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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
|
/*
* Copyright © 2009 Maarten Maathuis
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <string.h>
#include "exa_priv.h"
#include "exa.h"
void
exaCreateDriverPixmap_mixed(PixmapPtr pPixmap)
{
ScreenPtr pScreen = pPixmap->drawable.pScreen;
ExaScreenPriv(pScreen);
ExaPixmapPriv(pPixmap);
int w = pPixmap->drawable.width, h = pPixmap->drawable.height;
int depth = pPixmap->drawable.depth, bpp = pPixmap->drawable.bitsPerPixel;
int class = pPixmap->drawable.class;
int paddedWidth = pExaPixmap->sys_pitch;
/* Already done. */
if (pExaPixmap->driverPriv)
return;
if (exaPixmapIsPinned(pPixmap))
return;
/* Can't accel 1/4 bpp. */
if (pExaPixmap->accel_blocked || bpp < 8)
return;
if (pExaScr->info->CreatePixmap2) {
int new_pitch = 0;
pExaPixmap->driverPriv = pExaScr->info->CreatePixmap2(pScreen, w, h, depth, class, bpp, &new_pitch);
paddedWidth = pExaPixmap->fb_pitch = new_pitch;
} else {
if (paddedWidth < pExaPixmap->fb_pitch)
paddedWidth = pExaPixmap->fb_pitch;
pExaPixmap->driverPriv = pExaScr->info->CreatePixmap(pScreen, paddedWidth*h, 0);
}
if (!pExaPixmap->driverPriv)
return;
(*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,
paddedWidth, NULL);
}
void
exaDoMigration_mixed(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel)
{
int i;
/* If anything is pinned in system memory, we won't be able to
* accelerate.
*/
for (i = 0; i < npixmaps; i++) {
if (exaPixmapIsPinned (pixmaps[i].pPix) &&
!exaPixmapHasGpuCopy (pixmaps[i].pPix))
{
can_accel = FALSE;
break;
}
}
/* We can do nothing. */
if (!can_accel)
return;
for (i = 0; i < npixmaps; i++) {
PixmapPtr pPixmap = pixmaps[i].pPix;
ExaPixmapPriv(pPixmap);
if (!pExaPixmap->driverPriv)
exaCreateDriverPixmap_mixed(pPixmap);
if (pExaPixmap->pDamage && exaPixmapHasGpuCopy(pPixmap)) {
ExaScreenPriv(pPixmap->drawable.pScreen);
/* This pitch is needed for proper acceleration. For some reason
* there are pixmaps without pDamage and a bad fb_pitch value.
* So setting devKind when only exaPixmapHasGpuCopy() is true
* causes corruption. Pixmaps without pDamage are not migrated
* and should have a valid devKind at all times, so that's why this
* isn't causing problems. Pixmaps have their gpu pitch set the
* first time in the MPH call from exaCreateDriverPixmap_mixed().
*/
pPixmap->devKind = pExaPixmap->fb_pitch;
exaCopyDirtyToFb(pixmaps + i);
if (pExaScr->deferred_mixed_pixmap == pPixmap &&
!pixmaps[i].as_dst && !pixmaps[i].pReg)
pExaScr->deferred_mixed_pixmap = NULL;
}
pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
}
}
void
exaMoveInPixmap_mixed(PixmapPtr pPixmap)
{
ExaMigrationRec pixmaps[1];
pixmaps[0].as_dst = FALSE;
pixmaps[0].as_src = TRUE;
pixmaps[0].pPix = pPixmap;
pixmaps[0].pReg = NULL;
exaDoMigration(pixmaps, 1, TRUE);
}
void
exaDamageReport_mixed(DamagePtr pDamage, RegionPtr pRegion, void *closure)
{
PixmapPtr pPixmap = closure;
ExaPixmapPriv(pPixmap);
/* Move back results of software rendering on system memory copy of mixed driver
* pixmap (see exaPrepareAccessReg_mixed).
*
* Defer moving the destination back into the driver pixmap, to try and save
* overhead on multiple subsequent software fallbacks.
*/
if (!pExaPixmap->use_gpu_copy && exaPixmapHasGpuCopy(pPixmap)) {
ExaScreenPriv(pPixmap->drawable.pScreen);
if (pExaScr->deferred_mixed_pixmap &&
pExaScr->deferred_mixed_pixmap != pPixmap)
exaMoveInPixmap_mixed(pExaScr->deferred_mixed_pixmap);
pExaScr->deferred_mixed_pixmap = pPixmap;
}
}
/* With mixed pixmaps, if we fail to get direct access to the driver pixmap, we
* use the DownloadFromScreen hook to retrieve contents to a copy in system
* memory, perform software rendering on that and move back the results with the
* UploadToScreen hook (see exaDamageReport_mixed).
*/
void
exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg)
{
ExaPixmapPriv(pPixmap);
Bool has_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
Bool success;
success = ExaDoPrepareAccess(pPixmap, index);
if (success && has_gpu_copy && pExaPixmap->pDamage) {
/* You cannot do accelerated operations while a buffer is mapped. */
exaFinishAccess(&pPixmap->drawable, index);
/* Update the gpu view of both deferred destination pixmaps and of
* source pixmaps that were migrated with a bounding region.
*/
exaMoveInPixmap_mixed(pPixmap);
success = ExaDoPrepareAccess(pPixmap, index);
if (success) {
/* We have a gpu pixmap that can be accessed, we don't need the cpu
* copy anymore. Drivers that prefer DFS, should fail prepare
* access.
*/
DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);
DamageDestroy(pExaPixmap->pDamage);
pExaPixmap->pDamage = NULL;
free(pExaPixmap->sys_ptr);
pExaPixmap->sys_ptr = NULL;
return;
}
}
if (!success) {
ExaMigrationRec pixmaps[1];
/* Do we need to allocate our system buffer? */
if (!pExaPixmap->sys_ptr) {
pExaPixmap->sys_ptr = malloc(pExaPixmap->sys_pitch *
pPixmap->drawable.height);
if (!pExaPixmap->sys_ptr)
FatalError("EXA: malloc failed for size %d bytes\n",
pExaPixmap->sys_pitch * pPixmap->drawable.height);
}
if (index == EXA_PREPARE_DEST || index == EXA_PREPARE_AUX_DEST) {
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
} else {
pixmaps[0].as_dst = FALSE;
pixmaps[0].as_src = TRUE;
}
pixmaps[0].pPix = pPixmap;
pixmaps[0].pReg = pReg;
if (!pExaPixmap->pDamage &&
(has_gpu_copy || !exaPixmapIsPinned(pPixmap))) {
Bool as_dst = pixmaps[0].as_dst;
/* Set up damage tracking */
pExaPixmap->pDamage = DamageCreate(exaDamageReport_mixed, NULL,
DamageReportNonEmpty, TRUE,
pPixmap->drawable.pScreen,
pPixmap);
DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage);
/* This ensures that pending damage reflects the current operation. */
/* This is used by exa to optimize migration. */
DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE);
if (has_gpu_copy) {
exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,
pPixmap->drawable.height);
/* We don't know which region of the destination will be damaged,
* have to assume all of it
*/
if (as_dst) {
pixmaps[0].as_dst = FALSE;
pixmaps[0].as_src = TRUE;
pixmaps[0].pReg = NULL;
}
exaCopyDirtyToSys(pixmaps);
}
if (as_dst)
exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,
pPixmap->drawable.height);
} else if (has_gpu_copy)
exaCopyDirtyToSys(pixmaps);
pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
pPixmap->devKind = pExaPixmap->sys_pitch;
pExaPixmap->use_gpu_copy = FALSE;
}
}
|
