Ensure log_clusters array is big enough. (738ef87e) · Commits · e / os / android_frameworks_base

core/jni/android/graphics/TextLayoutCache.cpp

+10 −23

Original line number	Diff line number	Diff line
		@@ -328,8 +328,7 @@ uint32_t TextLayoutCacheValue::getElapsedTime() {
		return mElapsedTime;
		}

		TextLayoutEngine::TextLayoutEngine() : mShaperItemGlyphArraySize(0),
		mShaperItemLogClustersArraySize(0) {
		TextLayoutEngine::TextLayoutEngine() : mShaperItemGlyphArraySize(0) {
		mDefaultTypeface = SkFontHost::CreateTypeface(NULL, NULL, NULL, 0, SkTypeface::kNormal);
		mArabicTypeface = NULL;
		mHebrewRegularTypeface = NULL;
		@@ -409,7 +408,7 @@ void TextLayoutEngine::computeValues(SkPaint* paint, const UChar* chars,
		#if DEBUG_GLYPHS
		LOGD(" -- dirFlags = %d", dirFlags);
		LOGD(" -- paraDir = %d", paraDir);
		LOGD(" -- run-count = %d", rc);
		LOGD(" -- run-count = %d", int(rc));
		#endif
		if (U_SUCCESS(status) && rc == 1) {
		// Normal case: one run, status is ok
		@@ -418,7 +417,7 @@ void TextLayoutEngine::computeValues(SkPaint* paint, const UChar* chars,
		} else if (!U_SUCCESS(status) \|\| rc < 1) {
		LOGW("Need to force to single run -- string = '%s',"
		" status = %d, rc = %d",
		String8(chars + start, count).string(), status, rc);
		String8(chars + start, count).string(), status, int(rc));
		isRTL = (paraDir == 1);
		useSingleRun = true;
		} else {
		@@ -720,7 +719,6 @@ size_t TextLayoutEngine::shapeFontRun(SkPaint* paint, bool isRTL) {
		}

		// Shape
		ensureShaperItemLogClustersArray(mShaperItem.item.length);
		ensureShaperItemGlyphArrays(mShaperItem.item.length * 3 / 2);
		mShaperItem.num_glyphs = mShaperItemGlyphArraySize;
		while (!HB_ShapeItem(&mShaperItem)) {
		@@ -744,10 +742,17 @@ void TextLayoutEngine::createShaperItemGlyphArrays(size_t size) {
		LOGD("Creating Glyph Arrays with size = %d", size);
		#endif
		mShaperItemGlyphArraySize = size;

		// These arrays are all indexed by glyph.
		mShaperItem.glyphs = new HB_Glyph[size];
		mShaperItem.attributes = new HB_GlyphAttributes[size];
		mShaperItem.advances = new HB_Fixed[size];
		mShaperItem.offsets = new HB_FixedPoint[size];

		// Although the log_clusters array is indexed by character, Harfbuzz expects that
		// it is big enough to hold one element per glyph. So we allocate log_clusters along
		// with the other glyph arrays above.
		mShaperItem.log_clusters = new unsigned short[size];
		}

		void TextLayoutEngine::deleteShaperItemGlyphArrays() {
		@@ -755,24 +760,6 @@ void TextLayoutEngine::deleteShaperItemGlyphArrays() {
		delete[] mShaperItem.attributes;
		delete[] mShaperItem.advances;
		delete[] mShaperItem.offsets;
		}

		void TextLayoutEngine::ensureShaperItemLogClustersArray(size_t size) {
		if (size > mShaperItemLogClustersArraySize) {
		deleteShaperItemLogClustersArray();
		createShaperItemLogClustersArray(size);
		}
		}

		void TextLayoutEngine::createShaperItemLogClustersArray(size_t size) {
		#if DEBUG_GLYPHS
		LOGD("Creating LogClusters Array with size = %d", size);
		#endif
		mShaperItemLogClustersArraySize = size;
		mShaperItem.log_clusters = new unsigned short[size];
		}

		void TextLayoutEngine::deleteShaperItemLogClustersArray() {
		delete[] mShaperItem.log_clusters;
		}

core/jni/android/graphics/TextLayoutCache.h

+0 −5

Original line number	Diff line number	Diff line
		@@ -252,7 +252,6 @@ private:
		KeyedVector<SkFontID, HB_Face> mCachedHBFaces;

		size_t mShaperItemGlyphArraySize;
		size_t mShaperItemLogClustersArraySize;

		size_t shapeFontRun(SkPaint* paint, bool isRTL);

		@@ -273,10 +272,6 @@ private:
		void createShaperItemGlyphArrays(size_t size);
		void deleteShaperItemGlyphArrays();

		void ensureShaperItemLogClustersArray(size_t size);
		void createShaperItemLogClustersArray(size_t size);
		void deleteShaperItemLogClustersArray();

		}; // TextLayoutEngine