/** @file
The file provides services to access to images in the images database.
Copyright (c) 2006 - 2008, Intel Corporation. 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.
**/
#ifndef __HII_IMAGE_H__
#define __HII_IMAGE_H__
#define EFI_HII_IMAGE_PROTOCOL_GUID \
{ 0x31a6406a, 0x6bdf, 0x4e46, { 0xb2, 0xa2, 0xeb, 0xaa, 0x89, 0xc4, 0x9, 0x20 } }
typedef struct _EFI_HII_IMAGE_PROTOCOL EFI_HII_IMAGE_PROTOCOL;
///
/// Flags in EFI_IMAGE_INPUT
///
#define EFI_IMAGE_TRANSPARENT 0x00000001
/**
Definition of EFI_IMAGE_INPUT.
@param Flags Describe image characteristics. If
EFI_IMAGE_TRANSPARENT is set, then the image was
designed for transparent display.
@param Width Image width, in pixels.
@param Height Image height, in pixels.
@param Bitmap A pointer to the actual bitmap, organized left-to-right,
top-to-bottom. The size of the bitmap is
Width*Height*sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL).
**/
typedef struct _EFI_IMAGE_INPUT {
UINT32 Flags;
UINT16 Width;
UINT16 Height;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Bitmap;
} EFI_IMAGE_INPUT;
/**
This function adds the image Image to the group of images
owned by PackageList, and returns a new image identifier
(ImageId).
@param This A pointer to the EFI_HII_IMAGE_PROTOCOL instance.
@param PackageList Handle of the package list where this image will be added.
@param ImageId On return, contains the new image id, which is
unique within PackageList.
@param Image Points to the image.
@retval EFI_SUCCESS The new image was added
successfully
@retval EFI_OUT_OF_RESOURCES Could not add the image.
@retval EFI_INVALID_PARAMETER Image is NULL or ImageId is
NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_NEW_IMAGE)(
IN CONST EFI_HII_IMAGE_PROTOCOL *This,
IN EFI_HII_HANDLE PackageList,
OUT EFI_IMAGE_ID *ImageId,
IN CONST EFI_IMAGE_INPUT *Image
);
/**
This function retrieves the image specified by ImageId which
is associated with the specified PackageList and copies it
into the buffer specified by Image. If the image specified by
ImageId is not present in the specified PackageList, then
EFI_NOT_FOUND is returned. If the buffer specified by
ImageSize is too small to hold the image, then
EFI_BUFFER_TOO_SMALL will be returned. ImageSize will be
updated to the size of buffer actually required to hold the
image.
@param This A pointer to the EFI_HII_IMAGE_PROTOCOL instance.
@param PackageList The package list in the HII database to
search for the specified image.
@param ImageId The image's id, which is unique within
PackageList.
@param Image Points to the new image.
@retval EFI_SUCCESS The image was returned successfully.
@retval EFI_NOT_FOUND The image specified by ImageId is not
available. Or The specified PackageList is not in the database.
@retval EFI_INVALID_PARAMETER The Image or Langugae was NULL.
@retval EFI_OUT_OF_RESOURCES The bitmap could not be retrieved because there was not
enough memory.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_GET_IMAGE)(
IN CONST EFI_HII_IMAGE_PROTOCOL *This,
IN EFI_HII_HANDLE PackageList,
IN EFI_IMAGE_ID ImageId,
OUT EFI_IMAGE_INPUT *Image
);
/**
This function updates the image specified by ImageId in the
specified PackageListHandle to the image specified by Image.
@param This A pointer to the EFI_HII_IMAGE_PROTOCOL instance.
@param PackageList The package list containing the images.
@param ImageId The image id, which is unique within PackageList.
@param Image Points to the image.
@retval EFI_SUCCESS The image was successfully updated.
@retval EFI_NOT_FOUND The image specified by ImageId is not in the database.
The specified PackageList is not in the database.
@retval EFI_INVALID_PARAMETER The Image or Language was NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_SET_IMAGE)(
IN CONST EFI_HII_IMAGE_PROTOCOL *This,
IN EFI_HII_HANDLE PackageList,
IN EFI_IMAGE_ID ImageId,
IN CONST EFI_IMAGE_INPUT *Image
);
///
/// EFI_HII_DRAW_FLAGS describes how the image is to be drawn.
/// These flags are defined as EFI_HII_DRAW_FLAG_***
///
typedef UINT32 EFI_HII_DRAW_FLAGS;
#define EFI_HII_DRAW_FLAG_CLIP 0x00000001
#define EFI_HII_DRAW_FLAG_TRANSPARENT 0x00000030
#define EFI_HII_DRAW_FLAG_DEFAULT 0x00000000
#define EFI_HII_DRAW_FLAG_FORCE_TRANS 0x00000010
#define EFI_HII_DRAW_FLAG_FORCE_OPAQUE 0x00000020
#define EFI_HII_DIRECT_TO_SCREEN 0x00000080
/**
Definition of EFI_IMAGE_OUTPUT.
@param Width Width of the output image.
@param Height Height of the output image.
@param Bitmap Points to the output bitmap.
@param Screen Points to the EFI_GRAPHICS_OUTPUT_PROTOCOL which
describes the screen on which to draw the
specified image.
**/
typedef struct _EFI_IMAGE_OUTPUT {
UINT16 Width;
UINT16 Height;
union {
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Bitmap;
EFI_GRAPHICS_OUTPUT_PROTOCOL *Screen;
} Image;
} EFI_IMAGE_OUTPUT;
/**
This function renders an image to a bitmap or the screen using
the specified color and options. It draws the image on an
existing bitmap, allocates a new bitmap or uses the screen. The
images can be clipped. If EFI_HII_DRAW_FLAG_CLIP is set, then
all pixels drawn outside the bounding box specified by Width and
Height are ignored. If EFI_HII_DRAW_FLAG_TRANSPARENT is set,
then all 'off' pixels in the images drawn will use the
pixel value from Blt. This flag cannot be used if Blt is NULL
upon entry. If EFI_HII_DIRECT_TO_SCREEN is set, then the image
will be written directly to the output device specified by
Screen. Otherwise the image will be rendered to the bitmap
specified by Bitmap.
@param This A pointer to the EFI_HII_IMAGE_PROTOCOL instance.
@param Flags Describes how the image is to be drawn.
EFI_HII_DRAW_FLAGS is defined in Related
Definitions, below.
@param Image Points to the image to be displayed.
@param Blt If this points to a non-NULL on entry, this points
to the image, which is Width pixels wide and
Height pixels high. The image will be drawn onto
this image and EFI_HII_DRAW_FLAG_CLIP is implied.
If this points to a NULL on entry, then a buffer
will be allocated to hold the generated image and
the pointer updated on exit. It is the caller's
responsibility to free this buffer.
@param BltX, BltY Specifies the offset from the left and top
edge of the image of the first pixel in
the image.
@retval EFI_SUCCESS The image was successfully updated.
@retval EFI_OUT_OF_RESOURCES Unable to allocate an output
buffer for RowInfoArray or Blt.
@retval EFI_INVALID_PARAMETER The Image or Blt or Height or
Width was NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_DRAW_IMAGE)(
IN CONST EFI_HII_IMAGE_PROTOCOL *This,
IN EFI_HII_DRAW_FLAGS Flags,
IN CONST EFI_IMAGE_INPUT *Image,
IN OUT EFI_IMAGE_OUTPUT **Blt,
IN UINTN BltX,
IN UINTN BltY
);
/**
This function renders an image as a bitmap or to the screen and
can clip the image. The bitmap is either supplied by the caller
or else is allocated by the function. The images can be drawn
transparently or opaquely. If EFI_HII_DRAW_FLAG_CLIP is set,
then all pixels drawn outside the bounding box specified by
Width and Height are ignored. If EFI_HII_DRAW_FLAG_TRANSPARENT
is set, then all "off" pixels in the character's glyph will
use the pixel value from Blt. This flag cannot be used if Blt
is NULL upon entry. If EFI_HII_DIRECT_TO_SCREEN is set, then
the image will be written directly to the output device
specified by Screen. Otherwise the image will be rendered to
the bitmap specified by Bitmap.
This function renders an image to a bitmap or the screen using
the specified color and options. It draws the image on an
existing bitmap, allocates a new bitmap or uses the screen. The
images can be clipped. If EFI_HII_DRAW_FLAG_CLIP is set, then
all pixels drawn outside the bounding box specified by Width and
Height are ignored. The EFI_HII_DRAW_FLAG_TRANSPARENT flag
determines whether the image will be drawn transparent or
opaque. If EFI_HII_DRAW_FLAG_FORCE_TRANS is set, then the image
will be drawn so that all 'off' pixels in the image will
be drawn using the pixel value from Blt and all other pixels
will be copied. If EFI_HII_DRAW_FLAG_FORCE_OPAQUE is set, then
the image's pixels will be copied directly to the
destination. If EFI_HII_DRAW_FLAG_DEFAULT is set, then the image
will be drawn transparently or opaque, depending on the
image's transparency setting (see EFI_IMAGE_TRANSPARENT).
Images cannot be drawn transparently if Blt is NULL. If
EFI_HII_DIRECT_TO_SCREEN is set, then the image will be written
directly to the output device specified by Screen. Otherwise the
image will be rendered to the bitmap specified by Bitmap.
@param This A pointer to the EFI_HII_IMAGE_PROTOCOL instance.
@param Flags Describes how the image is to be drawn.
@param PackageList The package list in the HII database to
search for the specified image.
@param ImageId The image's id, which is unique within PackageList.
@param Blt If this points to a non-NULL on entry, this points
to the image, which is Width pixels wide and
Height pixels high. The image will be drawn onto
this image and EFI_HII_DRAW_FLAG_CLIP is implied.
If this points to a NULL on entry, then a buffer
will be allocated to hold the generated image and
the pointer updated on exit. It is the caller's
responsibility to free this buffer.
@param BltX, BltY Specifies the offset from the left and top
edge of the output image of the first
pixel in the image.
@retval EFI_SUCCESS The image was successfully updated.
@retval EFI_OUT_OF_RESOURCES Unable to allocate an output
buffer for RowInfoArray or Blt.
@retval EFI_NOT_FOUND The image specified by ImageId is not in the database.
Or The specified PackageList is not in the database.
@retval EFI_INVALID_PARAMETER The Blt was NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_DRAW_IMAGE_ID)(
IN CONST EFI_HII_IMAGE_PROTOCOL *This,
IN EFI_HII_DRAW_FLAGS Flags,
IN EFI_HII_HANDLE PackageList,
IN EFI_IMAGE_ID ImageId,
IN OUT EFI_IMAGE_OUTPUT **Blt,
IN UINTN BltX,
IN UINTN BltY
);
///
/// Services to access to images in the images database.
///
struct _EFI_HII_IMAGE_PROTOCOL {
EFI_HII_NEW_IMAGE NewImage;
EFI_HII_GET_IMAGE GetImage;
EFI_HII_SET_IMAGE SetImage;
EFI_HII_DRAW_IMAGE DrawImage;
EFI_HII_DRAW_IMAGE_ID DrawImageId;
};
extern EFI_GUID gEfiHiiImageProtocolGuid;
#endif