egl.cpp revision 83e7c8c431ec8b578b6f778811837632e3798768
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#include <ui/ANativeObjectBase.h> 34 35#include <EGL/egl.h> 36#include <EGL/eglext.h> 37#include <GLES/gl.h> 38#include <GLES/glext.h> 39 40#include <pixelflinger/format.h> 41#include <pixelflinger/pixelflinger.h> 42 43#include "context.h" 44#include "state.h" 45#include "texture.h" 46#include "matrix.h" 47 48#undef NELEM 49#define NELEM(x) (sizeof(x)/sizeof(*(x))) 50 51// ---------------------------------------------------------------------------- 52 53EGLBoolean EGLAPI eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 54 EGLint left, EGLint top, EGLint width, EGLint height); 55 56// ---------------------------------------------------------------------------- 57namespace android { 58 59// ---------------------------------------------------------------------------- 60 61const unsigned int NUM_DISPLAYS = 1; 62 63static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER; 64static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER; 65static pthread_key_t gEGLErrorKey = -1; 66#ifndef HAVE_ANDROID_OS 67namespace gl { 68pthread_key_t gGLKey = -1; 69}; // namespace gl 70#endif 71 72template<typename T> 73static T setError(GLint error, T returnValue) { 74 if (ggl_unlikely(gEGLErrorKey == -1)) { 75 pthread_mutex_lock(&gErrorKeyMutex); 76 if (gEGLErrorKey == -1) 77 pthread_key_create(&gEGLErrorKey, NULL); 78 pthread_mutex_unlock(&gErrorKeyMutex); 79 } 80 pthread_setspecific(gEGLErrorKey, (void*)error); 81 return returnValue; 82} 83 84static GLint getError() { 85 if (ggl_unlikely(gEGLErrorKey == -1)) 86 return EGL_SUCCESS; 87 GLint error = (GLint)pthread_getspecific(gEGLErrorKey); 88 if (error == 0) { 89 // The TLS key has been created by another thread, but the value for 90 // this thread has not been initialized. 91 return EGL_SUCCESS; 92 } 93 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS); 94 return error; 95} 96 97// ---------------------------------------------------------------------------- 98 99struct egl_display_t 100{ 101 egl_display_t() : type(0), initialized(0) { } 102 103 static egl_display_t& get_display(EGLDisplay dpy); 104 105 static EGLBoolean is_valid(EGLDisplay dpy) { 106 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE; 107 } 108 109 NativeDisplayType type; 110 volatile int32_t initialized; 111}; 112 113static egl_display_t gDisplays[NUM_DISPLAYS]; 114 115egl_display_t& egl_display_t::get_display(EGLDisplay dpy) { 116 return gDisplays[uintptr_t(dpy)-1U]; 117} 118 119struct egl_context_t { 120 enum { 121 IS_CURRENT = 0x00010000, 122 NEVER_CURRENT = 0x00020000 123 }; 124 uint32_t flags; 125 EGLDisplay dpy; 126 EGLConfig config; 127 EGLSurface read; 128 EGLSurface draw; 129 130 static inline egl_context_t* context(EGLContext ctx) { 131 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx); 132 return static_cast<egl_context_t*>(gl->rasterizer.base); 133 } 134}; 135 136// ---------------------------------------------------------------------------- 137 138struct egl_surface_t 139{ 140 enum { 141 PAGE_FLIP = 0x00000001, 142 MAGIC = 0x31415265 143 }; 144 145 uint32_t magic; 146 EGLDisplay dpy; 147 EGLConfig config; 148 EGLContext ctx; 149 150 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat); 151 virtual ~egl_surface_t(); 152 bool isValid() const; 153 virtual bool initCheck() const = 0; 154 155 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 156 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 157 virtual EGLBoolean connect() { return EGL_TRUE; } 158 virtual void disconnect() {} 159 virtual EGLint getWidth() const = 0; 160 virtual EGLint getHeight() const = 0; 161 162 virtual EGLint getHorizontalResolution() const; 163 virtual EGLint getVerticalResolution() const; 164 virtual EGLint getRefreshRate() const; 165 virtual EGLint getSwapBehavior() const; 166 virtual EGLBoolean swapBuffers(); 167 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 168protected: 169 GGLSurface depth; 170}; 171 172egl_surface_t::egl_surface_t(EGLDisplay dpy, 173 EGLConfig config, 174 int32_t depthFormat) 175 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 176{ 177 depth.version = sizeof(GGLSurface); 178 depth.data = 0; 179 depth.format = depthFormat; 180} 181egl_surface_t::~egl_surface_t() 182{ 183 magic = 0; 184 free(depth.data); 185} 186bool egl_surface_t::isValid() const { 187 ALOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this); 188 return magic == MAGIC; 189} 190 191EGLBoolean egl_surface_t::swapBuffers() { 192 return EGL_FALSE; 193} 194EGLint egl_surface_t::getHorizontalResolution() const { 195 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 196} 197EGLint egl_surface_t::getVerticalResolution() const { 198 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 199} 200EGLint egl_surface_t::getRefreshRate() const { 201 return (60 * EGL_DISPLAY_SCALING); 202} 203EGLint egl_surface_t::getSwapBehavior() const { 204 return EGL_BUFFER_PRESERVED; 205} 206EGLBoolean egl_surface_t::setSwapRectangle( 207 EGLint l, EGLint t, EGLint w, EGLint h) 208{ 209 return EGL_FALSE; 210} 211 212// ---------------------------------------------------------------------------- 213 214struct egl_window_surface_v2_t : public egl_surface_t 215{ 216 egl_window_surface_v2_t( 217 EGLDisplay dpy, EGLConfig config, 218 int32_t depthFormat, 219 ANativeWindow* window); 220 221 ~egl_window_surface_v2_t(); 222 223 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails 224 virtual EGLBoolean swapBuffers(); 225 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 226 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 227 virtual EGLBoolean connect(); 228 virtual void disconnect(); 229 virtual EGLint getWidth() const { return width; } 230 virtual EGLint getHeight() const { return height; } 231 virtual EGLint getHorizontalResolution() const; 232 virtual EGLint getVerticalResolution() const; 233 virtual EGLint getRefreshRate() const; 234 virtual EGLint getSwapBehavior() const; 235 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 236 237private: 238 status_t lock(ANativeWindowBuffer* buf, int usage, void** vaddr); 239 status_t unlock(ANativeWindowBuffer* buf); 240 ANativeWindow* nativeWindow; 241 ANativeWindowBuffer* buffer; 242 ANativeWindowBuffer* previousBuffer; 243 gralloc_module_t const* module; 244 int width; 245 int height; 246 void* bits; 247 GGLFormat const* pixelFormatTable; 248 249 struct Rect { 250 inline Rect() { }; 251 inline Rect(int32_t w, int32_t h) 252 : left(0), top(0), right(w), bottom(h) { } 253 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 254 : left(l), top(t), right(r), bottom(b) { } 255 Rect& andSelf(const Rect& r) { 256 left = max(left, r.left); 257 top = max(top, r.top); 258 right = min(right, r.right); 259 bottom = min(bottom, r.bottom); 260 return *this; 261 } 262 bool isEmpty() const { 263 return (left>=right || top>=bottom); 264 } 265 void dump(char const* what) { 266 ALOGD("%s { %5d, %5d, w=%5d, h=%5d }", 267 what, left, top, right-left, bottom-top); 268 } 269 270 int32_t left; 271 int32_t top; 272 int32_t right; 273 int32_t bottom; 274 }; 275 276 struct Region { 277 inline Region() : count(0) { } 278 typedef Rect const* const_iterator; 279 const_iterator begin() const { return storage; } 280 const_iterator end() const { return storage+count; } 281 static Region subtract(const Rect& lhs, const Rect& rhs) { 282 Region reg; 283 Rect* storage = reg.storage; 284 if (!lhs.isEmpty()) { 285 if (lhs.top < rhs.top) { // top rect 286 storage->left = lhs.left; 287 storage->top = lhs.top; 288 storage->right = lhs.right; 289 storage->bottom = rhs.top; 290 storage++; 291 } 292 const int32_t top = max(lhs.top, rhs.top); 293 const int32_t bot = min(lhs.bottom, rhs.bottom); 294 if (top < bot) { 295 if (lhs.left < rhs.left) { // left-side rect 296 storage->left = lhs.left; 297 storage->top = top; 298 storage->right = rhs.left; 299 storage->bottom = bot; 300 storage++; 301 } 302 if (lhs.right > rhs.right) { // right-side rect 303 storage->left = rhs.right; 304 storage->top = top; 305 storage->right = lhs.right; 306 storage->bottom = bot; 307 storage++; 308 } 309 } 310 if (lhs.bottom > rhs.bottom) { // bottom rect 311 storage->left = lhs.left; 312 storage->top = rhs.bottom; 313 storage->right = lhs.right; 314 storage->bottom = lhs.bottom; 315 storage++; 316 } 317 reg.count = storage - reg.storage; 318 } 319 return reg; 320 } 321 bool isEmpty() const { 322 return count<=0; 323 } 324 private: 325 Rect storage[4]; 326 ssize_t count; 327 }; 328 329 void copyBlt( 330 ANativeWindowBuffer* dst, void* dst_vaddr, 331 ANativeWindowBuffer* src, void const* src_vaddr, 332 const Region& clip); 333 334 Rect dirtyRegion; 335 Rect oldDirtyRegion; 336}; 337 338egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 339 EGLConfig config, 340 int32_t depthFormat, 341 ANativeWindow* window) 342 : egl_surface_t(dpy, config, depthFormat), 343 nativeWindow(window), buffer(0), previousBuffer(0), module(0), 344 bits(NULL) 345{ 346 hw_module_t const* pModule; 347 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 348 module = reinterpret_cast<gralloc_module_t const*>(pModule); 349 350 pixelFormatTable = gglGetPixelFormatTable(); 351 352 // keep a reference on the window 353 nativeWindow->common.incRef(&nativeWindow->common); 354 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width); 355 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height); 356} 357 358egl_window_surface_v2_t::~egl_window_surface_v2_t() { 359 if (buffer) { 360 buffer->common.decRef(&buffer->common); 361 } 362 if (previousBuffer) { 363 previousBuffer->common.decRef(&previousBuffer->common); 364 } 365 nativeWindow->common.decRef(&nativeWindow->common); 366} 367 368EGLBoolean egl_window_surface_v2_t::connect() 369{ 370 // we're intending to do software rendering 371 native_window_set_usage(nativeWindow, 372 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); 373 374 // dequeue a buffer 375 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) { 376 return setError(EGL_BAD_ALLOC, EGL_FALSE); 377 } 378 379 // allocate a corresponding depth-buffer 380 width = buffer->width; 381 height = buffer->height; 382 if (depth.format) { 383 depth.width = width; 384 depth.height = height; 385 depth.stride = depth.width; // use the width here 386 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 387 if (depth.data == 0) { 388 return setError(EGL_BAD_ALLOC, EGL_FALSE); 389 } 390 } 391 392 // keep a reference on the buffer 393 buffer->common.incRef(&buffer->common); 394 395 // Lock the buffer 396 nativeWindow->lockBuffer(nativeWindow, buffer); 397 // pin the buffer down 398 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 399 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 400 ALOGE("connect() failed to lock buffer %p (%ux%u)", 401 buffer, buffer->width, buffer->height); 402 return setError(EGL_BAD_ACCESS, EGL_FALSE); 403 // FIXME: we should make sure we're not accessing the buffer anymore 404 } 405 return EGL_TRUE; 406} 407 408void egl_window_surface_v2_t::disconnect() 409{ 410 if (buffer && bits) { 411 bits = NULL; 412 unlock(buffer); 413 } 414 // enqueue the last frame 415 nativeWindow->queueBuffer(nativeWindow, buffer); 416 if (buffer) { 417 buffer->common.decRef(&buffer->common); 418 buffer = 0; 419 } 420 if (previousBuffer) { 421 previousBuffer->common.decRef(&previousBuffer->common); 422 previousBuffer = 0; 423 } 424} 425 426status_t egl_window_surface_v2_t::lock( 427 ANativeWindowBuffer* buf, int usage, void** vaddr) 428{ 429 int err; 430 431 err = module->lock(module, buf->handle, 432 usage, 0, 0, buf->width, buf->height, vaddr); 433 434 return err; 435} 436 437status_t egl_window_surface_v2_t::unlock(ANativeWindowBuffer* buf) 438{ 439 if (!buf) return BAD_VALUE; 440 int err = NO_ERROR; 441 442 err = module->unlock(module, buf->handle); 443 444 return err; 445} 446 447void egl_window_surface_v2_t::copyBlt( 448 ANativeWindowBuffer* dst, void* dst_vaddr, 449 ANativeWindowBuffer* src, void const* src_vaddr, 450 const Region& clip) 451{ 452 // NOTE: dst and src must be the same format 453 454 Region::const_iterator cur = clip.begin(); 455 Region::const_iterator end = clip.end(); 456 457 const size_t bpp = pixelFormatTable[src->format].size; 458 const size_t dbpr = dst->stride * bpp; 459 const size_t sbpr = src->stride * bpp; 460 461 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 462 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 463 464 while (cur != end) { 465 const Rect& r(*cur++); 466 ssize_t w = r.right - r.left; 467 ssize_t h = r.bottom - r.top; 468 if (w <= 0 || h<=0) continue; 469 size_t size = w * bpp; 470 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 471 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 472 if (dbpr==sbpr && size==sbpr) { 473 size *= h; 474 h = 1; 475 } 476 do { 477 memcpy(d, s, size); 478 d += dbpr; 479 s += sbpr; 480 } while (--h > 0); 481 } 482} 483 484EGLBoolean egl_window_surface_v2_t::swapBuffers() 485{ 486 if (!buffer) { 487 return setError(EGL_BAD_ACCESS, EGL_FALSE); 488 } 489 490 /* 491 * Handle eglSetSwapRectangleANDROID() 492 * We copyback from the front buffer 493 */ 494 if (!dirtyRegion.isEmpty()) { 495 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 496 if (previousBuffer) { 497 // This was const Region copyBack, but that causes an 498 // internal compile error on simulator builds 499 /*const*/ Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 500 if (!copyBack.isEmpty()) { 501 void* prevBits; 502 if (lock(previousBuffer, 503 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 504 // copy from previousBuffer to buffer 505 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 506 unlock(previousBuffer); 507 } 508 } 509 } 510 oldDirtyRegion = dirtyRegion; 511 } 512 513 if (previousBuffer) { 514 previousBuffer->common.decRef(&previousBuffer->common); 515 previousBuffer = 0; 516 } 517 518 unlock(buffer); 519 previousBuffer = buffer; 520 nativeWindow->queueBuffer(nativeWindow, buffer); 521 buffer = 0; 522 523 // dequeue a new buffer 524 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) { 525 526 // TODO: lockBuffer should rather be executed when the very first 527 // direct rendering occurs. 528 nativeWindow->lockBuffer(nativeWindow, buffer); 529 530 // reallocate the depth-buffer if needed 531 if ((width != buffer->width) || (height != buffer->height)) { 532 // TODO: we probably should reset the swap rect here 533 // if the window size has changed 534 width = buffer->width; 535 height = buffer->height; 536 if (depth.data) { 537 free(depth.data); 538 depth.width = width; 539 depth.height = height; 540 depth.stride = buffer->stride; 541 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 542 if (depth.data == 0) { 543 setError(EGL_BAD_ALLOC, EGL_FALSE); 544 return EGL_FALSE; 545 } 546 } 547 } 548 549 // keep a reference on the buffer 550 buffer->common.incRef(&buffer->common); 551 552 // finally pin the buffer down 553 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 554 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 555 ALOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 556 buffer, buffer->width, buffer->height); 557 return setError(EGL_BAD_ACCESS, EGL_FALSE); 558 // FIXME: we should make sure we're not accessing the buffer anymore 559 } 560 } else { 561 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE); 562 } 563 564 return EGL_TRUE; 565} 566 567EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 568 EGLint l, EGLint t, EGLint w, EGLint h) 569{ 570 dirtyRegion = Rect(l, t, l+w, t+h); 571 return EGL_TRUE; 572} 573 574EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 575{ 576 GGLSurface buffer; 577 buffer.version = sizeof(GGLSurface); 578 buffer.width = this->buffer->width; 579 buffer.height = this->buffer->height; 580 buffer.stride = this->buffer->stride; 581 buffer.data = (GGLubyte*)bits; 582 buffer.format = this->buffer->format; 583 gl->rasterizer.procs.colorBuffer(gl, &buffer); 584 if (depth.data != gl->rasterizer.state.buffers.depth.data) 585 gl->rasterizer.procs.depthBuffer(gl, &depth); 586 587 return EGL_TRUE; 588} 589EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 590{ 591 GGLSurface buffer; 592 buffer.version = sizeof(GGLSurface); 593 buffer.width = this->buffer->width; 594 buffer.height = this->buffer->height; 595 buffer.stride = this->buffer->stride; 596 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 597 buffer.format = this->buffer->format; 598 gl->rasterizer.procs.readBuffer(gl, &buffer); 599 return EGL_TRUE; 600} 601EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 602 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 603} 604EGLint egl_window_surface_v2_t::getVerticalResolution() const { 605 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 606} 607EGLint egl_window_surface_v2_t::getRefreshRate() const { 608 return (60 * EGL_DISPLAY_SCALING); // FIXME 609} 610EGLint egl_window_surface_v2_t::getSwapBehavior() const 611{ 612 /* 613 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 614 * the content of the swapped buffer. 615 * 616 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 617 * 618 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 619 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 620 * is, everything outside of this area is preserved. 621 * 622 * This implementation of EGL assumes the later case. 623 * 624 */ 625 626 return EGL_BUFFER_DESTROYED; 627} 628 629// ---------------------------------------------------------------------------- 630 631struct egl_pixmap_surface_t : public egl_surface_t 632{ 633 egl_pixmap_surface_t( 634 EGLDisplay dpy, EGLConfig config, 635 int32_t depthFormat, 636 egl_native_pixmap_t const * pixmap); 637 638 virtual ~egl_pixmap_surface_t() { } 639 640 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 641 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 642 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 643 virtual EGLint getWidth() const { return nativePixmap.width; } 644 virtual EGLint getHeight() const { return nativePixmap.height; } 645private: 646 egl_native_pixmap_t nativePixmap; 647}; 648 649egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 650 EGLConfig config, 651 int32_t depthFormat, 652 egl_native_pixmap_t const * pixmap) 653 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 654{ 655 if (depthFormat) { 656 depth.width = pixmap->width; 657 depth.height = pixmap->height; 658 depth.stride = depth.width; // use the width here 659 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 660 if (depth.data == 0) { 661 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 662 } 663 } 664} 665EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 666{ 667 GGLSurface buffer; 668 buffer.version = sizeof(GGLSurface); 669 buffer.width = nativePixmap.width; 670 buffer.height = nativePixmap.height; 671 buffer.stride = nativePixmap.stride; 672 buffer.data = nativePixmap.data; 673 buffer.format = nativePixmap.format; 674 675 gl->rasterizer.procs.colorBuffer(gl, &buffer); 676 if (depth.data != gl->rasterizer.state.buffers.depth.data) 677 gl->rasterizer.procs.depthBuffer(gl, &depth); 678 return EGL_TRUE; 679} 680EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 681{ 682 GGLSurface buffer; 683 buffer.version = sizeof(GGLSurface); 684 buffer.width = nativePixmap.width; 685 buffer.height = nativePixmap.height; 686 buffer.stride = nativePixmap.stride; 687 buffer.data = nativePixmap.data; 688 buffer.format = nativePixmap.format; 689 gl->rasterizer.procs.readBuffer(gl, &buffer); 690 return EGL_TRUE; 691} 692 693// ---------------------------------------------------------------------------- 694 695struct egl_pbuffer_surface_t : public egl_surface_t 696{ 697 egl_pbuffer_surface_t( 698 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 699 int32_t w, int32_t h, int32_t f); 700 701 virtual ~egl_pbuffer_surface_t(); 702 703 virtual bool initCheck() const { return pbuffer.data != 0; } 704 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 705 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 706 virtual EGLint getWidth() const { return pbuffer.width; } 707 virtual EGLint getHeight() const { return pbuffer.height; } 708private: 709 GGLSurface pbuffer; 710}; 711 712egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 713 EGLConfig config, int32_t depthFormat, 714 int32_t w, int32_t h, int32_t f) 715 : egl_surface_t(dpy, config, depthFormat) 716{ 717 size_t size = w*h; 718 switch (f) { 719 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 720 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 721 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 722 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break; 723 default: 724 ALOGE("incompatible pixel format for pbuffer (format=%d)", f); 725 pbuffer.data = 0; 726 break; 727 } 728 pbuffer.version = sizeof(GGLSurface); 729 pbuffer.width = w; 730 pbuffer.height = h; 731 pbuffer.stride = w; 732 pbuffer.data = (GGLubyte*)malloc(size); 733 pbuffer.format = f; 734 735 if (depthFormat) { 736 depth.width = pbuffer.width; 737 depth.height = pbuffer.height; 738 depth.stride = depth.width; // use the width here 739 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 740 if (depth.data == 0) { 741 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 742 return; 743 } 744 } 745} 746egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 747 free(pbuffer.data); 748} 749EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 750{ 751 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 752 if (depth.data != gl->rasterizer.state.buffers.depth.data) 753 gl->rasterizer.procs.depthBuffer(gl, &depth); 754 return EGL_TRUE; 755} 756EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 757{ 758 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 759 return EGL_TRUE; 760} 761 762// ---------------------------------------------------------------------------- 763 764struct config_pair_t { 765 GLint key; 766 GLint value; 767}; 768 769struct configs_t { 770 const config_pair_t* array; 771 int size; 772}; 773 774struct config_management_t { 775 GLint key; 776 bool (*match)(GLint reqValue, GLint confValue); 777 static bool atLeast(GLint reqValue, GLint confValue) { 778 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 779 } 780 static bool exact(GLint reqValue, GLint confValue) { 781 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 782 } 783 static bool mask(GLint reqValue, GLint confValue) { 784 return (confValue & reqValue) == reqValue; 785 } 786 static bool ignore(GLint reqValue, GLint confValue) { 787 return true; 788 } 789}; 790 791// ---------------------------------------------------------------------------- 792 793#define VERSION_MAJOR 1 794#define VERSION_MINOR 2 795static char const * const gVendorString = "Google Inc."; 796static char const * const gVersionString = "1.2 Android Driver 1.2.0"; 797static char const * const gClientApiString = "OpenGL_ES"; 798static char const * const gExtensionsString = 799 "EGL_KHR_fence_sync " 800 "EGL_KHR_image_base " 801 // "KHR_image_pixmap " 802 "EGL_ANDROID_image_native_buffer " 803 "EGL_ANDROID_swap_rectangle " 804 ; 805 806// ---------------------------------------------------------------------------- 807 808struct extention_map_t { 809 const char * const name; 810 __eglMustCastToProperFunctionPointerType address; 811}; 812 813static const extention_map_t gExtentionMap[] = { 814 { "glDrawTexsOES", 815 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 816 { "glDrawTexiOES", 817 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 818 { "glDrawTexfOES", 819 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 820 { "glDrawTexxOES", 821 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 822 { "glDrawTexsvOES", 823 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 824 { "glDrawTexivOES", 825 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 826 { "glDrawTexfvOES", 827 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 828 { "glDrawTexxvOES", 829 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 830 { "glQueryMatrixxOES", 831 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 832 { "glEGLImageTargetTexture2DOES", 833 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 834 { "glEGLImageTargetRenderbufferStorageOES", 835 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 836 { "glClipPlanef", 837 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 838 { "glClipPlanex", 839 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 840 { "glBindBuffer", 841 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 842 { "glBufferData", 843 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 844 { "glBufferSubData", 845 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 846 { "glDeleteBuffers", 847 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 848 { "glGenBuffers", 849 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 850 { "eglCreateImageKHR", 851 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 852 { "eglDestroyImageKHR", 853 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 854 { "eglCreateSyncKHR", 855 (__eglMustCastToProperFunctionPointerType)&eglCreateSyncKHR }, 856 { "eglDestroySyncKHR", 857 (__eglMustCastToProperFunctionPointerType)&eglDestroySyncKHR }, 858 { "eglClientWaitSyncKHR", 859 (__eglMustCastToProperFunctionPointerType)&eglClientWaitSyncKHR }, 860 { "eglGetSyncAttribKHR", 861 (__eglMustCastToProperFunctionPointerType)&eglGetSyncAttribKHR }, 862 { "eglSetSwapRectangleANDROID", 863 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 864}; 865 866/* 867 * In the lists below, attributes names MUST be sorted. 868 * Additionally, all configs must be sorted according to 869 * the EGL specification. 870 */ 871 872static config_pair_t const config_base_attribute_list[] = { 873 { EGL_STENCIL_SIZE, 0 }, 874 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 875 { EGL_LEVEL, 0 }, 876 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 877 { EGL_MAX_PBUFFER_PIXELS, 878 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 879 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 880 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 881 { EGL_NATIVE_VISUAL_ID, 0 }, 882 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 883 { EGL_SAMPLES, 0 }, 884 { EGL_SAMPLE_BUFFERS, 0 }, 885 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 886 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 887 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 888 { EGL_TRANSPARENT_RED_VALUE, 0 }, 889 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 890 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 891 { EGL_MIN_SWAP_INTERVAL, 1 }, 892 { EGL_MAX_SWAP_INTERVAL, 1 }, 893 { EGL_LUMINANCE_SIZE, 0 }, 894 { EGL_ALPHA_MASK_SIZE, 0 }, 895 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER }, 896 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 897 { EGL_CONFORMANT, 0 } 898}; 899 900// These configs can override the base attribute list 901// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 902 903// 565 configs 904static config_pair_t const config_0_attribute_list[] = { 905 { EGL_BUFFER_SIZE, 16 }, 906 { EGL_ALPHA_SIZE, 0 }, 907 { EGL_BLUE_SIZE, 5 }, 908 { EGL_GREEN_SIZE, 6 }, 909 { EGL_RED_SIZE, 5 }, 910 { EGL_DEPTH_SIZE, 0 }, 911 { EGL_CONFIG_ID, 0 }, 912 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 913 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 914}; 915 916static config_pair_t const config_1_attribute_list[] = { 917 { EGL_BUFFER_SIZE, 16 }, 918 { EGL_ALPHA_SIZE, 0 }, 919 { EGL_BLUE_SIZE, 5 }, 920 { EGL_GREEN_SIZE, 6 }, 921 { EGL_RED_SIZE, 5 }, 922 { EGL_DEPTH_SIZE, 16 }, 923 { EGL_CONFIG_ID, 1 }, 924 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 925 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 926}; 927 928// RGB 888 configs 929static config_pair_t const config_2_attribute_list[] = { 930 { EGL_BUFFER_SIZE, 32 }, 931 { EGL_ALPHA_SIZE, 0 }, 932 { EGL_BLUE_SIZE, 8 }, 933 { EGL_GREEN_SIZE, 8 }, 934 { EGL_RED_SIZE, 8 }, 935 { EGL_DEPTH_SIZE, 0 }, 936 { EGL_CONFIG_ID, 6 }, 937 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 938 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 939}; 940 941static config_pair_t const config_3_attribute_list[] = { 942 { EGL_BUFFER_SIZE, 32 }, 943 { EGL_ALPHA_SIZE, 0 }, 944 { EGL_BLUE_SIZE, 8 }, 945 { EGL_GREEN_SIZE, 8 }, 946 { EGL_RED_SIZE, 8 }, 947 { EGL_DEPTH_SIZE, 16 }, 948 { EGL_CONFIG_ID, 7 }, 949 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 950 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 951}; 952 953// 8888 configs 954static config_pair_t const config_4_attribute_list[] = { 955 { EGL_BUFFER_SIZE, 32 }, 956 { EGL_ALPHA_SIZE, 8 }, 957 { EGL_BLUE_SIZE, 8 }, 958 { EGL_GREEN_SIZE, 8 }, 959 { EGL_RED_SIZE, 8 }, 960 { EGL_DEPTH_SIZE, 0 }, 961 { EGL_CONFIG_ID, 2 }, 962 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 963 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 964}; 965 966static config_pair_t const config_5_attribute_list[] = { 967 { EGL_BUFFER_SIZE, 32 }, 968 { EGL_ALPHA_SIZE, 8 }, 969 { EGL_BLUE_SIZE, 8 }, 970 { EGL_GREEN_SIZE, 8 }, 971 { EGL_RED_SIZE, 8 }, 972 { EGL_DEPTH_SIZE, 16 }, 973 { EGL_CONFIG_ID, 3 }, 974 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 975 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 976}; 977 978// A8 configs 979static config_pair_t const config_6_attribute_list[] = { 980 { EGL_BUFFER_SIZE, 8 }, 981 { EGL_ALPHA_SIZE, 8 }, 982 { EGL_BLUE_SIZE, 0 }, 983 { EGL_GREEN_SIZE, 0 }, 984 { EGL_RED_SIZE, 0 }, 985 { EGL_DEPTH_SIZE, 0 }, 986 { EGL_CONFIG_ID, 4 }, 987 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 988 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 989}; 990 991static config_pair_t const config_7_attribute_list[] = { 992 { EGL_BUFFER_SIZE, 8 }, 993 { EGL_ALPHA_SIZE, 8 }, 994 { EGL_BLUE_SIZE, 0 }, 995 { EGL_GREEN_SIZE, 0 }, 996 { EGL_RED_SIZE, 0 }, 997 { EGL_DEPTH_SIZE, 16 }, 998 { EGL_CONFIG_ID, 5 }, 999 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 1000 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1001}; 1002 1003static configs_t const gConfigs[] = { 1004 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 1005 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 1006 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 1007 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 1008 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 1009 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 1010 { config_6_attribute_list, NELEM(config_6_attribute_list) }, 1011 { config_7_attribute_list, NELEM(config_7_attribute_list) }, 1012}; 1013 1014static config_management_t const gConfigManagement[] = { 1015 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 1016 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1017 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1018 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1019 { EGL_RED_SIZE, config_management_t::atLeast }, 1020 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1021 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1022 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1023 { EGL_CONFIG_ID, config_management_t::exact }, 1024 { EGL_LEVEL, config_management_t::exact }, 1025 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::ignore }, 1026 { EGL_MAX_PBUFFER_PIXELS, config_management_t::ignore }, 1027 { EGL_MAX_PBUFFER_WIDTH, config_management_t::ignore }, 1028 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1029 { EGL_NATIVE_VISUAL_ID, config_management_t::ignore }, 1030 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1031 { EGL_SAMPLES, config_management_t::exact }, 1032 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1033 { EGL_SURFACE_TYPE, config_management_t::mask }, 1034 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1035 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1036 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1037 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1038 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1039 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1040 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1041 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1042 { EGL_LUMINANCE_SIZE, config_management_t::atLeast }, 1043 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast }, 1044 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact }, 1045 { EGL_RENDERABLE_TYPE, config_management_t::mask }, 1046 { EGL_CONFORMANT, config_management_t::mask } 1047}; 1048 1049 1050static config_pair_t const config_defaults[] = { 1051 // attributes that are not specified are simply ignored, if a particular 1052 // one needs not be ignored, it must be specified here, eg: 1053 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1054}; 1055 1056// ---------------------------------------------------------------------------- 1057 1058static status_t getConfigFormatInfo(EGLint configID, 1059 int32_t& pixelFormat, int32_t& depthFormat) 1060{ 1061 switch(configID) { 1062 case 0: 1063 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1064 depthFormat = 0; 1065 break; 1066 case 1: 1067 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1068 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1069 break; 1070 case 2: 1071 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1072 depthFormat = 0; 1073 break; 1074 case 3: 1075 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1076 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1077 break; 1078 case 4: 1079 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1080 depthFormat = 0; 1081 break; 1082 case 5: 1083 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1084 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1085 break; 1086 case 6: 1087 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1088 depthFormat = 0; 1089 break; 1090 case 7: 1091 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1092 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1093 break; 1094 default: 1095 return NAME_NOT_FOUND; 1096 } 1097 return NO_ERROR; 1098} 1099 1100// ---------------------------------------------------------------------------- 1101 1102template<typename T> 1103static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1104{ 1105 while (first <= last) { 1106 int mid = (first + last) / 2; 1107 if (key > sortedArray[mid].key) { 1108 first = mid + 1; 1109 } else if (key < sortedArray[mid].key) { 1110 last = mid - 1; 1111 } else { 1112 return mid; 1113 } 1114 } 1115 return -1; 1116} 1117 1118static int isAttributeMatching(int i, EGLint attr, EGLint val) 1119{ 1120 // look for the attribute in all of our configs 1121 config_pair_t const* configFound = gConfigs[i].array; 1122 int index = binarySearch<config_pair_t>( 1123 gConfigs[i].array, 1124 0, gConfigs[i].size-1, 1125 attr); 1126 if (index < 0) { 1127 configFound = config_base_attribute_list; 1128 index = binarySearch<config_pair_t>( 1129 config_base_attribute_list, 1130 0, NELEM(config_base_attribute_list)-1, 1131 attr); 1132 } 1133 if (index >= 0) { 1134 // attribute found, check if this config could match 1135 int cfgMgtIndex = binarySearch<config_management_t>( 1136 gConfigManagement, 1137 0, NELEM(gConfigManagement)-1, 1138 attr); 1139 if (cfgMgtIndex >= 0) { 1140 bool match = gConfigManagement[cfgMgtIndex].match( 1141 val, configFound[index].value); 1142 if (match) { 1143 // this config matches 1144 return 1; 1145 } 1146 } else { 1147 // attribute not found. this should NEVER happen. 1148 } 1149 } else { 1150 // error, this attribute doesn't exist 1151 } 1152 return 0; 1153} 1154 1155static int makeCurrent(ogles_context_t* gl) 1156{ 1157 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1158 if (gl) { 1159 egl_context_t* c = egl_context_t::context(gl); 1160 if (c->flags & egl_context_t::IS_CURRENT) { 1161 if (current != gl) { 1162 // it is an error to set a context current, if it's already 1163 // current to another thread 1164 return -1; 1165 } 1166 } else { 1167 if (current) { 1168 // mark the current context as not current, and flush 1169 glFlush(); 1170 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1171 } 1172 } 1173 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1174 // The context is not current, make it current! 1175 setGlThreadSpecific(gl); 1176 c->flags |= egl_context_t::IS_CURRENT; 1177 } 1178 } else { 1179 if (current) { 1180 // mark the current context as not current, and flush 1181 glFlush(); 1182 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1183 } 1184 // this thread has no context attached to it 1185 setGlThreadSpecific(0); 1186 } 1187 return 0; 1188} 1189 1190static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1191 EGLint attribute, EGLint *value) 1192{ 1193 size_t numConfigs = NELEM(gConfigs); 1194 int index = (int)config; 1195 if (uint32_t(index) >= numConfigs) 1196 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1197 1198 int attrIndex; 1199 attrIndex = binarySearch<config_pair_t>( 1200 gConfigs[index].array, 1201 0, gConfigs[index].size-1, 1202 attribute); 1203 if (attrIndex>=0) { 1204 *value = gConfigs[index].array[attrIndex].value; 1205 return EGL_TRUE; 1206 } 1207 1208 attrIndex = binarySearch<config_pair_t>( 1209 config_base_attribute_list, 1210 0, NELEM(config_base_attribute_list)-1, 1211 attribute); 1212 if (attrIndex>=0) { 1213 *value = config_base_attribute_list[attrIndex].value; 1214 return EGL_TRUE; 1215 } 1216 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1217} 1218 1219static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1220 NativeWindowType window, const EGLint *attrib_list) 1221{ 1222 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1223 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1224 if (window == 0) 1225 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1226 1227 EGLint surfaceType; 1228 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1229 return EGL_FALSE; 1230 1231 if (!(surfaceType & EGL_WINDOW_BIT)) 1232 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1233 1234 if (static_cast<ANativeWindow*>(window)->common.magic != 1235 ANDROID_NATIVE_WINDOW_MAGIC) { 1236 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1237 } 1238 1239 EGLint configID; 1240 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1241 return EGL_FALSE; 1242 1243 int32_t depthFormat; 1244 int32_t pixelFormat; 1245 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1246 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1247 } 1248 1249 // FIXME: we don't have access to the pixelFormat here just yet. 1250 // (it's possible that the surface is not fully initialized) 1251 // maybe this should be done after the page-flip 1252 //if (EGLint(info.format) != pixelFormat) 1253 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1254 1255 egl_surface_t* surface; 1256 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1257 static_cast<ANativeWindow*>(window)); 1258 1259 if (!surface->initCheck()) { 1260 // there was a problem in the ctor, the error 1261 // flag has been set. 1262 delete surface; 1263 surface = 0; 1264 } 1265 return surface; 1266} 1267 1268static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1269 NativePixmapType pixmap, const EGLint *attrib_list) 1270{ 1271 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1272 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1273 if (pixmap == 0) 1274 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1275 1276 EGLint surfaceType; 1277 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1278 return EGL_FALSE; 1279 1280 if (!(surfaceType & EGL_PIXMAP_BIT)) 1281 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1282 1283 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1284 sizeof(egl_native_pixmap_t)) { 1285 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1286 } 1287 1288 EGLint configID; 1289 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1290 return EGL_FALSE; 1291 1292 int32_t depthFormat; 1293 int32_t pixelFormat; 1294 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1295 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1296 } 1297 1298 if (pixmap->format != pixelFormat) 1299 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1300 1301 egl_surface_t* surface = 1302 new egl_pixmap_surface_t(dpy, config, depthFormat, 1303 static_cast<egl_native_pixmap_t*>(pixmap)); 1304 1305 if (!surface->initCheck()) { 1306 // there was a problem in the ctor, the error 1307 // flag has been set. 1308 delete surface; 1309 surface = 0; 1310 } 1311 return surface; 1312} 1313 1314static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1315 const EGLint *attrib_list) 1316{ 1317 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1318 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1319 1320 EGLint surfaceType; 1321 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1322 return EGL_FALSE; 1323 1324 if (!(surfaceType & EGL_PBUFFER_BIT)) 1325 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1326 1327 EGLint configID; 1328 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1329 return EGL_FALSE; 1330 1331 int32_t depthFormat; 1332 int32_t pixelFormat; 1333 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1334 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1335 } 1336 1337 int32_t w = 0; 1338 int32_t h = 0; 1339 while (attrib_list[0]) { 1340 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1341 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1342 attrib_list+=2; 1343 } 1344 1345 egl_surface_t* surface = 1346 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1347 1348 if (!surface->initCheck()) { 1349 // there was a problem in the ctor, the error 1350 // flag has been set. 1351 delete surface; 1352 surface = 0; 1353 } 1354 return surface; 1355} 1356 1357// ---------------------------------------------------------------------------- 1358}; // namespace android 1359// ---------------------------------------------------------------------------- 1360 1361using namespace android; 1362 1363// ---------------------------------------------------------------------------- 1364// Initialization 1365// ---------------------------------------------------------------------------- 1366 1367EGLDisplay eglGetDisplay(NativeDisplayType display) 1368{ 1369#ifndef HAVE_ANDROID_OS 1370 // this just needs to be done once 1371 if (gGLKey == -1) { 1372 pthread_mutex_lock(&gInitMutex); 1373 if (gGLKey == -1) 1374 pthread_key_create(&gGLKey, NULL); 1375 pthread_mutex_unlock(&gInitMutex); 1376 } 1377#endif 1378 if (display == EGL_DEFAULT_DISPLAY) { 1379 EGLDisplay dpy = (EGLDisplay)1; 1380 egl_display_t& d = egl_display_t::get_display(dpy); 1381 d.type = display; 1382 return dpy; 1383 } 1384 return EGL_NO_DISPLAY; 1385} 1386 1387EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1388{ 1389 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1390 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1391 1392 EGLBoolean res = EGL_TRUE; 1393 egl_display_t& d = egl_display_t::get_display(dpy); 1394 1395 if (android_atomic_inc(&d.initialized) == 0) { 1396 // initialize stuff here if needed 1397 //pthread_mutex_lock(&gInitMutex); 1398 //pthread_mutex_unlock(&gInitMutex); 1399 } 1400 1401 if (res == EGL_TRUE) { 1402 if (major != NULL) *major = VERSION_MAJOR; 1403 if (minor != NULL) *minor = VERSION_MINOR; 1404 } 1405 return res; 1406} 1407 1408EGLBoolean eglTerminate(EGLDisplay dpy) 1409{ 1410 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1411 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1412 1413 EGLBoolean res = EGL_TRUE; 1414 egl_display_t& d = egl_display_t::get_display(dpy); 1415 if (android_atomic_dec(&d.initialized) == 1) { 1416 // TODO: destroy all resources (surfaces, contexts, etc...) 1417 //pthread_mutex_lock(&gInitMutex); 1418 //pthread_mutex_unlock(&gInitMutex); 1419 } 1420 return res; 1421} 1422 1423// ---------------------------------------------------------------------------- 1424// configuration 1425// ---------------------------------------------------------------------------- 1426 1427EGLBoolean eglGetConfigs( EGLDisplay dpy, 1428 EGLConfig *configs, 1429 EGLint config_size, EGLint *num_config) 1430{ 1431 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1432 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1433 1434 GLint numConfigs = NELEM(gConfigs); 1435 if (!configs) { 1436 *num_config = numConfigs; 1437 return EGL_TRUE; 1438 } 1439 GLint i; 1440 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1441 *configs++ = (EGLConfig)i; 1442 } 1443 *num_config = i; 1444 return EGL_TRUE; 1445} 1446 1447EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1448 EGLConfig *configs, EGLint config_size, 1449 EGLint *num_config) 1450{ 1451 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1452 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1453 1454 if (ggl_unlikely(num_config==0)) { 1455 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1456 } 1457 1458 if (ggl_unlikely(attrib_list==0)) { 1459 /* 1460 * A NULL attrib_list should be treated as though it was an empty 1461 * one (terminated with EGL_NONE) as defined in 1462 * section 3.4.1 "Querying Configurations" in the EGL specification. 1463 */ 1464 static const EGLint dummy = EGL_NONE; 1465 attrib_list = &dummy; 1466 } 1467 1468 int numAttributes = 0; 1469 int numConfigs = NELEM(gConfigs); 1470 uint32_t possibleMatch = (1<<numConfigs)-1; 1471 while(possibleMatch && *attrib_list != EGL_NONE) { 1472 numAttributes++; 1473 EGLint attr = *attrib_list++; 1474 EGLint val = *attrib_list++; 1475 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1476 if (!(possibleMatch & (1<<i))) 1477 continue; 1478 if (isAttributeMatching(i, attr, val) == 0) { 1479 possibleMatch &= ~(1<<i); 1480 } 1481 } 1482 } 1483 1484 // now, handle the attributes which have a useful default value 1485 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) { 1486 // see if this attribute was specified, if not, apply its 1487 // default value 1488 if (binarySearch<config_pair_t>( 1489 (config_pair_t const*)attrib_list, 1490 0, numAttributes-1, 1491 config_defaults[j].key) < 0) 1492 { 1493 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1494 if (!(possibleMatch & (1<<i))) 1495 continue; 1496 if (isAttributeMatching(i, 1497 config_defaults[j].key, 1498 config_defaults[j].value) == 0) 1499 { 1500 possibleMatch &= ~(1<<i); 1501 } 1502 } 1503 } 1504 } 1505 1506 // return the configurations found 1507 int n=0; 1508 if (possibleMatch) { 1509 if (configs) { 1510 for (int i=0 ; config_size && i<numConfigs ; i++) { 1511 if (possibleMatch & (1<<i)) { 1512 *configs++ = (EGLConfig)i; 1513 config_size--; 1514 n++; 1515 } 1516 } 1517 } else { 1518 for (int i=0 ; i<numConfigs ; i++) { 1519 if (possibleMatch & (1<<i)) { 1520 n++; 1521 } 1522 } 1523 } 1524 } 1525 *num_config = n; 1526 return EGL_TRUE; 1527} 1528 1529EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1530 EGLint attribute, EGLint *value) 1531{ 1532 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1533 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1534 1535 return getConfigAttrib(dpy, config, attribute, value); 1536} 1537 1538// ---------------------------------------------------------------------------- 1539// surfaces 1540// ---------------------------------------------------------------------------- 1541 1542EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1543 NativeWindowType window, 1544 const EGLint *attrib_list) 1545{ 1546 return createWindowSurface(dpy, config, window, attrib_list); 1547} 1548 1549EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1550 NativePixmapType pixmap, 1551 const EGLint *attrib_list) 1552{ 1553 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1554} 1555 1556EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1557 const EGLint *attrib_list) 1558{ 1559 return createPbufferSurface(dpy, config, attrib_list); 1560} 1561 1562EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1563{ 1564 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1565 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1566 if (eglSurface != EGL_NO_SURFACE) { 1567 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1568 if (!surface->isValid()) 1569 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1570 if (surface->dpy != dpy) 1571 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1572 if (surface->ctx) { 1573 // FIXME: this surface is current check what the spec says 1574 surface->disconnect(); 1575 surface->ctx = 0; 1576 } 1577 delete surface; 1578 } 1579 return EGL_TRUE; 1580} 1581 1582EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1583 EGLint attribute, EGLint *value) 1584{ 1585 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1586 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1587 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1588 if (!surface->isValid()) 1589 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1590 if (surface->dpy != dpy) 1591 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1592 1593 EGLBoolean ret = EGL_TRUE; 1594 switch (attribute) { 1595 case EGL_CONFIG_ID: 1596 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1597 break; 1598 case EGL_WIDTH: 1599 *value = surface->getWidth(); 1600 break; 1601 case EGL_HEIGHT: 1602 *value = surface->getHeight(); 1603 break; 1604 case EGL_LARGEST_PBUFFER: 1605 // not modified for a window or pixmap surface 1606 break; 1607 case EGL_TEXTURE_FORMAT: 1608 *value = EGL_NO_TEXTURE; 1609 break; 1610 case EGL_TEXTURE_TARGET: 1611 *value = EGL_NO_TEXTURE; 1612 break; 1613 case EGL_MIPMAP_TEXTURE: 1614 *value = EGL_FALSE; 1615 break; 1616 case EGL_MIPMAP_LEVEL: 1617 *value = 0; 1618 break; 1619 case EGL_RENDER_BUFFER: 1620 // TODO: return the real RENDER_BUFFER here 1621 *value = EGL_BACK_BUFFER; 1622 break; 1623 case EGL_HORIZONTAL_RESOLUTION: 1624 // pixel/mm * EGL_DISPLAY_SCALING 1625 *value = surface->getHorizontalResolution(); 1626 break; 1627 case EGL_VERTICAL_RESOLUTION: 1628 // pixel/mm * EGL_DISPLAY_SCALING 1629 *value = surface->getVerticalResolution(); 1630 break; 1631 case EGL_PIXEL_ASPECT_RATIO: { 1632 // w/h * EGL_DISPLAY_SCALING 1633 int wr = surface->getHorizontalResolution(); 1634 int hr = surface->getVerticalResolution(); 1635 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1636 } break; 1637 case EGL_SWAP_BEHAVIOR: 1638 *value = surface->getSwapBehavior(); 1639 break; 1640 default: 1641 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1642 } 1643 return ret; 1644} 1645 1646EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1647 EGLContext share_list, const EGLint *attrib_list) 1648{ 1649 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1650 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1651 1652 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1653 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1654 1655 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1656 c->flags = egl_context_t::NEVER_CURRENT; 1657 c->dpy = dpy; 1658 c->config = config; 1659 c->read = 0; 1660 c->draw = 0; 1661 return (EGLContext)gl; 1662} 1663 1664EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1665{ 1666 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1667 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1668 egl_context_t* c = egl_context_t::context(ctx); 1669 if (c->flags & egl_context_t::IS_CURRENT) 1670 setGlThreadSpecific(0); 1671 ogles_uninit((ogles_context_t*)ctx); 1672 return EGL_TRUE; 1673} 1674 1675EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1676 EGLSurface read, EGLContext ctx) 1677{ 1678 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1679 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1680 if (draw) { 1681 egl_surface_t* s = (egl_surface_t*)draw; 1682 if (!s->isValid()) 1683 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1684 if (s->dpy != dpy) 1685 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1686 // TODO: check that draw is compatible with the context 1687 } 1688 if (read && read!=draw) { 1689 egl_surface_t* s = (egl_surface_t*)read; 1690 if (!s->isValid()) 1691 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1692 if (s->dpy != dpy) 1693 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1694 // TODO: check that read is compatible with the context 1695 } 1696 1697 EGLContext current_ctx = EGL_NO_CONTEXT; 1698 1699 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1700 return setError(EGL_BAD_MATCH, EGL_FALSE); 1701 1702 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1703 return setError(EGL_BAD_MATCH, EGL_FALSE); 1704 1705 if (ctx == EGL_NO_CONTEXT) { 1706 // if we're detaching, we need the current context 1707 current_ctx = (EGLContext)getGlThreadSpecific(); 1708 } else { 1709 egl_context_t* c = egl_context_t::context(ctx); 1710 egl_surface_t* d = (egl_surface_t*)draw; 1711 egl_surface_t* r = (egl_surface_t*)read; 1712 if ((d && d->ctx && d->ctx != ctx) || 1713 (r && r->ctx && r->ctx != ctx)) { 1714 // one of the surface is bound to a context in another thread 1715 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1716 } 1717 } 1718 1719 ogles_context_t* gl = (ogles_context_t*)ctx; 1720 if (makeCurrent(gl) == 0) { 1721 if (ctx) { 1722 egl_context_t* c = egl_context_t::context(ctx); 1723 egl_surface_t* d = (egl_surface_t*)draw; 1724 egl_surface_t* r = (egl_surface_t*)read; 1725 1726 if (c->draw) { 1727 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1728 s->disconnect(); 1729 } 1730 if (c->read) { 1731 // FIXME: unlock/disconnect the read surface too 1732 } 1733 1734 c->draw = draw; 1735 c->read = read; 1736 1737 if (c->flags & egl_context_t::NEVER_CURRENT) { 1738 c->flags &= ~egl_context_t::NEVER_CURRENT; 1739 GLint w = 0; 1740 GLint h = 0; 1741 if (draw) { 1742 w = d->getWidth(); 1743 h = d->getHeight(); 1744 } 1745 ogles_surfaceport(gl, 0, 0); 1746 ogles_viewport(gl, 0, 0, w, h); 1747 ogles_scissor(gl, 0, 0, w, h); 1748 } 1749 if (d) { 1750 if (d->connect() == EGL_FALSE) { 1751 return EGL_FALSE; 1752 } 1753 d->ctx = ctx; 1754 d->bindDrawSurface(gl); 1755 } 1756 if (r) { 1757 // FIXME: lock/connect the read surface too 1758 r->ctx = ctx; 1759 r->bindReadSurface(gl); 1760 } 1761 } else { 1762 // if surfaces were bound to the context bound to this thread 1763 // mark then as unbound. 1764 if (current_ctx) { 1765 egl_context_t* c = egl_context_t::context(current_ctx); 1766 egl_surface_t* d = (egl_surface_t*)c->draw; 1767 egl_surface_t* r = (egl_surface_t*)c->read; 1768 if (d) { 1769 c->draw = 0; 1770 d->ctx = EGL_NO_CONTEXT; 1771 d->disconnect(); 1772 } 1773 if (r) { 1774 c->read = 0; 1775 r->ctx = EGL_NO_CONTEXT; 1776 // FIXME: unlock/disconnect the read surface too 1777 } 1778 } 1779 } 1780 return EGL_TRUE; 1781 } 1782 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1783} 1784 1785EGLContext eglGetCurrentContext(void) 1786{ 1787 // eglGetCurrentContext returns the current EGL rendering context, 1788 // as specified by eglMakeCurrent. If no context is current, 1789 // EGL_NO_CONTEXT is returned. 1790 return (EGLContext)getGlThreadSpecific(); 1791} 1792 1793EGLSurface eglGetCurrentSurface(EGLint readdraw) 1794{ 1795 // eglGetCurrentSurface returns the read or draw surface attached 1796 // to the current EGL rendering context, as specified by eglMakeCurrent. 1797 // If no context is current, EGL_NO_SURFACE is returned. 1798 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1799 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1800 egl_context_t* c = egl_context_t::context(ctx); 1801 if (readdraw == EGL_READ) { 1802 return c->read; 1803 } else if (readdraw == EGL_DRAW) { 1804 return c->draw; 1805 } 1806 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1807} 1808 1809EGLDisplay eglGetCurrentDisplay(void) 1810{ 1811 // eglGetCurrentDisplay returns the current EGL display connection 1812 // for the current EGL rendering context, as specified by eglMakeCurrent. 1813 // If no context is current, EGL_NO_DISPLAY is returned. 1814 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1815 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1816 egl_context_t* c = egl_context_t::context(ctx); 1817 return c->dpy; 1818} 1819 1820EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1821 EGLint attribute, EGLint *value) 1822{ 1823 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1824 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1825 egl_context_t* c = egl_context_t::context(ctx); 1826 switch (attribute) { 1827 case EGL_CONFIG_ID: 1828 // Returns the ID of the EGL frame buffer configuration with 1829 // respect to which the context was created 1830 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1831 } 1832 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1833} 1834 1835EGLBoolean eglWaitGL(void) 1836{ 1837 return EGL_TRUE; 1838} 1839 1840EGLBoolean eglWaitNative(EGLint engine) 1841{ 1842 return EGL_TRUE; 1843} 1844 1845EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1846{ 1847 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1848 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1849 1850 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1851 if (!d->isValid()) 1852 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1853 if (d->dpy != dpy) 1854 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1855 1856 // post the surface 1857 d->swapBuffers(); 1858 1859 // if it's bound to a context, update the buffer 1860 if (d->ctx != EGL_NO_CONTEXT) { 1861 d->bindDrawSurface((ogles_context_t*)d->ctx); 1862 // if this surface is also the read surface of the context 1863 // it is bound to, make sure to update the read buffer as well. 1864 // The EGL spec is a little unclear about this. 1865 egl_context_t* c = egl_context_t::context(d->ctx); 1866 if (c->read == draw) { 1867 d->bindReadSurface((ogles_context_t*)d->ctx); 1868 } 1869 } 1870 1871 return EGL_TRUE; 1872} 1873 1874EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1875 NativePixmapType target) 1876{ 1877 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1878 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1879 // TODO: eglCopyBuffers() 1880 return EGL_FALSE; 1881} 1882 1883EGLint eglGetError(void) 1884{ 1885 return getError(); 1886} 1887 1888const char* eglQueryString(EGLDisplay dpy, EGLint name) 1889{ 1890 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1891 return setError(EGL_BAD_DISPLAY, (const char*)0); 1892 1893 switch (name) { 1894 case EGL_VENDOR: 1895 return gVendorString; 1896 case EGL_VERSION: 1897 return gVersionString; 1898 case EGL_EXTENSIONS: 1899 return gExtensionsString; 1900 case EGL_CLIENT_APIS: 1901 return gClientApiString; 1902 } 1903 return setError(EGL_BAD_PARAMETER, (const char *)0); 1904} 1905 1906// ---------------------------------------------------------------------------- 1907// EGL 1.1 1908// ---------------------------------------------------------------------------- 1909 1910EGLBoolean eglSurfaceAttrib( 1911 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1912{ 1913 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1914 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1915 // TODO: eglSurfaceAttrib() 1916 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1917} 1918 1919EGLBoolean eglBindTexImage( 1920 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1921{ 1922 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1923 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1924 // TODO: eglBindTexImage() 1925 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1926} 1927 1928EGLBoolean eglReleaseTexImage( 1929 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1930{ 1931 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1932 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1933 // TODO: eglReleaseTexImage() 1934 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1935} 1936 1937EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1938{ 1939 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1940 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1941 // TODO: eglSwapInterval() 1942 return EGL_TRUE; 1943} 1944 1945// ---------------------------------------------------------------------------- 1946// EGL 1.2 1947// ---------------------------------------------------------------------------- 1948 1949EGLBoolean eglBindAPI(EGLenum api) 1950{ 1951 if (api != EGL_OPENGL_ES_API) 1952 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1953 return EGL_TRUE; 1954} 1955 1956EGLenum eglQueryAPI(void) 1957{ 1958 return EGL_OPENGL_ES_API; 1959} 1960 1961EGLBoolean eglWaitClient(void) 1962{ 1963 glFinish(); 1964 return EGL_TRUE; 1965} 1966 1967EGLBoolean eglReleaseThread(void) 1968{ 1969 // TODO: eglReleaseThread() 1970 return EGL_TRUE; 1971} 1972 1973EGLSurface eglCreatePbufferFromClientBuffer( 1974 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 1975 EGLConfig config, const EGLint *attrib_list) 1976{ 1977 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1978 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1979 // TODO: eglCreatePbufferFromClientBuffer() 1980 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 1981} 1982 1983// ---------------------------------------------------------------------------- 1984// EGL_EGLEXT_VERSION 3 1985// ---------------------------------------------------------------------------- 1986 1987void (*eglGetProcAddress (const char *procname))() 1988{ 1989 extention_map_t const * const map = gExtentionMap; 1990 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 1991 if (!strcmp(procname, map[i].name)) { 1992 return map[i].address; 1993 } 1994 } 1995 return NULL; 1996} 1997 1998EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 1999 const EGLint *attrib_list) 2000{ 2001 EGLBoolean result = EGL_FALSE; 2002 return result; 2003} 2004 2005EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 2006{ 2007 EGLBoolean result = EGL_FALSE; 2008 return result; 2009} 2010 2011EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 2012 EGLClientBuffer buffer, const EGLint *attrib_list) 2013{ 2014 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2015 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 2016 } 2017 if (ctx != EGL_NO_CONTEXT) { 2018 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2019 } 2020 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2021 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2022 } 2023 2024 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)buffer; 2025 2026 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2027 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2028 2029 if (native_buffer->common.version != sizeof(ANativeWindowBuffer)) 2030 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2031 2032 switch (native_buffer->format) { 2033 case HAL_PIXEL_FORMAT_RGBA_8888: 2034 case HAL_PIXEL_FORMAT_RGBX_8888: 2035 case HAL_PIXEL_FORMAT_RGB_888: 2036 case HAL_PIXEL_FORMAT_RGB_565: 2037 case HAL_PIXEL_FORMAT_BGRA_8888: 2038 case HAL_PIXEL_FORMAT_RGBA_5551: 2039 case HAL_PIXEL_FORMAT_RGBA_4444: 2040 break; 2041 default: 2042 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2043 } 2044 2045 native_buffer->common.incRef(&native_buffer->common); 2046 return (EGLImageKHR)native_buffer; 2047} 2048 2049EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2050{ 2051 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2052 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2053 } 2054 2055 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)img; 2056 2057 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2058 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2059 2060 if (native_buffer->common.version != sizeof(ANativeWindowBuffer)) 2061 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2062 2063 native_buffer->common.decRef(&native_buffer->common); 2064 2065 return EGL_TRUE; 2066} 2067 2068// ---------------------------------------------------------------------------- 2069// EGL_KHR_fence_sync 2070// ---------------------------------------------------------------------------- 2071 2072#define FENCE_SYNC_HANDLE ((EGLSyncKHR)0xFE4CE) 2073 2074EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, 2075 const EGLint *attrib_list) 2076{ 2077 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2078 return setError(EGL_BAD_DISPLAY, EGL_NO_SYNC_KHR); 2079 } 2080 2081 if (type != EGL_SYNC_FENCE_KHR || 2082 (attrib_list != NULL && attrib_list[0] != EGL_NONE)) { 2083 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SYNC_KHR); 2084 } 2085 2086 if (eglGetCurrentContext() == EGL_NO_CONTEXT) { 2087 return setError(EGL_BAD_MATCH, EGL_NO_SYNC_KHR); 2088 } 2089 2090 // AGL is synchronous; nothing to do here. 2091 2092 return FENCE_SYNC_HANDLE; 2093} 2094 2095EGLBoolean eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync) 2096{ 2097 if (sync != FENCE_SYNC_HANDLE) { 2098 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2099 } 2100 2101 return EGL_TRUE; 2102} 2103 2104EGLint eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, 2105 EGLTimeKHR timeout) 2106{ 2107 if (sync != FENCE_SYNC_HANDLE) { 2108 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2109 } 2110 2111 return EGL_CONDITION_SATISFIED_KHR; 2112} 2113 2114EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync, 2115 EGLint attribute, EGLint *value) 2116{ 2117 if (sync != FENCE_SYNC_HANDLE) { 2118 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2119 } 2120 2121 switch (attribute) { 2122 case EGL_SYNC_TYPE_KHR: 2123 *value = EGL_SYNC_FENCE_KHR; 2124 return EGL_TRUE; 2125 case EGL_SYNC_STATUS_KHR: 2126 *value = EGL_SIGNALED_KHR; 2127 return EGL_TRUE; 2128 case EGL_SYNC_CONDITION_KHR: 2129 *value = EGL_SYNC_PRIOR_COMMANDS_COMPLETE_KHR; 2130 return EGL_TRUE; 2131 default: 2132 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 2133 } 2134} 2135 2136// ---------------------------------------------------------------------------- 2137// ANDROID extensions 2138// ---------------------------------------------------------------------------- 2139 2140EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2141 EGLint left, EGLint top, EGLint width, EGLint height) 2142{ 2143 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2144 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2145 2146 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2147 if (!d->isValid()) 2148 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2149 if (d->dpy != dpy) 2150 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2151 2152 // post the surface 2153 d->setSwapRectangle(left, top, width, height); 2154 2155 return EGL_TRUE; 2156} 2157