70   GrallocBuffer* buffer = reinterpret_cast<GrallocBuffer*>(  in reference_buffer()  local
72   if (!buffer) {  in reference_buffer()
73     buffer = new GrallocBuffer();  in reference_buffer()
74     hashmapPut(map, const_cast<int*>(&hnd->offset), buffer);  in reference_buffer()
77   if (!buffer->vaddr) {  in reference_buffer()
96     buffer->vaddr = mapped;  in reference_buffer()
98   buffer->ref_count++;  in reference_buffer()
99   return buffer->vaddr;  in reference_buffer()
106   GrallocBuffer* buffer = reinterpret_cast<GrallocBuffer*>(  in unreference_buffer()  local
108   if (!buffer) {  in unreference_buffer()
114   if (buffer->ref_count == 0) {  in unreference_buffer()
120   buffer->ref_count--;  in unreference_buffer()
121   if (buffer->ref_count == 0) {  in unreference_buffer()
122     result = munmap(buffer->vaddr, hnd->size);  in unreference_buffer()
129     buffer->vaddr = NULL;  in unreference_buffer()