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a09e091a JB |
1 | /* |
2 | * Copyright © 2009 Maarten Maathuis | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
21 | * SOFTWARE. | |
22 | * | |
23 | */ | |
24 | ||
25 | #ifdef HAVE_DIX_CONFIG_H | |
26 | #include <dix-config.h> | |
27 | #endif | |
28 | ||
29 | #include <string.h> | |
30 | ||
31 | #include "exa_priv.h" | |
32 | #include "exa.h" | |
33 | ||
34 | void | |
35 | exaCreateDriverPixmap_mixed(PixmapPtr pPixmap) | |
36 | { | |
37 | ScreenPtr pScreen = pPixmap->drawable.pScreen; | |
38 | ||
39 | ExaScreenPriv(pScreen); | |
40 | ExaPixmapPriv(pPixmap); | |
41 | int w = pPixmap->drawable.width, h = pPixmap->drawable.height; | |
42 | int depth = pPixmap->drawable.depth, bpp = pPixmap->drawable.bitsPerPixel; | |
43 | int usage_hint = pPixmap->usage_hint; | |
44 | int paddedWidth = pExaPixmap->sys_pitch; | |
45 | ||
46 | /* Already done. */ | |
47 | if (pExaPixmap->driverPriv) | |
48 | return; | |
49 | ||
50 | if (exaPixmapIsPinned(pPixmap)) | |
51 | return; | |
52 | ||
53 | /* Can't accel 1/4 bpp. */ | |
54 | if (pExaPixmap->accel_blocked || bpp < 8) | |
55 | return; | |
56 | ||
57 | if (pExaScr->info->CreatePixmap2) { | |
58 | int new_pitch = 0; | |
59 | ||
60 | pExaPixmap->driverPriv = | |
61 | pExaScr->info->CreatePixmap2(pScreen, w, h, depth, usage_hint, bpp, | |
62 | &new_pitch); | |
63 | paddedWidth = pExaPixmap->fb_pitch = new_pitch; | |
64 | } | |
65 | else { | |
66 | if (paddedWidth < pExaPixmap->fb_pitch) | |
67 | paddedWidth = pExaPixmap->fb_pitch; | |
68 | pExaPixmap->driverPriv = | |
69 | pExaScr->info->CreatePixmap(pScreen, paddedWidth * h, 0); | |
70 | } | |
71 | ||
72 | if (!pExaPixmap->driverPriv) | |
73 | return; | |
74 | ||
75 | (*pScreen->ModifyPixmapHeader) (pPixmap, w, h, 0, 0, paddedWidth, NULL); | |
76 | } | |
77 | ||
78 | void | |
79 | exaDoMigration_mixed(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel) | |
80 | { | |
81 | int i; | |
82 | ||
83 | /* If anything is pinned in system memory, we won't be able to | |
84 | * accelerate. | |
85 | */ | |
86 | for (i = 0; i < npixmaps; i++) { | |
87 | if (exaPixmapIsPinned(pixmaps[i].pPix) && | |
88 | !exaPixmapHasGpuCopy(pixmaps[i].pPix)) { | |
89 | can_accel = FALSE; | |
90 | break; | |
91 | } | |
92 | } | |
93 | ||
94 | /* We can do nothing. */ | |
95 | if (!can_accel) | |
96 | return; | |
97 | ||
98 | for (i = 0; i < npixmaps; i++) { | |
99 | PixmapPtr pPixmap = pixmaps[i].pPix; | |
100 | ||
101 | ExaPixmapPriv(pPixmap); | |
102 | ||
103 | if (!pExaPixmap->driverPriv) | |
104 | exaCreateDriverPixmap_mixed(pPixmap); | |
105 | ||
106 | if (pExaPixmap->pDamage && exaPixmapHasGpuCopy(pPixmap)) { | |
107 | ExaScreenPriv(pPixmap->drawable.pScreen); | |
108 | ||
109 | /* This pitch is needed for proper acceleration. For some reason | |
110 | * there are pixmaps without pDamage and a bad fb_pitch value. | |
111 | * So setting devKind when only exaPixmapHasGpuCopy() is true | |
112 | * causes corruption. Pixmaps without pDamage are not migrated | |
113 | * and should have a valid devKind at all times, so that's why this | |
114 | * isn't causing problems. Pixmaps have their gpu pitch set the | |
115 | * first time in the MPH call from exaCreateDriverPixmap_mixed(). | |
116 | */ | |
117 | pPixmap->devKind = pExaPixmap->fb_pitch; | |
118 | exaCopyDirtyToFb(pixmaps + i); | |
119 | ||
120 | if (pExaScr->deferred_mixed_pixmap == pPixmap && | |
121 | !pixmaps[i].as_dst && !pixmaps[i].pReg) | |
122 | pExaScr->deferred_mixed_pixmap = NULL; | |
123 | } | |
124 | ||
125 | pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap); | |
126 | } | |
127 | } | |
128 | ||
129 | void | |
130 | exaMoveInPixmap_mixed(PixmapPtr pPixmap) | |
131 | { | |
132 | ExaMigrationRec pixmaps[1]; | |
133 | ||
134 | pixmaps[0].as_dst = FALSE; | |
135 | pixmaps[0].as_src = TRUE; | |
136 | pixmaps[0].pPix = pPixmap; | |
137 | pixmaps[0].pReg = NULL; | |
138 | ||
139 | exaDoMigration(pixmaps, 1, TRUE); | |
140 | } | |
141 | ||
142 | void | |
143 | exaDamageReport_mixed(DamagePtr pDamage, RegionPtr pRegion, void *closure) | |
144 | { | |
145 | PixmapPtr pPixmap = closure; | |
146 | ||
147 | ExaPixmapPriv(pPixmap); | |
148 | ||
149 | /* Move back results of software rendering on system memory copy of mixed driver | |
150 | * pixmap (see exaPrepareAccessReg_mixed). | |
151 | * | |
152 | * Defer moving the destination back into the driver pixmap, to try and save | |
153 | * overhead on multiple subsequent software fallbacks. | |
154 | */ | |
155 | if (!pExaPixmap->use_gpu_copy && exaPixmapHasGpuCopy(pPixmap)) { | |
156 | ExaScreenPriv(pPixmap->drawable.pScreen); | |
157 | ||
158 | if (pExaScr->deferred_mixed_pixmap && | |
159 | pExaScr->deferred_mixed_pixmap != pPixmap) | |
160 | exaMoveInPixmap_mixed(pExaScr->deferred_mixed_pixmap); | |
161 | pExaScr->deferred_mixed_pixmap = pPixmap; | |
162 | } | |
163 | } | |
164 | ||
165 | /* With mixed pixmaps, if we fail to get direct access to the driver pixmap, we | |
166 | * use the DownloadFromScreen hook to retrieve contents to a copy in system | |
167 | * memory, perform software rendering on that and move back the results with the | |
168 | * UploadToScreen hook (see exaDamageReport_mixed). | |
169 | */ | |
170 | void | |
171 | exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg) | |
172 | { | |
173 | ExaPixmapPriv(pPixmap); | |
174 | Bool has_gpu_copy = exaPixmapHasGpuCopy(pPixmap); | |
175 | Bool success; | |
176 | ||
177 | success = ExaDoPrepareAccess(pPixmap, index); | |
178 | ||
179 | if (success && has_gpu_copy && pExaPixmap->pDamage) { | |
180 | /* You cannot do accelerated operations while a buffer is mapped. */ | |
181 | exaFinishAccess(&pPixmap->drawable, index); | |
182 | /* Update the gpu view of both deferred destination pixmaps and of | |
183 | * source pixmaps that were migrated with a bounding region. | |
184 | */ | |
185 | exaMoveInPixmap_mixed(pPixmap); | |
186 | success = ExaDoPrepareAccess(pPixmap, index); | |
187 | ||
188 | if (success) { | |
189 | /* We have a gpu pixmap that can be accessed, we don't need the cpu | |
190 | * copy anymore. Drivers that prefer DFS, should fail prepare | |
191 | * access. | |
192 | */ | |
193 | DamageDestroy(pExaPixmap->pDamage); | |
194 | pExaPixmap->pDamage = NULL; | |
195 | ||
196 | free(pExaPixmap->sys_ptr); | |
197 | pExaPixmap->sys_ptr = NULL; | |
198 | ||
199 | return; | |
200 | } | |
201 | } | |
202 | ||
203 | if (!success) { | |
204 | ExaMigrationRec pixmaps[1]; | |
205 | ||
206 | /* Do we need to allocate our system buffer? */ | |
207 | if (!pExaPixmap->sys_ptr) { | |
208 | pExaPixmap->sys_ptr = malloc(pExaPixmap->sys_pitch * | |
209 | pPixmap->drawable.height); | |
210 | if (!pExaPixmap->sys_ptr) | |
211 | FatalError("EXA: malloc failed for size %d bytes\n", | |
212 | pExaPixmap->sys_pitch * pPixmap->drawable.height); | |
213 | } | |
214 | ||
215 | if (index == EXA_PREPARE_DEST || index == EXA_PREPARE_AUX_DEST) { | |
216 | pixmaps[0].as_dst = TRUE; | |
217 | pixmaps[0].as_src = FALSE; | |
218 | } | |
219 | else { | |
220 | pixmaps[0].as_dst = FALSE; | |
221 | pixmaps[0].as_src = TRUE; | |
222 | } | |
223 | pixmaps[0].pPix = pPixmap; | |
224 | pixmaps[0].pReg = pReg; | |
225 | ||
226 | if (!pExaPixmap->pDamage && | |
227 | (has_gpu_copy || !exaPixmapIsPinned(pPixmap))) { | |
228 | Bool as_dst = pixmaps[0].as_dst; | |
229 | ||
230 | /* Set up damage tracking */ | |
231 | pExaPixmap->pDamage = DamageCreate(exaDamageReport_mixed, NULL, | |
232 | DamageReportNonEmpty, TRUE, | |
233 | pPixmap->drawable.pScreen, | |
234 | pPixmap); | |
235 | ||
236 | if (pExaPixmap->pDamage) { | |
237 | DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage); | |
238 | /* This ensures that pending damage reflects the current | |
239 | * operation. This is used by exa to optimize migration. | |
240 | */ | |
241 | DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE); | |
242 | } | |
243 | ||
244 | if (has_gpu_copy) { | |
245 | exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width, | |
246 | pPixmap->drawable.height); | |
247 | ||
248 | /* We don't know which region of the destination will be damaged, | |
249 | * have to assume all of it | |
250 | */ | |
251 | if (as_dst) { | |
252 | pixmaps[0].as_dst = FALSE; | |
253 | pixmaps[0].as_src = TRUE; | |
254 | pixmaps[0].pReg = NULL; | |
255 | } | |
256 | exaCopyDirtyToSys(pixmaps); | |
257 | } | |
258 | ||
259 | if (as_dst) | |
260 | exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width, | |
261 | pPixmap->drawable.height); | |
262 | } | |
263 | else if (has_gpu_copy) | |
264 | exaCopyDirtyToSys(pixmaps); | |
265 | ||
266 | pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr; | |
267 | pPixmap->devKind = pExaPixmap->sys_pitch; | |
268 | pExaPixmap->use_gpu_copy = FALSE; | |
269 | } | |
270 | } |