AAPT2

First checking of AAPT2. The individual phases of AAPT2 work, but there
are some missing pieces.

For early testing we are missing:
- Need to properly mark file references and include them in package
- Need to package into zip

Final AAPT for apps we are missing:
- Need to crush PNGs
- Need to parse 9-patches
- Need to validate all of AndroidManifest.xml
- Need to write align method to align resource tables for splits.

Final AAPT for apps + system we are missing:
- Need to handle overlays
- Need to store comments for R file
- Need to handle --shared-lib (dynamic references too).

New AAPT features coming:
- Need to import compiled libraries
    - Name mangling
    - R file generation for library code

Change-Id: I95f8a63581b81a1f424ae6fb2c373c883b72c18d
diff --git a/tools/aapt2/ConfigDescription.cpp b/tools/aapt2/ConfigDescription.cpp
new file mode 100644
index 0000000..6ddf94a
--- /dev/null
+++ b/tools/aapt2/ConfigDescription.cpp
@@ -0,0 +1,752 @@
+/*
+ * 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 "StringPiece.h"
+#include "Util.h"
+
+#include <androidfw/ResourceTypes.h>
+#include <string>
+#include <vector>
+
+namespace aapt {
+
+using android::ResTable_config;
+
+static const char* kWildcardName = "any";
+
+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 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 (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->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;
+    }
+}
+
+} // namespace aapt