egl.cpp revision 613493c424a8d62ecbcd7b90cb1008d569e93746
1/* 2** 3** Copyright 2007 The Android Open Source Project 4** 5** Licensed under the Apache License Version 2.0(the "License"); 6** you may not use this file except in compliance with the License. 7** You may obtain a copy of the License at 8** 9** http://www.apache.org/licenses/LICENSE-2.0 10** 11** Unless required by applicable law or agreed to in writing software 12** distributed under the License is distributed on an "AS IS" BASIS 13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND either express or implied. 14** See the License for the specific language governing permissions and 15** limitations under the License. 16*/ 17 18#include <assert.h> 19#include <errno.h> 20#include <stdlib.h> 21#include <stdio.h> 22#include <string.h> 23#include <unistd.h> 24#include <fcntl.h> 25#include <sys/ioctl.h> 26#include <sys/types.h> 27#include <sys/mman.h> 28 29#include <cutils/log.h> 30#include <cutils/atomic.h> 31 32#include <utils/threads.h> 33 34#include <EGL/egl.h> 35#include <EGL/eglext.h> 36#include <GLES/gl.h> 37#include <GLES/glext.h> 38 39#include <pixelflinger/format.h> 40#include <pixelflinger/pixelflinger.h> 41 42#include <private/ui/android_natives_priv.h> 43#include <private/ui/sw_gralloc_handle.h> 44 45#include <hardware/copybit.h> 46 47#include "context.h" 48#include "state.h" 49#include "texture.h" 50#include "matrix.h" 51 52#undef NELEM 53#define NELEM(x) (sizeof(x)/sizeof(*(x))) 54 55// ---------------------------------------------------------------------------- 56namespace android { 57// ---------------------------------------------------------------------------- 58 59const unsigned int NUM_DISPLAYS = 1; 60 61static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER; 62static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER; 63static pthread_key_t gEGLErrorKey = -1; 64#ifndef HAVE_ANDROID_OS 65namespace gl { 66pthread_key_t gGLKey = -1; 67}; // namespace gl 68#endif 69 70template<typename T> 71static T setError(GLint error, T returnValue) { 72 if (ggl_unlikely(gEGLErrorKey == -1)) { 73 pthread_mutex_lock(&gErrorKeyMutex); 74 if (gEGLErrorKey == -1) 75 pthread_key_create(&gEGLErrorKey, NULL); 76 pthread_mutex_unlock(&gErrorKeyMutex); 77 } 78 pthread_setspecific(gEGLErrorKey, (void*)error); 79 return returnValue; 80} 81 82static GLint getError() { 83 if (ggl_unlikely(gEGLErrorKey == -1)) 84 return EGL_SUCCESS; 85 GLint error = (GLint)pthread_getspecific(gEGLErrorKey); 86 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS); 87 return error; 88} 89 90// ---------------------------------------------------------------------------- 91 92struct egl_display_t 93{ 94 egl_display_t() : type(0), initialized(0) { } 95 96 static egl_display_t& get_display(EGLDisplay dpy); 97 98 static EGLBoolean is_valid(EGLDisplay dpy) { 99 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE; 100 } 101 102 NativeDisplayType type; 103 volatile int32_t initialized; 104}; 105 106static egl_display_t gDisplays[NUM_DISPLAYS]; 107 108egl_display_t& egl_display_t::get_display(EGLDisplay dpy) { 109 return gDisplays[uintptr_t(dpy)-1U]; 110} 111 112struct egl_context_t { 113 enum { 114 IS_CURRENT = 0x00010000, 115 NEVER_CURRENT = 0x00020000 116 }; 117 uint32_t flags; 118 EGLDisplay dpy; 119 EGLConfig config; 120 EGLSurface read; 121 EGLSurface draw; 122 123 static inline egl_context_t* context(EGLContext ctx) { 124 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx); 125 return static_cast<egl_context_t*>(gl->rasterizer.base); 126 } 127}; 128 129// ---------------------------------------------------------------------------- 130 131struct egl_surface_t 132{ 133 enum { 134 PAGE_FLIP = 0x00000001, 135 MAGIC = 0x31415265 136 }; 137 138 uint32_t magic; 139 EGLDisplay dpy; 140 EGLConfig config; 141 EGLContext ctx; 142 143 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat); 144 virtual ~egl_surface_t(); 145 bool isValid() const; 146 virtual bool initCheck() const = 0; 147 148 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 149 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 150 virtual EGLBoolean connect() { return EGL_TRUE; } 151 virtual void disconnect() {} 152 virtual EGLint getWidth() const = 0; 153 virtual EGLint getHeight() const = 0; 154 155 virtual EGLint getHorizontalResolution() const; 156 virtual EGLint getVerticalResolution() const; 157 virtual EGLint getRefreshRate() const; 158 virtual EGLint getSwapBehavior() const; 159 virtual EGLBoolean swapBuffers(); 160 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 161protected: 162 GGLSurface depth; 163}; 164 165egl_surface_t::egl_surface_t(EGLDisplay dpy, 166 EGLConfig config, 167 int32_t depthFormat) 168 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 169{ 170 depth.version = sizeof(GGLSurface); 171 depth.data = 0; 172 depth.format = depthFormat; 173} 174egl_surface_t::~egl_surface_t() 175{ 176 magic = 0; 177 free(depth.data); 178} 179bool egl_surface_t::isValid() const { 180 LOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this); 181 return magic == MAGIC; 182} 183 184EGLBoolean egl_surface_t::swapBuffers() { 185 return EGL_FALSE; 186} 187EGLint egl_surface_t::getHorizontalResolution() const { 188 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 189} 190EGLint egl_surface_t::getVerticalResolution() const { 191 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 192} 193EGLint egl_surface_t::getRefreshRate() const { 194 return (60 * EGL_DISPLAY_SCALING); 195} 196EGLint egl_surface_t::getSwapBehavior() const { 197 return EGL_BUFFER_PRESERVED; 198} 199EGLBoolean egl_surface_t::setSwapRectangle( 200 EGLint l, EGLint t, EGLint w, EGLint h) 201{ 202 return EGL_FALSE; 203} 204 205// ---------------------------------------------------------------------------- 206 207struct egl_window_surface_v2_t : public egl_surface_t 208{ 209 egl_window_surface_v2_t( 210 EGLDisplay dpy, EGLConfig config, 211 int32_t depthFormat, 212 ANativeWindow* window); 213 214 ~egl_window_surface_v2_t(); 215 216 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails 217 virtual EGLBoolean swapBuffers(); 218 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 219 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 220 virtual EGLBoolean connect(); 221 virtual void disconnect(); 222 virtual EGLint getWidth() const { return width; } 223 virtual EGLint getHeight() const { return height; } 224 virtual EGLint getHorizontalResolution() const; 225 virtual EGLint getVerticalResolution() const; 226 virtual EGLint getRefreshRate() const; 227 virtual EGLint getSwapBehavior() const; 228 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 229 230private: 231 status_t lock(android_native_buffer_t* buf, int usage, void** vaddr); 232 status_t unlock(android_native_buffer_t* buf); 233 ANativeWindow* nativeWindow; 234 android_native_buffer_t* buffer; 235 android_native_buffer_t* previousBuffer; 236 gralloc_module_t const* module; 237 copybit_device_t* blitengine; 238 int width; 239 int height; 240 void* bits; 241 GGLFormat const* pixelFormatTable; 242 243 struct Rect { 244 inline Rect() { }; 245 inline Rect(int32_t w, int32_t h) 246 : left(0), top(0), right(w), bottom(h) { } 247 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 248 : left(l), top(t), right(r), bottom(b) { } 249 Rect& andSelf(const Rect& r) { 250 left = max(left, r.left); 251 top = max(top, r.top); 252 right = min(right, r.right); 253 bottom = min(bottom, r.bottom); 254 return *this; 255 } 256 bool isEmpty() const { 257 return (left>=right || top>=bottom); 258 } 259 void dump(char const* what) { 260 LOGD("%s { %5d, %5d, w=%5d, h=%5d }", 261 what, left, top, right-left, bottom-top); 262 } 263 264 int32_t left; 265 int32_t top; 266 int32_t right; 267 int32_t bottom; 268 }; 269 270 struct Region { 271 inline Region() : count(0) { } 272 typedef Rect const* const_iterator; 273 const_iterator begin() const { return storage; } 274 const_iterator end() const { return storage+count; } 275 static Region subtract(const Rect& lhs, const Rect& rhs) { 276 Region reg; 277 Rect* storage = reg.storage; 278 if (!lhs.isEmpty()) { 279 if (lhs.top < rhs.top) { // top rect 280 storage->left = lhs.left; 281 storage->top = lhs.top; 282 storage->right = lhs.right; 283 storage->bottom = rhs.top; 284 storage++; 285 } 286 const int32_t top = max(lhs.top, rhs.top); 287 const int32_t bot = min(lhs.bottom, rhs.bottom); 288 if (top < bot) { 289 if (lhs.left < rhs.left) { // left-side rect 290 storage->left = lhs.left; 291 storage->top = top; 292 storage->right = rhs.left; 293 storage->bottom = bot; 294 storage++; 295 } 296 if (lhs.right > rhs.right) { // right-side rect 297 storage->left = rhs.right; 298 storage->top = top; 299 storage->right = lhs.right; 300 storage->bottom = bot; 301 storage++; 302 } 303 } 304 if (lhs.bottom > rhs.bottom) { // bottom rect 305 storage->left = lhs.left; 306 storage->top = rhs.bottom; 307 storage->right = lhs.right; 308 storage->bottom = lhs.bottom; 309 storage++; 310 } 311 reg.count = storage - reg.storage; 312 } 313 return reg; 314 } 315 bool isEmpty() const { 316 return count<=0; 317 } 318 private: 319 Rect storage[4]; 320 ssize_t count; 321 }; 322 323 struct region_iterator : public copybit_region_t { 324 region_iterator(const Region& region) 325 : b(region.begin()), e(region.end()) { 326 this->next = iterate; 327 } 328 private: 329 static int iterate(copybit_region_t const * self, copybit_rect_t* rect) { 330 region_iterator const* me = static_cast<region_iterator const*>(self); 331 if (me->b != me->e) { 332 *reinterpret_cast<Rect*>(rect) = *me->b++; 333 return 1; 334 } 335 return 0; 336 } 337 mutable Region::const_iterator b; 338 Region::const_iterator const e; 339 }; 340 341 void copyBlt( 342 android_native_buffer_t* dst, void* dst_vaddr, 343 android_native_buffer_t* src, void const* src_vaddr, 344 const Region& clip); 345 346 Rect dirtyRegion; 347 Rect oldDirtyRegion; 348}; 349 350egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 351 EGLConfig config, 352 int32_t depthFormat, 353 ANativeWindow* window) 354 : egl_surface_t(dpy, config, depthFormat), 355 nativeWindow(window), buffer(0), previousBuffer(0), module(0), 356 blitengine(0), bits(NULL) 357{ 358 hw_module_t const* pModule; 359 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 360 module = reinterpret_cast<gralloc_module_t const*>(pModule); 361 362 if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &pModule) == 0) { 363 copybit_open(pModule, &blitengine); 364 } 365 366 pixelFormatTable = gglGetPixelFormatTable(); 367 368 // keep a reference on the window 369 nativeWindow->common.incRef(&nativeWindow->common); 370 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width); 371 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height); 372} 373 374egl_window_surface_v2_t::~egl_window_surface_v2_t() { 375 if (buffer) { 376 buffer->common.decRef(&buffer->common); 377 } 378 if (previousBuffer) { 379 previousBuffer->common.decRef(&previousBuffer->common); 380 } 381 nativeWindow->common.decRef(&nativeWindow->common); 382 if (blitengine) { 383 copybit_close(blitengine); 384 } 385} 386 387EGLBoolean egl_window_surface_v2_t::connect() 388{ 389 // we're intending to do software rendering 390 native_window_set_usage(nativeWindow, 391 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); 392 393 // dequeue a buffer 394 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) { 395 return setError(EGL_BAD_ALLOC, EGL_FALSE); 396 } 397 398 // allocate a corresponding depth-buffer 399 width = buffer->width; 400 height = buffer->height; 401 if (depth.format) { 402 depth.width = width; 403 depth.height = height; 404 depth.stride = depth.width; // use the width here 405 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 406 if (depth.data == 0) { 407 return setError(EGL_BAD_ALLOC, EGL_FALSE); 408 } 409 } 410 411 // keep a reference on the buffer 412 buffer->common.incRef(&buffer->common); 413 414 // Lock the buffer 415 nativeWindow->lockBuffer(nativeWindow, buffer); 416 // pin the buffer down 417 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 418 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 419 LOGE("connect() failed to lock buffer %p (%ux%u)", 420 buffer, buffer->width, buffer->height); 421 return setError(EGL_BAD_ACCESS, EGL_FALSE); 422 // FIXME: we should make sure we're not accessing the buffer anymore 423 } 424 return EGL_TRUE; 425} 426 427void egl_window_surface_v2_t::disconnect() 428{ 429 if (buffer && bits) { 430 bits = NULL; 431 unlock(buffer); 432 } 433 // enqueue the last frame 434 nativeWindow->queueBuffer(nativeWindow, buffer); 435 if (buffer) { 436 buffer->common.decRef(&buffer->common); 437 buffer = 0; 438 } 439 if (previousBuffer) { 440 previousBuffer->common.decRef(&previousBuffer->common); 441 previousBuffer = 0; 442 } 443} 444 445status_t egl_window_surface_v2_t::lock( 446 android_native_buffer_t* buf, int usage, void** vaddr) 447{ 448 int err; 449 if (sw_gralloc_handle_t::validate(buf->handle) < 0) { 450 err = module->lock(module, buf->handle, 451 usage, 0, 0, buf->width, buf->height, vaddr); 452 } else { 453 sw_gralloc_handle_t const* hnd = 454 reinterpret_cast<sw_gralloc_handle_t const*>(buf->handle); 455 *vaddr = (void*)hnd->base; 456 err = NO_ERROR; 457 } 458 return err; 459} 460 461status_t egl_window_surface_v2_t::unlock(android_native_buffer_t* buf) 462{ 463 if (!buf) return BAD_VALUE; 464 int err = NO_ERROR; 465 if (sw_gralloc_handle_t::validate(buf->handle) < 0) { 466 err = module->unlock(module, buf->handle); 467 } 468 return err; 469} 470 471void egl_window_surface_v2_t::copyBlt( 472 android_native_buffer_t* dst, void* dst_vaddr, 473 android_native_buffer_t* src, void const* src_vaddr, 474 const Region& clip) 475{ 476 // FIXME: use copybit if possible 477 // NOTE: dst and src must be the same format 478 479 status_t err = NO_ERROR; 480 copybit_device_t* const copybit = blitengine; 481 if (copybit) { 482 copybit_image_t simg; 483 simg.w = src->stride; 484 simg.h = src->height; 485 simg.format = src->format; 486 simg.handle = const_cast<native_handle_t*>(src->handle); 487 488 copybit_image_t dimg; 489 dimg.w = dst->stride; 490 dimg.h = dst->height; 491 dimg.format = dst->format; 492 dimg.handle = const_cast<native_handle_t*>(dst->handle); 493 494 copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0); 495 copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255); 496 copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_DISABLE); 497 region_iterator it(clip); 498 err = copybit->blit(copybit, &dimg, &simg, &it); 499 if (err != NO_ERROR) { 500 LOGE("copybit failed (%s)", strerror(err)); 501 } 502 } 503 504 if (!copybit || err) { 505 Region::const_iterator cur = clip.begin(); 506 Region::const_iterator end = clip.end(); 507 508 const size_t bpp = pixelFormatTable[src->format].size; 509 const size_t dbpr = dst->stride * bpp; 510 const size_t sbpr = src->stride * bpp; 511 512 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 513 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 514 515 while (cur != end) { 516 const Rect& r(*cur++); 517 ssize_t w = r.right - r.left; 518 ssize_t h = r.bottom - r.top; 519 if (w <= 0 || h<=0) continue; 520 size_t size = w * bpp; 521 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 522 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 523 if (dbpr==sbpr && size==sbpr) { 524 size *= h; 525 h = 1; 526 } 527 do { 528 memcpy(d, s, size); 529 d += dbpr; 530 s += sbpr; 531 } while (--h > 0); 532 } 533 } 534} 535 536EGLBoolean egl_window_surface_v2_t::swapBuffers() 537{ 538 if (!buffer) { 539 return setError(EGL_BAD_ACCESS, EGL_FALSE); 540 } 541 542 /* 543 * Handle eglSetSwapRectangleANDROID() 544 * We copyback from the front buffer 545 */ 546 if (!dirtyRegion.isEmpty()) { 547 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 548 if (previousBuffer) { 549 const Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 550 if (!copyBack.isEmpty()) { 551 void* prevBits; 552 if (lock(previousBuffer, 553 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 554 // copy from previousBuffer to buffer 555 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 556 unlock(previousBuffer); 557 } 558 } 559 } 560 oldDirtyRegion = dirtyRegion; 561 } 562 563 if (previousBuffer) { 564 previousBuffer->common.decRef(&previousBuffer->common); 565 previousBuffer = 0; 566 } 567 568 unlock(buffer); 569 previousBuffer = buffer; 570 nativeWindow->queueBuffer(nativeWindow, buffer); 571 buffer = 0; 572 573 // dequeue a new buffer 574 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) { 575 576 // TODO: lockBuffer should rather be executed when the very first 577 // direct rendering occurs. 578 nativeWindow->lockBuffer(nativeWindow, buffer); 579 580 // reallocate the depth-buffer if needed 581 if ((width != buffer->width) || (height != buffer->height)) { 582 // TODO: we probably should reset the swap rect here 583 // if the window size has changed 584 width = buffer->width; 585 height = buffer->height; 586 if (depth.data) { 587 free(depth.data); 588 depth.width = width; 589 depth.height = height; 590 depth.stride = buffer->stride; 591 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 592 if (depth.data == 0) { 593 setError(EGL_BAD_ALLOC, EGL_FALSE); 594 return EGL_FALSE; 595 } 596 } 597 } 598 599 // keep a reference on the buffer 600 buffer->common.incRef(&buffer->common); 601 602 // finally pin the buffer down 603 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 604 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 605 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 606 buffer, buffer->width, buffer->height); 607 return setError(EGL_BAD_ACCESS, EGL_FALSE); 608 // FIXME: we should make sure we're not accessing the buffer anymore 609 } 610 } else { 611 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE); 612 } 613 614 return EGL_TRUE; 615} 616 617EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 618 EGLint l, EGLint t, EGLint w, EGLint h) 619{ 620 dirtyRegion = Rect(l, t, l+w, t+h); 621 return EGL_TRUE; 622} 623 624EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 625{ 626 GGLSurface buffer; 627 buffer.version = sizeof(GGLSurface); 628 buffer.width = this->buffer->width; 629 buffer.height = this->buffer->height; 630 buffer.stride = this->buffer->stride; 631 buffer.data = (GGLubyte*)bits; 632 buffer.format = this->buffer->format; 633 gl->rasterizer.procs.colorBuffer(gl, &buffer); 634 if (depth.data != gl->rasterizer.state.buffers.depth.data) 635 gl->rasterizer.procs.depthBuffer(gl, &depth); 636 637 return EGL_TRUE; 638} 639EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 640{ 641 GGLSurface buffer; 642 buffer.version = sizeof(GGLSurface); 643 buffer.width = this->buffer->width; 644 buffer.height = this->buffer->height; 645 buffer.stride = this->buffer->stride; 646 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 647 buffer.format = this->buffer->format; 648 gl->rasterizer.procs.readBuffer(gl, &buffer); 649 return EGL_TRUE; 650} 651EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 652 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 653} 654EGLint egl_window_surface_v2_t::getVerticalResolution() const { 655 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 656} 657EGLint egl_window_surface_v2_t::getRefreshRate() const { 658 return (60 * EGL_DISPLAY_SCALING); // FIXME 659} 660EGLint egl_window_surface_v2_t::getSwapBehavior() const 661{ 662 /* 663 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 664 * the content of the swapped buffer. 665 * 666 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 667 * 668 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 669 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 670 * is, everything outside of this area is preserved. 671 * 672 * This implementation of EGL assumes the later case. 673 * 674 */ 675 676 return EGL_BUFFER_DESTROYED; 677} 678 679// ---------------------------------------------------------------------------- 680 681struct egl_pixmap_surface_t : public egl_surface_t 682{ 683 egl_pixmap_surface_t( 684 EGLDisplay dpy, EGLConfig config, 685 int32_t depthFormat, 686 egl_native_pixmap_t const * pixmap); 687 688 virtual ~egl_pixmap_surface_t() { } 689 690 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 691 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 692 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 693 virtual EGLint getWidth() const { return nativePixmap.width; } 694 virtual EGLint getHeight() const { return nativePixmap.height; } 695private: 696 egl_native_pixmap_t nativePixmap; 697}; 698 699egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 700 EGLConfig config, 701 int32_t depthFormat, 702 egl_native_pixmap_t const * pixmap) 703 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 704{ 705 if (depthFormat) { 706 depth.width = pixmap->width; 707 depth.height = pixmap->height; 708 depth.stride = depth.width; // use the width here 709 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 710 if (depth.data == 0) { 711 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 712 } 713 } 714} 715EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 716{ 717 GGLSurface buffer; 718 buffer.version = sizeof(GGLSurface); 719 buffer.width = nativePixmap.width; 720 buffer.height = nativePixmap.height; 721 buffer.stride = nativePixmap.stride; 722 buffer.data = nativePixmap.data; 723 buffer.format = nativePixmap.format; 724 725 gl->rasterizer.procs.colorBuffer(gl, &buffer); 726 if (depth.data != gl->rasterizer.state.buffers.depth.data) 727 gl->rasterizer.procs.depthBuffer(gl, &depth); 728 return EGL_TRUE; 729} 730EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 731{ 732 GGLSurface buffer; 733 buffer.version = sizeof(GGLSurface); 734 buffer.width = nativePixmap.width; 735 buffer.height = nativePixmap.height; 736 buffer.stride = nativePixmap.stride; 737 buffer.data = nativePixmap.data; 738 buffer.format = nativePixmap.format; 739 gl->rasterizer.procs.readBuffer(gl, &buffer); 740 return EGL_TRUE; 741} 742 743// ---------------------------------------------------------------------------- 744 745struct egl_pbuffer_surface_t : public egl_surface_t 746{ 747 egl_pbuffer_surface_t( 748 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 749 int32_t w, int32_t h, int32_t f); 750 751 virtual ~egl_pbuffer_surface_t(); 752 753 virtual bool initCheck() const { return pbuffer.data != 0; } 754 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 755 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 756 virtual EGLint getWidth() const { return pbuffer.width; } 757 virtual EGLint getHeight() const { return pbuffer.height; } 758private: 759 GGLSurface pbuffer; 760}; 761 762egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 763 EGLConfig config, int32_t depthFormat, 764 int32_t w, int32_t h, int32_t f) 765 : egl_surface_t(dpy, config, depthFormat) 766{ 767 size_t size = w*h; 768 switch (f) { 769 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 770 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 771 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 772 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break; 773 default: 774 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 775 pbuffer.data = 0; 776 break; 777 } 778 pbuffer.version = sizeof(GGLSurface); 779 pbuffer.width = w; 780 pbuffer.height = h; 781 pbuffer.stride = w; 782 pbuffer.data = (GGLubyte*)malloc(size); 783 pbuffer.format = f; 784 785 if (depthFormat) { 786 depth.width = pbuffer.width; 787 depth.height = pbuffer.height; 788 depth.stride = depth.width; // use the width here 789 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 790 if (depth.data == 0) { 791 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 792 return; 793 } 794 } 795} 796egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 797 free(pbuffer.data); 798} 799EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 800{ 801 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 802 if (depth.data != gl->rasterizer.state.buffers.depth.data) 803 gl->rasterizer.procs.depthBuffer(gl, &depth); 804 return EGL_TRUE; 805} 806EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 807{ 808 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 809 return EGL_TRUE; 810} 811 812// ---------------------------------------------------------------------------- 813 814struct config_pair_t { 815 GLint key; 816 GLint value; 817}; 818 819struct configs_t { 820 const config_pair_t* array; 821 int size; 822}; 823 824struct config_management_t { 825 GLint key; 826 bool (*match)(GLint reqValue, GLint confValue); 827 static bool atLeast(GLint reqValue, GLint confValue) { 828 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 829 } 830 static bool exact(GLint reqValue, GLint confValue) { 831 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 832 } 833 static bool mask(GLint reqValue, GLint confValue) { 834 return (confValue & reqValue) == reqValue; 835 } 836}; 837 838// ---------------------------------------------------------------------------- 839 840#define VERSION_MAJOR 1 841#define VERSION_MINOR 2 842static char const * const gVendorString = "Google Inc."; 843static char const * const gVersionString = "1.2 Android Driver 1.2.0"; 844static char const * const gClientApiString = "OpenGL ES"; 845static char const * const gExtensionsString = 846 "EGL_KHR_image_base " 847 // "KHR_image_pixmap " 848 "EGL_ANDROID_image_native_buffer " 849 "EGL_ANDROID_swap_rectangle " 850 ; 851 852// ---------------------------------------------------------------------------- 853 854struct extention_map_t { 855 const char * const name; 856 __eglMustCastToProperFunctionPointerType address; 857}; 858 859static const extention_map_t gExtentionMap[] = { 860 { "glDrawTexsOES", 861 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 862 { "glDrawTexiOES", 863 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 864 { "glDrawTexfOES", 865 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 866 { "glDrawTexxOES", 867 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 868 { "glDrawTexsvOES", 869 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 870 { "glDrawTexivOES", 871 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 872 { "glDrawTexfvOES", 873 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 874 { "glDrawTexxvOES", 875 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 876 { "glQueryMatrixxOES", 877 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 878 { "glEGLImageTargetTexture2DOES", 879 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 880 { "glEGLImageTargetRenderbufferStorageOES", 881 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 882 { "glClipPlanef", 883 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 884 { "glClipPlanex", 885 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 886 { "glBindBuffer", 887 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 888 { "glBufferData", 889 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 890 { "glBufferSubData", 891 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 892 { "glDeleteBuffers", 893 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 894 { "glGenBuffers", 895 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 896 { "eglCreateImageKHR", 897 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 898 { "eglDestroyImageKHR", 899 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 900 { "eglSetSwapRectangleANDROID", 901 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 902}; 903 904/* 905 * In the lists below, attributes names MUST be sorted. 906 * Additionally, all configs must be sorted according to 907 * the EGL specification. 908 */ 909 910static config_pair_t const config_base_attribute_list[] = { 911 { EGL_STENCIL_SIZE, 0 }, 912 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 913 { EGL_LEVEL, 0 }, 914 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 915 { EGL_MAX_PBUFFER_PIXELS, 916 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 917 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 918 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 919 { EGL_NATIVE_VISUAL_ID, 0 }, 920 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 921 { EGL_SAMPLES, 0 }, 922 { EGL_SAMPLE_BUFFERS, 0 }, 923 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 924 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 925 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 926 { EGL_TRANSPARENT_RED_VALUE, 0 }, 927 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 928 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 929 { EGL_MIN_SWAP_INTERVAL, 1 }, 930 { EGL_MAX_SWAP_INTERVAL, 1 }, 931 { EGL_LUMINANCE_SIZE, 0 }, 932 { EGL_ALPHA_MASK_SIZE, 0 }, 933 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER }, 934 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 935 { EGL_CONFORMANT, 0 } 936}; 937 938// These configs can override the base attribute list 939// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 940 941// 565 configs 942static config_pair_t const config_0_attribute_list[] = { 943 { EGL_BUFFER_SIZE, 16 }, 944 { EGL_ALPHA_SIZE, 0 }, 945 { EGL_BLUE_SIZE, 5 }, 946 { EGL_GREEN_SIZE, 6 }, 947 { EGL_RED_SIZE, 5 }, 948 { EGL_DEPTH_SIZE, 0 }, 949 { EGL_CONFIG_ID, 0 }, 950 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 951 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 952}; 953 954static config_pair_t const config_1_attribute_list[] = { 955 { EGL_BUFFER_SIZE, 16 }, 956 { EGL_ALPHA_SIZE, 0 }, 957 { EGL_BLUE_SIZE, 5 }, 958 { EGL_GREEN_SIZE, 6 }, 959 { EGL_RED_SIZE, 5 }, 960 { EGL_DEPTH_SIZE, 16 }, 961 { EGL_CONFIG_ID, 1 }, 962 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 963 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 964}; 965 966// RGB 888 configs 967static config_pair_t const config_2_attribute_list[] = { 968 { EGL_BUFFER_SIZE, 32 }, 969 { EGL_ALPHA_SIZE, 0 }, 970 { EGL_BLUE_SIZE, 8 }, 971 { EGL_GREEN_SIZE, 8 }, 972 { EGL_RED_SIZE, 8 }, 973 { EGL_DEPTH_SIZE, 0 }, 974 { EGL_CONFIG_ID, 6 }, 975 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 976 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 977}; 978 979static config_pair_t const config_3_attribute_list[] = { 980 { EGL_BUFFER_SIZE, 32 }, 981 { EGL_ALPHA_SIZE, 0 }, 982 { EGL_BLUE_SIZE, 8 }, 983 { EGL_GREEN_SIZE, 8 }, 984 { EGL_RED_SIZE, 8 }, 985 { EGL_DEPTH_SIZE, 16 }, 986 { EGL_CONFIG_ID, 7 }, 987 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 988 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 989}; 990 991// 8888 configs 992static config_pair_t const config_4_attribute_list[] = { 993 { EGL_BUFFER_SIZE, 32 }, 994 { EGL_ALPHA_SIZE, 8 }, 995 { EGL_BLUE_SIZE, 8 }, 996 { EGL_GREEN_SIZE, 8 }, 997 { EGL_RED_SIZE, 8 }, 998 { EGL_DEPTH_SIZE, 0 }, 999 { EGL_CONFIG_ID, 2 }, 1000 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 1001 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1002}; 1003 1004static config_pair_t const config_5_attribute_list[] = { 1005 { EGL_BUFFER_SIZE, 32 }, 1006 { EGL_ALPHA_SIZE, 8 }, 1007 { EGL_BLUE_SIZE, 8 }, 1008 { EGL_GREEN_SIZE, 8 }, 1009 { EGL_RED_SIZE, 8 }, 1010 { EGL_DEPTH_SIZE, 16 }, 1011 { EGL_CONFIG_ID, 3 }, 1012 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 1013 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1014}; 1015 1016// A8 configs 1017static config_pair_t const config_6_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, 0 }, 1024 { EGL_CONFIG_ID, 4 }, 1025 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 1026 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1027}; 1028 1029static config_pair_t const config_7_attribute_list[] = { 1030 { EGL_BUFFER_SIZE, 8 }, 1031 { EGL_ALPHA_SIZE, 8 }, 1032 { EGL_BLUE_SIZE, 0 }, 1033 { EGL_GREEN_SIZE, 0 }, 1034 { EGL_RED_SIZE, 0 }, 1035 { EGL_DEPTH_SIZE, 16 }, 1036 { EGL_CONFIG_ID, 5 }, 1037 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 1038 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1039}; 1040 1041static configs_t const gConfigs[] = { 1042 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 1043 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 1044 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 1045 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 1046 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 1047 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 1048 { config_6_attribute_list, NELEM(config_6_attribute_list) }, 1049 { config_7_attribute_list, NELEM(config_7_attribute_list) }, 1050}; 1051 1052static config_management_t const gConfigManagement[] = { 1053 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 1054 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1055 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1056 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1057 { EGL_RED_SIZE, config_management_t::atLeast }, 1058 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1059 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1060 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1061 { EGL_CONFIG_ID, config_management_t::exact }, 1062 { EGL_LEVEL, config_management_t::exact }, 1063 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::exact }, 1064 { EGL_MAX_PBUFFER_PIXELS, config_management_t::exact }, 1065 { EGL_MAX_PBUFFER_WIDTH, config_management_t::exact }, 1066 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1067 { EGL_NATIVE_VISUAL_ID, config_management_t::exact }, 1068 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1069 { EGL_SAMPLES, config_management_t::exact }, 1070 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1071 { EGL_SURFACE_TYPE, config_management_t::mask }, 1072 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1073 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1074 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1075 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1076 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1077 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1078 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1079 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1080 { EGL_LUMINANCE_SIZE, config_management_t::atLeast }, 1081 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast }, 1082 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact }, 1083 { EGL_RENDERABLE_TYPE, config_management_t::mask }, 1084 { EGL_CONFORMANT, config_management_t::mask } 1085}; 1086 1087 1088static config_pair_t const config_defaults[] = { 1089 // attributes that are not specified are simply ignored, if a particular 1090 // one needs not be ignored, it must be specified here, eg: 1091 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1092}; 1093 1094// ---------------------------------------------------------------------------- 1095 1096static status_t getConfigFormatInfo(EGLint configID, 1097 int32_t& pixelFormat, int32_t& depthFormat) 1098{ 1099 switch(configID) { 1100 case 0: 1101 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1102 depthFormat = 0; 1103 break; 1104 case 1: 1105 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1106 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1107 break; 1108 case 2: 1109 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1110 depthFormat = 0; 1111 break; 1112 case 3: 1113 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1114 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1115 break; 1116 case 4: 1117 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1118 depthFormat = 0; 1119 break; 1120 case 5: 1121 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1122 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1123 break; 1124 case 6: 1125 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1126 depthFormat = 0; 1127 break; 1128 case 7: 1129 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1130 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1131 break; 1132 default: 1133 return NAME_NOT_FOUND; 1134 } 1135 return NO_ERROR; 1136} 1137 1138// ---------------------------------------------------------------------------- 1139 1140template<typename T> 1141static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1142{ 1143 while (first <= last) { 1144 int mid = (first + last) / 2; 1145 if (key > sortedArray[mid].key) { 1146 first = mid + 1; 1147 } else if (key < sortedArray[mid].key) { 1148 last = mid - 1; 1149 } else { 1150 return mid; 1151 } 1152 } 1153 return -1; 1154} 1155 1156static int isAttributeMatching(int i, EGLint attr, EGLint val) 1157{ 1158 // look for the attribute in all of our configs 1159 config_pair_t const* configFound = gConfigs[i].array; 1160 int index = binarySearch<config_pair_t>( 1161 gConfigs[i].array, 1162 0, gConfigs[i].size-1, 1163 attr); 1164 if (index < 0) { 1165 configFound = config_base_attribute_list; 1166 index = binarySearch<config_pair_t>( 1167 config_base_attribute_list, 1168 0, NELEM(config_base_attribute_list)-1, 1169 attr); 1170 } 1171 if (index >= 0) { 1172 // attribute found, check if this config could match 1173 int cfgMgtIndex = binarySearch<config_management_t>( 1174 gConfigManagement, 1175 0, NELEM(gConfigManagement)-1, 1176 attr); 1177 if (cfgMgtIndex >= 0) { 1178 bool match = gConfigManagement[cfgMgtIndex].match( 1179 val, configFound[index].value); 1180 if (match) { 1181 // this config matches 1182 return 1; 1183 } 1184 } else { 1185 // attribute not found. this should NEVER happen. 1186 } 1187 } else { 1188 // error, this attribute doesn't exist 1189 } 1190 return 0; 1191} 1192 1193static int makeCurrent(ogles_context_t* gl) 1194{ 1195 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1196 if (gl) { 1197 egl_context_t* c = egl_context_t::context(gl); 1198 if (c->flags & egl_context_t::IS_CURRENT) { 1199 if (current != gl) { 1200 // it is an error to set a context current, if it's already 1201 // current to another thread 1202 return -1; 1203 } 1204 } else { 1205 if (current) { 1206 // mark the current context as not current, and flush 1207 glFlush(); 1208 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1209 } 1210 } 1211 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1212 // The context is not current, make it current! 1213 setGlThreadSpecific(gl); 1214 c->flags |= egl_context_t::IS_CURRENT; 1215 } 1216 } else { 1217 if (current) { 1218 // mark the current context as not current, and flush 1219 glFlush(); 1220 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1221 } 1222 // this thread has no context attached to it 1223 setGlThreadSpecific(0); 1224 } 1225 return 0; 1226} 1227 1228static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1229 EGLint attribute, EGLint *value) 1230{ 1231 size_t numConfigs = NELEM(gConfigs); 1232 int index = (int)config; 1233 if (uint32_t(index) >= numConfigs) 1234 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1235 1236 int attrIndex; 1237 attrIndex = binarySearch<config_pair_t>( 1238 gConfigs[index].array, 1239 0, gConfigs[index].size-1, 1240 attribute); 1241 if (attrIndex>=0) { 1242 *value = gConfigs[index].array[attrIndex].value; 1243 return EGL_TRUE; 1244 } 1245 1246 attrIndex = binarySearch<config_pair_t>( 1247 config_base_attribute_list, 1248 0, NELEM(config_base_attribute_list)-1, 1249 attribute); 1250 if (attrIndex>=0) { 1251 *value = config_base_attribute_list[attrIndex].value; 1252 return EGL_TRUE; 1253 } 1254 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1255} 1256 1257static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1258 NativeWindowType window, const EGLint *attrib_list) 1259{ 1260 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1261 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1262 if (window == 0) 1263 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1264 1265 EGLint surfaceType; 1266 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1267 return EGL_FALSE; 1268 1269 if (!(surfaceType & EGL_WINDOW_BIT)) 1270 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1271 1272 if (static_cast<ANativeWindow*>(window)->common.magic != 1273 ANDROID_NATIVE_WINDOW_MAGIC) { 1274 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1275 } 1276 1277 EGLint configID; 1278 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1279 return EGL_FALSE; 1280 1281 int32_t depthFormat; 1282 int32_t pixelFormat; 1283 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1284 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1285 } 1286 1287 // FIXME: we don't have access to the pixelFormat here just yet. 1288 // (it's possible that the surface is not fully initialized) 1289 // maybe this should be done after the page-flip 1290 //if (EGLint(info.format) != pixelFormat) 1291 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1292 1293 egl_surface_t* surface; 1294 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1295 static_cast<ANativeWindow*>(window)); 1296 1297 if (!surface->initCheck()) { 1298 // there was a problem in the ctor, the error 1299 // flag has been set. 1300 delete surface; 1301 surface = 0; 1302 } 1303 return surface; 1304} 1305 1306static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1307 NativePixmapType pixmap, const EGLint *attrib_list) 1308{ 1309 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1310 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1311 if (pixmap == 0) 1312 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1313 1314 EGLint surfaceType; 1315 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1316 return EGL_FALSE; 1317 1318 if (!(surfaceType & EGL_PIXMAP_BIT)) 1319 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1320 1321 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1322 sizeof(egl_native_pixmap_t)) { 1323 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1324 } 1325 1326 EGLint configID; 1327 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1328 return EGL_FALSE; 1329 1330 int32_t depthFormat; 1331 int32_t pixelFormat; 1332 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1333 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1334 } 1335 1336 if (pixmap->format != pixelFormat) 1337 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1338 1339 egl_surface_t* surface = 1340 new egl_pixmap_surface_t(dpy, config, depthFormat, 1341 static_cast<egl_native_pixmap_t*>(pixmap)); 1342 1343 if (!surface->initCheck()) { 1344 // there was a problem in the ctor, the error 1345 // flag has been set. 1346 delete surface; 1347 surface = 0; 1348 } 1349 return surface; 1350} 1351 1352static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1353 const EGLint *attrib_list) 1354{ 1355 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1356 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1357 1358 EGLint surfaceType; 1359 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1360 return EGL_FALSE; 1361 1362 if (!(surfaceType & EGL_PBUFFER_BIT)) 1363 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1364 1365 EGLint configID; 1366 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1367 return EGL_FALSE; 1368 1369 int32_t depthFormat; 1370 int32_t pixelFormat; 1371 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1372 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1373 } 1374 1375 int32_t w = 0; 1376 int32_t h = 0; 1377 while (attrib_list[0]) { 1378 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1379 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1380 attrib_list+=2; 1381 } 1382 1383 egl_surface_t* surface = 1384 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1385 1386 if (!surface->initCheck()) { 1387 // there was a problem in the ctor, the error 1388 // flag has been set. 1389 delete surface; 1390 surface = 0; 1391 } 1392 return surface; 1393} 1394 1395// ---------------------------------------------------------------------------- 1396}; // namespace android 1397// ---------------------------------------------------------------------------- 1398 1399using namespace android; 1400 1401// ---------------------------------------------------------------------------- 1402// Initialization 1403// ---------------------------------------------------------------------------- 1404 1405EGLDisplay eglGetDisplay(NativeDisplayType display) 1406{ 1407#ifndef HAVE_ANDROID_OS 1408 // this just needs to be done once 1409 if (gGLKey == -1) { 1410 pthread_mutex_lock(&gInitMutex); 1411 if (gGLKey == -1) 1412 pthread_key_create(&gGLKey, NULL); 1413 pthread_mutex_unlock(&gInitMutex); 1414 } 1415#endif 1416 if (display == EGL_DEFAULT_DISPLAY) { 1417 EGLDisplay dpy = (EGLDisplay)1; 1418 egl_display_t& d = egl_display_t::get_display(dpy); 1419 d.type = display; 1420 return dpy; 1421 } 1422 return EGL_NO_DISPLAY; 1423} 1424 1425EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1426{ 1427 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1428 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1429 1430 EGLBoolean res = EGL_TRUE; 1431 egl_display_t& d = egl_display_t::get_display(dpy); 1432 1433 if (android_atomic_inc(&d.initialized) == 0) { 1434 // initialize stuff here if needed 1435 //pthread_mutex_lock(&gInitMutex); 1436 //pthread_mutex_unlock(&gInitMutex); 1437 } 1438 1439 if (res == EGL_TRUE) { 1440 if (major != NULL) *major = VERSION_MAJOR; 1441 if (minor != NULL) *minor = VERSION_MINOR; 1442 } 1443 return res; 1444} 1445 1446EGLBoolean eglTerminate(EGLDisplay dpy) 1447{ 1448 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1449 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1450 1451 EGLBoolean res = EGL_TRUE; 1452 egl_display_t& d = egl_display_t::get_display(dpy); 1453 if (android_atomic_dec(&d.initialized) == 1) { 1454 // TODO: destroy all resources (surfaces, contexts, etc...) 1455 //pthread_mutex_lock(&gInitMutex); 1456 //pthread_mutex_unlock(&gInitMutex); 1457 } 1458 return res; 1459} 1460 1461// ---------------------------------------------------------------------------- 1462// configuration 1463// ---------------------------------------------------------------------------- 1464 1465EGLBoolean eglGetConfigs( EGLDisplay dpy, 1466 EGLConfig *configs, 1467 EGLint config_size, EGLint *num_config) 1468{ 1469 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1470 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1471 1472 GLint numConfigs = NELEM(gConfigs); 1473 if (!configs) { 1474 *num_config = numConfigs; 1475 return EGL_TRUE; 1476 } 1477 GLint i; 1478 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1479 *configs++ = (EGLConfig)i; 1480 } 1481 *num_config = i; 1482 return EGL_TRUE; 1483} 1484 1485EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1486 EGLConfig *configs, EGLint config_size, 1487 EGLint *num_config) 1488{ 1489 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1490 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1491 1492 if (ggl_unlikely(num_config==0)) { 1493 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1494 } 1495 1496 if (ggl_unlikely(attrib_list==0)) { 1497 /* 1498 * A NULL attrib_list should be treated as though it was an empty 1499 * one (terminated with EGL_NONE) as defined in 1500 * section 3.4.1 "Querying Configurations" in the EGL specification. 1501 */ 1502 static const EGLint dummy = EGL_NONE; 1503 attrib_list = &dummy; 1504 } 1505 1506 int numAttributes = 0; 1507 int numConfigs = NELEM(gConfigs); 1508 uint32_t possibleMatch = (1<<numConfigs)-1; 1509 while(possibleMatch && *attrib_list != EGL_NONE) { 1510 numAttributes++; 1511 EGLint attr = *attrib_list++; 1512 EGLint val = *attrib_list++; 1513 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1514 if (!(possibleMatch & (1<<i))) 1515 continue; 1516 if (isAttributeMatching(i, attr, val) == 0) { 1517 possibleMatch &= ~(1<<i); 1518 } 1519 } 1520 } 1521 1522 // now, handle the attributes which have a useful default value 1523 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) { 1524 // see if this attribute was specified, if not, apply its 1525 // default value 1526 if (binarySearch<config_pair_t>( 1527 (config_pair_t const*)attrib_list, 1528 0, numAttributes-1, 1529 config_defaults[j].key) < 0) 1530 { 1531 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1532 if (!(possibleMatch & (1<<i))) 1533 continue; 1534 if (isAttributeMatching(i, 1535 config_defaults[j].key, 1536 config_defaults[j].value) == 0) 1537 { 1538 possibleMatch &= ~(1<<i); 1539 } 1540 } 1541 } 1542 } 1543 1544 // return the configurations found 1545 int n=0; 1546 if (possibleMatch) { 1547 if (configs) { 1548 for (int i=0 ; config_size && i<numConfigs ; i++) { 1549 if (possibleMatch & (1<<i)) { 1550 *configs++ = (EGLConfig)i; 1551 config_size--; 1552 n++; 1553 } 1554 } 1555 } else { 1556 for (int i=0 ; i<numConfigs ; i++) { 1557 if (possibleMatch & (1<<i)) { 1558 n++; 1559 } 1560 } 1561 } 1562 } 1563 *num_config = n; 1564 return EGL_TRUE; 1565} 1566 1567EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1568 EGLint attribute, EGLint *value) 1569{ 1570 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1571 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1572 1573 return getConfigAttrib(dpy, config, attribute, value); 1574} 1575 1576// ---------------------------------------------------------------------------- 1577// surfaces 1578// ---------------------------------------------------------------------------- 1579 1580EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1581 NativeWindowType window, 1582 const EGLint *attrib_list) 1583{ 1584 return createWindowSurface(dpy, config, window, attrib_list); 1585} 1586 1587EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1588 NativePixmapType pixmap, 1589 const EGLint *attrib_list) 1590{ 1591 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1592} 1593 1594EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1595 const EGLint *attrib_list) 1596{ 1597 return createPbufferSurface(dpy, config, attrib_list); 1598} 1599 1600EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1601{ 1602 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1603 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1604 if (eglSurface != EGL_NO_SURFACE) { 1605 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1606 if (!surface->isValid()) 1607 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1608 if (surface->dpy != dpy) 1609 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1610 if (surface->ctx) { 1611 // FIXME: this surface is current check what the spec says 1612 surface->disconnect(); 1613 surface->ctx = 0; 1614 } 1615 delete surface; 1616 } 1617 return EGL_TRUE; 1618} 1619 1620EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1621 EGLint attribute, EGLint *value) 1622{ 1623 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1624 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1625 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1626 if (!surface->isValid()) 1627 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1628 if (surface->dpy != dpy) 1629 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1630 1631 EGLBoolean ret = EGL_TRUE; 1632 switch (attribute) { 1633 case EGL_CONFIG_ID: 1634 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1635 break; 1636 case EGL_WIDTH: 1637 *value = surface->getWidth(); 1638 break; 1639 case EGL_HEIGHT: 1640 *value = surface->getHeight(); 1641 break; 1642 case EGL_LARGEST_PBUFFER: 1643 // not modified for a window or pixmap surface 1644 break; 1645 case EGL_TEXTURE_FORMAT: 1646 *value = EGL_NO_TEXTURE; 1647 break; 1648 case EGL_TEXTURE_TARGET: 1649 *value = EGL_NO_TEXTURE; 1650 break; 1651 case EGL_MIPMAP_TEXTURE: 1652 *value = EGL_FALSE; 1653 break; 1654 case EGL_MIPMAP_LEVEL: 1655 *value = 0; 1656 break; 1657 case EGL_RENDER_BUFFER: 1658 // TODO: return the real RENDER_BUFFER here 1659 *value = EGL_BACK_BUFFER; 1660 break; 1661 case EGL_HORIZONTAL_RESOLUTION: 1662 // pixel/mm * EGL_DISPLAY_SCALING 1663 *value = surface->getHorizontalResolution(); 1664 break; 1665 case EGL_VERTICAL_RESOLUTION: 1666 // pixel/mm * EGL_DISPLAY_SCALING 1667 *value = surface->getVerticalResolution(); 1668 break; 1669 case EGL_PIXEL_ASPECT_RATIO: { 1670 // w/h * EGL_DISPLAY_SCALING 1671 int wr = surface->getHorizontalResolution(); 1672 int hr = surface->getVerticalResolution(); 1673 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1674 } break; 1675 case EGL_SWAP_BEHAVIOR: 1676 *value = surface->getSwapBehavior(); 1677 break; 1678 default: 1679 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1680 } 1681 return ret; 1682} 1683 1684EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1685 EGLContext share_list, const EGLint *attrib_list) 1686{ 1687 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1688 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1689 1690 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1691 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1692 1693 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1694 c->flags = egl_context_t::NEVER_CURRENT; 1695 c->dpy = dpy; 1696 c->config = config; 1697 c->read = 0; 1698 c->draw = 0; 1699 return (EGLContext)gl; 1700} 1701 1702EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1703{ 1704 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1705 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1706 egl_context_t* c = egl_context_t::context(ctx); 1707 if (c->flags & egl_context_t::IS_CURRENT) 1708 setGlThreadSpecific(0); 1709 ogles_uninit((ogles_context_t*)ctx); 1710 return EGL_TRUE; 1711} 1712 1713EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1714 EGLSurface read, EGLContext ctx) 1715{ 1716 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1717 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1718 if (draw) { 1719 egl_surface_t* s = (egl_surface_t*)draw; 1720 if (!s->isValid()) 1721 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1722 if (s->dpy != dpy) 1723 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1724 // TODO: check that draw is compatible with the context 1725 } 1726 if (read && read!=draw) { 1727 egl_surface_t* s = (egl_surface_t*)read; 1728 if (!s->isValid()) 1729 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1730 if (s->dpy != dpy) 1731 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1732 // TODO: check that read is compatible with the context 1733 } 1734 1735 EGLContext current_ctx = EGL_NO_CONTEXT; 1736 1737 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1738 return setError(EGL_BAD_MATCH, EGL_FALSE); 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 (ctx == EGL_NO_CONTEXT) { 1744 // if we're detaching, we need the current context 1745 current_ctx = (EGLContext)getGlThreadSpecific(); 1746 } else { 1747 egl_context_t* c = egl_context_t::context(ctx); 1748 egl_surface_t* d = (egl_surface_t*)draw; 1749 egl_surface_t* r = (egl_surface_t*)read; 1750 if ((d && d->ctx && d->ctx != ctx) || 1751 (r && r->ctx && r->ctx != ctx)) { 1752 // one of the surface is bound to a context in another thread 1753 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1754 } 1755 } 1756 1757 ogles_context_t* gl = (ogles_context_t*)ctx; 1758 if (makeCurrent(gl) == 0) { 1759 if (ctx) { 1760 egl_context_t* c = egl_context_t::context(ctx); 1761 egl_surface_t* d = (egl_surface_t*)draw; 1762 egl_surface_t* r = (egl_surface_t*)read; 1763 1764 if (c->draw) { 1765 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1766 s->disconnect(); 1767 } 1768 if (c->read) { 1769 // FIXME: unlock/disconnect the read surface too 1770 } 1771 1772 c->draw = draw; 1773 c->read = read; 1774 1775 if (c->flags & egl_context_t::NEVER_CURRENT) { 1776 c->flags &= ~egl_context_t::NEVER_CURRENT; 1777 GLint w = 0; 1778 GLint h = 0; 1779 if (draw) { 1780 w = d->getWidth(); 1781 h = d->getHeight(); 1782 } 1783 ogles_surfaceport(gl, 0, 0); 1784 ogles_viewport(gl, 0, 0, w, h); 1785 ogles_scissor(gl, 0, 0, w, h); 1786 } 1787 if (d) { 1788 if (d->connect() == EGL_FALSE) { 1789 return EGL_FALSE; 1790 } 1791 d->ctx = ctx; 1792 d->bindDrawSurface(gl); 1793 } 1794 if (r) { 1795 // FIXME: lock/connect the read surface too 1796 r->ctx = ctx; 1797 r->bindReadSurface(gl); 1798 } 1799 } else { 1800 // if surfaces were bound to the context bound to this thread 1801 // mark then as unbound. 1802 if (current_ctx) { 1803 egl_context_t* c = egl_context_t::context(current_ctx); 1804 egl_surface_t* d = (egl_surface_t*)c->draw; 1805 egl_surface_t* r = (egl_surface_t*)c->read; 1806 if (d) { 1807 c->draw = 0; 1808 d->ctx = EGL_NO_CONTEXT; 1809 d->disconnect(); 1810 } 1811 if (r) { 1812 c->read = 0; 1813 r->ctx = EGL_NO_CONTEXT; 1814 // FIXME: unlock/disconnect the read surface too 1815 } 1816 } 1817 } 1818 return EGL_TRUE; 1819 } 1820 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1821} 1822 1823EGLContext eglGetCurrentContext(void) 1824{ 1825 // eglGetCurrentContext returns the current EGL rendering context, 1826 // as specified by eglMakeCurrent. If no context is current, 1827 // EGL_NO_CONTEXT is returned. 1828 return (EGLContext)getGlThreadSpecific(); 1829} 1830 1831EGLSurface eglGetCurrentSurface(EGLint readdraw) 1832{ 1833 // eglGetCurrentSurface returns the read or draw surface attached 1834 // to the current EGL rendering context, as specified by eglMakeCurrent. 1835 // If no context is current, EGL_NO_SURFACE is returned. 1836 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1837 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1838 egl_context_t* c = egl_context_t::context(ctx); 1839 if (readdraw == EGL_READ) { 1840 return c->read; 1841 } else if (readdraw == EGL_DRAW) { 1842 return c->draw; 1843 } 1844 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1845} 1846 1847EGLDisplay eglGetCurrentDisplay(void) 1848{ 1849 // eglGetCurrentDisplay returns the current EGL display connection 1850 // for the current EGL rendering context, as specified by eglMakeCurrent. 1851 // If no context is current, EGL_NO_DISPLAY is returned. 1852 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1853 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1854 egl_context_t* c = egl_context_t::context(ctx); 1855 return c->dpy; 1856} 1857 1858EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1859 EGLint attribute, EGLint *value) 1860{ 1861 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1862 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1863 egl_context_t* c = egl_context_t::context(ctx); 1864 switch (attribute) { 1865 case EGL_CONFIG_ID: 1866 // Returns the ID of the EGL frame buffer configuration with 1867 // respect to which the context was created 1868 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1869 } 1870 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1871} 1872 1873EGLBoolean eglWaitGL(void) 1874{ 1875 return EGL_TRUE; 1876} 1877 1878EGLBoolean eglWaitNative(EGLint engine) 1879{ 1880 return EGL_TRUE; 1881} 1882 1883EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1884{ 1885 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1886 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1887 1888 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1889 if (!d->isValid()) 1890 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1891 if (d->dpy != dpy) 1892 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1893 1894 // post the surface 1895 d->swapBuffers(); 1896 1897 // if it's bound to a context, update the buffer 1898 if (d->ctx != EGL_NO_CONTEXT) { 1899 d->bindDrawSurface((ogles_context_t*)d->ctx); 1900 // if this surface is also the read surface of the context 1901 // it is bound to, make sure to update the read buffer as well. 1902 // The EGL spec is a little unclear about this. 1903 egl_context_t* c = egl_context_t::context(d->ctx); 1904 if (c->read == draw) { 1905 d->bindReadSurface((ogles_context_t*)d->ctx); 1906 } 1907 } 1908 1909 return EGL_TRUE; 1910} 1911 1912EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1913 NativePixmapType target) 1914{ 1915 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1916 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1917 // TODO: eglCopyBuffers() 1918 return EGL_FALSE; 1919} 1920 1921EGLint eglGetError(void) 1922{ 1923 return getError(); 1924} 1925 1926const char* eglQueryString(EGLDisplay dpy, EGLint name) 1927{ 1928 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1929 return setError(EGL_BAD_DISPLAY, (const char*)0); 1930 1931 switch (name) { 1932 case EGL_VENDOR: 1933 return gVendorString; 1934 case EGL_VERSION: 1935 return gVersionString; 1936 case EGL_EXTENSIONS: 1937 return gExtensionsString; 1938 case EGL_CLIENT_APIS: 1939 return gClientApiString; 1940 } 1941 return setError(EGL_BAD_PARAMETER, (const char *)0); 1942} 1943 1944// ---------------------------------------------------------------------------- 1945// EGL 1.1 1946// ---------------------------------------------------------------------------- 1947 1948EGLBoolean eglSurfaceAttrib( 1949 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1950{ 1951 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1952 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1953 // TODO: eglSurfaceAttrib() 1954 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1955} 1956 1957EGLBoolean eglBindTexImage( 1958 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1959{ 1960 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1961 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1962 // TODO: eglBindTexImage() 1963 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1964} 1965 1966EGLBoolean eglReleaseTexImage( 1967 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1968{ 1969 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1970 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1971 // TODO: eglReleaseTexImage() 1972 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1973} 1974 1975EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1976{ 1977 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1978 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1979 // TODO: eglSwapInterval() 1980 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1981} 1982 1983// ---------------------------------------------------------------------------- 1984// EGL 1.2 1985// ---------------------------------------------------------------------------- 1986 1987EGLBoolean eglBindAPI(EGLenum api) 1988{ 1989 if (api != EGL_OPENGL_ES_API) 1990 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1991 return EGL_TRUE; 1992} 1993 1994EGLenum eglQueryAPI(void) 1995{ 1996 return EGL_OPENGL_ES_API; 1997} 1998 1999EGLBoolean eglWaitClient(void) 2000{ 2001 glFinish(); 2002 return EGL_TRUE; 2003} 2004 2005EGLBoolean eglReleaseThread(void) 2006{ 2007 // TODO: eglReleaseThread() 2008 return EGL_TRUE; 2009} 2010 2011EGLSurface eglCreatePbufferFromClientBuffer( 2012 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 2013 EGLConfig config, const EGLint *attrib_list) 2014{ 2015 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2016 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 2017 // TODO: eglCreatePbufferFromClientBuffer() 2018 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 2019} 2020 2021// ---------------------------------------------------------------------------- 2022// EGL_EGLEXT_VERSION 3 2023// ---------------------------------------------------------------------------- 2024 2025void (*eglGetProcAddress (const char *procname))() 2026{ 2027 extention_map_t const * const map = gExtentionMap; 2028 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 2029 if (!strcmp(procname, map[i].name)) { 2030 return map[i].address; 2031 } 2032 } 2033 return NULL; 2034} 2035 2036EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 2037 const EGLint *attrib_list) 2038{ 2039 EGLBoolean result = EGL_FALSE; 2040 return result; 2041} 2042 2043EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 2044{ 2045 EGLBoolean result = EGL_FALSE; 2046 return result; 2047} 2048 2049EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 2050 EGLClientBuffer buffer, const EGLint *attrib_list) 2051{ 2052 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2053 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 2054 } 2055 if (ctx != EGL_NO_CONTEXT) { 2056 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2057 } 2058 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2059 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2060 } 2061 2062 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 2063 2064 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2065 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2066 2067 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2068 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2069 2070 switch (native_buffer->format) { 2071 case HAL_PIXEL_FORMAT_RGBA_8888: 2072 case HAL_PIXEL_FORMAT_RGBX_8888: 2073 case HAL_PIXEL_FORMAT_RGB_888: 2074 case HAL_PIXEL_FORMAT_RGB_565: 2075 case HAL_PIXEL_FORMAT_BGRA_8888: 2076 case HAL_PIXEL_FORMAT_RGBA_5551: 2077 case HAL_PIXEL_FORMAT_RGBA_4444: 2078 break; 2079 default: 2080 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2081 } 2082 2083 native_buffer->common.incRef(&native_buffer->common); 2084 return (EGLImageKHR)native_buffer; 2085} 2086 2087EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2088{ 2089 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2090 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2091 } 2092 2093 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 2094 2095 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2096 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2097 2098 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2099 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2100 2101 native_buffer->common.decRef(&native_buffer->common); 2102 2103 return EGL_TRUE; 2104} 2105 2106// ---------------------------------------------------------------------------- 2107// ANDROID extensions 2108// ---------------------------------------------------------------------------- 2109 2110EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2111 EGLint left, EGLint top, EGLint width, EGLint height) 2112{ 2113 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2114 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2115 2116 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2117 if (!d->isValid()) 2118 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2119 if (d->dpy != dpy) 2120 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2121 2122 // post the surface 2123 d->setSwapRectangle(left, top, width, height); 2124 2125 return EGL_TRUE; 2126} 2127