J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004-2007 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 | |
| 28 | #include "sun_java2d_opengl_WGLSurfaceData.h" |
| 29 | |
| 30 | #include "jni.h" |
| 31 | #include "jlong.h" |
| 32 | #include "jni_util.h" |
| 33 | #include "OGLRenderQueue.h" |
| 34 | #include "WGLGraphicsConfig.h" |
| 35 | #include "WGLSurfaceData.h" |
| 36 | |
| 37 | /** |
| 38 | * The methods in this file implement the native windowing system specific |
| 39 | * layer (WGL) for the OpenGL-based Java 2D pipeline. |
| 40 | */ |
| 41 | |
| 42 | extern LockFunc OGLSD_Lock; |
| 43 | extern GetRasInfoFunc OGLSD_GetRasInfo; |
| 44 | extern UnlockFunc OGLSD_Unlock; |
| 45 | extern DisposeFunc OGLSD_Dispose; |
| 46 | |
| 47 | JNIEXPORT void JNICALL |
| 48 | Java_sun_java2d_opengl_WGLSurfaceData_initOps(JNIEnv *env, jobject wglsd, |
| 49 | jlong pConfigInfo, |
| 50 | jlong pPeerData, |
| 51 | jint xoff, jint yoff) |
| 52 | { |
| 53 | OGLSDOps *oglsdo = (OGLSDOps *)SurfaceData_InitOps(env, wglsd, |
| 54 | sizeof(OGLSDOps)); |
| 55 | WGLSDOps *wglsdo = (WGLSDOps *)malloc(sizeof(WGLSDOps)); |
| 56 | |
| 57 | J2dTraceLn(J2D_TRACE_INFO, "WGLSurfaceData_initOps"); |
| 58 | |
| 59 | if (wglsdo == NULL) { |
| 60 | JNU_ThrowOutOfMemoryError(env, "creating native wgl ops"); |
| 61 | return; |
| 62 | } |
| 63 | |
| 64 | oglsdo->privOps = wglsdo; |
| 65 | |
| 66 | oglsdo->sdOps.Lock = OGLSD_Lock; |
| 67 | oglsdo->sdOps.GetRasInfo = OGLSD_GetRasInfo; |
| 68 | oglsdo->sdOps.Unlock = OGLSD_Unlock; |
| 69 | oglsdo->sdOps.Dispose = OGLSD_Dispose; |
| 70 | |
| 71 | oglsdo->drawableType = OGLSD_UNDEFINED; |
| 72 | oglsdo->activeBuffer = GL_FRONT; |
| 73 | oglsdo->needsInit = JNI_TRUE; |
| 74 | oglsdo->xOffset = xoff; |
| 75 | oglsdo->yOffset = yoff; |
| 76 | |
| 77 | wglsdo->peerData = pPeerData; |
| 78 | wglsdo->configInfo = (WGLGraphicsConfigInfo *)jlong_to_ptr(pConfigInfo); |
| 79 | if (wglsdo->configInfo == NULL) { |
| 80 | free(wglsdo); |
| 81 | JNU_ThrowNullPointerException(env, "Config info is null in initOps"); |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * This function disposes of any native windowing system resources associated |
| 87 | * with this surface. For instance, if the given OGLSDOps is of type |
| 88 | * OGLSD_PBUFFER, this method implementation will destroy the actual pbuffer |
| 89 | * surface. |
| 90 | */ |
| 91 | void |
| 92 | OGLSD_DestroyOGLSurface(JNIEnv *env, OGLSDOps *oglsdo) |
| 93 | { |
| 94 | WGLSDOps *wglsdo = (WGLSDOps *)oglsdo->privOps; |
| 95 | |
| 96 | J2dTraceLn(J2D_TRACE_INFO, "OGLSD_DestroyOGLSurface"); |
| 97 | |
| 98 | if (oglsdo->drawableType == OGLSD_PBUFFER) { |
| 99 | if (wglsdo->drawable.pbuffer != 0) { |
| 100 | if (wglsdo->pbufferDC != 0) { |
| 101 | j2d_wglReleasePbufferDCARB(wglsdo->drawable.pbuffer, |
| 102 | wglsdo->pbufferDC); |
| 103 | wglsdo->pbufferDC = 0; |
| 104 | } |
| 105 | j2d_wglDestroyPbufferARB(wglsdo->drawable.pbuffer); |
| 106 | wglsdo->drawable.pbuffer = 0; |
| 107 | } |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Makes the given context current to its associated "scratch" surface. If |
| 113 | * the operation is successful, this method will return JNI_TRUE; otherwise, |
| 114 | * returns JNI_FALSE. |
| 115 | */ |
| 116 | static jboolean |
| 117 | WGLSD_MakeCurrentToScratch(JNIEnv *env, OGLContext *oglc) |
| 118 | { |
| 119 | WGLCtxInfo *ctxInfo; |
| 120 | |
| 121 | J2dTraceLn(J2D_TRACE_INFO, "WGLSD_MakeCurrentToScratch"); |
| 122 | |
| 123 | if (oglc == NULL) { |
| 124 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 125 | "WGLSD_MakeCurrentToScratch: context is null"); |
| 126 | return JNI_FALSE; |
| 127 | } |
| 128 | |
| 129 | ctxInfo = (WGLCtxInfo *)oglc->ctxInfo; |
| 130 | if (!j2d_wglMakeCurrent(ctxInfo->scratchSurfaceDC, ctxInfo->context)) { |
| 131 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 132 | "WGLSD_MakeCurrentToScratch: could not make current"); |
| 133 | return JNI_FALSE; |
| 134 | } |
| 135 | |
| 136 | return JNI_TRUE; |
| 137 | } |
| 138 | |
| 139 | /** |
| 140 | * Returns a pointer (as a jlong) to the native WGLGraphicsConfigInfo |
| 141 | * associated with the given OGLSDOps. This method can be called from |
| 142 | * shared code to retrieve the native GraphicsConfig data in a platform- |
| 143 | * independent manner. |
| 144 | */ |
| 145 | jlong |
| 146 | OGLSD_GetNativeConfigInfo(OGLSDOps *oglsdo) |
| 147 | { |
| 148 | WGLSDOps *wglsdo; |
| 149 | |
| 150 | if (oglsdo == NULL) { |
| 151 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 152 | "OGLSD_GetNativeConfigInfo: ops are null"); |
| 153 | return 0L; |
| 154 | } |
| 155 | |
| 156 | wglsdo = (WGLSDOps *)oglsdo->privOps; |
| 157 | if (wglsdo == NULL) { |
| 158 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 159 | "OGLSD_GetNativeConfigInfo: wgl ops are null"); |
| 160 | return 0L; |
| 161 | } |
| 162 | |
| 163 | return ptr_to_jlong(wglsdo->configInfo); |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Makes the given GraphicsConfig's context current to its associated |
| 168 | * "scratch" surface. If there is a problem making the context current, |
| 169 | * this method will return NULL; otherwise, returns a pointer to the |
| 170 | * OGLContext that is associated with the given GraphicsConfig. |
| 171 | */ |
| 172 | OGLContext * |
| 173 | OGLSD_SetScratchSurface(JNIEnv *env, jlong pConfigInfo) |
| 174 | { |
| 175 | WGLGraphicsConfigInfo *wglInfo = |
| 176 | (WGLGraphicsConfigInfo *)jlong_to_ptr(pConfigInfo); |
| 177 | OGLContext *oglc; |
| 178 | |
| 179 | J2dTraceLn(J2D_TRACE_INFO, "OGLSD_SetScratchContext"); |
| 180 | |
| 181 | if (wglInfo == NULL) { |
| 182 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 183 | "OGLSD_SetScratchContext: wgl config info is null"); |
| 184 | return NULL; |
| 185 | } |
| 186 | |
| 187 | oglc = wglInfo->context; |
| 188 | if (!WGLSD_MakeCurrentToScratch(env, oglc)) { |
| 189 | return NULL; |
| 190 | } |
| 191 | |
| 192 | if (OGLC_IS_CAP_PRESENT(oglc, CAPS_EXT_FBOBJECT)) { |
| 193 | // the GL_EXT_framebuffer_object extension is present, so this call |
| 194 | // will ensure that we are bound to the scratch pbuffer (and not |
| 195 | // some other framebuffer object) |
| 196 | j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); |
| 197 | } |
| 198 | |
| 199 | return oglc; |
| 200 | } |
| 201 | |
| 202 | /** |
| 203 | * Makes a context current to the given source and destination |
| 204 | * surfaces. If there is a problem making the context current, this method |
| 205 | * will return NULL; otherwise, returns a pointer to the OGLContext that is |
| 206 | * associated with the destination surface. |
| 207 | */ |
| 208 | OGLContext * |
| 209 | OGLSD_MakeOGLContextCurrent(JNIEnv *env, OGLSDOps *srcOps, OGLSDOps *dstOps) |
| 210 | { |
| 211 | WGLSDOps *srcWGLOps = (WGLSDOps *)srcOps->privOps; |
| 212 | WGLSDOps *dstWGLOps = (WGLSDOps *)dstOps->privOps; |
| 213 | OGLContext *oglc; |
| 214 | WGLCtxInfo *ctxinfo; |
| 215 | HDC srcHDC, dstHDC; |
| 216 | BOOL success; |
| 217 | |
| 218 | J2dTraceLn(J2D_TRACE_INFO, "OGLSD_MakeOGLContextCurrent"); |
| 219 | |
| 220 | J2dTraceLn4(J2D_TRACE_VERBOSE, " src: %d %p dst: %d %p", |
| 221 | srcOps->drawableType, srcOps, |
| 222 | dstOps->drawableType, dstOps); |
| 223 | |
| 224 | oglc = dstWGLOps->configInfo->context; |
| 225 | if (oglc == NULL) { |
| 226 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 227 | "OGLSD_MakeOGLContextCurrent: context is null"); |
| 228 | return NULL; |
| 229 | } |
| 230 | |
| 231 | if (dstOps->drawableType == OGLSD_FBOBJECT) { |
| 232 | OGLContext *currentContext = OGLRenderQueue_GetCurrentContext(); |
| 233 | |
| 234 | // first make sure we have a current context (if the context isn't |
| 235 | // already current to some drawable, we will make it current to |
| 236 | // its scratch surface) |
| 237 | if (oglc != currentContext) { |
| 238 | if (!WGLSD_MakeCurrentToScratch(env, oglc)) { |
| 239 | return NULL; |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | // now bind to the fbobject associated with the destination surface; |
| 244 | // this means that all rendering will go into the fbobject destination |
| 245 | // (note that we unbind the currently bound texture first; this is |
| 246 | // recommended procedure when binding an fbobject) |
| 247 | j2d_glBindTexture(dstOps->textureTarget, 0); |
| 248 | j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, dstOps->fbobjectID); |
| 249 | |
| 250 | return oglc; |
| 251 | } |
| 252 | |
| 253 | ctxinfo = (WGLCtxInfo *)oglc->ctxInfo; |
| 254 | |
| 255 | // get the hdc for the destination surface |
| 256 | if (dstOps->drawableType == OGLSD_PBUFFER) { |
| 257 | dstHDC = dstWGLOps->pbufferDC; |
| 258 | } else { |
| 259 | dstHDC = GetDC(dstWGLOps->drawable.window); |
| 260 | } |
| 261 | |
| 262 | // get the hdc for the source surface |
| 263 | if (srcOps->drawableType == OGLSD_PBUFFER) { |
| 264 | srcHDC = srcWGLOps->pbufferDC; |
| 265 | } else { |
| 266 | // the source will always be equal to the destination in this case |
| 267 | srcHDC = dstHDC; |
| 268 | } |
| 269 | |
| 270 | // REMIND: in theory we should be able to use wglMakeContextCurrentARB() |
| 271 | // even when the src/dst surfaces are the same, but this causes problems |
| 272 | // on ATI's drivers (see 6525997); for now we will only use it when the |
| 273 | // surfaces are different, otherwise we will use the old |
| 274 | // wglMakeCurrent() approach... |
| 275 | if (srcHDC != dstHDC) { |
| 276 | // use WGL_ARB_make_current_read extension to make context current |
| 277 | success = |
| 278 | j2d_wglMakeContextCurrentARB(dstHDC, srcHDC, ctxinfo->context); |
| 279 | } else { |
| 280 | // use the old approach for making current to the destination |
| 281 | success = j2d_wglMakeCurrent(dstHDC, ctxinfo->context); |
| 282 | } |
| 283 | if (!success) { |
| 284 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 285 | "OGLSD_MakeOGLContextCurrent: could not make current"); |
| 286 | if (dstOps->drawableType != OGLSD_PBUFFER) { |
| 287 | ReleaseDC(dstWGLOps->drawable.window, dstHDC); |
| 288 | } |
| 289 | return NULL; |
| 290 | } |
| 291 | |
| 292 | if (OGLC_IS_CAP_PRESENT(oglc, CAPS_EXT_FBOBJECT)) { |
| 293 | // the GL_EXT_framebuffer_object extension is present, so we |
| 294 | // must bind to the default (windowing system provided) |
| 295 | // framebuffer |
| 296 | j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); |
| 297 | } |
| 298 | |
| 299 | if (dstOps->drawableType != OGLSD_PBUFFER) { |
| 300 | ReleaseDC(dstWGLOps->drawable.window, dstHDC); |
| 301 | } |
| 302 | |
| 303 | return oglc; |
| 304 | } |
| 305 | |
| 306 | /** |
| 307 | * This function initializes a native window surface and caches the window |
| 308 | * bounds in the given OGLSDOps. Returns JNI_TRUE if the operation was |
| 309 | * successful; JNI_FALSE otherwise. |
| 310 | */ |
| 311 | jboolean |
| 312 | OGLSD_InitOGLWindow(JNIEnv *env, OGLSDOps *oglsdo) |
| 313 | { |
| 314 | PIXELFORMATDESCRIPTOR pfd; |
| 315 | WGLSDOps *wglsdo; |
| 316 | WGLGraphicsConfigInfo *wglInfo; |
| 317 | HWND window; |
| 318 | RECT wbounds; |
| 319 | HDC hdc; |
| 320 | |
| 321 | J2dTraceLn(J2D_TRACE_INFO, "OGLSD_InitOGLWindow"); |
| 322 | |
| 323 | if (oglsdo == NULL) { |
| 324 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 325 | "OGLSD_InitOGLWindow: ops are null"); |
| 326 | return JNI_FALSE; |
| 327 | } |
| 328 | |
| 329 | wglsdo = (WGLSDOps *)oglsdo->privOps; |
| 330 | if (wglsdo == NULL) { |
| 331 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 332 | "OGLSD_InitOGLWindow: wgl ops are null"); |
| 333 | return JNI_FALSE; |
| 334 | } |
| 335 | |
| 336 | wglInfo = wglsdo->configInfo; |
| 337 | if (wglInfo == NULL) { |
| 338 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 339 | "OGLSD_InitOGLWindow: graphics config info is null"); |
| 340 | return JNI_FALSE; |
| 341 | } |
| 342 | |
| 343 | window = AwtComponent_GetHWnd(env, wglsdo->peerData); |
| 344 | if (!IsWindow(window)) { |
| 345 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 346 | "OGLSD_InitOGLWindow: disposed component"); |
| 347 | return JNI_FALSE; |
| 348 | } |
| 349 | |
| 350 | GetWindowRect(window, &wbounds); |
| 351 | |
| 352 | hdc = GetDC(window); |
| 353 | if (hdc == 0) { |
| 354 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 355 | "OGLSD_InitOGLWindow: invalid hdc"); |
| 356 | return JNI_FALSE; |
| 357 | } |
| 358 | |
| 359 | if (!SetPixelFormat(hdc, wglInfo->pixfmt, &pfd)) { |
| 360 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 361 | "OGLSD_InitOGLWindow: error setting pixel format"); |
| 362 | ReleaseDC(window, hdc); |
| 363 | return JNI_FALSE; |
| 364 | } |
| 365 | |
| 366 | ReleaseDC(window, hdc); |
| 367 | |
| 368 | oglsdo->drawableType = OGLSD_WINDOW; |
| 369 | oglsdo->isOpaque = JNI_TRUE; |
| 370 | oglsdo->width = wbounds.right - wbounds.left; |
| 371 | oglsdo->height = wbounds.bottom - wbounds.top; |
| 372 | wglsdo->drawable.window = window; |
| 373 | wglsdo->pbufferDC = 0; |
| 374 | |
| 375 | J2dTraceLn2(J2D_TRACE_VERBOSE, " created window: w=%d h=%d", |
| 376 | oglsdo->width, oglsdo->height); |
| 377 | |
| 378 | return JNI_TRUE; |
| 379 | } |
| 380 | |
| 381 | JNIEXPORT jboolean JNICALL |
| 382 | Java_sun_java2d_opengl_WGLSurfaceData_initPbuffer |
| 383 | (JNIEnv *env, jobject wglsd, |
| 384 | jlong pData, jlong pConfigInfo, |
| 385 | jboolean isOpaque, |
| 386 | jint width, jint height) |
| 387 | { |
| 388 | int attrKeys[] = { |
| 389 | WGL_MAX_PBUFFER_WIDTH_ARB, |
| 390 | WGL_MAX_PBUFFER_HEIGHT_ARB, |
| 391 | }; |
| 392 | int attrVals[2]; |
| 393 | int pbAttrList[] = { 0 }; |
| 394 | OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData); |
| 395 | WGLGraphicsConfigInfo *wglInfo = |
| 396 | (WGLGraphicsConfigInfo *)jlong_to_ptr(pConfigInfo); |
| 397 | WGLSDOps *wglsdo; |
| 398 | HWND hwnd; |
| 399 | HDC hdc, pbufferDC; |
| 400 | HPBUFFERARB pbuffer; |
| 401 | int maxWidth, maxHeight; |
| 402 | int actualWidth, actualHeight; |
| 403 | |
| 404 | J2dTraceLn3(J2D_TRACE_INFO, |
| 405 | "WGLSurfaceData_initPbuffer: w=%d h=%d opq=%d", |
| 406 | width, height, isOpaque); |
| 407 | |
| 408 | if (oglsdo == NULL) { |
| 409 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 410 | "WGLSurfaceData_initPbuffer: ops are null"); |
| 411 | return JNI_FALSE; |
| 412 | } |
| 413 | |
| 414 | wglsdo = (WGLSDOps *)oglsdo->privOps; |
| 415 | if (wglsdo == NULL) { |
| 416 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 417 | "WGLSurfaceData_initPbuffer: wgl ops are null"); |
| 418 | return JNI_FALSE; |
| 419 | } |
| 420 | |
| 421 | if (wglInfo == NULL) { |
| 422 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 423 | "WGLSurfaceData_initPbuffer: wgl config info is null"); |
| 424 | return JNI_FALSE; |
| 425 | } |
| 426 | |
| 427 | // create a scratch window |
| 428 | hwnd = WGLGC_CreateScratchWindow(wglInfo->screen); |
| 429 | if (hwnd == 0) { |
| 430 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 431 | "WGLSurfaceData_initPbuffer: could not create scratch window"); |
| 432 | return JNI_FALSE; |
| 433 | } |
| 434 | |
| 435 | // get the HDC for the scratch window |
| 436 | hdc = GetDC(hwnd); |
| 437 | if (hdc == 0) { |
| 438 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 439 | "WGLSurfaceData_initPbuffer: could not get dc for scratch window"); |
| 440 | DestroyWindow(hwnd); |
| 441 | return JNI_FALSE; |
| 442 | } |
| 443 | |
| 444 | // get the maximum allowable pbuffer dimensions |
| 445 | j2d_wglGetPixelFormatAttribivARB(hdc, wglInfo->pixfmt, 0, 2, |
| 446 | attrKeys, attrVals); |
| 447 | maxWidth = attrVals[0]; |
| 448 | maxHeight = attrVals[1]; |
| 449 | |
| 450 | J2dTraceLn4(J2D_TRACE_VERBOSE, |
| 451 | " desired pbuffer dimensions: w=%d h=%d maxw=%d maxh=%d", |
| 452 | width, height, maxWidth, maxHeight); |
| 453 | |
| 454 | // if either dimension is 0 or larger than the maximum, we cannot |
| 455 | // allocate a pbuffer with the requested dimensions |
| 456 | if (width == 0 || width > maxWidth || |
| 457 | height == 0 || height > maxHeight) |
| 458 | { |
| 459 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 460 | "WGLSurfaceData_initPbuffer: invalid dimensions"); |
| 461 | ReleaseDC(hwnd, hdc); |
| 462 | DestroyWindow(hwnd); |
| 463 | return JNI_FALSE; |
| 464 | } |
| 465 | |
| 466 | pbuffer = j2d_wglCreatePbufferARB(hdc, wglInfo->pixfmt, |
| 467 | width, height, pbAttrList); |
| 468 | |
| 469 | ReleaseDC(hwnd, hdc); |
| 470 | DestroyWindow(hwnd); |
| 471 | |
| 472 | if (pbuffer == 0) { |
| 473 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 474 | "WGLSurfaceData_initPbuffer: could not create wgl pbuffer"); |
| 475 | return JNI_FALSE; |
| 476 | } |
| 477 | |
| 478 | // note that we get the DC for the pbuffer at creation time, and then |
| 479 | // release the DC when the pbuffer is disposed; the WGL_ARB_pbuffer |
| 480 | // spec is vague about such things, but from past experience we know |
| 481 | // this approach to be more robust than, for example, doing a |
| 482 | // Get/ReleasePbufferDC() everytime we make a context current |
| 483 | pbufferDC = j2d_wglGetPbufferDCARB(pbuffer); |
| 484 | if (pbufferDC == 0) { |
| 485 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 486 | "WGLSurfaceData_initPbuffer: could not get dc for pbuffer"); |
| 487 | j2d_wglDestroyPbufferARB(pbuffer); |
| 488 | return JNI_FALSE; |
| 489 | } |
| 490 | |
| 491 | // make sure the actual dimensions match those that we requested |
| 492 | j2d_wglQueryPbufferARB(pbuffer, WGL_PBUFFER_WIDTH_ARB, &actualWidth); |
| 493 | j2d_wglQueryPbufferARB(pbuffer, WGL_PBUFFER_HEIGHT_ARB, &actualHeight); |
| 494 | |
| 495 | if (width != actualWidth || height != actualHeight) { |
| 496 | J2dRlsTraceLn2(J2D_TRACE_ERROR, |
| 497 | "WGLSurfaceData_initPbuffer: actual (w=%d h=%d) != requested", |
| 498 | actualWidth, actualHeight); |
| 499 | j2d_wglReleasePbufferDCARB(pbuffer, pbufferDC); |
| 500 | j2d_wglDestroyPbufferARB(pbuffer); |
| 501 | return JNI_FALSE; |
| 502 | } |
| 503 | |
| 504 | oglsdo->drawableType = OGLSD_PBUFFER; |
| 505 | oglsdo->isOpaque = isOpaque; |
| 506 | oglsdo->width = width; |
| 507 | oglsdo->height = height; |
| 508 | wglsdo->drawable.pbuffer = pbuffer; |
| 509 | wglsdo->pbufferDC = pbufferDC; |
| 510 | |
| 511 | return JNI_TRUE; |
| 512 | } |
| 513 | |
| 514 | void |
| 515 | OGLSD_SwapBuffers(JNIEnv *env, jlong pPeerData) |
| 516 | { |
| 517 | HWND window; |
| 518 | HDC hdc; |
| 519 | |
| 520 | J2dTraceLn(J2D_TRACE_INFO, "OGLSD_SwapBuffers"); |
| 521 | |
| 522 | window = AwtComponent_GetHWnd(env, pPeerData); |
| 523 | if (!IsWindow(window)) { |
| 524 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 525 | "OGLSD_SwapBuffers: disposed component"); |
| 526 | return; |
| 527 | } |
| 528 | |
| 529 | hdc = GetDC(window); |
| 530 | if (hdc == 0) { |
| 531 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 532 | "OGLSD_SwapBuffers: invalid hdc"); |
| 533 | return; |
| 534 | } |
| 535 | |
| 536 | if (!SwapBuffers(hdc)) { |
| 537 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 538 | "OGLSD_SwapBuffers: error in SwapBuffers"); |
| 539 | } |
| 540 | |
| 541 | if (!ReleaseDC(window, hdc)) { |
| 542 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 543 | "OGLSD_SwapBuffers: error while releasing dc"); |
| 544 | } |
| 545 | } |