-/** @file\r
- FrameBufferBltLib - Library to perform blt operations on a frame buffer.\r
-\r
- Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>\r
- SPDX-License-Identifier: BSD-2-Clause-Patent\r
-\r
-**/\r
-\r
-#include "PiDxe.h"\r
-#include <Library/BaseLib.h>\r
-#include <Library/BaseMemoryLib.h>\r
-#include <Library/BltLib.h>\r
-#include <Library/DebugLib.h>\r
-\r
-#if 0\r
-#define VDEBUG DEBUG\r
-#else\r
-#define VDEBUG(x)\r
-#endif\r
-\r
-#define MAX_LINE_BUFFER_SIZE (SIZE_4KB * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL))\r
-\r
-UINTN mBltLibColorDepth;\r
-UINTN mBltLibWidthInBytes;\r
-UINTN mBltLibBytesPerPixel;\r
-UINTN mBltLibWidthInPixels;\r
-UINTN mBltLibHeight;\r
-UINT8 mBltLibLineBuffer[MAX_LINE_BUFFER_SIZE];\r
-UINT8 *mBltLibFrameBuffer;\r
-EFI_GRAPHICS_PIXEL_FORMAT mPixelFormat;\r
-EFI_PIXEL_BITMASK mPixelBitMasks;\r
-INTN mPixelShl[4]; // R-G-B-Rsvd\r
-INTN mPixelShr[4]; // R-G-B-Rsvd\r
-\r
-\r
-VOID\r
-ConfigurePixelBitMaskFormat (\r
- IN EFI_PIXEL_BITMASK *BitMask\r
- )\r
-{\r
- UINTN Loop;\r
- UINT32 *Masks;\r
- UINT32 MergedMasks;\r
-\r
- MergedMasks = 0;\r
- Masks = (UINT32*) BitMask;\r
- for (Loop = 0; Loop < 3; Loop++) {\r
- ASSERT ((Loop == 3) || (Masks[Loop] != 0));\r
- ASSERT ((MergedMasks & Masks[Loop]) == 0);\r
- mPixelShl[Loop] = HighBitSet32 (Masks[Loop]) - 23 + (Loop * 8);\r
- if (mPixelShl[Loop] < 0) {\r
- mPixelShr[Loop] = -mPixelShl[Loop];\r
- mPixelShl[Loop] = 0;\r
- } else {\r
- mPixelShr[Loop] = 0;\r
- }\r
- MergedMasks = (UINT32) (MergedMasks | Masks[Loop]);\r
- DEBUG ((EFI_D_INFO, "%d: shl:%d shr:%d mask:%x\n", Loop, mPixelShl[Loop], mPixelShr[Loop], Masks[Loop]));\r
- }\r
- MergedMasks = (UINT32) (MergedMasks | Masks[3]);\r
-\r
- ASSERT (MergedMasks != 0);\r
- mBltLibBytesPerPixel = (UINTN) ((HighBitSet32 (MergedMasks) + 7) / 8);\r
-\r
- DEBUG ((EFI_D_INFO, "Bytes per pixel: %d\n", mBltLibBytesPerPixel));\r
-\r
- CopyMem (&mPixelBitMasks, BitMask, sizeof (*BitMask));\r
-}\r
-\r
-\r
-/**\r
- Configure the FrameBufferLib instance\r
-\r
- @param[in] FrameBuffer Pointer to the start of the frame buffer\r
- @param[in] FrameBufferInfo Describes the frame buffer characteristics\r
-\r
- @retval EFI_INVALID_PARAMETER - Invalid parameter\r
- @retval EFI_UNSUPPORTED - The BltLib does not support this configuration\r
- @retval EFI_SUCCESS - Blt operation success\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-BltLibConfigure (\r
- IN VOID *FrameBuffer,\r
- IN EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *FrameBufferInfo\r
- )\r
-{\r
- STATIC EFI_PIXEL_BITMASK RgbPixelMasks =\r
- { 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000 };\r
- STATIC EFI_PIXEL_BITMASK BgrPixelMasks =\r
- { 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 };\r
-\r
- switch (FrameBufferInfo->PixelFormat) {\r
- case PixelRedGreenBlueReserved8BitPerColor:\r
- ConfigurePixelBitMaskFormat (&RgbPixelMasks);\r
- break;\r
- case PixelBlueGreenRedReserved8BitPerColor:\r
- ConfigurePixelBitMaskFormat (&BgrPixelMasks);\r
- break;\r
- case PixelBitMask:\r
- ConfigurePixelBitMaskFormat (&(FrameBufferInfo->PixelInformation));\r
- break;\r
- case PixelBltOnly:\r
- ASSERT (FrameBufferInfo->PixelFormat != PixelBltOnly);\r
- return EFI_UNSUPPORTED;\r
- default:\r
- ASSERT (FALSE);\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- mPixelFormat = FrameBufferInfo->PixelFormat;\r
-\r
- mBltLibFrameBuffer = (UINT8*) FrameBuffer;\r
- mBltLibWidthInPixels = (UINTN) FrameBufferInfo->HorizontalResolution;\r
- mBltLibHeight = (UINTN) FrameBufferInfo->VerticalResolution;\r
- mBltLibWidthInBytes = mBltLibWidthInPixels * mBltLibBytesPerPixel;\r
-\r
- ASSERT (mBltLibWidthInBytes < sizeof (mBltLibLineBuffer));\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-/**\r
- Performs a UEFI Graphics Output Protocol Blt operation.\r
-\r
- @param[in,out] BltBuffer - The data to transfer to screen\r
- @param[in] BltOperation - The operation to perform\r
- @param[in] SourceX - The X coordinate of the source for BltOperation\r
- @param[in] SourceY - The Y coordinate of the source for BltOperation\r
- @param[in] DestinationX - The X coordinate of the destination for BltOperation\r
- @param[in] DestinationY - The Y coordinate of the destination for BltOperation\r
- @param[in] Width - The width of a rectangle in the blt rectangle in pixels\r
- @param[in] Height - The height of a rectangle in the blt rectangle in pixels\r
- @param[in] Delta - Not used for EfiBltVideoFill and EfiBltVideoToVideo operation.\r
- If a Delta of 0 is used, the entire BltBuffer will be operated on.\r
- If a subrectangle of the BltBuffer is used, then Delta represents\r
- the number of bytes in a row of the BltBuffer.\r
-\r
- @retval EFI_DEVICE_ERROR - A hardware error occured\r
- @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r
- @retval EFI_SUCCESS - Blt operation success\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-BltLibGopBlt (\r
- IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL\r
- IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,\r
- IN UINTN SourceX,\r
- IN UINTN SourceY,\r
- IN UINTN DestinationX,\r
- IN UINTN DestinationY,\r
- IN UINTN Width,\r
- IN UINTN Height,\r
- IN UINTN Delta\r
- )\r
-{\r
- switch (BltOperation) {\r
- case EfiBltVideoToBltBuffer:\r
- return BltLibVideoToBltBufferEx (\r
- BltBuffer,\r
- SourceX,\r
- SourceY,\r
- DestinationX,\r
- DestinationY,\r
- Width,\r
- Height,\r
- Delta\r
- );\r
-\r
- case EfiBltVideoToVideo:\r
- return BltLibVideoToVideo (\r
- SourceX,\r
- SourceY,\r
- DestinationX,\r
- DestinationY,\r
- Width,\r
- Height\r
- );\r
-\r
- case EfiBltVideoFill:\r
- return BltLibVideoFill (\r
- BltBuffer,\r
- DestinationX,\r
- DestinationY,\r
- Width,\r
- Height\r
- );\r
-\r
- case EfiBltBufferToVideo:\r
- return BltLibBufferToVideoEx (\r
- BltBuffer,\r
- SourceX,\r
- SourceY,\r
- DestinationX,\r
- DestinationY,\r
- Width,\r
- Height,\r
- Delta\r
- );\r
- default:\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-}\r
-\r
-\r
-/**\r
- Performs a UEFI Graphics Output Protocol Blt Video Fill.\r
-\r
- @param[in] Color Color to fill the region with\r
- @param[in] DestinationX X location to start fill operation\r
- @param[in] DestinationY Y location to start fill operation\r
- @param[in] Width Width (in pixels) to fill\r
- @param[in] Height Height to fill\r
-\r
- @retval EFI_DEVICE_ERROR - A hardware error occured\r
- @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r
- @retval EFI_SUCCESS - The sizes were returned\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-BltLibVideoFill (\r
- IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Color,\r
- IN UINTN DestinationX,\r
- IN UINTN DestinationY,\r
- IN UINTN Width,\r
- IN UINTN Height\r
- )\r
-{\r
- UINTN DstY;\r
- VOID *BltMemDst;\r
- UINTN X;\r
- UINT8 Uint8;\r
- UINT32 Uint32;\r
- UINT64 WideFill;\r
- BOOLEAN UseWideFill;\r
- BOOLEAN LineBufferReady;\r
- UINTN Offset;\r
- UINTN WidthInBytes;\r
- UINTN SizeInBytes;\r
-\r
- //\r
- // BltBuffer to Video: Source is BltBuffer, destination is Video\r
- //\r
- if (DestinationY + Height > mBltLibHeight) {\r
- DEBUG ((EFI_D_INFO, "VideoFill: Past screen (Y)\n"));\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (DestinationX + Width > mBltLibWidthInPixels) {\r
- DEBUG ((EFI_D_INFO, "VideoFill: Past screen (X)\n"));\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Width == 0 || Height == 0) {\r
- DEBUG ((EFI_D_INFO, "VideoFill: Width or Height is 0\n"));\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- WidthInBytes = Width * mBltLibBytesPerPixel;\r
-\r
- Uint32 = *(UINT32*) Color;\r
- WideFill =\r
- (UINT32) (\r
- (((Uint32 << mPixelShl[0]) >> mPixelShr[0]) & mPixelBitMasks.RedMask) |\r
- (((Uint32 << mPixelShl[1]) >> mPixelShr[1]) & mPixelBitMasks.GreenMask) |\r
- (((Uint32 << mPixelShl[2]) >> mPixelShr[2]) & mPixelBitMasks.BlueMask)\r
- );\r
- VDEBUG ((EFI_D_INFO, "VideoFill: color=0x%x, wide-fill=0x%x\n", Uint32, WideFill));\r
-\r
- //\r
- // If the size of the pixel data evenly divides the sizeof\r
- // WideFill, then a wide fill operation can be used\r
- //\r
- UseWideFill = TRUE;\r
- if ((sizeof (WideFill) % mBltLibBytesPerPixel) == 0) {\r
- for (X = mBltLibBytesPerPixel; X < sizeof (WideFill); X++) {\r
- ((UINT8*)&WideFill)[X] = ((UINT8*)&WideFill)[X % mBltLibBytesPerPixel];\r
- }\r
- } else {\r
- //\r
- // If all the bytes in the pixel are the same value, then use\r
- // a wide fill operation.\r
- //\r
- for (\r
- X = 1, Uint8 = ((UINT8*)&WideFill)[0];\r
- X < mBltLibBytesPerPixel;\r
- X++) {\r
- if (Uint8 != ((UINT8*)&WideFill)[X]) {\r
- UseWideFill = FALSE;\r
- break;\r
- }\r
- }\r
- if (UseWideFill) {\r
- SetMem ((VOID*) &WideFill, sizeof (WideFill), Uint8);\r
- }\r
- }\r
-\r
- if (UseWideFill && (DestinationX == 0) && (Width == mBltLibWidthInPixels)) {\r
- VDEBUG ((EFI_D_INFO, "VideoFill (wide, one-shot)\n"));\r
- Offset = DestinationY * mBltLibWidthInPixels;\r
- Offset = mBltLibBytesPerPixel * Offset;\r
- BltMemDst = (VOID*) (mBltLibFrameBuffer + Offset);\r
- SizeInBytes = WidthInBytes * Height;\r
- if (SizeInBytes >= 8) {\r
- SetMem32 (BltMemDst, SizeInBytes & ~3, (UINT32) WideFill);\r
- SizeInBytes = SizeInBytes & 3;\r
- }\r
- if (SizeInBytes > 0) {\r
- SetMem (BltMemDst, SizeInBytes, (UINT8)(UINTN) WideFill);\r
- }\r
- } else {\r
- LineBufferReady = FALSE;\r
- for (DstY = DestinationY; DstY < (Height + DestinationY); DstY++) {\r
- Offset = (DstY * mBltLibWidthInPixels) + DestinationX;\r
- Offset = mBltLibBytesPerPixel * Offset;\r
- BltMemDst = (VOID*) (mBltLibFrameBuffer + Offset);\r
-\r
- if (UseWideFill && (((UINTN) BltMemDst & 7) == 0)) {\r
- VDEBUG ((EFI_D_INFO, "VideoFill (wide)\n"));\r
- SizeInBytes = WidthInBytes;\r
- if (SizeInBytes >= 8) {\r
- SetMem64 (BltMemDst, SizeInBytes & ~7, WideFill);\r
- SizeInBytes = SizeInBytes & 7;\r
- }\r
- if (SizeInBytes > 0) {\r
- CopyMem (BltMemDst, (VOID*) &WideFill, SizeInBytes);\r
- }\r
- } else {\r
- VDEBUG ((EFI_D_INFO, "VideoFill (not wide)\n"));\r
- if (!LineBufferReady) {\r
- CopyMem (mBltLibLineBuffer, &WideFill, mBltLibBytesPerPixel);\r
- for (X = 1; X < Width; ) {\r
- CopyMem(\r
- (mBltLibLineBuffer + (X * mBltLibBytesPerPixel)),\r
- mBltLibLineBuffer,\r
- MIN (X, Width - X) * mBltLibBytesPerPixel\r
- );\r
- X = X + MIN (X, Width - X);\r
- }\r
- LineBufferReady = TRUE;\r
- }\r
- CopyMem (BltMemDst, mBltLibLineBuffer, WidthInBytes);\r
- }\r
- }\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-/**\r
- Performs a UEFI Graphics Output Protocol Blt Video to Buffer operation.\r
-\r
- @param[out] BltBuffer Output buffer for pixel color data\r
- @param[in] SourceX X location within video\r
- @param[in] SourceY Y location within video\r
- @param[in] Width Width (in pixels)\r
- @param[in] Height Height\r
-\r
- @retval EFI_DEVICE_ERROR - A hardware error occured\r
- @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r
- @retval EFI_SUCCESS - The sizes were returned\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-BltLibVideoToBltBuffer (\r
- OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer,\r
- IN UINTN SourceX,\r
- IN UINTN SourceY,\r
- IN UINTN Width,\r
- IN UINTN Height\r
- )\r
-{\r
- return BltLibVideoToBltBufferEx (\r
- BltBuffer,\r
- SourceX,\r
- SourceY,\r
- 0,\r
- 0,\r
- Width,\r
- Height,\r
- 0\r
- );\r
-}\r
-\r
-\r
-/**\r
- Performs a UEFI Graphics Output Protocol Blt Video to Buffer operation\r
- with extended parameters.\r
-\r
- @param[out] BltBuffer Output buffer for pixel color data\r
- @param[in] SourceX X location within video\r
- @param[in] SourceY Y location within video\r
- @param[in] DestinationX X location within BltBuffer\r
- @param[in] DestinationY Y location within BltBuffer\r
- @param[in] Width Width (in pixels)\r
- @param[in] Height Height\r
- @param[in] Delta Number of bytes in a row of BltBuffer\r
-\r
- @retval EFI_DEVICE_ERROR - A hardware error occured\r
- @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r
- @retval EFI_SUCCESS - The sizes were returned\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-BltLibVideoToBltBufferEx (\r
- OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer,\r
- IN UINTN SourceX,\r
- IN UINTN SourceY,\r
- IN UINTN DestinationX,\r
- IN UINTN DestinationY,\r
- IN UINTN Width,\r
- IN UINTN Height,\r
- IN UINTN Delta\r
- )\r
-{\r
- UINTN DstY;\r
- UINTN SrcY;\r
- EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Blt;\r
- VOID *BltMemSrc;\r
- VOID *BltMemDst;\r
- UINTN X;\r
- UINT32 Uint32;\r
- UINTN Offset;\r
- UINTN WidthInBytes;\r
-\r
- //\r
- // Video to BltBuffer: Source is Video, destination is BltBuffer\r
- //\r
- if (SourceY + Height > mBltLibHeight) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (SourceX + Width > mBltLibWidthInPixels) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Width == 0 || Height == 0) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- //\r
- // If Delta is zero, then the entire BltBuffer is being used, so Delta\r
- // is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size,\r
- // the number of bytes in each row can be computed.\r
- //\r
- if (Delta == 0) {\r
- Delta = Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL);\r
- }\r
-\r
- WidthInBytes = Width * mBltLibBytesPerPixel;\r
-\r
- //\r
- // Video to BltBuffer: Source is Video, destination is BltBuffer\r
- //\r
- for (SrcY = SourceY, DstY = DestinationY; DstY < (Height + DestinationY); SrcY++, DstY++) {\r
-\r
- Offset = (SrcY * mBltLibWidthInPixels) + SourceX;\r
- Offset = mBltLibBytesPerPixel * Offset;\r
- BltMemSrc = (VOID *) (mBltLibFrameBuffer + Offset);\r
-\r
- if (mPixelFormat == PixelBlueGreenRedReserved8BitPerColor) {\r
- BltMemDst =\r
- (VOID *) (\r
- (UINT8 *) BltBuffer +\r
- (DstY * Delta) +\r
- (DestinationX * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL))\r
- );\r
- } else {\r
- BltMemDst = (VOID *) mBltLibLineBuffer;\r
- }\r
-\r
- CopyMem (BltMemDst, BltMemSrc, WidthInBytes);\r
-\r
- if (mPixelFormat != PixelBlueGreenRedReserved8BitPerColor) {\r
- for (X = 0; X < Width; X++) {\r
- Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) ((UINT8 *) BltBuffer + (DstY * Delta) + (DestinationX + X) * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));\r
- Uint32 = *(UINT32*) (mBltLibLineBuffer + (X * mBltLibBytesPerPixel));\r
- *(UINT32*) Blt =\r
- (UINT32) (\r
- (((Uint32 & mPixelBitMasks.RedMask) >> mPixelShl[0]) << mPixelShr[0]) |\r
- (((Uint32 & mPixelBitMasks.GreenMask) >> mPixelShl[1]) << mPixelShr[1]) |\r
- (((Uint32 & mPixelBitMasks.BlueMask) >> mPixelShl[2]) << mPixelShr[2])\r
- );\r
- }\r
- }\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-/**\r
- Performs a UEFI Graphics Output Protocol Blt Buffer to Video operation.\r
-\r
- @param[in] BltBuffer Output buffer for pixel color data\r
- @param[in] DestinationX X location within video\r
- @param[in] DestinationY Y location within video\r
- @param[in] Width Width (in pixels)\r
- @param[in] Height Height\r
-\r
- @retval EFI_DEVICE_ERROR - A hardware error occured\r
- @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r
- @retval EFI_SUCCESS - The sizes were returned\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-BltLibBufferToVideo (\r
- IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer,\r
- IN UINTN DestinationX,\r
- IN UINTN DestinationY,\r
- IN UINTN Width,\r
- IN UINTN Height\r
- )\r
-{\r
- return BltLibBufferToVideoEx (\r
- BltBuffer,\r
- 0,\r
- 0,\r
- DestinationX,\r
- DestinationY,\r
- Width,\r
- Height,\r
- 0\r
- );\r
-}\r
-\r
-\r
-/**\r
- Performs a UEFI Graphics Output Protocol Blt Buffer to Video operation\r
- with extended parameters.\r
-\r
- @param[in] BltBuffer Output buffer for pixel color data\r
- @param[in] SourceX X location within BltBuffer\r
- @param[in] SourceY Y location within BltBuffer\r
- @param[in] DestinationX X location within video\r
- @param[in] DestinationY Y location within video\r
- @param[in] Width Width (in pixels)\r
- @param[in] Height Height\r
- @param[in] Delta Number of bytes in a row of BltBuffer\r
-\r
- @retval EFI_DEVICE_ERROR - A hardware error occured\r
- @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r
- @retval EFI_SUCCESS - The sizes were returned\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-BltLibBufferToVideoEx (\r
- IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer,\r
- IN UINTN SourceX,\r
- IN UINTN SourceY,\r
- IN UINTN DestinationX,\r
- IN UINTN DestinationY,\r
- IN UINTN Width,\r
- IN UINTN Height,\r
- IN UINTN Delta\r
- )\r
-{\r
- UINTN DstY;\r
- UINTN SrcY;\r
- EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Blt;\r
- VOID *BltMemSrc;\r
- VOID *BltMemDst;\r
- UINTN X;\r
- UINT32 Uint32;\r
- UINTN Offset;\r
- UINTN WidthInBytes;\r
-\r
- //\r
- // BltBuffer to Video: Source is BltBuffer, destination is Video\r
- //\r
- if (DestinationY + Height > mBltLibHeight) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (DestinationX + Width > mBltLibWidthInPixels) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Width == 0 || Height == 0) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- //\r
- // If Delta is zero, then the entire BltBuffer is being used, so Delta\r
- // is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size,\r
- // the number of bytes in each row can be computed.\r
- //\r
- if (Delta == 0) {\r
- Delta = Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL);\r
- }\r
-\r
- WidthInBytes = Width * mBltLibBytesPerPixel;\r
-\r
- for (SrcY = SourceY, DstY = DestinationY; SrcY < (Height + SourceY); SrcY++, DstY++) {\r
-\r
- Offset = (DstY * mBltLibWidthInPixels) + DestinationX;\r
- Offset = mBltLibBytesPerPixel * Offset;\r
- BltMemDst = (VOID*) (mBltLibFrameBuffer + Offset);\r
-\r
- if (mPixelFormat == PixelBlueGreenRedReserved8BitPerColor) {\r
- BltMemSrc = (VOID *) ((UINT8 *) BltBuffer + (SrcY * Delta));\r
- } else {\r
- for (X = 0; X < Width; X++) {\r
- Blt =\r
- (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) (\r
- (UINT8 *) BltBuffer +\r
- (SrcY * Delta) +\r
- ((SourceX + X) * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL))\r
- );\r
- Uint32 = *(UINT32*) Blt;\r
- *(UINT32*) (mBltLibLineBuffer + (X * mBltLibBytesPerPixel)) =\r
- (UINT32) (\r
- (((Uint32 << mPixelShl[0]) >> mPixelShr[0]) & mPixelBitMasks.RedMask) |\r
- (((Uint32 << mPixelShl[1]) >> mPixelShr[1]) & mPixelBitMasks.GreenMask) |\r
- (((Uint32 << mPixelShl[2]) >> mPixelShr[2]) & mPixelBitMasks.BlueMask)\r
- );\r
- }\r
- BltMemSrc = (VOID *) mBltLibLineBuffer;\r
- }\r
-\r
- CopyMem (BltMemDst, BltMemSrc, WidthInBytes);\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-/**\r
- Performs a UEFI Graphics Output Protocol Blt Video to Video operation\r
-\r
- @param[in] SourceX X location within video\r
- @param[in] SourceY Y location within video\r
- @param[in] DestinationX X location within video\r
- @param[in] DestinationY Y location within video\r
- @param[in] Width Width (in pixels)\r
- @param[in] Height Height\r
-\r
- @retval EFI_DEVICE_ERROR - A hardware error occured\r
- @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r
- @retval EFI_SUCCESS - The sizes were returned\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-BltLibVideoToVideo (\r
- IN UINTN SourceX,\r
- IN UINTN SourceY,\r
- IN UINTN DestinationX,\r
- IN UINTN DestinationY,\r
- IN UINTN Width,\r
- IN UINTN Height\r
- )\r
-{\r
- VOID *BltMemSrc;\r
- VOID *BltMemDst;\r
- UINTN Offset;\r
- UINTN WidthInBytes;\r
- INTN LineStride;\r
-\r
- //\r
- // Video to Video: Source is Video, destination is Video\r
- //\r
- if (SourceY + Height > mBltLibHeight) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (SourceX + Width > mBltLibWidthInPixels) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (DestinationY + Height > mBltLibHeight) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (DestinationX + Width > mBltLibWidthInPixels) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Width == 0 || Height == 0) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- WidthInBytes = Width * mBltLibBytesPerPixel;\r
-\r
- Offset = (SourceY * mBltLibWidthInPixels) + SourceX;\r
- Offset = mBltLibBytesPerPixel * Offset;\r
- BltMemSrc = (VOID *) (mBltLibFrameBuffer + Offset);\r
-\r
- Offset = (DestinationY * mBltLibWidthInPixels) + DestinationX;\r
- Offset = mBltLibBytesPerPixel * Offset;\r
- BltMemDst = (VOID *) (mBltLibFrameBuffer + Offset);\r
-\r
- LineStride = mBltLibWidthInBytes;\r
- if ((UINTN) BltMemDst > (UINTN) BltMemSrc) {\r
- LineStride = -LineStride;\r
- }\r
-\r
- while (Height > 0) {\r
- CopyMem (BltMemDst, BltMemSrc, WidthInBytes);\r
-\r
- BltMemSrc = (VOID*) ((UINT8*) BltMemSrc + LineStride);\r
- BltMemDst = (VOID*) ((UINT8*) BltMemDst + LineStride);\r
- Height--;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-/**\r
- Returns the sizes related to the video device\r
-\r
- @param[out] Width Width (in pixels)\r
- @param[out] Height Height (in pixels)\r
-\r
- @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r
- @retval EFI_SUCCESS - The sizes were returned\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-BltLibGetSizes (\r
- OUT UINTN *Width, OPTIONAL\r
- OUT UINTN *Height OPTIONAL\r
- )\r
-{\r
- if (Width != NULL) {\r
- *Width = mBltLibWidthInPixels;\r
- }\r
- if (Height != NULL) {\r
- *Height = mBltLibHeight;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
projects / mirror_edk2.git / blobdiff