egl.cpp revision 695b66f082033d618ce19ee289d858130bd5420b
1/* 2** 3** Copyright 2007 The Android Open Source Project 4** 5** Licensed under the Apache License Version 2.0(the "License"); 6** you may not use this file except in compliance with the License. 7** You may obtain a copy of the License at 8** 9** http://www.apache.org/licenses/LICENSE-2.0 10** 11** Unless required by applicable law or agreed to in writing software 12** distributed under the License is distributed on an "AS IS" BASIS 13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND either express or implied. 14** See the License for the specific language governing permissions and 15** limitations under the License. 16*/ 17 18#include <assert.h> 19#include <errno.h> 20#include <stdlib.h> 21#include <stdio.h> 22#include <string.h> 23#include <unistd.h> 24#include <fcntl.h> 25#include <sys/ioctl.h> 26#include <sys/types.h> 27#include <sys/mman.h> 28 29#include <cutils/log.h> 30#include <cutils/atomic.h> 31 32#include <utils/threads.h> 33 34#include <EGL/egl.h> 35#include <EGL/eglext.h> 36#include <GLES/gl.h> 37#include <GLES/glext.h> 38 39#include <pixelflinger/format.h> 40#include <pixelflinger/pixelflinger.h> 41 42#include <private/ui/android_natives_priv.h> 43 44#include <hardware/copybit.h> 45 46#include "context.h" 47#include "state.h" 48#include "texture.h" 49#include "matrix.h" 50 51#undef NELEM 52#define NELEM(x) (sizeof(x)/sizeof(*(x))) 53 54// ---------------------------------------------------------------------------- 55namespace android { 56// ---------------------------------------------------------------------------- 57 58const unsigned int NUM_DISPLAYS = 1; 59 60static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER; 61static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER; 62static pthread_key_t gEGLErrorKey = -1; 63#ifndef HAVE_ANDROID_OS 64namespace gl { 65pthread_key_t gGLKey = -1; 66}; // namespace gl 67#endif 68 69template<typename T> 70static T setError(GLint error, T returnValue) { 71 if (ggl_unlikely(gEGLErrorKey == -1)) { 72 pthread_mutex_lock(&gErrorKeyMutex); 73 if (gEGLErrorKey == -1) 74 pthread_key_create(&gEGLErrorKey, NULL); 75 pthread_mutex_unlock(&gErrorKeyMutex); 76 } 77 pthread_setspecific(gEGLErrorKey, (void*)error); 78 return returnValue; 79} 80 81static GLint getError() { 82 if (ggl_unlikely(gEGLErrorKey == -1)) 83 return EGL_SUCCESS; 84 GLint error = (GLint)pthread_getspecific(gEGLErrorKey); 85 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS); 86 return error; 87} 88 89// ---------------------------------------------------------------------------- 90 91struct egl_display_t 92{ 93 egl_display_t() : type(0), initialized(0) { } 94 95 static egl_display_t& get_display(EGLDisplay dpy); 96 97 static EGLBoolean is_valid(EGLDisplay dpy) { 98 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE; 99 } 100 101 NativeDisplayType type; 102 volatile int32_t initialized; 103}; 104 105static egl_display_t gDisplays[NUM_DISPLAYS]; 106 107egl_display_t& egl_display_t::get_display(EGLDisplay dpy) { 108 return gDisplays[uintptr_t(dpy)-1U]; 109} 110 111struct egl_context_t { 112 enum { 113 IS_CURRENT = 0x00010000, 114 NEVER_CURRENT = 0x00020000 115 }; 116 uint32_t flags; 117 EGLDisplay dpy; 118 EGLConfig config; 119 EGLSurface read; 120 EGLSurface draw; 121 122 static inline egl_context_t* context(EGLContext ctx) { 123 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx); 124 return static_cast<egl_context_t*>(gl->rasterizer.base); 125 } 126}; 127 128// ---------------------------------------------------------------------------- 129 130struct egl_surface_t 131{ 132 enum { 133 PAGE_FLIP = 0x00000001, 134 MAGIC = 0x31415265 135 }; 136 137 uint32_t magic; 138 EGLDisplay dpy; 139 EGLConfig config; 140 EGLContext ctx; 141 142 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat); 143 virtual ~egl_surface_t(); 144 bool isValid() const; 145 virtual bool initCheck() const = 0; 146 147 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 148 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 149 virtual EGLBoolean connect() { return EGL_TRUE; } 150 virtual void disconnect() {} 151 virtual EGLint getWidth() const = 0; 152 virtual EGLint getHeight() const = 0; 153 154 virtual EGLint getHorizontalResolution() const; 155 virtual EGLint getVerticalResolution() const; 156 virtual EGLint getRefreshRate() const; 157 virtual EGLint getSwapBehavior() const; 158 virtual EGLBoolean swapBuffers(); 159 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 160protected: 161 GGLSurface depth; 162}; 163 164egl_surface_t::egl_surface_t(EGLDisplay dpy, 165 EGLConfig config, 166 int32_t depthFormat) 167 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 168{ 169 depth.version = sizeof(GGLSurface); 170 depth.data = 0; 171 depth.format = depthFormat; 172} 173egl_surface_t::~egl_surface_t() 174{ 175 magic = 0; 176 free(depth.data); 177} 178bool egl_surface_t::isValid() const { 179 LOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this); 180 return magic == MAGIC; 181} 182 183EGLBoolean egl_surface_t::swapBuffers() { 184 return EGL_FALSE; 185} 186EGLint egl_surface_t::getHorizontalResolution() const { 187 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 188} 189EGLint egl_surface_t::getVerticalResolution() const { 190 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 191} 192EGLint egl_surface_t::getRefreshRate() const { 193 return (60 * EGL_DISPLAY_SCALING); 194} 195EGLint egl_surface_t::getSwapBehavior() const { 196 return EGL_BUFFER_PRESERVED; 197} 198EGLBoolean egl_surface_t::setSwapRectangle( 199 EGLint l, EGLint t, EGLint w, EGLint h) 200{ 201 return EGL_FALSE; 202} 203 204// ---------------------------------------------------------------------------- 205 206struct egl_window_surface_v2_t : public egl_surface_t 207{ 208 egl_window_surface_v2_t( 209 EGLDisplay dpy, EGLConfig config, 210 int32_t depthFormat, 211 ANativeWindow* window); 212 213 ~egl_window_surface_v2_t(); 214 215 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails 216 virtual EGLBoolean swapBuffers(); 217 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 218 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 219 virtual EGLBoolean connect(); 220 virtual void disconnect(); 221 virtual EGLint getWidth() const { return width; } 222 virtual EGLint getHeight() const { return height; } 223 virtual EGLint getHorizontalResolution() const; 224 virtual EGLint getVerticalResolution() const; 225 virtual EGLint getRefreshRate() const; 226 virtual EGLint getSwapBehavior() const; 227 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 228 229private: 230 status_t lock(android_native_buffer_t* buf, int usage, void** vaddr); 231 status_t unlock(android_native_buffer_t* buf); 232 ANativeWindow* nativeWindow; 233 android_native_buffer_t* buffer; 234 android_native_buffer_t* previousBuffer; 235 gralloc_module_t const* module; 236 copybit_device_t* blitengine; 237 int width; 238 int height; 239 void* bits; 240 GGLFormat const* pixelFormatTable; 241 242 struct Rect { 243 inline Rect() { }; 244 inline Rect(int32_t w, int32_t h) 245 : left(0), top(0), right(w), bottom(h) { } 246 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 247 : left(l), top(t), right(r), bottom(b) { } 248 Rect& andSelf(const Rect& r) { 249 left = max(left, r.left); 250 top = max(top, r.top); 251 right = min(right, r.right); 252 bottom = min(bottom, r.bottom); 253 return *this; 254 } 255 bool isEmpty() const { 256 return (left>=right || top>=bottom); 257 } 258 void dump(char const* what) { 259 LOGD("%s { %5d, %5d, w=%5d, h=%5d }", 260 what, left, top, right-left, bottom-top); 261 } 262 263 int32_t left; 264 int32_t top; 265 int32_t right; 266 int32_t bottom; 267 }; 268 269 struct Region { 270 inline Region() : count(0) { } 271 typedef Rect const* const_iterator; 272 const_iterator begin() const { return storage; } 273 const_iterator end() const { return storage+count; } 274 static Region subtract(const Rect& lhs, const Rect& rhs) { 275 Region reg; 276 Rect* storage = reg.storage; 277 if (!lhs.isEmpty()) { 278 if (lhs.top < rhs.top) { // top rect 279 storage->left = lhs.left; 280 storage->top = lhs.top; 281 storage->right = lhs.right; 282 storage->bottom = rhs.top; 283 storage++; 284 } 285 const int32_t top = max(lhs.top, rhs.top); 286 const int32_t bot = min(lhs.bottom, rhs.bottom); 287 if (top < bot) { 288 if (lhs.left < rhs.left) { // left-side rect 289 storage->left = lhs.left; 290 storage->top = top; 291 storage->right = rhs.left; 292 storage->bottom = bot; 293 storage++; 294 } 295 if (lhs.right > rhs.right) { // right-side rect 296 storage->left = rhs.right; 297 storage->top = top; 298 storage->right = lhs.right; 299 storage->bottom = bot; 300 storage++; 301 } 302 } 303 if (lhs.bottom > rhs.bottom) { // bottom rect 304 storage->left = lhs.left; 305 storage->top = rhs.bottom; 306 storage->right = lhs.right; 307 storage->bottom = lhs.bottom; 308 storage++; 309 } 310 reg.count = storage - reg.storage; 311 } 312 return reg; 313 } 314 bool isEmpty() const { 315 return count<=0; 316 } 317 private: 318 Rect storage[4]; 319 ssize_t count; 320 }; 321 322 struct region_iterator : public copybit_region_t { 323 region_iterator(const Region& region) 324 : b(region.begin()), e(region.end()) { 325 this->next = iterate; 326 } 327 private: 328 static int iterate(copybit_region_t const * self, copybit_rect_t* rect) { 329 region_iterator const* me = static_cast<region_iterator const*>(self); 330 if (me->b != me->e) { 331 *reinterpret_cast<Rect*>(rect) = *me->b++; 332 return 1; 333 } 334 return 0; 335 } 336 mutable Region::const_iterator b; 337 Region::const_iterator const e; 338 }; 339 340 void copyBlt( 341 android_native_buffer_t* dst, void* dst_vaddr, 342 android_native_buffer_t* src, void const* src_vaddr, 343 const Region& clip); 344 345 Rect dirtyRegion; 346 Rect oldDirtyRegion; 347}; 348 349egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 350 EGLConfig config, 351 int32_t depthFormat, 352 ANativeWindow* window) 353 : egl_surface_t(dpy, config, depthFormat), 354 nativeWindow(window), buffer(0), previousBuffer(0), module(0), 355 blitengine(0), bits(NULL) 356{ 357 hw_module_t const* pModule; 358 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 359 module = reinterpret_cast<gralloc_module_t const*>(pModule); 360 361 if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &pModule) == 0) { 362 copybit_open(pModule, &blitengine); 363 } 364 365 pixelFormatTable = gglGetPixelFormatTable(); 366 367 // keep a reference on the window 368 nativeWindow->common.incRef(&nativeWindow->common); 369 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width); 370 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height); 371} 372 373egl_window_surface_v2_t::~egl_window_surface_v2_t() { 374 if (buffer) { 375 buffer->common.decRef(&buffer->common); 376 } 377 if (previousBuffer) { 378 previousBuffer->common.decRef(&previousBuffer->common); 379 } 380 nativeWindow->common.decRef(&nativeWindow->common); 381 if (blitengine) { 382 copybit_close(blitengine); 383 } 384} 385 386EGLBoolean egl_window_surface_v2_t::connect() 387{ 388 // we're intending to do software rendering 389 native_window_set_usage(nativeWindow, 390 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); 391 392 // dequeue a buffer 393 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) { 394 return setError(EGL_BAD_ALLOC, EGL_FALSE); 395 } 396 397 // allocate a corresponding depth-buffer 398 width = buffer->width; 399 height = buffer->height; 400 if (depth.format) { 401 depth.width = width; 402 depth.height = height; 403 depth.stride = depth.width; // use the width here 404 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 405 if (depth.data == 0) { 406 return setError(EGL_BAD_ALLOC, EGL_FALSE); 407 } 408 } 409 410 // keep a reference on the buffer 411 buffer->common.incRef(&buffer->common); 412 413 // Lock the buffer 414 nativeWindow->lockBuffer(nativeWindow, buffer); 415 // pin the buffer down 416 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 417 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 418 LOGE("connect() failed to lock buffer %p (%ux%u)", 419 buffer, buffer->width, buffer->height); 420 return setError(EGL_BAD_ACCESS, EGL_FALSE); 421 // FIXME: we should make sure we're not accessing the buffer anymore 422 } 423 return EGL_TRUE; 424} 425 426void egl_window_surface_v2_t::disconnect() 427{ 428 if (buffer && bits) { 429 bits = NULL; 430 unlock(buffer); 431 } 432 // enqueue the last frame 433 nativeWindow->queueBuffer(nativeWindow, buffer); 434 if (buffer) { 435 buffer->common.decRef(&buffer->common); 436 buffer = 0; 437 } 438 if (previousBuffer) { 439 previousBuffer->common.decRef(&previousBuffer->common); 440 previousBuffer = 0; 441 } 442} 443 444status_t egl_window_surface_v2_t::lock( 445 android_native_buffer_t* buf, int usage, void** vaddr) 446{ 447 int err; 448 449 err = module->lock(module, buf->handle, 450 usage, 0, 0, buf->width, buf->height, vaddr); 451 452 return err; 453} 454 455status_t egl_window_surface_v2_t::unlock(android_native_buffer_t* buf) 456{ 457 if (!buf) return BAD_VALUE; 458 int err = NO_ERROR; 459 460 err = module->unlock(module, buf->handle); 461 462 return err; 463} 464 465void egl_window_surface_v2_t::copyBlt( 466 android_native_buffer_t* dst, void* dst_vaddr, 467 android_native_buffer_t* src, void const* src_vaddr, 468 const Region& clip) 469{ 470 // FIXME: use copybit if possible 471 // NOTE: dst and src must be the same format 472 473 status_t err = NO_ERROR; 474 copybit_device_t* const copybit = blitengine; 475 if (copybit) { 476 copybit_image_t simg; 477 simg.w = src->stride; 478 simg.h = src->height; 479 simg.format = src->format; 480 simg.handle = const_cast<native_handle_t*>(src->handle); 481 482 copybit_image_t dimg; 483 dimg.w = dst->stride; 484 dimg.h = dst->height; 485 dimg.format = dst->format; 486 dimg.handle = const_cast<native_handle_t*>(dst->handle); 487 488 copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0); 489 copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255); 490 copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_DISABLE); 491 region_iterator it(clip); 492 err = copybit->blit(copybit, &dimg, &simg, &it); 493 if (err != NO_ERROR) { 494 LOGE("copybit failed (%s)", strerror(err)); 495 } 496 } 497 498 if (!copybit || err) { 499 Region::const_iterator cur = clip.begin(); 500 Region::const_iterator end = clip.end(); 501 502 const size_t bpp = pixelFormatTable[src->format].size; 503 const size_t dbpr = dst->stride * bpp; 504 const size_t sbpr = src->stride * bpp; 505 506 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 507 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 508 509 while (cur != end) { 510 const Rect& r(*cur++); 511 ssize_t w = r.right - r.left; 512 ssize_t h = r.bottom - r.top; 513 if (w <= 0 || h<=0) continue; 514 size_t size = w * bpp; 515 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 516 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 517 if (dbpr==sbpr && size==sbpr) { 518 size *= h; 519 h = 1; 520 } 521 do { 522 memcpy(d, s, size); 523 d += dbpr; 524 s += sbpr; 525 } while (--h > 0); 526 } 527 } 528} 529 530EGLBoolean egl_window_surface_v2_t::swapBuffers() 531{ 532 if (!buffer) { 533 return setError(EGL_BAD_ACCESS, EGL_FALSE); 534 } 535 536 /* 537 * Handle eglSetSwapRectangleANDROID() 538 * We copyback from the front buffer 539 */ 540 if (!dirtyRegion.isEmpty()) { 541 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 542 if (previousBuffer) { 543 // This was const Region copyBack, but that causes an 544 // internal compile error on simulator builds 545 /*const*/ Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 546 if (!copyBack.isEmpty()) { 547 void* prevBits; 548 if (lock(previousBuffer, 549 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 550 // copy from previousBuffer to buffer 551 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 552 unlock(previousBuffer); 553 } 554 } 555 } 556 oldDirtyRegion = dirtyRegion; 557 } 558 559 if (previousBuffer) { 560 previousBuffer->common.decRef(&previousBuffer->common); 561 previousBuffer = 0; 562 } 563 564 unlock(buffer); 565 previousBuffer = buffer; 566 nativeWindow->queueBuffer(nativeWindow, buffer); 567 buffer = 0; 568 569 // dequeue a new buffer 570 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) { 571 572 // TODO: lockBuffer should rather be executed when the very first 573 // direct rendering occurs. 574 nativeWindow->lockBuffer(nativeWindow, buffer); 575 576 // reallocate the depth-buffer if needed 577 if ((width != buffer->width) || (height != buffer->height)) { 578 // TODO: we probably should reset the swap rect here 579 // if the window size has changed 580 width = buffer->width; 581 height = buffer->height; 582 if (depth.data) { 583 free(depth.data); 584 depth.width = width; 585 depth.height = height; 586 depth.stride = buffer->stride; 587 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 588 if (depth.data == 0) { 589 setError(EGL_BAD_ALLOC, EGL_FALSE); 590 return EGL_FALSE; 591 } 592 } 593 } 594 595 // keep a reference on the buffer 596 buffer->common.incRef(&buffer->common); 597 598 // finally pin the buffer down 599 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 600 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 601 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 602 buffer, buffer->width, buffer->height); 603 return setError(EGL_BAD_ACCESS, EGL_FALSE); 604 // FIXME: we should make sure we're not accessing the buffer anymore 605 } 606 } else { 607 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE); 608 } 609 610 return EGL_TRUE; 611} 612 613EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 614 EGLint l, EGLint t, EGLint w, EGLint h) 615{ 616 dirtyRegion = Rect(l, t, l+w, t+h); 617 return EGL_TRUE; 618} 619 620EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 621{ 622 GGLSurface buffer; 623 buffer.version = sizeof(GGLSurface); 624 buffer.width = this->buffer->width; 625 buffer.height = this->buffer->height; 626 buffer.stride = this->buffer->stride; 627 buffer.data = (GGLubyte*)bits; 628 buffer.format = this->buffer->format; 629 gl->rasterizer.procs.colorBuffer(gl, &buffer); 630 if (depth.data != gl->rasterizer.state.buffers.depth.data) 631 gl->rasterizer.procs.depthBuffer(gl, &depth); 632 633 return EGL_TRUE; 634} 635EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 636{ 637 GGLSurface buffer; 638 buffer.version = sizeof(GGLSurface); 639 buffer.width = this->buffer->width; 640 buffer.height = this->buffer->height; 641 buffer.stride = this->buffer->stride; 642 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 643 buffer.format = this->buffer->format; 644 gl->rasterizer.procs.readBuffer(gl, &buffer); 645 return EGL_TRUE; 646} 647EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 648 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 649} 650EGLint egl_window_surface_v2_t::getVerticalResolution() const { 651 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 652} 653EGLint egl_window_surface_v2_t::getRefreshRate() const { 654 return (60 * EGL_DISPLAY_SCALING); // FIXME 655} 656EGLint egl_window_surface_v2_t::getSwapBehavior() const 657{ 658 /* 659 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 660 * the content of the swapped buffer. 661 * 662 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 663 * 664 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 665 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 666 * is, everything outside of this area is preserved. 667 * 668 * This implementation of EGL assumes the later case. 669 * 670 */ 671 672 return EGL_BUFFER_DESTROYED; 673} 674 675// ---------------------------------------------------------------------------- 676 677struct egl_pixmap_surface_t : public egl_surface_t 678{ 679 egl_pixmap_surface_t( 680 EGLDisplay dpy, EGLConfig config, 681 int32_t depthFormat, 682 egl_native_pixmap_t const * pixmap); 683 684 virtual ~egl_pixmap_surface_t() { } 685 686 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 687 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 688 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 689 virtual EGLint getWidth() const { return nativePixmap.width; } 690 virtual EGLint getHeight() const { return nativePixmap.height; } 691private: 692 egl_native_pixmap_t nativePixmap; 693}; 694 695egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 696 EGLConfig config, 697 int32_t depthFormat, 698 egl_native_pixmap_t const * pixmap) 699 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 700{ 701 if (depthFormat) { 702 depth.width = pixmap->width; 703 depth.height = pixmap->height; 704 depth.stride = depth.width; // use the width here 705 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 706 if (depth.data == 0) { 707 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 708 } 709 } 710} 711EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 712{ 713 GGLSurface buffer; 714 buffer.version = sizeof(GGLSurface); 715 buffer.width = nativePixmap.width; 716 buffer.height = nativePixmap.height; 717 buffer.stride = nativePixmap.stride; 718 buffer.data = nativePixmap.data; 719 buffer.format = nativePixmap.format; 720 721 gl->rasterizer.procs.colorBuffer(gl, &buffer); 722 if (depth.data != gl->rasterizer.state.buffers.depth.data) 723 gl->rasterizer.procs.depthBuffer(gl, &depth); 724 return EGL_TRUE; 725} 726EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 727{ 728 GGLSurface buffer; 729 buffer.version = sizeof(GGLSurface); 730 buffer.width = nativePixmap.width; 731 buffer.height = nativePixmap.height; 732 buffer.stride = nativePixmap.stride; 733 buffer.data = nativePixmap.data; 734 buffer.format = nativePixmap.format; 735 gl->rasterizer.procs.readBuffer(gl, &buffer); 736 return EGL_TRUE; 737} 738 739// ---------------------------------------------------------------------------- 740 741struct egl_pbuffer_surface_t : public egl_surface_t 742{ 743 egl_pbuffer_surface_t( 744 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 745 int32_t w, int32_t h, int32_t f); 746 747 virtual ~egl_pbuffer_surface_t(); 748 749 virtual bool initCheck() const { return pbuffer.data != 0; } 750 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 751 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 752 virtual EGLint getWidth() const { return pbuffer.width; } 753 virtual EGLint getHeight() const { return pbuffer.height; } 754private: 755 GGLSurface pbuffer; 756}; 757 758egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 759 EGLConfig config, int32_t depthFormat, 760 int32_t w, int32_t h, int32_t f) 761 : egl_surface_t(dpy, config, depthFormat) 762{ 763 size_t size = w*h; 764 switch (f) { 765 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 766 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 767 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 768 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break; 769 default: 770 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 771 pbuffer.data = 0; 772 break; 773 } 774 pbuffer.version = sizeof(GGLSurface); 775 pbuffer.width = w; 776 pbuffer.height = h; 777 pbuffer.stride = w; 778 pbuffer.data = (GGLubyte*)malloc(size); 779 pbuffer.format = f; 780 781 if (depthFormat) { 782 depth.width = pbuffer.width; 783 depth.height = pbuffer.height; 784 depth.stride = depth.width; // use the width here 785 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 786 if (depth.data == 0) { 787 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 788 return; 789 } 790 } 791} 792egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 793 free(pbuffer.data); 794} 795EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 796{ 797 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 798 if (depth.data != gl->rasterizer.state.buffers.depth.data) 799 gl->rasterizer.procs.depthBuffer(gl, &depth); 800 return EGL_TRUE; 801} 802EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 803{ 804 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 805 return EGL_TRUE; 806} 807 808// ---------------------------------------------------------------------------- 809 810struct config_pair_t { 811 GLint key; 812 GLint value; 813}; 814 815struct configs_t { 816 const config_pair_t* array; 817 int size; 818}; 819 820struct config_management_t { 821 GLint key; 822 bool (*match)(GLint reqValue, GLint confValue); 823 static bool atLeast(GLint reqValue, GLint confValue) { 824 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 825 } 826 static bool exact(GLint reqValue, GLint confValue) { 827 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 828 } 829 static bool mask(GLint reqValue, GLint confValue) { 830 return (confValue & reqValue) == reqValue; 831 } 832 static bool ignore(GLint reqValue, GLint confValue) { 833 return true; 834 } 835}; 836 837// ---------------------------------------------------------------------------- 838 839#define VERSION_MAJOR 1 840#define VERSION_MINOR 2 841static char const * const gVendorString = "Google Inc."; 842static char const * const gVersionString = "1.2 Android Driver 1.2.0"; 843static char const * const gClientApiString = "OpenGL ES"; 844static char const * const gExtensionsString = 845 "EGL_KHR_image_base " 846 // "KHR_image_pixmap " 847 "EGL_ANDROID_image_native_buffer " 848 "EGL_ANDROID_swap_rectangle " 849 ; 850 851// ---------------------------------------------------------------------------- 852 853struct extention_map_t { 854 const char * const name; 855 __eglMustCastToProperFunctionPointerType address; 856}; 857 858static const extention_map_t gExtentionMap[] = { 859 { "glDrawTexsOES", 860 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 861 { "glDrawTexiOES", 862 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 863 { "glDrawTexfOES", 864 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 865 { "glDrawTexxOES", 866 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 867 { "glDrawTexsvOES", 868 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 869 { "glDrawTexivOES", 870 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 871 { "glDrawTexfvOES", 872 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 873 { "glDrawTexxvOES", 874 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 875 { "glQueryMatrixxOES", 876 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 877 { "glEGLImageTargetTexture2DOES", 878 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 879 { "glEGLImageTargetRenderbufferStorageOES", 880 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 881 { "glClipPlanef", 882 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 883 { "glClipPlanex", 884 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 885 { "glBindBuffer", 886 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 887 { "glBufferData", 888 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 889 { "glBufferSubData", 890 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 891 { "glDeleteBuffers", 892 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 893 { "glGenBuffers", 894 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 895 { "eglCreateImageKHR", 896 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 897 { "eglDestroyImageKHR", 898 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 899 { "eglSetSwapRectangleANDROID", 900 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 901}; 902 903/* 904 * In the lists below, attributes names MUST be sorted. 905 * Additionally, all configs must be sorted according to 906 * the EGL specification. 907 */ 908 909static config_pair_t const config_base_attribute_list[] = { 910 { EGL_STENCIL_SIZE, 0 }, 911 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 912 { EGL_LEVEL, 0 }, 913 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 914 { EGL_MAX_PBUFFER_PIXELS, 915 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 916 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 917 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 918 { EGL_NATIVE_VISUAL_ID, 0 }, 919 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 920 { EGL_SAMPLES, 0 }, 921 { EGL_SAMPLE_BUFFERS, 0 }, 922 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 923 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 924 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 925 { EGL_TRANSPARENT_RED_VALUE, 0 }, 926 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 927 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 928 { EGL_MIN_SWAP_INTERVAL, 1 }, 929 { EGL_MAX_SWAP_INTERVAL, 1 }, 930 { EGL_LUMINANCE_SIZE, 0 }, 931 { EGL_ALPHA_MASK_SIZE, 0 }, 932 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER }, 933 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 934 { EGL_CONFORMANT, 0 } 935}; 936 937// These configs can override the base attribute list 938// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 939 940// 565 configs 941static config_pair_t const config_0_attribute_list[] = { 942 { EGL_BUFFER_SIZE, 16 }, 943 { EGL_ALPHA_SIZE, 0 }, 944 { EGL_BLUE_SIZE, 5 }, 945 { EGL_GREEN_SIZE, 6 }, 946 { EGL_RED_SIZE, 5 }, 947 { EGL_DEPTH_SIZE, 0 }, 948 { EGL_CONFIG_ID, 0 }, 949 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 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_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 962 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 963}; 964 965// RGB 888 configs 966static config_pair_t const config_2_attribute_list[] = { 967 { EGL_BUFFER_SIZE, 32 }, 968 { EGL_ALPHA_SIZE, 0 }, 969 { EGL_BLUE_SIZE, 8 }, 970 { EGL_GREEN_SIZE, 8 }, 971 { EGL_RED_SIZE, 8 }, 972 { EGL_DEPTH_SIZE, 0 }, 973 { EGL_CONFIG_ID, 6 }, 974 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 975 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 976}; 977 978static config_pair_t const config_3_attribute_list[] = { 979 { EGL_BUFFER_SIZE, 32 }, 980 { EGL_ALPHA_SIZE, 0 }, 981 { EGL_BLUE_SIZE, 8 }, 982 { EGL_GREEN_SIZE, 8 }, 983 { EGL_RED_SIZE, 8 }, 984 { EGL_DEPTH_SIZE, 16 }, 985 { EGL_CONFIG_ID, 7 }, 986 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 987 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 988}; 989 990// 8888 configs 991static config_pair_t const config_4_attribute_list[] = { 992 { EGL_BUFFER_SIZE, 32 }, 993 { EGL_ALPHA_SIZE, 8 }, 994 { EGL_BLUE_SIZE, 8 }, 995 { EGL_GREEN_SIZE, 8 }, 996 { EGL_RED_SIZE, 8 }, 997 { EGL_DEPTH_SIZE, 0 }, 998 { EGL_CONFIG_ID, 2 }, 999 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 1000 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1001}; 1002 1003static config_pair_t const config_5_attribute_list[] = { 1004 { EGL_BUFFER_SIZE, 32 }, 1005 { EGL_ALPHA_SIZE, 8 }, 1006 { EGL_BLUE_SIZE, 8 }, 1007 { EGL_GREEN_SIZE, 8 }, 1008 { EGL_RED_SIZE, 8 }, 1009 { EGL_DEPTH_SIZE, 16 }, 1010 { EGL_CONFIG_ID, 3 }, 1011 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 1012 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1013}; 1014 1015// A8 configs 1016static config_pair_t const config_6_attribute_list[] = { 1017 { EGL_BUFFER_SIZE, 8 }, 1018 { EGL_ALPHA_SIZE, 8 }, 1019 { EGL_BLUE_SIZE, 0 }, 1020 { EGL_GREEN_SIZE, 0 }, 1021 { EGL_RED_SIZE, 0 }, 1022 { EGL_DEPTH_SIZE, 0 }, 1023 { EGL_CONFIG_ID, 4 }, 1024 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 1025 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1026}; 1027 1028static config_pair_t const config_7_attribute_list[] = { 1029 { EGL_BUFFER_SIZE, 8 }, 1030 { EGL_ALPHA_SIZE, 8 }, 1031 { EGL_BLUE_SIZE, 0 }, 1032 { EGL_GREEN_SIZE, 0 }, 1033 { EGL_RED_SIZE, 0 }, 1034 { EGL_DEPTH_SIZE, 16 }, 1035 { EGL_CONFIG_ID, 5 }, 1036 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 1037 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1038}; 1039 1040static configs_t const gConfigs[] = { 1041 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 1042 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 1043 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 1044 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 1045 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 1046 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 1047 { config_6_attribute_list, NELEM(config_6_attribute_list) }, 1048 { config_7_attribute_list, NELEM(config_7_attribute_list) }, 1049}; 1050 1051static config_management_t const gConfigManagement[] = { 1052 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 1053 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1054 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1055 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1056 { EGL_RED_SIZE, config_management_t::atLeast }, 1057 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1058 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1059 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1060 { EGL_CONFIG_ID, config_management_t::exact }, 1061 { EGL_LEVEL, config_management_t::exact }, 1062 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::ignore }, 1063 { EGL_MAX_PBUFFER_PIXELS, config_management_t::ignore }, 1064 { EGL_MAX_PBUFFER_WIDTH, config_management_t::ignore }, 1065 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1066 { EGL_NATIVE_VISUAL_ID, config_management_t::ignore }, 1067 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1068 { EGL_SAMPLES, config_management_t::exact }, 1069 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1070 { EGL_SURFACE_TYPE, config_management_t::mask }, 1071 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1072 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1073 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1074 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1075 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1076 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1077 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1078 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1079 { EGL_LUMINANCE_SIZE, config_management_t::atLeast }, 1080 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast }, 1081 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact }, 1082 { EGL_RENDERABLE_TYPE, config_management_t::mask }, 1083 { EGL_CONFORMANT, config_management_t::mask } 1084}; 1085 1086 1087static config_pair_t const config_defaults[] = { 1088 // attributes that are not specified are simply ignored, if a particular 1089 // one needs not be ignored, it must be specified here, eg: 1090 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1091}; 1092 1093// ---------------------------------------------------------------------------- 1094 1095static status_t getConfigFormatInfo(EGLint configID, 1096 int32_t& pixelFormat, int32_t& depthFormat) 1097{ 1098 switch(configID) { 1099 case 0: 1100 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1101 depthFormat = 0; 1102 break; 1103 case 1: 1104 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1105 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1106 break; 1107 case 2: 1108 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1109 depthFormat = 0; 1110 break; 1111 case 3: 1112 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1113 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1114 break; 1115 case 4: 1116 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1117 depthFormat = 0; 1118 break; 1119 case 5: 1120 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1121 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1122 break; 1123 case 6: 1124 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1125 depthFormat = 0; 1126 break; 1127 case 7: 1128 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1129 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1130 break; 1131 default: 1132 return NAME_NOT_FOUND; 1133 } 1134 return NO_ERROR; 1135} 1136 1137// ---------------------------------------------------------------------------- 1138 1139template<typename T> 1140static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1141{ 1142 while (first <= last) { 1143 int mid = (first + last) / 2; 1144 if (key > sortedArray[mid].key) { 1145 first = mid + 1; 1146 } else if (key < sortedArray[mid].key) { 1147 last = mid - 1; 1148 } else { 1149 return mid; 1150 } 1151 } 1152 return -1; 1153} 1154 1155static int isAttributeMatching(int i, EGLint attr, EGLint val) 1156{ 1157 // look for the attribute in all of our configs 1158 config_pair_t const* configFound = gConfigs[i].array; 1159 int index = binarySearch<config_pair_t>( 1160 gConfigs[i].array, 1161 0, gConfigs[i].size-1, 1162 attr); 1163 if (index < 0) { 1164 configFound = config_base_attribute_list; 1165 index = binarySearch<config_pair_t>( 1166 config_base_attribute_list, 1167 0, NELEM(config_base_attribute_list)-1, 1168 attr); 1169 } 1170 if (index >= 0) { 1171 // attribute found, check if this config could match 1172 int cfgMgtIndex = binarySearch<config_management_t>( 1173 gConfigManagement, 1174 0, NELEM(gConfigManagement)-1, 1175 attr); 1176 if (cfgMgtIndex >= 0) { 1177 bool match = gConfigManagement[cfgMgtIndex].match( 1178 val, configFound[index].value); 1179 if (match) { 1180 // this config matches 1181 return 1; 1182 } 1183 } else { 1184 // attribute not found. this should NEVER happen. 1185 } 1186 } else { 1187 // error, this attribute doesn't exist 1188 } 1189 return 0; 1190} 1191 1192static int makeCurrent(ogles_context_t* gl) 1193{ 1194 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1195 if (gl) { 1196 egl_context_t* c = egl_context_t::context(gl); 1197 if (c->flags & egl_context_t::IS_CURRENT) { 1198 if (current != gl) { 1199 // it is an error to set a context current, if it's already 1200 // current to another thread 1201 return -1; 1202 } 1203 } else { 1204 if (current) { 1205 // mark the current context as not current, and flush 1206 glFlush(); 1207 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1208 } 1209 } 1210 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1211 // The context is not current, make it current! 1212 setGlThreadSpecific(gl); 1213 c->flags |= egl_context_t::IS_CURRENT; 1214 } 1215 } else { 1216 if (current) { 1217 // mark the current context as not current, and flush 1218 glFlush(); 1219 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1220 } 1221 // this thread has no context attached to it 1222 setGlThreadSpecific(0); 1223 } 1224 return 0; 1225} 1226 1227static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1228 EGLint attribute, EGLint *value) 1229{ 1230 size_t numConfigs = NELEM(gConfigs); 1231 int index = (int)config; 1232 if (uint32_t(index) >= numConfigs) 1233 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1234 1235 int attrIndex; 1236 attrIndex = binarySearch<config_pair_t>( 1237 gConfigs[index].array, 1238 0, gConfigs[index].size-1, 1239 attribute); 1240 if (attrIndex>=0) { 1241 *value = gConfigs[index].array[attrIndex].value; 1242 return EGL_TRUE; 1243 } 1244 1245 attrIndex = binarySearch<config_pair_t>( 1246 config_base_attribute_list, 1247 0, NELEM(config_base_attribute_list)-1, 1248 attribute); 1249 if (attrIndex>=0) { 1250 *value = config_base_attribute_list[attrIndex].value; 1251 return EGL_TRUE; 1252 } 1253 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1254} 1255 1256static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1257 NativeWindowType window, const EGLint *attrib_list) 1258{ 1259 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1260 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1261 if (window == 0) 1262 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1263 1264 EGLint surfaceType; 1265 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1266 return EGL_FALSE; 1267 1268 if (!(surfaceType & EGL_WINDOW_BIT)) 1269 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1270 1271 if (static_cast<ANativeWindow*>(window)->common.magic != 1272 ANDROID_NATIVE_WINDOW_MAGIC) { 1273 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1274 } 1275 1276 EGLint configID; 1277 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1278 return EGL_FALSE; 1279 1280 int32_t depthFormat; 1281 int32_t pixelFormat; 1282 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1283 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1284 } 1285 1286 // FIXME: we don't have access to the pixelFormat here just yet. 1287 // (it's possible that the surface is not fully initialized) 1288 // maybe this should be done after the page-flip 1289 //if (EGLint(info.format) != pixelFormat) 1290 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1291 1292 egl_surface_t* surface; 1293 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1294 static_cast<ANativeWindow*>(window)); 1295 1296 if (!surface->initCheck()) { 1297 // there was a problem in the ctor, the error 1298 // flag has been set. 1299 delete surface; 1300 surface = 0; 1301 } 1302 return surface; 1303} 1304 1305static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1306 NativePixmapType pixmap, const EGLint *attrib_list) 1307{ 1308 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1309 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1310 if (pixmap == 0) 1311 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1312 1313 EGLint surfaceType; 1314 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1315 return EGL_FALSE; 1316 1317 if (!(surfaceType & EGL_PIXMAP_BIT)) 1318 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1319 1320 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1321 sizeof(egl_native_pixmap_t)) { 1322 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1323 } 1324 1325 EGLint configID; 1326 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1327 return EGL_FALSE; 1328 1329 int32_t depthFormat; 1330 int32_t pixelFormat; 1331 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1332 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1333 } 1334 1335 if (pixmap->format != pixelFormat) 1336 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1337 1338 egl_surface_t* surface = 1339 new egl_pixmap_surface_t(dpy, config, depthFormat, 1340 static_cast<egl_native_pixmap_t*>(pixmap)); 1341 1342 if (!surface->initCheck()) { 1343 // there was a problem in the ctor, the error 1344 // flag has been set. 1345 delete surface; 1346 surface = 0; 1347 } 1348 return surface; 1349} 1350 1351static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1352 const EGLint *attrib_list) 1353{ 1354 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1355 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1356 1357 EGLint surfaceType; 1358 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1359 return EGL_FALSE; 1360 1361 if (!(surfaceType & EGL_PBUFFER_BIT)) 1362 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1363 1364 EGLint configID; 1365 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1366 return EGL_FALSE; 1367 1368 int32_t depthFormat; 1369 int32_t pixelFormat; 1370 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1371 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1372 } 1373 1374 int32_t w = 0; 1375 int32_t h = 0; 1376 while (attrib_list[0]) { 1377 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1378 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1379 attrib_list+=2; 1380 } 1381 1382 egl_surface_t* surface = 1383 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1384 1385 if (!surface->initCheck()) { 1386 // there was a problem in the ctor, the error 1387 // flag has been set. 1388 delete surface; 1389 surface = 0; 1390 } 1391 return surface; 1392} 1393 1394// ---------------------------------------------------------------------------- 1395}; // namespace android 1396// ---------------------------------------------------------------------------- 1397 1398using namespace android; 1399 1400// ---------------------------------------------------------------------------- 1401// Initialization 1402// ---------------------------------------------------------------------------- 1403 1404EGLDisplay eglGetDisplay(NativeDisplayType display) 1405{ 1406#ifndef HAVE_ANDROID_OS 1407 // this just needs to be done once 1408 if (gGLKey == -1) { 1409 pthread_mutex_lock(&gInitMutex); 1410 if (gGLKey == -1) 1411 pthread_key_create(&gGLKey, NULL); 1412 pthread_mutex_unlock(&gInitMutex); 1413 } 1414#endif 1415 if (display == EGL_DEFAULT_DISPLAY) { 1416 EGLDisplay dpy = (EGLDisplay)1; 1417 egl_display_t& d = egl_display_t::get_display(dpy); 1418 d.type = display; 1419 return dpy; 1420 } 1421 return EGL_NO_DISPLAY; 1422} 1423 1424EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1425{ 1426 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1427 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1428 1429 EGLBoolean res = EGL_TRUE; 1430 egl_display_t& d = egl_display_t::get_display(dpy); 1431 1432 if (android_atomic_inc(&d.initialized) == 0) { 1433 // initialize stuff here if needed 1434 //pthread_mutex_lock(&gInitMutex); 1435 //pthread_mutex_unlock(&gInitMutex); 1436 } 1437 1438 if (res == EGL_TRUE) { 1439 if (major != NULL) *major = VERSION_MAJOR; 1440 if (minor != NULL) *minor = VERSION_MINOR; 1441 } 1442 return res; 1443} 1444 1445EGLBoolean eglTerminate(EGLDisplay dpy) 1446{ 1447 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1448 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1449 1450 EGLBoolean res = EGL_TRUE; 1451 egl_display_t& d = egl_display_t::get_display(dpy); 1452 if (android_atomic_dec(&d.initialized) == 1) { 1453 // TODO: destroy all resources (surfaces, contexts, etc...) 1454 //pthread_mutex_lock(&gInitMutex); 1455 //pthread_mutex_unlock(&gInitMutex); 1456 } 1457 return res; 1458} 1459 1460// ---------------------------------------------------------------------------- 1461// configuration 1462// ---------------------------------------------------------------------------- 1463 1464EGLBoolean eglGetConfigs( EGLDisplay dpy, 1465 EGLConfig *configs, 1466 EGLint config_size, EGLint *num_config) 1467{ 1468 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1469 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1470 1471 GLint numConfigs = NELEM(gConfigs); 1472 if (!configs) { 1473 *num_config = numConfigs; 1474 return EGL_TRUE; 1475 } 1476 GLint i; 1477 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1478 *configs++ = (EGLConfig)i; 1479 } 1480 *num_config = i; 1481 return EGL_TRUE; 1482} 1483 1484EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1485 EGLConfig *configs, EGLint config_size, 1486 EGLint *num_config) 1487{ 1488 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1489 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1490 1491 if (ggl_unlikely(num_config==0)) { 1492 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1493 } 1494 1495 if (ggl_unlikely(attrib_list==0)) { 1496 /* 1497 * A NULL attrib_list should be treated as though it was an empty 1498 * one (terminated with EGL_NONE) as defined in 1499 * section 3.4.1 "Querying Configurations" in the EGL specification. 1500 */ 1501 static const EGLint dummy = EGL_NONE; 1502 attrib_list = &dummy; 1503 } 1504 1505 int numAttributes = 0; 1506 int numConfigs = NELEM(gConfigs); 1507 uint32_t possibleMatch = (1<<numConfigs)-1; 1508 while(possibleMatch && *attrib_list != EGL_NONE) { 1509 numAttributes++; 1510 EGLint attr = *attrib_list++; 1511 EGLint val = *attrib_list++; 1512 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1513 if (!(possibleMatch & (1<<i))) 1514 continue; 1515 if (isAttributeMatching(i, attr, val) == 0) { 1516 possibleMatch &= ~(1<<i); 1517 } 1518 } 1519 } 1520 1521 // now, handle the attributes which have a useful default value 1522 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) { 1523 // see if this attribute was specified, if not, apply its 1524 // default value 1525 if (binarySearch<config_pair_t>( 1526 (config_pair_t const*)attrib_list, 1527 0, numAttributes-1, 1528 config_defaults[j].key) < 0) 1529 { 1530 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1531 if (!(possibleMatch & (1<<i))) 1532 continue; 1533 if (isAttributeMatching(i, 1534 config_defaults[j].key, 1535 config_defaults[j].value) == 0) 1536 { 1537 possibleMatch &= ~(1<<i); 1538 } 1539 } 1540 } 1541 } 1542 1543 // return the configurations found 1544 int n=0; 1545 if (possibleMatch) { 1546 if (configs) { 1547 for (int i=0 ; config_size && i<numConfigs ; i++) { 1548 if (possibleMatch & (1<<i)) { 1549 *configs++ = (EGLConfig)i; 1550 config_size--; 1551 n++; 1552 } 1553 } 1554 } else { 1555 for (int i=0 ; i<numConfigs ; i++) { 1556 if (possibleMatch & (1<<i)) { 1557 n++; 1558 } 1559 } 1560 } 1561 } 1562 *num_config = n; 1563 return EGL_TRUE; 1564} 1565 1566EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1567 EGLint attribute, EGLint *value) 1568{ 1569 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1570 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1571 1572 return getConfigAttrib(dpy, config, attribute, value); 1573} 1574 1575// ---------------------------------------------------------------------------- 1576// surfaces 1577// ---------------------------------------------------------------------------- 1578 1579EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1580 NativeWindowType window, 1581 const EGLint *attrib_list) 1582{ 1583 return createWindowSurface(dpy, config, window, attrib_list); 1584} 1585 1586EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1587 NativePixmapType pixmap, 1588 const EGLint *attrib_list) 1589{ 1590 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1591} 1592 1593EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1594 const EGLint *attrib_list) 1595{ 1596 return createPbufferSurface(dpy, config, attrib_list); 1597} 1598 1599EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1600{ 1601 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1602 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1603 if (eglSurface != EGL_NO_SURFACE) { 1604 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1605 if (!surface->isValid()) 1606 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1607 if (surface->dpy != dpy) 1608 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1609 if (surface->ctx) { 1610 // FIXME: this surface is current check what the spec says 1611 surface->disconnect(); 1612 surface->ctx = 0; 1613 } 1614 delete surface; 1615 } 1616 return EGL_TRUE; 1617} 1618 1619EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1620 EGLint attribute, EGLint *value) 1621{ 1622 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1623 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1624 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1625 if (!surface->isValid()) 1626 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1627 if (surface->dpy != dpy) 1628 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1629 1630 EGLBoolean ret = EGL_TRUE; 1631 switch (attribute) { 1632 case EGL_CONFIG_ID: 1633 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1634 break; 1635 case EGL_WIDTH: 1636 *value = surface->getWidth(); 1637 break; 1638 case EGL_HEIGHT: 1639 *value = surface->getHeight(); 1640 break; 1641 case EGL_LARGEST_PBUFFER: 1642 // not modified for a window or pixmap surface 1643 break; 1644 case EGL_TEXTURE_FORMAT: 1645 *value = EGL_NO_TEXTURE; 1646 break; 1647 case EGL_TEXTURE_TARGET: 1648 *value = EGL_NO_TEXTURE; 1649 break; 1650 case EGL_MIPMAP_TEXTURE: 1651 *value = EGL_FALSE; 1652 break; 1653 case EGL_MIPMAP_LEVEL: 1654 *value = 0; 1655 break; 1656 case EGL_RENDER_BUFFER: 1657 // TODO: return the real RENDER_BUFFER here 1658 *value = EGL_BACK_BUFFER; 1659 break; 1660 case EGL_HORIZONTAL_RESOLUTION: 1661 // pixel/mm * EGL_DISPLAY_SCALING 1662 *value = surface->getHorizontalResolution(); 1663 break; 1664 case EGL_VERTICAL_RESOLUTION: 1665 // pixel/mm * EGL_DISPLAY_SCALING 1666 *value = surface->getVerticalResolution(); 1667 break; 1668 case EGL_PIXEL_ASPECT_RATIO: { 1669 // w/h * EGL_DISPLAY_SCALING 1670 int wr = surface->getHorizontalResolution(); 1671 int hr = surface->getVerticalResolution(); 1672 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1673 } break; 1674 case EGL_SWAP_BEHAVIOR: 1675 *value = surface->getSwapBehavior(); 1676 break; 1677 default: 1678 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1679 } 1680 return ret; 1681} 1682 1683EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1684 EGLContext share_list, const EGLint *attrib_list) 1685{ 1686 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1687 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1688 1689 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1690 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1691 1692 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1693 c->flags = egl_context_t::NEVER_CURRENT; 1694 c->dpy = dpy; 1695 c->config = config; 1696 c->read = 0; 1697 c->draw = 0; 1698 return (EGLContext)gl; 1699} 1700 1701EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1702{ 1703 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1704 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1705 egl_context_t* c = egl_context_t::context(ctx); 1706 if (c->flags & egl_context_t::IS_CURRENT) 1707 setGlThreadSpecific(0); 1708 ogles_uninit((ogles_context_t*)ctx); 1709 return EGL_TRUE; 1710} 1711 1712EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1713 EGLSurface read, EGLContext ctx) 1714{ 1715 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1716 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1717 if (draw) { 1718 egl_surface_t* s = (egl_surface_t*)draw; 1719 if (!s->isValid()) 1720 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1721 if (s->dpy != dpy) 1722 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1723 // TODO: check that draw is compatible with the context 1724 } 1725 if (read && read!=draw) { 1726 egl_surface_t* s = (egl_surface_t*)read; 1727 if (!s->isValid()) 1728 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1729 if (s->dpy != dpy) 1730 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1731 // TODO: check that read is compatible with the context 1732 } 1733 1734 EGLContext current_ctx = EGL_NO_CONTEXT; 1735 1736 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1737 return setError(EGL_BAD_MATCH, EGL_FALSE); 1738 1739 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1740 return setError(EGL_BAD_MATCH, EGL_FALSE); 1741 1742 if (ctx == EGL_NO_CONTEXT) { 1743 // if we're detaching, we need the current context 1744 current_ctx = (EGLContext)getGlThreadSpecific(); 1745 } else { 1746 egl_context_t* c = egl_context_t::context(ctx); 1747 egl_surface_t* d = (egl_surface_t*)draw; 1748 egl_surface_t* r = (egl_surface_t*)read; 1749 if ((d && d->ctx && d->ctx != ctx) || 1750 (r && r->ctx && r->ctx != ctx)) { 1751 // one of the surface is bound to a context in another thread 1752 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1753 } 1754 } 1755 1756 ogles_context_t* gl = (ogles_context_t*)ctx; 1757 if (makeCurrent(gl) == 0) { 1758 if (ctx) { 1759 egl_context_t* c = egl_context_t::context(ctx); 1760 egl_surface_t* d = (egl_surface_t*)draw; 1761 egl_surface_t* r = (egl_surface_t*)read; 1762 1763 if (c->draw) { 1764 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1765 s->disconnect(); 1766 } 1767 if (c->read) { 1768 // FIXME: unlock/disconnect the read surface too 1769 } 1770 1771 c->draw = draw; 1772 c->read = read; 1773 1774 if (c->flags & egl_context_t::NEVER_CURRENT) { 1775 c->flags &= ~egl_context_t::NEVER_CURRENT; 1776 GLint w = 0; 1777 GLint h = 0; 1778 if (draw) { 1779 w = d->getWidth(); 1780 h = d->getHeight(); 1781 } 1782 ogles_surfaceport(gl, 0, 0); 1783 ogles_viewport(gl, 0, 0, w, h); 1784 ogles_scissor(gl, 0, 0, w, h); 1785 } 1786 if (d) { 1787 if (d->connect() == EGL_FALSE) { 1788 return EGL_FALSE; 1789 } 1790 d->ctx = ctx; 1791 d->bindDrawSurface(gl); 1792 } 1793 if (r) { 1794 // FIXME: lock/connect the read surface too 1795 r->ctx = ctx; 1796 r->bindReadSurface(gl); 1797 } 1798 } else { 1799 // if surfaces were bound to the context bound to this thread 1800 // mark then as unbound. 1801 if (current_ctx) { 1802 egl_context_t* c = egl_context_t::context(current_ctx); 1803 egl_surface_t* d = (egl_surface_t*)c->draw; 1804 egl_surface_t* r = (egl_surface_t*)c->read; 1805 if (d) { 1806 c->draw = 0; 1807 d->ctx = EGL_NO_CONTEXT; 1808 d->disconnect(); 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 android_native_buffer_t* native_buffer = (android_native_buffer_t*)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(android_native_buffer_t)) 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 case HAL_PIXEL_FORMAT_RGBA_5551: 2076 case HAL_PIXEL_FORMAT_RGBA_4444: 2077 break; 2078 default: 2079 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2080 } 2081 2082 native_buffer->common.incRef(&native_buffer->common); 2083 return (EGLImageKHR)native_buffer; 2084} 2085 2086EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2087{ 2088 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2089 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2090 } 2091 2092 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 2093 2094 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2095 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2096 2097 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2098 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2099 2100 native_buffer->common.decRef(&native_buffer->common); 2101 2102 return EGL_TRUE; 2103} 2104 2105// ---------------------------------------------------------------------------- 2106// ANDROID extensions 2107// ---------------------------------------------------------------------------- 2108 2109EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2110 EGLint left, EGLint top, EGLint width, EGLint height) 2111{ 2112 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2113 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2114 2115 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2116 if (!d->isValid()) 2117 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2118 if (d->dpy != dpy) 2119 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2120 2121 // post the surface 2122 d->setSwapRectangle(left, top, width, height); 2123 2124 return EGL_TRUE; 2125} 2126