src/gallium/state_trackers/wgl/stw_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include <windows.h>
  29
  30 #include "pipe/p_compiler.h"
  31 #include "pipe/p_context.h"
  32 #include "state_tracker/st_api.h"
  33
  34 /* for _mesa_share_state */
  35 #include "state_tracker/st_context.h"
  36 #include "main/context.h"
  37
  38 #include "stw_icd.h"
  39 #include "stw_device.h"
  40 #include "stw_winsys.h"
  41 #include "stw_framebuffer.h"
  42 #include "stw_pixelformat.h"
  43 #include "stw_context.h"
  44 #include "stw_tls.h"
  45
  46
  47 static INLINE struct stw_context *
  48 stw_current_context(void)
  49 {
  50    struct st_context_iface *st;
  51
  52    st = (stw_dev) ? stw_dev->stapi->get_current(stw_dev->stapi) : NULL;
  53
  54    return (struct stw_context *) ((st) ? st->st_manager_private : NULL);
  55 }
  56
  57 BOOL APIENTRY
  58 DrvCopyContext(
  59    DHGLRC dhrcSource,
  60    DHGLRC dhrcDest,
  61    UINT fuMask )
  62 {
  63    struct stw_context *src;
  64    struct stw_context *dst;
  65    BOOL ret = FALSE;
  66
  67    if (!stw_dev)
  68       return FALSE;
  69
  70    pipe_mutex_lock( stw_dev->ctx_mutex );
  71
  72    src = stw_lookup_context_locked( dhrcSource );
  73    dst = stw_lookup_context_locked( dhrcDest );
  74
  75    if (src && dst) {
  76       /* FIXME */
  77       assert(0);
  78       (void) src;
  79       (void) dst;
  80       (void) fuMask;
  81    }
  82
  83    pipe_mutex_unlock( stw_dev->ctx_mutex );
  84
  85    return ret;
  86 }
  87
  88 BOOL APIENTRY
  89 DrvShareLists(
  90    DHGLRC dhglrc1,
  91    DHGLRC dhglrc2 )
  92 {
  93    struct stw_context *ctx1;
  94    struct stw_context *ctx2;
  95    BOOL ret = FALSE;
  96
  97    if (!stw_dev)
  98       return FALSE;
  99
 100    pipe_mutex_lock( stw_dev->ctx_mutex );
 101
 102    ctx1 = stw_lookup_context_locked( dhglrc1 );
 103    ctx2 = stw_lookup_context_locked( dhglrc2 );
 104
 105    if (ctx1 && ctx2) {
 106       struct st_context *st1, *st2;
 107
 108       st1 = (struct st_context *) ctx1->st;
 109       st2 = (struct st_context *) ctx2->st;
 110       ret = _mesa_share_state(st2->ctx, st1->ctx);
 111    }
 112
 113    pipe_mutex_unlock( stw_dev->ctx_mutex );
 114
 115    return ret;
 116 }
 117
 118 DHGLRC APIENTRY
 119 DrvCreateContext(
 120    HDC hdc )
 121 {
 122    return DrvCreateLayerContext( hdc, 0 );
 123 }
 124
 125 DHGLRC APIENTRY
 126 DrvCreateLayerContext(
 127    HDC hdc,
 128    INT iLayerPlane )
 129 {
 130    int iPixelFormat;
 131    const struct stw_pixelformat_info *pfi;
 132    struct stw_context *ctx = NULL;
 133
 134    if(!stw_dev)
 135       return 0;
 136
 137    if (iLayerPlane != 0)
 138       return 0;
 139
 140    iPixelFormat = GetPixelFormat(hdc);
 141    if(!iPixelFormat)
 142       return 0;
 143
 144    pfi = stw_pixelformat_get_info( iPixelFormat - 1 );
 145
 146    ctx = CALLOC_STRUCT( stw_context );
 147    if (ctx == NULL)
 148       goto no_ctx;
 149
 150    ctx->hdc = hdc;
 151    ctx->iPixelFormat = iPixelFormat;
 152
 153    ctx->st = stw_dev->stapi->create_context(stw_dev->stapi,
 154          stw_dev->smapi, &pfi->stvis, NULL);
 155    if (ctx->st == NULL)
 156       goto no_st_ctx;
 157
 158    ctx->st->st_manager_private = (void *) ctx;
 159
 160    pipe_mutex_lock( stw_dev->ctx_mutex );
 161    ctx->dhglrc = handle_table_add(stw_dev->ctx_table, ctx);
 162    pipe_mutex_unlock( stw_dev->ctx_mutex );
 163    if (!ctx->dhglrc)
 164       goto no_hglrc;
 165
 166    return ctx->dhglrc;
 167
 168 no_hglrc:
 169    ctx->st->destroy(ctx->st);
 170 no_st_ctx:
 171    FREE(ctx);
 172 no_ctx:
 173    return 0;
 174 }
 175
 176 BOOL APIENTRY
 177 DrvDeleteContext(
 178    DHGLRC dhglrc )
 179 {
 180    struct stw_context *ctx ;
 181    BOOL ret = FALSE;
 182
 183    if (!stw_dev)
 184       return FALSE;
 185
 186    pipe_mutex_lock( stw_dev->ctx_mutex );
 187    ctx = stw_lookup_context_locked(dhglrc);
 188    handle_table_remove(stw_dev->ctx_table, dhglrc);
 189    pipe_mutex_unlock( stw_dev->ctx_mutex );
 190
 191    if (ctx) {
 192       struct stw_context *curctx = stw_current_context();
 193
 194       /* Unbind current if deleting current context. */
 195       if (curctx == ctx)
 196          stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
 197
 198       ctx->st->destroy(ctx->st);
 199       FREE(ctx);
 200
 201       ret = TRUE;
 202    }
 203
 204    return ret;
 205 }
 206
 207 BOOL APIENTRY
 208 DrvReleaseContext(
 209    DHGLRC dhglrc )
 210 {
 211    struct stw_context *ctx;
 212
 213    if (!stw_dev)
 214       return FALSE;
 215
 216    pipe_mutex_lock( stw_dev->ctx_mutex );
 217    ctx = stw_lookup_context_locked( dhglrc );
 218    pipe_mutex_unlock( stw_dev->ctx_mutex );
 219
 220    if (!ctx)
 221       return FALSE;
 222
 223    /* The expectation is that ctx is the same context which is
 224     * current for this thread.  We should check that and return False
 225     * if not the case.
 226     */
 227    if (ctx != stw_current_context())
 228       return FALSE;
 229
 230    if (stw_make_current( NULL, 0 ) == FALSE)
 231       return FALSE;
 232
 233    return TRUE;
 234 }
 235
 236
 237 DHGLRC
 238 stw_get_current_context( void )
 239 {
 240    struct stw_context *ctx;
 241
 242    ctx = stw_current_context();
 243    if(!ctx)
 244       return 0;
 245
 246    return ctx->dhglrc;
 247 }
 248
 249 HDC
 250 stw_get_current_dc( void )
 251 {
 252    struct stw_context *ctx;
 253
 254    ctx = stw_current_context();
 255    if(!ctx)
 256       return NULL;
 257
 258    return ctx->hdc;
 259 }
 260
 261 BOOL
 262 stw_make_current(
 263    HDC hdc,
 264    DHGLRC dhglrc )
 265 {
 266    struct stw_context *curctx = NULL;
 267    struct stw_context *ctx = NULL;
 268    struct stw_framebuffer *fb = NULL;
 269
 270    if (!stw_dev)
 271       goto fail;
 272
 273    curctx = stw_current_context();
 274    if (curctx != NULL) {
 275       if (curctx->dhglrc != dhglrc)
 276          curctx->st->flush(curctx->st, PIPE_FLUSH_RENDER_CACHE, NULL);
 277
 278       /* Return if already current. */
 279       if (curctx->dhglrc == dhglrc && curctx->hdc == hdc) {
 280          ctx = curctx;
 281          fb = stw_framebuffer_from_hdc( hdc );
 282          goto success;
 283       }
 284
 285       stw_framebuffer_reference(&curctx->current_framebuffer, NULL);
 286    }
 287
 288    if (hdc == NULL || dhglrc == 0) {
 289       return stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
 290    }
 291
 292    pipe_mutex_lock( stw_dev->ctx_mutex );
 293    ctx = stw_lookup_context_locked( dhglrc );
 294    pipe_mutex_unlock( stw_dev->ctx_mutex );
 295    if(!ctx)
 296       goto fail;
 297
 298    fb = stw_framebuffer_from_hdc( hdc );
 299    if (fb) {
 300       stw_framebuffer_update(fb);
 301    }
 302    else {
 303       /* Applications should call SetPixelFormat before creating a context,
 304        * but not all do, and the opengl32 runtime seems to use a default pixel
 305        * format in some cases, so we must create a framebuffer for those here
 306        */
 307       int iPixelFormat = GetPixelFormat(hdc);
 308       if(iPixelFormat)
 309          fb = stw_framebuffer_create( hdc, iPixelFormat );
 310       if(!fb)
 311          goto fail;
 312    }
 313
 314    if(fb->iPixelFormat != ctx->iPixelFormat)
 315       goto fail;
 316
 317    /* Bind the new framebuffer */
 318    ctx->hdc = hdc;
 319
 320    if (!stw_dev->stapi->make_current(stw_dev->stapi, ctx->st, fb->stfb, fb->stfb))
 321       goto fail;
 322
 323    stw_framebuffer_reference(&ctx->current_framebuffer, fb);
 324
 325 success:
 326    assert(fb);
 327    if(fb) {
 328       stw_framebuffer_release(fb);
 329    }
 330
 331    return TRUE;
 332
 333 fail:
 334    if(fb)
 335       stw_framebuffer_release(fb);
 336    stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
 337    return FALSE;
 338 }
 339
 340 /**
 341  * Flush the current context if it is bound to the framebuffer.
 342  */
 343 void
 344 stw_flush_current_locked( struct stw_framebuffer *fb )
 345 {
 346    struct stw_context *ctx = stw_current_context();
 347
 348    if (ctx && ctx->current_framebuffer == fb) {
 349       ctx->st->flush(ctx->st,
 350             PIPE_FLUSH_RENDER_CACHE |
 351             PIPE_FLUSH_SWAPBUFFERS |
 352             PIPE_FLUSH_FRAME,
 353             NULL);
 354    }
 355 }
 356
 357 /**
 358  * Notify the current context that the framebuffer has become invalid.
 359  */
 360 void
 361 stw_notify_current_locked( struct stw_framebuffer *fb )
 362 {
 363    struct stw_context *ctx = stw_current_context();
 364
 365    if (ctx && ctx->current_framebuffer == fb)
 366       ctx->st->notify_invalid_framebuffer(ctx->st, fb->stfb);
 367 }
 368
 369 /**
 370  * Although WGL allows different dispatch entrypoints per context
 371  */
 372 static const GLCLTPROCTABLE cpt =
 373 {
 374    OPENGL_VERSION_110_ENTRIES,
 375    {
 376       &glNewList,
 377       &glEndList,
 378       &glCallList,
 379       &glCallLists,
 380       &glDeleteLists,
 381       &glGenLists,
 382       &glListBase,
 383       &glBegin,
 384       &glBitmap,
 385       &glColor3b,
 386       &glColor3bv,
 387       &glColor3d,
 388       &glColor3dv,
 389       &glColor3f,
 390       &glColor3fv,
 391       &glColor3i,
 392       &glColor3iv,
 393       &glColor3s,
 394       &glColor3sv,
 395       &glColor3ub,
 396       &glColor3ubv,
 397       &glColor3ui,
 398       &glColor3uiv,
 399       &glColor3us,
 400       &glColor3usv,
 401       &glColor4b,
 402       &glColor4bv,
 403       &glColor4d,
 404       &glColor4dv,
 405       &glColor4f,
 406       &glColor4fv,
 407       &glColor4i,
 408       &glColor4iv,
 409       &glColor4s,
 410       &glColor4sv,
 411       &glColor4ub,
 412       &glColor4ubv,
 413       &glColor4ui,
 414       &glColor4uiv,
 415       &glColor4us,
 416       &glColor4usv,
 417       &glEdgeFlag,
 418       &glEdgeFlagv,
 419       &glEnd,
 420       &glIndexd,
 421       &glIndexdv,
 422       &glIndexf,
 423       &glIndexfv,
 424       &glIndexi,
 425       &glIndexiv,
 426       &glIndexs,
 427       &glIndexsv,
 428       &glNormal3b,
 429       &glNormal3bv,
 430       &glNormal3d,
 431       &glNormal3dv,
 432       &glNormal3f,
 433       &glNormal3fv,
 434       &glNormal3i,
 435       &glNormal3iv,
 436       &glNormal3s,
 437       &glNormal3sv,
 438       &glRasterPos2d,
 439       &glRasterPos2dv,
 440       &glRasterPos2f,
 441       &glRasterPos2fv,
 442       &glRasterPos2i,
 443       &glRasterPos2iv,
 444       &glRasterPos2s,
 445       &glRasterPos2sv,
 446       &glRasterPos3d,
 447       &glRasterPos3dv,
 448       &glRasterPos3f,
 449       &glRasterPos3fv,
 450       &glRasterPos3i,
 451       &glRasterPos3iv,
 452       &glRasterPos3s,
 453       &glRasterPos3sv,
 454       &glRasterPos4d,
 455       &glRasterPos4dv,
 456       &glRasterPos4f,
 457       &glRasterPos4fv,
 458       &glRasterPos4i,
 459       &glRasterPos4iv,
 460       &glRasterPos4s,
 461       &glRasterPos4sv,
 462       &glRectd,
 463       &glRectdv,
 464       &glRectf,
 465       &glRectfv,
 466       &glRecti,
 467       &glRectiv,
 468       &glRects,
 469       &glRectsv,
 470       &glTexCoord1d,
 471       &glTexCoord1dv,
 472       &glTexCoord1f,
 473       &glTexCoord1fv,
 474       &glTexCoord1i,
 475       &glTexCoord1iv,
 476       &glTexCoord1s,
 477       &glTexCoord1sv,
 478       &glTexCoord2d,
 479       &glTexCoord2dv,
 480       &glTexCoord2f,
 481       &glTexCoord2fv,
 482       &glTexCoord2i,
 483       &glTexCoord2iv,
 484       &glTexCoord2s,
 485       &glTexCoord2sv,
 486       &glTexCoord3d,
 487       &glTexCoord3dv,
 488       &glTexCoord3f,
 489       &glTexCoord3fv,
 490       &glTexCoord3i,
 491       &glTexCoord3iv,
 492       &glTexCoord3s,
 493       &glTexCoord3sv,
 494       &glTexCoord4d,
 495       &glTexCoord4dv,
 496       &glTexCoord4f,
 497       &glTexCoord4fv,
 498       &glTexCoord4i,
 499       &glTexCoord4iv,
 500       &glTexCoord4s,
 501       &glTexCoord4sv,
 502       &glVertex2d,
 503       &glVertex2dv,
 504       &glVertex2f,
 505       &glVertex2fv,
 506       &glVertex2i,
 507       &glVertex2iv,
 508       &glVertex2s,
 509       &glVertex2sv,
 510       &glVertex3d,
 511       &glVertex3dv,
 512       &glVertex3f,
 513       &glVertex3fv,
 514       &glVertex3i,
 515       &glVertex3iv,
 516       &glVertex3s,
 517       &glVertex3sv,
 518       &glVertex4d,
 519       &glVertex4dv,
 520       &glVertex4f,
 521       &glVertex4fv,
 522       &glVertex4i,
 523       &glVertex4iv,
 524       &glVertex4s,
 525       &glVertex4sv,
 526       &glClipPlane,
 527       &glColorMaterial,
 528       &glCullFace,
 529       &glFogf,
 530       &glFogfv,
 531       &glFogi,
 532       &glFogiv,
 533       &glFrontFace,
 534       &glHint,
 535       &glLightf,
 536       &glLightfv,
 537       &glLighti,
 538       &glLightiv,
 539       &glLightModelf,
 540       &glLightModelfv,
 541       &glLightModeli,
 542       &glLightModeliv,
 543       &glLineStipple,
 544       &glLineWidth,
 545       &glMaterialf,
 546       &glMaterialfv,
 547       &glMateriali,
 548       &glMaterialiv,
 549       &glPointSize,
 550       &glPolygonMode,
 551       &glPolygonStipple,
 552       &glScissor,
 553       &glShadeModel,
 554       &glTexParameterf,
 555       &glTexParameterfv,
 556       &glTexParameteri,
 557       &glTexParameteriv,
 558       &glTexImage1D,
 559       &glTexImage2D,
 560       &glTexEnvf,
 561       &glTexEnvfv,
 562       &glTexEnvi,
 563       &glTexEnviv,
 564       &glTexGend,
 565       &glTexGendv,
 566       &glTexGenf,
 567       &glTexGenfv,
 568       &glTexGeni,
 569       &glTexGeniv,
 570       &glFeedbackBuffer,
 571       &glSelectBuffer,
 572       &glRenderMode,
 573       &glInitNames,
 574       &glLoadName,
 575       &glPassThrough,
 576       &glPopName,
 577       &glPushName,
 578       &glDrawBuffer,
 579       &glClear,
 580       &glClearAccum,
 581       &glClearIndex,
 582       &glClearColor,
 583       &glClearStencil,
 584       &glClearDepth,
 585       &glStencilMask,
 586       &glColorMask,
 587       &glDepthMask,
 588       &glIndexMask,
 589       &glAccum,
 590       &glDisable,
 591       &glEnable,
 592       &glFinish,
 593       &glFlush,
 594       &glPopAttrib,
 595       &glPushAttrib,
 596       &glMap1d,
 597       &glMap1f,
 598       &glMap2d,
 599       &glMap2f,
 600       &glMapGrid1d,
 601       &glMapGrid1f,
 602       &glMapGrid2d,
 603       &glMapGrid2f,
 604       &glEvalCoord1d,
 605       &glEvalCoord1dv,
 606       &glEvalCoord1f,
 607       &glEvalCoord1fv,
 608       &glEvalCoord2d,
 609       &glEvalCoord2dv,
 610       &glEvalCoord2f,
 611       &glEvalCoord2fv,
 612       &glEvalMesh1,
 613       &glEvalPoint1,
 614       &glEvalMesh2,
 615       &glEvalPoint2,
 616       &glAlphaFunc,
 617       &glBlendFunc,
 618       &glLogicOp,
 619       &glStencilFunc,
 620       &glStencilOp,
 621       &glDepthFunc,
 622       &glPixelZoom,
 623       &glPixelTransferf,
 624       &glPixelTransferi,
 625       &glPixelStoref,
 626       &glPixelStorei,
 627       &glPixelMapfv,
 628       &glPixelMapuiv,
 629       &glPixelMapusv,
 630       &glReadBuffer,
 631       &glCopyPixels,
 632       &glReadPixels,
 633       &glDrawPixels,
 634       &glGetBooleanv,
 635       &glGetClipPlane,
 636       &glGetDoublev,
 637       &glGetError,
 638       &glGetFloatv,
 639       &glGetIntegerv,
 640       &glGetLightfv,
 641       &glGetLightiv,
 642       &glGetMapdv,
 643       &glGetMapfv,
 644       &glGetMapiv,
 645       &glGetMaterialfv,
 646       &glGetMaterialiv,
 647       &glGetPixelMapfv,
 648       &glGetPixelMapuiv,
 649       &glGetPixelMapusv,
 650       &glGetPolygonStipple,
 651       &glGetString,
 652       &glGetTexEnvfv,
 653       &glGetTexEnviv,
 654       &glGetTexGendv,
 655       &glGetTexGenfv,
 656       &glGetTexGeniv,
 657       &glGetTexImage,
 658       &glGetTexParameterfv,
 659       &glGetTexParameteriv,
 660       &glGetTexLevelParameterfv,
 661       &glGetTexLevelParameteriv,
 662       &glIsEnabled,
 663       &glIsList,
 664       &glDepthRange,
 665       &glFrustum,
 666       &glLoadIdentity,
 667       &glLoadMatrixf,
 668       &glLoadMatrixd,
 669       &glMatrixMode,
 670       &glMultMatrixf,
 671       &glMultMatrixd,
 672       &glOrtho,
 673       &glPopMatrix,
 674       &glPushMatrix,
 675       &glRotated,
 676       &glRotatef,
 677       &glScaled,
 678       &glScalef,
 679       &glTranslated,
 680       &glTranslatef,
 681       &glViewport,
 682       &glArrayElement,
 683       &glBindTexture,
 684       &glColorPointer,
 685       &glDisableClientState,
 686       &glDrawArrays,
 687       &glDrawElements,
 688       &glEdgeFlagPointer,
 689       &glEnableClientState,
 690       &glIndexPointer,
 691       &glIndexub,
 692       &glIndexubv,
 693       &glInterleavedArrays,
 694       &glNormalPointer,
 695       &glPolygonOffset,
 696       &glTexCoordPointer,
 697       &glVertexPointer,
 698       &glAreTexturesResident,
 699       &glCopyTexImage1D,
 700       &glCopyTexImage2D,
 701       &glCopyTexSubImage1D,
 702       &glCopyTexSubImage2D,
 703       &glDeleteTextures,
 704       &glGenTextures,
 705       &glGetPointerv,
 706       &glIsTexture,
 707       &glPrioritizeTextures,
 708       &glTexSubImage1D,
 709       &glTexSubImage2D,
 710       &glPopClientAttrib,
 711       &glPushClientAttrib
 712    }
 713 };
 714
 715 PGLCLTPROCTABLE APIENTRY
 716 DrvSetContext(
 717    HDC hdc,
 718    DHGLRC dhglrc,
 719    PFN_SETPROCTABLE pfnSetProcTable )
 720 {
 721    PGLCLTPROCTABLE r = (PGLCLTPROCTABLE)&cpt;
 722
 723    if (!stw_make_current( hdc, dhglrc ))
 724       r = NULL;
 725
 726    return r;
 727 }