- }
- break;
-
- case LCD_BITS_PER_PIXEL_16_565:
- // 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 or 6 bits per pixel we throw away the 3 or 2 least significant bits
- // There is no room for the Reserved byte so we ignore that completely
- *DestinationPixel16bit = (UINT16) (
- ( (EfiSourcePixel->Red << 8) & PixelInformation->RedMask )
- | ( (EfiSourcePixel->Green << 3) & PixelInformation->GreenMask )
- | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask )
- );
- }
- }
- break;
-
- case LCD_BITS_PER_PIXEL_12_444:
- // 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 << 4) & PixelInformation->RedMask )
- | ( (EfiSourcePixel->Green ) & PixelInformation->GreenMask )
- | ( (EfiSourcePixel->Blue >> 4) & PixelInformation->BlueMask )
- // | ( 0 & PixelInformation->ReservedMask )
- );
- }
- }
- break;
-
- case LCD_BITS_PER_PIXEL_8:
- case LCD_BITS_PER_PIXEL_4:
- case LCD_BITS_PER_PIXEL_2:
- case LCD_BITS_PER_PIXEL_1:
- default:
- // Can't handle this case
- DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: EfiBltBufferToVideo: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel));
- Status = EFI_INVALID_PARAMETER;
- break;
- }
- 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;
- LCD_BPP BitsPerPixel;
- VOID *FrameBufferBase;
-
- HorizontalResolution = This->Mode->Info->HorizontalResolution;
- FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase));
-
- //
- // BltVideo to BltVideo:
- //
- // Source is the Video Memory,
- // Destination is the Video Memory
-
- LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel);
- 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;
-}
-
-/***************************************
- * GraphicsOutput Protocol function, mapping to
- * EFI_GRAPHICS_OUTPUT_PROTOCOL.Blt
- *
- * PRESUMES: 1 pixel = 4 bytes (32bits)
- * ***************************************/
-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;
- UINT32 HorizontalResolution;
- UINT32 VerticalResolution;
- LCD_INSTANCE* Instance;
-
- Instance = LCD_INSTANCE_FROM_GOP_THIS(This);
-
- // Setup the hardware if not already done
- if (!mDisplayInitialized) {
- Status = InitializeDisplay (Instance);
- if (EFI_ERROR(Status)) {
- goto EXIT;
- }
- }
-
- HorizontalResolution = This->Mode->Info->HorizontalResolution;
- VerticalResolution = This->Mode->Info->VerticalResolution;
-
- DEBUG((DEBUG_INFO, "LcdGraphicsBlt (BltOperation:%d,DestX:%d,DestY:%d,Width:%d,Height:%d) res(%d,%d)\n",
- BltOperation,DestinationX,DestinationY,Width,Height,HorizontalResolution,VerticalResolution));
-
- // Check we have reasonable parameters
- if (Width == 0 || Height == 0) {
- DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: ERROR - Invalid dimension: Zero size area.\n" ));
- Status = EFI_INVALID_PARAMETER;
- goto EXIT;
- }
-
- if ((BltOperation == EfiBltVideoFill) || (BltOperation == EfiBltBufferToVideo) || (BltOperation == EfiBltVideoToBltBuffer)) {
- ASSERT( BltBuffer != NULL);
- }
-
- /*if ((DestinationX >= HorizontalResolution) || (DestinationY >= VerticalResolution)) {
- DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: ERROR - Invalid destination.\n" ));
- Status = EFI_INVALID_PARAMETER;
- goto EXIT;
- }*/
-
- // If we are reading data out of the video buffer, check that the source area is within the display limits
- if ((BltOperation == EfiBltVideoToBltBuffer) || (BltOperation == EfiBltVideoToVideo)) {
- if ((SourceY + Height > VerticalResolution) || (SourceX + Width > HorizontalResolution)) {
- DEBUG((DEBUG_INFO, "LcdGraphicsBlt: ERROR - Invalid source resolution.\n" ));
- DEBUG((DEBUG_INFO, " - SourceY=%d + Height=%d > VerticalResolution=%d.\n", SourceY, Height, VerticalResolution ));
- DEBUG((DEBUG_INFO, " - SourceX=%d + Width=%d > HorizontalResolution=%d.\n", SourceX, Width, HorizontalResolution ));
- Status = EFI_INVALID_PARAMETER;
- goto EXIT;
- }
- }
-
- // If we are writing data into the video buffer, that the destination area is within the display limits
- if ((BltOperation == EfiBltVideoFill) || (BltOperation == EfiBltBufferToVideo) || (BltOperation == EfiBltVideoToVideo)) {
- if ((DestinationY + Height > VerticalResolution) || (DestinationX + Width > HorizontalResolution)) {
- DEBUG((DEBUG_INFO, "LcdGraphicsBlt: ERROR - Invalid destination resolution.\n" ));
- DEBUG((DEBUG_INFO, " - DestinationY=%d + Height=%d > VerticalResolution=%d.\n", DestinationY, Height, VerticalResolution ));
- DEBUG((DEBUG_INFO, " - DestinationX=%d + Width=%d > HorizontalResolution=%d.\n", DestinationX, Width, HorizontalResolution ));
- Status = EFI_INVALID_PARAMETER;
- goto EXIT;
- }
- }
-
- //
- // Perform the Block Transfer Operation
- //
-
- 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;
- }
-
-EXIT:
- return Status;
-}
+/** @file
+
+ Copyright (c) 2011-2013, ARM Ltd. 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.
+
+ **/
+
+#include <PiDxe.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+#include <Guid/GlobalVariable.h>
+
+#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;
+ }
+
+ switch (BitsPerPixel) {
+
+ case LCD_BITS_PER_PIXEL_24:
+
+ WidthInBytes = Width * 4;
+
+ for( LineCount = 0; LineCount < Height; LineCount++ ) {
+ // Update the start addresses of source & destination using 32bit pointer arithmetic
+ SourceAddr = (VOID *)((UINT32 *)FrameBufferBase + SourceLine * HorizontalResolution + SourceX );
+ DestinationAddr = (VOID *)((UINT32 *)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;
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_16_555:
+ case LCD_BITS_PER_PIXEL_16_565:
+ case LCD_BITS_PER_PIXEL_12_444:
+
+ 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;
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_8:
+ case LCD_BITS_PER_PIXEL_4:
+ case LCD_BITS_PER_PIXEL_2:
+ case LCD_BITS_PER_PIXEL_1:
+ default:
+ // Can't handle this case
+ DEBUG((DEBUG_ERROR, "ArmVeGraphics_Blt: EfiBltVideoToVideo: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel));
+ Status = EFI_INVALID_PARAMETER;
+ goto EXIT;
+ // break;
+
+ }
+
+ EXIT:
+ 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;
+
+ UINT32 *PixelBuffer32bit;
+ UINT32 *SourcePixel32bit;
+ UINT32 *DestinationPixel32bit;
+
+ UINT16 *PixelBuffer16bit;
+ UINT16 *SourcePixel16bit;
+ UINT16 *DestinationPixel16bit;
+
+ UINT32 SourcePixelY;
+ UINT32 DestinationPixelY;
+ UINTN SizeIn32Bits;
+ UINTN SizeIn16Bits;
+
+ switch (BitsPerPixel) {
+
+ case LCD_BITS_PER_PIXEL_24:
+ // Allocate a temporary buffer
+
+ PixelBuffer32bit = (UINT32 *) AllocatePool((Height * Width) * sizeof(UINT32));
+
+ if (PixelBuffer32bit == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto EXIT;
+ }
+
+ SizeIn32Bits = Width * 4;
+
+ // Copy from the video ram (source region) to a temp buffer
+ for (SourcePixelY = SourceY, DestinationPixel32bit = PixelBuffer32bit;
+ SourcePixelY < SourceY + Height;
+ SourcePixelY++, DestinationPixel32bit += Width)
+ {
+ // Update the start address of line Y (source)
+ SourcePixel32bit = (UINT32 *)FrameBufferBase + SourcePixelY * HorizontalResolution + SourceX;
+
+ // Copy the entire line Y from video ram to the temp buffer
+ CopyMem( (VOID *)DestinationPixel32bit, (CONST VOID *)SourcePixel32bit, SizeIn32Bits);
+ }
+
+ // Copy from the temp buffer to the video ram (destination region)
+ for (DestinationPixelY = DestinationY, SourcePixel32bit = PixelBuffer32bit;
+ DestinationPixelY < DestinationY + Height;
+ DestinationPixelY++, SourcePixel32bit += Width)
+ {
+ // Update the start address of line Y (target)
+ DestinationPixel32bit = (UINT32 *)FrameBufferBase + DestinationPixelY * HorizontalResolution + DestinationX;
+
+ // Copy the entire line Y from the temp buffer to video ram
+ CopyMem( (VOID *)DestinationPixel32bit, (CONST VOID *)SourcePixel32bit, SizeIn32Bits);
+ }
+
+ // Free up the allocated memory
+ FreePool((VOID *) PixelBuffer32bit);
+
+ break;
+
+
+ case LCD_BITS_PER_PIXEL_16_555:
+ case LCD_BITS_PER_PIXEL_16_565:
+ case LCD_BITS_PER_PIXEL_12_444:
+ // 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);
+
+ break;
+
+
+ case LCD_BITS_PER_PIXEL_8:
+ case LCD_BITS_PER_PIXEL_4:
+ case LCD_BITS_PER_PIXEL_2:
+ case LCD_BITS_PER_PIXEL_1:
+ default:
+ // Can't handle this case
+ DEBUG((DEBUG_ERROR, "ArmVeGraphics_Blt: EfiBltVideoToVideo: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel));
+ Status = EFI_INVALID_PARAMETER;
+ goto EXIT;
+ // break;
+
+ }
+
+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;
+ LCD_BPP BitsPerPixel;
+ VOID *FrameBufferBase;
+ VOID *DestinationAddr;
+ UINT16 *DestinationPixel16bit;
+ UINT16 Pixel16bit;
+ UINT32 DestinationPixelX;
+ UINT32 DestinationLine;
+ UINTN WidthInBytes;
+
+ Status = EFI_SUCCESS;
+ PixelInformation = &This->Mode->Info->PixelInformation;
+ FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase));
+ HorizontalResolution = This->Mode->Info->HorizontalResolution;
+
+ LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel);
+
+ switch (BitsPerPixel) {
+ case LCD_BITS_PER_PIXEL_24:
+ WidthInBytes = Width * 4;
+
+ // Copy the SourcePixel into every pixel inside the target rectangle
+ for (DestinationLine = DestinationY;
+ DestinationLine < DestinationY + Height;
+ DestinationLine++)
+ {
+ // Calculate the target address using 32bit pointer arithmetic:
+ DestinationAddr = (VOID *)((UINT32 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationX);
+
+ // Fill the entire line
+ SetMemN( DestinationAddr, WidthInBytes, *((UINT32 *)EfiSourcePixel));
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_16_555:
+ // Convert the EFI pixel at the start of the BltBuffer(0,0) into a video display pixel
+ Pixel16bit = (UINT16) (
+ ( (EfiSourcePixel->Red << 7) & PixelInformation->RedMask )
+ | ( (EfiSourcePixel->Green << 2) & PixelInformation->GreenMask )
+ | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask )
+// | ( 0 & PixelInformation->ReservedMask )
+ );
+
+ // 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;
+ }
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_16_565:
+ // 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;
+ }
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_12_444:
+ // Convert the EFI pixel at the start of the BltBuffer(0,0) into a video display pixel
+ Pixel16bit = (UINT16) (
+ ( (EfiSourcePixel->Red >> 4) & PixelInformation->RedMask )
+ | ( (EfiSourcePixel->Green ) & PixelInformation->GreenMask )
+ | ( (EfiSourcePixel->Blue << 4) & 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;
+ }
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_8:
+ case LCD_BITS_PER_PIXEL_4:
+ case LCD_BITS_PER_PIXEL_2:
+ case LCD_BITS_PER_PIXEL_1:
+ default:
+ // Can't handle this case
+ DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: EfiBltVideoFill: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel));
+ Status = EFI_INVALID_PARAMETER;
+ break;
+ }
+
+ 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;
+ LCD_BPP BitsPerPixel;
+ EFI_PIXEL_BITMASK *PixelInformation;
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiDestinationPixel;
+ VOID *FrameBufferBase;
+ VOID *SourceAddr;
+ VOID *DestinationAddr;
+ UINT16 *SourcePixel16bit;
+ UINT16 Pixel16bit;
+ UINT32 SourcePixelX;
+ UINT32 SourceLine;
+ UINT32 DestinationPixelX;
+ UINT32 DestinationLine;
+ UINT32 BltBufferHorizontalResolution;
+ UINTN WidthInBytes;
+
+ 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;
+ }
+
+ LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel);
+
+ switch (BitsPerPixel) {
+ case LCD_BITS_PER_PIXEL_24:
+ WidthInBytes = Width * 4;
+
+ // Access each line inside the Video Memory
+ for (SourceLine = SourceY, DestinationLine = DestinationY;
+ SourceLine < SourceY + Height;
+ SourceLine++, DestinationLine++)
+ {
+ // Calculate the source and target addresses using 32bit pointer arithmetic:
+ SourceAddr = (VOID *)((UINT32 *)FrameBufferBase + SourceLine * HorizontalResolution + SourceX );
+ DestinationAddr = (VOID *)((UINT32 *)BltBuffer + DestinationLine * BltBufferHorizontalResolution + DestinationX);
+
+ // Copy the entire line
+ CopyMem( DestinationAddr, SourceAddr, WidthInBytes);
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_16_555:
+ // 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 ) >> 7 );
+ EfiDestinationPixel->Green = (UINT8) ( (Pixel16bit & PixelInformation->GreenMask ) >> 2);
+ EfiDestinationPixel->Blue = (UINT8) ( (Pixel16bit & PixelInformation->BlueMask ) << 3 );
+ // EfiDestinationPixel->Reserved = (UINT8) 0;
+ }
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_16_565:
+ // 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
+ // There is no info for the Reserved byte, so we set it to zero
+ EfiDestinationPixel->Red = (UINT8) ( (Pixel16bit & PixelInformation->RedMask ) >> 8 );
+ EfiDestinationPixel->Green = (UINT8) ( (Pixel16bit & PixelInformation->GreenMask ) >> 3);
+ EfiDestinationPixel->Blue = (UINT8) ( (Pixel16bit & PixelInformation->BlueMask ) << 3 );
+ // EfiDestinationPixel->Reserved = (UINT8) 0;
+ }
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_12_444:
+ // 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 ) >> 4 );
+ EfiDestinationPixel->Green = (UINT8) ( (Pixel16bit & PixelInformation->GreenMask ) );
+ EfiDestinationPixel->Blue = (UINT8) ( (Pixel16bit & PixelInformation->BlueMask ) << 4 );
+ // EfiDestinationPixel->Reserved = (UINT8) 0;
+ }
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_8:
+ case LCD_BITS_PER_PIXEL_4:
+ case LCD_BITS_PER_PIXEL_2:
+ case LCD_BITS_PER_PIXEL_1:
+ default:
+ // Can't handle this case
+ DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: EfiBltVideoToBltBuffer: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel));
+ Status = EFI_INVALID_PARAMETER;
+ break;
+ }
+ 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;
+ LCD_BPP BitsPerPixel;
+ EFI_PIXEL_BITMASK *PixelInformation;
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiSourcePixel;
+ VOID *FrameBufferBase;
+ VOID *SourceAddr;
+ VOID *DestinationAddr;
+ UINT16 *DestinationPixel16bit;
+ UINT32 SourcePixelX;
+ UINT32 SourceLine;
+ UINT32 DestinationPixelX;
+ UINT32 DestinationLine;
+ UINT32 BltBufferHorizontalResolution;
+ UINTN WidthInBytes;
+
+ 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;
+ }
+
+ LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel);
+
+ switch (BitsPerPixel) {
+ case LCD_BITS_PER_PIXEL_24:
+ WidthInBytes = Width * 4;
+
+ // Access each pixel inside the BltBuffer Memory
+ for (SourceLine = SourceY, DestinationLine = DestinationY;
+ SourceLine < SourceY + Height;
+ SourceLine++, DestinationLine++)
+ {
+ // Calculate the source and target addresses using 32bit pointer arithmetic:
+ SourceAddr = (VOID *)((UINT32 *)BltBuffer + SourceLine * BltBufferHorizontalResolution + SourceX );
+ DestinationAddr = (VOID *)((UINT32 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationX);
+
+ // Copy the entire row Y
+ CopyMem( DestinationAddr, SourceAddr, WidthInBytes);
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_16_555:
+ // 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 << 7) & PixelInformation->RedMask )
+ | ( (EfiSourcePixel->Green << 2) & PixelInformation->GreenMask )
+ | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask )
+ // | ( 0 & PixelInformation->ReservedMask )
+ );
+ }
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_16_565:
+ // 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 or 6 bits per pixel we throw away the 3 or 2 least significant bits
+ // There is no room for the Reserved byte so we ignore that completely
+ *DestinationPixel16bit = (UINT16) (
+ ( (EfiSourcePixel->Red << 8) & PixelInformation->RedMask )
+ | ( (EfiSourcePixel->Green << 3) & PixelInformation->GreenMask )
+ | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask )
+ );
+ }
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_12_444:
+ // 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 << 4) & PixelInformation->RedMask )
+ | ( (EfiSourcePixel->Green ) & PixelInformation->GreenMask )
+ | ( (EfiSourcePixel->Blue >> 4) & PixelInformation->BlueMask )
+ // | ( 0 & PixelInformation->ReservedMask )
+ );
+ }
+ }
+ break;
+
+ case LCD_BITS_PER_PIXEL_8:
+ case LCD_BITS_PER_PIXEL_4:
+ case LCD_BITS_PER_PIXEL_2:
+ case LCD_BITS_PER_PIXEL_1:
+ default:
+ // Can't handle this case
+ DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: EfiBltBufferToVideo: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel));
+ Status = EFI_INVALID_PARAMETER;
+ break;
+ }
+ 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;
+ LCD_BPP BitsPerPixel;
+ VOID *FrameBufferBase;
+
+ HorizontalResolution = This->Mode->Info->HorizontalResolution;
+ FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase));
+
+ //
+ // BltVideo to BltVideo:
+ //
+ // Source is the Video Memory,
+ // Destination is the Video Memory
+
+ LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel);
+ 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;
+}
+
+/***************************************
+ * GraphicsOutput Protocol function, mapping to
+ * EFI_GRAPHICS_OUTPUT_PROTOCOL.Blt
+ *
+ * PRESUMES: 1 pixel = 4 bytes (32bits)
+ * ***************************************/
+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;
+ UINT32 HorizontalResolution;
+ UINT32 VerticalResolution;
+ LCD_INSTANCE* Instance;
+
+ Instance = LCD_INSTANCE_FROM_GOP_THIS(This);
+
+ // Setup the hardware if not already done
+ if (!mDisplayInitialized) {
+ Status = InitializeDisplay (Instance);
+ if (EFI_ERROR(Status)) {
+ goto EXIT;
+ }
+ }
+
+ HorizontalResolution = This->Mode->Info->HorizontalResolution;
+ VerticalResolution = This->Mode->Info->VerticalResolution;
+
+ DEBUG((DEBUG_INFO, "LcdGraphicsBlt (BltOperation:%d,DestX:%d,DestY:%d,Width:%d,Height:%d) res(%d,%d)\n",
+ BltOperation,DestinationX,DestinationY,Width,Height,HorizontalResolution,VerticalResolution));
+
+ // Check we have reasonable parameters
+ if (Width == 0 || Height == 0) {
+ DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: ERROR - Invalid dimension: Zero size area.\n" ));
+ Status = EFI_INVALID_PARAMETER;
+ goto EXIT;
+ }
+
+ if ((BltOperation == EfiBltVideoFill) || (BltOperation == EfiBltBufferToVideo) || (BltOperation == EfiBltVideoToBltBuffer)) {
+ ASSERT( BltBuffer != NULL);
+ }
+
+ /*if ((DestinationX >= HorizontalResolution) || (DestinationY >= VerticalResolution)) {
+ DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: ERROR - Invalid destination.\n" ));
+ Status = EFI_INVALID_PARAMETER;
+ goto EXIT;
+ }*/
+
+ // If we are reading data out of the video buffer, check that the source area is within the display limits
+ if ((BltOperation == EfiBltVideoToBltBuffer) || (BltOperation == EfiBltVideoToVideo)) {
+ if ((SourceY + Height > VerticalResolution) || (SourceX + Width > HorizontalResolution)) {
+ DEBUG((DEBUG_INFO, "LcdGraphicsBlt: ERROR - Invalid source resolution.\n" ));
+ DEBUG((DEBUG_INFO, " - SourceY=%d + Height=%d > VerticalResolution=%d.\n", SourceY, Height, VerticalResolution ));
+ DEBUG((DEBUG_INFO, " - SourceX=%d + Width=%d > HorizontalResolution=%d.\n", SourceX, Width, HorizontalResolution ));
+ Status = EFI_INVALID_PARAMETER;
+ goto EXIT;
+ }
+ }
+
+ // If we are writing data into the video buffer, that the destination area is within the display limits
+ if ((BltOperation == EfiBltVideoFill) || (BltOperation == EfiBltBufferToVideo) || (BltOperation == EfiBltVideoToVideo)) {
+ if ((DestinationY + Height > VerticalResolution) || (DestinationX + Width > HorizontalResolution)) {
+ DEBUG((DEBUG_INFO, "LcdGraphicsBlt: ERROR - Invalid destination resolution.\n" ));
+ DEBUG((DEBUG_INFO, " - DestinationY=%d + Height=%d > VerticalResolution=%d.\n", DestinationY, Height, VerticalResolution ));
+ DEBUG((DEBUG_INFO, " - DestinationX=%d + Width=%d > HorizontalResolution=%d.\n", DestinationX, Width, HorizontalResolution ));
+ Status = EFI_INVALID_PARAMETER;
+ goto EXIT;
+ }
+ }
+
+ //
+ // Perform the Block Transfer Operation
+ //
+
+ 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;
+ }
+
+EXIT:
+ return Status;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-18 05:47:00 +0000