git.oblomov.eu Git - wine/blob - dlls/wined3d/context.c

   1 /*
   2  * Context and render target management in wined3d
   3  *
   4  * Copyright 2007 Stefan Dösinger for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include <stdio.h>
  23 #ifdef HAVE_FLOAT_H
  24 # include <float.h>
  25 #endif
  26 #include "wined3d_private.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
  29
  30 #define GLINFO_LOCATION This->adapter->gl_info
  31
  32 /*****************************************************************************
  33  * Context_MarkStateDirty
  34  *
  35  * Marks a state in a context dirty. Only one context, opposed to
  36  * IWineD3DDeviceImpl_MarkStateDirty, which marks the state dirty in all
  37  * contexts
  38  *
  39  * Params:
  40  *  context: Context to mark the state dirty in
  41  *  state: State to mark dirty
  42  *
  43  *****************************************************************************/
  44 static void Context_MarkStateDirty(WineD3DContext *context, DWORD state) {
  45     DWORD rep = StateTable[state].representative;
  46     DWORD idx;
  47     BYTE shift;
  48
  49     if(!rep || isStateDirty(context, rep)) return;
  50
  51     context->dirtyArray[context->numDirtyEntries++] = rep;
  52     idx = rep >> 5;
  53     shift = rep & 0x1f;
  54     context->isStateDirty[idx] |= (1 << shift);
  55 }
  56
  57 /*****************************************************************************
  58  * AddContextToArray
  59  *
  60  * Adds a context to the context array. Helper function for CreateContext
  61  *
  62  * This method is not called in performance-critical code paths, only when a
  63  * new render target or swapchain is created. Thus performance is not an issue
  64  * here.
  65  *
  66  * Params:
  67  *  This: Device to add the context for
  68  *  hdc: device context
  69  *  glCtx: WGL context to add
  70  *  pbuffer: optional pbuffer used with this context
  71  *
  72  *****************************************************************************/
  73 static WineD3DContext *AddContextToArray(IWineD3DDeviceImpl *This, HWND win_handle, HDC hdc, HGLRC glCtx, HPBUFFERARB pbuffer) {
  74     WineD3DContext **oldArray = This->contexts;
  75     DWORD state;
  76
  77     This->contexts = HeapAlloc(GetProcessHeap(), 0, sizeof(*This->contexts) * (This->numContexts + 1));
  78     if(This->contexts == NULL) {
  79         ERR("Unable to grow the context array\n");
  80         This->contexts = oldArray;
  81         return NULL;
  82     }
  83     if(oldArray) {
  84         memcpy(This->contexts, oldArray, sizeof(*This->contexts) * This->numContexts);
  85     }
  86
  87     This->contexts[This->numContexts] = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WineD3DContext));
  88     if(This->contexts[This->numContexts] == NULL) {
  89         ERR("Unable to allocate a new context\n");
  90         HeapFree(GetProcessHeap(), 0, This->contexts);
  91         This->contexts = oldArray;
  92         return NULL;
  93     }
  94
  95     This->contexts[This->numContexts]->hdc = hdc;
  96     This->contexts[This->numContexts]->glCtx = glCtx;
  97     This->contexts[This->numContexts]->pbuffer = pbuffer;
  98     This->contexts[This->numContexts]->win_handle = win_handle;
  99     HeapFree(GetProcessHeap(), 0, oldArray);
 100
 101     /* Mark all states dirty to force a proper initialization of the states on the first use of the context
 102      */
 103     for(state = 0; state <= STATE_HIGHEST; state++) {
 104         Context_MarkStateDirty(This->contexts[This->numContexts], state);
 105     }
 106
 107     This->numContexts++;
 108     TRACE("Created context %p\n", This->contexts[This->numContexts - 1]);
 109     return This->contexts[This->numContexts - 1];
 110 }
 111
 112 /*****************************************************************************
 113  * CreateContext
 114  *
 115  * Creates a new context for a window, or a pbuffer context.
 116  *
 117  * * Params:
 118  *  This: Device to activate the context for
 119  *  target: Surface this context will render to
 120  *  win_handle: handle to the window which we are drawing to
 121  *  create_pbuffer: tells whether to create a pbuffer or not
 122  *  pPresentParameters: contains the pixelformats to use for onscreen rendering
 123  *
 124  *****************************************************************************/
 125 WineD3DContext *CreateContext(IWineD3DDeviceImpl *This, IWineD3DSurfaceImpl *target, HWND win_handle, BOOL create_pbuffer, const WINED3DPRESENT_PARAMETERS *pPresentParms) {
 126     HDC oldDrawable, hdc;
 127     HPBUFFERARB pbuffer = NULL;
 128     HGLRC ctx = NULL, oldCtx;
 129     WineD3DContext *ret = NULL;
 130     int s;
 131
 132     TRACE("(%p): Creating a %s context for render target %p\n", This, create_pbuffer ? "offscreen" : "onscreen", target);
 133
 134 #define PUSH1(att)        attribs[nAttribs++] = (att);
 135 #define PUSH2(att,value)  attribs[nAttribs++] = (att); attribs[nAttribs++] = (value);
 136     if(create_pbuffer) {
 137         HDC hdc_parent = GetDC(win_handle);
 138         int iPixelFormat = 0;
 139         short redBits, greenBits, blueBits, alphaBits, colorBits;
 140         short depthBits, stencilBits;
 141
 142         IWineD3DSurface *StencilSurface = This->stencilBufferTarget;
 143         WINED3DFORMAT StencilBufferFormat = (NULL != StencilSurface) ? ((IWineD3DSurfaceImpl *) StencilSurface)->resource.format : 0;
 144
 145         int attribs[256];
 146         int nAttribs = 0;
 147         unsigned int nFormats;
 148
 149         /* Retrieve the specifications for the pixelformat from the backbuffer / stencilbuffer */
 150         getColorBits(target->resource.format, &redBits, &greenBits, &blueBits, &alphaBits, &colorBits);
 151         getDepthStencilBits(StencilBufferFormat, &depthBits, &stencilBits);
 152         PUSH2(WGL_DRAW_TO_PBUFFER_ARB, 1); /* We need pbuffer support; doublebuffering isn't needed */
 153         PUSH2(WGL_PIXEL_TYPE_ARB, WGL_TYPE_RGBA_ARB); /* Make sure we don't get a float or color index format */
 154         PUSH2(WGL_COLOR_BITS_ARB, colorBits);
 155         PUSH2(WGL_RED_BITS_ARB, redBits);
 156         PUSH2(WGL_GREEN_BITS_ARB, greenBits);
 157         PUSH2(WGL_BLUE_BITS_ARB, blueBits);
 158         PUSH2(WGL_ALPHA_BITS_ARB, alphaBits);
 159         PUSH2(WGL_DEPTH_BITS_ARB, depthBits);
 160         PUSH2(WGL_STENCIL_BITS_ARB, stencilBits);
 161         PUSH1(0); /* end the list */
 162
 163         /* Try to find a pixelformat that matches exactly. If that fails let ChoosePixelFormat try to find a close match */
 164         if(!GL_EXTCALL(wglChoosePixelFormatARB(hdc_parent, (const int*)&attribs, NULL, 1, &iPixelFormat, &nFormats)))
 165         {
 166             PIXELFORMATDESCRIPTOR pfd;
 167
 168             TRACE("Falling back to ChoosePixelFormat as wglChoosePixelFormatARB failed\n");
 169
 170             ZeroMemory(&pfd, sizeof(pfd));
 171             pfd.nSize      = sizeof(pfd);
 172             pfd.nVersion   = 1;
 173             pfd.dwFlags    = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER_DONTCARE | PFD_DRAW_TO_WINDOW;
 174             pfd.iPixelType = PFD_TYPE_RGBA;
 175             pfd.cColorBits = colorBits;
 176             pfd.cDepthBits = depthBits;
 177             pfd.cStencilBits = stencilBits;
 178             pfd.iLayerType = PFD_MAIN_PLANE;
 179
 180             iPixelFormat = ChoosePixelFormat(hdc_parent, &pfd);
 181             if(!iPixelFormat) {
 182                 /* If this happens something is very wrong as ChoosePixelFormat barely fails */
 183                 ERR("Can't find a suitable iPixelFormat for the pbuffer\n");
 184             }
 185         }
 186
 187         TRACE("Creating a pBuffer drawable for the new context\n");
 188         pbuffer = GL_EXTCALL(wglCreatePbufferARB(hdc_parent, iPixelFormat, target->currentDesc.Width, target->currentDesc.Height, 0));
 189         if(!pbuffer) {
 190             ERR("Cannot create a pbuffer\n");
 191             ReleaseDC(win_handle, hdc_parent);
 192             goto out;
 193         }
 194
 195         /* In WGL a pbuffer is 'wrapped' inside a HDC to 'fool' wglMakeCurrent */
 196         hdc = GL_EXTCALL(wglGetPbufferDCARB(pbuffer));
 197         if(!hdc) {
 198             ERR("Cannot get a HDC for pbuffer (%p)\n", pbuffer);
 199             GL_EXTCALL(wglDestroyPbufferARB(pbuffer));
 200             ReleaseDC(win_handle, hdc_parent);
 201             goto out;
 202         }
 203         ReleaseDC(win_handle, hdc_parent);
 204     } else {
 205         PIXELFORMATDESCRIPTOR pfd;
 206         int iPixelFormat;
 207         short redBits, greenBits, blueBits, alphaBits, colorBits;
 208         short depthBits=0, stencilBits=0;
 209         int res;
 210         int attribs[256];
 211         int nAttribs = 0;
 212         unsigned int nFormats;
 213         WINED3DFORMAT fmt = target->resource.format;
 214
 215         hdc = GetDC(win_handle);
 216         if(hdc == NULL) {
 217             ERR("Cannot retrieve a device context!\n");
 218             goto out;
 219         }
 220
 221         /* PixelFormat selection */
 222         PUSH2(WGL_DRAW_TO_WINDOW_ARB, GL_TRUE); /* We want to draw to a window */
 223         PUSH2(WGL_DOUBLE_BUFFER_ARB, GL_TRUE);
 224         PUSH2(WGL_PIXEL_TYPE_ARB, WGL_TYPE_RGBA_ARB); /* Make sure we don't get a float or color index format */
 225         PUSH2(WGL_SUPPORT_OPENGL_ARB, GL_TRUE);
 226         PUSH2(WGL_ACCELERATION_ARB, WGL_FULL_ACCELERATION_ARB); /* Make sure we receive an accelerated format. On windows (at least on ATI) this is not always the case */
 227
 228         /* In case of ORM_BACKBUFFER, make sure to request an alpha component for X4R4G4B4/X8R8G8B8 as we might need it for the backbuffer. */
 229         if(wined3d_settings.offscreen_rendering_mode == ORM_BACKBUFFER) {
 230             if(target->resource.format == WINED3DFMT_X4R4G4B4)
 231                 fmt = WINED3DFMT_A4R4G4B4;
 232             else if(target->resource.format == WINED3DFMT_X8R8G8B8)
 233                 fmt = WINED3DFMT_A8R8G8B8;
 234
 235             /* We like to have two aux buffers in backbuffer mode */
 236             PUSH2(WGL_AUX_BUFFERS_ARB, 2);
 237         }
 238
 239         if(!getColorBits(fmt, &redBits, &greenBits, &blueBits, &alphaBits, &colorBits)) {
 240             ERR("Unable to get color bits for format %#x!\n", target->resource.format);
 241             return FALSE;
 242         }
 243         PUSH2(WGL_COLOR_BITS_ARB, colorBits);
 244         PUSH2(WGL_RED_BITS_ARB, redBits);
 245         PUSH2(WGL_GREEN_BITS_ARB, greenBits);
 246         PUSH2(WGL_BLUE_BITS_ARB, blueBits);
 247         PUSH2(WGL_ALPHA_BITS_ARB, alphaBits);
 248
 249         /* Retrieve the depth stencil format from the present parameters.
 250          * The choice of the proper format can give a nice performance boost
 251          * in case of GPU limited programs. */
 252         if(pPresentParms->EnableAutoDepthStencil) {
 253             TRACE("pPresentParms->EnableAutoDepthStencil=enabled; using AutoDepthStencilFormat=%s\n", debug_d3dformat(pPresentParms->AutoDepthStencilFormat));
 254             if(!getDepthStencilBits(pPresentParms->AutoDepthStencilFormat, &depthBits, &stencilBits)) {
 255                 ERR("Unable to get depth / stencil bits for AutoDepthStencilFormat %#x!\n", pPresentParms->AutoDepthStencilFormat);
 256                 return FALSE;
 257             }
 258             PUSH2(WGL_DEPTH_BITS_ARB, depthBits);
 259             PUSH2(WGL_STENCIL_BITS_ARB, stencilBits);
 260         }
 261
 262         PUSH1(0); /* end the list */
 263
 264         /* In case of failure hope that standard ChoosePixelFormat will find something suitable */
 265         if(!GL_EXTCALL(wglChoosePixelFormatARB(hdc, (const int*)&attribs, NULL, 1, &iPixelFormat, &nFormats)))
 266         {
 267             /* PixelFormat selection */
 268             ZeroMemory(&pfd, sizeof(pfd));
 269             pfd.nSize      = sizeof(pfd);
 270             pfd.nVersion   = 1;
 271             pfd.dwFlags    = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW;/*PFD_GENERIC_ACCELERATED*/
 272             pfd.iPixelType = PFD_TYPE_RGBA;
 273             pfd.cAlphaBits = alphaBits;
 274             pfd.cColorBits = colorBits;
 275             pfd.cDepthBits = depthBits;
 276             pfd.cStencilBits = stencilBits;
 277             pfd.iLayerType = PFD_MAIN_PLANE;
 278
 279             iPixelFormat = ChoosePixelFormat(hdc, &pfd);
 280             if(!iPixelFormat) {
 281                 /* If this happens something is very wrong as ChoosePixelFormat barely fails */
 282                 ERR("Can't find a suitable iPixelFormat\n");
 283             }
 284         }
 285
 286         DescribePixelFormat(hdc, iPixelFormat, sizeof(pfd), &pfd);
 287         res = SetPixelFormat(hdc, iPixelFormat, NULL);
 288         if(!res) {
 289             int oldPixelFormat = GetPixelFormat(hdc);
 290
 291             if(oldPixelFormat) {
 292                 /* OpenGL doesn't allow pixel format adjustments. Print an error and continue using the old format.
 293                  * There's a big chance that the old format works although with a performance hit and perhaps rendering errors. */
 294                 ERR("HDC=%p is already set to iPixelFormat=%d and OpenGL doesn't allow changes!\n", hdc, oldPixelFormat);
 295             }
 296             else {
 297                 ERR("SetPixelFormat failed on HDC=%p for iPixelFormat=%d\n", hdc, iPixelFormat);
 298                 return FALSE;
 299             }
 300         }
 301     }
 302 #undef PUSH1
 303 #undef PUSH2
 304
 305     ctx = pwglCreateContext(hdc);
 306     if(This->numContexts) pwglShareLists(This->contexts[0]->glCtx, ctx);
 307
 308     if(!ctx) {
 309         ERR("Failed to create a WGL context\n");
 310         if(create_pbuffer) {
 311             GL_EXTCALL(wglReleasePbufferDCARB(pbuffer, hdc));
 312             GL_EXTCALL(wglDestroyPbufferARB(pbuffer));
 313         }
 314         goto out;
 315     }
 316     ret = AddContextToArray(This, win_handle, hdc, ctx, pbuffer);
 317     if(!ret) {
 318         ERR("Failed to add the newly created context to the context list\n");
 319         pwglDeleteContext(ctx);
 320         if(create_pbuffer) {
 321             GL_EXTCALL(wglReleasePbufferDCARB(pbuffer, hdc));
 322             GL_EXTCALL(wglDestroyPbufferARB(pbuffer));
 323         }
 324         goto out;
 325     }
 326     ret->surface = (IWineD3DSurface *) target;
 327     ret->isPBuffer = create_pbuffer;
 328     ret->tid = GetCurrentThreadId();
 329     if(This->shader_backend->shader_dirtifyable_constants((IWineD3DDevice *) This)) {
 330         /* Create the dirty constants array and initialize them to dirty */
 331         ret->vshader_const_dirty = HeapAlloc(GetProcessHeap(), 0,
 332                 sizeof(*ret->vshader_const_dirty) * GL_LIMITS(vshader_constantsF));
 333         ret->pshader_const_dirty = HeapAlloc(GetProcessHeap(), 0,
 334                 sizeof(*ret->pshader_const_dirty) * GL_LIMITS(pshader_constantsF));
 335         memset(ret->vshader_const_dirty, 1,
 336                sizeof(*ret->vshader_const_dirty) * GL_LIMITS(vshader_constantsF));
 337         memset(ret->pshader_const_dirty, 1,
 338                 sizeof(*ret->pshader_const_dirty) * GL_LIMITS(pshader_constantsF));
 339     }
 340
 341     TRACE("Successfully created new context %p\n", ret);
 342
 343     /* Set up the context defaults */
 344     oldCtx  = pwglGetCurrentContext();
 345     oldDrawable = pwglGetCurrentDC();
 346     if(pwglMakeCurrent(hdc, ctx) == FALSE) {
 347         ERR("Cannot activate context to set up defaults\n");
 348         goto out;
 349     }
 350
 351     ENTER_GL();
 352     TRACE("Setting up the screen\n");
 353     /* Clear the screen */
 354     glClearColor(1.0, 0.0, 0.0, 0.0);
 355     checkGLcall("glClearColor");
 356     glClearIndex(0);
 357     glClearDepth(1);
 358     glClearStencil(0xffff);
 359
 360     checkGLcall("glClear");
 361
 362     glColor3f(1.0, 1.0, 1.0);
 363     checkGLcall("glColor3f");
 364
 365     glEnable(GL_LIGHTING);
 366     checkGLcall("glEnable");
 367
 368     glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
 369     checkGLcall("glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);");
 370
 371     glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
 372     checkGLcall("glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);");
 373
 374     glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
 375     checkGLcall("glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);");
 376
 377     glPixelStorei(GL_PACK_ALIGNMENT, This->surface_alignment);
 378     checkGLcall("glPixelStorei(GL_PACK_ALIGNMENT, This->surface_alignment);");
 379     glPixelStorei(GL_UNPACK_ALIGNMENT, This->surface_alignment);
 380     checkGLcall("glPixelStorei(GL_UNPACK_ALIGNMENT, This->surface_alignment);");
 381
 382     if(GL_SUPPORT(APPLE_CLIENT_STORAGE)) {
 383         /* Most textures will use client storage if supported. Exceptions are non-native power of 2 textures
 384          * and textures in DIB sections(due to the memory protection).
 385          */
 386         glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE);
 387         checkGLcall("glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE)");
 388     }
 389     if(GL_SUPPORT(ARB_VERTEX_BLEND)) {
 390         /* Direct3D always uses n-1 weights for n world matrices and uses 1 - sum for the last one
 391          * this is equal to GL_WEIGHT_SUM_UNITY_ARB. Enabling it doesn't do anything unless
 392          * GL_VERTEX_BLEND_ARB isn't enabled too
 393          */
 394         glEnable(GL_WEIGHT_SUM_UNITY_ARB);
 395         checkGLcall("glEnable(GL_WEIGHT_SUM_UNITY_ARB)");
 396     }
 397     if(GL_SUPPORT(NV_TEXTURE_SHADER2)) {
 398         glEnable(GL_TEXTURE_SHADER_NV);
 399         checkGLcall("glEnable(GL_TEXTURE_SHADER_NV)");
 400
 401         /* Set up the previous texture input for all shader units. This applies to bump mapping, and in d3d
 402          * the previous texture where to source the offset from is always unit - 1.
 403          */
 404         for(s = 1; s < GL_LIMITS(textures); s++) {
 405             GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + s));
 406             glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB + s - 1);
 407             checkGLcall("glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, ...\n");
 408         }
 409     }
 410     if(GL_SUPPORT(ARB_POINT_SPRITE)) {
 411         for(s = 0; s < GL_LIMITS(textures); s++) {
 412             GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + s));
 413             glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE);
 414             checkGLcall("glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE)\n");
 415         }
 416     }
 417     LEAVE_GL();
 418
 419     if(oldDrawable && oldCtx) {
 420         pwglMakeCurrent(oldDrawable, oldCtx);
 421     }
 422
 423 out:
 424     return ret;
 425 }
 426
 427 /*****************************************************************************
 428  * RemoveContextFromArray
 429  *
 430  * Removes a context from the context manager. The opengl context is not
 431  * destroyed or unset. context is not a valid pointer after that call.
 432  *
 433  * Similar to the former call this isn't a performance critical function. A
 434  * helper function for DestroyContext.
 435  *
 436  * Params:
 437  *  This: Device to activate the context for
 438  *  context: Context to remove
 439  *
 440  *****************************************************************************/
 441 static void RemoveContextFromArray(IWineD3DDeviceImpl *This, WineD3DContext *context) {
 442     UINT t, s;
 443     WineD3DContext **oldArray = This->contexts;
 444
 445     TRACE("Removing ctx %p\n", context);
 446
 447     This->numContexts--;
 448
 449     if(This->numContexts) {
 450         This->contexts = HeapAlloc(GetProcessHeap(), 0, sizeof(*This->contexts) * This->numContexts);
 451         if(!This->contexts) {
 452             ERR("Cannot allocate a new context array, PANIC!!!\n");
 453         }
 454         t = 0;
 455         for(s = 0; s < This->numContexts; s++) {
 456             if(oldArray[s] == context) continue;
 457             This->contexts[t] = oldArray[s];
 458             t++;
 459         }
 460     } else {
 461         This->contexts = NULL;
 462     }
 463
 464     HeapFree(GetProcessHeap(), 0, context);
 465     HeapFree(GetProcessHeap(), 0, oldArray);
 466 }
 467
 468 /*****************************************************************************
 469  * DestroyContext
 470  *
 471  * Destroys a wineD3DContext
 472  *
 473  * Params:
 474  *  This: Device to activate the context for
 475  *  context: Context to destroy
 476  *
 477  *****************************************************************************/
 478 void DestroyContext(IWineD3DDeviceImpl *This, WineD3DContext *context) {
 479
 480     /* check that we are the current context first */
 481     TRACE("Destroying ctx %p\n", context);
 482     if(pwglGetCurrentContext() == context->glCtx){
 483         pwglMakeCurrent(NULL, NULL);
 484     }
 485
 486     if(context->isPBuffer) {
 487         GL_EXTCALL(wglReleasePbufferDCARB(context->pbuffer, context->hdc));
 488         GL_EXTCALL(wglDestroyPbufferARB(context->pbuffer));
 489     } else ReleaseDC(context->win_handle, context->hdc);
 490     pwglDeleteContext(context->glCtx);
 491
 492     HeapFree(GetProcessHeap(), 0, context->vshader_const_dirty);
 493     HeapFree(GetProcessHeap(), 0, context->pshader_const_dirty);
 494     RemoveContextFromArray(This, context);
 495 }
 496
 497 /*****************************************************************************
 498  * SetupForBlit
 499  *
 500  * Sets up a context for DirectDraw blitting.
 501  * All texture units are disabled, texture unit 0 is set as current unit
 502  * fog, lighting, blending, alpha test, z test, scissor test, culling disabled
 503  * color writing enabled for all channels
 504  * register combiners disabled, shaders disabled
 505  * world matrix is set to identity, texture matrix 0 too
 506  * projection matrix is setup for drawing screen coordinates
 507  *
 508  * Params:
 509  *  This: Device to activate the context for
 510  *  context: Context to setup
 511  *  width: render target width
 512  *  height: render target height
 513  *
 514  *****************************************************************************/
 515 static inline void SetupForBlit(IWineD3DDeviceImpl *This, WineD3DContext *context, UINT width, UINT height) {
 516     int i;
 517
 518     TRACE("Setting up context %p for blitting\n", context);
 519     if(context->last_was_blit) {
 520         TRACE("Context is already set up for blitting, nothing to do\n");
 521         return;
 522     }
 523     context->last_was_blit = TRUE;
 524
 525     /* TODO: Use a display list */
 526
 527     /* Disable shaders */
 528     This->shader_backend->shader_cleanup((IWineD3DDevice *) This);
 529     Context_MarkStateDirty(context, STATE_VSHADER);
 530     Context_MarkStateDirty(context, STATE_PIXELSHADER);
 531
 532     /* Disable all textures. The caller can then bind a texture it wants to blit
 533      * from
 534      */
 535     if(GL_SUPPORT(NV_REGISTER_COMBINERS)) {
 536         glDisable(GL_REGISTER_COMBINERS_NV);
 537         checkGLcall("glDisable(GL_REGISTER_COMBINERS_NV)");
 538     }
 539     if (GL_SUPPORT(ARB_MULTITEXTURE)) {
 540         /* The blitting code uses (for now) the fixed function pipeline, so make sure to reset all fixed
 541          * function texture unit. No need to care for higher samplers
 542          */
 543         for(i = GL_LIMITS(textures) - 1; i > 0 ; i--) {
 544             GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + i));
 545             checkGLcall("glActiveTextureARB");
 546
 547             if(GL_SUPPORT(ARB_TEXTURE_CUBE_MAP)) {
 548                 glDisable(GL_TEXTURE_CUBE_MAP_ARB);
 549                 checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
 550             }
 551             glDisable(GL_TEXTURE_3D);
 552             checkGLcall("glDisable GL_TEXTURE_3D");
 553             glDisable(GL_TEXTURE_2D);
 554             checkGLcall("glDisable GL_TEXTURE_2D");
 555
 556             glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
 557             checkGLcall("glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);");
 558
 559             Context_MarkStateDirty(context, STATE_TEXTURESTAGE(i, WINED3DTSS_COLOROP));
 560             Context_MarkStateDirty(context, STATE_SAMPLER(i));
 561         }
 562         GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB));
 563         checkGLcall("glActiveTextureARB");
 564     }
 565     if(GL_SUPPORT(ARB_TEXTURE_CUBE_MAP)) {
 566         glDisable(GL_TEXTURE_CUBE_MAP_ARB);
 567         checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
 568     }
 569     glDisable(GL_TEXTURE_3D);
 570     checkGLcall("glDisable GL_TEXTURE_3D");
 571     glDisable(GL_TEXTURE_2D);
 572     checkGLcall("glDisable GL_TEXTURE_2D");
 573
 574     glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
 575
 576     glMatrixMode(GL_TEXTURE);
 577     checkGLcall("glMatrixMode(GL_TEXTURE)");
 578     glLoadIdentity();
 579     checkGLcall("glLoadIdentity()");
 580     Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_TEXTURE0));
 581
 582     if (GL_SUPPORT(EXT_TEXTURE_LOD_BIAS)) {
 583         glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
 584                   GL_TEXTURE_LOD_BIAS_EXT,
 585                   0.0);
 586         checkGLcall("glTexEnvi GL_TEXTURE_LOD_BIAS_EXT ...");
 587     }
 588     Context_MarkStateDirty(context, STATE_SAMPLER(0));
 589     Context_MarkStateDirty(context, STATE_TEXTURESTAGE(0, WINED3DTSS_COLOROP));
 590
 591     /* Other misc states */
 592     glDisable(GL_ALPHA_TEST);
 593     checkGLcall("glDisable(GL_ALPHA_TEST)");
 594     Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHATESTENABLE));
 595     glDisable(GL_LIGHTING);
 596     checkGLcall("glDisable GL_LIGHTING");
 597     Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_LIGHTING));
 598     glDisable(GL_DEPTH_TEST);
 599     checkGLcall("glDisable GL_DEPTH_TEST");
 600     Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ZENABLE));
 601     glDisable(GL_FOG);
 602     checkGLcall("glDisable GL_FOG");
 603     Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_FOGENABLE));
 604     glDisable(GL_BLEND);
 605     checkGLcall("glDisable GL_BLEND");
 606     Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE));
 607     glDisable(GL_CULL_FACE);
 608     checkGLcall("glDisable GL_CULL_FACE");
 609     Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_CULLMODE));
 610     glDisable(GL_STENCIL_TEST);
 611     checkGLcall("glDisable GL_STENCIL_TEST");
 612     Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_STENCILENABLE));
 613     glDisable(GL_SCISSOR_TEST);
 614     checkGLcall("glDisable GL_SCISSOR_TEST");
 615     Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE));
 616     if(GL_SUPPORT(ARB_POINT_SPRITE)) {
 617         glDisable(GL_POINT_SPRITE_ARB);
 618         checkGLcall("glDisable GL_POINT_SPRITE_ARB");
 619         Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_POINTSPRITEENABLE));
 620     }
 621     glColorMask(GL_TRUE, GL_TRUE,GL_TRUE,GL_TRUE);
 622     checkGLcall("glColorMask");
 623     Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_CLIPPING));
 624     if (GL_SUPPORT(EXT_SECONDARY_COLOR)) {
 625         glDisable(GL_COLOR_SUM_EXT);
 626         Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SPECULARENABLE));
 627         checkGLcall("glDisable(GL_COLOR_SUM_EXT)");
 628     }
 629     if (GL_SUPPORT(NV_REGISTER_COMBINERS)) {
 630         GL_EXTCALL(glFinalCombinerInputNV(GL_VARIABLE_B_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB));
 631         Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SPECULARENABLE));
 632         checkGLcall("glFinalCombinerInputNV");
 633     }
 634
 635     /* Setup transforms */
 636     glMatrixMode(GL_MODELVIEW);
 637     checkGLcall("glMatrixMode(GL_MODELVIEW)");
 638     glLoadIdentity();
 639     checkGLcall("glLoadIdentity()");
 640     Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_WORLDMATRIX(0)));
 641
 642     glMatrixMode(GL_PROJECTION);
 643     checkGLcall("glMatrixMode(GL_PROJECTION)");
 644     glLoadIdentity();
 645     checkGLcall("glLoadIdentity()");
 646     glOrtho(0, width, height, 0, 0.0, -1.0);
 647     checkGLcall("glOrtho");
 648     Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_PROJECTION));
 649
 650     context->last_was_rhw = TRUE;
 651     Context_MarkStateDirty(context, STATE_VDECL); /* because of last_was_rhw = TRUE */
 652
 653     glDisable(GL_CLIP_PLANE0); checkGLcall("glDisable(clip plane 0)");
 654     glDisable(GL_CLIP_PLANE1); checkGLcall("glDisable(clip plane 1)");
 655     glDisable(GL_CLIP_PLANE2); checkGLcall("glDisable(clip plane 2)");
 656     glDisable(GL_CLIP_PLANE3); checkGLcall("glDisable(clip plane 3)");
 657     glDisable(GL_CLIP_PLANE4); checkGLcall("glDisable(clip plane 4)");
 658     glDisable(GL_CLIP_PLANE5); checkGLcall("glDisable(clip plane 5)");
 659     Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_CLIPPING));
 660
 661     glViewport(0, 0, width, height);
 662     checkGLcall("glViewport");
 663     Context_MarkStateDirty(context, STATE_VIEWPORT);
 664
 665     if(GL_SUPPORT(NV_TEXTURE_SHADER2)) {
 666         glDisable(GL_TEXTURE_SHADER_NV);
 667         checkGLcall("glDisable(GL_TEXTURE_SHADER_NV)");
 668     }
 669 }
 670
 671 /*****************************************************************************
 672  * findThreadContextForSwapChain
 673  *
 674  * Searches a swapchain for all contexts and picks one for the thread tid.
 675  * If none can be found the swapchain is requested to create a new context
 676  *
 677  *****************************************************************************/
 678 static WineD3DContext *findThreadContextForSwapChain(IWineD3DSwapChain *swapchain, DWORD tid) {
 679     int i;
 680
 681     for(i = 0; i < ((IWineD3DSwapChainImpl *) swapchain)->num_contexts; i++) {
 682         if(((IWineD3DSwapChainImpl *) swapchain)->context[i]->tid == tid) {
 683             return ((IWineD3DSwapChainImpl *) swapchain)->context[i];
 684         }
 685
 686     }
 687
 688     /* Create a new context for the thread */
 689     return IWineD3DSwapChainImpl_CreateContextForThread(swapchain);
 690 }
 691
 692 /*****************************************************************************
 693  * FindContext
 694  *
 695  * Finds a context for the current render target and thread
 696  *
 697  * Parameters:
 698  *  target: Render target to find the context for
 699  *  tid: Thread to activate the context for
 700  *
 701  * Returns: The needed context
 702  *
 703  *****************************************************************************/
 704 static inline WineD3DContext *FindContext(IWineD3DDeviceImpl *This, IWineD3DSurface *target, DWORD tid, GLint *buffer) {
 705     IWineD3DSwapChain *swapchain = NULL;
 706     HRESULT hr;
 707     BOOL readTexture = wined3d_settings.offscreen_rendering_mode != ORM_FBO && This->render_offscreen;
 708     WineD3DContext *context = This->activeContext;
 709     BOOL oldRenderOffscreen = This->render_offscreen;
 710     const WINED3DFORMAT oldFmt = ((IWineD3DSurfaceImpl *) This->lastActiveRenderTarget)->resource.format;
 711     const WINED3DFORMAT newFmt = ((IWineD3DSurfaceImpl *) target)->resource.format;
 712
 713     /* To compensate the lack of format switching with some offscreen rendering methods and on onscreen buffers
 714      * the alpha blend state changes with different render target formats
 715      */
 716     if(oldFmt != newFmt) {
 717         const StaticPixelFormatDesc *old = getFormatDescEntry(oldFmt, NULL, NULL);
 718         const StaticPixelFormatDesc *new = getFormatDescEntry(oldFmt, NULL, NULL);
 719
 720         if((old->alphaMask && !new->alphaMask) || (!old->alphaMask && new->alphaMask)) {
 721             Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE));
 722         }
 723     }
 724
 725     hr = IWineD3DSurface_GetContainer(target, &IID_IWineD3DSwapChain, (void **) &swapchain);
 726     if(hr == WINED3D_OK && swapchain) {
 727         TRACE("Rendering onscreen\n");
 728
 729         context = findThreadContextForSwapChain(swapchain, tid);
 730
 731         This->render_offscreen = FALSE;
 732         /* The context != This->activeContext will catch a NOP context change. This can occur
 733          * if we are switching back to swapchain rendering in case of FBO or Back Buffer offscreen
 734          * rendering. No context change is needed in that case
 735          */
 736
 737         if(((IWineD3DSwapChainImpl *) swapchain)->frontBuffer == target) {
 738             *buffer = GL_FRONT;
 739         } else {
 740             *buffer = GL_BACK;
 741         }
 742         if(wined3d_settings.offscreen_rendering_mode == ORM_PBUFFER) {
 743             if(This->pbufferContext && tid == This->pbufferContext->tid) {
 744                 This->pbufferContext->tid = 0;
 745             }
 746         }
 747         IWineD3DSwapChain_Release(swapchain);
 748
 749         if(oldRenderOffscreen) {
 750             Context_MarkStateDirty(context, WINED3DTS_PROJECTION);
 751             Context_MarkStateDirty(context, STATE_VDECL);
 752             Context_MarkStateDirty(context, STATE_VIEWPORT);
 753             Context_MarkStateDirty(context, STATE_SCISSORRECT);
 754             Context_MarkStateDirty(context, STATE_FRONTFACE);
 755         }
 756
 757     } else {
 758         TRACE("Rendering offscreen\n");
 759         This->render_offscreen = TRUE;
 760         *buffer = This->offscreenBuffer;
 761
 762         switch(wined3d_settings.offscreen_rendering_mode) {
 763             case ORM_FBO:
 764                 /* FBOs do not need a different context. Stay with whatever context is active at the moment */
 765                 if(This->activeContext && tid == This->lastThread) {
 766                     context = This->activeContext;
 767                 } else {
 768                     /* This may happen if the app jumps straight into offscreen rendering
 769                      * Start using the context of the primary swapchain. tid == 0 is no problem
 770                      * for findThreadContextForSwapChain.
 771                      *
 772                      * Can also happen on thread switches - in that case findThreadContextForSwapChain
 773                      * is perfect to call.
 774                      */
 775                     context = findThreadContextForSwapChain(This->swapchains[0], tid);
 776                 }
 777                 break;
 778
 779             case ORM_PBUFFER:
 780             {
 781                 IWineD3DSurfaceImpl *targetimpl = (IWineD3DSurfaceImpl *) target;
 782                 if(This->pbufferContext == NULL ||
 783                    This->pbufferWidth < targetimpl->currentDesc.Width ||
 784                    This->pbufferHeight < targetimpl->currentDesc.Height) {
 785                     if(This->pbufferContext) {
 786                         DestroyContext(This, This->pbufferContext);
 787                     }
 788
 789                     /* The display is irrelevant here, the window is 0. But CreateContext needs a valid X connection.
 790                      * Create the context on the same server as the primary swapchain. The primary swapchain is exists at this point.
 791                      */
 792                     This->pbufferContext = CreateContext(This, targetimpl,
 793                             ((IWineD3DSwapChainImpl *) This->swapchains[0])->context[0]->win_handle,
 794                             TRUE /* pbuffer */, &((IWineD3DSwapChainImpl *)This->swapchains[0])->presentParms);
 795                     This->pbufferWidth = targetimpl->currentDesc.Width;
 796                     This->pbufferHeight = targetimpl->currentDesc.Height;
 797                    }
 798
 799                    if(This->pbufferContext) {
 800                        if(This->pbufferContext->tid != 0 && This->pbufferContext->tid != tid) {
 801                            FIXME("The PBuffr context is only supported for one thread for now!\n");
 802                        }
 803                        This->pbufferContext->tid = tid;
 804                        context = This->pbufferContext;
 805                        break;
 806                    } else {
 807                        ERR("Failed to create a buffer context and drawable, falling back to back buffer offscreen rendering\n");
 808                        wined3d_settings.offscreen_rendering_mode = ORM_BACKBUFFER;
 809                    }
 810             }
 811
 812             case ORM_BACKBUFFER:
 813                 /* Stay with the currently active context for back buffer rendering */
 814                 if(This->activeContext && tid == This->lastThread) {
 815                     context = This->activeContext;
 816                 } else {
 817                     /* This may happen if the app jumps straight into offscreen rendering
 818                      * Start using the context of the primary swapchain. tid == 0 is no problem
 819                      * for findThreadContextForSwapChain.
 820                      *
 821                      * Can also happen on thread switches - in that case findThreadContextForSwapChain
 822                      * is perfect to call.
 823                      */
 824                     context = findThreadContextForSwapChain(This->swapchains[0], tid);
 825                 }
 826                 break;
 827         }
 828
 829         if (wined3d_settings.offscreen_rendering_mode != ORM_FBO) {
 830             /* Make sure we have a OpenGL texture name so the PreLoad() used to read the buffer
 831              * back when we are done won't mark us dirty.
 832              */
 833             IWineD3DSurface_PreLoad(target);
 834         }
 835
 836         if(!oldRenderOffscreen) {
 837             Context_MarkStateDirty(context, WINED3DTS_PROJECTION);
 838             Context_MarkStateDirty(context, STATE_VDECL);
 839             Context_MarkStateDirty(context, STATE_VIEWPORT);
 840             Context_MarkStateDirty(context, STATE_SCISSORRECT);
 841             Context_MarkStateDirty(context, STATE_FRONTFACE);
 842         }
 843     }
 844     if (readTexture) {
 845         BOOL oldInDraw = This->isInDraw;
 846
 847         /* PreLoad requires a context to load the texture, thus it will call ActivateContext.
 848          * Set the isInDraw to true to signal PreLoad that it has a context. Will be tricky
 849          * when using offscreen rendering with multithreading
 850          */
 851         This->isInDraw = TRUE;
 852
 853         /* Do that before switching the context:
 854          * Read the back buffer of the old drawable into the destination texture
 855          */
 856         IWineD3DSurface_PreLoad(This->lastActiveRenderTarget);
 857
 858         /* Assume that the drawable will be modified by some other things now */
 859         IWineD3DSurface_ModifyLocation(This->lastActiveRenderTarget, SFLAG_INDRAWABLE, FALSE);
 860
 861         This->isInDraw = oldInDraw;
 862     }
 863
 864     if(oldRenderOffscreen != This->render_offscreen && This->depth_copy_state != WINED3D_DCS_NO_COPY) {
 865         This->depth_copy_state = WINED3D_DCS_COPY;
 866     }
 867     return context;
 868 }
 869
 870 /*****************************************************************************
 871  * ActivateContext
 872  *
 873  * Finds a rendering context and drawable matching the device and render
 874  * target for the current thread, activates them and puts them into the
 875  * requested state.
 876  *
 877  * Params:
 878  *  This: Device to activate the context for
 879  *  target: Requested render target
 880  *  usage: Prepares the context for blitting, drawing or other actions
 881  *
 882  *****************************************************************************/
 883 void ActivateContext(IWineD3DDeviceImpl *This, IWineD3DSurface *target, ContextUsage usage) {
 884     DWORD                         tid = GetCurrentThreadId();
 885     int                           i;
 886     DWORD                         dirtyState, idx;
 887     BYTE                          shift;
 888     WineD3DContext                *context;
 889     GLint                         drawBuffer=0;
 890
 891     TRACE("(%p): Selecting context for render target %p, thread %d\n", This, target, tid);
 892     if(This->lastActiveRenderTarget != target || tid != This->lastThread) {
 893         context = FindContext(This, target, tid, &drawBuffer);
 894         This->lastActiveRenderTarget = target;
 895         This->lastThread = tid;
 896     } else {
 897         /* Stick to the old context */
 898         context = This->activeContext;
 899     }
 900
 901     /* Activate the opengl context */
 902     if(context != This->activeContext) {
 903         BOOL ret;
 904
 905         /* Prevent an unneeded context switch as those are expensive */
 906         if(context->glCtx && (context->glCtx == pwglGetCurrentContext())) {
 907             TRACE("Already using gl context %p\n", context->glCtx);
 908         }
 909         else {
 910             TRACE("Switching gl ctx to %p, hdc=%p ctx=%p\n", context, context->hdc, context->glCtx);
 911             ret = pwglMakeCurrent(context->hdc, context->glCtx);
 912             if(ret == FALSE) {
 913                 ERR("Failed to activate the new context\n");
 914             }
 915         }
 916         if(This->activeContext->vshader_const_dirty) {
 917             memset(This->activeContext->vshader_const_dirty, 1,
 918                    sizeof(*This->activeContext->vshader_const_dirty) * GL_LIMITS(vshader_constantsF));
 919         }
 920         if(This->activeContext->pshader_const_dirty) {
 921             memset(This->activeContext->pshader_const_dirty, 1,
 922                    sizeof(*This->activeContext->pshader_const_dirty) * GL_LIMITS(pshader_constantsF));
 923         }
 924         This->activeContext = context;
 925     }
 926
 927     /* We only need ENTER_GL for the gl calls made below and for the helper functions which make GL calls */
 928     ENTER_GL();
 929     /* Select the right draw buffer. It is selected in FindContext. */
 930     if(drawBuffer && context->last_draw_buffer != drawBuffer) {
 931         TRACE("Drawing to buffer: %#x\n", drawBuffer);
 932         context->last_draw_buffer = drawBuffer;
 933
 934         glDrawBuffer(drawBuffer);
 935         checkGLcall("glDrawBuffer");
 936     }
 937
 938     switch(usage) {
 939         case CTXUSAGE_RESOURCELOAD:
 940             /* This does not require any special states to be set up */
 941             break;
 942
 943         case CTXUSAGE_CLEAR:
 944             if(context->last_was_blit && GL_SUPPORT(NV_TEXTURE_SHADER2)) {
 945                 glEnable(GL_TEXTURE_SHADER_NV);
 946                 checkGLcall("glEnable(GL_TEXTURE_SHADER_NV)");
 947             }
 948
 949             glEnable(GL_SCISSOR_TEST);
 950             checkGLcall("glEnable GL_SCISSOR_TEST");
 951             context->last_was_blit = FALSE;
 952             Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE));
 953             Context_MarkStateDirty(context, STATE_SCISSORRECT);
 954             break;
 955
 956         case CTXUSAGE_DRAWPRIM:
 957             /* This needs all dirty states applied */
 958             if(context->last_was_blit && GL_SUPPORT(NV_TEXTURE_SHADER2)) {
 959                 glEnable(GL_TEXTURE_SHADER_NV);
 960                 checkGLcall("glEnable(GL_TEXTURE_SHADER_NV)");
 961             }
 962
 963             IWineD3DDeviceImpl_FindTexUnitMap(This);
 964
 965             for(i=0; i < context->numDirtyEntries; i++) {
 966                 dirtyState = context->dirtyArray[i];
 967                 idx = dirtyState >> 5;
 968                 shift = dirtyState & 0x1f;
 969                 context->isStateDirty[idx] &= ~(1 << shift);
 970                 StateTable[dirtyState].apply(dirtyState, This->stateBlock, context);
 971             }
 972             context->numDirtyEntries = 0; /* This makes the whole list clean */
 973             context->last_was_blit = FALSE;
 974             break;
 975
 976         case CTXUSAGE_BLIT:
 977             SetupForBlit(This, context,
 978                          ((IWineD3DSurfaceImpl *)target)->currentDesc.Width,
 979                          ((IWineD3DSurfaceImpl *)target)->currentDesc.Height);
 980             break;
 981
 982         default:
 983             FIXME("Unexpected context usage requested\n");
 984     }
 985     LEAVE_GL();
 986 }