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
124
125
126
127
128
129
|
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/i810/i810_dri.h,v 1.11 2003/09/28 20:15:58 alanh Exp $ */
#ifndef _I810_DRI_
#define _I810_DRI_
#include "xf86drm.h"
#include "i810_common.h"
#define I810_MAX_DRAWABLES 256
typedef struct {
drmHandle regs;
drmSize regsSize;
drmAddress regsMap;
drmSize backbufferSize;
drmHandle backbuffer;
drmSize depthbufferSize;
drmHandle depthbuffer;
drmHandle textures;
int textureSize;
drmHandle agp_buffers;
drmSize agp_buf_size;
int deviceID;
int width;
int height;
int mem;
int cpp;
int bitsPerPixel;
int fbOffset;
int fbStride;
int backOffset;
int depthOffset;
int auxPitch;
int auxPitchBits;
int logTextureGranularity;
int textureOffset;
/* For non-dma direct rendering.
*/
int ringOffset;
int ringSize;
drmBufMapPtr drmBufs;
int irq;
unsigned int sarea_priv_offset;
} I810DRIRec, *I810DRIPtr;
/* WARNING: Do not change the SAREA structure without changing the kernel
* as well */
#define I810_UPLOAD_TEX0IMAGE 0x1 /* handled clientside */
#define I810_UPLOAD_TEX1IMAGE 0x2 /* handled clientside */
#define I810_UPLOAD_CTX 0x4
#define I810_UPLOAD_BUFFERS 0x8
#define I810_UPLOAD_TEX0 0x10
#define I810_UPLOAD_TEX1 0x20
#define I810_UPLOAD_CLIPRECTS 0x40
typedef struct {
unsigned char next, prev; /* indices to form a circular LRU */
unsigned char in_use; /* owned by a client, or free? */
int age; /* tracked by clients to update local LRU's */
} I810TexRegionRec, *I810TexRegionPtr;
typedef struct {
unsigned int ContextState[I810_CTX_SETUP_SIZE];
unsigned int BufferState[I810_DEST_SETUP_SIZE];
unsigned int TexState[2][I810_TEX_SETUP_SIZE];
unsigned int dirty;
unsigned int nbox;
XF86DRIClipRectRec boxes[I810_NR_SAREA_CLIPRECTS];
/* Maintain an LRU of contiguous regions of texture space. If
* you think you own a region of texture memory, and it has an
* age different to the one you set, then you are mistaken and
* it has been stolen by another client. If global texAge
* hasn't changed, there is no need to walk the list.
*
* These regions can be used as a proxy for the fine-grained
* texture information of other clients - by maintaining them
* in the same lru which is used to age their own textures,
* clients have an approximate lru for the whole of global
* texture space, and can make informed decisions as to which
* areas to kick out. There is no need to choose whether to
* kick out your own texture or someone else's - simply eject
* them all in LRU order.
*/
drmTextureRegion texList[I810_NR_TEX_REGIONS + 1];
/* Last elt is sentinal */
int texAge; /* last time texture was uploaded */
int last_enqueue; /* last time a buffer was enqueued */
int last_dispatch; /* age of the most recently dispatched buffer */
int last_quiescent; /* */
int ctxOwner; /* last context to upload state */
int vertex_prim;
int pf_enabled; /* is pageflipping allowed? */
int pf_active; /* is pageflipping active right now? */
int pf_current_page; /* which buffer is being displayed? */
} I810SAREARec, *I810SAREAPtr;
typedef struct {
/* Nothing here yet */
int dummy;
} I810ConfigPrivRec, *I810ConfigPrivPtr;
typedef struct {
/* Nothing here yet */
int dummy;
} I810DRIContextRec, *I810DRIContextPtr;
#endif
|
