1 #ifndef INTEL_BATCHBUFFER_H
2 #define INTEL_BATCHBUFFER_H
4 #include "main/mtypes.h"
6 #include "intel_context.h"
7 #include "intel_bufmgr.h"
10 #define BATCH_SZ 16384
11 #define BATCH_RESERVED 16
15 * Batchbuffer contents may be looped over per cliprect, but do not
20 * Batchbuffer contents require looping over per cliprect at batch submit
23 * This will be upgraded to NO_LOOP_CLIPRECTS when there's a single
24 * constant cliprect, as in DRI2 or FBO rendering.
28 * Batchbuffer contents contain drawing that should not be executed multiple
33 * Batchbuffer contents contain drawing that already handles cliprects, such
34 * as 2D drawing to front/back/depth that doesn't respect DRAWING_RECTANGLE.
36 * Equivalent behavior to NO_LOOP_CLIPRECTS, but may not persist in batch
37 * outside of LOCK/UNLOCK. This is upgraded to just NO_LOOP_CLIPRECTS when
38 * there's a constant cliprect, as in DRI2 or FBO rendering.
43 struct intel_batchbuffer
45 struct intel_context
*intel
;
54 enum cliprect_mode cliprect_mode
;
58 /** Tracking of BEGIN_BATCH()/OUT_BATCH()/ADVANCE_BATCH() debugging */
67 struct intel_batchbuffer
*intel_batchbuffer_alloc(struct intel_context
70 void intel_batchbuffer_free(struct intel_batchbuffer
*batch
);
73 void _intel_batchbuffer_flush(struct intel_batchbuffer
*batch
,
74 const char *file
, int line
);
76 #define intel_batchbuffer_flush(batch) \
77 _intel_batchbuffer_flush(batch, __FILE__, __LINE__)
79 void intel_batchbuffer_reset(struct intel_batchbuffer
*batch
);
82 /* Unlike bmBufferData, this currently requires the buffer be mapped.
83 * Consider it a convenience function wrapping multple
84 * intel_buffer_dword() calls.
86 void intel_batchbuffer_data(struct intel_batchbuffer
*batch
,
87 const void *data
, GLuint bytes
,
88 enum cliprect_mode cliprect_mode
);
90 void intel_batchbuffer_release_space(struct intel_batchbuffer
*batch
,
93 GLboolean
intel_batchbuffer_emit_reloc(struct intel_batchbuffer
*batch
,
95 uint32_t read_domains
,
96 uint32_t write_domain
,
99 /* Inline functions - might actually be better off with these
100 * non-inlined. Certainly better off switching all command packets to
101 * be passed as structs rather than dwords, but that's a little bit of
105 intel_batchbuffer_space(struct intel_batchbuffer
*batch
)
107 return (batch
->size
- BATCH_RESERVED
) - (batch
->ptr
- batch
->map
);
112 intel_batchbuffer_emit_dword(struct intel_batchbuffer
*batch
, GLuint dword
)
115 assert(intel_batchbuffer_space(batch
) >= 4);
116 *(GLuint
*) (batch
->ptr
) = dword
;
121 intel_batchbuffer_require_space(struct intel_batchbuffer
*batch
,
123 enum cliprect_mode cliprect_mode
)
125 assert(sz
< batch
->size
- 8);
126 if (intel_batchbuffer_space(batch
) < sz
)
127 intel_batchbuffer_flush(batch
);
129 if ((cliprect_mode
== LOOP_CLIPRECTS
||
130 cliprect_mode
== REFERENCES_CLIPRECTS
) &&
131 batch
->intel
->constant_cliprect
)
132 cliprect_mode
= NO_LOOP_CLIPRECTS
;
134 if (cliprect_mode
!= IGNORE_CLIPRECTS
) {
135 if (batch
->cliprect_mode
== IGNORE_CLIPRECTS
) {
136 batch
->cliprect_mode
= cliprect_mode
;
138 if (batch
->cliprect_mode
!= cliprect_mode
) {
139 intel_batchbuffer_flush(batch
);
140 batch
->cliprect_mode
= cliprect_mode
;
146 /* Here are the crusty old macros, to be removed:
150 #define BEGIN_BATCH(n, cliprect_mode) do { \
151 intel_batchbuffer_require_space(intel->batch, (n)*4, cliprect_mode); \
152 assert(intel->batch->emit.start_ptr == NULL); \
153 intel->batch->emit.total = (n) * 4; \
154 intel->batch->emit.start_ptr = intel->batch->ptr; \
157 #define OUT_BATCH(d) intel_batchbuffer_emit_dword(intel->batch, d)
159 #define OUT_RELOC(buf, read_domains, write_domain, delta) do { \
160 assert((unsigned) (delta) <= buf->size); \
161 intel_batchbuffer_emit_reloc(intel->batch, buf, \
162 read_domains, write_domain, delta); \
165 #define ADVANCE_BATCH() do { \
166 unsigned int _n = intel->batch->ptr - intel->batch->emit.start_ptr; \
167 assert(intel->batch->emit.start_ptr != NULL); \
168 if (_n != intel->batch->emit.total) { \
169 fprintf(stderr, "ADVANCE_BATCH: %d of %d dwords emitted\n", \
170 _n, intel->batch->emit.total); \
173 intel->batch->emit.start_ptr = NULL; \
178 intel_batchbuffer_emit_mi_flush(struct intel_batchbuffer
*batch
)
180 intel_batchbuffer_require_space(batch
, 4, IGNORE_CLIPRECTS
);
181 intel_batchbuffer_emit_dword(batch
, MI_FLUSH
);