egl.cpp revision 64990fc0b9a50cef8a749eadc5a7fde7d400c5ac
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 <atomic> 20#include <errno.h> 21#include <fcntl.h> 22#include <stdio.h> 23#include <stdlib.h> 24#include <string.h> 25#include <sys/ioctl.h> 26#include <sys/types.h> 27#include <sys/mman.h> 28#include <unistd.h> 29 30#include <android/log.h> 31 32#include <utils/threads.h> 33#include <ui/ANativeObjectBase.h> 34#include <ui/Fence.h> 35#include <ui/GraphicBufferMapper.h> 36 37#include <EGL/egl.h> 38#include <EGL/eglext.h> 39#include <GLES/gl.h> 40#include <GLES/glext.h> 41 42#include <pixelflinger/format.h> 43#include <pixelflinger/pixelflinger.h> 44 45#include "context.h" 46#include "state.h" 47#include "texture.h" 48#include "matrix.h" 49 50#undef NELEM 51#define NELEM(x) (sizeof(x)/sizeof(*(x))) 52 53// ---------------------------------------------------------------------------- 54 55EGLBoolean EGLAPI eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 56 EGLint left, EGLint top, EGLint width, EGLint height); 57 58// ---------------------------------------------------------------------------- 59namespace android { 60 61// ---------------------------------------------------------------------------- 62 63const unsigned int NUM_DISPLAYS = 1; 64 65static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER; 66static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER; 67static pthread_key_t gEGLErrorKey = -1; 68#ifndef __ANDROID__ 69namespace gl { 70pthread_key_t gGLKey = -1; 71}; // namespace gl 72#endif 73 74template<typename T> 75static T setError(GLint error, T returnValue) { 76 if (ggl_unlikely(gEGLErrorKey == -1)) { 77 pthread_mutex_lock(&gErrorKeyMutex); 78 if (gEGLErrorKey == -1) 79 pthread_key_create(&gEGLErrorKey, NULL); 80 pthread_mutex_unlock(&gErrorKeyMutex); 81 } 82 pthread_setspecific(gEGLErrorKey, (void*)(uintptr_t)error); 83 return returnValue; 84} 85 86static GLint getError() { 87 if (ggl_unlikely(gEGLErrorKey == -1)) 88 return EGL_SUCCESS; 89 GLint error = (GLint)(uintptr_t)pthread_getspecific(gEGLErrorKey); 90 if (error == 0) { 91 // The TLS key has been created by another thread, but the value for 92 // this thread has not been initialized. 93 return EGL_SUCCESS; 94 } 95 pthread_setspecific(gEGLErrorKey, (void*)(uintptr_t)EGL_SUCCESS); 96 return error; 97} 98 99// ---------------------------------------------------------------------------- 100 101struct egl_display_t 102{ 103 egl_display_t() : type(0), initialized(0) { } 104 105 static egl_display_t& get_display(EGLDisplay dpy); 106 107 static EGLBoolean is_valid(EGLDisplay dpy) { 108 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE; 109 } 110 111 NativeDisplayType type; 112 std::atomic_size_t initialized; 113}; 114 115static egl_display_t gDisplays[NUM_DISPLAYS]; 116 117egl_display_t& egl_display_t::get_display(EGLDisplay dpy) { 118 return gDisplays[uintptr_t(dpy)-1U]; 119} 120 121struct egl_context_t { 122 enum { 123 IS_CURRENT = 0x00010000, 124 NEVER_CURRENT = 0x00020000 125 }; 126 uint32_t flags; 127 EGLDisplay dpy; 128 EGLConfig config; 129 EGLSurface read; 130 EGLSurface draw; 131 132 static inline egl_context_t* context(EGLContext ctx) { 133 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx); 134 return static_cast<egl_context_t*>(gl->rasterizer.base); 135 } 136}; 137 138// ---------------------------------------------------------------------------- 139 140struct egl_surface_t 141{ 142 enum { 143 PAGE_FLIP = 0x00000001, 144 MAGIC = 0x31415265 145 }; 146 147 uint32_t magic; 148 EGLDisplay dpy; 149 EGLConfig config; 150 EGLContext ctx; 151 bool zombie; 152 153 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat); 154 virtual ~egl_surface_t(); 155 bool isValid() const; 156 virtual bool initCheck() const = 0; 157 158 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 159 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 160 virtual EGLBoolean connect() { return EGL_TRUE; } 161 virtual void disconnect() {} 162 virtual EGLint getWidth() const = 0; 163 virtual EGLint getHeight() const = 0; 164 165 virtual EGLint getHorizontalResolution() const; 166 virtual EGLint getVerticalResolution() const; 167 virtual EGLint getRefreshRate() const; 168 virtual EGLint getSwapBehavior() const; 169 virtual EGLBoolean swapBuffers(); 170 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 171protected: 172 GGLSurface depth; 173}; 174 175egl_surface_t::egl_surface_t(EGLDisplay dpy, 176 EGLConfig config, 177 int32_t depthFormat) 178 : magic(MAGIC), dpy(dpy), config(config), ctx(0), zombie(false) 179{ 180 depth.version = sizeof(GGLSurface); 181 depth.data = 0; 182 depth.format = depthFormat; 183} 184egl_surface_t::~egl_surface_t() 185{ 186 magic = 0; 187 free(depth.data); 188} 189bool egl_surface_t::isValid() const { 190 ALOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this); 191 return magic == MAGIC; 192} 193 194EGLBoolean egl_surface_t::swapBuffers() { 195 return EGL_FALSE; 196} 197EGLint egl_surface_t::getHorizontalResolution() const { 198 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 199} 200EGLint egl_surface_t::getVerticalResolution() const { 201 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 202} 203EGLint egl_surface_t::getRefreshRate() const { 204 return (60 * EGL_DISPLAY_SCALING); 205} 206EGLint egl_surface_t::getSwapBehavior() const { 207 return EGL_BUFFER_PRESERVED; 208} 209EGLBoolean egl_surface_t::setSwapRectangle( 210 EGLint /*l*/, EGLint /*t*/, EGLint /*w*/, EGLint /*h*/) 211{ 212 return EGL_FALSE; 213} 214 215// ---------------------------------------------------------------------------- 216 217struct egl_window_surface_v2_t : public egl_surface_t 218{ 219 egl_window_surface_v2_t( 220 EGLDisplay dpy, EGLConfig config, 221 int32_t depthFormat, 222 ANativeWindow* window); 223 224 ~egl_window_surface_v2_t(); 225 226 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails 227 virtual EGLBoolean swapBuffers(); 228 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 229 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 230 virtual EGLBoolean connect(); 231 virtual void disconnect(); 232 virtual EGLint getWidth() const { return width; } 233 virtual EGLint getHeight() const { return height; } 234 virtual EGLint getHorizontalResolution() const; 235 virtual EGLint getVerticalResolution() const; 236 virtual EGLint getRefreshRate() const; 237 virtual EGLint getSwapBehavior() const; 238 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 239 240private: 241 status_t lock(ANativeWindowBuffer* buf, int usage, void** vaddr); 242 status_t unlock(ANativeWindowBuffer* buf); 243 ANativeWindow* nativeWindow; 244 ANativeWindowBuffer* buffer; 245 ANativeWindowBuffer* previousBuffer; 246 int width; 247 int height; 248 void* bits; 249 GGLFormat const* pixelFormatTable; 250 251 struct Rect { 252 inline Rect() { }; 253 inline Rect(int32_t w, int32_t h) 254 : left(0), top(0), right(w), bottom(h) { } 255 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 256 : left(l), top(t), right(r), bottom(b) { } 257 Rect& andSelf(const Rect& r) { 258 left = max(left, r.left); 259 top = max(top, r.top); 260 right = min(right, r.right); 261 bottom = min(bottom, r.bottom); 262 return *this; 263 } 264 bool isEmpty() const { 265 return (left>=right || top>=bottom); 266 } 267 void dump(char const* what) { 268 ALOGD("%s { %5d, %5d, w=%5d, h=%5d }", 269 what, left, top, right-left, bottom-top); 270 } 271 272 int32_t left; 273 int32_t top; 274 int32_t right; 275 int32_t bottom; 276 }; 277 278 struct Region { 279 inline Region() : count(0) { } 280 typedef Rect const* const_iterator; 281 const_iterator begin() const { return storage; } 282 const_iterator end() const { return storage+count; } 283 static Region subtract(const Rect& lhs, const Rect& rhs) { 284 Region reg; 285 Rect* storage = reg.storage; 286 if (!lhs.isEmpty()) { 287 if (lhs.top < rhs.top) { // top rect 288 storage->left = lhs.left; 289 storage->top = lhs.top; 290 storage->right = lhs.right; 291 storage->bottom = rhs.top; 292 storage++; 293 } 294 const int32_t top = max(lhs.top, rhs.top); 295 const int32_t bot = min(lhs.bottom, rhs.bottom); 296 if (top < bot) { 297 if (lhs.left < rhs.left) { // left-side rect 298 storage->left = lhs.left; 299 storage->top = top; 300 storage->right = rhs.left; 301 storage->bottom = bot; 302 storage++; 303 } 304 if (lhs.right > rhs.right) { // right-side rect 305 storage->left = rhs.right; 306 storage->top = top; 307 storage->right = lhs.right; 308 storage->bottom = bot; 309 storage++; 310 } 311 } 312 if (lhs.bottom > rhs.bottom) { // bottom rect 313 storage->left = lhs.left; 314 storage->top = rhs.bottom; 315 storage->right = lhs.right; 316 storage->bottom = lhs.bottom; 317 storage++; 318 } 319 reg.count = storage - reg.storage; 320 } 321 return reg; 322 } 323 bool isEmpty() const { 324 return count<=0; 325 } 326 private: 327 Rect storage[4]; 328 ssize_t count; 329 }; 330 331 void copyBlt( 332 ANativeWindowBuffer* dst, void* dst_vaddr, 333 ANativeWindowBuffer* src, void const* src_vaddr, 334 const Region& clip); 335 336 Rect dirtyRegion; 337 Rect oldDirtyRegion; 338}; 339 340egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 341 EGLConfig config, 342 int32_t depthFormat, 343 ANativeWindow* window) 344 : egl_surface_t(dpy, config, depthFormat), 345 nativeWindow(window), buffer(0), previousBuffer(0), bits(NULL) 346{ 347 348 pixelFormatTable = gglGetPixelFormatTable(); 349 350 // keep a reference on the window 351 nativeWindow->common.incRef(&nativeWindow->common); 352 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width); 353 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height); 354} 355 356egl_window_surface_v2_t::~egl_window_surface_v2_t() { 357 if (buffer) { 358 buffer->common.decRef(&buffer->common); 359 } 360 if (previousBuffer) { 361 previousBuffer->common.decRef(&previousBuffer->common); 362 } 363 nativeWindow->common.decRef(&nativeWindow->common); 364} 365 366EGLBoolean egl_window_surface_v2_t::connect() 367{ 368 // we're intending to do software rendering 369 native_window_set_usage(nativeWindow, 370 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); 371 372 // dequeue a buffer 373 int fenceFd = -1; 374 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer, 375 &fenceFd) != NO_ERROR) { 376 return setError(EGL_BAD_ALLOC, EGL_FALSE); 377 } 378 379 // wait for the buffer 380 sp<Fence> fence(new Fence(fenceFd)); 381 if (fence->wait(Fence::TIMEOUT_NEVER) != NO_ERROR) { 382 nativeWindow->cancelBuffer(nativeWindow, buffer, fenceFd); 383 return setError(EGL_BAD_ALLOC, EGL_FALSE); 384 } 385 386 // allocate a corresponding depth-buffer 387 width = buffer->width; 388 height = buffer->height; 389 if (depth.format) { 390 depth.width = width; 391 depth.height = height; 392 depth.stride = depth.width; // use the width here 393 uint64_t allocSize = static_cast<uint64_t>(depth.stride) * 394 static_cast<uint64_t>(depth.height) * 2; 395 if (depth.stride < 0 || depth.height > INT_MAX || 396 allocSize > UINT32_MAX) { 397 return setError(EGL_BAD_ALLOC, EGL_FALSE); 398 } 399 depth.data = (GGLubyte*)malloc(allocSize); 400 if (depth.data == 0) { 401 return setError(EGL_BAD_ALLOC, EGL_FALSE); 402 } 403 } 404 405 // keep a reference on the buffer 406 buffer->common.incRef(&buffer->common); 407 408 // pin the buffer down 409 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 410 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 411 ALOGE("connect() failed to lock buffer %p (%ux%u)", 412 buffer, buffer->width, buffer->height); 413 return setError(EGL_BAD_ACCESS, EGL_FALSE); 414 // FIXME: we should make sure we're not accessing the buffer anymore 415 } 416 return EGL_TRUE; 417} 418 419void egl_window_surface_v2_t::disconnect() 420{ 421 if (buffer && bits) { 422 bits = NULL; 423 unlock(buffer); 424 } 425 if (buffer) { 426 nativeWindow->cancelBuffer(nativeWindow, buffer, -1); 427 buffer->common.decRef(&buffer->common); 428 buffer = 0; 429 } 430 if (previousBuffer) { 431 previousBuffer->common.decRef(&previousBuffer->common); 432 previousBuffer = 0; 433 } 434} 435 436status_t egl_window_surface_v2_t::lock( 437 ANativeWindowBuffer* buf, int usage, void** vaddr) 438{ 439 auto& mapper = GraphicBufferMapper::get(); 440 return mapper.lock(buf->handle, usage, 441 android::Rect(buf->width, buf->height), vaddr); 442} 443 444status_t egl_window_surface_v2_t::unlock(ANativeWindowBuffer* buf) 445{ 446 if (!buf) return BAD_VALUE; 447 auto& mapper = GraphicBufferMapper::get(); 448 return mapper.unlock(buf->handle); 449} 450 451void egl_window_surface_v2_t::copyBlt( 452 ANativeWindowBuffer* dst, void* dst_vaddr, 453 ANativeWindowBuffer* src, void const* src_vaddr, 454 const Region& clip) 455{ 456 // NOTE: dst and src must be the same format 457 458 Region::const_iterator cur = clip.begin(); 459 Region::const_iterator end = clip.end(); 460 461 const size_t bpp = pixelFormatTable[src->format].size; 462 const size_t dbpr = dst->stride * bpp; 463 const size_t sbpr = src->stride * bpp; 464 465 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 466 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 467 468 while (cur != end) { 469 const Rect& r(*cur++); 470 ssize_t w = r.right - r.left; 471 ssize_t h = r.bottom - r.top; 472 if (w <= 0 || h<=0) continue; 473 size_t size = w * bpp; 474 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 475 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 476 if (dbpr==sbpr && size==sbpr) { 477 size *= h; 478 h = 1; 479 } 480 do { 481 memcpy(d, s, size); 482 d += dbpr; 483 s += sbpr; 484 } while (--h > 0); 485 } 486} 487 488EGLBoolean egl_window_surface_v2_t::swapBuffers() 489{ 490 if (!buffer) { 491 return setError(EGL_BAD_ACCESS, EGL_FALSE); 492 } 493 494 /* 495 * Handle eglSetSwapRectangleANDROID() 496 * We copyback from the front buffer 497 */ 498 if (!dirtyRegion.isEmpty()) { 499 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 500 if (previousBuffer) { 501 // This was const Region copyBack, but that causes an 502 // internal compile error on simulator builds 503 /*const*/ Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 504 if (!copyBack.isEmpty()) { 505 void* prevBits; 506 if (lock(previousBuffer, 507 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 508 // copy from previousBuffer to buffer 509 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 510 unlock(previousBuffer); 511 } 512 } 513 } 514 oldDirtyRegion = dirtyRegion; 515 } 516 517 if (previousBuffer) { 518 previousBuffer->common.decRef(&previousBuffer->common); 519 previousBuffer = 0; 520 } 521 522 unlock(buffer); 523 previousBuffer = buffer; 524 nativeWindow->queueBuffer(nativeWindow, buffer, -1); 525 buffer = 0; 526 527 // dequeue a new buffer 528 int fenceFd = -1; 529 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer, &fenceFd) == NO_ERROR) { 530 sp<Fence> fence(new Fence(fenceFd)); 531 if (fence->wait(Fence::TIMEOUT_NEVER)) { 532 nativeWindow->cancelBuffer(nativeWindow, buffer, fenceFd); 533 return setError(EGL_BAD_ALLOC, EGL_FALSE); 534 } 535 536 // reallocate the depth-buffer if needed 537 if ((width != buffer->width) || (height != buffer->height)) { 538 // TODO: we probably should reset the swap rect here 539 // if the window size has changed 540 width = buffer->width; 541 height = buffer->height; 542 if (depth.data) { 543 free(depth.data); 544 depth.width = width; 545 depth.height = height; 546 depth.stride = buffer->stride; 547 uint64_t allocSize = static_cast<uint64_t>(depth.stride) * 548 static_cast<uint64_t>(depth.height) * 2; 549 if (depth.stride < 0 || depth.height > INT_MAX || 550 allocSize > UINT32_MAX) { 551 setError(EGL_BAD_ALLOC, EGL_FALSE); 552 return EGL_FALSE; 553 } 554 depth.data = (GGLubyte*)malloc(allocSize); 555 if (depth.data == 0) { 556 setError(EGL_BAD_ALLOC, EGL_FALSE); 557 return EGL_FALSE; 558 } 559 } 560 } 561 562 // keep a reference on the buffer 563 buffer->common.incRef(&buffer->common); 564 565 // finally pin the buffer down 566 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 567 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 568 ALOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 569 buffer, buffer->width, buffer->height); 570 return setError(EGL_BAD_ACCESS, EGL_FALSE); 571 // FIXME: we should make sure we're not accessing the buffer anymore 572 } 573 } else { 574 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE); 575 } 576 577 return EGL_TRUE; 578} 579 580EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 581 EGLint l, EGLint t, EGLint w, EGLint h) 582{ 583 dirtyRegion = Rect(l, t, l+w, t+h); 584 return EGL_TRUE; 585} 586 587EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 588{ 589 GGLSurface buffer; 590 buffer.version = sizeof(GGLSurface); 591 buffer.width = this->buffer->width; 592 buffer.height = this->buffer->height; 593 buffer.stride = this->buffer->stride; 594 buffer.data = (GGLubyte*)bits; 595 buffer.format = this->buffer->format; 596 gl->rasterizer.procs.colorBuffer(gl, &buffer); 597 if (depth.data != gl->rasterizer.state.buffers.depth.data) 598 gl->rasterizer.procs.depthBuffer(gl, &depth); 599 600 return EGL_TRUE; 601} 602EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 603{ 604 GGLSurface buffer; 605 buffer.version = sizeof(GGLSurface); 606 buffer.width = this->buffer->width; 607 buffer.height = this->buffer->height; 608 buffer.stride = this->buffer->stride; 609 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 610 buffer.format = this->buffer->format; 611 gl->rasterizer.procs.readBuffer(gl, &buffer); 612 return EGL_TRUE; 613} 614EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 615 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 616} 617EGLint egl_window_surface_v2_t::getVerticalResolution() const { 618 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 619} 620EGLint egl_window_surface_v2_t::getRefreshRate() const { 621 return (60 * EGL_DISPLAY_SCALING); // FIXME 622} 623EGLint egl_window_surface_v2_t::getSwapBehavior() const 624{ 625 /* 626 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 627 * the content of the swapped buffer. 628 * 629 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 630 * 631 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 632 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 633 * is, everything outside of this area is preserved. 634 * 635 * This implementation of EGL assumes the later case. 636 * 637 */ 638 639 return EGL_BUFFER_DESTROYED; 640} 641 642// ---------------------------------------------------------------------------- 643 644struct egl_pixmap_surface_t : public egl_surface_t 645{ 646 egl_pixmap_surface_t( 647 EGLDisplay dpy, EGLConfig config, 648 int32_t depthFormat, 649 egl_native_pixmap_t const * pixmap); 650 651 virtual ~egl_pixmap_surface_t() { } 652 653 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 654 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 655 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 656 virtual EGLint getWidth() const { return nativePixmap.width; } 657 virtual EGLint getHeight() const { return nativePixmap.height; } 658private: 659 egl_native_pixmap_t nativePixmap; 660}; 661 662egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 663 EGLConfig config, 664 int32_t depthFormat, 665 egl_native_pixmap_t const * pixmap) 666 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 667{ 668 if (depthFormat) { 669 depth.width = pixmap->width; 670 depth.height = pixmap->height; 671 depth.stride = depth.width; // use the width here 672 uint64_t allocSize = static_cast<uint64_t>(depth.stride) * 673 static_cast<uint64_t>(depth.height) * 2; 674 if (depth.stride < 0 || depth.height > INT_MAX || 675 allocSize > UINT32_MAX) { 676 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 677 return; 678 } 679 depth.data = (GGLubyte*)malloc(allocSize); 680 if (depth.data == 0) { 681 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 682 } 683 } 684} 685EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 686{ 687 GGLSurface buffer; 688 buffer.version = sizeof(GGLSurface); 689 buffer.width = nativePixmap.width; 690 buffer.height = nativePixmap.height; 691 buffer.stride = nativePixmap.stride; 692 buffer.data = nativePixmap.data; 693 buffer.format = nativePixmap.format; 694 695 gl->rasterizer.procs.colorBuffer(gl, &buffer); 696 if (depth.data != gl->rasterizer.state.buffers.depth.data) 697 gl->rasterizer.procs.depthBuffer(gl, &depth); 698 return EGL_TRUE; 699} 700EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 701{ 702 GGLSurface buffer; 703 buffer.version = sizeof(GGLSurface); 704 buffer.width = nativePixmap.width; 705 buffer.height = nativePixmap.height; 706 buffer.stride = nativePixmap.stride; 707 buffer.data = nativePixmap.data; 708 buffer.format = nativePixmap.format; 709 gl->rasterizer.procs.readBuffer(gl, &buffer); 710 return EGL_TRUE; 711} 712 713// ---------------------------------------------------------------------------- 714 715struct egl_pbuffer_surface_t : public egl_surface_t 716{ 717 egl_pbuffer_surface_t( 718 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 719 int32_t w, int32_t h, int32_t f); 720 721 virtual ~egl_pbuffer_surface_t(); 722 723 virtual bool initCheck() const { return pbuffer.data != 0; } 724 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 725 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 726 virtual EGLint getWidth() const { return pbuffer.width; } 727 virtual EGLint getHeight() const { return pbuffer.height; } 728private: 729 GGLSurface pbuffer; 730}; 731 732egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 733 EGLConfig config, int32_t depthFormat, 734 int32_t w, int32_t h, int32_t f) 735 : egl_surface_t(dpy, config, depthFormat) 736{ 737 size_t size = w*h; 738 switch (f) { 739 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 740 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 741 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 742 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break; 743 default: 744 ALOGE("incompatible pixel format for pbuffer (format=%d)", f); 745 pbuffer.data = 0; 746 break; 747 } 748 pbuffer.version = sizeof(GGLSurface); 749 pbuffer.width = w; 750 pbuffer.height = h; 751 pbuffer.stride = w; 752 pbuffer.data = (GGLubyte*)malloc(size); 753 pbuffer.format = f; 754 755 if (depthFormat) { 756 depth.width = pbuffer.width; 757 depth.height = pbuffer.height; 758 depth.stride = depth.width; // use the width here 759 uint64_t allocSize = static_cast<uint64_t>(depth.stride) * 760 static_cast<uint64_t>(depth.height) * 2; 761 if (depth.stride < 0 || depth.height > INT_MAX || 762 allocSize > UINT32_MAX) { 763 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 764 return; 765 } 766 depth.data = (GGLubyte*)malloc(allocSize); 767 if (depth.data == 0) { 768 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 769 return; 770 } 771 } 772} 773egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 774 free(pbuffer.data); 775} 776EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 777{ 778 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 779 if (depth.data != gl->rasterizer.state.buffers.depth.data) 780 gl->rasterizer.procs.depthBuffer(gl, &depth); 781 return EGL_TRUE; 782} 783EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 784{ 785 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 786 return EGL_TRUE; 787} 788 789// ---------------------------------------------------------------------------- 790 791struct config_pair_t { 792 GLint key; 793 GLint value; 794}; 795 796struct configs_t { 797 const config_pair_t* array; 798 int size; 799}; 800 801struct config_management_t { 802 GLint key; 803 bool (*match)(GLint reqValue, GLint confValue); 804 static bool atLeast(GLint reqValue, GLint confValue) { 805 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 806 } 807 static bool exact(GLint reqValue, GLint confValue) { 808 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 809 } 810 static bool mask(GLint reqValue, GLint confValue) { 811 return (confValue & reqValue) == reqValue; 812 } 813 static bool ignore(GLint /*reqValue*/, GLint /*confValue*/) { 814 return true; 815 } 816}; 817 818// ---------------------------------------------------------------------------- 819 820#define VERSION_MAJOR 1 821#define VERSION_MINOR 2 822static char const * const gVendorString = "Google Inc."; 823static char const * const gVersionString = "1.2 Android Driver 1.2.0"; 824static char const * const gClientApiString = "OpenGL_ES"; 825static char const * const gExtensionsString = 826 "EGL_KHR_fence_sync " 827 "EGL_KHR_image_base " 828 // "KHR_image_pixmap " 829 "EGL_ANDROID_image_native_buffer " 830 "EGL_ANDROID_swap_rectangle " 831 ; 832 833// ---------------------------------------------------------------------------- 834 835struct extention_map_t { 836 const char * const name; 837 __eglMustCastToProperFunctionPointerType address; 838}; 839 840static const extention_map_t gExtentionMap[] = { 841 { "glDrawTexsOES", 842 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 843 { "glDrawTexiOES", 844 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 845 { "glDrawTexfOES", 846 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 847 { "glDrawTexxOES", 848 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 849 { "glDrawTexsvOES", 850 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 851 { "glDrawTexivOES", 852 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 853 { "glDrawTexfvOES", 854 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 855 { "glDrawTexxvOES", 856 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 857 { "glQueryMatrixxOES", 858 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 859 { "glEGLImageTargetTexture2DOES", 860 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 861 { "glEGLImageTargetRenderbufferStorageOES", 862 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 863 { "glClipPlanef", 864 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 865 { "glClipPlanex", 866 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 867 { "glBindBuffer", 868 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 869 { "glBufferData", 870 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 871 { "glBufferSubData", 872 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 873 { "glDeleteBuffers", 874 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 875 { "glGenBuffers", 876 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 877 { "eglCreateImageKHR", 878 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 879 { "eglDestroyImageKHR", 880 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 881 { "eglCreateSyncKHR", 882 (__eglMustCastToProperFunctionPointerType)&eglCreateSyncKHR }, 883 { "eglDestroySyncKHR", 884 (__eglMustCastToProperFunctionPointerType)&eglDestroySyncKHR }, 885 { "eglClientWaitSyncKHR", 886 (__eglMustCastToProperFunctionPointerType)&eglClientWaitSyncKHR }, 887 { "eglGetSyncAttribKHR", 888 (__eglMustCastToProperFunctionPointerType)&eglGetSyncAttribKHR }, 889 { "eglSetSwapRectangleANDROID", 890 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 891}; 892 893/* 894 * In the lists below, attributes names MUST be sorted. 895 * Additionally, all configs must be sorted according to 896 * the EGL specification. 897 */ 898 899static config_pair_t const config_base_attribute_list[] = { 900 { EGL_STENCIL_SIZE, 0 }, 901 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 902 { EGL_LEVEL, 0 }, 903 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 904 { EGL_MAX_PBUFFER_PIXELS, 905 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 906 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 907 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 908 { EGL_NATIVE_VISUAL_ID, 0 }, 909 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 910 { EGL_SAMPLES, 0 }, 911 { EGL_SAMPLE_BUFFERS, 0 }, 912 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 913 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 914 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 915 { EGL_TRANSPARENT_RED_VALUE, 0 }, 916 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 917 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 918 { EGL_MIN_SWAP_INTERVAL, 1 }, 919 { EGL_MAX_SWAP_INTERVAL, 1 }, 920 { EGL_LUMINANCE_SIZE, 0 }, 921 { EGL_ALPHA_MASK_SIZE, 0 }, 922 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER }, 923 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 924 { EGL_CONFORMANT, 0 } 925}; 926 927// These configs can override the base attribute list 928// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 929 930// 565 configs 931static config_pair_t const config_0_attribute_list[] = { 932 { EGL_BUFFER_SIZE, 16 }, 933 { EGL_ALPHA_SIZE, 0 }, 934 { EGL_BLUE_SIZE, 5 }, 935 { EGL_GREEN_SIZE, 6 }, 936 { EGL_RED_SIZE, 5 }, 937 { EGL_DEPTH_SIZE, 0 }, 938 { EGL_CONFIG_ID, 0 }, 939 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 940 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 941}; 942 943static config_pair_t const config_1_attribute_list[] = { 944 { EGL_BUFFER_SIZE, 16 }, 945 { EGL_ALPHA_SIZE, 0 }, 946 { EGL_BLUE_SIZE, 5 }, 947 { EGL_GREEN_SIZE, 6 }, 948 { EGL_RED_SIZE, 5 }, 949 { EGL_DEPTH_SIZE, 16 }, 950 { EGL_CONFIG_ID, 1 }, 951 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 952 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 953}; 954 955// RGB 888 configs 956static config_pair_t const config_2_attribute_list[] = { 957 { EGL_BUFFER_SIZE, 32 }, 958 { EGL_ALPHA_SIZE, 0 }, 959 { EGL_BLUE_SIZE, 8 }, 960 { EGL_GREEN_SIZE, 8 }, 961 { EGL_RED_SIZE, 8 }, 962 { EGL_DEPTH_SIZE, 0 }, 963 { EGL_CONFIG_ID, 6 }, 964 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 965 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 966}; 967 968static config_pair_t const config_3_attribute_list[] = { 969 { EGL_BUFFER_SIZE, 32 }, 970 { EGL_ALPHA_SIZE, 0 }, 971 { EGL_BLUE_SIZE, 8 }, 972 { EGL_GREEN_SIZE, 8 }, 973 { EGL_RED_SIZE, 8 }, 974 { EGL_DEPTH_SIZE, 16 }, 975 { EGL_CONFIG_ID, 7 }, 976 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 977 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 978}; 979 980// 8888 configs 981static config_pair_t const config_4_attribute_list[] = { 982 { EGL_BUFFER_SIZE, 32 }, 983 { EGL_ALPHA_SIZE, 8 }, 984 { EGL_BLUE_SIZE, 8 }, 985 { EGL_GREEN_SIZE, 8 }, 986 { EGL_RED_SIZE, 8 }, 987 { EGL_DEPTH_SIZE, 0 }, 988 { EGL_CONFIG_ID, 2 }, 989 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 990 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 991}; 992 993static config_pair_t const config_5_attribute_list[] = { 994 { EGL_BUFFER_SIZE, 32 }, 995 { EGL_ALPHA_SIZE, 8 }, 996 { EGL_BLUE_SIZE, 8 }, 997 { EGL_GREEN_SIZE, 8 }, 998 { EGL_RED_SIZE, 8 }, 999 { EGL_DEPTH_SIZE, 16 }, 1000 { EGL_CONFIG_ID, 3 }, 1001 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 1002 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1003}; 1004 1005// A8 configs 1006static config_pair_t const config_6_attribute_list[] = { 1007 { EGL_BUFFER_SIZE, 8 }, 1008 { EGL_ALPHA_SIZE, 8 }, 1009 { EGL_BLUE_SIZE, 0 }, 1010 { EGL_GREEN_SIZE, 0 }, 1011 { EGL_RED_SIZE, 0 }, 1012 { EGL_DEPTH_SIZE, 0 }, 1013 { EGL_CONFIG_ID, 4 }, 1014 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 1015 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1016}; 1017 1018static config_pair_t const config_7_attribute_list[] = { 1019 { EGL_BUFFER_SIZE, 8 }, 1020 { EGL_ALPHA_SIZE, 8 }, 1021 { EGL_BLUE_SIZE, 0 }, 1022 { EGL_GREEN_SIZE, 0 }, 1023 { EGL_RED_SIZE, 0 }, 1024 { EGL_DEPTH_SIZE, 16 }, 1025 { EGL_CONFIG_ID, 5 }, 1026 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 1027 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1028}; 1029 1030static configs_t const gConfigs[] = { 1031 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 1032 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 1033 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 1034 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 1035 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 1036 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 1037 { config_6_attribute_list, NELEM(config_6_attribute_list) }, 1038 { config_7_attribute_list, NELEM(config_7_attribute_list) }, 1039}; 1040 1041static config_management_t const gConfigManagement[] = { 1042 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 1043 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1044 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1045 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1046 { EGL_RED_SIZE, config_management_t::atLeast }, 1047 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1048 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1049 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1050 { EGL_CONFIG_ID, config_management_t::exact }, 1051 { EGL_LEVEL, config_management_t::exact }, 1052 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::ignore }, 1053 { EGL_MAX_PBUFFER_PIXELS, config_management_t::ignore }, 1054 { EGL_MAX_PBUFFER_WIDTH, config_management_t::ignore }, 1055 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1056 { EGL_NATIVE_VISUAL_ID, config_management_t::ignore }, 1057 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1058 { EGL_SAMPLES, config_management_t::exact }, 1059 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1060 { EGL_SURFACE_TYPE, config_management_t::mask }, 1061 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1062 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1063 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1064 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1065 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1066 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1067 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1068 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1069 { EGL_LUMINANCE_SIZE, config_management_t::atLeast }, 1070 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast }, 1071 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact }, 1072 { EGL_RENDERABLE_TYPE, config_management_t::mask }, 1073 { EGL_CONFORMANT, config_management_t::mask } 1074}; 1075 1076 1077static config_pair_t const config_defaults[] = { 1078 // attributes that are not specified are simply ignored, if a particular 1079 // one needs not be ignored, it must be specified here, eg: 1080 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1081}; 1082 1083// ---------------------------------------------------------------------------- 1084 1085static status_t getConfigFormatInfo(EGLint configID, 1086 int32_t& pixelFormat, int32_t& depthFormat) 1087{ 1088 switch(configID) { 1089 case 0: 1090 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1091 depthFormat = 0; 1092 break; 1093 case 1: 1094 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1095 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1096 break; 1097 case 2: 1098 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1099 depthFormat = 0; 1100 break; 1101 case 3: 1102 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1103 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1104 break; 1105 case 4: 1106 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1107 depthFormat = 0; 1108 break; 1109 case 5: 1110 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1111 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1112 break; 1113 case 6: 1114 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1115 depthFormat = 0; 1116 break; 1117 case 7: 1118 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1119 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1120 break; 1121 default: 1122 return NAME_NOT_FOUND; 1123 } 1124 return NO_ERROR; 1125} 1126 1127// ---------------------------------------------------------------------------- 1128 1129template<typename T> 1130static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1131{ 1132 while (first <= last) { 1133 int mid = (first + last) / 2; 1134 if (key > sortedArray[mid].key) { 1135 first = mid + 1; 1136 } else if (key < sortedArray[mid].key) { 1137 last = mid - 1; 1138 } else { 1139 return mid; 1140 } 1141 } 1142 return -1; 1143} 1144 1145static int isAttributeMatching(int i, EGLint attr, EGLint val) 1146{ 1147 // look for the attribute in all of our configs 1148 config_pair_t const* configFound = gConfigs[i].array; 1149 int index = binarySearch<config_pair_t>( 1150 gConfigs[i].array, 1151 0, gConfigs[i].size-1, 1152 attr); 1153 if (index < 0) { 1154 configFound = config_base_attribute_list; 1155 index = binarySearch<config_pair_t>( 1156 config_base_attribute_list, 1157 0, NELEM(config_base_attribute_list)-1, 1158 attr); 1159 } 1160 if (index >= 0) { 1161 // attribute found, check if this config could match 1162 int cfgMgtIndex = binarySearch<config_management_t>( 1163 gConfigManagement, 1164 0, NELEM(gConfigManagement)-1, 1165 attr); 1166 if (cfgMgtIndex >= 0) { 1167 bool match = gConfigManagement[cfgMgtIndex].match( 1168 val, configFound[index].value); 1169 if (match) { 1170 // this config matches 1171 return 1; 1172 } 1173 } else { 1174 // attribute not found. this should NEVER happen. 1175 } 1176 } else { 1177 // error, this attribute doesn't exist 1178 } 1179 return 0; 1180} 1181 1182static int makeCurrent(ogles_context_t* gl) 1183{ 1184 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1185 if (gl) { 1186 egl_context_t* c = egl_context_t::context(gl); 1187 if (c->flags & egl_context_t::IS_CURRENT) { 1188 if (current != gl) { 1189 // it is an error to set a context current, if it's already 1190 // current to another thread 1191 return -1; 1192 } 1193 } else { 1194 if (current) { 1195 // mark the current context as not current, and flush 1196 glFlush(); 1197 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1198 } 1199 } 1200 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1201 // The context is not current, make it current! 1202 setGlThreadSpecific(gl); 1203 c->flags |= egl_context_t::IS_CURRENT; 1204 } 1205 } else { 1206 if (current) { 1207 // mark the current context as not current, and flush 1208 glFlush(); 1209 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1210 } 1211 // this thread has no context attached to it 1212 setGlThreadSpecific(0); 1213 } 1214 return 0; 1215} 1216 1217static EGLBoolean getConfigAttrib(EGLDisplay /*dpy*/, EGLConfig config, 1218 EGLint attribute, EGLint *value) 1219{ 1220 size_t numConfigs = NELEM(gConfigs); 1221 int index = (int)(uintptr_t)config; 1222 if (uint32_t(index) >= numConfigs) 1223 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1224 1225 int attrIndex; 1226 attrIndex = binarySearch<config_pair_t>( 1227 gConfigs[index].array, 1228 0, gConfigs[index].size-1, 1229 attribute); 1230 if (attrIndex>=0) { 1231 *value = gConfigs[index].array[attrIndex].value; 1232 return EGL_TRUE; 1233 } 1234 1235 attrIndex = binarySearch<config_pair_t>( 1236 config_base_attribute_list, 1237 0, NELEM(config_base_attribute_list)-1, 1238 attribute); 1239 if (attrIndex>=0) { 1240 *value = config_base_attribute_list[attrIndex].value; 1241 return EGL_TRUE; 1242 } 1243 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1244} 1245 1246static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1247 NativeWindowType window, const EGLint* /*attrib_list*/) 1248{ 1249 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1250 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1251 if (window == 0) 1252 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1253 1254 EGLint surfaceType; 1255 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1256 return EGL_FALSE; 1257 1258 if (!(surfaceType & EGL_WINDOW_BIT)) 1259 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1260 1261 if (static_cast<ANativeWindow*>(window)->common.magic != 1262 ANDROID_NATIVE_WINDOW_MAGIC) { 1263 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1264 } 1265 1266 EGLint configID; 1267 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1268 return EGL_FALSE; 1269 1270 int32_t depthFormat; 1271 int32_t pixelFormat; 1272 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1273 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1274 } 1275 1276 // FIXME: we don't have access to the pixelFormat here just yet. 1277 // (it's possible that the surface is not fully initialized) 1278 // maybe this should be done after the page-flip 1279 //if (EGLint(info.format) != pixelFormat) 1280 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1281 1282 egl_surface_t* surface; 1283 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1284 static_cast<ANativeWindow*>(window)); 1285 1286 if (!surface->initCheck()) { 1287 // there was a problem in the ctor, the error 1288 // flag has been set. 1289 delete surface; 1290 surface = 0; 1291 } 1292 return surface; 1293} 1294 1295static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1296 NativePixmapType pixmap, const EGLint* /*attrib_list*/) 1297{ 1298 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1299 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1300 if (pixmap == 0) 1301 return setError(EGL_BAD_MATCH, 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_PIXMAP_BIT)) 1308 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1309 1310 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1311 sizeof(egl_native_pixmap_t)) { 1312 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1313 } 1314 1315 EGLint configID; 1316 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1317 return EGL_FALSE; 1318 1319 int32_t depthFormat; 1320 int32_t pixelFormat; 1321 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1322 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1323 } 1324 1325 if (pixmap->format != pixelFormat) 1326 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1327 1328 egl_surface_t* surface = 1329 new egl_pixmap_surface_t(dpy, config, depthFormat, 1330 static_cast<egl_native_pixmap_t*>(pixmap)); 1331 1332 if (!surface->initCheck()) { 1333 // there was a problem in the ctor, the error 1334 // flag has been set. 1335 delete surface; 1336 surface = 0; 1337 } 1338 return surface; 1339} 1340 1341static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1342 const EGLint *attrib_list) 1343{ 1344 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1345 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1346 1347 EGLint surfaceType; 1348 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1349 return EGL_FALSE; 1350 1351 if (!(surfaceType & EGL_PBUFFER_BIT)) 1352 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1353 1354 EGLint configID; 1355 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1356 return EGL_FALSE; 1357 1358 int32_t depthFormat; 1359 int32_t pixelFormat; 1360 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1361 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1362 } 1363 1364 int32_t w = 0; 1365 int32_t h = 0; 1366 while (attrib_list[0] != EGL_NONE) { 1367 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1368 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1369 attrib_list+=2; 1370 } 1371 1372 egl_surface_t* surface = 1373 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1374 1375 if (!surface->initCheck()) { 1376 // there was a problem in the ctor, the error 1377 // flag has been set. 1378 delete surface; 1379 surface = 0; 1380 } 1381 return surface; 1382} 1383 1384// ---------------------------------------------------------------------------- 1385}; // namespace android 1386// ---------------------------------------------------------------------------- 1387 1388using namespace android; 1389 1390// ---------------------------------------------------------------------------- 1391// Initialization 1392// ---------------------------------------------------------------------------- 1393 1394EGLDisplay eglGetDisplay(NativeDisplayType display) 1395{ 1396#ifndef __ANDROID__ 1397 // this just needs to be done once 1398 if (gGLKey == -1) { 1399 pthread_mutex_lock(&gInitMutex); 1400 if (gGLKey == -1) 1401 pthread_key_create(&gGLKey, NULL); 1402 pthread_mutex_unlock(&gInitMutex); 1403 } 1404#endif 1405 if (display == EGL_DEFAULT_DISPLAY) { 1406 EGLDisplay dpy = (EGLDisplay)1; 1407 egl_display_t& d = egl_display_t::get_display(dpy); 1408 d.type = display; 1409 return dpy; 1410 } 1411 return EGL_NO_DISPLAY; 1412} 1413 1414EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1415{ 1416 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1417 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1418 1419 EGLBoolean res = EGL_TRUE; 1420 egl_display_t& d = egl_display_t::get_display(dpy); 1421 1422 if (d.initialized.fetch_add(1, std::memory_order_acquire) == 0) { 1423 // initialize stuff here if needed 1424 //pthread_mutex_lock(&gInitMutex); 1425 //pthread_mutex_unlock(&gInitMutex); 1426 } 1427 1428 if (res == EGL_TRUE) { 1429 if (major != NULL) *major = VERSION_MAJOR; 1430 if (minor != NULL) *minor = VERSION_MINOR; 1431 } 1432 return res; 1433} 1434 1435EGLBoolean eglTerminate(EGLDisplay dpy) 1436{ 1437 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1438 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1439 1440 EGLBoolean res = EGL_TRUE; 1441 egl_display_t& d = egl_display_t::get_display(dpy); 1442 if (d.initialized.fetch_sub(1, std::memory_order_release) == 1) { 1443 std::atomic_thread_fence(std::memory_order_acquire); 1444 // TODO: destroy all resources (surfaces, contexts, etc...) 1445 //pthread_mutex_lock(&gInitMutex); 1446 //pthread_mutex_unlock(&gInitMutex); 1447 } 1448 return res; 1449} 1450 1451// ---------------------------------------------------------------------------- 1452// configuration 1453// ---------------------------------------------------------------------------- 1454 1455EGLBoolean eglGetConfigs( EGLDisplay dpy, 1456 EGLConfig *configs, 1457 EGLint config_size, EGLint *num_config) 1458{ 1459 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1460 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1461 1462 if (ggl_unlikely(num_config==NULL)) 1463 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1464 1465 GLint numConfigs = NELEM(gConfigs); 1466 if (!configs) { 1467 *num_config = numConfigs; 1468 return EGL_TRUE; 1469 } 1470 GLint i; 1471 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1472 *configs++ = (EGLConfig)(uintptr_t)i; 1473 } 1474 *num_config = i; 1475 return EGL_TRUE; 1476} 1477 1478EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1479 EGLConfig *configs, EGLint config_size, 1480 EGLint *num_config) 1481{ 1482 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1483 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1484 1485 if (ggl_unlikely(num_config==NULL)) { 1486 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1487 } 1488 1489 if (ggl_unlikely(attrib_list==0)) { 1490 /* 1491 * A NULL attrib_list should be treated as though it was an empty 1492 * one (terminated with EGL_NONE) as defined in 1493 * section 3.4.1 "Querying Configurations" in the EGL specification. 1494 */ 1495 static const EGLint dummy = EGL_NONE; 1496 attrib_list = &dummy; 1497 } 1498 1499 int numAttributes = 0; 1500 int numConfigs = NELEM(gConfigs); 1501 uint32_t possibleMatch = (1<<numConfigs)-1; 1502 while(possibleMatch && *attrib_list != EGL_NONE) { 1503 numAttributes++; 1504 EGLint attr = *attrib_list++; 1505 EGLint val = *attrib_list++; 1506 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1507 if (!(possibleMatch & (1<<i))) 1508 continue; 1509 if (isAttributeMatching(i, attr, val) == 0) { 1510 possibleMatch &= ~(1<<i); 1511 } 1512 } 1513 } 1514 1515 // now, handle the attributes which have a useful default value 1516 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) { 1517 // see if this attribute was specified, if not, apply its 1518 // default value 1519 if (binarySearch<config_pair_t>( 1520 (config_pair_t const*)attrib_list, 1521 0, numAttributes-1, 1522 config_defaults[j].key) < 0) 1523 { 1524 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1525 if (!(possibleMatch & (1<<i))) 1526 continue; 1527 if (isAttributeMatching(i, 1528 config_defaults[j].key, 1529 config_defaults[j].value) == 0) 1530 { 1531 possibleMatch &= ~(1<<i); 1532 } 1533 } 1534 } 1535 } 1536 1537 // return the configurations found 1538 int n=0; 1539 if (possibleMatch) { 1540 if (configs) { 1541 for (int i=0 ; config_size && i<numConfigs ; i++) { 1542 if (possibleMatch & (1<<i)) { 1543 *configs++ = (EGLConfig)(uintptr_t)i; 1544 config_size--; 1545 n++; 1546 } 1547 } 1548 } else { 1549 for (int i=0 ; i<numConfigs ; i++) { 1550 if (possibleMatch & (1<<i)) { 1551 n++; 1552 } 1553 } 1554 } 1555 } 1556 *num_config = n; 1557 return EGL_TRUE; 1558} 1559 1560EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1561 EGLint attribute, EGLint *value) 1562{ 1563 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1564 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1565 1566 return getConfigAttrib(dpy, config, attribute, value); 1567} 1568 1569// ---------------------------------------------------------------------------- 1570// surfaces 1571// ---------------------------------------------------------------------------- 1572 1573EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1574 NativeWindowType window, 1575 const EGLint *attrib_list) 1576{ 1577 return createWindowSurface(dpy, config, window, attrib_list); 1578} 1579 1580EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1581 NativePixmapType pixmap, 1582 const EGLint *attrib_list) 1583{ 1584 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1585} 1586 1587EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1588 const EGLint *attrib_list) 1589{ 1590 return createPbufferSurface(dpy, config, attrib_list); 1591} 1592 1593EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1594{ 1595 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1596 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1597 if (eglSurface != EGL_NO_SURFACE) { 1598 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1599 if (!surface->isValid()) 1600 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1601 if (surface->dpy != dpy) 1602 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1603 if (surface->ctx) { 1604 // defer disconnect/delete until no longer current 1605 surface->zombie = true; 1606 } else { 1607 surface->disconnect(); 1608 delete surface; 1609 } 1610 } 1611 return EGL_TRUE; 1612} 1613 1614EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1615 EGLint attribute, EGLint *value) 1616{ 1617 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1618 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1619 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1620 if (!surface->isValid()) 1621 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1622 if (surface->dpy != dpy) 1623 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1624 1625 EGLBoolean ret = EGL_TRUE; 1626 switch (attribute) { 1627 case EGL_CONFIG_ID: 1628 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1629 break; 1630 case EGL_WIDTH: 1631 *value = surface->getWidth(); 1632 break; 1633 case EGL_HEIGHT: 1634 *value = surface->getHeight(); 1635 break; 1636 case EGL_LARGEST_PBUFFER: 1637 // not modified for a window or pixmap surface 1638 break; 1639 case EGL_TEXTURE_FORMAT: 1640 *value = EGL_NO_TEXTURE; 1641 break; 1642 case EGL_TEXTURE_TARGET: 1643 *value = EGL_NO_TEXTURE; 1644 break; 1645 case EGL_MIPMAP_TEXTURE: 1646 *value = EGL_FALSE; 1647 break; 1648 case EGL_MIPMAP_LEVEL: 1649 *value = 0; 1650 break; 1651 case EGL_RENDER_BUFFER: 1652 // TODO: return the real RENDER_BUFFER here 1653 *value = EGL_BACK_BUFFER; 1654 break; 1655 case EGL_HORIZONTAL_RESOLUTION: 1656 // pixel/mm * EGL_DISPLAY_SCALING 1657 *value = surface->getHorizontalResolution(); 1658 break; 1659 case EGL_VERTICAL_RESOLUTION: 1660 // pixel/mm * EGL_DISPLAY_SCALING 1661 *value = surface->getVerticalResolution(); 1662 break; 1663 case EGL_PIXEL_ASPECT_RATIO: { 1664 // w/h * EGL_DISPLAY_SCALING 1665 int wr = surface->getHorizontalResolution(); 1666 int hr = surface->getVerticalResolution(); 1667 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1668 } break; 1669 case EGL_SWAP_BEHAVIOR: 1670 *value = surface->getSwapBehavior(); 1671 break; 1672 default: 1673 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1674 } 1675 return ret; 1676} 1677 1678EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1679 EGLContext /*share_list*/, const EGLint* /*attrib_list*/) 1680{ 1681 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1682 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1683 1684 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1685 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1686 1687 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1688 c->flags = egl_context_t::NEVER_CURRENT; 1689 c->dpy = dpy; 1690 c->config = config; 1691 c->read = 0; 1692 c->draw = 0; 1693 return (EGLContext)gl; 1694} 1695 1696EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1697{ 1698 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1699 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1700 egl_context_t* c = egl_context_t::context(ctx); 1701 if (c->flags & egl_context_t::IS_CURRENT) 1702 setGlThreadSpecific(0); 1703 ogles_uninit((ogles_context_t*)ctx); 1704 return EGL_TRUE; 1705} 1706 1707EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1708 EGLSurface read, EGLContext ctx) 1709{ 1710 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1711 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1712 if (draw) { 1713 egl_surface_t* s = (egl_surface_t*)draw; 1714 if (!s->isValid()) 1715 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1716 if (s->dpy != dpy) 1717 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1718 // TODO: check that draw is compatible with the context 1719 } 1720 if (read && read!=draw) { 1721 egl_surface_t* s = (egl_surface_t*)read; 1722 if (!s->isValid()) 1723 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1724 if (s->dpy != dpy) 1725 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1726 // TODO: check that read is compatible with the context 1727 } 1728 1729 EGLContext current_ctx = EGL_NO_CONTEXT; 1730 1731 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1732 return setError(EGL_BAD_MATCH, EGL_FALSE); 1733 1734 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1735 return setError(EGL_BAD_MATCH, EGL_FALSE); 1736 1737 if (ctx == EGL_NO_CONTEXT) { 1738 // if we're detaching, we need the current context 1739 current_ctx = (EGLContext)getGlThreadSpecific(); 1740 } else { 1741 egl_context_t* c = egl_context_t::context(ctx); 1742 egl_surface_t* d = (egl_surface_t*)draw; 1743 egl_surface_t* r = (egl_surface_t*)read; 1744 if ((d && d->ctx && d->ctx != ctx) || 1745 (r && r->ctx && r->ctx != ctx)) { 1746 // one of the surface is bound to a context in another thread 1747 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1748 } 1749 } 1750 1751 ogles_context_t* gl = (ogles_context_t*)ctx; 1752 if (makeCurrent(gl) == 0) { 1753 if (ctx) { 1754 egl_context_t* c = egl_context_t::context(ctx); 1755 egl_surface_t* d = (egl_surface_t*)draw; 1756 egl_surface_t* r = (egl_surface_t*)read; 1757 1758 if (c->draw) { 1759 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1760 s->disconnect(); 1761 s->ctx = EGL_NO_CONTEXT; 1762 if (s->zombie) 1763 delete s; 1764 } 1765 if (c->read) { 1766 // FIXME: unlock/disconnect the read surface too 1767 } 1768 1769 c->draw = draw; 1770 c->read = read; 1771 1772 if (c->flags & egl_context_t::NEVER_CURRENT) { 1773 c->flags &= ~egl_context_t::NEVER_CURRENT; 1774 GLint w = 0; 1775 GLint h = 0; 1776 if (draw) { 1777 w = d->getWidth(); 1778 h = d->getHeight(); 1779 } 1780 ogles_surfaceport(gl, 0, 0); 1781 ogles_viewport(gl, 0, 0, w, h); 1782 ogles_scissor(gl, 0, 0, w, h); 1783 } 1784 if (d) { 1785 if (d->connect() == EGL_FALSE) { 1786 return EGL_FALSE; 1787 } 1788 d->ctx = ctx; 1789 d->bindDrawSurface(gl); 1790 } 1791 if (r) { 1792 // FIXME: lock/connect the read surface too 1793 r->ctx = ctx; 1794 r->bindReadSurface(gl); 1795 } 1796 } else { 1797 // if surfaces were bound to the context bound to this thread 1798 // mark then as unbound. 1799 if (current_ctx) { 1800 egl_context_t* c = egl_context_t::context(current_ctx); 1801 egl_surface_t* d = (egl_surface_t*)c->draw; 1802 egl_surface_t* r = (egl_surface_t*)c->read; 1803 if (d) { 1804 c->draw = 0; 1805 d->disconnect(); 1806 d->ctx = EGL_NO_CONTEXT; 1807 if (d->zombie) 1808 delete d; 1809 } 1810 if (r) { 1811 c->read = 0; 1812 r->ctx = EGL_NO_CONTEXT; 1813 // FIXME: unlock/disconnect the read surface too 1814 } 1815 } 1816 } 1817 return EGL_TRUE; 1818 } 1819 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1820} 1821 1822EGLContext eglGetCurrentContext(void) 1823{ 1824 // eglGetCurrentContext returns the current EGL rendering context, 1825 // as specified by eglMakeCurrent. If no context is current, 1826 // EGL_NO_CONTEXT is returned. 1827 return (EGLContext)getGlThreadSpecific(); 1828} 1829 1830EGLSurface eglGetCurrentSurface(EGLint readdraw) 1831{ 1832 // eglGetCurrentSurface returns the read or draw surface attached 1833 // to the current EGL rendering context, as specified by eglMakeCurrent. 1834 // If no context is current, EGL_NO_SURFACE is returned. 1835 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1836 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1837 egl_context_t* c = egl_context_t::context(ctx); 1838 if (readdraw == EGL_READ) { 1839 return c->read; 1840 } else if (readdraw == EGL_DRAW) { 1841 return c->draw; 1842 } 1843 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1844} 1845 1846EGLDisplay eglGetCurrentDisplay(void) 1847{ 1848 // eglGetCurrentDisplay returns the current EGL display connection 1849 // for the current EGL rendering context, as specified by eglMakeCurrent. 1850 // If no context is current, EGL_NO_DISPLAY is returned. 1851 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1852 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1853 egl_context_t* c = egl_context_t::context(ctx); 1854 return c->dpy; 1855} 1856 1857EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1858 EGLint attribute, EGLint *value) 1859{ 1860 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1861 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1862 egl_context_t* c = egl_context_t::context(ctx); 1863 switch (attribute) { 1864 case EGL_CONFIG_ID: 1865 // Returns the ID of the EGL frame buffer configuration with 1866 // respect to which the context was created 1867 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1868 } 1869 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1870} 1871 1872EGLBoolean eglWaitGL(void) 1873{ 1874 return EGL_TRUE; 1875} 1876 1877EGLBoolean eglWaitNative(EGLint /*engine*/) 1878{ 1879 return EGL_TRUE; 1880} 1881 1882EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1883{ 1884 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1885 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1886 1887 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1888 if (!d->isValid()) 1889 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1890 if (d->dpy != dpy) 1891 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1892 1893 // post the surface 1894 d->swapBuffers(); 1895 1896 // if it's bound to a context, update the buffer 1897 if (d->ctx != EGL_NO_CONTEXT) { 1898 d->bindDrawSurface((ogles_context_t*)d->ctx); 1899 // if this surface is also the read surface of the context 1900 // it is bound to, make sure to update the read buffer as well. 1901 // The EGL spec is a little unclear about this. 1902 egl_context_t* c = egl_context_t::context(d->ctx); 1903 if (c->read == draw) { 1904 d->bindReadSurface((ogles_context_t*)d->ctx); 1905 } 1906 } 1907 1908 return EGL_TRUE; 1909} 1910 1911EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface /*surface*/, 1912 NativePixmapType /*target*/) 1913{ 1914 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1915 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1916 // TODO: eglCopyBuffers() 1917 return EGL_FALSE; 1918} 1919 1920EGLint eglGetError(void) 1921{ 1922 return getError(); 1923} 1924 1925const char* eglQueryString(EGLDisplay dpy, EGLint name) 1926{ 1927 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1928 return setError(EGL_BAD_DISPLAY, (const char*)0); 1929 1930 switch (name) { 1931 case EGL_VENDOR: 1932 return gVendorString; 1933 case EGL_VERSION: 1934 return gVersionString; 1935 case EGL_EXTENSIONS: 1936 return gExtensionsString; 1937 case EGL_CLIENT_APIS: 1938 return gClientApiString; 1939 } 1940 return setError(EGL_BAD_PARAMETER, (const char *)0); 1941} 1942 1943// ---------------------------------------------------------------------------- 1944// EGL 1.1 1945// ---------------------------------------------------------------------------- 1946 1947EGLBoolean eglSurfaceAttrib( 1948 EGLDisplay dpy, EGLSurface /*surface*/, EGLint /*attribute*/, EGLint /*value*/) 1949{ 1950 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1951 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1952 // TODO: eglSurfaceAttrib() 1953 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1954} 1955 1956EGLBoolean eglBindTexImage( 1957 EGLDisplay dpy, EGLSurface /*surface*/, EGLint /*buffer*/) 1958{ 1959 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1960 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1961 // TODO: eglBindTexImage() 1962 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1963} 1964 1965EGLBoolean eglReleaseTexImage( 1966 EGLDisplay dpy, EGLSurface /*surface*/, EGLint /*buffer*/) 1967{ 1968 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1969 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1970 // TODO: eglReleaseTexImage() 1971 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1972} 1973 1974EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint /*interval*/) 1975{ 1976 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1977 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1978 // TODO: eglSwapInterval() 1979 return EGL_TRUE; 1980} 1981 1982// ---------------------------------------------------------------------------- 1983// EGL 1.2 1984// ---------------------------------------------------------------------------- 1985 1986EGLBoolean eglBindAPI(EGLenum api) 1987{ 1988 if (api != EGL_OPENGL_ES_API) 1989 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1990 return EGL_TRUE; 1991} 1992 1993EGLenum eglQueryAPI(void) 1994{ 1995 return EGL_OPENGL_ES_API; 1996} 1997 1998EGLBoolean eglWaitClient(void) 1999{ 2000 glFinish(); 2001 return EGL_TRUE; 2002} 2003 2004EGLBoolean eglReleaseThread(void) 2005{ 2006 // TODO: eglReleaseThread() 2007 return EGL_TRUE; 2008} 2009 2010EGLSurface eglCreatePbufferFromClientBuffer( 2011 EGLDisplay dpy, EGLenum /*buftype*/, EGLClientBuffer /*buffer*/, 2012 EGLConfig /*config*/, const EGLint* /*attrib_list*/) 2013{ 2014 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2015 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 2016 // TODO: eglCreatePbufferFromClientBuffer() 2017 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 2018} 2019 2020// ---------------------------------------------------------------------------- 2021// EGL_EGLEXT_VERSION 3 2022// ---------------------------------------------------------------------------- 2023 2024void (*eglGetProcAddress (const char *procname))() 2025{ 2026 extention_map_t const * const map = gExtentionMap; 2027 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 2028 if (!strcmp(procname, map[i].name)) { 2029 return map[i].address; 2030 } 2031 } 2032 return NULL; 2033} 2034 2035EGLBoolean eglLockSurfaceKHR(EGLDisplay /*dpy*/, EGLSurface /*surface*/, 2036 const EGLint* /*attrib_list*/) 2037{ 2038 EGLBoolean result = EGL_FALSE; 2039 return result; 2040} 2041 2042EGLBoolean eglUnlockSurfaceKHR(EGLDisplay /*dpy*/, EGLSurface /*surface*/) 2043{ 2044 EGLBoolean result = EGL_FALSE; 2045 return result; 2046} 2047 2048EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 2049 EGLClientBuffer buffer, const EGLint* /*attrib_list*/) 2050{ 2051 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2052 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 2053 } 2054 if (ctx != EGL_NO_CONTEXT) { 2055 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2056 } 2057 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2058 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2059 } 2060 2061 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)buffer; 2062 2063 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2064 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2065 2066 if (native_buffer->common.version != sizeof(ANativeWindowBuffer)) 2067 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2068 2069 switch (native_buffer->format) { 2070 case HAL_PIXEL_FORMAT_RGBA_8888: 2071 case HAL_PIXEL_FORMAT_RGBX_8888: 2072 case HAL_PIXEL_FORMAT_RGB_888: 2073 case HAL_PIXEL_FORMAT_RGB_565: 2074 case HAL_PIXEL_FORMAT_BGRA_8888: 2075 break; 2076 default: 2077 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2078 } 2079 2080 native_buffer->common.incRef(&native_buffer->common); 2081 return (EGLImageKHR)native_buffer; 2082} 2083 2084EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2085{ 2086 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2087 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2088 } 2089 2090 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)img; 2091 2092 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2093 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2094 2095 if (native_buffer->common.version != sizeof(ANativeWindowBuffer)) 2096 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2097 2098 native_buffer->common.decRef(&native_buffer->common); 2099 2100 return EGL_TRUE; 2101} 2102 2103// ---------------------------------------------------------------------------- 2104// EGL_KHR_fence_sync 2105// ---------------------------------------------------------------------------- 2106 2107#define FENCE_SYNC_HANDLE ((EGLSyncKHR)0xFE4CE) 2108 2109EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, 2110 const EGLint *attrib_list) 2111{ 2112 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2113 return setError(EGL_BAD_DISPLAY, EGL_NO_SYNC_KHR); 2114 } 2115 2116 if (type != EGL_SYNC_FENCE_KHR || 2117 (attrib_list != NULL && attrib_list[0] != EGL_NONE)) { 2118 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SYNC_KHR); 2119 } 2120 2121 if (eglGetCurrentContext() == EGL_NO_CONTEXT) { 2122 return setError(EGL_BAD_MATCH, EGL_NO_SYNC_KHR); 2123 } 2124 2125 // AGL is synchronous; nothing to do here. 2126 2127 return FENCE_SYNC_HANDLE; 2128} 2129 2130EGLBoolean eglDestroySyncKHR(EGLDisplay /*dpy*/, EGLSyncKHR sync) 2131{ 2132 if (sync != FENCE_SYNC_HANDLE) { 2133 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2134 } 2135 2136 return EGL_TRUE; 2137} 2138 2139EGLint eglClientWaitSyncKHR(EGLDisplay /*dpy*/, EGLSyncKHR sync, EGLint /*flags*/, 2140 EGLTimeKHR /*timeout*/) 2141{ 2142 if (sync != FENCE_SYNC_HANDLE) { 2143 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2144 } 2145 2146 return EGL_CONDITION_SATISFIED_KHR; 2147} 2148 2149EGLBoolean eglGetSyncAttribKHR(EGLDisplay /*dpy*/, EGLSyncKHR sync, 2150 EGLint attribute, EGLint *value) 2151{ 2152 if (sync != FENCE_SYNC_HANDLE) { 2153 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2154 } 2155 2156 switch (attribute) { 2157 case EGL_SYNC_TYPE_KHR: 2158 *value = EGL_SYNC_FENCE_KHR; 2159 return EGL_TRUE; 2160 case EGL_SYNC_STATUS_KHR: 2161 *value = EGL_SIGNALED_KHR; 2162 return EGL_TRUE; 2163 case EGL_SYNC_CONDITION_KHR: 2164 *value = EGL_SYNC_PRIOR_COMMANDS_COMPLETE_KHR; 2165 return EGL_TRUE; 2166 default: 2167 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 2168 } 2169} 2170 2171// ---------------------------------------------------------------------------- 2172// ANDROID extensions 2173// ---------------------------------------------------------------------------- 2174 2175EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2176 EGLint left, EGLint top, EGLint width, EGLint height) 2177{ 2178 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2179 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2180 2181 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2182 if (!d->isValid()) 2183 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2184 if (d->dpy != dpy) 2185 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2186 2187 // post the surface 2188 d->setSwapRectangle(left, top, width, height); 2189 2190 return EGL_TRUE; 2191} 2192