Commit | Line | Data |
---|---|---|
a09e091a JB |
1 | /* |
2 | ||
3 | Copyright 1990, 1998 The Open Group | |
4 | ||
5 | Permission to use, copy, modify, distribute, and sell this software and its | |
6 | documentation for any purpose is hereby granted without fee, provided that | |
7 | the above copyright notice appear in all copies and that both that | |
8 | copyright notice and this permission notice appear in supporting | |
9 | documentation. | |
10 | ||
11 | The above copyright notice and this permission notice shall be included | |
12 | in all copies or substantial portions of the Software. | |
13 | ||
14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
15 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
16 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
17 | IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | OTHER DEALINGS IN THE SOFTWARE. | |
21 | ||
22 | Except as contained in this notice, the name of The Open Group shall | |
23 | not be used in advertising or otherwise to promote the sale, use or | |
24 | other dealings in this Software without prior written authorization | |
25 | from The Open Group. | |
26 | ||
27 | */ | |
28 | ||
29 | #ifdef HAVE_DIX_CONFIG_H | |
30 | #include <dix-config.h> | |
31 | #endif | |
32 | ||
33 | #include <X11/X.h> | |
34 | #include "servermd.h" | |
35 | #include "misc.h" | |
36 | #include "mi.h" | |
37 | #include "scrnintstr.h" | |
38 | #include "pixmapstr.h" | |
39 | #include "dix.h" | |
40 | #include "miline.h" | |
41 | #ifdef MITSHM | |
42 | #include <X11/extensions/shm.h> | |
43 | #include "shmint.h" | |
44 | #endif | |
45 | ||
46 | /* We use this structure to propogate some information from miScreenInit to | |
47 | * miCreateScreenResources. miScreenInit allocates the structure, fills it | |
48 | * in, and puts it into pScreen->devPrivate. miCreateScreenResources | |
49 | * extracts the info and frees the structure. We could've accomplished the | |
50 | * same thing by adding fields to the screen structure, but they would have | |
51 | * ended up being redundant, and would have exposed this mi implementation | |
52 | * detail to the whole server. | |
53 | */ | |
54 | ||
55 | typedef struct { | |
56 | pointer pbits; /* pointer to framebuffer */ | |
57 | int width; /* delta to add to a framebuffer addr to move one row down */ | |
58 | } miScreenInitParmsRec, *miScreenInitParmsPtr; | |
59 | ||
60 | /* this plugs into pScreen->ModifyPixmapHeader */ | |
61 | Bool | |
62 | miModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth, | |
63 | int bitsPerPixel, int devKind, pointer pPixData) | |
64 | { | |
65 | if (!pPixmap) | |
66 | return FALSE; | |
67 | ||
68 | /* | |
69 | * If all arguments are specified, reinitialize everything (including | |
70 | * validated state). | |
71 | */ | |
72 | if ((width > 0) && (height > 0) && (depth > 0) && (bitsPerPixel > 0) && | |
73 | (devKind > 0) && pPixData) { | |
74 | pPixmap->drawable.depth = depth; | |
75 | pPixmap->drawable.bitsPerPixel = bitsPerPixel; | |
76 | pPixmap->drawable.id = 0; | |
77 | pPixmap->drawable.x = 0; | |
78 | pPixmap->drawable.y = 0; | |
79 | pPixmap->drawable.width = width; | |
80 | pPixmap->drawable.height = height; | |
81 | pPixmap->devKind = devKind; | |
82 | pPixmap->refcnt = 1; | |
83 | pPixmap->devPrivate.ptr = pPixData; | |
84 | } | |
85 | else { | |
86 | /* | |
87 | * Only modify specified fields, keeping all others intact. | |
88 | */ | |
89 | ||
90 | if (width > 0) | |
91 | pPixmap->drawable.width = width; | |
92 | ||
93 | if (height > 0) | |
94 | pPixmap->drawable.height = height; | |
95 | ||
96 | if (depth > 0) | |
97 | pPixmap->drawable.depth = depth; | |
98 | ||
99 | if (bitsPerPixel > 0) | |
100 | pPixmap->drawable.bitsPerPixel = bitsPerPixel; | |
101 | else if ((bitsPerPixel < 0) && (depth > 0)) | |
102 | pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth); | |
103 | ||
104 | /* | |
105 | * CAVEAT: Non-SI DDXen may use devKind and devPrivate fields for | |
106 | * other purposes. | |
107 | */ | |
108 | if (devKind > 0) | |
109 | pPixmap->devKind = devKind; | |
110 | else if ((devKind < 0) && ((width > 0) || (depth > 0))) | |
111 | pPixmap->devKind = PixmapBytePad(pPixmap->drawable.width, | |
112 | pPixmap->drawable.depth); | |
113 | ||
114 | if (pPixData) | |
115 | pPixmap->devPrivate.ptr = pPixData; | |
116 | } | |
117 | pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER; | |
118 | return TRUE; | |
119 | } | |
120 | ||
121 | static Bool | |
122 | miCloseScreen(ScreenPtr pScreen) | |
123 | { | |
124 | return ((*pScreen->DestroyPixmap) ((PixmapPtr) pScreen->devPrivate)); | |
125 | } | |
126 | ||
127 | /* With the introduction of pixmap privates, the "screen pixmap" can no | |
128 | * longer be created in miScreenInit, since all the modules that could | |
129 | * possibly ask for pixmap private space have not been initialized at | |
130 | * that time. pScreen->CreateScreenResources is called after all | |
131 | * possible private-requesting modules have been inited; we create the | |
132 | * screen pixmap here. | |
133 | */ | |
134 | Bool | |
135 | miCreateScreenResources(ScreenPtr pScreen) | |
136 | { | |
137 | miScreenInitParmsPtr pScrInitParms; | |
138 | pointer value; | |
139 | ||
140 | pScrInitParms = (miScreenInitParmsPtr) pScreen->devPrivate; | |
141 | ||
142 | /* if width is non-zero, pScreen->devPrivate will be a pixmap | |
143 | * else it will just take the value pbits | |
144 | */ | |
145 | if (pScrInitParms->width) { | |
146 | PixmapPtr pPixmap; | |
147 | ||
148 | /* create a pixmap with no data, then redirect it to point to | |
149 | * the screen | |
150 | */ | |
151 | pPixmap = | |
152 | (*pScreen->CreatePixmap) (pScreen, 0, 0, pScreen->rootDepth, 0); | |
153 | if (!pPixmap) | |
154 | return FALSE; | |
155 | ||
156 | if (!(*pScreen->ModifyPixmapHeader) (pPixmap, pScreen->width, | |
157 | pScreen->height, | |
158 | pScreen->rootDepth, | |
159 | BitsPerPixel(pScreen->rootDepth), | |
160 | PixmapBytePad(pScrInitParms->width, | |
161 | pScreen->rootDepth), | |
162 | pScrInitParms->pbits)) | |
163 | return FALSE; | |
164 | value = (pointer) pPixmap; | |
165 | } | |
166 | else { | |
167 | value = pScrInitParms->pbits; | |
168 | } | |
169 | free(pScreen->devPrivate); /* freeing miScreenInitParmsRec */ | |
170 | pScreen->devPrivate = value; /* pPixmap or pbits */ | |
171 | return TRUE; | |
172 | } | |
173 | ||
174 | Bool | |
175 | miScreenDevPrivateInit(ScreenPtr pScreen, int width, pointer pbits) | |
176 | { | |
177 | miScreenInitParmsPtr pScrInitParms; | |
178 | ||
179 | /* Stash pbits and width in a short-lived miScreenInitParmsRec attached | |
180 | * to the screen, until CreateScreenResources can put them in the | |
181 | * screen pixmap. | |
182 | */ | |
183 | pScrInitParms = malloc(sizeof(miScreenInitParmsRec)); | |
184 | if (!pScrInitParms) | |
185 | return FALSE; | |
186 | pScrInitParms->pbits = pbits; | |
187 | pScrInitParms->width = width; | |
188 | pScreen->devPrivate = (pointer) pScrInitParms; | |
189 | return TRUE; | |
190 | } | |
191 | ||
192 | static PixmapPtr | |
193 | miGetScreenPixmap(ScreenPtr pScreen) | |
194 | { | |
195 | return (PixmapPtr) (pScreen->devPrivate); | |
196 | } | |
197 | ||
198 | static void | |
199 | miSetScreenPixmap(PixmapPtr pPix) | |
200 | { | |
201 | if (pPix) | |
202 | pPix->drawable.pScreen->devPrivate = (pointer) pPix; | |
203 | } | |
204 | ||
205 | Bool | |
206 | miScreenInit(ScreenPtr pScreen, pointer pbits, /* pointer to screen bits */ | |
207 | int xsize, int ysize, /* in pixels */ | |
208 | int dpix, int dpiy, /* dots per inch */ | |
209 | int width, /* pixel width of frame buffer */ | |
210 | int rootDepth, /* depth of root window */ | |
211 | int numDepths, /* number of depths supported */ | |
212 | DepthRec * depths, /* supported depths */ | |
213 | VisualID rootVisual, /* root visual */ | |
214 | int numVisuals, /* number of visuals supported */ | |
215 | VisualRec * visuals /* supported visuals */ | |
216 | ) | |
217 | { | |
218 | pScreen->width = xsize; | |
219 | pScreen->height = ysize; | |
220 | pScreen->mmWidth = (xsize * 254 + dpix * 5) / (dpix * 10); | |
221 | pScreen->mmHeight = (ysize * 254 + dpiy * 5) / (dpiy * 10); | |
222 | pScreen->numDepths = numDepths; | |
223 | pScreen->rootDepth = rootDepth; | |
224 | pScreen->allowedDepths = depths; | |
225 | pScreen->rootVisual = rootVisual; | |
226 | /* defColormap */ | |
227 | pScreen->minInstalledCmaps = 1; | |
228 | pScreen->maxInstalledCmaps = 1; | |
229 | pScreen->backingStoreSupport = NotUseful; | |
230 | pScreen->saveUnderSupport = NotUseful; | |
231 | /* whitePixel, blackPixel */ | |
232 | pScreen->ModifyPixmapHeader = miModifyPixmapHeader; | |
233 | pScreen->CreateScreenResources = miCreateScreenResources; | |
234 | pScreen->GetScreenPixmap = miGetScreenPixmap; | |
235 | pScreen->SetScreenPixmap = miSetScreenPixmap; | |
236 | pScreen->numVisuals = numVisuals; | |
237 | pScreen->visuals = visuals; | |
238 | if (width) { | |
239 | #ifdef MITSHM | |
240 | ShmRegisterFbFuncs(pScreen); | |
241 | #endif | |
242 | pScreen->CloseScreen = miCloseScreen; | |
243 | } | |
244 | /* else CloseScreen */ | |
245 | /* QueryBestSize, SaveScreen, GetImage, GetSpans */ | |
246 | pScreen->SourceValidate = (SourceValidateProcPtr) 0; | |
247 | /* CreateWindow, DestroyWindow, PositionWindow, ChangeWindowAttributes */ | |
248 | /* RealizeWindow, UnrealizeWindow */ | |
249 | pScreen->ValidateTree = miValidateTree; | |
250 | pScreen->PostValidateTree = (PostValidateTreeProcPtr) 0; | |
251 | pScreen->WindowExposures = miWindowExposures; | |
252 | /* CopyWindow */ | |
253 | pScreen->ClearToBackground = miClearToBackground; | |
254 | pScreen->ClipNotify = (ClipNotifyProcPtr) 0; | |
255 | pScreen->RestackWindow = (RestackWindowProcPtr) 0; | |
256 | /* CreatePixmap, DestroyPixmap */ | |
257 | /* RealizeFont, UnrealizeFont */ | |
258 | /* CreateGC */ | |
259 | /* CreateColormap, DestroyColormap, InstallColormap, UninstallColormap */ | |
260 | /* ListInstalledColormaps, StoreColors, ResolveColor */ | |
261 | /* BitmapToRegion */ | |
262 | pScreen->SendGraphicsExpose = miSendGraphicsExpose; | |
263 | pScreen->BlockHandler = (ScreenBlockHandlerProcPtr) NoopDDA; | |
264 | pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr) NoopDDA; | |
265 | pScreen->MarkWindow = miMarkWindow; | |
266 | pScreen->MarkOverlappedWindows = miMarkOverlappedWindows; | |
267 | pScreen->MoveWindow = miMoveWindow; | |
268 | pScreen->ResizeWindow = miSlideAndSizeWindow; | |
269 | pScreen->GetLayerWindow = miGetLayerWindow; | |
270 | pScreen->HandleExposures = miHandleValidateExposures; | |
271 | pScreen->ReparentWindow = (ReparentWindowProcPtr) 0; | |
272 | pScreen->ChangeBorderWidth = miChangeBorderWidth; | |
273 | pScreen->SetShape = miSetShape; | |
274 | pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow; | |
275 | ||
276 | miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS); | |
277 | ||
278 | return miScreenDevPrivateInit(pScreen, width, pbits); | |
279 | } | |
280 | ||
281 | DevPrivateKeyRec miZeroLineScreenKeyRec; | |
282 | ||
283 | void | |
284 | miSetZeroLineBias(ScreenPtr pScreen, unsigned int bias) | |
285 | { | |
286 | if (!dixRegisterPrivateKey(&miZeroLineScreenKeyRec, PRIVATE_SCREEN, 0)) | |
287 | return; | |
288 | ||
289 | dixSetPrivate(&pScreen->devPrivates, miZeroLineScreenKey, | |
290 | (unsigned long *) (unsigned long) bias); | |
291 | } |