egl.cpp revision bb0628d9debc5ddd5b1ca3311d6397bbe668c4ee
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->width; 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->width; 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 nativeWindow->dequeueBuffer(nativeWindow, &buffer); 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 } 615 616 return EGL_TRUE; 617} 618 619EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 620 EGLint l, EGLint t, EGLint w, EGLint h) 621{ 622 dirtyRegion = Rect(l, t, l+w, t+h); 623 return EGL_TRUE; 624} 625 626EGLClientBuffer egl_window_surface_v2_t::getRenderBuffer() const 627{ 628 return buffer; 629} 630 631EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 632{ 633 GGLSurface buffer; 634 buffer.version = sizeof(GGLSurface); 635 buffer.width = this->buffer->width; 636 buffer.height = this->buffer->height; 637 buffer.stride = this->buffer->stride; 638 buffer.data = (GGLubyte*)bits; 639 buffer.format = this->buffer->format; 640 gl->rasterizer.procs.colorBuffer(gl, &buffer); 641 if (depth.data != gl->rasterizer.state.buffers.depth.data) 642 gl->rasterizer.procs.depthBuffer(gl, &depth); 643 644 return EGL_TRUE; 645} 646EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 647{ 648 GGLSurface buffer; 649 buffer.version = sizeof(GGLSurface); 650 buffer.width = this->buffer->width; 651 buffer.height = this->buffer->height; 652 buffer.stride = this->buffer->stride; 653 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 654 buffer.format = this->buffer->format; 655 gl->rasterizer.procs.readBuffer(gl, &buffer); 656 return EGL_TRUE; 657} 658EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 659 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 660} 661EGLint egl_window_surface_v2_t::getVerticalResolution() const { 662 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 663} 664EGLint egl_window_surface_v2_t::getRefreshRate() const { 665 return (60 * EGL_DISPLAY_SCALING); // FIXME 666} 667EGLint egl_window_surface_v2_t::getSwapBehavior() const 668{ 669 /* 670 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 671 * the content of the swapped buffer. 672 * 673 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 674 * 675 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 676 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 677 * is, everything outside of this area is preserved. 678 * 679 * This implementation of EGL assumes the later case. 680 * 681 */ 682 683 return EGL_BUFFER_DESTROYED; 684} 685 686// ---------------------------------------------------------------------------- 687 688struct egl_pixmap_surface_t : public egl_surface_t 689{ 690 egl_pixmap_surface_t( 691 EGLDisplay dpy, EGLConfig config, 692 int32_t depthFormat, 693 egl_native_pixmap_t const * pixmap); 694 695 virtual ~egl_pixmap_surface_t() { } 696 697 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 698 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 699 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 700 virtual EGLint getWidth() const { return nativePixmap.width; } 701 virtual EGLint getHeight() const { return nativePixmap.height; } 702private: 703 egl_native_pixmap_t nativePixmap; 704}; 705 706egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 707 EGLConfig config, 708 int32_t depthFormat, 709 egl_native_pixmap_t const * pixmap) 710 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 711{ 712 if (depthFormat) { 713 depth.width = pixmap->width; 714 depth.height = pixmap->height; 715 depth.stride = depth.width; // use the width here 716 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 717 if (depth.data == 0) { 718 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 719 } 720 } 721} 722EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 723{ 724 GGLSurface buffer; 725 buffer.version = sizeof(GGLSurface); 726 buffer.width = nativePixmap.width; 727 buffer.height = nativePixmap.height; 728 buffer.stride = nativePixmap.stride; 729 buffer.data = nativePixmap.data; 730 buffer.format = nativePixmap.format; 731 732 gl->rasterizer.procs.colorBuffer(gl, &buffer); 733 if (depth.data != gl->rasterizer.state.buffers.depth.data) 734 gl->rasterizer.procs.depthBuffer(gl, &depth); 735 return EGL_TRUE; 736} 737EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 738{ 739 GGLSurface buffer; 740 buffer.version = sizeof(GGLSurface); 741 buffer.width = nativePixmap.width; 742 buffer.height = nativePixmap.height; 743 buffer.stride = nativePixmap.stride; 744 buffer.data = nativePixmap.data; 745 buffer.format = nativePixmap.format; 746 gl->rasterizer.procs.readBuffer(gl, &buffer); 747 return EGL_TRUE; 748} 749 750// ---------------------------------------------------------------------------- 751 752struct egl_pbuffer_surface_t : public egl_surface_t 753{ 754 egl_pbuffer_surface_t( 755 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 756 int32_t w, int32_t h, int32_t f); 757 758 virtual ~egl_pbuffer_surface_t(); 759 760 virtual bool initCheck() const { return pbuffer.data != 0; } 761 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 762 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 763 virtual EGLint getWidth() const { return pbuffer.width; } 764 virtual EGLint getHeight() const { return pbuffer.height; } 765private: 766 GGLSurface pbuffer; 767}; 768 769egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 770 EGLConfig config, int32_t depthFormat, 771 int32_t w, int32_t h, int32_t f) 772 : egl_surface_t(dpy, config, depthFormat) 773{ 774 size_t size = w*h; 775 switch (f) { 776 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 777 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 778 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 779 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break; 780 default: 781 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 782 pbuffer.data = 0; 783 break; 784 } 785 pbuffer.version = sizeof(GGLSurface); 786 pbuffer.width = w; 787 pbuffer.height = h; 788 pbuffer.stride = w; 789 pbuffer.data = (GGLubyte*)malloc(size); 790 pbuffer.format = f; 791 792 if (depthFormat) { 793 depth.width = pbuffer.width; 794 depth.height = pbuffer.height; 795 depth.stride = depth.width; // use the width here 796 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 797 if (depth.data == 0) { 798 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 799 return; 800 } 801 } 802} 803egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 804 free(pbuffer.data); 805} 806EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 807{ 808 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 809 if (depth.data != gl->rasterizer.state.buffers.depth.data) 810 gl->rasterizer.procs.depthBuffer(gl, &depth); 811 return EGL_TRUE; 812} 813EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 814{ 815 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 816 return EGL_TRUE; 817} 818 819// ---------------------------------------------------------------------------- 820 821struct config_pair_t { 822 GLint key; 823 GLint value; 824}; 825 826struct configs_t { 827 const config_pair_t* array; 828 int size; 829}; 830 831struct config_management_t { 832 GLint key; 833 bool (*match)(GLint reqValue, GLint confValue); 834 static bool atLeast(GLint reqValue, GLint confValue) { 835 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 836 } 837 static bool exact(GLint reqValue, GLint confValue) { 838 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 839 } 840 static bool mask(GLint reqValue, GLint confValue) { 841 return (confValue & reqValue) == reqValue; 842 } 843}; 844 845// ---------------------------------------------------------------------------- 846 847#define VERSION_MAJOR 1 848#define VERSION_MINOR 2 849static char const * const gVendorString = "Google Inc."; 850static char const * const gVersionString = "1.2 Android Driver 1.1.0"; 851static char const * const gClientApiString = "OpenGL ES"; 852static char const * const gExtensionsString = 853 "EGL_KHR_image_base " 854 // "KHR_image_pixmap " 855 "EGL_ANDROID_image_native_buffer " 856 "EGL_ANDROID_swap_rectangle " 857 "EGL_ANDROID_get_render_buffer " 858 ; 859 860// ---------------------------------------------------------------------------- 861 862struct extention_map_t { 863 const char * const name; 864 __eglMustCastToProperFunctionPointerType address; 865}; 866 867static const extention_map_t gExtentionMap[] = { 868 { "glDrawTexsOES", 869 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 870 { "glDrawTexiOES", 871 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 872 { "glDrawTexfOES", 873 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 874 { "glDrawTexxOES", 875 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 876 { "glDrawTexsvOES", 877 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 878 { "glDrawTexivOES", 879 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 880 { "glDrawTexfvOES", 881 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 882 { "glDrawTexxvOES", 883 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 884 { "glQueryMatrixxOES", 885 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 886 { "glEGLImageTargetTexture2DOES", 887 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 888 { "glEGLImageTargetRenderbufferStorageOES", 889 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 890 { "glClipPlanef", 891 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 892 { "glClipPlanex", 893 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 894 { "glBindBuffer", 895 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 896 { "glBufferData", 897 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 898 { "glBufferSubData", 899 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 900 { "glDeleteBuffers", 901 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 902 { "glGenBuffers", 903 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 904 { "eglCreateImageKHR", 905 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 906 { "eglDestroyImageKHR", 907 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 908 { "eglSetSwapRectangleANDROID", 909 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 910 { "eglGetRenderBufferANDROID", 911 (__eglMustCastToProperFunctionPointerType)&eglGetRenderBufferANDROID }, 912}; 913 914/* 915 * In the lists below, attributes names MUST be sorted. 916 * Additionally, all configs must be sorted according to 917 * the EGL specification. 918 */ 919 920static config_pair_t const config_base_attribute_list[] = { 921 { EGL_STENCIL_SIZE, 0 }, 922 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 923 { EGL_LEVEL, 0 }, 924 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 925 { EGL_MAX_PBUFFER_PIXELS, 926 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 927 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 928 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 929 { EGL_NATIVE_VISUAL_ID, 0 }, 930 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 931 { EGL_SAMPLES, 0 }, 932 { EGL_SAMPLE_BUFFERS, 0 }, 933 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 934 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 935 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 936 { EGL_TRANSPARENT_RED_VALUE, 0 }, 937 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 938 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 939 { EGL_MIN_SWAP_INTERVAL, 1 }, 940 { EGL_MAX_SWAP_INTERVAL, 1 }, 941 { EGL_LUMINANCE_SIZE, 0 }, 942 { EGL_ALPHA_MASK_SIZE, 0 }, 943 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER }, 944 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 945 { EGL_CONFORMANT, 0 } 946}; 947 948// These configs can override the base attribute list 949// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 950 951// 565 configs 952static config_pair_t const config_0_attribute_list[] = { 953 { EGL_BUFFER_SIZE, 16 }, 954 { EGL_ALPHA_SIZE, 0 }, 955 { EGL_BLUE_SIZE, 5 }, 956 { EGL_GREEN_SIZE, 6 }, 957 { EGL_RED_SIZE, 5 }, 958 { EGL_DEPTH_SIZE, 0 }, 959 { EGL_CONFIG_ID, 0 }, 960 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 961}; 962 963static config_pair_t const config_1_attribute_list[] = { 964 { EGL_BUFFER_SIZE, 16 }, 965 { EGL_ALPHA_SIZE, 0 }, 966 { EGL_BLUE_SIZE, 5 }, 967 { EGL_GREEN_SIZE, 6 }, 968 { EGL_RED_SIZE, 5 }, 969 { EGL_DEPTH_SIZE, 16 }, 970 { EGL_CONFIG_ID, 1 }, 971 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 972}; 973 974// RGB 888 configs 975static config_pair_t const config_2_attribute_list[] = { 976 { EGL_BUFFER_SIZE, 32 }, 977 { EGL_ALPHA_SIZE, 0 }, 978 { EGL_BLUE_SIZE, 8 }, 979 { EGL_GREEN_SIZE, 8 }, 980 { EGL_RED_SIZE, 8 }, 981 { EGL_DEPTH_SIZE, 0 }, 982 { EGL_CONFIG_ID, 6 }, 983 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 984}; 985 986static config_pair_t const config_3_attribute_list[] = { 987 { EGL_BUFFER_SIZE, 32 }, 988 { EGL_ALPHA_SIZE, 0 }, 989 { EGL_BLUE_SIZE, 8 }, 990 { EGL_GREEN_SIZE, 8 }, 991 { EGL_RED_SIZE, 8 }, 992 { EGL_DEPTH_SIZE, 16 }, 993 { EGL_CONFIG_ID, 7 }, 994 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 995}; 996 997// 8888 configs 998static config_pair_t const config_4_attribute_list[] = { 999 { EGL_BUFFER_SIZE, 32 }, 1000 { EGL_ALPHA_SIZE, 8 }, 1001 { EGL_BLUE_SIZE, 8 }, 1002 { EGL_GREEN_SIZE, 8 }, 1003 { EGL_RED_SIZE, 8 }, 1004 { EGL_DEPTH_SIZE, 0 }, 1005 { EGL_CONFIG_ID, 2 }, 1006 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1007}; 1008 1009static config_pair_t const config_5_attribute_list[] = { 1010 { EGL_BUFFER_SIZE, 32 }, 1011 { EGL_ALPHA_SIZE, 8 }, 1012 { EGL_BLUE_SIZE, 8 }, 1013 { EGL_GREEN_SIZE, 8 }, 1014 { EGL_RED_SIZE, 8 }, 1015 { EGL_DEPTH_SIZE, 16 }, 1016 { EGL_CONFIG_ID, 3 }, 1017 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1018}; 1019 1020// A8 configs 1021static config_pair_t const config_6_attribute_list[] = { 1022 { EGL_BUFFER_SIZE, 8 }, 1023 { EGL_ALPHA_SIZE, 8 }, 1024 { EGL_BLUE_SIZE, 0 }, 1025 { EGL_GREEN_SIZE, 0 }, 1026 { EGL_RED_SIZE, 0 }, 1027 { EGL_DEPTH_SIZE, 0 }, 1028 { EGL_CONFIG_ID, 4 }, 1029 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1030}; 1031 1032static config_pair_t const config_7_attribute_list[] = { 1033 { EGL_BUFFER_SIZE, 8 }, 1034 { EGL_ALPHA_SIZE, 8 }, 1035 { EGL_BLUE_SIZE, 0 }, 1036 { EGL_GREEN_SIZE, 0 }, 1037 { EGL_RED_SIZE, 0 }, 1038 { EGL_DEPTH_SIZE, 16 }, 1039 { EGL_CONFIG_ID, 5 }, 1040 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1041}; 1042 1043static configs_t const gConfigs[] = { 1044 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 1045 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 1046 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 1047 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 1048 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 1049 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 1050 { config_6_attribute_list, NELEM(config_6_attribute_list) }, 1051 { config_7_attribute_list, NELEM(config_7_attribute_list) }, 1052}; 1053 1054static config_management_t const gConfigManagement[] = { 1055 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 1056 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1057 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1058 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1059 { EGL_RED_SIZE, config_management_t::atLeast }, 1060 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1061 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1062 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1063 { EGL_CONFIG_ID, config_management_t::exact }, 1064 { EGL_LEVEL, config_management_t::exact }, 1065 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::exact }, 1066 { EGL_MAX_PBUFFER_PIXELS, config_management_t::exact }, 1067 { EGL_MAX_PBUFFER_WIDTH, config_management_t::exact }, 1068 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1069 { EGL_NATIVE_VISUAL_ID, config_management_t::exact }, 1070 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1071 { EGL_SAMPLES, config_management_t::exact }, 1072 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1073 { EGL_SURFACE_TYPE, config_management_t::mask }, 1074 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1075 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1076 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1077 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1078 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1079 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1080 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1081 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1082 { EGL_LUMINANCE_SIZE, config_management_t::atLeast }, 1083 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast }, 1084 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact }, 1085 { EGL_RENDERABLE_TYPE, config_management_t::mask }, 1086 { EGL_CONFORMANT, config_management_t::mask } 1087}; 1088 1089 1090static config_pair_t const config_defaults[] = { 1091 // attributes that are not specified are simply ignored, if a particular 1092 // one needs not be ignored, it must be specified here, eg: 1093 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1094}; 1095 1096// ---------------------------------------------------------------------------- 1097 1098static status_t getConfigFormatInfo(EGLint configID, 1099 int32_t& pixelFormat, int32_t& depthFormat) 1100{ 1101 switch(configID) { 1102 case 0: 1103 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1104 depthFormat = 0; 1105 break; 1106 case 1: 1107 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1108 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1109 break; 1110 case 2: 1111 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1112 depthFormat = 0; 1113 break; 1114 case 3: 1115 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1116 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1117 break; 1118 case 4: 1119 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1120 depthFormat = 0; 1121 break; 1122 case 5: 1123 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1124 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1125 break; 1126 case 6: 1127 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1128 depthFormat = 0; 1129 break; 1130 case 7: 1131 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1132 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1133 break; 1134 default: 1135 return NAME_NOT_FOUND; 1136 } 1137 return NO_ERROR; 1138} 1139 1140// ---------------------------------------------------------------------------- 1141 1142template<typename T> 1143static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1144{ 1145 while (first <= last) { 1146 int mid = (first + last) / 2; 1147 if (key > sortedArray[mid].key) { 1148 first = mid + 1; 1149 } else if (key < sortedArray[mid].key) { 1150 last = mid - 1; 1151 } else { 1152 return mid; 1153 } 1154 } 1155 return -1; 1156} 1157 1158static int isAttributeMatching(int i, EGLint attr, EGLint val) 1159{ 1160 // look for the attribute in all of our configs 1161 config_pair_t const* configFound = gConfigs[i].array; 1162 int index = binarySearch<config_pair_t>( 1163 gConfigs[i].array, 1164 0, gConfigs[i].size-1, 1165 attr); 1166 if (index < 0) { 1167 configFound = config_base_attribute_list; 1168 index = binarySearch<config_pair_t>( 1169 config_base_attribute_list, 1170 0, NELEM(config_base_attribute_list)-1, 1171 attr); 1172 } 1173 if (index >= 0) { 1174 // attribute found, check if this config could match 1175 int cfgMgtIndex = binarySearch<config_management_t>( 1176 gConfigManagement, 1177 0, NELEM(gConfigManagement)-1, 1178 attr); 1179 if (cfgMgtIndex >= 0) { 1180 bool match = gConfigManagement[cfgMgtIndex].match( 1181 val, configFound[index].value); 1182 if (match) { 1183 // this config matches 1184 return 1; 1185 } 1186 } else { 1187 // attribute not found. this should NEVER happen. 1188 } 1189 } else { 1190 // error, this attribute doesn't exist 1191 } 1192 return 0; 1193} 1194 1195static int makeCurrent(ogles_context_t* gl) 1196{ 1197 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1198 if (gl) { 1199 egl_context_t* c = egl_context_t::context(gl); 1200 if (c->flags & egl_context_t::IS_CURRENT) { 1201 if (current != gl) { 1202 // it is an error to set a context current, if it's already 1203 // current to another thread 1204 return -1; 1205 } 1206 } else { 1207 if (current) { 1208 // mark the current context as not current, and flush 1209 glFlush(); 1210 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1211 } 1212 } 1213 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1214 // The context is not current, make it current! 1215 setGlThreadSpecific(gl); 1216 c->flags |= egl_context_t::IS_CURRENT; 1217 } 1218 } else { 1219 if (current) { 1220 // mark the current context as not current, and flush 1221 glFlush(); 1222 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1223 } 1224 // this thread has no context attached to it 1225 setGlThreadSpecific(0); 1226 } 1227 return 0; 1228} 1229 1230static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1231 EGLint attribute, EGLint *value) 1232{ 1233 size_t numConfigs = NELEM(gConfigs); 1234 int index = (int)config; 1235 if (uint32_t(index) >= numConfigs) 1236 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1237 1238 int attrIndex; 1239 attrIndex = binarySearch<config_pair_t>( 1240 gConfigs[index].array, 1241 0, gConfigs[index].size-1, 1242 attribute); 1243 if (attrIndex>=0) { 1244 *value = gConfigs[index].array[attrIndex].value; 1245 return EGL_TRUE; 1246 } 1247 1248 attrIndex = binarySearch<config_pair_t>( 1249 config_base_attribute_list, 1250 0, NELEM(config_base_attribute_list)-1, 1251 attribute); 1252 if (attrIndex>=0) { 1253 *value = config_base_attribute_list[attrIndex].value; 1254 return EGL_TRUE; 1255 } 1256 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1257} 1258 1259static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1260 NativeWindowType window, const EGLint *attrib_list) 1261{ 1262 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1263 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1264 if (window == 0) 1265 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1266 1267 EGLint surfaceType; 1268 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1269 return EGL_FALSE; 1270 1271 if (!(surfaceType & EGL_WINDOW_BIT)) 1272 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1273 1274 if (static_cast<ANativeWindow*>(window)->common.magic != 1275 ANDROID_NATIVE_WINDOW_MAGIC) { 1276 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1277 } 1278 1279 EGLint configID; 1280 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1281 return EGL_FALSE; 1282 1283 int32_t depthFormat; 1284 int32_t pixelFormat; 1285 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1286 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1287 } 1288 1289 // FIXME: we don't have access to the pixelFormat here just yet. 1290 // (it's possible that the surface is not fully initialized) 1291 // maybe this should be done after the page-flip 1292 //if (EGLint(info.format) != pixelFormat) 1293 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1294 1295 egl_surface_t* surface; 1296 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1297 static_cast<ANativeWindow*>(window)); 1298 1299 if (!surface->initCheck()) { 1300 // there was a problem in the ctor, the error 1301 // flag has been set. 1302 delete surface; 1303 surface = 0; 1304 } 1305 return surface; 1306} 1307 1308static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1309 NativePixmapType pixmap, const EGLint *attrib_list) 1310{ 1311 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1312 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1313 if (pixmap == 0) 1314 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1315 1316 EGLint surfaceType; 1317 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1318 return EGL_FALSE; 1319 1320 if (!(surfaceType & EGL_PIXMAP_BIT)) 1321 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1322 1323 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1324 sizeof(egl_native_pixmap_t)) { 1325 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1326 } 1327 1328 EGLint configID; 1329 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1330 return EGL_FALSE; 1331 1332 int32_t depthFormat; 1333 int32_t pixelFormat; 1334 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1335 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1336 } 1337 1338 if (pixmap->format != pixelFormat) 1339 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1340 1341 egl_surface_t* surface = 1342 new egl_pixmap_surface_t(dpy, config, depthFormat, 1343 static_cast<egl_native_pixmap_t*>(pixmap)); 1344 1345 if (!surface->initCheck()) { 1346 // there was a problem in the ctor, the error 1347 // flag has been set. 1348 delete surface; 1349 surface = 0; 1350 } 1351 return surface; 1352} 1353 1354static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1355 const EGLint *attrib_list) 1356{ 1357 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1358 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1359 1360 EGLint surfaceType; 1361 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1362 return EGL_FALSE; 1363 1364 if (!(surfaceType & EGL_PBUFFER_BIT)) 1365 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1366 1367 EGLint configID; 1368 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1369 return EGL_FALSE; 1370 1371 int32_t depthFormat; 1372 int32_t pixelFormat; 1373 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1374 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1375 } 1376 1377 int32_t w = 0; 1378 int32_t h = 0; 1379 while (attrib_list[0]) { 1380 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1381 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1382 attrib_list+=2; 1383 } 1384 1385 egl_surface_t* surface = 1386 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1387 1388 if (!surface->initCheck()) { 1389 // there was a problem in the ctor, the error 1390 // flag has been set. 1391 delete surface; 1392 surface = 0; 1393 } 1394 return surface; 1395} 1396 1397// ---------------------------------------------------------------------------- 1398}; // namespace android 1399// ---------------------------------------------------------------------------- 1400 1401using namespace android; 1402 1403// ---------------------------------------------------------------------------- 1404// Initialization 1405// ---------------------------------------------------------------------------- 1406 1407EGLDisplay eglGetDisplay(NativeDisplayType display) 1408{ 1409#ifndef HAVE_ANDROID_OS 1410 // this just needs to be done once 1411 if (gGLKey == -1) { 1412 pthread_mutex_lock(&gInitMutex); 1413 if (gGLKey == -1) 1414 pthread_key_create(&gGLKey, NULL); 1415 pthread_mutex_unlock(&gInitMutex); 1416 } 1417#endif 1418 if (display == EGL_DEFAULT_DISPLAY) { 1419 EGLDisplay dpy = (EGLDisplay)1; 1420 egl_display_t& d = egl_display_t::get_display(dpy); 1421 d.type = display; 1422 return dpy; 1423 } 1424 return EGL_NO_DISPLAY; 1425} 1426 1427EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1428{ 1429 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1430 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1431 1432 EGLBoolean res = EGL_TRUE; 1433 egl_display_t& d = egl_display_t::get_display(dpy); 1434 1435 if (android_atomic_inc(&d.initialized) == 0) { 1436 // initialize stuff here if needed 1437 //pthread_mutex_lock(&gInitMutex); 1438 //pthread_mutex_unlock(&gInitMutex); 1439 } 1440 1441 if (res == EGL_TRUE) { 1442 if (major != NULL) *major = VERSION_MAJOR; 1443 if (minor != NULL) *minor = VERSION_MINOR; 1444 } 1445 return res; 1446} 1447 1448EGLBoolean eglTerminate(EGLDisplay dpy) 1449{ 1450 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1451 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1452 1453 EGLBoolean res = EGL_TRUE; 1454 egl_display_t& d = egl_display_t::get_display(dpy); 1455 if (android_atomic_dec(&d.initialized) == 1) { 1456 // TODO: destroy all resources (surfaces, contexts, etc...) 1457 //pthread_mutex_lock(&gInitMutex); 1458 //pthread_mutex_unlock(&gInitMutex); 1459 } 1460 return res; 1461} 1462 1463// ---------------------------------------------------------------------------- 1464// configuration 1465// ---------------------------------------------------------------------------- 1466 1467EGLBoolean eglGetConfigs( EGLDisplay dpy, 1468 EGLConfig *configs, 1469 EGLint config_size, EGLint *num_config) 1470{ 1471 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1472 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1473 1474 GLint numConfigs = NELEM(gConfigs); 1475 if (!configs) { 1476 *num_config = numConfigs; 1477 return EGL_TRUE; 1478 } 1479 GLint i; 1480 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1481 *configs++ = (EGLConfig)i; 1482 } 1483 *num_config = i; 1484 return EGL_TRUE; 1485} 1486 1487EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1488 EGLConfig *configs, EGLint config_size, 1489 EGLint *num_config) 1490{ 1491 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1492 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1493 1494 if (ggl_unlikely(num_config==0)) { 1495 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1496 } 1497 1498 if (ggl_unlikely(attrib_list==0)) { 1499 /* 1500 * A NULL attrib_list should be treated as though it was an empty 1501 * one (terminated with EGL_NONE) as defined in 1502 * section 3.4.1 "Querying Configurations" in the EGL specification. 1503 */ 1504 static const EGLint dummy = EGL_NONE; 1505 attrib_list = &dummy; 1506 } 1507 1508 int numAttributes = 0; 1509 int numConfigs = NELEM(gConfigs); 1510 uint32_t possibleMatch = (1<<numConfigs)-1; 1511 while(possibleMatch && *attrib_list != EGL_NONE) { 1512 numAttributes++; 1513 EGLint attr = *attrib_list++; 1514 EGLint val = *attrib_list++; 1515 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1516 if (!(possibleMatch & (1<<i))) 1517 continue; 1518 if (isAttributeMatching(i, attr, val) == 0) { 1519 possibleMatch &= ~(1<<i); 1520 } 1521 } 1522 } 1523 1524 // now, handle the attributes which have a useful default value 1525 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) { 1526 // see if this attribute was specified, if not, apply its 1527 // default value 1528 if (binarySearch<config_pair_t>( 1529 (config_pair_t const*)attrib_list, 1530 0, numAttributes-1, 1531 config_defaults[j].key) < 0) 1532 { 1533 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1534 if (!(possibleMatch & (1<<i))) 1535 continue; 1536 if (isAttributeMatching(i, 1537 config_defaults[j].key, 1538 config_defaults[j].value) == 0) 1539 { 1540 possibleMatch &= ~(1<<i); 1541 } 1542 } 1543 } 1544 } 1545 1546 // return the configurations found 1547 int n=0; 1548 if (possibleMatch) { 1549 if (configs) { 1550 for (int i=0 ; config_size && i<numConfigs ; i++) { 1551 if (possibleMatch & (1<<i)) { 1552 *configs++ = (EGLConfig)i; 1553 config_size--; 1554 n++; 1555 } 1556 } 1557 } else { 1558 for (int i=0 ; i<numConfigs ; i++) { 1559 if (possibleMatch & (1<<i)) { 1560 n++; 1561 } 1562 } 1563 } 1564 } 1565 *num_config = n; 1566 return EGL_TRUE; 1567} 1568 1569EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1570 EGLint attribute, EGLint *value) 1571{ 1572 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1573 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1574 1575 return getConfigAttrib(dpy, config, attribute, value); 1576} 1577 1578// ---------------------------------------------------------------------------- 1579// surfaces 1580// ---------------------------------------------------------------------------- 1581 1582EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1583 NativeWindowType window, 1584 const EGLint *attrib_list) 1585{ 1586 return createWindowSurface(dpy, config, window, attrib_list); 1587} 1588 1589EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1590 NativePixmapType pixmap, 1591 const EGLint *attrib_list) 1592{ 1593 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1594} 1595 1596EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1597 const EGLint *attrib_list) 1598{ 1599 return createPbufferSurface(dpy, config, attrib_list); 1600} 1601 1602EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1603{ 1604 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1605 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1606 if (eglSurface != EGL_NO_SURFACE) { 1607 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1608 if (!surface->isValid()) 1609 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1610 if (surface->dpy != dpy) 1611 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1612 if (surface->ctx) { 1613 // FIXME: this surface is current check what the spec says 1614 surface->disconnect(); 1615 surface->ctx = 0; 1616 } 1617 delete surface; 1618 } 1619 return EGL_TRUE; 1620} 1621 1622EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1623 EGLint attribute, EGLint *value) 1624{ 1625 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1626 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1627 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1628 if (!surface->isValid()) 1629 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1630 if (surface->dpy != dpy) 1631 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1632 1633 EGLBoolean ret = EGL_TRUE; 1634 switch (attribute) { 1635 case EGL_CONFIG_ID: 1636 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1637 break; 1638 case EGL_WIDTH: 1639 *value = surface->getWidth(); 1640 break; 1641 case EGL_HEIGHT: 1642 *value = surface->getHeight(); 1643 break; 1644 case EGL_LARGEST_PBUFFER: 1645 // not modified for a window or pixmap surface 1646 break; 1647 case EGL_TEXTURE_FORMAT: 1648 *value = EGL_NO_TEXTURE; 1649 break; 1650 case EGL_TEXTURE_TARGET: 1651 *value = EGL_NO_TEXTURE; 1652 break; 1653 case EGL_MIPMAP_TEXTURE: 1654 *value = EGL_FALSE; 1655 break; 1656 case EGL_MIPMAP_LEVEL: 1657 *value = 0; 1658 break; 1659 case EGL_RENDER_BUFFER: 1660 // TODO: return the real RENDER_BUFFER here 1661 *value = EGL_BACK_BUFFER; 1662 break; 1663 case EGL_HORIZONTAL_RESOLUTION: 1664 // pixel/mm * EGL_DISPLAY_SCALING 1665 *value = surface->getHorizontalResolution(); 1666 break; 1667 case EGL_VERTICAL_RESOLUTION: 1668 // pixel/mm * EGL_DISPLAY_SCALING 1669 *value = surface->getVerticalResolution(); 1670 break; 1671 case EGL_PIXEL_ASPECT_RATIO: { 1672 // w/h * EGL_DISPLAY_SCALING 1673 int wr = surface->getHorizontalResolution(); 1674 int hr = surface->getVerticalResolution(); 1675 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1676 } break; 1677 case EGL_SWAP_BEHAVIOR: 1678 *value = surface->getSwapBehavior(); 1679 break; 1680 default: 1681 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1682 } 1683 return ret; 1684} 1685 1686EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1687 EGLContext share_list, const EGLint *attrib_list) 1688{ 1689 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1690 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1691 1692 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1693 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1694 1695 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1696 c->flags = egl_context_t::NEVER_CURRENT; 1697 c->dpy = dpy; 1698 c->config = config; 1699 c->read = 0; 1700 c->draw = 0; 1701 return (EGLContext)gl; 1702} 1703 1704EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1705{ 1706 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1707 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1708 egl_context_t* c = egl_context_t::context(ctx); 1709 if (c->flags & egl_context_t::IS_CURRENT) 1710 setGlThreadSpecific(0); 1711 ogles_uninit((ogles_context_t*)ctx); 1712 return EGL_TRUE; 1713} 1714 1715EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1716 EGLSurface read, EGLContext ctx) 1717{ 1718 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1719 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1720 if (draw) { 1721 egl_surface_t* s = (egl_surface_t*)draw; 1722 if (!s->isValid()) 1723 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1724 if (s->dpy != dpy) 1725 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1726 // TODO: check that draw is compatible with the context 1727 } 1728 if (read && read!=draw) { 1729 egl_surface_t* s = (egl_surface_t*)read; 1730 if (!s->isValid()) 1731 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1732 if (s->dpy != dpy) 1733 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1734 // TODO: check that read is compatible with the context 1735 } 1736 1737 EGLContext current_ctx = EGL_NO_CONTEXT; 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 ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1743 return setError(EGL_BAD_MATCH, EGL_FALSE); 1744 1745 if (ctx == EGL_NO_CONTEXT) { 1746 // if we're detaching, we need the current context 1747 current_ctx = (EGLContext)getGlThreadSpecific(); 1748 } else { 1749 egl_context_t* c = egl_context_t::context(ctx); 1750 egl_surface_t* d = (egl_surface_t*)draw; 1751 egl_surface_t* r = (egl_surface_t*)read; 1752 if ((d && d->ctx && d->ctx != ctx) || 1753 (r && r->ctx && r->ctx != ctx)) { 1754 // one of the surface is bound to a context in another thread 1755 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1756 } 1757 } 1758 1759 ogles_context_t* gl = (ogles_context_t*)ctx; 1760 if (makeCurrent(gl) == 0) { 1761 if (ctx) { 1762 egl_context_t* c = egl_context_t::context(ctx); 1763 egl_surface_t* d = (egl_surface_t*)draw; 1764 egl_surface_t* r = (egl_surface_t*)read; 1765 1766 if (c->draw) { 1767 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1768 s->disconnect(); 1769 } 1770 if (c->read) { 1771 // FIXME: unlock/disconnect the read surface too 1772 } 1773 1774 c->draw = draw; 1775 c->read = read; 1776 1777 if (c->flags & egl_context_t::NEVER_CURRENT) { 1778 c->flags &= ~egl_context_t::NEVER_CURRENT; 1779 GLint w = 0; 1780 GLint h = 0; 1781 if (draw) { 1782 w = d->getWidth(); 1783 h = d->getHeight(); 1784 } 1785 ogles_surfaceport(gl, 0, 0); 1786 ogles_viewport(gl, 0, 0, w, h); 1787 ogles_scissor(gl, 0, 0, w, h); 1788 } 1789 if (d) { 1790 if (d->connect() == EGL_FALSE) { 1791 return EGL_FALSE; 1792 } 1793 d->ctx = ctx; 1794 d->bindDrawSurface(gl); 1795 } 1796 if (r) { 1797 // FIXME: lock/connect the read surface too 1798 r->ctx = ctx; 1799 r->bindReadSurface(gl); 1800 } 1801 } else { 1802 // if surfaces were bound to the context bound to this thread 1803 // mark then as unbound. 1804 if (current_ctx) { 1805 egl_context_t* c = egl_context_t::context(current_ctx); 1806 egl_surface_t* d = (egl_surface_t*)c->draw; 1807 egl_surface_t* r = (egl_surface_t*)c->read; 1808 if (d) { 1809 c->draw = 0; 1810 d->ctx = EGL_NO_CONTEXT; 1811 d->disconnect(); 1812 } 1813 if (r) { 1814 c->read = 0; 1815 r->ctx = EGL_NO_CONTEXT; 1816 // FIXME: unlock/disconnect the read surface too 1817 } 1818 } 1819 } 1820 return EGL_TRUE; 1821 } 1822 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1823} 1824 1825EGLContext eglGetCurrentContext(void) 1826{ 1827 // eglGetCurrentContext returns the current EGL rendering context, 1828 // as specified by eglMakeCurrent. If no context is current, 1829 // EGL_NO_CONTEXT is returned. 1830 return (EGLContext)getGlThreadSpecific(); 1831} 1832 1833EGLSurface eglGetCurrentSurface(EGLint readdraw) 1834{ 1835 // eglGetCurrentSurface returns the read or draw surface attached 1836 // to the current EGL rendering context, as specified by eglMakeCurrent. 1837 // If no context is current, EGL_NO_SURFACE is returned. 1838 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1839 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1840 egl_context_t* c = egl_context_t::context(ctx); 1841 if (readdraw == EGL_READ) { 1842 return c->read; 1843 } else if (readdraw == EGL_DRAW) { 1844 return c->draw; 1845 } 1846 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1847} 1848 1849EGLDisplay eglGetCurrentDisplay(void) 1850{ 1851 // eglGetCurrentDisplay returns the current EGL display connection 1852 // for the current EGL rendering context, as specified by eglMakeCurrent. 1853 // If no context is current, EGL_NO_DISPLAY is returned. 1854 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1855 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1856 egl_context_t* c = egl_context_t::context(ctx); 1857 return c->dpy; 1858} 1859 1860EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1861 EGLint attribute, EGLint *value) 1862{ 1863 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1864 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1865 egl_context_t* c = egl_context_t::context(ctx); 1866 switch (attribute) { 1867 case EGL_CONFIG_ID: 1868 // Returns the ID of the EGL frame buffer configuration with 1869 // respect to which the context was created 1870 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1871 } 1872 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1873} 1874 1875EGLBoolean eglWaitGL(void) 1876{ 1877 return EGL_TRUE; 1878} 1879 1880EGLBoolean eglWaitNative(EGLint engine) 1881{ 1882 return EGL_TRUE; 1883} 1884 1885EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1886{ 1887 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1888 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1889 1890 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1891 if (!d->isValid()) 1892 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1893 if (d->dpy != dpy) 1894 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1895 1896 // post the surface 1897 d->swapBuffers(); 1898 1899 // if it's bound to a context, update the buffer 1900 if (d->ctx != EGL_NO_CONTEXT) { 1901 d->bindDrawSurface((ogles_context_t*)d->ctx); 1902 // if this surface is also the read surface of the context 1903 // it is bound to, make sure to update the read buffer as well. 1904 // The EGL spec is a little unclear about this. 1905 egl_context_t* c = egl_context_t::context(d->ctx); 1906 if (c->read == draw) { 1907 d->bindReadSurface((ogles_context_t*)d->ctx); 1908 } 1909 } 1910 1911 return EGL_TRUE; 1912} 1913 1914EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1915 NativePixmapType target) 1916{ 1917 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1918 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1919 // TODO: eglCopyBuffers() 1920 return EGL_FALSE; 1921} 1922 1923EGLint eglGetError(void) 1924{ 1925 return getError(); 1926} 1927 1928const char* eglQueryString(EGLDisplay dpy, EGLint name) 1929{ 1930 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1931 return setError(EGL_BAD_DISPLAY, (const char*)0); 1932 1933 switch (name) { 1934 case EGL_VENDOR: 1935 return gVendorString; 1936 case EGL_VERSION: 1937 return gVersionString; 1938 case EGL_EXTENSIONS: 1939 return gExtensionsString; 1940 case EGL_CLIENT_APIS: 1941 return gClientApiString; 1942 } 1943 return setError(EGL_BAD_PARAMETER, (const char *)0); 1944} 1945 1946// ---------------------------------------------------------------------------- 1947// EGL 1.1 1948// ---------------------------------------------------------------------------- 1949 1950EGLBoolean eglSurfaceAttrib( 1951 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1952{ 1953 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1954 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1955 // TODO: eglSurfaceAttrib() 1956 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1957} 1958 1959EGLBoolean eglBindTexImage( 1960 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1961{ 1962 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1963 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1964 // TODO: eglBindTexImage() 1965 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1966} 1967 1968EGLBoolean eglReleaseTexImage( 1969 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1970{ 1971 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1972 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1973 // TODO: eglReleaseTexImage() 1974 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1975} 1976 1977EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1978{ 1979 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1980 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1981 // TODO: eglSwapInterval() 1982 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1983} 1984 1985// ---------------------------------------------------------------------------- 1986// EGL 1.2 1987// ---------------------------------------------------------------------------- 1988 1989EGLBoolean eglBindAPI(EGLenum api) 1990{ 1991 if (api != EGL_OPENGL_ES_API) 1992 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1993 return EGL_TRUE; 1994} 1995 1996EGLenum eglQueryAPI(void) 1997{ 1998 return EGL_OPENGL_ES_API; 1999} 2000 2001EGLBoolean eglWaitClient(void) 2002{ 2003 glFinish(); 2004 return EGL_TRUE; 2005} 2006 2007EGLBoolean eglReleaseThread(void) 2008{ 2009 // TODO: eglReleaseThread() 2010 return EGL_TRUE; 2011} 2012 2013EGLSurface eglCreatePbufferFromClientBuffer( 2014 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 2015 EGLConfig config, const EGLint *attrib_list) 2016{ 2017 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2018 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 2019 // TODO: eglCreatePbufferFromClientBuffer() 2020 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 2021} 2022 2023// ---------------------------------------------------------------------------- 2024// EGL_EGLEXT_VERSION 3 2025// ---------------------------------------------------------------------------- 2026 2027void (*eglGetProcAddress (const char *procname))() 2028{ 2029 extention_map_t const * const map = gExtentionMap; 2030 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 2031 if (!strcmp(procname, map[i].name)) { 2032 return map[i].address; 2033 } 2034 } 2035 return NULL; 2036} 2037 2038EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 2039 const EGLint *attrib_list) 2040{ 2041 EGLBoolean result = EGL_FALSE; 2042 return result; 2043} 2044 2045EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 2046{ 2047 EGLBoolean result = EGL_FALSE; 2048 return result; 2049} 2050 2051EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 2052 EGLClientBuffer buffer, const EGLint *attrib_list) 2053{ 2054 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2055 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 2056 } 2057 if (ctx != EGL_NO_CONTEXT) { 2058 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2059 } 2060 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2061 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2062 } 2063 2064 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 2065 2066 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2067 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2068 2069 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2070 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2071 2072 switch (native_buffer->format) { 2073 case HAL_PIXEL_FORMAT_RGBA_8888: 2074 case HAL_PIXEL_FORMAT_RGBX_8888: 2075 case HAL_PIXEL_FORMAT_RGB_888: 2076 case HAL_PIXEL_FORMAT_RGB_565: 2077 case HAL_PIXEL_FORMAT_BGRA_8888: 2078 case HAL_PIXEL_FORMAT_RGBA_5551: 2079 case HAL_PIXEL_FORMAT_RGBA_4444: 2080 break; 2081 default: 2082 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2083 } 2084 2085 native_buffer->common.incRef(&native_buffer->common); 2086 return (EGLImageKHR)native_buffer; 2087} 2088 2089EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2090{ 2091 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2092 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2093 } 2094 2095 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 2096 2097 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2098 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2099 2100 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2101 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2102 2103 native_buffer->common.decRef(&native_buffer->common); 2104 2105 return EGL_TRUE; 2106} 2107 2108// ---------------------------------------------------------------------------- 2109// ANDROID extensions 2110// ---------------------------------------------------------------------------- 2111 2112EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2113 EGLint left, EGLint top, EGLint width, EGLint height) 2114{ 2115 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2116 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2117 2118 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2119 if (!d->isValid()) 2120 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2121 if (d->dpy != dpy) 2122 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2123 2124 // post the surface 2125 d->setSwapRectangle(left, top, width, height); 2126 2127 return EGL_TRUE; 2128} 2129 2130EGLClientBuffer eglGetRenderBufferANDROID(EGLDisplay dpy, EGLSurface draw) 2131{ 2132 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2133 return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0); 2134 2135 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2136 if (!d->isValid()) 2137 return setError(EGL_BAD_SURFACE, (EGLClientBuffer)0); 2138 if (d->dpy != dpy) 2139 return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0); 2140 2141 // post the surface 2142 return d->getRenderBuffer(); 2143} 2144