egl.cpp revision 9cdb01da71934e98b6732db0f5758ea4edd5d5c7
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(android_native_buffer_t* buf, int usage, void** vaddr); 234 status_t unlock(android_native_buffer_t* buf); 235 ANativeWindow* nativeWindow; 236 android_native_buffer_t* buffer; 237 android_native_buffer_t* 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 android_native_buffer_t* dst, void* dst_vaddr, 326 android_native_buffer_t* 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 android_native_buffer_t* 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(android_native_buffer_t* 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 android_native_buffer_t* dst, void* dst_vaddr, 440 android_native_buffer_t* src, void const* src_vaddr, 441 const Region& clip) 442{ 443 // FIXME: use copybit if possible 444 // NOTE: dst and src must be the same format 445 446 Region::const_iterator cur = clip.begin(); 447 Region::const_iterator end = clip.end(); 448 449 const size_t bpp = pixelFormatTable[src->format].size; 450 const size_t dbpr = dst->stride * bpp; 451 const size_t sbpr = src->stride * bpp; 452 453 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 454 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 455 456 while (cur != end) { 457 const Rect& r(*cur++); 458 ssize_t w = r.right - r.left; 459 ssize_t h = r.bottom - r.top; 460 if (w <= 0 || h<=0) continue; 461 size_t size = w * bpp; 462 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 463 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 464 if (dbpr==sbpr && size==sbpr) { 465 size *= h; 466 h = 1; 467 } 468 do { 469 memcpy(d, s, size); 470 d += dbpr; 471 s += sbpr; 472 } while (--h > 0); 473 } 474} 475 476EGLBoolean egl_window_surface_v2_t::swapBuffers() 477{ 478 if (!buffer) { 479 return setError(EGL_BAD_ACCESS, EGL_FALSE); 480 } 481 482 /* 483 * Handle eglSetSwapRectangleANDROID() 484 * We copyback from the front buffer 485 */ 486 if (!dirtyRegion.isEmpty()) { 487 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 488 if (previousBuffer) { 489 // This was const Region copyBack, but that causes an 490 // internal compile error on simulator builds 491 /*const*/ Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 492 if (!copyBack.isEmpty()) { 493 void* prevBits; 494 if (lock(previousBuffer, 495 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 496 // copy from previousBuffer to buffer 497 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 498 unlock(previousBuffer); 499 } 500 } 501 } 502 oldDirtyRegion = dirtyRegion; 503 } 504 505 if (previousBuffer) { 506 previousBuffer->common.decRef(&previousBuffer->common); 507 previousBuffer = 0; 508 } 509 510 unlock(buffer); 511 previousBuffer = buffer; 512 nativeWindow->queueBuffer(nativeWindow, buffer); 513 buffer = 0; 514 515 // dequeue a new buffer 516 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) { 517 518 // TODO: lockBuffer should rather be executed when the very first 519 // direct rendering occurs. 520 nativeWindow->lockBuffer(nativeWindow, buffer); 521 522 // reallocate the depth-buffer if needed 523 if ((width != buffer->width) || (height != buffer->height)) { 524 // TODO: we probably should reset the swap rect here 525 // if the window size has changed 526 width = buffer->width; 527 height = buffer->height; 528 if (depth.data) { 529 free(depth.data); 530 depth.width = width; 531 depth.height = height; 532 depth.stride = buffer->stride; 533 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 534 if (depth.data == 0) { 535 setError(EGL_BAD_ALLOC, EGL_FALSE); 536 return EGL_FALSE; 537 } 538 } 539 } 540 541 // keep a reference on the buffer 542 buffer->common.incRef(&buffer->common); 543 544 // finally pin the buffer down 545 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 546 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 547 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 548 buffer, buffer->width, buffer->height); 549 return setError(EGL_BAD_ACCESS, EGL_FALSE); 550 // FIXME: we should make sure we're not accessing the buffer anymore 551 } 552 } else { 553 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE); 554 } 555 556 return EGL_TRUE; 557} 558 559EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 560 EGLint l, EGLint t, EGLint w, EGLint h) 561{ 562 dirtyRegion = Rect(l, t, l+w, t+h); 563 return EGL_TRUE; 564} 565 566EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 567{ 568 GGLSurface buffer; 569 buffer.version = sizeof(GGLSurface); 570 buffer.width = this->buffer->width; 571 buffer.height = this->buffer->height; 572 buffer.stride = this->buffer->stride; 573 buffer.data = (GGLubyte*)bits; 574 buffer.format = this->buffer->format; 575 gl->rasterizer.procs.colorBuffer(gl, &buffer); 576 if (depth.data != gl->rasterizer.state.buffers.depth.data) 577 gl->rasterizer.procs.depthBuffer(gl, &depth); 578 579 return EGL_TRUE; 580} 581EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 582{ 583 GGLSurface buffer; 584 buffer.version = sizeof(GGLSurface); 585 buffer.width = this->buffer->width; 586 buffer.height = this->buffer->height; 587 buffer.stride = this->buffer->stride; 588 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 589 buffer.format = this->buffer->format; 590 gl->rasterizer.procs.readBuffer(gl, &buffer); 591 return EGL_TRUE; 592} 593EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 594 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 595} 596EGLint egl_window_surface_v2_t::getVerticalResolution() const { 597 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 598} 599EGLint egl_window_surface_v2_t::getRefreshRate() const { 600 return (60 * EGL_DISPLAY_SCALING); // FIXME 601} 602EGLint egl_window_surface_v2_t::getSwapBehavior() const 603{ 604 /* 605 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 606 * the content of the swapped buffer. 607 * 608 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 609 * 610 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 611 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 612 * is, everything outside of this area is preserved. 613 * 614 * This implementation of EGL assumes the later case. 615 * 616 */ 617 618 return EGL_BUFFER_DESTROYED; 619} 620 621// ---------------------------------------------------------------------------- 622 623struct egl_pixmap_surface_t : public egl_surface_t 624{ 625 egl_pixmap_surface_t( 626 EGLDisplay dpy, EGLConfig config, 627 int32_t depthFormat, 628 egl_native_pixmap_t const * pixmap); 629 630 virtual ~egl_pixmap_surface_t() { } 631 632 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 633 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 634 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 635 virtual EGLint getWidth() const { return nativePixmap.width; } 636 virtual EGLint getHeight() const { return nativePixmap.height; } 637private: 638 egl_native_pixmap_t nativePixmap; 639}; 640 641egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 642 EGLConfig config, 643 int32_t depthFormat, 644 egl_native_pixmap_t const * pixmap) 645 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 646{ 647 if (depthFormat) { 648 depth.width = pixmap->width; 649 depth.height = pixmap->height; 650 depth.stride = depth.width; // use the width here 651 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 652 if (depth.data == 0) { 653 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 654 } 655 } 656} 657EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 658{ 659 GGLSurface buffer; 660 buffer.version = sizeof(GGLSurface); 661 buffer.width = nativePixmap.width; 662 buffer.height = nativePixmap.height; 663 buffer.stride = nativePixmap.stride; 664 buffer.data = nativePixmap.data; 665 buffer.format = nativePixmap.format; 666 667 gl->rasterizer.procs.colorBuffer(gl, &buffer); 668 if (depth.data != gl->rasterizer.state.buffers.depth.data) 669 gl->rasterizer.procs.depthBuffer(gl, &depth); 670 return EGL_TRUE; 671} 672EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 673{ 674 GGLSurface buffer; 675 buffer.version = sizeof(GGLSurface); 676 buffer.width = nativePixmap.width; 677 buffer.height = nativePixmap.height; 678 buffer.stride = nativePixmap.stride; 679 buffer.data = nativePixmap.data; 680 buffer.format = nativePixmap.format; 681 gl->rasterizer.procs.readBuffer(gl, &buffer); 682 return EGL_TRUE; 683} 684 685// ---------------------------------------------------------------------------- 686 687struct egl_pbuffer_surface_t : public egl_surface_t 688{ 689 egl_pbuffer_surface_t( 690 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 691 int32_t w, int32_t h, int32_t f); 692 693 virtual ~egl_pbuffer_surface_t(); 694 695 virtual bool initCheck() const { return pbuffer.data != 0; } 696 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 697 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 698 virtual EGLint getWidth() const { return pbuffer.width; } 699 virtual EGLint getHeight() const { return pbuffer.height; } 700private: 701 GGLSurface pbuffer; 702}; 703 704egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 705 EGLConfig config, int32_t depthFormat, 706 int32_t w, int32_t h, int32_t f) 707 : egl_surface_t(dpy, config, depthFormat) 708{ 709 size_t size = w*h; 710 switch (f) { 711 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 712 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 713 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 714 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break; 715 default: 716 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 717 pbuffer.data = 0; 718 break; 719 } 720 pbuffer.version = sizeof(GGLSurface); 721 pbuffer.width = w; 722 pbuffer.height = h; 723 pbuffer.stride = w; 724 pbuffer.data = (GGLubyte*)malloc(size); 725 pbuffer.format = f; 726 727 if (depthFormat) { 728 depth.width = pbuffer.width; 729 depth.height = pbuffer.height; 730 depth.stride = depth.width; // use the width here 731 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 732 if (depth.data == 0) { 733 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 734 return; 735 } 736 } 737} 738egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 739 free(pbuffer.data); 740} 741EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 742{ 743 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 744 if (depth.data != gl->rasterizer.state.buffers.depth.data) 745 gl->rasterizer.procs.depthBuffer(gl, &depth); 746 return EGL_TRUE; 747} 748EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 749{ 750 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 751 return EGL_TRUE; 752} 753 754// ---------------------------------------------------------------------------- 755 756struct config_pair_t { 757 GLint key; 758 GLint value; 759}; 760 761struct configs_t { 762 const config_pair_t* array; 763 int size; 764}; 765 766struct config_management_t { 767 GLint key; 768 bool (*match)(GLint reqValue, GLint confValue); 769 static bool atLeast(GLint reqValue, GLint confValue) { 770 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 771 } 772 static bool exact(GLint reqValue, GLint confValue) { 773 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 774 } 775 static bool mask(GLint reqValue, GLint confValue) { 776 return (confValue & reqValue) == reqValue; 777 } 778 static bool ignore(GLint reqValue, GLint confValue) { 779 return true; 780 } 781}; 782 783// ---------------------------------------------------------------------------- 784 785#define VERSION_MAJOR 1 786#define VERSION_MINOR 2 787static char const * const gVendorString = "Google Inc."; 788static char const * const gVersionString = "1.2 Android Driver 1.2.0"; 789static char const * const gClientApiString = "OpenGL ES"; 790static char const * const gExtensionsString = 791 "EGL_KHR_image_base " 792 // "KHR_image_pixmap " 793 "EGL_ANDROID_image_native_buffer " 794 "EGL_ANDROID_swap_rectangle " 795 ; 796 797// ---------------------------------------------------------------------------- 798 799struct extention_map_t { 800 const char * const name; 801 __eglMustCastToProperFunctionPointerType address; 802}; 803 804static const extention_map_t gExtentionMap[] = { 805 { "glDrawTexsOES", 806 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 807 { "glDrawTexiOES", 808 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 809 { "glDrawTexfOES", 810 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 811 { "glDrawTexxOES", 812 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 813 { "glDrawTexsvOES", 814 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 815 { "glDrawTexivOES", 816 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 817 { "glDrawTexfvOES", 818 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 819 { "glDrawTexxvOES", 820 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 821 { "glQueryMatrixxOES", 822 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 823 { "glEGLImageTargetTexture2DOES", 824 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 825 { "glEGLImageTargetRenderbufferStorageOES", 826 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 827 { "glClipPlanef", 828 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 829 { "glClipPlanex", 830 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 831 { "glBindBuffer", 832 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 833 { "glBufferData", 834 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 835 { "glBufferSubData", 836 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 837 { "glDeleteBuffers", 838 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 839 { "glGenBuffers", 840 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 841 { "eglCreateImageKHR", 842 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 843 { "eglDestroyImageKHR", 844 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 845 { "eglSetSwapRectangleANDROID", 846 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 847}; 848 849/* 850 * In the lists below, attributes names MUST be sorted. 851 * Additionally, all configs must be sorted according to 852 * the EGL specification. 853 */ 854 855static config_pair_t const config_base_attribute_list[] = { 856 { EGL_STENCIL_SIZE, 0 }, 857 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 858 { EGL_LEVEL, 0 }, 859 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 860 { EGL_MAX_PBUFFER_PIXELS, 861 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 862 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 863 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 864 { EGL_NATIVE_VISUAL_ID, 0 }, 865 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 866 { EGL_SAMPLES, 0 }, 867 { EGL_SAMPLE_BUFFERS, 0 }, 868 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 869 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 870 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 871 { EGL_TRANSPARENT_RED_VALUE, 0 }, 872 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 873 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 874 { EGL_MIN_SWAP_INTERVAL, 1 }, 875 { EGL_MAX_SWAP_INTERVAL, 1 }, 876 { EGL_LUMINANCE_SIZE, 0 }, 877 { EGL_ALPHA_MASK_SIZE, 0 }, 878 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER }, 879 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 880 { EGL_CONFORMANT, 0 } 881}; 882 883// These configs can override the base attribute list 884// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 885 886// 565 configs 887static config_pair_t const config_0_attribute_list[] = { 888 { EGL_BUFFER_SIZE, 16 }, 889 { EGL_ALPHA_SIZE, 0 }, 890 { EGL_BLUE_SIZE, 5 }, 891 { EGL_GREEN_SIZE, 6 }, 892 { EGL_RED_SIZE, 5 }, 893 { EGL_DEPTH_SIZE, 0 }, 894 { EGL_CONFIG_ID, 0 }, 895 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 896 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 897}; 898 899static config_pair_t const config_1_attribute_list[] = { 900 { EGL_BUFFER_SIZE, 16 }, 901 { EGL_ALPHA_SIZE, 0 }, 902 { EGL_BLUE_SIZE, 5 }, 903 { EGL_GREEN_SIZE, 6 }, 904 { EGL_RED_SIZE, 5 }, 905 { EGL_DEPTH_SIZE, 16 }, 906 { EGL_CONFIG_ID, 1 }, 907 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 908 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 909}; 910 911// RGB 888 configs 912static config_pair_t const config_2_attribute_list[] = { 913 { EGL_BUFFER_SIZE, 32 }, 914 { EGL_ALPHA_SIZE, 0 }, 915 { EGL_BLUE_SIZE, 8 }, 916 { EGL_GREEN_SIZE, 8 }, 917 { EGL_RED_SIZE, 8 }, 918 { EGL_DEPTH_SIZE, 0 }, 919 { EGL_CONFIG_ID, 6 }, 920 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 921 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 922}; 923 924static config_pair_t const config_3_attribute_list[] = { 925 { EGL_BUFFER_SIZE, 32 }, 926 { EGL_ALPHA_SIZE, 0 }, 927 { EGL_BLUE_SIZE, 8 }, 928 { EGL_GREEN_SIZE, 8 }, 929 { EGL_RED_SIZE, 8 }, 930 { EGL_DEPTH_SIZE, 16 }, 931 { EGL_CONFIG_ID, 7 }, 932 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 933 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 934}; 935 936// 8888 configs 937static config_pair_t const config_4_attribute_list[] = { 938 { EGL_BUFFER_SIZE, 32 }, 939 { EGL_ALPHA_SIZE, 8 }, 940 { EGL_BLUE_SIZE, 8 }, 941 { EGL_GREEN_SIZE, 8 }, 942 { EGL_RED_SIZE, 8 }, 943 { EGL_DEPTH_SIZE, 0 }, 944 { EGL_CONFIG_ID, 2 }, 945 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 946 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 947}; 948 949static config_pair_t const config_5_attribute_list[] = { 950 { EGL_BUFFER_SIZE, 32 }, 951 { EGL_ALPHA_SIZE, 8 }, 952 { EGL_BLUE_SIZE, 8 }, 953 { EGL_GREEN_SIZE, 8 }, 954 { EGL_RED_SIZE, 8 }, 955 { EGL_DEPTH_SIZE, 16 }, 956 { EGL_CONFIG_ID, 3 }, 957 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 958 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 959}; 960 961// A8 configs 962static config_pair_t const config_6_attribute_list[] = { 963 { EGL_BUFFER_SIZE, 8 }, 964 { EGL_ALPHA_SIZE, 8 }, 965 { EGL_BLUE_SIZE, 0 }, 966 { EGL_GREEN_SIZE, 0 }, 967 { EGL_RED_SIZE, 0 }, 968 { EGL_DEPTH_SIZE, 0 }, 969 { EGL_CONFIG_ID, 4 }, 970 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 971 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 972}; 973 974static config_pair_t const config_7_attribute_list[] = { 975 { EGL_BUFFER_SIZE, 8 }, 976 { EGL_ALPHA_SIZE, 8 }, 977 { EGL_BLUE_SIZE, 0 }, 978 { EGL_GREEN_SIZE, 0 }, 979 { EGL_RED_SIZE, 0 }, 980 { EGL_DEPTH_SIZE, 16 }, 981 { EGL_CONFIG_ID, 5 }, 982 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 983 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 984}; 985 986static configs_t const gConfigs[] = { 987 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 988 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 989 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 990 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 991 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 992 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 993 { config_6_attribute_list, NELEM(config_6_attribute_list) }, 994 { config_7_attribute_list, NELEM(config_7_attribute_list) }, 995}; 996 997static config_management_t const gConfigManagement[] = { 998 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 999 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1000 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1001 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1002 { EGL_RED_SIZE, config_management_t::atLeast }, 1003 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1004 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1005 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1006 { EGL_CONFIG_ID, config_management_t::exact }, 1007 { EGL_LEVEL, config_management_t::exact }, 1008 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::ignore }, 1009 { EGL_MAX_PBUFFER_PIXELS, config_management_t::ignore }, 1010 { EGL_MAX_PBUFFER_WIDTH, config_management_t::ignore }, 1011 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1012 { EGL_NATIVE_VISUAL_ID, config_management_t::ignore }, 1013 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1014 { EGL_SAMPLES, config_management_t::exact }, 1015 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1016 { EGL_SURFACE_TYPE, config_management_t::mask }, 1017 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1018 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1019 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1020 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1021 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1022 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1023 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1024 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1025 { EGL_LUMINANCE_SIZE, config_management_t::atLeast }, 1026 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast }, 1027 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact }, 1028 { EGL_RENDERABLE_TYPE, config_management_t::mask }, 1029 { EGL_CONFORMANT, config_management_t::mask } 1030}; 1031 1032 1033static config_pair_t const config_defaults[] = { 1034 // attributes that are not specified are simply ignored, if a particular 1035 // one needs not be ignored, it must be specified here, eg: 1036 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1037}; 1038 1039// ---------------------------------------------------------------------------- 1040 1041static status_t getConfigFormatInfo(EGLint configID, 1042 int32_t& pixelFormat, int32_t& depthFormat) 1043{ 1044 switch(configID) { 1045 case 0: 1046 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1047 depthFormat = 0; 1048 break; 1049 case 1: 1050 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1051 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1052 break; 1053 case 2: 1054 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1055 depthFormat = 0; 1056 break; 1057 case 3: 1058 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1059 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1060 break; 1061 case 4: 1062 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1063 depthFormat = 0; 1064 break; 1065 case 5: 1066 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1067 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1068 break; 1069 case 6: 1070 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1071 depthFormat = 0; 1072 break; 1073 case 7: 1074 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1075 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1076 break; 1077 default: 1078 return NAME_NOT_FOUND; 1079 } 1080 return NO_ERROR; 1081} 1082 1083// ---------------------------------------------------------------------------- 1084 1085template<typename T> 1086static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1087{ 1088 while (first <= last) { 1089 int mid = (first + last) / 2; 1090 if (key > sortedArray[mid].key) { 1091 first = mid + 1; 1092 } else if (key < sortedArray[mid].key) { 1093 last = mid - 1; 1094 } else { 1095 return mid; 1096 } 1097 } 1098 return -1; 1099} 1100 1101static int isAttributeMatching(int i, EGLint attr, EGLint val) 1102{ 1103 // look for the attribute in all of our configs 1104 config_pair_t const* configFound = gConfigs[i].array; 1105 int index = binarySearch<config_pair_t>( 1106 gConfigs[i].array, 1107 0, gConfigs[i].size-1, 1108 attr); 1109 if (index < 0) { 1110 configFound = config_base_attribute_list; 1111 index = binarySearch<config_pair_t>( 1112 config_base_attribute_list, 1113 0, NELEM(config_base_attribute_list)-1, 1114 attr); 1115 } 1116 if (index >= 0) { 1117 // attribute found, check if this config could match 1118 int cfgMgtIndex = binarySearch<config_management_t>( 1119 gConfigManagement, 1120 0, NELEM(gConfigManagement)-1, 1121 attr); 1122 if (cfgMgtIndex >= 0) { 1123 bool match = gConfigManagement[cfgMgtIndex].match( 1124 val, configFound[index].value); 1125 if (match) { 1126 // this config matches 1127 return 1; 1128 } 1129 } else { 1130 // attribute not found. this should NEVER happen. 1131 } 1132 } else { 1133 // error, this attribute doesn't exist 1134 } 1135 return 0; 1136} 1137 1138static int makeCurrent(ogles_context_t* gl) 1139{ 1140 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1141 if (gl) { 1142 egl_context_t* c = egl_context_t::context(gl); 1143 if (c->flags & egl_context_t::IS_CURRENT) { 1144 if (current != gl) { 1145 // it is an error to set a context current, if it's already 1146 // current to another thread 1147 return -1; 1148 } 1149 } else { 1150 if (current) { 1151 // mark the current context as not current, and flush 1152 glFlush(); 1153 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1154 } 1155 } 1156 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1157 // The context is not current, make it current! 1158 setGlThreadSpecific(gl); 1159 c->flags |= egl_context_t::IS_CURRENT; 1160 } 1161 } else { 1162 if (current) { 1163 // mark the current context as not current, and flush 1164 glFlush(); 1165 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1166 } 1167 // this thread has no context attached to it 1168 setGlThreadSpecific(0); 1169 } 1170 return 0; 1171} 1172 1173static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1174 EGLint attribute, EGLint *value) 1175{ 1176 size_t numConfigs = NELEM(gConfigs); 1177 int index = (int)config; 1178 if (uint32_t(index) >= numConfigs) 1179 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1180 1181 int attrIndex; 1182 attrIndex = binarySearch<config_pair_t>( 1183 gConfigs[index].array, 1184 0, gConfigs[index].size-1, 1185 attribute); 1186 if (attrIndex>=0) { 1187 *value = gConfigs[index].array[attrIndex].value; 1188 return EGL_TRUE; 1189 } 1190 1191 attrIndex = binarySearch<config_pair_t>( 1192 config_base_attribute_list, 1193 0, NELEM(config_base_attribute_list)-1, 1194 attribute); 1195 if (attrIndex>=0) { 1196 *value = config_base_attribute_list[attrIndex].value; 1197 return EGL_TRUE; 1198 } 1199 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1200} 1201 1202static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1203 NativeWindowType window, const EGLint *attrib_list) 1204{ 1205 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1206 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1207 if (window == 0) 1208 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1209 1210 EGLint surfaceType; 1211 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1212 return EGL_FALSE; 1213 1214 if (!(surfaceType & EGL_WINDOW_BIT)) 1215 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1216 1217 if (static_cast<ANativeWindow*>(window)->common.magic != 1218 ANDROID_NATIVE_WINDOW_MAGIC) { 1219 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1220 } 1221 1222 EGLint configID; 1223 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1224 return EGL_FALSE; 1225 1226 int32_t depthFormat; 1227 int32_t pixelFormat; 1228 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1229 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1230 } 1231 1232 // FIXME: we don't have access to the pixelFormat here just yet. 1233 // (it's possible that the surface is not fully initialized) 1234 // maybe this should be done after the page-flip 1235 //if (EGLint(info.format) != pixelFormat) 1236 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1237 1238 egl_surface_t* surface; 1239 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1240 static_cast<ANativeWindow*>(window)); 1241 1242 if (!surface->initCheck()) { 1243 // there was a problem in the ctor, the error 1244 // flag has been set. 1245 delete surface; 1246 surface = 0; 1247 } 1248 return surface; 1249} 1250 1251static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1252 NativePixmapType pixmap, const EGLint *attrib_list) 1253{ 1254 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1255 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1256 if (pixmap == 0) 1257 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1258 1259 EGLint surfaceType; 1260 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1261 return EGL_FALSE; 1262 1263 if (!(surfaceType & EGL_PIXMAP_BIT)) 1264 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1265 1266 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1267 sizeof(egl_native_pixmap_t)) { 1268 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1269 } 1270 1271 EGLint configID; 1272 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1273 return EGL_FALSE; 1274 1275 int32_t depthFormat; 1276 int32_t pixelFormat; 1277 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1278 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1279 } 1280 1281 if (pixmap->format != pixelFormat) 1282 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1283 1284 egl_surface_t* surface = 1285 new egl_pixmap_surface_t(dpy, config, depthFormat, 1286 static_cast<egl_native_pixmap_t*>(pixmap)); 1287 1288 if (!surface->initCheck()) { 1289 // there was a problem in the ctor, the error 1290 // flag has been set. 1291 delete surface; 1292 surface = 0; 1293 } 1294 return surface; 1295} 1296 1297static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1298 const EGLint *attrib_list) 1299{ 1300 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1301 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1302 1303 EGLint surfaceType; 1304 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1305 return EGL_FALSE; 1306 1307 if (!(surfaceType & EGL_PBUFFER_BIT)) 1308 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1309 1310 EGLint configID; 1311 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1312 return EGL_FALSE; 1313 1314 int32_t depthFormat; 1315 int32_t pixelFormat; 1316 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1317 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1318 } 1319 1320 int32_t w = 0; 1321 int32_t h = 0; 1322 while (attrib_list[0]) { 1323 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1324 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1325 attrib_list+=2; 1326 } 1327 1328 egl_surface_t* surface = 1329 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1330 1331 if (!surface->initCheck()) { 1332 // there was a problem in the ctor, the error 1333 // flag has been set. 1334 delete surface; 1335 surface = 0; 1336 } 1337 return surface; 1338} 1339 1340// ---------------------------------------------------------------------------- 1341}; // namespace android 1342// ---------------------------------------------------------------------------- 1343 1344using namespace android; 1345 1346// ---------------------------------------------------------------------------- 1347// Initialization 1348// ---------------------------------------------------------------------------- 1349 1350EGLDisplay eglGetDisplay(NativeDisplayType display) 1351{ 1352#ifndef HAVE_ANDROID_OS 1353 // this just needs to be done once 1354 if (gGLKey == -1) { 1355 pthread_mutex_lock(&gInitMutex); 1356 if (gGLKey == -1) 1357 pthread_key_create(&gGLKey, NULL); 1358 pthread_mutex_unlock(&gInitMutex); 1359 } 1360#endif 1361 if (display == EGL_DEFAULT_DISPLAY) { 1362 EGLDisplay dpy = (EGLDisplay)1; 1363 egl_display_t& d = egl_display_t::get_display(dpy); 1364 d.type = display; 1365 return dpy; 1366 } 1367 return EGL_NO_DISPLAY; 1368} 1369 1370EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1371{ 1372 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1373 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1374 1375 EGLBoolean res = EGL_TRUE; 1376 egl_display_t& d = egl_display_t::get_display(dpy); 1377 1378 if (android_atomic_inc(&d.initialized) == 0) { 1379 // initialize stuff here if needed 1380 //pthread_mutex_lock(&gInitMutex); 1381 //pthread_mutex_unlock(&gInitMutex); 1382 } 1383 1384 if (res == EGL_TRUE) { 1385 if (major != NULL) *major = VERSION_MAJOR; 1386 if (minor != NULL) *minor = VERSION_MINOR; 1387 } 1388 return res; 1389} 1390 1391EGLBoolean eglTerminate(EGLDisplay dpy) 1392{ 1393 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1394 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1395 1396 EGLBoolean res = EGL_TRUE; 1397 egl_display_t& d = egl_display_t::get_display(dpy); 1398 if (android_atomic_dec(&d.initialized) == 1) { 1399 // TODO: destroy all resources (surfaces, contexts, etc...) 1400 //pthread_mutex_lock(&gInitMutex); 1401 //pthread_mutex_unlock(&gInitMutex); 1402 } 1403 return res; 1404} 1405 1406// ---------------------------------------------------------------------------- 1407// configuration 1408// ---------------------------------------------------------------------------- 1409 1410EGLBoolean eglGetConfigs( EGLDisplay dpy, 1411 EGLConfig *configs, 1412 EGLint config_size, EGLint *num_config) 1413{ 1414 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1415 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1416 1417 GLint numConfigs = NELEM(gConfigs); 1418 if (!configs) { 1419 *num_config = numConfigs; 1420 return EGL_TRUE; 1421 } 1422 GLint i; 1423 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1424 *configs++ = (EGLConfig)i; 1425 } 1426 *num_config = i; 1427 return EGL_TRUE; 1428} 1429 1430EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1431 EGLConfig *configs, EGLint config_size, 1432 EGLint *num_config) 1433{ 1434 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1435 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1436 1437 if (ggl_unlikely(num_config==0)) { 1438 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1439 } 1440 1441 if (ggl_unlikely(attrib_list==0)) { 1442 /* 1443 * A NULL attrib_list should be treated as though it was an empty 1444 * one (terminated with EGL_NONE) as defined in 1445 * section 3.4.1 "Querying Configurations" in the EGL specification. 1446 */ 1447 static const EGLint dummy = EGL_NONE; 1448 attrib_list = &dummy; 1449 } 1450 1451 int numAttributes = 0; 1452 int numConfigs = NELEM(gConfigs); 1453 uint32_t possibleMatch = (1<<numConfigs)-1; 1454 while(possibleMatch && *attrib_list != EGL_NONE) { 1455 numAttributes++; 1456 EGLint attr = *attrib_list++; 1457 EGLint val = *attrib_list++; 1458 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1459 if (!(possibleMatch & (1<<i))) 1460 continue; 1461 if (isAttributeMatching(i, attr, val) == 0) { 1462 possibleMatch &= ~(1<<i); 1463 } 1464 } 1465 } 1466 1467 // now, handle the attributes which have a useful default value 1468 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) { 1469 // see if this attribute was specified, if not, apply its 1470 // default value 1471 if (binarySearch<config_pair_t>( 1472 (config_pair_t const*)attrib_list, 1473 0, numAttributes-1, 1474 config_defaults[j].key) < 0) 1475 { 1476 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1477 if (!(possibleMatch & (1<<i))) 1478 continue; 1479 if (isAttributeMatching(i, 1480 config_defaults[j].key, 1481 config_defaults[j].value) == 0) 1482 { 1483 possibleMatch &= ~(1<<i); 1484 } 1485 } 1486 } 1487 } 1488 1489 // return the configurations found 1490 int n=0; 1491 if (possibleMatch) { 1492 if (configs) { 1493 for (int i=0 ; config_size && i<numConfigs ; i++) { 1494 if (possibleMatch & (1<<i)) { 1495 *configs++ = (EGLConfig)i; 1496 config_size--; 1497 n++; 1498 } 1499 } 1500 } else { 1501 for (int i=0 ; i<numConfigs ; i++) { 1502 if (possibleMatch & (1<<i)) { 1503 n++; 1504 } 1505 } 1506 } 1507 } 1508 *num_config = n; 1509 return EGL_TRUE; 1510} 1511 1512EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1513 EGLint attribute, EGLint *value) 1514{ 1515 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1516 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1517 1518 return getConfigAttrib(dpy, config, attribute, value); 1519} 1520 1521// ---------------------------------------------------------------------------- 1522// surfaces 1523// ---------------------------------------------------------------------------- 1524 1525EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1526 NativeWindowType window, 1527 const EGLint *attrib_list) 1528{ 1529 return createWindowSurface(dpy, config, window, attrib_list); 1530} 1531 1532EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1533 NativePixmapType pixmap, 1534 const EGLint *attrib_list) 1535{ 1536 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1537} 1538 1539EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1540 const EGLint *attrib_list) 1541{ 1542 return createPbufferSurface(dpy, config, attrib_list); 1543} 1544 1545EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1546{ 1547 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1548 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1549 if (eglSurface != EGL_NO_SURFACE) { 1550 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1551 if (!surface->isValid()) 1552 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1553 if (surface->dpy != dpy) 1554 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1555 if (surface->ctx) { 1556 // FIXME: this surface is current check what the spec says 1557 surface->disconnect(); 1558 surface->ctx = 0; 1559 } 1560 delete surface; 1561 } 1562 return EGL_TRUE; 1563} 1564 1565EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1566 EGLint attribute, EGLint *value) 1567{ 1568 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1569 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1570 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1571 if (!surface->isValid()) 1572 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1573 if (surface->dpy != dpy) 1574 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1575 1576 EGLBoolean ret = EGL_TRUE; 1577 switch (attribute) { 1578 case EGL_CONFIG_ID: 1579 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1580 break; 1581 case EGL_WIDTH: 1582 *value = surface->getWidth(); 1583 break; 1584 case EGL_HEIGHT: 1585 *value = surface->getHeight(); 1586 break; 1587 case EGL_LARGEST_PBUFFER: 1588 // not modified for a window or pixmap surface 1589 break; 1590 case EGL_TEXTURE_FORMAT: 1591 *value = EGL_NO_TEXTURE; 1592 break; 1593 case EGL_TEXTURE_TARGET: 1594 *value = EGL_NO_TEXTURE; 1595 break; 1596 case EGL_MIPMAP_TEXTURE: 1597 *value = EGL_FALSE; 1598 break; 1599 case EGL_MIPMAP_LEVEL: 1600 *value = 0; 1601 break; 1602 case EGL_RENDER_BUFFER: 1603 // TODO: return the real RENDER_BUFFER here 1604 *value = EGL_BACK_BUFFER; 1605 break; 1606 case EGL_HORIZONTAL_RESOLUTION: 1607 // pixel/mm * EGL_DISPLAY_SCALING 1608 *value = surface->getHorizontalResolution(); 1609 break; 1610 case EGL_VERTICAL_RESOLUTION: 1611 // pixel/mm * EGL_DISPLAY_SCALING 1612 *value = surface->getVerticalResolution(); 1613 break; 1614 case EGL_PIXEL_ASPECT_RATIO: { 1615 // w/h * EGL_DISPLAY_SCALING 1616 int wr = surface->getHorizontalResolution(); 1617 int hr = surface->getVerticalResolution(); 1618 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1619 } break; 1620 case EGL_SWAP_BEHAVIOR: 1621 *value = surface->getSwapBehavior(); 1622 break; 1623 default: 1624 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1625 } 1626 return ret; 1627} 1628 1629EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1630 EGLContext share_list, const EGLint *attrib_list) 1631{ 1632 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1633 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1634 1635 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1636 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1637 1638 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1639 c->flags = egl_context_t::NEVER_CURRENT; 1640 c->dpy = dpy; 1641 c->config = config; 1642 c->read = 0; 1643 c->draw = 0; 1644 return (EGLContext)gl; 1645} 1646 1647EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1648{ 1649 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1650 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1651 egl_context_t* c = egl_context_t::context(ctx); 1652 if (c->flags & egl_context_t::IS_CURRENT) 1653 setGlThreadSpecific(0); 1654 ogles_uninit((ogles_context_t*)ctx); 1655 return EGL_TRUE; 1656} 1657 1658EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1659 EGLSurface read, EGLContext ctx) 1660{ 1661 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1662 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1663 if (draw) { 1664 egl_surface_t* s = (egl_surface_t*)draw; 1665 if (!s->isValid()) 1666 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1667 if (s->dpy != dpy) 1668 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1669 // TODO: check that draw is compatible with the context 1670 } 1671 if (read && read!=draw) { 1672 egl_surface_t* s = (egl_surface_t*)read; 1673 if (!s->isValid()) 1674 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1675 if (s->dpy != dpy) 1676 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1677 // TODO: check that read is compatible with the context 1678 } 1679 1680 EGLContext current_ctx = EGL_NO_CONTEXT; 1681 1682 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1683 return setError(EGL_BAD_MATCH, EGL_FALSE); 1684 1685 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1686 return setError(EGL_BAD_MATCH, EGL_FALSE); 1687 1688 if (ctx == EGL_NO_CONTEXT) { 1689 // if we're detaching, we need the current context 1690 current_ctx = (EGLContext)getGlThreadSpecific(); 1691 } else { 1692 egl_context_t* c = egl_context_t::context(ctx); 1693 egl_surface_t* d = (egl_surface_t*)draw; 1694 egl_surface_t* r = (egl_surface_t*)read; 1695 if ((d && d->ctx && d->ctx != ctx) || 1696 (r && r->ctx && r->ctx != ctx)) { 1697 // one of the surface is bound to a context in another thread 1698 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1699 } 1700 } 1701 1702 ogles_context_t* gl = (ogles_context_t*)ctx; 1703 if (makeCurrent(gl) == 0) { 1704 if (ctx) { 1705 egl_context_t* c = egl_context_t::context(ctx); 1706 egl_surface_t* d = (egl_surface_t*)draw; 1707 egl_surface_t* r = (egl_surface_t*)read; 1708 1709 if (c->draw) { 1710 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1711 s->disconnect(); 1712 } 1713 if (c->read) { 1714 // FIXME: unlock/disconnect the read surface too 1715 } 1716 1717 c->draw = draw; 1718 c->read = read; 1719 1720 if (c->flags & egl_context_t::NEVER_CURRENT) { 1721 c->flags &= ~egl_context_t::NEVER_CURRENT; 1722 GLint w = 0; 1723 GLint h = 0; 1724 if (draw) { 1725 w = d->getWidth(); 1726 h = d->getHeight(); 1727 } 1728 ogles_surfaceport(gl, 0, 0); 1729 ogles_viewport(gl, 0, 0, w, h); 1730 ogles_scissor(gl, 0, 0, w, h); 1731 } 1732 if (d) { 1733 if (d->connect() == EGL_FALSE) { 1734 return EGL_FALSE; 1735 } 1736 d->ctx = ctx; 1737 d->bindDrawSurface(gl); 1738 } 1739 if (r) { 1740 // FIXME: lock/connect the read surface too 1741 r->ctx = ctx; 1742 r->bindReadSurface(gl); 1743 } 1744 } else { 1745 // if surfaces were bound to the context bound to this thread 1746 // mark then as unbound. 1747 if (current_ctx) { 1748 egl_context_t* c = egl_context_t::context(current_ctx); 1749 egl_surface_t* d = (egl_surface_t*)c->draw; 1750 egl_surface_t* r = (egl_surface_t*)c->read; 1751 if (d) { 1752 c->draw = 0; 1753 d->ctx = EGL_NO_CONTEXT; 1754 d->disconnect(); 1755 } 1756 if (r) { 1757 c->read = 0; 1758 r->ctx = EGL_NO_CONTEXT; 1759 // FIXME: unlock/disconnect the read surface too 1760 } 1761 } 1762 } 1763 return EGL_TRUE; 1764 } 1765 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1766} 1767 1768EGLContext eglGetCurrentContext(void) 1769{ 1770 // eglGetCurrentContext returns the current EGL rendering context, 1771 // as specified by eglMakeCurrent. If no context is current, 1772 // EGL_NO_CONTEXT is returned. 1773 return (EGLContext)getGlThreadSpecific(); 1774} 1775 1776EGLSurface eglGetCurrentSurface(EGLint readdraw) 1777{ 1778 // eglGetCurrentSurface returns the read or draw surface attached 1779 // to the current EGL rendering context, as specified by eglMakeCurrent. 1780 // If no context is current, EGL_NO_SURFACE is returned. 1781 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1782 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1783 egl_context_t* c = egl_context_t::context(ctx); 1784 if (readdraw == EGL_READ) { 1785 return c->read; 1786 } else if (readdraw == EGL_DRAW) { 1787 return c->draw; 1788 } 1789 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1790} 1791 1792EGLDisplay eglGetCurrentDisplay(void) 1793{ 1794 // eglGetCurrentDisplay returns the current EGL display connection 1795 // for the current EGL rendering context, as specified by eglMakeCurrent. 1796 // If no context is current, EGL_NO_DISPLAY is returned. 1797 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1798 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1799 egl_context_t* c = egl_context_t::context(ctx); 1800 return c->dpy; 1801} 1802 1803EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1804 EGLint attribute, EGLint *value) 1805{ 1806 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1807 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1808 egl_context_t* c = egl_context_t::context(ctx); 1809 switch (attribute) { 1810 case EGL_CONFIG_ID: 1811 // Returns the ID of the EGL frame buffer configuration with 1812 // respect to which the context was created 1813 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1814 } 1815 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1816} 1817 1818EGLBoolean eglWaitGL(void) 1819{ 1820 return EGL_TRUE; 1821} 1822 1823EGLBoolean eglWaitNative(EGLint engine) 1824{ 1825 return EGL_TRUE; 1826} 1827 1828EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1829{ 1830 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1831 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1832 1833 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1834 if (!d->isValid()) 1835 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1836 if (d->dpy != dpy) 1837 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1838 1839 // post the surface 1840 d->swapBuffers(); 1841 1842 // if it's bound to a context, update the buffer 1843 if (d->ctx != EGL_NO_CONTEXT) { 1844 d->bindDrawSurface((ogles_context_t*)d->ctx); 1845 // if this surface is also the read surface of the context 1846 // it is bound to, make sure to update the read buffer as well. 1847 // The EGL spec is a little unclear about this. 1848 egl_context_t* c = egl_context_t::context(d->ctx); 1849 if (c->read == draw) { 1850 d->bindReadSurface((ogles_context_t*)d->ctx); 1851 } 1852 } 1853 1854 return EGL_TRUE; 1855} 1856 1857EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1858 NativePixmapType target) 1859{ 1860 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1861 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1862 // TODO: eglCopyBuffers() 1863 return EGL_FALSE; 1864} 1865 1866EGLint eglGetError(void) 1867{ 1868 return getError(); 1869} 1870 1871const char* eglQueryString(EGLDisplay dpy, EGLint name) 1872{ 1873 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1874 return setError(EGL_BAD_DISPLAY, (const char*)0); 1875 1876 switch (name) { 1877 case EGL_VENDOR: 1878 return gVendorString; 1879 case EGL_VERSION: 1880 return gVersionString; 1881 case EGL_EXTENSIONS: 1882 return gExtensionsString; 1883 case EGL_CLIENT_APIS: 1884 return gClientApiString; 1885 } 1886 return setError(EGL_BAD_PARAMETER, (const char *)0); 1887} 1888 1889// ---------------------------------------------------------------------------- 1890// EGL 1.1 1891// ---------------------------------------------------------------------------- 1892 1893EGLBoolean eglSurfaceAttrib( 1894 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1895{ 1896 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1897 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1898 // TODO: eglSurfaceAttrib() 1899 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1900} 1901 1902EGLBoolean eglBindTexImage( 1903 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1904{ 1905 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1906 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1907 // TODO: eglBindTexImage() 1908 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1909} 1910 1911EGLBoolean eglReleaseTexImage( 1912 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1913{ 1914 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1915 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1916 // TODO: eglReleaseTexImage() 1917 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1918} 1919 1920EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1921{ 1922 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1923 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1924 // TODO: eglSwapInterval() 1925 return EGL_TRUE; 1926} 1927 1928// ---------------------------------------------------------------------------- 1929// EGL 1.2 1930// ---------------------------------------------------------------------------- 1931 1932EGLBoolean eglBindAPI(EGLenum api) 1933{ 1934 if (api != EGL_OPENGL_ES_API) 1935 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1936 return EGL_TRUE; 1937} 1938 1939EGLenum eglQueryAPI(void) 1940{ 1941 return EGL_OPENGL_ES_API; 1942} 1943 1944EGLBoolean eglWaitClient(void) 1945{ 1946 glFinish(); 1947 return EGL_TRUE; 1948} 1949 1950EGLBoolean eglReleaseThread(void) 1951{ 1952 // TODO: eglReleaseThread() 1953 return EGL_TRUE; 1954} 1955 1956EGLSurface eglCreatePbufferFromClientBuffer( 1957 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 1958 EGLConfig config, const EGLint *attrib_list) 1959{ 1960 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1961 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1962 // TODO: eglCreatePbufferFromClientBuffer() 1963 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 1964} 1965 1966// ---------------------------------------------------------------------------- 1967// EGL_EGLEXT_VERSION 3 1968// ---------------------------------------------------------------------------- 1969 1970void (*eglGetProcAddress (const char *procname))() 1971{ 1972 extention_map_t const * const map = gExtentionMap; 1973 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 1974 if (!strcmp(procname, map[i].name)) { 1975 return map[i].address; 1976 } 1977 } 1978 return NULL; 1979} 1980 1981EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 1982 const EGLint *attrib_list) 1983{ 1984 EGLBoolean result = EGL_FALSE; 1985 return result; 1986} 1987 1988EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 1989{ 1990 EGLBoolean result = EGL_FALSE; 1991 return result; 1992} 1993 1994EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 1995 EGLClientBuffer buffer, const EGLint *attrib_list) 1996{ 1997 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 1998 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 1999 } 2000 if (ctx != EGL_NO_CONTEXT) { 2001 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2002 } 2003 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2004 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2005 } 2006 2007 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 2008 2009 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2010 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2011 2012 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2013 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2014 2015 switch (native_buffer->format) { 2016 case HAL_PIXEL_FORMAT_RGBA_8888: 2017 case HAL_PIXEL_FORMAT_RGBX_8888: 2018 case HAL_PIXEL_FORMAT_RGB_888: 2019 case HAL_PIXEL_FORMAT_RGB_565: 2020 case HAL_PIXEL_FORMAT_BGRA_8888: 2021 case HAL_PIXEL_FORMAT_RGBA_5551: 2022 case HAL_PIXEL_FORMAT_RGBA_4444: 2023 break; 2024 default: 2025 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2026 } 2027 2028 native_buffer->common.incRef(&native_buffer->common); 2029 return (EGLImageKHR)native_buffer; 2030} 2031 2032EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2033{ 2034 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2035 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2036 } 2037 2038 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 2039 2040 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2041 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2042 2043 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2044 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2045 2046 native_buffer->common.decRef(&native_buffer->common); 2047 2048 return EGL_TRUE; 2049} 2050 2051// ---------------------------------------------------------------------------- 2052// ANDROID extensions 2053// ---------------------------------------------------------------------------- 2054 2055EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2056 EGLint left, EGLint top, EGLint width, EGLint height) 2057{ 2058 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2059 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2060 2061 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2062 if (!d->isValid()) 2063 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2064 if (d->dpy != dpy) 2065 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2066 2067 // post the surface 2068 d->setSwapRectangle(left, top, width, height); 2069 2070 return EGL_TRUE; 2071} 2072