src/egl/main/eglsurface.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
   4  * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
   5  * Copyright 2010 LunarG, Inc.
   6  * All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the
  10  * "Software"), to deal in the Software without restriction, including
  11  * without limitation the rights to use, copy, modify, merge, publish,
  12  * distribute, sub license, and/or sell copies of the Software, and to
  13  * permit persons to whom the Software is furnished to do so, subject to
  14  * the following conditions:
  15  *
  16  * The above copyright notice and this permission notice (including the
  17  * next paragraph) shall be included in all copies or substantial portions
  18  * of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  23  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  25  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  26  * DEALINGS IN THE SOFTWARE.
  27  *
  28  **************************************************************************/
  29
  30
  31 /**
  32  * Surface-related functions.
  33  */
  34
  35
  36 #include <assert.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include "egldisplay.h"
  40 #include "egldriver.h"
  41 #include "eglcontext.h"
  42 #include "eglconfig.h"
  43 #include "eglcurrent.h"
  44 #include "egllog.h"
  45 #include "eglsurface.h"
  46
  47
  48 static void
  49 _eglClampSwapInterval(_EGLSurface *surf, EGLint interval)
  50 {
  51    EGLint bound = surf->Config->MaxSwapInterval;
  52    if (interval >= bound) {
  53       interval = bound;
  54    }
  55    else {
  56       bound = surf->Config->MinSwapInterval;
  57       if (interval < bound)
  58          interval = bound;
  59    }
  60    surf->SwapInterval = interval;
  61 }
  62
  63
  64 /**
  65  * Parse the list of surface attributes and return the proper error code.
  66  */
  67 static EGLint
  68 _eglParseSurfaceAttribList(_EGLSurface *surf, const EGLint *attrib_list)
  69 {
  70    _EGLDisplay *dpy = surf->Resource.Display;
  71    EGLint type = surf->Type;
  72    EGLint texture_type = EGL_PBUFFER_BIT;
  73    EGLint i, err = EGL_SUCCESS;
  74    EGLint attr = EGL_NONE;
  75    EGLint val = EGL_NONE;
  76
  77    if (!attrib_list)
  78       return EGL_SUCCESS;
  79
  80    if (dpy->Extensions.NOK_texture_from_pixmap)
  81       texture_type |= EGL_PIXMAP_BIT;
  82
  83    for (i = 0; attrib_list[i] != EGL_NONE; i++) {
  84       attr = attrib_list[i++];
  85       val = attrib_list[i];
  86
  87       switch (attr) {
  88       /* common attributes */
  89       case EGL_GL_COLORSPACE_KHR:
  90          if (!dpy->Extensions.KHR_gl_colorspace) {
  91             err = EGL_BAD_ATTRIBUTE;
  92             break;
  93          }
  94          switch (val) {
  95          case EGL_GL_COLORSPACE_SRGB_KHR:
  96          case EGL_GL_COLORSPACE_LINEAR_KHR:
  97             break;
  98          default:
  99             err = EGL_BAD_ATTRIBUTE;
 100          }
 101          if (err != EGL_SUCCESS)
 102             break;
 103          surf->GLColorspace = val;
 104          break;
 105       case EGL_VG_COLORSPACE:
 106          switch (val) {
 107          case EGL_VG_COLORSPACE_sRGB:
 108          case EGL_VG_COLORSPACE_LINEAR:
 109             break;
 110          default:
 111             err = EGL_BAD_ATTRIBUTE;
 112             break;
 113          }
 114          if (err != EGL_SUCCESS)
 115             break;
 116          surf->VGColorspace = val;
 117          break;
 118       case EGL_VG_ALPHA_FORMAT:
 119          switch (val) {
 120          case EGL_VG_ALPHA_FORMAT_NONPRE:
 121          case EGL_VG_ALPHA_FORMAT_PRE:
 122             break;
 123          default:
 124             err = EGL_BAD_ATTRIBUTE;
 125             break;
 126          }
 127          if (err != EGL_SUCCESS)
 128             break;
 129          surf->VGAlphaFormat = val;
 130          break;
 131       /* window surface attributes */
 132       case EGL_RENDER_BUFFER:
 133          if (type != EGL_WINDOW_BIT) {
 134             err = EGL_BAD_ATTRIBUTE;
 135             break;
 136          }
 137          if (val != EGL_BACK_BUFFER && val != EGL_SINGLE_BUFFER) {
 138             err = EGL_BAD_ATTRIBUTE;
 139             break;
 140          }
 141          surf->RenderBuffer = val;
 142          break;
 143       case EGL_POST_SUB_BUFFER_SUPPORTED_NV:
 144          if (!dpy->Extensions.NV_post_sub_buffer ||
 145              type != EGL_WINDOW_BIT) {
 146             err = EGL_BAD_ATTRIBUTE;
 147             break;
 148          }
 149          if (val != EGL_TRUE && val != EGL_FALSE) {
 150             err = EGL_BAD_PARAMETER;
 151             break;
 152          }
 153          surf->PostSubBufferSupportedNV = val;
 154          break;
 155       /* pbuffer surface attributes */
 156       case EGL_WIDTH:
 157          if (type != EGL_PBUFFER_BIT) {
 158             err = EGL_BAD_ATTRIBUTE;
 159             break;
 160          }
 161          if (val < 0) {
 162             err = EGL_BAD_PARAMETER;
 163             break;
 164          }
 165          surf->Width = val;
 166          break;
 167       case EGL_HEIGHT:
 168          if (type != EGL_PBUFFER_BIT) {
 169             err = EGL_BAD_ATTRIBUTE;
 170             break;
 171          }
 172          if (val < 0) {
 173             err = EGL_BAD_PARAMETER;
 174             break;
 175          }
 176          surf->Height = val;
 177          break;
 178       case EGL_LARGEST_PBUFFER:
 179          if (type != EGL_PBUFFER_BIT) {
 180             err = EGL_BAD_ATTRIBUTE;
 181             break;
 182          }
 183          surf->LargestPbuffer = !!val;
 184          break;
 185       /* for eglBindTexImage */
 186       case EGL_TEXTURE_FORMAT:
 187          if (!(type & texture_type)) {
 188             err = EGL_BAD_ATTRIBUTE;
 189             break;
 190          }
 191
 192          switch (val) {
 193          case EGL_TEXTURE_RGB:
 194          case EGL_TEXTURE_RGBA:
 195          case EGL_NO_TEXTURE:
 196             break;
 197          default:
 198             err = EGL_BAD_ATTRIBUTE;
 199             break;
 200          }
 201          if (err != EGL_SUCCESS)
 202             break;
 203          surf->TextureFormat = val;
 204          break;
 205       case EGL_TEXTURE_TARGET:
 206          if (!(type & texture_type)) {
 207             err = EGL_BAD_ATTRIBUTE;
 208             break;
 209          }
 210
 211          switch (val) {
 212          case EGL_TEXTURE_2D:
 213          case EGL_NO_TEXTURE:
 214             break;
 215          default:
 216             err = EGL_BAD_ATTRIBUTE;
 217             break;
 218          }
 219          if (err != EGL_SUCCESS)
 220             break;
 221          surf->TextureTarget = val;
 222          break;
 223       case EGL_MIPMAP_TEXTURE:
 224          if (!(type & texture_type)) {
 225             err = EGL_BAD_ATTRIBUTE;
 226             break;
 227          }
 228          surf->MipmapTexture = !!val;
 229          break;
 230       /* no pixmap surface specific attributes */
 231       default:
 232          err = EGL_BAD_ATTRIBUTE;
 233          break;
 234       }
 235
 236       if (err != EGL_SUCCESS)
 237          break;
 238    }
 239
 240    if (err == EGL_SUCCESS && type == EGL_PBUFFER_BIT) {
 241       if ((surf->TextureTarget == EGL_NO_TEXTURE && surf->TextureFormat != EGL_NO_TEXTURE) ||
 242           (surf->TextureFormat == EGL_NO_TEXTURE && surf->TextureTarget != EGL_NO_TEXTURE)) {
 243          attr = surf->TextureTarget == EGL_NO_TEXTURE ? EGL_TEXTURE_TARGET : EGL_TEXTURE_FORMAT;
 244          err = EGL_BAD_MATCH;
 245       }
 246    }
 247
 248    if (err != EGL_SUCCESS)
 249       _eglLog(_EGL_WARNING, "bad surface attribute 0x%04x", attr);
 250
 251    return err;
 252 }
 253
 254
 255 /**
 256  * Do error check on parameters and initialize the given _EGLSurface object.
 257  * \return EGL_TRUE if no errors, EGL_FALSE otherwise.
 258  */
 259 EGLBoolean
 260 _eglInitSurface(_EGLSurface *surf, _EGLDisplay *dpy, EGLint type,
 261                 _EGLConfig *conf, const EGLint *attrib_list)
 262 {
 263    const char *func;
 264    EGLint renderBuffer = EGL_BACK_BUFFER;
 265    EGLint swapBehavior = EGL_BUFFER_DESTROYED;
 266    EGLint err;
 267
 268    /* Swap behavior can be preserved only if config supports this. */
 269    if (conf->SurfaceType & EGL_SWAP_BEHAVIOR_PRESERVED_BIT)
 270       swapBehavior = EGL_BUFFER_PRESERVED;
 271
 272    switch (type) {
 273    case EGL_WINDOW_BIT:
 274       func = "eglCreateWindowSurface";
 275       swapBehavior = EGL_BUFFER_DESTROYED;
 276       break;
 277    case EGL_PIXMAP_BIT:
 278       func = "eglCreatePixmapSurface";
 279       renderBuffer = EGL_SINGLE_BUFFER;
 280       break;
 281    case EGL_PBUFFER_BIT:
 282       func = "eglCreatePBufferSurface";
 283       break;
 284    default:
 285       _eglLog(_EGL_WARNING, "Bad type in _eglInitSurface");
 286       return EGL_FALSE;
 287    }
 288
 289    if ((conf->SurfaceType & type) == 0) {
 290       /* The config can't be used to create a surface of this type */
 291       _eglError(EGL_BAD_MATCH, func);
 292       return EGL_FALSE;
 293    }
 294
 295    _eglInitResource(&surf->Resource, sizeof(*surf), dpy);
 296    surf->Type = type;
 297    surf->Config = conf;
 298    surf->Lost = EGL_FALSE;
 299
 300    surf->Width = 0;
 301    surf->Height = 0;
 302    surf->TextureFormat = EGL_NO_TEXTURE;
 303    surf->TextureTarget = EGL_NO_TEXTURE;
 304    surf->MipmapTexture = EGL_FALSE;
 305    surf->LargestPbuffer = EGL_FALSE;
 306    surf->RenderBuffer = renderBuffer;
 307    surf->VGAlphaFormat = EGL_VG_ALPHA_FORMAT_NONPRE;
 308    surf->VGColorspace = EGL_VG_COLORSPACE_sRGB;
 309    surf->GLColorspace = EGL_GL_COLORSPACE_LINEAR_KHR;
 310
 311    surf->MipmapLevel = 0;
 312    surf->MultisampleResolve = EGL_MULTISAMPLE_RESOLVE_DEFAULT;
 313    surf->SwapBehavior = swapBehavior;
 314
 315    surf->HorizontalResolution = EGL_UNKNOWN;
 316    surf->VerticalResolution = EGL_UNKNOWN;
 317    surf->AspectRatio = EGL_UNKNOWN;
 318
 319    surf->PostSubBufferSupportedNV = EGL_FALSE;
 320
 321    /* the default swap interval is 1 */
 322    _eglClampSwapInterval(surf, 1);
 323
 324    err = _eglParseSurfaceAttribList(surf, attrib_list);
 325    if (err != EGL_SUCCESS)
 326       return _eglError(err, func);
 327
 328    /* if EGL_LARGEST_PBUFFER in use, clamp width and height */
 329    if (surf->LargestPbuffer) {
 330       surf->Width = MIN2(surf->Width, _EGL_MAX_PBUFFER_WIDTH);
 331       surf->Height = MIN2(surf->Height, _EGL_MAX_PBUFFER_HEIGHT);
 332    }
 333
 334    return EGL_TRUE;
 335 }
 336
 337
 338 EGLBoolean
 339 _eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
 340                  EGLint attribute, EGLint *value)
 341 {
 342    switch (attribute) {
 343    case EGL_WIDTH:
 344       *value = surface->Width;
 345       break;
 346    case EGL_HEIGHT:
 347       *value = surface->Height;
 348       break;
 349    case EGL_CONFIG_ID:
 350       *value = surface->Config->ConfigID;
 351       break;
 352    case EGL_LARGEST_PBUFFER:
 353       if (surface->Type == EGL_PBUFFER_BIT)
 354          *value = surface->LargestPbuffer;
 355       break;
 356    case EGL_TEXTURE_FORMAT:
 357       /* texture attributes: only for pbuffers, no error otherwise */
 358       if (surface->Type == EGL_PBUFFER_BIT)
 359          *value = surface->TextureFormat;
 360       break;
 361    case EGL_TEXTURE_TARGET:
 362       if (surface->Type == EGL_PBUFFER_BIT)
 363          *value = surface->TextureTarget;
 364       break;
 365    case EGL_MIPMAP_TEXTURE:
 366       if (surface->Type == EGL_PBUFFER_BIT)
 367          *value = surface->MipmapTexture;
 368       break;
 369    case EGL_MIPMAP_LEVEL:
 370       if (surface->Type == EGL_PBUFFER_BIT)
 371          *value = surface->MipmapLevel;
 372       break;
 373    case EGL_SWAP_BEHAVIOR:
 374       *value = surface->SwapBehavior;
 375       break;
 376    case EGL_RENDER_BUFFER:
 377       *value = surface->RenderBuffer;
 378       break;
 379    case EGL_PIXEL_ASPECT_RATIO:
 380       *value = surface->AspectRatio;
 381       break;
 382    case EGL_HORIZONTAL_RESOLUTION:
 383       *value = surface->HorizontalResolution;
 384       break;
 385    case EGL_VERTICAL_RESOLUTION:
 386       *value = surface->VerticalResolution;
 387       break;
 388    case EGL_MULTISAMPLE_RESOLVE:
 389       *value = surface->MultisampleResolve;
 390       break;
 391    case EGL_VG_ALPHA_FORMAT:
 392       *value = surface->VGAlphaFormat;
 393       break;
 394    case EGL_VG_COLORSPACE:
 395       *value = surface->VGColorspace;
 396       break;
 397    case EGL_GL_COLORSPACE_KHR:
 398       if (!dpy->Extensions.KHR_gl_colorspace) {
 399          _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
 400          return EGL_FALSE;
 401       }
 402       *value = surface->GLColorspace;
 403       break;
 404    case EGL_POST_SUB_BUFFER_SUPPORTED_NV:
 405       *value = surface->PostSubBufferSupportedNV;
 406       break;
 407    case EGL_BUFFER_AGE_EXT:
 408       if (!dpy->Extensions.EXT_buffer_age) {
 409          _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
 410          return EGL_FALSE;
 411       }
 412       *value = drv->API.QueryBufferAge(drv, dpy, surface);
 413       break;
 414    default:
 415       _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
 416       return EGL_FALSE;
 417    }
 418
 419    return EGL_TRUE;
 420 }
 421
 422
 423 /**
 424  * Default fallback routine - drivers might override this.
 425  */
 426 EGLBoolean
 427 _eglSurfaceAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
 428                   EGLint attribute, EGLint value)
 429 {
 430    EGLint confval;
 431    EGLint err = EGL_SUCCESS;
 432    EGLint all_es_bits = EGL_OPENGL_ES_BIT |
 433                         EGL_OPENGL_ES2_BIT |
 434                         EGL_OPENGL_ES3_BIT_KHR;
 435
 436    switch (attribute) {
 437    case EGL_MIPMAP_LEVEL:
 438       confval = surface->Config->RenderableType;
 439       if (!(confval & all_es_bits)) {
 440          err = EGL_BAD_PARAMETER;
 441          break;
 442       }
 443       surface->MipmapLevel = value;
 444       break;
 445    case EGL_MULTISAMPLE_RESOLVE:
 446       switch (value) {
 447       case EGL_MULTISAMPLE_RESOLVE_DEFAULT:
 448          break;
 449       case EGL_MULTISAMPLE_RESOLVE_BOX:
 450          confval = surface->Config->SurfaceType;
 451          if (!(confval & EGL_MULTISAMPLE_RESOLVE_BOX_BIT))
 452             err = EGL_BAD_MATCH;
 453          break;
 454       default:
 455          err = EGL_BAD_ATTRIBUTE;
 456          break;
 457       }
 458       if (err != EGL_SUCCESS)
 459          break;
 460       surface->MultisampleResolve = value;
 461       break;
 462    case EGL_SWAP_BEHAVIOR:
 463       switch (value) {
 464       case EGL_BUFFER_DESTROYED:
 465          break;
 466       case EGL_BUFFER_PRESERVED:
 467          confval = surface->Config->SurfaceType;
 468          if (!(confval & EGL_SWAP_BEHAVIOR_PRESERVED_BIT))
 469             err = EGL_BAD_MATCH;
 470          break;
 471       default:
 472          err = EGL_BAD_ATTRIBUTE;
 473          break;
 474       }
 475       if (err != EGL_SUCCESS)
 476          break;
 477       surface->SwapBehavior = value;
 478       break;
 479    default:
 480       err = EGL_BAD_ATTRIBUTE;
 481       break;
 482    }
 483
 484    if (err != EGL_SUCCESS)
 485       return _eglError(err, "eglSurfaceAttrib");
 486    return EGL_TRUE;
 487 }
 488
 489
 490 EGLBoolean
 491 _eglBindTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
 492                  EGLint buffer)
 493 {
 494    EGLint texture_type = EGL_PBUFFER_BIT;
 495
 496    /* Just do basic error checking and return success/fail.
 497     * Drivers must implement the real stuff.
 498     */
 499
 500    if (dpy->Extensions.NOK_texture_from_pixmap)
 501       texture_type |= EGL_PIXMAP_BIT;
 502
 503    if (!(surface->Type & texture_type)) {
 504       _eglError(EGL_BAD_SURFACE, "eglBindTexImage");
 505       return EGL_FALSE;
 506    }
 507
 508    if (surface->TextureFormat == EGL_NO_TEXTURE) {
 509       _eglError(EGL_BAD_MATCH, "eglBindTexImage");
 510       return EGL_FALSE;
 511    }
 512
 513    if (surface->TextureTarget == EGL_NO_TEXTURE) {
 514       _eglError(EGL_BAD_MATCH, "eglBindTexImage");
 515       return EGL_FALSE;
 516    }
 517
 518    if (buffer != EGL_BACK_BUFFER) {
 519       _eglError(EGL_BAD_PARAMETER, "eglBindTexImage");
 520       return EGL_FALSE;
 521    }
 522
 523    surface->BoundToTexture = EGL_TRUE;
 524
 525    return EGL_TRUE;
 526 }
 527
 528 EGLBoolean
 529 _eglReleaseTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
 530                     EGLint buffer)
 531 {
 532    /* Just do basic error checking and return success/fail.
 533     * Drivers must implement the real stuff.
 534     */
 535
 536    EGLint texture_type = EGL_PBUFFER_BIT;
 537
 538    if (surf == EGL_NO_SURFACE)
 539    {
 540       _eglError(EGL_BAD_SURFACE, "eglReleaseTexImage");
 541       return EGL_FALSE;
 542    }
 543
 544    if (!surf->BoundToTexture)
 545    {
 546       /* Not an error, simply nothing to do */
 547       return EGL_TRUE;
 548    }
 549
 550    if (surf->TextureFormat == EGL_NO_TEXTURE)
 551    {
 552       _eglError(EGL_BAD_MATCH, "eglReleaseTexImage");
 553       return EGL_FALSE;
 554    }
 555
 556    if (buffer != EGL_BACK_BUFFER)
 557    {
 558       _eglError(EGL_BAD_PARAMETER, "eglReleaseTexImage");
 559       return EGL_FALSE;
 560    }
 561
 562    if (dpy->Extensions.NOK_texture_from_pixmap)
 563       texture_type |= EGL_PIXMAP_BIT;
 564
 565    if (!(surf->Type & texture_type))
 566    {
 567       _eglError(EGL_BAD_SURFACE, "eglReleaseTexImage");
 568       return EGL_FALSE;
 569    }
 570
 571    surf->BoundToTexture = EGL_FALSE;
 572
 573    return EGL_TRUE;
 574 }
 575
 576
 577 EGLBoolean
 578 _eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
 579                  EGLint interval)
 580 {
 581    _eglClampSwapInterval(surf, interval);
 582    return EGL_TRUE;
 583 }