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Commit 2ea169a2 authored by Seigo Nonaka's avatar Seigo Nonaka
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Introduce early exit path for non resource path. 

Developer can specify android:fontFamily with three ways, pre-defined
font family name, e.g. "sans-serif", path to the font file in resource
directory, e.g. "res/fonts/Roboto-Regular.ttf", or path to the XML font
family file, e.g. "res/fonts/Roboto.xml".

Resources.getFont treats font files and XML files but pre-defined family
name is handled by TextView. Thus, we can early exit if the passed value
is not likely resource path.

This improves the inflation performance.
The score without this patch:
gfx-avg-frame-time-50: 6.9
gfx-avg-frame-time-90: 9.4
gfx-avg-frame-time-95: 10.4
gfx-avg-frame-time-99: 16.7

The score with this patch:
gfx-avg-frame-time-50: 7.0
gfx-avg-frame-time-90: 8.9
gfx-avg-frame-time-95: 9.7
gfx-avg-frame-time-99: 16.5

Measured on bullhead-userdebug.

The APCT perf test improves from
String FontFamily: 200,086 -> 132,561
File FontFamily  : 199,256 -> 161,843
XML FontFamily   : 203,681 -> 158,553

Measured on angler-userdebug.

Bug: 38232467
Test: UiBenchmark
Change-Id: Ia601ae7207ae8c60848c9efdbb9396267a57257c
parent 9289faa1

apct-tests/perftests/core/res/font/samplefont.ttf

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apct-tests/perftests/core/res/font/samplefont_source.ttx

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<?xml version="1.0" encoding="UTF-8"?>

<!-- Copyright (C) 2017 The Android Open Source Project



     Licensed under the Apache License, Version 2.0 (the "License");

     you may not use this file except in compliance with the License.

     You may obtain a copy of the License at



          http://www.apache.org/licenses/LICENSE-2.0



     Unless required by applicable law or agreed to in writing, software

     distributed under the License is distributed on an "AS IS" BASIS

     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

     See the License for the specific language governing permissions and

     limitations under the License.

-->

<ttFont sfntVersion="\x00\x01\x00\x00" ttLibVersion="3.0">



  <GlyphOrder>

    <GlyphID id="0" name=".notdef"/>

    <GlyphID id="1" name="a"/>

  </GlyphOrder>



  <head>

    <tableVersion value="1.0"/>

    <fontRevision value="1.0"/>

    <checkSumAdjustment value="0x640cdb2f"/>

    <magicNumber value="0x5f0f3cf5"/>

    <flags value="00000000 00000011"/>

    <unitsPerEm value="1000"/>

    <created value="Fri Mar 17 07:26:00 2017"/>

    <macStyle value="00000000 00000000"/>

    <lowestRecPPEM value="7"/>

    <fontDirectionHint value="2"/>

    <glyphDataFormat value="0"/>

  </head>



  <hhea>

    <tableVersion value="1.0"/>

    <ascent value="1000"/>

    <descent value="-200"/>

    <lineGap value="0"/>

    <caretSlopeRise value="1"/>

    <caretSlopeRun value="0"/>

    <caretOffset value="0"/>

    <reserved0 value="0"/>

    <reserved1 value="0"/>

    <reserved2 value="0"/>

    <reserved3 value="0"/>

    <metricDataFormat value="0"/>

  </hhea>



  <maxp>

    <tableVersion value="0x10000"/>

    <maxZones value="0"/>

    <maxTwilightPoints value="0"/>

    <maxStorage value="0"/>

    <maxFunctionDefs value="0"/>

    <maxInstructionDefs value="0"/>

    <maxStackElements value="0"/>

    <maxSizeOfInstructions value="0"/>

    <maxComponentElements value="0"/>

  </maxp>



  <OS_2>

    <!-- The fields 'usFirstCharIndex' and 'usLastCharIndex'

         will be recalculated by the compiler -->

    <version value="3"/>

    <xAvgCharWidth value="594"/>

    <usWeightClass value="400"/>

    <usWidthClass value="5"/>

    <fsType value="00000000 00001000"/>

    <ySubscriptXSize value="650"/>

    <ySubscriptYSize value="600"/>

    <ySubscriptXOffset value="0"/>

    <ySubscriptYOffset value="75"/>

    <ySuperscriptXSize value="650"/>

    <ySuperscriptYSize value="600"/>

    <ySuperscriptXOffset value="0"/>

    <ySuperscriptYOffset value="350"/>

    <yStrikeoutSize value="50"/>

    <yStrikeoutPosition value="300"/>

    <sFamilyClass value="0"/>

    <panose>

      <bFamilyType value="0"/>

      <bSerifStyle value="0"/>

      <bWeight value="5"/>

      <bProportion value="0"/>

      <bContrast value="0"/>

      <bStrokeVariation value="0"/>

      <bArmStyle value="0"/>

      <bLetterForm value="0"/>

      <bMidline value="0"/>

      <bXHeight value="0"/>

    </panose>

    <ulUnicodeRange1 value="00000000 00000000 00000000 00000001"/>

    <ulUnicodeRange2 value="00000000 00000000 00000000 00000000"/>

    <ulUnicodeRange3 value="00000000 00000000 00000000 00000000"/>

    <ulUnicodeRange4 value="00000000 00000000 00000000 00000000"/>

    <achVendID value="UKWN"/>

    <fsSelection value="00000000 01000000"/>

    <usFirstCharIndex value="32"/>

    <usLastCharIndex value="122"/>

    <sTypoAscender value="800"/>

    <sTypoDescender value="-200"/>

    <sTypoLineGap value="200"/>

    <usWinAscent value="1000"/>

    <usWinDescent value="200"/>

    <ulCodePageRange1 value="00000000 00000000 00000000 00000001"/>

    <ulCodePageRange2 value="00000000 00000000 00000000 00000000"/>

    <sxHeight value="500"/>

    <sCapHeight value="700"/>

    <usDefaultChar value="0"/>

    <usBreakChar value="32"/>

    <usMaxContext value="0"/>

  </OS_2>



  <hmtx>

    <mtx name=".notdef" width="500" lsb="93"/>

    <mtx name="a" width="500" lsb="93"/>

  </hmtx>



  <cmap>

    <tableVersion version="0"/>

    <cmap_format_4 platformID="3" platEncID="10" language="0">

      <map code="0x0061" name="a" />

    </cmap_format_4>

  </cmap>



  <loca>

    <!-- The 'loca' table will be calculated by the compiler -->

  </loca>



  <glyf>

    <TTGlyph name=".notdef" xMin="0" yMin="0" xMax="0" yMax="0" />

    <TTGlyph name="a" xMin="0" yMin="0" xMax="0" yMax="0" />

  </glyf>



  <name>

    <namerecord nameID="1" platformID="1" platEncID="0" langID="0x0" unicode="True">

      Sample Font

    </namerecord>

    <namerecord nameID="2" platformID="1" platEncID="0" langID="0x0" unicode="True">

      Regular

    </namerecord>

    <namerecord nameID="4" platformID="1" platEncID="0" langID="0x0" unicode="True">

      Sample Font

    </namerecord>

    <namerecord nameID="6" platformID="1" platEncID="0" langID="0x0" unicode="True">

      SampleFont-Regular

    </namerecord>

    <namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">

      Sample Font

    </namerecord>

    <namerecord nameID="2" platformID="3" platEncID="1" langID="0x409">

      Regular

    </namerecord>

    <namerecord nameID="4" platformID="3" platEncID="1" langID="0x409">

      Sample Font

    </namerecord>

    <namerecord nameID="6" platformID="3" platEncID="1" langID="0x409">

      SampleFont-Regular

    </namerecord>

  </name>



  <post>

    <formatType value="3.0"/>

    <italicAngle value="0.0"/>

    <underlinePosition value="-75"/>

    <underlineThickness value="50"/>

    <isFixedPitch value="0"/>

    <minMemType42 value="0"/>

    <maxMemType42 value="0"/>

    <minMemType1 value="0"/>

    <maxMemType1 value="0"/>

  </post>



</ttFont>

apct-tests/perftests/core/res/font/samplexmlfont.xml

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<?xml version="1.0" encoding="utf-8"?>

<!--

 Copyright (C) 2017 The Android Open Source Project



     Licensed under the Apache License, Version 2.0 (the "License");

     you may not use this file except in compliance with the License.

     You may obtain a copy of the License at



          http://www.apache.org/licenses/LICENSE-2.0



     Unless required by applicable law or agreed to in writing, software

     distributed under the License is distributed on an "AS IS" BASIS,

     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

     See the License for the specific language governing permissions and

     limitations under the License

-->

<font-family xmlns:android="http://schemas.android.com/apk/res/android">

    <font android:font="@font/samplefont" />

</font-family>

apct-tests/perftests/core/res/layout/test_textview_font_family_file.xml

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Original line number Diff line number Diff line 
<!--

 Copyright (C) 2017 The Android Open Source Project



     Licensed under the Apache License, Version 2.0 (the "License");

     you may not use this file except in compliance with the License.

     You may obtain a copy of the License at



          http://www.apache.org/licenses/LICENSE-2.0



     Unless required by applicable law or agreed to in writing, software

     distributed under the License is distributed on an "AS IS" BASIS,

     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

     See the License for the specific language governing permissions and

     limitations under the License

-->

<TextView xmlns:android="http://schemas.android.com/apk/res/android"

          android:layout_width="100dp"

          android:layout_height="100dp"

          android:text="@string/short_text"

          android:fontFamily="@font/samplefont" />

apct-tests/perftests/core/res/layout/test_textview_font_family_string.xml

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Original line number Diff line number Diff line 
<!--

 Copyright (C) 2017 The Android Open Source Project



     Licensed under the Apache License, Version 2.0 (the "License");

     you may not use this file except in compliance with the License.

     You may obtain a copy of the License at



          http://www.apache.org/licenses/LICENSE-2.0



     Unless required by applicable law or agreed to in writing, software

     distributed under the License is distributed on an "AS IS" BASIS,

     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

     See the License for the specific language governing permissions and

     limitations under the License

-->

<TextView xmlns:android="http://schemas.android.com/apk/res/android"

          android:layout_width="100dp"

          android:layout_height="100dp"

          android:text="@string/short_text"

          android:fontFamily="sans-serif" />