egl.cpp revision 21c59d0070fe24a8e04e52ce04d511a924a9932f
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 <EGL/android_natives.h> 37#include <GLES/gl.h> 38#include <GLES/glext.h> 39 40#include <pixelflinger/format.h> 41#include <pixelflinger/pixelflinger.h> 42 43#include "context.h" 44#include "state.h" 45#include "texture.h" 46#include "matrix.h" 47 48#ifdef LIBAGL_USE_GRALLOC_COPYBITS 49#include "gralloc_priv.h" 50#endif // LIBAGL_USE_GRALLOC_COPYBITS 51 52#undef NELEM 53#define NELEM(x) (sizeof(x)/sizeof(*(x))) 54 55// ---------------------------------------------------------------------------- 56namespace android { 57// ---------------------------------------------------------------------------- 58 59const unsigned int NUM_DISPLAYS = 1; 60 61static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER; 62static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER; 63static pthread_key_t gEGLErrorKey = -1; 64#ifndef HAVE_ANDROID_OS 65namespace gl { 66pthread_key_t gGLKey = -1; 67}; // namespace gl 68#endif 69 70template<typename T> 71static T setError(GLint error, T returnValue) { 72 if (ggl_unlikely(gEGLErrorKey == -1)) { 73 pthread_mutex_lock(&gErrorKeyMutex); 74 if (gEGLErrorKey == -1) 75 pthread_key_create(&gEGLErrorKey, NULL); 76 pthread_mutex_unlock(&gErrorKeyMutex); 77 } 78 pthread_setspecific(gEGLErrorKey, (void*)error); 79 return returnValue; 80} 81 82static GLint getError() { 83 if (ggl_unlikely(gEGLErrorKey == -1)) 84 return EGL_SUCCESS; 85 GLint error = (GLint)pthread_getspecific(gEGLErrorKey); 86 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS); 87 return error; 88} 89 90// ---------------------------------------------------------------------------- 91 92struct egl_display_t 93{ 94 egl_display_t() : type(0), initialized(0) { } 95 96 static egl_display_t& get_display(EGLDisplay dpy); 97 98 static EGLBoolean is_valid(EGLDisplay dpy) { 99 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE; 100 } 101 102 NativeDisplayType type; 103 volatile int32_t initialized; 104}; 105 106static egl_display_t gDisplays[NUM_DISPLAYS]; 107 108egl_display_t& egl_display_t::get_display(EGLDisplay dpy) { 109 return gDisplays[uintptr_t(dpy)-1U]; 110} 111 112struct egl_context_t { 113 enum { 114 IS_CURRENT = 0x00010000, 115 NEVER_CURRENT = 0x00020000 116 }; 117 uint32_t flags; 118 EGLDisplay dpy; 119 EGLConfig config; 120 EGLSurface read; 121 EGLSurface draw; 122 123 static inline egl_context_t* context(EGLContext ctx) { 124 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx); 125 return static_cast<egl_context_t*>(gl->rasterizer.base); 126 } 127}; 128 129// ---------------------------------------------------------------------------- 130 131struct egl_surface_t 132{ 133 enum { 134 PAGE_FLIP = 0x00000001, 135 MAGIC = 0x31415265 136 }; 137 138 uint32_t magic; 139 EGLDisplay dpy; 140 EGLConfig config; 141 EGLContext ctx; 142 143 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat); 144 virtual ~egl_surface_t(); 145 virtual bool isValid() const = 0; 146 147 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 148 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 149 virtual void connect() {} 150 virtual void disconnect() {} 151 virtual EGLint getWidth() const = 0; 152 virtual EGLint getHeight() const = 0; 153 154 virtual EGLint getHorizontalResolution() const; 155 virtual EGLint getVerticalResolution() const; 156 virtual EGLint getRefreshRate() const; 157 virtual EGLint getSwapBehavior() const; 158 virtual EGLBoolean swapBuffers(); 159protected: 160 GGLSurface depth; 161}; 162 163egl_surface_t::egl_surface_t(EGLDisplay dpy, 164 EGLConfig config, 165 int32_t depthFormat) 166 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 167{ 168 depth.version = sizeof(GGLSurface); 169 depth.data = 0; 170 depth.format = depthFormat; 171} 172egl_surface_t::~egl_surface_t() 173{ 174 magic = 0; 175 free(depth.data); 176} 177EGLBoolean egl_surface_t::swapBuffers() { 178 return EGL_FALSE; 179} 180EGLint egl_surface_t::getHorizontalResolution() const { 181 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 182} 183EGLint egl_surface_t::getVerticalResolution() const { 184 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 185} 186EGLint egl_surface_t::getRefreshRate() const { 187 return (60 * EGL_DISPLAY_SCALING); 188} 189EGLint egl_surface_t::getSwapBehavior() const { 190 return EGL_BUFFER_PRESERVED; 191} 192 193// ---------------------------------------------------------------------------- 194 195struct egl_window_surface_v2_t : public egl_surface_t 196{ 197 egl_window_surface_v2_t( 198 EGLDisplay dpy, EGLConfig config, 199 int32_t depthFormat, 200 android_native_window_t* window); 201 202 ~egl_window_surface_v2_t(); 203 204 virtual bool isValid() const { return nativeWindow->common.magic == ANDROID_NATIVE_WINDOW_MAGIC; } 205 virtual EGLBoolean swapBuffers(); 206 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 207 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 208 virtual void connect(); 209 virtual void disconnect(); 210 virtual EGLint getWidth() const { return buffer->width; } 211 virtual EGLint getHeight() const { return buffer->height; } 212 virtual EGLint getHorizontalResolution() const; 213 virtual EGLint getVerticalResolution() const; 214 virtual EGLint getRefreshRate() const; 215 virtual EGLint getSwapBehavior() const; 216 217private: 218 status_t lock(android_native_buffer_t* buf, int usage, void** vaddr); 219 status_t unlock(android_native_buffer_t* buf); 220 android_native_window_t* nativeWindow; 221 android_native_buffer_t* buffer; 222 gralloc_module_t const* module; 223 int width; 224 int height; 225 void* bits; 226}; 227 228egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 229 EGLConfig config, 230 int32_t depthFormat, 231 android_native_window_t* window) 232 : egl_surface_t(dpy, config, depthFormat), 233 nativeWindow(window), buffer(0), module(0), bits(NULL) 234{ 235 hw_module_t const* pModule; 236 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 237 module = reinterpret_cast<gralloc_module_t const*>(pModule); 238 239 nativeWindow->common.incRef(&nativeWindow->common); 240 241 nativeWindow->dequeueBuffer(nativeWindow, &buffer); 242 243 width = buffer->width; 244 height = buffer->height; 245 if (depthFormat) { 246 depth.width = width; 247 depth.height = height; 248 depth.stride = depth.width; // use the width here 249 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 250 if (depth.data == 0) { 251 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 252 return; 253 } 254 } 255 256 buffer->common.incRef(&buffer->common); 257} 258 259void egl_window_surface_v2_t::connect() 260{ 261 // Lock the buffer 262 nativeWindow->lockBuffer(nativeWindow, buffer); 263 lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN, &bits); 264} 265 266void egl_window_surface_v2_t::disconnect() 267{ 268 if (buffer) { 269 bits = NULL; 270 unlock(buffer); 271 } 272} 273 274status_t egl_window_surface_v2_t::lock( 275 android_native_buffer_t* buf, int usage, void** vaddr) 276{ 277 int err = module->lock(module, buf->handle, 278 usage, 0, 0, buf->width, buf->height, vaddr); 279 return err; 280} 281 282status_t egl_window_surface_v2_t::unlock(android_native_buffer_t* buf) 283{ 284 int err = module->unlock(module, buf->handle); 285 return err; 286} 287 288 289egl_window_surface_v2_t::~egl_window_surface_v2_t() { 290 if (buffer) { 291 buffer->common.decRef(&buffer->common); 292 } 293 nativeWindow->common.decRef(&nativeWindow->common); 294} 295 296EGLBoolean egl_window_surface_v2_t::swapBuffers() 297{ 298 // TODO: this is roughly the code needed for preserving the back buffer 299 // efficiently. dirty is the area that has been modified. 300 //Region newDirty(dirty); 301 //newDirty.andSelf(Rect(nativeWindow->width, nativeWindow->height)); 302 //mDirty = newDirty; 303 //const Region copyback(mDirty.subtract(newDirty)); 304 //mDisplaySurface->copyFrontToBack(copyback); 305 306 307 unlock(buffer); 308 nativeWindow->queueBuffer(nativeWindow, buffer); 309 buffer->common.decRef(&buffer->common); buffer = 0; 310 311 nativeWindow->dequeueBuffer(nativeWindow, &buffer); 312 buffer->common.incRef(&buffer->common); 313 314 // TODO: lockBuffer should rather be executed when the very first 315 // direct rendering occurs. 316 void* vaddr; 317 nativeWindow->lockBuffer(nativeWindow, buffer); 318 lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN, &bits); 319 320 if ((width != buffer->width) || (height != buffer->height)) { 321 // TODO: we probably should reset the swap rect here 322 // if the window size has changed 323 width = buffer->width; 324 height = buffer->height; 325 if (depth.data) { 326 free(depth.data); 327 depth.width = width; 328 depth.height = height; 329 depth.stride = buffer->stride; 330 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 331 if (depth.data == 0) { 332 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 333 return EGL_FALSE; 334 } 335 } 336 } 337 return EGL_TRUE; 338} 339 340#ifdef LIBAGL_USE_GRALLOC_COPYBITS 341 342static bool supportedCopybitsDestinationFormat(int format) { 343 // Hardware supported and no destination alpha 344 switch (format) { 345 case HAL_PIXEL_FORMAT_RGB_565: 346 case HAL_PIXEL_FORMAT_YCbCr_422_SP: 347 case HAL_PIXEL_FORMAT_YCbCr_420_SP: 348 return true; 349 default: 350 return false; 351 } 352} 353#endif 354 355EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 356{ 357 GGLSurface buffer; 358 buffer.version = sizeof(GGLSurface); 359 buffer.width = this->buffer->width; 360 buffer.height = this->buffer->height; 361 buffer.stride = this->buffer->stride; 362 buffer.data = (GGLubyte*)bits; 363 buffer.format = this->buffer->format; 364 gl->rasterizer.procs.colorBuffer(gl, &buffer); 365 if (depth.data != gl->rasterizer.state.buffers.depth.data) 366 gl->rasterizer.procs.depthBuffer(gl, &depth); 367#ifdef LIBAGL_USE_GRALLOC_COPYBITS 368 gl->copybits.drawSurfaceFd = -1; 369 if (supportedCopybitsDestinationFormat(buffer.format)) { 370 buffer_handle_t handle = this->buffer->handle; 371 if (handle != NULL) { 372 private_handle_t* hand = private_handle_t::dynamicCast(handle); 373 if (hand != NULL) { 374 if (hand->usesPhysicallyContiguousMemory()) { 375 gl->copybits.drawSurfaceFd = hand->fd; 376 } 377 } 378 } 379 } 380#endif // LIBAGL_USE_GRALLOC_COPYBITS 381 return EGL_TRUE; 382} 383EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 384{ 385 GGLSurface buffer; 386 buffer.version = sizeof(GGLSurface); 387 buffer.width = this->buffer->width; 388 buffer.height = this->buffer->height; 389 buffer.stride = this->buffer->stride; 390 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 391 buffer.format = this->buffer->format; 392 gl->rasterizer.procs.readBuffer(gl, &buffer); 393 return EGL_TRUE; 394} 395EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 396 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 397} 398EGLint egl_window_surface_v2_t::getVerticalResolution() const { 399 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 400} 401EGLint egl_window_surface_v2_t::getRefreshRate() const { 402 return (60 * EGL_DISPLAY_SCALING); // FIXME 403} 404EGLint egl_window_surface_v2_t::getSwapBehavior() const { 405 //uint32_t flags = nativeWindow->flags; 406 //if (flags & SURFACE_FLAG_PRESERVE_CONTENT) 407 // return EGL_BUFFER_PRESERVED; 408 // This is now a feature of EGL, currently we don't preserve 409 // the content of the buffers. 410 return EGL_BUFFER_DESTROYED; 411} 412 413// ---------------------------------------------------------------------------- 414 415struct egl_pixmap_surface_t : public egl_surface_t 416{ 417 egl_pixmap_surface_t( 418 EGLDisplay dpy, EGLConfig config, 419 int32_t depthFormat, 420 egl_native_pixmap_t const * pixmap); 421 422 virtual ~egl_pixmap_surface_t() { } 423 424 virtual bool isValid() const { return nativePixmap.version == sizeof(egl_native_pixmap_t); } 425 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 426 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 427 virtual EGLint getWidth() const { return nativePixmap.width; } 428 virtual EGLint getHeight() const { return nativePixmap.height; } 429private: 430 egl_native_pixmap_t nativePixmap; 431}; 432 433egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 434 EGLConfig config, 435 int32_t depthFormat, 436 egl_native_pixmap_t const * pixmap) 437 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 438{ 439 if (depthFormat) { 440 depth.width = pixmap->width; 441 depth.height = pixmap->height; 442 depth.stride = depth.width; // use the width here 443 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 444 if (depth.data == 0) { 445 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 446 return; 447 } 448 } 449} 450EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 451{ 452 GGLSurface buffer; 453 buffer.version = sizeof(GGLSurface); 454 buffer.width = nativePixmap.width; 455 buffer.height = nativePixmap.height; 456 buffer.stride = nativePixmap.stride; 457 buffer.data = nativePixmap.data; 458 buffer.format = nativePixmap.format; 459 460 gl->rasterizer.procs.colorBuffer(gl, &buffer); 461 if (depth.data != gl->rasterizer.state.buffers.depth.data) 462 gl->rasterizer.procs.depthBuffer(gl, &depth); 463 return EGL_TRUE; 464} 465EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 466{ 467 GGLSurface buffer; 468 buffer.version = sizeof(GGLSurface); 469 buffer.width = nativePixmap.width; 470 buffer.height = nativePixmap.height; 471 buffer.stride = nativePixmap.stride; 472 buffer.data = nativePixmap.data; 473 buffer.format = nativePixmap.format; 474 gl->rasterizer.procs.readBuffer(gl, &buffer); 475 return EGL_TRUE; 476} 477 478// ---------------------------------------------------------------------------- 479 480struct egl_pbuffer_surface_t : public egl_surface_t 481{ 482 egl_pbuffer_surface_t( 483 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 484 int32_t w, int32_t h, int32_t f); 485 486 virtual ~egl_pbuffer_surface_t(); 487 488 virtual bool isValid() const { return pbuffer.data != 0; } 489 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 490 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 491 virtual EGLint getWidth() const { return pbuffer.width; } 492 virtual EGLint getHeight() const { return pbuffer.height; } 493private: 494 GGLSurface pbuffer; 495}; 496 497egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 498 EGLConfig config, int32_t depthFormat, 499 int32_t w, int32_t h, int32_t f) 500 : egl_surface_t(dpy, config, depthFormat) 501{ 502 size_t size = w*h; 503 switch (f) { 504 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 505 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 506 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 507 default: 508 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 509 pbuffer.data = 0; 510 break; 511 } 512 pbuffer.version = sizeof(GGLSurface); 513 pbuffer.width = w; 514 pbuffer.height = h; 515 pbuffer.stride = w; 516 pbuffer.data = (GGLubyte*)malloc(size); 517 pbuffer.format = f; 518 519 if (depthFormat) { 520 depth.width = pbuffer.width; 521 depth.height = pbuffer.height; 522 depth.stride = depth.width; // use the width here 523 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 524 if (depth.data == 0) { 525 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 526 return; 527 } 528 } 529} 530egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 531 free(pbuffer.data); 532} 533EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 534{ 535 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 536 if (depth.data != gl->rasterizer.state.buffers.depth.data) 537 gl->rasterizer.procs.depthBuffer(gl, &depth); 538 return EGL_TRUE; 539} 540EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 541{ 542 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 543 return EGL_TRUE; 544} 545 546// ---------------------------------------------------------------------------- 547 548struct config_pair_t { 549 GLint key; 550 GLint value; 551}; 552 553struct configs_t { 554 const config_pair_t* array; 555 int size; 556}; 557 558struct config_management_t { 559 GLint key; 560 bool (*match)(GLint reqValue, GLint confValue); 561 static bool atLeast(GLint reqValue, GLint confValue) { 562 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 563 } 564 static bool exact(GLint reqValue, GLint confValue) { 565 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 566 } 567 static bool mask(GLint reqValue, GLint confValue) { 568 return (confValue & reqValue) == reqValue; 569 } 570}; 571 572// ---------------------------------------------------------------------------- 573 574#define VERSION_MAJOR 1 575#define VERSION_MINOR 2 576static char const * const gVendorString = "Google Inc."; 577static char const * const gVersionString = "1.2 Android Driver"; 578static char const * const gClientApiString = "OpenGL ES"; 579static char const * const gExtensionsString = 580 "KHR_image_base " 581 // "KHR_image_pixmap " 582 "EGL_ANDROID_image_native_buffer " 583 ; 584 585// ---------------------------------------------------------------------------- 586 587struct extention_map_t { 588 const char * const name; 589 __eglMustCastToProperFunctionPointerType address; 590}; 591 592static const extention_map_t gExtentionMap[] = { 593 { "glDrawTexsOES", 594 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 595 { "glDrawTexiOES", 596 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 597 { "glDrawTexfOES", 598 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 599 { "glDrawTexxOES", 600 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 601 { "glDrawTexsvOES", 602 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 603 { "glDrawTexivOES", 604 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 605 { "glDrawTexfvOES", 606 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 607 { "glDrawTexxvOES", 608 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 609 { "glQueryMatrixxOES", 610 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 611 { "glEGLImageTargetTexture2DOES", 612 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 613 { "glEGLImageTargetRenderbufferStorageOES", 614 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 615 { "glClipPlanef", 616 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 617 { "glClipPlanex", 618 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 619 { "glBindBuffer", 620 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 621 { "glBufferData", 622 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 623 { "glBufferSubData", 624 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 625 { "glDeleteBuffers", 626 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 627 { "glGenBuffers", 628 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 629}; 630 631/* 632 * In the lists below, attributes names MUST be sorted. 633 * Additionally, all configs must be sorted according to 634 * the EGL specification. 635 */ 636 637static config_pair_t const config_base_attribute_list[] = { 638 { EGL_STENCIL_SIZE, 0 }, 639 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 640 { EGL_LEVEL, 0 }, 641 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 642 { EGL_MAX_PBUFFER_PIXELS, 643 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 644 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 645 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 646 { EGL_NATIVE_VISUAL_ID, 0 }, 647 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 648 { EGL_SAMPLES, 0 }, 649 { EGL_SAMPLE_BUFFERS, 0 }, 650 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 651 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 652 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 653 { EGL_TRANSPARENT_RED_VALUE, 0 }, 654 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 655 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 656 { EGL_MIN_SWAP_INTERVAL, 1 }, 657 { EGL_MAX_SWAP_INTERVAL, 4 }, 658}; 659 660// These configs can override the base attribute list 661// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 662 663static config_pair_t const config_0_attribute_list[] = { 664 { EGL_BUFFER_SIZE, 16 }, 665 { EGL_ALPHA_SIZE, 0 }, 666 { EGL_BLUE_SIZE, 5 }, 667 { EGL_GREEN_SIZE, 6 }, 668 { EGL_RED_SIZE, 5 }, 669 { EGL_DEPTH_SIZE, 0 }, 670 { EGL_CONFIG_ID, 0 }, 671 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 672}; 673 674static config_pair_t const config_1_attribute_list[] = { 675 { EGL_BUFFER_SIZE, 16 }, 676 { EGL_ALPHA_SIZE, 0 }, 677 { EGL_BLUE_SIZE, 5 }, 678 { EGL_GREEN_SIZE, 6 }, 679 { EGL_RED_SIZE, 5 }, 680 { EGL_DEPTH_SIZE, 16 }, 681 { EGL_CONFIG_ID, 1 }, 682 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 683}; 684 685static config_pair_t const config_2_attribute_list[] = { 686 { EGL_BUFFER_SIZE, 32 }, 687 { EGL_ALPHA_SIZE, 8 }, 688 { EGL_BLUE_SIZE, 8 }, 689 { EGL_GREEN_SIZE, 8 }, 690 { EGL_RED_SIZE, 8 }, 691 { EGL_DEPTH_SIZE, 0 }, 692 { EGL_CONFIG_ID, 2 }, 693 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 694}; 695 696static config_pair_t const config_3_attribute_list[] = { 697 { EGL_BUFFER_SIZE, 32 }, 698 { EGL_ALPHA_SIZE, 8 }, 699 { EGL_BLUE_SIZE, 8 }, 700 { EGL_GREEN_SIZE, 8 }, 701 { EGL_RED_SIZE, 8 }, 702 { EGL_DEPTH_SIZE, 16 }, 703 { EGL_CONFIG_ID, 3 }, 704 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 705}; 706 707static config_pair_t const config_4_attribute_list[] = { 708 { EGL_BUFFER_SIZE, 8 }, 709 { EGL_ALPHA_SIZE, 8 }, 710 { EGL_BLUE_SIZE, 0 }, 711 { EGL_GREEN_SIZE, 0 }, 712 { EGL_RED_SIZE, 0 }, 713 { EGL_DEPTH_SIZE, 0 }, 714 { EGL_CONFIG_ID, 4 }, 715 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 716}; 717 718static config_pair_t const config_5_attribute_list[] = { 719 { EGL_BUFFER_SIZE, 8 }, 720 { EGL_ALPHA_SIZE, 8 }, 721 { EGL_BLUE_SIZE, 0 }, 722 { EGL_GREEN_SIZE, 0 }, 723 { EGL_RED_SIZE, 0 }, 724 { EGL_DEPTH_SIZE, 16 }, 725 { EGL_CONFIG_ID, 5 }, 726 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 727}; 728 729static configs_t const gConfigs[] = { 730 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 731 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 732 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 733 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 734 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 735 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 736}; 737 738static config_management_t const gConfigManagement[] = { 739 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 740 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 741 { EGL_BLUE_SIZE, config_management_t::atLeast }, 742 { EGL_GREEN_SIZE, config_management_t::atLeast }, 743 { EGL_RED_SIZE, config_management_t::atLeast }, 744 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 745 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 746 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 747 { EGL_CONFIG_ID, config_management_t::exact }, 748 { EGL_LEVEL, config_management_t::exact }, 749 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::exact }, 750 { EGL_MAX_PBUFFER_PIXELS, config_management_t::exact }, 751 { EGL_MAX_PBUFFER_WIDTH, config_management_t::exact }, 752 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 753 { EGL_NATIVE_VISUAL_ID, config_management_t::exact }, 754 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 755 { EGL_SAMPLES, config_management_t::exact }, 756 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 757 { EGL_SURFACE_TYPE, config_management_t::mask }, 758 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 759 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 760 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 761 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 762 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 763 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 764 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 765 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 766}; 767 768static config_pair_t const config_defaults[] = { 769 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 770}; 771 772// ---------------------------------------------------------------------------- 773 774template<typename T> 775static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 776{ 777 while (first <= last) { 778 int mid = (first + last) / 2; 779 if (key > sortedArray[mid].key) { 780 first = mid + 1; 781 } else if (key < sortedArray[mid].key) { 782 last = mid - 1; 783 } else { 784 return mid; 785 } 786 } 787 return -1; 788} 789 790static int isAttributeMatching(int i, EGLint attr, EGLint val) 791{ 792 // look for the attribute in all of our configs 793 config_pair_t const* configFound = gConfigs[i].array; 794 int index = binarySearch<config_pair_t>( 795 gConfigs[i].array, 796 0, gConfigs[i].size-1, 797 attr); 798 if (index < 0) { 799 configFound = config_base_attribute_list; 800 index = binarySearch<config_pair_t>( 801 config_base_attribute_list, 802 0, NELEM(config_base_attribute_list)-1, 803 attr); 804 } 805 if (index >= 0) { 806 // attribute found, check if this config could match 807 int cfgMgtIndex = binarySearch<config_management_t>( 808 gConfigManagement, 809 0, NELEM(gConfigManagement)-1, 810 attr); 811 if (index >= 0) { 812 bool match = gConfigManagement[cfgMgtIndex].match( 813 val, configFound[index].value); 814 if (match) { 815 // this config matches 816 return 1; 817 } 818 } else { 819 // attribute not found. this should NEVER happen. 820 } 821 } else { 822 // error, this attribute doesn't exist 823 } 824 return 0; 825} 826 827static int makeCurrent(ogles_context_t* gl) 828{ 829 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 830 if (gl) { 831 egl_context_t* c = egl_context_t::context(gl); 832 if (c->flags & egl_context_t::IS_CURRENT) { 833 if (current != gl) { 834 // it is an error to set a context current, if it's already 835 // current to another thread 836 return -1; 837 } 838 } else { 839 if (current) { 840 // mark the current context as not current, and flush 841 glFlush(); 842 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 843 } 844 } 845 if (!(c->flags & egl_context_t::IS_CURRENT)) { 846 // The context is not current, make it current! 847 setGlThreadSpecific(gl); 848 c->flags |= egl_context_t::IS_CURRENT; 849 } 850 } else { 851 if (current) { 852 // mark the current context as not current, and flush 853 glFlush(); 854 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 855 } 856 // this thread has no context attached to it 857 setGlThreadSpecific(0); 858 } 859 return 0; 860} 861 862static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 863 EGLint attribute, EGLint *value) 864{ 865 size_t numConfigs = NELEM(gConfigs); 866 int index = (int)config; 867 if (uint32_t(index) >= numConfigs) 868 return setError(EGL_BAD_CONFIG, EGL_FALSE); 869 870 int attrIndex; 871 attrIndex = binarySearch<config_pair_t>( 872 gConfigs[index].array, 873 0, gConfigs[index].size-1, 874 attribute); 875 if (attrIndex>=0) { 876 *value = gConfigs[index].array[attrIndex].value; 877 return EGL_TRUE; 878 } 879 880 attrIndex = binarySearch<config_pair_t>( 881 config_base_attribute_list, 882 0, NELEM(config_base_attribute_list)-1, 883 attribute); 884 if (attrIndex>=0) { 885 *value = config_base_attribute_list[attrIndex].value; 886 return EGL_TRUE; 887 } 888 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 889} 890 891static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 892 NativeWindowType window, const EGLint *attrib_list) 893{ 894 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 895 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 896 if (window == 0) 897 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 898 899 EGLint surfaceType; 900 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 901 return EGL_FALSE; 902 903 if (!(surfaceType & EGL_WINDOW_BIT)) 904 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 905 906 EGLint configID; 907 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 908 return EGL_FALSE; 909 910 int32_t depthFormat; 911 int32_t pixelFormat; 912 switch(configID) { 913 case 0: 914 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 915 depthFormat = 0; 916 break; 917 case 1: 918 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 919 depthFormat = GGL_PIXEL_FORMAT_Z_16; 920 break; 921 case 2: 922 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 923 depthFormat = 0; 924 break; 925 case 3: 926 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 927 depthFormat = GGL_PIXEL_FORMAT_Z_16; 928 break; 929 case 4: 930 pixelFormat = GGL_PIXEL_FORMAT_A_8; 931 depthFormat = 0; 932 break; 933 case 5: 934 pixelFormat = GGL_PIXEL_FORMAT_A_8; 935 depthFormat = GGL_PIXEL_FORMAT_Z_16; 936 break; 937 default: 938 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 939 } 940 941 // FIXME: we don't have access to the pixelFormat here just yet. 942 // (it's possible that the surface is not fully initialized) 943 // maybe this should be done after the page-flip 944 //if (EGLint(info.format) != pixelFormat) 945 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 946 947 egl_surface_t* surface; 948 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 949 static_cast<android_native_window_t*>(window)); 950 951 if (!surface->isValid()) { 952 // there was a problem in the ctor, the error 953 // flag has been set. 954 delete surface; 955 surface = 0; 956 } 957 return surface; 958} 959 960static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 961 NativePixmapType pixmap, const EGLint *attrib_list) 962{ 963 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 964 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 965 if (pixmap == 0) 966 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 967 968 EGLint surfaceType; 969 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 970 return EGL_FALSE; 971 972 if (!(surfaceType & EGL_PIXMAP_BIT)) 973 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 974 975 EGLint configID; 976 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 977 return EGL_FALSE; 978 979 int32_t depthFormat; 980 int32_t pixelFormat; 981 switch(configID) { 982 case 0: 983 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 984 depthFormat = 0; 985 break; 986 case 1: 987 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 988 depthFormat = GGL_PIXEL_FORMAT_Z_16; 989 break; 990 case 2: 991 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 992 depthFormat = 0; 993 break; 994 case 3: 995 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 996 depthFormat = GGL_PIXEL_FORMAT_Z_16; 997 break; 998 case 4: 999 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1000 depthFormat = 0; 1001 break; 1002 case 5: 1003 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1004 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1005 break; 1006 default: 1007 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1008 } 1009 1010 if (pixmap->format != pixelFormat) 1011 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1012 1013 egl_surface_t* surface = 1014 new egl_pixmap_surface_t(dpy, config, depthFormat, 1015 static_cast<egl_native_pixmap_t*>(pixmap)); 1016 1017 if (!surface->isValid()) { 1018 // there was a problem in the ctor, the error 1019 // flag has been set. 1020 delete surface; 1021 surface = 0; 1022 } 1023 return surface; 1024} 1025 1026static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1027 const EGLint *attrib_list) 1028{ 1029 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1030 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1031 1032 EGLint surfaceType; 1033 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1034 return EGL_FALSE; 1035 1036 if (!(surfaceType & EGL_PBUFFER_BIT)) 1037 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1038 1039 EGLint configID; 1040 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1041 return EGL_FALSE; 1042 1043 int32_t depthFormat; 1044 int32_t pixelFormat; 1045 switch(configID) { 1046 case 0: 1047 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1048 depthFormat = 0; 1049 break; 1050 case 1: 1051 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1052 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1053 break; 1054 case 2: 1055 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1056 depthFormat = 0; 1057 break; 1058 case 3: 1059 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1060 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1061 break; 1062 case 4: 1063 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1064 depthFormat = 0; 1065 break; 1066 case 5: 1067 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1068 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1069 break; 1070 default: 1071 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1072 } 1073 1074 int32_t w = 0; 1075 int32_t h = 0; 1076 while (attrib_list[0]) { 1077 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1078 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1079 attrib_list+=2; 1080 } 1081 1082 egl_surface_t* surface = 1083 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1084 1085 if (!surface->isValid()) { 1086 // there was a problem in the ctor, the error 1087 // flag has been set. 1088 delete surface; 1089 surface = 0; 1090 } 1091 return surface; 1092} 1093 1094// ---------------------------------------------------------------------------- 1095}; // namespace android 1096// ---------------------------------------------------------------------------- 1097 1098using namespace android; 1099 1100// ---------------------------------------------------------------------------- 1101// Initialization 1102// ---------------------------------------------------------------------------- 1103 1104EGLDisplay eglGetDisplay(NativeDisplayType display) 1105{ 1106#ifndef HAVE_ANDROID_OS 1107 // this just needs to be done once 1108 if (gGLKey == -1) { 1109 pthread_mutex_lock(&gInitMutex); 1110 if (gGLKey == -1) 1111 pthread_key_create(&gGLKey, NULL); 1112 pthread_mutex_unlock(&gInitMutex); 1113 } 1114#endif 1115 if (display == EGL_DEFAULT_DISPLAY) { 1116 EGLDisplay dpy = (EGLDisplay)1; 1117 egl_display_t& d = egl_display_t::get_display(dpy); 1118 d.type = display; 1119 return dpy; 1120 } 1121 return EGL_NO_DISPLAY; 1122} 1123 1124EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1125{ 1126 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1127 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1128 1129 EGLBoolean res = EGL_TRUE; 1130 egl_display_t& d = egl_display_t::get_display(dpy); 1131 1132 if (android_atomic_inc(&d.initialized) == 0) { 1133 // initialize stuff here if needed 1134 //pthread_mutex_lock(&gInitMutex); 1135 //pthread_mutex_unlock(&gInitMutex); 1136 } 1137 1138 if (res == EGL_TRUE) { 1139 if (major != NULL) *major = VERSION_MAJOR; 1140 if (minor != NULL) *minor = VERSION_MINOR; 1141 } 1142 return res; 1143} 1144 1145EGLBoolean eglTerminate(EGLDisplay dpy) 1146{ 1147 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1148 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1149 1150 EGLBoolean res = EGL_TRUE; 1151 egl_display_t& d = egl_display_t::get_display(dpy); 1152 if (android_atomic_dec(&d.initialized) == 1) { 1153 // TODO: destroy all resources (surfaces, contexts, etc...) 1154 //pthread_mutex_lock(&gInitMutex); 1155 //pthread_mutex_unlock(&gInitMutex); 1156 } 1157 return res; 1158} 1159 1160// ---------------------------------------------------------------------------- 1161// configuration 1162// ---------------------------------------------------------------------------- 1163 1164EGLBoolean eglGetConfigs( EGLDisplay dpy, 1165 EGLConfig *configs, 1166 EGLint config_size, EGLint *num_config) 1167{ 1168 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1169 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1170 1171 GLint numConfigs = NELEM(gConfigs); 1172 if (!configs) { 1173 *num_config = numConfigs; 1174 return EGL_TRUE; 1175 } 1176 GLint i; 1177 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1178 *configs++ = (EGLConfig)i; 1179 } 1180 *num_config = i; 1181 return EGL_TRUE; 1182} 1183 1184EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1185 EGLConfig *configs, EGLint config_size, 1186 EGLint *num_config) 1187{ 1188 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1189 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1190 1191 if (ggl_unlikely(num_config==0)) { 1192 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1193 } 1194 1195 if (ggl_unlikely(attrib_list==0)) { 1196 *num_config = 0; 1197 return EGL_TRUE; 1198 } 1199 1200 int numAttributes = 0; 1201 int numConfigs = NELEM(gConfigs); 1202 uint32_t possibleMatch = (1<<numConfigs)-1; 1203 while(possibleMatch && *attrib_list != EGL_NONE) { 1204 numAttributes++; 1205 EGLint attr = *attrib_list++; 1206 EGLint val = *attrib_list++; 1207 for (int i=0 ; i<numConfigs ; i++) { 1208 if (!(possibleMatch & (1<<i))) 1209 continue; 1210 if (isAttributeMatching(i, attr, val) == 0) { 1211 possibleMatch &= ~(1<<i); 1212 } 1213 } 1214 } 1215 1216 // now, handle the attributes which have a useful default value 1217 for (size_t j=0 ; j<NELEM(config_defaults) ; j++) { 1218 // see if this attribute was specified, if not apply its 1219 // default value 1220 if (binarySearch<config_pair_t>( 1221 (config_pair_t const*)attrib_list, 1222 0, numAttributes, 1223 config_defaults[j].key) < 0) 1224 { 1225 for (int i=0 ; i<numConfigs ; i++) { 1226 if (!(possibleMatch & (1<<i))) 1227 continue; 1228 if (isAttributeMatching(i, 1229 config_defaults[j].key, 1230 config_defaults[j].value) == 0) 1231 { 1232 possibleMatch &= ~(1<<i); 1233 } 1234 } 1235 } 1236 } 1237 1238 // return the configurations found 1239 int n=0; 1240 if (possibleMatch) { 1241 if (configs) { 1242 for (int i=0 ; config_size && i<numConfigs ; i++) { 1243 if (possibleMatch & (1<<i)) { 1244 *configs++ = (EGLConfig)i; 1245 config_size--; 1246 n++; 1247 } 1248 } 1249 } else { 1250 for (int i=0 ; i<numConfigs ; i++) { 1251 if (possibleMatch & (1<<i)) { 1252 n++; 1253 } 1254 } 1255 } 1256 } 1257 *num_config = n; 1258 return EGL_TRUE; 1259} 1260 1261EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1262 EGLint attribute, EGLint *value) 1263{ 1264 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1265 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1266 1267 return getConfigAttrib(dpy, config, attribute, value); 1268} 1269 1270// ---------------------------------------------------------------------------- 1271// surfaces 1272// ---------------------------------------------------------------------------- 1273 1274EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1275 NativeWindowType window, 1276 const EGLint *attrib_list) 1277{ 1278 return createWindowSurface(dpy, config, window, attrib_list); 1279} 1280 1281EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1282 NativePixmapType pixmap, 1283 const EGLint *attrib_list) 1284{ 1285 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1286} 1287 1288EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1289 const EGLint *attrib_list) 1290{ 1291 return createPbufferSurface(dpy, config, attrib_list); 1292} 1293 1294EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1295{ 1296 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1297 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1298 if (eglSurface != EGL_NO_SURFACE) { 1299 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1300 if (surface->magic != egl_surface_t::MAGIC) 1301 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1302 if (surface->dpy != dpy) 1303 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1304 if (surface->ctx) { 1305 // FIXME: this surface is current check what the spec says 1306 surface->disconnect(); 1307 surface->ctx = 0; 1308 } 1309 delete surface; 1310 } 1311 return EGL_TRUE; 1312} 1313 1314EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1315 EGLint attribute, EGLint *value) 1316{ 1317 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1318 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1319 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1320 if (surface->dpy != dpy) 1321 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1322 1323 EGLBoolean ret = EGL_TRUE; 1324 switch (attribute) { 1325 case EGL_CONFIG_ID: 1326 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1327 break; 1328 case EGL_WIDTH: 1329 *value = surface->getWidth(); 1330 break; 1331 case EGL_HEIGHT: 1332 *value = surface->getHeight(); 1333 break; 1334 case EGL_LARGEST_PBUFFER: 1335 // not modified for a window or pixmap surface 1336 break; 1337 case EGL_TEXTURE_FORMAT: 1338 *value = EGL_NO_TEXTURE; 1339 break; 1340 case EGL_TEXTURE_TARGET: 1341 *value = EGL_NO_TEXTURE; 1342 break; 1343 case EGL_MIPMAP_TEXTURE: 1344 *value = EGL_FALSE; 1345 break; 1346 case EGL_MIPMAP_LEVEL: 1347 *value = 0; 1348 break; 1349 case EGL_RENDER_BUFFER: 1350 // TODO: return the real RENDER_BUFFER here 1351 *value = EGL_BACK_BUFFER; 1352 break; 1353 case EGL_HORIZONTAL_RESOLUTION: 1354 // pixel/mm * EGL_DISPLAY_SCALING 1355 *value = surface->getHorizontalResolution(); 1356 break; 1357 case EGL_VERTICAL_RESOLUTION: 1358 // pixel/mm * EGL_DISPLAY_SCALING 1359 *value = surface->getVerticalResolution(); 1360 break; 1361 case EGL_PIXEL_ASPECT_RATIO: { 1362 // w/h * EGL_DISPLAY_SCALING 1363 int wr = surface->getHorizontalResolution(); 1364 int hr = surface->getVerticalResolution(); 1365 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1366 } break; 1367 case EGL_SWAP_BEHAVIOR: 1368 *value = surface->getSwapBehavior(); 1369 break; 1370 default: 1371 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1372 } 1373 return ret; 1374} 1375 1376EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1377 EGLContext share_list, const EGLint *attrib_list) 1378{ 1379 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1380 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1381 1382 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1383 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1384 1385 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1386 c->flags = egl_context_t::NEVER_CURRENT; 1387 c->dpy = dpy; 1388 c->config = config; 1389 c->read = 0; 1390 c->draw = 0; 1391 return (EGLContext)gl; 1392} 1393 1394EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1395{ 1396 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1397 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1398 egl_context_t* c = egl_context_t::context(ctx); 1399 if (c->flags & egl_context_t::IS_CURRENT) 1400 setGlThreadSpecific(0); 1401 ogles_uninit((ogles_context_t*)ctx); 1402 return EGL_TRUE; 1403} 1404 1405EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1406 EGLSurface read, EGLContext ctx) 1407{ 1408 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1409 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1410 if (draw) { 1411 egl_surface_t* s = (egl_surface_t*)draw; 1412 if (s->dpy != dpy) 1413 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1414 // TODO: check that draw and read are compatible with the context 1415 } 1416 1417 EGLContext current_ctx = EGL_NO_CONTEXT; 1418 1419 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1420 return setError(EGL_BAD_MATCH, EGL_FALSE); 1421 1422 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1423 return setError(EGL_BAD_MATCH, EGL_FALSE); 1424 1425 if (ctx == EGL_NO_CONTEXT) { 1426 // if we're detaching, we need the current context 1427 current_ctx = (EGLContext)getGlThreadSpecific(); 1428 } else { 1429 egl_context_t* c = egl_context_t::context(ctx); 1430 egl_surface_t* d = (egl_surface_t*)draw; 1431 egl_surface_t* r = (egl_surface_t*)read; 1432 if ((d && d->ctx && d->ctx != ctx) || 1433 (r && r->ctx && r->ctx != ctx)) { 1434 // one of the surface is bound to a context in another thread 1435 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1436 } 1437 } 1438 1439 ogles_context_t* gl = (ogles_context_t*)ctx; 1440 if (makeCurrent(gl) == 0) { 1441 if (ctx) { 1442 egl_context_t* c = egl_context_t::context(ctx); 1443 egl_surface_t* d = (egl_surface_t*)draw; 1444 egl_surface_t* r = (egl_surface_t*)read; 1445 1446 if (c->draw) { 1447 reinterpret_cast<egl_surface_t*>(c->draw)->disconnect(); 1448 } 1449 if (c->read) { 1450 // FIXME: unlock/disconnect the read surface too 1451 } 1452 1453 c->draw = draw; 1454 c->read = read; 1455 1456 if (c->flags & egl_context_t::NEVER_CURRENT) { 1457 c->flags &= ~egl_context_t::NEVER_CURRENT; 1458 GLint w = 0; 1459 GLint h = 0; 1460 if (draw) { 1461 w = d->getWidth(); 1462 h = d->getHeight(); 1463 } 1464 ogles_surfaceport(gl, 0, 0); 1465 ogles_viewport(gl, 0, 0, w, h); 1466 ogles_scissor(gl, 0, 0, w, h); 1467 } 1468 if (d) { 1469 d->connect(); 1470 d->ctx = ctx; 1471 d->bindDrawSurface(gl); 1472 } 1473 if (r) { 1474 // FIXME: lock/connect the read surface too 1475 r->ctx = ctx; 1476 r->bindReadSurface(gl); 1477 } 1478 } else { 1479 // if surfaces were bound to the context bound to this thread 1480 // mark then as unbound. 1481 if (current_ctx) { 1482 egl_context_t* c = egl_context_t::context(current_ctx); 1483 egl_surface_t* d = (egl_surface_t*)c->draw; 1484 egl_surface_t* r = (egl_surface_t*)c->read; 1485 if (d) { 1486 d->ctx = EGL_NO_CONTEXT; 1487 d->disconnect(); 1488 } 1489 if (r) { 1490 r->ctx = EGL_NO_CONTEXT; 1491 // FIXME: unlock/disconnect the read surface too 1492 } 1493 } 1494 } 1495 return EGL_TRUE; 1496 } 1497 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1498} 1499 1500EGLContext eglGetCurrentContext(void) 1501{ 1502 // eglGetCurrentContext returns the current EGL rendering context, 1503 // as specified by eglMakeCurrent. If no context is current, 1504 // EGL_NO_CONTEXT is returned. 1505 return (EGLContext)getGlThreadSpecific(); 1506} 1507 1508EGLSurface eglGetCurrentSurface(EGLint readdraw) 1509{ 1510 // eglGetCurrentSurface returns the read or draw surface attached 1511 // to the current EGL rendering context, as specified by eglMakeCurrent. 1512 // If no context is current, EGL_NO_SURFACE is returned. 1513 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1514 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1515 egl_context_t* c = egl_context_t::context(ctx); 1516 if (readdraw == EGL_READ) { 1517 return c->read; 1518 } else if (readdraw == EGL_DRAW) { 1519 return c->draw; 1520 } 1521 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1522} 1523 1524EGLDisplay eglGetCurrentDisplay(void) 1525{ 1526 // eglGetCurrentDisplay returns the current EGL display connection 1527 // for the current EGL rendering context, as specified by eglMakeCurrent. 1528 // If no context is current, EGL_NO_DISPLAY is returned. 1529 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1530 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1531 egl_context_t* c = egl_context_t::context(ctx); 1532 return c->dpy; 1533} 1534 1535EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1536 EGLint attribute, EGLint *value) 1537{ 1538 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1539 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1540 egl_context_t* c = egl_context_t::context(ctx); 1541 switch (attribute) { 1542 case EGL_CONFIG_ID: 1543 // Returns the ID of the EGL frame buffer configuration with 1544 // respect to which the context was created 1545 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1546 } 1547 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1548} 1549 1550EGLBoolean eglWaitGL(void) 1551{ 1552 return EGL_TRUE; 1553} 1554 1555EGLBoolean eglWaitNative(EGLint engine) 1556{ 1557 return EGL_TRUE; 1558} 1559 1560EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1561{ 1562 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1563 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1564 1565 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1566 if (d->dpy != dpy) 1567 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1568 1569 // post the surface 1570 d->swapBuffers(); 1571 1572 // if it's bound to a context, update the buffer 1573 if (d->ctx != EGL_NO_CONTEXT) { 1574 d->bindDrawSurface((ogles_context_t*)d->ctx); 1575 // if this surface is also the read surface of the context 1576 // it is bound to, make sure to update the read buffer as well. 1577 // The EGL spec is a little unclear about this. 1578 egl_context_t* c = egl_context_t::context(d->ctx); 1579 if (c->read == draw) { 1580 d->bindReadSurface((ogles_context_t*)d->ctx); 1581 } 1582 } 1583 1584 return EGL_TRUE; 1585} 1586 1587EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1588 NativePixmapType target) 1589{ 1590 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1591 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1592 // TODO: eglCopyBuffers() 1593 return EGL_FALSE; 1594} 1595 1596EGLint eglGetError(void) 1597{ 1598 return getError(); 1599} 1600 1601const char* eglQueryString(EGLDisplay dpy, EGLint name) 1602{ 1603 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1604 return setError(EGL_BAD_DISPLAY, (const char*)0); 1605 1606 switch (name) { 1607 case EGL_VENDOR: 1608 return gVendorString; 1609 case EGL_VERSION: 1610 return gVersionString; 1611 case EGL_EXTENSIONS: 1612 return gExtensionsString; 1613 case EGL_CLIENT_APIS: 1614 return gClientApiString; 1615 } 1616 return setError(EGL_BAD_PARAMETER, (const char *)0); 1617} 1618 1619// ---------------------------------------------------------------------------- 1620// EGL 1.1 1621// ---------------------------------------------------------------------------- 1622 1623EGLBoolean eglSurfaceAttrib( 1624 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1625{ 1626 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1627 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1628 // TODO: eglSurfaceAttrib() 1629 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1630} 1631 1632EGLBoolean eglBindTexImage( 1633 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1634{ 1635 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1636 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1637 // TODO: eglBindTexImage() 1638 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1639} 1640 1641EGLBoolean eglReleaseTexImage( 1642 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1643{ 1644 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1645 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1646 // TODO: eglReleaseTexImage() 1647 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1648} 1649 1650EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1651{ 1652 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1653 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1654 // TODO: eglSwapInterval() 1655 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1656} 1657 1658// ---------------------------------------------------------------------------- 1659// EGL 1.2 1660// ---------------------------------------------------------------------------- 1661 1662EGLBoolean eglBindAPI(EGLenum api) 1663{ 1664 if (api != EGL_OPENGL_ES_API) 1665 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1666 return EGL_TRUE; 1667} 1668 1669EGLenum eglQueryAPI(void) 1670{ 1671 return EGL_OPENGL_ES_API; 1672} 1673 1674EGLBoolean eglWaitClient(void) 1675{ 1676 glFinish(); 1677 return EGL_TRUE; 1678} 1679 1680EGLBoolean eglReleaseThread(void) 1681{ 1682 // TODO: eglReleaseThread() 1683 return EGL_TRUE; 1684} 1685 1686EGLSurface eglCreatePbufferFromClientBuffer( 1687 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 1688 EGLConfig config, const EGLint *attrib_list) 1689{ 1690 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1691 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1692 // TODO: eglCreatePbufferFromClientBuffer() 1693 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 1694} 1695 1696// ---------------------------------------------------------------------------- 1697// EGL_EGLEXT_VERSION 3 1698// ---------------------------------------------------------------------------- 1699 1700void (*eglGetProcAddress (const char *procname))() 1701{ 1702 extention_map_t const * const map = gExtentionMap; 1703 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 1704 if (!strcmp(procname, map[i].name)) { 1705 return map[i].address; 1706 } 1707 } 1708 return NULL; 1709} 1710 1711EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 1712 const EGLint *attrib_list) 1713{ 1714 EGLBoolean result = EGL_FALSE; 1715 return result; 1716} 1717 1718EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 1719{ 1720 EGLBoolean result = EGL_FALSE; 1721 return result; 1722} 1723 1724EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 1725 EGLClientBuffer buffer, const EGLint *attrib_list) 1726{ 1727 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 1728 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 1729 } 1730 if (ctx != EGL_NO_CONTEXT) { 1731 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 1732 } 1733 if (target != EGL_NATIVE_BUFFER_ANDROID) { 1734 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1735 } 1736 1737 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 1738 1739 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 1740 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1741 1742 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 1743 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1744 1745 native_buffer->common.incRef(&native_buffer->common); 1746 return (EGLImageKHR)native_buffer; 1747} 1748 1749EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 1750{ 1751 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 1752 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1753 } 1754 1755 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 1756 1757 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 1758 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1759 1760 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 1761 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1762 1763 native_buffer->common.decRef(&native_buffer->common); 1764 1765 return EGL_TRUE; 1766} 1767