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 "pipe/p_state.h"
  33 #include "util/u_memory.h"
  34 #include "state_tracker/st_api.h"
  35
  36 #include "stw_icd.h"
  37 #include "stw_device.h"
  38 #include "stw_winsys.h"
  39 #include "stw_framebuffer.h"
  40 #include "stw_pixelformat.h"
  41 #include "stw_context.h"
  42 #include "stw_tls.h"
  43
  44
  45 static INLINE struct stw_context *
  46 stw_current_context(void)
  47 {
  48    struct st_context_iface *st;
  49
  50    st = (stw_dev) ? stw_dev->stapi->get_current(stw_dev->stapi) : NULL;
  51
  52    return (struct stw_context *) ((st) ? st->st_manager_private : NULL);
  53 }
  54
  55 BOOL APIENTRY
  56 DrvCopyContext(
  57    DHGLRC dhrcSource,
  58    DHGLRC dhrcDest,
  59    UINT fuMask )
  60 {
  61    struct stw_context *src;
  62    struct stw_context *dst;
  63    BOOL ret = FALSE;
  64
  65    if (!stw_dev)
  66       return FALSE;
  67
  68    pipe_mutex_lock( stw_dev->ctx_mutex );
  69
  70    src = stw_lookup_context_locked( dhrcSource );
  71    dst = stw_lookup_context_locked( dhrcDest );
  72
  73    if (src && dst) {
  74       /* FIXME */
  75       assert(0);
  76       (void) src;
  77       (void) dst;
  78       (void) fuMask;
  79    }
  80
  81    pipe_mutex_unlock( stw_dev->ctx_mutex );
  82
  83    return ret;
  84 }
  85
  86 BOOL APIENTRY
  87 DrvShareLists(
  88    DHGLRC dhglrc1,
  89    DHGLRC dhglrc2 )
  90 {
  91    struct stw_context *ctx1;
  92    struct stw_context *ctx2;
  93    BOOL ret = FALSE;
  94
  95    if (!stw_dev)
  96       return FALSE;
  97
  98    pipe_mutex_lock( stw_dev->ctx_mutex );
  99
 100    ctx1 = stw_lookup_context_locked( dhglrc1 );
 101    ctx2 = stw_lookup_context_locked( dhglrc2 );
 102
 103    if (ctx1 && ctx2 && ctx2->st->share)
 104       ret = ctx2->st->share(ctx2->st, ctx1->st);
 105
 106    pipe_mutex_unlock( stw_dev->ctx_mutex );
 107
 108    return ret;
 109 }
 110
 111 DHGLRC APIENTRY
 112 DrvCreateContext(
 113    HDC hdc )
 114 {
 115    return DrvCreateLayerContext( hdc, 0 );
 116 }
 117
 118 DHGLRC APIENTRY
 119 DrvCreateLayerContext(
 120    HDC hdc,
 121    INT iLayerPlane )
 122 {
 123    int iPixelFormat;
 124    const struct stw_pixelformat_info *pfi;
 125    struct st_context_attribs attribs;
 126    struct stw_context *ctx = NULL;
 127
 128    if(!stw_dev)
 129       return 0;
 130
 131    if (iLayerPlane != 0)
 132       return 0;
 133
 134    iPixelFormat = GetPixelFormat(hdc);
 135    if(!iPixelFormat)
 136       return 0;
 137
 138    pfi = stw_pixelformat_get_info( iPixelFormat - 1 );
 139
 140    ctx = CALLOC_STRUCT( stw_context );
 141    if (ctx == NULL)
 142       goto no_ctx;
 143
 144    ctx->hdc = hdc;
 145    ctx->iPixelFormat = iPixelFormat;
 146
 147    memset(&attribs, 0, sizeof(attribs));
 148    attribs.profile = ST_PROFILE_DEFAULT;
 149    attribs.visual = pfi->stvis;
 150
 151    ctx->st = stw_dev->stapi->create_context(stw_dev->stapi,
 152          stw_dev->smapi, &attribs, NULL);
 153    if (ctx->st == NULL)
 154       goto no_st_ctx;
 155
 156    ctx->st->st_manager_private = (void *) ctx;
 157
 158    pipe_mutex_lock( stw_dev->ctx_mutex );
 159    ctx->dhglrc = handle_table_add(stw_dev->ctx_table, ctx);
 160    pipe_mutex_unlock( stw_dev->ctx_mutex );
 161    if (!ctx->dhglrc)
 162       goto no_hglrc;
 163
 164    return ctx->dhglrc;
 165
 166 no_hglrc:
 167    ctx->st->destroy(ctx->st);
 168 no_st_ctx:
 169    FREE(ctx);
 170 no_ctx:
 171    return 0;
 172 }
 173
 174 BOOL APIENTRY
 175 DrvDeleteContext(
 176    DHGLRC dhglrc )
 177 {
 178    struct stw_context *ctx ;
 179    BOOL ret = FALSE;
 180
 181    if (!stw_dev)
 182       return FALSE;
 183
 184    pipe_mutex_lock( stw_dev->ctx_mutex );
 185    ctx = stw_lookup_context_locked(dhglrc);
 186    handle_table_remove(stw_dev->ctx_table, dhglrc);
 187    pipe_mutex_unlock( stw_dev->ctx_mutex );
 188
 189    if (ctx) {
 190       struct stw_context *curctx = stw_current_context();
 191
 192       /* Unbind current if deleting current context. */
 193       if (curctx == ctx)
 194          stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
 195
 196       ctx->st->destroy(ctx->st);
 197       FREE(ctx);
 198
 199       ret = TRUE;
 200    }
 201
 202    return ret;
 203 }
 204
 205 BOOL APIENTRY
 206 DrvReleaseContext(
 207    DHGLRC dhglrc )
 208 {
 209    struct stw_context *ctx;
 210
 211    if (!stw_dev)
 212       return FALSE;
 213
 214    pipe_mutex_lock( stw_dev->ctx_mutex );
 215    ctx = stw_lookup_context_locked( dhglrc );
 216    pipe_mutex_unlock( stw_dev->ctx_mutex );
 217
 218    if (!ctx)
 219       return FALSE;
 220
 221    /* The expectation is that ctx is the same context which is
 222     * current for this thread.  We should check that and return False
 223     * if not the case.
 224     */
 225    if (ctx != stw_current_context())
 226       return FALSE;
 227
 228    if (stw_make_current( NULL, 0 ) == FALSE)
 229       return FALSE;
 230
 231    return TRUE;
 232 }
 233
 234
 235 DHGLRC
 236 stw_get_current_context( void )
 237 {
 238    struct stw_context *ctx;
 239
 240    ctx = stw_current_context();
 241    if(!ctx)
 242       return 0;
 243
 244    return ctx->dhglrc;
 245 }
 246
 247 HDC
 248 stw_get_current_dc( void )
 249 {
 250    struct stw_context *ctx;
 251
 252    ctx = stw_current_context();
 253    if(!ctx)
 254       return NULL;
 255
 256    return ctx->hdc;
 257 }
 258
 259 BOOL
 260 stw_make_current(
 261    HDC hdc,
 262    DHGLRC dhglrc )
 263 {
 264    struct stw_context *curctx = NULL;
 265    struct stw_context *ctx = NULL;
 266    struct stw_framebuffer *fb = NULL;
 267    BOOL ret = FALSE;
 268
 269    if (!stw_dev)
 270       return FALSE;
 271
 272    curctx = stw_current_context();
 273    if (curctx != NULL) {
 274       if (curctx->dhglrc == dhglrc) {
 275          if (curctx->hdc == hdc) {
 276             /* Return if already current. */
 277             return TRUE;
 278          }
 279       } else {
 280          curctx->st->flush(curctx->st, ST_FLUSH_FRONT, NULL);
 281       }
 282    }
 283
 284    if (dhglrc) {
 285       pipe_mutex_lock( stw_dev->ctx_mutex );
 286       ctx = stw_lookup_context_locked( dhglrc );
 287       pipe_mutex_unlock( stw_dev->ctx_mutex );
 288       if (!ctx) {
 289          goto fail;
 290       }
 291
 292       fb = stw_framebuffer_from_hdc( hdc );
 293       if (fb) {
 294          stw_framebuffer_update(fb);
 295       }
 296       else {
 297          /* Applications should call SetPixelFormat before creating a context,
 298           * but not all do, and the opengl32 runtime seems to use a default pixel
 299           * format in some cases, so we must create a framebuffer for those here
 300           */
 301          int iPixelFormat = GetPixelFormat(hdc);
 302          if (iPixelFormat)
 303             fb = stw_framebuffer_create( hdc, iPixelFormat );
 304          if (!fb)
 305             goto fail;
 306       }
 307
 308       if (fb->iPixelFormat != ctx->iPixelFormat) {
 309          SetLastError(ERROR_INVALID_PIXEL_FORMAT);
 310          goto fail;
 311       }
 312
 313       /* Bind the new framebuffer */
 314       ctx->hdc = hdc;
 315
 316       ret = stw_dev->stapi->make_current(stw_dev->stapi, ctx->st, fb->stfb, fb->stfb);
 317       stw_framebuffer_reference(&ctx->current_framebuffer, fb);
 318    } else {
 319       ret = stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
 320    }
 321
 322 fail:
 323
 324    if (fb) {
 325       stw_framebuffer_release(fb);
 326    }
 327
 328    /* On failure, make the thread's current rendering context not current
 329     * before returning */
 330    if (!ret) {
 331       stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
 332       ctx = NULL;
 333    }
 334
 335    /* Unreference the previous framebuffer if any. It must be done after
 336     * make_current, as it can be referenced inside.
 337     */
 338    if (curctx && curctx != ctx) {
 339       stw_framebuffer_reference(&curctx->current_framebuffer, NULL);
 340    }
 341
 342    return ret;
 343 }
 344
 345 /**
 346  * Flush the current context if it is bound to the framebuffer.
 347  */
 348 void
 349 stw_flush_current_locked( struct stw_framebuffer *fb )
 350 {
 351    struct stw_context *ctx = stw_current_context();
 352
 353    if (ctx && ctx->current_framebuffer == fb) {
 354       ctx->st->flush(ctx->st, ST_FLUSH_FRONT, NULL);
 355    }
 356 }
 357
 358 /**
 359  * Notify the current context that the framebuffer has become invalid.
 360  */
 361 void
 362 stw_notify_current_locked( struct stw_framebuffer *fb )
 363 {
 364    struct stw_context *ctx = stw_current_context();
 365
 366    if (ctx && ctx->current_framebuffer == fb)
 367       ctx->st->notify_invalid_framebuffer(ctx->st, fb->stfb);
 368 }
 369
 370 /**
 371  * Although WGL allows different dispatch entrypoints per context
 372  */
 373 static const GLCLTPROCTABLE cpt =
 374 {
 375    OPENGL_VERSION_110_ENTRIES,
 376    {
 377       &glNewList,
 378       &glEndList,
 379       &glCallList,
 380       &glCallLists,
 381       &glDeleteLists,
 382       &glGenLists,
 383       &glListBase,
 384       &glBegin,
 385       &glBitmap,
 386       &glColor3b,
 387       &glColor3bv,
 388       &glColor3d,
 389       &glColor3dv,
 390       &glColor3f,
 391       &glColor3fv,
 392       &glColor3i,
 393       &glColor3iv,
 394       &glColor3s,
 395       &glColor3sv,
 396       &glColor3ub,
 397       &glColor3ubv,
 398       &glColor3ui,
 399       &glColor3uiv,
 400       &glColor3us,
 401       &glColor3usv,
 402       &glColor4b,
 403       &glColor4bv,
 404       &glColor4d,
 405       &glColor4dv,
 406       &glColor4f,
 407       &glColor4fv,
 408       &glColor4i,
 409       &glColor4iv,
 410       &glColor4s,
 411       &glColor4sv,
 412       &glColor4ub,
 413       &glColor4ubv,
 414       &glColor4ui,
 415       &glColor4uiv,
 416       &glColor4us,
 417       &glColor4usv,
 418       &glEdgeFlag,
 419       &glEdgeFlagv,
 420       &glEnd,
 421       &glIndexd,
 422       &glIndexdv,
 423       &glIndexf,
 424       &glIndexfv,
 425       &glIndexi,
 426       &glIndexiv,
 427       &glIndexs,
 428       &glIndexsv,
 429       &glNormal3b,
 430       &glNormal3bv,
 431       &glNormal3d,
 432       &glNormal3dv,
 433       &glNormal3f,
 434       &glNormal3fv,
 435       &glNormal3i,
 436       &glNormal3iv,
 437       &glNormal3s,
 438       &glNormal3sv,
 439       &glRasterPos2d,
 440       &glRasterPos2dv,
 441       &glRasterPos2f,
 442       &glRasterPos2fv,
 443       &glRasterPos2i,
 444       &glRasterPos2iv,
 445       &glRasterPos2s,
 446       &glRasterPos2sv,
 447       &glRasterPos3d,
 448       &glRasterPos3dv,
 449       &glRasterPos3f,
 450       &glRasterPos3fv,
 451       &glRasterPos3i,
 452       &glRasterPos3iv,
 453       &glRasterPos3s,
 454       &glRasterPos3sv,
 455       &glRasterPos4d,
 456       &glRasterPos4dv,
 457       &glRasterPos4f,
 458       &glRasterPos4fv,
 459       &glRasterPos4i,
 460       &glRasterPos4iv,
 461       &glRasterPos4s,
 462       &glRasterPos4sv,
 463       &glRectd,
 464       &glRectdv,
 465       &glRectf,
 466       &glRectfv,
 467       &glRecti,
 468       &glRectiv,
 469       &glRects,
 470       &glRectsv,
 471       &glTexCoord1d,
 472       &glTexCoord1dv,
 473       &glTexCoord1f,
 474       &glTexCoord1fv,
 475       &glTexCoord1i,
 476       &glTexCoord1iv,
 477       &glTexCoord1s,
 478       &glTexCoord1sv,
 479       &glTexCoord2d,
 480       &glTexCoord2dv,
 481       &glTexCoord2f,
 482       &glTexCoord2fv,
 483       &glTexCoord2i,
 484       &glTexCoord2iv,
 485       &glTexCoord2s,
 486       &glTexCoord2sv,
 487       &glTexCoord3d,
 488       &glTexCoord3dv,
 489       &glTexCoord3f,
 490       &glTexCoord3fv,
 491       &glTexCoord3i,
 492       &glTexCoord3iv,
 493       &glTexCoord3s,
 494       &glTexCoord3sv,
 495       &glTexCoord4d,
 496       &glTexCoord4dv,
 497       &glTexCoord4f,
 498       &glTexCoord4fv,
 499       &glTexCoord4i,
 500       &glTexCoord4iv,
 501       &glTexCoord4s,
 502       &glTexCoord4sv,
 503       &glVertex2d,
 504       &glVertex2dv,
 505       &glVertex2f,
 506       &glVertex2fv,
 507       &glVertex2i,
 508       &glVertex2iv,
 509       &glVertex2s,
 510       &glVertex2sv,
 511       &glVertex3d,
 512       &glVertex3dv,
 513       &glVertex3f,
 514       &glVertex3fv,
 515       &glVertex3i,
 516       &glVertex3iv,
 517       &glVertex3s,
 518       &glVertex3sv,
 519       &glVertex4d,
 520       &glVertex4dv,
 521       &glVertex4f,
 522       &glVertex4fv,
 523       &glVertex4i,
 524       &glVertex4iv,
 525       &glVertex4s,
 526       &glVertex4sv,
 527       &glClipPlane,
 528       &glColorMaterial,
 529       &glCullFace,
 530       &glFogf,
 531       &glFogfv,
 532       &glFogi,
 533       &glFogiv,
 534       &glFrontFace,
 535       &glHint,
 536       &glLightf,
 537       &glLightfv,
 538       &glLighti,
 539       &glLightiv,
 540       &glLightModelf,
 541       &glLightModelfv,
 542       &glLightModeli,
 543       &glLightModeliv,
 544       &glLineStipple,
 545       &glLineWidth,
 546       &glMaterialf,
 547       &glMaterialfv,
 548       &glMateriali,
 549       &glMaterialiv,
 550       &glPointSize,
 551       &glPolygonMode,
 552       &glPolygonStipple,
 553       &glScissor,
 554       &glShadeModel,
 555       &glTexParameterf,
 556       &glTexParameterfv,
 557       &glTexParameteri,
 558       &glTexParameteriv,
 559       &glTexImage1D,
 560       &glTexImage2D,
 561       &glTexEnvf,
 562       &glTexEnvfv,
 563       &glTexEnvi,
 564       &glTexEnviv,
 565       &glTexGend,
 566       &glTexGendv,
 567       &glTexGenf,
 568       &glTexGenfv,
 569       &glTexGeni,
 570       &glTexGeniv,
 571       &glFeedbackBuffer,
 572       &glSelectBuffer,
 573       &glRenderMode,
 574       &glInitNames,
 575       &glLoadName,
 576       &glPassThrough,
 577       &glPopName,
 578       &glPushName,
 579       &glDrawBuffer,
 580       &glClear,
 581       &glClearAccum,
 582       &glClearIndex,
 583       &glClearColor,
 584       &glClearStencil,
 585       &glClearDepth,
 586       &glStencilMask,
 587       &glColorMask,
 588       &glDepthMask,
 589       &glIndexMask,
 590       &glAccum,
 591       &glDisable,
 592       &glEnable,
 593       &glFinish,
 594       &glFlush,
 595       &glPopAttrib,
 596       &glPushAttrib,
 597       &glMap1d,
 598       &glMap1f,
 599       &glMap2d,
 600       &glMap2f,
 601       &glMapGrid1d,
 602       &glMapGrid1f,
 603       &glMapGrid2d,
 604       &glMapGrid2f,
 605       &glEvalCoord1d,
 606       &glEvalCoord1dv,
 607       &glEvalCoord1f,
 608       &glEvalCoord1fv,
 609       &glEvalCoord2d,
 610       &glEvalCoord2dv,
 611       &glEvalCoord2f,
 612       &glEvalCoord2fv,
 613       &glEvalMesh1,
 614       &glEvalPoint1,
 615       &glEvalMesh2,
 616       &glEvalPoint2,
 617       &glAlphaFunc,
 618       &glBlendFunc,
 619       &glLogicOp,
 620       &glStencilFunc,
 621       &glStencilOp,
 622       &glDepthFunc,
 623       &glPixelZoom,
 624       &glPixelTransferf,
 625       &glPixelTransferi,
 626       &glPixelStoref,
 627       &glPixelStorei,
 628       &glPixelMapfv,
 629       &glPixelMapuiv,
 630       &glPixelMapusv,
 631       &glReadBuffer,
 632       &glCopyPixels,
 633       &glReadPixels,
 634       &glDrawPixels,
 635       &glGetBooleanv,
 636       &glGetClipPlane,
 637       &glGetDoublev,
 638       &glGetError,
 639       &glGetFloatv,
 640       &glGetIntegerv,
 641       &glGetLightfv,
 642       &glGetLightiv,
 643       &glGetMapdv,
 644       &glGetMapfv,
 645       &glGetMapiv,
 646       &glGetMaterialfv,
 647       &glGetMaterialiv,
 648       &glGetPixelMapfv,
 649       &glGetPixelMapuiv,
 650       &glGetPixelMapusv,
 651       &glGetPolygonStipple,
 652       &glGetString,
 653       &glGetTexEnvfv,
 654       &glGetTexEnviv,
 655       &glGetTexGendv,
 656       &glGetTexGenfv,
 657       &glGetTexGeniv,
 658       &glGetTexImage,
 659       &glGetTexParameterfv,
 660       &glGetTexParameteriv,
 661       &glGetTexLevelParameterfv,
 662       &glGetTexLevelParameteriv,
 663       &glIsEnabled,
 664       &glIsList,
 665       &glDepthRange,
 666       &glFrustum,
 667       &glLoadIdentity,
 668       &glLoadMatrixf,
 669       &glLoadMatrixd,
 670       &glMatrixMode,
 671       &glMultMatrixf,
 672       &glMultMatrixd,
 673       &glOrtho,
 674       &glPopMatrix,
 675       &glPushMatrix,
 676       &glRotated,
 677       &glRotatef,
 678       &glScaled,
 679       &glScalef,
 680       &glTranslated,
 681       &glTranslatef,
 682       &glViewport,
 683       &glArrayElement,
 684       &glBindTexture,
 685       &glColorPointer,
 686       &glDisableClientState,
 687       &glDrawArrays,
 688       &glDrawElements,
 689       &glEdgeFlagPointer,
 690       &glEnableClientState,
 691       &glIndexPointer,
 692       &glIndexub,
 693       &glIndexubv,
 694       &glInterleavedArrays,
 695       &glNormalPointer,
 696       &glPolygonOffset,
 697       &glTexCoordPointer,
 698       &glVertexPointer,
 699       &glAreTexturesResident,
 700       &glCopyTexImage1D,
 701       &glCopyTexImage2D,
 702       &glCopyTexSubImage1D,
 703       &glCopyTexSubImage2D,
 704       &glDeleteTextures,
 705       &glGenTextures,
 706       &glGetPointerv,
 707       &glIsTexture,
 708       &glPrioritizeTextures,
 709       &glTexSubImage1D,
 710       &glTexSubImage2D,
 711       &glPopClientAttrib,
 712       &glPushClientAttrib
 713    }
 714 };
 715
 716 PGLCLTPROCTABLE APIENTRY
 717 DrvSetContext(
 718    HDC hdc,
 719    DHGLRC dhglrc,
 720    PFN_SETPROCTABLE pfnSetProcTable )
 721 {
 722    PGLCLTPROCTABLE r = (PGLCLTPROCTABLE)&cpt;
 723
 724    if (!stw_make_current( hdc, dhglrc ))
 725       r = NULL;
 726
 727    return r;
 728 }