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authorDan Sinclair <dsinclair@chromium.org>2017-03-29 15:18:16 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-03-29 21:00:18 +0000
commitb929ab0886a2b0ceb701989ef126e5b0cabf6997 (patch)
treeea8dd8ea021c45a1fa95181d56316430740e150b /xfa/fgas/localization/cfx_decimal.cpp
parentf761a3aa4a001736249e1d7c3dce3b9dc8436a8d (diff)
downloadpdfium-b929ab0886a2b0ceb701989ef126e5b0cabf6997.tar.xz
Remove fgas/localization directory
This Cl moves the CFX_DateTime, CFX_Decimal and IFX_Locale files into core/fxcrt and builds only for XFA. The CFX_FormatString code is moved info fgas/crt and renamed CFGAS_FormatString to match the fgas naming. Change-Id: I8d9061195d2225da0389cbc9d018fcbd2e9a3c0c Reviewed-on: https://pdfium-review.googlesource.com/3257 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
Diffstat (limited to 'xfa/fgas/localization/cfx_decimal.cpp')
-rw-r--r--xfa/fgas/localization/cfx_decimal.cpp471
1 files changed, 0 insertions, 471 deletions
diff --git a/xfa/fgas/localization/cfx_decimal.cpp b/xfa/fgas/localization/cfx_decimal.cpp
deleted file mode 100644
index b3296f30cd..0000000000
--- a/xfa/fgas/localization/cfx_decimal.cpp
+++ /dev/null
@@ -1,471 +0,0 @@
-// Copyright 2017 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "xfa/fgas/localization/cfx_decimal.h"
-
-#include <algorithm>
-#include <utility>
-
-#define FXMATH_DECIMAL_SCALELIMIT 0x1c
-#define FXMATH_DECIMAL_NEGMASK (0x80000000L)
-#define FXMATH_DECIMAL_FORCEBOOL(x) (!!(x))
-#define FXMATH_DECIMAL_MAKEFLAGS(NEG, SCALE) \
- (((SCALE) << 0x10) | ((NEG) ? FXMATH_DECIMAL_NEGMASK : 0))
-#define FXMATH_DECIMAL_FLAGS2NEG(FLAGS) \
- FXMATH_DECIMAL_FORCEBOOL((FLAGS)&FXMATH_DECIMAL_NEGMASK)
-#define FXMATH_DECIMAL_FLAGS2SCALE(FLAGS) \
- ((uint8_t)(((FLAGS) & ~FXMATH_DECIMAL_NEGMASK) >> 0x10))
-#define FXMATH_DECIMAL_RSHIFT32BIT(x) ((x) >> 0x10 >> 0x10)
-#define FXMATH_DECIMAL_LSHIFT32BIT(x) ((x) << 0x10 << 0x10)
-
-namespace {
-
-inline uint8_t decimal_helper_div10(uint64_t& phi,
- uint64_t& pmid,
- uint64_t& plo) {
- uint8_t retVal;
- pmid += FXMATH_DECIMAL_LSHIFT32BIT(phi % 0xA);
- phi /= 0xA;
- plo += FXMATH_DECIMAL_LSHIFT32BIT(pmid % 0xA);
- pmid /= 0xA;
- retVal = plo % 0xA;
- plo /= 0xA;
- return retVal;
-}
-
-inline uint8_t decimal_helper_div10_any(uint64_t nums[], uint8_t numcount) {
- uint8_t retVal = 0;
- for (int i = numcount - 1; i > 0; i--) {
- nums[i - 1] += FXMATH_DECIMAL_LSHIFT32BIT(nums[i] % 0xA);
- nums[i] /= 0xA;
- }
- if (numcount) {
- retVal = nums[0] % 0xA;
- nums[0] /= 0xA;
- }
- return retVal;
-}
-
-inline void decimal_helper_mul10(uint64_t& phi, uint64_t& pmid, uint64_t& plo) {
- plo *= 0xA;
- pmid = pmid * 0xA + FXMATH_DECIMAL_RSHIFT32BIT(plo);
- plo = (uint32_t)plo;
- phi = phi * 0xA + FXMATH_DECIMAL_RSHIFT32BIT(pmid);
- pmid = (uint32_t)pmid;
-}
-
-inline void decimal_helper_mul10_any(uint64_t nums[], uint8_t numcount) {
- nums[0] *= 0xA;
- for (int i = 1; i < numcount; i++) {
- nums[i] = nums[i] * 0xA + FXMATH_DECIMAL_RSHIFT32BIT(nums[i - 1]);
- nums[i - 1] = (uint32_t)nums[i - 1];
- }
-}
-
-inline void decimal_helper_normalize(uint64_t& phi,
- uint64_t& pmid,
- uint64_t& plo) {
- phi += FXMATH_DECIMAL_RSHIFT32BIT(pmid);
- pmid = (uint32_t)pmid;
- pmid += FXMATH_DECIMAL_RSHIFT32BIT(plo);
- plo = (uint32_t)plo;
- phi += FXMATH_DECIMAL_RSHIFT32BIT(pmid);
- pmid = (uint32_t)pmid;
-}
-
-inline void decimal_helper_normalize_any(uint64_t nums[], uint8_t len) {
- for (int i = len - 2; i > 0; i--) {
- nums[i + 1] += FXMATH_DECIMAL_RSHIFT32BIT(nums[i]);
- nums[i] = (uint32_t)nums[i];
- }
- for (int i = 0; i < len - 1; i++) {
- nums[i + 1] += FXMATH_DECIMAL_RSHIFT32BIT(nums[i]);
- nums[i] = (uint32_t)nums[i];
- }
-}
-
-inline int8_t decimal_helper_raw_compare_any(uint64_t a[],
- uint8_t al,
- uint64_t b[],
- uint8_t bl) {
- int8_t retVal = 0;
- for (int i = std::max(al - 1, bl - 1); i >= 0; i--) {
- uint64_t l = (i >= al ? 0 : a[i]), r = (i >= bl ? 0 : b[i]);
- retVal += (l > r ? 1 : (l < r ? -1 : 0));
- if (retVal)
- return retVal;
- }
- return retVal;
-}
-
-inline void decimal_helper_dec_any(uint64_t a[], uint8_t al) {
- for (int i = 0; i < al; i++) {
- if (a[i]--)
- return;
- }
-}
-
-inline void decimal_helper_inc_any(uint64_t a[], uint8_t al) {
- for (int i = 0; i < al; i++) {
- a[i]++;
- if ((uint32_t)a[i] == a[i])
- return;
- a[i] = 0;
- }
-}
-
-inline void decimal_helper_raw_mul(uint64_t a[],
- uint8_t al,
- uint64_t b[],
- uint8_t bl,
- uint64_t c[],
- uint8_t cl) {
- ASSERT(al + bl <= cl);
- for (int i = 0; i < cl; i++)
- c[i] = 0;
-
- for (int i = 0; i < al; i++) {
- for (int j = 0; j < bl; j++) {
- uint64_t m = (uint64_t)a[i] * b[j];
- c[i + j] += (uint32_t)m;
- c[i + j + 1] += FXMATH_DECIMAL_RSHIFT32BIT(m);
- }
- }
- for (int i = 0; i < cl - 1; i++) {
- c[i + 1] += FXMATH_DECIMAL_RSHIFT32BIT(c[i]);
- c[i] = (uint32_t)c[i];
- }
- for (int i = 0; i < cl; i++)
- c[i] = (uint32_t)c[i];
-}
-
-inline void decimal_helper_raw_div(uint64_t a[],
- uint8_t al,
- uint64_t b[],
- uint8_t bl,
- uint64_t c[],
- uint8_t cl) {
- for (int i = 0; i < cl; i++)
- c[i] = 0;
-
- uint64_t left[16] = {0};
- uint64_t right[16] = {0};
- left[0] = 0;
- for (int i = 0; i < al; i++)
- right[i] = a[i];
-
- uint64_t tmp[16];
- while (decimal_helper_raw_compare_any(left, al, right, al) <= 0) {
- uint64_t cur[16];
- for (int i = 0; i < al; i++)
- cur[i] = left[i] + right[i];
-
- for (int i = al - 1; i >= 0; i--) {
- if (i)
- cur[i - 1] += FXMATH_DECIMAL_LSHIFT32BIT(cur[i] % 2);
- cur[i] /= 2;
- }
-
- decimal_helper_raw_mul(cur, al, b, bl, tmp, 16);
- switch (decimal_helper_raw_compare_any(tmp, 16, a, al)) {
- case -1:
- for (int i = 0; i < 16; i++)
- left[i] = cur[i];
-
- left[0]++;
- decimal_helper_normalize_any(left, al);
- break;
- case 1:
- for (int i = 0; i < 16; i++)
- right[i] = cur[i];
- decimal_helper_dec_any(right, al);
- break;
- case 0:
- for (int i = 0; i < std::min(al, cl); i++)
- c[i] = cur[i];
- return;
- }
- }
- for (int i = 0; i < std::min(al, cl); i++)
- c[i] = left[i];
-}
-
-inline bool decimal_helper_outofrange(uint64_t a[], uint8_t al, uint8_t goal) {
- for (int i = goal; i < al; i++) {
- if (a[i])
- return true;
- }
- return false;
-}
-
-inline void decimal_helper_shrinkintorange(uint64_t a[],
- uint8_t al,
- uint8_t goal,
- uint8_t& scale) {
- bool bRoundUp = false;
- while (scale != 0 && (scale > FXMATH_DECIMAL_SCALELIMIT ||
- decimal_helper_outofrange(a, al, goal))) {
- bRoundUp = decimal_helper_div10_any(a, al) >= 5;
- scale--;
- }
- if (bRoundUp) {
- decimal_helper_normalize_any(a, goal);
- decimal_helper_inc_any(a, goal);
- }
-}
-
-inline void decimal_helper_truncate(uint64_t& phi,
- uint64_t& pmid,
- uint64_t& plo,
- uint8_t& scale,
- uint8_t minscale = 0) {
- while (scale > minscale) {
- uint64_t thi = phi, tmid = pmid, tlo = plo;
- if (decimal_helper_div10(thi, tmid, tlo) != 0)
- break;
-
- phi = thi;
- pmid = tmid;
- plo = tlo;
- scale--;
- }
-}
-
-} // namespace
-
-CFX_Decimal::CFX_Decimal() : m_uHi(0), m_uLo(0), m_uMid(0), m_uFlags(0) {}
-
-CFX_Decimal::CFX_Decimal(uint64_t val)
- : m_uHi(0),
- m_uLo(static_cast<uint32_t>(val)),
- m_uMid(static_cast<uint32_t>(FXMATH_DECIMAL_RSHIFT32BIT(val))),
- m_uFlags(0) {}
-
-CFX_Decimal::CFX_Decimal(uint32_t val)
- : m_uHi(0), m_uLo(static_cast<uint32_t>(val)), m_uMid(0), m_uFlags(0) {}
-
-CFX_Decimal::CFX_Decimal(uint32_t lo,
- uint32_t mid,
- uint32_t hi,
- bool neg,
- uint8_t scale)
- : m_uHi(hi),
- m_uLo(lo),
- m_uMid(mid),
- m_uFlags(FXMATH_DECIMAL_MAKEFLAGS(
- neg && IsNotZero(),
- (scale > FXMATH_DECIMAL_SCALELIMIT ? 0 : scale))) {}
-
-CFX_Decimal::CFX_Decimal(int32_t val) {
- if (val >= 0) {
- *this = CFX_Decimal(static_cast<uint32_t>(val));
- } else {
- *this = CFX_Decimal(static_cast<uint32_t>(-val));
- SetNegate();
- }
-}
-
-CFX_Decimal::CFX_Decimal(float val, uint8_t scale) {
- float newval = fabs(val);
- uint64_t phi;
- uint64_t pmid;
- uint64_t plo;
- plo = static_cast<uint64_t>(newval);
- pmid = static_cast<uint64_t>(newval / 1e32);
- phi = static_cast<uint64_t>(newval / 1e64);
- newval = FXSYS_fmod(newval, 1.0f);
- for (uint8_t iter = 0; iter < scale; iter++) {
- decimal_helper_mul10(phi, pmid, plo);
- newval *= 10;
- plo += static_cast<uint64_t>(newval);
- newval = FXSYS_fmod(newval, 1.0f);
- }
-
- plo += FXSYS_round(newval);
- decimal_helper_normalize(phi, pmid, plo);
- m_uHi = static_cast<uint32_t>(phi);
- m_uMid = static_cast<uint32_t>(pmid);
- m_uLo = static_cast<uint32_t>(plo);
- m_uFlags = FXMATH_DECIMAL_MAKEFLAGS(val < 0 && IsNotZero(), scale);
-}
-
-CFX_Decimal::CFX_Decimal(const CFX_WideStringC& strObj) {
- const wchar_t* str = strObj.c_str();
- const wchar_t* strBound = str + strObj.GetLength();
- bool pointmet = false;
- bool negmet = false;
- uint8_t scale = 0;
- m_uHi = 0;
- m_uMid = 0;
- m_uLo = 0;
- while (str != strBound && *str == ' ')
- str++;
- if (str != strBound && *str == '-') {
- negmet = 1;
- str++;
- } else if (str != strBound && *str == '+') {
- str++;
- }
-
- while (str != strBound && ((*str >= '0' && *str <= '9') || *str == '.') &&
- scale < FXMATH_DECIMAL_SCALELIMIT) {
- if (*str == '.') {
- if (!pointmet)
- pointmet = 1;
- } else {
- m_uHi = m_uHi * 0xA + FXMATH_DECIMAL_RSHIFT32BIT((uint64_t)m_uMid * 0xA);
- m_uMid = m_uMid * 0xA + FXMATH_DECIMAL_RSHIFT32BIT((uint64_t)m_uLo * 0xA);
- m_uLo = m_uLo * 0xA + (*str - '0');
- if (pointmet)
- scale++;
- }
- str++;
- }
- m_uFlags = FXMATH_DECIMAL_MAKEFLAGS(negmet && IsNotZero(), scale);
-}
-
-CFX_Decimal::operator CFX_WideString() const {
- CFX_WideString retString;
- CFX_WideString tmpbuf;
- uint64_t phi = m_uHi;
- uint64_t pmid = m_uMid;
- uint64_t plo = m_uLo;
- while (phi || pmid || plo)
- tmpbuf += decimal_helper_div10(phi, pmid, plo) + '0';
-
- uint8_t outputlen = (uint8_t)tmpbuf.GetLength();
- uint8_t scale = (uint8_t)FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags);
- while (scale >= outputlen) {
- tmpbuf += '0';
- outputlen++;
- }
- if (FXMATH_DECIMAL_FLAGS2NEG(m_uFlags) && IsNotZero())
- retString += '-';
-
- for (uint8_t idx = 0; idx < outputlen; idx++) {
- if (idx == (outputlen - scale) && scale != 0)
- retString += '.';
- retString += tmpbuf[outputlen - 1 - idx];
- }
- return retString;
-}
-
-CFX_Decimal::operator double() const {
- double pow = (double)(1 << 16) * (1 << 16);
- double base = static_cast<double>(m_uHi) * pow * pow +
- static_cast<double>(m_uMid) * pow + static_cast<double>(m_uLo);
- int8_t scale = FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags);
- bool bNeg = FXMATH_DECIMAL_FLAGS2NEG(m_uFlags);
- return (bNeg ? -1 : 1) * base * ::pow(10.0, -scale);
-}
-
-void CFX_Decimal::SetScale(uint8_t newscale) {
- uint8_t oldscale = FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags);
- if (newscale > oldscale) {
- uint64_t phi = m_uHi;
- uint64_t pmid = m_uMid;
- uint64_t plo = m_uLo;
- for (uint8_t iter = 0; iter < newscale - oldscale; iter++)
- decimal_helper_mul10(phi, pmid, plo);
-
- m_uHi = static_cast<uint32_t>(phi);
- m_uMid = static_cast<uint32_t>(pmid);
- m_uLo = static_cast<uint32_t>(plo);
- m_uFlags = FXMATH_DECIMAL_MAKEFLAGS(
- FXMATH_DECIMAL_FLAGS2NEG(m_uFlags) && IsNotZero(), newscale);
- } else if (newscale < oldscale) {
- uint64_t phi;
- uint64_t pmid;
- uint64_t plo;
- phi = 0;
- pmid = 0;
- plo = 5;
- for (uint8_t iter = 0; iter < oldscale - newscale - 1; iter++)
- decimal_helper_mul10(phi, pmid, plo);
-
- phi += m_uHi;
- pmid += m_uMid;
- plo += m_uLo;
- decimal_helper_normalize(phi, pmid, plo);
- for (uint8_t iter = 0; iter < oldscale - newscale; iter++)
- decimal_helper_div10(phi, pmid, plo);
-
- m_uHi = static_cast<uint32_t>(phi);
- m_uMid = static_cast<uint32_t>(pmid);
- m_uLo = static_cast<uint32_t>(plo);
- m_uFlags = FXMATH_DECIMAL_MAKEFLAGS(
- FXMATH_DECIMAL_FLAGS2NEG(m_uFlags) && IsNotZero(), newscale);
- }
-}
-
-uint8_t CFX_Decimal::GetScale() {
- return FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags);
-}
-
-void CFX_Decimal::SetNegate() {
- if (IsNotZero())
- m_uFlags ^= FXMATH_DECIMAL_NEGMASK;
-}
-
-void CFX_Decimal::Swap(CFX_Decimal& val) {
- std::swap(m_uHi, val.m_uHi);
- std::swap(m_uMid, val.m_uMid);
- std::swap(m_uLo, val.m_uLo);
- std::swap(m_uFlags, val.m_uFlags);
-}
-
-CFX_Decimal CFX_Decimal::operator*(const CFX_Decimal& val) const {
- uint64_t a[3] = {m_uLo, m_uMid, m_uHi},
- b[3] = {val.m_uLo, val.m_uMid, val.m_uHi};
- uint64_t c[6];
- decimal_helper_raw_mul(a, 3, b, 3, c, 6);
- bool neg = FXMATH_DECIMAL_FLAGS2NEG(m_uFlags) ^
- FXMATH_DECIMAL_FLAGS2NEG(val.m_uFlags);
- uint8_t scale = FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags) +
- FXMATH_DECIMAL_FLAGS2SCALE(val.m_uFlags);
- decimal_helper_shrinkintorange(c, 6, 3, scale);
- return CFX_Decimal(static_cast<uint32_t>(c[0]), static_cast<uint32_t>(c[1]),
- static_cast<uint32_t>(c[2]), neg, scale);
-}
-
-CFX_Decimal CFX_Decimal::operator/(const CFX_Decimal& val) const {
- if (!val.IsNotZero())
- return CFX_Decimal();
-
- bool neg = FXMATH_DECIMAL_FLAGS2NEG(m_uFlags) ^
- FXMATH_DECIMAL_FLAGS2NEG(val.m_uFlags);
- uint64_t a[7] = {m_uLo, m_uMid, m_uHi},
- b[3] = {val.m_uLo, val.m_uMid, val.m_uHi}, c[7] = {0};
- uint8_t scale = 0;
- if (FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags) <
- FXMATH_DECIMAL_FLAGS2SCALE(val.m_uFlags)) {
- for (int i = FXMATH_DECIMAL_FLAGS2SCALE(val.m_uFlags) -
- FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags);
- i > 0; i--) {
- decimal_helper_mul10_any(a, 7);
- }
- } else {
- scale = FXMATH_DECIMAL_FLAGS2SCALE(m_uFlags) -
- FXMATH_DECIMAL_FLAGS2SCALE(val.m_uFlags);
- }
-
- uint8_t minscale = scale;
- if (!IsNotZero())
- return CFX_Decimal(0, 0, 0, 0, minscale);
-
- while (!a[6]) {
- decimal_helper_mul10_any(a, 7);
- scale++;
- }
-
- decimal_helper_div10_any(a, 7);
- scale--;
- decimal_helper_raw_div(a, 6, b, 3, c, 7);
- decimal_helper_shrinkintorange(c, 6, 3, scale);
- decimal_helper_truncate(c[2], c[1], c[0], scale, minscale);
- return CFX_Decimal(static_cast<uint32_t>(c[0]), static_cast<uint32_t>(c[1]),
- static_cast<uint32_t>(c[2]), neg, scale);
-}