egl.cpp revision 697526bc9e44ce61c88614f98387ae8bbf0a187e
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 44#include "context.h" 45#include "state.h" 46#include "texture.h" 47#include "matrix.h" 48 49#undef NELEM 50#define NELEM(x) (sizeof(x)/sizeof(*(x))) 51 52// ---------------------------------------------------------------------------- 53namespace android { 54// ---------------------------------------------------------------------------- 55 56const unsigned int NUM_DISPLAYS = 1; 57 58static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER; 59static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER; 60static pthread_key_t gEGLErrorKey = -1; 61#ifndef HAVE_ANDROID_OS 62namespace gl { 63pthread_key_t gGLKey = -1; 64}; // namespace gl 65#endif 66 67template<typename T> 68static T setError(GLint error, T returnValue) { 69 if (ggl_unlikely(gEGLErrorKey == -1)) { 70 pthread_mutex_lock(&gErrorKeyMutex); 71 if (gEGLErrorKey == -1) 72 pthread_key_create(&gEGLErrorKey, NULL); 73 pthread_mutex_unlock(&gErrorKeyMutex); 74 } 75 pthread_setspecific(gEGLErrorKey, (void*)error); 76 return returnValue; 77} 78 79static GLint getError() { 80 if (ggl_unlikely(gEGLErrorKey == -1)) 81 return EGL_SUCCESS; 82 GLint error = (GLint)pthread_getspecific(gEGLErrorKey); 83 if (error == 0) { 84 // The TLS key has been created by another thread, but the value for 85 // this thread has not been initialized. 86 return EGL_SUCCESS; 87 } 88 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS); 89 return error; 90} 91 92// ---------------------------------------------------------------------------- 93 94struct egl_display_t 95{ 96 egl_display_t() : type(0), initialized(0) { } 97 98 static egl_display_t& get_display(EGLDisplay dpy); 99 100 static EGLBoolean is_valid(EGLDisplay dpy) { 101 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE; 102 } 103 104 NativeDisplayType type; 105 volatile int32_t initialized; 106}; 107 108static egl_display_t gDisplays[NUM_DISPLAYS]; 109 110egl_display_t& egl_display_t::get_display(EGLDisplay dpy) { 111 return gDisplays[uintptr_t(dpy)-1U]; 112} 113 114struct egl_context_t { 115 enum { 116 IS_CURRENT = 0x00010000, 117 NEVER_CURRENT = 0x00020000 118 }; 119 uint32_t flags; 120 EGLDisplay dpy; 121 EGLConfig config; 122 EGLSurface read; 123 EGLSurface draw; 124 125 static inline egl_context_t* context(EGLContext ctx) { 126 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx); 127 return static_cast<egl_context_t*>(gl->rasterizer.base); 128 } 129}; 130 131// ---------------------------------------------------------------------------- 132 133struct egl_surface_t 134{ 135 enum { 136 PAGE_FLIP = 0x00000001, 137 MAGIC = 0x31415265 138 }; 139 140 uint32_t magic; 141 EGLDisplay dpy; 142 EGLConfig config; 143 EGLContext ctx; 144 145 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat); 146 virtual ~egl_surface_t(); 147 bool isValid() const; 148 virtual bool initCheck() const = 0; 149 150 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 151 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 152 virtual EGLBoolean connect() { return EGL_TRUE; } 153 virtual void disconnect() {} 154 virtual EGLint getWidth() const = 0; 155 virtual EGLint getHeight() const = 0; 156 157 virtual EGLint getHorizontalResolution() const; 158 virtual EGLint getVerticalResolution() const; 159 virtual EGLint getRefreshRate() const; 160 virtual EGLint getSwapBehavior() const; 161 virtual EGLBoolean swapBuffers(); 162 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 163protected: 164 GGLSurface depth; 165}; 166 167egl_surface_t::egl_surface_t(EGLDisplay dpy, 168 EGLConfig config, 169 int32_t depthFormat) 170 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 171{ 172 depth.version = sizeof(GGLSurface); 173 depth.data = 0; 174 depth.format = depthFormat; 175} 176egl_surface_t::~egl_surface_t() 177{ 178 magic = 0; 179 free(depth.data); 180} 181bool egl_surface_t::isValid() const { 182 LOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this); 183 return magic == MAGIC; 184} 185 186EGLBoolean egl_surface_t::swapBuffers() { 187 return EGL_FALSE; 188} 189EGLint egl_surface_t::getHorizontalResolution() const { 190 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 191} 192EGLint egl_surface_t::getVerticalResolution() const { 193 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 194} 195EGLint egl_surface_t::getRefreshRate() const { 196 return (60 * EGL_DISPLAY_SCALING); 197} 198EGLint egl_surface_t::getSwapBehavior() const { 199 return EGL_BUFFER_PRESERVED; 200} 201EGLBoolean egl_surface_t::setSwapRectangle( 202 EGLint l, EGLint t, EGLint w, EGLint h) 203{ 204 return EGL_FALSE; 205} 206 207// ---------------------------------------------------------------------------- 208 209struct egl_window_surface_v2_t : public egl_surface_t 210{ 211 egl_window_surface_v2_t( 212 EGLDisplay dpy, EGLConfig config, 213 int32_t depthFormat, 214 ANativeWindow* window); 215 216 ~egl_window_surface_v2_t(); 217 218 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails 219 virtual EGLBoolean swapBuffers(); 220 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 221 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 222 virtual EGLBoolean connect(); 223 virtual void disconnect(); 224 virtual EGLint getWidth() const { return width; } 225 virtual EGLint getHeight() const { return height; } 226 virtual EGLint getHorizontalResolution() const; 227 virtual EGLint getVerticalResolution() const; 228 virtual EGLint getRefreshRate() const; 229 virtual EGLint getSwapBehavior() const; 230 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 231 232private: 233 status_t lock(ANativeWindowBuffer* buf, int usage, void** vaddr); 234 status_t unlock(ANativeWindowBuffer* buf); 235 ANativeWindow* nativeWindow; 236 ANativeWindowBuffer* buffer; 237 ANativeWindowBuffer* previousBuffer; 238 gralloc_module_t const* module; 239 int width; 240 int height; 241 void* bits; 242 GGLFormat const* pixelFormatTable; 243 244 struct Rect { 245 inline Rect() { }; 246 inline Rect(int32_t w, int32_t h) 247 : left(0), top(0), right(w), bottom(h) { } 248 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 249 : left(l), top(t), right(r), bottom(b) { } 250 Rect& andSelf(const Rect& r) { 251 left = max(left, r.left); 252 top = max(top, r.top); 253 right = min(right, r.right); 254 bottom = min(bottom, r.bottom); 255 return *this; 256 } 257 bool isEmpty() const { 258 return (left>=right || top>=bottom); 259 } 260 void dump(char const* what) { 261 LOGD("%s { %5d, %5d, w=%5d, h=%5d }", 262 what, left, top, right-left, bottom-top); 263 } 264 265 int32_t left; 266 int32_t top; 267 int32_t right; 268 int32_t bottom; 269 }; 270 271 struct Region { 272 inline Region() : count(0) { } 273 typedef Rect const* const_iterator; 274 const_iterator begin() const { return storage; } 275 const_iterator end() const { return storage+count; } 276 static Region subtract(const Rect& lhs, const Rect& rhs) { 277 Region reg; 278 Rect* storage = reg.storage; 279 if (!lhs.isEmpty()) { 280 if (lhs.top < rhs.top) { // top rect 281 storage->left = lhs.left; 282 storage->top = lhs.top; 283 storage->right = lhs.right; 284 storage->bottom = rhs.top; 285 storage++; 286 } 287 const int32_t top = max(lhs.top, rhs.top); 288 const int32_t bot = min(lhs.bottom, rhs.bottom); 289 if (top < bot) { 290 if (lhs.left < rhs.left) { // left-side rect 291 storage->left = lhs.left; 292 storage->top = top; 293 storage->right = rhs.left; 294 storage->bottom = bot; 295 storage++; 296 } 297 if (lhs.right > rhs.right) { // right-side rect 298 storage->left = rhs.right; 299 storage->top = top; 300 storage->right = lhs.right; 301 storage->bottom = bot; 302 storage++; 303 } 304 } 305 if (lhs.bottom > rhs.bottom) { // bottom rect 306 storage->left = lhs.left; 307 storage->top = rhs.bottom; 308 storage->right = lhs.right; 309 storage->bottom = lhs.bottom; 310 storage++; 311 } 312 reg.count = storage - reg.storage; 313 } 314 return reg; 315 } 316 bool isEmpty() const { 317 return count<=0; 318 } 319 private: 320 Rect storage[4]; 321 ssize_t count; 322 }; 323 324 void copyBlt( 325 ANativeWindowBuffer* dst, void* dst_vaddr, 326 ANativeWindowBuffer* src, void const* src_vaddr, 327 const Region& clip); 328 329 Rect dirtyRegion; 330 Rect oldDirtyRegion; 331}; 332 333egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 334 EGLConfig config, 335 int32_t depthFormat, 336 ANativeWindow* window) 337 : egl_surface_t(dpy, config, depthFormat), 338 nativeWindow(window), buffer(0), previousBuffer(0), module(0), 339 bits(NULL) 340{ 341 pixelFormatTable = gglGetPixelFormatTable(); 342 343 // keep a reference on the window 344 nativeWindow->common.incRef(&nativeWindow->common); 345 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width); 346 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height); 347} 348 349egl_window_surface_v2_t::~egl_window_surface_v2_t() { 350 if (buffer) { 351 buffer->common.decRef(&buffer->common); 352 } 353 if (previousBuffer) { 354 previousBuffer->common.decRef(&previousBuffer->common); 355 } 356 nativeWindow->common.decRef(&nativeWindow->common); 357} 358 359EGLBoolean egl_window_surface_v2_t::connect() 360{ 361 // we're intending to do software rendering 362 native_window_set_usage(nativeWindow, 363 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); 364 365 // dequeue a buffer 366 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) { 367 return setError(EGL_BAD_ALLOC, EGL_FALSE); 368 } 369 370 // allocate a corresponding depth-buffer 371 width = buffer->width; 372 height = buffer->height; 373 if (depth.format) { 374 depth.width = width; 375 depth.height = height; 376 depth.stride = depth.width; // use the width here 377 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 378 if (depth.data == 0) { 379 return setError(EGL_BAD_ALLOC, EGL_FALSE); 380 } 381 } 382 383 // keep a reference on the buffer 384 buffer->common.incRef(&buffer->common); 385 386 // Lock the buffer 387 nativeWindow->lockBuffer(nativeWindow, buffer); 388 // pin the buffer down 389 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 390 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 391 LOGE("connect() failed to lock buffer %p (%ux%u)", 392 buffer, buffer->width, buffer->height); 393 return setError(EGL_BAD_ACCESS, EGL_FALSE); 394 // FIXME: we should make sure we're not accessing the buffer anymore 395 } 396 return EGL_TRUE; 397} 398 399void egl_window_surface_v2_t::disconnect() 400{ 401 if (buffer && bits) { 402 bits = NULL; 403 unlock(buffer); 404 } 405 // enqueue the last frame 406 nativeWindow->queueBuffer(nativeWindow, buffer); 407 if (buffer) { 408 buffer->common.decRef(&buffer->common); 409 buffer = 0; 410 } 411 if (previousBuffer) { 412 previousBuffer->common.decRef(&previousBuffer->common); 413 previousBuffer = 0; 414 } 415} 416 417status_t egl_window_surface_v2_t::lock( 418 ANativeWindowBuffer* buf, int usage, void** vaddr) 419{ 420 int err; 421 422 err = module->lock(module, buf->handle, 423 usage, 0, 0, buf->width, buf->height, vaddr); 424 425 return err; 426} 427 428status_t egl_window_surface_v2_t::unlock(ANativeWindowBuffer* buf) 429{ 430 if (!buf) return BAD_VALUE; 431 int err = NO_ERROR; 432 433 err = module->unlock(module, buf->handle); 434 435 return err; 436} 437 438void egl_window_surface_v2_t::copyBlt( 439 ANativeWindowBuffer* dst, void* dst_vaddr, 440 ANativeWindowBuffer* src, void const* src_vaddr, 441 const Region& clip) 442{ 443 // NOTE: dst and src must be the same format 444 445 Region::const_iterator cur = clip.begin(); 446 Region::const_iterator end = clip.end(); 447 448 const size_t bpp = pixelFormatTable[src->format].size; 449 const size_t dbpr = dst->stride * bpp; 450 const size_t sbpr = src->stride * bpp; 451 452 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 453 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 454 455 while (cur != end) { 456 const Rect& r(*cur++); 457 ssize_t w = r.right - r.left; 458 ssize_t h = r.bottom - r.top; 459 if (w <= 0 || h<=0) continue; 460 size_t size = w * bpp; 461 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 462 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 463 if (dbpr==sbpr && size==sbpr) { 464 size *= h; 465 h = 1; 466 } 467 do { 468 memcpy(d, s, size); 469 d += dbpr; 470 s += sbpr; 471 } while (--h > 0); 472 } 473} 474 475EGLBoolean egl_window_surface_v2_t::swapBuffers() 476{ 477 if (!buffer) { 478 return setError(EGL_BAD_ACCESS, EGL_FALSE); 479 } 480 481 /* 482 * Handle eglSetSwapRectangleANDROID() 483 * We copyback from the front buffer 484 */ 485 if (!dirtyRegion.isEmpty()) { 486 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 487 if (previousBuffer) { 488 // This was const Region copyBack, but that causes an 489 // internal compile error on simulator builds 490 /*const*/ Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 491 if (!copyBack.isEmpty()) { 492 void* prevBits; 493 if (lock(previousBuffer, 494 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 495 // copy from previousBuffer to buffer 496 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 497 unlock(previousBuffer); 498 } 499 } 500 } 501 oldDirtyRegion = dirtyRegion; 502 } 503 504 if (previousBuffer) { 505 previousBuffer->common.decRef(&previousBuffer->common); 506 previousBuffer = 0; 507 } 508 509 unlock(buffer); 510 previousBuffer = buffer; 511 nativeWindow->queueBuffer(nativeWindow, buffer); 512 buffer = 0; 513 514 // dequeue a new buffer 515 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) { 516 517 // TODO: lockBuffer should rather be executed when the very first 518 // direct rendering occurs. 519 nativeWindow->lockBuffer(nativeWindow, buffer); 520 521 // reallocate the depth-buffer if needed 522 if ((width != buffer->width) || (height != buffer->height)) { 523 // TODO: we probably should reset the swap rect here 524 // if the window size has changed 525 width = buffer->width; 526 height = buffer->height; 527 if (depth.data) { 528 free(depth.data); 529 depth.width = width; 530 depth.height = height; 531 depth.stride = buffer->stride; 532 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 533 if (depth.data == 0) { 534 setError(EGL_BAD_ALLOC, EGL_FALSE); 535 return EGL_FALSE; 536 } 537 } 538 } 539 540 // keep a reference on the buffer 541 buffer->common.incRef(&buffer->common); 542 543 // finally pin the buffer down 544 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 545 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 546 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 547 buffer, buffer->width, buffer->height); 548 return setError(EGL_BAD_ACCESS, EGL_FALSE); 549 // FIXME: we should make sure we're not accessing the buffer anymore 550 } 551 } else { 552 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE); 553 } 554 555 return EGL_TRUE; 556} 557 558EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 559 EGLint l, EGLint t, EGLint w, EGLint h) 560{ 561 dirtyRegion = Rect(l, t, l+w, t+h); 562 return EGL_TRUE; 563} 564 565EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 566{ 567 GGLSurface buffer; 568 buffer.version = sizeof(GGLSurface); 569 buffer.width = this->buffer->width; 570 buffer.height = this->buffer->height; 571 buffer.stride = this->buffer->stride; 572 buffer.data = (GGLubyte*)bits; 573 buffer.format = this->buffer->format; 574 gl->rasterizer.procs.colorBuffer(gl, &buffer); 575 if (depth.data != gl->rasterizer.state.buffers.depth.data) 576 gl->rasterizer.procs.depthBuffer(gl, &depth); 577 578 return EGL_TRUE; 579} 580EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 581{ 582 GGLSurface buffer; 583 buffer.version = sizeof(GGLSurface); 584 buffer.width = this->buffer->width; 585 buffer.height = this->buffer->height; 586 buffer.stride = this->buffer->stride; 587 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 588 buffer.format = this->buffer->format; 589 gl->rasterizer.procs.readBuffer(gl, &buffer); 590 return EGL_TRUE; 591} 592EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 593 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 594} 595EGLint egl_window_surface_v2_t::getVerticalResolution() const { 596 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 597} 598EGLint egl_window_surface_v2_t::getRefreshRate() const { 599 return (60 * EGL_DISPLAY_SCALING); // FIXME 600} 601EGLint egl_window_surface_v2_t::getSwapBehavior() const 602{ 603 /* 604 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 605 * the content of the swapped buffer. 606 * 607 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 608 * 609 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 610 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 611 * is, everything outside of this area is preserved. 612 * 613 * This implementation of EGL assumes the later case. 614 * 615 */ 616 617 return EGL_BUFFER_DESTROYED; 618} 619 620// ---------------------------------------------------------------------------- 621 622struct egl_pixmap_surface_t : public egl_surface_t 623{ 624 egl_pixmap_surface_t( 625 EGLDisplay dpy, EGLConfig config, 626 int32_t depthFormat, 627 egl_native_pixmap_t const * pixmap); 628 629 virtual ~egl_pixmap_surface_t() { } 630 631 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 632 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 633 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 634 virtual EGLint getWidth() const { return nativePixmap.width; } 635 virtual EGLint getHeight() const { return nativePixmap.height; } 636private: 637 egl_native_pixmap_t nativePixmap; 638}; 639 640egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 641 EGLConfig config, 642 int32_t depthFormat, 643 egl_native_pixmap_t const * pixmap) 644 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 645{ 646 if (depthFormat) { 647 depth.width = pixmap->width; 648 depth.height = pixmap->height; 649 depth.stride = depth.width; // use the width here 650 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 651 if (depth.data == 0) { 652 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 653 } 654 } 655} 656EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 657{ 658 GGLSurface buffer; 659 buffer.version = sizeof(GGLSurface); 660 buffer.width = nativePixmap.width; 661 buffer.height = nativePixmap.height; 662 buffer.stride = nativePixmap.stride; 663 buffer.data = nativePixmap.data; 664 buffer.format = nativePixmap.format; 665 666 gl->rasterizer.procs.colorBuffer(gl, &buffer); 667 if (depth.data != gl->rasterizer.state.buffers.depth.data) 668 gl->rasterizer.procs.depthBuffer(gl, &depth); 669 return EGL_TRUE; 670} 671EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 672{ 673 GGLSurface buffer; 674 buffer.version = sizeof(GGLSurface); 675 buffer.width = nativePixmap.width; 676 buffer.height = nativePixmap.height; 677 buffer.stride = nativePixmap.stride; 678 buffer.data = nativePixmap.data; 679 buffer.format = nativePixmap.format; 680 gl->rasterizer.procs.readBuffer(gl, &buffer); 681 return EGL_TRUE; 682} 683 684// ---------------------------------------------------------------------------- 685 686struct egl_pbuffer_surface_t : public egl_surface_t 687{ 688 egl_pbuffer_surface_t( 689 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 690 int32_t w, int32_t h, int32_t f); 691 692 virtual ~egl_pbuffer_surface_t(); 693 694 virtual bool initCheck() const { return pbuffer.data != 0; } 695 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 696 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 697 virtual EGLint getWidth() const { return pbuffer.width; } 698 virtual EGLint getHeight() const { return pbuffer.height; } 699private: 700 GGLSurface pbuffer; 701}; 702 703egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 704 EGLConfig config, int32_t depthFormat, 705 int32_t w, int32_t h, int32_t f) 706 : egl_surface_t(dpy, config, depthFormat) 707{ 708 size_t size = w*h; 709 switch (f) { 710 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 711 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 712 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 713 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break; 714 default: 715 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 716 pbuffer.data = 0; 717 break; 718 } 719 pbuffer.version = sizeof(GGLSurface); 720 pbuffer.width = w; 721 pbuffer.height = h; 722 pbuffer.stride = w; 723 pbuffer.data = (GGLubyte*)malloc(size); 724 pbuffer.format = f; 725 726 if (depthFormat) { 727 depth.width = pbuffer.width; 728 depth.height = pbuffer.height; 729 depth.stride = depth.width; // use the width here 730 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 731 if (depth.data == 0) { 732 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 733 return; 734 } 735 } 736} 737egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 738 free(pbuffer.data); 739} 740EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 741{ 742 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 743 if (depth.data != gl->rasterizer.state.buffers.depth.data) 744 gl->rasterizer.procs.depthBuffer(gl, &depth); 745 return EGL_TRUE; 746} 747EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 748{ 749 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 750 return EGL_TRUE; 751} 752 753// ---------------------------------------------------------------------------- 754 755struct config_pair_t { 756 GLint key; 757 GLint value; 758}; 759 760struct configs_t { 761 const config_pair_t* array; 762 int size; 763}; 764 765struct config_management_t { 766 GLint key; 767 bool (*match)(GLint reqValue, GLint confValue); 768 static bool atLeast(GLint reqValue, GLint confValue) { 769 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 770 } 771 static bool exact(GLint reqValue, GLint confValue) { 772 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 773 } 774 static bool mask(GLint reqValue, GLint confValue) { 775 return (confValue & reqValue) == reqValue; 776 } 777 static bool ignore(GLint reqValue, GLint confValue) { 778 return true; 779 } 780}; 781 782// ---------------------------------------------------------------------------- 783 784#define VERSION_MAJOR 1 785#define VERSION_MINOR 2 786static char const * const gVendorString = "Google Inc."; 787static char const * const gVersionString = "1.2 Android Driver 1.2.0"; 788static char const * const gClientApiString = "OpenGL ES"; 789static char const * const gExtensionsString = 790 "EGL_KHR_image_base " 791 // "KHR_image_pixmap " 792 "EGL_ANDROID_image_native_buffer " 793 "EGL_ANDROID_swap_rectangle " 794 ; 795 796// ---------------------------------------------------------------------------- 797 798struct extention_map_t { 799 const char * const name; 800 __eglMustCastToProperFunctionPointerType address; 801}; 802 803static const extention_map_t gExtentionMap[] = { 804 { "glDrawTexsOES", 805 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 806 { "glDrawTexiOES", 807 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 808 { "glDrawTexfOES", 809 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 810 { "glDrawTexxOES", 811 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 812 { "glDrawTexsvOES", 813 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 814 { "glDrawTexivOES", 815 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 816 { "glDrawTexfvOES", 817 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 818 { "glDrawTexxvOES", 819 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 820 { "glQueryMatrixxOES", 821 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 822 { "glEGLImageTargetTexture2DOES", 823 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 824 { "glEGLImageTargetRenderbufferStorageOES", 825 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 826 { "glClipPlanef", 827 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 828 { "glClipPlanex", 829 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 830 { "glBindBuffer", 831 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 832 { "glBufferData", 833 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 834 { "glBufferSubData", 835 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 836 { "glDeleteBuffers", 837 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 838 { "glGenBuffers", 839 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 840 { "eglCreateImageKHR", 841 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 842 { "eglDestroyImageKHR", 843 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 844 { "eglSetSwapRectangleANDROID", 845 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 846}; 847 848/* 849 * In the lists below, attributes names MUST be sorted. 850 * Additionally, all configs must be sorted according to 851 * the EGL specification. 852 */ 853 854static config_pair_t const config_base_attribute_list[] = { 855 { EGL_STENCIL_SIZE, 0 }, 856 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 857 { EGL_LEVEL, 0 }, 858 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 859 { EGL_MAX_PBUFFER_PIXELS, 860 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 861 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 862 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 863 { EGL_NATIVE_VISUAL_ID, 0 }, 864 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 865 { EGL_SAMPLES, 0 }, 866 { EGL_SAMPLE_BUFFERS, 0 }, 867 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 868 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 869 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 870 { EGL_TRANSPARENT_RED_VALUE, 0 }, 871 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 872 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 873 { EGL_MIN_SWAP_INTERVAL, 1 }, 874 { EGL_MAX_SWAP_INTERVAL, 1 }, 875 { EGL_LUMINANCE_SIZE, 0 }, 876 { EGL_ALPHA_MASK_SIZE, 0 }, 877 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER }, 878 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 879 { EGL_CONFORMANT, 0 } 880}; 881 882// These configs can override the base attribute list 883// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 884 885// 565 configs 886static config_pair_t const config_0_attribute_list[] = { 887 { EGL_BUFFER_SIZE, 16 }, 888 { EGL_ALPHA_SIZE, 0 }, 889 { EGL_BLUE_SIZE, 5 }, 890 { EGL_GREEN_SIZE, 6 }, 891 { EGL_RED_SIZE, 5 }, 892 { EGL_DEPTH_SIZE, 0 }, 893 { EGL_CONFIG_ID, 0 }, 894 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 895 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 896}; 897 898static config_pair_t const config_1_attribute_list[] = { 899 { EGL_BUFFER_SIZE, 16 }, 900 { EGL_ALPHA_SIZE, 0 }, 901 { EGL_BLUE_SIZE, 5 }, 902 { EGL_GREEN_SIZE, 6 }, 903 { EGL_RED_SIZE, 5 }, 904 { EGL_DEPTH_SIZE, 16 }, 905 { EGL_CONFIG_ID, 1 }, 906 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 907 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 908}; 909 910// RGB 888 configs 911static config_pair_t const config_2_attribute_list[] = { 912 { EGL_BUFFER_SIZE, 32 }, 913 { EGL_ALPHA_SIZE, 0 }, 914 { EGL_BLUE_SIZE, 8 }, 915 { EGL_GREEN_SIZE, 8 }, 916 { EGL_RED_SIZE, 8 }, 917 { EGL_DEPTH_SIZE, 0 }, 918 { EGL_CONFIG_ID, 6 }, 919 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 920 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 921}; 922 923static config_pair_t const config_3_attribute_list[] = { 924 { EGL_BUFFER_SIZE, 32 }, 925 { EGL_ALPHA_SIZE, 0 }, 926 { EGL_BLUE_SIZE, 8 }, 927 { EGL_GREEN_SIZE, 8 }, 928 { EGL_RED_SIZE, 8 }, 929 { EGL_DEPTH_SIZE, 16 }, 930 { EGL_CONFIG_ID, 7 }, 931 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 932 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 933}; 934 935// 8888 configs 936static config_pair_t const config_4_attribute_list[] = { 937 { EGL_BUFFER_SIZE, 32 }, 938 { EGL_ALPHA_SIZE, 8 }, 939 { EGL_BLUE_SIZE, 8 }, 940 { EGL_GREEN_SIZE, 8 }, 941 { EGL_RED_SIZE, 8 }, 942 { EGL_DEPTH_SIZE, 0 }, 943 { EGL_CONFIG_ID, 2 }, 944 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 945 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 946}; 947 948static config_pair_t const config_5_attribute_list[] = { 949 { EGL_BUFFER_SIZE, 32 }, 950 { EGL_ALPHA_SIZE, 8 }, 951 { EGL_BLUE_SIZE, 8 }, 952 { EGL_GREEN_SIZE, 8 }, 953 { EGL_RED_SIZE, 8 }, 954 { EGL_DEPTH_SIZE, 16 }, 955 { EGL_CONFIG_ID, 3 }, 956 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 957 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 958}; 959 960// A8 configs 961static config_pair_t const config_6_attribute_list[] = { 962 { EGL_BUFFER_SIZE, 8 }, 963 { EGL_ALPHA_SIZE, 8 }, 964 { EGL_BLUE_SIZE, 0 }, 965 { EGL_GREEN_SIZE, 0 }, 966 { EGL_RED_SIZE, 0 }, 967 { EGL_DEPTH_SIZE, 0 }, 968 { EGL_CONFIG_ID, 4 }, 969 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 970 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 971}; 972 973static config_pair_t const config_7_attribute_list[] = { 974 { EGL_BUFFER_SIZE, 8 }, 975 { EGL_ALPHA_SIZE, 8 }, 976 { EGL_BLUE_SIZE, 0 }, 977 { EGL_GREEN_SIZE, 0 }, 978 { EGL_RED_SIZE, 0 }, 979 { EGL_DEPTH_SIZE, 16 }, 980 { EGL_CONFIG_ID, 5 }, 981 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 982 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 983}; 984 985static configs_t const gConfigs[] = { 986 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 987 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 988 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 989 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 990 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 991 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 992 { config_6_attribute_list, NELEM(config_6_attribute_list) }, 993 { config_7_attribute_list, NELEM(config_7_attribute_list) }, 994}; 995 996static config_management_t const gConfigManagement[] = { 997 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 998 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 999 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1000 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1001 { EGL_RED_SIZE, config_management_t::atLeast }, 1002 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1003 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1004 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1005 { EGL_CONFIG_ID, config_management_t::exact }, 1006 { EGL_LEVEL, config_management_t::exact }, 1007 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::ignore }, 1008 { EGL_MAX_PBUFFER_PIXELS, config_management_t::ignore }, 1009 { EGL_MAX_PBUFFER_WIDTH, config_management_t::ignore }, 1010 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1011 { EGL_NATIVE_VISUAL_ID, config_management_t::ignore }, 1012 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1013 { EGL_SAMPLES, config_management_t::exact }, 1014 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1015 { EGL_SURFACE_TYPE, config_management_t::mask }, 1016 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1017 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1018 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1019 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1020 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1021 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1022 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1023 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1024 { EGL_LUMINANCE_SIZE, config_management_t::atLeast }, 1025 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast }, 1026 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact }, 1027 { EGL_RENDERABLE_TYPE, config_management_t::mask }, 1028 { EGL_CONFORMANT, config_management_t::mask } 1029}; 1030 1031 1032static config_pair_t const config_defaults[] = { 1033 // attributes that are not specified are simply ignored, if a particular 1034 // one needs not be ignored, it must be specified here, eg: 1035 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1036}; 1037 1038// ---------------------------------------------------------------------------- 1039 1040static status_t getConfigFormatInfo(EGLint configID, 1041 int32_t& pixelFormat, int32_t& depthFormat) 1042{ 1043 switch(configID) { 1044 case 0: 1045 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1046 depthFormat = 0; 1047 break; 1048 case 1: 1049 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1050 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1051 break; 1052 case 2: 1053 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1054 depthFormat = 0; 1055 break; 1056 case 3: 1057 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1058 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1059 break; 1060 case 4: 1061 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1062 depthFormat = 0; 1063 break; 1064 case 5: 1065 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1066 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1067 break; 1068 case 6: 1069 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1070 depthFormat = 0; 1071 break; 1072 case 7: 1073 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1074 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1075 break; 1076 default: 1077 return NAME_NOT_FOUND; 1078 } 1079 return NO_ERROR; 1080} 1081 1082// ---------------------------------------------------------------------------- 1083 1084template<typename T> 1085static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1086{ 1087 while (first <= last) { 1088 int mid = (first + last) / 2; 1089 if (key > sortedArray[mid].key) { 1090 first = mid + 1; 1091 } else if (key < sortedArray[mid].key) { 1092 last = mid - 1; 1093 } else { 1094 return mid; 1095 } 1096 } 1097 return -1; 1098} 1099 1100static int isAttributeMatching(int i, EGLint attr, EGLint val) 1101{ 1102 // look for the attribute in all of our configs 1103 config_pair_t const* configFound = gConfigs[i].array; 1104 int index = binarySearch<config_pair_t>( 1105 gConfigs[i].array, 1106 0, gConfigs[i].size-1, 1107 attr); 1108 if (index < 0) { 1109 configFound = config_base_attribute_list; 1110 index = binarySearch<config_pair_t>( 1111 config_base_attribute_list, 1112 0, NELEM(config_base_attribute_list)-1, 1113 attr); 1114 } 1115 if (index >= 0) { 1116 // attribute found, check if this config could match 1117 int cfgMgtIndex = binarySearch<config_management_t>( 1118 gConfigManagement, 1119 0, NELEM(gConfigManagement)-1, 1120 attr); 1121 if (cfgMgtIndex >= 0) { 1122 bool match = gConfigManagement[cfgMgtIndex].match( 1123 val, configFound[index].value); 1124 if (match) { 1125 // this config matches 1126 return 1; 1127 } 1128 } else { 1129 // attribute not found. this should NEVER happen. 1130 } 1131 } else { 1132 // error, this attribute doesn't exist 1133 } 1134 return 0; 1135} 1136 1137static int makeCurrent(ogles_context_t* gl) 1138{ 1139 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1140 if (gl) { 1141 egl_context_t* c = egl_context_t::context(gl); 1142 if (c->flags & egl_context_t::IS_CURRENT) { 1143 if (current != gl) { 1144 // it is an error to set a context current, if it's already 1145 // current to another thread 1146 return -1; 1147 } 1148 } else { 1149 if (current) { 1150 // mark the current context as not current, and flush 1151 glFlush(); 1152 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1153 } 1154 } 1155 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1156 // The context is not current, make it current! 1157 setGlThreadSpecific(gl); 1158 c->flags |= egl_context_t::IS_CURRENT; 1159 } 1160 } else { 1161 if (current) { 1162 // mark the current context as not current, and flush 1163 glFlush(); 1164 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1165 } 1166 // this thread has no context attached to it 1167 setGlThreadSpecific(0); 1168 } 1169 return 0; 1170} 1171 1172static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1173 EGLint attribute, EGLint *value) 1174{ 1175 size_t numConfigs = NELEM(gConfigs); 1176 int index = (int)config; 1177 if (uint32_t(index) >= numConfigs) 1178 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1179 1180 int attrIndex; 1181 attrIndex = binarySearch<config_pair_t>( 1182 gConfigs[index].array, 1183 0, gConfigs[index].size-1, 1184 attribute); 1185 if (attrIndex>=0) { 1186 *value = gConfigs[index].array[attrIndex].value; 1187 return EGL_TRUE; 1188 } 1189 1190 attrIndex = binarySearch<config_pair_t>( 1191 config_base_attribute_list, 1192 0, NELEM(config_base_attribute_list)-1, 1193 attribute); 1194 if (attrIndex>=0) { 1195 *value = config_base_attribute_list[attrIndex].value; 1196 return EGL_TRUE; 1197 } 1198 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1199} 1200 1201static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1202 NativeWindowType window, const EGLint *attrib_list) 1203{ 1204 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1205 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1206 if (window == 0) 1207 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1208 1209 EGLint surfaceType; 1210 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1211 return EGL_FALSE; 1212 1213 if (!(surfaceType & EGL_WINDOW_BIT)) 1214 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1215 1216 if (static_cast<ANativeWindow*>(window)->common.magic != 1217 ANDROID_NATIVE_WINDOW_MAGIC) { 1218 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1219 } 1220 1221 EGLint configID; 1222 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1223 return EGL_FALSE; 1224 1225 int32_t depthFormat; 1226 int32_t pixelFormat; 1227 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1228 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1229 } 1230 1231 // FIXME: we don't have access to the pixelFormat here just yet. 1232 // (it's possible that the surface is not fully initialized) 1233 // maybe this should be done after the page-flip 1234 //if (EGLint(info.format) != pixelFormat) 1235 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1236 1237 egl_surface_t* surface; 1238 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1239 static_cast<ANativeWindow*>(window)); 1240 1241 if (!surface->initCheck()) { 1242 // there was a problem in the ctor, the error 1243 // flag has been set. 1244 delete surface; 1245 surface = 0; 1246 } 1247 return surface; 1248} 1249 1250static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1251 NativePixmapType pixmap, const EGLint *attrib_list) 1252{ 1253 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1254 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1255 if (pixmap == 0) 1256 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1257 1258 EGLint surfaceType; 1259 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1260 return EGL_FALSE; 1261 1262 if (!(surfaceType & EGL_PIXMAP_BIT)) 1263 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1264 1265 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1266 sizeof(egl_native_pixmap_t)) { 1267 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1268 } 1269 1270 EGLint configID; 1271 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1272 return EGL_FALSE; 1273 1274 int32_t depthFormat; 1275 int32_t pixelFormat; 1276 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1277 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1278 } 1279 1280 if (pixmap->format != pixelFormat) 1281 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1282 1283 egl_surface_t* surface = 1284 new egl_pixmap_surface_t(dpy, config, depthFormat, 1285 static_cast<egl_native_pixmap_t*>(pixmap)); 1286 1287 if (!surface->initCheck()) { 1288 // there was a problem in the ctor, the error 1289 // flag has been set. 1290 delete surface; 1291 surface = 0; 1292 } 1293 return surface; 1294} 1295 1296static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1297 const EGLint *attrib_list) 1298{ 1299 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1300 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1301 1302 EGLint surfaceType; 1303 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1304 return EGL_FALSE; 1305 1306 if (!(surfaceType & EGL_PBUFFER_BIT)) 1307 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1308 1309 EGLint configID; 1310 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1311 return EGL_FALSE; 1312 1313 int32_t depthFormat; 1314 int32_t pixelFormat; 1315 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1316 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1317 } 1318 1319 int32_t w = 0; 1320 int32_t h = 0; 1321 while (attrib_list[0]) { 1322 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1323 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1324 attrib_list+=2; 1325 } 1326 1327 egl_surface_t* surface = 1328 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1329 1330 if (!surface->initCheck()) { 1331 // there was a problem in the ctor, the error 1332 // flag has been set. 1333 delete surface; 1334 surface = 0; 1335 } 1336 return surface; 1337} 1338 1339// ---------------------------------------------------------------------------- 1340}; // namespace android 1341// ---------------------------------------------------------------------------- 1342 1343using namespace android; 1344 1345// ---------------------------------------------------------------------------- 1346// Initialization 1347// ---------------------------------------------------------------------------- 1348 1349EGLDisplay eglGetDisplay(NativeDisplayType display) 1350{ 1351#ifndef HAVE_ANDROID_OS 1352 // this just needs to be done once 1353 if (gGLKey == -1) { 1354 pthread_mutex_lock(&gInitMutex); 1355 if (gGLKey == -1) 1356 pthread_key_create(&gGLKey, NULL); 1357 pthread_mutex_unlock(&gInitMutex); 1358 } 1359#endif 1360 if (display == EGL_DEFAULT_DISPLAY) { 1361 EGLDisplay dpy = (EGLDisplay)1; 1362 egl_display_t& d = egl_display_t::get_display(dpy); 1363 d.type = display; 1364 return dpy; 1365 } 1366 return EGL_NO_DISPLAY; 1367} 1368 1369EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1370{ 1371 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1372 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1373 1374 EGLBoolean res = EGL_TRUE; 1375 egl_display_t& d = egl_display_t::get_display(dpy); 1376 1377 if (android_atomic_inc(&d.initialized) == 0) { 1378 // initialize stuff here if needed 1379 //pthread_mutex_lock(&gInitMutex); 1380 //pthread_mutex_unlock(&gInitMutex); 1381 } 1382 1383 if (res == EGL_TRUE) { 1384 if (major != NULL) *major = VERSION_MAJOR; 1385 if (minor != NULL) *minor = VERSION_MINOR; 1386 } 1387 return res; 1388} 1389 1390EGLBoolean eglTerminate(EGLDisplay dpy) 1391{ 1392 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1393 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1394 1395 EGLBoolean res = EGL_TRUE; 1396 egl_display_t& d = egl_display_t::get_display(dpy); 1397 if (android_atomic_dec(&d.initialized) == 1) { 1398 // TODO: destroy all resources (surfaces, contexts, etc...) 1399 //pthread_mutex_lock(&gInitMutex); 1400 //pthread_mutex_unlock(&gInitMutex); 1401 } 1402 return res; 1403} 1404 1405// ---------------------------------------------------------------------------- 1406// configuration 1407// ---------------------------------------------------------------------------- 1408 1409EGLBoolean eglGetConfigs( EGLDisplay dpy, 1410 EGLConfig *configs, 1411 EGLint config_size, EGLint *num_config) 1412{ 1413 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1414 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1415 1416 GLint numConfigs = NELEM(gConfigs); 1417 if (!configs) { 1418 *num_config = numConfigs; 1419 return EGL_TRUE; 1420 } 1421 GLint i; 1422 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1423 *configs++ = (EGLConfig)i; 1424 } 1425 *num_config = i; 1426 return EGL_TRUE; 1427} 1428 1429EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1430 EGLConfig *configs, EGLint config_size, 1431 EGLint *num_config) 1432{ 1433 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1434 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1435 1436 if (ggl_unlikely(num_config==0)) { 1437 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1438 } 1439 1440 if (ggl_unlikely(attrib_list==0)) { 1441 /* 1442 * A NULL attrib_list should be treated as though it was an empty 1443 * one (terminated with EGL_NONE) as defined in 1444 * section 3.4.1 "Querying Configurations" in the EGL specification. 1445 */ 1446 static const EGLint dummy = EGL_NONE; 1447 attrib_list = &dummy; 1448 } 1449 1450 int numAttributes = 0; 1451 int numConfigs = NELEM(gConfigs); 1452 uint32_t possibleMatch = (1<<numConfigs)-1; 1453 while(possibleMatch && *attrib_list != EGL_NONE) { 1454 numAttributes++; 1455 EGLint attr = *attrib_list++; 1456 EGLint val = *attrib_list++; 1457 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1458 if (!(possibleMatch & (1<<i))) 1459 continue; 1460 if (isAttributeMatching(i, attr, val) == 0) { 1461 possibleMatch &= ~(1<<i); 1462 } 1463 } 1464 } 1465 1466 // now, handle the attributes which have a useful default value 1467 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) { 1468 // see if this attribute was specified, if not, apply its 1469 // default value 1470 if (binarySearch<config_pair_t>( 1471 (config_pair_t const*)attrib_list, 1472 0, numAttributes-1, 1473 config_defaults[j].key) < 0) 1474 { 1475 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1476 if (!(possibleMatch & (1<<i))) 1477 continue; 1478 if (isAttributeMatching(i, 1479 config_defaults[j].key, 1480 config_defaults[j].value) == 0) 1481 { 1482 possibleMatch &= ~(1<<i); 1483 } 1484 } 1485 } 1486 } 1487 1488 // return the configurations found 1489 int n=0; 1490 if (possibleMatch) { 1491 if (configs) { 1492 for (int i=0 ; config_size && i<numConfigs ; i++) { 1493 if (possibleMatch & (1<<i)) { 1494 *configs++ = (EGLConfig)i; 1495 config_size--; 1496 n++; 1497 } 1498 } 1499 } else { 1500 for (int i=0 ; i<numConfigs ; i++) { 1501 if (possibleMatch & (1<<i)) { 1502 n++; 1503 } 1504 } 1505 } 1506 } 1507 *num_config = n; 1508 return EGL_TRUE; 1509} 1510 1511EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1512 EGLint attribute, EGLint *value) 1513{ 1514 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1515 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1516 1517 return getConfigAttrib(dpy, config, attribute, value); 1518} 1519 1520// ---------------------------------------------------------------------------- 1521// surfaces 1522// ---------------------------------------------------------------------------- 1523 1524EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1525 NativeWindowType window, 1526 const EGLint *attrib_list) 1527{ 1528 return createWindowSurface(dpy, config, window, attrib_list); 1529} 1530 1531EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1532 NativePixmapType pixmap, 1533 const EGLint *attrib_list) 1534{ 1535 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1536} 1537 1538EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1539 const EGLint *attrib_list) 1540{ 1541 return createPbufferSurface(dpy, config, attrib_list); 1542} 1543 1544EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1545{ 1546 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1547 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1548 if (eglSurface != EGL_NO_SURFACE) { 1549 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1550 if (!surface->isValid()) 1551 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1552 if (surface->dpy != dpy) 1553 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1554 if (surface->ctx) { 1555 // FIXME: this surface is current check what the spec says 1556 surface->disconnect(); 1557 surface->ctx = 0; 1558 } 1559 delete surface; 1560 } 1561 return EGL_TRUE; 1562} 1563 1564EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1565 EGLint attribute, EGLint *value) 1566{ 1567 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1568 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1569 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1570 if (!surface->isValid()) 1571 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1572 if (surface->dpy != dpy) 1573 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1574 1575 EGLBoolean ret = EGL_TRUE; 1576 switch (attribute) { 1577 case EGL_CONFIG_ID: 1578 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1579 break; 1580 case EGL_WIDTH: 1581 *value = surface->getWidth(); 1582 break; 1583 case EGL_HEIGHT: 1584 *value = surface->getHeight(); 1585 break; 1586 case EGL_LARGEST_PBUFFER: 1587 // not modified for a window or pixmap surface 1588 break; 1589 case EGL_TEXTURE_FORMAT: 1590 *value = EGL_NO_TEXTURE; 1591 break; 1592 case EGL_TEXTURE_TARGET: 1593 *value = EGL_NO_TEXTURE; 1594 break; 1595 case EGL_MIPMAP_TEXTURE: 1596 *value = EGL_FALSE; 1597 break; 1598 case EGL_MIPMAP_LEVEL: 1599 *value = 0; 1600 break; 1601 case EGL_RENDER_BUFFER: 1602 // TODO: return the real RENDER_BUFFER here 1603 *value = EGL_BACK_BUFFER; 1604 break; 1605 case EGL_HORIZONTAL_RESOLUTION: 1606 // pixel/mm * EGL_DISPLAY_SCALING 1607 *value = surface->getHorizontalResolution(); 1608 break; 1609 case EGL_VERTICAL_RESOLUTION: 1610 // pixel/mm * EGL_DISPLAY_SCALING 1611 *value = surface->getVerticalResolution(); 1612 break; 1613 case EGL_PIXEL_ASPECT_RATIO: { 1614 // w/h * EGL_DISPLAY_SCALING 1615 int wr = surface->getHorizontalResolution(); 1616 int hr = surface->getVerticalResolution(); 1617 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1618 } break; 1619 case EGL_SWAP_BEHAVIOR: 1620 *value = surface->getSwapBehavior(); 1621 break; 1622 default: 1623 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1624 } 1625 return ret; 1626} 1627 1628EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1629 EGLContext share_list, const EGLint *attrib_list) 1630{ 1631 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1632 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1633 1634 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1635 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1636 1637 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1638 c->flags = egl_context_t::NEVER_CURRENT; 1639 c->dpy = dpy; 1640 c->config = config; 1641 c->read = 0; 1642 c->draw = 0; 1643 return (EGLContext)gl; 1644} 1645 1646EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1647{ 1648 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1649 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1650 egl_context_t* c = egl_context_t::context(ctx); 1651 if (c->flags & egl_context_t::IS_CURRENT) 1652 setGlThreadSpecific(0); 1653 ogles_uninit((ogles_context_t*)ctx); 1654 return EGL_TRUE; 1655} 1656 1657EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1658 EGLSurface read, EGLContext ctx) 1659{ 1660 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1661 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1662 if (draw) { 1663 egl_surface_t* s = (egl_surface_t*)draw; 1664 if (!s->isValid()) 1665 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1666 if (s->dpy != dpy) 1667 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1668 // TODO: check that draw is compatible with the context 1669 } 1670 if (read && read!=draw) { 1671 egl_surface_t* s = (egl_surface_t*)read; 1672 if (!s->isValid()) 1673 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1674 if (s->dpy != dpy) 1675 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1676 // TODO: check that read is compatible with the context 1677 } 1678 1679 EGLContext current_ctx = EGL_NO_CONTEXT; 1680 1681 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1682 return setError(EGL_BAD_MATCH, EGL_FALSE); 1683 1684 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1685 return setError(EGL_BAD_MATCH, EGL_FALSE); 1686 1687 if (ctx == EGL_NO_CONTEXT) { 1688 // if we're detaching, we need the current context 1689 current_ctx = (EGLContext)getGlThreadSpecific(); 1690 } else { 1691 egl_context_t* c = egl_context_t::context(ctx); 1692 egl_surface_t* d = (egl_surface_t*)draw; 1693 egl_surface_t* r = (egl_surface_t*)read; 1694 if ((d && d->ctx && d->ctx != ctx) || 1695 (r && r->ctx && r->ctx != ctx)) { 1696 // one of the surface is bound to a context in another thread 1697 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1698 } 1699 } 1700 1701 ogles_context_t* gl = (ogles_context_t*)ctx; 1702 if (makeCurrent(gl) == 0) { 1703 if (ctx) { 1704 egl_context_t* c = egl_context_t::context(ctx); 1705 egl_surface_t* d = (egl_surface_t*)draw; 1706 egl_surface_t* r = (egl_surface_t*)read; 1707 1708 if (c->draw) { 1709 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1710 s->disconnect(); 1711 } 1712 if (c->read) { 1713 // FIXME: unlock/disconnect the read surface too 1714 } 1715 1716 c->draw = draw; 1717 c->read = read; 1718 1719 if (c->flags & egl_context_t::NEVER_CURRENT) { 1720 c->flags &= ~egl_context_t::NEVER_CURRENT; 1721 GLint w = 0; 1722 GLint h = 0; 1723 if (draw) { 1724 w = d->getWidth(); 1725 h = d->getHeight(); 1726 } 1727 ogles_surfaceport(gl, 0, 0); 1728 ogles_viewport(gl, 0, 0, w, h); 1729 ogles_scissor(gl, 0, 0, w, h); 1730 } 1731 if (d) { 1732 if (d->connect() == EGL_FALSE) { 1733 return EGL_FALSE; 1734 } 1735 d->ctx = ctx; 1736 d->bindDrawSurface(gl); 1737 } 1738 if (r) { 1739 // FIXME: lock/connect the read surface too 1740 r->ctx = ctx; 1741 r->bindReadSurface(gl); 1742 } 1743 } else { 1744 // if surfaces were bound to the context bound to this thread 1745 // mark then as unbound. 1746 if (current_ctx) { 1747 egl_context_t* c = egl_context_t::context(current_ctx); 1748 egl_surface_t* d = (egl_surface_t*)c->draw; 1749 egl_surface_t* r = (egl_surface_t*)c->read; 1750 if (d) { 1751 c->draw = 0; 1752 d->ctx = EGL_NO_CONTEXT; 1753 d->disconnect(); 1754 } 1755 if (r) { 1756 c->read = 0; 1757 r->ctx = EGL_NO_CONTEXT; 1758 // FIXME: unlock/disconnect the read surface too 1759 } 1760 } 1761 } 1762 return EGL_TRUE; 1763 } 1764 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1765} 1766 1767EGLContext eglGetCurrentContext(void) 1768{ 1769 // eglGetCurrentContext returns the current EGL rendering context, 1770 // as specified by eglMakeCurrent. If no context is current, 1771 // EGL_NO_CONTEXT is returned. 1772 return (EGLContext)getGlThreadSpecific(); 1773} 1774 1775EGLSurface eglGetCurrentSurface(EGLint readdraw) 1776{ 1777 // eglGetCurrentSurface returns the read or draw surface attached 1778 // to the current EGL rendering context, as specified by eglMakeCurrent. 1779 // If no context is current, EGL_NO_SURFACE is returned. 1780 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1781 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1782 egl_context_t* c = egl_context_t::context(ctx); 1783 if (readdraw == EGL_READ) { 1784 return c->read; 1785 } else if (readdraw == EGL_DRAW) { 1786 return c->draw; 1787 } 1788 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1789} 1790 1791EGLDisplay eglGetCurrentDisplay(void) 1792{ 1793 // eglGetCurrentDisplay returns the current EGL display connection 1794 // for the current EGL rendering context, as specified by eglMakeCurrent. 1795 // If no context is current, EGL_NO_DISPLAY is returned. 1796 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1797 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1798 egl_context_t* c = egl_context_t::context(ctx); 1799 return c->dpy; 1800} 1801 1802EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1803 EGLint attribute, EGLint *value) 1804{ 1805 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1806 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1807 egl_context_t* c = egl_context_t::context(ctx); 1808 switch (attribute) { 1809 case EGL_CONFIG_ID: 1810 // Returns the ID of the EGL frame buffer configuration with 1811 // respect to which the context was created 1812 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1813 } 1814 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1815} 1816 1817EGLBoolean eglWaitGL(void) 1818{ 1819 return EGL_TRUE; 1820} 1821 1822EGLBoolean eglWaitNative(EGLint engine) 1823{ 1824 return EGL_TRUE; 1825} 1826 1827EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1828{ 1829 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1830 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1831 1832 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1833 if (!d->isValid()) 1834 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1835 if (d->dpy != dpy) 1836 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1837 1838 // post the surface 1839 d->swapBuffers(); 1840 1841 // if it's bound to a context, update the buffer 1842 if (d->ctx != EGL_NO_CONTEXT) { 1843 d->bindDrawSurface((ogles_context_t*)d->ctx); 1844 // if this surface is also the read surface of the context 1845 // it is bound to, make sure to update the read buffer as well. 1846 // The EGL spec is a little unclear about this. 1847 egl_context_t* c = egl_context_t::context(d->ctx); 1848 if (c->read == draw) { 1849 d->bindReadSurface((ogles_context_t*)d->ctx); 1850 } 1851 } 1852 1853 return EGL_TRUE; 1854} 1855 1856EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1857 NativePixmapType target) 1858{ 1859 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1860 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1861 // TODO: eglCopyBuffers() 1862 return EGL_FALSE; 1863} 1864 1865EGLint eglGetError(void) 1866{ 1867 return getError(); 1868} 1869 1870const char* eglQueryString(EGLDisplay dpy, EGLint name) 1871{ 1872 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1873 return setError(EGL_BAD_DISPLAY, (const char*)0); 1874 1875 switch (name) { 1876 case EGL_VENDOR: 1877 return gVendorString; 1878 case EGL_VERSION: 1879 return gVersionString; 1880 case EGL_EXTENSIONS: 1881 return gExtensionsString; 1882 case EGL_CLIENT_APIS: 1883 return gClientApiString; 1884 } 1885 return setError(EGL_BAD_PARAMETER, (const char *)0); 1886} 1887 1888// ---------------------------------------------------------------------------- 1889// EGL 1.1 1890// ---------------------------------------------------------------------------- 1891 1892EGLBoolean eglSurfaceAttrib( 1893 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1894{ 1895 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1896 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1897 // TODO: eglSurfaceAttrib() 1898 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1899} 1900 1901EGLBoolean eglBindTexImage( 1902 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1903{ 1904 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1905 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1906 // TODO: eglBindTexImage() 1907 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1908} 1909 1910EGLBoolean eglReleaseTexImage( 1911 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1912{ 1913 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1914 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1915 // TODO: eglReleaseTexImage() 1916 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1917} 1918 1919EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1920{ 1921 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1922 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1923 // TODO: eglSwapInterval() 1924 return EGL_TRUE; 1925} 1926 1927// ---------------------------------------------------------------------------- 1928// EGL 1.2 1929// ---------------------------------------------------------------------------- 1930 1931EGLBoolean eglBindAPI(EGLenum api) 1932{ 1933 if (api != EGL_OPENGL_ES_API) 1934 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1935 return EGL_TRUE; 1936} 1937 1938EGLenum eglQueryAPI(void) 1939{ 1940 return EGL_OPENGL_ES_API; 1941} 1942 1943EGLBoolean eglWaitClient(void) 1944{ 1945 glFinish(); 1946 return EGL_TRUE; 1947} 1948 1949EGLBoolean eglReleaseThread(void) 1950{ 1951 // TODO: eglReleaseThread() 1952 return EGL_TRUE; 1953} 1954 1955EGLSurface eglCreatePbufferFromClientBuffer( 1956 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 1957 EGLConfig config, const EGLint *attrib_list) 1958{ 1959 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1960 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1961 // TODO: eglCreatePbufferFromClientBuffer() 1962 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 1963} 1964 1965// ---------------------------------------------------------------------------- 1966// EGL_EGLEXT_VERSION 3 1967// ---------------------------------------------------------------------------- 1968 1969void (*eglGetProcAddress (const char *procname))() 1970{ 1971 extention_map_t const * const map = gExtentionMap; 1972 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 1973 if (!strcmp(procname, map[i].name)) { 1974 return map[i].address; 1975 } 1976 } 1977 return NULL; 1978} 1979 1980EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 1981 const EGLint *attrib_list) 1982{ 1983 EGLBoolean result = EGL_FALSE; 1984 return result; 1985} 1986 1987EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 1988{ 1989 EGLBoolean result = EGL_FALSE; 1990 return result; 1991} 1992 1993EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 1994 EGLClientBuffer buffer, const EGLint *attrib_list) 1995{ 1996 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 1997 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 1998 } 1999 if (ctx != EGL_NO_CONTEXT) { 2000 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2001 } 2002 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2003 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2004 } 2005 2006 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)buffer; 2007 2008 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2009 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2010 2011 if (native_buffer->common.version != sizeof(ANativeWindowBuffer)) 2012 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2013 2014 switch (native_buffer->format) { 2015 case HAL_PIXEL_FORMAT_RGBA_8888: 2016 case HAL_PIXEL_FORMAT_RGBX_8888: 2017 case HAL_PIXEL_FORMAT_RGB_888: 2018 case HAL_PIXEL_FORMAT_RGB_565: 2019 case HAL_PIXEL_FORMAT_BGRA_8888: 2020 case HAL_PIXEL_FORMAT_RGBA_5551: 2021 case HAL_PIXEL_FORMAT_RGBA_4444: 2022 break; 2023 default: 2024 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2025 } 2026 2027 native_buffer->common.incRef(&native_buffer->common); 2028 return (EGLImageKHR)native_buffer; 2029} 2030 2031EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2032{ 2033 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2034 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2035 } 2036 2037 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)img; 2038 2039 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2040 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2041 2042 if (native_buffer->common.version != sizeof(ANativeWindowBuffer)) 2043 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2044 2045 native_buffer->common.decRef(&native_buffer->common); 2046 2047 return EGL_TRUE; 2048} 2049 2050// ---------------------------------------------------------------------------- 2051// ANDROID extensions 2052// ---------------------------------------------------------------------------- 2053 2054EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2055 EGLint left, EGLint top, EGLint width, EGLint height) 2056{ 2057 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2058 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2059 2060 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2061 if (!d->isValid()) 2062 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2063 if (d->dpy != dpy) 2064 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2065 2066 // post the surface 2067 d->setSwapRectangle(left, top, width, height); 2068 2069 return EGL_TRUE; 2070} 2071