/** @file
This protocol provides generic image decoder interfaces to various image formats.
(C) Copyright 2016 Hewlett Packard Enterprise Development LP
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that 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 __EFI_IMAGE_DECODER_PROTOCOL_H__
#define __EFI_IMAGE_DECODER_PROTOCOL_H__
#include
#define EFI_HII_IMAGE_DECODER_PROTOCOL_GUID \
{ 0x2f707ebb, 0x4a1a, 0x11d4, {0x9a,0x38,0x00,0x90,0x27,0x3f,0xc1,0x4d}}
#define EFI_HII_IMAGE_DECODER_NAME_JPEG_GUID \
{0xefefd093, 0xd9b, 0x46eb, { 0xa8, 0x56, 0x48, 0x35, 0x7, 0x0, 0xc9, 0x8 }}
#define EFI_HII_IMAGE_DECODER_NAME_PNG_GUID \
{0xaf060190, 0x5e3a, 0x4025, { 0xaf, 0xbd, 0xe1, 0xf9, 0x5, 0xbf, 0xaa, 0x4c }}
typedef struct _EFI_HII_IMAGE_DECODER_PROTOCOL EFI_HII_IMAGE_DECODER_PROTOCOL;
typedef enum {
EFI_HII_IMAGE_DECODER_COLOR_TYPE_RGB = 0x0,
EFI_HII_IMAGE_DECODER_COLOR_TYPE_RGBA = 0x1,
EFI_HII_IMAGE_DECODER_COLOR_TYPE_CMYK = 0x2,
EFI_HII_IMAGE_DECODER_COLOR_TYPE_UNKNOWN = 0xFF
} EFI_HII_IMAGE_DECODER_COLOR_TYPE;
//
// EFI_HII_IMAGE_DECODER_IMAGE_INFO_HEADER
//
// DecoderName Name of the decoder
// ImageInfoSize The size of entire image information structure in bytes
// ImageWidth The image width
// ImageHeight The image height
// ColorType The color type, see EFI_HII_IMAGE_DECODER_COLOR_TYPE.
// ColorDepthInBits The color depth in bits
//
typedef struct _EFI_HII_IMAGE_DECODER_IMAGE_INFO_HEADER {
EFI_GUID DecoderName;
UINT16 ImageInfoSize;
UINT16 ImageWidth;
UINT16 ImageHeight;
EFI_HII_IMAGE_DECODER_COLOR_TYPE ColorType;
UINT8 ColorDepthInBits;
} EFI_HII_IMAGE_DECODER_IMAGE_INFO_HEADER;
//
// EFI_HII_IMAGE_DECODER_JPEG_INFO
// Header The common header
// ScanType The scan type of JPEG image
// Reserved Reserved
//
typedef struct _EFI_HII_IMAGE_DECODER_JPEG_INFO {
EFI_HII_IMAGE_DECODER_IMAGE_INFO_HEADER Header;
#define EFI_IMAGE_JPEG_SCANTYPE_PROGREESSIVE 0x01
#define EFI_IMAGE_JPEG_SCANTYPE_INTERLACED 0x02
UINT16 ScanType;
UINT64 Reserved;
} EFI_HII_IMAGE_DECODER_JPEG_INFO;
//
// EFI_HII_IMAGE_DECODER_PNG_INFO
// Header The common header
// Channels Number of channels in the PNG image
// Reserved Reserved
//
typedef struct _EFI_HII_IMAGE_DECODER_PNG_INFO {
EFI_HII_IMAGE_DECODER_IMAGE_INFO_HEADER Header;
UINT16 Channels;
UINT64 Reserved;
} EFI_HII_IMAGE_DECODER_PNG_INFO;
/**
There could be more than one EFI_HII_IMAGE_DECODER_PROTOCOL instances installed
in the system for different image formats. This function returns the decoder
name which callers can use to find the proper image decoder for the image. It
is possible to support multiple image formats in one EFI_HII_IMAGE_DECODER_PROTOCOL.
The capability of the supported image formats is returned in DecoderName and
NumberOfDecoderName.
@param This EFI_HII_IMAGE_DECODER_PROTOCOL instance.
@param DecoderName Pointer to a dimension to retrieve the decoder
names in EFI_GUID format. The number of the
decoder names is returned in NumberOfDecoderName.
@param NumberofDecoderName Pointer to retrieve the number of decoders which
supported by this decoder driver.
@retval EFI_SUCCESS Get decoder name success.
@retval EFI_UNSUPPORTED Get decoder name fail.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_IMAGE_DECODER_GET_DECODER_NAME)(
IN EFI_HII_IMAGE_DECODER_PROTOCOL *This,
IN OUT EFI_GUID **DecoderName,
IN OUT UINT16 *NumberofDecoderName
);
/**
This function returns the image information of the given image raw data. This
function first checks whether the image raw data is supported by this decoder
or not. This function may go through the first few bytes in the image raw data
for the specific data structure or the image signature. If the image is not supported
by this image decoder, this function returns EFI_UNSUPPORTED to the caller.
Otherwise, this function returns the proper image information to the caller.
It is the caller?s responsibility to free the ImageInfo.
@param This EFI_HII_IMAGE_DECODER_PROTOCOL instance.
@param Image Pointer to the image raw data.
@param SizeOfImage Size of the entire image raw data.
@param ImageInfo Pointer to recieve EFI_HII_IMAGE_DECODER_IMAGE_INFO_HEADER.
@retval EFI_SUCCESS Get image info success.
@retval EFI_UNSUPPORTED Unsupported format of image.
@retval EFI_INVALID_PARAMETER Incorrect parameter.
@retval EFI_BAD_BUFFER_SIZE Not enough memory.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_IMAGE_DECODER_GET_IMAGE_INFO)(
IN EFI_HII_IMAGE_DECODER_PROTOCOL *This,
IN VOID *Image,
IN UINTN SizeOfImage,
IN OUT EFI_HII_IMAGE_DECODER_IMAGE_INFO_HEADER **ImageInfo
);
/**
This function decodes the image which the image type of this image is supported
by this EFI_HII_IMAGE_DECODER_PROTOCOL. If **Bitmap is not NULL, the caller intends
to put the image in the given image buffer. That allows the caller to put an
image overlap on the original image. The transparency is handled by the image
decoder because the transparency capability depends on the image format. Callers
can set Transparent to FALSE to force disabling the transparency process on the
image. Forcing Transparent to FALSE may also improve the performance of the image
decoding because the image decoder can skip the transparency processing. If **Bitmap
is NULL, the image decoder allocates the memory buffer for the EFI_IMAGE_OUTPUT
and decodes the image to the image buffer. It is the caller?s responsibility to
free the memory for EFI_IMAGE_OUTPUT. Image decoder doesn?t have to handle the
transparency in this case because there is no background image given by the caller.
The background color in this case is all black (#00000000).
@param This EFI_HII_IMAGE_DECODER_PROTOCOL instance.
@param Image Pointer to the image raw data.
@param ImageRawDataSize Size of the entire image raw data.
@param Blt EFI_IMAGE_OUTPUT to receive the image or overlap
the image on the original buffer.
@param Transparent BOOLEAN value indicates whether the image decoder
has to handle the transparent image or not.
@retval EFI_SUCCESS Image decode success.
@retval EFI_UNSUPPORTED Unsupported format of image.
@retval EFI_INVALID_PARAMETER Incorrect parameter.
@retval EFI_BAD_BUFFER_SIZE Not enough memory.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_IMAGE_DECODER_DECODE)(
IN EFI_HII_IMAGE_DECODER_PROTOCOL *This,
IN VOID *Image,
IN UINTN ImageRawDataSize,
IN OUT EFI_IMAGE_OUTPUT **BitMap OPTIONAL,
IN BOOLEAN Transparent
);
struct _EFI_HII_IMAGE_DECODER_PROTOCOL {
EFI_HII_IMAGE_DECODER_GET_DECODER_NAME GetImageDecoderName;
EFI_HII_IMAGE_DECODER_GET_IMAGE_INFO GetImageInfo;
EFI_HII_IMAGE_DECODER_DECODE DecodeImage;
};
extern EFI_GUID gEfiHiiImageDecoderProtocolGuid;
extern EFI_GUID gEfiHiiImageDecoderNameJpegGuid;
extern EFI_GUID gEfiHiiImageDecoderNamePngGuid;
#endif