| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | #if defined(__APPLE__) && defined(__MACH__) |
| 25 | #include <Carbon/Carbon.h> |
| 26 | #elif TARGET_API_MAC_CARBON && (UNIVERSAL_INTERFACES_VERSION > 0x0335) |
| 27 | #include <Carbon.h> |
| 28 | #else |
| 29 | #include <Windows.h> |
| 30 | #include <Strings.h> |
| 31 | #endif |
| 32 | |
| 33 | #if SDL_MACCLASSIC_GAMMA_SUPPORT |
| 34 | #include <Devices.h> |
| 35 | #include <Files.h> |
| 36 | #include <MacTypes.h> |
| 37 | #include <QDOffscreen.h> |
| 38 | #include <Quickdraw.h> |
| 39 | #include <Video.h> |
| 40 | #endif |
| 41 | |
| 42 | #include "SDL_stdinc.h" |
| 43 | #include "SDL_macwm_c.h" |
| 44 | |
| 45 | void Mac_SetCaption(_THIS, const char *title, const char *icon) |
| 46 | { |
| 47 | /* Don't convert C to P string in place, because it may be read-only */ |
| 48 | Str255 ptitle; /* MJS */ |
| 49 | ptitle[0] = strlen (title); |
| 50 | SDL_memcpy(ptitle+1, title, ptitle[0]); /* MJS */ |
| 51 | if (SDL_Window) |
| 52 | SetWTitle(SDL_Window, ptitle); /* MJS */ |
| 53 | } |
| 54 | |
| 55 | #if SDL_MACCLASSIC_GAMMA_SUPPORT |
| 56 | /* |
| 57 | * ADC Gamma Ramp support... |
| 58 | * |
| 59 | * Mac Gamma Ramp code was originally from sample code provided by |
| 60 | * Apple Developer Connection, and not written specifically for SDL: |
| 61 | * "Contains: Functions to enable Mac OS device gamma adjustments using 3 channel 256 element 8 bit gamma ramps |
| 62 | * Written by: Geoff Stahl (ggs) |
| 63 | * Copyright: Copyright (c) 1999 Apple Computer, Inc., All Rights Reserved |
| 64 | * Disclaimer: You may incorporate this sample code into your applications without |
| 65 | * restriction, though the sample code has been provided "AS IS" and the |
| 66 | * responsibility for its operation is 100% yours. However, what you are |
| 67 | * not permitted to do is to redistribute the source as "DSC Sample Code" |
| 68 | * after having made changes. If you're going to re-distribute the source, |
| 69 | * we require that you make it clear in the source that the code was |
| 70 | * descended from Apple Sample Code, but that you've made changes." |
| 71 | * (The sample code has been integrated into this file, and thus is modified from the original Apple sources.) |
| 72 | */ |
| 73 | |
| 74 | typedef struct recDeviceGamma /* storage for device handle and gamma table */ |
| 75 | { |
| 76 | GDHandle hGD; /* handle to device */ |
| 77 | GammaTblPtr pDeviceGamma; /* pointer to device gamma table */ |
| 78 | } recDeviceGamma; |
| 79 | typedef recDeviceGamma * precDeviceGamma; |
| 80 | |
| 81 | typedef struct recSystemGamma /* storage for system devices and gamma tables */ |
| 82 | { |
| 83 | short numDevices; /* number of devices */ |
| 84 | precDeviceGamma * devGamma; /* array of pointers to device gamma records */ |
| 85 | } recSystemGamma; |
| 86 | typedef recSystemGamma * precSystemGamma; |
| 87 | |
| 88 | static Ptr CopyGammaTable (GammaTblPtr pTableGammaIn) |
| 89 | { |
| 90 | GammaTblPtr pTableGammaOut = NULL; |
| 91 | short tableSize, dataWidth; |
| 92 | |
| 93 | if (pTableGammaIn) /* if there is a table to copy */ |
| 94 | { |
| 95 | dataWidth = (pTableGammaIn->gDataWidth + 7) / 8; /* number of bytes per entry */ |
| 96 | tableSize = sizeof (GammaTbl) + pTableGammaIn->gFormulaSize + |
| 97 | (pTableGammaIn->gChanCnt * pTableGammaIn->gDataCnt * dataWidth); |
| 98 | pTableGammaOut = (GammaTblPtr) NewPtr (tableSize); /* allocate new table */ |
| 99 | if (pTableGammaOut) |
| 100 | BlockMove( (Ptr)pTableGammaIn, (Ptr)pTableGammaOut, tableSize); /* move everything */ |
| 101 | } |
| 102 | return (Ptr)pTableGammaOut; /* return whatever we allocated, could be NULL */ |
| 103 | } |
| 104 | |
| 105 | static OSErr GetGammaTable (GDHandle hGD, GammaTblPtr * ppTableGammaOut) |
| 106 | { |
| 107 | VDGammaRecord DeviceGammaRec; |
| 108 | CntrlParam cParam; |
| 109 | OSErr err; |
| 110 | |
| 111 | cParam.ioCompletion = NULL; /* set up control params */ |
| 112 | cParam.ioNamePtr = NULL; |
| 113 | cParam.ioVRefNum = 0; |
| 114 | cParam.ioCRefNum = (**hGD).gdRefNum; |
| 115 | cParam.csCode = cscGetGamma; /* Get Gamma commnd to device */ |
| 116 | *(Ptr *)cParam.csParam = (Ptr) &DeviceGammaRec; /* record for gamma */ |
| 117 | |
| 118 | err = PBStatusSync( (ParmBlkPtr)&cParam ); /* get gamma */ |
| 119 | |
| 120 | *ppTableGammaOut = (GammaTblPtr)(DeviceGammaRec.csGTable); /* pull table out of record */ |
| 121 | |
| 122 | return err; |
| 123 | } |
| 124 | |
| 125 | static Ptr GetDeviceGamma (GDHandle hGD) |
| 126 | { |
| 127 | GammaTblPtr pTableGammaDevice = NULL; |
| 128 | GammaTblPtr pTableGammaReturn = NULL; |
| 129 | OSErr err; |
| 130 | |
| 131 | err = GetGammaTable (hGD, &pTableGammaDevice); /* get a pointer to the devices table */ |
| 132 | if ((noErr == err) && pTableGammaDevice) /* if succesful */ |
| 133 | pTableGammaReturn = (GammaTblPtr) CopyGammaTable (pTableGammaDevice); /* copy to global */ |
| 134 | |
| 135 | return (Ptr) pTableGammaReturn; |
| 136 | } |
| 137 | |
| 138 | static void DisposeGammaTable (Ptr pGamma) |
| 139 | { |
| 140 | if (pGamma) |
| 141 | DisposePtr((Ptr) pGamma); /* get rid of it */ |
| 142 | } |
| 143 | |
| 144 | static void DisposeSystemGammas (Ptr* ppSystemGammas) |
| 145 | { |
| 146 | precSystemGamma pSysGammaIn; |
| 147 | if (ppSystemGammas) |
| 148 | { |
| 149 | pSysGammaIn = (precSystemGamma) *ppSystemGammas; |
| 150 | if (pSysGammaIn) |
| 151 | { |
| 152 | short i; |
| 153 | for (i = 0; i < pSysGammaIn->numDevices; i++) /* for all devices */ |
| 154 | if (pSysGammaIn->devGamma [i]) /* if pointer is valid */ |
| 155 | { |
| 156 | DisposeGammaTable ((Ptr) pSysGammaIn->devGamma [i]->pDeviceGamma); /* dump gamma table */ |
| 157 | DisposePtr ((Ptr) pSysGammaIn->devGamma [i]); /* dump device info */ |
| 158 | } |
| 159 | DisposePtr ((Ptr) pSysGammaIn->devGamma); /* dump device pointer array */ |
| 160 | DisposePtr ((Ptr) pSysGammaIn); /* dump system structure */ |
| 161 | *ppSystemGammas = NULL; |
| 162 | } |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | static Boolean GetDeviceGammaRampGD (GDHandle hGD, Ptr pRamp) |
| 167 | { |
| 168 | GammaTblPtr pTableGammaTemp = NULL; |
| 169 | long indexChan, indexEntry; |
| 170 | OSErr err; |
| 171 | |
| 172 | if (pRamp) /* ensure pRamp is allocated */ |
| 173 | { |
| 174 | err = GetGammaTable (hGD, &pTableGammaTemp); /* get a pointer to the current gamma */ |
| 175 | if ((noErr == err) && pTableGammaTemp) /* if successful */ |
| 176 | { |
| 177 | /* fill ramp */ |
| 178 | unsigned char * pEntry = (unsigned char *) &pTableGammaTemp->gFormulaData + pTableGammaTemp->gFormulaSize; /* base of table */ |
| 179 | short bytesPerEntry = (pTableGammaTemp->gDataWidth + 7) / 8; /* size, in bytes, of the device table entries */ |
| 180 | short shiftRightValue = pTableGammaTemp->gDataWidth - 8; /* number of right shifts device -> ramp */ |
| 181 | short channels = pTableGammaTemp->gChanCnt; |
| 182 | short entries = pTableGammaTemp->gDataCnt; |
| 183 | if (3 == channels) /* RGB format */ |
| 184 | { /* note, this will create runs of entries if dest. is bigger (not linear interpolate) */ |
| 185 | for (indexChan = 0; indexChan < channels; indexChan++) |
| 186 | for (indexEntry = 0; indexEntry < 256; indexEntry++) |
| 187 | *((unsigned char *) pRamp + (indexChan * 256) + indexEntry) = |
| 188 | *(pEntry + indexChan * entries * bytesPerEntry + indexEntry * entries * bytesPerEntry / 256) >> shiftRightValue; |
| 189 | } |
| 190 | else /* single channel format */ |
| 191 | { |
| 192 | for (indexChan = 0; indexChan < 768; indexChan += 256) /* repeat for all 3 channels (step by ramp size) */ |
| 193 | for (indexEntry = 0; indexEntry < 256; indexEntry++) /* for all entries set vramp value */ |
| 194 | *((unsigned char *) pRamp + indexChan + indexEntry) = |
| 195 | *(pEntry + indexEntry * entries * bytesPerEntry / 256) >> shiftRightValue; |
| 196 | } |
| 197 | return true; |
| 198 | } |
| 199 | } |
| 200 | return false; |
| 201 | } |
| 202 | |
| 203 | static Ptr GetSystemGammas (void) |
| 204 | { |
| 205 | precSystemGamma pSysGammaOut; /* return pointer to system device gamma info */ |
| 206 | short devCount = 0; /* number of devices attached */ |
| 207 | Boolean fail = false; |
| 208 | GDHandle hGDevice; |
| 209 | |
| 210 | pSysGammaOut = (precSystemGamma) NewPtr (sizeof (recSystemGamma)); /* allocate for structure */ |
| 211 | |
| 212 | hGDevice = GetDeviceList (); /* top of device list */ |
| 213 | do /* iterate */ |
| 214 | { |
| 215 | devCount++; /* count devices */ |
| 216 | hGDevice = GetNextDevice (hGDevice); /* next device */ |
| 217 | } while (hGDevice); |
| 218 | |
| 219 | pSysGammaOut->devGamma = (precDeviceGamma *) NewPtr (sizeof (precDeviceGamma) * devCount); /* allocate for array of pointers to device records */ |
| 220 | if (pSysGammaOut) |
| 221 | { |
| 222 | pSysGammaOut->numDevices = devCount; /* stuff count */ |
| 223 | |
| 224 | devCount = 0; /* reset iteration */ |
| 225 | hGDevice = GetDeviceList (); |
| 226 | do |
| 227 | { |
| 228 | pSysGammaOut->devGamma [devCount] = (precDeviceGamma) NewPtr (sizeof (recDeviceGamma)); /* new device record */ |
| 229 | if (pSysGammaOut->devGamma [devCount]) /* if we actually allocated memory */ |
| 230 | { |
| 231 | pSysGammaOut->devGamma [devCount]->hGD = hGDevice; /* stuff handle */ |
| 232 | pSysGammaOut->devGamma [devCount]->pDeviceGamma = (GammaTblPtr)GetDeviceGamma (hGDevice); /* copy gamma table */ |
| 233 | } |
| 234 | else /* otherwise dump record on exit */ |
| 235 | fail = true; |
| 236 | devCount++; /* next device */ |
| 237 | hGDevice = GetNextDevice (hGDevice); |
| 238 | } while (hGDevice); |
| 239 | } |
| 240 | if (!fail) /* if we did not fail */ |
| 241 | return (Ptr) pSysGammaOut; /* return pointer to structure */ |
| 242 | else |
| 243 | { |
| 244 | DisposeSystemGammas ((Ptr *) &pSysGammaOut); /* otherwise dump the current structures (dispose does error checking) */ |
| 245 | return NULL; /* could not complete */ |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | static void RestoreDeviceGamma (GDHandle hGD, Ptr pGammaTable) |
| 250 | { |
| 251 | VDSetEntryRecord setEntriesRec; |
| 252 | VDGammaRecord gameRecRestore; |
| 253 | CTabHandle hCTabDeviceColors; |
| 254 | Ptr csPtr; |
| 255 | OSErr err = noErr; |
| 256 | |
| 257 | if (pGammaTable) /* if we have a table to restore */ |
| 258 | { |
| 259 | gameRecRestore.csGTable = pGammaTable; /* setup restore record */ |
| 260 | csPtr = (Ptr) &gameRecRestore; |
| 261 | err = Control((**hGD).gdRefNum, cscSetGamma, (Ptr) &csPtr); /* restore gamma */ |
| 262 | |
| 263 | if ((noErr == err) && (8 == (**(**hGD).gdPMap).pixelSize)) /* if successful and on an 8 bit device */ |
| 264 | { |
| 265 | hCTabDeviceColors = (**(**hGD).gdPMap).pmTable; /* do SetEntries to force CLUT update */ |
| 266 | setEntriesRec.csTable = (ColorSpec *) &(**hCTabDeviceColors).ctTable; |
| 267 | setEntriesRec.csStart = 0; |
| 268 | setEntriesRec.csCount = (**hCTabDeviceColors).ctSize; |
| 269 | csPtr = (Ptr) &setEntriesRec; |
| 270 | |
| 271 | err = Control((**hGD).gdRefNum, cscSetEntries, (Ptr) &csPtr); /* SetEntries in CLUT */ |
| 272 | } |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | static void RestoreSystemGammas (Ptr pSystemGammas) |
| 277 | { |
| 278 | short i; |
| 279 | precSystemGamma pSysGammaIn = (precSystemGamma) pSystemGammas; |
| 280 | if (pSysGammaIn) |
| 281 | for (i = 0; i < pSysGammaIn->numDevices; i++) /* for all devices */ |
| 282 | RestoreDeviceGamma (pSysGammaIn->devGamma [i]->hGD, (Ptr) pSysGammaIn->devGamma [i]->pDeviceGamma); /* restore gamma */ |
| 283 | } |
| 284 | |
| 285 | static Ptr CreateEmptyGammaTable (short channels, short entries, short bits) |
| 286 | { |
| 287 | GammaTblPtr pTableGammaOut = NULL; |
| 288 | short tableSize, dataWidth; |
| 289 | |
| 290 | dataWidth = (bits + 7) / 8; /* number of bytes per entry */ |
| 291 | tableSize = sizeof (GammaTbl) + (channels * entries * dataWidth); |
| 292 | pTableGammaOut = (GammaTblPtr) NewPtrClear (tableSize); /* allocate new tabel */ |
| 293 | |
| 294 | if (pTableGammaOut) /* if we successfully allocated */ |
| 295 | { |
| 296 | pTableGammaOut->gVersion = 0; /* set parameters based on input */ |
| 297 | pTableGammaOut->gType = 0; |
| 298 | pTableGammaOut->gFormulaSize = 0; |
| 299 | pTableGammaOut->gChanCnt = channels; |
| 300 | pTableGammaOut->gDataCnt = entries; |
| 301 | pTableGammaOut->gDataWidth = bits; |
| 302 | } |
| 303 | return (Ptr)pTableGammaOut; /* return whatever we allocated */ |
| 304 | } |
| 305 | |
| 306 | static Boolean SetDeviceGammaRampGD (GDHandle hGD, Ptr pRamp) |
| 307 | { |
| 308 | VDSetEntryRecord setEntriesRec; |
| 309 | VDGammaRecord gameRecRestore; |
| 310 | GammaTblPtr pTableGammaNew; |
| 311 | GammaTblPtr pTableGammaCurrent = NULL; |
| 312 | CTabHandle hCTabDeviceColors; |
| 313 | Ptr csPtr; |
| 314 | OSErr err; |
| 315 | short dataBits, entries, channels = 3; /* force three channels in the gamma table */ |
| 316 | |
| 317 | if (pRamp) /* ensure pRamp is allocated */ |
| 318 | { |
| 319 | err= GetGammaTable (hGD, &pTableGammaCurrent); /* get pointer to current table */ |
| 320 | if ((noErr == err) && pTableGammaCurrent) |
| 321 | { |
| 322 | dataBits = pTableGammaCurrent->gDataWidth; /* table must have same data width */ |
| 323 | entries = pTableGammaCurrent->gDataCnt; /* table must be same size */ |
| 324 | pTableGammaNew = (GammaTblPtr) CreateEmptyGammaTable (channels, entries, dataBits); /* our new table */ |
| 325 | if (pTableGammaNew) /* if successful fill table */ |
| 326 | { |
| 327 | unsigned char * pGammaBase = (unsigned char *) &pTableGammaNew->gFormulaData + pTableGammaNew->gFormulaSize; /* base of table */ |
| 328 | if ((256 == entries) && (8 == dataBits)) /* simple case: direct mapping */ |
| 329 | BlockMove ((Ptr)pRamp, (Ptr)pGammaBase, channels * entries); /* move everything */ |
| 330 | else /* tough case handle entry, channel and data size disparities */ |
| 331 | { |
| 332 | short indexChan, indexEntry; |
| 333 | short bytesPerEntry = (dataBits + 7) / 8; /* size, in bytes, of the device table entries */ |
| 334 | short shiftRightValue = 8 - dataBits; /* number of right shifts ramp -> device */ |
| 335 | shiftRightValue += ((bytesPerEntry - 1) * 8); /* multibyte entries and the need to map a byte at a time most sig. to least sig. */ |
| 336 | for (indexChan = 0; indexChan < channels; indexChan++) /* for all the channels */ |
| 337 | for (indexEntry = 0; indexEntry < entries; indexEntry++) /* for all the entries */ |
| 338 | { |
| 339 | short currentShift = shiftRightValue; /* reset current bit shift */ |
| 340 | long temp = *((unsigned char *)pRamp + (indexChan << 8) + (indexEntry << 8) / entries); /* get data from ramp */ |
| 341 | short indexByte; |
| 342 | for (indexByte = 0; indexByte < bytesPerEntry; indexByte++) /* for all bytes */ |
| 343 | { |
| 344 | if (currentShift < 0) /* shift data correctly for current byte */ |
| 345 | *(pGammaBase++) = temp << -currentShift; |
| 346 | else |
| 347 | *(pGammaBase++) = temp >> currentShift; |
| 348 | currentShift -= 8; /* increment shift to align to next less sig. byte */ |
| 349 | } |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | /* set gamma */ |
| 354 | gameRecRestore.csGTable = (Ptr) pTableGammaNew; /* setup restore record */ |
| 355 | csPtr = (Ptr) &gameRecRestore; |
| 356 | err = Control((**hGD).gdRefNum, cscSetGamma, (Ptr) &csPtr); /* restore gamma (note, display drivers may delay returning from this until VBL) */ |
| 357 | |
| 358 | if ((8 == (**(**hGD).gdPMap).pixelSize) && (noErr == err)) /* if successful and on an 8 bit device */ |
| 359 | { |
| 360 | hCTabDeviceColors = (**(**hGD).gdPMap).pmTable; /* do SetEntries to force CLUT update */ |
| 361 | setEntriesRec.csTable = (ColorSpec *) &(**hCTabDeviceColors).ctTable; |
| 362 | setEntriesRec.csStart = 0; |
| 363 | setEntriesRec.csCount = (**hCTabDeviceColors).ctSize; |
| 364 | csPtr = (Ptr) &setEntriesRec; |
| 365 | err = Control((**hGD).gdRefNum, cscSetEntries, (Ptr) &csPtr); /* SetEntries in CLUT */ |
| 366 | } |
| 367 | DisposeGammaTable ((Ptr) pTableGammaNew); /* dump table */ |
| 368 | if (noErr == err) |
| 369 | return true; |
| 370 | } |
| 371 | } |
| 372 | } |
| 373 | else /* set NULL gamma -> results in linear map */ |
| 374 | { |
| 375 | gameRecRestore.csGTable = (Ptr) NULL; /* setup restore record */ |
| 376 | csPtr = (Ptr) &gameRecRestore; |
| 377 | err = Control((**hGD).gdRefNum, cscSetGamma, (Ptr) &csPtr); /* restore gamma */ |
| 378 | |
| 379 | if ((8 == (**(**hGD).gdPMap).pixelSize) && (noErr == err)) /* if successful and on an 8 bit device */ |
| 380 | { |
| 381 | hCTabDeviceColors = (**(**hGD).gdPMap).pmTable; /* do SetEntries to force CLUT update */ |
| 382 | setEntriesRec.csTable = (ColorSpec *) &(**hCTabDeviceColors).ctTable; |
| 383 | setEntriesRec.csStart = 0; |
| 384 | setEntriesRec.csCount = (**hCTabDeviceColors).ctSize; |
| 385 | csPtr = (Ptr) &setEntriesRec; |
| 386 | err = Control((**hGD).gdRefNum, cscSetEntries, (Ptr) &csPtr); /* SetEntries in CLUT */ |
| 387 | } |
| 388 | if (noErr == err) |
| 389 | return true; |
| 390 | } |
| 391 | return false; /* memory allocation or device control failed if we get here */ |
| 392 | } |
| 393 | |
| 394 | /* end of ADC Gamma Ramp support code... */ |
| 395 | |
| 396 | static Ptr systemGammaPtr; |
| 397 | |
| 398 | void Mac_QuitGamma(_THIS) |
| 399 | { |
| 400 | if (systemGammaPtr) |
| 401 | { |
| 402 | RestoreSystemGammas(systemGammaPtr); |
| 403 | DisposeSystemGammas(&systemGammaPtr); |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | static unsigned char shiftedRamp[3 * 256]; |
| 408 | |
| 409 | int Mac_SetGammaRamp(_THIS, Uint16 *ramp) |
| 410 | { |
| 411 | int i; |
| 412 | if (!systemGammaPtr) |
| 413 | systemGammaPtr = GetSystemGammas(); |
| 414 | for (i = 0; i < 3 * 256; i++) |
| 415 | { |
| 416 | shiftedRamp[i] = ramp[i] >> 8; |
| 417 | } |
| 418 | |
| 419 | if (SetDeviceGammaRampGD(GetMainDevice(), (Ptr) shiftedRamp)) |
| 420 | return 0; |
| 421 | else |
| 422 | return -1; |
| 423 | } |
| 424 | |
| 425 | int Mac_GetGammaRamp(_THIS, Uint16 *ramp) |
| 426 | { |
| 427 | if (GetDeviceGammaRampGD(GetMainDevice(), (Ptr) shiftedRamp)) |
| 428 | { |
| 429 | int i; |
| 430 | for (i = 0; i < 3 * 256; i++) |
| 431 | { |
| 432 | ramp[i] = shiftedRamp[i] << 8; |
| 433 | } |
| 434 | return 0; |
| 435 | } |
| 436 | else |
| 437 | return -1; |
| 438 | } |
| 439 | |
| 440 | #endif /* SDL_MACCLASSIC_GAMMA_SUPPORT */ |
| 441 | |
| 442 | |