egl.cpp revision 1071c201432405883c22ae4a331cc5a1b3a0fa8c
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); 161 virtual EGLClientBuffer getRenderBuffer() const; 162protected: 163 GGLSurface depth; 164}; 165 166egl_surface_t::egl_surface_t(EGLDisplay dpy, 167 EGLConfig config, 168 int32_t depthFormat) 169 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 170{ 171 depth.version = sizeof(GGLSurface); 172 depth.data = 0; 173 depth.format = depthFormat; 174} 175egl_surface_t::~egl_surface_t() 176{ 177 magic = 0; 178 free(depth.data); 179} 180bool egl_surface_t::isValid() const { 181 LOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this); 182 return magic == MAGIC; 183} 184 185EGLBoolean egl_surface_t::swapBuffers() { 186 return EGL_FALSE; 187} 188EGLint egl_surface_t::getHorizontalResolution() const { 189 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 190} 191EGLint egl_surface_t::getVerticalResolution() const { 192 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 193} 194EGLint egl_surface_t::getRefreshRate() const { 195 return (60 * EGL_DISPLAY_SCALING); 196} 197EGLint egl_surface_t::getSwapBehavior() const { 198 return EGL_BUFFER_PRESERVED; 199} 200EGLBoolean egl_surface_t::setSwapRectangle( 201 EGLint l, EGLint t, EGLint w, EGLint h) 202{ 203 return EGL_FALSE; 204} 205EGLClientBuffer egl_surface_t::getRenderBuffer() const { 206 return 0; 207} 208 209// ---------------------------------------------------------------------------- 210 211struct egl_window_surface_v2_t : public egl_surface_t 212{ 213 egl_window_surface_v2_t( 214 EGLDisplay dpy, EGLConfig config, 215 int32_t depthFormat, 216 ANativeWindow* window); 217 218 ~egl_window_surface_v2_t(); 219 220 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails 221 virtual EGLBoolean swapBuffers(); 222 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 223 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 224 virtual EGLBoolean connect(); 225 virtual void disconnect(); 226 virtual EGLint getWidth() const { return width; } 227 virtual EGLint getHeight() const { return height; } 228 virtual EGLint getHorizontalResolution() const; 229 virtual EGLint getVerticalResolution() const; 230 virtual EGLint getRefreshRate() const; 231 virtual EGLint getSwapBehavior() const; 232 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 233 virtual EGLClientBuffer getRenderBuffer() const; 234 235private: 236 status_t lock(android_native_buffer_t* buf, int usage, void** vaddr); 237 status_t unlock(android_native_buffer_t* buf); 238 ANativeWindow* nativeWindow; 239 android_native_buffer_t* buffer; 240 android_native_buffer_t* previousBuffer; 241 gralloc_module_t const* module; 242 copybit_device_t* blitengine; 243 int width; 244 int height; 245 void* bits; 246 GGLFormat const* pixelFormatTable; 247 248 struct Rect { 249 inline Rect() { }; 250 inline Rect(int32_t w, int32_t h) 251 : left(0), top(0), right(w), bottom(h) { } 252 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 253 : left(l), top(t), right(r), bottom(b) { } 254 Rect& andSelf(const Rect& r) { 255 left = max(left, r.left); 256 top = max(top, r.top); 257 right = min(right, r.right); 258 bottom = min(bottom, r.bottom); 259 return *this; 260 } 261 bool isEmpty() const { 262 return (left>=right || top>=bottom); 263 } 264 void dump(char const* what) { 265 LOGD("%s { %5d, %5d, w=%5d, h=%5d }", 266 what, left, top, right-left, bottom-top); 267 } 268 269 int32_t left; 270 int32_t top; 271 int32_t right; 272 int32_t bottom; 273 }; 274 275 struct Region { 276 inline Region() : count(0) { } 277 typedef Rect const* const_iterator; 278 const_iterator begin() const { return storage; } 279 const_iterator end() const { return storage+count; } 280 static Region subtract(const Rect& lhs, const Rect& rhs) { 281 Region reg; 282 Rect* storage = reg.storage; 283 if (!lhs.isEmpty()) { 284 if (lhs.top < rhs.top) { // top rect 285 storage->left = lhs.left; 286 storage->top = lhs.top; 287 storage->right = lhs.right; 288 storage->bottom = rhs.top; 289 storage++; 290 } 291 const int32_t top = max(lhs.top, rhs.top); 292 const int32_t bot = min(lhs.bottom, rhs.bottom); 293 if (top < bot) { 294 if (lhs.left < rhs.left) { // left-side rect 295 storage->left = lhs.left; 296 storage->top = top; 297 storage->right = rhs.left; 298 storage->bottom = bot; 299 storage++; 300 } 301 if (lhs.right > rhs.right) { // right-side rect 302 storage->left = rhs.right; 303 storage->top = top; 304 storage->right = lhs.right; 305 storage->bottom = bot; 306 storage++; 307 } 308 } 309 if (lhs.bottom > rhs.bottom) { // bottom rect 310 storage->left = lhs.left; 311 storage->top = rhs.bottom; 312 storage->right = lhs.right; 313 storage->bottom = lhs.bottom; 314 storage++; 315 } 316 reg.count = storage - reg.storage; 317 } 318 return reg; 319 } 320 bool isEmpty() const { 321 return count<=0; 322 } 323 private: 324 Rect storage[4]; 325 ssize_t count; 326 }; 327 328 struct region_iterator : public copybit_region_t { 329 region_iterator(const Region& region) 330 : b(region.begin()), e(region.end()) { 331 this->next = iterate; 332 } 333 private: 334 static int iterate(copybit_region_t const * self, copybit_rect_t* rect) { 335 region_iterator const* me = static_cast<region_iterator const*>(self); 336 if (me->b != me->e) { 337 *reinterpret_cast<Rect*>(rect) = *me->b++; 338 return 1; 339 } 340 return 0; 341 } 342 mutable Region::const_iterator b; 343 Region::const_iterator const e; 344 }; 345 346 void copyBlt( 347 android_native_buffer_t* dst, void* dst_vaddr, 348 android_native_buffer_t* src, void const* src_vaddr, 349 const Region& clip); 350 351 Rect dirtyRegion; 352 Rect oldDirtyRegion; 353}; 354 355egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 356 EGLConfig config, 357 int32_t depthFormat, 358 ANativeWindow* window) 359 : egl_surface_t(dpy, config, depthFormat), 360 nativeWindow(window), buffer(0), previousBuffer(0), module(0), 361 blitengine(0), bits(NULL) 362{ 363 hw_module_t const* pModule; 364 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 365 module = reinterpret_cast<gralloc_module_t const*>(pModule); 366 367 if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &pModule) == 0) { 368 copybit_open(pModule, &blitengine); 369 } 370 371 pixelFormatTable = gglGetPixelFormatTable(); 372 373 // keep a reference on the window 374 nativeWindow->common.incRef(&nativeWindow->common); 375 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width); 376 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height); 377} 378 379egl_window_surface_v2_t::~egl_window_surface_v2_t() { 380 if (buffer) { 381 buffer->common.decRef(&buffer->common); 382 } 383 if (previousBuffer) { 384 previousBuffer->common.decRef(&previousBuffer->common); 385 } 386 nativeWindow->common.decRef(&nativeWindow->common); 387 if (blitengine) { 388 copybit_close(blitengine); 389 } 390} 391 392EGLBoolean egl_window_surface_v2_t::connect() 393{ 394 // we're intending to do software rendering 395 native_window_set_usage(nativeWindow, 396 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); 397 398 // dequeue a buffer 399 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) { 400 return setError(EGL_BAD_ALLOC, EGL_FALSE); 401 } 402 403 // allocate a corresponding depth-buffer 404 width = buffer->width; 405 height = buffer->height; 406 if (depth.format) { 407 depth.width = width; 408 depth.height = height; 409 depth.stride = depth.width; // use the width here 410 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 411 if (depth.data == 0) { 412 return setError(EGL_BAD_ALLOC, EGL_FALSE); 413 } 414 } 415 416 // keep a reference on the buffer 417 buffer->common.incRef(&buffer->common); 418 419 // Lock the buffer 420 nativeWindow->lockBuffer(nativeWindow, buffer); 421 // pin the buffer down 422 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 423 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 424 LOGE("connect() failed to lock buffer %p (%ux%u)", 425 buffer, buffer->width, buffer->height); 426 return setError(EGL_BAD_ACCESS, EGL_FALSE); 427 // FIXME: we should make sure we're not accessing the buffer anymore 428 } 429 return EGL_TRUE; 430} 431 432void egl_window_surface_v2_t::disconnect() 433{ 434 if (buffer && bits) { 435 bits = NULL; 436 unlock(buffer); 437 } 438 // enqueue the last frame 439 nativeWindow->queueBuffer(nativeWindow, buffer); 440 if (buffer) { 441 buffer->common.decRef(&buffer->common); 442 buffer = 0; 443 } 444 if (previousBuffer) { 445 previousBuffer->common.decRef(&previousBuffer->common); 446 previousBuffer = 0; 447 } 448} 449 450status_t egl_window_surface_v2_t::lock( 451 android_native_buffer_t* buf, int usage, void** vaddr) 452{ 453 int err; 454 if (sw_gralloc_handle_t::validate(buf->handle) < 0) { 455 err = module->lock(module, buf->handle, 456 usage, 0, 0, buf->width, buf->height, vaddr); 457 } else { 458 sw_gralloc_handle_t const* hnd = 459 reinterpret_cast<sw_gralloc_handle_t const*>(buf->handle); 460 *vaddr = (void*)hnd->base; 461 err = NO_ERROR; 462 } 463 return err; 464} 465 466status_t egl_window_surface_v2_t::unlock(android_native_buffer_t* buf) 467{ 468 if (!buf) return BAD_VALUE; 469 int err = NO_ERROR; 470 if (sw_gralloc_handle_t::validate(buf->handle) < 0) { 471 err = module->unlock(module, buf->handle); 472 } 473 return err; 474} 475 476void egl_window_surface_v2_t::copyBlt( 477 android_native_buffer_t* dst, void* dst_vaddr, 478 android_native_buffer_t* src, void const* src_vaddr, 479 const Region& clip) 480{ 481 // FIXME: use copybit if possible 482 // NOTE: dst and src must be the same format 483 484 status_t err = NO_ERROR; 485 copybit_device_t* const copybit = blitengine; 486 if (copybit) { 487 copybit_image_t simg; 488 simg.w = src->stride; 489 simg.h = src->height; 490 simg.format = src->format; 491 simg.handle = const_cast<native_handle_t*>(src->handle); 492 493 copybit_image_t dimg; 494 dimg.w = dst->stride; 495 dimg.h = dst->height; 496 dimg.format = dst->format; 497 dimg.handle = const_cast<native_handle_t*>(dst->handle); 498 499 copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0); 500 copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255); 501 copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_DISABLE); 502 region_iterator it(clip); 503 err = copybit->blit(copybit, &dimg, &simg, &it); 504 if (err != NO_ERROR) { 505 LOGE("copybit failed (%s)", strerror(err)); 506 } 507 } 508 509 if (!copybit || err) { 510 Region::const_iterator cur = clip.begin(); 511 Region::const_iterator end = clip.end(); 512 513 const size_t bpp = pixelFormatTable[src->format].size; 514 const size_t dbpr = dst->stride * bpp; 515 const size_t sbpr = src->stride * bpp; 516 517 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 518 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 519 520 while (cur != end) { 521 const Rect& r(*cur++); 522 ssize_t w = r.right - r.left; 523 ssize_t h = r.bottom - r.top; 524 if (w <= 0 || h<=0) continue; 525 size_t size = w * bpp; 526 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 527 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 528 if (dbpr==sbpr && size==sbpr) { 529 size *= h; 530 h = 1; 531 } 532 do { 533 memcpy(d, s, size); 534 d += dbpr; 535 s += sbpr; 536 } while (--h > 0); 537 } 538 } 539} 540 541EGLBoolean egl_window_surface_v2_t::swapBuffers() 542{ 543 if (!buffer) { 544 return setError(EGL_BAD_ACCESS, EGL_FALSE); 545 } 546 547 /* 548 * Handle eglSetSwapRectangleANDROID() 549 * We copyback from the front buffer 550 */ 551 if (!dirtyRegion.isEmpty()) { 552 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 553 if (previousBuffer) { 554 const Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 555 if (!copyBack.isEmpty()) { 556 void* prevBits; 557 if (lock(previousBuffer, 558 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 559 // copy from previousBuffer to buffer 560 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 561 unlock(previousBuffer); 562 } 563 } 564 } 565 oldDirtyRegion = dirtyRegion; 566 } 567 568 if (previousBuffer) { 569 previousBuffer->common.decRef(&previousBuffer->common); 570 previousBuffer = 0; 571 } 572 573 unlock(buffer); 574 previousBuffer = buffer; 575 nativeWindow->queueBuffer(nativeWindow, buffer); 576 buffer = 0; 577 578 // dequeue a new buffer 579 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) { 580 581 // TODO: lockBuffer should rather be executed when the very first 582 // direct rendering occurs. 583 nativeWindow->lockBuffer(nativeWindow, buffer); 584 585 // reallocate the depth-buffer if needed 586 if ((width != buffer->width) || (height != buffer->height)) { 587 // TODO: we probably should reset the swap rect here 588 // if the window size has changed 589 width = buffer->width; 590 height = buffer->height; 591 if (depth.data) { 592 free(depth.data); 593 depth.width = width; 594 depth.height = height; 595 depth.stride = buffer->stride; 596 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 597 if (depth.data == 0) { 598 setError(EGL_BAD_ALLOC, EGL_FALSE); 599 return EGL_FALSE; 600 } 601 } 602 } 603 604 // keep a reference on the buffer 605 buffer->common.incRef(&buffer->common); 606 607 // finally pin the buffer down 608 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 609 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 610 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 611 buffer, buffer->width, buffer->height); 612 return setError(EGL_BAD_ACCESS, EGL_FALSE); 613 // FIXME: we should make sure we're not accessing the buffer anymore 614 } 615 } else { 616 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE); 617 } 618 619 return EGL_TRUE; 620} 621 622EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 623 EGLint l, EGLint t, EGLint w, EGLint h) 624{ 625 dirtyRegion = Rect(l, t, l+w, t+h); 626 return EGL_TRUE; 627} 628 629EGLClientBuffer egl_window_surface_v2_t::getRenderBuffer() const 630{ 631 return buffer; 632} 633 634EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 635{ 636 GGLSurface buffer; 637 buffer.version = sizeof(GGLSurface); 638 buffer.width = this->buffer->width; 639 buffer.height = this->buffer->height; 640 buffer.stride = this->buffer->stride; 641 buffer.data = (GGLubyte*)bits; 642 buffer.format = this->buffer->format; 643 gl->rasterizer.procs.colorBuffer(gl, &buffer); 644 if (depth.data != gl->rasterizer.state.buffers.depth.data) 645 gl->rasterizer.procs.depthBuffer(gl, &depth); 646 647 return EGL_TRUE; 648} 649EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 650{ 651 GGLSurface buffer; 652 buffer.version = sizeof(GGLSurface); 653 buffer.width = this->buffer->width; 654 buffer.height = this->buffer->height; 655 buffer.stride = this->buffer->stride; 656 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 657 buffer.format = this->buffer->format; 658 gl->rasterizer.procs.readBuffer(gl, &buffer); 659 return EGL_TRUE; 660} 661EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 662 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 663} 664EGLint egl_window_surface_v2_t::getVerticalResolution() const { 665 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 666} 667EGLint egl_window_surface_v2_t::getRefreshRate() const { 668 return (60 * EGL_DISPLAY_SCALING); // FIXME 669} 670EGLint egl_window_surface_v2_t::getSwapBehavior() const 671{ 672 /* 673 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 674 * the content of the swapped buffer. 675 * 676 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 677 * 678 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 679 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 680 * is, everything outside of this area is preserved. 681 * 682 * This implementation of EGL assumes the later case. 683 * 684 */ 685 686 return EGL_BUFFER_DESTROYED; 687} 688 689// ---------------------------------------------------------------------------- 690 691struct egl_pixmap_surface_t : public egl_surface_t 692{ 693 egl_pixmap_surface_t( 694 EGLDisplay dpy, EGLConfig config, 695 int32_t depthFormat, 696 egl_native_pixmap_t const * pixmap); 697 698 virtual ~egl_pixmap_surface_t() { } 699 700 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 701 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 702 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 703 virtual EGLint getWidth() const { return nativePixmap.width; } 704 virtual EGLint getHeight() const { return nativePixmap.height; } 705private: 706 egl_native_pixmap_t nativePixmap; 707}; 708 709egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 710 EGLConfig config, 711 int32_t depthFormat, 712 egl_native_pixmap_t const * pixmap) 713 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 714{ 715 if (depthFormat) { 716 depth.width = pixmap->width; 717 depth.height = pixmap->height; 718 depth.stride = depth.width; // use the width here 719 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 720 if (depth.data == 0) { 721 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 722 } 723 } 724} 725EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 726{ 727 GGLSurface buffer; 728 buffer.version = sizeof(GGLSurface); 729 buffer.width = nativePixmap.width; 730 buffer.height = nativePixmap.height; 731 buffer.stride = nativePixmap.stride; 732 buffer.data = nativePixmap.data; 733 buffer.format = nativePixmap.format; 734 735 gl->rasterizer.procs.colorBuffer(gl, &buffer); 736 if (depth.data != gl->rasterizer.state.buffers.depth.data) 737 gl->rasterizer.procs.depthBuffer(gl, &depth); 738 return EGL_TRUE; 739} 740EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 741{ 742 GGLSurface buffer; 743 buffer.version = sizeof(GGLSurface); 744 buffer.width = nativePixmap.width; 745 buffer.height = nativePixmap.height; 746 buffer.stride = nativePixmap.stride; 747 buffer.data = nativePixmap.data; 748 buffer.format = nativePixmap.format; 749 gl->rasterizer.procs.readBuffer(gl, &buffer); 750 return EGL_TRUE; 751} 752 753// ---------------------------------------------------------------------------- 754 755struct egl_pbuffer_surface_t : public egl_surface_t 756{ 757 egl_pbuffer_surface_t( 758 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 759 int32_t w, int32_t h, int32_t f); 760 761 virtual ~egl_pbuffer_surface_t(); 762 763 virtual bool initCheck() const { return pbuffer.data != 0; } 764 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 765 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 766 virtual EGLint getWidth() const { return pbuffer.width; } 767 virtual EGLint getHeight() const { return pbuffer.height; } 768private: 769 GGLSurface pbuffer; 770}; 771 772egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 773 EGLConfig config, int32_t depthFormat, 774 int32_t w, int32_t h, int32_t f) 775 : egl_surface_t(dpy, config, depthFormat) 776{ 777 size_t size = w*h; 778 switch (f) { 779 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 780 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 781 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 782 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break; 783 default: 784 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 785 pbuffer.data = 0; 786 break; 787 } 788 pbuffer.version = sizeof(GGLSurface); 789 pbuffer.width = w; 790 pbuffer.height = h; 791 pbuffer.stride = w; 792 pbuffer.data = (GGLubyte*)malloc(size); 793 pbuffer.format = f; 794 795 if (depthFormat) { 796 depth.width = pbuffer.width; 797 depth.height = pbuffer.height; 798 depth.stride = depth.width; // use the width here 799 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 800 if (depth.data == 0) { 801 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 802 return; 803 } 804 } 805} 806egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 807 free(pbuffer.data); 808} 809EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 810{ 811 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 812 if (depth.data != gl->rasterizer.state.buffers.depth.data) 813 gl->rasterizer.procs.depthBuffer(gl, &depth); 814 return EGL_TRUE; 815} 816EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 817{ 818 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 819 return EGL_TRUE; 820} 821 822// ---------------------------------------------------------------------------- 823 824struct config_pair_t { 825 GLint key; 826 GLint value; 827}; 828 829struct configs_t { 830 const config_pair_t* array; 831 int size; 832}; 833 834struct config_management_t { 835 GLint key; 836 bool (*match)(GLint reqValue, GLint confValue); 837 static bool atLeast(GLint reqValue, GLint confValue) { 838 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 839 } 840 static bool exact(GLint reqValue, GLint confValue) { 841 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 842 } 843 static bool mask(GLint reqValue, GLint confValue) { 844 return (confValue & reqValue) == reqValue; 845 } 846}; 847 848// ---------------------------------------------------------------------------- 849 850#define VERSION_MAJOR 1 851#define VERSION_MINOR 2 852static char const * const gVendorString = "Google Inc."; 853static char const * const gVersionString = "1.2 Android Driver 1.1.0"; 854static char const * const gClientApiString = "OpenGL ES"; 855static char const * const gExtensionsString = 856 "EGL_KHR_image_base " 857 // "KHR_image_pixmap " 858 "EGL_ANDROID_image_native_buffer " 859 "EGL_ANDROID_swap_rectangle " 860 "EGL_ANDROID_get_render_buffer " 861 ; 862 863// ---------------------------------------------------------------------------- 864 865struct extention_map_t { 866 const char * const name; 867 __eglMustCastToProperFunctionPointerType address; 868}; 869 870static const extention_map_t gExtentionMap[] = { 871 { "glDrawTexsOES", 872 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 873 { "glDrawTexiOES", 874 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 875 { "glDrawTexfOES", 876 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 877 { "glDrawTexxOES", 878 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 879 { "glDrawTexsvOES", 880 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 881 { "glDrawTexivOES", 882 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 883 { "glDrawTexfvOES", 884 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 885 { "glDrawTexxvOES", 886 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 887 { "glQueryMatrixxOES", 888 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 889 { "glEGLImageTargetTexture2DOES", 890 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 891 { "glEGLImageTargetRenderbufferStorageOES", 892 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 893 { "glClipPlanef", 894 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 895 { "glClipPlanex", 896 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 897 { "glBindBuffer", 898 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 899 { "glBufferData", 900 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 901 { "glBufferSubData", 902 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 903 { "glDeleteBuffers", 904 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 905 { "glGenBuffers", 906 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 907 { "eglCreateImageKHR", 908 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 909 { "eglDestroyImageKHR", 910 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 911 { "eglSetSwapRectangleANDROID", 912 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 913 { "eglGetRenderBufferANDROID", 914 (__eglMustCastToProperFunctionPointerType)&eglGetRenderBufferANDROID }, 915}; 916 917/* 918 * In the lists below, attributes names MUST be sorted. 919 * Additionally, all configs must be sorted according to 920 * the EGL specification. 921 */ 922 923static config_pair_t const config_base_attribute_list[] = { 924 { EGL_STENCIL_SIZE, 0 }, 925 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 926 { EGL_LEVEL, 0 }, 927 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 928 { EGL_MAX_PBUFFER_PIXELS, 929 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 930 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 931 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 932 { EGL_NATIVE_VISUAL_ID, 0 }, 933 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 934 { EGL_SAMPLES, 0 }, 935 { EGL_SAMPLE_BUFFERS, 0 }, 936 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 937 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 938 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 939 { EGL_TRANSPARENT_RED_VALUE, 0 }, 940 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 941 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 942 { EGL_MIN_SWAP_INTERVAL, 1 }, 943 { EGL_MAX_SWAP_INTERVAL, 1 }, 944 { EGL_LUMINANCE_SIZE, 0 }, 945 { EGL_ALPHA_MASK_SIZE, 0 }, 946 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER }, 947 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 948 { EGL_CONFORMANT, 0 } 949}; 950 951// These configs can override the base attribute list 952// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 953 954// 565 configs 955static config_pair_t const config_0_attribute_list[] = { 956 { EGL_BUFFER_SIZE, 16 }, 957 { EGL_ALPHA_SIZE, 0 }, 958 { EGL_BLUE_SIZE, 5 }, 959 { EGL_GREEN_SIZE, 6 }, 960 { EGL_RED_SIZE, 5 }, 961 { EGL_DEPTH_SIZE, 0 }, 962 { EGL_CONFIG_ID, 0 }, 963 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 964}; 965 966static config_pair_t const config_1_attribute_list[] = { 967 { EGL_BUFFER_SIZE, 16 }, 968 { EGL_ALPHA_SIZE, 0 }, 969 { EGL_BLUE_SIZE, 5 }, 970 { EGL_GREEN_SIZE, 6 }, 971 { EGL_RED_SIZE, 5 }, 972 { EGL_DEPTH_SIZE, 16 }, 973 { EGL_CONFIG_ID, 1 }, 974 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 975}; 976 977// RGB 888 configs 978static config_pair_t const config_2_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, 0 }, 985 { EGL_CONFIG_ID, 6 }, 986 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 987}; 988 989static config_pair_t const config_3_attribute_list[] = { 990 { EGL_BUFFER_SIZE, 32 }, 991 { EGL_ALPHA_SIZE, 0 }, 992 { EGL_BLUE_SIZE, 8 }, 993 { EGL_GREEN_SIZE, 8 }, 994 { EGL_RED_SIZE, 8 }, 995 { EGL_DEPTH_SIZE, 16 }, 996 { EGL_CONFIG_ID, 7 }, 997 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 998}; 999 1000// 8888 configs 1001static config_pair_t const config_4_attribute_list[] = { 1002 { EGL_BUFFER_SIZE, 32 }, 1003 { EGL_ALPHA_SIZE, 8 }, 1004 { EGL_BLUE_SIZE, 8 }, 1005 { EGL_GREEN_SIZE, 8 }, 1006 { EGL_RED_SIZE, 8 }, 1007 { EGL_DEPTH_SIZE, 0 }, 1008 { EGL_CONFIG_ID, 2 }, 1009 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1010}; 1011 1012static config_pair_t const config_5_attribute_list[] = { 1013 { EGL_BUFFER_SIZE, 32 }, 1014 { EGL_ALPHA_SIZE, 8 }, 1015 { EGL_BLUE_SIZE, 8 }, 1016 { EGL_GREEN_SIZE, 8 }, 1017 { EGL_RED_SIZE, 8 }, 1018 { EGL_DEPTH_SIZE, 16 }, 1019 { EGL_CONFIG_ID, 3 }, 1020 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1021}; 1022 1023// A8 configs 1024static config_pair_t const config_6_attribute_list[] = { 1025 { EGL_BUFFER_SIZE, 8 }, 1026 { EGL_ALPHA_SIZE, 8 }, 1027 { EGL_BLUE_SIZE, 0 }, 1028 { EGL_GREEN_SIZE, 0 }, 1029 { EGL_RED_SIZE, 0 }, 1030 { EGL_DEPTH_SIZE, 0 }, 1031 { EGL_CONFIG_ID, 4 }, 1032 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1033}; 1034 1035static config_pair_t const config_7_attribute_list[] = { 1036 { EGL_BUFFER_SIZE, 8 }, 1037 { EGL_ALPHA_SIZE, 8 }, 1038 { EGL_BLUE_SIZE, 0 }, 1039 { EGL_GREEN_SIZE, 0 }, 1040 { EGL_RED_SIZE, 0 }, 1041 { EGL_DEPTH_SIZE, 16 }, 1042 { EGL_CONFIG_ID, 5 }, 1043 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1044}; 1045 1046static configs_t const gConfigs[] = { 1047 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 1048 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 1049 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 1050 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 1051 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 1052 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 1053 { config_6_attribute_list, NELEM(config_6_attribute_list) }, 1054 { config_7_attribute_list, NELEM(config_7_attribute_list) }, 1055}; 1056 1057static config_management_t const gConfigManagement[] = { 1058 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 1059 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1060 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1061 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1062 { EGL_RED_SIZE, config_management_t::atLeast }, 1063 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1064 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1065 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1066 { EGL_CONFIG_ID, config_management_t::exact }, 1067 { EGL_LEVEL, config_management_t::exact }, 1068 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::exact }, 1069 { EGL_MAX_PBUFFER_PIXELS, config_management_t::exact }, 1070 { EGL_MAX_PBUFFER_WIDTH, config_management_t::exact }, 1071 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1072 { EGL_NATIVE_VISUAL_ID, config_management_t::exact }, 1073 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1074 { EGL_SAMPLES, config_management_t::exact }, 1075 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1076 { EGL_SURFACE_TYPE, config_management_t::mask }, 1077 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1078 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1079 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1080 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1081 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1082 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1083 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1084 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1085 { EGL_LUMINANCE_SIZE, config_management_t::atLeast }, 1086 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast }, 1087 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact }, 1088 { EGL_RENDERABLE_TYPE, config_management_t::mask }, 1089 { EGL_CONFORMANT, config_management_t::mask } 1090}; 1091 1092 1093static config_pair_t const config_defaults[] = { 1094 // attributes that are not specified are simply ignored, if a particular 1095 // one needs not be ignored, it must be specified here, eg: 1096 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1097}; 1098 1099// ---------------------------------------------------------------------------- 1100 1101static status_t getConfigFormatInfo(EGLint configID, 1102 int32_t& pixelFormat, int32_t& depthFormat) 1103{ 1104 switch(configID) { 1105 case 0: 1106 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1107 depthFormat = 0; 1108 break; 1109 case 1: 1110 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1111 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1112 break; 1113 case 2: 1114 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1115 depthFormat = 0; 1116 break; 1117 case 3: 1118 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1119 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1120 break; 1121 case 4: 1122 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1123 depthFormat = 0; 1124 break; 1125 case 5: 1126 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1127 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1128 break; 1129 case 6: 1130 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1131 depthFormat = 0; 1132 break; 1133 case 7: 1134 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1135 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1136 break; 1137 default: 1138 return NAME_NOT_FOUND; 1139 } 1140 return NO_ERROR; 1141} 1142 1143// ---------------------------------------------------------------------------- 1144 1145template<typename T> 1146static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1147{ 1148 while (first <= last) { 1149 int mid = (first + last) / 2; 1150 if (key > sortedArray[mid].key) { 1151 first = mid + 1; 1152 } else if (key < sortedArray[mid].key) { 1153 last = mid - 1; 1154 } else { 1155 return mid; 1156 } 1157 } 1158 return -1; 1159} 1160 1161static int isAttributeMatching(int i, EGLint attr, EGLint val) 1162{ 1163 // look for the attribute in all of our configs 1164 config_pair_t const* configFound = gConfigs[i].array; 1165 int index = binarySearch<config_pair_t>( 1166 gConfigs[i].array, 1167 0, gConfigs[i].size-1, 1168 attr); 1169 if (index < 0) { 1170 configFound = config_base_attribute_list; 1171 index = binarySearch<config_pair_t>( 1172 config_base_attribute_list, 1173 0, NELEM(config_base_attribute_list)-1, 1174 attr); 1175 } 1176 if (index >= 0) { 1177 // attribute found, check if this config could match 1178 int cfgMgtIndex = binarySearch<config_management_t>( 1179 gConfigManagement, 1180 0, NELEM(gConfigManagement)-1, 1181 attr); 1182 if (cfgMgtIndex >= 0) { 1183 bool match = gConfigManagement[cfgMgtIndex].match( 1184 val, configFound[index].value); 1185 if (match) { 1186 // this config matches 1187 return 1; 1188 } 1189 } else { 1190 // attribute not found. this should NEVER happen. 1191 } 1192 } else { 1193 // error, this attribute doesn't exist 1194 } 1195 return 0; 1196} 1197 1198static int makeCurrent(ogles_context_t* gl) 1199{ 1200 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1201 if (gl) { 1202 egl_context_t* c = egl_context_t::context(gl); 1203 if (c->flags & egl_context_t::IS_CURRENT) { 1204 if (current != gl) { 1205 // it is an error to set a context current, if it's already 1206 // current to another thread 1207 return -1; 1208 } 1209 } else { 1210 if (current) { 1211 // mark the current context as not current, and flush 1212 glFlush(); 1213 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1214 } 1215 } 1216 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1217 // The context is not current, make it current! 1218 setGlThreadSpecific(gl); 1219 c->flags |= egl_context_t::IS_CURRENT; 1220 } 1221 } else { 1222 if (current) { 1223 // mark the current context as not current, and flush 1224 glFlush(); 1225 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1226 } 1227 // this thread has no context attached to it 1228 setGlThreadSpecific(0); 1229 } 1230 return 0; 1231} 1232 1233static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1234 EGLint attribute, EGLint *value) 1235{ 1236 size_t numConfigs = NELEM(gConfigs); 1237 int index = (int)config; 1238 if (uint32_t(index) >= numConfigs) 1239 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1240 1241 int attrIndex; 1242 attrIndex = binarySearch<config_pair_t>( 1243 gConfigs[index].array, 1244 0, gConfigs[index].size-1, 1245 attribute); 1246 if (attrIndex>=0) { 1247 *value = gConfigs[index].array[attrIndex].value; 1248 return EGL_TRUE; 1249 } 1250 1251 attrIndex = binarySearch<config_pair_t>( 1252 config_base_attribute_list, 1253 0, NELEM(config_base_attribute_list)-1, 1254 attribute); 1255 if (attrIndex>=0) { 1256 *value = config_base_attribute_list[attrIndex].value; 1257 return EGL_TRUE; 1258 } 1259 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1260} 1261 1262static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1263 NativeWindowType window, const EGLint *attrib_list) 1264{ 1265 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1266 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1267 if (window == 0) 1268 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1269 1270 EGLint surfaceType; 1271 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1272 return EGL_FALSE; 1273 1274 if (!(surfaceType & EGL_WINDOW_BIT)) 1275 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1276 1277 if (static_cast<ANativeWindow*>(window)->common.magic != 1278 ANDROID_NATIVE_WINDOW_MAGIC) { 1279 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1280 } 1281 1282 EGLint configID; 1283 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1284 return EGL_FALSE; 1285 1286 int32_t depthFormat; 1287 int32_t pixelFormat; 1288 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1289 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1290 } 1291 1292 // FIXME: we don't have access to the pixelFormat here just yet. 1293 // (it's possible that the surface is not fully initialized) 1294 // maybe this should be done after the page-flip 1295 //if (EGLint(info.format) != pixelFormat) 1296 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1297 1298 egl_surface_t* surface; 1299 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1300 static_cast<ANativeWindow*>(window)); 1301 1302 if (!surface->initCheck()) { 1303 // there was a problem in the ctor, the error 1304 // flag has been set. 1305 delete surface; 1306 surface = 0; 1307 } 1308 return surface; 1309} 1310 1311static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1312 NativePixmapType pixmap, const EGLint *attrib_list) 1313{ 1314 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1315 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1316 if (pixmap == 0) 1317 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1318 1319 EGLint surfaceType; 1320 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1321 return EGL_FALSE; 1322 1323 if (!(surfaceType & EGL_PIXMAP_BIT)) 1324 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1325 1326 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1327 sizeof(egl_native_pixmap_t)) { 1328 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1329 } 1330 1331 EGLint configID; 1332 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1333 return EGL_FALSE; 1334 1335 int32_t depthFormat; 1336 int32_t pixelFormat; 1337 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1338 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1339 } 1340 1341 if (pixmap->format != pixelFormat) 1342 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1343 1344 egl_surface_t* surface = 1345 new egl_pixmap_surface_t(dpy, config, depthFormat, 1346 static_cast<egl_native_pixmap_t*>(pixmap)); 1347 1348 if (!surface->initCheck()) { 1349 // there was a problem in the ctor, the error 1350 // flag has been set. 1351 delete surface; 1352 surface = 0; 1353 } 1354 return surface; 1355} 1356 1357static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1358 const EGLint *attrib_list) 1359{ 1360 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1361 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1362 1363 EGLint surfaceType; 1364 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1365 return EGL_FALSE; 1366 1367 if (!(surfaceType & EGL_PBUFFER_BIT)) 1368 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1369 1370 EGLint configID; 1371 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1372 return EGL_FALSE; 1373 1374 int32_t depthFormat; 1375 int32_t pixelFormat; 1376 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1377 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1378 } 1379 1380 int32_t w = 0; 1381 int32_t h = 0; 1382 while (attrib_list[0]) { 1383 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1384 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1385 attrib_list+=2; 1386 } 1387 1388 egl_surface_t* surface = 1389 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1390 1391 if (!surface->initCheck()) { 1392 // there was a problem in the ctor, the error 1393 // flag has been set. 1394 delete surface; 1395 surface = 0; 1396 } 1397 return surface; 1398} 1399 1400// ---------------------------------------------------------------------------- 1401}; // namespace android 1402// ---------------------------------------------------------------------------- 1403 1404using namespace android; 1405 1406// ---------------------------------------------------------------------------- 1407// Initialization 1408// ---------------------------------------------------------------------------- 1409 1410EGLDisplay eglGetDisplay(NativeDisplayType display) 1411{ 1412#ifndef HAVE_ANDROID_OS 1413 // this just needs to be done once 1414 if (gGLKey == -1) { 1415 pthread_mutex_lock(&gInitMutex); 1416 if (gGLKey == -1) 1417 pthread_key_create(&gGLKey, NULL); 1418 pthread_mutex_unlock(&gInitMutex); 1419 } 1420#endif 1421 if (display == EGL_DEFAULT_DISPLAY) { 1422 EGLDisplay dpy = (EGLDisplay)1; 1423 egl_display_t& d = egl_display_t::get_display(dpy); 1424 d.type = display; 1425 return dpy; 1426 } 1427 return EGL_NO_DISPLAY; 1428} 1429 1430EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1431{ 1432 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1433 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1434 1435 EGLBoolean res = EGL_TRUE; 1436 egl_display_t& d = egl_display_t::get_display(dpy); 1437 1438 if (android_atomic_inc(&d.initialized) == 0) { 1439 // initialize stuff here if needed 1440 //pthread_mutex_lock(&gInitMutex); 1441 //pthread_mutex_unlock(&gInitMutex); 1442 } 1443 1444 if (res == EGL_TRUE) { 1445 if (major != NULL) *major = VERSION_MAJOR; 1446 if (minor != NULL) *minor = VERSION_MINOR; 1447 } 1448 return res; 1449} 1450 1451EGLBoolean eglTerminate(EGLDisplay dpy) 1452{ 1453 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1454 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1455 1456 EGLBoolean res = EGL_TRUE; 1457 egl_display_t& d = egl_display_t::get_display(dpy); 1458 if (android_atomic_dec(&d.initialized) == 1) { 1459 // TODO: destroy all resources (surfaces, contexts, etc...) 1460 //pthread_mutex_lock(&gInitMutex); 1461 //pthread_mutex_unlock(&gInitMutex); 1462 } 1463 return res; 1464} 1465 1466// ---------------------------------------------------------------------------- 1467// configuration 1468// ---------------------------------------------------------------------------- 1469 1470EGLBoolean eglGetConfigs( EGLDisplay dpy, 1471 EGLConfig *configs, 1472 EGLint config_size, EGLint *num_config) 1473{ 1474 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1475 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1476 1477 GLint numConfigs = NELEM(gConfigs); 1478 if (!configs) { 1479 *num_config = numConfigs; 1480 return EGL_TRUE; 1481 } 1482 GLint i; 1483 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1484 *configs++ = (EGLConfig)i; 1485 } 1486 *num_config = i; 1487 return EGL_TRUE; 1488} 1489 1490EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1491 EGLConfig *configs, EGLint config_size, 1492 EGLint *num_config) 1493{ 1494 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1495 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1496 1497 if (ggl_unlikely(num_config==0)) { 1498 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1499 } 1500 1501 if (ggl_unlikely(attrib_list==0)) { 1502 /* 1503 * A NULL attrib_list should be treated as though it was an empty 1504 * one (terminated with EGL_NONE) as defined in 1505 * section 3.4.1 "Querying Configurations" in the EGL specification. 1506 */ 1507 static const EGLint dummy = EGL_NONE; 1508 attrib_list = &dummy; 1509 } 1510 1511 int numAttributes = 0; 1512 int numConfigs = NELEM(gConfigs); 1513 uint32_t possibleMatch = (1<<numConfigs)-1; 1514 while(possibleMatch && *attrib_list != EGL_NONE) { 1515 numAttributes++; 1516 EGLint attr = *attrib_list++; 1517 EGLint val = *attrib_list++; 1518 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1519 if (!(possibleMatch & (1<<i))) 1520 continue; 1521 if (isAttributeMatching(i, attr, val) == 0) { 1522 possibleMatch &= ~(1<<i); 1523 } 1524 } 1525 } 1526 1527 // now, handle the attributes which have a useful default value 1528 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) { 1529 // see if this attribute was specified, if not, apply its 1530 // default value 1531 if (binarySearch<config_pair_t>( 1532 (config_pair_t const*)attrib_list, 1533 0, numAttributes-1, 1534 config_defaults[j].key) < 0) 1535 { 1536 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1537 if (!(possibleMatch & (1<<i))) 1538 continue; 1539 if (isAttributeMatching(i, 1540 config_defaults[j].key, 1541 config_defaults[j].value) == 0) 1542 { 1543 possibleMatch &= ~(1<<i); 1544 } 1545 } 1546 } 1547 } 1548 1549 // return the configurations found 1550 int n=0; 1551 if (possibleMatch) { 1552 if (configs) { 1553 for (int i=0 ; config_size && i<numConfigs ; i++) { 1554 if (possibleMatch & (1<<i)) { 1555 *configs++ = (EGLConfig)i; 1556 config_size--; 1557 n++; 1558 } 1559 } 1560 } else { 1561 for (int i=0 ; i<numConfigs ; i++) { 1562 if (possibleMatch & (1<<i)) { 1563 n++; 1564 } 1565 } 1566 } 1567 } 1568 *num_config = n; 1569 return EGL_TRUE; 1570} 1571 1572EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1573 EGLint attribute, EGLint *value) 1574{ 1575 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1576 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1577 1578 return getConfigAttrib(dpy, config, attribute, value); 1579} 1580 1581// ---------------------------------------------------------------------------- 1582// surfaces 1583// ---------------------------------------------------------------------------- 1584 1585EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1586 NativeWindowType window, 1587 const EGLint *attrib_list) 1588{ 1589 return createWindowSurface(dpy, config, window, attrib_list); 1590} 1591 1592EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1593 NativePixmapType pixmap, 1594 const EGLint *attrib_list) 1595{ 1596 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1597} 1598 1599EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1600 const EGLint *attrib_list) 1601{ 1602 return createPbufferSurface(dpy, config, attrib_list); 1603} 1604 1605EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1606{ 1607 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1608 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1609 if (eglSurface != EGL_NO_SURFACE) { 1610 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1611 if (!surface->isValid()) 1612 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1613 if (surface->dpy != dpy) 1614 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1615 if (surface->ctx) { 1616 // FIXME: this surface is current check what the spec says 1617 surface->disconnect(); 1618 surface->ctx = 0; 1619 } 1620 delete surface; 1621 } 1622 return EGL_TRUE; 1623} 1624 1625EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1626 EGLint attribute, EGLint *value) 1627{ 1628 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1629 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1630 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1631 if (!surface->isValid()) 1632 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1633 if (surface->dpy != dpy) 1634 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1635 1636 EGLBoolean ret = EGL_TRUE; 1637 switch (attribute) { 1638 case EGL_CONFIG_ID: 1639 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1640 break; 1641 case EGL_WIDTH: 1642 *value = surface->getWidth(); 1643 break; 1644 case EGL_HEIGHT: 1645 *value = surface->getHeight(); 1646 break; 1647 case EGL_LARGEST_PBUFFER: 1648 // not modified for a window or pixmap surface 1649 break; 1650 case EGL_TEXTURE_FORMAT: 1651 *value = EGL_NO_TEXTURE; 1652 break; 1653 case EGL_TEXTURE_TARGET: 1654 *value = EGL_NO_TEXTURE; 1655 break; 1656 case EGL_MIPMAP_TEXTURE: 1657 *value = EGL_FALSE; 1658 break; 1659 case EGL_MIPMAP_LEVEL: 1660 *value = 0; 1661 break; 1662 case EGL_RENDER_BUFFER: 1663 // TODO: return the real RENDER_BUFFER here 1664 *value = EGL_BACK_BUFFER; 1665 break; 1666 case EGL_HORIZONTAL_RESOLUTION: 1667 // pixel/mm * EGL_DISPLAY_SCALING 1668 *value = surface->getHorizontalResolution(); 1669 break; 1670 case EGL_VERTICAL_RESOLUTION: 1671 // pixel/mm * EGL_DISPLAY_SCALING 1672 *value = surface->getVerticalResolution(); 1673 break; 1674 case EGL_PIXEL_ASPECT_RATIO: { 1675 // w/h * EGL_DISPLAY_SCALING 1676 int wr = surface->getHorizontalResolution(); 1677 int hr = surface->getVerticalResolution(); 1678 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1679 } break; 1680 case EGL_SWAP_BEHAVIOR: 1681 *value = surface->getSwapBehavior(); 1682 break; 1683 default: 1684 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1685 } 1686 return ret; 1687} 1688 1689EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1690 EGLContext share_list, const EGLint *attrib_list) 1691{ 1692 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1693 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1694 1695 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1696 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1697 1698 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1699 c->flags = egl_context_t::NEVER_CURRENT; 1700 c->dpy = dpy; 1701 c->config = config; 1702 c->read = 0; 1703 c->draw = 0; 1704 return (EGLContext)gl; 1705} 1706 1707EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1708{ 1709 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1710 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1711 egl_context_t* c = egl_context_t::context(ctx); 1712 if (c->flags & egl_context_t::IS_CURRENT) 1713 setGlThreadSpecific(0); 1714 ogles_uninit((ogles_context_t*)ctx); 1715 return EGL_TRUE; 1716} 1717 1718EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1719 EGLSurface read, EGLContext ctx) 1720{ 1721 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1722 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1723 if (draw) { 1724 egl_surface_t* s = (egl_surface_t*)draw; 1725 if (!s->isValid()) 1726 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1727 if (s->dpy != dpy) 1728 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1729 // TODO: check that draw is compatible with the context 1730 } 1731 if (read && read!=draw) { 1732 egl_surface_t* s = (egl_surface_t*)read; 1733 if (!s->isValid()) 1734 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1735 if (s->dpy != dpy) 1736 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1737 // TODO: check that read is compatible with the context 1738 } 1739 1740 EGLContext current_ctx = EGL_NO_CONTEXT; 1741 1742 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1743 return setError(EGL_BAD_MATCH, EGL_FALSE); 1744 1745 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1746 return setError(EGL_BAD_MATCH, EGL_FALSE); 1747 1748 if (ctx == EGL_NO_CONTEXT) { 1749 // if we're detaching, we need the current context 1750 current_ctx = (EGLContext)getGlThreadSpecific(); 1751 } else { 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 if ((d && d->ctx && d->ctx != ctx) || 1756 (r && r->ctx && r->ctx != ctx)) { 1757 // one of the surface is bound to a context in another thread 1758 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1759 } 1760 } 1761 1762 ogles_context_t* gl = (ogles_context_t*)ctx; 1763 if (makeCurrent(gl) == 0) { 1764 if (ctx) { 1765 egl_context_t* c = egl_context_t::context(ctx); 1766 egl_surface_t* d = (egl_surface_t*)draw; 1767 egl_surface_t* r = (egl_surface_t*)read; 1768 1769 if (c->draw) { 1770 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1771 s->disconnect(); 1772 } 1773 if (c->read) { 1774 // FIXME: unlock/disconnect the read surface too 1775 } 1776 1777 c->draw = draw; 1778 c->read = read; 1779 1780 if (c->flags & egl_context_t::NEVER_CURRENT) { 1781 c->flags &= ~egl_context_t::NEVER_CURRENT; 1782 GLint w = 0; 1783 GLint h = 0; 1784 if (draw) { 1785 w = d->getWidth(); 1786 h = d->getHeight(); 1787 } 1788 ogles_surfaceport(gl, 0, 0); 1789 ogles_viewport(gl, 0, 0, w, h); 1790 ogles_scissor(gl, 0, 0, w, h); 1791 } 1792 if (d) { 1793 if (d->connect() == EGL_FALSE) { 1794 return EGL_FALSE; 1795 } 1796 d->ctx = ctx; 1797 d->bindDrawSurface(gl); 1798 } 1799 if (r) { 1800 // FIXME: lock/connect the read surface too 1801 r->ctx = ctx; 1802 r->bindReadSurface(gl); 1803 } 1804 } else { 1805 // if surfaces were bound to the context bound to this thread 1806 // mark then as unbound. 1807 if (current_ctx) { 1808 egl_context_t* c = egl_context_t::context(current_ctx); 1809 egl_surface_t* d = (egl_surface_t*)c->draw; 1810 egl_surface_t* r = (egl_surface_t*)c->read; 1811 if (d) { 1812 c->draw = 0; 1813 d->ctx = EGL_NO_CONTEXT; 1814 d->disconnect(); 1815 } 1816 if (r) { 1817 c->read = 0; 1818 r->ctx = EGL_NO_CONTEXT; 1819 // FIXME: unlock/disconnect the read surface too 1820 } 1821 } 1822 } 1823 return EGL_TRUE; 1824 } 1825 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1826} 1827 1828EGLContext eglGetCurrentContext(void) 1829{ 1830 // eglGetCurrentContext returns the current EGL rendering context, 1831 // as specified by eglMakeCurrent. If no context is current, 1832 // EGL_NO_CONTEXT is returned. 1833 return (EGLContext)getGlThreadSpecific(); 1834} 1835 1836EGLSurface eglGetCurrentSurface(EGLint readdraw) 1837{ 1838 // eglGetCurrentSurface returns the read or draw surface attached 1839 // to the current EGL rendering context, as specified by eglMakeCurrent. 1840 // If no context is current, EGL_NO_SURFACE is returned. 1841 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1842 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1843 egl_context_t* c = egl_context_t::context(ctx); 1844 if (readdraw == EGL_READ) { 1845 return c->read; 1846 } else if (readdraw == EGL_DRAW) { 1847 return c->draw; 1848 } 1849 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1850} 1851 1852EGLDisplay eglGetCurrentDisplay(void) 1853{ 1854 // eglGetCurrentDisplay returns the current EGL display connection 1855 // for the current EGL rendering context, as specified by eglMakeCurrent. 1856 // If no context is current, EGL_NO_DISPLAY is returned. 1857 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1858 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1859 egl_context_t* c = egl_context_t::context(ctx); 1860 return c->dpy; 1861} 1862 1863EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1864 EGLint attribute, EGLint *value) 1865{ 1866 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1867 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1868 egl_context_t* c = egl_context_t::context(ctx); 1869 switch (attribute) { 1870 case EGL_CONFIG_ID: 1871 // Returns the ID of the EGL frame buffer configuration with 1872 // respect to which the context was created 1873 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1874 } 1875 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1876} 1877 1878EGLBoolean eglWaitGL(void) 1879{ 1880 return EGL_TRUE; 1881} 1882 1883EGLBoolean eglWaitNative(EGLint engine) 1884{ 1885 return EGL_TRUE; 1886} 1887 1888EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1889{ 1890 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1891 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1892 1893 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1894 if (!d->isValid()) 1895 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1896 if (d->dpy != dpy) 1897 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1898 1899 // post the surface 1900 d->swapBuffers(); 1901 1902 // if it's bound to a context, update the buffer 1903 if (d->ctx != EGL_NO_CONTEXT) { 1904 d->bindDrawSurface((ogles_context_t*)d->ctx); 1905 // if this surface is also the read surface of the context 1906 // it is bound to, make sure to update the read buffer as well. 1907 // The EGL spec is a little unclear about this. 1908 egl_context_t* c = egl_context_t::context(d->ctx); 1909 if (c->read == draw) { 1910 d->bindReadSurface((ogles_context_t*)d->ctx); 1911 } 1912 } 1913 1914 return EGL_TRUE; 1915} 1916 1917EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1918 NativePixmapType target) 1919{ 1920 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1921 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1922 // TODO: eglCopyBuffers() 1923 return EGL_FALSE; 1924} 1925 1926EGLint eglGetError(void) 1927{ 1928 return getError(); 1929} 1930 1931const char* eglQueryString(EGLDisplay dpy, EGLint name) 1932{ 1933 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1934 return setError(EGL_BAD_DISPLAY, (const char*)0); 1935 1936 switch (name) { 1937 case EGL_VENDOR: 1938 return gVendorString; 1939 case EGL_VERSION: 1940 return gVersionString; 1941 case EGL_EXTENSIONS: 1942 return gExtensionsString; 1943 case EGL_CLIENT_APIS: 1944 return gClientApiString; 1945 } 1946 return setError(EGL_BAD_PARAMETER, (const char *)0); 1947} 1948 1949// ---------------------------------------------------------------------------- 1950// EGL 1.1 1951// ---------------------------------------------------------------------------- 1952 1953EGLBoolean eglSurfaceAttrib( 1954 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1955{ 1956 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1957 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1958 // TODO: eglSurfaceAttrib() 1959 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1960} 1961 1962EGLBoolean eglBindTexImage( 1963 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1964{ 1965 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1966 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1967 // TODO: eglBindTexImage() 1968 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1969} 1970 1971EGLBoolean eglReleaseTexImage( 1972 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1973{ 1974 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1975 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1976 // TODO: eglReleaseTexImage() 1977 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1978} 1979 1980EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1981{ 1982 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1983 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1984 // TODO: eglSwapInterval() 1985 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1986} 1987 1988// ---------------------------------------------------------------------------- 1989// EGL 1.2 1990// ---------------------------------------------------------------------------- 1991 1992EGLBoolean eglBindAPI(EGLenum api) 1993{ 1994 if (api != EGL_OPENGL_ES_API) 1995 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1996 return EGL_TRUE; 1997} 1998 1999EGLenum eglQueryAPI(void) 2000{ 2001 return EGL_OPENGL_ES_API; 2002} 2003 2004EGLBoolean eglWaitClient(void) 2005{ 2006 glFinish(); 2007 return EGL_TRUE; 2008} 2009 2010EGLBoolean eglReleaseThread(void) 2011{ 2012 // TODO: eglReleaseThread() 2013 return EGL_TRUE; 2014} 2015 2016EGLSurface eglCreatePbufferFromClientBuffer( 2017 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 2018 EGLConfig config, const EGLint *attrib_list) 2019{ 2020 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2021 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 2022 // TODO: eglCreatePbufferFromClientBuffer() 2023 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 2024} 2025 2026// ---------------------------------------------------------------------------- 2027// EGL_EGLEXT_VERSION 3 2028// ---------------------------------------------------------------------------- 2029 2030void (*eglGetProcAddress (const char *procname))() 2031{ 2032 extention_map_t const * const map = gExtentionMap; 2033 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 2034 if (!strcmp(procname, map[i].name)) { 2035 return map[i].address; 2036 } 2037 } 2038 return NULL; 2039} 2040 2041EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 2042 const EGLint *attrib_list) 2043{ 2044 EGLBoolean result = EGL_FALSE; 2045 return result; 2046} 2047 2048EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 2049{ 2050 EGLBoolean result = EGL_FALSE; 2051 return result; 2052} 2053 2054EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 2055 EGLClientBuffer buffer, const EGLint *attrib_list) 2056{ 2057 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2058 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 2059 } 2060 if (ctx != EGL_NO_CONTEXT) { 2061 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2062 } 2063 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2064 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2065 } 2066 2067 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 2068 2069 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2070 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2071 2072 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2073 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2074 2075 switch (native_buffer->format) { 2076 case HAL_PIXEL_FORMAT_RGBA_8888: 2077 case HAL_PIXEL_FORMAT_RGBX_8888: 2078 case HAL_PIXEL_FORMAT_RGB_888: 2079 case HAL_PIXEL_FORMAT_RGB_565: 2080 case HAL_PIXEL_FORMAT_BGRA_8888: 2081 case HAL_PIXEL_FORMAT_RGBA_5551: 2082 case HAL_PIXEL_FORMAT_RGBA_4444: 2083 break; 2084 default: 2085 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2086 } 2087 2088 native_buffer->common.incRef(&native_buffer->common); 2089 return (EGLImageKHR)native_buffer; 2090} 2091 2092EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2093{ 2094 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2095 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2096 } 2097 2098 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 2099 2100 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2101 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2102 2103 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2104 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2105 2106 native_buffer->common.decRef(&native_buffer->common); 2107 2108 return EGL_TRUE; 2109} 2110 2111// ---------------------------------------------------------------------------- 2112// ANDROID extensions 2113// ---------------------------------------------------------------------------- 2114 2115EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2116 EGLint left, EGLint top, EGLint width, EGLint height) 2117{ 2118 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2119 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2120 2121 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2122 if (!d->isValid()) 2123 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2124 if (d->dpy != dpy) 2125 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2126 2127 // post the surface 2128 d->setSwapRectangle(left, top, width, height); 2129 2130 return EGL_TRUE; 2131} 2132 2133EGLClientBuffer eglGetRenderBufferANDROID(EGLDisplay dpy, EGLSurface draw) 2134{ 2135 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2136 return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0); 2137 2138 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2139 if (!d->isValid()) 2140 return setError(EGL_BAD_SURFACE, (EGLClientBuffer)0); 2141 if (d->dpy != dpy) 2142 return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0); 2143 2144 // post the surface 2145 return d->getRenderBuffer(); 2146} 2147