Home | History | Annotate | Download | only in nouveau
      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 
     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