diff options
Diffstat (limited to 'libs/minikin/FontFamily.cpp')
| -rw-r--r-- | libs/minikin/FontFamily.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/libs/minikin/FontFamily.cpp b/libs/minikin/FontFamily.cpp index f688a33..d2e5867 100644 --- a/libs/minikin/FontFamily.cpp +++ b/libs/minikin/FontFamily.cpp @@ -23,6 +23,7 @@ #include "MinikinInternal.h" #include <minikin/MinikinFont.h> #include <minikin/AnalyzeStyle.h> +#include <minikin/CmapCoverage.h> #include <minikin/FontFamily.h> #include <UniquePtr.h> @@ -128,6 +129,7 @@ void FontFamily::addFont(MinikinFont* typeface, FontStyle style) { void FontFamily::addFontLocked(MinikinFont* typeface, FontStyle style) { typeface->RefLocked(); mFonts.push_back(Font(typeface, style)); + mCoverageValid = false; } // Compute a matching metric between two styles - 0 is an exact match @@ -183,4 +185,23 @@ FontStyle FontFamily::getStyle(size_t index) const { return mFonts[index].style; } +const SparseBitSet* FontFamily::getCoverage() { + if (!mCoverageValid) { + const FontStyle defaultStyle; + MinikinFont* typeface = getClosestMatch(defaultStyle).font; + const uint32_t cmapTag = MinikinFont::MakeTag('c', 'm', 'a', 'p'); + size_t cmapSize = 0; + bool ok = typeface->GetTable(cmapTag, NULL, &cmapSize); + UniquePtr<uint8_t[]> cmapData(new uint8_t[cmapSize]); + ok = typeface->GetTable(cmapTag, cmapData.get(), &cmapSize); + CmapCoverage::getCoverage(mCoverage, cmapData.get(), cmapSize); +#ifdef VERBOSE_DEBUG + ALOGD("font coverage length=%d, first ch=%x\n", mCoverage->length(), + mCoverage->nextSetBit(0)); +#endif + mCoverageValid = true; + } + return &mCoverage; +} + } // namespace android |