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
130
131
132
133
134
135
136
137
138
|
#include "glheader.h"
#include "macros.h"
#include "mtypes.h"
#include "colormac.h"
#include "i810screen.h"
#include "i810_dri.h"
#include "i810span.h"
#include "i810ioctl.h"
#include "swrast/swrast.h"
#define DBG 0
#define LOCAL_VARS \
i810ContextPtr imesa = I810_CONTEXT(ctx); \
__DRIdrawablePrivate *dPriv = imesa->driDrawable; \
driRenderbuffer *drb = (driRenderbuffer *) rb; \
GLuint pitch = drb->pitch; \
GLuint height = dPriv->h; \
GLushort p; \
char *buf = (char *)(drb->flippedData + \
dPriv->x * 2 + \
dPriv->y * pitch); \
(void) buf; (void) p
#define LOCAL_DEPTH_VARS \
i810ContextPtr imesa = I810_CONTEXT(ctx); \
__DRIdrawablePrivate *dPriv = imesa->driDrawable; \
driRenderbuffer *drb = (driRenderbuffer *) rb; \
GLuint pitch = drb->pitch; \
GLuint height = dPriv->h; \
char *buf = (char *)(drb->Base.Data + \
dPriv->x * 2 + \
dPriv->y * pitch)
#define INIT_MONO_PIXEL(p, color) \
p = PACK_COLOR_565( color[0], color[1], color[2] )
#define Y_FLIP(_y) (height - _y - 1)
#define HW_LOCK()
#define HW_UNLOCK()
/* 16 bit, 565 rgb color spanline and pixel functions
*/
#define WRITE_RGBA( _x, _y, r, g, b, a ) \
*(GLushort *)(buf + _x*2 + _y*pitch) = ( (((int)r & 0xf8) << 8) | \
(((int)g & 0xfc) << 3) | \
(((int)b & 0xf8) >> 3))
#define WRITE_PIXEL( _x, _y, p ) \
*(GLushort *)(buf + _x*2 + _y*pitch) = p
#define READ_RGBA( rgba, _x, _y ) \
do { \
GLushort p = *(GLushort *)(buf + _x*2 + _y*pitch); \
rgba[0] = ((p >> 8) & 0xf8) * 255 / 0xf8; \
rgba[1] = ((p >> 3) & 0xfc) * 255 / 0xfc; \
rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \
rgba[3] = 255; \
} while(0)
#define TAG(x) i810##x##_565
#include "spantmp.h"
/* 16 bit depthbuffer functions.
*/
#define VALUE_TYPE GLushort
#define WRITE_DEPTH( _x, _y, d ) \
*(GLushort *)(buf + (_x)*2 + (_y)*pitch) = d;
#define READ_DEPTH( d, _x, _y ) \
d = *(GLushort *)(buf + (_x)*2 + (_y)*pitch);
#define TAG(x) i810##x##_z16
#include "depthtmp.h"
/* Move locking out to get reasonable span performance.
*/
void i810SpanRenderStart( GLcontext *ctx )
{
i810ContextPtr imesa = I810_CONTEXT(ctx);
I810_FIREVERTICES(imesa);
LOCK_HARDWARE(imesa);
i810RegetLockQuiescent( imesa );
}
void i810SpanRenderFinish( GLcontext *ctx )
{
i810ContextPtr imesa = I810_CONTEXT( ctx );
_swrast_flush( ctx );
UNLOCK_HARDWARE( imesa );
}
void i810InitSpanFuncs( GLcontext *ctx )
{
struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
swdd->SpanRenderStart = i810SpanRenderStart;
swdd->SpanRenderFinish = i810SpanRenderFinish;
}
/**
* Plug in the Get/Put routines for the given driRenderbuffer.
*/
void
i810SetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis)
{
if (drb->Base.InternalFormat == GL_RGBA) {
/* always 565 RGB */
i810InitPointers_565(&drb->Base);
}
else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) {
i810InitDepthPointers_z16(&drb->Base);
}
else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) {
/* should never get here */
drb->Base.GetRow = NULL;
drb->Base.GetValues = NULL;
drb->Base.PutRow = NULL;
drb->Base.PutMonoRow = NULL;
drb->Base.PutValues = NULL;
drb->Base.PutMonoValues = NULL;
}
else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) {
drb->Base.GetRow = NULL;
drb->Base.GetValues = NULL;
drb->Base.PutRow = NULL;
drb->Base.PutMonoRow = NULL;
drb->Base.PutValues = NULL;
drb->Base.PutMonoValues = NULL;
}
}
|
