1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
#ifndef INTEL_BATCHBUFFER_H
#define INTEL_BATCHBUFFER_H
#include "mtypes.h"
#include "dri_bufmgr.h"
struct intel_context;
#define BATCH_SZ 16384
#define BATCH_RESERVED 16
enum cliprects_enable {
INTEL_BATCH_CLIPRECTS = 0,
INTEL_BATCH_NO_CLIPRECTS = 1
};
struct intel_batchbuffer
{
struct intel_context *intel;
dri_bo *buf;
dri_fence *last_fence;
GLubyte *map;
GLubyte *ptr;
enum cliprects_enable cliprects_enable;
GLuint size;
GLuint dirty_state;
GLuint id;
};
struct intel_batchbuffer *intel_batchbuffer_alloc(struct intel_context
*intel);
void intel_batchbuffer_free(struct intel_batchbuffer *batch);
void intel_batchbuffer_finish(struct intel_batchbuffer *batch);
void intel_batchbuffer_flush(struct intel_batchbuffer *batch);
void intel_batchbuffer_reset(struct intel_batchbuffer *batch);
/* Unlike bmBufferData, this currently requires the buffer be mapped.
* Consider it a convenience function wrapping multple
* intel_buffer_dword() calls.
*/
void intel_batchbuffer_data(struct intel_batchbuffer *batch,
const void *data, GLuint bytes,
enum cliprects_enable cliprects_enable);
void intel_batchbuffer_release_space(struct intel_batchbuffer *batch,
GLuint bytes);
GLboolean intel_batchbuffer_emit_reloc(struct intel_batchbuffer *batch,
dri_bo *buffer,
GLuint flags, GLuint offset);
/* Inline functions - might actually be better off with these
* non-inlined. Certainly better off switching all command packets to
* be passed as structs rather than dwords, but that's a little bit of
* work...
*/
static INLINE GLuint
intel_batchbuffer_space(struct intel_batchbuffer *batch)
{
return (batch->size - BATCH_RESERVED) - (batch->ptr - batch->map);
}
static INLINE void
intel_batchbuffer_emit_dword(struct intel_batchbuffer *batch, GLuint dword)
{
assert(batch->map);
assert(intel_batchbuffer_space(batch) >= 4);
*(GLuint *) (batch->ptr) = dword;
batch->ptr += 4;
}
static INLINE void
intel_batchbuffer_require_space(struct intel_batchbuffer *batch,
GLuint sz,
enum cliprects_enable cliprects_enable)
{
assert(sz < batch->size - 8);
if (intel_batchbuffer_space(batch) < sz)
intel_batchbuffer_flush(batch);
/* Upgrade the buffer to being looped over per cliprect if this batch
* emit needs it. The code used to emit a batch whenever the
* cliprects_enable was changed, but reducing the overhead of frequent
* batch flushing is more important than reducing state parsing,
* particularly as we move towards private backbuffers and number
* cliprects always being 1 except at swap.
*/
if (cliprects_enable == INTEL_BATCH_CLIPRECTS)
batch->cliprects_enable = INTEL_BATCH_CLIPRECTS;
}
/* Here are the crusty old macros, to be removed:
*/
#define BATCH_LOCALS
#define BEGIN_BATCH(n, cliprects_enable) do { \
intel_batchbuffer_require_space(intel->batch, (n)*4, cliprects_enable); \
} while (0)
#define OUT_BATCH(d) intel_batchbuffer_emit_dword(intel->batch, d)
#define OUT_RELOC(buf, cliprects_enable, delta) do { \
assert((delta) >= 0); \
intel_batchbuffer_emit_reloc(intel->batch, buf, cliprects_enable, delta); \
} while (0)
#define ADVANCE_BATCH() do { } while(0)
#endif
|
