egl.cpp revision 8d2e83b9f44c7f2207a312fcfda8eb3a4c26745f
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 "context.h" 45#include "state.h" 46#include "texture.h" 47#include "matrix.h" 48 49#ifdef LIBAGL_USE_GRALLOC_COPYBITS 50#include "gralloc_priv.h" 51#endif // LIBAGL_USE_GRALLOC_COPYBITS 52 53#undef NELEM 54#define NELEM(x) (sizeof(x)/sizeof(*(x))) 55 56// ---------------------------------------------------------------------------- 57namespace android { 58// ---------------------------------------------------------------------------- 59 60const unsigned int NUM_DISPLAYS = 1; 61 62static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER; 63static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER; 64static pthread_key_t gEGLErrorKey = -1; 65#ifndef HAVE_ANDROID_OS 66namespace gl { 67pthread_key_t gGLKey = -1; 68}; // namespace gl 69#endif 70 71template<typename T> 72static T setError(GLint error, T returnValue) { 73 if (ggl_unlikely(gEGLErrorKey == -1)) { 74 pthread_mutex_lock(&gErrorKeyMutex); 75 if (gEGLErrorKey == -1) 76 pthread_key_create(&gEGLErrorKey, NULL); 77 pthread_mutex_unlock(&gErrorKeyMutex); 78 } 79 pthread_setspecific(gEGLErrorKey, (void*)error); 80 return returnValue; 81} 82 83static GLint getError() { 84 if (ggl_unlikely(gEGLErrorKey == -1)) 85 return EGL_SUCCESS; 86 GLint error = (GLint)pthread_getspecific(gEGLErrorKey); 87 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS); 88 return error; 89} 90 91// ---------------------------------------------------------------------------- 92 93struct egl_display_t 94{ 95 egl_display_t() : type(0), initialized(0) { } 96 97 static egl_display_t& get_display(EGLDisplay dpy); 98 99 static EGLBoolean is_valid(EGLDisplay dpy) { 100 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE; 101 } 102 103 NativeDisplayType type; 104 volatile int32_t initialized; 105}; 106 107static egl_display_t gDisplays[NUM_DISPLAYS]; 108 109egl_display_t& egl_display_t::get_display(EGLDisplay dpy) { 110 return gDisplays[uintptr_t(dpy)-1U]; 111} 112 113struct egl_context_t { 114 enum { 115 IS_CURRENT = 0x00010000, 116 NEVER_CURRENT = 0x00020000 117 }; 118 uint32_t flags; 119 EGLDisplay dpy; 120 EGLConfig config; 121 EGLSurface read; 122 EGLSurface draw; 123 124 static inline egl_context_t* context(EGLContext ctx) { 125 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx); 126 return static_cast<egl_context_t*>(gl->rasterizer.base); 127 } 128}; 129 130// ---------------------------------------------------------------------------- 131 132struct egl_surface_t 133{ 134 enum { 135 PAGE_FLIP = 0x00000001, 136 MAGIC = 0x31415265 137 }; 138 139 uint32_t magic; 140 EGLDisplay dpy; 141 EGLConfig config; 142 EGLContext ctx; 143 144 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat); 145 virtual ~egl_surface_t(); 146 virtual bool isValid() const = 0; 147 148 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 149 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 150 virtual void connect() {} 151 virtual void disconnect() {} 152 virtual EGLint getWidth() const = 0; 153 virtual EGLint getHeight() const = 0; 154 155 virtual EGLint getHorizontalResolution() const; 156 virtual EGLint getVerticalResolution() const; 157 virtual EGLint getRefreshRate() const; 158 virtual EGLint getSwapBehavior() const; 159 virtual EGLBoolean swapBuffers(); 160 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 161 virtual EGLClientBuffer getRenderBuffer() const; 162protected: 163 GGLSurface depth; 164}; 165 166egl_surface_t::egl_surface_t(EGLDisplay dpy, 167 EGLConfig config, 168 int32_t depthFormat) 169 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 170{ 171 depth.version = sizeof(GGLSurface); 172 depth.data = 0; 173 depth.format = depthFormat; 174} 175egl_surface_t::~egl_surface_t() 176{ 177 magic = 0; 178 free(depth.data); 179} 180EGLBoolean egl_surface_t::swapBuffers() { 181 return EGL_FALSE; 182} 183EGLint egl_surface_t::getHorizontalResolution() const { 184 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 185} 186EGLint egl_surface_t::getVerticalResolution() const { 187 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 188} 189EGLint egl_surface_t::getRefreshRate() const { 190 return (60 * EGL_DISPLAY_SCALING); 191} 192EGLint egl_surface_t::getSwapBehavior() const { 193 return EGL_BUFFER_PRESERVED; 194} 195EGLBoolean egl_surface_t::setSwapRectangle( 196 EGLint l, EGLint t, EGLint w, EGLint h) 197{ 198 return EGL_FALSE; 199} 200EGLClientBuffer egl_surface_t::getRenderBuffer() const { 201 return 0; 202} 203 204// ---------------------------------------------------------------------------- 205 206struct egl_window_surface_v2_t : public egl_surface_t 207{ 208 egl_window_surface_v2_t( 209 EGLDisplay dpy, EGLConfig config, 210 int32_t depthFormat, 211 android_native_window_t* window); 212 213 ~egl_window_surface_v2_t(); 214 215 virtual bool isValid() const { return nativeWindow->common.magic == ANDROID_NATIVE_WINDOW_MAGIC; } 216 virtual EGLBoolean swapBuffers(); 217 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 218 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 219 virtual void connect(); 220 virtual void disconnect(); 221 virtual EGLint getWidth() const { return buffer->width; } 222 virtual EGLint getHeight() const { return buffer->height; } 223 virtual EGLint getHorizontalResolution() const; 224 virtual EGLint getVerticalResolution() const; 225 virtual EGLint getRefreshRate() const; 226 virtual EGLint getSwapBehavior() const; 227 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 228 virtual EGLClientBuffer getRenderBuffer() const; 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 android_native_window_t* nativeWindow; 234 android_native_buffer_t* buffer; 235 android_native_buffer_t* previousBuffer; 236 gralloc_module_t const* module; 237 int width; 238 int height; 239 void* bits; 240 GGLFormat const* pixelFormatTable; 241 242 struct Rect { 243 inline Rect() { }; 244 inline Rect(int32_t w, int32_t h) 245 : left(0), top(0), right(w), bottom(h) { } 246 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 247 : left(l), top(t), right(r), bottom(b) { } 248 Rect& andSelf(const Rect& r) { 249 left = max(left, r.left); 250 top = max(top, r.top); 251 right = min(right, r.right); 252 bottom = min(bottom, r.bottom); 253 return *this; 254 } 255 bool isEmpty() const { 256 return (left>=right || top>=bottom); 257 } 258 void dump(char const* what) { 259 LOGD("%s { %5d, %5d, w=%5d, h=%5d }", 260 what, left, top, right-left, bottom-top); 261 } 262 263 int32_t left; 264 int32_t top; 265 int32_t right; 266 int32_t bottom; 267 }; 268 269 struct Region { 270 inline Region() : count(0) { } 271 static Region subtract(const Rect& lhs, const Rect& rhs) { 272 Region reg; 273 Rect* storage = reg.storage; 274 if (!lhs.isEmpty()) { 275 if (lhs.top < rhs.top) { // top rect 276 storage->left = lhs.left; 277 storage->top = lhs.top; 278 storage->right = lhs.right; 279 storage->bottom = max(lhs.top, rhs.top); 280 storage++; 281 } 282 if (lhs.left < rhs.left) { // left-side rect 283 storage->left = lhs.left; 284 storage->top = max(lhs.top, rhs.top); 285 storage->right = max(lhs.left, rhs.left); 286 storage->bottom = min(lhs.bottom, rhs.bottom); 287 storage++; 288 } 289 if (lhs.right > rhs.right) { // right-side rect 290 storage->left = min(lhs.right, rhs.right); 291 storage->top = max(lhs.top, rhs.top); 292 storage->right = lhs.right; 293 storage->bottom = min(lhs.bottom, rhs.bottom); 294 storage++; 295 } 296 if (lhs.bottom > rhs.bottom) { // bottom rect 297 storage->left = lhs.left; 298 storage->top = min(lhs.bottom, rhs.bottom); 299 storage->right = lhs.right; 300 storage->bottom = lhs.bottom; 301 storage++; 302 } 303 reg.count = storage - reg.storage; 304 } 305 return reg; 306 } 307 bool isEmpty() const { 308 return count<=0; 309 } 310 ssize_t getRects(Rect const* * rects) const { 311 *rects = storage; 312 return count; 313 } 314 private: 315 Rect storage[4]; 316 ssize_t count; 317 }; 318 319 void copyBlt( 320 android_native_buffer_t* dst, void* dst_vaddr, 321 android_native_buffer_t* src, void const* src_vaddr, 322 const Rect* reg, ssize_t count); 323 324 Rect dirtyRegion; 325 Rect oldDirtyRegion; 326}; 327 328egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 329 EGLConfig config, 330 int32_t depthFormat, 331 android_native_window_t* window) 332 : egl_surface_t(dpy, config, depthFormat), 333 nativeWindow(window), buffer(0), previousBuffer(0), module(0), 334 bits(NULL) 335{ 336 hw_module_t const* pModule; 337 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 338 module = reinterpret_cast<gralloc_module_t const*>(pModule); 339 340 pixelFormatTable = gglGetPixelFormatTable(); 341 342 // keep a reference on the window 343 nativeWindow->common.incRef(&nativeWindow->common); 344 345 // dequeue a buffer 346 nativeWindow->dequeueBuffer(nativeWindow, &buffer); 347 348 // allocate a corresponding depth-buffer 349 width = buffer->width; 350 height = buffer->height; 351 if (depthFormat) { 352 depth.width = width; 353 depth.height = height; 354 depth.stride = depth.width; // use the width here 355 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 356 if (depth.data == 0) { 357 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 358 return; 359 } 360 } 361 362 // keep a reference on the buffer 363 buffer->common.incRef(&buffer->common); 364} 365 366egl_window_surface_v2_t::~egl_window_surface_v2_t() { 367 if (buffer) { 368 buffer->common.decRef(&buffer->common); 369 } 370 if (previousBuffer) { 371 previousBuffer->common.decRef(&previousBuffer->common); 372 } 373 nativeWindow->common.decRef(&nativeWindow->common); 374} 375 376void egl_window_surface_v2_t::connect() 377{ 378 // Lock the buffer 379 nativeWindow->lockBuffer(nativeWindow, buffer); 380 // pin the buffer down 381 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 382 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 383 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 384 buffer, buffer->width, buffer->height); 385 setError(EGL_BAD_ACCESS, EGL_NO_SURFACE); 386 // FIXME: we should make sure we're not accessing the buffer anymore 387 } 388} 389 390void egl_window_surface_v2_t::disconnect() 391{ 392 if (buffer && bits) { 393 bits = NULL; 394 unlock(buffer); 395 } 396} 397 398status_t egl_window_surface_v2_t::lock( 399 android_native_buffer_t* buf, int usage, void** vaddr) 400{ 401 int err = module->lock(module, buf->handle, 402 usage, 0, 0, buf->width, buf->height, vaddr); 403 return err; 404} 405 406status_t egl_window_surface_v2_t::unlock(android_native_buffer_t* buf) 407{ 408 int err = module->unlock(module, buf->handle); 409 return err; 410} 411 412void egl_window_surface_v2_t::copyBlt( 413 android_native_buffer_t* dst, void* dst_vaddr, 414 android_native_buffer_t* src, void const* src_vaddr, 415 const Rect* reg, ssize_t count) 416{ 417 // FIXME: use copybit if possible 418 // NOTE: dst and src must be the same format 419 420 Rect r; 421 const size_t bpp = pixelFormatTable[src->format].size; 422 const size_t dbpr = dst->stride * bpp; 423 const size_t sbpr = src->stride * bpp; 424 425 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 426 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 427 428 for (int i= 0 ; i<count ; i++) { 429 const Rect& r(reg[i]); 430 ssize_t w = r.right - r.left; 431 ssize_t h = r.bottom - r.top; 432 if (w <= 0 || h<=0) continue; 433 size_t size = w * bpp; 434 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 435 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 436 if (dbpr==sbpr && size==sbpr) { 437 size *= h; 438 h = 1; 439 } 440 do { 441 memcpy(d, s, size); 442 d += dbpr; 443 s += sbpr; 444 } while (--h > 0); 445 } 446} 447 448EGLBoolean egl_window_surface_v2_t::swapBuffers() 449{ 450 /* 451 * Handle eglSetSwapRectangleANDROID() 452 * We copyback from the front buffer 453 */ 454 if (!dirtyRegion.isEmpty()) { 455 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 456 if (previousBuffer) { 457 const Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 458 if (!copyBack.isEmpty()) { 459 Rect const* list; 460 ssize_t count = copyBack.getRects(&list); 461 // copy from previousBuffer to buffer 462 void* prevBits; 463 if (lock(previousBuffer, 464 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) 465 { 466 copyBlt(buffer, bits, previousBuffer, prevBits, list, count); 467 unlock(previousBuffer); 468 } 469 } 470 } 471 oldDirtyRegion = dirtyRegion; 472 } 473 474 if (previousBuffer) { 475 previousBuffer->common.decRef(&previousBuffer->common); 476 previousBuffer = 0; 477 } 478 479 unlock(buffer); 480 previousBuffer = buffer; 481 nativeWindow->queueBuffer(nativeWindow, buffer); 482 buffer = 0; 483 484 // dequeue a new buffer 485 nativeWindow->dequeueBuffer(nativeWindow, &buffer); 486 487 // TODO: lockBuffer should rather be executed when the very first 488 // direct rendering occurs. 489 nativeWindow->lockBuffer(nativeWindow, buffer); 490 491 // reallocate the depth-buffer if needed 492 if ((width != buffer->width) || (height != buffer->height)) { 493 // TODO: we probably should reset the swap rect here 494 // if the window size has changed 495 width = buffer->width; 496 height = buffer->height; 497 if (depth.data) { 498 free(depth.data); 499 depth.width = width; 500 depth.height = height; 501 depth.stride = buffer->stride; 502 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 503 if (depth.data == 0) { 504 setError(EGL_BAD_ALLOC, EGL_FALSE); 505 return EGL_FALSE; 506 } 507 } 508 } 509 510 // keep a reference on the buffer 511 buffer->common.incRef(&buffer->common); 512 513 // finally pin the buffer down 514 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 515 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 516 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 517 buffer, buffer->width, buffer->height); 518 setError(EGL_BAD_ACCESS, EGL_NO_SURFACE); 519 // FIXME: we should make sure we're not accessing the buffer anymore 520 } 521 522 return EGL_TRUE; 523} 524 525EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 526 EGLint l, EGLint t, EGLint w, EGLint h) 527{ 528 dirtyRegion = Rect(l, t, l+w, t+h); 529 return EGL_TRUE; 530} 531 532EGLClientBuffer egl_window_surface_v2_t::getRenderBuffer() const 533{ 534 return buffer; 535} 536 537#ifdef LIBAGL_USE_GRALLOC_COPYBITS 538 539static bool supportedCopybitsDestinationFormat(int format) { 540 // Hardware supported 541 switch (format) { 542 case HAL_PIXEL_FORMAT_RGB_565: 543 case HAL_PIXEL_FORMAT_RGBA_8888: 544 case HAL_PIXEL_FORMAT_RGBA_4444: 545 case HAL_PIXEL_FORMAT_RGBA_5551: 546 case HAL_PIXEL_FORMAT_BGRA_8888: 547 return true; 548 } 549 return false; 550} 551#endif 552 553EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 554{ 555 GGLSurface buffer; 556 buffer.version = sizeof(GGLSurface); 557 buffer.width = this->buffer->width; 558 buffer.height = this->buffer->height; 559 buffer.stride = this->buffer->stride; 560 buffer.data = (GGLubyte*)bits; 561 buffer.format = this->buffer->format; 562 gl->rasterizer.procs.colorBuffer(gl, &buffer); 563 if (depth.data != gl->rasterizer.state.buffers.depth.data) 564 gl->rasterizer.procs.depthBuffer(gl, &depth); 565 566#ifdef LIBAGL_USE_GRALLOC_COPYBITS 567 gl->copybits.drawSurfaceBuffer = 0; 568 if (supportedCopybitsDestinationFormat(buffer.format)) { 569 buffer_handle_t handle = this->buffer->handle; 570 if (handle != NULL) { 571 private_handle_t* hand = private_handle_t::dynamicCast(handle); 572 if (hand != NULL && hand->usesPhysicallyContiguousMemory()) { 573 gl->copybits.drawSurfaceBuffer = handle; 574 } 575 } 576 } 577#endif // LIBAGL_USE_GRALLOC_COPYBITS 578 579 return EGL_TRUE; 580} 581EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 582{ 583 GGLSurface buffer; 584 buffer.version = sizeof(GGLSurface); 585 buffer.width = this->buffer->width; 586 buffer.height = this->buffer->height; 587 buffer.stride = this->buffer->stride; 588 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 589 buffer.format = this->buffer->format; 590 gl->rasterizer.procs.readBuffer(gl, &buffer); 591 return EGL_TRUE; 592} 593EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 594 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 595} 596EGLint egl_window_surface_v2_t::getVerticalResolution() const { 597 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 598} 599EGLint egl_window_surface_v2_t::getRefreshRate() const { 600 return (60 * EGL_DISPLAY_SCALING); // FIXME 601} 602EGLint egl_window_surface_v2_t::getSwapBehavior() const 603{ 604 /* 605 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 606 * the content of the swapped buffer. 607 * 608 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 609 * 610 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 611 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 612 * is, everything outside of this area is preserved. 613 * 614 * This implementation of EGL assumes the later case. 615 * 616 */ 617 618 return EGL_BUFFER_DESTROYED; 619} 620 621// ---------------------------------------------------------------------------- 622 623struct egl_pixmap_surface_t : public egl_surface_t 624{ 625 egl_pixmap_surface_t( 626 EGLDisplay dpy, EGLConfig config, 627 int32_t depthFormat, 628 egl_native_pixmap_t const * pixmap); 629 630 virtual ~egl_pixmap_surface_t() { } 631 632 virtual bool isValid() const { return nativePixmap.version == sizeof(egl_native_pixmap_t); } 633 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 634 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 635 virtual EGLint getWidth() const { return nativePixmap.width; } 636 virtual EGLint getHeight() const { return nativePixmap.height; } 637private: 638 egl_native_pixmap_t nativePixmap; 639}; 640 641egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 642 EGLConfig config, 643 int32_t depthFormat, 644 egl_native_pixmap_t const * pixmap) 645 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 646{ 647 if (depthFormat) { 648 depth.width = pixmap->width; 649 depth.height = pixmap->height; 650 depth.stride = depth.width; // use the width here 651 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 652 if (depth.data == 0) { 653 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 654 return; 655 } 656 } 657} 658EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 659{ 660 GGLSurface buffer; 661 buffer.version = sizeof(GGLSurface); 662 buffer.width = nativePixmap.width; 663 buffer.height = nativePixmap.height; 664 buffer.stride = nativePixmap.stride; 665 buffer.data = nativePixmap.data; 666 buffer.format = nativePixmap.format; 667 668 gl->rasterizer.procs.colorBuffer(gl, &buffer); 669 if (depth.data != gl->rasterizer.state.buffers.depth.data) 670 gl->rasterizer.procs.depthBuffer(gl, &depth); 671 return EGL_TRUE; 672} 673EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 674{ 675 GGLSurface buffer; 676 buffer.version = sizeof(GGLSurface); 677 buffer.width = nativePixmap.width; 678 buffer.height = nativePixmap.height; 679 buffer.stride = nativePixmap.stride; 680 buffer.data = nativePixmap.data; 681 buffer.format = nativePixmap.format; 682 gl->rasterizer.procs.readBuffer(gl, &buffer); 683 return EGL_TRUE; 684} 685 686// ---------------------------------------------------------------------------- 687 688struct egl_pbuffer_surface_t : public egl_surface_t 689{ 690 egl_pbuffer_surface_t( 691 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 692 int32_t w, int32_t h, int32_t f); 693 694 virtual ~egl_pbuffer_surface_t(); 695 696 virtual bool isValid() const { return pbuffer.data != 0; } 697 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 698 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 699 virtual EGLint getWidth() const { return pbuffer.width; } 700 virtual EGLint getHeight() const { return pbuffer.height; } 701private: 702 GGLSurface pbuffer; 703}; 704 705egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 706 EGLConfig config, int32_t depthFormat, 707 int32_t w, int32_t h, int32_t f) 708 : egl_surface_t(dpy, config, depthFormat) 709{ 710 size_t size = w*h; 711 switch (f) { 712 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 713 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 714 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 715 default: 716 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 717 pbuffer.data = 0; 718 break; 719 } 720 pbuffer.version = sizeof(GGLSurface); 721 pbuffer.width = w; 722 pbuffer.height = h; 723 pbuffer.stride = w; 724 pbuffer.data = (GGLubyte*)malloc(size); 725 pbuffer.format = f; 726 727 if (depthFormat) { 728 depth.width = pbuffer.width; 729 depth.height = pbuffer.height; 730 depth.stride = depth.width; // use the width here 731 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 732 if (depth.data == 0) { 733 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 734 return; 735 } 736 } 737} 738egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 739 free(pbuffer.data); 740} 741EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 742{ 743 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 744 if (depth.data != gl->rasterizer.state.buffers.depth.data) 745 gl->rasterizer.procs.depthBuffer(gl, &depth); 746 return EGL_TRUE; 747} 748EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 749{ 750 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 751 return EGL_TRUE; 752} 753 754// ---------------------------------------------------------------------------- 755 756struct config_pair_t { 757 GLint key; 758 GLint value; 759}; 760 761struct configs_t { 762 const config_pair_t* array; 763 int size; 764}; 765 766struct config_management_t { 767 GLint key; 768 bool (*match)(GLint reqValue, GLint confValue); 769 static bool atLeast(GLint reqValue, GLint confValue) { 770 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 771 } 772 static bool exact(GLint reqValue, GLint confValue) { 773 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 774 } 775 static bool mask(GLint reqValue, GLint confValue) { 776 return (confValue & reqValue) == reqValue; 777 } 778}; 779 780// ---------------------------------------------------------------------------- 781 782#define VERSION_MAJOR 1 783#define VERSION_MINOR 2 784static char const * const gVendorString = "Google Inc."; 785static char const * const gVersionString = "1.2 Android Driver"; 786static char const * const gClientApiString = "OpenGL ES"; 787static char const * const gExtensionsString = 788 "EGL_KHR_image_base " 789 // "KHR_image_pixmap " 790 "EGL_ANDROID_image_native_buffer " 791 "EGL_ANDROID_swap_rectangle " 792 "EGL_ANDROID_get_render_buffer " 793 ; 794 795// ---------------------------------------------------------------------------- 796 797struct extention_map_t { 798 const char * const name; 799 __eglMustCastToProperFunctionPointerType address; 800}; 801 802static const extention_map_t gExtentionMap[] = { 803 { "glDrawTexsOES", 804 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 805 { "glDrawTexiOES", 806 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 807 { "glDrawTexfOES", 808 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 809 { "glDrawTexxOES", 810 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 811 { "glDrawTexsvOES", 812 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 813 { "glDrawTexivOES", 814 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 815 { "glDrawTexfvOES", 816 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 817 { "glDrawTexxvOES", 818 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 819 { "glQueryMatrixxOES", 820 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 821 { "glEGLImageTargetTexture2DOES", 822 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 823 { "glEGLImageTargetRenderbufferStorageOES", 824 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 825 { "glClipPlanef", 826 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 827 { "glClipPlanex", 828 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 829 { "glBindBuffer", 830 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 831 { "glBufferData", 832 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 833 { "glBufferSubData", 834 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 835 { "glDeleteBuffers", 836 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 837 { "glGenBuffers", 838 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 839 { "eglCreateImageKHR", 840 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 841 { "eglDestroyImageKHR", 842 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 843 { "eglSetSwapRectangleANDROID", 844 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 845 { "eglGetRenderBufferANDROID", 846 (__eglMustCastToProperFunctionPointerType)&eglGetRenderBufferANDROID }, 847}; 848 849/* 850 * In the lists below, attributes names MUST be sorted. 851 * Additionally, all configs must be sorted according to 852 * the EGL specification. 853 */ 854 855static config_pair_t const config_base_attribute_list[] = { 856 { EGL_STENCIL_SIZE, 0 }, 857 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 858 { EGL_LEVEL, 0 }, 859 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 860 { EGL_MAX_PBUFFER_PIXELS, 861 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 862 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 863 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 864 { EGL_NATIVE_VISUAL_ID, 0 }, 865 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 866 { EGL_SAMPLES, 0 }, 867 { EGL_SAMPLE_BUFFERS, 0 }, 868 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 869 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 870 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 871 { EGL_TRANSPARENT_RED_VALUE, 0 }, 872 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 873 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 874 { EGL_MIN_SWAP_INTERVAL, 1 }, 875 { EGL_MAX_SWAP_INTERVAL, 4 }, 876}; 877 878// These configs can override the base attribute list 879// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 880 881static config_pair_t const config_0_attribute_list[] = { 882 { EGL_BUFFER_SIZE, 16 }, 883 { EGL_ALPHA_SIZE, 0 }, 884 { EGL_BLUE_SIZE, 5 }, 885 { EGL_GREEN_SIZE, 6 }, 886 { EGL_RED_SIZE, 5 }, 887 { EGL_DEPTH_SIZE, 0 }, 888 { EGL_CONFIG_ID, 0 }, 889 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 890}; 891 892static config_pair_t const config_1_attribute_list[] = { 893 { EGL_BUFFER_SIZE, 16 }, 894 { EGL_ALPHA_SIZE, 0 }, 895 { EGL_BLUE_SIZE, 5 }, 896 { EGL_GREEN_SIZE, 6 }, 897 { EGL_RED_SIZE, 5 }, 898 { EGL_DEPTH_SIZE, 16 }, 899 { EGL_CONFIG_ID, 1 }, 900 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 901}; 902 903static config_pair_t const config_2_attribute_list[] = { 904 { EGL_BUFFER_SIZE, 32 }, 905 { EGL_ALPHA_SIZE, 8 }, 906 { EGL_BLUE_SIZE, 8 }, 907 { EGL_GREEN_SIZE, 8 }, 908 { EGL_RED_SIZE, 8 }, 909 { EGL_DEPTH_SIZE, 0 }, 910 { EGL_CONFIG_ID, 2 }, 911 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 912}; 913 914static config_pair_t const config_3_attribute_list[] = { 915 { EGL_BUFFER_SIZE, 32 }, 916 { EGL_ALPHA_SIZE, 8 }, 917 { EGL_BLUE_SIZE, 8 }, 918 { EGL_GREEN_SIZE, 8 }, 919 { EGL_RED_SIZE, 8 }, 920 { EGL_DEPTH_SIZE, 16 }, 921 { EGL_CONFIG_ID, 3 }, 922 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 923}; 924 925static config_pair_t const config_4_attribute_list[] = { 926 { EGL_BUFFER_SIZE, 8 }, 927 { EGL_ALPHA_SIZE, 8 }, 928 { EGL_BLUE_SIZE, 0 }, 929 { EGL_GREEN_SIZE, 0 }, 930 { EGL_RED_SIZE, 0 }, 931 { EGL_DEPTH_SIZE, 0 }, 932 { EGL_CONFIG_ID, 4 }, 933 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 934}; 935 936static config_pair_t const config_5_attribute_list[] = { 937 { EGL_BUFFER_SIZE, 8 }, 938 { EGL_ALPHA_SIZE, 8 }, 939 { EGL_BLUE_SIZE, 0 }, 940 { EGL_GREEN_SIZE, 0 }, 941 { EGL_RED_SIZE, 0 }, 942 { EGL_DEPTH_SIZE, 16 }, 943 { EGL_CONFIG_ID, 5 }, 944 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 945}; 946 947static configs_t const gConfigs[] = { 948 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 949 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 950 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 951 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 952 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 953 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 954}; 955 956static config_management_t const gConfigManagement[] = { 957 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 958 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 959 { EGL_BLUE_SIZE, config_management_t::atLeast }, 960 { EGL_GREEN_SIZE, config_management_t::atLeast }, 961 { EGL_RED_SIZE, config_management_t::atLeast }, 962 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 963 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 964 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 965 { EGL_CONFIG_ID, config_management_t::exact }, 966 { EGL_LEVEL, config_management_t::exact }, 967 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::exact }, 968 { EGL_MAX_PBUFFER_PIXELS, config_management_t::exact }, 969 { EGL_MAX_PBUFFER_WIDTH, config_management_t::exact }, 970 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 971 { EGL_NATIVE_VISUAL_ID, config_management_t::exact }, 972 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 973 { EGL_SAMPLES, config_management_t::exact }, 974 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 975 { EGL_SURFACE_TYPE, config_management_t::mask }, 976 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 977 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 978 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 979 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 980 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 981 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 982 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 983 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 984}; 985 986static config_pair_t const config_defaults[] = { 987 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 988}; 989 990// ---------------------------------------------------------------------------- 991 992template<typename T> 993static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 994{ 995 while (first <= last) { 996 int mid = (first + last) / 2; 997 if (key > sortedArray[mid].key) { 998 first = mid + 1; 999 } else if (key < sortedArray[mid].key) { 1000 last = mid - 1; 1001 } else { 1002 return mid; 1003 } 1004 } 1005 return -1; 1006} 1007 1008static int isAttributeMatching(int i, EGLint attr, EGLint val) 1009{ 1010 // look for the attribute in all of our configs 1011 config_pair_t const* configFound = gConfigs[i].array; 1012 int index = binarySearch<config_pair_t>( 1013 gConfigs[i].array, 1014 0, gConfigs[i].size-1, 1015 attr); 1016 if (index < 0) { 1017 configFound = config_base_attribute_list; 1018 index = binarySearch<config_pair_t>( 1019 config_base_attribute_list, 1020 0, NELEM(config_base_attribute_list)-1, 1021 attr); 1022 } 1023 if (index >= 0) { 1024 // attribute found, check if this config could match 1025 int cfgMgtIndex = binarySearch<config_management_t>( 1026 gConfigManagement, 1027 0, NELEM(gConfigManagement)-1, 1028 attr); 1029 if (index >= 0) { 1030 bool match = gConfigManagement[cfgMgtIndex].match( 1031 val, configFound[index].value); 1032 if (match) { 1033 // this config matches 1034 return 1; 1035 } 1036 } else { 1037 // attribute not found. this should NEVER happen. 1038 } 1039 } else { 1040 // error, this attribute doesn't exist 1041 } 1042 return 0; 1043} 1044 1045static int makeCurrent(ogles_context_t* gl) 1046{ 1047 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1048 if (gl) { 1049 egl_context_t* c = egl_context_t::context(gl); 1050 if (c->flags & egl_context_t::IS_CURRENT) { 1051 if (current != gl) { 1052 // it is an error to set a context current, if it's already 1053 // current to another thread 1054 return -1; 1055 } 1056 } else { 1057 if (current) { 1058 // mark the current context as not current, and flush 1059 glFlush(); 1060 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1061 } 1062 } 1063 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1064 // The context is not current, make it current! 1065 setGlThreadSpecific(gl); 1066 c->flags |= egl_context_t::IS_CURRENT; 1067 } 1068 } else { 1069 if (current) { 1070 // mark the current context as not current, and flush 1071 glFlush(); 1072 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1073 } 1074 // this thread has no context attached to it 1075 setGlThreadSpecific(0); 1076 } 1077 return 0; 1078} 1079 1080static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1081 EGLint attribute, EGLint *value) 1082{ 1083 size_t numConfigs = NELEM(gConfigs); 1084 int index = (int)config; 1085 if (uint32_t(index) >= numConfigs) 1086 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1087 1088 int attrIndex; 1089 attrIndex = binarySearch<config_pair_t>( 1090 gConfigs[index].array, 1091 0, gConfigs[index].size-1, 1092 attribute); 1093 if (attrIndex>=0) { 1094 *value = gConfigs[index].array[attrIndex].value; 1095 return EGL_TRUE; 1096 } 1097 1098 attrIndex = binarySearch<config_pair_t>( 1099 config_base_attribute_list, 1100 0, NELEM(config_base_attribute_list)-1, 1101 attribute); 1102 if (attrIndex>=0) { 1103 *value = config_base_attribute_list[attrIndex].value; 1104 return EGL_TRUE; 1105 } 1106 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1107} 1108 1109static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1110 NativeWindowType window, const EGLint *attrib_list) 1111{ 1112 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1113 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1114 if (window == 0) 1115 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1116 1117 EGLint surfaceType; 1118 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1119 return EGL_FALSE; 1120 1121 if (!(surfaceType & EGL_WINDOW_BIT)) 1122 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1123 1124 EGLint configID; 1125 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1126 return EGL_FALSE; 1127 1128 int32_t depthFormat; 1129 int32_t pixelFormat; 1130 switch(configID) { 1131 case 0: 1132 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1133 depthFormat = 0; 1134 break; 1135 case 1: 1136 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1137 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1138 break; 1139 case 2: 1140 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1141 depthFormat = 0; 1142 break; 1143 case 3: 1144 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1145 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1146 break; 1147 case 4: 1148 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1149 depthFormat = 0; 1150 break; 1151 case 5: 1152 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1153 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1154 break; 1155 default: 1156 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1157 } 1158 1159 // FIXME: we don't have access to the pixelFormat here just yet. 1160 // (it's possible that the surface is not fully initialized) 1161 // maybe this should be done after the page-flip 1162 //if (EGLint(info.format) != pixelFormat) 1163 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1164 1165 egl_surface_t* surface; 1166 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1167 static_cast<android_native_window_t*>(window)); 1168 1169 if (!surface->isValid()) { 1170 // there was a problem in the ctor, the error 1171 // flag has been set. 1172 delete surface; 1173 surface = 0; 1174 } 1175 return surface; 1176} 1177 1178static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1179 NativePixmapType pixmap, const EGLint *attrib_list) 1180{ 1181 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1182 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1183 if (pixmap == 0) 1184 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1185 1186 EGLint surfaceType; 1187 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1188 return EGL_FALSE; 1189 1190 if (!(surfaceType & EGL_PIXMAP_BIT)) 1191 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1192 1193 EGLint configID; 1194 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1195 return EGL_FALSE; 1196 1197 int32_t depthFormat; 1198 int32_t pixelFormat; 1199 switch(configID) { 1200 case 0: 1201 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1202 depthFormat = 0; 1203 break; 1204 case 1: 1205 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1206 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1207 break; 1208 case 2: 1209 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1210 depthFormat = 0; 1211 break; 1212 case 3: 1213 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1214 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1215 break; 1216 case 4: 1217 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1218 depthFormat = 0; 1219 break; 1220 case 5: 1221 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1222 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1223 break; 1224 default: 1225 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1226 } 1227 1228 if (pixmap->format != pixelFormat) 1229 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1230 1231 egl_surface_t* surface = 1232 new egl_pixmap_surface_t(dpy, config, depthFormat, 1233 static_cast<egl_native_pixmap_t*>(pixmap)); 1234 1235 if (!surface->isValid()) { 1236 // there was a problem in the ctor, the error 1237 // flag has been set. 1238 delete surface; 1239 surface = 0; 1240 } 1241 return surface; 1242} 1243 1244static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1245 const EGLint *attrib_list) 1246{ 1247 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1248 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1249 1250 EGLint surfaceType; 1251 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1252 return EGL_FALSE; 1253 1254 if (!(surfaceType & EGL_PBUFFER_BIT)) 1255 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1256 1257 EGLint configID; 1258 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1259 return EGL_FALSE; 1260 1261 int32_t depthFormat; 1262 int32_t pixelFormat; 1263 switch(configID) { 1264 case 0: 1265 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1266 depthFormat = 0; 1267 break; 1268 case 1: 1269 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1270 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1271 break; 1272 case 2: 1273 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1274 depthFormat = 0; 1275 break; 1276 case 3: 1277 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1278 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1279 break; 1280 case 4: 1281 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1282 depthFormat = 0; 1283 break; 1284 case 5: 1285 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1286 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1287 break; 1288 default: 1289 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1290 } 1291 1292 int32_t w = 0; 1293 int32_t h = 0; 1294 while (attrib_list[0]) { 1295 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1296 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1297 attrib_list+=2; 1298 } 1299 1300 egl_surface_t* surface = 1301 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1302 1303 if (!surface->isValid()) { 1304 // there was a problem in the ctor, the error 1305 // flag has been set. 1306 delete surface; 1307 surface = 0; 1308 } 1309 return surface; 1310} 1311 1312// ---------------------------------------------------------------------------- 1313}; // namespace android 1314// ---------------------------------------------------------------------------- 1315 1316using namespace android; 1317 1318// ---------------------------------------------------------------------------- 1319// Initialization 1320// ---------------------------------------------------------------------------- 1321 1322EGLDisplay eglGetDisplay(NativeDisplayType display) 1323{ 1324#ifndef HAVE_ANDROID_OS 1325 // this just needs to be done once 1326 if (gGLKey == -1) { 1327 pthread_mutex_lock(&gInitMutex); 1328 if (gGLKey == -1) 1329 pthread_key_create(&gGLKey, NULL); 1330 pthread_mutex_unlock(&gInitMutex); 1331 } 1332#endif 1333 if (display == EGL_DEFAULT_DISPLAY) { 1334 EGLDisplay dpy = (EGLDisplay)1; 1335 egl_display_t& d = egl_display_t::get_display(dpy); 1336 d.type = display; 1337 return dpy; 1338 } 1339 return EGL_NO_DISPLAY; 1340} 1341 1342EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1343{ 1344 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1345 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1346 1347 EGLBoolean res = EGL_TRUE; 1348 egl_display_t& d = egl_display_t::get_display(dpy); 1349 1350 if (android_atomic_inc(&d.initialized) == 0) { 1351 // initialize stuff here if needed 1352 //pthread_mutex_lock(&gInitMutex); 1353 //pthread_mutex_unlock(&gInitMutex); 1354 } 1355 1356 if (res == EGL_TRUE) { 1357 if (major != NULL) *major = VERSION_MAJOR; 1358 if (minor != NULL) *minor = VERSION_MINOR; 1359 } 1360 return res; 1361} 1362 1363EGLBoolean eglTerminate(EGLDisplay dpy) 1364{ 1365 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1366 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1367 1368 EGLBoolean res = EGL_TRUE; 1369 egl_display_t& d = egl_display_t::get_display(dpy); 1370 if (android_atomic_dec(&d.initialized) == 1) { 1371 // TODO: destroy all resources (surfaces, contexts, etc...) 1372 //pthread_mutex_lock(&gInitMutex); 1373 //pthread_mutex_unlock(&gInitMutex); 1374 } 1375 return res; 1376} 1377 1378// ---------------------------------------------------------------------------- 1379// configuration 1380// ---------------------------------------------------------------------------- 1381 1382EGLBoolean eglGetConfigs( EGLDisplay dpy, 1383 EGLConfig *configs, 1384 EGLint config_size, EGLint *num_config) 1385{ 1386 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1387 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1388 1389 GLint numConfigs = NELEM(gConfigs); 1390 if (!configs) { 1391 *num_config = numConfigs; 1392 return EGL_TRUE; 1393 } 1394 GLint i; 1395 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1396 *configs++ = (EGLConfig)i; 1397 } 1398 *num_config = i; 1399 return EGL_TRUE; 1400} 1401 1402EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1403 EGLConfig *configs, EGLint config_size, 1404 EGLint *num_config) 1405{ 1406 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1407 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1408 1409 if (ggl_unlikely(num_config==0)) { 1410 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1411 } 1412 1413 if (ggl_unlikely(attrib_list==0)) { 1414 *num_config = 0; 1415 return EGL_TRUE; 1416 } 1417 1418 int numAttributes = 0; 1419 int numConfigs = NELEM(gConfigs); 1420 uint32_t possibleMatch = (1<<numConfigs)-1; 1421 while(possibleMatch && *attrib_list != EGL_NONE) { 1422 numAttributes++; 1423 EGLint attr = *attrib_list++; 1424 EGLint val = *attrib_list++; 1425 for (int i=0 ; i<numConfigs ; i++) { 1426 if (!(possibleMatch & (1<<i))) 1427 continue; 1428 if (isAttributeMatching(i, attr, val) == 0) { 1429 possibleMatch &= ~(1<<i); 1430 } 1431 } 1432 } 1433 1434 // now, handle the attributes which have a useful default value 1435 for (size_t j=0 ; j<NELEM(config_defaults) ; j++) { 1436 // see if this attribute was specified, if not apply its 1437 // default value 1438 if (binarySearch<config_pair_t>( 1439 (config_pair_t const*)attrib_list, 1440 0, numAttributes, 1441 config_defaults[j].key) < 0) 1442 { 1443 for (int i=0 ; i<numConfigs ; i++) { 1444 if (!(possibleMatch & (1<<i))) 1445 continue; 1446 if (isAttributeMatching(i, 1447 config_defaults[j].key, 1448 config_defaults[j].value) == 0) 1449 { 1450 possibleMatch &= ~(1<<i); 1451 } 1452 } 1453 } 1454 } 1455 1456 // return the configurations found 1457 int n=0; 1458 if (possibleMatch) { 1459 if (configs) { 1460 for (int i=0 ; config_size && i<numConfigs ; i++) { 1461 if (possibleMatch & (1<<i)) { 1462 *configs++ = (EGLConfig)i; 1463 config_size--; 1464 n++; 1465 } 1466 } 1467 } else { 1468 for (int i=0 ; i<numConfigs ; i++) { 1469 if (possibleMatch & (1<<i)) { 1470 n++; 1471 } 1472 } 1473 } 1474 } 1475 *num_config = n; 1476 return EGL_TRUE; 1477} 1478 1479EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1480 EGLint attribute, EGLint *value) 1481{ 1482 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1483 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1484 1485 return getConfigAttrib(dpy, config, attribute, value); 1486} 1487 1488// ---------------------------------------------------------------------------- 1489// surfaces 1490// ---------------------------------------------------------------------------- 1491 1492EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1493 NativeWindowType window, 1494 const EGLint *attrib_list) 1495{ 1496 return createWindowSurface(dpy, config, window, attrib_list); 1497} 1498 1499EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1500 NativePixmapType pixmap, 1501 const EGLint *attrib_list) 1502{ 1503 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1504} 1505 1506EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1507 const EGLint *attrib_list) 1508{ 1509 return createPbufferSurface(dpy, config, attrib_list); 1510} 1511 1512EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1513{ 1514 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1515 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1516 if (eglSurface != EGL_NO_SURFACE) { 1517 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1518 if (surface->magic != egl_surface_t::MAGIC) 1519 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1520 if (surface->dpy != dpy) 1521 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1522 if (surface->ctx) { 1523 // FIXME: this surface is current check what the spec says 1524 surface->disconnect(); 1525 surface->ctx = 0; 1526 } 1527 delete surface; 1528 } 1529 return EGL_TRUE; 1530} 1531 1532EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1533 EGLint attribute, EGLint *value) 1534{ 1535 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1536 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1537 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1538 if (surface->dpy != dpy) 1539 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1540 1541 EGLBoolean ret = EGL_TRUE; 1542 switch (attribute) { 1543 case EGL_CONFIG_ID: 1544 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1545 break; 1546 case EGL_WIDTH: 1547 *value = surface->getWidth(); 1548 break; 1549 case EGL_HEIGHT: 1550 *value = surface->getHeight(); 1551 break; 1552 case EGL_LARGEST_PBUFFER: 1553 // not modified for a window or pixmap surface 1554 break; 1555 case EGL_TEXTURE_FORMAT: 1556 *value = EGL_NO_TEXTURE; 1557 break; 1558 case EGL_TEXTURE_TARGET: 1559 *value = EGL_NO_TEXTURE; 1560 break; 1561 case EGL_MIPMAP_TEXTURE: 1562 *value = EGL_FALSE; 1563 break; 1564 case EGL_MIPMAP_LEVEL: 1565 *value = 0; 1566 break; 1567 case EGL_RENDER_BUFFER: 1568 // TODO: return the real RENDER_BUFFER here 1569 *value = EGL_BACK_BUFFER; 1570 break; 1571 case EGL_HORIZONTAL_RESOLUTION: 1572 // pixel/mm * EGL_DISPLAY_SCALING 1573 *value = surface->getHorizontalResolution(); 1574 break; 1575 case EGL_VERTICAL_RESOLUTION: 1576 // pixel/mm * EGL_DISPLAY_SCALING 1577 *value = surface->getVerticalResolution(); 1578 break; 1579 case EGL_PIXEL_ASPECT_RATIO: { 1580 // w/h * EGL_DISPLAY_SCALING 1581 int wr = surface->getHorizontalResolution(); 1582 int hr = surface->getVerticalResolution(); 1583 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1584 } break; 1585 case EGL_SWAP_BEHAVIOR: 1586 *value = surface->getSwapBehavior(); 1587 break; 1588 default: 1589 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1590 } 1591 return ret; 1592} 1593 1594EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1595 EGLContext share_list, const EGLint *attrib_list) 1596{ 1597 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1598 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1599 1600 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1601 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1602 1603 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1604 c->flags = egl_context_t::NEVER_CURRENT; 1605 c->dpy = dpy; 1606 c->config = config; 1607 c->read = 0; 1608 c->draw = 0; 1609 return (EGLContext)gl; 1610} 1611 1612EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1613{ 1614 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1615 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1616 egl_context_t* c = egl_context_t::context(ctx); 1617 if (c->flags & egl_context_t::IS_CURRENT) 1618 setGlThreadSpecific(0); 1619 ogles_uninit((ogles_context_t*)ctx); 1620 return EGL_TRUE; 1621} 1622 1623EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1624 EGLSurface read, EGLContext ctx) 1625{ 1626 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1627 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1628 if (draw) { 1629 egl_surface_t* s = (egl_surface_t*)draw; 1630 if (s->dpy != dpy) 1631 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1632 // TODO: check that draw and read are compatible with the context 1633 } 1634 1635 EGLContext current_ctx = EGL_NO_CONTEXT; 1636 1637 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1638 return setError(EGL_BAD_MATCH, EGL_FALSE); 1639 1640 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1641 return setError(EGL_BAD_MATCH, EGL_FALSE); 1642 1643 if (ctx == EGL_NO_CONTEXT) { 1644 // if we're detaching, we need the current context 1645 current_ctx = (EGLContext)getGlThreadSpecific(); 1646 } else { 1647 egl_context_t* c = egl_context_t::context(ctx); 1648 egl_surface_t* d = (egl_surface_t*)draw; 1649 egl_surface_t* r = (egl_surface_t*)read; 1650 if ((d && d->ctx && d->ctx != ctx) || 1651 (r && r->ctx && r->ctx != ctx)) { 1652 // one of the surface is bound to a context in another thread 1653 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1654 } 1655 } 1656 1657 ogles_context_t* gl = (ogles_context_t*)ctx; 1658 if (makeCurrent(gl) == 0) { 1659 if (ctx) { 1660 egl_context_t* c = egl_context_t::context(ctx); 1661 egl_surface_t* d = (egl_surface_t*)draw; 1662 egl_surface_t* r = (egl_surface_t*)read; 1663 1664 if (c->draw) { 1665 reinterpret_cast<egl_surface_t*>(c->draw)->disconnect(); 1666 } 1667 if (c->read) { 1668 // FIXME: unlock/disconnect the read surface too 1669 } 1670 1671 c->draw = draw; 1672 c->read = read; 1673 1674 if (c->flags & egl_context_t::NEVER_CURRENT) { 1675 c->flags &= ~egl_context_t::NEVER_CURRENT; 1676 GLint w = 0; 1677 GLint h = 0; 1678 if (draw) { 1679 w = d->getWidth(); 1680 h = d->getHeight(); 1681 } 1682 ogles_surfaceport(gl, 0, 0); 1683 ogles_viewport(gl, 0, 0, w, h); 1684 ogles_scissor(gl, 0, 0, w, h); 1685 } 1686 if (d) { 1687 d->connect(); 1688 d->ctx = ctx; 1689 d->bindDrawSurface(gl); 1690 } 1691 if (r) { 1692 // FIXME: lock/connect the read surface too 1693 r->ctx = ctx; 1694 r->bindReadSurface(gl); 1695 } 1696 } else { 1697 // if surfaces were bound to the context bound to this thread 1698 // mark then as unbound. 1699 if (current_ctx) { 1700 egl_context_t* c = egl_context_t::context(current_ctx); 1701 egl_surface_t* d = (egl_surface_t*)c->draw; 1702 egl_surface_t* r = (egl_surface_t*)c->read; 1703 if (d) { 1704 c->draw = 0; 1705 d->ctx = EGL_NO_CONTEXT; 1706 d->disconnect(); 1707 } 1708 if (r) { 1709 c->read = 0; 1710 r->ctx = EGL_NO_CONTEXT; 1711 // FIXME: unlock/disconnect the read surface too 1712 } 1713 } 1714 } 1715 return EGL_TRUE; 1716 } 1717 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1718} 1719 1720EGLContext eglGetCurrentContext(void) 1721{ 1722 // eglGetCurrentContext returns the current EGL rendering context, 1723 // as specified by eglMakeCurrent. If no context is current, 1724 // EGL_NO_CONTEXT is returned. 1725 return (EGLContext)getGlThreadSpecific(); 1726} 1727 1728EGLSurface eglGetCurrentSurface(EGLint readdraw) 1729{ 1730 // eglGetCurrentSurface returns the read or draw surface attached 1731 // to the current EGL rendering context, as specified by eglMakeCurrent. 1732 // If no context is current, EGL_NO_SURFACE is returned. 1733 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1734 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1735 egl_context_t* c = egl_context_t::context(ctx); 1736 if (readdraw == EGL_READ) { 1737 return c->read; 1738 } else if (readdraw == EGL_DRAW) { 1739 return c->draw; 1740 } 1741 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1742} 1743 1744EGLDisplay eglGetCurrentDisplay(void) 1745{ 1746 // eglGetCurrentDisplay returns the current EGL display connection 1747 // for the current EGL rendering context, as specified by eglMakeCurrent. 1748 // If no context is current, EGL_NO_DISPLAY is returned. 1749 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1750 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1751 egl_context_t* c = egl_context_t::context(ctx); 1752 return c->dpy; 1753} 1754 1755EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1756 EGLint attribute, EGLint *value) 1757{ 1758 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1759 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1760 egl_context_t* c = egl_context_t::context(ctx); 1761 switch (attribute) { 1762 case EGL_CONFIG_ID: 1763 // Returns the ID of the EGL frame buffer configuration with 1764 // respect to which the context was created 1765 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1766 } 1767 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1768} 1769 1770EGLBoolean eglWaitGL(void) 1771{ 1772 return EGL_TRUE; 1773} 1774 1775EGLBoolean eglWaitNative(EGLint engine) 1776{ 1777 return EGL_TRUE; 1778} 1779 1780EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1781{ 1782 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1783 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1784 1785 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1786 if (d->dpy != dpy) 1787 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1788 1789 // post the surface 1790 d->swapBuffers(); 1791 1792 // if it's bound to a context, update the buffer 1793 if (d->ctx != EGL_NO_CONTEXT) { 1794 d->bindDrawSurface((ogles_context_t*)d->ctx); 1795 // if this surface is also the read surface of the context 1796 // it is bound to, make sure to update the read buffer as well. 1797 // The EGL spec is a little unclear about this. 1798 egl_context_t* c = egl_context_t::context(d->ctx); 1799 if (c->read == draw) { 1800 d->bindReadSurface((ogles_context_t*)d->ctx); 1801 } 1802 } 1803 1804 return EGL_TRUE; 1805} 1806 1807EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1808 NativePixmapType target) 1809{ 1810 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1811 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1812 // TODO: eglCopyBuffers() 1813 return EGL_FALSE; 1814} 1815 1816EGLint eglGetError(void) 1817{ 1818 return getError(); 1819} 1820 1821const char* eglQueryString(EGLDisplay dpy, EGLint name) 1822{ 1823 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1824 return setError(EGL_BAD_DISPLAY, (const char*)0); 1825 1826 switch (name) { 1827 case EGL_VENDOR: 1828 return gVendorString; 1829 case EGL_VERSION: 1830 return gVersionString; 1831 case EGL_EXTENSIONS: 1832 return gExtensionsString; 1833 case EGL_CLIENT_APIS: 1834 return gClientApiString; 1835 } 1836 return setError(EGL_BAD_PARAMETER, (const char *)0); 1837} 1838 1839// ---------------------------------------------------------------------------- 1840// EGL 1.1 1841// ---------------------------------------------------------------------------- 1842 1843EGLBoolean eglSurfaceAttrib( 1844 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1845{ 1846 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1847 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1848 // TODO: eglSurfaceAttrib() 1849 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1850} 1851 1852EGLBoolean eglBindTexImage( 1853 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1854{ 1855 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1856 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1857 // TODO: eglBindTexImage() 1858 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1859} 1860 1861EGLBoolean eglReleaseTexImage( 1862 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1863{ 1864 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1865 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1866 // TODO: eglReleaseTexImage() 1867 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1868} 1869 1870EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1871{ 1872 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1873 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1874 // TODO: eglSwapInterval() 1875 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1876} 1877 1878// ---------------------------------------------------------------------------- 1879// EGL 1.2 1880// ---------------------------------------------------------------------------- 1881 1882EGLBoolean eglBindAPI(EGLenum api) 1883{ 1884 if (api != EGL_OPENGL_ES_API) 1885 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1886 return EGL_TRUE; 1887} 1888 1889EGLenum eglQueryAPI(void) 1890{ 1891 return EGL_OPENGL_ES_API; 1892} 1893 1894EGLBoolean eglWaitClient(void) 1895{ 1896 glFinish(); 1897 return EGL_TRUE; 1898} 1899 1900EGLBoolean eglReleaseThread(void) 1901{ 1902 // TODO: eglReleaseThread() 1903 return EGL_TRUE; 1904} 1905 1906EGLSurface eglCreatePbufferFromClientBuffer( 1907 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 1908 EGLConfig config, const EGLint *attrib_list) 1909{ 1910 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1911 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1912 // TODO: eglCreatePbufferFromClientBuffer() 1913 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 1914} 1915 1916// ---------------------------------------------------------------------------- 1917// EGL_EGLEXT_VERSION 3 1918// ---------------------------------------------------------------------------- 1919 1920void (*eglGetProcAddress (const char *procname))() 1921{ 1922 extention_map_t const * const map = gExtentionMap; 1923 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 1924 if (!strcmp(procname, map[i].name)) { 1925 return map[i].address; 1926 } 1927 } 1928 return NULL; 1929} 1930 1931EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 1932 const EGLint *attrib_list) 1933{ 1934 EGLBoolean result = EGL_FALSE; 1935 return result; 1936} 1937 1938EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 1939{ 1940 EGLBoolean result = EGL_FALSE; 1941 return result; 1942} 1943 1944EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 1945 EGLClientBuffer buffer, const EGLint *attrib_list) 1946{ 1947 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 1948 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 1949 } 1950 if (ctx != EGL_NO_CONTEXT) { 1951 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 1952 } 1953 if (target != EGL_NATIVE_BUFFER_ANDROID) { 1954 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1955 } 1956 1957 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 1958 1959 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 1960 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1961 1962 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 1963 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1964 1965 native_buffer->common.incRef(&native_buffer->common); 1966 return (EGLImageKHR)native_buffer; 1967} 1968 1969EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 1970{ 1971 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 1972 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1973 } 1974 1975 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 1976 1977 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 1978 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1979 1980 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 1981 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1982 1983 native_buffer->common.decRef(&native_buffer->common); 1984 1985 return EGL_TRUE; 1986} 1987 1988// ---------------------------------------------------------------------------- 1989// ANDROID extensions 1990// ---------------------------------------------------------------------------- 1991 1992EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 1993 EGLint left, EGLint top, EGLint width, EGLint height) 1994{ 1995 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1996 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1997 1998 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1999 if (d->dpy != dpy) 2000 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2001 2002 // post the surface 2003 d->setSwapRectangle(left, top, width, height); 2004 2005 return EGL_TRUE; 2006} 2007 2008EGLClientBuffer eglGetRenderBufferANDROID(EGLDisplay dpy, EGLSurface draw) 2009{ 2010 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2011 return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0); 2012 2013 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2014 if (d->dpy != dpy) 2015 return setError(EGL_BAD_DISPLAY, (EGLClientBuffer)0); 2016 2017 // post the surface 2018 return d->getRenderBuffer(); 2019} 2020