SmartAudio/lichee/brandy/u-boot-2011.09/sprite/firmware/imgdecode.c

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2018-07-13 01:31:50 +00:00
/*
* (C) Copyright 2007-2013
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
* Jerry Wang <wangflord@allwinnertech.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <common.h>
#include <malloc.h>
#include "imgdecode.h"
#include "imagefile_new.h"
#include "../sprite_card.h"
#include "../sprite_auto_update.h"
#define HEAD_ID 0 //头加密接口索引
#define TABLE_ID 1 //表加密接口索引
#define DATA_ID 2 //数据加密接口索引
#define IF_CNT 3 //加密接口个数 现在只有头加密表加密数据加密3种
#define MAX_KEY_SIZE 32 //密码长度
#pragma pack(push, 1)
typedef struct tag_IMAGE_HANDLE
{
// HANDLE fp; //
ImageHead_t ImageHead; //img头信息
ImageItem_t *ItemTable; //item信息表
// RC_ENDECODE_IF_t rc_if_decode[IF_CNT];//解密接口
// BOOL bWithEncpy; // 是否加密
}IMAGE_HANDLE;
#define INVALID_INDEX 0xFFFFFFFF
typedef struct tag_ITEM_HANDLE{
uint index; //在ItemTable中的索引
uint reserved[3];
// long long pos;
}ITEM_HANDLE;
#define ITEM_PHOENIX_TOOLS "PXTOOLS "
uint img_file_start; //固件的起始位置
//------------------------------------------------------------------------------------------------------------
//image解析插件的接口
//------------------------------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------------------------------
//
// 函数说明
//
//
// 参数说明
//
//
// 返回值
//
//
// 其他
// 无
//
//------------------------------------------------------------------------------------------------------------
HIMAGE Img_Open (char * ImageFile)
{
IMAGE_HANDLE * pImage = NULL;
uint ItemTableSize; //固件索引表的大小
img_file_start = sprite_card_firmware_start();
if(!img_file_start)
{
printf("sunxi sprite error: unable to get firmware start position\n");
return NULL;
}
debug("img start = 0x%x\n", img_file_start);
pImage = (IMAGE_HANDLE *)malloc(sizeof(IMAGE_HANDLE));
if (NULL == pImage)
{
printf("sunxi sprite error: fail to malloc memory for img head\n");
return NULL;
}
memset(pImage, 0, sizeof(IMAGE_HANDLE));
//------------------------------------------------
//读img头
//------------------------------------------------
//debug("try to read mmc start %d\n", img_file_start);
if(!sunxi_flash_read(img_file_start, IMAGE_HEAD_SIZE/512, &pImage->ImageHead))
{
printf("sunxi sprite error: read iamge head fail\n");
goto _img_open_fail_;
}
debug("read mmc ok\n");
//------------------------------------------------
//比较magic
//------------------------------------------------
if (memcmp(pImage->ImageHead.magic, IMAGE_MAGIC, 8) != 0)
{
printf("sunxi sprite error: iamge magic is bad\n");
goto _img_open_fail_;
}
//------------------------------------------------
//为索引表开辟空间
//------------------------------------------------
ItemTableSize = pImage->ImageHead.itemcount * sizeof(ImageItem_t);
pImage->ItemTable = (ImageItem_t*)malloc(ItemTableSize);
if (NULL == pImage->ItemTable)
{
printf("sunxi sprite error: fail to malloc memory for item table\n");
goto _img_open_fail_;
}
//------------------------------------------------
//读出索引表
//------------------------------------------------
if(!sunxi_flash_read(img_file_start + (IMAGE_HEAD_SIZE/512), ItemTableSize/512, pImage->ItemTable))
{
printf("sunxi sprite error: read iamge item table fail\n");
goto _img_open_fail_;
}
return pImage;
_img_open_fail_:
if(pImage->ItemTable)
{
free(pImage->ItemTable);
}
if(pImage)
{
free(pImage);
}
return NULL;
}
HIMAGE Img_Fat_Open(char * ImageFile)
{
IMAGE_HANDLE * pImage = NULL;
uint ItemTableSize = 0;
pImage = (IMAGE_HANDLE *)malloc(sizeof(IMAGE_HANDLE));
if (NULL == pImage)
{
printf("sunxi sprite error: fail to malloc memory for img head\n");
return NULL;
}
memset(pImage, 0, sizeof(IMAGE_HANDLE));
/* read img head*/
if (fat_fs_read(ImageFile,(void *)&pImage->ImageHead, 0, IMAGE_HEAD_SIZE) <= 0)
{
printf("sunxi sprite error: read iamge head fail\n");
goto _img_fs_open_fail_;
}
/* check magic*/
if (memcmp(pImage->ImageHead.magic, IMAGE_MAGIC, 8) != 0)
{
printf("sunxi sprite error: iamge magic is bad\n");
goto _img_fs_open_fail_;
}
ItemTableSize = pImage->ImageHead.itemcount * sizeof(ImageItem_t);
pImage->ItemTable = (ImageItem_t*)malloc(ItemTableSize);
if (NULL == pImage->ItemTable)
{
printf("sunxi sprite error: fail to malloc memory for item table\n");
goto _img_fs_open_fail_;
}
/* read itemtable*/
if (fat_fs_read(ImageFile,(void *)pImage->ItemTable, IMAGE_HEAD_SIZE, ItemTableSize) <= 0)
{
printf("sunxi sprite error: read iamge item table fail\n");
goto _img_fs_open_fail_;
}
return pImage;
_img_fs_open_fail_:
if(pImage->ItemTable)
{
free(pImage->ItemTable);
}
if(pImage)
{
free(pImage);
}
return NULL;
}
//------------------------------------------------------------------------------------------------------------
//
// 函数说明
//
//
// 参数说明
//
//
// 返回值
//
//
// 其他
// 无
//
//------------------------------------------------------------------------------------------------------------
long long Img_GetSize (HIMAGE hImage)
{
IMAGE_HANDLE* pImage = (IMAGE_HANDLE *)hImage;
long long size;
if (NULL == hImage)
{
printf("sunxi sprite error : hImage is NULL\n");
return 0;
}
size = pImage->ImageHead.lenHi;
size <<= 32;
size |= pImage->ImageHead.lenLo;
return size;
}
//------------------------------------------------------------------------------------------------------------
//
// 函数说明
//
//
// 参数说明
//
//
// 返回值
//
//
// 其他
// 无
//
//------------------------------------------------------------------------------------------------------------
HIMAGEITEM Img_OpenItem (HIMAGE hImage, char * MainType, char * subType)
{
IMAGE_HANDLE* pImage = (IMAGE_HANDLE *)hImage;
ITEM_HANDLE * pItem = NULL;
uint i;
if (NULL == pImage || NULL == MainType || NULL == subType)
{
return NULL;
}
pItem = (ITEM_HANDLE *) malloc(sizeof(ITEM_HANDLE));
if (NULL == pItem)
{
printf("sunxi sprite error : cannot malloc memory for item\n");
return NULL;
}
pItem->index = INVALID_INDEX;
for (i = 0; i < pImage->ImageHead.itemcount ; i++)
{
// int nCmp = memcmp(ITEM_PHOENIX_TOOLS, MainType, MAINTYPE_LEN);
//
// if (nCmp == 0)//
// {
// if (memcmp(MainType, pImage->ItemTable[i].mainType, MAINTYPE_LEN) == 0 )
// {
// pItem->index = i;
//
// return pItem;
// }
// }
// else
// {
// nCmp = memcmp(MainType, pImage->ItemTable[i].mainType, MAINTYPE_LEN);
// if(nCmp == 0)
// {
// nCmp = memcmp(subType, pImage->ItemTable[i].subType, SUBTYPE_LEN);
// if( nCmp == 0)
// {
// pItem->index = i;
//
// return pItem;
// }
// }
// }
if(!memcmp(subType, pImage->ItemTable[i].subType, SUBTYPE_LEN))
{
pItem->index = i;
//debug("try to malloc %x\n", (uint)pItem);
return pItem;
}
}
printf("sunxi sprite error : cannot find item %s %s\n", MainType, subType);
free(pItem);
pItem = NULL;
return NULL;
}
//------------------------------------------------------------------------------------------------------------
//
// 函数说明
//
//
// 参数说明
//
//
// 返回值
//
//
// 其他
// 无
//
//------------------------------------------------------------------------------------------------------------
long long Img_GetItemSize (HIMAGE hImage, HIMAGEITEM hItem)
{
IMAGE_HANDLE* pImage = (IMAGE_HANDLE *)hImage;
ITEM_HANDLE * pItem = (ITEM_HANDLE *)hItem;
long long size;
if (NULL == pItem)
{
printf("sunxi sprite error : item is NULL\n");
return 0;
}
size = pImage->ItemTable[pItem->index].filelenHi;
size <<= 32;
size |= pImage->ItemTable[pItem->index].filelenLo;
return size;
}
//------------------------------------------------------------------------------------------------------------
//
// 函数说明
//
//
// 参数说明
//
//
// 返回值
//
//
// 其他
// 无
//
//------------------------------------------------------------------------------------------------------------
uint Img_GetItemStart (HIMAGE hImage, HIMAGEITEM hItem)
{
IMAGE_HANDLE* pImage = (IMAGE_HANDLE *)hImage;
ITEM_HANDLE * pItem = (ITEM_HANDLE *)hItem;
long long start;
long long offset;
if (NULL == pItem)
{
printf("sunxi sprite error : item is NULL\n");
return 0;
}
offset = pImage->ItemTable[pItem->index].offsetHi;
offset <<= 32;
offset |= pImage->ItemTable[pItem->index].offsetLo;
start = offset/512;
return ((uint)start + img_file_start);
}
uint Img_GetItemOffset(HIMAGE hImage, HIMAGEITEM hItem)
{
IMAGE_HANDLE* pImage = (IMAGE_HANDLE *)hImage;
ITEM_HANDLE * pItem = (ITEM_HANDLE *)hItem;
long long offset;
if (NULL == pItem)
{
printf("sunxi sprite error : item is NULL\n");
return 0;
}
offset = pImage->ItemTable[pItem->index].offsetHi;
offset <<= 32;
offset |= pImage->ItemTable[pItem->index].offsetLo;
return ((uint)offset);
}
//------------------------------------------------------------------------------------------------------------
//
// 函数说明
//
//
// 参数说明
//
//
// 返回值
// 返回实际读取数据的长度
//
// 其他
// 无
//
//------------------------------------------------------------------------------------------------------------
#if 0
uint Img_ReadItem(HIMAGE hImage, HIMAGEITEM hItem, void *buffer, uint buffer_size)
{
IMAGE_HANDLE* pImage = (IMAGE_HANDLE *)hImage;
ITEM_HANDLE * pItem = (ITEM_HANDLE *)hItem;
long long start;
long long offset;
uint file_size;
void *tmp;
if (NULL == pItem)
{
printf("sunxi sprite error : item is NULL\n");
return 0;
}
if(pImage->ItemTable[pItem->index].filelenHi)
{
printf("sunxi sprite error : the item too big\n");
return 0;
}
file_size = pImage->ItemTable[pItem->index].filelenLo;
debug("file size=%d, buffer size=%d\n", file_size, buffer_size);
if(file_size > buffer_size)
{
printf("sunxi sprite error : buffer is smaller than data size\n");
return 0;
}
if(file_size > 2 * 1024 * 1024)
{
printf("sunxi sprite error : this function cant be used to read data over 2M bytes\n");
return 0;
}
file_size = (file_size + 1023) & (~(1024 - 1));
offset = pImage->ItemTable[pItem->index].offsetHi;
offset <<= 32;
offset |= pImage->ItemTable[pItem->index].offsetLo;
start = offset/512;
debug("malloc size = %d\n", file_size);
tmp = malloc(file_size);
if(!tmp)
{
printf("sunxi sprite error : fail to get memory for temp data\n");
return 0;
}
if(!sunxi_flash_read((uint)start + img_file_start, file_size/512, tmp))
{
printf("sunxi sprite error : read item data failed\n");
free(tmp);
return 0;
}
memcpy(buffer, tmp, buffer_size);
free(tmp);
return buffer_size;
}
#else
uint Img_ReadItem(HIMAGE hImage, HIMAGEITEM hItem, void *buffer, uint buffer_size)
{
IMAGE_HANDLE* pImage = (IMAGE_HANDLE *)hImage;
ITEM_HANDLE * pItem = (ITEM_HANDLE *)hItem;
long long start;
long long offset;
uint file_size;
if (NULL == pItem)
{
printf("sunxi sprite error : item is NULL\n");
return 0;
}
if(pImage->ItemTable[pItem->index].filelenHi)
{
printf("sunxi sprite error : the item too big\n");
return 0;
}
file_size = pImage->ItemTable[pItem->index].filelenLo;
file_size = (file_size + 1023) & (~(1024 - 1));
debug("file size=%d, buffer size=%d\n", file_size, buffer_size);
if(file_size > buffer_size)
{
printf("sunxi sprite error : buffer is smaller than data size\n");
return 0;
}
offset = pImage->ItemTable[pItem->index].offsetHi;
offset <<= 32;
offset |= pImage->ItemTable[pItem->index].offsetLo;
start = offset/512;
if(!sunxi_flash_read((uint)start + img_file_start, file_size/512, buffer))
{
printf("sunxi sprite error : read item data failed\n");
return 0;
}
return file_size;
}
#endif
uint Img_Fat_ReadItem(HIMAGE hImage, HIMAGEITEM hItem, char * ImageFile, void *buffer, uint buffer_size)
{
IMAGE_HANDLE* pImage = (IMAGE_HANDLE *)hImage;
ITEM_HANDLE * pItem = (ITEM_HANDLE *)hItem;
long long offset;
uint file_size;
if (NULL == pItem)
{
printf("sunxi sprite error : item is NULL\n");
return 0;
}
if(pImage->ItemTable[pItem->index].filelenHi)
{
printf("sunxi sprite error : the item too big\n");
return 0;
}
file_size = pImage->ItemTable[pItem->index].filelenLo;
file_size = (file_size + 1023) & (~(1024 - 1));
debug("file size=%d, buffer size=%d\n", file_size, buffer_size);
if(file_size > buffer_size)
{
printf("sunxi sprite error : buffer is smaller than data size\n");
return 0;
}
offset = pImage->ItemTable[pItem->index].offsetHi;
offset <<= 32;
offset |= pImage->ItemTable[pItem->index].offsetLo;
if (fat_fs_read(ImageFile,buffer, offset, file_size) <= 0)
{
printf("sunxi sprite error : read item data failed\n");
return 0;
}
return file_size;
}
//------------------------------------------------------------------------------------------------------------
//
// 函数说明
//
//
// 参数说明
//
//
// 返回值
// 返回实际读取数据的长度
//
// 其他
// 无
//
//------------------------------------------------------------------------------------------------------------
//static __int64 __Img_ReadItemData(HIMAGE hImage, HIMAGEITEM hItem, void * buffer, __int64 Length);
//
//// 根据分组进行加速处理的版本 scott 2009-06-22 10:37:17
////////////////////////////////////////////////////////////////////////////
////每次读取的大小扩展到10M
//
//__int64 Img_ReadItemData(HIMAGE hImage, HIMAGEITEM hItem, void * buffer, __int64 Length)
//{
// __int64 readlen = 0;
// __int64 nRet = 0;
// IMAGE_HANDLE* pImage = (IMAGE_HANDLE *)hImage;
// ITEM_HANDLE * pItem = (ITEM_HANDLE *)hItem;
// DWORD dwLen;
// //u8 buffer_encode[SIZE_32K];
// u8* buffer_encode = (u8*)malloc(SIZE_10M);
// __int64 this_read;
// __int64 pos = 0;
// pEnDecode pfDecode = pImage->rc_if_decode[DATA_ID].EnDecode;
//
// //为了速度不进行参数的检测工作 scott 2009-06-22
// //Msg("Img_ReadItemData:Length=%x datalen=%x pos=%x",
// // Length, pImage->ItemTable[pItem->index].datalen, pItem->pos); //debug
//
// __int64 nLenTmp = Get64bitLen(pImage->ItemTable[pItem->index].filelenLo, pImage->ItemTable[pItem->index].filelenHi);
// __int64 nFileLen = nLenTmp;
// if (pItem->pos >= nLenTmp) //filelen <= datalen
// {
// Err("Img_ReadItemData", __FILE__, __LINE__,
// "pos(%x) >= pItem->filelen(%x)",nLenTmp);
// goto readEnd;
// }
// //------------------------------------------------
// //约束数据不会超出加密数据的范围
// //------------------------------------------------
// nLenTmp = Get64bitLen(pImage->ItemTable[pItem->index].datalenLo, pImage->ItemTable[pItem->index].datalenHi);
// Length = min(Length, nLenTmp - pItem->pos);
// //Msg("Length_min=%x", Length);
// //------------------------------------------------
// //加密后的数据以16byte进行分组需要处理跨边界的情况
// //------------------------------------------------
// if ((pItem->pos % ENCODE_LEN) == 0) //pos正好是分组的边界的情况
// {
// nLenTmp = Get64bitLen(pImage->ItemTable[pItem->index].offsetLo , pImage->ItemTable[pItem->index].offsetHi);
// pos = nLenTmp + pItem->pos;
// //fseek(pImage->fp, pos, SEEK_SET);
// FsSeek(pImage->fp, pos, SEEK_SET);
// readlen = 0;
// while(readlen < Length)
// {
// //------------------------------------------------
// //每次读取n个分组
// //------------------------------------------------
// this_read = min(SIZE_10M, (Length - readlen));
// u32 n = (this_read + ENCODE_LEN - 1) / ENCODE_LEN; //
// memset(buffer_encode, 0, n * ENCODE_LEN);
// //fread(buffer_encode, this_read, 1, pImage->fp); //一次读n个分组,速度更快 note has bug
// //fread(buffer_encode, n * ENCODE_LEN, 1, pImage->fp); //OK 测试通过,必须读取整个的分组
// u32 nReadAlian = n * ENCODE_LEN;
// if(pImage->bWithEncpy == FALSE)
// {
// ReadFile(pImage->fp, buffer, nReadAlian/*n * ENCODE_LEN*/, &dwLen, NULL);
// }
//// else
//// {
//// ReadFile(pImage->fp, buffer_encode, nReadAlian/*n * ENCODE_LEN*/, &dwLen, NULL); //OK 测试通过,必须读取整个的分组
////
//// //fseek(pImage->fp, 0, SEEK_CUR);
//// //Msg("this_read=%x", this_read);
//// //------------------------------------------------
//// //分组数据解密
//// //------------------------------------------------
//// u8 * pin = buffer_encode;
//// u8 * pout= (u8 *)buffer;
//// pout = pout + readlen; //实际输出数据的偏移量
////
//// for (u32 i = 0; i < n; i++) //逐个分组进行解密
//// {
//// //------------------------------------------------
//// //每次解密一个分组
//// //------------------------------------------------
//// if (OK != pfDecode(pImage->rc_if_decode[DATA_ID].handle, pin , pout))
//// return 0;
//// /*
//// //debug start
//// if (i == (n-1))
//// {
//// Msg("last:%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x ",
//// pout[0], pout[1], pout[2], pout[3], pout[4], pout[5], pout[6], pout[7],
//// pout[8], pout[9], pout[10], pout[11], pout[12], pout[13], pout[14],pout[15]);
//// }
//// //debug end
//// */
//// pin += ENCODE_LEN;
//// pout+= ENCODE_LEN;
//// }
////
//// }
// //------------------------------------------------
// //计算实际有效数据长度
// //------------------------------------------------
// readlen += this_read;
// }
// if((pItem->pos + readlen) >= nFileLen )
// {
// readlen = nFileLen - pItem->pos;
// }
//
// pItem->pos += readlen;
// //Msg("Img_ReadItemData: pos_new =%x", pItem->pos);
// // Msg("Read %d\ nFileLen = %x\n", readlen, nFileLen);
// nRet = readlen;
// goto readEnd;
//
// }
// else
// {
// //------------------------------------------------
// //这里强制只处理分组对齐的情况,对于以前的一些固件包可能会引起不兼容的问题,
// //那种情况下只好启用原始版本来处理了
// //------------------------------------------------
//
// //MessageBox(NULL, "请按照对齐规则来处理!", "警告", MB_OK);
// //return 0;
//
// Msg("请按照对齐规则来处理!");
// nRet = __Img_ReadItemData(hImage, hItem, buffer, Length);
// }
//
//
//
//readEnd:
// free(buffer_encode);
// return nRet;
//}
//
//
////原始的版本可以运行不过每次读img文件是16byte速度不高需要进行提速
//__int64 __Img_ReadItemData(HIMAGE hImage, HIMAGEITEM hItem, void * buffer, __int64 Length)
//{
// __int64 readlen = 0;
// IMAGE_HANDLE* pImage = (IMAGE_HANDLE *)hImage;
// ITEM_HANDLE * pItem = (ITEM_HANDLE *)hItem;
// u8 buffer_encode[ENCODE_LEN];
// __int64 pos = 0;
// DWORD dwLen;
// pEnDecode pfDecode = pImage->rc_if_decode[DATA_ID].EnDecode;
// if (NULL == pImage || NULL == pItem || NULL == buffer || 0 == Length)
// {
// return 0;
// }
//
//
// if (pItem->pos >= pImage->ItemTable[pItem->index].filelenLo) //filelen <= datalen
// {
// Err("Img_ReadItemData", __FILE__, __LINE__, "pos >= pItem->filelen");
// return 0;
// }
// //------------------------------------------------
// //约束数据不会超出加密数据的范围
// //------------------------------------------------
// __int64 nTmp = Get64bitLen(pImage->ItemTable[pItem->index].datalenLo, pImage->ItemTable[pItem->index].datalenHi);
// Length = min(Length, nTmp - pItem->pos);
//
// if(pImage->bWithEncpy == FALSE)
// {
// nTmp = Get64bitLen(pImage->ItemTable[pItem->index].offsetLo, pImage->ItemTable[pItem->index].offsetHi);
// pos = nTmp + pItem->pos;
// //fseek(pImage->fp, pos, SEEK_SET);
// FsSeek(pImage->fp, pos, SEEK_SET);
// ReadFile(pImage->fp, buffer, Length, &dwLen, NULL);
// pItem->pos += Length;
// return Length;
// }
//
// //------------------------------------------------
// //加密后的数据以16byte进行分组需要处理跨边界的情况
// //------------------------------------------------
// if ((pItem->pos % ENCODE_LEN) == 0) //pos正好是分组的边界的情况
// {
// nTmp = Get64bitLen(pImage->ItemTable[pItem->index].offsetLo, pImage->ItemTable[pItem->index].offsetHi);
// pos = nTmp + pItem->pos;
// //fseek(pImage->fp, pos, SEEK_SET);
// FsSeek(pImage->fp, pos, SEEK_SET);
//
// while(readlen < Length)
// {
// //每次读取一个分组
// memset(buffer_encode, 0, ENCODE_LEN);
// // fread(buffer_encode, ENCODE_LEN, 1, pImage->fp);
// // fseek(pImage->fp, 0, SEEK_CUR);
// ReadFile(pImage->fp, buffer_encode, ENCODE_LEN, &dwLen, NULL);
// //分组数据解密
// u8 * pin = buffer_encode;
// u8 * pout= (u8 *)buffer;
// pout = pout + readlen;
// if (OK != pfDecode(pImage->rc_if_decode[DATA_ID].handle, pin , pout))
// return 0;
// //计算实际有效数据长度
// readlen += min(Length- readlen, ENCODE_LEN);
// }
// pItem->pos += readlen;
// return readlen;
// }
// else //pos不在边界
// {
// //pos不在边界向头方向seek
// pos = pImage->ItemTable[pItem->index].offsetLo +
// pItem->pos - (pItem->pos % ENCODE_LEN);
// //fseek(pImage->fp, pos, SEEK_SET);
// FsSeek(pImage->fp, pos, SEEK_SET);
//
// //-----------------------------------
// //**********************OOOOOOOOOOOOO *表示已经读取得数据 O表示未读取得数据
// //-----------------------------------
// if ((0 < Length) && (Length < ENCODE_LEN)) //读取的数据不足一个分组长度
// {
// u32 read = ENCODE_LEN - (pItem->pos % ENCODE_LEN); //分组中未读取的数据长度
// if (Length <= read) //需要读取得数据小于等于分组中未读取的数据长度 只用读一个分组即可
// {
// //-----------------------------------
// //**********************OOOOOOOOOOOOO *表示已经读取得数据 O表示未读取得数据
// //-----------------------------------
// u32 read = ENCODE_LEN - pItem->pos % ENCODE_LEN;
// memset(buffer_encode, 0, ENCODE_LEN);
// //fread(buffer_encode, ENCODE_LEN, 1, pImage->fp);
// ReadFile(pImage->fp, buffer_encode, ENCODE_LEN, &dwLen, NULL);
//
// //分组数据解密
// u8 * pin = buffer_encode;
// u8 * pout= (u8 *)buffer;
// pout = pout + readlen;
// if (OK != pfDecode(pImage->rc_if_decode[DATA_ID].handle, pin , pout))
// return 0;
//
// readlen = Length;
// pItem->pos += readlen;
// return readlen;
// }
// else //需要读两个分组的数据
// {
// //----------------------------------- //-----------------------------------
// //**********************OOOOOOOOOOOOO //OOOOOOOOOO
// //----------------------------------- //-----------------------------------
// //第一个分组
// u32 read = ENCODE_LEN - pItem->pos % ENCODE_LEN;
// memset(buffer_encode, 0, ENCODE_LEN);
// //fread(buffer_encode, ENCODE_LEN, 1, pImage->fp);
// ReadFile(pImage->fp, buffer_encode, ENCODE_LEN, &dwLen, NULL);
// //分组数据解密
// u8 * pin = buffer_encode;
// u8 * pout= (u8 *)buffer;
// pout = pout + readlen;
// if (OK != pfDecode(pImage->rc_if_decode[DATA_ID].handle, pin , pout))
// return 0;
//
// readlen += read;
//
// //第二个分组
// __int64 Left_Length = Length - read; //剩余的数据
// memset(buffer_encode, 0, ENCODE_LEN);
// //fread(buffer_encode, ENCODE_LEN, 1, pImage->fp);
// //fseek(pImage->fp, 0, SEEK_CUR);
// ReadFile(pImage->fp, buffer_encode, ENCODE_LEN, &dwLen, NULL);
// //分组数据解密
// pin = buffer_encode;
// pout= (u8 *)buffer;
// pout = pout + readlen;
// if (OK != pfDecode(pImage->rc_if_decode[DATA_ID].handle, pin , pout))
// return 0;
// readlen += Left_Length;
//
// pItem->pos += readlen;
// return readlen;
// }
// }
// else if (Length >= ENCODE_LEN) //读取的数据不少于一个分组长度
// {
// //-----------------------------------
// //**********************OOOOOOOOOOOOO *表示已经读取得数据 O表示未读取得数据
// //-----------------------------------
// u32 read = ENCODE_LEN - pItem->pos % ENCODE_LEN;
// memset(buffer_encode, 0, ENCODE_LEN);
// //fread(buffer_encode, ENCODE_LEN, 1, pImage->fp);
// // fread(pImage->fp, buffer_encode, ENCODE_LEN, &dwLen,NULL);
// ReadFile(pImage->fp, buffer_encode, ENCODE_LEN, &dwLen,NULL);
//
// //分组数据解密
// u8 * pin = buffer_encode;
// u8 * pout= (u8 *)buffer;
// pout = pout + readlen;
// if (OK != pfDecode(pImage->rc_if_decode[DATA_ID].handle, pin , pout))
// return 0;
//
// readlen += read;
//
// //------------------------------------------------
// //剩余的数据按照分组进行处理
// //------------------------------------------------
// u32 Left_Length = Length - read;
// u32 Left_readlen= 0;
// while(Left_readlen < Left_Length)
// {
// //每次读取一个分组
// memset(buffer_encode, 0, ENCODE_LEN);
// // fread(buffer_encode, ENCODE_LEN, 1, pImage->fp);
// // fseek(pImage->fp, 0, SEEK_CUR);
// ReadFile(pImage->fp, buffer_encode, ENCODE_LEN, &dwLen, NULL);
// //分组数据解密
// u8 * pin = buffer_encode;
// u8 * pout= (u8 *)buffer;
// pout = pout + readlen;
// if (OK != pfDecode(pImage->rc_if_decode[DATA_ID].handle, pin , pout))
// return 0;
// //计算实际有效数据长度
// Left_readlen += min(Left_Length - Left_readlen, ENCODE_LEN);
// }
//
// readlen += Left_readlen;
// }
//
// pItem->pos += readlen;
// return readlen;
// }
//
// return 0;
//}
//------------------------------------------------------------------------------------------------------------
//
// 函数说明
//
//
// 参数说明
//
//
// 返回值
//
//
// 其他
// 无
//
//------------------------------------------------------------------------------------------------------------
int Img_CloseItem (HIMAGE hImage, HIMAGEITEM hItem)
{
ITEM_HANDLE * pItem = (ITEM_HANDLE *)hItem;
if (NULL == pItem)
{
printf("sunxi sprite error : item is null when close it\n");
return -1;
}
//debug("try to free %x\n", (uint)pItem);
free(pItem);
pItem = NULL;
return 0;
}
//------------------------------------------------------------------------------------------------------------
//
// 函数说明
//
//
// 参数说明
//
//
// 返回值
//
//
// 其他
// 无
//
//------------------------------------------------------------------------------------------------------------
void Img_Close (HIMAGE hImage)
{
IMAGE_HANDLE * pImage = (IMAGE_HANDLE *)hImage;
if (NULL == pImage)
{
printf("sunxi sprite error : imghead is null when close it\n");
return ;
}
if (NULL != pImage->ItemTable)
{
free(pImage->ItemTable);
pImage->ItemTable = NULL;
}
memset(pImage, 0, sizeof(IMAGE_HANDLE));
free(pImage);
pImage = NULL;
return ;
}