The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/core/SkFlattenable.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,145 @@
     1.4 +
     1.5 +/*
     1.6 + * Copyright 2011 Google Inc.
     1.7 + *
     1.8 + * Use of this source code is governed by a BSD-style license that can be
     1.9 + * found in the LICENSE file.
    1.10 + */
    1.11 +#include "SkFlattenable.h"
    1.12 +#include "SkPtrRecorder.h"
    1.13 +
    1.14 +///////////////////////////////////////////////////////////////////////////////
    1.15 +
    1.16 +void SkFlattenable::flatten(SkWriteBuffer&) const
    1.17 +{
    1.18 +    /*  we don't write anything at the moment, but this allows our subclasses
    1.19 +        to not know that, since we want them to always call INHERITED::flatten()
    1.20 +        in their code.
    1.21 +    */
    1.22 +}
    1.23 +
    1.24 +///////////////////////////////////////////////////////////////////////////////
    1.25 +
    1.26 +SkNamedFactorySet::SkNamedFactorySet() : fNextAddedFactory(0) {}
    1.27 +
    1.28 +uint32_t SkNamedFactorySet::find(SkFlattenable::Factory factory) {
    1.29 +    uint32_t index = fFactorySet.find(factory);
    1.30 +    if (index > 0) {
    1.31 +        return index;
    1.32 +    }
    1.33 +    const char* name = SkFlattenable::FactoryToName(factory);
    1.34 +    if (NULL == name) {
    1.35 +        return 0;
    1.36 +    }
    1.37 +    *fNames.append() = name;
    1.38 +    return fFactorySet.add(factory);
    1.39 +}
    1.40 +
    1.41 +const char* SkNamedFactorySet::getNextAddedFactoryName() {
    1.42 +    if (fNextAddedFactory < fNames.count()) {
    1.43 +        return fNames[fNextAddedFactory++];
    1.44 +    }
    1.45 +    return NULL;
    1.46 +}
    1.47 +
    1.48 +///////////////////////////////////////////////////////////////////////////////
    1.49 +
    1.50 +SkRefCntSet::~SkRefCntSet() {
    1.51 +    // call this now, while our decPtr() is sill in scope
    1.52 +    this->reset();
    1.53 +}
    1.54 +
    1.55 +void SkRefCntSet::incPtr(void* ptr) {
    1.56 +    ((SkRefCnt*)ptr)->ref();
    1.57 +}
    1.58 +
    1.59 +void SkRefCntSet::decPtr(void* ptr) {
    1.60 +    ((SkRefCnt*)ptr)->unref();
    1.61 +}
    1.62 +
    1.63 +///////////////////////////////////////////////////////////////////////////////
    1.64 +///////////////////////////////////////////////////////////////////////////////
    1.65 +///////////////////////////////////////////////////////////////////////////////
    1.66 +
    1.67 +#define MAX_ENTRY_COUNT  1024
    1.68 +
    1.69 +struct Entry {
    1.70 +    const char*             fName;
    1.71 +    SkFlattenable::Factory  fFactory;
    1.72 +    SkFlattenable::Type     fType;
    1.73 +};
    1.74 +
    1.75 +static int gCount;
    1.76 +static Entry gEntries[MAX_ENTRY_COUNT];
    1.77 +
    1.78 +void SkFlattenable::Register(const char name[], Factory factory, SkFlattenable::Type type) {
    1.79 +    SkASSERT(name);
    1.80 +    SkASSERT(factory);
    1.81 +
    1.82 +    static bool gOnce = false;
    1.83 +    if (!gOnce) {
    1.84 +        gCount = 0;
    1.85 +        gOnce = true;
    1.86 +    }
    1.87 +
    1.88 +    SkASSERT(gCount < MAX_ENTRY_COUNT);
    1.89 +
    1.90 +    gEntries[gCount].fName = name;
    1.91 +    gEntries[gCount].fFactory = factory;
    1.92 +    gEntries[gCount].fType = type;
    1.93 +    gCount += 1;
    1.94 +}
    1.95 +
    1.96 +#ifdef SK_DEBUG
    1.97 +static void report_no_entries(const char* functionName) {
    1.98 +    if (!gCount) {
    1.99 +        SkDebugf("%s has no registered name/factory/type entries."
   1.100 +                 " Call SkFlattenable::InitializeFlattenablesIfNeeded() before using gEntries",
   1.101 +                 functionName);
   1.102 +    }
   1.103 +}
   1.104 +#endif
   1.105 +
   1.106 +SkFlattenable::Factory SkFlattenable::NameToFactory(const char name[]) {
   1.107 +    InitializeFlattenablesIfNeeded();
   1.108 +#ifdef SK_DEBUG
   1.109 +    report_no_entries(__FUNCTION__);
   1.110 +#endif
   1.111 +    const Entry* entries = gEntries;
   1.112 +    for (int i = gCount - 1; i >= 0; --i) {
   1.113 +        if (strcmp(entries[i].fName, name) == 0) {
   1.114 +            return entries[i].fFactory;
   1.115 +        }
   1.116 +    }
   1.117 +    return NULL;
   1.118 +}
   1.119 +
   1.120 +bool SkFlattenable::NameToType(const char name[], SkFlattenable::Type* type) {
   1.121 +    SkASSERT(NULL != type);
   1.122 +    InitializeFlattenablesIfNeeded();
   1.123 +#ifdef SK_DEBUG
   1.124 +    report_no_entries(__FUNCTION__);
   1.125 +#endif
   1.126 +    const Entry* entries = gEntries;
   1.127 +    for (int i = gCount - 1; i >= 0; --i) {
   1.128 +        if (strcmp(entries[i].fName, name) == 0) {
   1.129 +            *type = entries[i].fType;
   1.130 +            return true;
   1.131 +        }
   1.132 +    }
   1.133 +    return false;
   1.134 +}
   1.135 +
   1.136 +const char* SkFlattenable::FactoryToName(Factory fact) {
   1.137 +    InitializeFlattenablesIfNeeded();
   1.138 +#ifdef SK_DEBUG
   1.139 +    report_no_entries(__FUNCTION__);
   1.140 +#endif
   1.141 +    const Entry* entries = gEntries;
   1.142 +    for (int i = gCount - 1; i >= 0; --i) {
   1.143 +        if (entries[i].fFactory == fact) {
   1.144 +            return entries[i].fName;
   1.145 +        }
   1.146 +    }
   1.147 +    return NULL;
   1.148 +}