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
139
140
141
142
143
144
145
|
/*
* Copyright 2001 by Alan Hourihane.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Alan Hourihane not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Alan Hourihane makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* Authors: Alan Hourihane, <alanh@fairlite.demon.co.uk>
*
*/
#include "gamma_context.h"
#include "gamma_vb.h"
#include "glint_dri.h"
#include "mem.h"
gammaScreenPtr gammaCreateScreen( __DRIscreenPrivate *sPriv )
{
gammaScreenPtr gammaScreen;
GLINTDRIPtr gDRIPriv = (GLINTDRIPtr)sPriv->pDevPriv;
int i;
#if 0
/* Check the DRI version */
{
int major, minor, patch;
if ( XF86DRIQueryVersion( sPriv->display, &major, &minor, &patch ) ) {
if ( major != 3 || minor != 1 || patch < 0 ) {
__driUtilMessage( "r128 DRI driver expected DRI version 3.1.x but got version %d.%d.%d", major, minor, patch );
return GL_FALSE;
}
}
}
/* Check that the DDX driver version is compatible */
if ( sPriv->ddxMajor != 4 ||
sPriv->ddxMinor != 0 ||
sPriv->ddxPatch < 0 ) {
__driUtilMessage( "r128 DRI driver expected DDX driver version 4.0.x but got version %d.%d.%d", sPriv->ddxMajor, sPriv->ddxMinor, sPriv->ddxPatch );
return GL_FALSE;
}
/* Check that the DRM driver version is compatible */
if ( sPriv->drmMajor != 2 ||
sPriv->drmMinor != 1 ||
sPriv->drmPatch < 0 ) {
__driUtilMessage( "r128 DRI driver expected DRM driver version 2.1.x but got version %d.%d.%d", sPriv->drmMajor, sPriv->drmMinor, sPriv->drmPatch );
return GL_FALSE;
}
#endif
/* Allocate the private area */
gammaScreen = (gammaScreenPtr) CALLOC( sizeof(*gammaScreen) );
if ( !gammaScreen ) return NULL;
gammaScreen->regionCount = 4; /* Magic number. Can we fix this? */
gammaScreen->regions = Xmalloc(gammaScreen->regionCount *
sizeof(gammaRegion));
gammaScreen->regions[0].handle = gDRIPriv->registers0.handle;
gammaScreen->regions[0].size = gDRIPriv->registers0.size;
gammaScreen->regions[1].handle = gDRIPriv->registers1.handle;
gammaScreen->regions[1].size = gDRIPriv->registers1.size;
gammaScreen->regions[2].handle = gDRIPriv->registers2.handle;
gammaScreen->regions[2].size = gDRIPriv->registers2.size;
gammaScreen->regions[3].handle = gDRIPriv->registers3.handle;
gammaScreen->regions[3].size = gDRIPriv->registers3.size;
/* Next, map all the regions */
for (i = 0; i < gammaScreen->regionCount; i++) {
if (drmMap(sPriv->fd,
gammaScreen->regions[i].handle,
gammaScreen->regions[i].size,
&gammaScreen->regions[i].map)) {
while (--i > 0) {
(void)drmUnmap(gammaScreen->regions[i].map,
gammaScreen->regions[i].size);
}
return GL_FALSE;
}
}
/* Get the list of dma buffers */
gammaScreen->bufs = drmMapBufs(sPriv->fd);
if (!gammaScreen->bufs) {
while (gammaScreen->regionCount > 0) {
(void)drmUnmap(gammaScreen->regions[gammaScreen->regionCount].map,
gammaScreen->regions[gammaScreen->regionCount].size);
gammaScreen->regionCount--;
}
return GL_FALSE;
}
gammaScreen->textureSize = gDRIPriv->textureSize;
gammaScreen->logTextureGranularity = gDRIPriv->logTextureGranularity;
gammaScreen->cpp = gDRIPriv->cpp;
gammaScreen->frontOffset = gDRIPriv->frontOffset;
gammaScreen->frontPitch = gDRIPriv->frontPitch;
gammaScreen->backOffset = gDRIPriv->backOffset;
gammaScreen->backPitch = gDRIPriv->backPitch;
gammaScreen->backX = gDRIPriv->backX;
gammaScreen->backY = gDRIPriv->backY;
gammaScreen->depthOffset = gDRIPriv->depthOffset;
gammaScreen->depthPitch = gDRIPriv->depthPitch;
gammaScreen->driScreen = sPriv;
return gammaScreen;
}
/* Destroy the device specific screen private data struct.
*/
void gammaDestroyScreen( __DRIscreenPrivate *sPriv )
{
gammaScreenPtr gammaScreen = (gammaScreenPtr)sPriv->private;
/* First, unmap the dma buffers */
drmUnmapBufs( gammaScreen->bufs );
/* Next, unmap all the regions */
while (gammaScreen->regionCount > 0) {
(void)drmUnmap(gammaScreen->regions[gammaScreen->regionCount].map,
gammaScreen->regions[gammaScreen->regionCount].size);
gammaScreen->regionCount--;
}
FREE(gammaScreen->regions);
FREE(gammaScreen);
}
|
