1 #ifndef __NOUVEAU_STATEBUF_H__
2 #define __NOUVEAU_STATEBUF_H__
3
4 /* state buffers: lightweight state objects interface */
5 /* relocations are not supported, but Gallium CSOs don't require them */
6
7 struct nouveau_statebuf_builder
8 {
9 uint32_t* p;
10 #ifdef DEBUG
11 uint32_t* pend;
12 #endif
13 };
14
15 #ifdef DEBUG
16 #define sb_init(var) {var, var + sizeof(var) / sizeof((var)[0])}
17 #define sb_data(sb, v) do {assert((sb).p != (sb).pend); *(sb).p++ = (v);} while(0)
18 #else
19 #define sb_init(var) {var}
20 #define sb_data(sb, v) *(sb).p++ = (v)
21 #endif
22
sb_header(unsigned subc,unsigned mthd,unsigned size)23 static inline uint32_t sb_header(unsigned subc, unsigned mthd, unsigned size)
24 {
25 return (size << 18) | (subc << 13) | mthd;
26 }
27
28 #define sb_method(sb, v, n) sb_data(sb, sb_header(SUBC_3D(v), n));
29
30 #define sb_len(sb, var) ((sb).p - (var))
31 #define sb_emit(push, sb_buf, sb_len) do {PUSH_SPACE((push), (sb_len)); PUSH_DATAp((push), (sb_buf), (sb_len)); } while(0)
32 #endif
33