egl.cpp revision 8b765b7f5ea7f56963ea0e3141d043d20944dbcc
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 EGLint getWidth() const = 0; 150 virtual EGLint getHeight() const = 0; 151 virtual void* getBits() const = 0; 152 153 virtual EGLint getHorizontalResolution() const; 154 virtual EGLint getVerticalResolution() const; 155 virtual EGLint getRefreshRate() const; 156 virtual EGLint getSwapBehavior() const; 157 virtual EGLBoolean swapBuffers(); 158protected: 159 GGLSurface depth; 160}; 161 162egl_surface_t::egl_surface_t(EGLDisplay dpy, 163 EGLConfig config, 164 int32_t depthFormat) 165 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 166{ 167 depth.version = sizeof(GGLSurface); 168 depth.data = 0; 169 depth.format = depthFormat; 170} 171egl_surface_t::~egl_surface_t() 172{ 173 magic = 0; 174 free(depth.data); 175} 176EGLBoolean egl_surface_t::swapBuffers() { 177 return EGL_FALSE; 178} 179EGLint egl_surface_t::getHorizontalResolution() const { 180 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 181} 182EGLint egl_surface_t::getVerticalResolution() const { 183 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 184} 185EGLint egl_surface_t::getRefreshRate() const { 186 return (60 * EGL_DISPLAY_SCALING); 187} 188EGLint egl_surface_t::getSwapBehavior() const { 189 return EGL_BUFFER_PRESERVED; 190} 191 192// ---------------------------------------------------------------------------- 193 194struct egl_window_surface_v2_t : public egl_surface_t 195{ 196 egl_window_surface_v2_t( 197 EGLDisplay dpy, EGLConfig config, 198 int32_t depthFormat, 199 android_native_window_t* window); 200 201 ~egl_window_surface_v2_t(); 202 203 virtual bool isValid() const { return nativeWindow->common.magic == ANDROID_NATIVE_WINDOW_MAGIC; } 204 virtual EGLBoolean swapBuffers(); 205 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 206 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 207 virtual EGLint getWidth() const { return buffer->width; } 208 virtual EGLint getHeight() const { return buffer->height; } 209 virtual void* getBits() const; 210 virtual EGLint getHorizontalResolution() const; 211 virtual EGLint getVerticalResolution() const; 212 virtual EGLint getRefreshRate() const; 213 virtual EGLint getSwapBehavior() const; 214private: 215 android_native_window_t* nativeWindow; 216 android_native_buffer_t* buffer; 217 int width; 218 int height; 219}; 220 221egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 222 EGLConfig config, 223 int32_t depthFormat, 224 android_native_window_t* window) 225 : egl_surface_t(dpy, config, depthFormat), nativeWindow(window), buffer(0) 226{ 227 nativeWindow->common.incRef(&nativeWindow->common); 228 229 nativeWindow->dequeueBuffer(nativeWindow, &buffer); 230 231 width = buffer->width; 232 height = buffer->height; 233 if (depthFormat) { 234 depth.width = width; 235 depth.height = height; 236 depth.stride = depth.width; // use the width here 237 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 238 if (depth.data == 0) { 239 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 240 return; 241 } 242 } 243 244 // TODO: lockBuffer should rather be executed when the very first 245 // direct rendering occurs. 246 buffer->common.incRef(&buffer->common); 247 nativeWindow->lockBuffer(nativeWindow, buffer); 248 249 // FIXME: we need to gralloc lock the buffer 250 // FIXME: we need to handle the copy-back if needed, but 251 // for now we're a "non preserving" implementation. 252} 253 254egl_window_surface_v2_t::~egl_window_surface_v2_t() { 255 if (buffer) { 256 buffer->common.decRef(&buffer->common); 257 } 258 nativeWindow->common.decRef(&nativeWindow->common); 259} 260 261EGLBoolean egl_window_surface_v2_t::swapBuffers() 262{ 263 // TODO: this is roughly the code needed for preserving the back buffer 264 // efficiently. dirty is the area that has been modified. 265 //Region newDirty(dirty); 266 //newDirty.andSelf(Rect(nativeWindow->width, nativeWindow->height)); 267 //mDirty = newDirty; 268 //const Region copyback(mDirty.subtract(newDirty)); 269 //mDisplaySurface->copyFrontToBack(copyback); 270 271 272 nativeWindow->queueBuffer(nativeWindow, buffer); 273 buffer->common.decRef(&buffer->common); buffer = 0; 274 275 nativeWindow->dequeueBuffer(nativeWindow, &buffer); 276 buffer->common.incRef(&buffer->common); 277 278 // TODO: lockBuffer should rather be executed when the very first 279 // direct rendering occurs. 280 nativeWindow->lockBuffer(nativeWindow, buffer); 281 282 283 if ((width != buffer->width) || (height != buffer->height)) { 284 // TODO: we probably should reset the swap rect here 285 // if the window size has changed 286 width = buffer->width; 287 height = buffer->height; 288 if (depth.data) { 289 free(depth.data); 290 depth.width = width; 291 depth.height = height; 292 depth.stride = buffer->stride; 293 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 294 if (depth.data == 0) { 295 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 296 return EGL_FALSE; 297 } 298 } 299 } 300 return EGL_TRUE; 301} 302 303#ifdef LIBAGL_USE_GRALLOC_COPYBITS 304 305static bool supportedCopybitsDestinationFormat(int format) { 306 // Hardware supported and no destination alpha 307 switch (format) { 308 case HAL_PIXEL_FORMAT_RGB_565: 309 case HAL_PIXEL_FORMAT_YCbCr_422_SP: 310 case HAL_PIXEL_FORMAT_YCbCr_420_SP: 311 return true; 312 default: 313 return false; 314 } 315} 316#endif 317 318EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 319{ 320 GGLSurface buffer; 321 buffer.version = sizeof(GGLSurface); 322 buffer.width = this->buffer->width; 323 buffer.height = this->buffer->height; 324 buffer.stride = this->buffer->stride; 325 buffer.data = (GGLubyte*)this->buffer->bits; 326 buffer.format = this->buffer->format; 327 gl->rasterizer.procs.colorBuffer(gl, &buffer); 328 if (depth.data != gl->rasterizer.state.buffers.depth.data) 329 gl->rasterizer.procs.depthBuffer(gl, &depth); 330#ifdef LIBAGL_USE_GRALLOC_COPYBITS 331 gl->copybits.drawSurfaceFd = -1; 332 if (supportedCopybitsDestinationFormat(buffer.format)) { 333 buffer_handle_t handle; 334 this->buffer->getHandle(this->buffer, &handle); 335 if (handle != NULL) { 336 private_handle_t* hand = private_handle_t::dynamicCast(handle); 337 if (hand != NULL) { 338 if (hand->usesPhysicallyContiguousMemory()) { 339 gl->copybits.drawSurfaceFd = hand->fd; 340 } 341 } 342 } 343 } 344#endif // LIBAGL_USE_GRALLOC_COPYBITS 345 return EGL_TRUE; 346} 347EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 348{ 349 GGLSurface buffer; 350 buffer.version = sizeof(GGLSurface); 351 buffer.width = this->buffer->width; 352 buffer.height = this->buffer->height; 353 buffer.stride = this->buffer->stride; 354 buffer.data = (GGLubyte*)this->buffer->bits; 355 buffer.format = this->buffer->format; 356 gl->rasterizer.procs.readBuffer(gl, &buffer); 357 return EGL_TRUE; 358} 359void* egl_window_surface_v2_t::getBits() const { 360 return (GGLubyte*)buffer->bits; 361} 362EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 363 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 364} 365EGLint egl_window_surface_v2_t::getVerticalResolution() const { 366 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 367} 368EGLint egl_window_surface_v2_t::getRefreshRate() const { 369 return (60 * EGL_DISPLAY_SCALING); // FIXME 370} 371EGLint egl_window_surface_v2_t::getSwapBehavior() const { 372 //uint32_t flags = nativeWindow->flags; 373 //if (flags & SURFACE_FLAG_PRESERVE_CONTENT) 374 // return EGL_BUFFER_PRESERVED; 375 // This is now a feature of EGL, currently we don't preserve 376 // the content of the buffers. 377 return EGL_BUFFER_DESTROYED; 378} 379 380// ---------------------------------------------------------------------------- 381 382struct egl_pixmap_surface_t : public egl_surface_t 383{ 384 egl_pixmap_surface_t( 385 EGLDisplay dpy, EGLConfig config, 386 int32_t depthFormat, 387 egl_native_pixmap_t const * pixmap); 388 389 virtual ~egl_pixmap_surface_t() { } 390 391 virtual bool isValid() const { return nativePixmap.version == sizeof(egl_native_pixmap_t); } 392 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 393 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 394 virtual EGLint getWidth() const { return nativePixmap.width; } 395 virtual EGLint getHeight() const { return nativePixmap.height; } 396 virtual void* getBits() const { return nativePixmap.data; } 397private: 398 egl_native_pixmap_t nativePixmap; 399}; 400 401egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 402 EGLConfig config, 403 int32_t depthFormat, 404 egl_native_pixmap_t const * pixmap) 405 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 406{ 407 if (depthFormat) { 408 depth.width = pixmap->width; 409 depth.height = pixmap->height; 410 depth.stride = depth.width; // use the width here 411 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 412 if (depth.data == 0) { 413 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 414 return; 415 } 416 } 417} 418EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 419{ 420 GGLSurface buffer; 421 buffer.version = sizeof(GGLSurface); 422 buffer.width = nativePixmap.width; 423 buffer.height = nativePixmap.height; 424 buffer.stride = nativePixmap.stride; 425 buffer.data = nativePixmap.data; 426 buffer.format = nativePixmap.format; 427 428 gl->rasterizer.procs.colorBuffer(gl, &buffer); 429 if (depth.data != gl->rasterizer.state.buffers.depth.data) 430 gl->rasterizer.procs.depthBuffer(gl, &depth); 431 return EGL_TRUE; 432} 433EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 434{ 435 GGLSurface buffer; 436 buffer.version = sizeof(GGLSurface); 437 buffer.width = nativePixmap.width; 438 buffer.height = nativePixmap.height; 439 buffer.stride = nativePixmap.stride; 440 buffer.data = nativePixmap.data; 441 buffer.format = nativePixmap.format; 442 gl->rasterizer.procs.readBuffer(gl, &buffer); 443 return EGL_TRUE; 444} 445 446// ---------------------------------------------------------------------------- 447 448struct egl_pbuffer_surface_t : public egl_surface_t 449{ 450 egl_pbuffer_surface_t( 451 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 452 int32_t w, int32_t h, int32_t f); 453 454 virtual ~egl_pbuffer_surface_t(); 455 456 virtual bool isValid() const { return pbuffer.data != 0; } 457 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 458 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 459 virtual EGLint getWidth() const { return pbuffer.width; } 460 virtual EGLint getHeight() const { return pbuffer.height; } 461 virtual void* getBits() const { return pbuffer.data; } 462private: 463 GGLSurface pbuffer; 464}; 465 466egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 467 EGLConfig config, int32_t depthFormat, 468 int32_t w, int32_t h, int32_t f) 469 : egl_surface_t(dpy, config, depthFormat) 470{ 471 size_t size = w*h; 472 switch (f) { 473 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 474 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 475 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 476 default: 477 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 478 pbuffer.data = 0; 479 break; 480 } 481 pbuffer.version = sizeof(GGLSurface); 482 pbuffer.width = w; 483 pbuffer.height = h; 484 pbuffer.stride = w; 485 pbuffer.data = (GGLubyte*)malloc(size); 486 pbuffer.format = f; 487 488 if (depthFormat) { 489 depth.width = pbuffer.width; 490 depth.height = pbuffer.height; 491 depth.stride = depth.width; // use the width here 492 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 493 if (depth.data == 0) { 494 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 495 return; 496 } 497 } 498} 499egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 500 free(pbuffer.data); 501} 502EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 503{ 504 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 505 if (depth.data != gl->rasterizer.state.buffers.depth.data) 506 gl->rasterizer.procs.depthBuffer(gl, &depth); 507 return EGL_TRUE; 508} 509EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 510{ 511 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 512 return EGL_TRUE; 513} 514 515// ---------------------------------------------------------------------------- 516 517struct config_pair_t { 518 GLint key; 519 GLint value; 520}; 521 522struct configs_t { 523 const config_pair_t* array; 524 int size; 525}; 526 527struct config_management_t { 528 GLint key; 529 bool (*match)(GLint reqValue, GLint confValue); 530 static bool atLeast(GLint reqValue, GLint confValue) { 531 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 532 } 533 static bool exact(GLint reqValue, GLint confValue) { 534 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 535 } 536 static bool mask(GLint reqValue, GLint confValue) { 537 return (confValue & reqValue) == reqValue; 538 } 539}; 540 541// ---------------------------------------------------------------------------- 542 543#define VERSION_MAJOR 1 544#define VERSION_MINOR 2 545static char const * const gVendorString = "Google Inc."; 546static char const * const gVersionString = "1.2 Android Driver"; 547static char const * const gClientApiString = "OpenGL ES"; 548static char const * const gExtensionsString = 549 "KHR_image_base " 550 // "KHR_image_pixmap " 551 "EGL_ANDROID_image_native_buffer " 552 ; 553 554// ---------------------------------------------------------------------------- 555 556struct extention_map_t { 557 const char * const name; 558 __eglMustCastToProperFunctionPointerType address; 559}; 560 561static const extention_map_t gExtentionMap[] = { 562 { "glDrawTexsOES", 563 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 564 { "glDrawTexiOES", 565 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 566 { "glDrawTexfOES", 567 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 568 { "glDrawTexxOES", 569 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 570 { "glDrawTexsvOES", 571 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 572 { "glDrawTexivOES", 573 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 574 { "glDrawTexfvOES", 575 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 576 { "glDrawTexxvOES", 577 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 578 { "glQueryMatrixxOES", 579 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 580 { "glEGLImageTargetTexture2DOES", 581 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 582 { "glEGLImageTargetRenderbufferStorageOES", 583 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 584 { "glClipPlanef", 585 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 586 { "glClipPlanex", 587 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 588 { "glBindBuffer", 589 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 590 { "glBufferData", 591 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 592 { "glBufferSubData", 593 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 594 { "glDeleteBuffers", 595 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 596 { "glGenBuffers", 597 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 598}; 599 600/* 601 * In the lists below, attributes names MUST be sorted. 602 * Additionally, all configs must be sorted according to 603 * the EGL specification. 604 */ 605 606static config_pair_t const config_base_attribute_list[] = { 607 { EGL_STENCIL_SIZE, 0 }, 608 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 609 { EGL_LEVEL, 0 }, 610 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 611 { EGL_MAX_PBUFFER_PIXELS, 612 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 613 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 614 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 615 { EGL_NATIVE_VISUAL_ID, 0 }, 616 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 617 { EGL_SAMPLES, 0 }, 618 { EGL_SAMPLE_BUFFERS, 0 }, 619 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 620 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 621 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 622 { EGL_TRANSPARENT_RED_VALUE, 0 }, 623 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 624 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 625 { EGL_MIN_SWAP_INTERVAL, 1 }, 626 { EGL_MAX_SWAP_INTERVAL, 4 }, 627}; 628 629// These configs can override the base attribute list 630// NOTE: when adding a config here, don't forget to update eglCreate*Surface() 631 632static config_pair_t const config_0_attribute_list[] = { 633 { EGL_BUFFER_SIZE, 16 }, 634 { EGL_ALPHA_SIZE, 0 }, 635 { EGL_BLUE_SIZE, 5 }, 636 { EGL_GREEN_SIZE, 6 }, 637 { EGL_RED_SIZE, 5 }, 638 { EGL_DEPTH_SIZE, 0 }, 639 { EGL_CONFIG_ID, 0 }, 640 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 641}; 642 643static config_pair_t const config_1_attribute_list[] = { 644 { EGL_BUFFER_SIZE, 16 }, 645 { EGL_ALPHA_SIZE, 0 }, 646 { EGL_BLUE_SIZE, 5 }, 647 { EGL_GREEN_SIZE, 6 }, 648 { EGL_RED_SIZE, 5 }, 649 { EGL_DEPTH_SIZE, 16 }, 650 { EGL_CONFIG_ID, 1 }, 651 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 652}; 653 654static config_pair_t const config_2_attribute_list[] = { 655 { EGL_BUFFER_SIZE, 32 }, 656 { EGL_ALPHA_SIZE, 8 }, 657 { EGL_BLUE_SIZE, 8 }, 658 { EGL_GREEN_SIZE, 8 }, 659 { EGL_RED_SIZE, 8 }, 660 { EGL_DEPTH_SIZE, 0 }, 661 { EGL_CONFIG_ID, 2 }, 662 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 663}; 664 665static config_pair_t const config_3_attribute_list[] = { 666 { EGL_BUFFER_SIZE, 32 }, 667 { EGL_ALPHA_SIZE, 8 }, 668 { EGL_BLUE_SIZE, 8 }, 669 { EGL_GREEN_SIZE, 8 }, 670 { EGL_RED_SIZE, 8 }, 671 { EGL_DEPTH_SIZE, 16 }, 672 { EGL_CONFIG_ID, 3 }, 673 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 674}; 675 676static config_pair_t const config_4_attribute_list[] = { 677 { EGL_BUFFER_SIZE, 8 }, 678 { EGL_ALPHA_SIZE, 8 }, 679 { EGL_BLUE_SIZE, 0 }, 680 { EGL_GREEN_SIZE, 0 }, 681 { EGL_RED_SIZE, 0 }, 682 { EGL_DEPTH_SIZE, 0 }, 683 { EGL_CONFIG_ID, 4 }, 684 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 685}; 686 687static config_pair_t const config_5_attribute_list[] = { 688 { EGL_BUFFER_SIZE, 8 }, 689 { EGL_ALPHA_SIZE, 8 }, 690 { EGL_BLUE_SIZE, 0 }, 691 { EGL_GREEN_SIZE, 0 }, 692 { EGL_RED_SIZE, 0 }, 693 { EGL_DEPTH_SIZE, 16 }, 694 { EGL_CONFIG_ID, 5 }, 695 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 696}; 697 698static configs_t const gConfigs[] = { 699 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 700 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 701 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 702 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 703 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 704 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 705}; 706 707static config_management_t const gConfigManagement[] = { 708 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 709 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 710 { EGL_BLUE_SIZE, config_management_t::atLeast }, 711 { EGL_GREEN_SIZE, config_management_t::atLeast }, 712 { EGL_RED_SIZE, config_management_t::atLeast }, 713 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 714 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 715 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 716 { EGL_CONFIG_ID, config_management_t::exact }, 717 { EGL_LEVEL, config_management_t::exact }, 718 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::exact }, 719 { EGL_MAX_PBUFFER_PIXELS, config_management_t::exact }, 720 { EGL_MAX_PBUFFER_WIDTH, config_management_t::exact }, 721 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 722 { EGL_NATIVE_VISUAL_ID, config_management_t::exact }, 723 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 724 { EGL_SAMPLES, config_management_t::exact }, 725 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 726 { EGL_SURFACE_TYPE, config_management_t::mask }, 727 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 728 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 729 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 730 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 731 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 732 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 733 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 734 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 735}; 736 737static config_pair_t const config_defaults[] = { 738 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 739}; 740 741// ---------------------------------------------------------------------------- 742 743template<typename T> 744static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 745{ 746 while (first <= last) { 747 int mid = (first + last) / 2; 748 if (key > sortedArray[mid].key) { 749 first = mid + 1; 750 } else if (key < sortedArray[mid].key) { 751 last = mid - 1; 752 } else { 753 return mid; 754 } 755 } 756 return -1; 757} 758 759static int isAttributeMatching(int i, EGLint attr, EGLint val) 760{ 761 // look for the attribute in all of our configs 762 config_pair_t const* configFound = gConfigs[i].array; 763 int index = binarySearch<config_pair_t>( 764 gConfigs[i].array, 765 0, gConfigs[i].size-1, 766 attr); 767 if (index < 0) { 768 configFound = config_base_attribute_list; 769 index = binarySearch<config_pair_t>( 770 config_base_attribute_list, 771 0, NELEM(config_base_attribute_list)-1, 772 attr); 773 } 774 if (index >= 0) { 775 // attribute found, check if this config could match 776 int cfgMgtIndex = binarySearch<config_management_t>( 777 gConfigManagement, 778 0, NELEM(gConfigManagement)-1, 779 attr); 780 if (index >= 0) { 781 bool match = gConfigManagement[cfgMgtIndex].match( 782 val, configFound[index].value); 783 if (match) { 784 // this config matches 785 return 1; 786 } 787 } else { 788 // attribute not found. this should NEVER happen. 789 } 790 } else { 791 // error, this attribute doesn't exist 792 } 793 return 0; 794} 795 796static int makeCurrent(ogles_context_t* gl) 797{ 798 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 799 if (gl) { 800 egl_context_t* c = egl_context_t::context(gl); 801 if (c->flags & egl_context_t::IS_CURRENT) { 802 if (current != gl) { 803 // it is an error to set a context current, if it's already 804 // current to another thread 805 return -1; 806 } 807 } else { 808 if (current) { 809 // mark the current context as not current, and flush 810 glFlush(); 811 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 812 } 813 } 814 if (!(c->flags & egl_context_t::IS_CURRENT)) { 815 // The context is not current, make it current! 816 setGlThreadSpecific(gl); 817 c->flags |= egl_context_t::IS_CURRENT; 818 } 819 } else { 820 if (current) { 821 // mark the current context as not current, and flush 822 glFlush(); 823 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 824 } 825 // this thread has no context attached to it 826 setGlThreadSpecific(0); 827 } 828 return 0; 829} 830 831static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 832 EGLint attribute, EGLint *value) 833{ 834 size_t numConfigs = NELEM(gConfigs); 835 int index = (int)config; 836 if (uint32_t(index) >= numConfigs) 837 return setError(EGL_BAD_CONFIG, EGL_FALSE); 838 839 int attrIndex; 840 attrIndex = binarySearch<config_pair_t>( 841 gConfigs[index].array, 842 0, gConfigs[index].size-1, 843 attribute); 844 if (attrIndex>=0) { 845 *value = gConfigs[index].array[attrIndex].value; 846 return EGL_TRUE; 847 } 848 849 attrIndex = binarySearch<config_pair_t>( 850 config_base_attribute_list, 851 0, NELEM(config_base_attribute_list)-1, 852 attribute); 853 if (attrIndex>=0) { 854 *value = config_base_attribute_list[attrIndex].value; 855 return EGL_TRUE; 856 } 857 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 858} 859 860static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 861 NativeWindowType window, const EGLint *attrib_list) 862{ 863 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 864 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 865 if (window == 0) 866 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 867 868 EGLint surfaceType; 869 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 870 return EGL_FALSE; 871 872 if (!(surfaceType & EGL_WINDOW_BIT)) 873 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 874 875 EGLint configID; 876 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 877 return EGL_FALSE; 878 879 int32_t depthFormat; 880 int32_t pixelFormat; 881 switch(configID) { 882 case 0: 883 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 884 depthFormat = 0; 885 break; 886 case 1: 887 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 888 depthFormat = GGL_PIXEL_FORMAT_Z_16; 889 break; 890 case 2: 891 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 892 depthFormat = 0; 893 break; 894 case 3: 895 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 896 depthFormat = GGL_PIXEL_FORMAT_Z_16; 897 break; 898 case 4: 899 pixelFormat = GGL_PIXEL_FORMAT_A_8; 900 depthFormat = 0; 901 break; 902 case 5: 903 pixelFormat = GGL_PIXEL_FORMAT_A_8; 904 depthFormat = GGL_PIXEL_FORMAT_Z_16; 905 break; 906 default: 907 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 908 } 909 910 // FIXME: we don't have access to the pixelFormat here just yet. 911 // (it's possible that the surface is not fully initialized) 912 // maybe this should be done after the page-flip 913 //if (EGLint(info.format) != pixelFormat) 914 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 915 916 egl_surface_t* surface; 917 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 918 static_cast<android_native_window_t*>(window)); 919 920 if (!surface->isValid()) { 921 // there was a problem in the ctor, the error 922 // flag has been set. 923 delete surface; 924 surface = 0; 925 } 926 return surface; 927} 928 929static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 930 NativePixmapType pixmap, const EGLint *attrib_list) 931{ 932 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 933 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 934 if (pixmap == 0) 935 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 936 937 EGLint surfaceType; 938 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 939 return EGL_FALSE; 940 941 if (!(surfaceType & EGL_PIXMAP_BIT)) 942 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 943 944 EGLint configID; 945 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 946 return EGL_FALSE; 947 948 int32_t depthFormat; 949 int32_t pixelFormat; 950 switch(configID) { 951 case 0: 952 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 953 depthFormat = 0; 954 break; 955 case 1: 956 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 957 depthFormat = GGL_PIXEL_FORMAT_Z_16; 958 break; 959 case 2: 960 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 961 depthFormat = 0; 962 break; 963 case 3: 964 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 965 depthFormat = GGL_PIXEL_FORMAT_Z_16; 966 break; 967 case 4: 968 pixelFormat = GGL_PIXEL_FORMAT_A_8; 969 depthFormat = 0; 970 break; 971 case 5: 972 pixelFormat = GGL_PIXEL_FORMAT_A_8; 973 depthFormat = GGL_PIXEL_FORMAT_Z_16; 974 break; 975 default: 976 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 977 } 978 979 if (pixmap->format != pixelFormat) 980 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 981 982 egl_surface_t* surface = 983 new egl_pixmap_surface_t(dpy, config, depthFormat, 984 static_cast<egl_native_pixmap_t*>(pixmap)); 985 986 if (!surface->isValid()) { 987 // there was a problem in the ctor, the error 988 // flag has been set. 989 delete surface; 990 surface = 0; 991 } 992 return surface; 993} 994 995static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 996 const EGLint *attrib_list) 997{ 998 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 999 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1000 1001 EGLint surfaceType; 1002 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1003 return EGL_FALSE; 1004 1005 if (!(surfaceType & EGL_PBUFFER_BIT)) 1006 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1007 1008 EGLint configID; 1009 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1010 return EGL_FALSE; 1011 1012 int32_t depthFormat; 1013 int32_t pixelFormat; 1014 switch(configID) { 1015 case 0: 1016 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1017 depthFormat = 0; 1018 break; 1019 case 1: 1020 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1021 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1022 break; 1023 case 2: 1024 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1025 depthFormat = 0; 1026 break; 1027 case 3: 1028 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1029 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1030 break; 1031 case 4: 1032 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1033 depthFormat = 0; 1034 break; 1035 case 5: 1036 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1037 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1038 break; 1039 default: 1040 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1041 } 1042 1043 int32_t w = 0; 1044 int32_t h = 0; 1045 while (attrib_list[0]) { 1046 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1047 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1048 attrib_list+=2; 1049 } 1050 1051 egl_surface_t* surface = 1052 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1053 1054 if (!surface->isValid()) { 1055 // there was a problem in the ctor, the error 1056 // flag has been set. 1057 delete surface; 1058 surface = 0; 1059 } 1060 return surface; 1061} 1062 1063// ---------------------------------------------------------------------------- 1064}; // namespace android 1065// ---------------------------------------------------------------------------- 1066 1067using namespace android; 1068 1069// ---------------------------------------------------------------------------- 1070// Initialization 1071// ---------------------------------------------------------------------------- 1072 1073EGLDisplay eglGetDisplay(NativeDisplayType display) 1074{ 1075#ifndef HAVE_ANDROID_OS 1076 // this just needs to be done once 1077 if (gGLKey == -1) { 1078 pthread_mutex_lock(&gInitMutex); 1079 if (gGLKey == -1) 1080 pthread_key_create(&gGLKey, NULL); 1081 pthread_mutex_unlock(&gInitMutex); 1082 } 1083#endif 1084 if (display == EGL_DEFAULT_DISPLAY) { 1085 EGLDisplay dpy = (EGLDisplay)1; 1086 egl_display_t& d = egl_display_t::get_display(dpy); 1087 d.type = display; 1088 return dpy; 1089 } 1090 return EGL_NO_DISPLAY; 1091} 1092 1093EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1094{ 1095 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1096 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1097 1098 EGLBoolean res = EGL_TRUE; 1099 egl_display_t& d = egl_display_t::get_display(dpy); 1100 1101 if (android_atomic_inc(&d.initialized) == 0) { 1102 // initialize stuff here if needed 1103 //pthread_mutex_lock(&gInitMutex); 1104 //pthread_mutex_unlock(&gInitMutex); 1105 } 1106 1107 if (res == EGL_TRUE) { 1108 if (major != NULL) *major = VERSION_MAJOR; 1109 if (minor != NULL) *minor = VERSION_MINOR; 1110 } 1111 return res; 1112} 1113 1114EGLBoolean eglTerminate(EGLDisplay dpy) 1115{ 1116 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1117 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1118 1119 EGLBoolean res = EGL_TRUE; 1120 egl_display_t& d = egl_display_t::get_display(dpy); 1121 if (android_atomic_dec(&d.initialized) == 1) { 1122 // TODO: destroy all resources (surfaces, contexts, etc...) 1123 //pthread_mutex_lock(&gInitMutex); 1124 //pthread_mutex_unlock(&gInitMutex); 1125 } 1126 return res; 1127} 1128 1129// ---------------------------------------------------------------------------- 1130// configuration 1131// ---------------------------------------------------------------------------- 1132 1133EGLBoolean eglGetConfigs( EGLDisplay dpy, 1134 EGLConfig *configs, 1135 EGLint config_size, EGLint *num_config) 1136{ 1137 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1138 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1139 1140 GLint numConfigs = NELEM(gConfigs); 1141 if (!configs) { 1142 *num_config = numConfigs; 1143 return EGL_TRUE; 1144 } 1145 GLint i; 1146 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1147 *configs++ = (EGLConfig)i; 1148 } 1149 *num_config = i; 1150 return EGL_TRUE; 1151} 1152 1153EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1154 EGLConfig *configs, EGLint config_size, 1155 EGLint *num_config) 1156{ 1157 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1158 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1159 1160 if (ggl_unlikely(num_config==0)) { 1161 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1162 } 1163 1164 if (ggl_unlikely(attrib_list==0)) { 1165 *num_config = 0; 1166 return EGL_TRUE; 1167 } 1168 1169 int numAttributes = 0; 1170 int numConfigs = NELEM(gConfigs); 1171 uint32_t possibleMatch = (1<<numConfigs)-1; 1172 while(possibleMatch && *attrib_list != EGL_NONE) { 1173 numAttributes++; 1174 EGLint attr = *attrib_list++; 1175 EGLint val = *attrib_list++; 1176 for (int i=0 ; i<numConfigs ; i++) { 1177 if (!(possibleMatch & (1<<i))) 1178 continue; 1179 if (isAttributeMatching(i, attr, val) == 0) { 1180 possibleMatch &= ~(1<<i); 1181 } 1182 } 1183 } 1184 1185 // now, handle the attributes which have a useful default value 1186 for (size_t j=0 ; j<NELEM(config_defaults) ; j++) { 1187 // see if this attribute was specified, if not apply its 1188 // default value 1189 if (binarySearch<config_pair_t>( 1190 (config_pair_t const*)attrib_list, 1191 0, numAttributes, 1192 config_defaults[j].key) < 0) 1193 { 1194 for (int i=0 ; i<numConfigs ; i++) { 1195 if (!(possibleMatch & (1<<i))) 1196 continue; 1197 if (isAttributeMatching(i, 1198 config_defaults[j].key, 1199 config_defaults[j].value) == 0) 1200 { 1201 possibleMatch &= ~(1<<i); 1202 } 1203 } 1204 } 1205 } 1206 1207 // return the configurations found 1208 int n=0; 1209 if (possibleMatch) { 1210 if (configs) { 1211 for (int i=0 ; config_size && i<numConfigs ; i++) { 1212 if (possibleMatch & (1<<i)) { 1213 *configs++ = (EGLConfig)i; 1214 config_size--; 1215 n++; 1216 } 1217 } 1218 } else { 1219 for (int i=0 ; i<numConfigs ; i++) { 1220 if (possibleMatch & (1<<i)) { 1221 n++; 1222 } 1223 } 1224 } 1225 } 1226 *num_config = n; 1227 return EGL_TRUE; 1228} 1229 1230EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1231 EGLint attribute, EGLint *value) 1232{ 1233 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1234 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1235 1236 return getConfigAttrib(dpy, config, attribute, value); 1237} 1238 1239// ---------------------------------------------------------------------------- 1240// surfaces 1241// ---------------------------------------------------------------------------- 1242 1243EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1244 NativeWindowType window, 1245 const EGLint *attrib_list) 1246{ 1247 return createWindowSurface(dpy, config, window, attrib_list); 1248} 1249 1250EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1251 NativePixmapType pixmap, 1252 const EGLint *attrib_list) 1253{ 1254 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1255} 1256 1257EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1258 const EGLint *attrib_list) 1259{ 1260 return createPbufferSurface(dpy, config, attrib_list); 1261} 1262 1263EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1264{ 1265 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1266 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1267 if (eglSurface != EGL_NO_SURFACE) { 1268 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1269 if (surface->magic != egl_surface_t::MAGIC) 1270 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1271 if (surface->dpy != dpy) 1272 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1273 delete surface; 1274 } 1275 return EGL_TRUE; 1276} 1277 1278EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1279 EGLint attribute, EGLint *value) 1280{ 1281 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1282 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1283 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1284 if (surface->dpy != dpy) 1285 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1286 1287 EGLBoolean ret = EGL_TRUE; 1288 switch (attribute) { 1289 case EGL_CONFIG_ID: 1290 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1291 break; 1292 case EGL_WIDTH: 1293 *value = surface->getWidth(); 1294 break; 1295 case EGL_HEIGHT: 1296 *value = surface->getHeight(); 1297 break; 1298 case EGL_LARGEST_PBUFFER: 1299 // not modified for a window or pixmap surface 1300 break; 1301 case EGL_TEXTURE_FORMAT: 1302 *value = EGL_NO_TEXTURE; 1303 break; 1304 case EGL_TEXTURE_TARGET: 1305 *value = EGL_NO_TEXTURE; 1306 break; 1307 case EGL_MIPMAP_TEXTURE: 1308 *value = EGL_FALSE; 1309 break; 1310 case EGL_MIPMAP_LEVEL: 1311 *value = 0; 1312 break; 1313 case EGL_RENDER_BUFFER: 1314 // TODO: return the real RENDER_BUFFER here 1315 *value = EGL_BACK_BUFFER; 1316 break; 1317 case EGL_HORIZONTAL_RESOLUTION: 1318 // pixel/mm * EGL_DISPLAY_SCALING 1319 *value = surface->getHorizontalResolution(); 1320 break; 1321 case EGL_VERTICAL_RESOLUTION: 1322 // pixel/mm * EGL_DISPLAY_SCALING 1323 *value = surface->getVerticalResolution(); 1324 break; 1325 case EGL_PIXEL_ASPECT_RATIO: { 1326 // w/h * EGL_DISPLAY_SCALING 1327 int wr = surface->getHorizontalResolution(); 1328 int hr = surface->getVerticalResolution(); 1329 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1330 } break; 1331 case EGL_SWAP_BEHAVIOR: 1332 *value = surface->getSwapBehavior(); 1333 break; 1334 default: 1335 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1336 } 1337 return ret; 1338} 1339 1340EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1341 EGLContext share_list, const EGLint *attrib_list) 1342{ 1343 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1344 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1345 1346 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1347 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1348 1349 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1350 c->flags = egl_context_t::NEVER_CURRENT; 1351 c->dpy = dpy; 1352 c->config = config; 1353 c->read = 0; 1354 c->draw = 0; 1355 return (EGLContext)gl; 1356} 1357 1358EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1359{ 1360 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1361 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1362 egl_context_t* c = egl_context_t::context(ctx); 1363 if (c->flags & egl_context_t::IS_CURRENT) 1364 setGlThreadSpecific(0); 1365 ogles_uninit((ogles_context_t*)ctx); 1366 return EGL_TRUE; 1367} 1368 1369EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1370 EGLSurface read, EGLContext ctx) 1371{ 1372 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1373 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1374 if (draw) { 1375 egl_surface_t* s = (egl_surface_t*)draw; 1376 if (s->dpy != dpy) 1377 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1378 // TODO: check that draw and read are compatible with the context 1379 } 1380 1381 EGLContext current_ctx = EGL_NO_CONTEXT; 1382 1383 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1384 return setError(EGL_BAD_MATCH, EGL_FALSE); 1385 1386 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1387 return setError(EGL_BAD_MATCH, EGL_FALSE); 1388 1389 if (ctx == EGL_NO_CONTEXT) { 1390 // if we're detaching, we need the current context 1391 current_ctx = (EGLContext)getGlThreadSpecific(); 1392 } else { 1393 egl_context_t* c = egl_context_t::context(ctx); 1394 egl_surface_t* d = (egl_surface_t*)draw; 1395 egl_surface_t* r = (egl_surface_t*)read; 1396 if ((d && d->ctx && d->ctx != ctx) || 1397 (r && r->ctx && r->ctx != ctx)) { 1398 // once of the surface is bound to a context in another thread 1399 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1400 } 1401 } 1402 1403 // TODO: call connect / disconnect on the surface 1404 1405 ogles_context_t* gl = (ogles_context_t*)ctx; 1406 if (makeCurrent(gl) == 0) { 1407 if (ctx) { 1408 egl_context_t* c = egl_context_t::context(ctx); 1409 egl_surface_t* d = (egl_surface_t*)draw; 1410 egl_surface_t* r = (egl_surface_t*)read; 1411 c->read = read; 1412 c->draw = draw; 1413 if (c->flags & egl_context_t::NEVER_CURRENT) { 1414 c->flags &= ~egl_context_t::NEVER_CURRENT; 1415 GLint w = 0; 1416 GLint h = 0; 1417 if (draw) { 1418 w = d->getWidth(); 1419 h = d->getHeight(); 1420 } 1421 ogles_surfaceport(gl, 0, 0); 1422 ogles_viewport(gl, 0, 0, w, h); 1423 ogles_scissor(gl, 0, 0, w, h); 1424 } 1425 if (d) { 1426 d->ctx = ctx; 1427 d->bindDrawSurface(gl); 1428 } 1429 if (r) { 1430 r->ctx = ctx; 1431 r->bindReadSurface(gl); 1432 } 1433 } else { 1434 // if surfaces were bound to the context bound to this thread 1435 // mark then as unbound. 1436 if (current_ctx) { 1437 egl_context_t* c = egl_context_t::context(current_ctx); 1438 egl_surface_t* d = (egl_surface_t*)c->draw; 1439 egl_surface_t* r = (egl_surface_t*)c->read; 1440 if (d) d->ctx = EGL_NO_CONTEXT; 1441 if (r) r->ctx = EGL_NO_CONTEXT; 1442 } 1443 } 1444 return EGL_TRUE; 1445 } 1446 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1447} 1448 1449EGLContext eglGetCurrentContext(void) 1450{ 1451 // eglGetCurrentContext returns the current EGL rendering context, 1452 // as specified by eglMakeCurrent. If no context is current, 1453 // EGL_NO_CONTEXT is returned. 1454 return (EGLContext)getGlThreadSpecific(); 1455} 1456 1457EGLSurface eglGetCurrentSurface(EGLint readdraw) 1458{ 1459 // eglGetCurrentSurface returns the read or draw surface attached 1460 // to the current EGL rendering context, as specified by eglMakeCurrent. 1461 // If no context is current, EGL_NO_SURFACE is returned. 1462 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1463 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1464 egl_context_t* c = egl_context_t::context(ctx); 1465 if (readdraw == EGL_READ) { 1466 return c->read; 1467 } else if (readdraw == EGL_DRAW) { 1468 return c->draw; 1469 } 1470 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1471} 1472 1473EGLDisplay eglGetCurrentDisplay(void) 1474{ 1475 // eglGetCurrentDisplay returns the current EGL display connection 1476 // for the current EGL rendering context, as specified by eglMakeCurrent. 1477 // If no context is current, EGL_NO_DISPLAY is returned. 1478 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1479 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1480 egl_context_t* c = egl_context_t::context(ctx); 1481 return c->dpy; 1482} 1483 1484EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1485 EGLint attribute, EGLint *value) 1486{ 1487 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1488 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1489 egl_context_t* c = egl_context_t::context(ctx); 1490 switch (attribute) { 1491 case EGL_CONFIG_ID: 1492 // Returns the ID of the EGL frame buffer configuration with 1493 // respect to which the context was created 1494 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1495 } 1496 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1497} 1498 1499EGLBoolean eglWaitGL(void) 1500{ 1501 return EGL_TRUE; 1502} 1503 1504EGLBoolean eglWaitNative(EGLint engine) 1505{ 1506 return EGL_TRUE; 1507} 1508 1509EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1510{ 1511 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1512 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1513 1514 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1515 if (d->dpy != dpy) 1516 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1517 1518 // post the surface 1519 d->swapBuffers(); 1520 1521 // if it's bound to a context, update the buffer 1522 if (d->ctx != EGL_NO_CONTEXT) { 1523 d->bindDrawSurface((ogles_context_t*)d->ctx); 1524 // if this surface is also the read surface of the context 1525 // it is bound to, make sure to update the read buffer as well. 1526 // The EGL spec is a little unclear about this. 1527 egl_context_t* c = egl_context_t::context(d->ctx); 1528 if (c->read == draw) { 1529 d->bindReadSurface((ogles_context_t*)d->ctx); 1530 } 1531 } 1532 1533 return EGL_TRUE; 1534} 1535 1536EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1537 NativePixmapType target) 1538{ 1539 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1540 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1541 // TODO: eglCopyBuffers() 1542 return EGL_FALSE; 1543} 1544 1545EGLint eglGetError(void) 1546{ 1547 return getError(); 1548} 1549 1550const char* eglQueryString(EGLDisplay dpy, EGLint name) 1551{ 1552 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1553 return setError(EGL_BAD_DISPLAY, (const char*)0); 1554 1555 switch (name) { 1556 case EGL_VENDOR: 1557 return gVendorString; 1558 case EGL_VERSION: 1559 return gVersionString; 1560 case EGL_EXTENSIONS: 1561 return gExtensionsString; 1562 case EGL_CLIENT_APIS: 1563 return gClientApiString; 1564 } 1565 return setError(EGL_BAD_PARAMETER, (const char *)0); 1566} 1567 1568// ---------------------------------------------------------------------------- 1569// EGL 1.1 1570// ---------------------------------------------------------------------------- 1571 1572EGLBoolean eglSurfaceAttrib( 1573 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1574{ 1575 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1576 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1577 // TODO: eglSurfaceAttrib() 1578 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1579} 1580 1581EGLBoolean eglBindTexImage( 1582 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1583{ 1584 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1585 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1586 // TODO: eglBindTexImage() 1587 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1588} 1589 1590EGLBoolean eglReleaseTexImage( 1591 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1592{ 1593 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1594 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1595 // TODO: eglReleaseTexImage() 1596 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1597} 1598 1599EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1600{ 1601 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1602 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1603 // TODO: eglSwapInterval() 1604 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1605} 1606 1607// ---------------------------------------------------------------------------- 1608// EGL 1.2 1609// ---------------------------------------------------------------------------- 1610 1611EGLBoolean eglBindAPI(EGLenum api) 1612{ 1613 if (api != EGL_OPENGL_ES_API) 1614 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1615 return EGL_TRUE; 1616} 1617 1618EGLenum eglQueryAPI(void) 1619{ 1620 return EGL_OPENGL_ES_API; 1621} 1622 1623EGLBoolean eglWaitClient(void) 1624{ 1625 glFinish(); 1626 return EGL_TRUE; 1627} 1628 1629EGLBoolean eglReleaseThread(void) 1630{ 1631 // TODO: eglReleaseThread() 1632 return EGL_TRUE; 1633} 1634 1635EGLSurface eglCreatePbufferFromClientBuffer( 1636 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 1637 EGLConfig config, const EGLint *attrib_list) 1638{ 1639 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1640 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1641 // TODO: eglCreatePbufferFromClientBuffer() 1642 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 1643} 1644 1645// ---------------------------------------------------------------------------- 1646// EGL_EGLEXT_VERSION 3 1647// ---------------------------------------------------------------------------- 1648 1649void (*eglGetProcAddress (const char *procname))() 1650{ 1651 extention_map_t const * const map = gExtentionMap; 1652 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 1653 if (!strcmp(procname, map[i].name)) { 1654 return map[i].address; 1655 } 1656 } 1657 return NULL; 1658} 1659 1660EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 1661 const EGLint *attrib_list) 1662{ 1663 EGLBoolean result = EGL_FALSE; 1664 return result; 1665} 1666 1667EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 1668{ 1669 EGLBoolean result = EGL_FALSE; 1670 return result; 1671} 1672 1673EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 1674 EGLClientBuffer buffer, const EGLint *attrib_list) 1675{ 1676 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 1677 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 1678 } 1679 if (ctx != EGL_NO_CONTEXT) { 1680 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 1681 } 1682 if (target != EGL_NATIVE_BUFFER_ANDROID) { 1683 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1684 } 1685 1686 android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer; 1687 1688 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 1689 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1690 1691 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 1692 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1693 1694 hw_module_t const* pModule; 1695 if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule)) 1696 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1697 buffer_handle_t bufferHandle; 1698 gralloc_module_t const* module = 1699 reinterpret_cast<gralloc_module_t const*>(pModule); 1700 if (native_buffer->getHandle(native_buffer, &bufferHandle) < 0) 1701 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1702 int err = module->map(module, bufferHandle, &native_buffer->bits); 1703 if (err < 0) { 1704 LOGW_IF(err, "map(...) failed %d (%s)", err, strerror(-err)); 1705 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 1706 } 1707 1708 native_buffer->common.incRef(&native_buffer->common); 1709 return (EGLImageKHR)native_buffer; 1710} 1711 1712EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 1713{ 1714 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 1715 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1716 } 1717 1718 android_native_buffer_t* native_buffer = (android_native_buffer_t*)img; 1719 1720 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 1721 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1722 1723 if (native_buffer->common.version != sizeof(android_native_buffer_t)) 1724 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1725 1726 hw_module_t const* pModule; 1727 if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule) == 0) { 1728 buffer_handle_t bufferHandle; 1729 gralloc_module_t const* module = 1730 reinterpret_cast<gralloc_module_t const*>(pModule); 1731 int err = native_buffer->getHandle(native_buffer, &bufferHandle); 1732 if (err == 0) { 1733 int err = module->unmap(module, bufferHandle); 1734 LOGW_IF(err, "unmap(...) failed %d (%s)", err, strerror(-err)); 1735 } 1736 } 1737 1738 native_buffer->common.decRef(&native_buffer->common); 1739 1740 return EGL_TRUE; 1741} 1742