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/*
* Copyright 2011 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkAdvancedTypefaceMetrics.h"
#include "SkTypeface.h"
#include "SkFontHost.h"
SK_DEFINE_INST_COUNT(SkTypeface)
//#define TRACE_LIFECYCLE
#ifdef TRACE_LIFECYCLE
static int32_t gTypefaceCounter;
#endif
SkTypeface::SkTypeface(Style style, SkFontID fontID, bool isFixedWidth)
: fUniqueID(fontID), fStyle(style), fIsFixedWidth(isFixedWidth) {
#ifdef TRACE_LIFECYCLE
SkDebugf("SkTypeface: create %p fontID %d total %d\n",
this, fontID, ++gTypefaceCounter);
#endif
}
SkTypeface::~SkTypeface() {
#ifdef TRACE_LIFECYCLE
SkDebugf("SkTypeface: destroy %p fontID %d total %d\n",
this, fUniqueID, --gTypefaceCounter);
#endif
}
///////////////////////////////////////////////////////////////////////////////
SkTypeface* SkTypeface::GetDefaultTypeface() {
// we keep a reference to this guy for all time, since if we return its
// fontID, the font cache may later on ask to resolve that back into a
// typeface object.
static SkTypeface* gDefaultTypeface;
if (NULL == gDefaultTypeface) {
gDefaultTypeface =
SkFontHost::CreateTypeface(NULL, NULL, SkTypeface::kNormal);
}
return gDefaultTypeface;
}
uint32_t SkTypeface::UniqueID(const SkTypeface* face) {
if (NULL == face) {
face = GetDefaultTypeface();
}
return face->uniqueID();
}
bool SkTypeface::Equal(const SkTypeface* facea, const SkTypeface* faceb) {
return SkTypeface::UniqueID(facea) == SkTypeface::UniqueID(faceb);
}
///////////////////////////////////////////////////////////////////////////////
SkTypeface* SkTypeface::CreateFromName(const char name[], Style style) {
return SkFontHost::CreateTypeface(NULL, name, style);
}
SkTypeface* SkTypeface::CreateFromTypeface(const SkTypeface* family, Style s) {
return SkFontHost::CreateTypeface(family, NULL, s);
}
SkTypeface* SkTypeface::CreateFromStream(SkStream* stream) {
return SkFontHost::CreateTypefaceFromStream(stream);
}
SkTypeface* SkTypeface::CreateFromFile(const char path[]) {
return SkFontHost::CreateTypefaceFromFile(path);
}
///////////////////////////////////////////////////////////////////////////////
void SkTypeface::serialize(SkWStream* stream) const {
SkFontHost::Serialize(this, stream);
}
SkTypeface* SkTypeface::Deserialize(SkStream* stream) {
return SkFontHost::Deserialize(stream);
}
SkAdvancedTypefaceMetrics* SkTypeface::getAdvancedTypefaceMetrics(
SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo,
const uint32_t* glyphIDs,
uint32_t glyphIDsCount) const {
return SkFontHost::GetAdvancedTypefaceMetrics(fUniqueID,
perGlyphInfo,
glyphIDs,
glyphIDsCount);
}
///////////////////////////////////////////////////////////////////////////////
int SkTypeface::countTables() const {
return SkFontHost::CountTables(fUniqueID);
}
int SkTypeface::getTableTags(SkFontTableTag tags[]) const {
return SkFontHost::GetTableTags(fUniqueID, tags);
}
size_t SkTypeface::getTableSize(SkFontTableTag tag) const {
return SkFontHost::GetTableSize(fUniqueID, tag);
}
size_t SkTypeface::getTableData(SkFontTableTag tag, size_t offset, size_t length,
void* data) const {
return SkFontHost::GetTableData(fUniqueID, tag, offset, length, data);
}
int SkTypeface::getUnitsPerEm() const {
int upem = 0;
#ifdef SK_BUILD_FOR_ANDROID
upem = SkFontHost::GetUnitsPerEm(fUniqueID);
#else
SkAdvancedTypefaceMetrics* metrics;
metrics = SkFontHost::GetAdvancedTypefaceMetrics(fUniqueID,
SkAdvancedTypefaceMetrics::kNo_PerGlyphInfo,
NULL, 0);
if (metrics) {
upem = metrics->fEmSize;
metrics->unref();
}
#endif
return upem;
}
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