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
7struct 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
23static 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