X-Git-Url: https://git.saurik.com/android/aapt.git/blobdiff_plain/bc42f517d49117f88286a82e72ead502c69d56f3..f278f138487e78a7508f79e92cb9413914bbf501:/StringPool.cpp

diff --git a/StringPool.cpp b/StringPool.cpp
index e28bdff..839eda5 100644
--- a/StringPool.cpp
+++ b/StringPool.cpp
@@ -5,8 +5,19 @@
 //
 
 #include "StringPool.h"
+#include "ResourceTable.h"
 
 #include <utils/ByteOrder.h>
+#include <utils/SortedVector.h>
+#include <cutils/qsort_r_compat.h>
+
+#if HAVE_PRINTF_ZD
+#  define ZD "%zd"
+#  define ZD_TYPE ssize_t
+#else
+#  define ZD "%ld"
+#  define ZD_TYPE long
+#endif
 
 #define NOISY(x) //x
 
@@ -22,49 +33,92 @@ void strcpy16_htod(uint16_t* dst, const uint16_t* src)
 
 void printStringPool(const ResStringPool* pool)
 {
-    const size_t NS = pool->size();
-    for (size_t s=0; s<NS; s++) {
+    SortedVector<const void*> uniqueStrings;
+    const size_t N = pool->size();
+    for (size_t i=0; i<N; i++) {
         size_t len;
-        const char *str = (const char*)pool->string8At(s, &len);
-        if (str == NULL) {
-            str = String8(pool->stringAt(s, &len)).string();
+        if (pool->isUTF8()) {
+            uniqueStrings.add(pool->string8At(i, &len));
+        } else {
+            uniqueStrings.add(pool->stringAt(i, &len));
         }
+    }
+
+    printf("String pool of " ZD " unique %s %s strings, " ZD " entries and "
+            ZD " styles using " ZD " bytes:\n",
+            (ZD_TYPE)uniqueStrings.size(), pool->isUTF8() ? "UTF-8" : "UTF-16",
+            pool->isSorted() ? "sorted" : "non-sorted",
+            (ZD_TYPE)N, (ZD_TYPE)pool->styleCount(), (ZD_TYPE)pool->bytes());
+
+    const size_t NS = pool->size();
+    for (size_t s=0; s<NS; s++) {
+        String8 str = pool->string8ObjectAt(s);
+        printf("String #" ZD ": %s\n", (ZD_TYPE) s, str.string());
+    }
+}
 
-        printf("String #%d: %s\n", s, str);
+String8 StringPool::entry::makeConfigsString() const {
+    String8 configStr(configTypeName);
+    if (configStr.size() > 0) configStr.append(" ");
+    if (configs.size() > 0) {
+        for (size_t j=0; j<configs.size(); j++) {
+            if (j > 0) configStr.append(", ");
+            configStr.append(configs[j].toString());
+        }
+    } else {
+        configStr = "(none)";
     }
+    return configStr;
 }
 
-StringPool::StringPool(bool sorted, bool utf8)
-    : mSorted(sorted), mUTF8(utf8), mValues(-1), mIdents(-1)
-{
+int StringPool::entry::compare(const entry& o) const {
+    // Strings with styles go first, to reduce the size of the styles array.
+    // We don't care about the relative order of these strings.
+    if (hasStyles) {
+        return o.hasStyles ? 0 : -1;
+    }
+    if (o.hasStyles) {
+        return 1;
+    }
+
+    // Sort unstyled strings by type, then by logical configuration.
+    int comp = configTypeName.compare(o.configTypeName);
+    if (comp != 0) {
+        return comp;
+    }
+    const size_t LHN = configs.size();
+    const size_t RHN = o.configs.size();
+    size_t i=0;
+    while (i < LHN && i < RHN) {
+        comp = configs[i].compareLogical(o.configs[i]);
+        if (comp != 0) {
+            return comp;
+        }
+        i++;
+    }
+    if (LHN < RHN) return -1;
+    else if (LHN > RHN) return 1;
+    return 0;
 }
 
-ssize_t StringPool::add(const String16& value, bool mergeDuplicates)
+StringPool::StringPool(bool utf8) :
+        mUTF8(utf8), mValues(-1)
 {
-    return add(String16(), value, mergeDuplicates);
 }
 
-ssize_t StringPool::add(const String16& value, const Vector<entry_style_span>& spans)
+ssize_t StringPool::add(const String16& value, const Vector<entry_style_span>& spans,
+        const String8* configTypeName, const ResTable_config* config)
 {
-    ssize_t res = add(String16(), value, false);
+    ssize_t res = add(value, false, configTypeName, config);
     if (res >= 0) {
         addStyleSpans(res, spans);
     }
     return res;
 }
 
-ssize_t StringPool::add(const String16& ident, const String16& value,
-                        bool mergeDuplicates)
+ssize_t StringPool::add(const String16& value,
+        bool mergeDuplicates, const String8* configTypeName, const ResTable_config* config)
 {
-    if (ident.size() > 0) {
-        ssize_t idx = mIdents.valueFor(ident);
-        if (idx >= 0) {
-            fprintf(stderr, "ERROR: Duplicate string identifier %s\n",
-                    String8(mEntries[idx].value).string());
-            return UNKNOWN_ERROR;
-        }
-    }
-
     ssize_t vidx = mValues.indexOfKey(value);
     ssize_t pos = vidx >= 0 ? mValues.valueAt(vidx) : -1;
     ssize_t eidx = pos >= 0 ? mEntryArray.itemAt(pos) : -1;
@@ -76,28 +130,47 @@ ssize_t StringPool::add(const String16& ident, const String16& value,
         }
     }
 
-    const bool first = vidx < 0;
-    if (first || !mergeDuplicates) {
-        pos = mEntryArray.add(eidx);
-        if (first) {
-            vidx = mValues.add(value, pos);
-            const size_t N = mEntryArrayToValues.size();
-            for (size_t i=0; i<N; i++) {
-                size_t& e = mEntryArrayToValues.editItemAt(i);
-                if ((ssize_t)e >= vidx) {
-                    e++;
+    if (configTypeName != NULL) {
+        entry& ent = mEntries.editItemAt(eidx);
+        NOISY(printf("*** adding config type name %s, was %s\n",
+                configTypeName->string(), ent.configTypeName.string()));
+        if (ent.configTypeName.size() <= 0) {
+            ent.configTypeName = *configTypeName;
+        } else if (ent.configTypeName != *configTypeName) {
+            ent.configTypeName = " ";
+        }
+    }
+
+    if (config != NULL) {
+        // Add this to the set of configs associated with the string.
+        entry& ent = mEntries.editItemAt(eidx);
+        size_t addPos;
+        for (addPos=0; addPos<ent.configs.size(); addPos++) {
+            int cmp = ent.configs.itemAt(addPos).compareLogical(*config);
+            if (cmp >= 0) {
+                if (cmp > 0) {
+                    NOISY(printf("*** inserting config: %s\n", config->toString().string()));
+                    ent.configs.insertAt(*config, addPos);
                 }
+                break;
             }
         }
-        mEntryArrayToValues.add(vidx);
-        if (!mSorted) {
-            entry& ent = mEntries.editItemAt(eidx);
-            ent.indices.add(pos);
+        if (addPos >= ent.configs.size()) {
+            NOISY(printf("*** adding config: %s\n", config->toString().string()));
+            ent.configs.add(*config);
         }
     }
 
-    if (ident.size() > 0) {
-        mIdents.add(ident, vidx);
+    const bool first = vidx < 0;
+    const bool styled = (pos >= 0 && (size_t)pos < mEntryStyleArray.size()) ?
+        mEntryStyleArray[pos].spans.size() : 0;
+    if (first || styled || !mergeDuplicates) {
+        pos = mEntryArray.add(eidx);
+        if (first) {
+            vidx = mValues.add(value, pos);
+        }
+        entry& ent = mEntries.editItemAt(eidx);
+        ent.indices.add(pos);
     }
 
     NOISY(printf("Adding string %s to pool: pos=%d eidx=%d vidx=%d\n",
@@ -130,8 +203,6 @@ status_t StringPool::addStyleSpans(size_t idx, const Vector<entry_style_span>& s
 
 status_t StringPool::addStyleSpan(size_t idx, const entry_style_span& span)
 {
-    LOG_ALWAYS_FATAL_IF(mSorted, "Can't use styles with sorted string pools.");
-
     // Place blank entries in the span array up to this index.
     while (mEntryStyleArray.size() <= idx) {
         mEntryStyleArray.add();
@@ -139,26 +210,136 @@ status_t StringPool::addStyleSpan(size_t idx, const entry_style_span& span)
 
     entry_style& style = mEntryStyleArray.editItemAt(idx);
     style.spans.add(span);
+    mEntries.editItemAt(mEntryArray[idx]).hasStyles = true;
     return NO_ERROR;
 }
 
-size_t StringPool::size() const
+int StringPool::config_sort(void* state, const void* lhs, const void* rhs)
 {
-    return mSorted ? mValues.size() : mEntryArray.size();
+    StringPool* pool = (StringPool*)state;
+    const entry& lhe = pool->mEntries[pool->mEntryArray[*static_cast<const size_t*>(lhs)]];
+    const entry& rhe = pool->mEntries[pool->mEntryArray[*static_cast<const size_t*>(rhs)]];
+    return lhe.compare(rhe);
 }
 
-const StringPool::entry& StringPool::entryAt(size_t idx) const
+void StringPool::sortByConfig()
 {
-    if (!mSorted) {
-        return mEntries[mEntryArray[idx]];
-    } else {
-        return mEntries[mEntryArray[mValues.valueAt(idx)]];
+    LOG_ALWAYS_FATAL_IF(mOriginalPosToNewPos.size() > 0, "Can't sort string pool after already sorted.");
+
+    const size_t N = mEntryArray.size();
+
+    // This is a vector that starts out with a 1:1 mapping to entries
+    // in the array, which we will sort to come up with the desired order.
+    // At that point it maps from the new position in the array to the
+    // original position the entry appeared.
+    Vector<size_t> newPosToOriginalPos;
+    newPosToOriginalPos.setCapacity(N);
+    for (size_t i=0; i < N; i++) {
+        newPosToOriginalPos.add(i);
     }
-}
 
-size_t StringPool::countIdentifiers() const
-{
-    return mIdents.size();
+    // Sort the array.
+    NOISY(printf("SORTING STRINGS BY CONFIGURATION...\n"));
+    // Vector::sort uses insertion sort, which is very slow for this data set.
+    // Use quicksort instead because we don't need a stable sort here.
+    qsort_r_compat(newPosToOriginalPos.editArray(), N, sizeof(size_t), this, config_sort);
+    //newPosToOriginalPos.sort(config_sort, this);
+    NOISY(printf("DONE SORTING STRINGS BY CONFIGURATION.\n"));
+
+    // Create the reverse mapping from the original position in the array
+    // to the new position where it appears in the sorted array.  This is
+    // so that clients can re-map any positions they had previously stored.
+    mOriginalPosToNewPos = newPosToOriginalPos;
+    for (size_t i=0; i<N; i++) {
+        mOriginalPosToNewPos.editItemAt(newPosToOriginalPos[i]) = i;
+    }
+
+#if 0
+    SortedVector<entry> entries;
+
+    for (size_t i=0; i<N; i++) {
+        printf("#%d was %d: %s\n", i, newPosToOriginalPos[i],
+                mEntries[mEntryArray[newPosToOriginalPos[i]]].makeConfigsString().string());
+        entries.add(mEntries[mEntryArray[i]]);
+    }
+
+    for (size_t i=0; i<entries.size(); i++) {
+        printf("Sorted config #%d: %s\n", i,
+                entries[i].makeConfigsString().string());
+    }
+#endif
+
+    // Now we rebuild the arrays.
+    Vector<entry> newEntries;
+    Vector<size_t> newEntryArray;
+    Vector<entry_style> newEntryStyleArray;
+    DefaultKeyedVector<size_t, size_t> origOffsetToNewOffset;
+
+    for (size_t i=0; i<N; i++) {
+        // We are filling in new offset 'i'; oldI is where we can find it
+        // in the original data structure.
+        size_t oldI = newPosToOriginalPos[i];
+        // This is the actual entry associated with the old offset.
+        const entry& oldEnt = mEntries[mEntryArray[oldI]];
+        // This is the same entry the last time we added it to the
+        // new entry array, if any.
+        ssize_t newIndexOfOffset = origOffsetToNewOffset.indexOfKey(oldI);
+        size_t newOffset;
+        if (newIndexOfOffset < 0) {
+            // This is the first time we have seen the entry, so add
+            // it.
+            newOffset = newEntries.add(oldEnt);
+            newEntries.editItemAt(newOffset).indices.clear();
+        } else {
+            // We have seen this entry before, use the existing one
+            // instead of adding it again.
+            newOffset = origOffsetToNewOffset.valueAt(newIndexOfOffset);
+        }
+        // Update the indices to include this new position.
+        newEntries.editItemAt(newOffset).indices.add(i);
+        // And add the offset of the entry to the new entry array.
+        newEntryArray.add(newOffset);
+        // Add any old style to the new style array.
+        if (mEntryStyleArray.size() > 0) {
+            if (oldI < mEntryStyleArray.size()) {
+                newEntryStyleArray.add(mEntryStyleArray[oldI]);
+            } else {
+                newEntryStyleArray.add(entry_style());
+            }
+        }
+    }
+
+    // Now trim any entries at the end of the new style array that are
+    // not needed.
+    for (ssize_t i=newEntryStyleArray.size()-1; i>=0; i--) {
+        const entry_style& style = newEntryStyleArray[i];
+        if (style.spans.size() > 0) {
+            // That's it.
+            break;
+        }
+        // This one is not needed; remove.
+        newEntryStyleArray.removeAt(i);
+    }
+
+    // All done, install the new data structures and upate mValues with
+    // the new positions.
+    mEntries = newEntries;
+    mEntryArray = newEntryArray;
+    mEntryStyleArray = newEntryStyleArray;
+    mValues.clear();
+    for (size_t i=0; i<mEntries.size(); i++) {
+        const entry& ent = mEntries[i];
+        mValues.add(ent.value, ent.indices[0]);
+    }
+
+#if 0
+    printf("FINAL SORTED STRING CONFIGS:\n");
+    for (size_t i=0; i<mEntries.size(); i++) {
+        const entry& ent = mEntries[i];
+        printf("#" ZD " %s: %s\n", (ZD_TYPE)i, ent.makeConfigsString().string(),
+                String8(ent.value).string());
+    }
+#endif
 }
 
 sp<AaptFile> StringPool::createStringBlock()
@@ -214,7 +395,7 @@ status_t StringPool::writeStringBlock(const sp<AaptFile>& pool)
         }
     }
 
-    const size_t ENTRIES = size();
+    const size_t ENTRIES = mEntryArray.size();
 
     // Now build the pool of unique strings.
 
@@ -348,9 +529,6 @@ status_t StringPool::writeStringBlock(const sp<AaptFile>& pool)
     header->header.size = htodl(pool->getSize());
     header->stringCount = htodl(ENTRIES);
     header->styleCount = htodl(STYLES);
-    if (mSorted) {
-        header->flags |= htodl(ResStringPool_header::SORTED_FLAG);
-    }
     if (mUTF8) {
         header->flags |= htodl(ResStringPool_header::UTF8_FLAG);
     }
@@ -360,33 +538,18 @@ status_t StringPool::writeStringBlock(const sp<AaptFile>& pool)
     // Write string index array.
 
     uint32_t* index = (uint32_t*)(header+1);
-    if (mSorted) {
-        for (i=0; i<ENTRIES; i++) {
-            entry& ent = const_cast<entry&>(entryAt(i));
-            ent.indices.clear();
-            ent.indices.add(i);
-            *index++ = htodl(ent.offset);
-        }
-    } else {
-        for (i=0; i<ENTRIES; i++) {
-            entry& ent = mEntries.editItemAt(mEntryArray[i]);
-            *index++ = htodl(ent.offset);
-            NOISY(printf("Writing entry #%d: \"%s\" ent=%d off=%d\n", i,
-                    String8(ent.value).string(),
-                    mEntryArray[i], ent.offset));
-        }
+    for (i=0; i<ENTRIES; i++) {
+        entry& ent = mEntries.editItemAt(mEntryArray[i]);
+        *index++ = htodl(ent.offset);
+        NOISY(printf("Writing entry #%d: \"%s\" ent=%d off=%d\n", i,
+                String8(ent.value).string(),
+                mEntryArray[i], ent.offset));
     }
 
     // Write style index array.
 
-    if (mSorted) {
-        for (i=0; i<STYLES; i++) {
-            LOG_ALWAYS_FATAL("Shouldn't be here!");
-        }
-    } else {
-        for (i=0; i<STYLES; i++) {
-            *index++ = htodl(mEntryStyleArray[i].offset);
-        }
+    for (i=0; i<STYLES; i++) {
+        *index++ = htodl(mEntryStyleArray[i].offset);
     }
 
     return NO_ERROR;