gecko-dev/other-licenses/skia-npapi/ANPTypeface.cpp

103 строки
3.8 KiB
C++

/*
* Copyright 2008, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// must include config.h first for webkit to fiddle with new/delete
#include "SkANP.h"
#include "SkFontHost.h"
#include "SkStream.h"
static ANPTypeface* anp_createFromName(const char name[], ANPTypefaceStyle s) {
SkTypeface* tf = SkTypeface::CreateFromName(name,
static_cast<SkTypeface::Style>(s));
return reinterpret_cast<ANPTypeface*>(tf);
}
static ANPTypeface* anp_createFromTypeface(const ANPTypeface* family,
ANPTypefaceStyle s) {
SkTypeface* tf = SkTypeface::CreateFromTypeface(family,
static_cast<SkTypeface::Style>(s));
return reinterpret_cast<ANPTypeface*>(tf);
}
static int32_t anp_getRefCount(const ANPTypeface* tf) {
return tf ? tf->getRefCnt() : 0;
}
static void anp_ref(ANPTypeface* tf) {
SkSafeRef(tf);
}
static void anp_unref(ANPTypeface* tf) {
SkSafeUnref(tf);
}
static ANPTypefaceStyle anp_getStyle(const ANPTypeface* tf) {
SkTypeface::Style s = tf ? tf->style() : SkTypeface::kNormal;
return static_cast<ANPTypefaceStyle>(s);
}
static int32_t anp_getFontPath(const ANPTypeface* tf, char fileName[],
int32_t length, int32_t* index) {
SkStream* stream = tf->openStream(index);
strcpy(fileName, stream->getFileName());
return strlen(fileName);
}
static const char* gFontDir;
#define FONT_DIR_SUFFIX "/fonts/"
static const char* anp_getFontDirectoryPath() {
if (NULL == gFontDir) {
const char* root = getenv("ANDROID_ROOT");
size_t len = strlen(root);
char* storage = (char*)malloc(len + sizeof(FONT_DIR_SUFFIX));
if (NULL == storage) {
return NULL;
}
memcpy(storage, root, len);
memcpy(storage + len, FONT_DIR_SUFFIX, sizeof(FONT_DIR_SUFFIX));
// save this assignment for last, so that if multiple threads call us
// (which should never happen), we never return an incomplete global.
// At worst, we would allocate storage for the path twice.
gFontDir = storage;
}
return gFontDir;
}
///////////////////////////////////////////////////////////////////////////////
#define ASSIGN(obj, name) (obj)->name = anp_##name
void InitTypeFaceInterface(ANPTypefaceInterfaceV0* i) {
ASSIGN(i, createFromName);
ASSIGN(i, createFromTypeface);
ASSIGN(i, getRefCount);
ASSIGN(i, ref);
ASSIGN(i, unref);
ASSIGN(i, getStyle);
ASSIGN(i, getFontPath);
ASSIGN(i, getFontDirectoryPath);
}