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 | #ifndef HEADLESS |
| 27 | |
| 28 | #include <stdlib.h> |
| 29 | |
| 30 | #include "sun_java2d_opengl_OGLSurfaceData.h" |
| 31 | |
| 32 | #include "jlong.h" |
| 33 | #include "jni_util.h" |
| 34 | #include "OGLSurfaceData.h" |
| 35 | |
| 36 | /** |
| 37 | * The following methods are implemented in the windowing system (i.e. GLX |
| 38 | * and WGL) source files. |
| 39 | */ |
| 40 | extern jlong OGLSD_GetNativeConfigInfo(OGLSDOps *oglsdo); |
| 41 | extern jboolean OGLSD_InitOGLWindow(JNIEnv *env, OGLSDOps *oglsdo); |
| 42 | extern void OGLSD_DestroyOGLSurface(JNIEnv *env, OGLSDOps *oglsdo); |
| 43 | |
| 44 | /** |
| 45 | * This table contains the "pixel formats" for all system memory surfaces |
| 46 | * that OpenGL is capable of handling, indexed by the "PF_" constants defined |
| 47 | * in OGLSurfaceData.java. These pixel formats contain information that is |
| 48 | * passed to OpenGL when copying from a system memory ("Sw") surface to |
| 49 | * an OpenGL "Surface" (via glDrawPixels()) or "Texture" (via glTexImage2D()). |
| 50 | */ |
| 51 | OGLPixelFormat PixelFormats[] = { |
| 52 | { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, |
| 53 | 4, 1, 0, }, /* 0 - IntArgb */ |
| 54 | { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, |
| 55 | 4, 1, 1, }, /* 1 - IntArgbPre */ |
| 56 | { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, |
| 57 | 4, 0, 1, }, /* 2 - IntRgb */ |
| 58 | { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, |
| 59 | 4, 0, 1, }, /* 3 - IntRgbx */ |
| 60 | { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, |
| 61 | 4, 0, 1, }, /* 4 - IntBgr */ |
| 62 | { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, |
| 63 | 4, 0, 1, }, /* 5 - IntBgrx */ |
| 64 | { GL_RGB, GL_UNSIGNED_SHORT_5_6_5, |
| 65 | 2, 0, 1, }, /* 6 - Ushort565Rgb */ |
| 66 | { GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV, |
| 67 | 2, 0, 1, }, /* 7 - Ushort555Rgb */ |
| 68 | { GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, |
| 69 | 2, 0, 1, }, /* 8 - Ushort555Rgbx*/ |
| 70 | { GL_LUMINANCE, GL_UNSIGNED_BYTE, |
| 71 | 1, 0, 1, }, /* 9 - ByteGray */ |
| 72 | { GL_LUMINANCE, GL_UNSIGNED_SHORT, |
| 73 | 2, 0, 1, }, /*10 - UshortGray */ |
| 74 | }; |
| 75 | |
| 76 | /** |
| 77 | * Given a starting value and a maximum limit, returns the first power-of-two |
| 78 | * greater than the starting value. If the resulting value is greater than |
| 79 | * the maximum limit, zero is returned. |
| 80 | */ |
| 81 | jint |
| 82 | OGLSD_NextPowerOfTwo(jint val, jint max) |
| 83 | { |
| 84 | jint i; |
| 85 | |
| 86 | if (val > max) { |
| 87 | return 0; |
| 88 | } |
| 89 | |
| 90 | for (i = 1; i < val; i *= 2); |
| 91 | |
| 92 | return i; |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Returns true if both given dimensions are a power of two. |
| 97 | */ |
| 98 | static jboolean |
| 99 | OGLSD_IsPowerOfTwo(jint width, jint height) |
| 100 | { |
| 101 | return (((width & (width-1)) | (height & (height-1))) == 0); |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Initializes an OpenGL texture object. |
| 106 | * |
| 107 | * If the isOpaque parameter is JNI_FALSE, then the texture will have a |
| 108 | * full alpha channel; otherwise, the texture will be opaque (this can |
| 109 | * help save VRAM when translucency is not needed). |
| 110 | * |
| 111 | * If the GL_ARB_texture_non_power_of_two extension is present (texNonPow2 |
| 112 | * is JNI_TRUE), the actual texture is allowed to have non-power-of-two |
| 113 | * dimensions, and therefore width==textureWidth and height==textureHeight. |
| 114 | * |
| 115 | * Failing that, if the GL_ARB_texture_rectangle extension is present |
| 116 | * (texRect is JNI_TRUE), the actual texture is allowed to have |
| 117 | * non-power-of-two dimensions, except that instead of using the usual |
| 118 | * GL_TEXTURE_2D target, we need to use the GL_TEXTURE_RECTANGLE_ARB target. |
| 119 | * Note that the GL_REPEAT wrapping mode is not allowed with this target, |
| 120 | * so if that mode is needed (e.g. as is the case in the TexturePaint code) |
| 121 | * one should pass JNI_FALSE to avoid using this extension. Also note that |
| 122 | * when the texture target is GL_TEXTURE_RECTANGLE_ARB, texture coordinates |
| 123 | * must be specified in the range [0,width] and [0,height] rather than |
| 124 | * [0,1] as is the case with the usual GL_TEXTURE_2D target (so take care)! |
| 125 | * |
| 126 | * Otherwise, the actual texture must have power-of-two dimensions, and |
| 127 | * therefore the textureWidth and textureHeight will be the next |
| 128 | * power-of-two greater than (or equal to) the requested width and height. |
| 129 | */ |
| 130 | static jboolean |
| 131 | OGLSD_InitTextureObject(OGLSDOps *oglsdo, |
| 132 | jboolean isOpaque, |
| 133 | jboolean texNonPow2, jboolean texRect, |
| 134 | jint width, jint height) |
| 135 | { |
| 136 | GLenum texTarget, texProxyTarget; |
| 137 | GLint format = isOpaque ? GL_RGB : GL_RGBA; |
| 138 | GLuint texID; |
| 139 | GLsizei texWidth, texHeight, realWidth, realHeight; |
| 140 | GLint texMax; |
| 141 | |
| 142 | J2dTraceLn4(J2D_TRACE_INFO, |
| 143 | "OGLSD_InitTextureObject: w=%d h=%d opq=%d nonpow2=%d", |
| 144 | width, height, isOpaque, texNonPow2); |
| 145 | |
| 146 | if (oglsdo == NULL) { |
| 147 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 148 | "OGLSD_InitTextureObject: ops are null"); |
| 149 | return JNI_FALSE; |
| 150 | } |
| 151 | |
| 152 | if (texNonPow2) { |
| 153 | // use non-pow2 dimensions with GL_TEXTURE_2D target |
| 154 | j2d_glGetIntegerv(GL_MAX_TEXTURE_SIZE, &texMax); |
| 155 | texWidth = (width <= texMax) ? width : 0; |
| 156 | texHeight = (height <= texMax) ? height : 0; |
| 157 | texTarget = GL_TEXTURE_2D; |
| 158 | texProxyTarget = GL_PROXY_TEXTURE_2D; |
| 159 | } else if (texRect) { |
| 160 | // use non-pow2 dimensions with GL_TEXTURE_RECTANGLE_ARB target |
| 161 | j2d_glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB, &texMax); |
| 162 | texWidth = (width <= texMax) ? width : 0; |
| 163 | texHeight = (height <= texMax) ? height : 0; |
| 164 | texTarget = GL_TEXTURE_RECTANGLE_ARB; |
| 165 | texProxyTarget = GL_PROXY_TEXTURE_RECTANGLE_ARB; |
| 166 | } else { |
| 167 | // find the appropriate power-of-two dimensions |
| 168 | j2d_glGetIntegerv(GL_MAX_TEXTURE_SIZE, &texMax); |
| 169 | texWidth = OGLSD_NextPowerOfTwo(width, texMax); |
| 170 | texHeight = OGLSD_NextPowerOfTwo(height, texMax); |
| 171 | texTarget = GL_TEXTURE_2D; |
| 172 | texProxyTarget = GL_PROXY_TEXTURE_2D; |
| 173 | } |
| 174 | |
| 175 | J2dTraceLn3(J2D_TRACE_VERBOSE, |
| 176 | " desired texture dimensions: w=%d h=%d max=%d", |
| 177 | texWidth, texHeight, texMax); |
| 178 | |
| 179 | // if either dimension is 0, we cannot allocate a texture with the |
| 180 | // requested dimensions |
| 181 | if ((texWidth == 0) || (texHeight == 0)) { |
| 182 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 183 | "OGLSD_InitTextureObject: texture dimensions too large"); |
| 184 | return JNI_FALSE; |
| 185 | } |
| 186 | |
| 187 | // now use a proxy to determine whether we can create a texture with |
| 188 | // the calculated power-of-two dimensions and the given internal format |
| 189 | j2d_glTexImage2D(texProxyTarget, 0, format, |
| 190 | texWidth, texHeight, 0, |
| 191 | format, GL_UNSIGNED_BYTE, NULL); |
| 192 | j2d_glGetTexLevelParameteriv(texProxyTarget, 0, |
| 193 | GL_TEXTURE_WIDTH, &realWidth); |
| 194 | j2d_glGetTexLevelParameteriv(texProxyTarget, 0, |
| 195 | GL_TEXTURE_HEIGHT, &realHeight); |
| 196 | |
| 197 | // if the requested dimensions and proxy dimensions don't match, |
| 198 | // we shouldn't attempt to create the texture |
| 199 | if ((realWidth != texWidth) || (realHeight != texHeight)) { |
| 200 | J2dRlsTraceLn2(J2D_TRACE_ERROR, |
| 201 | "OGLSD_InitTextureObject: actual (w=%d h=%d) != requested", |
| 202 | realWidth, realHeight); |
| 203 | return JNI_FALSE; |
| 204 | } |
| 205 | |
| 206 | // initialize the texture with some dummy data (this allows us to create |
| 207 | // a texture object once with 2^n dimensions, and then use |
| 208 | // glTexSubImage2D() to provide further updates) |
| 209 | j2d_glGenTextures(1, &texID); |
| 210 | j2d_glBindTexture(texTarget, texID); |
| 211 | j2d_glTexImage2D(texTarget, 0, format, |
| 212 | texWidth, texHeight, 0, |
| 213 | format, GL_UNSIGNED_BYTE, NULL); |
| 214 | |
| 215 | oglsdo->isOpaque = isOpaque; |
| 216 | oglsdo->xOffset = 0; |
| 217 | oglsdo->yOffset = 0; |
| 218 | oglsdo->width = width; |
| 219 | oglsdo->height = height; |
| 220 | oglsdo->textureID = texID; |
| 221 | oglsdo->textureWidth = texWidth; |
| 222 | oglsdo->textureHeight = texHeight; |
| 223 | oglsdo->textureTarget = texTarget; |
| 224 | OGLSD_INIT_TEXTURE_FILTER(oglsdo, GL_NEAREST); |
| 225 | OGLSD_RESET_TEXTURE_WRAP(texTarget); |
| 226 | |
| 227 | J2dTraceLn3(J2D_TRACE_VERBOSE, " created texture: w=%d h=%d id=%d", |
| 228 | width, height, texID); |
| 229 | |
| 230 | return JNI_TRUE; |
| 231 | } |
| 232 | |
| 233 | /** |
| 234 | * Initializes an OpenGL texture, using the given width and height as |
| 235 | * a guide. See OGLSD_InitTextureObject() for more information. |
| 236 | */ |
| 237 | JNIEXPORT jboolean JNICALL |
| 238 | Java_sun_java2d_opengl_OGLSurfaceData_initTexture |
| 239 | (JNIEnv *env, jobject oglsd, |
| 240 | jlong pData, jboolean isOpaque, |
| 241 | jboolean texNonPow2, jboolean texRect, |
| 242 | jint width, jint height) |
| 243 | { |
| 244 | OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData); |
| 245 | |
| 246 | J2dTraceLn2(J2D_TRACE_INFO, "OGLSurfaceData_initTexture: w=%d h=%d", |
| 247 | width, height); |
| 248 | |
| 249 | if (oglsdo == NULL) { |
| 250 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 251 | "OGLSurfaceData_initTexture: ops are null"); |
| 252 | return JNI_FALSE; |
| 253 | } |
| 254 | |
| 255 | /* |
| 256 | * We only use the GL_ARB_texture_rectangle extension if it is available |
| 257 | * and the requested bounds are not pow2 (it is probably faster to use |
| 258 | * GL_TEXTURE_2D for pow2 textures, and besides, our TexturePaint |
| 259 | * code relies on GL_REPEAT, which is not allowed for |
| 260 | * GL_TEXTURE_RECTANGLE_ARB targets). |
| 261 | */ |
| 262 | texRect = texRect && !OGLSD_IsPowerOfTwo(width, height); |
| 263 | |
| 264 | if (!OGLSD_InitTextureObject(oglsdo, isOpaque, texNonPow2, texRect, |
| 265 | width, height)) |
| 266 | { |
| 267 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 268 | "OGLSurfaceData_initTexture: could not init texture object"); |
| 269 | return JNI_FALSE; |
| 270 | } |
| 271 | |
| 272 | oglsdo->drawableType = OGLSD_TEXTURE; |
| 273 | // other fields (e.g. width, height) are set in OGLSD_InitTextureObject() |
| 274 | |
| 275 | return JNI_TRUE; |
| 276 | } |
| 277 | |
| 278 | /** |
| 279 | * Initializes a framebuffer object based on the given textureID and its |
| 280 | * width/height. This method will iterate through all possible depth formats |
| 281 | * to find one that is supported by the drivers/hardware. (Since our use of |
| 282 | * the depth buffer is fairly simplistic, we hope to find a depth format that |
| 283 | * uses as little VRAM as possible.) If an appropriate depth buffer is found |
| 284 | * and all attachments are successful (i.e. the framebuffer object is |
| 285 | * "complete"), then this method will return JNI_TRUE and will initialize |
| 286 | * the values of fbobjectID and depthID using the IDs created by this method. |
| 287 | * Otherwise, this method returns JNI_FALSE. Note that the caller is only |
| 288 | * responsible for deleting the allocated fbobject and depth renderbuffer |
| 289 | * resources if this method returned JNI_TRUE. |
| 290 | */ |
| 291 | jboolean |
| 292 | OGLSD_InitFBObject(GLuint *fbobjectID, GLuint *depthID, |
| 293 | GLuint textureID, GLenum textureTarget, |
| 294 | jint textureWidth, jint textureHeight) |
| 295 | { |
| 296 | GLenum depthFormats[] = { |
| 297 | GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT32 |
| 298 | }; |
| 299 | GLuint fboTmpID, depthTmpID; |
| 300 | jboolean foundDepth = JNI_FALSE; |
| 301 | int i; |
| 302 | |
| 303 | J2dTraceLn3(J2D_TRACE_INFO, "OGLSD_InitFBObject: w=%d h=%d texid=%d", |
| 304 | textureWidth, textureHeight, textureID); |
| 305 | |
| 306 | // initialize framebuffer object |
| 307 | j2d_glGenFramebuffersEXT(1, &fboTmpID); |
| 308 | j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboTmpID); |
| 309 | |
| 310 | // attach color texture to framebuffer object |
| 311 | j2d_glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, |
| 312 | GL_COLOR_ATTACHMENT0_EXT, |
| 313 | textureTarget, textureID, 0); |
| 314 | |
| 315 | // attempt to create a depth renderbuffer of a particular format; we |
| 316 | // will start with the smallest size and then work our way up |
| 317 | for (i = 0; i < 3; i++) { |
| 318 | GLenum error, status; |
| 319 | GLenum depthFormat = depthFormats[i]; |
| 320 | int depthSize = 16 + (i * 8); |
| 321 | |
| 322 | // initialize depth renderbuffer |
| 323 | j2d_glGenRenderbuffersEXT(1, &depthTmpID); |
| 324 | j2d_glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, depthTmpID); |
| 325 | j2d_glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, depthFormat, |
| 326 | textureWidth, textureHeight); |
| 327 | |
| 328 | // creation of depth buffer could potentially fail, so check for error |
| 329 | error = j2d_glGetError(); |
| 330 | if (error != GL_NO_ERROR) { |
| 331 | J2dTraceLn2(J2D_TRACE_VERBOSE, |
| 332 | "OGLSD_InitFBObject: could not create depth buffer: depth=%d error=%x", |
| 333 | depthSize, error); |
| 334 | j2d_glDeleteRenderbuffersEXT(1, &depthTmpID); |
| 335 | continue; |
| 336 | } |
| 337 | |
| 338 | // attach depth renderbuffer to framebuffer object |
| 339 | j2d_glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, |
| 340 | GL_DEPTH_ATTACHMENT_EXT, |
| 341 | GL_RENDERBUFFER_EXT, depthTmpID); |
| 342 | |
| 343 | // now check for framebuffer "completeness" |
| 344 | status = j2d_glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); |
| 345 | |
| 346 | if (status == GL_FRAMEBUFFER_COMPLETE_EXT) { |
| 347 | // we found a valid format, so break out of the loop |
| 348 | J2dTraceLn1(J2D_TRACE_VERBOSE, |
| 349 | " framebuffer is complete: depth=%d", depthSize); |
| 350 | foundDepth = JNI_TRUE; |
| 351 | break; |
| 352 | } else { |
| 353 | // this depth format didn't work, so delete and try another format |
| 354 | J2dTraceLn2(J2D_TRACE_VERBOSE, |
| 355 | " framebuffer is incomplete: depth=%d status=%x", |
| 356 | depthSize, status); |
| 357 | j2d_glDeleteRenderbuffersEXT(1, &depthTmpID); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | // unbind the texture and framebuffer objects (they will be bound again |
| 362 | // later as needed) |
| 363 | j2d_glBindTexture(textureTarget, 0); |
| 364 | j2d_glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0); |
| 365 | j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); |
| 366 | |
| 367 | if (!foundDepth) { |
| 368 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 369 | "OGLSD_InitFBObject: could not find valid depth format"); |
| 370 | j2d_glDeleteFramebuffersEXT(1, &fboTmpID); |
| 371 | return JNI_FALSE; |
| 372 | } |
| 373 | |
| 374 | *fbobjectID = fboTmpID; |
| 375 | *depthID = depthTmpID; |
| 376 | |
| 377 | return JNI_TRUE; |
| 378 | } |
| 379 | |
| 380 | /** |
| 381 | * Initializes a framebuffer object, using the given width and height as |
| 382 | * a guide. See OGLSD_InitTextureObject() and OGLSD_InitFBObject() |
| 383 | * for more information. |
| 384 | */ |
| 385 | JNIEXPORT jboolean JNICALL |
| 386 | Java_sun_java2d_opengl_OGLSurfaceData_initFBObject |
| 387 | (JNIEnv *env, jobject oglsd, |
| 388 | jlong pData, jboolean isOpaque, |
| 389 | jboolean texNonPow2, jboolean texRect, |
| 390 | jint width, jint height) |
| 391 | { |
| 392 | OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData); |
| 393 | GLuint fbobjectID, depthID; |
| 394 | |
| 395 | J2dTraceLn2(J2D_TRACE_INFO, |
| 396 | "OGLSurfaceData_initFBObject: w=%d h=%d", |
| 397 | width, height); |
| 398 | |
| 399 | if (oglsdo == NULL) { |
| 400 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 401 | "OGLSurfaceData_initFBObject: ops are null"); |
| 402 | return JNI_FALSE; |
| 403 | } |
| 404 | |
| 405 | // initialize color texture object |
| 406 | if (!OGLSD_InitTextureObject(oglsdo, isOpaque, texNonPow2, texRect, |
| 407 | width, height)) |
| 408 | { |
| 409 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 410 | "OGLSurfaceData_initFBObject: could not init texture object"); |
| 411 | return JNI_FALSE; |
| 412 | } |
| 413 | |
| 414 | // initialize framebuffer object using color texture created above |
| 415 | if (!OGLSD_InitFBObject(&fbobjectID, &depthID, |
| 416 | oglsdo->textureID, oglsdo->textureTarget, |
| 417 | oglsdo->textureWidth, oglsdo->textureHeight)) |
| 418 | { |
| 419 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 420 | "OGLSurfaceData_initFBObject: could not init fbobject"); |
| 421 | j2d_glDeleteTextures(1, &oglsdo->textureID); |
| 422 | return JNI_FALSE; |
| 423 | } |
| 424 | |
| 425 | oglsdo->drawableType = OGLSD_FBOBJECT; |
| 426 | // other fields (e.g. width, height) are set in OGLSD_InitTextureObject() |
| 427 | oglsdo->fbobjectID = fbobjectID; |
| 428 | oglsdo->depthID = depthID; |
| 429 | |
| 430 | // framebuffer objects differ from other OpenGL surfaces in that the |
| 431 | // value passed to glRead/DrawBuffer() must be GL_COLOR_ATTACHMENTn_EXT, |
| 432 | // rather than GL_FRONT (or GL_BACK) |
| 433 | oglsdo->activeBuffer = GL_COLOR_ATTACHMENT0_EXT; |
| 434 | |
| 435 | return JNI_TRUE; |
| 436 | } |
| 437 | |
| 438 | /** |
| 439 | * Initializes a surface in the backbuffer of a given double-buffered |
| 440 | * onscreen window for use in a BufferStrategy.Flip situation. The bounds of |
| 441 | * the backbuffer surface should always be kept in sync with the bounds of |
| 442 | * the underlying native window. |
| 443 | */ |
| 444 | JNIEXPORT jboolean JNICALL |
| 445 | Java_sun_java2d_opengl_OGLSurfaceData_initFlipBackbuffer |
| 446 | (JNIEnv *env, jobject oglsd, |
| 447 | jlong pData) |
| 448 | { |
| 449 | OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData); |
| 450 | |
| 451 | J2dTraceLn(J2D_TRACE_INFO, "OGLSurfaceData_initFlipBackbuffer"); |
| 452 | |
| 453 | if (oglsdo == NULL) { |
| 454 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 455 | "OGLSurfaceData_initFlipBackbuffer: ops are null"); |
| 456 | return JNI_FALSE; |
| 457 | } |
| 458 | |
| 459 | if (oglsdo->drawableType == OGLSD_UNDEFINED) { |
| 460 | if (!OGLSD_InitOGLWindow(env, oglsdo)) { |
| 461 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 462 | "OGLSurfaceData_initFlipBackbuffer: could not init window"); |
| 463 | return JNI_FALSE; |
| 464 | } |
| 465 | } |
| 466 | |
| 467 | if (oglsdo->drawableType != OGLSD_WINDOW) { |
| 468 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 469 | "OGLSurfaceData_initFlipBackbuffer: drawable is not a window"); |
| 470 | return JNI_FALSE; |
| 471 | } |
| 472 | |
| 473 | oglsdo->drawableType = OGLSD_FLIP_BACKBUFFER; |
| 474 | // x/yOffset have already been set in OGLSD_InitOGLWindow()... |
| 475 | // REMIND: for some reason, flipping won't work properly on IFB unless we |
| 476 | // explicitly use BACK_LEFT rather than BACK... |
| 477 | oglsdo->activeBuffer = GL_BACK_LEFT; |
| 478 | |
| 479 | return JNI_TRUE; |
| 480 | } |
| 481 | |
| 482 | JNIEXPORT jint JNICALL |
| 483 | Java_sun_java2d_opengl_OGLSurfaceData_getTextureTarget |
| 484 | (JNIEnv *env, jobject oglsd, |
| 485 | jlong pData) |
| 486 | { |
| 487 | OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData); |
| 488 | |
| 489 | J2dTraceLn(J2D_TRACE_INFO, "OGLSurfaceData_getTextureTarget"); |
| 490 | |
| 491 | if (oglsdo == NULL) { |
| 492 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 493 | "OGLSurfaceData_getTextureTarget: ops are null"); |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | return (jint)oglsdo->textureTarget; |
| 498 | } |
| 499 | |
| 500 | /** |
| 501 | * Disposes of all native resources associated with this surface. |
| 502 | */ |
| 503 | void |
| 504 | OGLSD_Flush(JNIEnv *env, OGLSDOps *oglsdo) |
| 505 | { |
| 506 | J2dTraceLn1(J2D_TRACE_INFO, "OGLSD_Flush: type=%d", |
| 507 | oglsdo->drawableType); |
| 508 | |
| 509 | if (oglsdo->drawableType == OGLSD_TEXTURE) { |
| 510 | if (oglsdo->textureID != 0) { |
| 511 | j2d_glDeleteTextures(1, &oglsdo->textureID); |
| 512 | oglsdo->textureID = 0; |
| 513 | } |
| 514 | } else if (oglsdo->drawableType == OGLSD_FBOBJECT) { |
| 515 | if (oglsdo->textureID != 0) { |
| 516 | j2d_glDeleteTextures(1, &oglsdo->textureID); |
| 517 | oglsdo->textureID = 0; |
| 518 | } |
| 519 | if (oglsdo->depthID != 0) { |
| 520 | j2d_glDeleteRenderbuffersEXT(1, &oglsdo->depthID); |
| 521 | oglsdo->depthID = 0; |
| 522 | } |
| 523 | if (oglsdo->fbobjectID != 0) { |
| 524 | j2d_glDeleteFramebuffersEXT(1, &oglsdo->fbobjectID); |
| 525 | oglsdo->fbobjectID = 0; |
| 526 | } |
| 527 | } else { |
| 528 | // dispose windowing system resources (pbuffer, pixmap, etc) |
| 529 | OGLSD_DestroyOGLSurface(env, oglsdo); |
| 530 | } |
| 531 | } |
| 532 | |
| 533 | /** |
| 534 | * This is the implementation of the general DisposeFunc defined in |
| 535 | * SurfaceData.h and used by the Disposer mechanism. It first flushes all |
| 536 | * native OpenGL resources and then frees any memory allocated within the |
| 537 | * native OGLSDOps structure. |
| 538 | */ |
| 539 | void |
| 540 | OGLSD_Dispose(JNIEnv *env, SurfaceDataOps *ops) |
| 541 | { |
| 542 | OGLSDOps *oglsdo = (OGLSDOps *)ops; |
| 543 | jlong pConfigInfo = OGLSD_GetNativeConfigInfo(oglsdo); |
| 544 | |
| 545 | JNU_CallStaticMethodByName(env, NULL, "sun/java2d/opengl/OGLSurfaceData", |
| 546 | "dispose", "(JJ)V", |
| 547 | ptr_to_jlong(ops), pConfigInfo); |
| 548 | } |
| 549 | |
| 550 | /** |
| 551 | * This is the implementation of the general surface LockFunc defined in |
| 552 | * SurfaceData.h. |
| 553 | */ |
| 554 | jint |
| 555 | OGLSD_Lock(JNIEnv *env, |
| 556 | SurfaceDataOps *ops, |
| 557 | SurfaceDataRasInfo *pRasInfo, |
| 558 | jint lockflags) |
| 559 | { |
| 560 | JNU_ThrowInternalError(env, "OGLSD_Lock not implemented!"); |
| 561 | return SD_FAILURE; |
| 562 | } |
| 563 | |
| 564 | /** |
| 565 | * This is the implementation of the general GetRasInfoFunc defined in |
| 566 | * SurfaceData.h. |
| 567 | */ |
| 568 | void |
| 569 | OGLSD_GetRasInfo(JNIEnv *env, |
| 570 | SurfaceDataOps *ops, |
| 571 | SurfaceDataRasInfo *pRasInfo) |
| 572 | { |
| 573 | JNU_ThrowInternalError(env, "OGLSD_GetRasInfo not implemented!"); |
| 574 | } |
| 575 | |
| 576 | /** |
| 577 | * This is the implementation of the general surface UnlockFunc defined in |
| 578 | * SurfaceData.h. |
| 579 | */ |
| 580 | void |
| 581 | OGLSD_Unlock(JNIEnv *env, |
| 582 | SurfaceDataOps *ops, |
| 583 | SurfaceDataRasInfo *pRasInfo) |
| 584 | { |
| 585 | JNU_ThrowInternalError(env, "OGLSD_Unlock not implemented!"); |
| 586 | } |
| 587 | |
| 588 | #endif /* !HEADLESS */ |