| 1 | /* |
| 2 | * Copyright © 2006 Keith Packard |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 5 | * documentation for any purpose is hereby granted without fee, provided that |
| 6 | * the above copyright notice appear in all copies and that both that copyright |
| 7 | * notice and this permission notice appear in supporting documentation, and |
| 8 | * that the name of the copyright holders not be used in advertising or |
| 9 | * publicity pertaining to distribution of the software without specific, |
| 10 | * written prior permission. The copyright holders make no representations |
| 11 | * about the suitability of this software for any purpose. It is provided "as |
| 12 | * is" without express or implied warranty. |
| 13 | * |
| 14 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 16 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| 20 | * OF THIS SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #include "randrstr.h" |
| 24 | |
| 25 | #ifdef RANDR_10_INTERFACE |
| 26 | static RRModePtr |
| 27 | RROldModeAdd(RROutputPtr output, RRScreenSizePtr size, int refresh) |
| 28 | { |
| 29 | ScreenPtr pScreen = output->pScreen; |
| 30 | |
| 31 | rrScrPriv(pScreen); |
| 32 | xRRModeInfo modeInfo; |
| 33 | char name[100]; |
| 34 | RRModePtr mode; |
| 35 | int i; |
| 36 | RRModePtr *modes; |
| 37 | |
| 38 | memset(&modeInfo, '\0', sizeof(modeInfo)); |
| 39 | snprintf(name, sizeof(name), "%dx%d", size->width, size->height); |
| 40 | |
| 41 | modeInfo.width = size->width; |
| 42 | modeInfo.height = size->height; |
| 43 | modeInfo.hTotal = size->width; |
| 44 | modeInfo.vTotal = size->height; |
| 45 | modeInfo.dotClock = ((CARD32) size->width * (CARD32) size->height * |
| 46 | (CARD32) refresh); |
| 47 | modeInfo.nameLength = strlen(name); |
| 48 | mode = RRModeGet(&modeInfo, name); |
| 49 | if (!mode) |
| 50 | return NULL; |
| 51 | for (i = 0; i < output->numModes; i++) |
| 52 | if (output->modes[i] == mode) { |
| 53 | RRModeDestroy(mode); |
| 54 | return mode; |
| 55 | } |
| 56 | |
| 57 | if (output->numModes) |
| 58 | modes = realloc(output->modes, |
| 59 | (output->numModes + 1) * sizeof(RRModePtr)); |
| 60 | else |
| 61 | modes = malloc(sizeof(RRModePtr)); |
| 62 | if (!modes) { |
| 63 | RRModeDestroy(mode); |
| 64 | FreeResource(mode->mode.id, 0); |
| 65 | return NULL; |
| 66 | } |
| 67 | modes[output->numModes++] = mode; |
| 68 | output->modes = modes; |
| 69 | output->changed = TRUE; |
| 70 | pScrPriv->changed = TRUE; |
| 71 | pScrPriv->configChanged = TRUE; |
| 72 | return mode; |
| 73 | } |
| 74 | |
| 75 | static void |
| 76 | RRScanOldConfig(ScreenPtr pScreen, Rotation rotations) |
| 77 | { |
| 78 | rrScrPriv(pScreen); |
| 79 | RROutputPtr output; |
| 80 | RRCrtcPtr crtc; |
| 81 | RRModePtr mode, newMode = NULL; |
| 82 | int i; |
| 83 | CARD16 minWidth = MAXSHORT, minHeight = MAXSHORT; |
| 84 | CARD16 maxWidth = 0, maxHeight = 0; |
| 85 | CARD16 width, height; |
| 86 | |
| 87 | /* |
| 88 | * First time through, create a crtc and output and hook |
| 89 | * them together |
| 90 | */ |
| 91 | if (pScrPriv->numOutputs == 0 && pScrPriv->numCrtcs == 0) { |
| 92 | crtc = RRCrtcCreate(pScreen, NULL); |
| 93 | if (!crtc) |
| 94 | return; |
| 95 | output = RROutputCreate(pScreen, "default", 7, NULL); |
| 96 | if (!output) |
| 97 | return; |
| 98 | RROutputSetCrtcs(output, &crtc, 1); |
| 99 | RROutputSetConnection(output, RR_Connected); |
| 100 | RROutputSetSubpixelOrder(output, PictureGetSubpixelOrder(pScreen)); |
| 101 | } |
| 102 | |
| 103 | output = pScrPriv->outputs[0]; |
| 104 | if (!output) |
| 105 | return; |
| 106 | crtc = pScrPriv->crtcs[0]; |
| 107 | if (!crtc) |
| 108 | return; |
| 109 | |
| 110 | /* check rotations */ |
| 111 | if (rotations != crtc->rotations) { |
| 112 | crtc->rotations = rotations; |
| 113 | crtc->changed = TRUE; |
| 114 | pScrPriv->changed = TRUE; |
| 115 | } |
| 116 | |
| 117 | /* regenerate mode list */ |
| 118 | for (i = 0; i < pScrPriv->nSizes; i++) { |
| 119 | RRScreenSizePtr size = &pScrPriv->pSizes[i]; |
| 120 | int r; |
| 121 | |
| 122 | if (size->nRates) { |
| 123 | for (r = 0; r < size->nRates; r++) { |
| 124 | mode = RROldModeAdd(output, size, size->pRates[r].rate); |
| 125 | if (i == pScrPriv->size && |
| 126 | size->pRates[r].rate == pScrPriv->rate) { |
| 127 | newMode = mode; |
| 128 | } |
| 129 | } |
| 130 | free(size->pRates); |
| 131 | } |
| 132 | else { |
| 133 | mode = RROldModeAdd(output, size, 0); |
| 134 | if (i == pScrPriv->size) |
| 135 | newMode = mode; |
| 136 | } |
| 137 | } |
| 138 | if (pScrPriv->nSizes) |
| 139 | free(pScrPriv->pSizes); |
| 140 | pScrPriv->pSizes = NULL; |
| 141 | pScrPriv->nSizes = 0; |
| 142 | |
| 143 | /* find size bounds */ |
| 144 | for (i = 0; i < output->numModes + output->numUserModes; i++) { |
| 145 | mode = (i < output->numModes ? |
| 146 | output->modes[i] : |
| 147 | output->userModes[i - output->numModes]); |
| 148 | width = mode->mode.width; |
| 149 | height = mode->mode.height; |
| 150 | |
| 151 | if (width < minWidth) |
| 152 | minWidth = width; |
| 153 | if (width > maxWidth) |
| 154 | maxWidth = width; |
| 155 | if (height < minHeight) |
| 156 | minHeight = height; |
| 157 | if (height > maxHeight) |
| 158 | maxHeight = height; |
| 159 | } |
| 160 | |
| 161 | RRScreenSetSizeRange(pScreen, minWidth, minHeight, maxWidth, maxHeight); |
| 162 | |
| 163 | /* notice current mode */ |
| 164 | if (newMode) |
| 165 | RRCrtcNotify(crtc, newMode, 0, 0, pScrPriv->rotation, NULL, 1, &output); |
| 166 | } |
| 167 | #endif |
| 168 | |
| 169 | /* |
| 170 | * Poll the driver for changed information |
| 171 | */ |
| 172 | Bool |
| 173 | RRGetInfo(ScreenPtr pScreen, Bool force_query) |
| 174 | { |
| 175 | rrScrPriv(pScreen); |
| 176 | Rotation rotations; |
| 177 | int i; |
| 178 | |
| 179 | /* Return immediately if we don't need to re-query and we already have the |
| 180 | * information. |
| 181 | */ |
| 182 | if (!force_query) { |
| 183 | if (pScrPriv->numCrtcs != 0 || pScrPriv->numOutputs != 0) |
| 184 | return TRUE; |
| 185 | } |
| 186 | |
| 187 | for (i = 0; i < pScrPriv->numOutputs; i++) |
| 188 | pScrPriv->outputs[i]->changed = FALSE; |
| 189 | for (i = 0; i < pScrPriv->numCrtcs; i++) |
| 190 | pScrPriv->crtcs[i]->changed = FALSE; |
| 191 | |
| 192 | rotations = 0; |
| 193 | pScrPriv->changed = FALSE; |
| 194 | pScrPriv->configChanged = FALSE; |
| 195 | |
| 196 | if (!(*pScrPriv->rrGetInfo) (pScreen, &rotations)) |
| 197 | return FALSE; |
| 198 | |
| 199 | #if RANDR_10_INTERFACE |
| 200 | if (pScrPriv->nSizes) |
| 201 | RRScanOldConfig(pScreen, rotations); |
| 202 | #endif |
| 203 | RRTellChanged(pScreen); |
| 204 | return TRUE; |
| 205 | } |
| 206 | |
| 207 | /* |
| 208 | * Register the range of sizes for the screen |
| 209 | */ |
| 210 | void |
| 211 | RRScreenSetSizeRange(ScreenPtr pScreen, |
| 212 | CARD16 minWidth, |
| 213 | CARD16 minHeight, CARD16 maxWidth, CARD16 maxHeight) |
| 214 | { |
| 215 | rrScrPriv(pScreen); |
| 216 | |
| 217 | if (!pScrPriv) |
| 218 | return; |
| 219 | if (pScrPriv->minWidth == minWidth && pScrPriv->minHeight == minHeight && |
| 220 | pScrPriv->maxWidth == maxWidth && pScrPriv->maxHeight == maxHeight) { |
| 221 | return; |
| 222 | } |
| 223 | |
| 224 | pScrPriv->minWidth = minWidth; |
| 225 | pScrPriv->minHeight = minHeight; |
| 226 | pScrPriv->maxWidth = maxWidth; |
| 227 | pScrPriv->maxHeight = maxHeight; |
| 228 | RRSetChanged(pScreen); |
| 229 | pScrPriv->configChanged = TRUE; |
| 230 | } |
| 231 | |
| 232 | #ifdef RANDR_10_INTERFACE |
| 233 | static Bool |
| 234 | RRScreenSizeMatches(RRScreenSizePtr a, RRScreenSizePtr b) |
| 235 | { |
| 236 | if (a->width != b->width) |
| 237 | return FALSE; |
| 238 | if (a->height != b->height) |
| 239 | return FALSE; |
| 240 | if (a->mmWidth != b->mmWidth) |
| 241 | return FALSE; |
| 242 | if (a->mmHeight != b->mmHeight) |
| 243 | return FALSE; |
| 244 | return TRUE; |
| 245 | } |
| 246 | |
| 247 | RRScreenSizePtr |
| 248 | RRRegisterSize(ScreenPtr pScreen, |
| 249 | short width, short height, short mmWidth, short mmHeight) |
| 250 | { |
| 251 | rrScrPriv(pScreen); |
| 252 | int i; |
| 253 | RRScreenSize tmp; |
| 254 | RRScreenSizePtr pNew; |
| 255 | |
| 256 | if (!pScrPriv) |
| 257 | return 0; |
| 258 | |
| 259 | tmp.id = 0; |
| 260 | tmp.width = width; |
| 261 | tmp.height = height; |
| 262 | tmp.mmWidth = mmWidth; |
| 263 | tmp.mmHeight = mmHeight; |
| 264 | tmp.pRates = 0; |
| 265 | tmp.nRates = 0; |
| 266 | for (i = 0; i < pScrPriv->nSizes; i++) |
| 267 | if (RRScreenSizeMatches(&tmp, &pScrPriv->pSizes[i])) |
| 268 | return &pScrPriv->pSizes[i]; |
| 269 | pNew = realloc(pScrPriv->pSizes, |
| 270 | (pScrPriv->nSizes + 1) * sizeof(RRScreenSize)); |
| 271 | if (!pNew) |
| 272 | return 0; |
| 273 | pNew[pScrPriv->nSizes++] = tmp; |
| 274 | pScrPriv->pSizes = pNew; |
| 275 | return &pNew[pScrPriv->nSizes - 1]; |
| 276 | } |
| 277 | |
| 278 | Bool |
| 279 | RRRegisterRate(ScreenPtr pScreen, RRScreenSizePtr pSize, int rate) |
| 280 | { |
| 281 | rrScrPriv(pScreen); |
| 282 | int i; |
| 283 | RRScreenRatePtr pNew, pRate; |
| 284 | |
| 285 | if (!pScrPriv) |
| 286 | return FALSE; |
| 287 | |
| 288 | for (i = 0; i < pSize->nRates; i++) |
| 289 | if (pSize->pRates[i].rate == rate) |
| 290 | return TRUE; |
| 291 | |
| 292 | pNew = realloc(pSize->pRates, (pSize->nRates + 1) * sizeof(RRScreenRate)); |
| 293 | if (!pNew) |
| 294 | return FALSE; |
| 295 | pRate = &pNew[pSize->nRates++]; |
| 296 | pRate->rate = rate; |
| 297 | pSize->pRates = pNew; |
| 298 | return TRUE; |
| 299 | } |
| 300 | |
| 301 | Rotation |
| 302 | RRGetRotation(ScreenPtr pScreen) |
| 303 | { |
| 304 | RROutputPtr output = RRFirstOutput(pScreen); |
| 305 | |
| 306 | if (!output) |
| 307 | return RR_Rotate_0; |
| 308 | |
| 309 | return output->crtc->rotation; |
| 310 | } |
| 311 | |
| 312 | void |
| 313 | RRSetCurrentConfig(ScreenPtr pScreen, |
| 314 | Rotation rotation, int rate, RRScreenSizePtr pSize) |
| 315 | { |
| 316 | rrScrPriv(pScreen); |
| 317 | |
| 318 | if (!pScrPriv) |
| 319 | return; |
| 320 | pScrPriv->size = pSize - pScrPriv->pSizes; |
| 321 | pScrPriv->rotation = rotation; |
| 322 | pScrPriv->rate = rate; |
| 323 | } |
| 324 | #endif |