1 /* 2 ** 3 ** Copyright 2007 The Android Open Source Project 4 ** 5 ** Licensed under the Apache License Version 2.0(the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing software 12 ** distributed under the License is distributed on an "AS IS" BASIS 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #include <assert.h> 19 #include <errno.h> 20 #include <stdlib.h> 21 #include <stdio.h> 22 #include <string.h> 23 #include <unistd.h> 24 #include <fcntl.h> 25 #include <sys/ioctl.h> 26 #include <sys/types.h> 27 #include <sys/mman.h> 28 29 #include <cutils/log.h> 30 #include <cutils/atomic.h> 31 32 #include <utils/threads.h> 33 34 #include <EGL/egl.h> 35 #include <EGL/eglext.h> 36 #include <GLES/gl.h> 37 #include <GLES/glext.h> 38 39 #include <pixelflinger/format.h> 40 #include <pixelflinger/pixelflinger.h> 41 42 #include <private/ui/android_natives_priv.h> 43 #include <private/ui/sw_gralloc_handle.h> 44 45 #include <hardware/copybit.h> 46 47 #include "context.h" 48 #include "state.h" 49 #include "texture.h" 50 #include "matrix.h" 51 52 #undef NELEM 53 #define NELEM(x) (sizeof(x)/sizeof(*(x))) 54 55 // ---------------------------------------------------------------------------- 56 namespace android { 57 // ---------------------------------------------------------------------------- 58 59 const unsigned int NUM_DISPLAYS = 1; 60 61 static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER; 62 static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER; 63 static pthread_key_t gEGLErrorKey = -1; 64 #ifndef HAVE_ANDROID_OS 65 namespace gl { 66 pthread_key_t gGLKey = -1; 67 }; // namespace gl 68 #endif 69 70 template<typename T> 71 static T setError(GLint error, T returnValue) { 72 if (ggl_unlikely(gEGLErrorKey == -1)) { 73 pthread_mutex_lock(&gErrorKeyMutex); 74 if (gEGLErrorKey == -1) 75 pthread_key_create(&gEGLErrorKey, NULL); 76 pthread_mutex_unlock(&gErrorKeyMutex); 77 } 78 pthread_setspecific(gEGLErrorKey, (void*)error); 79 return returnValue; 80 } 81 82 static GLint getError() { 83 if (ggl_unlikely(gEGLErrorKey == -1)) 84 return EGL_SUCCESS; 85 GLint error = (GLint)pthread_getspecific(gEGLErrorKey); 86 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS); 87 return error; 88 } 89 90 // ---------------------------------------------------------------------------- 91 92 struct egl_display_t 93 { 94 egl_display_t() : type(0), initialized(0) { } 95 96 static egl_display_t& get_display(EGLDisplay dpy); 97 98 static EGLBoolean is_valid(EGLDisplay dpy) { 99 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE; 100 } 101 102 NativeDisplayType type; 103 volatile int32_t initialized; 104 }; 105 106 static egl_display_t gDisplays[NUM_DISPLAYS]; 107 108 egl_display_t& egl_display_t::get_display(EGLDisplay dpy) { 109 return gDisplays[uintptr_t(dpy)-1U]; 110 } 111 112 struct egl_context_t { 113 enum { 114 IS_CURRENT = 0x00010000, 115 NEVER_CURRENT = 0x00020000 116 }; 117 uint32_t flags; 118 EGLDisplay dpy; 119 EGLConfig config; 120 EGLSurface read; 121 EGLSurface draw; 122 123 static inline egl_context_t* context(EGLContext ctx) { 124 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx); 125 return static_cast<egl_context_t*>(gl->rasterizer.base); 126 } 127 }; 128 129 // ---------------------------------------------------------------------------- 130 131 struct egl_surface_t 132 { 133 enum { 134 PAGE_FLIP = 0x00000001, 135 MAGIC = 0x31415265 136 }; 137 138 uint32_t magic; 139 EGLDisplay dpy; 140 EGLConfig config; 141 EGLContext ctx; 142 143 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat); 144 virtual ~egl_surface_t(); 145 bool isValid() const; 146 virtual bool initCheck() const = 0; 147 148 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 149 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 150 virtual EGLBoolean connect() { return EGL_TRUE; } 151 virtual void disconnect() {} 152 virtual EGLint getWidth() const = 0; 153 virtual EGLint getHeight() const = 0; 154 155 virtual EGLint getHorizontalResolution() const; 156 virtual EGLint getVerticalResolution() const; 157 virtual EGLint getRefreshRate() const; 158 virtual EGLint getSwapBehavior() const; 159 virtual EGLBoolean swapBuffers(); 160 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 161 protected: 162 GGLSurface depth; 163 }; 164 165 egl_surface_t::egl_surface_t(EGLDisplay dpy, 166 EGLConfig config, 167 int32_t depthFormat) 168 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 169 { 170 depth.version = sizeof(GGLSurface); 171 depth.data = 0; 172 depth.format = depthFormat; 173 } 174 egl_surface_t::~egl_surface_t() 175 { 176 magic = 0; 177 free(depth.data); 178 } 179 bool egl_surface_t::isValid() const { 180 LOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this); 181 return magic == MAGIC; 182 } 183 184 EGLBoolean egl_surface_t::swapBuffers() { 185 return EGL_FALSE; 186 } 187 EGLint egl_surface_t::getHorizontalResolution() const { 188 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 189 } 190 EGLint egl_surface_t::getVerticalResolution() const { 191 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 192 } 193 EGLint egl_surface_t::getRefreshRate() const { 194 return (60 * EGL_DISPLAY_SCALING); 195 } 196 EGLint egl_surface_t::getSwapBehavior() const { 197 return EGL_BUFFER_PRESERVED; 198 } 199 EGLBoolean egl_surface_t::setSwapRectangle( 200 EGLint l, EGLint t, EGLint w, EGLint h) 201 { 202 return EGL_FALSE; 203 } 204 205 // ---------------------------------------------------------------------------- 206 207 struct egl_window_surface_v2_t : public egl_surface_t 208 { 209 egl_window_surface_v2_t( 210 EGLDisplay dpy, EGLConfig config, 211 int32_t depthFormat, 212 ANativeWindow* window); 213 214 ~egl_window_surface_v2_t(); 215 216 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails 217 virtual EGLBoolean swapBuffers(); 218 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 219 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 220 virtual EGLBoolean connect(); 221 virtual void disconnect(); 222 virtual EGLint getWidth() const { return width; } 223 virtual EGLint getHeight() const { return height; } 224 virtual EGLint getHorizontalResolution() const; 225 virtual EGLint getVerticalResolution() const; 226 virtual EGLint getRefreshRate() const; 227 virtual EGLint getSwapBehavior() const; 228 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 229 230 private: 231 status_t lock(android_native_buffer_t* buf, int usage, void** vaddr); 232 status_t unlock(android_native_buffer_t* buf); 233 ANativeWindow* nativeWindow; 234 android_native_buffer_t* buffer; 235 android_native_buffer_t* previousBuffer; 236 gralloc_module_t const* module; 237 copybit_device_t* blitengine; 238 int width; 239 int height; 240 void* bits; 241 GGLFormat const* pixelFormatTable; 242 243 struct Rect { 244 inline Rect() { }; 245 inline Rect(int32_t w, int32_t h) 246 : left(0), top(0), right(w), bottom(h) { } 247 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 248 : left(l), top(t), right(r), bottom(b) { } 249 Rect& andSelf(const Rect& r) { 250 left = max(left, r.left); 251 top = max(top, r.top); 252 right = min(right, r.right); 253 bottom = min(bottom, r.bottom); 254 return *this; 255 } 256 bool isEmpty() const { 257 return (left>=right || top>=bottom); 258 } 259 void dump(char const* what) { 260 LOGD("%s { %5d, %5d, w=%5d, h=%5d }", 261 what, left, top, right-left, bottom-top); 262 } 263 264 int32_t left; 265 int32_t top; 266 int32_t right; 267 int32_t bottom; 268 }; 269 270 struct Region { 271 inline Region() : count(0) { } 272 typedef Rect const* const_iterator; 273 const_iterator begin() const { return storage; } 274 const_iterator end() const { return storage+count; } 275 static Region subtract(const Rect& lhs, const Rect& rhs) { 276 Region reg; 277 Rect* storage = reg.storage; 278 if (!lhs.isEmpty()) { 279 if (lhs.top < rhs.top) { // top rect 280 storage->left = lhs.left; 281 storage->top = lhs.top; 282 storage->right = lhs.right; 283 storage->bottom = rhs.top; 284 storage++; 285 } 286 const int32_t top = max(lhs.top, rhs.top); 287 const int32_t bot = min(lhs.bottom, rhs.bottom); 288 if (top < bot) { 289 if (lhs.left < rhs.left) { // left-side rect 290 storage->left = lhs.left; 291 storage->top = top; 292 storage->right = rhs.left; 293 storage->bottom = bot; 294 storage++; 295 } 296 if (lhs.right > rhs.right) { // right-side rect 297 storage->left = rhs.right; 298 storage->top = top; 299 storage->right = lhs.right; 300 storage->bottom = bot; 301 storage++; 302 } 303 } 304 if (lhs.bottom > rhs.bottom) { // bottom rect 305 storage->left = lhs.left; 306 storage->top = rhs.bottom; 307 storage->right = lhs.right; 308 storage->bottom = lhs.bottom; 309 storage++; 310 } 311 reg.count = storage - reg.storage; 312 } 313 return reg; 314 } 315 bool isEmpty() const { 316 return count<=0; 317 } 318 private: 319 Rect storage[4]; 320 ssize_t count; 321 }; 322 323 struct region_iterator : public copybit_region_t { 324 region_iterator(const Region& region) 325 : b(region.begin()), e(region.end()) { 326 this->next = iterate; 327 } 328 private: 329 static int iterate(copybit_region_t const * self, copybit_rect_t* rect) { 330 region_iterator const* me = static_cast<region_iterator const*>(self); 331 if (me->b != me->e) { 332 *reinterpret_cast<Rect*>(rect) = *me->b++; 333 return 1; 334 } 335 return 0; 336 } 337 mutable Region::const_iterator b; 338 Region::const_iterator const e; 339 }; 340 341 void copyBlt( 342 android_native_buffer_t* dst, void* dst_vaddr, 343 android_native_buffer_t* src, void const* src_vaddr, 344 const Region& clip); 345 346 Rect dirtyRegion; 347 Rect oldDirtyRegion; 348 }; 349 350 egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 351 EGLConfig config, 352 int32_t depthFormat, 353 ANativeWindow* window) 354 : egl_surface_t(dpy, config, depthFormat), 355 nativeWindow(window), buffer(0), previousBuffer(0), module(0), 356 blitengine(0), bits(NULL) 357 { 358 hw_module_t const* pModule; 359 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 360 module = reinterpret_cast<gralloc_module_t const*>(pModule); 361 362 if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &pModule) == 0) { 363 copybit_open(pModule, &blitengine); 364 } 365 366 pixelFormatTable = gglGetPixelFormatTable(); 367 368 // keep a reference on the window 369 nativeWindow->common.incRef(&nativeWindow->common); 370 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width); 371 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height); 372 } 373 374 egl_window_surface_v2_t::~egl_window_surface_v2_t() { 375 if (buffer) { 376 buffer->common.decRef(&buffer->common); 377 } 378 if (previousBuffer) { 379 previousBuffer->common.decRef(&previousBuffer->common); 380 } 381 nativeWindow->common.decRef(&nativeWindow->common); 382 if (blitengine) { 383 copybit_close(blitengine); 384 } 385 } 386 387 EGLBoolean egl_window_surface_v2_t::connect() 388 { 389 // we're intending to do software rendering 390 native_window_set_usage(nativeWindow, 391 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); 392 393 // dequeue a buffer 394 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) { 395 return setError(EGL_BAD_ALLOC, EGL_FALSE); 396 } 397 398 // allocate a corresponding depth-buffer 399 width = buffer->width; 400 height = buffer->height; 401 if (depth.format) { 402 depth.width = width; 403 depth.height = height; 404 depth.stride = depth.width; // use the width here 405 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 406 if (depth.data == 0) { 407 return setError(EGL_BAD_ALLOC, EGL_FALSE); 408 } 409 } 410 411 // keep a reference on the buffer 412 buffer->common.incRef(&buffer->common); 413 414 // Lock the buffer 415 nativeWindow->lockBuffer(nativeWindow, buffer); 416 // pin the buffer down 417 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 418 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 419 LOGE("connect() failed to lock buffer %p (%ux%u)", 420 buffer, buffer->width, buffer->height); 421 return setError(EGL_BAD_ACCESS, EGL_FALSE); 422 // FIXME: we should make sure we're not accessing the buffer anymore 423 } 424 return EGL_TRUE; 425 } 426 427 void egl_window_surface_v2_t::disconnect() 428 { 429 if (buffer && bits) { 430 bits = NULL; 431 unlock(buffer); 432 } 433 // enqueue the last frame 434 nativeWindow->queueBuffer(nativeWindow, buffer); 435 if (buffer) { 436 buffer->common.decRef(&buffer->common); 437 buffer = 0; 438 } 439 if (previousBuffer) { 440 previousBuffer->common.decRef(&previousBuffer->common); 441 previousBuffer = 0; 442 } 443 } 444 445 status_t egl_window_surface_v2_t::lock( 446 android_native_buffer_t* buf, int usage, void** vaddr) 447 { 448 int err; 449 if (sw_gralloc_handle_t::validate(buf->handle) < 0) { 450 err = module->lock(module, buf->handle, 451 usage, 0, 0, buf->width, buf->height, vaddr); 452 } else { 453 sw_gralloc_handle_t const* hnd = 454 reinterpret_cast<sw_gralloc_handle_t const*>(buf->handle); 455 *vaddr = (void*)hnd->base; 456 err = NO_ERROR; 457 } 458 return err; 459 } 460 461 status_t egl_window_surface_v2_t::unlock(android_native_buffer_t* buf) 462 { 463 if (!buf) return BAD_VALUE; 464 int err = NO_ERROR; 465 if (sw_gralloc_handle_t::validate(buf->handle) < 0) { 466 err = module->unlock(module, buf->handle); 467 } 468 return err; 469 } 470 471 void egl_window_surface_v2_t::copyBlt( 472 android_native_buffer_t* dst, void* dst_vaddr, 473 android_native_buffer_t* src, void const* src_vaddr, 474 const Region& clip) 475 { 476 // FIXME: use copybit if possible 477 // NOTE: dst and src must be the same format 478 479 status_t err = NO_ERROR; 480 copybit_device_t* const copybit = blitengine; 481 if (copybit) { 482 copybit_image_t simg; 483 simg.w = src->width; 484 simg.h = src->height; 485 simg.format = src->format; 486 simg.handle = const_cast<native_handle_t*>(src->handle); 487 488 copybit_image_t dimg; 489 dimg.w = dst->width; 490 dimg.h = dst->height; 491 dimg.format = dst->format; 492 dimg.handle = const_cast<native_handle_t*>(dst->handle); 493 494 copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0); 495 copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255); 496 copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_DISABLE); 497 region_iterator it(clip); 498 err = copybit->blit(copybit, &dimg, &simg, &it); 499 if (err != NO_ERROR) { 500 LOGE("copybit failed (%s)", strerror(err)); 501 } 502 } 503 504 if (!copybit || err) { 505 Region::const_iterator cur = clip.begin(); 506 Region::const_iterator end = clip.end(); 507 508 const size_t bpp = pixelFormatTable[src->format].size; 509 const size_t dbpr = dst->stride * bpp; 510 const size_t sbpr = src->stride * bpp; 511 512 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 513 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 514 515 while (cur != end) { 516 const Rect& r(*cur++); 517 ssize_t w = r.right - r.left; 518 ssize_t h = r.bottom - r.top; 519 if (w <= 0 || h<=0) continue; 520 size_t size = w * bpp; 521 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 522 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 523 if (dbpr==sbpr && size==sbpr) { 524 size *= h; 525 h = 1; 526 } 527 do { 528 memcpy(d, s, size); 529 d += dbpr; 530 s += sbpr; 531 } while (--h > 0); 532 } 533 } 534 } 535 536 EGLBoolean egl_window_surface_v2_t::swapBuffers() 537 { 538 if (!buffer) { 539 return setError(EGL_BAD_ACCESS, EGL_FALSE); 540 } 541 542 /* 543 * Handle eglSetSwapRectangleANDROID() 544 * We copyback from the front buffer 545 */ 546 if (!dirtyRegion.isEmpty()) { 547 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 548 if (previousBuffer) { 549 const Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 550 if (!copyBack.isEmpty()) { 551 void* prevBits; 552 if (lock(previousBuffer, 553 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 554 // copy from previousBuffer to buffer 555 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 556 unlock(previousBuffer); 557 } 558 } 559 } 560 oldDirtyRegion = dirtyRegion; 561 } 562 563 if (previousBuffer) { 564 previousBuffer->common.decRef(&previousBuffer->common); 565 previousBuffer = 0; 566 } 567 568 unlock(buffer); 569 previousBuffer = buffer; 570 nativeWindow->queueBuffer(nativeWindow, buffer); 571 buffer = 0; 572 573 // dequeue a new buffer 574 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) { 575 576 // TODO: lockBuffer should rather be executed when the very first 577 // direct rendering occurs. 578 nativeWindow->lockBuffer(nativeWindow, buffer); 579 580 // reallocate the depth-buffer if needed 581 if ((width != buffer->width) || (height != buffer->height)) { 582 // TODO: we probably should reset the swap rect here 583 // if the window size has changed 584 width = buffer->width; 585 height = buffer->height; 586 if (depth.data) { 587 free(depth.data); 588 depth.width = width; 589 depth.height = height; 590 depth.stride = buffer->stride; 591 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 592 if (depth.data == 0) { 593 setError(EGL_BAD_ALLOC, EGL_FALSE); 594 return EGL_FALSE; 595 } 596 } 597 } 598 599 // keep a reference on the buffer 600 buffer->common.incRef(&buffer->common); 601 602 // finally pin the buffer down 603 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 604 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 605 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 606 buffer, buffer->width, buffer->height); 607 return setError(EGL_BAD_ACCESS, EGL_FALSE); 608 // FIXME: we should make sure we're not accessing the buffer anymore 609 } 610 } else { 611 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE); 612 } 613 614 return EGL_TRUE; 615 } 616 617 EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 618 EGLint l, EGLint t, EGLint w, EGLint h) 619 { 620 dirtyRegion = Rect(l, t, l+w, t+h); 621 return EGL_TRUE; 622 } 623 624 EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 625 { 626 GGLSurface buffer; 627 buffer.version = sizeof(GGLSurface); 628 buffer.width = this->buffer->width; 629 buffer.height = this->buffer->height; 630 buffer.stride = this->buffer->stride; 631 buffer.data = (GGLubyte*)bits; 632 buffer.format = this->buffer->format; 633 gl->rasterizer.procs.colorBuffer(gl, &buffer); 634 if (depth.data != gl->rasterizer.state.buffers.depth.data) 635 gl->rasterizer.procs.depthBuffer(gl, &depth); 636 637 return EGL_TRUE; 638 } 639 EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 640 { 641 GGLSurface buffer; 642 buffer.version = sizeof(GGLSurface); 643 buffer.width = this->buffer->width; 644 buffer.height = this->buffer->height; 645 buffer.stride = this->buffer->stride; 646 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 647 buffer.format = this->buffer->format; 648 gl->rasterizer.procs.readBuffer(gl, &buffer); 649 return EGL_TRUE; 650 } 651 EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 652 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 653 } 654 EGLint egl_window_surface_v2_t::getVerticalResolution() const { 655 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 656 } 657 EGLint egl_window_surface_v2_t::getRefreshRate() const { 658 return (60 * EGL_DISPLAY_SCALING); // FIXME 659 } 660 EGLint egl_window_surface_v2_t::getSwapBehavior() const 661 { 662 /* 663 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 664 * the content of the swapped buffer. 665 * 666 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 667 * 668 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 669 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 670 * is, everything outside of this area is preserved. 671 * 672 * This implementation of EGL assumes the later case. 673 * 674 */ 675 676 return EGL_BUFFER_DESTROYED; 677 } 678 679 // ---------------------------------------------------------------------------- 680 681 struct egl_pixmap_surface_t : public egl_surface_t 682 { 683 egl_pixmap_surface_t( 684 EGLDisplay dpy, EGLConfig config, 685 int32_t depthFormat, 686 egl_native_pixmap_t const * pixmap); 687 688 virtual ~egl_pixmap_surface_t() { } 689 690 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 691 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 692 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 693 virtual EGLint getWidth() const { return nativePixmap.width; } 694 virtual EGLint getHeight() const { return nativePixmap.height; } 695 private: 696 egl_native_pixmap_t nativePixmap; 697 }; 698 699 egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 700 EGLConfig config, 701 int32_t depthFormat, 702 egl_native_pixmap_t const * pixmap) 703 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 704 { 705 if (depthFormat) { 706 depth.width = pixmap->width; 707 depth.height = pixmap->height; 708 depth.stride = depth.width; // use the width here 709 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 710 if (depth.data == 0) { 711 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 712 } 713 } 714 } 715 EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 716 { 717 GGLSurface buffer; 718 buffer.version = sizeof(GGLSurface); 719 buffer.width = nativePixmap.width; 720 buffer.height = nativePixmap.height; 721 buffer.stride = nativePixmap.stride; 722 buffer.data = nativePixmap.data; 723 buffer.format = nativePixmap.format; 724 725 gl->rasterizer.procs.colorBuffer(gl, &buffer); 726 if (depth.data != gl->rasterizer.state.buffers.depth.data) 727 gl->rasterizer.procs.depthBuffer(gl, &depth); 728 return EGL_TRUE; 729 } 730 EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 731 { 732 GGLSurface buffer; 733 buffer.version = sizeof(GGLSurface); 734 buffer.width = nativePixmap.width; 735 buffer.height = nativePixmap.height; 736 buffer.stride = nativePixmap.stride; 737 buffer.data = nativePixmap.data; 738 buffer.format = nativePixmap.format; 739 gl->rasterizer.procs.readBuffer(gl, &buffer); 740 return EGL_TRUE; 741 } 742 743 // ---------------------------------------------------------------------------- 744 745 struct egl_pbuffer_surface_t : public egl_surface_t 746 { 747 egl_pbuffer_surface_t( 748 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 749 int32_t w, int32_t h, int32_t f); 750 751 virtual ~egl_pbuffer_surface_t(); 752 753 virtual bool initCheck() const { return pbuffer.data != 0; } 754 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 755 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 756 virtual EGLint getWidth() const { return pbuffer.width; } 757 virtual EGLint getHeight() const { return pbuffer.height; } 758 private: 759 GGLSurface pbuffer; 760 }; 761 762 egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 763 EGLConfig config, int32_t depthFormat, 764 int32_t w, int32_t h, int32_t f) 765 : egl_surface_t(dpy, config, depthFormat) 766 { 767 size_t size = w*h; 768 switch (f) { 769 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 770 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 771 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 772 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break; 773 default: 774 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 775 pbuffer.data = 0; 776 break; 777 } 778 pbuffer.version = sizeof(GGLSurface); 779 pbuffer.width = w; 780 pbuffer.height = h; 781 pbuffer.stride = w; 782 pbuffer.data = (GGLubyte*)malloc(size); 783 pbuffer.format = f; 784 785 if (depthFormat) { 786 depth.width = pbuffer.width; 787 depth.height = pbuffer.height; 788 depth.stride = depth.width; // use the width here 789 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 790 if (depth.data == 0) { 791 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 792 return; 793 } 794 } 795 } 796 egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 797 free(pbuffer.data); 798 } 799 EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 800 { 801 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 802 if (depth.data != gl->rasterizer.state.buffers.depth.data) 803 gl->rasterizer.procs.depthBuffer(gl, &depth); 804 return EGL_TRUE; 805 } 806 EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 807 { 808 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 809 return EGL_TRUE; 810 } 811 812 // ---------------------------------------------------------------------------- 813 814 struct config_pair_t { 815 GLint key; 816 GLint value; 817 }; 818 819 struct configs_t { 820 const config_pair_t* array; 821 int size; 822 }; 823 824 struct config_management_t { 825 GLint key; 826 bool (*match)(GLint reqValue, GLint confValue); 827 static bool atLeast(GLint reqValue, GLint confValue) { 828 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 829 } 830 static bool exact(GLint reqValue, GLint confValue) { 831 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 832 } 833 static bool mask(GLint reqValue, GLint confValue) { 834 return (confValue & reqValue) == reqValue; 835 } 836 static bool ignore(GLint reqValue, GLint confValue) { 837 return true; 838 } 839 }; 840 841 // ---------------------------------------------------------------------------- 842 843 #define VERSION_MAJOR 1 844 #define VERSION_MINOR 2 845 static char const * const gVendorString = "Google Inc."; 846 static char const * const gVersionString = "1.2 Android Driver 1.2.0"; 847 static char const * const gClientApiString = "OpenGL ES"; 848 static char const * const gExtensionsString = 849 "EGL_KHR_image_base " 850 // "KHR_image_pixmap " 851 "EGL_ANDROID_image_native_buffer " 852 "EGL_ANDROID_swap_rectangle " 853 ; 854 855 // ---------------------------------------------------------------------------- 856 857 struct extention_map_t { 858 const char * const name; 859 __eglMustCastToProperFunctionPointerType address; 860 }; 861 862 static const extention_map_t gExtentionMap[] = { 863 { "glDrawTexsOES", 864 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 865 { "glDrawTexiOES", 866 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 867 { "glDrawTexfOES", 868 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 869 { "glDrawTexxOES", 870 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 871 { "glDrawTexsvOES", 872 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 873 { "glDrawTexivOES", 874 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 875 { "glDrawTexfvOES", 876 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 877 { "glDrawTexxvOES", 878 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 879 { "glQueryMatrixxOES", 880 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 881 { "glEGLImageTargetTexture2DOES", 882 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 883 { "glEGLImageTargetRenderbufferStorageOES", 884 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 885 { "glClipPlanef", 886 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 887 { "glClipPlanex", 888 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 889 { "glBindBuffer", 890 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 891 { "glBufferData", 892 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 893 { "glBufferSubData", 894 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 895 { "glDeleteBuffers", 896 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 897 { "glGenBuffers", 898 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 899 { "eglCreateImageKHR", 900 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 901 { "eglDestroyImageKHR", 902 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 903 { "eglSetSwapRectangleANDROID", 904 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 905 }; 906 907 /* 908 * In the lists below, attributes names MUST be sorted. 909 * Additionally, all configs must be sorted according to 910 * the EGL specification. 911 */ 912 913 static config_pair_t const config_base_attribute_list[] = { 914 { EGL_STENCIL_SIZE, 0 }, 915 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 916 { EGL_LEVEL, 0 }, 917 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 918 { EGL_MAX_PBUFFER_PIXELS, 919 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 920 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 921 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 922 { EGL_NATIVE_VISUAL_ID, 0 }, 923 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 924 { EGL_SAMPLES, 0 }, 925 { EGL_SAMPLE_BUFFERS, 0 }, 926 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 927 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 928 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 929 { EGL_TRANSPARENT_RED_VALUE, 0 }, 930 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 931 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 932 { EGL_MIN_SWAP_INTERVAL, 1 }, 933 { EGL_MAX_SWAP_INTERVAL, 1 }, 934 { EGL_LUMINANCE_SIZE, 0 }, 935 { EGL_ALPHA_MASK_SIZE, 0 }, 936 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER }, 937 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 938 { EGL_CONFORMANT, 0 } 939 }; 940 941 // These configs can override the base attribute list 942 // NOTE: when adding a config here, don't forget to update eglCreate*Surface() 943 944 // 565 configs 945 static config_pair_t const config_0_attribute_list[] = { 946 { EGL_BUFFER_SIZE, 16 }, 947 { EGL_ALPHA_SIZE, 0 }, 948 { EGL_BLUE_SIZE, 5 }, 949 { EGL_GREEN_SIZE, 6 }, 950 { EGL_RED_SIZE, 5 }, 951 { EGL_DEPTH_SIZE, 0 }, 952 { EGL_CONFIG_ID, 0 }, 953 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 954 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 955 }; 956 957 static config_pair_t const config_1_attribute_list[] = { 958 { EGL_BUFFER_SIZE, 16 }, 959 { EGL_ALPHA_SIZE, 0 }, 960 { EGL_BLUE_SIZE, 5 }, 961 { EGL_GREEN_SIZE, 6 }, 962 { EGL_RED_SIZE, 5 }, 963 { EGL_DEPTH_SIZE, 16 }, 964 { EGL_CONFIG_ID, 1 }, 965 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 966 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 967 }; 968 969 // RGB 888 configs 970 static config_pair_t const config_2_attribute_list[] = { 971 { EGL_BUFFER_SIZE, 32 }, 972 { EGL_ALPHA_SIZE, 0 }, 973 { EGL_BLUE_SIZE, 8 }, 974 { EGL_GREEN_SIZE, 8 }, 975 { EGL_RED_SIZE, 8 }, 976 { EGL_DEPTH_SIZE, 0 }, 977 { EGL_CONFIG_ID, 6 }, 978 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 979 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 980 }; 981 982 static config_pair_t const config_3_attribute_list[] = { 983 { EGL_BUFFER_SIZE, 32 }, 984 { EGL_ALPHA_SIZE, 0 }, 985 { EGL_BLUE_SIZE, 8 }, 986 { EGL_GREEN_SIZE, 8 }, 987 { EGL_RED_SIZE, 8 }, 988 { EGL_DEPTH_SIZE, 16 }, 989 { EGL_CONFIG_ID, 7 }, 990 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 991 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 992 }; 993 994 // 8888 configs 995 static config_pair_t const config_4_attribute_list[] = { 996 { EGL_BUFFER_SIZE, 32 }, 997 { EGL_ALPHA_SIZE, 8 }, 998 { EGL_BLUE_SIZE, 8 }, 999 { EGL_GREEN_SIZE, 8 }, 1000 { EGL_RED_SIZE, 8 }, 1001 { EGL_DEPTH_SIZE, 0 }, 1002 { EGL_CONFIG_ID, 2 }, 1003 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 1004 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1005 }; 1006 1007 static config_pair_t const config_5_attribute_list[] = { 1008 { EGL_BUFFER_SIZE, 32 }, 1009 { EGL_ALPHA_SIZE, 8 }, 1010 { EGL_BLUE_SIZE, 8 }, 1011 { EGL_GREEN_SIZE, 8 }, 1012 { EGL_RED_SIZE, 8 }, 1013 { EGL_DEPTH_SIZE, 16 }, 1014 { EGL_CONFIG_ID, 3 }, 1015 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 1016 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1017 }; 1018 1019 // A8 configs 1020 static config_pair_t const config_6_attribute_list[] = { 1021 { EGL_BUFFER_SIZE, 8 }, 1022 { EGL_ALPHA_SIZE, 8 }, 1023 { EGL_BLUE_SIZE, 0 }, 1024 { EGL_GREEN_SIZE, 0 }, 1025 { EGL_RED_SIZE, 0 }, 1026 { EGL_DEPTH_SIZE, 0 }, 1027 { EGL_CONFIG_ID, 4 }, 1028 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 1029 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1030 }; 1031 1032 static config_pair_t const config_7_attribute_list[] = { 1033 { EGL_BUFFER_SIZE, 8 }, 1034 { EGL_ALPHA_SIZE, 8 }, 1035 { EGL_BLUE_SIZE, 0 }, 1036 { EGL_GREEN_SIZE, 0 }, 1037 { EGL_RED_SIZE, 0 }, 1038 { EGL_DEPTH_SIZE, 16 }, 1039 { EGL_CONFIG_ID, 5 }, 1040 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 1041 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1042 }; 1043 1044 static configs_t const gConfigs[] = { 1045 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 1046 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 1047 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 1048 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 1049 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 1050 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 1051 { config_6_attribute_list, NELEM(config_6_attribute_list) }, 1052 { config_7_attribute_list, NELEM(config_7_attribute_list) }, 1053 }; 1054 1055 static config_management_t const gConfigManagement[] = { 1056 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 1057 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1058 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1059 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1060 { EGL_RED_SIZE, config_management_t::atLeast }, 1061 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1062 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1063 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1064 { EGL_CONFIG_ID, config_management_t::exact }, 1065 { EGL_LEVEL, config_management_t::exact }, 1066 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::ignore }, 1067 { EGL_MAX_PBUFFER_PIXELS, config_management_t::ignore }, 1068 { EGL_MAX_PBUFFER_WIDTH, config_management_t::ignore }, 1069 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1070 { EGL_NATIVE_VISUAL_ID, config_management_t::ignore }, 1071 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1072 { EGL_SAMPLES, config_management_t::exact }, 1073 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1074 { EGL_SURFACE_TYPE, config_management_t::mask }, 1075 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1076 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1077 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1078 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1079 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1080 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1081 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1082 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1083 { EGL_LUMINANCE_SIZE, config_management_t::atLeast }, 1084 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast }, 1085 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact }, 1086 { EGL_RENDERABLE_TYPE, config_management_t::mask }, 1087 { EGL_CONFORMANT, config_management_t::mask } 1088 }; 1089 1090 1091 static config_pair_t const config_defaults[] = { 1092 // attributes that are not specified are simply ignored, if a particular 1093 // one needs not be ignored, it must be specified here, eg: 1094 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1095 }; 1096 1097 // ---------------------------------------------------------------------------- 1098 1099 static status_t getConfigFormatInfo(EGLint configID, 1100 int32_t& pixelFormat, int32_t& depthFormat) 1101 { 1102 switch(configID) { 1103 case 0: 1104 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1105 depthFormat = 0; 1106 break; 1107 case 1: 1108 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1109 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1110 break; 1111 case 2: 1112 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1113 depthFormat = 0; 1114 break; 1115 case 3: 1116 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1117 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1118 break; 1119 case 4: 1120 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1121 depthFormat = 0; 1122 break; 1123 case 5: 1124 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1125 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1126 break; 1127 case 6: 1128 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1129 depthFormat = 0; 1130 break; 1131 case 7: 1132 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1133 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1134 break; 1135 default: 1136 return NAME_NOT_FOUND; 1137 } 1138 return NO_ERROR; 1139 } 1140 1141 // ---------------------------------------------------------------------------- 1142 1143 template<typename T> 1144 static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1145 { 1146 while (first <= last) { 1147 int mid = (first + last) / 2; 1148 if (key > sortedArray[mid].key) { 1149 first = mid + 1; 1150 } else if (key < sortedArray[mid].key) { 1151 last = mid - 1; 1152 } else { 1153 return mid; 1154 } 1155 } 1156 return -1; 1157 } 1158 1159 static int isAttributeMatching(int i, EGLint attr, EGLint val) 1160 { 1161 // look for the attribute in all of our configs 1162 config_pair_t const* configFound = gConfigs[i].array; 1163 int index = binarySearch<config_pair_t>( 1164 gConfigs[i].array, 1165 0, gConfigs[i].size-1, 1166 attr); 1167 if (index < 0) { 1168 configFound = config_base_attribute_list; 1169 index = binarySearch<config_pair_t>( 1170 config_base_attribute_list, 1171 0, NELEM(config_base_attribute_list)-1, 1172 attr); 1173 } 1174 if (index >= 0) { 1175 // attribute found, check if this config could match 1176 int cfgMgtIndex = binarySearch<config_management_t>( 1177 gConfigManagement, 1178 0, NELEM(gConfigManagement)-1, 1179 attr); 1180 if (cfgMgtIndex >= 0) { 1181 bool match = gConfigManagement[cfgMgtIndex].match( 1182 val, configFound[index].value); 1183 if (match) { 1184 // this config matches 1185 return 1; 1186 } 1187 } else { 1188 // attribute not found. this should NEVER happen. 1189 } 1190 } else { 1191 // error, this attribute doesn't exist 1192 } 1193 return 0; 1194 } 1195 1196 static int makeCurrent(ogles_context_t* gl) 1197 { 1198 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1199 if (gl) { 1200 egl_context_t* c = egl_context_t::context(gl); 1201 if (c->flags & egl_context_t::IS_CURRENT) { 1202 if (current != gl) { 1203 // it is an error to set a context current, if it's already 1204 // current to another thread 1205 return -1; 1206 } 1207 } else { 1208 if (current) { 1209 // mark the current context as not current, and flush 1210 glFlush(); 1211 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1212 } 1213 } 1214 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1215 // The context is not current, make it current! 1216 setGlThreadSpecific(gl); 1217 c->flags |= egl_context_t::IS_CURRENT; 1218 } 1219 } else { 1220 if (current) { 1221 // mark the current context as not current, and flush 1222 glFlush(); 1223 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1224 } 1225 // this thread has no context attached to it 1226 setGlThreadSpecific(0); 1227 } 1228 return 0; 1229 } 1230 1231 static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1232 EGLint attribute, EGLint *value) 1233 { 1234 size_t numConfigs = NELEM(gConfigs); 1235 int index = (int)config; 1236 if (uint32_t(index) >= numConfigs) 1237 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1238 1239 int attrIndex; 1240 attrIndex = binarySearch<config_pair_t>( 1241 gConfigs[index].array, 1242 0, gConfigs[index].size-1, 1243 attribute); 1244 if (attrIndex>=0) { 1245 *value = gConfigs[index].array[attrIndex].value; 1246 return EGL_TRUE; 1247 } 1248 1249 attrIndex = binarySearch<config_pair_t>( 1250 config_base_attribute_list, 1251 0, NELEM(config_base_attribute_list)-1, 1252 attribute); 1253 if (attrIndex>=0) { 1254 *value = config_base_attribute_list[attrIndex].value; 1255 return EGL_TRUE; 1256 } 1257 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1258 } 1259 1260 static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1261 NativeWindowType window, const EGLint *attrib_list) 1262 { 1263 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1264 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1265 if (window == 0) 1266 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1267 1268 EGLint surfaceType; 1269 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1270 return EGL_FALSE; 1271 1272 if (!(surfaceType & EGL_WINDOW_BIT)) 1273 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1274 1275 if (static_cast<ANativeWindow*>(window)->common.magic != 1276 ANDROID_NATIVE_WINDOW_MAGIC) { 1277 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1278 } 1279 1280 EGLint configID; 1281 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1282 return EGL_FALSE; 1283 1284 int32_t depthFormat; 1285 int32_t pixelFormat; 1286 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1287 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1288 } 1289 1290 // FIXME: we don't have access to the pixelFormat here just yet. 1291 // (it's possible that the surface is not fully initialized) 1292 // maybe this should be done after the page-flip 1293 //if (EGLint(info.format) != pixelFormat) 1294 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1295 1296 egl_surface_t* surface; 1297 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1298 static_cast<ANativeWindow*>(window)); 1299 1300 if (!surface->initCheck()) { 1301 // there was a problem in the ctor, the error 1302 // flag has been set. 1303 delete surface; 1304 surface = 0; 1305 } 1306 return surface; 1307 } 1308 1309 static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1310 NativePixmapType pixmap, const EGLint *attrib_list) 1311 { 1312 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1313 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1314 if (pixmap == 0) 1315 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1316 1317 EGLint surfaceType; 1318 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1319 return EGL_FALSE; 1320 1321 if (!(surfaceType & EGL_PIXMAP_BIT)) 1322 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1323 1324 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1325 sizeof(egl_native_pixmap_t)) { 1326 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1327 } 1328 1329 EGLint configID; 1330 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1331 return EGL_FALSE; 1332 1333 int32_t depthFormat; 1334 int32_t pixelFormat; 1335 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1336 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1337 } 1338 1339 if (pixmap->format != pixelFormat) 1340 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1341 1342 egl_surface_t* surface = 1343 new egl_pixmap_surface_t(dpy, config, depthFormat, 1344 static_cast<egl_native_pixmap_t*>(pixmap)); 1345 1346 if (!surface->initCheck()) { 1347 // there was a problem in the ctor, the error 1348 // flag has been set. 1349 delete surface; 1350 surface = 0; 1351 } 1352 return surface; 1353 } 1354 1355 static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1356 const EGLint *attrib_list) 1357 { 1358 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1359 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1360 1361 EGLint surfaceType; 1362 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1363 return EGL_FALSE; 1364 1365 if (!(surfaceType & EGL_PBUFFER_BIT)) 1366 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1367 1368 EGLint configID; 1369 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1370 return EGL_FALSE; 1371 1372 int32_t depthFormat; 1373 int32_t pixelFormat; 1374 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1375 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1376 } 1377 1378 int32_t w = 0; 1379 int32_t h = 0; 1380 while (attrib_list[0]) { 1381 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1382 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1383 attrib_list+=2; 1384 } 1385 1386 egl_surface_t* surface = 1387 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1388 1389 if (!surface->initCheck()) { 1390 // there was a problem in the ctor, the error 1391 // flag has been set. 1392 delete surface; 1393 surface = 0; 1394 } 1395 return surface; 1396 } 1397 1398 // ---------------------------------------------------------------------------- 1399 }; // namespace android 1400 // ---------------------------------------------------------------------------- 1401 1402 using namespace android; 1403 1404 // ---------------------------------------------------------------------------- 1405 // Initialization 1406 // ---------------------------------------------------------------------------- 1407 1408 EGLDisplay eglGetDisplay(NativeDisplayType display) 1409 { 1410 #ifndef HAVE_ANDROID_OS 1411 // this just needs to be done once 1412 if (gGLKey == -1) { 1413 pthread_mutex_lock(&gInitMutex); 1414 if (gGLKey == -1) 1415 pthread_key_create(&gGLKey, NULL); 1416 pthread_mutex_unlock(&gInitMutex); 1417 } 1418 #endif 1419 if (display == EGL_DEFAULT_DISPLAY) { 1420 EGLDisplay dpy = (EGLDisplay)1; 1421 egl_display_t& d = egl_display_t::get_display(dpy); 1422 d.type = display; 1423 return dpy; 1424 } 1425 return EGL_NO_DISPLAY; 1426 } 1427 1428 EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1429 { 1430 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1431 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1432 1433 EGLBoolean res = EGL_TRUE; 1434 egl_display_t& d = egl_display_t::get_display(dpy); 1435 1436 if (android_atomic_inc(&d.initialized) == 0) { 1437 // initialize stuff here if needed 1438 //pthread_mutex_lock(&gInitMutex); 1439 //pthread_mutex_unlock(&gInitMutex); 1440 } 1441 1442 if (res == EGL_TRUE) { 1443 if (major != NULL) *major = VERSION_MAJOR; 1444 if (minor != NULL) *minor = VERSION_MINOR; 1445 } 1446 return res; 1447 } 1448 1449 EGLBoolean eglTerminate(EGLDisplay dpy) 1450 { 1451 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1452 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1453 1454 EGLBoolean res = EGL_TRUE; 1455 egl_display_t& d = egl_display_t::get_display(dpy); 1456 if (android_atomic_dec(&d.initialized) == 1) { 1457 // TODO: destroy all resources (surfaces, contexts, etc...) 1458 //pthread_mutex_lock(&gInitMutex); 1459 //pthread_mutex_unlock(&gInitMutex); 1460 } 1461 return res; 1462 } 1463 1464 // ---------------------------------------------------------------------------- 1465 // configuration 1466 // ---------------------------------------------------------------------------- 1467 1468 EGLBoolean eglGetConfigs( EGLDisplay dpy, 1469 EGLConfig *configs, 1470 EGLint config_size, EGLint *num_config) 1471 { 1472 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1473 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1474 1475 GLint numConfigs = NELEM(gConfigs); 1476 if (!configs) { 1477 *num_config = numConfigs; 1478 return EGL_TRUE; 1479 } 1480 GLint i; 1481 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1482 *configs++ = (EGLConfig)i; 1483 } 1484 *num_config = i; 1485 return EGL_TRUE; 1486 } 1487 1488 EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1489 EGLConfig *configs, EGLint config_size, 1490 EGLint *num_config) 1491 { 1492 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1493 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1494 1495 if (ggl_unlikely(num_config==0)) { 1496 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1497 } 1498 1499 if (ggl_unlikely(attrib_list==0)) { 1500 /* 1501 * A NULL attrib_list should be treated as though it was an empty 1502 * one (terminated with EGL_NONE) as defined in 1503 * section 3.4.1 "Querying Configurations" in the EGL specification. 1504 */ 1505 static const EGLint dummy = EGL_NONE; 1506 attrib_list = &dummy; 1507 } 1508 1509 int numAttributes = 0; 1510 int numConfigs = NELEM(gConfigs); 1511 uint32_t possibleMatch = (1<<numConfigs)-1; 1512 while(possibleMatch && *attrib_list != EGL_NONE) { 1513 numAttributes++; 1514 EGLint attr = *attrib_list++; 1515 EGLint val = *attrib_list++; 1516 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1517 if (!(possibleMatch & (1<<i))) 1518 continue; 1519 if (isAttributeMatching(i, attr, val) == 0) { 1520 possibleMatch &= ~(1<<i); 1521 } 1522 } 1523 } 1524 1525 // now, handle the attributes which have a useful default value 1526 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) { 1527 // see if this attribute was specified, if not, apply its 1528 // default value 1529 if (binarySearch<config_pair_t>( 1530 (config_pair_t const*)attrib_list, 1531 0, numAttributes-1, 1532 config_defaults[j].key) < 0) 1533 { 1534 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1535 if (!(possibleMatch & (1<<i))) 1536 continue; 1537 if (isAttributeMatching(i, 1538 config_defaults[j].key, 1539 config_defaults[j].value) == 0) 1540 { 1541 possibleMatch &= ~(1<<i); 1542 } 1543 } 1544 } 1545 } 1546 1547 // return the configurations found 1548 int n=0; 1549 if (possibleMatch) { 1550 if (configs) { 1551 for (int i=0 ; config_size && i<numConfigs ; i++) { 1552 if (possibleMatch & (1<<i)) { 1553 *configs++ = (EGLConfig)i; 1554 config_size--; 1555 n++; 1556 } 1557 } 1558 } else { 1559 for (int i=0 ; i<numConfigs ; i++) { 1560 if (possibleMatch & (1<<i)) { 1561 n++; 1562 } 1563 } 1564 } 1565 } 1566 *num_config = n; 1567 return EGL_TRUE; 1568 } 1569 1570 EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1571 EGLint attribute, EGLint *value) 1572 { 1573 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1574 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1575 1576 return getConfigAttrib(dpy, config, attribute, value); 1577 } 1578 1579 // ---------------------------------------------------------------------------- 1580 // surfaces 1581 // ---------------------------------------------------------------------------- 1582 1583 EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1584 NativeWindowType window, 1585 const EGLint *attrib_list) 1586 { 1587 return createWindowSurface(dpy, config, window, attrib_list); 1588 } 1589 1590 EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1591 NativePixmapType pixmap, 1592 const EGLint *attrib_list) 1593 { 1594 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1595 } 1596 1597 EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1598 const EGLint *attrib_list) 1599 { 1600 return createPbufferSurface(dpy, config, attrib_list); 1601 } 1602 1603 EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1604 { 1605 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1606 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1607 if (eglSurface != EGL_NO_SURFACE) { 1608 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1609 if (!surface->isValid()) 1610 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1611 if (surface->dpy != dpy) 1612 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1613 if (surface->ctx) { 1614 // FIXME: this surface is current check what the spec says 1615 surface->disconnect(); 1616 surface->ctx = 0; 1617 } 1618 delete surface; 1619 } 1620 return EGL_TRUE; 1621 } 1622 1623 EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1624 EGLint attribute, EGLint *value) 1625 { 1626 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1627 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1628 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1629 if (!surface->isValid()) 1630 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1631 if (surface->dpy != dpy) 1632 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1633 1634 EGLBoolean ret = EGL_TRUE; 1635 switch (attribute) { 1636 case EGL_CONFIG_ID: 1637 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1638 break; 1639 case EGL_WIDTH: 1640 *value = surface->getWidth(); 1641 break; 1642 case EGL_HEIGHT: 1643 *value = surface->getHeight(); 1644 break; 1645 case EGL_LARGEST_PBUFFER: 1646 // not modified for a window or pixmap surface 1647 break; 1648 case EGL_TEXTURE_FORMAT: 1649 *value = EGL_NO_TEXTURE; 1650 break; 1651 case EGL_TEXTURE_TARGET: 1652 *value = EGL_NO_TEXTURE; 1653 break; 1654 case EGL_MIPMAP_TEXTURE: 1655 *value = EGL_FALSE; 1656 break; 1657 case EGL_MIPMAP_LEVEL: 1658 *value = 0; 1659 break; 1660 case EGL_RENDER_BUFFER: 1661 // TODO: return the real RENDER_BUFFER here 1662 *value = EGL_BACK_BUFFER; 1663 break; 1664 case EGL_HORIZONTAL_RESOLUTION: 1665 // pixel/mm * EGL_DISPLAY_SCALING 1666 *value = surface->getHorizontalResolution(); 1667 break; 1668 case EGL_VERTICAL_RESOLUTION: 1669 // pixel/mm * EGL_DISPLAY_SCALING 1670 *value = surface->getVerticalResolution(); 1671 break; 1672 case EGL_PIXEL_ASPECT_RATIO: { 1673 // w/h * EGL_DISPLAY_SCALING 1674 int wr = surface->getHorizontalResolution(); 1675 int hr = surface->getVerticalResolution(); 1676 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1677 } break; 1678 case EGL_SWAP_BEHAVIOR: 1679 *value = surface->getSwapBehavior(); 1680 break; 1681 default: 1682 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1683 } 1684 return ret; 1685 } 1686 1687 EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1688 EGLContext share_list, const EGLint *attrib_list) 1689 { 1690 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1691 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1692 1693 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1694 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1695 1696 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1697 c->flags = egl_context_t::NEVER_CURRENT; 1698 c->dpy = dpy; 1699 c->config = config; 1700 c->read = 0; 1701 c->draw = 0; 1702 return (EGLContext)gl; 1703 } 1704 1705 EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1706 { 1707 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1708 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1709 egl_context_t* c = egl_context_t::context(ctx); 1710 if (c->flags & egl_context_t::IS_CURRENT) 1711 setGlThreadSpecific(0); 1712 ogles_uninit((ogles_context_t*)ctx); 1713 return EGL_TRUE; 1714 } 1715 1716 EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1717 EGLSurface read, EGLContext ctx) 1718 { 1719 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1720 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1721 if (draw) { 1722 egl_surface_t* s = (egl_surface_t*)draw; 1723 if (!s->isValid()) 1724 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1725 if (s->dpy != dpy) 1726 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1727 // TODO: check that draw is compatible with the context 1728 } 1729 if (read && read!=draw) { 1730 egl_surface_t* s = (egl_surface_t*)read; 1731 if (!s->isValid()) 1732 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1733 if (s->dpy != dpy) 1734 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1735 // TODO: check that read is compatible with the context 1736 } 1737 1738 EGLContext current_ctx = EGL_NO_CONTEXT; 1739 1740 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1741 return setError(EGL_BAD_MATCH, EGL_FALSE); 1742 1743 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1744 return setError(EGL_BAD_MATCH, EGL_FALSE); 1745 1746 if (ctx == EGL_NO_CONTEXT) { 1747 // if we're detaching, we need the current context 1748 current_ctx = (EGLContext)getGlThreadSpecific(); 1749 } else { 1750 egl_context_t* c = egl_context_t::context(ctx); 1751 egl_surface_t* d = (egl_surface_t*)draw; 1752 egl_surface_t* r = (egl_surface_t*)read; 1753 if ((d && d->ctx && d->ctx != ctx) || 1754 (r && r->ctx && r->ctx != ctx)) { 1755 // one of the surface is bound to a context in another thread 1756 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1757 } 1758 } 1759 1760 ogles_context_t* gl = (ogles_context_t*)ctx; 1761 if (makeCurrent(gl) == 0) { 1762 if (ctx) { 1763 egl_context_t* c = egl_context_t::context(ctx); 1764 egl_surface_t* d = (egl_surface_t*)draw; 1765 egl_surface_t* r = (egl_surface_t*)read; 1766 1767 if (c->draw) { 1768 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1769 s->disconnect(); 1770 } 1771 if (c->read) { 1772 // FIXME: unlock/disconnect the read surface too 1773 } 1774 1775 c->draw = draw; 1776 c->read = read; 1777 1778 if (c->flags & egl_context_t::NEVER_CURRENT) { 1779 c->flags &= ~egl_context_t::NEVER_CURRENT; 1780 GLint w = 0; 1781 GLint h = 0; 1782 if (draw) { 1783 w = d->getWidth(); 1784 h = d->getHeight(); 1785 } 1786 ogles_surfaceport(gl, 0, 0); 1787 ogles_viewport(gl, 0, 0, w, h); 1788 ogles_scissor(gl, 0, 0, w, h); 1789 } 1790 if (d) { 1791 if (d->connect() == EGL_FALSE) { 1792 return EGL_FALSE; 1793 } 1794 d->ctx = ctx; 1795 d->bindDrawSurface(gl); 1796 } 1797 if (r) { 1798 // FIXME: lock/connect the read surface too 1799 r->ctx = ctx; 1800 r->bindReadSurface(gl); 1801 } 1802 } else { 1803 // if surfaces were bound to the context bound to this thread 1804 // mark then as unbound. 1805 if (current_ctx) { 1806 egl_context_t* c = egl_context_t::context(current_ctx); 1807 egl_surface_t* d = (egl_surface_t*)c->draw; 1808 egl_surface_t* r = (egl_surface_t*)c->read; 1809 if (d) { 1810 c->draw = 0; 1811 d->ctx = EGL_NO_CONTEXT; 1812 d->disconnect(); 1813 } 1814 if (r) { 1815 c->read = 0; 1816 r->ctx = EGL_NO_CONTEXT; 1817 // FIXME: unlock/disconnect the read surface too 1818 } 1819 } 1820 } 1821 return EGL_TRUE; 1822 } 1823 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1824 } 1825 1826 EGLContext eglGetCurrentContext(void) 1827 { 1828 // eglGetCurrentContext returns the current EGL rendering context, 1829 // as specified by eglMakeCurrent. If no context is current, 1830 // EGL_NO_CONTEXT is returned. 1831 return (EGLContext)getGlThreadSpecific(); 1832 } 1833 1834 EGLSurface eglGetCurrentSurface(EGLint readdraw) 1835 { 1836 // eglGetCurrentSurface returns the read or draw surface attached 1837 // to the current EGL rendering context, as specified by eglMakeCurrent. 1838 // If no context is current, EGL_NO_SURFACE is returned. 1839 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1840 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1841 egl_context_t* c = egl_context_t::context(ctx); 1842 if (readdraw == EGL_READ) { 1843 return c->read; 1844 } else if (readdraw == EGL_DRAW) { 1845 return c->draw; 1846 } 1847 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1848 } 1849 1850 EGLDisplay eglGetCurrentDisplay(void) 1851 { 1852 // eglGetCurrentDisplay returns the current EGL display connection 1853 // for the current EGL rendering context, as specified by eglMakeCurrent. 1854 // If no context is current, EGL_NO_DISPLAY is returned. 1855 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1856 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1857 egl_context_t* c = egl_context_t::context(ctx); 1858 return c->dpy; 1859 } 1860 1861 EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1862 EGLint attribute, EGLint *value) 1863 { 1864 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1865 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1866 egl_context_t* c = egl_context_t::context(ctx); 1867 switch (attribute) { 1868 case EGL_CONFIG_ID: 1869 // Returns the ID of the EGL frame buffer configuration with 1870 // respect to which the context was created 1871 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1872 } 1873 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1874 } 1875 1876 EGLBoolean eglWaitGL(void) 1877 { 1878 return EGL_TRUE; 1879 } 1880 1881 EGLBoolean eglWaitNative(EGLint engine) 1882 { 1883 return EGL_TRUE; 1884 } 1885 1886 EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1887 { 1888 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1889 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1890 1891 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1892 if (!d->isValid()) 1893 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1894 if (d->dpy != dpy) 1895 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1896 1897 // post the surface 1898 d->swapBuffers(); 1899 1900 // if it's bound to a context, update the buffer 1901 if (d->ctx != EGL_NO_CONTEXT) { 1902 d->bindDrawSurface((ogles_context_t*)d->ctx); 1903 // if this surface is also the read surface of the context 1904 // it is bound to, make sure to update the read buffer as well. 1905 // The EGL spec is a little unclear about this. 1906 egl_context_t* c = egl_context_t::context(d->ctx); 1907 if (c->read == draw) { 1908 d->bindReadSurface((ogles_context_t*)d->ctx); 1909 } 1910 } 1911 1912 return EGL_TRUE; 1913 } 1914 1915 EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1916 NativePixmapType target) 1917 { 1918 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1919 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1920 // TODO: eglCopyBuffers() 1921 return EGL_FALSE; 1922 } 1923 1924 EGLint eglGetError(void) 1925 { 1926 return getError(); 1927 } 1928 1929 const char* eglQueryString(EGLDisplay dpy, EGLint name) 1930 { 1931 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1932 return setError(EGL_BAD_DISPLAY, (const char*)0); 1933 1934 switch (name) { 1935 case EGL_VENDOR: 1936 return gVendorString; 1937 case EGL_VERSION: 1938 return gVersionString; 1939 case EGL_EXTENSIONS: 1940 return gExtensionsString; 1941 case EGL_CLIENT_APIS: 1942 return gClientApiString; 1943 } 1944 return setError(EGL_BAD_PARAMETER, (const char *)0); 1945 } 1946 1947 // ---------------------------------------------------------------------------- 1948 // EGL 1.1 1949 // ---------------------------------------------------------------------------- 1950 1951 EGLBoolean eglSurfaceAttrib( 1952 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1953 { 1954 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1955 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1956 // TODO: eglSurfaceAttrib() 1957 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1958 } 1959 1960 EGLBoolean eglBindTexImage( 1961 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1962 { 1963 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1964 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1965 // TODO: eglBindTexImage() 1966 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1967 } 1968 1969 EGLBoolean eglReleaseTexImage( 1970 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1971 { 1972 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1973 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1974 // TODO: eglReleaseTexImage() 1975 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1976 } 1977 1978 EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1979 { 1980 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1981 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1982 // TODO: eglSwapInterval() 1983 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1984 } 1985 1986 // ---------------------------------------------------------------------------- 1987 // EGL 1.2 1988 // ---------------------------------------------------------------------------- 1989 1990 EGLBoolean eglBindAPI(EGLenum api) 1991 { 1992 if (api != EGL_OPENGL_ES_API) 1993 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1994 return EGL_TRUE; 1995 } 1996 1997 EGLenum eglQueryAPI(void) 1998 { 1999 return EGL_OPENGL_ES_API; 2000 } 2001 2002 EGLBoolean eglWaitClient(void) 2003 { 2004 glFinish(); 2005 return EGL_TRUE; 2006 } 2007 2008 EGLBoolean eglReleaseThread(void) 2009 { 2010 // TODO: eglReleaseThread() 2011 return EGL_TRUE; 2012 } 2013 2014 EGLSurface eglCreatePbufferFromClientBuffer( 2015 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 2016 EGLConfig config, const EGLint *attrib_list) 2017 { 2018 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2019 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 2020 // TODO: eglCreatePbufferFromClientBuffer() 2021 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 2022 } 2023 2024 // ---------------------------------------------------------------------------- 2025 // EGL_EGLEXT_VERSION 3 2026 // ---------------------------------------------------------------------------- 2027 2028 void (*eglGetProcAddress (const char *procname))() 2029 { 2030 extention_map_t const * const map = gExtentionMap; 2031 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 2032 if (!strcmp(procname, map[i].name)) { 2033 return map[i].address; 2034 } 2035 } 2036 return NULL; 2037 } 2038 2039 EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 2040 const EGLint *attrib_list) 2041 { 2042 EGLBoolean result = EGL_FALSE; 2043 return result; 2044 } 2045 2046 EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 2047 { 2048 EGLBoolean result = EGL_FALSE; 2049 return result; 2050 } 2051 2052 EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 2053 EGLClientBuffer buffer, const EGLint *attrib_list) 2054 { 2055 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2056 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 2057 } 2058 if (ctx != EGL_NO_CONTEXT) { 2059 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2060 } 2061 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2062 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2063 } 2064 2065 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 2066 2067 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2068 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2069 2070 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2071 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2072 2073 switch (native_buffer->format) { 2074 case HAL_PIXEL_FORMAT_RGBA_8888: 2075 case HAL_PIXEL_FORMAT_RGBX_8888: 2076 case HAL_PIXEL_FORMAT_RGB_888: 2077 case HAL_PIXEL_FORMAT_RGB_565: 2078 case HAL_PIXEL_FORMAT_BGRA_8888: 2079 case HAL_PIXEL_FORMAT_RGBA_5551: 2080 case HAL_PIXEL_FORMAT_RGBA_4444: 2081 break; 2082 default: 2083 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2084 } 2085 2086 native_buffer->common.incRef(&native_buffer->common); 2087 return (EGLImageKHR)native_buffer; 2088 } 2089 2090 EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2091 { 2092 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2093 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2094 } 2095 2096 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 2097 2098 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2099 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2100 2101 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2102 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2103 2104 native_buffer->common.decRef(&native_buffer->common); 2105 2106 return EGL_TRUE; 2107 } 2108 2109 // ---------------------------------------------------------------------------- 2110 // ANDROID extensions 2111 // ---------------------------------------------------------------------------- 2112 2113 EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2114 EGLint left, EGLint top, EGLint width, EGLint height) 2115 { 2116 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2117 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2118 2119 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2120 if (!d->isValid()) 2121 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2122 if (d->dpy != dpy) 2123 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2124 2125 // post the surface 2126 d->setSwapRectangle(left, top, width, height); 2127 2128 return EGL_TRUE; 2129 } 2130
