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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 | /* This file holds the driver allocated pixmaps specific implementation. */ | |
35 | ||
36 | static _X_INLINE void * | |
37 | ExaGetPixmapAddress(PixmapPtr p) | |
38 | { | |
39 | ExaPixmapPriv(p); | |
40 | ||
41 | return pExaPixmap->sys_ptr; | |
42 | } | |
43 | ||
44 | /** | |
45 | * exaCreatePixmap() creates a new pixmap. | |
46 | * | |
47 | * Pixmaps are always marked as pinned, because exa has no control over them. | |
48 | */ | |
49 | PixmapPtr | |
50 | exaCreatePixmap_driver(ScreenPtr pScreen, int w, int h, int depth, | |
51 | unsigned usage_hint) | |
52 | { | |
53 | PixmapPtr pPixmap; | |
54 | ExaPixmapPrivPtr pExaPixmap; | |
55 | int bpp; | |
56 | size_t paddedWidth, datasize; | |
57 | ||
58 | ExaScreenPriv(pScreen); | |
59 | ||
60 | if (w > 32767 || h > 32767) | |
61 | return NullPixmap; | |
62 | ||
63 | swap(pExaScr, pScreen, CreatePixmap); | |
64 | pPixmap = pScreen->CreatePixmap(pScreen, 0, 0, depth, usage_hint); | |
65 | swap(pExaScr, pScreen, CreatePixmap); | |
66 | ||
67 | if (!pPixmap) | |
68 | return NULL; | |
69 | ||
70 | pExaPixmap = ExaGetPixmapPriv(pPixmap); | |
71 | pExaPixmap->driverPriv = NULL; | |
72 | ||
73 | bpp = pPixmap->drawable.bitsPerPixel; | |
74 | ||
75 | /* Set this before driver hooks, to allow for driver pixmaps without gpu | |
76 | * memory to back it. These pixmaps have a valid pointer at all times. | |
77 | */ | |
78 | pPixmap->devPrivate.ptr = NULL; | |
79 | ||
80 | if (pExaScr->info->CreatePixmap2) { | |
81 | int new_pitch = 0; | |
82 | ||
83 | pExaPixmap->driverPriv = | |
84 | pExaScr->info->CreatePixmap2(pScreen, w, h, depth, usage_hint, bpp, | |
85 | &new_pitch); | |
86 | paddedWidth = pExaPixmap->fb_pitch = new_pitch; | |
87 | } | |
88 | else { | |
89 | paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits); | |
90 | if (paddedWidth / 4 > 32767 || h > 32767) | |
91 | return NullPixmap; | |
92 | ||
93 | exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp); | |
94 | ||
95 | if (paddedWidth < pExaPixmap->fb_pitch) | |
96 | paddedWidth = pExaPixmap->fb_pitch; | |
97 | datasize = h * paddedWidth; | |
98 | pExaPixmap->driverPriv = | |
99 | pExaScr->info->CreatePixmap(pScreen, datasize, 0); | |
100 | } | |
101 | ||
102 | if (!pExaPixmap->driverPriv) { | |
103 | swap(pExaScr, pScreen, DestroyPixmap); | |
104 | pScreen->DestroyPixmap(pPixmap); | |
105 | swap(pExaScr, pScreen, DestroyPixmap); | |
106 | return NULL; | |
107 | } | |
108 | ||
109 | /* Allow ModifyPixmapHeader to set sys_ptr appropriately. */ | |
110 | pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED; | |
111 | pExaPixmap->fb_ptr = NULL; | |
112 | pExaPixmap->pDamage = NULL; | |
113 | pExaPixmap->sys_ptr = NULL; | |
114 | ||
115 | (*pScreen->ModifyPixmapHeader) (pPixmap, w, h, 0, 0, paddedWidth, NULL); | |
116 | ||
117 | pExaPixmap->area = NULL; | |
118 | ||
119 | exaSetAccelBlock(pExaScr, pExaPixmap, w, h, bpp); | |
120 | ||
121 | pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap); | |
122 | ||
123 | /* During a fallback we must prepare access. */ | |
124 | if (pExaScr->fallback_counter) | |
125 | exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST); | |
126 | ||
127 | return pPixmap; | |
128 | } | |
129 | ||
130 | Bool | |
131 | exaModifyPixmapHeader_driver(PixmapPtr pPixmap, int width, int height, | |
132 | int depth, int bitsPerPixel, int devKind, | |
133 | pointer pPixData) | |
134 | { | |
135 | ScreenPtr pScreen; | |
136 | ExaScreenPrivPtr pExaScr; | |
137 | ExaPixmapPrivPtr pExaPixmap; | |
138 | Bool ret; | |
139 | ||
140 | if (!pPixmap) | |
141 | return FALSE; | |
142 | ||
143 | pScreen = pPixmap->drawable.pScreen; | |
144 | pExaScr = ExaGetScreenPriv(pScreen); | |
145 | pExaPixmap = ExaGetPixmapPriv(pPixmap); | |
146 | ||
147 | if (pExaPixmap) { | |
148 | if (pPixData) | |
149 | pExaPixmap->sys_ptr = pPixData; | |
150 | ||
151 | if (devKind > 0) | |
152 | pExaPixmap->sys_pitch = devKind; | |
153 | ||
154 | if (width > 0 && height > 0 && bitsPerPixel > 0) { | |
155 | exaSetFbPitch(pExaScr, pExaPixmap, width, height, bitsPerPixel); | |
156 | ||
157 | exaSetAccelBlock(pExaScr, pExaPixmap, width, height, bitsPerPixel); | |
158 | } | |
159 | } | |
160 | ||
161 | if (pExaScr->info->ModifyPixmapHeader) { | |
162 | ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth, | |
163 | bitsPerPixel, devKind, | |
164 | pPixData); | |
165 | /* For EXA_HANDLES_PIXMAPS, we set pPixData to NULL. | |
166 | * If pPixmap->devPrivate.ptr is non-NULL, then we've got a | |
167 | * !has_gpu_copy pixmap. We need to store the pointer, | |
168 | * because PrepareAccess won't be called. | |
169 | */ | |
170 | if (!pPixData && pPixmap->devPrivate.ptr && pPixmap->devKind) { | |
171 | pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr; | |
172 | pExaPixmap->sys_pitch = pPixmap->devKind; | |
173 | } | |
174 | if (ret == TRUE) | |
175 | goto out; | |
176 | } | |
177 | ||
178 | swap(pExaScr, pScreen, ModifyPixmapHeader); | |
179 | ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth, | |
180 | bitsPerPixel, devKind, pPixData); | |
181 | swap(pExaScr, pScreen, ModifyPixmapHeader); | |
182 | ||
183 | out: | |
184 | /* Always NULL this, we don't want lingering pointers. */ | |
185 | pPixmap->devPrivate.ptr = NULL; | |
186 | ||
187 | return ret; | |
188 | } | |
189 | ||
190 | Bool | |
191 | exaDestroyPixmap_driver(PixmapPtr pPixmap) | |
192 | { | |
193 | ScreenPtr pScreen = pPixmap->drawable.pScreen; | |
194 | ||
195 | ExaScreenPriv(pScreen); | |
196 | Bool ret; | |
197 | ||
198 | if (pPixmap->refcnt == 1) { | |
199 | ExaPixmapPriv(pPixmap); | |
200 | ||
201 | exaDestroyPixmap(pPixmap); | |
202 | ||
203 | if (pExaPixmap->driverPriv) | |
204 | pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv); | |
205 | pExaPixmap->driverPriv = NULL; | |
206 | } | |
207 | ||
208 | swap(pExaScr, pScreen, DestroyPixmap); | |
209 | ret = pScreen->DestroyPixmap(pPixmap); | |
210 | swap(pExaScr, pScreen, DestroyPixmap); | |
211 | ||
212 | return ret; | |
213 | } | |
214 | ||
215 | Bool | |
216 | exaPixmapHasGpuCopy_driver(PixmapPtr pPixmap) | |
217 | { | |
218 | ScreenPtr pScreen = pPixmap->drawable.pScreen; | |
219 | ||
220 | ExaScreenPriv(pScreen); | |
221 | pointer saved_ptr; | |
222 | Bool ret; | |
223 | ||
224 | saved_ptr = pPixmap->devPrivate.ptr; | |
225 | pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap); | |
226 | ret = pExaScr->info->PixmapIsOffscreen(pPixmap); | |
227 | pPixmap->devPrivate.ptr = saved_ptr; | |
228 | ||
229 | return ret; | |
230 | } |