egl.cpp revision 56fa27572a2bbdd84a4762968327dba670fedae0
1/* 2** 3** Copyright 2007 The Android Open Source Project 4** 5** Licensed under the Apache License Version 2.0(the "License"); 6** you may not use this file except in compliance with the License. 7** You may obtain a copy of the License at 8** 9** http://www.apache.org/licenses/LICENSE-2.0 10** 11** Unless required by applicable law or agreed to in writing software 12** distributed under the License is distributed on an "AS IS" BASIS 13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND either express or implied. 14** See the License for the specific language governing permissions and 15** limitations under the License. 16*/ 17 18#include <assert.h> 19#include <errno.h> 20#include <stdlib.h> 21#include <stdio.h> 22#include <string.h> 23#include <unistd.h> 24#include <fcntl.h> 25#include <sys/ioctl.h> 26#include <sys/types.h> 27#include <sys/mman.h> 28 29#include <cutils/log.h> 30#include <cutils/atomic.h> 31 32#include <utils/threads.h> 33 34#include <EGL/egl.h> 35#include <EGL/eglext.h> 36#include <GLES/gl.h> 37#include <GLES/glext.h> 38 39#include <pixelflinger/format.h> 40#include <pixelflinger/pixelflinger.h> 41 42#include <private/ui/android_natives_priv.h> 43 44#include <hardware/copybit.h> 45 46#include "context.h" 47#include "state.h" 48#include "texture.h" 49#include "matrix.h" 50 51#undef NELEM 52#define NELEM(x) (sizeof(x)/sizeof(*(x))) 53 54// ---------------------------------------------------------------------------- 55namespace android { 56// ---------------------------------------------------------------------------- 57 58const unsigned int NUM_DISPLAYS = 1; 59 60static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER; 61static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER; 62static pthread_key_t gEGLErrorKey = -1; 63#ifndef HAVE_ANDROID_OS 64namespace gl { 65pthread_key_t gGLKey = -1; 66}; // namespace gl 67#endif 68 69template<typename T> 70static T setError(GLint error, T returnValue) { 71 if (ggl_unlikely(gEGLErrorKey == -1)) { 72 pthread_mutex_lock(&gErrorKeyMutex); 73 if (gEGLErrorKey == -1) 74 pthread_key_create(&gEGLErrorKey, NULL); 75 pthread_mutex_unlock(&gErrorKeyMutex); 76 } 77 pthread_setspecific(gEGLErrorKey, (void*)error); 78 return returnValue; 79} 80 81static GLint getError() { 82 if (ggl_unlikely(gEGLErrorKey == -1)) 83 return EGL_SUCCESS; 84 GLint error = (GLint)pthread_getspecific(gEGLErrorKey); 85 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS); 86 return error; 87} 88 89// ---------------------------------------------------------------------------- 90 91struct egl_display_t 92{ 93 egl_display_t() : type(0), initialized(0) { } 94 95 static egl_display_t& get_display(EGLDisplay dpy); 96 97 static EGLBoolean is_valid(EGLDisplay dpy) { 98 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE; 99 } 100 101 NativeDisplayType type; 102 volatile int32_t initialized; 103}; 104 105static egl_display_t gDisplays[NUM_DISPLAYS]; 106 107egl_display_t& egl_display_t::get_display(EGLDisplay dpy) { 108 return gDisplays[uintptr_t(dpy)-1U]; 109} 110 111struct egl_context_t { 112 enum { 113 IS_CURRENT = 0x00010000, 114 NEVER_CURRENT = 0x00020000 115 }; 116 uint32_t flags; 117 EGLDisplay dpy; 118 EGLConfig config; 119 EGLSurface read; 120 EGLSurface draw; 121 122 static inline egl_context_t* context(EGLContext ctx) { 123 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx); 124 return static_cast<egl_context_t*>(gl->rasterizer.base); 125 } 126}; 127 128// ---------------------------------------------------------------------------- 129 130struct egl_surface_t 131{ 132 enum { 133 PAGE_FLIP = 0x00000001, 134 MAGIC = 0x31415265 135 }; 136 137 uint32_t magic; 138 EGLDisplay dpy; 139 EGLConfig config; 140 EGLContext ctx; 141 142 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat); 143 virtual ~egl_surface_t(); 144 bool isValid() const; 145 virtual bool initCheck() const = 0; 146 147 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 148 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 149 virtual EGLBoolean connect() { return EGL_TRUE; } 150 virtual void disconnect() {} 151 virtual EGLint getWidth() const = 0; 152 virtual EGLint getHeight() const = 0; 153 154 virtual EGLint getHorizontalResolution() const; 155 virtual EGLint getVerticalResolution() const; 156 virtual EGLint getRefreshRate() const; 157 virtual EGLint getSwapBehavior() const; 158 virtual EGLBoolean swapBuffers(); 159 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 160 virtual EGLClientBuffer getRenderBuffer() const; 161protected: 162 GGLSurface depth; 163}; 164 165egl_surface_t::egl_surface_t(EGLDisplay dpy, 166 EGLConfig config, 167 int32_t depthFormat) 168 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 169{ 170 depth.version = sizeof(GGLSurface); 171 depth.data = 0; 172 depth.format = depthFormat; 173} 174egl_surface_t::~egl_surface_t() 175{ 176 magic = 0; 177 free(depth.data); 178} 179bool egl_surface_t::isValid() const { 180 LOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this); 181 return magic == MAGIC; 182} 183 184EGLBoolean egl_surface_t::swapBuffers() { 185 return EGL_FALSE; 186} 187EGLint egl_surface_t::getHorizontalResolution() const { 188 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 189} 190EGLint egl_surface_t::getVerticalResolution() const { 191 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 192} 193EGLint egl_surface_t::getRefreshRate() const { 194 return (60 * EGL_DISPLAY_SCALING); 195} 196EGLint egl_surface_t::getSwapBehavior() const { 197 return EGL_BUFFER_PRESERVED; 198} 199EGLBoolean egl_surface_t::setSwapRectangle( 200 EGLint l, EGLint t, EGLint w, EGLint h) 201{ 202 return EGL_FALSE; 203} 204EGLClientBuffer egl_surface_t::getRenderBuffer() const { 205 return 0; 206} 207 208// ---------------------------------------------------------------------------- 209 210struct egl_window_surface_v2_t : public egl_surface_t 211{ 212 egl_window_surface_v2_t( 213 EGLDisplay dpy, EGLConfig config, 214 int32_t depthFormat, 215 android_native_window_t* window); 216 217 ~egl_window_surface_v2_t(); 218 219 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails 220 virtual EGLBoolean swapBuffers(); 221 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 222 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 223 virtual EGLBoolean connect(); 224 virtual void disconnect(); 225 virtual EGLint getWidth() const { return width; } 226 virtual EGLint getHeight() const { return height; } 227 virtual EGLint getHorizontalResolution() const; 228 virtual EGLint getVerticalResolution() const; 229 virtual EGLint getRefreshRate() const; 230 virtual EGLint getSwapBehavior() const; 231 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 232 virtual EGLClientBuffer getRenderBuffer() const; 233 234private: 235 status_t lock(android_native_buffer_t* buf, int usage, void** vaddr); 236 status_t unlock(android_native_buffer_t* buf); 237 android_native_window_t* nativeWindow; 238 android_native_buffer_t* buffer; 239 android_native_buffer_t* previousBuffer; 240 gralloc_module_t const* module; 241 copybit_device_t* blitengine; 242 int width; 243 int height; 244 void* bits; 245 GGLFormat const* pixelFormatTable; 246 247 struct Rect { 248 inline Rect() { }; 249 inline Rect(int32_t w, int32_t h) 250 : left(0), top(0), right(w), bottom(h) { } 251 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 252 : left(l), top(t), right(r), bottom(b) { } 253 Rect& andSelf(const Rect& r) { 254 left = max(left, r.left); 255 top = max(top, r.top); 256 right = min(right, r.right); 257 bottom = min(bottom, r.bottom); 258 return *this; 259 } 260 bool isEmpty() const { 261 return (left>=right || top>=bottom); 262 } 263 void dump(char const* what) { 264 LOGD("%s { %5d, %5d, w=%5d, h=%5d }", 265 what, left, top, right-left, bottom-top); 266 } 267 268 int32_t left; 269 int32_t top; 270 int32_t right; 271 int32_t bottom; 272 }; 273 274 struct Region { 275 inline Region() : count(0) { } 276 typedef Rect const* const_iterator; 277 const_iterator begin() const { return storage; } 278 const_iterator end() const { return storage+count; } 279 static Region subtract(const Rect& lhs, const Rect& rhs) { 280 Region reg; 281 Rect* storage = reg.storage; 282 if (!lhs.isEmpty()) { 283 if (lhs.top < rhs.top) { // top rect 284 storage->left = lhs.left; 285 storage->top = lhs.top; 286 storage->right = lhs.right; 287 storage->bottom = rhs.top; 288 storage++; 289 } 290 const int32_t top = max(lhs.top, rhs.top); 291 const int32_t bot = min(lhs.bottom, rhs.bottom); 292 if (top < bot) { 293 if (lhs.left < rhs.left) { // left-side rect 294 storage->left = lhs.left; 295 storage->top = top; 296 storage->right = rhs.left; 297 storage->bottom = bot; 298 storage++; 299 } 300 if (lhs.right > rhs.right) { // right-side rect 301 storage->left = rhs.right; 302 storage->top = top; 303 storage->right = lhs.right; 304 storage->bottom = bot; 305 storage++; 306 } 307 } 308 if (lhs.bottom > rhs.bottom) { // bottom rect 309 storage->left = lhs.left; 310 storage->top = rhs.bottom; 311 storage->right = lhs.right; 312 storage->bottom = lhs.bottom; 313 storage++; 314 } 315 reg.count = storage - reg.storage; 316 } 317 return reg; 318 } 319 bool isEmpty() const { 320 return count<=0; 321 } 322 private: 323 Rect storage[4]; 324 ssize_t count; 325 }; 326 327 struct region_iterator : public copybit_region_t { 328 region_iterator(const Region& region) 329 : b(region.begin()), e(region.end()) { 330 this->next = iterate; 331 } 332 private: 333 static int iterate(copybit_region_t const * self, copybit_rect_t* rect) { 334 region_iterator const* me = static_cast<region_iterator const*>(self); 335 if (me->b != me->e) { 336 *reinterpret_cast<Rect*>(rect) = *me->b++; 337 return 1; 338 } 339 return 0; 340 } 341 mutable Region::const_iterator b; 342 Region::const_iterator const e; 343 }; 344 345 void copyBlt( 346 android_native_buffer_t* dst, void* dst_vaddr, 347 android_native_buffer_t* src, void const* src_vaddr, 348 const Region& clip); 349 350 Rect dirtyRegion; 351 Rect oldDirtyRegion; 352}; 353 354egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 355 EGLConfig config, 356 int32_t depthFormat, 357 android_native_window_t* window) 358 : egl_surface_t(dpy, config, depthFormat), 359 nativeWindow(window), buffer(0), previousBuffer(0), module(0), 360 blitengine(0), bits(NULL) 361{ 362 hw_module_t const* pModule; 363 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 364 module = reinterpret_cast<gralloc_module_t const*>(pModule); 365 366 if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &pModule) == 0) { 367 copybit_open(pModule, &blitengine); 368 } 369 370 pixelFormatTable = gglGetPixelFormatTable(); 371 372 // keep a reference on the window 373 nativeWindow->common.incRef(&nativeWindow->common); 374 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width); 375 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height); 376} 377 378egl_window_surface_v2_t::~egl_window_surface_v2_t() { 379 if (buffer) { 380 buffer->common.decRef(&buffer->common); 381 } 382 if (previousBuffer) { 383 previousBuffer->common.decRef(&previousBuffer->common); 384 } 385 nativeWindow->common.decRef(&nativeWindow->common); 386 if (blitengine) { 387 copybit_close(blitengine); 388 } 389} 390 391EGLBoolean egl_window_surface_v2_t::connect() 392{ 393 // we're intending to do software rendering 394 native_window_set_usage(nativeWindow, 395 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); 396 397 // dequeue a buffer 398 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) { 399 return setError(EGL_BAD_ALLOC, EGL_FALSE); 400 } 401 402 // allocate a corresponding depth-buffer 403 width = buffer->width; 404 height = buffer->height; 405 if (depth.format) { 406 depth.width = width; 407 depth.height = height; 408 depth.stride = depth.width; // use the width here 409 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 410 if (depth.data == 0) { 411 return setError(EGL_BAD_ALLOC, EGL_FALSE); 412 } 413 } 414 415 // keep a reference on the buffer 416 buffer->common.incRef(&buffer->common); 417 418 // Lock the buffer 419 nativeWindow->lockBuffer(nativeWindow, buffer); 420 // pin the buffer down 421 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 422 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 423 LOGE("connect() failed to lock buffer %p (%ux%u)", 424 buffer, buffer->width, buffer->height); 425 return setError(EGL_BAD_ACCESS, EGL_FALSE); 426 // FIXME: we should make sure we're not accessing the buffer anymore 427 } 428 return EGL_TRUE; 429} 430 431void egl_window_surface_v2_t::disconnect() 432{ 433 if (buffer && bits) { 434 bits = NULL; 435 unlock(buffer); 436 } 437 // enqueue the last frame 438 nativeWindow->queueBuffer(nativeWindow, buffer); 439 if (buffer) { 440 buffer->common.decRef(&buffer->common); 441 buffer = 0; 442 } 443 if (previousBuffer) { 444 previousBuffer->common.decRef(&previousBuffer->common); 445 previousBuffer = 0; 446 } 447} 448 449status_t egl_window_surface_v2_t::lock( 450 android_native_buffer_t* buf, int usage, void** vaddr) 451{ 452 int err = module->lock(module, buf->handle, 453 usage, 0, 0, buf->width, buf->height, vaddr); 454 return err; 455} 456 457status_t egl_window_surface_v2_t::unlock(android_native_buffer_t* buf) 458{ 459 if (!buf) return BAD_VALUE; 460 int err = module->unlock(module, buf->handle); 461 return err; 462} 463 464void egl_window_surface_v2_t::copyBlt( 465 android_native_buffer_t* dst, void* dst_vaddr, 466 android_native_buffer_t* src, void const* src_vaddr, 467 const Region& clip) 468{ 469 // FIXME: use copybit if possible 470 // NOTE: dst and src must be the same format 471 472 status_t err = NO_ERROR; 473 copybit_device_t* const copybit = blitengine; 474 if (copybit) { 475 copybit_image_t simg; 476 simg.w = src->width; 477 simg.h = src->height; 478 simg.format = src->format; 479 simg.handle = const_cast<native_handle_t*>(src->handle); 480 481 copybit_image_t dimg; 482 dimg.w = dst->width; 483 dimg.h = dst->height; 484 dimg.format = dst->format; 485 dimg.handle = const_cast<native_handle_t*>(dst->handle); 486 487 copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0); 488 copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255); 489 copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_DISABLE); 490 region_iterator it(clip); 491 err = copybit->blit(copybit, &dimg, &simg, &it); 492 if (err != NO_ERROR) { 493 LOGE("copybit failed (%s)", strerror(err)); 494 } 495 } 496 497 if (!copybit || err) { 498 Region::const_iterator cur = clip.begin(); 499 Region::const_iterator end = clip.end(); 500 501 const size_t bpp = pixelFormatTable[src->format].size; 502 const size_t dbpr = dst->stride * bpp; 503 const size_t sbpr = src->stride * bpp; 504 505 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 506 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 507 508 while (cur != end) { 509 const Rect& r(*cur++); 510 ssize_t w = r.right - r.left; 511 ssize_t h = r.bottom - r.top; 512 if (w <= 0 || h<=0) continue; 513 size_t size = w * bpp; 514 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 515 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 516 if (dbpr==sbpr && size==sbpr) { 517 size *= h; 518 h = 1; 519 } 520 do { 521 memcpy(d, s, size); 522 d += dbpr; 523 s += sbpr; 524 } while (--h > 0); 525 } 526 } 527} 528 529EGLBoolean egl_window_surface_v2_t::swapBuffers() 530{ 531 if (!buffer) { 532 return setError(EGL_BAD_ACCESS, EGL_FALSE); 533 } 534 535 /* 536 * Handle eglSetSwapRectangleANDROID() 537 * We copyback from the front buffer 538 */ 539 if (!dirtyRegion.isEmpty()) { 540 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 541 if (previousBuffer) { 542 const Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 543 if (!copyBack.isEmpty()) { 544 void* prevBits; 545 if (lock(previousBuffer, 546 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 547 // copy from previousBuffer to buffer 548 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 549 unlock(previousBuffer); 550 } 551 } 552 } 553 oldDirtyRegion = dirtyRegion; 554 } 555 556 if (previousBuffer) { 557 previousBuffer->common.decRef(&previousBuffer->common); 558 previousBuffer = 0; 559 } 560 561 unlock(buffer); 562 previousBuffer = buffer; 563 nativeWindow->queueBuffer(nativeWindow, buffer); 564 buffer = 0; 565 566 // dequeue a new buffer 567 nativeWindow->dequeueBuffer(nativeWindow, &buffer); 568 569 // TODO: lockBuffer should rather be executed when the very first 570 // direct rendering occurs. 571 nativeWindow->lockBuffer(nativeWindow, buffer); 572 573 // reallocate the depth-buffer if needed 574 if ((width != buffer->width) || (height != buffer->height)) { 575 // TODO: we probably should reset the swap rect here 576 // if the window size has changed 577 width = buffer->width; 578 height = buffer->height; 579 if (depth.data) { 580 free(depth.data); 581 depth.width = width; 582 depth.height = height; 583 depth.stride = buffer->stride; 584 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 585 if (depth.data == 0) { 586 setError(EGL_BAD_ALLOC, EGL_FALSE); 587 return EGL_FALSE; 588 } 589 } 590 } 591 592 // keep a reference on the buffer 593 buffer->common.incRef(&buffer->common); 594 595 // finally pin the buffer down 596 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 597 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 598 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 599 buffer, buffer->width, buffer->height); 600 return setError(EGL_BAD_ACCESS, EGL_FALSE); 601 // FIXME: we should make sure we're not accessing the buffer anymore 602 } 603 604 return EGL_TRUE; 605} 606 607EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 608 EGLint l, EGLint t, EGLint w, EGLint h) 609{ 610 dirtyRegion = Rect(l, t, l+w, t+h); 611 return EGL_TRUE; 612} 613 614EGLClientBuffer egl_window_surface_v2_t::getRenderBuffer() const 615{ 616 return buffer; 617} 618 619#ifdef LIBAGL_USE_GRALLOC_COPYBITS 620 621static bool supportedCopybitsDestinationFormat(int format) { 622 // Hardware supported 623 switch (format) { 624 case HAL_PIXEL_FORMAT_RGB_565: 625 case HAL_PIXEL_FORMAT_RGBA_8888: 626 case HAL_PIXEL_FORMAT_RGBA_4444: 627 case HAL_PIXEL_FORMAT_RGBA_5551: 628 case HAL_PIXEL_FORMAT_BGRA_8888: 629 return true; 630 } 631 return false; 632} 633#endif 634 635EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 636{ 637 GGLSurface buffer; 638 buffer.version = sizeof(GGLSurface); 639 buffer.width = this->buffer->width; 640 buffer.height = this->buffer->height; 641 buffer.stride = this->buffer->stride; 642 buffer.data = (GGLubyte*)bits; 643 buffer.format = this->buffer->format; 644 gl->rasterizer.procs.colorBuffer(gl, &buffer); 645 if (depth.data != gl->rasterizer.state.buffers.depth.data) 646 gl->rasterizer.procs.depthBuffer(gl, &depth); 647 648#ifdef LIBAGL_USE_GRALLOC_COPYBITS 649 gl->copybits.drawSurfaceBuffer = 0; 650 if (gl->copybits.blitEngine != NULL) { 651 if (supportedCopybitsDestinationFormat(buffer.format)) { 652 buffer_handle_t handle = this->buffer->handle; 653 if (handle != NULL) { 654 gl->copybits.drawSurfaceBuffer = handle; 655 } 656 } 657 } 658#endif // LIBAGL_USE_GRALLOC_COPYBITS 659 660 return EGL_TRUE; 661} 662EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 663{ 664 GGLSurface buffer; 665 buffer.version = sizeof(GGLSurface); 666 buffer.width = this->buffer->width; 667 buffer.height = this->buffer->height; 668 buffer.stride = this->buffer->stride; 669 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 670 buffer.format = this->buffer->format; 671 gl->rasterizer.procs.readBuffer(gl, &buffer); 672 return EGL_TRUE; 673} 674EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 675 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 676} 677EGLint egl_window_surface_v2_t::getVerticalResolution() const { 678 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 679} 680EGLint egl_window_surface_v2_t::getRefreshRate() const { 681 return (60 * EGL_DISPLAY_SCALING); // FIXME 682} 683EGLint egl_window_surface_v2_t::getSwapBehavior() const 684{ 685 /* 686 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 687 * the content of the swapped buffer. 688 * 689 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 690 * 691 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 692 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 693 * is, everything outside of this area is preserved. 694 * 695 * This implementation of EGL assumes the later case. 696 * 697 */ 698 699 return EGL_BUFFER_DESTROYED; 700} 701 702// ---------------------------------------------------------------------------- 703 704struct egl_pixmap_surface_t : public egl_surface_t 705{ 706 egl_pixmap_surface_t( 707 EGLDisplay dpy, EGLConfig config, 708 int32_t depthFormat, 709 egl_native_pixmap_t const * pixmap); 710 711 virtual ~egl_pixmap_surface_t() { } 712 713 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 714 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 715 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 716 virtual EGLint getWidth() const { return nativePixmap.width; } 717 virtual EGLint getHeight() const { return nativePixmap.height; } 718private: 719 egl_native_pixmap_t nativePixmap; 720}; 721 722egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 723 EGLConfig config, 724 int32_t depthFormat, 725 egl_native_pixmap_t const * pixmap) 726 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 727{ 728 if (depthFormat) { 729 depth.width = pixmap->width; 730 depth.height = pixmap->height; 731 depth.stride = depth.width; // use the width here 732 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 733 if (depth.data == 0) { 734 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 735 } 736 } 737} 738EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 739{ 740 GGLSurface buffer; 741 buffer.version = sizeof(GGLSurface); 742 buffer.width = nativePixmap.width; 743 buffer.height = nativePixmap.height; 744 buffer.stride = nativePixmap.stride; 745 buffer.data = nativePixmap.data; 746 buffer.format = nativePixmap.format; 747 748 gl->rasterizer.procs.colorBuffer(gl, &buffer); 749 if (depth.data != gl->rasterizer.state.buffers.depth.data) 750 gl->rasterizer.procs.depthBuffer(gl, &depth); 751 return EGL_TRUE; 752} 753EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 754{ 755 GGLSurface buffer; 756 buffer.version = sizeof(GGLSurface); 757 buffer.width = nativePixmap.width; 758 buffer.height = nativePixmap.height; 759 buffer.stride = nativePixmap.stride; 760 buffer.data = nativePixmap.data; 761 buffer.format = nativePixmap.format; 762 gl->rasterizer.procs.readBuffer(gl, &buffer); 763 return EGL_TRUE; 764} 765 766// ---------------------------------------------------------------------------- 767 768struct egl_pbuffer_surface_t : public egl_surface_t 769{ 770 egl_pbuffer_surface_t( 771 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 772 int32_t w, int32_t h, int32_t f); 773 774 virtual ~egl_pbuffer_surface_t(); 775 776 virtual bool initCheck() const { return pbuffer.data != 0; } 777 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 778 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 779 virtual EGLint getWidth() const { return pbuffer.width; } 780 virtual EGLint getHeight() const { return pbuffer.height; } 781private: 782 GGLSurface pbuffer; 783}; 784 785egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 786 EGLConfig config, int32_t depthFormat, 787 int32_t w, int32_t h, int32_t f) 788 : egl_surface_t(dpy, config, depthFormat) 789{ 790 size_t size = w*h; 791 switch (f) { 792 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 793 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 794 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 795 default: 796 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 797 pbuffer.data = 0; 798 break; 799 } 800 pbuffer.version = sizeof(GGLSurface); 801 pbuffer.width = w; 802 pbuffer.height = h; 803 pbuffer.stride = w; 804 pbuffer.data = (GGLubyte*)malloc(size); 805 pbuffer.format = f; 806 807 if (depthFormat) { 808 depth.width = pbuffer.width; 809 depth.height = pbuffer.height; 810 depth.stride = depth.width; // use the width here 811 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 812 if (depth.data == 0) { 813 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 814 return; 815 } 816 } 817} 818egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 819 free(pbuffer.data); 820} 821EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 822{ 823 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 824 if (depth.data != gl->rasterizer.state.buffers.depth.data) 825 gl->rasterizer.procs.depthBuffer(gl, &depth); 826 return EGL_TRUE; 827} 828EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 829{ 830 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 831 return EGL_TRUE; 832} 833 834// ---------------------------------------------------------------------------- 835 836struct config_pair_t { 837 GLint key; 838 GLint value; 839}; 840 841struct configs_t { 842 const config_pair_t* array; 843 int size; 844}; 845 846struct config_management_t { 847 GLint key; 848 bool (*match)(GLint reqValue, GLint confValue); 849 static bool atLeast(GLint reqValue, GLint confValue) { 850 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 851 } 852 static bool exact(GLint reqValue, GLint confValue) { 853 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 854 } 855 static bool mask(GLint reqValue, GLint confValue) { 856 return (confValue & reqValue) == reqValue; 857 } 858}; 859 860// ---------------------------------------------------------------------------- 861 862#define VERSION_MAJOR 1 863#define VERSION_MINOR 2 864static char const * const gVendorString = "Google Inc."; 865static char const * const gVersionString = "1.2 Android Driver"; 866static char const * const gClientApiString = "OpenGL ES"; 867static char const * const gExtensionsString = 868 "EGL_KHR_image_base " 869 // "KHR_image_pixmap " 870 "EGL_ANDROID_image_native_buffer " 871 "EGL_ANDROID_swap_rectangle " 872 "EGL_ANDROID_get_render_buffer " 873 ; 874 875// ---------------------------------------------------------------------------- 876 877struct extention_map_t { 878 const char * const name; 879 __eglMustCastToProperFunctionPointerType address; 880}; 881 882static const extention_map_t gExtentionMap[] = { 883 { "glDrawTexsOES", 884 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 885 { "glDrawTexiOES", 886 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 887 { "glDrawTexfOES", 888 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 889 { "glDrawTexxOES", 890 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 891 { "glDrawTexsvOES", 892 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 893 { "glDrawTexivOES", 894 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 895 { "glDrawTexfvOES", 896 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 897 { "glDrawTexxvOES", 898 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 899 { "glQueryMatrixxOES", 900 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 901 { "glEGLImageTargetTexture2DOES", 902 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 903 { "glEGLImageTargetRenderbufferStorageOES", 904 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 905 { "glClipPlanef", 906 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 907 { "glClipPlanex", 908 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 909 { "glBindBuffer", 910 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 911 { "glBufferData", 912 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 913 { "glBufferSubData", 914 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 915 { "glDeleteBuffers", 916 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 917 { "glGenBuffers", 918 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 919 { "eglCreateImageKHR", 920 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 921 { "eglDestroyImageKHR", 922 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 923 { "eglSetSwapRectangleANDROID", 924 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 925 { "eglGetRenderBufferANDROID", 926 (__eglMustCastToProperFunctionPointerType)&eglGetRenderBufferANDROID }, 927}; 928 929/* 930 * In the lists below, attributes names MUST be sorted. 931 * Additionally, all configs must be sorted according to 932 * the EGL specification. 933 */ 934 935static config_pair_t const config_base_attribute_list[] = { 936 { EGL_STENCIL_SIZE, 0 }, 937 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 938 { EGL_LEVEL, 0 }, 939 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 940 { EGL_MAX_PBUFFER_PIXELS, 941 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 942 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 943 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 944 { EGL_NATIVE_VISUAL_ID, 0 }, 945 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 946 { EGL_SAMPLES, 0 }, 947 { EGL_SAMPLE_BUFFERS, 0 }, 948 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 949 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 950 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 951 { EGL_TRANSPARENT_RED_VALUE, 0 }, 952 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 953 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 954 { EGL_MIN_SWAP_INTERVAL, 1 }, 955 { EGL_MAX_SWAP_INTERVAL, 1 }, 956 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 957}; 958 959// These configs can override the base attribute list 960// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 961 962static config_pair_t const config_0_attribute_list[] = { 963 { EGL_BUFFER_SIZE, 16 }, 964 { EGL_ALPHA_SIZE, 0 }, 965 { EGL_BLUE_SIZE, 5 }, 966 { EGL_GREEN_SIZE, 6 }, 967 { EGL_RED_SIZE, 5 }, 968 { EGL_DEPTH_SIZE, 0 }, 969 { EGL_CONFIG_ID, 0 }, 970 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 971}; 972 973static config_pair_t const config_1_attribute_list[] = { 974 { EGL_BUFFER_SIZE, 16 }, 975 { EGL_ALPHA_SIZE, 0 }, 976 { EGL_BLUE_SIZE, 5 }, 977 { EGL_GREEN_SIZE, 6 }, 978 { EGL_RED_SIZE, 5 }, 979 { EGL_DEPTH_SIZE, 16 }, 980 { EGL_CONFIG_ID, 1 }, 981 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 982}; 983 984static config_pair_t const config_2_attribute_list[] = { 985 { EGL_BUFFER_SIZE, 32 }, 986 { EGL_ALPHA_SIZE, 8 }, 987 { EGL_BLUE_SIZE, 8 }, 988 { EGL_GREEN_SIZE, 8 }, 989 { EGL_RED_SIZE, 8 }, 990 { EGL_DEPTH_SIZE, 0 }, 991 { EGL_CONFIG_ID, 2 }, 992 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 993}; 994 995static config_pair_t const config_3_attribute_list[] = { 996 { EGL_BUFFER_SIZE, 32 }, 997 { EGL_ALPHA_SIZE, 8 }, 998 { EGL_BLUE_SIZE, 8 }, 999 { EGL_GREEN_SIZE, 8 }, 1000 { EGL_RED_SIZE, 8 }, 1001 { EGL_DEPTH_SIZE, 16 }, 1002 { EGL_CONFIG_ID, 3 }, 1003 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1004}; 1005 1006static config_pair_t const config_4_attribute_list[] = { 1007 { EGL_BUFFER_SIZE, 8 }, 1008 { EGL_ALPHA_SIZE, 8 }, 1009 { EGL_BLUE_SIZE, 0 }, 1010 { EGL_GREEN_SIZE, 0 }, 1011 { EGL_RED_SIZE, 0 }, 1012 { EGL_DEPTH_SIZE, 0 }, 1013 { EGL_CONFIG_ID, 4 }, 1014 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1015}; 1016 1017static config_pair_t const config_5_attribute_list[] = { 1018 { EGL_BUFFER_SIZE, 8 }, 1019 { EGL_ALPHA_SIZE, 8 }, 1020 { EGL_BLUE_SIZE, 0 }, 1021 { EGL_GREEN_SIZE, 0 }, 1022 { EGL_RED_SIZE, 0 }, 1023 { EGL_DEPTH_SIZE, 16 }, 1024 { EGL_CONFIG_ID, 5 }, 1025 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1026}; 1027 1028static configs_t const gConfigs[] = { 1029 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 1030 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 1031 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 1032 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 1033 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 1034 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 1035}; 1036 1037static config_management_t const gConfigManagement[] = { 1038 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 1039 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1040 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1041 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1042 { EGL_RED_SIZE, config_management_t::atLeast }, 1043 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1044 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1045 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1046 { EGL_CONFIG_ID, config_management_t::exact }, 1047 { EGL_LEVEL, config_management_t::exact }, 1048 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::exact }, 1049 { EGL_MAX_PBUFFER_PIXELS, config_management_t::exact }, 1050 { EGL_MAX_PBUFFER_WIDTH, config_management_t::exact }, 1051 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1052 { EGL_NATIVE_VISUAL_ID, config_management_t::exact }, 1053 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1054 { EGL_SAMPLES, config_management_t::exact }, 1055 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1056 { EGL_SURFACE_TYPE, config_management_t::mask }, 1057 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1058 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1059 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1060 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1061 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1062 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1063 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1064 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1065}; 1066 1067static config_pair_t const config_defaults[] = { 1068 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1069}; 1070 1071// ---------------------------------------------------------------------------- 1072 1073template<typename T> 1074static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1075{ 1076 while (first <= last) { 1077 int mid = (first + last) / 2; 1078 if (key > sortedArray[mid].key) { 1079 first = mid + 1; 1080 } else if (key < sortedArray[mid].key) { 1081 last = mid - 1; 1082 } else { 1083 return mid; 1084 } 1085 } 1086 return -1; 1087} 1088 1089static int isAttributeMatching(int i, EGLint attr, EGLint val) 1090{ 1091 // look for the attribute in all of our configs 1092 config_pair_t const* configFound = gConfigs[i].array; 1093 int index = binarySearch<config_pair_t>( 1094 gConfigs[i].array, 1095 0, gConfigs[i].size-1, 1096 attr); 1097 if (index < 0) { 1098 configFound = config_base_attribute_list; 1099 index = binarySearch<config_pair_t>( 1100 config_base_attribute_list, 1101 0, NELEM(config_base_attribute_list)-1, 1102 attr); 1103 } 1104 if (index >= 0) { 1105 // attribute found, check if this config could match 1106 int cfgMgtIndex = binarySearch<config_management_t>( 1107 gConfigManagement, 1108 0, NELEM(gConfigManagement)-1, 1109 attr); 1110 if (index >= 0) { 1111 bool match = gConfigManagement[cfgMgtIndex].match( 1112 val, configFound[index].value); 1113 if (match) { 1114 // this config matches 1115 return 1; 1116 } 1117 } else { 1118 // attribute not found. this should NEVER happen. 1119 } 1120 } else { 1121 // error, this attribute doesn't exist 1122 } 1123 return 0; 1124} 1125 1126static int makeCurrent(ogles_context_t* gl) 1127{ 1128 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1129 if (gl) { 1130 egl_context_t* c = egl_context_t::context(gl); 1131 if (c->flags & egl_context_t::IS_CURRENT) { 1132 if (current != gl) { 1133 // it is an error to set a context current, if it's already 1134 // current to another thread 1135 return -1; 1136 } 1137 } else { 1138 if (current) { 1139 // mark the current context as not current, and flush 1140 glFlush(); 1141 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1142 } 1143 } 1144 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1145 // The context is not current, make it current! 1146 setGlThreadSpecific(gl); 1147 c->flags |= egl_context_t::IS_CURRENT; 1148 } 1149 } else { 1150 if (current) { 1151 // mark the current context as not current, and flush 1152 glFlush(); 1153 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1154 } 1155 // this thread has no context attached to it 1156 setGlThreadSpecific(0); 1157 } 1158 return 0; 1159} 1160 1161static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1162 EGLint attribute, EGLint *value) 1163{ 1164 size_t numConfigs = NELEM(gConfigs); 1165 int index = (int)config; 1166 if (uint32_t(index) >= numConfigs) 1167 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1168 1169 int attrIndex; 1170 attrIndex = binarySearch<config_pair_t>( 1171 gConfigs[index].array, 1172 0, gConfigs[index].size-1, 1173 attribute); 1174 if (attrIndex>=0) { 1175 *value = gConfigs[index].array[attrIndex].value; 1176 return EGL_TRUE; 1177 } 1178 1179 attrIndex = binarySearch<config_pair_t>( 1180 config_base_attribute_list, 1181 0, NELEM(config_base_attribute_list)-1, 1182 attribute); 1183 if (attrIndex>=0) { 1184 *value = config_base_attribute_list[attrIndex].value; 1185 return EGL_TRUE; 1186 } 1187 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1188} 1189 1190static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1191 NativeWindowType window, const EGLint *attrib_list) 1192{ 1193 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1194 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1195 if (window == 0) 1196 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1197 1198 EGLint surfaceType; 1199 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1200 return EGL_FALSE; 1201 1202 if (!(surfaceType & EGL_WINDOW_BIT)) 1203 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1204 1205 if (static_cast<android_native_window_t*>(window)->common.magic != 1206 ANDROID_NATIVE_WINDOW_MAGIC) { 1207 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1208 } 1209 1210 EGLint configID; 1211 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1212 return EGL_FALSE; 1213 1214 int32_t depthFormat; 1215 int32_t pixelFormat; 1216 switch(configID) { 1217 case 0: 1218 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1219 depthFormat = 0; 1220 break; 1221 case 1: 1222 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1223 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1224 break; 1225 case 2: 1226 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1227 depthFormat = 0; 1228 break; 1229 case 3: 1230 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1231 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1232 break; 1233 case 4: 1234 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1235 depthFormat = 0; 1236 break; 1237 case 5: 1238 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1239 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1240 break; 1241 default: 1242 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1243 } 1244 1245 // FIXME: we don't have access to the pixelFormat here just yet. 1246 // (it's possible that the surface is not fully initialized) 1247 // maybe this should be done after the page-flip 1248 //if (EGLint(info.format) != pixelFormat) 1249 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1250 1251 egl_surface_t* surface; 1252 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1253 static_cast<android_native_window_t*>(window)); 1254 1255 if (!surface->initCheck()) { 1256 // there was a problem in the ctor, the error 1257 // flag has been set. 1258 delete surface; 1259 surface = 0; 1260 } 1261 return surface; 1262} 1263 1264static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1265 NativePixmapType pixmap, const EGLint *attrib_list) 1266{ 1267 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1268 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1269 if (pixmap == 0) 1270 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1271 1272 EGLint surfaceType; 1273 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1274 return EGL_FALSE; 1275 1276 if (!(surfaceType & EGL_PIXMAP_BIT)) 1277 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1278 1279 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1280 sizeof(egl_native_pixmap_t)) { 1281 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1282 } 1283 1284 EGLint configID; 1285 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1286 return EGL_FALSE; 1287 1288 int32_t depthFormat; 1289 int32_t pixelFormat; 1290 switch(configID) { 1291 case 0: 1292 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1293 depthFormat = 0; 1294 break; 1295 case 1: 1296 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1297 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1298 break; 1299 case 2: 1300 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1301 depthFormat = 0; 1302 break; 1303 case 3: 1304 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1305 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1306 break; 1307 case 4: 1308 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1309 depthFormat = 0; 1310 break; 1311 case 5: 1312 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1313 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1314 break; 1315 default: 1316 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1317 } 1318 1319 if (pixmap->format != pixelFormat) 1320 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1321 1322 egl_surface_t* surface = 1323 new egl_pixmap_surface_t(dpy, config, depthFormat, 1324 static_cast<egl_native_pixmap_t*>(pixmap)); 1325 1326 if (!surface->initCheck()) { 1327 // there was a problem in the ctor, the error 1328 // flag has been set. 1329 delete surface; 1330 surface = 0; 1331 } 1332 return surface; 1333} 1334 1335static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1336 const EGLint *attrib_list) 1337{ 1338 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1339 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1340 1341 EGLint surfaceType; 1342 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1343 return EGL_FALSE; 1344 1345 if (!(surfaceType & EGL_PBUFFER_BIT)) 1346 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1347 1348 EGLint configID; 1349 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1350 return EGL_FALSE; 1351 1352 int32_t depthFormat; 1353 int32_t pixelFormat; 1354 switch(configID) { 1355 case 0: 1356 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1357 depthFormat = 0; 1358 break; 1359 case 1: 1360 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1361 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1362 break; 1363 case 2: 1364 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1365 depthFormat = 0; 1366 break; 1367 case 3: 1368 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1369 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1370 break; 1371 case 4: 1372 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1373 depthFormat = 0; 1374 break; 1375 case 5: 1376 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1377 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1378 break; 1379 default: 1380 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1381 } 1382 1383 int32_t w = 0; 1384 int32_t h = 0; 1385 while (attrib_list[0]) { 1386 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1387 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1388 attrib_list+=2; 1389 } 1390 1391 egl_surface_t* surface = 1392 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1393 1394 if (!surface->initCheck()) { 1395 // there was a problem in the ctor, the error 1396 // flag has been set. 1397 delete surface; 1398 surface = 0; 1399 } 1400 return surface; 1401} 1402 1403// ---------------------------------------------------------------------------- 1404}; // namespace android 1405// ---------------------------------------------------------------------------- 1406 1407using namespace android; 1408 1409// ---------------------------------------------------------------------------- 1410// Initialization 1411// ---------------------------------------------------------------------------- 1412 1413EGLDisplay eglGetDisplay(NativeDisplayType display) 1414{ 1415#ifndef HAVE_ANDROID_OS 1416 // this just needs to be done once 1417 if (gGLKey == -1) { 1418 pthread_mutex_lock(&gInitMutex); 1419 if (gGLKey == -1) 1420 pthread_key_create(&gGLKey, NULL); 1421 pthread_mutex_unlock(&gInitMutex); 1422 } 1423#endif 1424 if (display == EGL_DEFAULT_DISPLAY) { 1425 EGLDisplay dpy = (EGLDisplay)1; 1426 egl_display_t& d = egl_display_t::get_display(dpy); 1427 d.type = display; 1428 return dpy; 1429 } 1430 return EGL_NO_DISPLAY; 1431} 1432 1433EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1434{ 1435 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1436 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1437 1438 EGLBoolean res = EGL_TRUE; 1439 egl_display_t& d = egl_display_t::get_display(dpy); 1440 1441 if (android_atomic_inc(&d.initialized) == 0) { 1442 // initialize stuff here if needed 1443 //pthread_mutex_lock(&gInitMutex); 1444 //pthread_mutex_unlock(&gInitMutex); 1445 } 1446 1447 if (res == EGL_TRUE) { 1448 if (major != NULL) *major = VERSION_MAJOR; 1449 if (minor != NULL) *minor = VERSION_MINOR; 1450 } 1451 return res; 1452} 1453 1454EGLBoolean eglTerminate(EGLDisplay dpy) 1455{ 1456 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1457 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1458 1459 EGLBoolean res = EGL_TRUE; 1460 egl_display_t& d = egl_display_t::get_display(dpy); 1461 if (android_atomic_dec(&d.initialized) == 1) { 1462 // TODO: destroy all resources (surfaces, contexts, etc...) 1463 //pthread_mutex_lock(&gInitMutex); 1464 //pthread_mutex_unlock(&gInitMutex); 1465 } 1466 return res; 1467} 1468 1469// ---------------------------------------------------------------------------- 1470// configuration 1471// ---------------------------------------------------------------------------- 1472 1473EGLBoolean eglGetConfigs( EGLDisplay dpy, 1474 EGLConfig *configs, 1475 EGLint config_size, EGLint *num_config) 1476{ 1477 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1478 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1479 1480 GLint numConfigs = NELEM(gConfigs); 1481 if (!configs) { 1482 *num_config = numConfigs; 1483 return EGL_TRUE; 1484 } 1485 GLint i; 1486 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1487 *configs++ = (EGLConfig)i; 1488 } 1489 *num_config = i; 1490 return EGL_TRUE; 1491} 1492 1493EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1494 EGLConfig *configs, EGLint config_size, 1495 EGLint *num_config) 1496{ 1497 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1498 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1499 1500 if (ggl_unlikely(num_config==0)) { 1501 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1502 } 1503 1504 if (ggl_unlikely(attrib_list==0)) { 1505 *num_config = 0; 1506 return EGL_TRUE; 1507 } 1508 1509 int numAttributes = 0; 1510 int numConfigs = NELEM(gConfigs); 1511 uint32_t possibleMatch = (1<<numConfigs)-1; 1512 while(possibleMatch && *attrib_list != EGL_NONE) { 1513 numAttributes++; 1514 EGLint attr = *attrib_list++; 1515 EGLint val = *attrib_list++; 1516 for (int i=0 ; i<numConfigs ; i++) { 1517 if (!(possibleMatch & (1<<i))) 1518 continue; 1519 if (isAttributeMatching(i, attr, val) == 0) { 1520 possibleMatch &= ~(1<<i); 1521 } 1522 } 1523 } 1524 1525 // now, handle the attributes which have a useful default value 1526 for (size_t j=0 ; j<NELEM(config_defaults) ; j++) { 1527 // see if this attribute was specified, if not apply its 1528 // default value 1529 if (binarySearch<config_pair_t>( 1530 (config_pair_t const*)attrib_list, 1531 0, numAttributes-1, 1532 config_defaults[j].key) < 0) 1533 { 1534 for (int i=0 ; i<numConfigs ; i++) { 1535 if (!(possibleMatch & (1<<i))) 1536 continue; 1537 if (isAttributeMatching(i, 1538 config_defaults[j].key, 1539 config_defaults[j].value) == 0) 1540 { 1541 possibleMatch &= ~(1<<i); 1542 } 1543 } 1544 } 1545 } 1546 1547 // return the configurations found 1548 int n=0; 1549 if (possibleMatch) { 1550 if (configs) { 1551 for (int i=0 ; config_size && i<numConfigs ; i++) { 1552 if (possibleMatch & (1<<i)) { 1553 *configs++ = (EGLConfig)i; 1554 config_size--; 1555 n++; 1556 } 1557 } 1558 } else { 1559 for (int i=0 ; i<numConfigs ; i++) { 1560 if (possibleMatch & (1<<i)) { 1561 n++; 1562 } 1563 } 1564 } 1565 } 1566 *num_config = n; 1567 return EGL_TRUE; 1568} 1569 1570EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1571 EGLint attribute, EGLint *value) 1572{ 1573 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1574 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1575 1576 return getConfigAttrib(dpy, config, attribute, value); 1577} 1578 1579// ---------------------------------------------------------------------------- 1580// surfaces 1581// ---------------------------------------------------------------------------- 1582 1583EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1584 NativeWindowType window, 1585 const EGLint *attrib_list) 1586{ 1587 return createWindowSurface(dpy, config, window, attrib_list); 1588} 1589 1590EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1591 NativePixmapType pixmap, 1592 const EGLint *attrib_list) 1593{ 1594 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1595} 1596 1597EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1598 const EGLint *attrib_list) 1599{ 1600 return createPbufferSurface(dpy, config, attrib_list); 1601} 1602 1603EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1604{ 1605 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1606 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1607 if (eglSurface != EGL_NO_SURFACE) { 1608 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1609 if (!surface->isValid()) 1610 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1611 if (surface->dpy != dpy) 1612 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1613 if (surface->ctx) { 1614 // FIXME: this surface is current check what the spec says 1615 surface->disconnect(); 1616 surface->ctx = 0; 1617 } 1618 delete surface; 1619 } 1620 return EGL_TRUE; 1621} 1622 1623EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1624 EGLint attribute, EGLint *value) 1625{ 1626 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1627 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1628 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1629 if (!surface->isValid()) 1630 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1631 if (surface->dpy != dpy) 1632 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1633 1634 EGLBoolean ret = EGL_TRUE; 1635 switch (attribute) { 1636 case EGL_CONFIG_ID: 1637 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1638 break; 1639 case EGL_WIDTH: 1640 *value = surface->getWidth(); 1641 break; 1642 case EGL_HEIGHT: 1643 *value = surface->getHeight(); 1644 break; 1645 case EGL_LARGEST_PBUFFER: 1646 // not modified for a window or pixmap surface 1647 break; 1648 case EGL_TEXTURE_FORMAT: 1649 *value = EGL_NO_TEXTURE; 1650 break; 1651 case EGL_TEXTURE_TARGET: 1652 *value = EGL_NO_TEXTURE; 1653 break; 1654 case EGL_MIPMAP_TEXTURE: 1655 *value = EGL_FALSE; 1656 break; 1657 case EGL_MIPMAP_LEVEL: 1658 *value = 0; 1659 break; 1660 case EGL_RENDER_BUFFER: 1661 // TODO: return the real RENDER_BUFFER here 1662 *value = EGL_BACK_BUFFER; 1663 break; 1664 case EGL_HORIZONTAL_RESOLUTION: 1665 // pixel/mm * EGL_DISPLAY_SCALING 1666 *value = surface->getHorizontalResolution(); 1667 break; 1668 case EGL_VERTICAL_RESOLUTION: 1669 // pixel/mm * EGL_DISPLAY_SCALING 1670 *value = surface->getVerticalResolution(); 1671 break; 1672 case EGL_PIXEL_ASPECT_RATIO: { 1673 // w/h * EGL_DISPLAY_SCALING 1674 int wr = surface->getHorizontalResolution(); 1675 int hr = surface->getVerticalResolution(); 1676 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1677 } break; 1678 case EGL_SWAP_BEHAVIOR: 1679 *value = surface->getSwapBehavior(); 1680 break; 1681 default: 1682 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1683 } 1684 return ret; 1685} 1686 1687EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1688 EGLContext share_list, const EGLint *attrib_list) 1689{ 1690 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1691 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1692 1693 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1694 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1695 1696 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1697 c->flags = egl_context_t::NEVER_CURRENT; 1698 c->dpy = dpy; 1699 c->config = config; 1700 c->read = 0; 1701 c->draw = 0; 1702 return (EGLContext)gl; 1703} 1704 1705EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1706{ 1707 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1708 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1709 egl_context_t* c = egl_context_t::context(ctx); 1710 if (c->flags & egl_context_t::IS_CURRENT) 1711 setGlThreadSpecific(0); 1712 ogles_uninit((ogles_context_t*)ctx); 1713 return EGL_TRUE; 1714} 1715 1716EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1717 EGLSurface read, EGLContext ctx) 1718{ 1719 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1720 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1721 if (draw) { 1722 egl_surface_t* s = (egl_surface_t*)draw; 1723 if (!s->isValid()) 1724 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1725 if (s->dpy != dpy) 1726 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1727 // TODO: check that draw is compatible with the context 1728 } 1729 if (read && read!=draw) { 1730 egl_surface_t* s = (egl_surface_t*)read; 1731 if (!s->isValid()) 1732 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1733 if (s->dpy != dpy) 1734 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1735 // TODO: check that read is compatible with the context 1736 } 1737 1738 EGLContext current_ctx = EGL_NO_CONTEXT; 1739 1740 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1741 return setError(EGL_BAD_MATCH, EGL_FALSE); 1742 1743 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1744 return setError(EGL_BAD_MATCH, EGL_FALSE); 1745 1746 if (ctx == EGL_NO_CONTEXT) { 1747 // if we're detaching, we need the current context 1748 current_ctx = (EGLContext)getGlThreadSpecific(); 1749 } else { 1750 egl_context_t* c = egl_context_t::context(ctx); 1751 egl_surface_t* d = (egl_surface_t*)draw; 1752 egl_surface_t* r = (egl_surface_t*)read; 1753 if ((d && d->ctx && d->ctx != ctx) || 1754 (r && r->ctx && r->ctx != ctx)) { 1755 // one of the surface is bound to a context in another thread 1756 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1757 } 1758 } 1759 1760 ogles_context_t* gl = (ogles_context_t*)ctx; 1761 if (makeCurrent(gl) == 0) { 1762 if (ctx) { 1763 egl_context_t* c = egl_context_t::context(ctx); 1764 egl_surface_t* d = (egl_surface_t*)draw; 1765 egl_surface_t* r = (egl_surface_t*)read; 1766 1767 if (c->draw) { 1768 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1769 s->disconnect(); 1770 } 1771 if (c->read) { 1772 // FIXME: unlock/disconnect the read surface too 1773 } 1774 1775 c->draw = draw; 1776 c->read = read; 1777 1778 if (c->flags & egl_context_t::NEVER_CURRENT) { 1779 c->flags &= ~egl_context_t::NEVER_CURRENT; 1780 GLint w = 0; 1781 GLint h = 0; 1782 if (draw) { 1783 w = d->getWidth(); 1784 h = d->getHeight(); 1785 } 1786 ogles_surfaceport(gl, 0, 0); 1787 ogles_viewport(gl, 0, 0, w, h); 1788 ogles_scissor(gl, 0, 0, w, h); 1789 } 1790 if (d) { 1791 if (d->connect() == EGL_FALSE) { 1792 return EGL_FALSE; 1793 } 1794 d->ctx = ctx; 1795 d->bindDrawSurface(gl); 1796 } 1797 if (r) { 1798 // FIXME: lock/connect the read surface too 1799 r->ctx = ctx; 1800 r->bindReadSurface(gl); 1801 } 1802 } else { 1803 // if surfaces were bound to the context bound to this thread 1804 // mark then as unbound. 1805 if (current_ctx) { 1806 egl_context_t* c = egl_context_t::context(current_ctx); 1807 egl_surface_t* d = (egl_surface_t*)c->draw; 1808 egl_surface_t* r = (egl_surface_t*)c->read; 1809 if (d) { 1810 c->draw = 0; 1811 d->ctx = EGL_NO_CONTEXT; 1812 d->disconnect(); 1813 } 1814 if (r) { 1815 c->read = 0; 1816 r->ctx = EGL_NO_CONTEXT; 1817 // FIXME: unlock/disconnect the read surface too 1818 } 1819 } 1820 } 1821 return EGL_TRUE; 1822 } 1823 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1824} 1825 1826EGLContext eglGetCurrentContext(void) 1827{ 1828 // eglGetCurrentContext returns the current EGL rendering context, 1829 // as specified by eglMakeCurrent. If no context is current, 1830 // EGL_NO_CONTEXT is returned. 1831 return (EGLContext)getGlThreadSpecific(); 1832} 1833 1834EGLSurface eglGetCurrentSurface(EGLint readdraw) 1835{ 1836 // eglGetCurrentSurface returns the read or draw surface attached 1837 // to the current EGL rendering context, as specified by eglMakeCurrent. 1838 // If no context is current, EGL_NO_SURFACE is returned. 1839 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1840 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1841 egl_context_t* c = egl_context_t::context(ctx); 1842 if (readdraw == EGL_READ) { 1843 return c->read; 1844 } else if (readdraw == EGL_DRAW) { 1845 return c->draw; 1846 } 1847 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1848} 1849 1850EGLDisplay eglGetCurrentDisplay(void) 1851{ 1852 // eglGetCurrentDisplay returns the current EGL display connection 1853 // for the current EGL rendering context, as specified by eglMakeCurrent. 1854 // If no context is current, EGL_NO_DISPLAY is returned. 1855 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1856 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1857 egl_context_t* c = egl_context_t::context(ctx); 1858 return c->dpy; 1859} 1860 1861EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1862 EGLint attribute, EGLint *value) 1863{ 1864 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1865 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1866 egl_context_t* c = egl_context_t::context(ctx); 1867 switch (attribute) { 1868 case EGL_CONFIG_ID: 1869 // Returns the ID of the EGL frame buffer configuration with 1870 // respect to which the context was created 1871 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1872 } 1873 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1874} 1875 1876EGLBoolean eglWaitGL(void) 1877{ 1878 return EGL_TRUE; 1879} 1880 1881EGLBoolean eglWaitNative(EGLint engine) 1882{ 1883 return EGL_TRUE; 1884} 1885 1886EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1887{ 1888 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1889 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1890 1891 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1892 if (!d->isValid()) 1893 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1894 if (d->dpy != dpy) 1895 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1896 1897 // post the surface 1898 d->swapBuffers(); 1899 1900 // if it's bound to a context, update the buffer 1901 if (d->ctx != EGL_NO_CONTEXT) { 1902 d->bindDrawSurface((ogles_context_t*)d->ctx); 1903 // if this surface is also the read surface of the context 1904 // it is bound to, make sure to update the read buffer as well. 1905 // The EGL spec is a little unclear about this. 1906 egl_context_t* c = egl_context_t::context(d->ctx); 1907 if (c->read == draw) { 1908 d->bindReadSurface((ogles_context_t*)d->ctx); 1909 } 1910 } 1911 1912 return EGL_TRUE; 1913} 1914 1915EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1916 NativePixmapType target) 1917{ 1918 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1919 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1920 // TODO: eglCopyBuffers() 1921 return EGL_FALSE; 1922} 1923 1924EGLint eglGetError(void) 1925{ 1926 return getError(); 1927} 1928 1929const char* eglQueryString(EGLDisplay dpy, EGLint name) 1930{ 1931 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1932 return setError(EGL_BAD_DISPLAY, (const char*)0); 1933 1934 switch (name) { 1935 case EGL_VENDOR: 1936 return gVendorString; 1937 case EGL_VERSION: 1938 return gVersionString; 1939 case EGL_EXTENSIONS: 1940 return gExtensionsString; 1941 case EGL_CLIENT_APIS: 1942 return gClientApiString; 1943 } 1944 return setError(EGL_BAD_PARAMETER, (const char *)0); 1945} 1946 1947// ---------------------------------------------------------------------------- 1948// EGL 1.1 1949// ---------------------------------------------------------------------------- 1950 1951EGLBoolean eglSurfaceAttrib( 1952 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1953{ 1954 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1955 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1956 // TODO: eglSurfaceAttrib() 1957 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1958} 1959 1960EGLBoolean eglBindTexImage( 1961 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1962{ 1963 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1964 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1965 // TODO: eglBindTexImage() 1966 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1967} 1968 1969EGLBoolean eglReleaseTexImage( 1970 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1971{ 1972 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1973 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1974 // TODO: eglReleaseTexImage() 1975 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1976} 1977 1978EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1979{ 1980 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1981 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1982 // TODO: eglSwapInterval() 1983 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1984} 1985 1986// ---------------------------------------------------------------------------- 1987// EGL 1.2 1988// ---------------------------------------------------------------------------- 1989 1990EGLBoolean eglBindAPI(EGLenum api) 1991{ 1992 if (api != EGL_OPENGL_ES_API) 1993 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1994 return EGL_TRUE; 1995} 1996 1997EGLenum eglQueryAPI(void) 1998{ 1999 return EGL_OPENGL_ES_API; 2000} 2001 2002EGLBoolean eglWaitClient(void) 2003{ 2004 glFinish(); 2005 return EGL_TRUE; 2006} 2007 2008EGLBoolean eglReleaseThread(void) 2009{ 2010 // TODO: eglReleaseThread() 2011 return EGL_TRUE; 2012} 2013 2014EGLSurface eglCreatePbufferFromClientBuffer( 2015 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 2016 EGLConfig config, const EGLint *attrib_list) 2017{ 2018 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2019 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 2020 // TODO: eglCreatePbufferFromClientBuffer() 2021 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 2022} 2023 2024// ---------------------------------------------------------------------------- 2025// EGL_EGLEXT_VERSION 3 2026// ---------------------------------------------------------------------------- 2027 2028void (*eglGetProcAddress (const char *procname))() 2029{ 2030 extention_map_t const * const map = gExtentionMap; 2031 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 2032 if (!strcmp(procname, map[i].name)) { 2033 return map[i].address; 2034 } 2035 } 2036 return NULL; 2037} 2038 2039EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 2040 const EGLint *attrib_list) 2041{ 2042 EGLBoolean result = EGL_FALSE; 2043 return result; 2044} 2045 2046EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 2047{ 2048 EGLBoolean result = EGL_FALSE; 2049 return result; 2050} 2051 2052EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 2053 EGLClientBuffer buffer, const EGLint *attrib_list) 2054{ 2055 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2056 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 2057 } 2058 if (ctx != EGL_NO_CONTEXT) { 2059 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2060 } 2061 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2062 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2063 } 2064 2065 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 2066 2067 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2068 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2069 2070 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2071 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2072 2073 native_buffer->common.incRef(&native_buffer->common); 2074 return (EGLImageKHR)native_buffer; 2075} 2076 2077EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2078{ 2079 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2080 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2081 } 2082 2083 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 2084 2085 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2086 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2087 2088 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2089 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2090 2091 native_buffer->common.decRef(&native_buffer->common); 2092 2093 return EGL_TRUE; 2094} 2095 2096// ---------------------------------------------------------------------------- 2097// ANDROID extensions 2098// ---------------------------------------------------------------------------- 2099 2100EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2101 EGLint left, EGLint top, EGLint width, EGLint height) 2102{ 2103 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2104 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2105 2106 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2107 if (!d->isValid()) 2108 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2109 if (d->dpy != dpy) 2110 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2111 2112 // post the surface 2113 d->setSwapRectangle(left, top, width, height); 2114 2115 return EGL_TRUE; 2116} 2117 2118EGLClientBuffer eglGetRenderBufferANDROID(EGLDisplay dpy, EGLSurface draw) 2119{ 2120 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2121 return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0); 2122 2123 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2124 if (!d->isValid()) 2125 return setError(EGL_BAD_SURFACE, (EGLClientBuffer)0); 2126 if (d->dpy != dpy) 2127 return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0); 2128 2129 // post the surface 2130 return d->getRenderBuffer(); 2131} 2132