#include <Uefi/UefiBaseType.h>
#include <Protocol/GraphicsOutput.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/OcBlitLib.h>
#include "BlitInternal.h"

Functions
STATIC VOID	BlitLibConfigurePixelFormat (IN CONST EFI_PIXEL_BITMASK BitMask, OUT UINT32 BytesPerPixel, OUT INT8 PixelShl, OUT INT8 PixelShr)

STATIC EFI_STATUS	BlitLibVideoFill (IN OC_BLIT_CONFIGURE Configure, IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Color, IN UINTN DestinationX, IN UINTN DestinationY, IN UINTN Width, IN UINTN Height)

STATIC RETURN_STATUS	BlitLibVideoToBuffer (IN OC_BLIT_CONFIGURE Configure, OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL BltBuffer, IN UINTN SourceX, IN UINTN SourceY, IN UINTN DestinationX, IN UINTN DestinationY, IN UINTN Width, IN UINTN Height, IN UINTN Delta)

STATIC RETURN_STATUS	BlitLibBufferToVideo (IN OC_BLIT_CONFIGURE Configure, IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL BltBuffer, IN UINTN SourceX, IN UINTN SourceY, IN UINTN DestinationX, IN UINTN DestinationY, IN UINTN Width, IN UINTN Height, IN UINTN Delta)

STATIC RETURN_STATUS	BlitLibVideoToVideo (IN OC_BLIT_CONFIGURE *Configure, IN UINTN SourceX, IN UINTN SourceY, IN UINTN DestinationX, IN UINTN DestinationY, IN UINTN Width, IN UINTN Height)

RETURN_STATUS EFIAPI	OcBlitConfigure (IN VOID FrameBuffer, IN EFI_GRAPHICS_OUTPUT_MODE_INFORMATION FrameBufferInfo, IN UINT32 Rotation, IN OUT OC_BLIT_CONFIGURE Configure, IN OUT UINTN ConfigureSize)

RETURN_STATUS EFIAPI	OcBlitRender (IN OC_BLIT_CONFIGURE Configure, 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)

Variables
STATIC CONST EFI_PIXEL_BITMASK	mRgbPixelMasks

STATIC CONST EFI_PIXEL_BITMASK	mBgrPixelMasks

Detailed Description

OcBlitLib - Library to perform blt operations on a frame buffer.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file OcBlitLib.c.

Function Documentation

◆ BlitLibBufferToVideo()

STATIC RETURN_STATUS BlitLibBufferToVideo	(	IN OC_BLIT_CONFIGURE *	Configure,
		IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *	BltBuffer,
		IN UINTN	SourceX,
		IN UINTN	SourceY,
		IN UINTN	DestinationX,
		IN UINTN	DestinationY,
		IN UINTN	Width,
		IN UINTN	Height,
		IN UINTN	Delta )

Performs a UEFI Graphics Output Protocol Blt Buffer to Video operation with extended parameters.

Parameters

[in]	Configure	Pointer to a configuration which was successfully created by FrameBufferBltConfigure ().
[in]	BltBuffer	Output buffer for pixel color data.
[in]	SourceX	X location within BltBuffer.
[in]	SourceY	Y location within BltBuffer.
[in]	DestinationX	X location within video.
[in]	DestinationY	Y location within video.
[in]	Width	Width (in pixels).
[in]	Height	Height.
[in]	Delta	Number of bytes in a row of BltBuffer.

Return values

RETURN_INVALID_PARAMETER	Invalid parameter were passed in.
RETURN_SUCCESS	The Blt operation was performed successfully.

Definition at line 382 of file OcBlitLib.c.

◆ BlitLibConfigurePixelFormat()

STATIC VOID BlitLibConfigurePixelFormat	(	IN CONST EFI_PIXEL_BITMASK *	BitMask,
		OUT UINT32 *	BytesPerPixel,
		OUT INT8 *	PixelShl,
		OUT INT8 *	PixelShr )

Initialize the bit mask in frame buffer configure.

Parameters

BitMask	The bit mask of pixel.
BytesPerPixel	Size in bytes of pixel.
PixelShl	Left shift array.
PixelShr	Right shift array.

Definition at line 38 of file OcBlitLib.c.

◆ BlitLibVideoFill()

STATIC EFI_STATUS BlitLibVideoFill	(	IN OC_BLIT_CONFIGURE *	Configure,
		IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *	Color,
		IN UINTN	DestinationX,
		IN UINTN	DestinationY,
		IN UINTN	Width,
		IN UINTN	Height )

Performs a UEFI Graphics Output Protocol Blt Video Fill.

Parameters

[in]	Configure	Pointer to a configuration which was successfully created by FrameBufferBltConfigure ().
[in]	Color	Color to fill the region with.
[in]	DestinationX	X location to start fill operation.
[in]	DestinationY	Y location to start fill operation.
[in]	Width	Width (in pixels) to fill.
[in]	Height	Height to fill.

Return values

RETURN_INVALID_PARAMETER	Invalid parameter was passed in.
RETURN_SUCCESS	The video was filled successfully.

Definition at line 100 of file OcBlitLib.c.

◆ BlitLibVideoToBuffer()

STATIC RETURN_STATUS BlitLibVideoToBuffer	(	IN OC_BLIT_CONFIGURE *	Configure,
		OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *	BltBuffer,
		IN UINTN	SourceX,
		IN UINTN	SourceY,
		IN UINTN	DestinationX,
		IN UINTN	DestinationY,
		IN UINTN	Width,
		IN UINTN	Height,
		IN UINTN	Delta )

Performs a UEFI Graphics Output Protocol Blt Video to Buffer operation with extended parameters.

Parameters

[in]	Configure	Pointer to a configuration which was successfully created by FrameBufferBltConfigure ().
[out]	BltBuffer	Output buffer for pixel color data.
[in]	SourceX	X location within video.
[in]	SourceY	Y location within video.
[in]	DestinationX	X location within BltBuffer.
[in]	DestinationY	Y location within BltBuffer.
[in]	Width	Width (in pixels).
[in]	Height	Height.
[in]	Delta	Number of bytes in a row of BltBuffer.

Return values

RETURN_INVALID_PARAMETER	Invalid parameter were passed in.
RETURN_SUCCESS	The Blt operation was performed successfully.

Definition at line 267 of file OcBlitLib.c.

◆ BlitLibVideoToVideo()

STATIC RETURN_STATUS BlitLibVideoToVideo	(	IN OC_BLIT_CONFIGURE *	Configure,
		IN UINTN	SourceX,
		IN UINTN	SourceY,
		IN UINTN	DestinationX,
		IN UINTN	DestinationY,
		IN UINTN	Width,
		IN UINTN	Height )

Performs a UEFI Graphics Output Protocol Blt Video to Video operation

Parameters

[in]	Configure	Pointer to a configuration which was successfully created by FrameBufferBltConfigure ().
[in]	SourceX	X location within video.
[in]	SourceY	Y location within video.
[in]	DestinationX	X location within video.
[in]	DestinationY	Y location within video.
[in]	Width	Width (in pixels).
[in]	Height	Height.

Return values

RETURN_INVALID_PARAMETER	Invalid parameter were passed in.
RETURN_SUCCESS	The Blt operation was performed successfully.

Definition at line 494 of file OcBlitLib.c.

◆ OcBlitConfigure()

RETURN_STATUS EFIAPI OcBlitConfigure	(	IN VOID *	FrameBuffer,
		IN EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *	FrameBufferInfo,
		IN UINT32	Rotation,
		IN OUT OC_BLIT_CONFIGURE *	Configure,
		IN OUT UINTN *	ConfigureSize )

Create the configuration for a video frame buffer.

The configuration is returned in the caller provided buffer.

Parameters

[in]	FrameBuffer	Pointer to the start of the frame buffer.
[in]	FrameBufferInfo	Describes the frame buffer characteristics. The information in FramebufferInfo must refer to unmodified (not rotated) framebuffer.
[in]	Rotation	Rotation scheme in degrees (must be one of 0, 90, 180, 270).
[in,out]	Configure	The created configuration information.
[in,out]	ConfigureSize	Size of the configuration information.

Return values

RETURN_SUCCESS	The configuration was successful created.
RETURN_BUFFER_TOO_SMALL	The Configure is to too small. The required size is returned in ConfigureSize.
RETURN_UNSUPPORTED	The requested mode is not supported by this implementaion.

Definition at line 602 of file OcBlitLib.c.

◆ OcBlitRender()

RETURN_STATUS EFIAPI OcBlitRender	(	IN OC_BLIT_CONFIGURE *	Configure,
		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 )

Performs a UEFI Graphics Output Protocol Blt operation.

Parameters

[in]	Configure	Pointer to a configuration which was successfully created by FrameBufferBltConfigure ().
[in,out]	BltBuffer	The data to transfer to screen.
[in]	BltOperation	The operation to perform.
[in]	SourceX	The X coordinate of the source for BltOperation.
[in]	SourceY	The Y coordinate of the source for BltOperation.
[in]	DestinationX	The X coordinate of the destination for BltOperation.
[in]	DestinationY	The Y coordinate of the destination for BltOperation.
[in]	Width	The width of a rectangle in the blt rectangle in pixels.
[in]	Height	The height of a rectangle in the blt rectangle in pixels.
[in]	Delta	Not used for EfiBltVideoFill and EfiBltVideoToVideo operation. If a Delta of 0 is used, the entire BltBuffer will be operated on. If a subrectangle of the BltBuffer is used, then Delta represents the number of bytes in a row of the BltBuffer.

Return values

RETURN_INVALID_PARAMETER	Invalid parameter were passed in.
RETURN_SUCCESS	The Blt operation was performed successfully.

Definition at line 688 of file OcBlitLib.c.

Variable Documentation

◆ mBgrPixelMasks

STATIC CONST EFI_PIXEL_BITMASK mBgrPixelMasks

Initial value:

= {
  0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000
}

Definition at line 24 of file OcBlitLib.c.

◆ mRgbPixelMasks

STATIC CONST EFI_PIXEL_BITMASK mRgbPixelMasks

Initial value:

= {
  0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000
}

Definition at line 20 of file OcBlitLib.c.

Functions

Variables

Detailed Description

Function Documentation

◆ BlitLibBufferToVideo()

◆ BlitLibConfigurePixelFormat()

◆ BlitLibVideoFill()

◆ BlitLibVideoToBuffer()

◆ BlitLibVideoToVideo()

◆ OcBlitConfigure()

◆ OcBlitRender()

Variable Documentation

◆ mBgrPixelMasks

◆ mRgbPixelMasks