J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #include <stdlib.h> |
| 27 | #include <string.h> |
| 28 | |
| 29 | #include "sun_java2d_opengl_GLXGraphicsConfig.h" |
| 30 | |
| 31 | #include "jni.h" |
| 32 | #include "jlong.h" |
| 33 | #include "GLXGraphicsConfig.h" |
| 34 | #include "GLXSurfaceData.h" |
| 35 | #include "awt_GraphicsEnv.h" |
| 36 | #include "awt_util.h" |
| 37 | |
| 38 | #ifndef HEADLESS |
| 39 | |
| 40 | extern Bool usingXinerama; |
| 41 | |
| 42 | /** |
| 43 | * This is a globally shared context used when creating textures. When any |
| 44 | * new contexts are created, they specify this context as the "share list" |
| 45 | * context, which means any texture objects created when this shared context |
| 46 | * is current will be available to any other context. |
| 47 | */ |
| 48 | static GLXContext sharedContext = 0; |
| 49 | |
| 50 | /** |
| 51 | * Attempts to initialize GLX and the core OpenGL library. For this method |
| 52 | * to return JNI_TRUE, the following must be true: |
| 53 | * - libGL must be loaded successfully (via dlopen) |
| 54 | * - all function symbols from libGL must be available and loaded properly |
| 55 | * - the GLX extension must be available through X11 |
| 56 | * - client GLX version must be >= 1.3 |
| 57 | * If any of these requirements are not met, this method will return |
| 58 | * JNI_FALSE, indicating there is no hope of using GLX/OpenGL for any |
| 59 | * GraphicsConfig in the environment. |
| 60 | */ |
| 61 | static jboolean |
| 62 | GLXGC_InitGLX() |
| 63 | { |
| 64 | int errorbase, eventbase; |
| 65 | const char *version; |
| 66 | |
| 67 | J2dRlsTraceLn(J2D_TRACE_INFO, "GLXGC_InitGLX"); |
| 68 | |
| 69 | if (!OGLFuncs_OpenLibrary()) { |
| 70 | return JNI_FALSE; |
| 71 | } |
| 72 | |
| 73 | if (!OGLFuncs_InitPlatformFuncs() || |
| 74 | !OGLFuncs_InitBaseFuncs() || |
| 75 | !OGLFuncs_InitExtFuncs()) |
| 76 | { |
| 77 | OGLFuncs_CloseLibrary(); |
| 78 | return JNI_FALSE; |
| 79 | } |
| 80 | |
| 81 | if (!j2d_glXQueryExtension(awt_display, &errorbase, &eventbase)) { |
| 82 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 83 | "GLXGC_InitGLX: GLX extension is not present"); |
| 84 | OGLFuncs_CloseLibrary(); |
| 85 | return JNI_FALSE; |
| 86 | } |
| 87 | |
| 88 | version = j2d_glXGetClientString(awt_display, GLX_VERSION); |
| 89 | if (version == NULL) { |
| 90 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 91 | "GLXGC_InitGLX: could not query GLX version"); |
| 92 | OGLFuncs_CloseLibrary(); |
| 93 | return JNI_FALSE; |
| 94 | } |
| 95 | |
| 96 | // we now only verify that the client GLX version is >= 1.3 (if the |
| 97 | // server does not support GLX 1.3, then we will find that out later |
| 98 | // when we attempt to create a GLXFBConfig) |
| 99 | J2dRlsTraceLn1(J2D_TRACE_INFO, |
| 100 | "GLXGC_InitGLX: client GLX version=%s", version); |
| 101 | if (!((version[0] == '1' && version[2] >= '3') || (version[0] > '1'))) { |
| 102 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 103 | "GLXGC_InitGLX: invalid GLX version; 1.3 is required"); |
| 104 | OGLFuncs_CloseLibrary(); |
| 105 | return JNI_FALSE; |
| 106 | } |
| 107 | |
| 108 | return JNI_TRUE; |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Returns JNI_TRUE if GLX is available for the current display. Note that |
| 113 | * this method will attempt to initialize GLX (and all the necessary function |
| 114 | * symbols) if it has not been already. The AWT_LOCK must be acquired before |
| 115 | * calling this method. |
| 116 | */ |
| 117 | jboolean |
| 118 | GLXGC_IsGLXAvailable() |
| 119 | { |
| 120 | static jboolean glxAvailable = JNI_FALSE; |
| 121 | static jboolean firstTime = JNI_TRUE; |
| 122 | |
| 123 | J2dTraceLn(J2D_TRACE_INFO, "GLXGC_IsGLXAvailable"); |
| 124 | |
| 125 | if (firstTime) { |
| 126 | glxAvailable = GLXGC_InitGLX(); |
| 127 | firstTime = JNI_FALSE; |
| 128 | } |
| 129 | |
| 130 | return glxAvailable; |
| 131 | } |
| 132 | |
| 133 | /** |
| 134 | * Disposes all memory and resources allocated for the given OGLContext. |
| 135 | */ |
| 136 | static void |
| 137 | GLXGC_DestroyOGLContext(OGLContext *oglc) |
| 138 | { |
| 139 | GLXCtxInfo *ctxinfo; |
| 140 | |
| 141 | J2dTraceLn(J2D_TRACE_INFO, "GLXGC_DestroyOGLContext"); |
| 142 | |
| 143 | if (oglc == NULL) { |
| 144 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 145 | "GLXGC_DestroyOGLContext: context is null"); |
| 146 | return; |
| 147 | } |
| 148 | |
| 149 | // at this point, this context will be current to its scratch surface |
| 150 | // so the following GL/GLX operations should be safe... |
| 151 | |
| 152 | OGLContext_DestroyContextResources(oglc); |
| 153 | |
| 154 | ctxinfo = (GLXCtxInfo *)oglc->ctxInfo; |
| 155 | if (ctxinfo != NULL) { |
| 156 | // release the current context before we continue |
| 157 | j2d_glXMakeContextCurrent(awt_display, None, None, NULL); |
| 158 | |
| 159 | if (ctxinfo->context != 0) { |
| 160 | j2d_glXDestroyContext(awt_display, ctxinfo->context); |
| 161 | } |
| 162 | if (ctxinfo->scratchSurface != 0) { |
| 163 | j2d_glXDestroyPbuffer(awt_display, ctxinfo->scratchSurface); |
| 164 | } |
| 165 | |
| 166 | free(ctxinfo); |
| 167 | } |
| 168 | |
| 169 | free(oglc); |
| 170 | } |
| 171 | |
| 172 | /** |
| 173 | * Disposes all memory and resources associated with the given |
| 174 | * GLXGraphicsConfigInfo (including its native OGLContext data). |
| 175 | */ |
| 176 | void |
| 177 | OGLGC_DestroyOGLGraphicsConfig(jlong pConfigInfo) |
| 178 | { |
| 179 | GLXGraphicsConfigInfo *glxinfo = |
| 180 | (GLXGraphicsConfigInfo *)jlong_to_ptr(pConfigInfo); |
| 181 | |
| 182 | J2dTraceLn(J2D_TRACE_INFO, "OGLGC_DestroyOGLGraphicsConfig"); |
| 183 | |
| 184 | if (glxinfo == NULL) { |
| 185 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 186 | "OGLGC_DestroyOGLGraphicsConfig: info is null"); |
| 187 | return; |
| 188 | } |
| 189 | |
| 190 | if (glxinfo->context != NULL) { |
| 191 | GLXGC_DestroyOGLContext(glxinfo->context); |
| 192 | } |
| 193 | |
| 194 | free(glxinfo); |
| 195 | } |
| 196 | |
| 197 | /** |
| 198 | * Attempts to create a new GLXFBConfig for the requested screen and visual. |
| 199 | * If visualid is 0, this method will iterate through all GLXFBConfigs (if |
| 200 | * any) that match the requested attributes and will attempt to find an |
| 201 | * fbconfig with a minimal combined depth+stencil buffer. Note that we |
| 202 | * currently only need depth capabilities (for shape clipping purposes), but |
| 203 | * glXChooseFBConfig() will often return a list of fbconfigs with the largest |
| 204 | * depth buffer (and stencil) sizes at the top of the list. Therefore, we |
| 205 | * scan through the whole list to find the most VRAM-efficient fbconfig. |
| 206 | * If visualid is non-zero, the GLXFBConfig associated with the given visual |
| 207 | * is chosen (assuming it meets the requested attributes). If there are no |
| 208 | * valid GLXFBConfigs available, this method returns 0. |
| 209 | */ |
| 210 | static GLXFBConfig |
| 211 | GLXGC_InitFBConfig(JNIEnv *env, jint screennum, VisualID visualid) |
| 212 | { |
| 213 | GLXFBConfig *fbconfigs; |
| 214 | GLXFBConfig chosenConfig = 0; |
| 215 | int nconfs, i; |
| 216 | int attrlist[] = {GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT | GLX_PBUFFER_BIT, |
| 217 | GLX_RENDER_TYPE, GLX_RGBA_BIT, |
| 218 | GLX_CONFIG_CAVEAT, GLX_NONE, // avoid "slow" configs |
| 219 | GLX_DEPTH_SIZE, 16, // anything >= 16 will work for us |
| 220 | 0}; |
| 221 | |
| 222 | // this is the initial minimum value for the combined depth+stencil size |
| 223 | // (we initialize it to some absurdly high value; realistic values will |
| 224 | // be much less than this number) |
| 225 | int minDepthPlusStencil = 512; |
| 226 | |
| 227 | J2dRlsTraceLn2(J2D_TRACE_INFO, "GLXGC_InitFBConfig: scn=%d vis=0x%x", |
| 228 | screennum, visualid); |
| 229 | |
| 230 | // find all fbconfigs for this screen with the provided attributes |
| 231 | fbconfigs = j2d_glXChooseFBConfig(awt_display, screennum, |
| 232 | attrlist, &nconfs); |
| 233 | |
| 234 | if ((fbconfigs == NULL) || (nconfs <= 0)) { |
| 235 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 236 | "GLXGC_InitFBConfig: could not find any valid fbconfigs"); |
| 237 | return 0; |
| 238 | } |
| 239 | |
| 240 | J2dRlsTraceLn(J2D_TRACE_VERBOSE, " candidate fbconfigs:"); |
| 241 | |
| 242 | // iterate through the list of fbconfigs, looking for the one that matches |
| 243 | // the requested VisualID and supports RGBA rendering as well as the |
| 244 | // creation of windows and pbuffers |
| 245 | for (i = 0; i < nconfs; i++) { |
| 246 | XVisualInfo *xvi; |
| 247 | VisualID fbvisualid; |
| 248 | GLXFBConfig fbc = fbconfigs[i]; |
| 249 | |
| 250 | // get VisualID from GLXFBConfig |
| 251 | xvi = j2d_glXGetVisualFromFBConfig(awt_display, fbc); |
| 252 | if (xvi == NULL) { |
| 253 | continue; |
| 254 | } |
| 255 | fbvisualid = xvi->visualid; |
| 256 | XFree(xvi); |
| 257 | |
| 258 | if (visualid == 0 || visualid == fbvisualid) { |
| 259 | int dtype, rtype, depth, stencil, db, alpha, gamma; |
| 260 | |
| 261 | // get GLX-specific attributes from GLXFBConfig |
| 262 | j2d_glXGetFBConfigAttrib(awt_display, fbc, |
| 263 | GLX_DRAWABLE_TYPE, &dtype); |
| 264 | j2d_glXGetFBConfigAttrib(awt_display, fbc, |
| 265 | GLX_RENDER_TYPE, &rtype); |
| 266 | j2d_glXGetFBConfigAttrib(awt_display, fbc, |
| 267 | GLX_DEPTH_SIZE, &depth); |
| 268 | j2d_glXGetFBConfigAttrib(awt_display, fbc, |
| 269 | GLX_STENCIL_SIZE, &stencil); |
| 270 | |
| 271 | // these attributes don't affect our decision, but they are |
| 272 | // interesting for trace logs, so we will query them anyway |
| 273 | j2d_glXGetFBConfigAttrib(awt_display, fbc, |
| 274 | GLX_DOUBLEBUFFER, &db); |
| 275 | j2d_glXGetFBConfigAttrib(awt_display, fbc, |
| 276 | GLX_ALPHA_SIZE, &alpha); |
| 277 | |
| 278 | J2dRlsTrace5(J2D_TRACE_VERBOSE, |
| 279 | "[V] id=0x%x db=%d alpha=%d depth=%d stencil=%d valid=", |
| 280 | fbvisualid, db, alpha, depth, stencil); |
| 281 | |
| 282 | #ifdef __sparc |
| 283 | /* |
| 284 | * Sun's OpenGL implementation will always |
| 285 | * return at least two GLXFBConfigs (visuals) from |
| 286 | * glXChooseFBConfig(). The first will be a linear (gamma |
| 287 | * corrected) visual; the second will have the same capabilities |
| 288 | * as the first, except it will be a non-linear (non-gamma |
| 289 | * corrected) visual, which is the one we want, otherwise |
| 290 | * everything will look "washed out". So we will reject any |
| 291 | * visuals that have gamma values other than 1.0 (the value |
| 292 | * returned by glXGetFBConfigAttrib() will be scaled |
| 293 | * by 100, so 100 corresponds to a gamma value of 1.0, 220 |
| 294 | * corresponds to 2.2, and so on). |
| 295 | */ |
| 296 | j2d_glXGetFBConfigAttrib(awt_display, fbc, |
| 297 | GLX_GAMMA_VALUE_SUN, &gamma); |
| 298 | if (gamma != 100) { |
| 299 | J2dRlsTrace(J2D_TRACE_VERBOSE, "false (linear visual)\n"); |
| 300 | continue; |
| 301 | } |
| 302 | #endif /* __sparc */ |
| 303 | |
| 304 | if ((dtype & GLX_WINDOW_BIT) && |
| 305 | (dtype & GLX_PBUFFER_BIT) && |
| 306 | (rtype & GLX_RGBA_BIT) && |
| 307 | (depth >= 16)) |
| 308 | { |
| 309 | if (visualid == 0) { |
| 310 | // when visualid == 0, we loop through all configs |
| 311 | // looking for an fbconfig that has the smallest combined |
| 312 | // depth+stencil size (this keeps VRAM usage to a minimum) |
| 313 | if ((depth + stencil) < minDepthPlusStencil) { |
| 314 | J2dRlsTrace(J2D_TRACE_VERBOSE, "true\n"); |
| 315 | minDepthPlusStencil = depth + stencil; |
| 316 | chosenConfig = fbc; |
| 317 | } else { |
| 318 | J2dRlsTrace(J2D_TRACE_VERBOSE, |
| 319 | "false (large depth)\n"); |
| 320 | } |
| 321 | continue; |
| 322 | } else { |
| 323 | // in this case, visualid == fbvisualid, which means |
| 324 | // we've found a valid fbconfig corresponding to the |
| 325 | // requested VisualID, so break out of the loop |
| 326 | J2dRlsTrace(J2D_TRACE_VERBOSE, "true\n"); |
| 327 | chosenConfig = fbc; |
| 328 | break; |
| 329 | } |
| 330 | } else { |
| 331 | J2dRlsTrace(J2D_TRACE_VERBOSE, "false (bad match)\n"); |
| 332 | } |
| 333 | } |
| 334 | } |
| 335 | |
| 336 | // free the list of fbconfigs |
| 337 | XFree(fbconfigs); |
| 338 | |
| 339 | if (chosenConfig == 0) { |
| 340 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 341 | "GLXGC_InitFBConfig: could not find an appropriate fbconfig"); |
| 342 | return 0; |
| 343 | } |
| 344 | |
| 345 | return chosenConfig; |
| 346 | } |
| 347 | |
| 348 | /** |
| 349 | * Returns the X11 VisualID that corresponds to the best GLXFBConfig for the |
| 350 | * given screen. If no valid visual could be found, this method returns zero. |
| 351 | * Note that this method will attempt to initialize GLX (and all the |
| 352 | * necessary function symbols) if it has not been already. The AWT_LOCK |
| 353 | * must be acquired before calling this method. |
| 354 | */ |
| 355 | VisualID |
| 356 | GLXGC_FindBestVisual(JNIEnv *env, jint screen) |
| 357 | { |
| 358 | GLXFBConfig fbc; |
| 359 | XVisualInfo *xvi; |
| 360 | VisualID visualid; |
| 361 | |
| 362 | J2dRlsTraceLn1(J2D_TRACE_INFO, "GLXGC_FindBestVisual: scn=%d", screen); |
| 363 | |
| 364 | if (!GLXGC_IsGLXAvailable()) { |
| 365 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 366 | "GLXGC_FindBestVisual: could not initialize GLX"); |
| 367 | return 0; |
| 368 | } |
| 369 | |
| 370 | fbc = GLXGC_InitFBConfig(env, screen, 0); |
| 371 | if (fbc == 0) { |
| 372 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 373 | "GLXGC_FindBestVisual: could not find best visual"); |
| 374 | return 0; |
| 375 | } |
| 376 | |
| 377 | xvi = j2d_glXGetVisualFromFBConfig(awt_display, fbc); |
| 378 | if (xvi == NULL) { |
| 379 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 380 | "GLXGC_FindBestVisual: could not get visual for fbconfig"); |
| 381 | return 0; |
| 382 | } |
| 383 | |
| 384 | visualid = xvi->visualid; |
| 385 | XFree(xvi); |
| 386 | |
| 387 | J2dRlsTraceLn2(J2D_TRACE_INFO, |
| 388 | "GLXGC_FindBestVisual: chose 0x%x as the best visual for screen %d", |
| 389 | visualid, screen); |
| 390 | |
| 391 | return visualid; |
| 392 | } |
| 393 | |
| 394 | /** |
| 395 | * Creates a scratch pbuffer, which can be used to make a context current |
| 396 | * for extension queries, etc. |
| 397 | */ |
| 398 | static GLXPbuffer |
| 399 | GLXGC_InitScratchPbuffer(GLXFBConfig fbconfig) |
| 400 | { |
| 401 | int pbattrlist[] = {GLX_PBUFFER_WIDTH, 1, |
| 402 | GLX_PBUFFER_HEIGHT, 1, |
| 403 | GLX_PRESERVED_CONTENTS, GL_FALSE, |
| 404 | 0}; |
| 405 | |
| 406 | J2dTraceLn(J2D_TRACE_INFO, "GLXGC_InitScratchPbuffer"); |
| 407 | |
| 408 | return j2d_glXCreatePbuffer(awt_display, fbconfig, pbattrlist); |
| 409 | } |
| 410 | |
| 411 | /** |
| 412 | * Initializes a new OGLContext, which includes the native GLXContext handle |
| 413 | * and some other important information such as the associated GLXFBConfig. |
| 414 | */ |
| 415 | static OGLContext * |
| 416 | GLXGC_InitOGLContext(GLXFBConfig fbconfig, GLXContext context, |
| 417 | GLXPbuffer scratch, jint caps) |
| 418 | { |
| 419 | OGLContext *oglc; |
| 420 | GLXCtxInfo *ctxinfo; |
| 421 | |
| 422 | J2dTraceLn(J2D_TRACE_INFO, "GLXGC_InitOGLContext"); |
| 423 | |
| 424 | oglc = (OGLContext *)malloc(sizeof(OGLContext)); |
| 425 | if (oglc == NULL) { |
| 426 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 427 | "GLXGC_InitOGLContext: could not allocate memory for oglc"); |
| 428 | return NULL; |
| 429 | } |
| 430 | |
| 431 | memset(oglc, 0, sizeof(OGLContext)); |
| 432 | |
| 433 | ctxinfo = (GLXCtxInfo *)malloc(sizeof(GLXCtxInfo)); |
| 434 | if (ctxinfo == NULL) { |
| 435 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 436 | "GLXGC_InitOGLContext: could not allocate memory for ctxinfo"); |
| 437 | free(oglc); |
| 438 | return NULL; |
| 439 | } |
| 440 | |
| 441 | ctxinfo->fbconfig = fbconfig; |
| 442 | ctxinfo->context = context; |
| 443 | ctxinfo->scratchSurface = scratch; |
| 444 | oglc->ctxInfo = ctxinfo; |
| 445 | oglc->caps = caps; |
| 446 | |
| 447 | return oglc; |
| 448 | } |
| 449 | |
| 450 | #endif /* !HEADLESS */ |
| 451 | |
| 452 | /** |
| 453 | * Determines whether the GLX pipeline can be used for a given GraphicsConfig |
| 454 | * provided its screen number and visual ID. If the minimum requirements are |
| 455 | * met, the native GLXGraphicsConfigInfo structure is initialized for this |
| 456 | * GraphicsConfig with the necessary information (GLXFBConfig, etc.) |
| 457 | * and a pointer to this structure is returned as a jlong. If |
| 458 | * initialization fails at any point, zero is returned, indicating that GLX |
| 459 | * cannot be used for this GraphicsConfig (we should fallback on the existing |
| 460 | * X11 pipeline). |
| 461 | */ |
| 462 | JNIEXPORT jlong JNICALL |
| 463 | Java_sun_java2d_opengl_GLXGraphicsConfig_getGLXConfigInfo(JNIEnv *env, |
| 464 | jclass glxgc, |
| 465 | jint screennum, |
| 466 | jint visnum) |
| 467 | { |
| 468 | #ifndef HEADLESS |
| 469 | OGLContext *oglc; |
| 470 | GLXFBConfig fbconfig; |
| 471 | GLXContext context; |
| 472 | GLXPbuffer scratch; |
| 473 | GLXGraphicsConfigInfo *glxinfo; |
| 474 | jint caps = sun_java2d_opengl_OGLContext_CAPS_EMPTY; |
| 475 | int db, alpha; |
| 476 | const unsigned char *versionstr; |
| 477 | |
| 478 | J2dRlsTraceLn(J2D_TRACE_INFO, "GLXGraphicsConfig_getGLXConfigInfo"); |
| 479 | |
| 480 | if (usingXinerama) { |
| 481 | // when Xinerama is enabled, the screen ID needs to be 0 |
| 482 | screennum = 0; |
| 483 | } |
| 484 | |
| 485 | fbconfig = GLXGC_InitFBConfig(env, screennum, (VisualID)visnum); |
| 486 | if (fbconfig == 0) { |
| 487 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 488 | "GLXGraphicsConfig_getGLXConfigInfo: could not create fbconfig"); |
| 489 | return 0L; |
| 490 | } |
| 491 | |
| 492 | if (sharedContext == 0) { |
| 493 | // create the one shared context |
| 494 | sharedContext = j2d_glXCreateNewContext(awt_display, fbconfig, |
| 495 | GLX_RGBA_TYPE, 0, GL_TRUE); |
| 496 | if (sharedContext == 0) { |
| 497 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 498 | "GLXGraphicsConfig_getGLXConfigInfo: could not create shared context"); |
| 499 | return 0L; |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | // create the GLXContext for this GLXGraphicsConfig |
| 504 | context = j2d_glXCreateNewContext(awt_display, fbconfig, |
| 505 | GLX_RGBA_TYPE, sharedContext, |
| 506 | GL_TRUE); |
| 507 | if (context == 0) { |
| 508 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 509 | "GLXGraphicsConfig_getGLXConfigInfo: could not create GLX context"); |
| 510 | return 0L; |
| 511 | } |
| 512 | |
| 513 | // this is pretty sketchy, but it seems to be the easiest way to create |
| 514 | // some form of GLXDrawable using only the display and a GLXFBConfig |
| 515 | // (in order to make the context current for checking the version, |
| 516 | // extensions, etc)... |
| 517 | scratch = GLXGC_InitScratchPbuffer(fbconfig); |
| 518 | if (scratch == 0) { |
| 519 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 520 | "GLXGraphicsConfig_getGLXConfigInfo: could not create scratch pbuffer"); |
| 521 | j2d_glXDestroyContext(awt_display, context); |
| 522 | return 0L; |
| 523 | } |
| 524 | |
| 525 | // the context must be made current before we can query the |
| 526 | // version and extension strings |
| 527 | j2d_glXMakeContextCurrent(awt_display, scratch, scratch, context); |
| 528 | |
| 529 | #ifdef __sparc |
| 530 | /* |
| 531 | * 6438225: The software rasterizer used by Sun's OpenGL libraries |
| 532 | * for certain boards has quality issues, and besides, performance |
| 533 | * of these boards is not high enough to justify the use of the |
| 534 | * OpenGL-based Java 2D pipeline. If we detect one of the following |
| 535 | * boards via the GL_RENDERER string, just give up: |
| 536 | * - FFB[2[+]] ("Creator[3D]") |
| 537 | * - PGX-series ("m64") |
| 538 | * - AFB ("Elite3D") |
| 539 | */ |
| 540 | { |
| 541 | const char *renderer = (const char *)j2d_glGetString(GL_RENDERER); |
| 542 | |
| 543 | J2dRlsTraceLn1(J2D_TRACE_VERBOSE, |
| 544 | "GLXGraphicsConfig_getGLXConfigInfo: detected renderer (%s)", |
| 545 | (renderer == NULL) ? "null" : renderer); |
| 546 | |
| 547 | if (renderer == NULL || |
| 548 | strncmp(renderer, "Creator", 7) == 0 || |
| 549 | strncmp(renderer, "SUNWm64", 7) == 0 || |
| 550 | strncmp(renderer, "Elite", 5) == 0) |
| 551 | { |
| 552 | J2dRlsTraceLn1(J2D_TRACE_ERROR, |
| 553 | "GLXGraphicsConfig_getGLXConfigInfo: unsupported board (%s)", |
| 554 | (renderer == NULL) ? "null" : renderer); |
| 555 | j2d_glXMakeContextCurrent(awt_display, None, None, NULL); |
| 556 | j2d_glXDestroyPbuffer(awt_display, scratch); |
| 557 | j2d_glXDestroyContext(awt_display, context); |
| 558 | return 0L; |
| 559 | } |
| 560 | } |
| 561 | #endif /* __sparc */ |
| 562 | |
| 563 | versionstr = j2d_glGetString(GL_VERSION); |
| 564 | OGLContext_GetExtensionInfo(env, &caps); |
| 565 | |
| 566 | // destroy the temporary resources |
| 567 | j2d_glXMakeContextCurrent(awt_display, None, None, NULL); |
| 568 | |
| 569 | J2dRlsTraceLn1(J2D_TRACE_INFO, |
| 570 | "GLXGraphicsConfig_getGLXConfigInfo: OpenGL version=%s", |
| 571 | (versionstr == NULL) ? "null" : (char *)versionstr); |
| 572 | |
| 573 | if (!OGLContext_IsVersionSupported(versionstr)) { |
| 574 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 575 | "GLXGraphicsConfig_getGLXConfigInfo: OpenGL 1.2 is required"); |
| 576 | j2d_glXDestroyPbuffer(awt_display, scratch); |
| 577 | j2d_glXDestroyContext(awt_display, context); |
| 578 | return 0L; |
| 579 | } |
| 580 | |
| 581 | // get config-specific capabilities |
| 582 | j2d_glXGetFBConfigAttrib(awt_display, fbconfig, GLX_DOUBLEBUFFER, &db); |
| 583 | if (db) { |
| 584 | caps |= sun_java2d_opengl_OGLContext_CAPS_DOUBLEBUFFERED; |
| 585 | } |
| 586 | j2d_glXGetFBConfigAttrib(awt_display, fbconfig, GLX_ALPHA_SIZE, &alpha); |
| 587 | if (alpha > 0) { |
| 588 | caps |= sun_java2d_opengl_OGLContext_CAPS_STORED_ALPHA; |
| 589 | } |
| 590 | |
| 591 | // initialize the OGLContext, which wraps the GLXFBConfig and GLXContext |
| 592 | oglc = GLXGC_InitOGLContext(fbconfig, context, scratch, caps); |
| 593 | if (oglc == NULL) { |
| 594 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 595 | "GLXGraphicsConfig_getGLXConfigInfo: could not create oglc"); |
| 596 | j2d_glXDestroyPbuffer(awt_display, scratch); |
| 597 | j2d_glXDestroyContext(awt_display, context); |
| 598 | return 0L; |
| 599 | } |
| 600 | |
| 601 | J2dTraceLn(J2D_TRACE_VERBOSE, |
| 602 | "GLXGraphicsConfig_getGLXConfigInfo: finished checking dependencies"); |
| 603 | |
| 604 | // create the GLXGraphicsConfigInfo record for this config |
| 605 | glxinfo = (GLXGraphicsConfigInfo *)malloc(sizeof(GLXGraphicsConfigInfo)); |
| 606 | if (glxinfo == NULL) { |
| 607 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 608 | "GLXGraphicsConfig_getGLXConfigInfo: could not allocate memory for glxinfo"); |
| 609 | GLXGC_DestroyOGLContext(oglc); |
| 610 | return 0L; |
| 611 | } |
| 612 | |
| 613 | glxinfo->screen = screennum; |
| 614 | glxinfo->visual = visnum; |
| 615 | glxinfo->context = oglc; |
| 616 | glxinfo->fbconfig = fbconfig; |
| 617 | |
| 618 | return ptr_to_jlong(glxinfo); |
| 619 | #else |
| 620 | return 0L; |
| 621 | #endif /* !HEADLESS */ |
| 622 | } |
| 623 | |
| 624 | JNIEXPORT void JNICALL |
| 625 | Java_sun_java2d_opengl_GLXGraphicsConfig_initConfig(JNIEnv *env, |
| 626 | jobject glxgc, |
| 627 | jlong aData, |
| 628 | jlong configInfo) |
| 629 | { |
| 630 | #ifndef HEADLESS |
| 631 | GLXGraphicsConfigInfo *glxinfo; |
| 632 | AwtGraphicsConfigDataPtr configData = |
| 633 | (AwtGraphicsConfigDataPtr)jlong_to_ptr(aData); |
| 634 | |
| 635 | J2dTraceLn(J2D_TRACE_INFO, "GLXGraphicsConfig_initConfig"); |
| 636 | |
| 637 | if (configData == NULL) { |
| 638 | JNU_ThrowNullPointerException(env, "Native GraphicsConfig missing"); |
| 639 | return; |
| 640 | } |
| 641 | |
| 642 | glxinfo = (GLXGraphicsConfigInfo *)jlong_to_ptr(configInfo); |
| 643 | if (glxinfo == NULL) { |
| 644 | JNU_ThrowNullPointerException(env, |
| 645 | "GLXGraphicsConfigInfo data missing"); |
| 646 | return; |
| 647 | } |
| 648 | |
| 649 | configData->glxInfo = glxinfo; |
| 650 | #endif /* !HEADLESS */ |
| 651 | } |
| 652 | |
| 653 | JNIEXPORT jint JNICALL |
| 654 | Java_sun_java2d_opengl_GLXGraphicsConfig_getOGLCapabilities(JNIEnv *env, |
| 655 | jclass glxgc, |
| 656 | jlong configInfo) |
| 657 | { |
| 658 | #ifndef HEADLESS |
| 659 | GLXGraphicsConfigInfo *glxinfo = |
| 660 | (GLXGraphicsConfigInfo *)jlong_to_ptr(configInfo); |
| 661 | |
| 662 | J2dTraceLn(J2D_TRACE_INFO, "GLXGraphicsConfig_getOGLCapabilities"); |
| 663 | |
| 664 | if (glxinfo == NULL || glxinfo->context == NULL) { |
| 665 | return sun_java2d_opengl_OGLContext_CAPS_EMPTY; |
| 666 | } |
| 667 | |
| 668 | return glxinfo->context->caps; |
| 669 | #else |
| 670 | return sun_java2d_opengl_OGLContext_CAPS_EMPTY; |
| 671 | #endif /* !HEADLESS */ |
| 672 | } |