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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "skia/ext/skia_utils_base.h"
namespace skia {
bool ReadSkString(base::PickleIterator* iter, SkString* str) {
int reply_length;
const char* reply_text;
if (!iter->ReadData(&reply_text, &reply_length))
return false;
if (str)
str->set(reply_text, reply_length);
return true;
}
bool ReadSkFontIdentity(base::PickleIterator* iter,
SkFontConfigInterface::FontIdentity* identity) {
uint32_t reply_id;
uint32_t reply_ttcIndex;
int reply_length;
const char* reply_text;
if (!iter->ReadUInt32(&reply_id) ||
!iter->ReadUInt32(&reply_ttcIndex) ||
!iter->ReadData(&reply_text, &reply_length))
return false;
if (identity) {
identity->fID = reply_id;
identity->fTTCIndex = reply_ttcIndex;
identity->fString.set(reply_text, reply_length);
}
return true;
}
bool WriteSkString(base::Pickle* pickle, const SkString& str) {
return pickle->WriteData(str.c_str(), str.size());
}
bool WriteSkFontIdentity(base::Pickle* pickle,
const SkFontConfigInterface::FontIdentity& identity) {
return pickle->WriteUInt32(identity.fID) &&
pickle->WriteUInt32(identity.fTTCIndex) &&
WriteSkString(pickle, identity.fString);
}
SkPixelGeometry ComputeDefaultPixelGeometry() {
SkFontHost::LCDOrder order = SkFontHost::GetSubpixelOrder();
if (SkFontHost::kNONE_LCDOrder == order) {
return kUnknown_SkPixelGeometry;
} else {
// Bit0 is RGB(0), BGR(1)
// Bit1 is H(0), V(1)
const SkPixelGeometry gGeo[] = {
kRGB_H_SkPixelGeometry,
kBGR_H_SkPixelGeometry,
kRGB_V_SkPixelGeometry,
kBGR_V_SkPixelGeometry,
};
int index = 0;
if (SkFontHost::kBGR_LCDOrder == order) {
index |= 1;
}
if (SkFontHost::kVertical_LCDOrientation == SkFontHost::GetSubpixelOrientation()){
index |= 2;
}
return gGeo[index];
}
}
} // namespace skia
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