70     : fImpl(std::make_unique<SkDeflateWStream::Impl>()) {  in SkDeflateWStream()
71     fImpl->fOut = out;  in SkDeflateWStream()
72     fImpl->fInBufferIndex = 0;  in SkDeflateWStream()
73     if (!fImpl->fOut) {  in SkDeflateWStream()
76     fImpl->fZStream.next_in = nullptr;  in SkDeflateWStream()
77     fImpl->fZStream.zalloc = &skia_alloc_func;  in SkDeflateWStream()
78     fImpl->fZStream.zfree = &skia_free_func;  in SkDeflateWStream()
79     fImpl->fZStream.opaque = nullptr;  in SkDeflateWStream()
81     SkDEBUGCODE(int r =) deflateInit2(&fImpl->fZStream, compressionLevel,  in SkDeflateWStream()
91     if (!fImpl->fOut) {  in finalize()
94     do_deflate(Z_FINISH, &fImpl->fZStream, fImpl->fOut, fImpl->fInBuffer,  in finalize()
95                fImpl->fInBufferIndex);  in finalize()
96     (void)deflateEnd(&fImpl->fZStream);  in finalize()
97     fImpl->fOut = nullptr;  in finalize()
102     if (!fImpl->fOut) {  in write()
108                 std::min(len, sizeof(fImpl->fInBuffer) - fImpl->fInBufferIndex);  in write()
109         memcpy(fImpl->fInBuffer + fImpl->fInBufferIndex, buffer, tocopy);  in write()
112         fImpl->fInBufferIndex += tocopy;  in write()
113         SkASSERT(fImpl->fInBufferIndex <= sizeof(fImpl->fInBuffer));  in write()
116         if (sizeof(fImpl->fInBuffer) == fImpl->fInBufferIndex) {  in write()
117             do_deflate(Z_NO_FLUSH, &fImpl->fZStream, fImpl->fOut,  in write()
118                        fImpl->fInBuffer, fImpl->fInBufferIndex);  in write()
119             fImpl->fInBufferIndex = 0;  in write()
126     return fImpl->fZStream.total_in + fImpl->fInBufferIndex;  in bytesWritten()