| 1 | /* |
| 2 | * GLX implementation that uses Apple's OpenGL.framework |
| 3 | * (Indirect rendering path -- it's also used for some direct mode code too) |
| 4 | * |
| 5 | * Copyright (c) 2007-2012 Apple Inc. |
| 6 | * Copyright (c) 2004 Torrey T. Lyons. All Rights Reserved. |
| 7 | * Copyright (c) 2002 Greg Parker. All Rights Reserved. |
| 8 | * |
| 9 | * Portions of this file are copied from Mesa's xf86glx.c, |
| 10 | * which contains the following copyright: |
| 11 | * |
| 12 | * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. |
| 13 | * All Rights Reserved. |
| 14 | * |
| 15 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 16 | * copy of this software and associated documentation files (the "Software"), |
| 17 | * to deal in the Software without restriction, including without limitation |
| 18 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 19 | * and/or sell copies of the Software, and to permit persons to whom the |
| 20 | * Software is furnished to do so, subject to the following conditions: |
| 21 | * |
| 22 | * The above copyright notice and this permission notice shall be included in |
| 23 | * all copies or substantial portions of the Software. |
| 24 | * |
| 25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 26 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 27 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 28 | * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 29 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 30 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 31 | * DEALINGS IN THE SOFTWARE. |
| 32 | */ |
| 33 | |
| 34 | #ifdef HAVE_DIX_CONFIG_H |
| 35 | #include <dix-config.h> |
| 36 | #endif |
| 37 | |
| 38 | #include <AvailabilityMacros.h> |
| 39 | |
| 40 | #include <dlfcn.h> |
| 41 | |
| 42 | #include <OpenGL/OpenGL.h> |
| 43 | #include <OpenGL/gl.h> /* Just to prevent glxserver.h from loading mesa's and colliding with OpenGL.h */ |
| 44 | |
| 45 | #include <X11/Xproto.h> |
| 46 | #include <GL/glxproto.h> |
| 47 | |
| 48 | #include <glxserver.h> |
| 49 | #include <glxutil.h> |
| 50 | |
| 51 | #include "x-hash.h" |
| 52 | |
| 53 | #include "visualConfigs.h" |
| 54 | #include "dri.h" |
| 55 | |
| 56 | #include "darwin.h" |
| 57 | #define GLAQUA_DEBUG_MSG(msg, args ...) ASL_LOG(ASL_LEVEL_DEBUG, "GLXAqua", \ |
| 58 | msg, \ |
| 59 | ## args) |
| 60 | |
| 61 | __GLXprovider * |
| 62 | GlxGetDRISWrastProvider(void); |
| 63 | |
| 64 | static void |
| 65 | setup_dispatch_table(void); |
| 66 | GLuint |
| 67 | __glFloorLog2(GLuint val); |
| 68 | void |
| 69 | warn_func(void * p1, char *format, ...); |
| 70 | |
| 71 | // some prototypes |
| 72 | static __GLXscreen * |
| 73 | __glXAquaScreenProbe(ScreenPtr pScreen); |
| 74 | static __GLXdrawable * |
| 75 | __glXAquaScreenCreateDrawable(ClientPtr client, __GLXscreen *screen, |
| 76 | DrawablePtr pDraw, XID drawId, int type, |
| 77 | XID glxDrawId, |
| 78 | __GLXconfig *conf); |
| 79 | |
| 80 | static void |
| 81 | __glXAquaContextDestroy(__GLXcontext *baseContext); |
| 82 | static int |
| 83 | __glXAquaContextMakeCurrent(__GLXcontext *baseContext); |
| 84 | static int |
| 85 | __glXAquaContextLoseCurrent(__GLXcontext *baseContext); |
| 86 | static int |
| 87 | __glXAquaContextCopy(__GLXcontext *baseDst, __GLXcontext *baseSrc, |
| 88 | unsigned long mask); |
| 89 | |
| 90 | static CGLPixelFormatObj |
| 91 | makeFormat(__GLXconfig *conf); |
| 92 | |
| 93 | __GLXprovider __glXDRISWRastProvider = { |
| 94 | __glXAquaScreenProbe, |
| 95 | "Core OpenGL", |
| 96 | NULL |
| 97 | }; |
| 98 | |
| 99 | typedef struct __GLXAquaScreen __GLXAquaScreen; |
| 100 | typedef struct __GLXAquaContext __GLXAquaContext; |
| 101 | typedef struct __GLXAquaDrawable __GLXAquaDrawable; |
| 102 | |
| 103 | /* |
| 104 | * The following structs must keep the base as the first member. |
| 105 | * It's used to treat the start of the struct as a different struct |
| 106 | * in GLX. |
| 107 | * |
| 108 | * Note: these structs should be initialized with xcalloc or memset |
| 109 | * prior to usage, and some of them require initializing |
| 110 | * the base with function pointers. |
| 111 | */ |
| 112 | struct __GLXAquaScreen { |
| 113 | __GLXscreen base; |
| 114 | int index; |
| 115 | int num_vis; |
| 116 | }; |
| 117 | |
| 118 | struct __GLXAquaContext { |
| 119 | __GLXcontext base; |
| 120 | CGLContextObj ctx; |
| 121 | CGLPixelFormatObj pixelFormat; |
| 122 | xp_surface_id sid; |
| 123 | unsigned isAttached : 1; |
| 124 | }; |
| 125 | |
| 126 | struct __GLXAquaDrawable { |
| 127 | __GLXdrawable base; |
| 128 | DrawablePtr pDraw; |
| 129 | xp_surface_id sid; |
| 130 | __GLXAquaContext *context; |
| 131 | }; |
| 132 | |
| 133 | static __GLXcontext * |
| 134 | __glXAquaScreenCreateContext(__GLXscreen *screen, |
| 135 | __GLXconfig *conf, |
| 136 | __GLXcontext *baseShareContext, |
| 137 | unsigned num_attribs, |
| 138 | const uint32_t *attribs, |
| 139 | int *error) |
| 140 | { |
| 141 | __GLXAquaContext *context; |
| 142 | __GLXAquaContext *shareContext = (__GLXAquaContext *)baseShareContext; |
| 143 | CGLError gl_err; |
| 144 | |
| 145 | /* Unused (for now?) */ |
| 146 | (void)num_attribs; |
| 147 | (void)attribs; |
| 148 | (void)error; |
| 149 | |
| 150 | GLAQUA_DEBUG_MSG("glXAquaScreenCreateContext\n"); |
| 151 | |
| 152 | context = calloc(1, sizeof(__GLXAquaContext)); |
| 153 | |
| 154 | if (context == NULL) |
| 155 | return NULL; |
| 156 | |
| 157 | memset(context, 0, sizeof *context); |
| 158 | |
| 159 | context->base.pGlxScreen = screen; |
| 160 | |
| 161 | context->base.destroy = __glXAquaContextDestroy; |
| 162 | context->base.makeCurrent = __glXAquaContextMakeCurrent; |
| 163 | context->base.loseCurrent = __glXAquaContextLoseCurrent; |
| 164 | context->base.copy = __glXAquaContextCopy; |
| 165 | /*FIXME verify that the context->base is fully initialized. */ |
| 166 | |
| 167 | context->pixelFormat = makeFormat(conf); |
| 168 | |
| 169 | if (!context->pixelFormat) { |
| 170 | free(context); |
| 171 | return NULL; |
| 172 | } |
| 173 | |
| 174 | context->ctx = NULL; |
| 175 | gl_err = CGLCreateContext(context->pixelFormat, |
| 176 | shareContext ? shareContext->ctx : NULL, |
| 177 | &context->ctx); |
| 178 | |
| 179 | if (gl_err != 0) { |
| 180 | ErrorF("CGLCreateContext error: %s\n", CGLErrorString(gl_err)); |
| 181 | CGLDestroyPixelFormat(context->pixelFormat); |
| 182 | free(context); |
| 183 | return NULL; |
| 184 | } |
| 185 | |
| 186 | setup_dispatch_table(); |
| 187 | GLAQUA_DEBUG_MSG("glAquaCreateContext done\n"); |
| 188 | |
| 189 | return &context->base; |
| 190 | } |
| 191 | |
| 192 | /* maps from surface id -> list of __GLcontext */ |
| 193 | static x_hash_table *surface_hash; |
| 194 | |
| 195 | static void |
| 196 | __glXAquaContextDestroy(__GLXcontext *baseContext) |
| 197 | { |
| 198 | x_list *lst; |
| 199 | |
| 200 | __GLXAquaContext *context = (__GLXAquaContext *)baseContext; |
| 201 | |
| 202 | GLAQUA_DEBUG_MSG("glAquaContextDestroy (ctx %p)\n", baseContext); |
| 203 | if (context != NULL) { |
| 204 | if (context->sid != 0 && surface_hash != NULL) { |
| 205 | lst = |
| 206 | x_hash_table_lookup(surface_hash, x_cvt_uint_to_vptr( |
| 207 | context->sid), NULL); |
| 208 | lst = x_list_remove(lst, context); |
| 209 | x_hash_table_insert(surface_hash, x_cvt_uint_to_vptr( |
| 210 | context->sid), lst); |
| 211 | } |
| 212 | |
| 213 | if (context->ctx != NULL) |
| 214 | CGLDestroyContext(context->ctx); |
| 215 | |
| 216 | if (context->pixelFormat != NULL) |
| 217 | CGLDestroyPixelFormat(context->pixelFormat); |
| 218 | |
| 219 | free(context); |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | static int |
| 224 | __glXAquaContextLoseCurrent(__GLXcontext *baseContext) |
| 225 | { |
| 226 | CGLError gl_err; |
| 227 | |
| 228 | GLAQUA_DEBUG_MSG("glAquaLoseCurrent (ctx 0x%p)\n", baseContext); |
| 229 | |
| 230 | gl_err = CGLSetCurrentContext(NULL); |
| 231 | if (gl_err != 0) |
| 232 | ErrorF("CGLSetCurrentContext error: %s\n", CGLErrorString(gl_err)); |
| 233 | |
| 234 | /* |
| 235 | * There should be no need to set __glXLastContext to NULL here, because |
| 236 | * glxcmds.c does it as part of the context cache flush after calling |
| 237 | * this. |
| 238 | */ |
| 239 | |
| 240 | return GL_TRUE; |
| 241 | } |
| 242 | |
| 243 | /* Called when a surface is destroyed as a side effect of destroying |
| 244 | the window it's attached to. */ |
| 245 | static void |
| 246 | surface_notify(void *_arg, void *data) |
| 247 | { |
| 248 | DRISurfaceNotifyArg *arg = (DRISurfaceNotifyArg *)_arg; |
| 249 | __GLXAquaDrawable *draw = (__GLXAquaDrawable *)data; |
| 250 | __GLXAquaContext *context; |
| 251 | x_list *lst; |
| 252 | if (_arg == NULL || data == NULL) { |
| 253 | ErrorF("surface_notify called with bad params"); |
| 254 | return; |
| 255 | } |
| 256 | |
| 257 | GLAQUA_DEBUG_MSG("surface_notify(%p, %p)\n", _arg, data); |
| 258 | switch (arg->kind) { |
| 259 | case AppleDRISurfaceNotifyDestroyed: |
| 260 | if (surface_hash != NULL) |
| 261 | x_hash_table_remove(surface_hash, x_cvt_uint_to_vptr(arg->id)); |
| 262 | draw->pDraw = NULL; |
| 263 | draw->sid = 0; |
| 264 | break; |
| 265 | |
| 266 | case AppleDRISurfaceNotifyChanged: |
| 267 | if (surface_hash != NULL) { |
| 268 | lst = |
| 269 | x_hash_table_lookup(surface_hash, x_cvt_uint_to_vptr( |
| 270 | arg->id), NULL); |
| 271 | for (; lst != NULL; lst = lst->next) { |
| 272 | context = lst->data; |
| 273 | xp_update_gl_context(context->ctx); |
| 274 | } |
| 275 | } |
| 276 | break; |
| 277 | |
| 278 | default: |
| 279 | ErrorF("surface_notify: unknown kind %d\n", arg->kind); |
| 280 | break; |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | static BOOL |
| 285 | attach(__GLXAquaContext *context, __GLXAquaDrawable *draw) |
| 286 | { |
| 287 | DrawablePtr pDraw; |
| 288 | |
| 289 | GLAQUA_DEBUG_MSG("attach(%p, %p)\n", context, draw); |
| 290 | |
| 291 | if (NULL == context || NULL == draw) |
| 292 | return TRUE; |
| 293 | |
| 294 | pDraw = draw->base.pDraw; |
| 295 | |
| 296 | if (NULL == pDraw) { |
| 297 | ErrorF("%s:%s() pDraw is NULL!\n", __FILE__, __func__); |
| 298 | return TRUE; |
| 299 | } |
| 300 | |
| 301 | if (draw->sid == 0) { |
| 302 | //if (!quartzProcs->CreateSurface(pDraw->pScreen, pDraw->id, pDraw, |
| 303 | if (!DRICreateSurface(pDraw->pScreen, pDraw->id, pDraw, |
| 304 | 0, &draw->sid, NULL, |
| 305 | surface_notify, draw)) |
| 306 | return TRUE; |
| 307 | draw->pDraw = pDraw; |
| 308 | } |
| 309 | |
| 310 | if (!context->isAttached || context->sid != draw->sid) { |
| 311 | x_list *lst; |
| 312 | |
| 313 | if (xp_attach_gl_context(context->ctx, draw->sid) != Success) { |
| 314 | //quartzProcs->DestroySurface(pDraw->pScreen, pDraw->id, pDraw, |
| 315 | DRIDestroySurface(pDraw->pScreen, pDraw->id, pDraw, |
| 316 | surface_notify, draw); |
| 317 | if (surface_hash != NULL) |
| 318 | x_hash_table_remove(surface_hash, |
| 319 | x_cvt_uint_to_vptr(draw->sid)); |
| 320 | |
| 321 | draw->sid = 0; |
| 322 | return TRUE; |
| 323 | } |
| 324 | |
| 325 | context->isAttached = TRUE; |
| 326 | context->sid = draw->sid; |
| 327 | |
| 328 | if (surface_hash == NULL) |
| 329 | surface_hash = x_hash_table_new(NULL, NULL, NULL, NULL); |
| 330 | |
| 331 | lst = |
| 332 | x_hash_table_lookup(surface_hash, x_cvt_uint_to_vptr( |
| 333 | context->sid), NULL); |
| 334 | if (x_list_find(lst, context) == NULL) { |
| 335 | lst = x_list_prepend(lst, context); |
| 336 | x_hash_table_insert(surface_hash, x_cvt_uint_to_vptr( |
| 337 | context->sid), lst); |
| 338 | } |
| 339 | |
| 340 | GLAQUA_DEBUG_MSG("attached 0x%x to 0x%x\n", (unsigned int)pDraw->id, |
| 341 | (unsigned int)draw->sid); |
| 342 | } |
| 343 | |
| 344 | draw->context = context; |
| 345 | |
| 346 | return FALSE; |
| 347 | } |
| 348 | |
| 349 | #if 0 // unused |
| 350 | static void |
| 351 | unattach(__GLXAquaContext *context) |
| 352 | { |
| 353 | x_list *lst; |
| 354 | GLAQUA_DEBUG_MSG("unattach\n"); |
| 355 | if (context == NULL) { |
| 356 | ErrorF("Tried to unattach a null context\n"); |
| 357 | return; |
| 358 | } |
| 359 | if (context->isAttached) { |
| 360 | GLAQUA_DEBUG_MSG("unattaching\n"); |
| 361 | |
| 362 | if (surface_hash != NULL) { |
| 363 | lst = x_hash_table_lookup(surface_hash, (void *)context->sid, |
| 364 | NULL); |
| 365 | lst = x_list_remove(lst, context); |
| 366 | x_hash_table_insert(surface_hash, (void *)context->sid, lst); |
| 367 | } |
| 368 | |
| 369 | CGLClearDrawable(context->ctx); |
| 370 | context->isAttached = FALSE; |
| 371 | context->sid = 0; |
| 372 | } |
| 373 | } |
| 374 | #endif |
| 375 | |
| 376 | static int |
| 377 | __glXAquaContextMakeCurrent(__GLXcontext *baseContext) |
| 378 | { |
| 379 | CGLError gl_err; |
| 380 | __GLXAquaContext *context = (__GLXAquaContext *)baseContext; |
| 381 | __GLXAquaDrawable *drawPriv = (__GLXAquaDrawable *)context->base.drawPriv; |
| 382 | |
| 383 | GLAQUA_DEBUG_MSG("glAquaMakeCurrent (ctx 0x%p)\n", baseContext); |
| 384 | |
| 385 | if (attach(context, drawPriv)) |
| 386 | return /*error*/ 0; |
| 387 | |
| 388 | gl_err = CGLSetCurrentContext(context->ctx); |
| 389 | if (gl_err != 0) |
| 390 | ErrorF("CGLSetCurrentContext error: %s\n", CGLErrorString(gl_err)); |
| 391 | |
| 392 | return gl_err == 0; |
| 393 | } |
| 394 | |
| 395 | static int |
| 396 | __glXAquaContextCopy(__GLXcontext *baseDst, __GLXcontext *baseSrc, |
| 397 | unsigned long mask) |
| 398 | { |
| 399 | CGLError gl_err; |
| 400 | |
| 401 | __GLXAquaContext *dst = (__GLXAquaContext *)baseDst; |
| 402 | __GLXAquaContext *src = (__GLXAquaContext *)baseSrc; |
| 403 | |
| 404 | GLAQUA_DEBUG_MSG("GLXAquaContextCopy\n"); |
| 405 | |
| 406 | gl_err = CGLCopyContext(src->ctx, dst->ctx, mask); |
| 407 | if (gl_err != 0) |
| 408 | ErrorF("CGLCopyContext error: %s\n", CGLErrorString(gl_err)); |
| 409 | |
| 410 | return gl_err == 0; |
| 411 | } |
| 412 | |
| 413 | /* Drawing surface notification callbacks */ |
| 414 | static GLboolean |
| 415 | __glXAquaDrawableSwapBuffers(ClientPtr client, __GLXdrawable *base) |
| 416 | { |
| 417 | CGLError err; |
| 418 | __GLXAquaDrawable *drawable; |
| 419 | |
| 420 | // GLAQUA_DEBUG_MSG("glAquaDrawableSwapBuffers(%p)\n",base); |
| 421 | |
| 422 | if (!base) { |
| 423 | ErrorF("%s passed NULL\n", __func__); |
| 424 | return GL_FALSE; |
| 425 | } |
| 426 | |
| 427 | drawable = (__GLXAquaDrawable *)base; |
| 428 | |
| 429 | if (NULL == drawable->context) { |
| 430 | ErrorF("%s called with a NULL->context for drawable %p!\n", |
| 431 | __func__, (void *)drawable); |
| 432 | return GL_FALSE; |
| 433 | } |
| 434 | |
| 435 | err = CGLFlushDrawable(drawable->context->ctx); |
| 436 | |
| 437 | if (kCGLNoError != err) { |
| 438 | ErrorF("CGLFlushDrawable error: %s in %s\n", CGLErrorString(err), |
| 439 | __func__); |
| 440 | return GL_FALSE; |
| 441 | } |
| 442 | |
| 443 | return GL_TRUE; |
| 444 | } |
| 445 | |
| 446 | static CGLPixelFormatObj |
| 447 | makeFormat(__GLXconfig *conf) |
| 448 | { |
| 449 | CGLPixelFormatAttribute attr[64]; |
| 450 | CGLPixelFormatObj fobj; |
| 451 | GLint formats; |
| 452 | CGLError error; |
| 453 | int i = 0; |
| 454 | |
| 455 | if (conf->doubleBufferMode) |
| 456 | attr[i++] = kCGLPFADoubleBuffer; |
| 457 | |
| 458 | if (conf->stereoMode) |
| 459 | attr[i++] = kCGLPFAStereo; |
| 460 | |
| 461 | attr[i++] = kCGLPFAColorSize; |
| 462 | attr[i++] = conf->redBits + conf->greenBits + conf->blueBits; |
| 463 | attr[i++] = kCGLPFAAlphaSize; |
| 464 | attr[i++] = conf->alphaBits; |
| 465 | |
| 466 | if ((conf->accumRedBits + conf->accumGreenBits + conf->accumBlueBits + |
| 467 | conf->accumAlphaBits) > 0) { |
| 468 | |
| 469 | attr[i++] = kCGLPFAAccumSize; |
| 470 | attr[i++] = conf->accumRedBits + conf->accumGreenBits |
| 471 | + conf->accumBlueBits + conf->accumAlphaBits; |
| 472 | } |
| 473 | |
| 474 | attr[i++] = kCGLPFADepthSize; |
| 475 | attr[i++] = conf->depthBits; |
| 476 | |
| 477 | if (conf->stencilBits) { |
| 478 | attr[i++] = kCGLPFAStencilSize; |
| 479 | attr[i++] = conf->stencilBits; |
| 480 | } |
| 481 | |
| 482 | if (conf->numAuxBuffers > 0) { |
| 483 | attr[i++] = kCGLPFAAuxBuffers; |
| 484 | attr[i++] = conf->numAuxBuffers; |
| 485 | } |
| 486 | |
| 487 | if (conf->sampleBuffers > 0) { |
| 488 | attr[i++] = kCGLPFASampleBuffers; |
| 489 | attr[i++] = conf->sampleBuffers; |
| 490 | attr[i++] = kCGLPFASamples; |
| 491 | attr[i++] = conf->samples; |
| 492 | } |
| 493 | |
| 494 | attr[i] = 0; |
| 495 | |
| 496 | error = CGLChoosePixelFormat(attr, &fobj, &formats); |
| 497 | if (error) { |
| 498 | ErrorF("error: creating pixel format %s\n", CGLErrorString(error)); |
| 499 | return NULL; |
| 500 | } |
| 501 | |
| 502 | return fobj; |
| 503 | } |
| 504 | |
| 505 | static void |
| 506 | __glXAquaScreenDestroy(__GLXscreen *screen) |
| 507 | { |
| 508 | |
| 509 | GLAQUA_DEBUG_MSG("glXAquaScreenDestroy(%p)\n", screen); |
| 510 | __glXScreenDestroy(screen); |
| 511 | |
| 512 | free(screen); |
| 513 | } |
| 514 | |
| 515 | /* This is called by __glXInitScreens(). */ |
| 516 | static __GLXscreen * |
| 517 | __glXAquaScreenProbe(ScreenPtr pScreen) |
| 518 | { |
| 519 | __GLXAquaScreen *screen; |
| 520 | |
| 521 | GLAQUA_DEBUG_MSG("glXAquaScreenProbe\n"); |
| 522 | |
| 523 | if (pScreen == NULL) |
| 524 | return NULL; |
| 525 | |
| 526 | screen = calloc(1, sizeof *screen); |
| 527 | |
| 528 | if (NULL == screen) |
| 529 | return NULL; |
| 530 | |
| 531 | screen->base.destroy = __glXAquaScreenDestroy; |
| 532 | screen->base.createContext = __glXAquaScreenCreateContext; |
| 533 | screen->base.createDrawable = __glXAquaScreenCreateDrawable; |
| 534 | screen->base.swapInterval = /*FIXME*/ NULL; |
| 535 | screen->base.pScreen = pScreen; |
| 536 | |
| 537 | screen->base.fbconfigs = __glXAquaCreateVisualConfigs( |
| 538 | &screen->base.numFBConfigs, pScreen->myNum); |
| 539 | |
| 540 | __glXScreenInit(&screen->base, pScreen); |
| 541 | |
| 542 | screen->base.GLXmajor = 1; |
| 543 | screen->base.GLXminor = 4; |
| 544 | screen->base.GLXextensions = strdup("GLX_SGIX_fbconfig " |
| 545 | "GLX_SGIS_multisample " |
| 546 | "GLX_ARB_multisample " |
| 547 | "GLX_EXT_visual_info " |
| 548 | "GLX_EXT_import_context "); |
| 549 | |
| 550 | /*We may be able to add more GLXextensions at a later time. */ |
| 551 | |
| 552 | return &screen->base; |
| 553 | } |
| 554 | |
| 555 | #if 0 // unused |
| 556 | static void |
| 557 | __glXAquaDrawableCopySubBuffer(__GLXdrawable *drawable, |
| 558 | int x, int y, int w, int h) |
| 559 | { |
| 560 | /*TODO finish me*/ |
| 561 | } |
| 562 | #endif |
| 563 | |
| 564 | static void |
| 565 | __glXAquaDrawableDestroy(__GLXdrawable *base) |
| 566 | { |
| 567 | /* gstaplin: base is the head of the structure, so it's at the same |
| 568 | * offset in memory. |
| 569 | * Is this safe with strict aliasing? I noticed that the other dri code |
| 570 | * does this too... |
| 571 | */ |
| 572 | __GLXAquaDrawable *glxPriv = (__GLXAquaDrawable *)base; |
| 573 | |
| 574 | GLAQUA_DEBUG_MSG("TRACE"); |
| 575 | |
| 576 | /* It doesn't work to call DRIDestroySurface here, the drawable's |
| 577 | already gone.. But dri.c notices the window destruction and |
| 578 | frees the surface itself. */ |
| 579 | |
| 580 | /*gstaplin: verify the statement above. The surface destroy |
| 581 | *messages weren't making it through, and may still not be. |
| 582 | *We need a good test case for surface creation and destruction. |
| 583 | *We also need a good way to enable introspection on the server |
| 584 | *to validate the test, beyond using gdb with print. |
| 585 | */ |
| 586 | |
| 587 | free(glxPriv); |
| 588 | } |
| 589 | |
| 590 | static __GLXdrawable * |
| 591 | __glXAquaScreenCreateDrawable(ClientPtr client, |
| 592 | __GLXscreen *screen, |
| 593 | DrawablePtr pDraw, |
| 594 | XID drawId, |
| 595 | int type, |
| 596 | XID glxDrawId, |
| 597 | __GLXconfig *conf) |
| 598 | { |
| 599 | __GLXAquaDrawable *glxPriv; |
| 600 | |
| 601 | glxPriv = malloc(sizeof *glxPriv); |
| 602 | |
| 603 | if (glxPriv == NULL) |
| 604 | return NULL; |
| 605 | |
| 606 | memset(glxPriv, 0, sizeof *glxPriv); |
| 607 | |
| 608 | if (!__glXDrawableInit(&glxPriv->base, screen, pDraw, type, glxDrawId, |
| 609 | conf)) { |
| 610 | free(glxPriv); |
| 611 | return NULL; |
| 612 | } |
| 613 | |
| 614 | glxPriv->base.destroy = __glXAquaDrawableDestroy; |
| 615 | glxPriv->base.swapBuffers = __glXAquaDrawableSwapBuffers; |
| 616 | glxPriv->base.copySubBuffer = NULL; /* __glXAquaDrawableCopySubBuffer; */ |
| 617 | |
| 618 | glxPriv->pDraw = pDraw; |
| 619 | glxPriv->sid = 0; |
| 620 | glxPriv->context = NULL; |
| 621 | |
| 622 | return &glxPriv->base; |
| 623 | } |
| 624 | |
| 625 | // Extra goodies for glx |
| 626 | |
| 627 | GLuint |
| 628 | __glFloorLog2(GLuint val) |
| 629 | { |
| 630 | int c = 0; |
| 631 | |
| 632 | while (val > 1) { |
| 633 | c++; |
| 634 | val >>= 1; |
| 635 | } |
| 636 | return c; |
| 637 | } |
| 638 | |
| 639 | #ifndef OPENGL_FRAMEWORK_PATH |
| 640 | #define OPENGL_FRAMEWORK_PATH \ |
| 641 | "/System/Library/Frameworks/OpenGL.framework/OpenGL" |
| 642 | #endif |
| 643 | |
| 644 | static void *opengl_framework_handle; |
| 645 | |
| 646 | static glx_func_ptr |
| 647 | get_proc_address(const char *sym) |
| 648 | { |
| 649 | return (glx_func_ptr) dlsym(opengl_framework_handle, sym); |
| 650 | } |
| 651 | |
| 652 | static void |
| 653 | setup_dispatch_table(void) |
| 654 | { |
| 655 | const char *opengl_framework_path; |
| 656 | |
| 657 | if (opengl_framework_handle) { |
| 658 | return; |
| 659 | } |
| 660 | |
| 661 | opengl_framework_path = getenv("OPENGL_FRAMEWORK_PATH"); |
| 662 | if (!opengl_framework_path) { |
| 663 | opengl_framework_path = OPENGL_FRAMEWORK_PATH; |
| 664 | } |
| 665 | |
| 666 | (void)dlerror(); /*drain dlerror */ |
| 667 | opengl_framework_handle = dlopen(opengl_framework_path, RTLD_LOCAL); |
| 668 | |
| 669 | if (!opengl_framework_handle) { |
| 670 | ErrorF("unable to dlopen %s : %s, using RTLD_DEFAULT\n", |
| 671 | opengl_framework_path, dlerror()); |
| 672 | opengl_framework_handle = RTLD_DEFAULT; |
| 673 | } |
| 674 | |
| 675 | __glXsetGetProcAddress(get_proc_address); |
| 676 | } |