egl.cpp revision df37b62c62f8efd3b5a433f9b4d40d30cec13a31
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 virtual bool isValid() const = 0; 145 146 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 147 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 148 virtual EGLBoolean connect() { return EGL_TRUE; } 149 virtual void disconnect() {} 150 virtual EGLint getWidth() const = 0; 151 virtual EGLint getHeight() const = 0; 152 153 virtual EGLint getHorizontalResolution() const; 154 virtual EGLint getVerticalResolution() const; 155 virtual EGLint getRefreshRate() const; 156 virtual EGLint getSwapBehavior() const; 157 virtual EGLBoolean swapBuffers(); 158 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 159 virtual EGLClientBuffer getRenderBuffer() const; 160protected: 161 GGLSurface depth; 162}; 163 164egl_surface_t::egl_surface_t(EGLDisplay dpy, 165 EGLConfig config, 166 int32_t depthFormat) 167 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 168{ 169 depth.version = sizeof(GGLSurface); 170 depth.data = 0; 171 depth.format = depthFormat; 172} 173egl_surface_t::~egl_surface_t() 174{ 175 magic = 0; 176 free(depth.data); 177} 178EGLBoolean egl_surface_t::swapBuffers() { 179 return EGL_FALSE; 180} 181EGLint egl_surface_t::getHorizontalResolution() const { 182 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 183} 184EGLint egl_surface_t::getVerticalResolution() const { 185 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 186} 187EGLint egl_surface_t::getRefreshRate() const { 188 return (60 * EGL_DISPLAY_SCALING); 189} 190EGLint egl_surface_t::getSwapBehavior() const { 191 return EGL_BUFFER_PRESERVED; 192} 193EGLBoolean egl_surface_t::setSwapRectangle( 194 EGLint l, EGLint t, EGLint w, EGLint h) 195{ 196 return EGL_FALSE; 197} 198EGLClientBuffer egl_surface_t::getRenderBuffer() const { 199 return 0; 200} 201 202// ---------------------------------------------------------------------------- 203 204struct egl_window_surface_v2_t : public egl_surface_t 205{ 206 egl_window_surface_v2_t( 207 EGLDisplay dpy, EGLConfig config, 208 int32_t depthFormat, 209 android_native_window_t* window); 210 211 ~egl_window_surface_v2_t(); 212 213 virtual bool isValid() const { return nativeWindow->common.magic == ANDROID_NATIVE_WINDOW_MAGIC; } 214 virtual EGLBoolean swapBuffers(); 215 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 216 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 217 virtual EGLBoolean connect(); 218 virtual void disconnect(); 219 virtual EGLint getWidth() const { return width; } 220 virtual EGLint getHeight() const { return height; } 221 virtual EGLint getHorizontalResolution() const; 222 virtual EGLint getVerticalResolution() const; 223 virtual EGLint getRefreshRate() const; 224 virtual EGLint getSwapBehavior() const; 225 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 226 virtual EGLClientBuffer getRenderBuffer() const; 227 228private: 229 status_t lock(android_native_buffer_t* buf, int usage, void** vaddr); 230 status_t unlock(android_native_buffer_t* buf); 231 android_native_window_t* nativeWindow; 232 android_native_buffer_t* buffer; 233 android_native_buffer_t* previousBuffer; 234 gralloc_module_t const* module; 235 copybit_device_t* blitengine; 236 int width; 237 int height; 238 void* bits; 239 GGLFormat const* pixelFormatTable; 240 241 struct Rect { 242 inline Rect() { }; 243 inline Rect(int32_t w, int32_t h) 244 : left(0), top(0), right(w), bottom(h) { } 245 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 246 : left(l), top(t), right(r), bottom(b) { } 247 Rect& andSelf(const Rect& r) { 248 left = max(left, r.left); 249 top = max(top, r.top); 250 right = min(right, r.right); 251 bottom = min(bottom, r.bottom); 252 return *this; 253 } 254 bool isEmpty() const { 255 return (left>=right || top>=bottom); 256 } 257 void dump(char const* what) { 258 LOGD("%s { %5d, %5d, w=%5d, h=%5d }", 259 what, left, top, right-left, bottom-top); 260 } 261 262 int32_t left; 263 int32_t top; 264 int32_t right; 265 int32_t bottom; 266 }; 267 268 struct Region { 269 inline Region() : count(0) { } 270 typedef Rect const* const_iterator; 271 const_iterator begin() const { return storage; } 272 const_iterator end() const { return storage+count; } 273 static Region subtract(const Rect& lhs, const Rect& rhs) { 274 Region reg; 275 Rect* storage = reg.storage; 276 if (!lhs.isEmpty()) { 277 if (lhs.top < rhs.top) { // top rect 278 storage->left = lhs.left; 279 storage->top = lhs.top; 280 storage->right = lhs.right; 281 storage->bottom = rhs.top; 282 storage++; 283 } 284 const int32_t top = max(lhs.top, rhs.top); 285 const int32_t bot = min(lhs.bottom, rhs.bottom); 286 if (top < bot) { 287 if (lhs.left < rhs.left) { // left-side rect 288 storage->left = lhs.left; 289 storage->top = top; 290 storage->right = rhs.left; 291 storage->bottom = bot; 292 storage++; 293 } 294 if (lhs.right > rhs.right) { // right-side rect 295 storage->left = rhs.right; 296 storage->top = top; 297 storage->right = lhs.right; 298 storage->bottom = bot; 299 storage++; 300 } 301 } 302 if (lhs.bottom > rhs.bottom) { // bottom rect 303 storage->left = lhs.left; 304 storage->top = rhs.bottom; 305 storage->right = lhs.right; 306 storage->bottom = lhs.bottom; 307 storage++; 308 } 309 reg.count = storage - reg.storage; 310 } 311 return reg; 312 } 313 bool isEmpty() const { 314 return count<=0; 315 } 316 private: 317 Rect storage[4]; 318 ssize_t count; 319 }; 320 321 struct region_iterator : public copybit_region_t { 322 region_iterator(const Region& region) 323 : b(region.begin()), e(region.end()) { 324 this->next = iterate; 325 } 326 private: 327 static int iterate(copybit_region_t const * self, copybit_rect_t* rect) { 328 region_iterator const* me = static_cast<region_iterator const*>(self); 329 if (me->b != me->e) { 330 *reinterpret_cast<Rect*>(rect) = *me->b++; 331 return 1; 332 } 333 return 0; 334 } 335 mutable Region::const_iterator b; 336 Region::const_iterator const e; 337 }; 338 339 void copyBlt( 340 android_native_buffer_t* dst, void* dst_vaddr, 341 android_native_buffer_t* src, void const* src_vaddr, 342 const Region& clip); 343 344 Rect dirtyRegion; 345 Rect oldDirtyRegion; 346}; 347 348egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 349 EGLConfig config, 350 int32_t depthFormat, 351 android_native_window_t* window) 352 : egl_surface_t(dpy, config, depthFormat), 353 nativeWindow(window), buffer(0), previousBuffer(0), module(0), 354 blitengine(0), bits(NULL) 355{ 356 hw_module_t const* pModule; 357 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 358 module = reinterpret_cast<gralloc_module_t const*>(pModule); 359 360 if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &pModule) == 0) { 361 copybit_open(pModule, &blitengine); 362 } 363 364 pixelFormatTable = gglGetPixelFormatTable(); 365 366 // keep a reference on the window 367 nativeWindow->common.incRef(&nativeWindow->common); 368 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width); 369 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height); 370} 371 372egl_window_surface_v2_t::~egl_window_surface_v2_t() { 373 if (buffer) { 374 buffer->common.decRef(&buffer->common); 375 } 376 if (previousBuffer) { 377 previousBuffer->common.decRef(&previousBuffer->common); 378 } 379 nativeWindow->common.decRef(&nativeWindow->common); 380 if (blitengine) { 381 copybit_close(blitengine); 382 } 383} 384 385EGLBoolean egl_window_surface_v2_t::connect() 386{ 387 // we're intending to do software rendering 388 native_window_set_usage(nativeWindow, 389 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); 390 391 // dequeue a buffer 392 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) { 393 return setError(EGL_BAD_ALLOC, EGL_FALSE); 394 } 395 396 // allocate a corresponding depth-buffer 397 width = buffer->width; 398 height = buffer->height; 399 if (depth.format) { 400 depth.width = width; 401 depth.height = height; 402 depth.stride = depth.width; // use the width here 403 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 404 if (depth.data == 0) { 405 return setError(EGL_BAD_ALLOC, EGL_FALSE); 406 } 407 } 408 409 // keep a reference on the buffer 410 buffer->common.incRef(&buffer->common); 411 412 // Lock the buffer 413 nativeWindow->lockBuffer(nativeWindow, buffer); 414 // pin the buffer down 415 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 416 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 417 LOGE("connect() failed to lock buffer %p (%ux%u)", 418 buffer, buffer->width, buffer->height); 419 return setError(EGL_BAD_ACCESS, EGL_FALSE); 420 // FIXME: we should make sure we're not accessing the buffer anymore 421 } 422 return EGL_TRUE; 423} 424 425void egl_window_surface_v2_t::disconnect() 426{ 427 if (buffer && bits) { 428 bits = NULL; 429 unlock(buffer); 430 } 431 // enqueue the last frame 432 nativeWindow->queueBuffer(nativeWindow, buffer); 433 if (buffer) { 434 buffer->common.decRef(&buffer->common); 435 buffer = 0; 436 } 437 if (previousBuffer) { 438 previousBuffer->common.decRef(&previousBuffer->common); 439 previousBuffer = 0; 440 } 441} 442 443status_t egl_window_surface_v2_t::lock( 444 android_native_buffer_t* buf, int usage, void** vaddr) 445{ 446 int err = module->lock(module, buf->handle, 447 usage, 0, 0, buf->width, buf->height, vaddr); 448 return err; 449} 450 451status_t egl_window_surface_v2_t::unlock(android_native_buffer_t* buf) 452{ 453 if (!buf) return BAD_VALUE; 454 int err = module->unlock(module, buf->handle); 455 return err; 456} 457 458void egl_window_surface_v2_t::copyBlt( 459 android_native_buffer_t* dst, void* dst_vaddr, 460 android_native_buffer_t* src, void const* src_vaddr, 461 const Region& clip) 462{ 463 // FIXME: use copybit if possible 464 // NOTE: dst and src must be the same format 465 466 status_t err = NO_ERROR; 467 copybit_device_t* const copybit = blitengine; 468 if (copybit) { 469 copybit_image_t simg; 470 simg.w = src->width; 471 simg.h = src->height; 472 simg.format = src->format; 473 simg.handle = const_cast<native_handle_t*>(src->handle); 474 475 copybit_image_t dimg; 476 dimg.w = dst->width; 477 dimg.h = dst->height; 478 dimg.format = dst->format; 479 dimg.handle = const_cast<native_handle_t*>(dst->handle); 480 481 copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0); 482 copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255); 483 copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_DISABLE); 484 region_iterator it(clip); 485 err = copybit->blit(copybit, &dimg, &simg, &it); 486 if (err != NO_ERROR) { 487 LOGE("copybit failed (%s)", strerror(err)); 488 } 489 } 490 491 if (!copybit || err) { 492 Region::const_iterator cur = clip.begin(); 493 Region::const_iterator end = clip.end(); 494 495 const size_t bpp = pixelFormatTable[src->format].size; 496 const size_t dbpr = dst->stride * bpp; 497 const size_t sbpr = src->stride * bpp; 498 499 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 500 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 501 502 while (cur != end) { 503 const Rect& r(*cur++); 504 ssize_t w = r.right - r.left; 505 ssize_t h = r.bottom - r.top; 506 if (w <= 0 || h<=0) continue; 507 size_t size = w * bpp; 508 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 509 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 510 if (dbpr==sbpr && size==sbpr) { 511 size *= h; 512 h = 1; 513 } 514 do { 515 memcpy(d, s, size); 516 d += dbpr; 517 s += sbpr; 518 } while (--h > 0); 519 } 520 } 521} 522 523EGLBoolean egl_window_surface_v2_t::swapBuffers() 524{ 525 if (!buffer) { 526 return setError(EGL_BAD_ACCESS, EGL_FALSE); 527 } 528 529 /* 530 * Handle eglSetSwapRectangleANDROID() 531 * We copyback from the front buffer 532 */ 533 if (!dirtyRegion.isEmpty()) { 534 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 535 if (previousBuffer) { 536 const Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 537 if (!copyBack.isEmpty()) { 538 void* prevBits; 539 if (lock(previousBuffer, 540 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 541 // copy from previousBuffer to buffer 542 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 543 unlock(previousBuffer); 544 } 545 } 546 } 547 oldDirtyRegion = dirtyRegion; 548 } 549 550 if (previousBuffer) { 551 previousBuffer->common.decRef(&previousBuffer->common); 552 previousBuffer = 0; 553 } 554 555 unlock(buffer); 556 previousBuffer = buffer; 557 nativeWindow->queueBuffer(nativeWindow, buffer); 558 buffer = 0; 559 560 // dequeue a new buffer 561 nativeWindow->dequeueBuffer(nativeWindow, &buffer); 562 563 // TODO: lockBuffer should rather be executed when the very first 564 // direct rendering occurs. 565 nativeWindow->lockBuffer(nativeWindow, buffer); 566 567 // reallocate the depth-buffer if needed 568 if ((width != buffer->width) || (height != buffer->height)) { 569 // TODO: we probably should reset the swap rect here 570 // if the window size has changed 571 width = buffer->width; 572 height = buffer->height; 573 if (depth.data) { 574 free(depth.data); 575 depth.width = width; 576 depth.height = height; 577 depth.stride = buffer->stride; 578 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 579 if (depth.data == 0) { 580 setError(EGL_BAD_ALLOC, EGL_FALSE); 581 return EGL_FALSE; 582 } 583 } 584 } 585 586 // keep a reference on the buffer 587 buffer->common.incRef(&buffer->common); 588 589 // finally pin the buffer down 590 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 591 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 592 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 593 buffer, buffer->width, buffer->height); 594 return setError(EGL_BAD_ACCESS, EGL_FALSE); 595 // FIXME: we should make sure we're not accessing the buffer anymore 596 } 597 598 return EGL_TRUE; 599} 600 601EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 602 EGLint l, EGLint t, EGLint w, EGLint h) 603{ 604 dirtyRegion = Rect(l, t, l+w, t+h); 605 return EGL_TRUE; 606} 607 608EGLClientBuffer egl_window_surface_v2_t::getRenderBuffer() const 609{ 610 return buffer; 611} 612 613#ifdef LIBAGL_USE_GRALLOC_COPYBITS 614 615static bool supportedCopybitsDestinationFormat(int format) { 616 // Hardware supported 617 switch (format) { 618 case HAL_PIXEL_FORMAT_RGB_565: 619 case HAL_PIXEL_FORMAT_RGBA_8888: 620 case HAL_PIXEL_FORMAT_RGBA_4444: 621 case HAL_PIXEL_FORMAT_RGBA_5551: 622 case HAL_PIXEL_FORMAT_BGRA_8888: 623 return true; 624 } 625 return false; 626} 627#endif 628 629EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 630{ 631 GGLSurface buffer; 632 buffer.version = sizeof(GGLSurface); 633 buffer.width = this->buffer->width; 634 buffer.height = this->buffer->height; 635 buffer.stride = this->buffer->stride; 636 buffer.data = (GGLubyte*)bits; 637 buffer.format = this->buffer->format; 638 gl->rasterizer.procs.colorBuffer(gl, &buffer); 639 if (depth.data != gl->rasterizer.state.buffers.depth.data) 640 gl->rasterizer.procs.depthBuffer(gl, &depth); 641 642#ifdef LIBAGL_USE_GRALLOC_COPYBITS 643 gl->copybits.drawSurfaceBuffer = 0; 644 if (gl->copybits.blitEngine != NULL) { 645 if (supportedCopybitsDestinationFormat(buffer.format)) { 646 buffer_handle_t handle = this->buffer->handle; 647 if (handle != NULL) { 648 gl->copybits.drawSurfaceBuffer = handle; 649 } 650 } 651 } 652#endif // LIBAGL_USE_GRALLOC_COPYBITS 653 654 return EGL_TRUE; 655} 656EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 657{ 658 GGLSurface buffer; 659 buffer.version = sizeof(GGLSurface); 660 buffer.width = this->buffer->width; 661 buffer.height = this->buffer->height; 662 buffer.stride = this->buffer->stride; 663 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 664 buffer.format = this->buffer->format; 665 gl->rasterizer.procs.readBuffer(gl, &buffer); 666 return EGL_TRUE; 667} 668EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 669 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 670} 671EGLint egl_window_surface_v2_t::getVerticalResolution() const { 672 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 673} 674EGLint egl_window_surface_v2_t::getRefreshRate() const { 675 return (60 * EGL_DISPLAY_SCALING); // FIXME 676} 677EGLint egl_window_surface_v2_t::getSwapBehavior() const 678{ 679 /* 680 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 681 * the content of the swapped buffer. 682 * 683 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 684 * 685 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 686 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 687 * is, everything outside of this area is preserved. 688 * 689 * This implementation of EGL assumes the later case. 690 * 691 */ 692 693 return EGL_BUFFER_DESTROYED; 694} 695 696// ---------------------------------------------------------------------------- 697 698struct egl_pixmap_surface_t : public egl_surface_t 699{ 700 egl_pixmap_surface_t( 701 EGLDisplay dpy, EGLConfig config, 702 int32_t depthFormat, 703 egl_native_pixmap_t const * pixmap); 704 705 virtual ~egl_pixmap_surface_t() { } 706 707 virtual bool isValid() const { return nativePixmap.version == sizeof(egl_native_pixmap_t); } 708 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 709 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 710 virtual EGLint getWidth() const { return nativePixmap.width; } 711 virtual EGLint getHeight() const { return nativePixmap.height; } 712private: 713 egl_native_pixmap_t nativePixmap; 714}; 715 716egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 717 EGLConfig config, 718 int32_t depthFormat, 719 egl_native_pixmap_t const * pixmap) 720 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 721{ 722 if (depthFormat) { 723 depth.width = pixmap->width; 724 depth.height = pixmap->height; 725 depth.stride = depth.width; // use the width here 726 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 727 if (depth.data == 0) { 728 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 729 return; 730 } 731 } 732} 733EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 734{ 735 GGLSurface buffer; 736 buffer.version = sizeof(GGLSurface); 737 buffer.width = nativePixmap.width; 738 buffer.height = nativePixmap.height; 739 buffer.stride = nativePixmap.stride; 740 buffer.data = nativePixmap.data; 741 buffer.format = nativePixmap.format; 742 743 gl->rasterizer.procs.colorBuffer(gl, &buffer); 744 if (depth.data != gl->rasterizer.state.buffers.depth.data) 745 gl->rasterizer.procs.depthBuffer(gl, &depth); 746 return EGL_TRUE; 747} 748EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 749{ 750 GGLSurface buffer; 751 buffer.version = sizeof(GGLSurface); 752 buffer.width = nativePixmap.width; 753 buffer.height = nativePixmap.height; 754 buffer.stride = nativePixmap.stride; 755 buffer.data = nativePixmap.data; 756 buffer.format = nativePixmap.format; 757 gl->rasterizer.procs.readBuffer(gl, &buffer); 758 return EGL_TRUE; 759} 760 761// ---------------------------------------------------------------------------- 762 763struct egl_pbuffer_surface_t : public egl_surface_t 764{ 765 egl_pbuffer_surface_t( 766 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 767 int32_t w, int32_t h, int32_t f); 768 769 virtual ~egl_pbuffer_surface_t(); 770 771 virtual bool isValid() const { return pbuffer.data != 0; } 772 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 773 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 774 virtual EGLint getWidth() const { return pbuffer.width; } 775 virtual EGLint getHeight() const { return pbuffer.height; } 776private: 777 GGLSurface pbuffer; 778}; 779 780egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 781 EGLConfig config, int32_t depthFormat, 782 int32_t w, int32_t h, int32_t f) 783 : egl_surface_t(dpy, config, depthFormat) 784{ 785 size_t size = w*h; 786 switch (f) { 787 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 788 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 789 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 790 default: 791 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 792 pbuffer.data = 0; 793 break; 794 } 795 pbuffer.version = sizeof(GGLSurface); 796 pbuffer.width = w; 797 pbuffer.height = h; 798 pbuffer.stride = w; 799 pbuffer.data = (GGLubyte*)malloc(size); 800 pbuffer.format = f; 801 802 if (depthFormat) { 803 depth.width = pbuffer.width; 804 depth.height = pbuffer.height; 805 depth.stride = depth.width; // use the width here 806 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 807 if (depth.data == 0) { 808 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 809 return; 810 } 811 } 812} 813egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 814 free(pbuffer.data); 815} 816EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 817{ 818 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 819 if (depth.data != gl->rasterizer.state.buffers.depth.data) 820 gl->rasterizer.procs.depthBuffer(gl, &depth); 821 return EGL_TRUE; 822} 823EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 824{ 825 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 826 return EGL_TRUE; 827} 828 829// ---------------------------------------------------------------------------- 830 831struct config_pair_t { 832 GLint key; 833 GLint value; 834}; 835 836struct configs_t { 837 const config_pair_t* array; 838 int size; 839}; 840 841struct config_management_t { 842 GLint key; 843 bool (*match)(GLint reqValue, GLint confValue); 844 static bool atLeast(GLint reqValue, GLint confValue) { 845 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 846 } 847 static bool exact(GLint reqValue, GLint confValue) { 848 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 849 } 850 static bool mask(GLint reqValue, GLint confValue) { 851 return (confValue & reqValue) == reqValue; 852 } 853}; 854 855// ---------------------------------------------------------------------------- 856 857#define VERSION_MAJOR 1 858#define VERSION_MINOR 2 859static char const * const gVendorString = "Google Inc."; 860static char const * const gVersionString = "1.2 Android Driver"; 861static char const * const gClientApiString = "OpenGL ES"; 862static char const * const gExtensionsString = 863 "EGL_KHR_image_base " 864 // "KHR_image_pixmap " 865 "EGL_ANDROID_image_native_buffer " 866 "EGL_ANDROID_swap_rectangle " 867 "EGL_ANDROID_get_render_buffer " 868 ; 869 870// ---------------------------------------------------------------------------- 871 872struct extention_map_t { 873 const char * const name; 874 __eglMustCastToProperFunctionPointerType address; 875}; 876 877static const extention_map_t gExtentionMap[] = { 878 { "glDrawTexsOES", 879 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 880 { "glDrawTexiOES", 881 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 882 { "glDrawTexfOES", 883 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 884 { "glDrawTexxOES", 885 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 886 { "glDrawTexsvOES", 887 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 888 { "glDrawTexivOES", 889 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 890 { "glDrawTexfvOES", 891 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 892 { "glDrawTexxvOES", 893 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 894 { "glQueryMatrixxOES", 895 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 896 { "glEGLImageTargetTexture2DOES", 897 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 898 { "glEGLImageTargetRenderbufferStorageOES", 899 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 900 { "glClipPlanef", 901 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 902 { "glClipPlanex", 903 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 904 { "glBindBuffer", 905 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 906 { "glBufferData", 907 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 908 { "glBufferSubData", 909 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 910 { "glDeleteBuffers", 911 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 912 { "glGenBuffers", 913 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 914 { "eglCreateImageKHR", 915 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 916 { "eglDestroyImageKHR", 917 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 918 { "eglSetSwapRectangleANDROID", 919 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 920 { "eglGetRenderBufferANDROID", 921 (__eglMustCastToProperFunctionPointerType)&eglGetRenderBufferANDROID }, 922}; 923 924/* 925 * In the lists below, attributes names MUST be sorted. 926 * Additionally, all configs must be sorted according to 927 * the EGL specification. 928 */ 929 930static config_pair_t const config_base_attribute_list[] = { 931 { EGL_STENCIL_SIZE, 0 }, 932 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 933 { EGL_LEVEL, 0 }, 934 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 935 { EGL_MAX_PBUFFER_PIXELS, 936 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 937 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 938 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 939 { EGL_NATIVE_VISUAL_ID, 0 }, 940 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 941 { EGL_SAMPLES, 0 }, 942 { EGL_SAMPLE_BUFFERS, 0 }, 943 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 944 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 945 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 946 { EGL_TRANSPARENT_RED_VALUE, 0 }, 947 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 948 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 949 { EGL_MIN_SWAP_INTERVAL, 1 }, 950 { EGL_MAX_SWAP_INTERVAL, 4 }, 951}; 952 953// These configs can override the base attribute list 954// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 955 956static config_pair_t const config_0_attribute_list[] = { 957 { EGL_BUFFER_SIZE, 16 }, 958 { EGL_ALPHA_SIZE, 0 }, 959 { EGL_BLUE_SIZE, 5 }, 960 { EGL_GREEN_SIZE, 6 }, 961 { EGL_RED_SIZE, 5 }, 962 { EGL_DEPTH_SIZE, 0 }, 963 { EGL_CONFIG_ID, 0 }, 964 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 965}; 966 967static config_pair_t const config_1_attribute_list[] = { 968 { EGL_BUFFER_SIZE, 16 }, 969 { EGL_ALPHA_SIZE, 0 }, 970 { EGL_BLUE_SIZE, 5 }, 971 { EGL_GREEN_SIZE, 6 }, 972 { EGL_RED_SIZE, 5 }, 973 { EGL_DEPTH_SIZE, 16 }, 974 { EGL_CONFIG_ID, 1 }, 975 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 976}; 977 978static config_pair_t const config_2_attribute_list[] = { 979 { EGL_BUFFER_SIZE, 32 }, 980 { EGL_ALPHA_SIZE, 8 }, 981 { EGL_BLUE_SIZE, 8 }, 982 { EGL_GREEN_SIZE, 8 }, 983 { EGL_RED_SIZE, 8 }, 984 { EGL_DEPTH_SIZE, 0 }, 985 { EGL_CONFIG_ID, 2 }, 986 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 987}; 988 989static config_pair_t const config_3_attribute_list[] = { 990 { EGL_BUFFER_SIZE, 32 }, 991 { EGL_ALPHA_SIZE, 8 }, 992 { EGL_BLUE_SIZE, 8 }, 993 { EGL_GREEN_SIZE, 8 }, 994 { EGL_RED_SIZE, 8 }, 995 { EGL_DEPTH_SIZE, 16 }, 996 { EGL_CONFIG_ID, 3 }, 997 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 998}; 999 1000static config_pair_t const config_4_attribute_list[] = { 1001 { EGL_BUFFER_SIZE, 8 }, 1002 { EGL_ALPHA_SIZE, 8 }, 1003 { EGL_BLUE_SIZE, 0 }, 1004 { EGL_GREEN_SIZE, 0 }, 1005 { EGL_RED_SIZE, 0 }, 1006 { EGL_DEPTH_SIZE, 0 }, 1007 { EGL_CONFIG_ID, 4 }, 1008 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1009}; 1010 1011static config_pair_t const config_5_attribute_list[] = { 1012 { EGL_BUFFER_SIZE, 8 }, 1013 { EGL_ALPHA_SIZE, 8 }, 1014 { EGL_BLUE_SIZE, 0 }, 1015 { EGL_GREEN_SIZE, 0 }, 1016 { EGL_RED_SIZE, 0 }, 1017 { EGL_DEPTH_SIZE, 16 }, 1018 { EGL_CONFIG_ID, 5 }, 1019 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 1020}; 1021 1022static configs_t const gConfigs[] = { 1023 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 1024 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 1025 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 1026 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 1027 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 1028 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 1029}; 1030 1031static config_management_t const gConfigManagement[] = { 1032 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 1033 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1034 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1035 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1036 { EGL_RED_SIZE, config_management_t::atLeast }, 1037 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1038 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1039 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1040 { EGL_CONFIG_ID, config_management_t::exact }, 1041 { EGL_LEVEL, config_management_t::exact }, 1042 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::exact }, 1043 { EGL_MAX_PBUFFER_PIXELS, config_management_t::exact }, 1044 { EGL_MAX_PBUFFER_WIDTH, config_management_t::exact }, 1045 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1046 { EGL_NATIVE_VISUAL_ID, config_management_t::exact }, 1047 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1048 { EGL_SAMPLES, config_management_t::exact }, 1049 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1050 { EGL_SURFACE_TYPE, config_management_t::mask }, 1051 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1052 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1053 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1054 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1055 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1056 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1057 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1058 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1059}; 1060 1061static config_pair_t const config_defaults[] = { 1062 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1063}; 1064 1065// ---------------------------------------------------------------------------- 1066 1067template<typename T> 1068static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1069{ 1070 while (first <= last) { 1071 int mid = (first + last) / 2; 1072 if (key > sortedArray[mid].key) { 1073 first = mid + 1; 1074 } else if (key < sortedArray[mid].key) { 1075 last = mid - 1; 1076 } else { 1077 return mid; 1078 } 1079 } 1080 return -1; 1081} 1082 1083static int isAttributeMatching(int i, EGLint attr, EGLint val) 1084{ 1085 // look for the attribute in all of our configs 1086 config_pair_t const* configFound = gConfigs[i].array; 1087 int index = binarySearch<config_pair_t>( 1088 gConfigs[i].array, 1089 0, gConfigs[i].size-1, 1090 attr); 1091 if (index < 0) { 1092 configFound = config_base_attribute_list; 1093 index = binarySearch<config_pair_t>( 1094 config_base_attribute_list, 1095 0, NELEM(config_base_attribute_list)-1, 1096 attr); 1097 } 1098 if (index >= 0) { 1099 // attribute found, check if this config could match 1100 int cfgMgtIndex = binarySearch<config_management_t>( 1101 gConfigManagement, 1102 0, NELEM(gConfigManagement)-1, 1103 attr); 1104 if (index >= 0) { 1105 bool match = gConfigManagement[cfgMgtIndex].match( 1106 val, configFound[index].value); 1107 if (match) { 1108 // this config matches 1109 return 1; 1110 } 1111 } else { 1112 // attribute not found. this should NEVER happen. 1113 } 1114 } else { 1115 // error, this attribute doesn't exist 1116 } 1117 return 0; 1118} 1119 1120static int makeCurrent(ogles_context_t* gl) 1121{ 1122 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1123 if (gl) { 1124 egl_context_t* c = egl_context_t::context(gl); 1125 if (c->flags & egl_context_t::IS_CURRENT) { 1126 if (current != gl) { 1127 // it is an error to set a context current, if it's already 1128 // current to another thread 1129 return -1; 1130 } 1131 } else { 1132 if (current) { 1133 // mark the current context as not current, and flush 1134 glFlush(); 1135 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1136 } 1137 } 1138 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1139 // The context is not current, make it current! 1140 setGlThreadSpecific(gl); 1141 c->flags |= egl_context_t::IS_CURRENT; 1142 } 1143 } else { 1144 if (current) { 1145 // mark the current context as not current, and flush 1146 glFlush(); 1147 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1148 } 1149 // this thread has no context attached to it 1150 setGlThreadSpecific(0); 1151 } 1152 return 0; 1153} 1154 1155static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1156 EGLint attribute, EGLint *value) 1157{ 1158 size_t numConfigs = NELEM(gConfigs); 1159 int index = (int)config; 1160 if (uint32_t(index) >= numConfigs) 1161 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1162 1163 int attrIndex; 1164 attrIndex = binarySearch<config_pair_t>( 1165 gConfigs[index].array, 1166 0, gConfigs[index].size-1, 1167 attribute); 1168 if (attrIndex>=0) { 1169 *value = gConfigs[index].array[attrIndex].value; 1170 return EGL_TRUE; 1171 } 1172 1173 attrIndex = binarySearch<config_pair_t>( 1174 config_base_attribute_list, 1175 0, NELEM(config_base_attribute_list)-1, 1176 attribute); 1177 if (attrIndex>=0) { 1178 *value = config_base_attribute_list[attrIndex].value; 1179 return EGL_TRUE; 1180 } 1181 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1182} 1183 1184static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1185 NativeWindowType window, const EGLint *attrib_list) 1186{ 1187 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1188 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1189 if (window == 0) 1190 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1191 1192 EGLint surfaceType; 1193 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1194 return EGL_FALSE; 1195 1196 if (!(surfaceType & EGL_WINDOW_BIT)) 1197 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1198 1199 EGLint configID; 1200 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1201 return EGL_FALSE; 1202 1203 int32_t depthFormat; 1204 int32_t pixelFormat; 1205 switch(configID) { 1206 case 0: 1207 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1208 depthFormat = 0; 1209 break; 1210 case 1: 1211 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1212 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1213 break; 1214 case 2: 1215 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1216 depthFormat = 0; 1217 break; 1218 case 3: 1219 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1220 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1221 break; 1222 case 4: 1223 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1224 depthFormat = 0; 1225 break; 1226 case 5: 1227 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1228 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1229 break; 1230 default: 1231 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1232 } 1233 1234 // FIXME: we don't have access to the pixelFormat here just yet. 1235 // (it's possible that the surface is not fully initialized) 1236 // maybe this should be done after the page-flip 1237 //if (EGLint(info.format) != pixelFormat) 1238 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1239 1240 egl_surface_t* surface; 1241 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1242 static_cast<android_native_window_t*>(window)); 1243 1244 if (!surface->isValid()) { 1245 // there was a problem in the ctor, the error 1246 // flag has been set. 1247 delete surface; 1248 surface = 0; 1249 } 1250 return surface; 1251} 1252 1253static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1254 NativePixmapType pixmap, const EGLint *attrib_list) 1255{ 1256 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1257 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1258 if (pixmap == 0) 1259 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1260 1261 EGLint surfaceType; 1262 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1263 return EGL_FALSE; 1264 1265 if (!(surfaceType & EGL_PIXMAP_BIT)) 1266 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1267 1268 EGLint configID; 1269 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1270 return EGL_FALSE; 1271 1272 int32_t depthFormat; 1273 int32_t pixelFormat; 1274 switch(configID) { 1275 case 0: 1276 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1277 depthFormat = 0; 1278 break; 1279 case 1: 1280 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1281 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1282 break; 1283 case 2: 1284 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1285 depthFormat = 0; 1286 break; 1287 case 3: 1288 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1289 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1290 break; 1291 case 4: 1292 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1293 depthFormat = 0; 1294 break; 1295 case 5: 1296 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1297 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1298 break; 1299 default: 1300 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1301 } 1302 1303 if (pixmap->format != pixelFormat) 1304 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1305 1306 egl_surface_t* surface = 1307 new egl_pixmap_surface_t(dpy, config, depthFormat, 1308 static_cast<egl_native_pixmap_t*>(pixmap)); 1309 1310 if (!surface->isValid()) { 1311 // there was a problem in the ctor, the error 1312 // flag has been set. 1313 delete surface; 1314 surface = 0; 1315 } 1316 return surface; 1317} 1318 1319static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1320 const EGLint *attrib_list) 1321{ 1322 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1323 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1324 1325 EGLint surfaceType; 1326 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1327 return EGL_FALSE; 1328 1329 if (!(surfaceType & EGL_PBUFFER_BIT)) 1330 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1331 1332 EGLint configID; 1333 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1334 return EGL_FALSE; 1335 1336 int32_t depthFormat; 1337 int32_t pixelFormat; 1338 switch(configID) { 1339 case 0: 1340 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1341 depthFormat = 0; 1342 break; 1343 case 1: 1344 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1345 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1346 break; 1347 case 2: 1348 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1349 depthFormat = 0; 1350 break; 1351 case 3: 1352 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1353 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1354 break; 1355 case 4: 1356 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1357 depthFormat = 0; 1358 break; 1359 case 5: 1360 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1361 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1362 break; 1363 default: 1364 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1365 } 1366 1367 int32_t w = 0; 1368 int32_t h = 0; 1369 while (attrib_list[0]) { 1370 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1371 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1372 attrib_list+=2; 1373 } 1374 1375 egl_surface_t* surface = 1376 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1377 1378 if (!surface->isValid()) { 1379 // there was a problem in the ctor, the error 1380 // flag has been set. 1381 delete surface; 1382 surface = 0; 1383 } 1384 return surface; 1385} 1386 1387// ---------------------------------------------------------------------------- 1388}; // namespace android 1389// ---------------------------------------------------------------------------- 1390 1391using namespace android; 1392 1393// ---------------------------------------------------------------------------- 1394// Initialization 1395// ---------------------------------------------------------------------------- 1396 1397EGLDisplay eglGetDisplay(NativeDisplayType display) 1398{ 1399#ifndef HAVE_ANDROID_OS 1400 // this just needs to be done once 1401 if (gGLKey == -1) { 1402 pthread_mutex_lock(&gInitMutex); 1403 if (gGLKey == -1) 1404 pthread_key_create(&gGLKey, NULL); 1405 pthread_mutex_unlock(&gInitMutex); 1406 } 1407#endif 1408 if (display == EGL_DEFAULT_DISPLAY) { 1409 EGLDisplay dpy = (EGLDisplay)1; 1410 egl_display_t& d = egl_display_t::get_display(dpy); 1411 d.type = display; 1412 return dpy; 1413 } 1414 return EGL_NO_DISPLAY; 1415} 1416 1417EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1418{ 1419 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1420 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1421 1422 EGLBoolean res = EGL_TRUE; 1423 egl_display_t& d = egl_display_t::get_display(dpy); 1424 1425 if (android_atomic_inc(&d.initialized) == 0) { 1426 // initialize stuff here if needed 1427 //pthread_mutex_lock(&gInitMutex); 1428 //pthread_mutex_unlock(&gInitMutex); 1429 } 1430 1431 if (res == EGL_TRUE) { 1432 if (major != NULL) *major = VERSION_MAJOR; 1433 if (minor != NULL) *minor = VERSION_MINOR; 1434 } 1435 return res; 1436} 1437 1438EGLBoolean eglTerminate(EGLDisplay dpy) 1439{ 1440 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1441 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1442 1443 EGLBoolean res = EGL_TRUE; 1444 egl_display_t& d = egl_display_t::get_display(dpy); 1445 if (android_atomic_dec(&d.initialized) == 1) { 1446 // TODO: destroy all resources (surfaces, contexts, etc...) 1447 //pthread_mutex_lock(&gInitMutex); 1448 //pthread_mutex_unlock(&gInitMutex); 1449 } 1450 return res; 1451} 1452 1453// ---------------------------------------------------------------------------- 1454// configuration 1455// ---------------------------------------------------------------------------- 1456 1457EGLBoolean eglGetConfigs( EGLDisplay dpy, 1458 EGLConfig *configs, 1459 EGLint config_size, EGLint *num_config) 1460{ 1461 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1462 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1463 1464 GLint numConfigs = NELEM(gConfigs); 1465 if (!configs) { 1466 *num_config = numConfigs; 1467 return EGL_TRUE; 1468 } 1469 GLint i; 1470 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1471 *configs++ = (EGLConfig)i; 1472 } 1473 *num_config = i; 1474 return EGL_TRUE; 1475} 1476 1477EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1478 EGLConfig *configs, EGLint config_size, 1479 EGLint *num_config) 1480{ 1481 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1482 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1483 1484 if (ggl_unlikely(num_config==0)) { 1485 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1486 } 1487 1488 if (ggl_unlikely(attrib_list==0)) { 1489 *num_config = 0; 1490 return EGL_TRUE; 1491 } 1492 1493 int numAttributes = 0; 1494 int numConfigs = NELEM(gConfigs); 1495 uint32_t possibleMatch = (1<<numConfigs)-1; 1496 while(possibleMatch && *attrib_list != EGL_NONE) { 1497 numAttributes++; 1498 EGLint attr = *attrib_list++; 1499 EGLint val = *attrib_list++; 1500 for (int i=0 ; i<numConfigs ; i++) { 1501 if (!(possibleMatch & (1<<i))) 1502 continue; 1503 if (isAttributeMatching(i, attr, val) == 0) { 1504 possibleMatch &= ~(1<<i); 1505 } 1506 } 1507 } 1508 1509 // now, handle the attributes which have a useful default value 1510 for (size_t j=0 ; j<NELEM(config_defaults) ; j++) { 1511 // see if this attribute was specified, if not apply its 1512 // default value 1513 if (binarySearch<config_pair_t>( 1514 (config_pair_t const*)attrib_list, 1515 0, numAttributes-1, 1516 config_defaults[j].key) < 0) 1517 { 1518 for (int i=0 ; i<numConfigs ; i++) { 1519 if (!(possibleMatch & (1<<i))) 1520 continue; 1521 if (isAttributeMatching(i, 1522 config_defaults[j].key, 1523 config_defaults[j].value) == 0) 1524 { 1525 possibleMatch &= ~(1<<i); 1526 } 1527 } 1528 } 1529 } 1530 1531 // return the configurations found 1532 int n=0; 1533 if (possibleMatch) { 1534 if (configs) { 1535 for (int i=0 ; config_size && i<numConfigs ; i++) { 1536 if (possibleMatch & (1<<i)) { 1537 *configs++ = (EGLConfig)i; 1538 config_size--; 1539 n++; 1540 } 1541 } 1542 } else { 1543 for (int i=0 ; i<numConfigs ; i++) { 1544 if (possibleMatch & (1<<i)) { 1545 n++; 1546 } 1547 } 1548 } 1549 } 1550 *num_config = n; 1551 return EGL_TRUE; 1552} 1553 1554EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1555 EGLint attribute, EGLint *value) 1556{ 1557 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1558 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1559 1560 return getConfigAttrib(dpy, config, attribute, value); 1561} 1562 1563// ---------------------------------------------------------------------------- 1564// surfaces 1565// ---------------------------------------------------------------------------- 1566 1567EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1568 NativeWindowType window, 1569 const EGLint *attrib_list) 1570{ 1571 return createWindowSurface(dpy, config, window, attrib_list); 1572} 1573 1574EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1575 NativePixmapType pixmap, 1576 const EGLint *attrib_list) 1577{ 1578 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1579} 1580 1581EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1582 const EGLint *attrib_list) 1583{ 1584 return createPbufferSurface(dpy, config, attrib_list); 1585} 1586 1587EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1588{ 1589 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1590 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1591 if (eglSurface != EGL_NO_SURFACE) { 1592 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1593 if (surface->magic != egl_surface_t::MAGIC) 1594 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1595 if (surface->dpy != dpy) 1596 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1597 if (surface->ctx) { 1598 // FIXME: this surface is current check what the spec says 1599 surface->disconnect(); 1600 surface->ctx = 0; 1601 } 1602 delete surface; 1603 } 1604 return EGL_TRUE; 1605} 1606 1607EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1608 EGLint attribute, EGLint *value) 1609{ 1610 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1611 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1612 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1613 if (surface->dpy != dpy) 1614 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1615 1616 EGLBoolean ret = EGL_TRUE; 1617 switch (attribute) { 1618 case EGL_CONFIG_ID: 1619 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1620 break; 1621 case EGL_WIDTH: 1622 *value = surface->getWidth(); 1623 break; 1624 case EGL_HEIGHT: 1625 *value = surface->getHeight(); 1626 break; 1627 case EGL_LARGEST_PBUFFER: 1628 // not modified for a window or pixmap surface 1629 break; 1630 case EGL_TEXTURE_FORMAT: 1631 *value = EGL_NO_TEXTURE; 1632 break; 1633 case EGL_TEXTURE_TARGET: 1634 *value = EGL_NO_TEXTURE; 1635 break; 1636 case EGL_MIPMAP_TEXTURE: 1637 *value = EGL_FALSE; 1638 break; 1639 case EGL_MIPMAP_LEVEL: 1640 *value = 0; 1641 break; 1642 case EGL_RENDER_BUFFER: 1643 // TODO: return the real RENDER_BUFFER here 1644 *value = EGL_BACK_BUFFER; 1645 break; 1646 case EGL_HORIZONTAL_RESOLUTION: 1647 // pixel/mm * EGL_DISPLAY_SCALING 1648 *value = surface->getHorizontalResolution(); 1649 break; 1650 case EGL_VERTICAL_RESOLUTION: 1651 // pixel/mm * EGL_DISPLAY_SCALING 1652 *value = surface->getVerticalResolution(); 1653 break; 1654 case EGL_PIXEL_ASPECT_RATIO: { 1655 // w/h * EGL_DISPLAY_SCALING 1656 int wr = surface->getHorizontalResolution(); 1657 int hr = surface->getVerticalResolution(); 1658 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1659 } break; 1660 case EGL_SWAP_BEHAVIOR: 1661 *value = surface->getSwapBehavior(); 1662 break; 1663 default: 1664 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1665 } 1666 return ret; 1667} 1668 1669EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1670 EGLContext share_list, const EGLint *attrib_list) 1671{ 1672 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1673 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1674 1675 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1676 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1677 1678 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1679 c->flags = egl_context_t::NEVER_CURRENT; 1680 c->dpy = dpy; 1681 c->config = config; 1682 c->read = 0; 1683 c->draw = 0; 1684 return (EGLContext)gl; 1685} 1686 1687EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1688{ 1689 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1690 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1691 egl_context_t* c = egl_context_t::context(ctx); 1692 if (c->flags & egl_context_t::IS_CURRENT) 1693 setGlThreadSpecific(0); 1694 ogles_uninit((ogles_context_t*)ctx); 1695 return EGL_TRUE; 1696} 1697 1698EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1699 EGLSurface read, EGLContext ctx) 1700{ 1701 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1702 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1703 if (draw) { 1704 egl_surface_t* s = (egl_surface_t*)draw; 1705 if (s->dpy != dpy) 1706 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1707 // TODO: check that draw and read are compatible with the context 1708 } 1709 1710 EGLContext current_ctx = EGL_NO_CONTEXT; 1711 1712 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1713 return setError(EGL_BAD_MATCH, EGL_FALSE); 1714 1715 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1716 return setError(EGL_BAD_MATCH, EGL_FALSE); 1717 1718 if (ctx == EGL_NO_CONTEXT) { 1719 // if we're detaching, we need the current context 1720 current_ctx = (EGLContext)getGlThreadSpecific(); 1721 } else { 1722 egl_context_t* c = egl_context_t::context(ctx); 1723 egl_surface_t* d = (egl_surface_t*)draw; 1724 egl_surface_t* r = (egl_surface_t*)read; 1725 if ((d && d->ctx && d->ctx != ctx) || 1726 (r && r->ctx && r->ctx != ctx)) { 1727 // one of the surface is bound to a context in another thread 1728 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1729 } 1730 } 1731 1732 ogles_context_t* gl = (ogles_context_t*)ctx; 1733 if (makeCurrent(gl) == 0) { 1734 if (ctx) { 1735 egl_context_t* c = egl_context_t::context(ctx); 1736 egl_surface_t* d = (egl_surface_t*)draw; 1737 egl_surface_t* r = (egl_surface_t*)read; 1738 1739 if (c->draw) { 1740 reinterpret_cast<egl_surface_t*>(c->draw)->disconnect(); 1741 } 1742 if (c->read) { 1743 // FIXME: unlock/disconnect the read surface too 1744 } 1745 1746 c->draw = draw; 1747 c->read = read; 1748 1749 if (c->flags & egl_context_t::NEVER_CURRENT) { 1750 c->flags &= ~egl_context_t::NEVER_CURRENT; 1751 GLint w = 0; 1752 GLint h = 0; 1753 if (draw) { 1754 w = d->getWidth(); 1755 h = d->getHeight(); 1756 } 1757 ogles_surfaceport(gl, 0, 0); 1758 ogles_viewport(gl, 0, 0, w, h); 1759 ogles_scissor(gl, 0, 0, w, h); 1760 } 1761 if (d) { 1762 if (d->connect() == EGL_FALSE) { 1763 return EGL_FALSE; 1764 } 1765 d->ctx = ctx; 1766 d->bindDrawSurface(gl); 1767 } 1768 if (r) { 1769 // FIXME: lock/connect the read surface too 1770 r->ctx = ctx; 1771 r->bindReadSurface(gl); 1772 } 1773 } else { 1774 // if surfaces were bound to the context bound to this thread 1775 // mark then as unbound. 1776 if (current_ctx) { 1777 egl_context_t* c = egl_context_t::context(current_ctx); 1778 egl_surface_t* d = (egl_surface_t*)c->draw; 1779 egl_surface_t* r = (egl_surface_t*)c->read; 1780 if (d) { 1781 c->draw = 0; 1782 d->ctx = EGL_NO_CONTEXT; 1783 d->disconnect(); 1784 } 1785 if (r) { 1786 c->read = 0; 1787 r->ctx = EGL_NO_CONTEXT; 1788 // FIXME: unlock/disconnect the read surface too 1789 } 1790 } 1791 } 1792 return EGL_TRUE; 1793 } 1794 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1795} 1796 1797EGLContext eglGetCurrentContext(void) 1798{ 1799 // eglGetCurrentContext returns the current EGL rendering context, 1800 // as specified by eglMakeCurrent. If no context is current, 1801 // EGL_NO_CONTEXT is returned. 1802 return (EGLContext)getGlThreadSpecific(); 1803} 1804 1805EGLSurface eglGetCurrentSurface(EGLint readdraw) 1806{ 1807 // eglGetCurrentSurface returns the read or draw surface attached 1808 // to the current EGL rendering context, as specified by eglMakeCurrent. 1809 // If no context is current, EGL_NO_SURFACE is returned. 1810 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1811 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1812 egl_context_t* c = egl_context_t::context(ctx); 1813 if (readdraw == EGL_READ) { 1814 return c->read; 1815 } else if (readdraw == EGL_DRAW) { 1816 return c->draw; 1817 } 1818 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1819} 1820 1821EGLDisplay eglGetCurrentDisplay(void) 1822{ 1823 // eglGetCurrentDisplay returns the current EGL display connection 1824 // for the current EGL rendering context, as specified by eglMakeCurrent. 1825 // If no context is current, EGL_NO_DISPLAY is returned. 1826 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1827 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1828 egl_context_t* c = egl_context_t::context(ctx); 1829 return c->dpy; 1830} 1831 1832EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1833 EGLint attribute, EGLint *value) 1834{ 1835 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1836 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1837 egl_context_t* c = egl_context_t::context(ctx); 1838 switch (attribute) { 1839 case EGL_CONFIG_ID: 1840 // Returns the ID of the EGL frame buffer configuration with 1841 // respect to which the context was created 1842 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1843 } 1844 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1845} 1846 1847EGLBoolean eglWaitGL(void) 1848{ 1849 return EGL_TRUE; 1850} 1851 1852EGLBoolean eglWaitNative(EGLint engine) 1853{ 1854 return EGL_TRUE; 1855} 1856 1857EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1858{ 1859 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1860 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1861 1862 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1863 if (d->dpy != dpy) 1864 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1865 1866 // post the surface 1867 d->swapBuffers(); 1868 1869 // if it's bound to a context, update the buffer 1870 if (d->ctx != EGL_NO_CONTEXT) { 1871 d->bindDrawSurface((ogles_context_t*)d->ctx); 1872 // if this surface is also the read surface of the context 1873 // it is bound to, make sure to update the read buffer as well. 1874 // The EGL spec is a little unclear about this. 1875 egl_context_t* c = egl_context_t::context(d->ctx); 1876 if (c->read == draw) { 1877 d->bindReadSurface((ogles_context_t*)d->ctx); 1878 } 1879 } 1880 1881 return EGL_TRUE; 1882} 1883 1884EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1885 NativePixmapType target) 1886{ 1887 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1888 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1889 // TODO: eglCopyBuffers() 1890 return EGL_FALSE; 1891} 1892 1893EGLint eglGetError(void) 1894{ 1895 return getError(); 1896} 1897 1898const char* eglQueryString(EGLDisplay dpy, EGLint name) 1899{ 1900 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1901 return setError(EGL_BAD_DISPLAY, (const char*)0); 1902 1903 switch (name) { 1904 case EGL_VENDOR: 1905 return gVendorString; 1906 case EGL_VERSION: 1907 return gVersionString; 1908 case EGL_EXTENSIONS: 1909 return gExtensionsString; 1910 case EGL_CLIENT_APIS: 1911 return gClientApiString; 1912 } 1913 return setError(EGL_BAD_PARAMETER, (const char *)0); 1914} 1915 1916// ---------------------------------------------------------------------------- 1917// EGL 1.1 1918// ---------------------------------------------------------------------------- 1919 1920EGLBoolean eglSurfaceAttrib( 1921 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1922{ 1923 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1924 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1925 // TODO: eglSurfaceAttrib() 1926 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1927} 1928 1929EGLBoolean eglBindTexImage( 1930 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1931{ 1932 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1933 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1934 // TODO: eglBindTexImage() 1935 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1936} 1937 1938EGLBoolean eglReleaseTexImage( 1939 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1940{ 1941 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1942 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1943 // TODO: eglReleaseTexImage() 1944 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1945} 1946 1947EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1948{ 1949 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1950 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1951 // TODO: eglSwapInterval() 1952 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1953} 1954 1955// ---------------------------------------------------------------------------- 1956// EGL 1.2 1957// ---------------------------------------------------------------------------- 1958 1959EGLBoolean eglBindAPI(EGLenum api) 1960{ 1961 if (api != EGL_OPENGL_ES_API) 1962 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1963 return EGL_TRUE; 1964} 1965 1966EGLenum eglQueryAPI(void) 1967{ 1968 return EGL_OPENGL_ES_API; 1969} 1970 1971EGLBoolean eglWaitClient(void) 1972{ 1973 glFinish(); 1974 return EGL_TRUE; 1975} 1976 1977EGLBoolean eglReleaseThread(void) 1978{ 1979 // TODO: eglReleaseThread() 1980 return EGL_TRUE; 1981} 1982 1983EGLSurface eglCreatePbufferFromClientBuffer( 1984 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 1985 EGLConfig config, const EGLint *attrib_list) 1986{ 1987 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1988 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1989 // TODO: eglCreatePbufferFromClientBuffer() 1990 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 1991} 1992 1993// ---------------------------------------------------------------------------- 1994// EGL_EGLEXT_VERSION 3 1995// ---------------------------------------------------------------------------- 1996 1997void (*eglGetProcAddress (const char *procname))() 1998{ 1999 extention_map_t const * const map = gExtentionMap; 2000 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 2001 if (!strcmp(procname, map[i].name)) { 2002 return map[i].address; 2003 } 2004 } 2005 return NULL; 2006} 2007 2008EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 2009 const EGLint *attrib_list) 2010{ 2011 EGLBoolean result = EGL_FALSE; 2012 return result; 2013} 2014 2015EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 2016{ 2017 EGLBoolean result = EGL_FALSE; 2018 return result; 2019} 2020 2021EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 2022 EGLClientBuffer buffer, const EGLint *attrib_list) 2023{ 2024 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2025 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 2026 } 2027 if (ctx != EGL_NO_CONTEXT) { 2028 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2029 } 2030 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2031 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2032 } 2033 2034 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 2035 2036 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2037 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2038 2039 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2040 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2041 2042 native_buffer->common.incRef(&native_buffer->common); 2043 return (EGLImageKHR)native_buffer; 2044} 2045 2046EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2047{ 2048 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2049 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2050 } 2051 2052 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 2053 2054 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2055 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2056 2057 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 2058 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2059 2060 native_buffer->common.decRef(&native_buffer->common); 2061 2062 return EGL_TRUE; 2063} 2064 2065// ---------------------------------------------------------------------------- 2066// ANDROID extensions 2067// ---------------------------------------------------------------------------- 2068 2069EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2070 EGLint left, EGLint top, EGLint width, EGLint height) 2071{ 2072 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2073 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2074 2075 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2076 if (d->dpy != dpy) 2077 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2078 2079 // post the surface 2080 d->setSwapRectangle(left, top, width, height); 2081 2082 return EGL_TRUE; 2083} 2084 2085EGLClientBuffer eglGetRenderBufferANDROID(EGLDisplay dpy, EGLSurface draw) 2086{ 2087 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2088 return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0); 2089 2090 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2091 if (d->dpy != dpy) 2092 return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0); 2093 2094 // post the surface 2095 return d->getRenderBuffer(); 2096} 2097