egl.cpp revision 7189c0054e29a66d945f5657c48d5ecf538ea511
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 <ui/egl/android_natives.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(); 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} 193 194// ---------------------------------------------------------------------------- 195 196struct egl_window_surface_v2_t : public egl_surface_t 197{ 198 egl_window_surface_v2_t( 199 EGLDisplay dpy, EGLConfig config, 200 int32_t depthFormat, 201 android_native_window_t* window); 202 203 ~egl_window_surface_v2_t(); 204 205 virtual bool isValid() const { return nativeWindow->common.magic == ANDROID_NATIVE_WINDOW_MAGIC; } 206 virtual EGLBoolean swapBuffers(); 207 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 208 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 209 virtual void connect(); 210 virtual void disconnect(); 211 virtual EGLint getWidth() const { return buffer->width; } 212 virtual EGLint getHeight() const { return buffer->height; } 213 virtual EGLint getHorizontalResolution() const; 214 virtual EGLint getVerticalResolution() const; 215 virtual EGLint getRefreshRate() const; 216 virtual EGLint getSwapBehavior() const; 217 218private: 219 status_t lock(android_native_buffer_t* buf, int usage, void** vaddr); 220 status_t unlock(android_native_buffer_t* buf); 221 android_native_window_t* nativeWindow; 222 android_native_buffer_t* buffer; 223 gralloc_module_t const* module; 224 int width; 225 int height; 226 void* bits; 227}; 228 229egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 230 EGLConfig config, 231 int32_t depthFormat, 232 android_native_window_t* window) 233 : egl_surface_t(dpy, config, depthFormat), 234 nativeWindow(window), buffer(0), module(0), bits(NULL) 235{ 236 hw_module_t const* pModule; 237 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 238 module = reinterpret_cast<gralloc_module_t const*>(pModule); 239 240 nativeWindow->common.incRef(&nativeWindow->common); 241 242 nativeWindow->dequeueBuffer(nativeWindow, &buffer); 243 244 width = buffer->width; 245 height = buffer->height; 246 if (depthFormat) { 247 depth.width = width; 248 depth.height = height; 249 depth.stride = depth.width; // use the width here 250 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 251 if (depth.data == 0) { 252 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 253 return; 254 } 255 } 256 257 buffer->common.incRef(&buffer->common); 258} 259 260void egl_window_surface_v2_t::connect() 261{ 262 // Lock the buffer 263 nativeWindow->lockBuffer(nativeWindow, buffer); 264 lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN, &bits); 265} 266 267void egl_window_surface_v2_t::disconnect() 268{ 269 if (buffer) { 270 bits = NULL; 271 unlock(buffer); 272 } 273} 274 275status_t egl_window_surface_v2_t::lock( 276 android_native_buffer_t* buf, int usage, void** vaddr) 277{ 278 int err = module->lock(module, buf->handle, 279 usage, 0, 0, buf->width, buf->height, vaddr); 280 return err; 281} 282 283status_t egl_window_surface_v2_t::unlock(android_native_buffer_t* buf) 284{ 285 int err = module->unlock(module, buf->handle); 286 return err; 287} 288 289 290egl_window_surface_v2_t::~egl_window_surface_v2_t() { 291 if (buffer) { 292 buffer->common.decRef(&buffer->common); 293 } 294 nativeWindow->common.decRef(&nativeWindow->common); 295} 296 297EGLBoolean egl_window_surface_v2_t::swapBuffers() 298{ 299 // TODO: this is roughly the code needed for preserving the back buffer 300 // efficiently. dirty is the area that has been modified. 301 //Region newDirty(dirty); 302 //newDirty.andSelf(Rect(nativeWindow->width, nativeWindow->height)); 303 //mDirty = newDirty; 304 //const Region copyback(mDirty.subtract(newDirty)); 305 //mDisplaySurface->copyFrontToBack(copyback); 306 307 308 unlock(buffer); 309 nativeWindow->queueBuffer(nativeWindow, buffer); 310 buffer->common.decRef(&buffer->common); buffer = 0; 311 312 nativeWindow->dequeueBuffer(nativeWindow, &buffer); 313 buffer->common.incRef(&buffer->common); 314 315 // TODO: lockBuffer should rather be executed when the very first 316 // direct rendering occurs. 317 void* vaddr; 318 nativeWindow->lockBuffer(nativeWindow, buffer); 319 lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN, &bits); 320 321 if ((width != buffer->width) || (height != buffer->height)) { 322 // TODO: we probably should reset the swap rect here 323 // if the window size has changed 324 width = buffer->width; 325 height = buffer->height; 326 if (depth.data) { 327 free(depth.data); 328 depth.width = width; 329 depth.height = height; 330 depth.stride = buffer->stride; 331 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 332 if (depth.data == 0) { 333 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 334 return EGL_FALSE; 335 } 336 } 337 } 338 return EGL_TRUE; 339} 340 341#ifdef LIBAGL_USE_GRALLOC_COPYBITS 342 343static bool supportedCopybitsDestinationFormat(int format) { 344 // Hardware supported and no destination alpha 345 switch (format) { 346 case HAL_PIXEL_FORMAT_RGB_565: 347 case HAL_PIXEL_FORMAT_YCbCr_422_SP: 348 case HAL_PIXEL_FORMAT_YCbCr_420_SP: 349 return true; 350 default: 351 return false; 352 } 353} 354#endif 355 356EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 357{ 358 GGLSurface buffer; 359 buffer.version = sizeof(GGLSurface); 360 buffer.width = this->buffer->width; 361 buffer.height = this->buffer->height; 362 buffer.stride = this->buffer->stride; 363 buffer.data = (GGLubyte*)bits; 364 buffer.format = this->buffer->format; 365 gl->rasterizer.procs.colorBuffer(gl, &buffer); 366 if (depth.data != gl->rasterizer.state.buffers.depth.data) 367 gl->rasterizer.procs.depthBuffer(gl, &depth); 368#ifdef LIBAGL_USE_GRALLOC_COPYBITS 369 gl->copybits.drawSurfaceFd = -1; 370 if (supportedCopybitsDestinationFormat(buffer.format)) { 371 buffer_handle_t handle = this->buffer->handle; 372 if (handle != NULL) { 373 private_handle_t* hand = private_handle_t::dynamicCast(handle); 374 if (hand != NULL) { 375 if (hand->usesPhysicallyContiguousMemory()) { 376 gl->copybits.drawSurfaceFd = hand->fd; 377 } 378 } 379 } 380 } 381#endif // LIBAGL_USE_GRALLOC_COPYBITS 382 return EGL_TRUE; 383} 384EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 385{ 386 GGLSurface buffer; 387 buffer.version = sizeof(GGLSurface); 388 buffer.width = this->buffer->width; 389 buffer.height = this->buffer->height; 390 buffer.stride = this->buffer->stride; 391 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 392 buffer.format = this->buffer->format; 393 gl->rasterizer.procs.readBuffer(gl, &buffer); 394 return EGL_TRUE; 395} 396EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 397 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 398} 399EGLint egl_window_surface_v2_t::getVerticalResolution() const { 400 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 401} 402EGLint egl_window_surface_v2_t::getRefreshRate() const { 403 return (60 * EGL_DISPLAY_SCALING); // FIXME 404} 405EGLint egl_window_surface_v2_t::getSwapBehavior() const { 406 //uint32_t flags = nativeWindow->flags; 407 //if (flags & SURFACE_FLAG_PRESERVE_CONTENT) 408 // return EGL_BUFFER_PRESERVED; 409 // This is now a feature of EGL, currently we don't preserve 410 // the content of the buffers. 411 return EGL_BUFFER_DESTROYED; 412} 413 414// ---------------------------------------------------------------------------- 415 416struct egl_pixmap_surface_t : public egl_surface_t 417{ 418 egl_pixmap_surface_t( 419 EGLDisplay dpy, EGLConfig config, 420 int32_t depthFormat, 421 egl_native_pixmap_t const * pixmap); 422 423 virtual ~egl_pixmap_surface_t() { } 424 425 virtual bool isValid() const { return nativePixmap.version == sizeof(egl_native_pixmap_t); } 426 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 427 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 428 virtual EGLint getWidth() const { return nativePixmap.width; } 429 virtual EGLint getHeight() const { return nativePixmap.height; } 430private: 431 egl_native_pixmap_t nativePixmap; 432}; 433 434egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 435 EGLConfig config, 436 int32_t depthFormat, 437 egl_native_pixmap_t const * pixmap) 438 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 439{ 440 if (depthFormat) { 441 depth.width = pixmap->width; 442 depth.height = pixmap->height; 443 depth.stride = depth.width; // use the width here 444 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 445 if (depth.data == 0) { 446 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 447 return; 448 } 449 } 450} 451EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 452{ 453 GGLSurface buffer; 454 buffer.version = sizeof(GGLSurface); 455 buffer.width = nativePixmap.width; 456 buffer.height = nativePixmap.height; 457 buffer.stride = nativePixmap.stride; 458 buffer.data = nativePixmap.data; 459 buffer.format = nativePixmap.format; 460 461 gl->rasterizer.procs.colorBuffer(gl, &buffer); 462 if (depth.data != gl->rasterizer.state.buffers.depth.data) 463 gl->rasterizer.procs.depthBuffer(gl, &depth); 464 return EGL_TRUE; 465} 466EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 467{ 468 GGLSurface buffer; 469 buffer.version = sizeof(GGLSurface); 470 buffer.width = nativePixmap.width; 471 buffer.height = nativePixmap.height; 472 buffer.stride = nativePixmap.stride; 473 buffer.data = nativePixmap.data; 474 buffer.format = nativePixmap.format; 475 gl->rasterizer.procs.readBuffer(gl, &buffer); 476 return EGL_TRUE; 477} 478 479// ---------------------------------------------------------------------------- 480 481struct egl_pbuffer_surface_t : public egl_surface_t 482{ 483 egl_pbuffer_surface_t( 484 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 485 int32_t w, int32_t h, int32_t f); 486 487 virtual ~egl_pbuffer_surface_t(); 488 489 virtual bool isValid() const { return pbuffer.data != 0; } 490 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 491 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 492 virtual EGLint getWidth() const { return pbuffer.width; } 493 virtual EGLint getHeight() const { return pbuffer.height; } 494private: 495 GGLSurface pbuffer; 496}; 497 498egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 499 EGLConfig config, int32_t depthFormat, 500 int32_t w, int32_t h, int32_t f) 501 : egl_surface_t(dpy, config, depthFormat) 502{ 503 size_t size = w*h; 504 switch (f) { 505 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 506 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 507 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 508 default: 509 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 510 pbuffer.data = 0; 511 break; 512 } 513 pbuffer.version = sizeof(GGLSurface); 514 pbuffer.width = w; 515 pbuffer.height = h; 516 pbuffer.stride = w; 517 pbuffer.data = (GGLubyte*)malloc(size); 518 pbuffer.format = f; 519 520 if (depthFormat) { 521 depth.width = pbuffer.width; 522 depth.height = pbuffer.height; 523 depth.stride = depth.width; // use the width here 524 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 525 if (depth.data == 0) { 526 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 527 return; 528 } 529 } 530} 531egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 532 free(pbuffer.data); 533} 534EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 535{ 536 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 537 if (depth.data != gl->rasterizer.state.buffers.depth.data) 538 gl->rasterizer.procs.depthBuffer(gl, &depth); 539 return EGL_TRUE; 540} 541EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 542{ 543 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 544 return EGL_TRUE; 545} 546 547// ---------------------------------------------------------------------------- 548 549struct config_pair_t { 550 GLint key; 551 GLint value; 552}; 553 554struct configs_t { 555 const config_pair_t* array; 556 int size; 557}; 558 559struct config_management_t { 560 GLint key; 561 bool (*match)(GLint reqValue, GLint confValue); 562 static bool atLeast(GLint reqValue, GLint confValue) { 563 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 564 } 565 static bool exact(GLint reqValue, GLint confValue) { 566 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 567 } 568 static bool mask(GLint reqValue, GLint confValue) { 569 return (confValue & reqValue) == reqValue; 570 } 571}; 572 573// ---------------------------------------------------------------------------- 574 575#define VERSION_MAJOR 1 576#define VERSION_MINOR 2 577static char const * const gVendorString = "Google Inc."; 578static char const * const gVersionString = "1.2 Android Driver"; 579static char const * const gClientApiString = "OpenGL ES"; 580static char const * const gExtensionsString = 581 "KHR_image_base " 582 // "KHR_image_pixmap " 583 "EGL_ANDROID_image_native_buffer " 584 ; 585 586// ---------------------------------------------------------------------------- 587 588struct extention_map_t { 589 const char * const name; 590 __eglMustCastToProperFunctionPointerType address; 591}; 592 593static const extention_map_t gExtentionMap[] = { 594 { "glDrawTexsOES", 595 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 596 { "glDrawTexiOES", 597 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 598 { "glDrawTexfOES", 599 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 600 { "glDrawTexxOES", 601 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 602 { "glDrawTexsvOES", 603 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 604 { "glDrawTexivOES", 605 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 606 { "glDrawTexfvOES", 607 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 608 { "glDrawTexxvOES", 609 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 610 { "glQueryMatrixxOES", 611 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 612 { "glEGLImageTargetTexture2DOES", 613 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 614 { "glEGLImageTargetRenderbufferStorageOES", 615 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 616 { "glClipPlanef", 617 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 618 { "glClipPlanex", 619 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 620 { "glBindBuffer", 621 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 622 { "glBufferData", 623 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 624 { "glBufferSubData", 625 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 626 { "glDeleteBuffers", 627 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 628 { "glGenBuffers", 629 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 630}; 631 632/* 633 * In the lists below, attributes names MUST be sorted. 634 * Additionally, all configs must be sorted according to 635 * the EGL specification. 636 */ 637 638static config_pair_t const config_base_attribute_list[] = { 639 { EGL_STENCIL_SIZE, 0 }, 640 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 641 { EGL_LEVEL, 0 }, 642 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 643 { EGL_MAX_PBUFFER_PIXELS, 644 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 645 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 646 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 647 { EGL_NATIVE_VISUAL_ID, 0 }, 648 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 649 { EGL_SAMPLES, 0 }, 650 { EGL_SAMPLE_BUFFERS, 0 }, 651 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 652 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 653 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 654 { EGL_TRANSPARENT_RED_VALUE, 0 }, 655 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 656 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 657 { EGL_MIN_SWAP_INTERVAL, 1 }, 658 { EGL_MAX_SWAP_INTERVAL, 4 }, 659}; 660 661// These configs can override the base attribute list 662// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 663 664static config_pair_t const config_0_attribute_list[] = { 665 { EGL_BUFFER_SIZE, 16 }, 666 { EGL_ALPHA_SIZE, 0 }, 667 { EGL_BLUE_SIZE, 5 }, 668 { EGL_GREEN_SIZE, 6 }, 669 { EGL_RED_SIZE, 5 }, 670 { EGL_DEPTH_SIZE, 0 }, 671 { EGL_CONFIG_ID, 0 }, 672 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 673}; 674 675static config_pair_t const config_1_attribute_list[] = { 676 { EGL_BUFFER_SIZE, 16 }, 677 { EGL_ALPHA_SIZE, 0 }, 678 { EGL_BLUE_SIZE, 5 }, 679 { EGL_GREEN_SIZE, 6 }, 680 { EGL_RED_SIZE, 5 }, 681 { EGL_DEPTH_SIZE, 16 }, 682 { EGL_CONFIG_ID, 1 }, 683 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 684}; 685 686static config_pair_t const config_2_attribute_list[] = { 687 { EGL_BUFFER_SIZE, 32 }, 688 { EGL_ALPHA_SIZE, 8 }, 689 { EGL_BLUE_SIZE, 8 }, 690 { EGL_GREEN_SIZE, 8 }, 691 { EGL_RED_SIZE, 8 }, 692 { EGL_DEPTH_SIZE, 0 }, 693 { EGL_CONFIG_ID, 2 }, 694 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 695}; 696 697static config_pair_t const config_3_attribute_list[] = { 698 { EGL_BUFFER_SIZE, 32 }, 699 { EGL_ALPHA_SIZE, 8 }, 700 { EGL_BLUE_SIZE, 8 }, 701 { EGL_GREEN_SIZE, 8 }, 702 { EGL_RED_SIZE, 8 }, 703 { EGL_DEPTH_SIZE, 16 }, 704 { EGL_CONFIG_ID, 3 }, 705 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 706}; 707 708static config_pair_t const config_4_attribute_list[] = { 709 { EGL_BUFFER_SIZE, 8 }, 710 { EGL_ALPHA_SIZE, 8 }, 711 { EGL_BLUE_SIZE, 0 }, 712 { EGL_GREEN_SIZE, 0 }, 713 { EGL_RED_SIZE, 0 }, 714 { EGL_DEPTH_SIZE, 0 }, 715 { EGL_CONFIG_ID, 4 }, 716 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 717}; 718 719static config_pair_t const config_5_attribute_list[] = { 720 { EGL_BUFFER_SIZE, 8 }, 721 { EGL_ALPHA_SIZE, 8 }, 722 { EGL_BLUE_SIZE, 0 }, 723 { EGL_GREEN_SIZE, 0 }, 724 { EGL_RED_SIZE, 0 }, 725 { EGL_DEPTH_SIZE, 16 }, 726 { EGL_CONFIG_ID, 5 }, 727 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 728}; 729 730static configs_t const gConfigs[] = { 731 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 732 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 733 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 734 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 735 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 736 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 737}; 738 739static config_management_t const gConfigManagement[] = { 740 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 741 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 742 { EGL_BLUE_SIZE, config_management_t::atLeast }, 743 { EGL_GREEN_SIZE, config_management_t::atLeast }, 744 { EGL_RED_SIZE, config_management_t::atLeast }, 745 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 746 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 747 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 748 { EGL_CONFIG_ID, config_management_t::exact }, 749 { EGL_LEVEL, config_management_t::exact }, 750 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::exact }, 751 { EGL_MAX_PBUFFER_PIXELS, config_management_t::exact }, 752 { EGL_MAX_PBUFFER_WIDTH, config_management_t::exact }, 753 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 754 { EGL_NATIVE_VISUAL_ID, config_management_t::exact }, 755 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 756 { EGL_SAMPLES, config_management_t::exact }, 757 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 758 { EGL_SURFACE_TYPE, config_management_t::mask }, 759 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 760 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 761 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 762 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 763 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 764 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 765 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 766 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 767}; 768 769static config_pair_t const config_defaults[] = { 770 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 771}; 772 773// ---------------------------------------------------------------------------- 774 775template<typename T> 776static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 777{ 778 while (first <= last) { 779 int mid = (first + last) / 2; 780 if (key > sortedArray[mid].key) { 781 first = mid + 1; 782 } else if (key < sortedArray[mid].key) { 783 last = mid - 1; 784 } else { 785 return mid; 786 } 787 } 788 return -1; 789} 790 791static int isAttributeMatching(int i, EGLint attr, EGLint val) 792{ 793 // look for the attribute in all of our configs 794 config_pair_t const* configFound = gConfigs[i].array; 795 int index = binarySearch<config_pair_t>( 796 gConfigs[i].array, 797 0, gConfigs[i].size-1, 798 attr); 799 if (index < 0) { 800 configFound = config_base_attribute_list; 801 index = binarySearch<config_pair_t>( 802 config_base_attribute_list, 803 0, NELEM(config_base_attribute_list)-1, 804 attr); 805 } 806 if (index >= 0) { 807 // attribute found, check if this config could match 808 int cfgMgtIndex = binarySearch<config_management_t>( 809 gConfigManagement, 810 0, NELEM(gConfigManagement)-1, 811 attr); 812 if (index >= 0) { 813 bool match = gConfigManagement[cfgMgtIndex].match( 814 val, configFound[index].value); 815 if (match) { 816 // this config matches 817 return 1; 818 } 819 } else { 820 // attribute not found. this should NEVER happen. 821 } 822 } else { 823 // error, this attribute doesn't exist 824 } 825 return 0; 826} 827 828static int makeCurrent(ogles_context_t* gl) 829{ 830 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 831 if (gl) { 832 egl_context_t* c = egl_context_t::context(gl); 833 if (c->flags & egl_context_t::IS_CURRENT) { 834 if (current != gl) { 835 // it is an error to set a context current, if it's already 836 // current to another thread 837 return -1; 838 } 839 } else { 840 if (current) { 841 // mark the current context as not current, and flush 842 glFlush(); 843 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 844 } 845 } 846 if (!(c->flags & egl_context_t::IS_CURRENT)) { 847 // The context is not current, make it current! 848 setGlThreadSpecific(gl); 849 c->flags |= egl_context_t::IS_CURRENT; 850 } 851 } else { 852 if (current) { 853 // mark the current context as not current, and flush 854 glFlush(); 855 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 856 } 857 // this thread has no context attached to it 858 setGlThreadSpecific(0); 859 } 860 return 0; 861} 862 863static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 864 EGLint attribute, EGLint *value) 865{ 866 size_t numConfigs = NELEM(gConfigs); 867 int index = (int)config; 868 if (uint32_t(index) >= numConfigs) 869 return setError(EGL_BAD_CONFIG, EGL_FALSE); 870 871 int attrIndex; 872 attrIndex = binarySearch<config_pair_t>( 873 gConfigs[index].array, 874 0, gConfigs[index].size-1, 875 attribute); 876 if (attrIndex>=0) { 877 *value = gConfigs[index].array[attrIndex].value; 878 return EGL_TRUE; 879 } 880 881 attrIndex = binarySearch<config_pair_t>( 882 config_base_attribute_list, 883 0, NELEM(config_base_attribute_list)-1, 884 attribute); 885 if (attrIndex>=0) { 886 *value = config_base_attribute_list[attrIndex].value; 887 return EGL_TRUE; 888 } 889 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 890} 891 892static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 893 NativeWindowType window, const EGLint *attrib_list) 894{ 895 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 896 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 897 if (window == 0) 898 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 899 900 EGLint surfaceType; 901 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 902 return EGL_FALSE; 903 904 if (!(surfaceType & EGL_WINDOW_BIT)) 905 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 906 907 EGLint configID; 908 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 909 return EGL_FALSE; 910 911 int32_t depthFormat; 912 int32_t pixelFormat; 913 switch(configID) { 914 case 0: 915 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 916 depthFormat = 0; 917 break; 918 case 1: 919 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 920 depthFormat = GGL_PIXEL_FORMAT_Z_16; 921 break; 922 case 2: 923 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 924 depthFormat = 0; 925 break; 926 case 3: 927 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 928 depthFormat = GGL_PIXEL_FORMAT_Z_16; 929 break; 930 case 4: 931 pixelFormat = GGL_PIXEL_FORMAT_A_8; 932 depthFormat = 0; 933 break; 934 case 5: 935 pixelFormat = GGL_PIXEL_FORMAT_A_8; 936 depthFormat = GGL_PIXEL_FORMAT_Z_16; 937 break; 938 default: 939 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 940 } 941 942 // FIXME: we don't have access to the pixelFormat here just yet. 943 // (it's possible that the surface is not fully initialized) 944 // maybe this should be done after the page-flip 945 //if (EGLint(info.format) != pixelFormat) 946 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 947 948 egl_surface_t* surface; 949 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 950 static_cast<android_native_window_t*>(window)); 951 952 if (!surface->isValid()) { 953 // there was a problem in the ctor, the error 954 // flag has been set. 955 delete surface; 956 surface = 0; 957 } 958 return surface; 959} 960 961static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 962 NativePixmapType pixmap, const EGLint *attrib_list) 963{ 964 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 965 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 966 if (pixmap == 0) 967 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 968 969 EGLint surfaceType; 970 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 971 return EGL_FALSE; 972 973 if (!(surfaceType & EGL_PIXMAP_BIT)) 974 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 975 976 EGLint configID; 977 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 978 return EGL_FALSE; 979 980 int32_t depthFormat; 981 int32_t pixelFormat; 982 switch(configID) { 983 case 0: 984 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 985 depthFormat = 0; 986 break; 987 case 1: 988 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 989 depthFormat = GGL_PIXEL_FORMAT_Z_16; 990 break; 991 case 2: 992 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 993 depthFormat = 0; 994 break; 995 case 3: 996 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 997 depthFormat = GGL_PIXEL_FORMAT_Z_16; 998 break; 999 case 4: 1000 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1001 depthFormat = 0; 1002 break; 1003 case 5: 1004 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1005 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1006 break; 1007 default: 1008 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1009 } 1010 1011 if (pixmap->format != pixelFormat) 1012 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1013 1014 egl_surface_t* surface = 1015 new egl_pixmap_surface_t(dpy, config, depthFormat, 1016 static_cast<egl_native_pixmap_t*>(pixmap)); 1017 1018 if (!surface->isValid()) { 1019 // there was a problem in the ctor, the error 1020 // flag has been set. 1021 delete surface; 1022 surface = 0; 1023 } 1024 return surface; 1025} 1026 1027static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1028 const EGLint *attrib_list) 1029{ 1030 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1031 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1032 1033 EGLint surfaceType; 1034 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1035 return EGL_FALSE; 1036 1037 if (!(surfaceType & EGL_PBUFFER_BIT)) 1038 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1039 1040 EGLint configID; 1041 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1042 return EGL_FALSE; 1043 1044 int32_t depthFormat; 1045 int32_t pixelFormat; 1046 switch(configID) { 1047 case 0: 1048 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1049 depthFormat = 0; 1050 break; 1051 case 1: 1052 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1053 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1054 break; 1055 case 2: 1056 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1057 depthFormat = 0; 1058 break; 1059 case 3: 1060 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1061 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1062 break; 1063 case 4: 1064 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1065 depthFormat = 0; 1066 break; 1067 case 5: 1068 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1069 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1070 break; 1071 default: 1072 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1073 } 1074 1075 int32_t w = 0; 1076 int32_t h = 0; 1077 while (attrib_list[0]) { 1078 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1079 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1080 attrib_list+=2; 1081 } 1082 1083 egl_surface_t* surface = 1084 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1085 1086 if (!surface->isValid()) { 1087 // there was a problem in the ctor, the error 1088 // flag has been set. 1089 delete surface; 1090 surface = 0; 1091 } 1092 return surface; 1093} 1094 1095// ---------------------------------------------------------------------------- 1096}; // namespace android 1097// ---------------------------------------------------------------------------- 1098 1099using namespace android; 1100 1101// ---------------------------------------------------------------------------- 1102// Initialization 1103// ---------------------------------------------------------------------------- 1104 1105EGLDisplay eglGetDisplay(NativeDisplayType display) 1106{ 1107#ifndef HAVE_ANDROID_OS 1108 // this just needs to be done once 1109 if (gGLKey == -1) { 1110 pthread_mutex_lock(&gInitMutex); 1111 if (gGLKey == -1) 1112 pthread_key_create(&gGLKey, NULL); 1113 pthread_mutex_unlock(&gInitMutex); 1114 } 1115#endif 1116 if (display == EGL_DEFAULT_DISPLAY) { 1117 EGLDisplay dpy = (EGLDisplay)1; 1118 egl_display_t& d = egl_display_t::get_display(dpy); 1119 d.type = display; 1120 return dpy; 1121 } 1122 return EGL_NO_DISPLAY; 1123} 1124 1125EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1126{ 1127 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1128 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1129 1130 EGLBoolean res = EGL_TRUE; 1131 egl_display_t& d = egl_display_t::get_display(dpy); 1132 1133 if (android_atomic_inc(&d.initialized) == 0) { 1134 // initialize stuff here if needed 1135 //pthread_mutex_lock(&gInitMutex); 1136 //pthread_mutex_unlock(&gInitMutex); 1137 } 1138 1139 if (res == EGL_TRUE) { 1140 if (major != NULL) *major = VERSION_MAJOR; 1141 if (minor != NULL) *minor = VERSION_MINOR; 1142 } 1143 return res; 1144} 1145 1146EGLBoolean eglTerminate(EGLDisplay dpy) 1147{ 1148 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1149 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1150 1151 EGLBoolean res = EGL_TRUE; 1152 egl_display_t& d = egl_display_t::get_display(dpy); 1153 if (android_atomic_dec(&d.initialized) == 1) { 1154 // TODO: destroy all resources (surfaces, contexts, etc...) 1155 //pthread_mutex_lock(&gInitMutex); 1156 //pthread_mutex_unlock(&gInitMutex); 1157 } 1158 return res; 1159} 1160 1161// ---------------------------------------------------------------------------- 1162// configuration 1163// ---------------------------------------------------------------------------- 1164 1165EGLBoolean eglGetConfigs( EGLDisplay dpy, 1166 EGLConfig *configs, 1167 EGLint config_size, EGLint *num_config) 1168{ 1169 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1170 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1171 1172 GLint numConfigs = NELEM(gConfigs); 1173 if (!configs) { 1174 *num_config = numConfigs; 1175 return EGL_TRUE; 1176 } 1177 GLint i; 1178 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1179 *configs++ = (EGLConfig)i; 1180 } 1181 *num_config = i; 1182 return EGL_TRUE; 1183} 1184 1185EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1186 EGLConfig *configs, EGLint config_size, 1187 EGLint *num_config) 1188{ 1189 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1190 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1191 1192 if (ggl_unlikely(num_config==0)) { 1193 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1194 } 1195 1196 if (ggl_unlikely(attrib_list==0)) { 1197 *num_config = 0; 1198 return EGL_TRUE; 1199 } 1200 1201 int numAttributes = 0; 1202 int numConfigs = NELEM(gConfigs); 1203 uint32_t possibleMatch = (1<<numConfigs)-1; 1204 while(possibleMatch && *attrib_list != EGL_NONE) { 1205 numAttributes++; 1206 EGLint attr = *attrib_list++; 1207 EGLint val = *attrib_list++; 1208 for (int i=0 ; i<numConfigs ; i++) { 1209 if (!(possibleMatch & (1<<i))) 1210 continue; 1211 if (isAttributeMatching(i, attr, val) == 0) { 1212 possibleMatch &= ~(1<<i); 1213 } 1214 } 1215 } 1216 1217 // now, handle the attributes which have a useful default value 1218 for (size_t j=0 ; j<NELEM(config_defaults) ; j++) { 1219 // see if this attribute was specified, if not apply its 1220 // default value 1221 if (binarySearch<config_pair_t>( 1222 (config_pair_t const*)attrib_list, 1223 0, numAttributes, 1224 config_defaults[j].key) < 0) 1225 { 1226 for (int i=0 ; i<numConfigs ; i++) { 1227 if (!(possibleMatch & (1<<i))) 1228 continue; 1229 if (isAttributeMatching(i, 1230 config_defaults[j].key, 1231 config_defaults[j].value) == 0) 1232 { 1233 possibleMatch &= ~(1<<i); 1234 } 1235 } 1236 } 1237 } 1238 1239 // return the configurations found 1240 int n=0; 1241 if (possibleMatch) { 1242 if (configs) { 1243 for (int i=0 ; config_size && i<numConfigs ; i++) { 1244 if (possibleMatch & (1<<i)) { 1245 *configs++ = (EGLConfig)i; 1246 config_size--; 1247 n++; 1248 } 1249 } 1250 } else { 1251 for (int i=0 ; i<numConfigs ; i++) { 1252 if (possibleMatch & (1<<i)) { 1253 n++; 1254 } 1255 } 1256 } 1257 } 1258 *num_config = n; 1259 return EGL_TRUE; 1260} 1261 1262EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1263 EGLint attribute, EGLint *value) 1264{ 1265 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1266 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1267 1268 return getConfigAttrib(dpy, config, attribute, value); 1269} 1270 1271// ---------------------------------------------------------------------------- 1272// surfaces 1273// ---------------------------------------------------------------------------- 1274 1275EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1276 NativeWindowType window, 1277 const EGLint *attrib_list) 1278{ 1279 return createWindowSurface(dpy, config, window, attrib_list); 1280} 1281 1282EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1283 NativePixmapType pixmap, 1284 const EGLint *attrib_list) 1285{ 1286 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1287} 1288 1289EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1290 const EGLint *attrib_list) 1291{ 1292 return createPbufferSurface(dpy, config, attrib_list); 1293} 1294 1295EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1296{ 1297 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1298 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1299 if (eglSurface != EGL_NO_SURFACE) { 1300 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1301 if (surface->magic != egl_surface_t::MAGIC) 1302 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1303 if (surface->dpy != dpy) 1304 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1305 if (surface->ctx) { 1306 // FIXME: this surface is current check what the spec says 1307 surface->disconnect(); 1308 surface->ctx = 0; 1309 } 1310 delete surface; 1311 } 1312 return EGL_TRUE; 1313} 1314 1315EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1316 EGLint attribute, EGLint *value) 1317{ 1318 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1319 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1320 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1321 if (surface->dpy != dpy) 1322 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1323 1324 EGLBoolean ret = EGL_TRUE; 1325 switch (attribute) { 1326 case EGL_CONFIG_ID: 1327 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1328 break; 1329 case EGL_WIDTH: 1330 *value = surface->getWidth(); 1331 break; 1332 case EGL_HEIGHT: 1333 *value = surface->getHeight(); 1334 break; 1335 case EGL_LARGEST_PBUFFER: 1336 // not modified for a window or pixmap surface 1337 break; 1338 case EGL_TEXTURE_FORMAT: 1339 *value = EGL_NO_TEXTURE; 1340 break; 1341 case EGL_TEXTURE_TARGET: 1342 *value = EGL_NO_TEXTURE; 1343 break; 1344 case EGL_MIPMAP_TEXTURE: 1345 *value = EGL_FALSE; 1346 break; 1347 case EGL_MIPMAP_LEVEL: 1348 *value = 0; 1349 break; 1350 case EGL_RENDER_BUFFER: 1351 // TODO: return the real RENDER_BUFFER here 1352 *value = EGL_BACK_BUFFER; 1353 break; 1354 case EGL_HORIZONTAL_RESOLUTION: 1355 // pixel/mm * EGL_DISPLAY_SCALING 1356 *value = surface->getHorizontalResolution(); 1357 break; 1358 case EGL_VERTICAL_RESOLUTION: 1359 // pixel/mm * EGL_DISPLAY_SCALING 1360 *value = surface->getVerticalResolution(); 1361 break; 1362 case EGL_PIXEL_ASPECT_RATIO: { 1363 // w/h * EGL_DISPLAY_SCALING 1364 int wr = surface->getHorizontalResolution(); 1365 int hr = surface->getVerticalResolution(); 1366 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1367 } break; 1368 case EGL_SWAP_BEHAVIOR: 1369 *value = surface->getSwapBehavior(); 1370 break; 1371 default: 1372 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1373 } 1374 return ret; 1375} 1376 1377EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1378 EGLContext share_list, const EGLint *attrib_list) 1379{ 1380 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1381 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1382 1383 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1384 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1385 1386 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1387 c->flags = egl_context_t::NEVER_CURRENT; 1388 c->dpy = dpy; 1389 c->config = config; 1390 c->read = 0; 1391 c->draw = 0; 1392 return (EGLContext)gl; 1393} 1394 1395EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1396{ 1397 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1398 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1399 egl_context_t* c = egl_context_t::context(ctx); 1400 if (c->flags & egl_context_t::IS_CURRENT) 1401 setGlThreadSpecific(0); 1402 ogles_uninit((ogles_context_t*)ctx); 1403 return EGL_TRUE; 1404} 1405 1406EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1407 EGLSurface read, EGLContext ctx) 1408{ 1409 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1410 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1411 if (draw) { 1412 egl_surface_t* s = (egl_surface_t*)draw; 1413 if (s->dpy != dpy) 1414 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1415 // TODO: check that draw and read are compatible with the context 1416 } 1417 1418 EGLContext current_ctx = EGL_NO_CONTEXT; 1419 1420 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1421 return setError(EGL_BAD_MATCH, EGL_FALSE); 1422 1423 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1424 return setError(EGL_BAD_MATCH, EGL_FALSE); 1425 1426 if (ctx == EGL_NO_CONTEXT) { 1427 // if we're detaching, we need the current context 1428 current_ctx = (EGLContext)getGlThreadSpecific(); 1429 } else { 1430 egl_context_t* c = egl_context_t::context(ctx); 1431 egl_surface_t* d = (egl_surface_t*)draw; 1432 egl_surface_t* r = (egl_surface_t*)read; 1433 if ((d && d->ctx && d->ctx != ctx) || 1434 (r && r->ctx && r->ctx != ctx)) { 1435 // one of the surface is bound to a context in another thread 1436 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1437 } 1438 } 1439 1440 ogles_context_t* gl = (ogles_context_t*)ctx; 1441 if (makeCurrent(gl) == 0) { 1442 if (ctx) { 1443 egl_context_t* c = egl_context_t::context(ctx); 1444 egl_surface_t* d = (egl_surface_t*)draw; 1445 egl_surface_t* r = (egl_surface_t*)read; 1446 1447 if (c->draw) { 1448 reinterpret_cast<egl_surface_t*>(c->draw)->disconnect(); 1449 } 1450 if (c->read) { 1451 // FIXME: unlock/disconnect the read surface too 1452 } 1453 1454 c->draw = draw; 1455 c->read = read; 1456 1457 if (c->flags & egl_context_t::NEVER_CURRENT) { 1458 c->flags &= ~egl_context_t::NEVER_CURRENT; 1459 GLint w = 0; 1460 GLint h = 0; 1461 if (draw) { 1462 w = d->getWidth(); 1463 h = d->getHeight(); 1464 } 1465 ogles_surfaceport(gl, 0, 0); 1466 ogles_viewport(gl, 0, 0, w, h); 1467 ogles_scissor(gl, 0, 0, w, h); 1468 } 1469 if (d) { 1470 d->connect(); 1471 d->ctx = ctx; 1472 d->bindDrawSurface(gl); 1473 } 1474 if (r) { 1475 // FIXME: lock/connect the read surface too 1476 r->ctx = ctx; 1477 r->bindReadSurface(gl); 1478 } 1479 } else { 1480 // if surfaces were bound to the context bound to this thread 1481 // mark then as unbound. 1482 if (current_ctx) { 1483 egl_context_t* c = egl_context_t::context(current_ctx); 1484 egl_surface_t* d = (egl_surface_t*)c->draw; 1485 egl_surface_t* r = (egl_surface_t*)c->read; 1486 if (d) { 1487 d->ctx = EGL_NO_CONTEXT; 1488 d->disconnect(); 1489 } 1490 if (r) { 1491 r->ctx = EGL_NO_CONTEXT; 1492 // FIXME: unlock/disconnect the read surface too 1493 } 1494 } 1495 } 1496 return EGL_TRUE; 1497 } 1498 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1499} 1500 1501EGLContext eglGetCurrentContext(void) 1502{ 1503 // eglGetCurrentContext returns the current EGL rendering context, 1504 // as specified by eglMakeCurrent. If no context is current, 1505 // EGL_NO_CONTEXT is returned. 1506 return (EGLContext)getGlThreadSpecific(); 1507} 1508 1509EGLSurface eglGetCurrentSurface(EGLint readdraw) 1510{ 1511 // eglGetCurrentSurface returns the read or draw surface attached 1512 // to the current EGL rendering context, as specified by eglMakeCurrent. 1513 // If no context is current, EGL_NO_SURFACE is returned. 1514 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1515 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1516 egl_context_t* c = egl_context_t::context(ctx); 1517 if (readdraw == EGL_READ) { 1518 return c->read; 1519 } else if (readdraw == EGL_DRAW) { 1520 return c->draw; 1521 } 1522 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1523} 1524 1525EGLDisplay eglGetCurrentDisplay(void) 1526{ 1527 // eglGetCurrentDisplay returns the current EGL display connection 1528 // for the current EGL rendering context, as specified by eglMakeCurrent. 1529 // If no context is current, EGL_NO_DISPLAY is returned. 1530 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1531 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1532 egl_context_t* c = egl_context_t::context(ctx); 1533 return c->dpy; 1534} 1535 1536EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1537 EGLint attribute, EGLint *value) 1538{ 1539 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1540 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1541 egl_context_t* c = egl_context_t::context(ctx); 1542 switch (attribute) { 1543 case EGL_CONFIG_ID: 1544 // Returns the ID of the EGL frame buffer configuration with 1545 // respect to which the context was created 1546 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1547 } 1548 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1549} 1550 1551EGLBoolean eglWaitGL(void) 1552{ 1553 return EGL_TRUE; 1554} 1555 1556EGLBoolean eglWaitNative(EGLint engine) 1557{ 1558 return EGL_TRUE; 1559} 1560 1561EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1562{ 1563 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1564 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1565 1566 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1567 if (d->dpy != dpy) 1568 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1569 1570 // post the surface 1571 d->swapBuffers(); 1572 1573 // if it's bound to a context, update the buffer 1574 if (d->ctx != EGL_NO_CONTEXT) { 1575 d->bindDrawSurface((ogles_context_t*)d->ctx); 1576 // if this surface is also the read surface of the context 1577 // it is bound to, make sure to update the read buffer as well. 1578 // The EGL spec is a little unclear about this. 1579 egl_context_t* c = egl_context_t::context(d->ctx); 1580 if (c->read == draw) { 1581 d->bindReadSurface((ogles_context_t*)d->ctx); 1582 } 1583 } 1584 1585 return EGL_TRUE; 1586} 1587 1588EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1589 NativePixmapType target) 1590{ 1591 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1592 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1593 // TODO: eglCopyBuffers() 1594 return EGL_FALSE; 1595} 1596 1597EGLint eglGetError(void) 1598{ 1599 return getError(); 1600} 1601 1602const char* eglQueryString(EGLDisplay dpy, EGLint name) 1603{ 1604 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1605 return setError(EGL_BAD_DISPLAY, (const char*)0); 1606 1607 switch (name) { 1608 case EGL_VENDOR: 1609 return gVendorString; 1610 case EGL_VERSION: 1611 return gVersionString; 1612 case EGL_EXTENSIONS: 1613 return gExtensionsString; 1614 case EGL_CLIENT_APIS: 1615 return gClientApiString; 1616 } 1617 return setError(EGL_BAD_PARAMETER, (const char *)0); 1618} 1619 1620// ---------------------------------------------------------------------------- 1621// EGL 1.1 1622// ---------------------------------------------------------------------------- 1623 1624EGLBoolean eglSurfaceAttrib( 1625 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1626{ 1627 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1628 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1629 // TODO: eglSurfaceAttrib() 1630 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1631} 1632 1633EGLBoolean eglBindTexImage( 1634 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1635{ 1636 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1637 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1638 // TODO: eglBindTexImage() 1639 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1640} 1641 1642EGLBoolean eglReleaseTexImage( 1643 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1644{ 1645 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1646 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1647 // TODO: eglReleaseTexImage() 1648 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1649} 1650 1651EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1652{ 1653 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1654 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1655 // TODO: eglSwapInterval() 1656 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1657} 1658 1659// ---------------------------------------------------------------------------- 1660// EGL 1.2 1661// ---------------------------------------------------------------------------- 1662 1663EGLBoolean eglBindAPI(EGLenum api) 1664{ 1665 if (api != EGL_OPENGL_ES_API) 1666 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1667 return EGL_TRUE; 1668} 1669 1670EGLenum eglQueryAPI(void) 1671{ 1672 return EGL_OPENGL_ES_API; 1673} 1674 1675EGLBoolean eglWaitClient(void) 1676{ 1677 glFinish(); 1678 return EGL_TRUE; 1679} 1680 1681EGLBoolean eglReleaseThread(void) 1682{ 1683 // TODO: eglReleaseThread() 1684 return EGL_TRUE; 1685} 1686 1687EGLSurface eglCreatePbufferFromClientBuffer( 1688 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 1689 EGLConfig config, const EGLint *attrib_list) 1690{ 1691 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1692 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1693 // TODO: eglCreatePbufferFromClientBuffer() 1694 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 1695} 1696 1697// ---------------------------------------------------------------------------- 1698// EGL_EGLEXT_VERSION 3 1699// ---------------------------------------------------------------------------- 1700 1701void (*eglGetProcAddress (const char *procname))() 1702{ 1703 extention_map_t const * const map = gExtentionMap; 1704 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 1705 if (!strcmp(procname, map[i].name)) { 1706 return map[i].address; 1707 } 1708 } 1709 return NULL; 1710} 1711 1712EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 1713 const EGLint *attrib_list) 1714{ 1715 EGLBoolean result = EGL_FALSE; 1716 return result; 1717} 1718 1719EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 1720{ 1721 EGLBoolean result = EGL_FALSE; 1722 return result; 1723} 1724 1725EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 1726 EGLClientBuffer buffer, const EGLint *attrib_list) 1727{ 1728 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 1729 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 1730 } 1731 if (ctx != EGL_NO_CONTEXT) { 1732 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 1733 } 1734 if (target != EGL_NATIVE_BUFFER_ANDROID) { 1735 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1736 } 1737 1738 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 1739 1740 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 1741 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1742 1743 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 1744 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1745 1746 native_buffer->common.incRef(&native_buffer->common); 1747 return (EGLImageKHR)native_buffer; 1748} 1749 1750EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 1751{ 1752 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 1753 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1754 } 1755 1756 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 1757 1758 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 1759 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1760 1761 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 1762 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1763 1764 native_buffer->common.decRef(&native_buffer->common); 1765 1766 return EGL_TRUE; 1767} 1768