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android_frameworks_base/tools/aapt2/ConfigDescription.cpp
Alexandria Cornwall 77788eb4cf AAPT2: Add dominator tree analysis and resource removal 
Added dominator tree analysis of resource configurations for each
resource entry to allow deduping of resource entries if:

1. The configuration for the resource entry's value is dominated by
a configuration with an equivalent entry value.

2. All compatible configurations for the entry (those not in conflict
and unrelated by domination with the configuration for the entry's
value) have an equivalent entry value.

Bug: 30051199
Test: make libaapt2_tests && libaapt2_tests
Change-Id: I66468d3014a2d6097a94b039ac1028f9f461c7d3
2016-09-30 18:27:13 -07:00

885 lines
26 KiB
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/*
* Copyright (C) 2015 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.
*/
#include "ConfigDescription.h"
#include "Locale.h"
#include "SdkConstants.h"
#include "util/StringPiece.h"
#include "util/Util.h"
#include <androidfw/ResourceTypes.h>
#include <string>
#include <vector>
namespace aapt {
using android::ResTable_config;
static const char* kWildcardName = "any";
const ConfigDescription& ConfigDescription::defaultConfig() {
static ConfigDescription config = {};
return config;
}
static bool parseMcc(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->mcc = 0;
return true;
}
const char* c = name;
if (tolower(*c) != 'm') return false;
c++;
if (tolower(*c) != 'c') return false;
c++;
if (tolower(*c) != 'c') return false;
c++;
const char* val = c;
while (*c >= '0' && *c <= '9') {
c++;
}
if (*c != 0) return false;
if (c-val != 3) return false;
int d = atoi(val);
if (d != 0) {
if (out) out->mcc = d;
return true;
}
return false;
}
static bool parseMnc(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->mcc = 0;
return true;
}
const char* c = name;
if (tolower(*c) != 'm') return false;
c++;
if (tolower(*c) != 'n') return false;
c++;
if (tolower(*c) != 'c') return false;
c++;
const char* val = c;
while (*c >= '0' && *c <= '9') {
c++;
}
if (*c != 0) return false;
if (c-val == 0 || c-val > 3) return false;
if (out) {
out->mnc = atoi(val);
if (out->mnc == 0) {
out->mnc = ACONFIGURATION_MNC_ZERO;
}
}
return true;
}
static bool parseLayoutDirection(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->screenLayout =
(out->screenLayout&~ResTable_config::MASK_LAYOUTDIR)
| ResTable_config::LAYOUTDIR_ANY;
return true;
} else if (strcmp(name, "ldltr") == 0) {
if (out) out->screenLayout =
(out->screenLayout&~ResTable_config::MASK_LAYOUTDIR)
| ResTable_config::LAYOUTDIR_LTR;
return true;
} else if (strcmp(name, "ldrtl") == 0) {
if (out) out->screenLayout =
(out->screenLayout&~ResTable_config::MASK_LAYOUTDIR)
| ResTable_config::LAYOUTDIR_RTL;
return true;
}
return false;
}
static bool parseScreenLayoutSize(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->screenLayout =
(out->screenLayout&~ResTable_config::MASK_SCREENSIZE)
| ResTable_config::SCREENSIZE_ANY;
return true;
} else if (strcmp(name, "small") == 0) {
if (out) out->screenLayout =
(out->screenLayout&~ResTable_config::MASK_SCREENSIZE)
| ResTable_config::SCREENSIZE_SMALL;
return true;
} else if (strcmp(name, "normal") == 0) {
if (out) out->screenLayout =
(out->screenLayout&~ResTable_config::MASK_SCREENSIZE)
| ResTable_config::SCREENSIZE_NORMAL;
return true;
} else if (strcmp(name, "large") == 0) {
if (out) out->screenLayout =
(out->screenLayout&~ResTable_config::MASK_SCREENSIZE)
| ResTable_config::SCREENSIZE_LARGE;
return true;
} else if (strcmp(name, "xlarge") == 0) {
if (out) out->screenLayout =
(out->screenLayout&~ResTable_config::MASK_SCREENSIZE)
| ResTable_config::SCREENSIZE_XLARGE;
return true;
}
return false;
}
static bool parseScreenLayoutLong(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->screenLayout =
(out->screenLayout&~ResTable_config::MASK_SCREENLONG)
| ResTable_config::SCREENLONG_ANY;
return true;
} else if (strcmp(name, "long") == 0) {
if (out) out->screenLayout =
(out->screenLayout&~ResTable_config::MASK_SCREENLONG)
| ResTable_config::SCREENLONG_YES;
return true;
} else if (strcmp(name, "notlong") == 0) {
if (out) out->screenLayout =
(out->screenLayout&~ResTable_config::MASK_SCREENLONG)
| ResTable_config::SCREENLONG_NO;
return true;
}
return false;
}
static bool parseScreenRound(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->screenLayout2 =
(out->screenLayout2&~ResTable_config::MASK_SCREENROUND)
| ResTable_config::SCREENROUND_ANY;
return true;
} else if (strcmp(name, "round") == 0) {
if (out) out->screenLayout2 =
(out->screenLayout2&~ResTable_config::MASK_SCREENROUND)
| ResTable_config::SCREENROUND_YES;
return true;
} else if (strcmp(name, "notround") == 0) {
if (out) out->screenLayout2 =
(out->screenLayout2&~ResTable_config::MASK_SCREENROUND)
| ResTable_config::SCREENROUND_NO;
return true;
}
return false;
}
static bool parseOrientation(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->orientation = out->ORIENTATION_ANY;
return true;
} else if (strcmp(name, "port") == 0) {
if (out) out->orientation = out->ORIENTATION_PORT;
return true;
} else if (strcmp(name, "land") == 0) {
if (out) out->orientation = out->ORIENTATION_LAND;
return true;
} else if (strcmp(name, "square") == 0) {
if (out) out->orientation = out->ORIENTATION_SQUARE;
return true;
}
return false;
}
static bool parseUiModeType(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->uiMode =
(out->uiMode&~ResTable_config::MASK_UI_MODE_TYPE)
| ResTable_config::UI_MODE_TYPE_ANY;
return true;
} else if (strcmp(name, "desk") == 0) {
if (out) out->uiMode =
(out->uiMode&~ResTable_config::MASK_UI_MODE_TYPE)
| ResTable_config::UI_MODE_TYPE_DESK;
return true;
} else if (strcmp(name, "car") == 0) {
if (out) out->uiMode =
(out->uiMode&~ResTable_config::MASK_UI_MODE_TYPE)
| ResTable_config::UI_MODE_TYPE_CAR;
return true;
} else if (strcmp(name, "television") == 0) {
if (out) out->uiMode =
(out->uiMode&~ResTable_config::MASK_UI_MODE_TYPE)
| ResTable_config::UI_MODE_TYPE_TELEVISION;
return true;
} else if (strcmp(name, "appliance") == 0) {
if (out) out->uiMode =
(out->uiMode&~ResTable_config::MASK_UI_MODE_TYPE)
| ResTable_config::UI_MODE_TYPE_APPLIANCE;
return true;
} else if (strcmp(name, "watch") == 0) {
if (out) out->uiMode =
(out->uiMode&~ResTable_config::MASK_UI_MODE_TYPE)
| ResTable_config::UI_MODE_TYPE_WATCH;
return true;
}
return false;
}
static bool parseUiModeNight(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->uiMode =
(out->uiMode&~ResTable_config::MASK_UI_MODE_NIGHT)
| ResTable_config::UI_MODE_NIGHT_ANY;
return true;
} else if (strcmp(name, "night") == 0) {
if (out) out->uiMode =
(out->uiMode&~ResTable_config::MASK_UI_MODE_NIGHT)
| ResTable_config::UI_MODE_NIGHT_YES;
return true;
} else if (strcmp(name, "notnight") == 0) {
if (out) out->uiMode =
(out->uiMode&~ResTable_config::MASK_UI_MODE_NIGHT)
| ResTable_config::UI_MODE_NIGHT_NO;
return true;
}
return false;
}
static bool parseDensity(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->density = ResTable_config::DENSITY_DEFAULT;
return true;
}
if (strcmp(name, "anydpi") == 0) {
if (out) out->density = ResTable_config::DENSITY_ANY;
return true;
}
if (strcmp(name, "nodpi") == 0) {
if (out) out->density = ResTable_config::DENSITY_NONE;
return true;
}
if (strcmp(name, "ldpi") == 0) {
if (out) out->density = ResTable_config::DENSITY_LOW;
return true;
}
if (strcmp(name, "mdpi") == 0) {
if (out) out->density = ResTable_config::DENSITY_MEDIUM;
return true;
}
if (strcmp(name, "tvdpi") == 0) {
if (out) out->density = ResTable_config::DENSITY_TV;
return true;
}
if (strcmp(name, "hdpi") == 0) {
if (out) out->density = ResTable_config::DENSITY_HIGH;
return true;
}
if (strcmp(name, "xhdpi") == 0) {
if (out) out->density = ResTable_config::DENSITY_XHIGH;
return true;
}
if (strcmp(name, "xxhdpi") == 0) {
if (out) out->density = ResTable_config::DENSITY_XXHIGH;
return true;
}
if (strcmp(name, "xxxhdpi") == 0) {
if (out) out->density = ResTable_config::DENSITY_XXXHIGH;
return true;
}
char* c = (char*)name;
while (*c >= '0' && *c <= '9') {
c++;
}
// check that we have 'dpi' after the last digit.
if (toupper(c[0]) != 'D' ||
toupper(c[1]) != 'P' ||
toupper(c[2]) != 'I' ||
c[3] != 0) {
return false;
}
// temporarily replace the first letter with \0 to
// use atoi.
char tmp = c[0];
c[0] = '\0';
int d = atoi(name);
c[0] = tmp;
if (d != 0) {
if (out) out->density = d;
return true;
}
return false;
}
static bool parseTouchscreen(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->touchscreen = out->TOUCHSCREEN_ANY;
return true;
} else if (strcmp(name, "notouch") == 0) {
if (out) out->touchscreen = out->TOUCHSCREEN_NOTOUCH;
return true;
} else if (strcmp(name, "stylus") == 0) {
if (out) out->touchscreen = out->TOUCHSCREEN_STYLUS;
return true;
} else if (strcmp(name, "finger") == 0) {
if (out) out->touchscreen = out->TOUCHSCREEN_FINGER;
return true;
}
return false;
}
static bool parseKeysHidden(const char* name, ResTable_config* out) {
uint8_t mask = 0;
uint8_t value = 0;
if (strcmp(name, kWildcardName) == 0) {
mask = ResTable_config::MASK_KEYSHIDDEN;
value = ResTable_config::KEYSHIDDEN_ANY;
} else if (strcmp(name, "keysexposed") == 0) {
mask = ResTable_config::MASK_KEYSHIDDEN;
value = ResTable_config::KEYSHIDDEN_NO;
} else if (strcmp(name, "keyshidden") == 0) {
mask = ResTable_config::MASK_KEYSHIDDEN;
value = ResTable_config::KEYSHIDDEN_YES;
} else if (strcmp(name, "keyssoft") == 0) {
mask = ResTable_config::MASK_KEYSHIDDEN;
value = ResTable_config::KEYSHIDDEN_SOFT;
}
if (mask != 0) {
if (out) out->inputFlags = (out->inputFlags&~mask) | value;
return true;
}
return false;
}
static bool parseKeyboard(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->keyboard = out->KEYBOARD_ANY;
return true;
} else if (strcmp(name, "nokeys") == 0) {
if (out) out->keyboard = out->KEYBOARD_NOKEYS;
return true;
} else if (strcmp(name, "qwerty") == 0) {
if (out) out->keyboard = out->KEYBOARD_QWERTY;
return true;
} else if (strcmp(name, "12key") == 0) {
if (out) out->keyboard = out->KEYBOARD_12KEY;
return true;
}
return false;
}
static bool parseNavHidden(const char* name, ResTable_config* out) {
uint8_t mask = 0;
uint8_t value = 0;
if (strcmp(name, kWildcardName) == 0) {
mask = ResTable_config::MASK_NAVHIDDEN;
value = ResTable_config::NAVHIDDEN_ANY;
} else if (strcmp(name, "navexposed") == 0) {
mask = ResTable_config::MASK_NAVHIDDEN;
value = ResTable_config::NAVHIDDEN_NO;
} else if (strcmp(name, "navhidden") == 0) {
mask = ResTable_config::MASK_NAVHIDDEN;
value = ResTable_config::NAVHIDDEN_YES;
}
if (mask != 0) {
if (out) out->inputFlags = (out->inputFlags&~mask) | value;
return true;
}
return false;
}
static bool parseNavigation(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) out->navigation = out->NAVIGATION_ANY;
return true;
} else if (strcmp(name, "nonav") == 0) {
if (out) out->navigation = out->NAVIGATION_NONAV;
return true;
} else if (strcmp(name, "dpad") == 0) {
if (out) out->navigation = out->NAVIGATION_DPAD;
return true;
} else if (strcmp(name, "trackball") == 0) {
if (out) out->navigation = out->NAVIGATION_TRACKBALL;
return true;
} else if (strcmp(name, "wheel") == 0) {
if (out) out->navigation = out->NAVIGATION_WHEEL;
return true;
}
return false;
}
static bool parseScreenSize(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) {
out->screenWidth = out->SCREENWIDTH_ANY;
out->screenHeight = out->SCREENHEIGHT_ANY;
}
return true;
}
const char* x = name;
while (*x >= '0' && *x <= '9') x++;
if (x == name || *x != 'x') return false;
std::string xName(name, x-name);
x++;
const char* y = x;
while (*y >= '0' && *y <= '9') y++;
if (y == name || *y != 0) return false;
std::string yName(x, y-x);
uint16_t w = (uint16_t)atoi(xName.c_str());
uint16_t h = (uint16_t)atoi(yName.c_str());
if (w < h) {
return false;
}
if (out) {
out->screenWidth = w;
out->screenHeight = h;
}
return true;
}
static bool parseSmallestScreenWidthDp(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) {
out->smallestScreenWidthDp = out->SCREENWIDTH_ANY;
}
return true;
}
if (*name != 's') return false;
name++;
if (*name != 'w') return false;
name++;
const char* x = name;
while (*x >= '0' && *x <= '9') x++;
if (x == name || x[0] != 'd' || x[1] != 'p' || x[2] != 0) return false;
std::string xName(name, x-name);
if (out) {
out->smallestScreenWidthDp = (uint16_t)atoi(xName.c_str());
}
return true;
}
static bool parseScreenWidthDp(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) {
out->screenWidthDp = out->SCREENWIDTH_ANY;
}
return true;
}
if (*name != 'w') return false;
name++;
const char* x = name;
while (*x >= '0' && *x <= '9') x++;
if (x == name || x[0] != 'd' || x[1] != 'p' || x[2] != 0) return false;
std::string xName(name, x-name);
if (out) {
out->screenWidthDp = (uint16_t)atoi(xName.c_str());
}
return true;
}
static bool parseScreenHeightDp(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) {
out->screenHeightDp = out->SCREENWIDTH_ANY;
}
return true;
}
if (*name != 'h') return false;
name++;
const char* x = name;
while (*x >= '0' && *x <= '9') x++;
if (x == name || x[0] != 'd' || x[1] != 'p' || x[2] != 0) return false;
std::string xName(name, x-name);
if (out) {
out->screenHeightDp = (uint16_t)atoi(xName.c_str());
}
return true;
}
static bool parseVersion(const char* name, ResTable_config* out) {
if (strcmp(name, kWildcardName) == 0) {
if (out) {
out->sdkVersion = out->SDKVERSION_ANY;
out->minorVersion = out->MINORVERSION_ANY;
}
return true;
}
if (*name != 'v') {
return false;
}
name++;
const char* s = name;
while (*s >= '0' && *s <= '9') s++;
if (s == name || *s != 0) return false;
std::string sdkName(name, s-name);
if (out) {
out->sdkVersion = (uint16_t)atoi(sdkName.c_str());
out->minorVersion = 0;
}
return true;
}
bool ConfigDescription::parse(const StringPiece& str, ConfigDescription* out) {
std::vector<std::string> parts = util::splitAndLowercase(str, '-');
ConfigDescription config;
ssize_t partsConsumed = 0;
LocaleValue locale;
const auto partsEnd = parts.end();
auto partIter = parts.begin();
if (str.size() == 0) {
goto success;
}
if (parseMcc(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseMnc(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
// Locale spans a few '-' separators, so we let it
// control the index.
partsConsumed = locale.initFromParts(partIter, partsEnd);
if (partsConsumed < 0) {
return false;
} else {
locale.writeTo(&config);
partIter += partsConsumed;
if (partIter == partsEnd) {
goto success;
}
}
if (parseLayoutDirection(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseSmallestScreenWidthDp(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseScreenWidthDp(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseScreenHeightDp(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseScreenLayoutSize(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseScreenLayoutLong(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseScreenRound(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseOrientation(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseUiModeType(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseUiModeNight(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseDensity(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseTouchscreen(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseKeysHidden(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseKeyboard(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseNavHidden(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseNavigation(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseScreenSize(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
if (parseVersion(partIter->c_str(), &config)) {
++partIter;
if (partIter == partsEnd) {
goto success;
}
}
// Unrecognized.
return false;
success:
if (out != NULL) {
applyVersionForCompatibility(&config);
*out = config;
}
return true;
}
void ConfigDescription::applyVersionForCompatibility(ConfigDescription* config) {
uint16_t minSdk = 0;
if (config->screenLayout2 & ResTable_config::MASK_SCREENROUND) {
minSdk = SDK_MARSHMALLOW;
} else if (config->density == ResTable_config::DENSITY_ANY) {
minSdk = SDK_LOLLIPOP;
} else if (config->smallestScreenWidthDp != ResTable_config::SCREENWIDTH_ANY
|| config->screenWidthDp != ResTable_config::SCREENWIDTH_ANY
|| config->screenHeightDp != ResTable_config::SCREENHEIGHT_ANY) {
minSdk = SDK_HONEYCOMB_MR2;
} else if ((config->uiMode & ResTable_config::MASK_UI_MODE_TYPE)
!= ResTable_config::UI_MODE_TYPE_ANY
|| (config->uiMode & ResTable_config::MASK_UI_MODE_NIGHT)
!= ResTable_config::UI_MODE_NIGHT_ANY) {
minSdk = SDK_FROYO;
} else if ((config->screenLayout & ResTable_config::MASK_SCREENSIZE)
!= ResTable_config::SCREENSIZE_ANY
|| (config->screenLayout & ResTable_config::MASK_SCREENLONG)
!= ResTable_config::SCREENLONG_ANY
|| config->density != ResTable_config::DENSITY_DEFAULT) {
minSdk = SDK_DONUT;
}
if (minSdk > config->sdkVersion) {
config->sdkVersion = minSdk;
}
}
ConfigDescription ConfigDescription::copyWithoutSdkVersion() const {
ConfigDescription copy = *this;
copy.sdkVersion = 0;
return copy;
}
bool ConfigDescription::dominates(const ConfigDescription& o) const {
if (*this == defaultConfig() || *this == o) {
return true;
}
return matchWithDensity(o)
&& !o.matchWithDensity(*this)
&& !isMoreSpecificThan(o)
&& !o.hasHigherPrecedenceThan(*this);
}
bool ConfigDescription::hasHigherPrecedenceThan(const ConfigDescription& o) const {
// The order of the following tests defines the importance of one
// configuration parameter over another. Those tests first are more
// important, trumping any values in those following them.
// The ordering should be the same as ResTable_config#isBetterThan.
if (mcc || o.mcc) return (!o.mcc);
if (mnc || o.mnc) return (!o.mnc);
if (language[0] || o.language[0]) return (!o.language[0]);
if (country[0] || o.country[0]) return (!o.country[0]);
// Script and variant require either a language or country, both of which
// have higher precedence.
if ((screenLayout | o.screenLayout) & MASK_LAYOUTDIR) {
return !(o.screenLayout & MASK_LAYOUTDIR);
}
if (smallestScreenWidthDp || o.smallestScreenWidthDp) return (!o.smallestScreenWidthDp);
if (screenWidthDp || o.screenWidthDp) return (!o.screenWidthDp);
if (screenHeightDp || o.screenHeightDp) return (!o.screenHeightDp);
if ((screenLayout | o.screenLayout) & MASK_SCREENSIZE) {
return !(o.screenLayout & MASK_SCREENSIZE);
}
if ((screenLayout | o.screenLayout) & MASK_SCREENLONG) {
return !(o.screenLayout & MASK_SCREENLONG);
}
if ((screenLayout2 | o.screenLayout2) & MASK_SCREENROUND) {
return !(o.screenLayout2 & MASK_SCREENROUND);
}
if (orientation || o.orientation) return (!o.orientation);
if ((uiMode | o.uiMode) & MASK_UI_MODE_TYPE) {
return !(o.uiMode & MASK_UI_MODE_TYPE);
}
if ((uiMode | o.uiMode) & MASK_UI_MODE_NIGHT) {
return !(o.uiMode & MASK_UI_MODE_NIGHT);
}
if (density || o.density) return (!o.density);
if (touchscreen || o.touchscreen) return (!o.touchscreen);
if ((inputFlags | o.inputFlags) & MASK_KEYSHIDDEN) {
return !(o.inputFlags & MASK_KEYSHIDDEN);
}
if ((inputFlags | o.inputFlags) & MASK_NAVHIDDEN) {
return !(o.inputFlags & MASK_NAVHIDDEN);
}
if (keyboard || o.keyboard) return (!o.keyboard);
if (navigation || o.navigation) return (!o.navigation);
if (screenWidth || o.screenWidth) return (!o.screenWidth);
if (screenHeight || o.screenHeight) return (!o.screenHeight);
if (sdkVersion || o.sdkVersion) return (!o.sdkVersion);
if (minorVersion || o.minorVersion) return (!o.minorVersion);
// Both configurations have nothing defined except some possible future
// value. Returning the comparison of the two configurations is a
// "best effort" at this point to protect against incorrect dominations.
return *this != o;
}
bool ConfigDescription::conflictsWith(const ConfigDescription& o) const {
// This method should be updated as new configuration parameters are
// introduced (e.g. screenConfig2).
auto pred = [](const uint32_t a, const uint32_t b) -> bool {
return a == 0 || b == 0 || a == b;
};
// The values here can be found in ResTable_config#match. Density and range
// values can't lead to conflicts, and are ignored.
return !pred(mcc, o.mcc)
|| !pred(mnc, o.mnc)
|| !pred(locale, o.locale)
|| !pred(screenLayout & MASK_LAYOUTDIR, o.screenLayout & MASK_LAYOUTDIR)
|| !pred(screenLayout & MASK_SCREENLONG, o.screenLayout & MASK_SCREENLONG)
|| !pred(screenLayout & MASK_UI_MODE_TYPE, o.screenLayout & MASK_UI_MODE_TYPE)
|| !pred(uiMode & MASK_UI_MODE_TYPE, o.uiMode & MASK_UI_MODE_TYPE)
|| !pred(uiMode & MASK_UI_MODE_NIGHT, o.uiMode & MASK_UI_MODE_NIGHT)
|| !pred(screenLayout2 & MASK_SCREENROUND, o.screenLayout2 & MASK_SCREENROUND)
|| !pred(orientation, o.orientation)
|| !pred(touchscreen, o.touchscreen)
|| !pred(inputFlags & MASK_KEYSHIDDEN, o.inputFlags & MASK_KEYSHIDDEN)
|| !pred(inputFlags & MASK_NAVHIDDEN, o.inputFlags & MASK_NAVHIDDEN)
|| !pred(keyboard, o.keyboard)
|| !pred(navigation, o.navigation);
}
bool ConfigDescription::isCompatibleWith(const ConfigDescription& o) const {
return !conflictsWith(o) && !dominates(o) && !o.dominates(*this);
}
} // namespace aapt
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