egl.cpp revision 41e5645b1a9f416f926c7f2aa024ed0bef206076
1/* 2** 3** Copyright 2007 The Android Open Source Project 4** 5** Licensed under the Apache License Version 2.0(the "License"); 6** you may not use this file except in compliance with the License. 7** You may obtain a copy of the License at 8** 9** http://www.apache.org/licenses/LICENSE-2.0 10** 11** Unless required by applicable law or agreed to in writing software 12** distributed under the License is distributed on an "AS IS" BASIS 13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND either express or implied. 14** See the License for the specific language governing permissions and 15** limitations under the License. 16*/ 17 18#include <assert.h> 19#include <errno.h> 20#include <stdlib.h> 21#include <stdio.h> 22#include <string.h> 23#include <unistd.h> 24#include <fcntl.h> 25#include <sys/ioctl.h> 26#include <sys/types.h> 27#include <sys/mman.h> 28 29#include <cutils/log.h> 30#include <cutils/atomic.h> 31 32#include <utils/threads.h> 33 34#include <EGL/egl.h> 35#include <EGL/eglext.h> 36#include <GLES/gl.h> 37#include <GLES/glext.h> 38 39#include <pixelflinger/format.h> 40#include <pixelflinger/pixelflinger.h> 41 42#include <private/ui/android_natives_priv.h> 43#include <private/ui/sw_gralloc_handle.h> 44 45#include <hardware/copybit.h> 46 47#include "context.h" 48#include "state.h" 49#include "texture.h" 50#include "matrix.h" 51 52#undef NELEM 53#define NELEM(x) (sizeof(x)/sizeof(*(x))) 54 55// ---------------------------------------------------------------------------- 56namespace android { 57// ---------------------------------------------------------------------------- 58 59const unsigned int NUM_DISPLAYS = 1; 60 61static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER; 62static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER; 63static pthread_key_t gEGLErrorKey = -1; 64#ifndef HAVE_ANDROID_OS 65namespace gl { 66pthread_key_t gGLKey = -1; 67}; // namespace gl 68#endif 69 70template<typename T> 71static T setError(GLint error, T returnValue) { 72 if (ggl_unlikely(gEGLErrorKey == -1)) { 73 pthread_mutex_lock(&gErrorKeyMutex); 74 if (gEGLErrorKey == -1) 75 pthread_key_create(&gEGLErrorKey, NULL); 76 pthread_mutex_unlock(&gErrorKeyMutex); 77 } 78 pthread_setspecific(gEGLErrorKey, (void*)error); 79 return returnValue; 80} 81 82static GLint getError() { 83 if (ggl_unlikely(gEGLErrorKey == -1)) 84 return EGL_SUCCESS; 85 GLint error = (GLint)pthread_getspecific(gEGLErrorKey); 86 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS); 87 return error; 88} 89 90// ---------------------------------------------------------------------------- 91 92struct egl_display_t 93{ 94 egl_display_t() : type(0), initialized(0) { } 95 96 static egl_display_t& get_display(EGLDisplay dpy); 97 98 static EGLBoolean is_valid(EGLDisplay dpy) { 99 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE; 100 } 101 102 NativeDisplayType type; 103 volatile int32_t initialized; 104}; 105 106static egl_display_t gDisplays[NUM_DISPLAYS]; 107 108egl_display_t& egl_display_t::get_display(EGLDisplay dpy) { 109 return gDisplays[uintptr_t(dpy)-1U]; 110} 111 112struct egl_context_t { 113 enum { 114 IS_CURRENT = 0x00010000, 115 NEVER_CURRENT = 0x00020000 116 }; 117 uint32_t flags; 118 EGLDisplay dpy; 119 EGLConfig config; 120 EGLSurface read; 121 EGLSurface draw; 122 123 static inline egl_context_t* context(EGLContext ctx) { 124 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx); 125 return static_cast<egl_context_t*>(gl->rasterizer.base); 126 } 127}; 128 129// ---------------------------------------------------------------------------- 130 131struct egl_surface_t 132{ 133 enum { 134 PAGE_FLIP = 0x00000001, 135 MAGIC = 0x31415265 136 }; 137 138 uint32_t magic; 139 EGLDisplay dpy; 140 EGLConfig config; 141 EGLContext ctx; 142 143 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat); 144 virtual ~egl_surface_t(); 145 bool isValid() const; 146 virtual bool initCheck() const = 0; 147 148 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 149 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 150 virtual EGLBoolean connect() { return EGL_TRUE; } 151 virtual void disconnect() {} 152 virtual EGLint getWidth() const = 0; 153 virtual EGLint getHeight() const = 0; 154 155 virtual EGLint getHorizontalResolution() const; 156 virtual EGLint getVerticalResolution() const; 157 virtual EGLint getRefreshRate() const; 158 virtual EGLint getSwapBehavior() const; 159 virtual EGLBoolean swapBuffers(); 160 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 161protected: 162 GGLSurface depth; 163}; 164 165egl_surface_t::egl_surface_t(EGLDisplay dpy, 166 EGLConfig config, 167 int32_t depthFormat) 168 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 169{ 170 depth.version = sizeof(GGLSurface); 171 depth.data = 0; 172 depth.format = depthFormat; 173} 174egl_surface_t::~egl_surface_t() 175{ 176 magic = 0; 177 free(depth.data); 178} 179bool egl_surface_t::isValid() const { 180 LOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this); 181 return magic == MAGIC; 182} 183 184EGLBoolean egl_surface_t::swapBuffers() { 185 return EGL_FALSE; 186} 187EGLint egl_surface_t::getHorizontalResolution() const { 188 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 189} 190EGLint egl_surface_t::getVerticalResolution() const { 191 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 192} 193EGLint egl_surface_t::getRefreshRate() const { 194 return (60 * EGL_DISPLAY_SCALING); 195} 196EGLint egl_surface_t::getSwapBehavior() const { 197 return EGL_BUFFER_PRESERVED; 198} 199EGLBoolean egl_surface_t::setSwapRectangle( 200 EGLint l, EGLint t, EGLint w, EGLint h) 201{ 202 return EGL_FALSE; 203} 204 205// ---------------------------------------------------------------------------- 206 207struct egl_window_surface_v2_t : public egl_surface_t 208{ 209 egl_window_surface_v2_t( 210 EGLDisplay dpy, EGLConfig config, 211 int32_t depthFormat, 212 ANativeWindow* window); 213 214 ~egl_window_surface_v2_t(); 215 216 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails 217 virtual EGLBoolean swapBuffers(); 218 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 219 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 220 virtual EGLBoolean connect(); 221 virtual void disconnect(); 222 virtual EGLint getWidth() const { return width; } 223 virtual EGLint getHeight() const { return height; } 224 virtual EGLint getHorizontalResolution() const; 225 virtual EGLint getVerticalResolution() const; 226 virtual EGLint getRefreshRate() const; 227 virtual EGLint getSwapBehavior() const; 228 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 229 230private: 231 status_t lock(android_native_buffer_t* buf, int usage, void** vaddr); 232 status_t unlock(android_native_buffer_t* buf); 233 ANativeWindow* nativeWindow; 234 android_native_buffer_t* buffer; 235 android_native_buffer_t* previousBuffer; 236 gralloc_module_t const* module; 237 copybit_device_t* blitengine; 238 int width; 239 int height; 240 void* bits; 241 GGLFormat const* pixelFormatTable; 242 243 struct Rect { 244 inline Rect() { }; 245 inline Rect(int32_t w, int32_t h) 246 : left(0), top(0), right(w), bottom(h) { } 247 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 248 : left(l), top(t), right(r), bottom(b) { } 249 Rect& andSelf(const Rect& r) { 250 left = max(left, r.left); 251 top = max(top, r.top); 252 right = min(right, r.right); 253 bottom = min(bottom, r.bottom); 254 return *this; 255 } 256 bool isEmpty() const { 257 return (left>=right || top>=bottom); 258 } 259 void dump(char const* what) { 260 LOGD("%s { %5d, %5d, w=%5d, h=%5d }", 261 what, left, top, right-left, bottom-top); 262 } 263 264 int32_t left; 265 int32_t top; 266 int32_t right; 267 int32_t bottom; 268 }; 269 270 struct Region { 271 inline Region() : count(0) { } 272 typedef Rect const* const_iterator; 273 const_iterator begin() const { return storage; } 274 const_iterator end() const { return storage+count; } 275 static Region subtract(const Rect& lhs, const Rect& rhs) { 276 Region reg; 277 Rect* storage = reg.storage; 278 if (!lhs.isEmpty()) { 279 if (lhs.top < rhs.top) { // top rect 280 storage->left = lhs.left; 281 storage->top = lhs.top; 282 storage->right = lhs.right; 283 storage->bottom = rhs.top; 284 storage++; 285 } 286 const int32_t top = max(lhs.top, rhs.top); 287 const int32_t bot = min(lhs.bottom, rhs.bottom); 288 if (top < bot) { 289 if (lhs.left < rhs.left) { // left-side rect 290 storage->left = lhs.left; 291 storage->top = top; 292 storage->right = rhs.left; 293 storage->bottom = bot; 294 storage++; 295 } 296 if (lhs.right > rhs.right) { // right-side rect 297 storage->left = rhs.right; 298 storage->top = top; 299 storage->right = lhs.right; 300 storage->bottom = bot; 301 storage++; 302 } 303 } 304 if (lhs.bottom > rhs.bottom) { // bottom rect 305 storage->left = lhs.left; 306 storage->top = rhs.bottom; 307 storage->right = lhs.right; 308 storage->bottom = lhs.bottom; 309 storage++; 310 } 311 reg.count = storage - reg.storage; 312 } 313 return reg; 314 } 315 bool isEmpty() const { 316 return count<=0; 317 } 318 private: 319 Rect storage[4]; 320 ssize_t count; 321 }; 322 323 struct region_iterator : public copybit_region_t { 324 region_iterator(const Region& region) 325 : b(region.begin()), e(region.end()) { 326 this->next = iterate; 327 } 328 private: 329 static int iterate(copybit_region_t const * self, copybit_rect_t* rect) { 330 region_iterator const* me = static_cast<region_iterator const*>(self); 331 if (me->b != me->e) { 332 *reinterpret_cast<Rect*>(rect) = *me->b++; 333 return 1; 334 } 335 return 0; 336 } 337 mutable Region::const_iterator b; 338 Region::const_iterator const e; 339 }; 340 341 void copyBlt( 342 android_native_buffer_t* dst, void* dst_vaddr, 343 android_native_buffer_t* src, void const* src_vaddr, 344 const Region& clip); 345 346 Rect dirtyRegion; 347 Rect oldDirtyRegion; 348}; 349 350egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 351 EGLConfig config, 352 int32_t depthFormat, 353 ANativeWindow* window) 354 : egl_surface_t(dpy, config, depthFormat), 355 nativeWindow(window), buffer(0), previousBuffer(0), module(0), 356 blitengine(0), bits(NULL) 357{ 358 hw_module_t const* pModule; 359 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 360 module = reinterpret_cast<gralloc_module_t const*>(pModule); 361 362 if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &pModule) == 0) { 363 copybit_open(pModule, &blitengine); 364 } 365 366 pixelFormatTable = gglGetPixelFormatTable(); 367 368 // keep a reference on the window 369 nativeWindow->common.incRef(&nativeWindow->common); 370 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width); 371 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height); 372} 373 374egl_window_surface_v2_t::~egl_window_surface_v2_t() { 375 if (buffer) { 376 buffer->common.decRef(&buffer->common); 377 } 378 if (previousBuffer) { 379 previousBuffer->common.decRef(&previousBuffer->common); 380 } 381 nativeWindow->common.decRef(&nativeWindow->common); 382 if (blitengine) { 383 copybit_close(blitengine); 384 } 385} 386 387EGLBoolean egl_window_surface_v2_t::connect() 388{ 389 // we're intending to do software rendering 390 native_window_set_usage(nativeWindow, 391 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); 392 393 // dequeue a buffer 394 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) { 395 return setError(EGL_BAD_ALLOC, EGL_FALSE); 396 } 397 398 // allocate a corresponding depth-buffer 399 width = buffer->width; 400 height = buffer->height; 401 if (depth.format) { 402 depth.width = width; 403 depth.height = height; 404 depth.stride = depth.width; // use the width here 405 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 406 if (depth.data == 0) { 407 return setError(EGL_BAD_ALLOC, EGL_FALSE); 408 } 409 } 410 411 // keep a reference on the buffer 412 buffer->common.incRef(&buffer->common); 413 414 // Lock the buffer 415 nativeWindow->lockBuffer(nativeWindow, buffer); 416 // pin the buffer down 417 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 418 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 419 LOGE("connect() failed to lock buffer %p (%ux%u)", 420 buffer, buffer->width, buffer->height); 421 return setError(EGL_BAD_ACCESS, EGL_FALSE); 422 // FIXME: we should make sure we're not accessing the buffer anymore 423 } 424 return EGL_TRUE; 425} 426 427void egl_window_surface_v2_t::disconnect() 428{ 429 if (buffer && bits) { 430 bits = NULL; 431 unlock(buffer); 432 } 433 // enqueue the last frame 434 nativeWindow->queueBuffer(nativeWindow, buffer); 435 if (buffer) { 436 buffer->common.decRef(&buffer->common); 437 buffer = 0; 438 } 439 if (previousBuffer) { 440 previousBuffer->common.decRef(&previousBuffer->common); 441 previousBuffer = 0; 442 } 443} 444 445status_t egl_window_surface_v2_t::lock( 446 android_native_buffer_t* buf, int usage, void** vaddr) 447{ 448 int err; 449 if (sw_gralloc_handle_t::validate(buf->handle) < 0) { 450 err = module->lock(module, buf->handle, 451 usage, 0, 0, buf->width, buf->height, vaddr); 452 } else { 453 sw_gralloc_handle_t const* hnd = 454 reinterpret_cast<sw_gralloc_handle_t const*>(buf->handle); 455 *vaddr = (void*)hnd->base; 456 err = NO_ERROR; 457 } 458 return err; 459} 460 461status_t egl_window_surface_v2_t::unlock(android_native_buffer_t* buf) 462{ 463 if (!buf) return BAD_VALUE; 464 int err = NO_ERROR; 465 if (sw_gralloc_handle_t::validate(buf->handle) < 0) { 466 err = module->unlock(module, buf->handle); 467 } 468 return err; 469} 470 471void egl_window_surface_v2_t::copyBlt( 472 android_native_buffer_t* dst, void* dst_vaddr, 473 android_native_buffer_t* src, void const* src_vaddr, 474 const Region& clip) 475{ 476 // FIXME: use copybit if possible 477 // NOTE: dst and src must be the same format 478 479 status_t err = NO_ERROR; 480 copybit_device_t* const copybit = blitengine; 481 if (copybit) { 482 copybit_image_t simg; 483 simg.w = src->stride; 484 simg.h = src->height; 485 simg.format = src->format; 486 simg.handle = const_cast<native_handle_t*>(src->handle); 487 488 copybit_image_t dimg; 489 dimg.w = dst->stride; 490 dimg.h = dst->height; 491 dimg.format = dst->format; 492 dimg.handle = const_cast<native_handle_t*>(dst->handle); 493 494 copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0); 495 copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255); 496 copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_DISABLE); 497 region_iterator it(clip); 498 err = copybit->blit(copybit, &dimg, &simg, &it); 499 if (err != NO_ERROR) { 500 LOGE("copybit failed (%s)", strerror(err)); 501 } 502 } 503 504 if (!copybit || err) { 505 Region::const_iterator cur = clip.begin(); 506 Region::const_iterator end = clip.end(); 507 508 const size_t bpp = pixelFormatTable[src->format].size; 509 const size_t dbpr = dst->stride * bpp; 510 const size_t sbpr = src->stride * bpp; 511 512 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 513 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 514 515 while (cur != end) { 516 const Rect& r(*cur++); 517 ssize_t w = r.right - r.left; 518 ssize_t h = r.bottom - r.top; 519 if (w <= 0 || h<=0) continue; 520 size_t size = w * bpp; 521 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 522 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 523 if (dbpr==sbpr && size==sbpr) { 524 size *= h; 525 h = 1; 526 } 527 do { 528 memcpy(d, s, size); 529 d += dbpr; 530 s += sbpr; 531 } while (--h > 0); 532 } 533 } 534} 535 536EGLBoolean egl_window_surface_v2_t::swapBuffers() 537{ 538 if (!buffer) { 539 return setError(EGL_BAD_ACCESS, EGL_FALSE); 540 } 541 542 /* 543 * Handle eglSetSwapRectangleANDROID() 544 * We copyback from the front buffer 545 */ 546 if (!dirtyRegion.isEmpty()) { 547 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 548 if (previousBuffer) { 549 const Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 550 if (!copyBack.isEmpty()) { 551 void* prevBits; 552 if (lock(previousBuffer, 553 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 554 // copy from previousBuffer to buffer 555 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 556 unlock(previousBuffer); 557 } 558 } 559 } 560 oldDirtyRegion = dirtyRegion; 561 } 562 563 if (previousBuffer) { 564 previousBuffer->common.decRef(&previousBuffer->common); 565 previousBuffer = 0; 566 } 567 568 unlock(buffer); 569 previousBuffer = buffer; 570 nativeWindow->queueBuffer(nativeWindow, buffer); 571 buffer = 0; 572 573 // dequeue a new buffer 574 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) { 575 576 // TODO: lockBuffer should rather be executed when the very first 577 // direct rendering occurs. 578 nativeWindow->lockBuffer(nativeWindow, buffer); 579 580 // reallocate the depth-buffer if needed 581 if ((width != buffer->width) || (height != buffer->height)) { 582 // TODO: we probably should reset the swap rect here 583 // if the window size has changed 584 width = buffer->width; 585 height = buffer->height; 586 if (depth.data) { 587 free(depth.data); 588 depth.width = width; 589 depth.height = height; 590 depth.stride = buffer->stride; 591 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 592 if (depth.data == 0) { 593 setError(EGL_BAD_ALLOC, EGL_FALSE); 594 return EGL_FALSE; 595 } 596 } 597 } 598 599 // keep a reference on the buffer 600 buffer->common.incRef(&buffer->common); 601 602 // finally pin the buffer down 603 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 604 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 605 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 606 buffer, buffer->width, buffer->height); 607 return setError(EGL_BAD_ACCESS, EGL_FALSE); 608 // FIXME: we should make sure we're not accessing the buffer anymore 609 } 610 } else { 611 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE); 612 } 613 614 return EGL_TRUE; 615} 616 617EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 618 EGLint l, EGLint t, EGLint w, EGLint h) 619{ 620 dirtyRegion = Rect(l, t, l+w, t+h); 621 return EGL_TRUE; 622} 623 624EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 625{ 626 GGLSurface buffer; 627 buffer.version = sizeof(GGLSurface); 628 buffer.width = this->buffer->width; 629 buffer.height = this->buffer->height; 630 buffer.stride = this->buffer->stride; 631 buffer.data = (GGLubyte*)bits; 632 buffer.format = this->buffer->format; 633 gl->rasterizer.procs.colorBuffer(gl, &buffer); 634 if (depth.data != gl->rasterizer.state.buffers.depth.data) 635 gl->rasterizer.procs.depthBuffer(gl, &depth); 636 637 return EGL_TRUE; 638} 639EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 640{ 641 GGLSurface buffer; 642 buffer.version = sizeof(GGLSurface); 643 buffer.width = this->buffer->width; 644 buffer.height = this->buffer->height; 645 buffer.stride = this->buffer->stride; 646 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 647 buffer.format = this->buffer->format; 648 gl->rasterizer.procs.readBuffer(gl, &buffer); 649 return EGL_TRUE; 650} 651EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 652 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 653} 654EGLint egl_window_surface_v2_t::getVerticalResolution() const { 655 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 656} 657EGLint egl_window_surface_v2_t::getRefreshRate() const { 658 return (60 * EGL_DISPLAY_SCALING); // FIXME 659} 660EGLint egl_window_surface_v2_t::getSwapBehavior() const 661{ 662 /* 663 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 664 * the content of the swapped buffer. 665 * 666 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 667 * 668 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 669 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 670 * is, everything outside of this area is preserved. 671 * 672 * This implementation of EGL assumes the later case. 673 * 674 */ 675 676 return EGL_BUFFER_DESTROYED; 677} 678 679// ---------------------------------------------------------------------------- 680 681struct egl_pixmap_surface_t : public egl_surface_t 682{ 683 egl_pixmap_surface_t( 684 EGLDisplay dpy, EGLConfig config, 685 int32_t depthFormat, 686 egl_native_pixmap_t const * pixmap); 687 688 virtual ~egl_pixmap_surface_t() { } 689 690 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 691 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 692 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 693 virtual EGLint getWidth() const { return nativePixmap.width; } 694 virtual EGLint getHeight() const { return nativePixmap.height; } 695private: 696 egl_native_pixmap_t nativePixmap; 697}; 698 699egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 700 EGLConfig config, 701 int32_t depthFormat, 702 egl_native_pixmap_t const * pixmap) 703 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 704{ 705 if (depthFormat) { 706 depth.width = pixmap->width; 707 depth.height = pixmap->height; 708 depth.stride = depth.width; // use the width here 709 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 710 if (depth.data == 0) { 711 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 712 } 713 } 714} 715EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 716{ 717 GGLSurface buffer; 718 buffer.version = sizeof(GGLSurface); 719 buffer.width = nativePixmap.width; 720 buffer.height = nativePixmap.height; 721 buffer.stride = nativePixmap.stride; 722 buffer.data = nativePixmap.data; 723 buffer.format = nativePixmap.format; 724 725 gl->rasterizer.procs.colorBuffer(gl, &buffer); 726 if (depth.data != gl->rasterizer.state.buffers.depth.data) 727 gl->rasterizer.procs.depthBuffer(gl, &depth); 728 return EGL_TRUE; 729} 730EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 731{ 732 GGLSurface buffer; 733 buffer.version = sizeof(GGLSurface); 734 buffer.width = nativePixmap.width; 735 buffer.height = nativePixmap.height; 736 buffer.stride = nativePixmap.stride; 737 buffer.data = nativePixmap.data; 738 buffer.format = nativePixmap.format; 739 gl->rasterizer.procs.readBuffer(gl, &buffer); 740 return EGL_TRUE; 741} 742 743// ---------------------------------------------------------------------------- 744 745struct egl_pbuffer_surface_t : public egl_surface_t 746{ 747 egl_pbuffer_surface_t( 748 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 749 int32_t w, int32_t h, int32_t f); 750 751 virtual ~egl_pbuffer_surface_t(); 752 753 virtual bool initCheck() const { return pbuffer.data != 0; } 754 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 755 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 756 virtual EGLint getWidth() const { return pbuffer.width; } 757 virtual EGLint getHeight() const { return pbuffer.height; } 758private: 759 GGLSurface pbuffer; 760}; 761 762egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 763 EGLConfig config, int32_t depthFormat, 764 int32_t w, int32_t h, int32_t f) 765 : egl_surface_t(dpy, config, depthFormat) 766{ 767 size_t size = w*h; 768 switch (f) { 769 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 770 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 771 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 772 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break; 773 default: 774 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 775 pbuffer.data = 0; 776 break; 777 } 778 pbuffer.version = sizeof(GGLSurface); 779 pbuffer.width = w; 780 pbuffer.height = h; 781 pbuffer.stride = w; 782 pbuffer.data = (GGLubyte*)malloc(size); 783 pbuffer.format = f; 784 785 if (depthFormat) { 786 depth.width = pbuffer.width; 787 depth.height = pbuffer.height; 788 depth.stride = depth.width; // use the width here 789 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 790 if (depth.data == 0) { 791 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 792 return; 793 } 794 } 795} 796egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 797 free(pbuffer.data); 798} 799EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 800{ 801 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 802 if (depth.data != gl->rasterizer.state.buffers.depth.data) 803 gl->rasterizer.procs.depthBuffer(gl, &depth); 804 return EGL_TRUE; 805} 806EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 807{ 808 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 809 return EGL_TRUE; 810} 811 812// ---------------------------------------------------------------------------- 813 814struct config_pair_t { 815 GLint key; 816 GLint value; 817}; 818 819struct configs_t { 820 const config_pair_t* array; 821 int size; 822}; 823 824struct config_management_t { 825 GLint key; 826 bool (*match)(GLint reqValue, GLint confValue); 827 static bool atLeast(GLint reqValue, GLint confValue) { 828 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 829 } 830 static bool exact(GLint reqValue, GLint confValue) { 831 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 832 } 833 static bool mask(GLint reqValue, GLint confValue) { 834 return (confValue & reqValue) == reqValue; 835 } 836}; 837 838// ---------------------------------------------------------------------------- 839 840#define VERSION_MAJOR 1 841#define VERSION_MINOR 2 842static char const * const gVendorString = "Google Inc."; 843static char const * const gVersionString = "1.2 Android Driver 1.2.0"; 844static char const * const gClientApiString = "OpenGL ES"; 845static char const * const gExtensionsString = 846 "EGL_KHR_image_base " 847 // "KHR_image_pixmap " 848 "EGL_ANDROID_image_native_buffer " 849 "EGL_ANDROID_swap_rectangle " 850 ; 851 852// ---------------------------------------------------------------------------- 853 854struct extention_map_t { 855 const char * const name; 856 __eglMustCastToProperFunctionPointerType address; 857}; 858 859static const extention_map_t gExtentionMap[] = { 860 { "glDrawTexsOES", 861 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 862 { "glDrawTexiOES", 863 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 864 { "glDrawTexfOES", 865 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 866 { "glDrawTexxOES", 867 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 868 { "glDrawTexsvOES", 869 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 870 { "glDrawTexivOES", 871 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 872 { "glDrawTexfvOES", 873 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 874 { "glDrawTexxvOES", 875 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 876 { "glQueryMatrixxOES", 877 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 878 { "glEGLImageTargetTexture2DOES", 879 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 880 { "glEGLImageTargetRenderbufferStorageOES", 881 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 882 { "glClipPlanef", 883 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 884 { "glClipPlanex", 885 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 886 { "glBindBuffer", 887 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 888 { "glBufferData", 889 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 890 { "glBufferSubData", 891 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 892 { "glDeleteBuffers", 893 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 894 { "glGenBuffers", 895 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 896 { "eglCreateImageKHR", 897 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 898 { "eglDestroyImageKHR", 899 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 900 { "eglSetSwapRectangleANDROID", 901 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 902}; 903 904/* 905 * In the lists below, attributes names MUST be sorted. 906 * Additionally, all configs must be sorted according to 907 * the EGL specification. 908 */ 909 910static config_pair_t const config_base_attribute_list[] = { 911 { EGL_STENCIL_SIZE, 0 }, 912 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 913 { EGL_LEVEL, 0 }, 914 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 915 { EGL_MAX_PBUFFER_PIXELS, 916 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 917 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 918 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 919 { EGL_NATIVE_VISUAL_ID, 0 }, 920 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 921 { EGL_SAMPLES, 0 }, 922 { EGL_SAMPLE_BUFFERS, 0 }, 923 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 924 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 925 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 926 { EGL_TRANSPARENT_RED_VALUE, 0 }, 927 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 928 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 929 { EGL_MIN_SWAP_INTERVAL, 1 }, 930 { EGL_MAX_SWAP_INTERVAL, 1 }, 931 { EGL_LUMINANCE_SIZE, 0 }, 932 { EGL_ALPHA_MASK_SIZE, 0 }, 933 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER }, 934 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 935 { EGL_CONFORMANT, 0 } 936}; 937 938// These configs can override the base attribute list 939// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 940 941// 565 configs 942static config_pair_t const config_0_attribute_list[] = { 943 { EGL_BUFFER_SIZE, 16 }, 944 { EGL_ALPHA_SIZE, 0 }, 945 { EGL_BLUE_SIZE, 5 }, 946 { EGL_GREEN_SIZE, 6 }, 947 { EGL_RED_SIZE, 5 }, 948 { EGL_DEPTH_SIZE, 0 }, 949 { EGL_CONFIG_ID, 0 }, 950 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 951}; 952 953static config_pair_t const config_1_attribute_list[] = { 954 { EGL_BUFFER_SIZE, 16 }, 955 { EGL_ALPHA_SIZE, 0 }, 956 { EGL_BLUE_SIZE, 5 }, 957 { EGL_GREEN_SIZE, 6 }, 958 { EGL_RED_SIZE, 5 }, 959 { EGL_DEPTH_SIZE, 16 }, 960 { EGL_CONFIG_ID, 1 }, 961 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 962}; 963 964// RGB 888 configs 965static config_pair_t const config_2_attribute_list[] = { 966 { EGL_BUFFER_SIZE, 32 }, 967 { EGL_ALPHA_SIZE, 0 }, 968 { EGL_BLUE_SIZE, 8 }, 969 { EGL_GREEN_SIZE, 8 }, 970 { EGL_RED_SIZE, 8 }, 971 { EGL_DEPTH_SIZE, 0 }, 972 { EGL_CONFIG_ID, 6 }, 973 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 974}; 975 976static config_pair_t const config_3_attribute_list[] = { 977 { EGL_BUFFER_SIZE, 32 }, 978 { EGL_ALPHA_SIZE, 0 }, 979 { EGL_BLUE_SIZE, 8 }, 980 { EGL_GREEN_SIZE, 8 }, 981 { EGL_RED_SIZE, 8 }, 982 { EGL_DEPTH_SIZE, 16 }, 983 { EGL_CONFIG_ID, 7 }, 984 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 985}; 986 987// 8888 configs 988static config_pair_t const config_4_attribute_list[] = { 989 { EGL_BUFFER_SIZE, 32 }, 990 { EGL_ALPHA_SIZE, 8 }, 991 { EGL_BLUE_SIZE, 8 }, 992 { EGL_GREEN_SIZE, 8 }, 993 { EGL_RED_SIZE, 8 }, 994 { EGL_DEPTH_SIZE, 0 }, 995 { EGL_CONFIG_ID, 2 }, 996 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 997}; 998 999static config_pair_t const config_5_attribute_list[] = { 1000 { EGL_BUFFER_SIZE, 32 }, 1001 { EGL_ALPHA_SIZE, 8 }, 1002 { EGL_BLUE_SIZE, 8 }, 1003 { EGL_GREEN_SIZE, 8 }, 1004 { EGL_RED_SIZE, 8 }, 1005 { EGL_DEPTH_SIZE, 16 }, 1006 { EGL_CONFIG_ID, 3 }, 1007 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1008}; 1009 1010// A8 configs 1011static config_pair_t const config_6_attribute_list[] = { 1012 { EGL_BUFFER_SIZE, 8 }, 1013 { EGL_ALPHA_SIZE, 8 }, 1014 { EGL_BLUE_SIZE, 0 }, 1015 { EGL_GREEN_SIZE, 0 }, 1016 { EGL_RED_SIZE, 0 }, 1017 { EGL_DEPTH_SIZE, 0 }, 1018 { EGL_CONFIG_ID, 4 }, 1019 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1020}; 1021 1022static config_pair_t const config_7_attribute_list[] = { 1023 { EGL_BUFFER_SIZE, 8 }, 1024 { EGL_ALPHA_SIZE, 8 }, 1025 { EGL_BLUE_SIZE, 0 }, 1026 { EGL_GREEN_SIZE, 0 }, 1027 { EGL_RED_SIZE, 0 }, 1028 { EGL_DEPTH_SIZE, 16 }, 1029 { EGL_CONFIG_ID, 5 }, 1030 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1031}; 1032 1033static configs_t const gConfigs[] = { 1034 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 1035 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 1036 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 1037 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 1038 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 1039 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 1040 { config_6_attribute_list, NELEM(config_6_attribute_list) }, 1041 { config_7_attribute_list, NELEM(config_7_attribute_list) }, 1042}; 1043 1044static config_management_t const gConfigManagement[] = { 1045 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 1046 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1047 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1048 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1049 { EGL_RED_SIZE, config_management_t::atLeast }, 1050 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1051 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1052 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1053 { EGL_CONFIG_ID, config_management_t::exact }, 1054 { EGL_LEVEL, config_management_t::exact }, 1055 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::exact }, 1056 { EGL_MAX_PBUFFER_PIXELS, config_management_t::exact }, 1057 { EGL_MAX_PBUFFER_WIDTH, config_management_t::exact }, 1058 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1059 { EGL_NATIVE_VISUAL_ID, config_management_t::exact }, 1060 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1061 { EGL_SAMPLES, config_management_t::exact }, 1062 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1063 { EGL_SURFACE_TYPE, config_management_t::mask }, 1064 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1065 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1066 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1067 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1068 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1069 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1070 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1071 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1072 { EGL_LUMINANCE_SIZE, config_management_t::atLeast }, 1073 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast }, 1074 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact }, 1075 { EGL_RENDERABLE_TYPE, config_management_t::mask }, 1076 { EGL_CONFORMANT, config_management_t::mask } 1077}; 1078 1079 1080static config_pair_t const config_defaults[] = { 1081 // attributes that are not specified are simply ignored, if a particular 1082 // one needs not be ignored, it must be specified here, eg: 1083 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1084}; 1085 1086// ---------------------------------------------------------------------------- 1087 1088static status_t getConfigFormatInfo(EGLint configID, 1089 int32_t& pixelFormat, int32_t& depthFormat) 1090{ 1091 switch(configID) { 1092 case 0: 1093 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1094 depthFormat = 0; 1095 break; 1096 case 1: 1097 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1098 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1099 break; 1100 case 2: 1101 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1102 depthFormat = 0; 1103 break; 1104 case 3: 1105 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1106 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1107 break; 1108 case 4: 1109 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1110 depthFormat = 0; 1111 break; 1112 case 5: 1113 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1114 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1115 break; 1116 case 6: 1117 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1118 depthFormat = 0; 1119 break; 1120 case 7: 1121 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1122 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1123 break; 1124 default: 1125 return NAME_NOT_FOUND; 1126 } 1127 return NO_ERROR; 1128} 1129 1130// ---------------------------------------------------------------------------- 1131 1132template<typename T> 1133static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1134{ 1135 while (first <= last) { 1136 int mid = (first + last) / 2; 1137 if (key > sortedArray[mid].key) { 1138 first = mid + 1; 1139 } else if (key < sortedArray[mid].key) { 1140 last = mid - 1; 1141 } else { 1142 return mid; 1143 } 1144 } 1145 return -1; 1146} 1147 1148static int isAttributeMatching(int i, EGLint attr, EGLint val) 1149{ 1150 // look for the attribute in all of our configs 1151 config_pair_t const* configFound = gConfigs[i].array; 1152 int index = binarySearch<config_pair_t>( 1153 gConfigs[i].array, 1154 0, gConfigs[i].size-1, 1155 attr); 1156 if (index < 0) { 1157 configFound = config_base_attribute_list; 1158 index = binarySearch<config_pair_t>( 1159 config_base_attribute_list, 1160 0, NELEM(config_base_attribute_list)-1, 1161 attr); 1162 } 1163 if (index >= 0) { 1164 // attribute found, check if this config could match 1165 int cfgMgtIndex = binarySearch<config_management_t>( 1166 gConfigManagement, 1167 0, NELEM(gConfigManagement)-1, 1168 attr); 1169 if (cfgMgtIndex >= 0) { 1170 bool match = gConfigManagement[cfgMgtIndex].match( 1171 val, configFound[index].value); 1172 if (match) { 1173 // this config matches 1174 return 1; 1175 } 1176 } else { 1177 // attribute not found. this should NEVER happen. 1178 } 1179 } else { 1180 // error, this attribute doesn't exist 1181 } 1182 return 0; 1183} 1184 1185static int makeCurrent(ogles_context_t* gl) 1186{ 1187 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1188 if (gl) { 1189 egl_context_t* c = egl_context_t::context(gl); 1190 if (c->flags & egl_context_t::IS_CURRENT) { 1191 if (current != gl) { 1192 // it is an error to set a context current, if it's already 1193 // current to another thread 1194 return -1; 1195 } 1196 } else { 1197 if (current) { 1198 // mark the current context as not current, and flush 1199 glFlush(); 1200 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1201 } 1202 } 1203 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1204 // The context is not current, make it current! 1205 setGlThreadSpecific(gl); 1206 c->flags |= egl_context_t::IS_CURRENT; 1207 } 1208 } else { 1209 if (current) { 1210 // mark the current context as not current, and flush 1211 glFlush(); 1212 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1213 } 1214 // this thread has no context attached to it 1215 setGlThreadSpecific(0); 1216 } 1217 return 0; 1218} 1219 1220static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1221 EGLint attribute, EGLint *value) 1222{ 1223 size_t numConfigs = NELEM(gConfigs); 1224 int index = (int)config; 1225 if (uint32_t(index) >= numConfigs) 1226 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1227 1228 int attrIndex; 1229 attrIndex = binarySearch<config_pair_t>( 1230 gConfigs[index].array, 1231 0, gConfigs[index].size-1, 1232 attribute); 1233 if (attrIndex>=0) { 1234 *value = gConfigs[index].array[attrIndex].value; 1235 return EGL_TRUE; 1236 } 1237 1238 attrIndex = binarySearch<config_pair_t>( 1239 config_base_attribute_list, 1240 0, NELEM(config_base_attribute_list)-1, 1241 attribute); 1242 if (attrIndex>=0) { 1243 *value = config_base_attribute_list[attrIndex].value; 1244 return EGL_TRUE; 1245 } 1246 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1247} 1248 1249static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1250 NativeWindowType window, const EGLint *attrib_list) 1251{ 1252 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1253 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1254 if (window == 0) 1255 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1256 1257 EGLint surfaceType; 1258 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1259 return EGL_FALSE; 1260 1261 if (!(surfaceType & EGL_WINDOW_BIT)) 1262 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1263 1264 if (static_cast<ANativeWindow*>(window)->common.magic != 1265 ANDROID_NATIVE_WINDOW_MAGIC) { 1266 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1267 } 1268 1269 EGLint configID; 1270 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1271 return EGL_FALSE; 1272 1273 int32_t depthFormat; 1274 int32_t pixelFormat; 1275 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1276 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1277 } 1278 1279 // FIXME: we don't have access to the pixelFormat here just yet. 1280 // (it's possible that the surface is not fully initialized) 1281 // maybe this should be done after the page-flip 1282 //if (EGLint(info.format) != pixelFormat) 1283 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1284 1285 egl_surface_t* surface; 1286 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1287 static_cast<ANativeWindow*>(window)); 1288 1289 if (!surface->initCheck()) { 1290 // there was a problem in the ctor, the error 1291 // flag has been set. 1292 delete surface; 1293 surface = 0; 1294 } 1295 return surface; 1296} 1297 1298static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1299 NativePixmapType pixmap, const EGLint *attrib_list) 1300{ 1301 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1302 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1303 if (pixmap == 0) 1304 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1305 1306 EGLint surfaceType; 1307 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1308 return EGL_FALSE; 1309 1310 if (!(surfaceType & EGL_PIXMAP_BIT)) 1311 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1312 1313 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1314 sizeof(egl_native_pixmap_t)) { 1315 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1316 } 1317 1318 EGLint configID; 1319 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1320 return EGL_FALSE; 1321 1322 int32_t depthFormat; 1323 int32_t pixelFormat; 1324 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1325 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1326 } 1327 1328 if (pixmap->format != pixelFormat) 1329 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1330 1331 egl_surface_t* surface = 1332 new egl_pixmap_surface_t(dpy, config, depthFormat, 1333 static_cast<egl_native_pixmap_t*>(pixmap)); 1334 1335 if (!surface->initCheck()) { 1336 // there was a problem in the ctor, the error 1337 // flag has been set. 1338 delete surface; 1339 surface = 0; 1340 } 1341 return surface; 1342} 1343 1344static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1345 const EGLint *attrib_list) 1346{ 1347 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1348 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1349 1350 EGLint surfaceType; 1351 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1352 return EGL_FALSE; 1353 1354 if (!(surfaceType & EGL_PBUFFER_BIT)) 1355 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1356 1357 EGLint configID; 1358 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1359 return EGL_FALSE; 1360 1361 int32_t depthFormat; 1362 int32_t pixelFormat; 1363 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1364 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1365 } 1366 1367 int32_t w = 0; 1368 int32_t h = 0; 1369 while (attrib_list[0]) { 1370 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1371 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1372 attrib_list+=2; 1373 } 1374 1375 egl_surface_t* surface = 1376 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1377 1378 if (!surface->initCheck()) { 1379 // there was a problem in the ctor, the error 1380 // flag has been set. 1381 delete surface; 1382 surface = 0; 1383 } 1384 return surface; 1385} 1386 1387// ---------------------------------------------------------------------------- 1388}; // namespace android 1389// ---------------------------------------------------------------------------- 1390 1391using namespace android; 1392 1393// ---------------------------------------------------------------------------- 1394// Initialization 1395// ---------------------------------------------------------------------------- 1396 1397EGLDisplay eglGetDisplay(NativeDisplayType display) 1398{ 1399#ifndef HAVE_ANDROID_OS 1400 // this just needs to be done once 1401 if (gGLKey == -1) { 1402 pthread_mutex_lock(&gInitMutex); 1403 if (gGLKey == -1) 1404 pthread_key_create(&gGLKey, NULL); 1405 pthread_mutex_unlock(&gInitMutex); 1406 } 1407#endif 1408 if (display == EGL_DEFAULT_DISPLAY) { 1409 EGLDisplay dpy = (EGLDisplay)1; 1410 egl_display_t& d = egl_display_t::get_display(dpy); 1411 d.type = display; 1412 return dpy; 1413 } 1414 return EGL_NO_DISPLAY; 1415} 1416 1417EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1418{ 1419 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1420 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1421 1422 EGLBoolean res = EGL_TRUE; 1423 egl_display_t& d = egl_display_t::get_display(dpy); 1424 1425 if (android_atomic_inc(&d.initialized) == 0) { 1426 // initialize stuff here if needed 1427 //pthread_mutex_lock(&gInitMutex); 1428 //pthread_mutex_unlock(&gInitMutex); 1429 } 1430 1431 if (res == EGL_TRUE) { 1432 if (major != NULL) *major = VERSION_MAJOR; 1433 if (minor != NULL) *minor = VERSION_MINOR; 1434 } 1435 return res; 1436} 1437 1438EGLBoolean eglTerminate(EGLDisplay dpy) 1439{ 1440 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1441 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1442 1443 EGLBoolean res = EGL_TRUE; 1444 egl_display_t& d = egl_display_t::get_display(dpy); 1445 if (android_atomic_dec(&d.initialized) == 1) { 1446 // TODO: destroy all resources (surfaces, contexts, etc...) 1447 //pthread_mutex_lock(&gInitMutex); 1448 //pthread_mutex_unlock(&gInitMutex); 1449 } 1450 return res; 1451} 1452 1453// ---------------------------------------------------------------------------- 1454// configuration 1455// ---------------------------------------------------------------------------- 1456 1457EGLBoolean eglGetConfigs( EGLDisplay dpy, 1458 EGLConfig *configs, 1459 EGLint config_size, EGLint *num_config) 1460{ 1461 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1462 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1463 1464 GLint numConfigs = NELEM(gConfigs); 1465 if (!configs) { 1466 *num_config = numConfigs; 1467 return EGL_TRUE; 1468 } 1469 GLint i; 1470 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1471 *configs++ = (EGLConfig)i; 1472 } 1473 *num_config = i; 1474 return EGL_TRUE; 1475} 1476 1477EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1478 EGLConfig *configs, EGLint config_size, 1479 EGLint *num_config) 1480{ 1481 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1482 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1483 1484 if (ggl_unlikely(num_config==0)) { 1485 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1486 } 1487 1488 if (ggl_unlikely(attrib_list==0)) { 1489 /* 1490 * A NULL attrib_list should be treated as though it was an empty 1491 * one (terminated with EGL_NONE) as defined in 1492 * section 3.4.1 "Querying Configurations" in the EGL specification. 1493 */ 1494 static const EGLint dummy = EGL_NONE; 1495 attrib_list = &dummy; 1496 } 1497 1498 int numAttributes = 0; 1499 int numConfigs = NELEM(gConfigs); 1500 uint32_t possibleMatch = (1<<numConfigs)-1; 1501 while(possibleMatch && *attrib_list != EGL_NONE) { 1502 numAttributes++; 1503 EGLint attr = *attrib_list++; 1504 EGLint val = *attrib_list++; 1505 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1506 if (!(possibleMatch & (1<<i))) 1507 continue; 1508 if (isAttributeMatching(i, attr, val) == 0) { 1509 possibleMatch &= ~(1<<i); 1510 } 1511 } 1512 } 1513 1514 // now, handle the attributes which have a useful default value 1515 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) { 1516 // see if this attribute was specified, if not, apply its 1517 // default value 1518 if (binarySearch<config_pair_t>( 1519 (config_pair_t const*)attrib_list, 1520 0, numAttributes-1, 1521 config_defaults[j].key) < 0) 1522 { 1523 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1524 if (!(possibleMatch & (1<<i))) 1525 continue; 1526 if (isAttributeMatching(i, 1527 config_defaults[j].key, 1528 config_defaults[j].value) == 0) 1529 { 1530 possibleMatch &= ~(1<<i); 1531 } 1532 } 1533 } 1534 } 1535 1536 // return the configurations found 1537 int n=0; 1538 if (possibleMatch) { 1539 if (configs) { 1540 for (int i=0 ; config_size && i<numConfigs ; i++) { 1541 if (possibleMatch & (1<<i)) { 1542 *configs++ = (EGLConfig)i; 1543 config_size--; 1544 n++; 1545 } 1546 } 1547 } else { 1548 for (int i=0 ; i<numConfigs ; i++) { 1549 if (possibleMatch & (1<<i)) { 1550 n++; 1551 } 1552 } 1553 } 1554 } 1555 *num_config = n; 1556 return EGL_TRUE; 1557} 1558 1559EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1560 EGLint attribute, EGLint *value) 1561{ 1562 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1563 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1564 1565 return getConfigAttrib(dpy, config, attribute, value); 1566} 1567 1568// ---------------------------------------------------------------------------- 1569// surfaces 1570// ---------------------------------------------------------------------------- 1571 1572EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1573 NativeWindowType window, 1574 const EGLint *attrib_list) 1575{ 1576 return createWindowSurface(dpy, config, window, attrib_list); 1577} 1578 1579EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1580 NativePixmapType pixmap, 1581 const EGLint *attrib_list) 1582{ 1583 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1584} 1585 1586EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1587 const EGLint *attrib_list) 1588{ 1589 return createPbufferSurface(dpy, config, attrib_list); 1590} 1591 1592EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1593{ 1594 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1595 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1596 if (eglSurface != EGL_NO_SURFACE) { 1597 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1598 if (!surface->isValid()) 1599 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1600 if (surface->dpy != dpy) 1601 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1602 if (surface->ctx) { 1603 // FIXME: this surface is current check what the spec says 1604 surface->disconnect(); 1605 surface->ctx = 0; 1606 } 1607 delete surface; 1608 } 1609 return EGL_TRUE; 1610} 1611 1612EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1613 EGLint attribute, EGLint *value) 1614{ 1615 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1616 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1617 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1618 if (!surface->isValid()) 1619 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1620 if (surface->dpy != dpy) 1621 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1622 1623 EGLBoolean ret = EGL_TRUE; 1624 switch (attribute) { 1625 case EGL_CONFIG_ID: 1626 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1627 break; 1628 case EGL_WIDTH: 1629 *value = surface->getWidth(); 1630 break; 1631 case EGL_HEIGHT: 1632 *value = surface->getHeight(); 1633 break; 1634 case EGL_LARGEST_PBUFFER: 1635 // not modified for a window or pixmap surface 1636 break; 1637 case EGL_TEXTURE_FORMAT: 1638 *value = EGL_NO_TEXTURE; 1639 break; 1640 case EGL_TEXTURE_TARGET: 1641 *value = EGL_NO_TEXTURE; 1642 break; 1643 case EGL_MIPMAP_TEXTURE: 1644 *value = EGL_FALSE; 1645 break; 1646 case EGL_MIPMAP_LEVEL: 1647 *value = 0; 1648 break; 1649 case EGL_RENDER_BUFFER: 1650 // TODO: return the real RENDER_BUFFER here 1651 *value = EGL_BACK_BUFFER; 1652 break; 1653 case EGL_HORIZONTAL_RESOLUTION: 1654 // pixel/mm * EGL_DISPLAY_SCALING 1655 *value = surface->getHorizontalResolution(); 1656 break; 1657 case EGL_VERTICAL_RESOLUTION: 1658 // pixel/mm * EGL_DISPLAY_SCALING 1659 *value = surface->getVerticalResolution(); 1660 break; 1661 case EGL_PIXEL_ASPECT_RATIO: { 1662 // w/h * EGL_DISPLAY_SCALING 1663 int wr = surface->getHorizontalResolution(); 1664 int hr = surface->getVerticalResolution(); 1665 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1666 } break; 1667 case EGL_SWAP_BEHAVIOR: 1668 *value = surface->getSwapBehavior(); 1669 break; 1670 default: 1671 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1672 } 1673 return ret; 1674} 1675 1676EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1677 EGLContext share_list, const EGLint *attrib_list) 1678{ 1679 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1680 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1681 1682 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1683 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1684 1685 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1686 c->flags = egl_context_t::NEVER_CURRENT; 1687 c->dpy = dpy; 1688 c->config = config; 1689 c->read = 0; 1690 c->draw = 0; 1691 return (EGLContext)gl; 1692} 1693 1694EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1695{ 1696 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1697 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1698 egl_context_t* c = egl_context_t::context(ctx); 1699 if (c->flags & egl_context_t::IS_CURRENT) 1700 setGlThreadSpecific(0); 1701 ogles_uninit((ogles_context_t*)ctx); 1702 return EGL_TRUE; 1703} 1704 1705EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1706 EGLSurface read, EGLContext ctx) 1707{ 1708 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1709 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1710 if (draw) { 1711 egl_surface_t* s = (egl_surface_t*)draw; 1712 if (!s->isValid()) 1713 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1714 if (s->dpy != dpy) 1715 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1716 // TODO: check that draw is compatible with the context 1717 } 1718 if (read && read!=draw) { 1719 egl_surface_t* s = (egl_surface_t*)read; 1720 if (!s->isValid()) 1721 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1722 if (s->dpy != dpy) 1723 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1724 // TODO: check that read is compatible with the context 1725 } 1726 1727 EGLContext current_ctx = EGL_NO_CONTEXT; 1728 1729 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1730 return setError(EGL_BAD_MATCH, EGL_FALSE); 1731 1732 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1733 return setError(EGL_BAD_MATCH, EGL_FALSE); 1734 1735 if (ctx == EGL_NO_CONTEXT) { 1736 // if we're detaching, we need the current context 1737 current_ctx = (EGLContext)getGlThreadSpecific(); 1738 } else { 1739 egl_context_t* c = egl_context_t::context(ctx); 1740 egl_surface_t* d = (egl_surface_t*)draw; 1741 egl_surface_t* r = (egl_surface_t*)read; 1742 if ((d && d->ctx && d->ctx != ctx) || 1743 (r && r->ctx && r->ctx != ctx)) { 1744 // one of the surface is bound to a context in another thread 1745 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1746 } 1747 } 1748 1749 ogles_context_t* gl = (ogles_context_t*)ctx; 1750 if (makeCurrent(gl) == 0) { 1751 if (ctx) { 1752 egl_context_t* c = egl_context_t::context(ctx); 1753 egl_surface_t* d = (egl_surface_t*)draw; 1754 egl_surface_t* r = (egl_surface_t*)read; 1755 1756 if (c->draw) { 1757 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1758 s->disconnect(); 1759 } 1760 if (c->read) { 1761 // FIXME: unlock/disconnect the read surface too 1762 } 1763 1764 c->draw = draw; 1765 c->read = read; 1766 1767 if (c->flags & egl_context_t::NEVER_CURRENT) { 1768 c->flags &= ~egl_context_t::NEVER_CURRENT; 1769 GLint w = 0; 1770 GLint h = 0; 1771 if (draw) { 1772 w = d->getWidth(); 1773 h = d->getHeight(); 1774 } 1775 ogles_surfaceport(gl, 0, 0); 1776 ogles_viewport(gl, 0, 0, w, h); 1777 ogles_scissor(gl, 0, 0, w, h); 1778 } 1779 if (d) { 1780 if (d->connect() == EGL_FALSE) { 1781 return EGL_FALSE; 1782 } 1783 d->ctx = ctx; 1784 d->bindDrawSurface(gl); 1785 } 1786 if (r) { 1787 // FIXME: lock/connect the read surface too 1788 r->ctx = ctx; 1789 r->bindReadSurface(gl); 1790 } 1791 } else { 1792 // if surfaces were bound to the context bound to this thread 1793 // mark then as unbound. 1794 if (current_ctx) { 1795 egl_context_t* c = egl_context_t::context(current_ctx); 1796 egl_surface_t* d = (egl_surface_t*)c->draw; 1797 egl_surface_t* r = (egl_surface_t*)c->read; 1798 if (d) { 1799 c->draw = 0; 1800 d->ctx = EGL_NO_CONTEXT; 1801 d->disconnect(); 1802 } 1803 if (r) { 1804 c->read = 0; 1805 r->ctx = EGL_NO_CONTEXT; 1806 // FIXME: unlock/disconnect the read surface too 1807 } 1808 } 1809 } 1810 return EGL_TRUE; 1811 } 1812 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1813} 1814 1815EGLContext eglGetCurrentContext(void) 1816{ 1817 // eglGetCurrentContext returns the current EGL rendering context, 1818 // as specified by eglMakeCurrent. If no context is current, 1819 // EGL_NO_CONTEXT is returned. 1820 return (EGLContext)getGlThreadSpecific(); 1821} 1822 1823EGLSurface eglGetCurrentSurface(EGLint readdraw) 1824{ 1825 // eglGetCurrentSurface returns the read or draw surface attached 1826 // to the current EGL rendering context, as specified by eglMakeCurrent. 1827 // If no context is current, EGL_NO_SURFACE is returned. 1828 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1829 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1830 egl_context_t* c = egl_context_t::context(ctx); 1831 if (readdraw == EGL_READ) { 1832 return c->read; 1833 } else if (readdraw == EGL_DRAW) { 1834 return c->draw; 1835 } 1836 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1837} 1838 1839EGLDisplay eglGetCurrentDisplay(void) 1840{ 1841 // eglGetCurrentDisplay returns the current EGL display connection 1842 // for the current EGL rendering context, as specified by eglMakeCurrent. 1843 // If no context is current, EGL_NO_DISPLAY is returned. 1844 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1845 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1846 egl_context_t* c = egl_context_t::context(ctx); 1847 return c->dpy; 1848} 1849 1850EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1851 EGLint attribute, EGLint *value) 1852{ 1853 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1854 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1855 egl_context_t* c = egl_context_t::context(ctx); 1856 switch (attribute) { 1857 case EGL_CONFIG_ID: 1858 // Returns the ID of the EGL frame buffer configuration with 1859 // respect to which the context was created 1860 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1861 } 1862 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1863} 1864 1865EGLBoolean eglWaitGL(void) 1866{ 1867 return EGL_TRUE; 1868} 1869 1870EGLBoolean eglWaitNative(EGLint engine) 1871{ 1872 return EGL_TRUE; 1873} 1874 1875EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1876{ 1877 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1878 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1879 1880 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1881 if (!d->isValid()) 1882 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1883 if (d->dpy != dpy) 1884 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1885 1886 // post the surface 1887 d->swapBuffers(); 1888 1889 // if it's bound to a context, update the buffer 1890 if (d->ctx != EGL_NO_CONTEXT) { 1891 d->bindDrawSurface((ogles_context_t*)d->ctx); 1892 // if this surface is also the read surface of the context 1893 // it is bound to, make sure to update the read buffer as well. 1894 // The EGL spec is a little unclear about this. 1895 egl_context_t* c = egl_context_t::context(d->ctx); 1896 if (c->read == draw) { 1897 d->bindReadSurface((ogles_context_t*)d->ctx); 1898 } 1899 } 1900 1901 return EGL_TRUE; 1902} 1903 1904EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1905 NativePixmapType target) 1906{ 1907 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1908 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1909 // TODO: eglCopyBuffers() 1910 return EGL_FALSE; 1911} 1912 1913EGLint eglGetError(void) 1914{ 1915 return getError(); 1916} 1917 1918const char* eglQueryString(EGLDisplay dpy, EGLint name) 1919{ 1920 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1921 return setError(EGL_BAD_DISPLAY, (const char*)0); 1922 1923 switch (name) { 1924 case EGL_VENDOR: 1925 return gVendorString; 1926 case EGL_VERSION: 1927 return gVersionString; 1928 case EGL_EXTENSIONS: 1929 return gExtensionsString; 1930 case EGL_CLIENT_APIS: 1931 return gClientApiString; 1932 } 1933 return setError(EGL_BAD_PARAMETER, (const char *)0); 1934} 1935 1936// ---------------------------------------------------------------------------- 1937// EGL 1.1 1938// ---------------------------------------------------------------------------- 1939 1940EGLBoolean eglSurfaceAttrib( 1941 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1942{ 1943 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1944 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1945 // TODO: eglSurfaceAttrib() 1946 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1947} 1948 1949EGLBoolean eglBindTexImage( 1950 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1951{ 1952 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1953 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1954 // TODO: eglBindTexImage() 1955 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1956} 1957 1958EGLBoolean eglReleaseTexImage( 1959 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1960{ 1961 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1962 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1963 // TODO: eglReleaseTexImage() 1964 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1965} 1966 1967EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1968{ 1969 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1970 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1971 // TODO: eglSwapInterval() 1972 return EGL_TRUE; 1973} 1974 1975// ---------------------------------------------------------------------------- 1976// EGL 1.2 1977// ---------------------------------------------------------------------------- 1978 1979EGLBoolean eglBindAPI(EGLenum api) 1980{ 1981 if (api != EGL_OPENGL_ES_API) 1982 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1983 return EGL_TRUE; 1984} 1985 1986EGLenum eglQueryAPI(void) 1987{ 1988 return EGL_OPENGL_ES_API; 1989} 1990 1991EGLBoolean eglWaitClient(void) 1992{ 1993 glFinish(); 1994 return EGL_TRUE; 1995} 1996 1997EGLBoolean eglReleaseThread(void) 1998{ 1999 // TODO: eglReleaseThread() 2000 return EGL_TRUE; 2001} 2002 2003EGLSurface eglCreatePbufferFromClientBuffer( 2004 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 2005 EGLConfig config, const EGLint *attrib_list) 2006{ 2007 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2008 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 2009 // TODO: eglCreatePbufferFromClientBuffer() 2010 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 2011} 2012 2013// ---------------------------------------------------------------------------- 2014// EGL_EGLEXT_VERSION 3 2015// ---------------------------------------------------------------------------- 2016 2017void (*eglGetProcAddress (const char *procname))() 2018{ 2019 extention_map_t const * const map = gExtentionMap; 2020 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 2021 if (!strcmp(procname, map[i].name)) { 2022 return map[i].address; 2023 } 2024 } 2025 return NULL; 2026} 2027 2028EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 2029 const EGLint *attrib_list) 2030{ 2031 EGLBoolean result = EGL_FALSE; 2032 return result; 2033} 2034 2035EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 2036{ 2037 EGLBoolean result = EGL_FALSE; 2038 return result; 2039} 2040 2041EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 2042 EGLClientBuffer buffer, const EGLint *attrib_list) 2043{ 2044 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2045 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 2046 } 2047 if (ctx != EGL_NO_CONTEXT) { 2048 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2049 } 2050 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2051 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2052 } 2053 2054 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 2055 2056 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2057 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2058 2059 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2060 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2061 2062 switch (native_buffer->format) { 2063 case HAL_PIXEL_FORMAT_RGBA_8888: 2064 case HAL_PIXEL_FORMAT_RGBX_8888: 2065 case HAL_PIXEL_FORMAT_RGB_888: 2066 case HAL_PIXEL_FORMAT_RGB_565: 2067 case HAL_PIXEL_FORMAT_BGRA_8888: 2068 case HAL_PIXEL_FORMAT_RGBA_5551: 2069 case HAL_PIXEL_FORMAT_RGBA_4444: 2070 break; 2071 default: 2072 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2073 } 2074 2075 native_buffer->common.incRef(&native_buffer->common); 2076 return (EGLImageKHR)native_buffer; 2077} 2078 2079EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2080{ 2081 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2082 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2083 } 2084 2085 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 2086 2087 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2088 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2089 2090 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2091 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2092 2093 native_buffer->common.decRef(&native_buffer->common); 2094 2095 return EGL_TRUE; 2096} 2097 2098// ---------------------------------------------------------------------------- 2099// ANDROID extensions 2100// ---------------------------------------------------------------------------- 2101 2102EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2103 EGLint left, EGLint top, EGLint width, EGLint height) 2104{ 2105 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2106 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2107 2108 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2109 if (!d->isValid()) 2110 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2111 if (d->dpy != dpy) 2112 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2113 2114 // post the surface 2115 d->setSwapRectangle(left, top, width, height); 2116 2117 return EGL_TRUE; 2118} 2119