SkString.cpp revision 05b6b4d746867a9fb02e14edfe1bf3685abeb813
10910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project/* libs/graphics/sgl/SkString.cpp 20910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project** 30910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project** Copyright 2006, The Android Open Source Project 40910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project** 505b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger** Licensed under the Apache License, Version 2.0 (the "License"); 605b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger** you may not use this file except in compliance with the License. 705b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger** You may obtain a copy of the License at 80910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project** 905b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger** http://www.apache.org/licenses/LICENSE-2.0 100910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project** 1105b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger** Unless required by applicable law or agreed to in writing, software 1205b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger** distributed under the License is distributed on an "AS IS" BASIS, 1305b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1405b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger** See the License for the specific language governing permissions and 150910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project** limitations under the License. 160910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project*/ 170910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 180910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#include "SkString.h" 190910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#include "SkFixed.h" 200910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#include "SkUtils.h" 210910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#include <stdarg.h> 2205b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger#include <stdio.h> 2305b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger 2405b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger// number of bytes (on the stack) to receive the printf result 2505b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenbergerstatic const size_t kBufferSize = 256; 2605b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger 2705b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger#ifdef SK_BUILD_FOR_WIN 2805b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger #define VSNPRINTF _vsnprintf 2905b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger #define SNPRINTF _snprintf 3005b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger#else 3105b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger #define VSNPRINTF vsnprintf 3205b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger #define SNPRINTF snprintf 3305b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger#endif 3405b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger 3505b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger#define ARGS_TO_BUFFER(format, buffer, size) \ 3605b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger do { \ 3705b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger va_list args; \ 3805b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger va_start(args, format); \ 3905b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger VSNPRINTF(buffer, size, format, args); \ 4005b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger va_end(args); \ 4105b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger } while (0) 4205b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger 4305b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger/////////////////////////////////////////////////////////////////////////////// 440910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 450910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectbool SkStrStartsWith(const char string[], const char prefix[]) 460910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 470910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(string); 480910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(prefix); 490910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return !strncmp(string, prefix, strlen(prefix)); 500910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 510910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 520910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectbool SkStrEndsWith(const char string[], const char suffix[]) 530910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 540910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(string); 550910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(suffix); 560910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project size_t strLen = strlen(string); 570910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project size_t suffixLen = strlen(suffix); 580910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return strLen >= suffixLen && 590910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project !strncmp(string + strLen - suffixLen, suffix, suffixLen); 600910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 610910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 620910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectint SkStrStartsWithOneOf(const char string[], const char prefixes[]) 630910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 640910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project int index = 0; 650910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project do { 660910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project const char* limit = strchr(prefixes, '\0'); 670910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (!strncmp(string, prefixes, limit - prefixes)) 680910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return index; 690910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project prefixes = limit + 1; 700910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project index++; 710910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } while (prefixes[0]); 720910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return -1; 730910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 740910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 750910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectchar* SkStrAppendS32(char string[], int32_t dec) 760910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 770910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkDEBUGCODE(char* start = string;) 780910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 790910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char buffer[SkStrAppendS32_MaxSize]; 800910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* p = buffer + sizeof(buffer); 810910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project bool neg = false; 820910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 830910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (dec < 0) 840910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 850910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project neg = true; 860910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project dec = -dec; 870910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 880910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project do { 890910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project *--p = SkToU8('0' + dec % 10); 900910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project dec /= 10; 910910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } while (dec != 0); 920910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (neg) 930910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project *--p = '-'; 940910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 950910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(p >= buffer); 960910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* stop = buffer + sizeof(buffer); 970910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project while (p < stop) 980910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project *string++ = *p++; 990910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 1000910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(string - start <= SkStrAppendS32_MaxSize); 1010910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return string; 1020910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 1030910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 10440528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenbergerchar* SkStrAppendS64(char string[], int64_t dec, int minDigits) 10540528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger{ 10640528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger SkDEBUGCODE(char* start = string;) 10740528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 10840528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger char buffer[SkStrAppendS64_MaxSize]; 10940528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger char* p = buffer + sizeof(buffer); 11040528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger bool neg = false; 11140528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 11240528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger if (dec < 0) { 11340528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger neg = true; 11440528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger dec = -dec; 11540528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger } 11640528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger do { 11740528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger *--p = SkToU8('0' + dec % 10); 11840528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger dec /= 10; 11940528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger minDigits--; 12040528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger } while (dec != 0); 12140528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger while (minDigits > 0) { 12240528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger *--p = '0'; 12340528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger minDigits--; 12440528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger } 12540528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger if (neg) 12640528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger *--p = '-'; 12740528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 12840528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger SkASSERT(p >= buffer); 12940528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger size_t cp_len = buffer + sizeof(buffer) - p; 13040528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger memcpy(string, p, cp_len); 13140528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger string += cp_len; 13240528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 13340528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger SkASSERT(string - start <= SkStrAppendS64_MaxSize); 13440528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger return string; 13540528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger} 13640528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 13705b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger#ifdef SK_CAN_USE_FLOAT 13805b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenbergerchar* SkStrAppendFloat(char string[], float value) 1390910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 14005b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger // since floats have at most 8 significant digits, we limit our %g to that. 14105b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger static const char gFormat[] = "%.8g"; 14205b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger // make it 1 larger for the terminating 0 14305b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger char buffer[SkStrAppendScalar_MaxSize + 1]; 14405b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger int len = SNPRINTF(buffer, sizeof(buffer), gFormat, value); 14505b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger memcpy(string, buffer, len); 14605b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger SkASSERT(len <= SkStrAppendScalar_MaxSize); 14705b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger return string + len; 14805b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger} 14905b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger#endif 1500910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 15105b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenbergerchar* SkStrAppendFixed(char string[], SkFixed x) 15205b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger{ 15305b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger SkDEBUGCODE(char* start = string;) 1540910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (x < 0) 1550910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 1560910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project *string++ = '-'; 1570910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project x = -x; 1580910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 1590910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 1600910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project unsigned frac = x & 0xFFFF; 1610910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project x >>= 16; 1620910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (frac == 0xFFFF) // need to do this to "round up", since 65535/65536 is closer to 1 than to .9999 1630910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 1640910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project x += 1; 1650910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project frac = 0; 1660910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 1670910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project string = SkStrAppendS32(string, x); 1680910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 1690910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project // now handle the fractional part (if any) 1700910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (frac) 1710910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 1720910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project static const uint16_t gTens[] = { 1000, 100, 10, 1 }; 1730910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project const uint16_t* tens = gTens; 1740910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 1750910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project x = SkFixedRound(frac * 10000); 1760910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(x <= 10000); 1770910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (x == 10000) { 1780910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project x -= 1; 1790910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 1800910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project *string++ = '.'; 1810910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project do { 1820910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project unsigned powerOfTen = *tens++; 1830910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project *string++ = SkToU8('0' + x / powerOfTen); 1840910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project x %= powerOfTen; 1850910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } while (x != 0); 1860910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 18705b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger 1880910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(string - start <= SkStrAppendScalar_MaxSize); 1890910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return string; 1900910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 1910910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 1920910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project//////////////////////////////////////////////////////////////////////////////////// 1930910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 1940910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#define kMaxRefCnt_SkString SK_MaxU16 1950910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 1960910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project// the 3 values are [length] [refcnt] [terminating zero data] 1970910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectconst SkString::Rec SkString::gEmptyRec = { 0, 0, 0 }; 1980910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 1990910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#define SizeOfRec() (gEmptyRec.data() - (const char*)&gEmptyRec) 2000910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2010910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source ProjectSkString::Rec* SkString::AllocRec(const char text[], U16CPU len) 2020910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 2030910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project Rec* rec; 2040910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2050910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (len == 0) 2060910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project rec = const_cast<Rec*>(&gEmptyRec); 2070910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project else 2080910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 2090910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project // add 1 for terminating 0, then align4 so we can have some slop when growing the string 2100910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project rec = (Rec*)sk_malloc_throw(SizeOfRec() + SkAlign4(len + 1)); 2110910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project rec->fLength = SkToU16(len); 2120910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project rec->fRefCnt = 1; 2130910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (text) 2140910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project memcpy(rec->data(), text, len); 2150910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project rec->data()[len] = 0; 2160910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 2170910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return rec; 2180910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 2190910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2200910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source ProjectSkString::Rec* SkString::RefRec(Rec* src) 2210910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 2220910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (src != &gEmptyRec) 2230910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 2240910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (src->fRefCnt == kMaxRefCnt_SkString) { 2250910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project src = AllocRec(src->data(), src->fLength); 2260910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } else 2270910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project src->fRefCnt += 1; 2280910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 2290910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return src; 2300910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 2310910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2320910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#ifdef SK_DEBUG 2330910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::validate() const 2340910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 2350910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project // make sure know one has written over our global 2360910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(gEmptyRec.fLength == 0); 2370910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(gEmptyRec.fRefCnt == 0); 2380910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(gEmptyRec.data()[0] == 0); 2390910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2400910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (fRec != &gEmptyRec) 2410910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 2420910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(fRec->fLength > 0); 2430910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(fRec->fRefCnt > 0); 2440910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(fRec->data()[fRec->fLength] == 0); 2450910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 2460910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(fStr == c_str()); 2470910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 2480910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#endif 2490910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2500910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project/////////////////////////////////////////////////////////////////////// 2510910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2520910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source ProjectSkString::SkString() : fRec(const_cast<Rec*>(&gEmptyRec)) { 2530910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#ifdef SK_DEBUG 2540910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fStr = fRec->data(); 2550910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#endif 2560910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 2570910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2580910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source ProjectSkString::SkString(size_t len) 2590910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 2600910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(SkToU16(len) == len); // can't handle larger than 64K 2610910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2620910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fRec = AllocRec(NULL, (U16CPU)len); 2630910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#ifdef SK_DEBUG 2640910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fStr = fRec->data(); 2650910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#endif 2660910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 2670910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2680910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source ProjectSkString::SkString(const char text[]) 2690910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 2700910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project size_t len = text ? strlen(text) : 0; 2710910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2720910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fRec = AllocRec(text, (U16CPU)len); 2730910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#ifdef SK_DEBUG 2740910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fStr = fRec->data(); 2750910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#endif 2760910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 2770910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2780910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source ProjectSkString::SkString(const char text[], size_t len) 2790910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 2800910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fRec = AllocRec(text, (U16CPU)len); 2810910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#ifdef SK_DEBUG 2820910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fStr = fRec->data(); 2830910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#endif 2840910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 2850910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2860910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source ProjectSkString::SkString(const SkString& src) 2870910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 2880910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project src.validate(); 2890910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2900910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fRec = RefRec(src.fRec); 2910910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#ifdef SK_DEBUG 2920910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fStr = fRec->data(); 2930910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#endif 2940910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 2950910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 2960910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source ProjectSkString::~SkString() 2970910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 2980910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->validate(); 2990910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3000910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (fRec->fLength) 3010910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 3020910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(fRec->fRefCnt > 0); 3030910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (--fRec->fRefCnt == 0) 3040910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project sk_free(fRec); 3050910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 3060910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 3070910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3080910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectbool SkString::equals(const SkString& src) const 3090910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 3100910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return fRec == src.fRec || this->equals(src.c_str(), src.size()); 3110910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 3120910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3130910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectbool SkString::equals(const char text[]) const 3140910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 3150910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return this->equals(text, text ? strlen(text) : 0); 3160910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 3170910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3180910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectbool SkString::equals(const char text[], size_t len) const 3190910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 3200910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(len == 0 || text != NULL); 3210910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3220910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return fRec->fLength == len && !memcmp(fRec->data(), text, len); 3230910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 3240910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3250910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source ProjectSkString& SkString::operator=(const SkString& src) 3260910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 3270910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->validate(); 3280910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3290910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (fRec != src.fRec) 3300910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 3310910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkString tmp(src); 3320910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->swap(tmp); 3330910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 3340910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return *this; 3350910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 3360910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3370910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::reset() 3380910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 3390910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->validate(); 3400910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3410910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (fRec->fLength) 3420910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 3430910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(fRec->fRefCnt > 0); 3440910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (--fRec->fRefCnt == 0) 3450910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project sk_free(fRec); 3460910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 3470910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3480910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fRec = const_cast<Rec*>(&gEmptyRec); 3490910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#ifdef SK_DEBUG 3500910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fStr = fRec->data(); 3510910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#endif 3520910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 3530910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3540910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectchar* SkString::writable_str() 3550910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 3560910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->validate(); 3570910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3580910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (fRec->fLength) 3590910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 3600910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (fRec->fRefCnt > 1) 3610910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 3620910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fRec->fRefCnt -= 1; 3630910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fRec = AllocRec(fRec->data(), fRec->fLength); 3640910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project #ifdef SK_DEBUG 3650910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fStr = fRec->data(); 3660910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project #endif 3670910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 3680910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 3690910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project return fRec->data(); 3700910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 3710910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3720910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::set(const char text[]) 3730910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 3740910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->set(text, text ? strlen(text) : 0); 3750910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 3760910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 3770910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::set(const char text[], size_t len) 3780910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 3790910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (len == 0) 3800910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->reset(); 3810910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project else if (fRec->fRefCnt == 1 && len <= fRec->fLength) // should we resize if len <<<< fLength, to save RAM? (e.g. len < (fLength>>1)) 3820910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 3830910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project // just use less of the buffer without allocating a smaller one 3840910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* p = this->writable_str(); 3850910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (text) 3860910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project memcpy(p, text, len); 3870910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project p[len] = 0; 3880910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fRec->fLength = SkToU16(len); 3890910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 3900910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project else if (fRec->fRefCnt == 1 && ((unsigned)fRec->fLength >> 2) == (len >> 2)) 3910910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 3920910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project // we have spare room in the current allocation, so don't alloc a larger one 3930910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* p = this->writable_str(); 3940910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (text) 3950910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project memcpy(p, text, len); 3960910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project p[len] = 0; 3970910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fRec->fLength = SkToU16(len); 3980910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 3990910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project else 4000910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 4010910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkString tmp(text, len); 4020910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->swap(tmp); 4030910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 4040910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 4050910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4060910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::setUTF16(const uint16_t src[]) 4070910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 4080910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project int count = 0; 4090910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4100910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project while (src[count]) 4110910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project count += 1; 4120910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project setUTF16(src, count); 4130910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 4140910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4150910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::setUTF16(const uint16_t src[], size_t count) 4160910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 4170910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (count == 0) 4180910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->reset(); 4190910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project else if (count <= fRec->fLength) // should we resize if len <<<< fLength, to save RAM? (e.g. len < (fLength>>1)) 4200910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 4210910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (count < fRec->fLength) 4220910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->resize(count); 4230910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* p = this->writable_str(); 4240910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project for (size_t i = 0; i < count; i++) 4250910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project p[i] = SkToU8(src[i]); 4260910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project p[count] = 0; 4270910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 4280910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project else 4290910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 4300910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkString tmp(count); // puts a null terminator at the end of the string 4310910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* p = tmp.writable_str(); 4320910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4330910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project for (size_t i = 0; i < count; i++) 4340910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project p[i] = SkToU8(src[i]); 4350910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4360910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->swap(tmp); 4370910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 4380910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 4390910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4400910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::insert(size_t offset, const char text[]) 4410910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 4420910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->insert(offset, text, text ? strlen(text) : 0); 4430910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 4440910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4450910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::insert(size_t offset, const char text[], size_t len) 4460910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 4470910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (len) 4480910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 4490910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project size_t length = fRec->fLength; 4500910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (offset > length) 4510910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project offset = length; 4520910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4530910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project /* If we're the only owner, and we have room in our allocation for the insert, 4540910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project do it in place, rather than allocating a new buffer. 4550910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4560910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project To know we have room, compare the allocated sizes 4570910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project beforeAlloc = SkAlign4(length + 1) 4580910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project afterAlloc = SkAligh4(length + 1 + len) 4590910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project but SkAlign4(x) is (x + 3) >> 2 << 2 4600910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project which is equivalent for testing to (length + 1 + 3) >> 2 == (length + 1 + 3 + len) >> 2 4610910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project and we can then eliminate the +1+3 since that doesn't affec the answer 4620910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project */ 4630910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (fRec->fRefCnt == 1 && (length >> 2) == ((length + len) >> 2)) 4640910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 4650910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* dst = this->writable_str(); 4660910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4670910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (offset < length) 4680910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project memmove(dst + offset + len, dst + offset, length - offset); 4690910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project memcpy(dst + offset, text, len); 4700910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4710910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project dst[length + len] = 0; 4720910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fRec->fLength = SkToU16(length + len); 4730910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 4740910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project else 4750910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 4760910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project /* Seems we should use realloc here, since that is safe if it fails 4770910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project (we have the original data), and might be faster than alloc/copy/free. 4780910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project */ 4790910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkString tmp(fRec->fLength + len); 4800910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* dst = tmp.writable_str(); 4810910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4820910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (offset > 0) 4830910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project memcpy(dst, fRec->data(), offset); 4840910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project memcpy(dst + offset, text, len); 4850910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (offset < fRec->fLength) 4860910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project memcpy(dst + offset + len, fRec->data() + offset, fRec->fLength - offset); 4870910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4880910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->swap(tmp); 4890910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 4900910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 4910910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 4920910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4930910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::insertUnichar(size_t offset, SkUnichar uni) 4940910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 4950910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char buffer[kMaxBytesInUTF8Sequence]; 4960910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project size_t len = SkUTF8_FromUnichar(uni, buffer); 4970910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 4980910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (len) 4990910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->insert(offset, buffer, len); 5000910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 5010910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5020910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::insertS32(size_t offset, int32_t dec) 5030910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 5040910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char buffer[SkStrAppendS32_MaxSize]; 5050910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* stop = SkStrAppendS32(buffer, dec); 5060910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->insert(offset, buffer, stop - buffer); 5070910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 5080910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 50940528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenbergervoid SkString::insertS64(size_t offset, int64_t dec, int minDigits) 51040528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger{ 51140528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger char buffer[SkStrAppendS64_MaxSize]; 51240528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger char* stop = SkStrAppendS64(buffer, dec, minDigits); 51340528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger this->insert(offset, buffer, stop - buffer); 51440528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger} 51540528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 5160910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::insertHex(size_t offset, uint32_t hex, int minDigits) 5170910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 5180910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project minDigits = SkPin32(minDigits, 0, 8); 51905b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger 5200910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project static const char gHex[] = "0123456789ABCDEF"; 5210910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5220910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char buffer[8]; 5230910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* p = buffer + sizeof(buffer); 5240910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5250910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project do { 5260910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project *--p = gHex[hex & 0xF]; 5270910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project hex >>= 4; 5280910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project minDigits -= 1; 5290910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } while (hex != 0); 5300910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project while (--minDigits >= 0) 5310910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project *--p = '0'; 5320910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5330910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(p >= buffer); 5340910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->insert(offset, p, buffer + sizeof(buffer) - p); 5350910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 5360910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5370910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::insertScalar(size_t offset, SkScalar value) 5380910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 5390910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char buffer[SkStrAppendScalar_MaxSize]; 5400910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* stop = SkStrAppendScalar(buffer, value); 5410910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->insert(offset, buffer, stop - buffer); 5420910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 5430910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5440910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::printf(const char format[], ...) { 5450910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char buffer[kBufferSize]; 5460910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project ARGS_TO_BUFFER(format, buffer, kBufferSize); 5470910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5480910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->set(buffer, strlen(buffer)); 5490910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 5500910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5510910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::appendf(const char format[], ...) { 5520910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char buffer[kBufferSize]; 5530910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project ARGS_TO_BUFFER(format, buffer, kBufferSize); 55405b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger 5550910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->append(buffer, strlen(buffer)); 5560910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 5570910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5580910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::prependf(const char format[], ...) { 5590910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char buffer[kBufferSize]; 5600910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project ARGS_TO_BUFFER(format, buffer, kBufferSize); 56105b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger 5620910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->prepend(buffer, strlen(buffer)); 5630910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 5640910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5650910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#undef VSNPRINTF 5660910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 56705b6b4d746867a9fb02e14edfe1bf3685abeb813Derek Sollenberger/////////////////////////////////////////////////////////////////////////////// 5680910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5690910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::remove(size_t offset, size_t length) 5700910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 5710910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project size_t size = this->size(); 5720910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5730910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (offset < size) 5740910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 5750910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (offset + length > size) 5760910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project length = size - offset; 5770910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (length > 0) 5780910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 5790910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(size > length); 5800910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkString tmp(size - length); 5810910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project char* dst = tmp.writable_str(); 5820910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project const char* src = this->c_str(); 5830910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 5840910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (offset) 5850910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 5860910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(offset <= tmp.size()); 5870910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project memcpy(dst, src, offset); 5880910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 5890910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project size_t tail = size - offset - length; 5900910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT((int32_t)tail >= 0); 5910910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (tail) 5920910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 5930910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project // SkASSERT(offset + length <= tmp.size()); 5940910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project memcpy(dst + offset, src + offset + length, tail); 5950910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 5960910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkASSERT(dst[tmp.size()] == 0); 5970910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->swap(tmp); 5980910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 5990910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 6000910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 6010910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 6020910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Projectvoid SkString::swap(SkString& other) 6030910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 6040910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project this->validate(); 6050910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project other.validate(); 6060910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 6070910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkTSwap<Rec*>(fRec, other.fRec); 6080910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#ifdef SK_DEBUG 6090910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkTSwap<const char*>(fStr, other.fStr); 6100910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project#endif 6110910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 6120910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 6130910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project///////////////////////////////////////////////////////////////////////////////// 6140910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 6150910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source ProjectSkAutoUCS2::SkAutoUCS2(const char utf8[]) 6160910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 6170910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project size_t len = strlen(utf8); 6180910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fUCS2 = (uint16_t*)sk_malloc_throw((len + 1) * sizeof(uint16_t)); 6190910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 6200910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project uint16_t* dst = fUCS2; 6210910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project for (;;) 6220910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project { 6230910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project SkUnichar uni = SkUTF8_NextUnichar(&utf8); 6240910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project *dst++ = SkToU16(uni); 6250910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project if (uni == 0) 6260910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project break; 6270910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project } 6280910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project fCount = (int)(dst - fUCS2); 6290910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 6300910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project 6310910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source ProjectSkAutoUCS2::~SkAutoUCS2() 6320910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project{ 6330910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project delete[] fUCS2; 6340910916c0f7b951ee55c4b7c6358295b9bca0565The Android Open Source Project} 635