本文整理汇总了C++中CFX_ByteTextBuf::EstimateSize方法的典型用法代码示例。如果您正苦于以下问题：C++ CFX_ByteTextBuf::EstimateSize方法的具体用法？C++ CFX_ByteTextBuf::EstimateSize怎么用？C++ CFX_ByteTextBuf::EstimateSize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CFX_ByteTextBuf的用法示例。
在下文中一共展示了CFX_ByteTextBuf::EstimateSize方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: OutputPath
void CFX_PSRenderer::OutputPath(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device)
{
int nPoints = pPathData->GetPointCount();
CFX_ByteTextBuf buf;
buf.EstimateSize(nPoints * 10);
for (int i = 0; i < nPoints; i ++) {
FX_BYTE flag = pPathData->GetFlag(i);
FX_FLOAT x = pPathData->GetPointX(i);
FX_FLOAT y = pPathData->GetPointY(i);
if (pObject2Device) {
pObject2Device->Transform(x, y);
}
buf << x << FX_BSTRC(" ") << y;
switch (flag & FXPT_TYPE) {
case FXPT_MOVETO:
buf << FX_BSTRC(" m ");
break;
case FXPT_LINETO:
if (flag & FXPT_CLOSEFIGURE) {
buf << FX_BSTRC(" l h ");
} else {
buf << FX_BSTRC(" l ");
}
break;
case FXPT_BEZIERTO: {
FX_FLOAT x1 = pPathData->GetPointX(i + 1);
FX_FLOAT x2 = pPathData->GetPointX(i + 2);
FX_FLOAT y1 = pPathData->GetPointY(i + 1);
FX_FLOAT y2 = pPathData->GetPointY(i + 2);
if (pObject2Device) {
pObject2Device->Transform(x1, y1);
pObject2Device->Transform(x2, y2);
}
buf << FX_BSTRC(" ") << x1 << FX_BSTRC(" ") << y1 << FX_BSTRC(" ") << x2 << FX_BSTRC(" ") << y2;
if (flag & FXPT_CLOSEFIGURE) {
buf << FX_BSTRC(" c h\n");
} else {
buf << FX_BSTRC(" c\n");
}
i += 2;
break;
}
}
}
m_pOutput->OutputPS((FX_LPCSTR)buf.GetBuffer(), buf.GetSize());
}示例2: Revision6_Hash
void Revision6_Hash(const uint8_t* password,
uint32_t size,
const uint8_t* salt,
const uint8_t* vector,
uint8_t* hash) {
int iBlockSize = 32;
uint8_t sha[128];
CRYPT_SHA256Start(sha);
CRYPT_SHA256Update(sha, password, size);
CRYPT_SHA256Update(sha, salt, 8);
if (vector) {
CRYPT_SHA256Update(sha, vector, 48);
}
uint8_t digest[32];
CRYPT_SHA256Finish(sha, digest);
CFX_ByteTextBuf buf;
uint8_t* input = digest;
uint8_t* key = input;
uint8_t* iv = input + 16;
uint8_t* E = buf.GetBuffer();
int iBufLen = buf.GetLength();
CFX_ByteTextBuf interDigest;
int i = 0;
uint8_t* aes = FX_Alloc(uint8_t, 2048);
while (i < 64 || i < E[iBufLen - 1] + 32) {
int iRoundSize = size + iBlockSize;
if (vector) {
iRoundSize += 48;
}
iBufLen = iRoundSize * 64;
buf.EstimateSize(iBufLen);
E = buf.GetBuffer();
CFX_ByteTextBuf content;
for (int j = 0; j < 64; ++j) {
content.AppendBlock(password, size);
content.AppendBlock(input, iBlockSize);
if (vector) {
content.AppendBlock(vector, 48);
}
}
CRYPT_AESSetKey(aes, 16, key, 16, TRUE);
CRYPT_AESSetIV(aes, iv);
CRYPT_AESEncrypt(aes, E, content.GetBuffer(), iBufLen);
int iHash = 0;
switch (BigOrder64BitsMod3(E)) {
case 0:
iHash = 0;
iBlockSize = 32;
break;
case 1:
iHash = 1;
iBlockSize = 48;
break;
default:
iHash = 2;
iBlockSize = 64;
break;
}
interDigest.EstimateSize(iBlockSize);
input = interDigest.GetBuffer();
if (iHash == 0) {
CRYPT_SHA256Generate(E, iBufLen, input);
} else if (iHash == 1) {
CRYPT_SHA384Generate(E, iBufLen, input);
} else if (iHash == 2) {
CRYPT_SHA512Generate(E, iBufLen, input);
}
key = input;
iv = input + 16;
++i;
}
FX_Free(aes);
if (hash) {
FXSYS_memcpy(hash, input, 32);
}
}