16 #define align_buffer_16(var, size)                                             \  argument
17   uint8* var;                                                                  \
18   uint8* var##_mem;                                                            \
19   var##_mem = reinterpret_cast<uint8*>(malloc((size) + 15));                   \
20   var = reinterpret_cast<uint8*>                                               \
21         ((reinterpret_cast<intptr_t>(var##_mem) + 15) & ~15);
23 #define free_aligned_buffer_16(var) \  argument
24   free(var##_mem);  \
25   var = 0;
28 #define align_buffer_page_end(var, size)                                       \  argument
29   uint8* var;                                                                  \
30   uint8* var##_mem;                                                            \
31   var##_mem = reinterpret_cast<uint8*>(malloc(((size) + 4095) & ~4095));       \
32   var = var##_mem + (-(size) & 4095);
34 #define free_aligned_buffer_page_end(var) \  argument
35   free(var##_mem);  \
36   var = 0;