120 lines
3.8 KiB
C
120 lines
3.8 KiB
C
/** @file
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;******************************************************************************
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;* Copyright (c) 2020, Insyde Software Corp. All Rights Reserved.
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;*
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;* You may not reproduce, distribute, publish, display, perform, modify, adapt,
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;* transmit, broadcast, present, recite, release, license or otherwise exploit
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;* any part of this publication in any form, by any means, without the prior
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;* written permission of Insyde Software Corporation.
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;*
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;******************************************************************************
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*/
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/*++
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Copyright (c) 1999 - 2002 Intel Corporation. All rights reserved
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This software and associated documentation (if any) is furnished
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under a license and may only be used or copied in accordance
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with the terms of the license. Except as permitted by such
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license, no part of this software or documentation may be
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reproduced, stored in a retrieval system, or transmitted in any
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form or by any means without the express written consent of
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Intel Corporation.
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Module Name:
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JfifDecode.h
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Abstract:
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This code decode the JFIF image and get the useful information.
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--*/
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#ifndef _JFIF_DECODE_H_
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#define _JFIF_DECODE_H_
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#include "H2OImageDecoderLibCommon.h"
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typedef struct _EFI_JPEG_SAMPLE_DATA {
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UINT8 Hi;
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UINT8 Vi;
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UINT8 Blocks;
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UINT8 QuanTable;
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} EFI_JPEG_SAMPLE_DATA;
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typedef struct _EFI_JPEG_SOF0_DATA {
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UINT8 *Ptr;
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UINT8 Components;
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UINT16 Width;
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UINT16 Height;
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EFI_JPEG_SAMPLE_DATA Samples[3];
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} EFI_JPEG_SOF0_DATA;
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typedef struct _EFI_JPEG_HUFFMAN_TABLE {
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UINT8 *Ptr;
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UINT8 Number; //Huffman table number, [0,3]
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UINT8 Type; //Table class: 0 = DC table, 1 = AC table
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UINT16 MinCode[17]; //Table with minimum value of Huffman code for each layer of the Huffman tree
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UINT16 MaxCode[17]; //Table with maximum value of Huffman code for each layer of the Huffman tree (-1, if none)
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UINT8 Codes[17]; //Table with the number of codes in each layer
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UINT8 FirstCode[17]; //Table with index of 1st symbol of each layer in Huffmanval[]
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UINT8 HuffmanVal[256]; //the length of coding value, or the layers of the Huffman tree
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} EFI_JPEG_HUFFMAN_TABLE;
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typedef struct EFI_JPEG_DECODER_BLOCK_DATA {
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UINT8 DcAcHTIndex;
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UINT8 QTIndex;
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UINT8 HiViIndex;
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INT16 *DcValPtr;
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} EFI_JPEG_DECODER_BLOCK_DATA;
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typedef struct EFI_JPEG_DECODER_DATA {
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UINT8 *ImagePtr;
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UINT8 CurByte;
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UINT8 BitPos;
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UINT8 Blocks;
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INT16 DcVal[3];
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EFI_JPEG_DECODER_BLOCK_DATA BlocksInMcu[10];
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} EFI_JPEG_DECODER_DATA;
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typedef struct EFI_JPEG_JFIF_DATA {
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UINT8 *SoiPtr;
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UINT8 *App0Ptr;
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UINT8 *SosPtr;
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UINT8 *ComPtr;
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UINT8 *DnlPtr;
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UINT16 McuRestart;
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UINT8 *DqtPtr[4];
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UINT8 HTMaxIndex;
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UINT8 QTMaxIndex;
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EFI_JPEG_SOF0_DATA Sof0Data;
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EFI_JPEG_HUFFMAN_TABLE HuffTable[8];
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} EFI_JPEG_JFIF_DATA;
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EFI_JPEG_DECODER_STATUS
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GetSof0Data (
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IN UINT8 *ImagePtr
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);
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EFI_JPEG_DECODER_STATUS
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GetHuffmanTable (
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IN UINT8 *ImagePtr
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);
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EFI_JPEG_DECODER_STATUS
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InitJfifData (
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IN UINT8 *ImageData,
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IN UINTN ImageDataSize
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);
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VOID
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InitDecoderData (
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);
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extern EFI_JPEG_JFIF_DATA mJfifData;
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extern EFI_JPEG_DECODER_DATA mDecoderData;
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#endif
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