Jon Turney | 533b353 | 2016-07-11 21:38:16 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2014 Jon Turney |
| 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 |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 21 | * IN THE SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #include "glxclient.h" |
| 25 | #include "glx_error.h" |
| 26 | #include "dri_common.h" |
Eric Engestrom | 440ab62 | 2017-09-04 13:51:53 +0100 | [diff] [blame] | 27 | #include "util/macros.h" |
Jon Turney | 533b353 | 2016-07-11 21:38:16 +0100 | [diff] [blame] | 28 | #include "windows/xwindowsdri.h" |
| 29 | #include "windows/windowsgl.h" |
| 30 | |
| 31 | struct driwindows_display |
| 32 | { |
| 33 | __GLXDRIdisplay base; |
| 34 | int event_base; |
| 35 | }; |
| 36 | |
| 37 | struct driwindows_context |
| 38 | { |
| 39 | struct glx_context base; |
| 40 | windowsContext *windowsContext; |
| 41 | }; |
| 42 | |
| 43 | struct driwindows_config |
| 44 | { |
| 45 | struct glx_config base; |
| 46 | int pxfi; |
| 47 | }; |
| 48 | |
| 49 | struct driwindows_screen |
| 50 | { |
| 51 | struct glx_screen base; |
| 52 | __DRIscreen *driScreen; |
| 53 | __GLXDRIscreen vtable; |
| 54 | Bool copySubBuffer; |
| 55 | }; |
| 56 | |
| 57 | struct driwindows_drawable |
| 58 | { |
| 59 | __GLXDRIdrawable base; |
| 60 | windowsDrawable *windowsDrawable; |
| 61 | }; |
| 62 | |
| 63 | /** |
| 64 | * GLXDRI functions |
| 65 | */ |
| 66 | |
| 67 | static void |
| 68 | driwindows_destroy_context(struct glx_context *context) |
| 69 | { |
| 70 | struct driwindows_context *pcp = (struct driwindows_context *) context; |
| 71 | |
| 72 | driReleaseDrawables(&pcp->base); |
| 73 | |
| 74 | free((char *) context->extensions); |
| 75 | |
| 76 | windows_destroy_context(pcp->windowsContext); |
| 77 | |
| 78 | free(pcp); |
| 79 | } |
| 80 | |
| 81 | static int |
| 82 | driwindows_bind_context(struct glx_context *context, struct glx_context *old, |
| 83 | GLXDrawable draw, GLXDrawable read) |
| 84 | { |
| 85 | struct driwindows_context *pcp = (struct driwindows_context *) context; |
| 86 | struct driwindows_drawable *pdraw, *pread; |
| 87 | |
| 88 | pdraw = (struct driwindows_drawable *) driFetchDrawable(context, draw); |
| 89 | pread = (struct driwindows_drawable *) driFetchDrawable(context, read); |
| 90 | |
| 91 | driReleaseDrawables(&pcp->base); |
| 92 | |
| 93 | if (pdraw == NULL || pread == NULL) |
| 94 | return GLXBadDrawable; |
| 95 | |
| 96 | if (windows_bind_context(pcp->windowsContext, |
| 97 | pdraw->windowsDrawable, pread->windowsDrawable)) |
| 98 | return Success; |
| 99 | |
| 100 | return GLXBadContext; |
| 101 | } |
| 102 | |
| 103 | static void |
| 104 | driwindows_unbind_context(struct glx_context *context, struct glx_context *new) |
| 105 | { |
| 106 | struct driwindows_context *pcp = (struct driwindows_context *) context; |
| 107 | |
| 108 | windows_unbind_context(pcp->windowsContext); |
| 109 | } |
| 110 | |
| 111 | static void |
| 112 | driwindows_bind_tex_image(Display * dpy, |
| 113 | GLXDrawable drawable, |
| 114 | int buffer, const int *attrib_list) |
| 115 | { |
| 116 | struct glx_context *gc = __glXGetCurrentContext(); |
| 117 | struct driwindows_context *pcp = (struct driwindows_context *) gc; |
| 118 | __GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); |
| 119 | struct driwindows_drawable *pdraw = (struct driwindows_drawable *) base; |
| 120 | |
| 121 | __glXInitialize(dpy); |
| 122 | |
| 123 | if (pdraw != NULL) { |
| 124 | windows_setTexBuffer(pcp->windowsContext, |
| 125 | pdraw->base.textureTarget, |
| 126 | pdraw->base.textureFormat, |
| 127 | pdraw->windowsDrawable); |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | static void |
| 132 | driwindows_release_tex_image(Display * dpy, GLXDrawable drawable, int buffer) |
| 133 | { |
| 134 | struct glx_context *gc = __glXGetCurrentContext(); |
| 135 | struct driwindows_context *pcp = (struct driwindows_context *) gc; |
| 136 | __GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); |
| 137 | struct glx_display *dpyPriv = __glXInitialize(dpy); |
| 138 | struct driwindows_drawable *pdraw = (struct driwindows_drawable *) base; |
| 139 | |
| 140 | if (dpyPriv != NULL && pdraw != NULL) { |
| 141 | windows_releaseTexBuffer(pcp->windowsContext, |
| 142 | pdraw->base.textureTarget, |
| 143 | pdraw->windowsDrawable); |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | static const struct glx_context_vtable driwindows_context_vtable = { |
| 148 | .destroy = driwindows_destroy_context, |
| 149 | .bind = driwindows_bind_context, |
| 150 | .unbind = driwindows_unbind_context, |
| 151 | .wait_gl = NULL, |
| 152 | .wait_x = NULL, |
| 153 | .use_x_font = DRI_glXUseXFont, |
| 154 | .bind_tex_image = driwindows_bind_tex_image, |
| 155 | .release_tex_image = driwindows_release_tex_image, |
| 156 | .get_proc_address = NULL, |
| 157 | }; |
| 158 | |
| 159 | static struct glx_context * |
| 160 | driwindows_create_context(struct glx_screen *base, |
| 161 | struct glx_config *config_base, |
| 162 | struct glx_context *shareList, int renderType) |
| 163 | { |
| 164 | struct driwindows_context *pcp, *pcp_shared; |
| 165 | struct driwindows_config *config = (struct driwindows_config *) config_base; |
| 166 | struct driwindows_screen *psc = (struct driwindows_screen *) base; |
| 167 | windowsContext *shared = NULL; |
| 168 | |
| 169 | if (!psc->base.driScreen) |
| 170 | return NULL; |
| 171 | |
| 172 | /* Check the renderType value */ |
| 173 | if (!validate_renderType_against_config(config_base, renderType)) |
| 174 | return NULL; |
| 175 | |
| 176 | if (shareList) { |
| 177 | /* If the shareList context is not on this renderer, we cannot possibly |
| 178 | * create a context that shares with it. |
| 179 | */ |
| 180 | if (shareList->vtable->destroy != driwindows_destroy_context) { |
| 181 | return NULL; |
| 182 | } |
| 183 | |
| 184 | pcp_shared = (struct driwindows_context *) shareList; |
| 185 | shared = pcp_shared->windowsContext; |
| 186 | } |
| 187 | |
| 188 | pcp = calloc(1, sizeof *pcp); |
| 189 | if (pcp == NULL) |
| 190 | return NULL; |
| 191 | |
| 192 | if (!glx_context_init(&pcp->base, &psc->base, &config->base)) { |
| 193 | free(pcp); |
| 194 | return NULL; |
| 195 | } |
| 196 | |
| 197 | pcp->base.renderType = renderType; |
| 198 | |
| 199 | InfoMessageF("visualID %x, fbConfigID %x -> pxfi %d\n", config_base->visualID, config_base->fbconfigID, config->pxfi); |
| 200 | |
| 201 | pcp->windowsContext = windows_create_context(config->pxfi, shared); |
| 202 | |
| 203 | if (!pcp->windowsContext) { |
| 204 | free(pcp); |
| 205 | return NULL; |
| 206 | } |
| 207 | |
| 208 | pcp->base.vtable = &driwindows_context_vtable; |
| 209 | |
| 210 | return &pcp->base; |
| 211 | } |
| 212 | |
| 213 | static struct glx_context * |
| 214 | driwindows_create_context_attribs(struct glx_screen *base, |
| 215 | struct glx_config *config_base, |
| 216 | struct glx_context *shareList, |
| 217 | unsigned num_attribs, |
| 218 | const uint32_t *attribs, |
| 219 | unsigned *error) |
| 220 | { |
| 221 | struct driwindows_context *pcp, *pcp_shared; |
| 222 | struct driwindows_config *config = (struct driwindows_config *) config_base; |
| 223 | struct driwindows_screen *psc = (struct driwindows_screen *) base; |
| 224 | windowsContext *shared = NULL; |
| 225 | |
| 226 | int i; |
| 227 | uint32_t renderType = GLX_RGBA_TYPE; |
| 228 | |
| 229 | /* Extract renderType from attribs */ |
| 230 | for (i = 0; i < num_attribs; i++) { |
| 231 | switch (attribs[i * 2]) { |
| 232 | case GLX_RENDER_TYPE: |
| 233 | renderType = attribs[i * 2 + 1]; |
| 234 | break; |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | /* |
| 239 | Perhaps we should map GLX tokens to WGL tokens, but they appear to have |
| 240 | identical values, so far |
| 241 | */ |
| 242 | |
Adam Jackson | a14e3b4 | 2019-09-26 11:07:13 -0400 | [diff] [blame] | 243 | if (!psc->base.driScreen) |
Jon Turney | 533b353 | 2016-07-11 21:38:16 +0100 | [diff] [blame] | 244 | return NULL; |
| 245 | |
| 246 | /* Check the renderType value */ |
| 247 | if (!validate_renderType_against_config(config_base, renderType)) { |
| 248 | return NULL; |
| 249 | } |
| 250 | |
| 251 | if (shareList) { |
| 252 | /* If the shareList context is not on this renderer, we cannot possibly |
| 253 | * create a context that shares with it. |
| 254 | */ |
| 255 | if (shareList->vtable->destroy != driwindows_destroy_context) { |
| 256 | return NULL; |
| 257 | } |
| 258 | |
| 259 | pcp_shared = (struct driwindows_context *) shareList; |
| 260 | shared = pcp_shared->windowsContext; |
| 261 | } |
| 262 | |
| 263 | pcp = calloc(1, sizeof *pcp); |
| 264 | if (pcp == NULL) |
| 265 | return NULL; |
| 266 | |
| 267 | if (!glx_context_init(&pcp->base, &psc->base, &config->base)) { |
| 268 | free(pcp); |
| 269 | return NULL; |
| 270 | } |
| 271 | |
| 272 | pcp->base.renderType = renderType; |
| 273 | |
| 274 | InfoMessageF("visualID %x, fbConfigID %x -> pxfi %d\n", config_base->visualID, config_base->fbconfigID, config->pxfi); |
| 275 | |
| 276 | pcp->windowsContext = windows_create_context_attribs(config->pxfi, |
| 277 | shared, |
| 278 | (const int *)attribs); |
| 279 | if (pcp->windowsContext == NULL) { |
| 280 | free(pcp); |
| 281 | return NULL; |
| 282 | } |
| 283 | |
| 284 | pcp->base.vtable = &driwindows_context_vtable; |
| 285 | |
| 286 | return &pcp->base; |
| 287 | } |
| 288 | |
| 289 | static void |
| 290 | driwindowsDestroyDrawable(__GLXDRIdrawable * pdraw) |
| 291 | { |
| 292 | struct driwindows_drawable *pdp = (struct driwindows_drawable *) pdraw; |
| 293 | |
| 294 | windows_destroy_drawable(pdp->windowsDrawable); |
| 295 | |
| 296 | free(pdp); |
| 297 | } |
| 298 | |
| 299 | static __GLXDRIdrawable * |
| 300 | driwindowsCreateDrawable(struct glx_screen *base, XID xDrawable, |
| 301 | GLXDrawable drawable, struct glx_config *modes) |
| 302 | { |
| 303 | struct driwindows_drawable *pdp; |
| 304 | struct driwindows_screen *psc = (struct driwindows_screen *) base; |
| 305 | |
| 306 | pdp = calloc(1, sizeof(*pdp)); |
| 307 | if (!pdp) |
| 308 | return NULL; |
| 309 | |
| 310 | pdp->base.xDrawable = xDrawable; |
| 311 | pdp->base.drawable = drawable; |
| 312 | pdp->base.psc = &psc->base; |
| 313 | |
| 314 | /* |
| 315 | By this stage, the X drawable already exists, but the GLX drawable may |
| 316 | not. |
| 317 | |
| 318 | Query the server with the XID to find the correct HWND, HPBUFFERARB or |
| 319 | HBITMAP |
| 320 | */ |
| 321 | |
| 322 | unsigned int type; |
| 323 | void *handle; |
| 324 | |
| 325 | if (!XWindowsDRIQueryDrawable(psc->base.dpy, base->scr, drawable, &type, &handle)) |
| 326 | { |
| 327 | free(pdp); |
| 328 | return NULL; |
| 329 | } |
| 330 | |
| 331 | /* No handle found is a failure */ |
| 332 | if (!handle) { |
| 333 | free(pdp); |
| 334 | return NULL; |
| 335 | } |
| 336 | |
| 337 | /* Create a new drawable */ |
| 338 | pdp->windowsDrawable = windows_create_drawable(type, handle); |
| 339 | |
| 340 | if (!pdp->windowsDrawable) { |
| 341 | free(pdp); |
| 342 | return NULL; |
| 343 | } |
| 344 | |
| 345 | pdp->base.destroyDrawable = driwindowsDestroyDrawable; |
| 346 | |
| 347 | return &pdp->base; |
| 348 | } |
| 349 | |
| 350 | static int64_t |
| 351 | driwindowsSwapBuffers(__GLXDRIdrawable * pdraw, |
| 352 | int64_t target_msc, int64_t divisor, int64_t remainder, |
| 353 | Bool flush) |
| 354 | { |
| 355 | struct driwindows_drawable *pdp = (struct driwindows_drawable *) pdraw; |
| 356 | |
| 357 | (void) target_msc; |
| 358 | (void) divisor; |
| 359 | (void) remainder; |
| 360 | |
| 361 | if (flush) { |
| 362 | glFlush(); |
| 363 | } |
| 364 | |
| 365 | windows_swap_buffers(pdp->windowsDrawable); |
| 366 | |
| 367 | return 0; |
| 368 | } |
| 369 | |
| 370 | static void |
| 371 | driwindowsCopySubBuffer(__GLXDRIdrawable * pdraw, |
| 372 | int x, int y, int width, int height, Bool flush) |
| 373 | { |
| 374 | struct driwindows_drawable *pdp = (struct driwindows_drawable *) pdraw; |
| 375 | |
| 376 | if (flush) { |
| 377 | glFlush(); |
| 378 | } |
| 379 | |
| 380 | windows_copy_subbuffer(pdp->windowsDrawable, x, y, width, height); |
| 381 | } |
| 382 | |
| 383 | static void |
| 384 | driwindowsDestroyScreen(struct glx_screen *base) |
| 385 | { |
| 386 | struct driwindows_screen *psc = (struct driwindows_screen *) base; |
| 387 | |
| 388 | /* Free the direct rendering per screen data */ |
| 389 | psc->driScreen = NULL; |
| 390 | free(psc); |
| 391 | } |
| 392 | |
| 393 | static const struct glx_screen_vtable driwindows_screen_vtable = { |
| 394 | .create_context = driwindows_create_context, |
| 395 | .create_context_attribs = driwindows_create_context_attribs, |
| 396 | .query_renderer_integer = NULL, |
| 397 | .query_renderer_string = NULL, |
| 398 | }; |
| 399 | |
| 400 | static Bool |
| 401 | driwindowsBindExtensions(struct driwindows_screen *psc) |
| 402 | { |
| 403 | Bool result = 1; |
| 404 | |
| 405 | const struct |
| 406 | { |
| 407 | char *wglext; |
| 408 | char *glxext; |
| 409 | Bool mandatory; |
| 410 | } extensionMap[] = { |
| 411 | { "WGL_ARB_make_current_read", "GLX_SGI_make_current_read", 0 }, |
| 412 | { "WGL_EXT_swap_control", "GLX_SGI_swap_control", 0 }, |
| 413 | { "WGL_EXT_swap_control", "GLX_MESA_swap_control", 0 }, |
| 414 | // { "WGL_ARB_render_texture", "GLX_EXT_texture_from_pixmap", 0 }, |
| 415 | // Not exactly equivalent, needs some more glue to be written |
| 416 | { "WGL_ARB_pbuffer", "GLX_SGIX_pbuffer", 1 }, |
| 417 | { "WGL_ARB_multisample", "GLX_ARB_multisample", 1 }, |
| 418 | { "WGL_ARB_multisample", "GLX_SGIS_multisample", 1 }, |
| 419 | { "WGL_ARB_create_context", "GLX_ARB_create_context", 0 }, |
| 420 | { "WGL_ARB_create_context_profile", "GLX_ARB_create_context_profile", 0 }, |
| 421 | { "WGL_ARB_create_context_robustness", "GLX_ARB_create_context_robustness", 0 }, |
| 422 | { "WGL_EXT_create_context_es2_profile", "GLX_EXT_create_context_es2_profile", 0 }, |
| 423 | }; |
| 424 | |
| 425 | char *wgl_extensions; |
| 426 | char *gl_extensions; |
| 427 | int i; |
| 428 | |
| 429 | windows_extensions(&gl_extensions, &wgl_extensions); |
| 430 | |
Eric Engestrom | 440ab62 | 2017-09-04 13:51:53 +0100 | [diff] [blame] | 431 | for (i = 0; i < ARRAY_SIZE(extensionMap); i++) { |
Jon Turney | 533b353 | 2016-07-11 21:38:16 +0100 | [diff] [blame] | 432 | if (strstr(wgl_extensions, extensionMap[i].wglext)) { |
| 433 | __glXEnableDirectExtension(&psc->base, extensionMap[i].glxext); |
| 434 | InfoMessageF("enabled %s\n", extensionMap[i].glxext); |
| 435 | } |
| 436 | else if (extensionMap[i].mandatory) { |
| 437 | ErrorMessageF("required WGL extension %s is missing\n", extensionMap[i].wglext); |
| 438 | result = 0; |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | /* |
| 443 | Because it pre-dates WGL_EXT_extensions_string, GL_WIN_swap_hint might |
| 444 | only be in GL_EXTENSIONS |
| 445 | */ |
| 446 | if (strstr(gl_extensions, "GL_WIN_swap_hint")) { |
| 447 | psc->copySubBuffer = 1; |
| 448 | __glXEnableDirectExtension(&psc->base, "GLX_MESA_copy_sub_buffer"); |
| 449 | InfoMessageF("enabled GLX_MESA_copy_sub_buffer\n"); |
| 450 | } |
| 451 | |
| 452 | free(gl_extensions); |
| 453 | free(wgl_extensions); |
| 454 | |
| 455 | return result; |
| 456 | } |
| 457 | |
| 458 | static struct glx_config * |
| 459 | driwindowsMapConfigs(struct glx_display *priv, int screen, struct glx_config *configs, struct glx_config *fbconfigs) |
| 460 | { |
| 461 | struct glx_config head, *tail, *m; |
| 462 | |
| 463 | tail = &head; |
| 464 | head.next = NULL; |
| 465 | |
| 466 | for (m = configs; m; m = m->next) { |
| 467 | int fbconfigID = GLX_DONT_CARE; |
| 468 | if (fbconfigs) { |
| 469 | /* |
| 470 | visuals have fbconfigID of GLX_DONT_CARE, so search for a fbconfig |
| 471 | with matching visualID and get the fbconfigID from there |
| 472 | */ |
| 473 | struct glx_config *f; |
| 474 | for (f = fbconfigs; f; f = f->next) { |
| 475 | if (f->visualID == m->visualID) |
| 476 | fbconfigID = f->fbconfigID; |
| 477 | } |
| 478 | } |
| 479 | else { |
| 480 | fbconfigID = m->fbconfigID; |
| 481 | } |
| 482 | |
| 483 | int pxfi; |
| 484 | XWindowsDRIFBConfigToPixelFormat(priv->dpy, screen, fbconfigID, &pxfi); |
| 485 | if (pxfi == 0) |
| 486 | continue; |
| 487 | |
| 488 | struct driwindows_config *config = malloc(sizeof(*config)); |
| 489 | |
| 490 | tail->next = &config->base; |
| 491 | if (tail->next == NULL) |
| 492 | continue; |
| 493 | |
| 494 | config->base = *m; |
| 495 | config->pxfi = pxfi; |
| 496 | |
| 497 | tail = tail->next; |
| 498 | } |
| 499 | |
| 500 | return head.next; |
| 501 | } |
| 502 | |
| 503 | static struct glx_screen * |
| 504 | driwindowsCreateScreen(int screen, struct glx_display *priv) |
| 505 | { |
| 506 | __GLXDRIscreen *psp; |
| 507 | struct driwindows_screen *psc; |
| 508 | struct glx_config *configs = NULL, *visuals = NULL; |
| 509 | int directCapable; |
| 510 | |
| 511 | psc = calloc(1, sizeof *psc); |
| 512 | if (psc == NULL) |
| 513 | return NULL; |
| 514 | |
| 515 | if (!glx_screen_init(&psc->base, screen, priv)) { |
| 516 | free(psc); |
| 517 | return NULL; |
| 518 | } |
| 519 | |
| 520 | if (!XWindowsDRIQueryDirectRenderingCapable(psc->base.dpy, screen, &directCapable) || |
| 521 | !directCapable) { |
| 522 | ErrorMessageF("Screen is not Windows-DRI capable\n"); |
| 523 | goto handle_error; |
| 524 | } |
| 525 | |
| 526 | /* discover native supported extensions */ |
| 527 | if (!driwindowsBindExtensions(psc)) { |
| 528 | goto handle_error; |
| 529 | } |
| 530 | |
| 531 | /* Augment configs with pxfi information */ |
| 532 | configs = driwindowsMapConfigs(priv, screen, psc->base.configs, NULL); |
| 533 | visuals = driwindowsMapConfigs(priv, screen, psc->base.visuals, configs); |
| 534 | |
| 535 | if (!configs || !visuals) { |
| 536 | ErrorMessageF("No fbConfigs or visuals found\n"); |
| 537 | goto handle_error; |
| 538 | } |
| 539 | |
| 540 | glx_config_destroy_list(psc->base.configs); |
| 541 | psc->base.configs = configs; |
| 542 | glx_config_destroy_list(psc->base.visuals); |
| 543 | psc->base.visuals = visuals; |
| 544 | |
| 545 | psc->base.vtable = &driwindows_screen_vtable; |
| 546 | psp = &psc->vtable; |
| 547 | psc->base.driScreen = psp; |
| 548 | psp->destroyScreen = driwindowsDestroyScreen; |
| 549 | psp->createDrawable = driwindowsCreateDrawable; |
| 550 | psp->swapBuffers = driwindowsSwapBuffers; |
| 551 | |
| 552 | if (psc->copySubBuffer) |
| 553 | psp->copySubBuffer = driwindowsCopySubBuffer; |
| 554 | |
| 555 | return &psc->base; |
| 556 | |
| 557 | handle_error: |
| 558 | glx_screen_cleanup(&psc->base); |
| 559 | |
| 560 | return NULL; |
| 561 | } |
| 562 | |
| 563 | /* Called from __glXFreeDisplayPrivate. |
| 564 | */ |
| 565 | static void |
| 566 | driwindowsDestroyDisplay(__GLXDRIdisplay * dpy) |
| 567 | { |
| 568 | free(dpy); |
| 569 | } |
| 570 | |
| 571 | /* |
| 572 | * Allocate, initialize and return a __GLXDRIdisplay object. |
| 573 | * This is called from __glXInitialize() when we are given a new |
| 574 | * display pointer. |
| 575 | */ |
| 576 | _X_HIDDEN __GLXDRIdisplay * |
| 577 | driwindowsCreateDisplay(Display * dpy) |
| 578 | { |
| 579 | struct driwindows_display *pdpyp; |
| 580 | |
| 581 | int eventBase, errorBase; |
| 582 | int major, minor, patch; |
| 583 | |
| 584 | /* Verify server has Windows-DRI extension */ |
| 585 | if (!XWindowsDRIQueryExtension(dpy, &eventBase, &errorBase)) { |
| 586 | ErrorMessageF("Windows-DRI extension not available\n"); |
| 587 | return NULL; |
| 588 | } |
| 589 | |
| 590 | if (!XWindowsDRIQueryVersion(dpy, &major, &minor, &patch)) { |
| 591 | ErrorMessageF("Fetching Windows-DRI extension version failed\n"); |
| 592 | return NULL; |
| 593 | } |
| 594 | |
| 595 | if (!windows_check_renderer()) { |
| 596 | ErrorMessageF("Windows-DRI extension disabled for GDI Generic renderer\n"); |
| 597 | return NULL; |
| 598 | } |
| 599 | |
| 600 | pdpyp = malloc(sizeof *pdpyp); |
| 601 | if (pdpyp == NULL) |
| 602 | return NULL; |
| 603 | |
| 604 | pdpyp->base.destroyDisplay = driwindowsDestroyDisplay; |
| 605 | pdpyp->base.createScreen = driwindowsCreateScreen; |
| 606 | |
| 607 | pdpyp->event_base = eventBase; |
| 608 | |
| 609 | return &pdpyp->base; |
| 610 | } |