The Tor Browser: other-licenses/skia-npapi/ANPTypeface.cpp@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /*

     2  * Copyright 2008, The Android Open Source Project

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  *  * Redistributions of source code must retain the above copyright

     8  *    notice, this list of conditions and the following disclaimer.

     9  *  * Redistributions in binary form must reproduce the above copyright

    10  *    notice, this list of conditions and the following disclaimer in the

    11  *    documentation and/or other materials provided with the distribution.

    12  *

    13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY

    14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

    17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    24  */

    26 // must include config.h first for webkit to fiddle with new/delete

    27 #include "SkANP.h"

    28 #include "SkFontHost.h"

    29 #include "SkStream.h"

    31 static ANPTypeface* anp_createFromName(const char name[], ANPTypefaceStyle s) {

    32     SkTypeface* tf = SkTypeface::CreateFromName(name,

    33                                         static_cast<SkTypeface::Style>(s));

    34     return reinterpret_cast<ANPTypeface*>(tf);

    35 }

    37 static ANPTypeface* anp_createFromTypeface(const ANPTypeface* family,

    38                                            ANPTypefaceStyle s) {

    39     SkTypeface* tf = SkTypeface::CreateFromTypeface(family,

    40                                           static_cast<SkTypeface::Style>(s));

    41     return reinterpret_cast<ANPTypeface*>(tf);

    42 }

    44 static int32_t anp_getRefCount(const ANPTypeface* tf) {

    45     return tf ? tf->getRefCnt() : 0;

    46 }

    48 static void anp_ref(ANPTypeface* tf) {

    49     SkSafeRef(tf);

    50 }

    52 static void anp_unref(ANPTypeface* tf) {

    53     SkSafeUnref(tf);

    54 }

    56 static ANPTypefaceStyle anp_getStyle(const ANPTypeface* tf) {

    57     SkTypeface::Style s = tf ? tf->style() : SkTypeface::kNormal;

    58     return static_cast<ANPTypefaceStyle>(s);

    59 }

    61 static int32_t anp_getFontPath(const ANPTypeface* tf, char fileName[],

    62                                int32_t length, int32_t* index) {

    63     SkStream* stream = tf->openStream(index);

    65     return 0;

    66     /*

    67     if (stream->getFileName()) {

    68       strcpy(fileName, stream->getFileName());

    69     } else {

    70       return 0;

    71     }

    73     return strlen(fileName);

    74     */

    75 }

    77 static const char* gFontDir;

    78 #define FONT_DIR_SUFFIX     "/fonts/"

    80 static const char* anp_getFontDirectoryPath() {

    81     if (NULL == gFontDir) {

    82         const char* root = getenv("ANDROID_ROOT");

    83         size_t len = strlen(root);

    84         char* storage = (char*)malloc(len + sizeof(FONT_DIR_SUFFIX));

    85         if (NULL == storage) {

    86             return NULL;

    87         }

    88         memcpy(storage, root, len);

    89         memcpy(storage + len, FONT_DIR_SUFFIX, sizeof(FONT_DIR_SUFFIX));

    90         // save this assignment for last, so that if multiple threads call us

    91         // (which should never happen), we never return an incomplete global.

    92         // At worst, we would allocate storage for the path twice.

    93         gFontDir = storage;

    94     }

    95     return gFontDir;

    96 }

    98 ///////////////////////////////////////////////////////////////////////////////

   100 #define ASSIGN(obj, name)   (obj)->name = anp_##name

   102 void InitTypeFaceInterface(ANPTypefaceInterfaceV0* i) {

   103     ASSIGN(i, createFromName);

   104     ASSIGN(i, createFromTypeface);

   105     ASSIGN(i, getRefCount);

   106     ASSIGN(i, ref);

   107     ASSIGN(i, unref);

   108     ASSIGN(i, getStyle);

   109     ASSIGN(i, getFontPath);

   110     ASSIGN(i, getFontDirectoryPath);

   111 }

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