Merge commit 'eee/mesa-es' into android

25 files changed, 5265 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/wgl/SConscript b/src/gallium/state_trackers/wgl/SConscript
new file mode 100644
index 0000000000..69b88618ec
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/SConscript
@@ -0,0 +1,42 @@
+import os
+
+Import('*')
+
+if env['platform'] in ['windows']:
+     
+    env = env.Clone()
+     
+    env.Append(CPPPATH = [
+    	'#src/mesa',
+    	'.',
+    ])
+     
+    env.Append(CPPDEFINES = [
+        '_GDI32_', # prevent wgl* being declared __declspec(dllimport)
+        'BUILD_GL32', # declare gl* as __declspec(dllexport) in Mesa headers 
+        'WIN32_THREADS', # use Win32 thread API
+    ])
+     
+    sources = [
+        'icd/stw_icd.c',
+
+        'wgl/stw_wgl.c',
+
+        'shared/stw_context.c',
+        'shared/stw_device.c',
+        'shared/stw_framebuffer.c',
+        'shared/stw_pixelformat.c',
+        'shared/stw_extensionsstring.c',
+        'shared/stw_extswapinterval.c',
+        'shared/stw_getprocaddress.c',
+        'shared/stw_extgallium.c',
+        'shared/stw_arbpixelformat.c',
+        'shared/stw_tls.c',
+    ]
+
+    wgl = env.ConvenienceLibrary(
+        target ='wgl',
+        source = sources,
+    )
+    
+    Export('wgl')
diff --git a/src/gallium/state_trackers/wgl/icd/stw_icd.c b/src/gallium/state_trackers/wgl/icd/stw_icd.c
new file mode 100644
index 0000000000..347f40aa06
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/icd/stw_icd.c
@@ -0,0 +1,617 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include <windows.h>
+#include <stdio.h>
+
+#include "GL/gl.h"
+
+#include "util/u_debug.h"
+#include "pipe/p_thread.h"
+
+#include "shared/stw_public.h"
+#include "icd/stw_icd.h"
+
+#define DBG 0
+
+
+BOOL APIENTRY
+DrvCopyContext(
+   DHGLRC dhrcSource,
+   DHGLRC dhrcDest,
+   UINT fuMask )
+{
+   return stw_copy_context(dhrcSource, dhrcDest, fuMask);
+}
+
+
+DHGLRC APIENTRY
+DrvCreateLayerContext(
+   HDC hdc,
+   INT iLayerPlane )
+{
+   DHGLRC r;
+   
+   r = stw_create_layer_context( hdc, iLayerPlane );
+   
+   if (DBG)
+      debug_printf( "%s( %p, %i ) = %u\n",
+                    __FUNCTION__, hdc, iLayerPlane, r );
+   
+   return r;
+}
+
+DHGLRC APIENTRY
+DrvCreateContext(
+   HDC hdc )
+{
+   return DrvCreateLayerContext( hdc, 0 );
+}
+
+BOOL APIENTRY
+DrvDeleteContext(
+   DHGLRC dhglrc )
+{
+   BOOL r;
+   
+   r = stw_delete_context( dhglrc );
+   
+   if (DBG)
+      debug_printf( "%s( %u ) = %u\n",
+                    __FUNCTION__, dhglrc, r );
+   
+   return r;
+}
+
+BOOL APIENTRY
+DrvDescribeLayerPlane(
+   HDC hdc,
+   INT iPixelFormat,
+   INT iLayerPlane,
+   UINT nBytes,
+   LPLAYERPLANEDESCRIPTOR plpd )
+{
+   if (DBG) 
+      debug_printf( "%s\n", __FUNCTION__ );
+
+   return FALSE;
+}
+
+LONG APIENTRY
+DrvDescribePixelFormat(
+   HDC hdc,
+   INT iPixelFormat,
+   ULONG cjpfd,
+   PIXELFORMATDESCRIPTOR *ppfd )
+{
+   LONG r;
+
+   r = stw_pixelformat_describe( hdc, iPixelFormat, cjpfd, ppfd );
+
+   if (DBG)
+      debug_printf( "%s( %p, %d, %u, %p ) = %d\n",
+                    __FUNCTION__, hdc, iPixelFormat, cjpfd, ppfd, r );
+
+   return r;
+}
+
+int APIENTRY
+DrvGetLayerPaletteEntries(
+   HDC hdc,
+   INT iLayerPlane,
+   INT iStart,
+   INT cEntries,
+   COLORREF *pcr )
+{
+   if (DBG)
+      debug_printf( "%s\n", __FUNCTION__ );
+
+   return 0;
+}
+
+PROC APIENTRY
+DrvGetProcAddress(
+   LPCSTR lpszProc )
+{
+   PROC r;
+
+   r = stw_get_proc_address( lpszProc );
+
+   if (DBG)
+      debug_printf( "%s( \"%s\" ) = %p\n", __FUNCTION__, lpszProc, r );
+
+   return r;
+}
+
+BOOL APIENTRY
+DrvRealizeLayerPalette(
+   HDC hdc,
+   INT iLayerPlane,
+   BOOL bRealize )
+{
+   if (DBG)
+      debug_printf( "%s\n", __FUNCTION__ );
+
+   return FALSE;
+}
+
+BOOL APIENTRY
+DrvReleaseContext(
+   DHGLRC dhglrc )
+{
+   return stw_release_context(dhglrc);
+}
+
+void APIENTRY
+DrvSetCallbackProcs(
+   INT nProcs,
+   PROC *pProcs )
+{
+   if (DBG)
+      debug_printf( "%s( %d, %p )\n", __FUNCTION__, nProcs, pProcs );
+
+   return;
+}
+
+
+/**
+ * Although WGL allows different dispatch entrypoints per context 
+ */
+static const GLCLTPROCTABLE cpt =
+{
+   OPENGL_VERSION_110_ENTRIES,
+   {
+      &glNewList,
+      &glEndList,
+      &glCallList,
+      &glCallLists,
+      &glDeleteLists,
+      &glGenLists,
+      &glListBase,
+      &glBegin,
+      &glBitmap,
+      &glColor3b,
+      &glColor3bv,
+      &glColor3d,
+      &glColor3dv,
+      &glColor3f,
+      &glColor3fv,
+      &glColor3i,
+      &glColor3iv,
+      &glColor3s,
+      &glColor3sv,
+      &glColor3ub,
+      &glColor3ubv,
+      &glColor3ui,
+      &glColor3uiv,
+      &glColor3us,
+      &glColor3usv,
+      &glColor4b,
+      &glColor4bv,
+      &glColor4d,
+      &glColor4dv,
+      &glColor4f,
+      &glColor4fv,
+      &glColor4i,
+      &glColor4iv,
+      &glColor4s,
+      &glColor4sv,
+      &glColor4ub,
+      &glColor4ubv,
+      &glColor4ui,
+      &glColor4uiv,
+      &glColor4us,
+      &glColor4usv,
+      &glEdgeFlag,
+      &glEdgeFlagv,
+      &glEnd,
+      &glIndexd,
+      &glIndexdv,
+      &glIndexf,
+      &glIndexfv,
+      &glIndexi,
+      &glIndexiv,
+      &glIndexs,
+      &glIndexsv,
+      &glNormal3b,
+      &glNormal3bv,
+      &glNormal3d,
+      &glNormal3dv,
+      &glNormal3f,
+      &glNormal3fv,
+      &glNormal3i,
+      &glNormal3iv,
+      &glNormal3s,
+      &glNormal3sv,
+      &glRasterPos2d,
+      &glRasterPos2dv,
+      &glRasterPos2f,
+      &glRasterPos2fv,
+      &glRasterPos2i,
+      &glRasterPos2iv,
+      &glRasterPos2s,
+      &glRasterPos2sv,
+      &glRasterPos3d,
+      &glRasterPos3dv,
+      &glRasterPos3f,
+      &glRasterPos3fv,
+      &glRasterPos3i,
+      &glRasterPos3iv,
+      &glRasterPos3s,
+      &glRasterPos3sv,
+      &glRasterPos4d,
+      &glRasterPos4dv,
+      &glRasterPos4f,
+      &glRasterPos4fv,
+      &glRasterPos4i,
+      &glRasterPos4iv,
+      &glRasterPos4s,
+      &glRasterPos4sv,
+      &glRectd,
+      &glRectdv,
+      &glRectf,
+      &glRectfv,
+      &glRecti,
+      &glRectiv,
+      &glRects,
+      &glRectsv,
+      &glTexCoord1d,
+      &glTexCoord1dv,
+      &glTexCoord1f,
+      &glTexCoord1fv,
+      &glTexCoord1i,
+      &glTexCoord1iv,
+      &glTexCoord1s,
+      &glTexCoord1sv,
+      &glTexCoord2d,
+      &glTexCoord2dv,
+      &glTexCoord2f,
+      &glTexCoord2fv,
+      &glTexCoord2i,
+      &glTexCoord2iv,
+      &glTexCoord2s,
+      &glTexCoord2sv,
+      &glTexCoord3d,
+      &glTexCoord3dv,
+      &glTexCoord3f,
+      &glTexCoord3fv,
+      &glTexCoord3i,
+      &glTexCoord3iv,
+      &glTexCoord3s,
+      &glTexCoord3sv,
+      &glTexCoord4d,
+      &glTexCoord4dv,
+      &glTexCoord4f,
+      &glTexCoord4fv,
+      &glTexCoord4i,
+      &glTexCoord4iv,
+      &glTexCoord4s,
+      &glTexCoord4sv,
+      &glVertex2d,
+      &glVertex2dv,
+      &glVertex2f,
+      &glVertex2fv,
+      &glVertex2i,
+      &glVertex2iv,
+      &glVertex2s,
+      &glVertex2sv,
+      &glVertex3d,
+      &glVertex3dv,
+      &glVertex3f,
+      &glVertex3fv,
+      &glVertex3i,
+      &glVertex3iv,
+      &glVertex3s,
+      &glVertex3sv,
+      &glVertex4d,
+      &glVertex4dv,
+      &glVertex4f,
+      &glVertex4fv,
+      &glVertex4i,
+      &glVertex4iv,
+      &glVertex4s,
+      &glVertex4sv,
+      &glClipPlane,
+      &glColorMaterial,
+      &glCullFace,
+      &glFogf,
+      &glFogfv,
+      &glFogi,
+      &glFogiv,
+      &glFrontFace,
+      &glHint,
+      &glLightf,
+      &glLightfv,
+      &glLighti,
+      &glLightiv,
+      &glLightModelf,
+      &glLightModelfv,
+      &glLightModeli,
+      &glLightModeliv,
+      &glLineStipple,
+      &glLineWidth,
+      &glMaterialf,
+      &glMaterialfv,
+      &glMateriali,
+      &glMaterialiv,
+      &glPointSize,
+      &glPolygonMode,
+      &glPolygonStipple,
+      &glScissor,
+      &glShadeModel,
+      &glTexParameterf,
+      &glTexParameterfv,
+      &glTexParameteri,
+      &glTexParameteriv,
+      &glTexImage1D,
+      &glTexImage2D,
+      &glTexEnvf,
+      &glTexEnvfv,
+      &glTexEnvi,
+      &glTexEnviv,
+      &glTexGend,
+      &glTexGendv,
+      &glTexGenf,
+      &glTexGenfv,
+      &glTexGeni,
+      &glTexGeniv,
+      &glFeedbackBuffer,
+      &glSelectBuffer,
+      &glRenderMode,
+      &glInitNames,
+      &glLoadName,
+      &glPassThrough,
+      &glPopName,
+      &glPushName,
+      &glDrawBuffer,
+      &glClear,
+      &glClearAccum,
+      &glClearIndex,
+      &glClearColor,
+      &glClearStencil,
+      &glClearDepth,
+      &glStencilMask,
+      &glColorMask,
+      &glDepthMask,
+      &glIndexMask,
+      &glAccum,
+      &glDisable,
+      &glEnable,
+      &glFinish,
+      &glFlush,
+      &glPopAttrib,
+      &glPushAttrib,
+      &glMap1d,
+      &glMap1f,
+      &glMap2d,
+      &glMap2f,
+      &glMapGrid1d,
+      &glMapGrid1f,
+      &glMapGrid2d,
+      &glMapGrid2f,
+      &glEvalCoord1d,
+      &glEvalCoord1dv,
+      &glEvalCoord1f,
+      &glEvalCoord1fv,
+      &glEvalCoord2d,
+      &glEvalCoord2dv,
+      &glEvalCoord2f,
+      &glEvalCoord2fv,
+      &glEvalMesh1,
+      &glEvalPoint1,
+      &glEvalMesh2,
+      &glEvalPoint2,
+      &glAlphaFunc,
+      &glBlendFunc,
+      &glLogicOp,
+      &glStencilFunc,
+      &glStencilOp,
+      &glDepthFunc,
+      &glPixelZoom,
+      &glPixelTransferf,
+      &glPixelTransferi,
+      &glPixelStoref,
+      &glPixelStorei,
+      &glPixelMapfv,
+      &glPixelMapuiv,
+      &glPixelMapusv,
+      &glReadBuffer,
+      &glCopyPixels,
+      &glReadPixels,
+      &glDrawPixels,
+      &glGetBooleanv,
+      &glGetClipPlane,
+      &glGetDoublev,
+      &glGetError,
+      &glGetFloatv,
+      &glGetIntegerv,
+      &glGetLightfv,
+      &glGetLightiv,
+      &glGetMapdv,
+      &glGetMapfv,
+      &glGetMapiv,
+      &glGetMaterialfv,
+      &glGetMaterialiv,
+      &glGetPixelMapfv,
+      &glGetPixelMapuiv,
+      &glGetPixelMapusv,
+      &glGetPolygonStipple,
+      &glGetString,
+      &glGetTexEnvfv,
+      &glGetTexEnviv,
+      &glGetTexGendv,
+      &glGetTexGenfv,
+      &glGetTexGeniv,
+      &glGetTexImage,
+      &glGetTexParameterfv,
+      &glGetTexParameteriv,
+      &glGetTexLevelParameterfv,
+      &glGetTexLevelParameteriv,
+      &glIsEnabled,
+      &glIsList,
+      &glDepthRange,
+      &glFrustum,
+      &glLoadIdentity,
+      &glLoadMatrixf,
+      &glLoadMatrixd,
+      &glMatrixMode,
+      &glMultMatrixf,
+      &glMultMatrixd,
+      &glOrtho,
+      &glPopMatrix,
+      &glPushMatrix,
+      &glRotated,
+      &glRotatef,
+      &glScaled,
+      &glScalef,
+      &glTranslated,
+      &glTranslatef,
+      &glViewport,
+      &glArrayElement,
+      &glBindTexture,
+      &glColorPointer,
+      &glDisableClientState,
+      &glDrawArrays,
+      &glDrawElements,
+      &glEdgeFlagPointer,
+      &glEnableClientState,
+      &glIndexPointer,
+      &glIndexub,
+      &glIndexubv,
+      &glInterleavedArrays,
+      &glNormalPointer,
+      &glPolygonOffset,
+      &glTexCoordPointer,
+      &glVertexPointer,
+      &glAreTexturesResident,
+      &glCopyTexImage1D,
+      &glCopyTexImage2D,
+      &glCopyTexSubImage1D,
+      &glCopyTexSubImage2D,
+      &glDeleteTextures,
+      &glGenTextures,
+      &glGetPointerv,
+      &glIsTexture,
+      &glPrioritizeTextures,
+      &glTexSubImage1D,
+      &glTexSubImage2D,
+      &glPopClientAttrib,
+      &glPushClientAttrib
+   }
+};
+
+
+PGLCLTPROCTABLE APIENTRY
+DrvSetContext(
+   HDC hdc,
+   DHGLRC dhglrc,
+   PFN_SETPROCTABLE pfnSetProcTable )
+{
+   PGLCLTPROCTABLE r = (PGLCLTPROCTABLE)&cpt;
+   
+   if (!stw_make_current( hdc, dhglrc ))
+      r = NULL;
+      
+   if (DBG)
+      debug_printf( "%s( 0x%p, %u, 0x%p ) = %p\n", 
+                    __FUNCTION__, hdc, dhglrc, pfnSetProcTable, r );
+
+   return r;
+}
+
+int APIENTRY
+DrvSetLayerPaletteEntries(
+   HDC hdc,
+   INT iLayerPlane,
+   INT iStart,
+   INT cEntries,
+   CONST COLORREF *pcr )
+{
+   if (DBG)
+      debug_printf( "%s\n", __FUNCTION__ );
+
+   return 0;
+}
+
+BOOL APIENTRY
+DrvSetPixelFormat(
+   HDC hdc,
+   LONG iPixelFormat )
+{
+   BOOL r;
+
+   r = stw_pixelformat_set( hdc, iPixelFormat );
+
+   if (DBG)
+      debug_printf( "%s( %p, %d ) = %s\n", __FUNCTION__, hdc, iPixelFormat, r ? "TRUE" : "FALSE" );
+
+   return r;
+}
+
+BOOL APIENTRY
+DrvShareLists(
+   DHGLRC dhglrc1,
+   DHGLRC dhglrc2 )
+{
+   if (DBG)
+      debug_printf( "%s\n", __FUNCTION__ );
+
+   return stw_share_lists(dhglrc1, dhglrc2);
+}
+
+BOOL APIENTRY
+DrvSwapBuffers(
+   HDC hdc )
+{
+   if (DBG)
+      debug_printf( "%s( %p )\n", __FUNCTION__, hdc );
+
+   return stw_swap_buffers( hdc );
+}
+
+BOOL APIENTRY
+DrvSwapLayerBuffers(
+   HDC hdc,
+   UINT fuPlanes )
+{
+   if (DBG)
+      debug_printf( "%s\n", __FUNCTION__ );
+
+   return stw_swap_layer_buffers( hdc, fuPlanes );
+}
+
+BOOL APIENTRY
+DrvValidateVersion(
+   ULONG ulVersion )
+{
+   if (DBG)
+      debug_printf( "%s( %u )\n", __FUNCTION__, ulVersion );
+
+   /* TODO: get the expected version from the winsys */
+   
+   return ulVersion == 1;
+}
diff --git a/src/gallium/state_trackers/wgl/icd/stw_icd.h b/src/gallium/state_trackers/wgl/icd/stw_icd.h
new file mode 100644
index 0000000000..cbc1a66548
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/icd/stw_icd.h
@@ -0,0 +1,489 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef STW_ICD_H
+#define STW_ICD_H
+
+
+#include <windows.h>
+
+#include "GL/gl.h"
+
+
+typedef ULONG DHGLRC;
+
+#define OPENGL_VERSION_110_ENTRIES  336
+
+struct __GLdispatchTableRec
+{
+   void (GLAPIENTRY * NewList)(GLuint, GLenum);
+   void (GLAPIENTRY * EndList)(void);
+   void (GLAPIENTRY * CallList)(GLuint);
+   void (GLAPIENTRY * CallLists)(GLsizei, GLenum, const GLvoid *);
+   void (GLAPIENTRY * DeleteLists)(GLuint, GLsizei);
+   GLuint (GLAPIENTRY * GenLists)(GLsizei);
+   void (GLAPIENTRY * ListBase)(GLuint);
+   void (GLAPIENTRY * Begin)(GLenum);
+   void (GLAPIENTRY * Bitmap)(GLsizei, GLsizei, GLfloat, GLfloat, GLfloat, GLfloat, const GLubyte *);
+   void (GLAPIENTRY * Color3b)(GLbyte, GLbyte, GLbyte);
+   void (GLAPIENTRY * Color3bv)(const GLbyte *);
+   void (GLAPIENTRY * Color3d)(GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * Color3dv)(const GLdouble *);
+   void (GLAPIENTRY * Color3f)(GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * Color3fv)(const GLfloat *);
+   void (GLAPIENTRY * Color3i)(GLint, GLint, GLint);
+   void (GLAPIENTRY * Color3iv)(const GLint *);
+   void (GLAPIENTRY * Color3s)(GLshort, GLshort, GLshort);
+   void (GLAPIENTRY * Color3sv)(const GLshort *);
+   void (GLAPIENTRY * Color3ub)(GLubyte, GLubyte, GLubyte);
+   void (GLAPIENTRY * Color3ubv)(const GLubyte *);
+   void (GLAPIENTRY * Color3ui)(GLuint, GLuint, GLuint);
+   void (GLAPIENTRY * Color3uiv)(const GLuint *);
+   void (GLAPIENTRY * Color3us)(GLushort, GLushort, GLushort);
+   void (GLAPIENTRY * Color3usv)(const GLushort *);
+   void (GLAPIENTRY * Color4b)(GLbyte, GLbyte, GLbyte, GLbyte);
+   void (GLAPIENTRY * Color4bv)(const GLbyte *);
+   void (GLAPIENTRY * Color4d)(GLdouble, GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * Color4dv)(const GLdouble *);
+   void (GLAPIENTRY * Color4f)(GLfloat, GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * Color4fv)(const GLfloat *);
+   void (GLAPIENTRY * Color4i)(GLint, GLint, GLint, GLint);
+   void (GLAPIENTRY * Color4iv)(const GLint *);
+   void (GLAPIENTRY * Color4s)(GLshort, GLshort, GLshort, GLshort);
+   void (GLAPIENTRY * Color4sv)(const GLshort *);
+   void (GLAPIENTRY * Color4ub)(GLubyte, GLubyte, GLubyte, GLubyte);
+   void (GLAPIENTRY * Color4ubv)(const GLubyte *);
+   void (GLAPIENTRY * Color4ui)(GLuint, GLuint, GLuint, GLuint);
+   void (GLAPIENTRY * Color4uiv)(const GLuint *);
+   void (GLAPIENTRY * Color4us)(GLushort, GLushort, GLushort, GLushort);
+   void (GLAPIENTRY * Color4usv)(const GLushort *);
+   void (GLAPIENTRY * EdgeFlag)(GLboolean);
+   void (GLAPIENTRY * EdgeFlagv)(const GLboolean *);
+   void (GLAPIENTRY * End)(void);
+   void (GLAPIENTRY * Indexd)(GLdouble);
+   void (GLAPIENTRY * Indexdv)(const GLdouble *);
+   void (GLAPIENTRY * Indexf)(GLfloat);
+   void (GLAPIENTRY * Indexfv)(const GLfloat *);
+   void (GLAPIENTRY * Indexi)(GLint);
+   void (GLAPIENTRY * Indexiv)(const GLint *);
+   void (GLAPIENTRY * Indexs)(GLshort);
+   void (GLAPIENTRY * Indexsv)(const GLshort *);
+   void (GLAPIENTRY * Normal3b)(GLbyte, GLbyte, GLbyte);
+   void (GLAPIENTRY * Normal3bv)(const GLbyte *);
+   void (GLAPIENTRY * Normal3d)(GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * Normal3dv)(const GLdouble *);
+   void (GLAPIENTRY * Normal3f)(GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * Normal3fv)(const GLfloat *);
+   void (GLAPIENTRY * Normal3i)(GLint, GLint, GLint);
+   void (GLAPIENTRY * Normal3iv)(const GLint *);
+   void (GLAPIENTRY * Normal3s)(GLshort, GLshort, GLshort);
+   void (GLAPIENTRY * Normal3sv)(const GLshort *);
+   void (GLAPIENTRY * RasterPos2d)(GLdouble, GLdouble);
+   void (GLAPIENTRY * RasterPos2dv)(const GLdouble *);
+   void (GLAPIENTRY * RasterPos2f)(GLfloat, GLfloat);
+   void (GLAPIENTRY * RasterPos2fv)(const GLfloat *);
+   void (GLAPIENTRY * RasterPos2i)(GLint, GLint);
+   void (GLAPIENTRY * RasterPos2iv)(const GLint *);
+   void (GLAPIENTRY * RasterPos2s)(GLshort, GLshort);
+   void (GLAPIENTRY * RasterPos2sv)(const GLshort *);
+   void (GLAPIENTRY * RasterPos3d)(GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * RasterPos3dv)(const GLdouble *);
+   void (GLAPIENTRY * RasterPos3f)(GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * RasterPos3fv)(const GLfloat *);
+   void (GLAPIENTRY * RasterPos3i)(GLint, GLint, GLint);
+   void (GLAPIENTRY * RasterPos3iv)(const GLint *);
+   void (GLAPIENTRY * RasterPos3s)(GLshort, GLshort, GLshort);
+   void (GLAPIENTRY * RasterPos3sv)(const GLshort *);
+   void (GLAPIENTRY * RasterPos4d)(GLdouble, GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * RasterPos4dv)(const GLdouble *);
+   void (GLAPIENTRY * RasterPos4f)(GLfloat, GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * RasterPos4fv)(const GLfloat *);
+   void (GLAPIENTRY * RasterPos4i)(GLint, GLint, GLint, GLint);
+   void (GLAPIENTRY * RasterPos4iv)(const GLint *);
+   void (GLAPIENTRY * RasterPos4s)(GLshort, GLshort, GLshort, GLshort);
+   void (GLAPIENTRY * RasterPos4sv)(const GLshort *);
+   void (GLAPIENTRY * Rectd)(GLdouble, GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * Rectdv)(const GLdouble *, const GLdouble *);
+   void (GLAPIENTRY * Rectf)(GLfloat, GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * Rectfv)(const GLfloat *, const GLfloat *);
+   void (GLAPIENTRY * Recti)(GLint, GLint, GLint, GLint);
+   void (GLAPIENTRY * Rectiv)(const GLint *, const GLint *);
+   void (GLAPIENTRY * Rects)(GLshort, GLshort, GLshort, GLshort);
+   void (GLAPIENTRY * Rectsv)(const GLshort *, const GLshort *);
+   void (GLAPIENTRY * TexCoord1d)(GLdouble);
+   void (GLAPIENTRY * TexCoord1dv)(const GLdouble *);
+   void (GLAPIENTRY * TexCoord1f)(GLfloat);
+   void (GLAPIENTRY * TexCoord1fv)(const GLfloat *);
+   void (GLAPIENTRY * TexCoord1i)(GLint);
+   void (GLAPIENTRY * TexCoord1iv)(const GLint *);
+   void (GLAPIENTRY * TexCoord1s)(GLshort);
+   void (GLAPIENTRY * TexCoord1sv)(const GLshort *);
+   void (GLAPIENTRY * TexCoord2d)(GLdouble, GLdouble);
+   void (GLAPIENTRY * TexCoord2dv)(const GLdouble *);
+   void (GLAPIENTRY * TexCoord2f)(GLfloat, GLfloat);
+   void (GLAPIENTRY * TexCoord2fv)(const GLfloat *);
+   void (GLAPIENTRY * TexCoord2i)(GLint, GLint);
+   void (GLAPIENTRY * TexCoord2iv)(const GLint *);
+   void (GLAPIENTRY * TexCoord2s)(GLshort, GLshort);
+   void (GLAPIENTRY * TexCoord2sv)(const GLshort *);
+   void (GLAPIENTRY * TexCoord3d)(GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * TexCoord3dv)(const GLdouble *);
+   void (GLAPIENTRY * TexCoord3f)(GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * TexCoord3fv)(const GLfloat *);
+   void (GLAPIENTRY * TexCoord3i)(GLint, GLint, GLint);
+   void (GLAPIENTRY * TexCoord3iv)(const GLint *);
+   void (GLAPIENTRY * TexCoord3s)(GLshort, GLshort, GLshort);
+   void (GLAPIENTRY * TexCoord3sv)(const GLshort *);
+   void (GLAPIENTRY * TexCoord4d)(GLdouble, GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * TexCoord4dv)(const GLdouble *);
+   void (GLAPIENTRY * TexCoord4f)(GLfloat, GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * TexCoord4fv)(const GLfloat *);
+   void (GLAPIENTRY * TexCoord4i)(GLint, GLint, GLint, GLint);
+   void (GLAPIENTRY * TexCoord4iv)(const GLint *);
+   void (GLAPIENTRY * TexCoord4s)(GLshort, GLshort, GLshort, GLshort);
+   void (GLAPIENTRY * TexCoord4sv)(const GLshort *);
+   void (GLAPIENTRY * Vertex2d)(GLdouble, GLdouble);
+   void (GLAPIENTRY * Vertex2dv)(const GLdouble *);
+   void (GLAPIENTRY * Vertex2f)(GLfloat, GLfloat);
+   void (GLAPIENTRY * Vertex2fv)(const GLfloat *);
+   void (GLAPIENTRY * Vertex2i)(GLint, GLint);
+   void (GLAPIENTRY * Vertex2iv)(const GLint *);
+   void (GLAPIENTRY * Vertex2s)(GLshort, GLshort);
+   void (GLAPIENTRY * Vertex2sv)(const GLshort *);
+   void (GLAPIENTRY * Vertex3d)(GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * Vertex3dv)(const GLdouble *);
+   void (GLAPIENTRY * Vertex3f)(GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * Vertex3fv)(const GLfloat *);
+   void (GLAPIENTRY * Vertex3i)(GLint, GLint, GLint);
+   void (GLAPIENTRY * Vertex3iv)(const GLint *);
+   void (GLAPIENTRY * Vertex3s)(GLshort, GLshort, GLshort);
+   void (GLAPIENTRY * Vertex3sv)(const GLshort *);
+   void (GLAPIENTRY * Vertex4d)(GLdouble, GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * Vertex4dv)(const GLdouble *);
+   void (GLAPIENTRY * Vertex4f)(GLfloat, GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * Vertex4fv)(const GLfloat *);
+   void (GLAPIENTRY * Vertex4i)(GLint, GLint, GLint, GLint);
+   void (GLAPIENTRY * Vertex4iv)(const GLint *);
+   void (GLAPIENTRY * Vertex4s)(GLshort, GLshort, GLshort, GLshort);
+   void (GLAPIENTRY * Vertex4sv)(const GLshort *);
+   void (GLAPIENTRY * ClipPlane)(GLenum, const GLdouble *);
+   void (GLAPIENTRY * ColorMaterial)(GLenum, GLenum);
+   void (GLAPIENTRY * CullFace)(GLenum);
+   void (GLAPIENTRY * Fogf)(GLenum, GLfloat);
+   void (GLAPIENTRY * Fogfv)(GLenum, const GLfloat *);
+   void (GLAPIENTRY * Fogi)(GLenum, GLint);
+   void (GLAPIENTRY * Fogiv)(GLenum, const GLint *);
+   void (GLAPIENTRY * FrontFace)(GLenum);
+   void (GLAPIENTRY * Hint)(GLenum, GLenum);
+   void (GLAPIENTRY * Lightf)(GLenum, GLenum, GLfloat);
+   void (GLAPIENTRY * Lightfv)(GLenum, GLenum, const GLfloat *);
+   void (GLAPIENTRY * Lighti)(GLenum, GLenum, GLint);
+   void (GLAPIENTRY * Lightiv)(GLenum, GLenum, const GLint *);
+   void (GLAPIENTRY * LightModelf)(GLenum, GLfloat);
+   void (GLAPIENTRY * LightModelfv)(GLenum, const GLfloat *);
+   void (GLAPIENTRY * LightModeli)(GLenum, GLint);
+   void (GLAPIENTRY * LightModeliv)(GLenum, const GLint *);
+   void (GLAPIENTRY * LineStipple)(GLint, GLushort);
+   void (GLAPIENTRY * LineWidth)(GLfloat);
+   void (GLAPIENTRY * Materialf)(GLenum, GLenum, GLfloat);
+   void (GLAPIENTRY * Materialfv)(GLenum, GLenum, const GLfloat *);
+   void (GLAPIENTRY * Materiali)(GLenum, GLenum, GLint);
+   void (GLAPIENTRY * Materialiv)(GLenum, GLenum, const GLint *);
+   void (GLAPIENTRY * PointSize)(GLfloat);
+   void (GLAPIENTRY * PolygonMode)(GLenum, GLenum);
+   void (GLAPIENTRY * PolygonStipple)(const GLubyte *);
+   void (GLAPIENTRY * Scissor)(GLint, GLint, GLsizei, GLsizei);
+   void (GLAPIENTRY * ShadeModel)(GLenum);
+   void (GLAPIENTRY * TexParameterf)(GLenum, GLenum, GLfloat);
+   void (GLAPIENTRY * TexParameterfv)(GLenum, GLenum, const GLfloat *);
+   void (GLAPIENTRY * TexParameteri)(GLenum, GLenum, GLint);
+   void (GLAPIENTRY * TexParameteriv)(GLenum, GLenum, const GLint *);
+   void (GLAPIENTRY * TexImage1D)(GLenum, GLint, GLint, GLsizei, GLint, GLenum, GLenum, const GLvoid *);
+   void (GLAPIENTRY * TexImage2D)(GLenum, GLint, GLint, GLsizei, GLsizei, GLint, GLenum, GLenum, const GLvoid *);
+   void (GLAPIENTRY * TexEnvf)(GLenum, GLenum, GLfloat);
+   void (GLAPIENTRY * TexEnvfv)(GLenum, GLenum, const GLfloat *);
+   void (GLAPIENTRY * TexEnvi)(GLenum, GLenum, GLint);
+   void (GLAPIENTRY * TexEnviv)(GLenum, GLenum, const GLint *);
+   void (GLAPIENTRY * TexGend)(GLenum, GLenum, GLdouble);
+   void (GLAPIENTRY * TexGendv)(GLenum, GLenum, const GLdouble *);
+   void (GLAPIENTRY * TexGenf)(GLenum, GLenum, GLfloat);
+   void (GLAPIENTRY * TexGenfv)(GLenum, GLenum, const GLfloat *);
+   void (GLAPIENTRY * TexGeni)(GLenum, GLenum, GLint);
+   void (GLAPIENTRY * TexGeniv)(GLenum, GLenum, const GLint *);
+   void (GLAPIENTRY * FeedbackBuffer)(GLsizei, GLenum, GLfloat *);
+   void (GLAPIENTRY * SelectBuffer)(GLsizei, GLuint *);
+   GLint (GLAPIENTRY * RenderMode)(GLenum);
+   void (GLAPIENTRY * InitNames)(void);
+   void (GLAPIENTRY * LoadName)(GLuint);
+   void (GLAPIENTRY * PassThrough)(GLfloat);
+   void (GLAPIENTRY * PopName)(void);
+   void (GLAPIENTRY * PushName)(GLuint);
+   void (GLAPIENTRY * DrawBuffer)(GLenum);
+   void (GLAPIENTRY * Clear)(GLbitfield);
+   void (GLAPIENTRY * ClearAccum)(GLfloat, GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * ClearIndex)(GLfloat);
+   void (GLAPIENTRY * ClearColor)(GLclampf, GLclampf, GLclampf, GLclampf);
+   void (GLAPIENTRY * ClearStencil)(GLint);
+   void (GLAPIENTRY * ClearDepth)(GLclampd);
+   void (GLAPIENTRY * StencilMask)(GLuint);
+   void (GLAPIENTRY * ColorMask)(GLboolean, GLboolean, GLboolean, GLboolean);
+   void (GLAPIENTRY * DepthMask)(GLboolean);
+   void (GLAPIENTRY * IndexMask)(GLuint);
+   void (GLAPIENTRY * Accum)(GLenum, GLfloat);
+   void (GLAPIENTRY * Disable)(GLenum);
+   void (GLAPIENTRY * Enable)(GLenum);
+   void (GLAPIENTRY * Finish)(void);
+   void (GLAPIENTRY * Flush)(void);
+   void (GLAPIENTRY * PopAttrib)(void);
+   void (GLAPIENTRY * PushAttrib)(GLbitfield);
+   void (GLAPIENTRY * Map1d)(GLenum, GLdouble, GLdouble, GLint, GLint, const GLdouble *);
+   void (GLAPIENTRY * Map1f)(GLenum, GLfloat, GLfloat, GLint, GLint, const GLfloat *);
+   void (GLAPIENTRY * Map2d)(GLenum, GLdouble, GLdouble, GLint, GLint, GLdouble, GLdouble, GLint, GLint, const GLdouble *);
+   void (GLAPIENTRY * Map2f)(GLenum, GLfloat, GLfloat, GLint, GLint, GLfloat, GLfloat, GLint, GLint, const GLfloat *);
+   void (GLAPIENTRY * MapGrid1d)(GLint, GLdouble, GLdouble);
+   void (GLAPIENTRY * MapGrid1f)(GLint, GLfloat, GLfloat);
+   void (GLAPIENTRY * MapGrid2d)(GLint, GLdouble, GLdouble, GLint, GLdouble, GLdouble);
+   void (GLAPIENTRY * MapGrid2f)(GLint, GLfloat, GLfloat, GLint, GLfloat, GLfloat);
+   void (GLAPIENTRY * EvalCoord1d)(GLdouble);
+   void (GLAPIENTRY * EvalCoord1dv)(const GLdouble *);
+   void (GLAPIENTRY * EvalCoord1f)(GLfloat);
+   void (GLAPIENTRY * EvalCoord1fv)(const GLfloat *);
+   void (GLAPIENTRY * EvalCoord2d)(GLdouble, GLdouble);
+   void (GLAPIENTRY * EvalCoord2dv)(const GLdouble *);
+   void (GLAPIENTRY * EvalCoord2f)(GLfloat, GLfloat);
+   void (GLAPIENTRY * EvalCoord2fv)(const GLfloat *);
+   void (GLAPIENTRY * EvalMesh1)(GLenum, GLint, GLint);
+   void (GLAPIENTRY * EvalPoint1)(GLint);
+   void (GLAPIENTRY * EvalMesh2)(GLenum, GLint, GLint, GLint, GLint);
+   void (GLAPIENTRY * EvalPoint2)(GLint, GLint);
+   void (GLAPIENTRY * AlphaFunc)(GLenum, GLclampf);
+   void (GLAPIENTRY * BlendFunc)(GLenum, GLenum);
+   void (GLAPIENTRY * LogicOp)(GLenum);
+   void (GLAPIENTRY * StencilFunc)(GLenum, GLint, GLuint);
+   void (GLAPIENTRY * StencilOp)(GLenum, GLenum, GLenum);
+   void (GLAPIENTRY * DepthFunc)(GLenum);
+   void (GLAPIENTRY * PixelZoom)(GLfloat, GLfloat);
+   void (GLAPIENTRY * PixelTransferf)(GLenum, GLfloat);
+   void (GLAPIENTRY * PixelTransferi)(GLenum, GLint);
+   void (GLAPIENTRY * PixelStoref)(GLenum, GLfloat);
+   void (GLAPIENTRY * PixelStorei)(GLenum, GLint);
+   void (GLAPIENTRY * PixelMapfv)(GLenum, GLint, const GLfloat *);
+   void (GLAPIENTRY * PixelMapuiv)(GLenum, GLint, const GLuint *);
+   void (GLAPIENTRY * PixelMapusv)(GLenum, GLint, const GLushort *);
+   void (GLAPIENTRY * ReadBuffer)(GLenum);
+   void (GLAPIENTRY * CopyPixels)(GLint, GLint, GLsizei, GLsizei, GLenum);
+   void (GLAPIENTRY * ReadPixels)(GLint, GLint, GLsizei, GLsizei, GLenum, GLenum, GLvoid *);
+   void (GLAPIENTRY * DrawPixels)(GLsizei, GLsizei, GLenum, GLenum, const GLvoid *);
+   void (GLAPIENTRY * GetBooleanv)(GLenum, GLboolean *);
+   void (GLAPIENTRY * GetClipPlane)(GLenum, GLdouble *);
+   void (GLAPIENTRY * GetDoublev)(GLenum, GLdouble *);
+   GLenum (GLAPIENTRY * GetError)(void);
+   void (GLAPIENTRY * GetFloatv)(GLenum, GLfloat *);
+   void (GLAPIENTRY * GetIntegerv)(GLenum, GLint *);
+   void (GLAPIENTRY * GetLightfv)(GLenum, GLenum, GLfloat *);
+   void (GLAPIENTRY * GetLightiv)(GLenum, GLenum, GLint *);
+   void (GLAPIENTRY * GetMapdv)(GLenum, GLenum, GLdouble *);
+   void (GLAPIENTRY * GetMapfv)(GLenum, GLenum, GLfloat *);
+   void (GLAPIENTRY * GetMapiv)(GLenum, GLenum, GLint *);
+   void (GLAPIENTRY * GetMaterialfv)(GLenum, GLenum, GLfloat *);
+   void (GLAPIENTRY * GetMaterialiv)(GLenum, GLenum, GLint *);
+   void (GLAPIENTRY * GetPixelMapfv)(GLenum, GLfloat *);
+   void (GLAPIENTRY * GetPixelMapuiv)(GLenum, GLuint *);
+   void (GLAPIENTRY * GetPixelMapusv)(GLenum, GLushort *);
+   void (GLAPIENTRY * GetPolygonStipple)(GLubyte *);
+   const GLubyte * (GLAPIENTRY * GetString)(GLenum);
+   void (GLAPIENTRY * GetTexEnvfv)(GLenum, GLenum, GLfloat *);
+   void (GLAPIENTRY * GetTexEnviv)(GLenum, GLenum, GLint *);
+   void (GLAPIENTRY * GetTexGendv)(GLenum, GLenum, GLdouble *);
+   void (GLAPIENTRY * GetTexGenfv)(GLenum, GLenum, GLfloat *);
+   void (GLAPIENTRY * GetTexGeniv)(GLenum, GLenum, GLint *);
+   void (GLAPIENTRY * GetTexImage)(GLenum, GLint, GLenum, GLenum, GLvoid *);
+   void (GLAPIENTRY * GetTexParameterfv)(GLenum, GLenum, GLfloat *);
+   void (GLAPIENTRY * GetTexParameteriv)(GLenum, GLenum, GLint *);
+   void (GLAPIENTRY * GetTexLevelParameterfv)(GLenum, GLint, GLenum, GLfloat *);
+   void (GLAPIENTRY * GetTexLevelParameteriv)(GLenum, GLint, GLenum, GLint *);
+   GLboolean (GLAPIENTRY * IsEnabled)(GLenum);
+   GLboolean (GLAPIENTRY * IsList)(GLuint);
+   void (GLAPIENTRY * DepthRange)(GLclampd, GLclampd);
+   void (GLAPIENTRY * Frustum)(GLdouble, GLdouble, GLdouble, GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * LoadIdentity)(void);
+   void (GLAPIENTRY * LoadMatrixf)(const GLfloat *);
+   void (GLAPIENTRY * LoadMatrixd)(const GLdouble *);
+   void (GLAPIENTRY * MatrixMode)(GLenum);
+   void (GLAPIENTRY * MultMatrixf)(const GLfloat *);
+   void (GLAPIENTRY * MultMatrixd)(const GLdouble *);
+   void (GLAPIENTRY * Ortho)(GLdouble, GLdouble, GLdouble, GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * PopMatrix)(void);
+   void (GLAPIENTRY * PushMatrix)(void);
+   void (GLAPIENTRY * Rotated)(GLdouble, GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * Rotatef)(GLfloat, GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * Scaled)(GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * Scalef)(GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * Translated)(GLdouble, GLdouble, GLdouble);
+   void (GLAPIENTRY * Translatef)(GLfloat, GLfloat, GLfloat);
+   void (GLAPIENTRY * Viewport)(GLint, GLint, GLsizei, GLsizei);
+   void (GLAPIENTRY * ArrayElement)(GLint);
+   void (GLAPIENTRY * BindTexture)(GLenum, GLuint);
+   void (GLAPIENTRY * ColorPointer)(GLint, GLenum, GLsizei, const GLvoid *);
+   void (GLAPIENTRY * DisableClientState)(GLenum);
+   void (GLAPIENTRY * DrawArrays)(GLenum, GLint, GLsizei);
+   void (GLAPIENTRY * DrawElements)(GLenum, GLsizei, GLenum, const GLvoid *);
+   void (GLAPIENTRY * EdgeFlagPointer)(GLsizei, const GLvoid *);
+   void (GLAPIENTRY * EnableClientState)(GLenum);
+   void (GLAPIENTRY * IndexPointer)(GLenum, GLsizei, const GLvoid *);
+   void (GLAPIENTRY * Indexub)(GLubyte);
+   void (GLAPIENTRY * Indexubv)(const GLubyte *);
+   void (GLAPIENTRY * InterleavedArrays)(GLenum, GLsizei, const GLvoid *);
+   void (GLAPIENTRY * NormalPointer)(GLenum, GLsizei, const GLvoid *);
+   void (GLAPIENTRY * PolygonOffset)(GLfloat, GLfloat);
+   void (GLAPIENTRY * TexCoordPointer)(GLint, GLenum, GLsizei, const GLvoid *);
+   void (GLAPIENTRY * VertexPointer)(GLint, GLenum, GLsizei, const GLvoid *);
+   GLboolean (GLAPIENTRY * AreTexturesResident)(GLsizei, const GLuint *, GLboolean *);
+   void (GLAPIENTRY * CopyTexImage1D)(GLenum, GLint, GLenum, GLint, GLint, GLsizei, GLint);
+   void (GLAPIENTRY * CopyTexImage2D)(GLenum, GLint, GLenum, GLint, GLint, GLsizei, GLsizei, GLint);
+   void (GLAPIENTRY * CopyTexSubImage1D)(GLenum, GLint, GLint, GLint, GLint, GLsizei);
+   void (GLAPIENTRY * CopyTexSubImage2D)(GLenum, GLint, GLint, GLint, GLint, GLint, GLsizei, GLsizei);
+   void (GLAPIENTRY * DeleteTextures)(GLsizei, const GLuint *);
+   void (GLAPIENTRY * GenTextures)(GLsizei, GLuint *);
+   void (GLAPIENTRY * GetPointerv)(GLenum, GLvoid **);
+   GLboolean (GLAPIENTRY * IsTexture)(GLuint);
+   void (GLAPIENTRY * PrioritizeTextures)(GLsizei, const GLuint *, const GLclampf *);
+   void (GLAPIENTRY * TexSubImage1D)(GLenum, GLint, GLint, GLsizei, GLenum, GLenum, const GLvoid *);
+   void (GLAPIENTRY * TexSubImage2D)(GLenum, GLint, GLint, GLint, GLsizei, GLsizei, GLenum, GLenum, const GLvoid *);
+   void (GLAPIENTRY * PopClientAttrib)(void);
+   void (GLAPIENTRY * PushClientAttrib)(GLbitfield);
+};
+
+typedef struct __GLdispatchTableRec GLDISPATCHTABLE;
+
+typedef struct _GLCLTPROCTABLE
+{
+   int cEntries;
+   GLDISPATCHTABLE glDispatchTable;
+} GLCLTPROCTABLE, * PGLCLTPROCTABLE;
+
+typedef VOID (APIENTRY * PFN_SETPROCTABLE)(PGLCLTPROCTABLE);
+
+BOOL APIENTRY
+DrvCopyContext(
+   DHGLRC dhrcSource,
+   DHGLRC dhrcDest,
+   UINT fuMask );
+
+DHGLRC APIENTRY
+DrvCreateLayerContext(
+   HDC hdc,
+   INT iLayerPlane );
+
+DHGLRC APIENTRY
+DrvCreateContext(
+   HDC hdc );
+
+BOOL APIENTRY
+DrvDeleteContext(
+   DHGLRC dhglrc );
+
+BOOL APIENTRY
+DrvDescribeLayerPlane(
+   HDC hdc,
+   INT iPixelFormat,
+   INT iLayerPlane,
+   UINT nBytes,
+   LPLAYERPLANEDESCRIPTOR plpd );
+
+LONG APIENTRY
+DrvDescribePixelFormat(
+   HDC hdc,
+   INT iPixelFormat,
+   ULONG cjpfd,
+   PIXELFORMATDESCRIPTOR *ppfd );
+
+int APIENTRY
+DrvGetLayerPaletteEntries(
+   HDC hdc,
+   INT iLayerPlane,
+   INT iStart,
+   INT cEntries,
+   COLORREF *pcr );
+
+PROC APIENTRY
+DrvGetProcAddress(
+   LPCSTR lpszProc );
+
+BOOL APIENTRY
+DrvRealizeLayerPalette(
+   HDC hdc,
+   INT iLayerPlane,
+   BOOL bRealize );
+
+BOOL APIENTRY
+DrvReleaseContext(
+   DHGLRC dhglrc );
+
+void APIENTRY
+DrvSetCallbackProcs(
+   INT nProcs,
+   PROC *pProcs );
+
+PGLCLTPROCTABLE APIENTRY
+DrvSetContext(
+   HDC hdc,
+   DHGLRC dhglrc,
+   PFN_SETPROCTABLE pfnSetProcTable );
+
+int APIENTRY
+DrvSetLayerPaletteEntries(
+   HDC hdc,
+   INT iLayerPlane,
+   INT iStart,
+   INT cEntries,
+   CONST COLORREF *pcr );
+
+BOOL APIENTRY
+DrvSetPixelFormat(
+   HDC hdc,
+   LONG iPixelFormat );
+
+BOOL APIENTRY
+DrvShareLists(
+   DHGLRC dhglrc1,
+   DHGLRC dhglrc2 );
+
+BOOL APIENTRY
+DrvSwapBuffers(
+   HDC hdc );
+
+BOOL APIENTRY
+DrvSwapLayerBuffers(
+   HDC hdc,
+   UINT fuPlanes );
+
+BOOL APIENTRY
+DrvValidateVersion(
+   ULONG ulVersion );
+
+#endif /* STW_ICD_H */
diff --git a/src/gallium/state_trackers/wgl/opengl32.def b/src/gallium/state_trackers/wgl/opengl32.def
new file mode 100644
index 0000000000..596417ed84
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/opengl32.def
@@ -0,0 +1,388 @@
+EXPORTS
+;	GlmfBeginGlsBlock
+;	GlmfCloseMetaFile
+;	GlmfEndGlsBlock
+;	GlmfEndPlayback
+;	GlmfInitPlayback
+;	GlmfPlayGlsRecord
+	glAccum
+	glAlphaFunc
+	glAreTexturesResident
+	glArrayElement
+	glBegin
+	glBindTexture
+	glBitmap
+	glBlendFunc
+	glCallList
+	glCallLists
+	glClear
+	glClearAccum
+	glClearColor
+	glClearDepth
+	glClearIndex
+	glClearStencil
+	glClipPlane
+	glColor3b
+	glColor3bv
+	glColor3d
+	glColor3dv
+	glColor3f
+	glColor3fv
+	glColor3i
+	glColor3iv
+	glColor3s
+	glColor3sv
+	glColor3ub
+	glColor3ubv
+	glColor3ui
+	glColor3uiv
+	glColor3us
+	glColor3usv
+	glColor4b
+	glColor4bv
+	glColor4d
+	glColor4dv
+	glColor4f
+	glColor4fv
+	glColor4i
+	glColor4iv
+	glColor4s
+	glColor4sv
+	glColor4ub
+	glColor4ubv
+	glColor4ui
+	glColor4uiv
+	glColor4us
+	glColor4usv
+	glColorMask
+	glColorMaterial
+	glColorPointer
+	glCopyPixels
+	glCopyTexImage1D
+	glCopyTexImage2D
+	glCopyTexSubImage1D
+	glCopyTexSubImage2D
+	glCullFace
+;	glDebugEntry
+	glDeleteLists
+	glDeleteTextures
+	glDepthFunc
+	glDepthMask
+	glDepthRange
+	glDisable
+	glDisableClientState
+	glDrawArrays
+	glDrawBuffer
+	glDrawElements
+	glDrawPixels
+	glEdgeFlag
+	glEdgeFlagPointer
+	glEdgeFlagv
+	glEnable
+	glEnableClientState
+	glEnd
+	glEndList
+	glEvalCoord1d
+	glEvalCoord1dv
+	glEvalCoord1f
+	glEvalCoord1fv
+	glEvalCoord2d
+	glEvalCoord2dv
+	glEvalCoord2f
+	glEvalCoord2fv
+	glEvalMesh1
+	glEvalMesh2
+	glEvalPoint1
+	glEvalPoint2
+	glFeedbackBuffer
+	glFinish
+	glFlush
+	glFogf
+	glFogfv
+	glFogi
+	glFogiv
+	glFrontFace
+	glFrustum
+	glGenLists
+	glGenTextures
+	glGetBooleanv
+	glGetClipPlane
+	glGetDoublev
+	glGetError
+	glGetFloatv
+	glGetIntegerv
+	glGetLightfv
+	glGetLightiv
+	glGetMapdv
+	glGetMapfv
+	glGetMapiv
+	glGetMaterialfv
+	glGetMaterialiv
+	glGetPixelMapfv
+	glGetPixelMapuiv
+	glGetPixelMapusv
+	glGetPointerv
+	glGetPolygonStipple
+	glGetString
+	glGetTexEnvfv
+	glGetTexEnviv
+	glGetTexGendv
+	glGetTexGenfv
+	glGetTexGeniv
+	glGetTexImage
+	glGetTexLevelParameterfv
+	glGetTexLevelParameteriv
+	glGetTexParameterfv
+	glGetTexParameteriv
+	glHint
+	glIndexMask
+	glIndexPointer
+	glIndexd
+	glIndexdv
+	glIndexf
+	glIndexfv
+	glIndexi
+	glIndexiv
+	glIndexs
+	glIndexsv
+	glIndexub
+	glIndexubv
+	glInitNames
+	glInterleavedArrays
+	glIsEnabled
+	glIsList
+	glIsTexture
+	glLightModelf
+	glLightModelfv
+	glLightModeli
+	glLightModeliv
+	glLightf
+	glLightfv
+	glLighti
+	glLightiv
+	glLineStipple
+	glLineWidth
+	glListBase
+	glLoadIdentity
+	glLoadMatrixd
+	glLoadMatrixf
+	glLoadName
+	glLogicOp
+	glMap1d
+	glMap1f
+	glMap2d
+	glMap2f
+	glMapGrid1d
+	glMapGrid1f
+	glMapGrid2d
+	glMapGrid2f
+	glMaterialf
+	glMaterialfv
+	glMateriali
+	glMaterialiv
+	glMatrixMode
+	glMultMatrixd
+	glMultMatrixf
+	glNewList
+	glNormal3b
+	glNormal3bv
+	glNormal3d
+	glNormal3dv
+	glNormal3f
+	glNormal3fv
+	glNormal3i
+	glNormal3iv
+	glNormal3s
+	glNormal3sv
+	glNormalPointer
+	glOrtho
+	glPassThrough
+	glPixelMapfv
+	glPixelMapuiv
+	glPixelMapusv
+	glPixelStoref
+	glPixelStorei
+	glPixelTransferf
+	glPixelTransferi
+	glPixelZoom
+	glPointSize
+	glPolygonMode
+	glPolygonOffset
+	glPolygonStipple
+	glPopAttrib
+	glPopClientAttrib
+	glPopMatrix
+	glPopName
+	glPrioritizeTextures
+	glPushAttrib
+	glPushClientAttrib
+	glPushMatrix
+	glPushName
+	glRasterPos2d
+	glRasterPos2dv
+	glRasterPos2f
+	glRasterPos2fv
+	glRasterPos2i
+	glRasterPos2iv
+	glRasterPos2s
+	glRasterPos2sv
+	glRasterPos3d
+	glRasterPos3dv
+	glRasterPos3f
+	glRasterPos3fv
+	glRasterPos3i
+	glRasterPos3iv
+	glRasterPos3s
+	glRasterPos3sv
+	glRasterPos4d
+	glRasterPos4dv
+	glRasterPos4f
+	glRasterPos4fv
+	glRasterPos4i
+	glRasterPos4iv
+	glRasterPos4s
+	glRasterPos4sv
+	glReadBuffer
+	glReadPixels
+	glRectd
+	glRectdv
+	glRectf
+	glRectfv
+	glRecti
+	glRectiv
+	glRects
+	glRectsv
+	glRenderMode
+	glRotated
+	glRotatef
+	glScaled
+	glScalef
+	glScissor
+	glSelectBuffer
+	glShadeModel
+	glStencilFunc
+	glStencilMask
+	glStencilOp
+	glTexCoord1d
+	glTexCoord1dv
+	glTexCoord1f
+	glTexCoord1fv
+	glTexCoord1i
+	glTexCoord1iv
+	glTexCoord1s
+	glTexCoord1sv
+	glTexCoord2d
+	glTexCoord2dv
+	glTexCoord2f
+	glTexCoord2fv
+	glTexCoord2i
+	glTexCoord2iv
+	glTexCoord2s
+	glTexCoord2sv
+	glTexCoord3d
+	glTexCoord3dv
+	glTexCoord3f
+	glTexCoord3fv
+	glTexCoord3i
+	glTexCoord3iv
+	glTexCoord3s
+	glTexCoord3sv
+	glTexCoord4d
+	glTexCoord4dv
+	glTexCoord4f
+	glTexCoord4fv
+	glTexCoord4i
+	glTexCoord4iv
+	glTexCoord4s
+	glTexCoord4sv
+	glTexCoordPointer
+	glTexEnvf
+	glTexEnvfv
+	glTexEnvi
+	glTexEnviv
+	glTexGend
+	glTexGendv
+	glTexGenf
+	glTexGenfv
+	glTexGeni
+	glTexGeniv
+	glTexImage1D
+	glTexImage2D
+	glTexParameterf
+	glTexParameterfv
+	glTexParameteri
+	glTexParameteriv
+	glTexSubImage1D
+	glTexSubImage2D
+	glTranslated
+	glTranslatef
+	glVertex2d
+	glVertex2dv
+	glVertex2f
+	glVertex2fv
+	glVertex2i
+	glVertex2iv
+	glVertex2s
+	glVertex2sv
+	glVertex3d
+	glVertex3dv
+	glVertex3f
+	glVertex3fv
+	glVertex3i
+	glVertex3iv
+	glVertex3s
+	glVertex3sv
+	glVertex4d
+	glVertex4dv
+	glVertex4f
+	glVertex4fv
+	glVertex4i
+	glVertex4iv
+	glVertex4s
+	glVertex4sv
+	glVertexPointer
+	glViewport
+	wglChoosePixelFormat
+	wglCopyContext
+	wglCreateContext
+	wglCreateLayerContext
+	wglDeleteContext
+	wglDescribeLayerPlane
+	wglDescribePixelFormat
+	wglGetCurrentContext
+	wglGetCurrentDC
+;	wglGetDefaultProcAddress
+	wglGetLayerPaletteEntries
+	wglGetPixelFormat
+	wglGetProcAddress
+	wglMakeCurrent
+	wglRealizeLayerPalette
+	wglSetLayerPaletteEntries
+	wglSetPixelFormat
+	wglShareLists
+	wglSwapBuffers
+	wglSwapLayerBuffers
+;	wglSwapMultipleBuffers
+	wglUseFontBitmapsA
+	wglUseFontBitmapsW
+	wglUseFontOutlinesA
+	wglUseFontOutlinesW
+	wglGetExtensionsStringARB
+	DrvCopyContext
+	DrvCreateContext
+	DrvCreateLayerContext
+	DrvDeleteContext
+	DrvDescribeLayerPlane
+	DrvDescribePixelFormat
+	DrvGetLayerPaletteEntries
+	DrvGetProcAddress
+	DrvRealizeLayerPalette
+	DrvReleaseContext
+	DrvSetCallbackProcs
+	DrvSetContext
+	DrvSetLayerPaletteEntries
+	DrvSetPixelFormat
+	DrvShareLists
+	DrvSwapBuffers
+	DrvSwapLayerBuffers
+	DrvValidateVersion
diff --git a/src/gallium/state_trackers/wgl/opengl32.mingw.def b/src/gallium/state_trackers/wgl/opengl32.mingw.def
new file mode 100644
index 0000000000..1f03ea3b37
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/opengl32.mingw.def
@@ -0,0 +1,387 @@
+EXPORTS
+;	GlmfBeginGlsBlock = GlmfBeginGlsBlock@4
+;	GlmfCloseMetaFile = GlmfCloseMetaFile@4
+;	GlmfEndGlsBlock = GlmfEndGlsBlock@4
+;	GlmfEndPlayback = GlmfEndPlayback@4
+;	GlmfInitPlayback = GlmfInitPlayback@12
+;	GlmfPlayGlsRecord = GlmfPlayGlsRecord@16
+	glAccum = glAccum@8
+	glAlphaFunc = glAlphaFunc@8
+	glAreTexturesResident = glAreTexturesResident@12
+	glArrayElement = glArrayElement@4
+	glBegin = glBegin@4
+	glBindTexture = glBindTexture@8
+	glBitmap = glBitmap@28
+	glBlendFunc = glBlendFunc@8
+	glCallList = glCallList@4
+	glCallLists = glCallLists@12
+	glClear = glClear@4
+	glClearAccum = glClearAccum@16
+	glClearColor = glClearColor@16
+	glClearDepth = glClearDepth@8
+	glClearIndex = glClearIndex@4
+	glClearStencil = glClearStencil@4
+	glClipPlane = glClipPlane@8
+	glColor3b = glColor3b@12
+	glColor3bv = glColor3bv@4
+	glColor3d = glColor3d@24
+	glColor3dv = glColor3dv@4
+	glColor3f = glColor3f@12
+	glColor3fv = glColor3fv@4
+	glColor3i = glColor3i@12
+	glColor3iv = glColor3iv@4
+	glColor3s = glColor3s@12
+	glColor3sv = glColor3sv@4
+	glColor3ub = glColor3ub@12
+	glColor3ubv = glColor3ubv@4
+	glColor3ui = glColor3ui@12
+	glColor3uiv = glColor3uiv@4
+	glColor3us = glColor3us@12
+	glColor3usv = glColor3usv@4
+	glColor4b = glColor4b@16
+	glColor4bv = glColor4bv@4
+	glColor4d = glColor4d@32
+	glColor4dv = glColor4dv@4
+	glColor4f = glColor4f@16
+	glColor4fv = glColor4fv@4
+	glColor4i = glColor4i@16
+	glColor4iv = glColor4iv@4
+	glColor4s = glColor4s@16
+	glColor4sv = glColor4sv@4
+	glColor4ub = glColor4ub@16
+	glColor4ubv = glColor4ubv@4
+	glColor4ui = glColor4ui@16
+	glColor4uiv = glColor4uiv@4
+	glColor4us = glColor4us@16
+	glColor4usv = glColor4usv@4
+	glColorMask = glColorMask@16
+	glColorMaterial = glColorMaterial@8
+	glColorPointer = glColorPointer@16
+	glCopyPixels = glCopyPixels@20
+	glCopyTexImage1D = glCopyTexImage1D@28
+	glCopyTexImage2D = glCopyTexImage2D@32
+	glCopyTexSubImage1D = glCopyTexSubImage1D@24
+	glCopyTexSubImage2D = glCopyTexSubImage2D@32
+	glCullFace = glCullFace@4
+;	glDebugEntry = glDebugEntry@8
+	glDeleteLists = glDeleteLists@8
+	glDeleteTextures = glDeleteTextures@8
+	glDepthFunc = glDepthFunc@4
+	glDepthMask = glDepthMask@4
+	glDepthRange = glDepthRange@16
+	glDisable = glDisable@4
+	glDisableClientState = glDisableClientState@4
+	glDrawArrays = glDrawArrays@12
+	glDrawBuffer = glDrawBuffer@4
+	glDrawElements = glDrawElements@16
+	glDrawPixels = glDrawPixels@20
+	glEdgeFlag = glEdgeFlag@4
+	glEdgeFlagPointer = glEdgeFlagPointer@8
+	glEdgeFlagv = glEdgeFlagv@4
+	glEnable = glEnable@4
+	glEnableClientState = glEnableClientState@4
+	glEnd = glEnd@0
+	glEndList = glEndList@0
+	glEvalCoord1d = glEvalCoord1d@8
+	glEvalCoord1dv = glEvalCoord1dv@4
+	glEvalCoord1f = glEvalCoord1f@4
+	glEvalCoord1fv = glEvalCoord1fv@4
+	glEvalCoord2d = glEvalCoord2d@16
+	glEvalCoord2dv = glEvalCoord2dv@4
+	glEvalCoord2f = glEvalCoord2f@8
+	glEvalCoord2fv = glEvalCoord2fv@4
+	glEvalMesh1 = glEvalMesh1@12
+	glEvalMesh2 = glEvalMesh2@20
+	glEvalPoint1 = glEvalPoint1@4
+	glEvalPoint2 = glEvalPoint2@8
+	glFeedbackBuffer = glFeedbackBuffer@12
+	glFinish = glFinish@0
+	glFlush = glFlush@0
+	glFogf = glFogf@8
+	glFogfv = glFogfv@8
+	glFogi = glFogi@8
+	glFogiv = glFogiv@8
+	glFrontFace = glFrontFace@4
+	glFrustum = glFrustum@48
+	glGenLists = glGenLists@4
+	glGenTextures = glGenTextures@8
+	glGetBooleanv = glGetBooleanv@8
+	glGetClipPlane = glGetClipPlane@8
+	glGetDoublev = glGetDoublev@8
+	glGetError = glGetError@0
+	glGetFloatv = glGetFloatv@8
+	glGetIntegerv = glGetIntegerv@8
+	glGetLightfv = glGetLightfv@12
+	glGetLightiv = glGetLightiv@12
+	glGetMapdv = glGetMapdv@12
+	glGetMapfv = glGetMapfv@12
+	glGetMapiv = glGetMapiv@12
+	glGetMaterialfv = glGetMaterialfv@12
+	glGetMaterialiv = glGetMaterialiv@12
+	glGetPixelMapfv = glGetPixelMapfv@8
+	glGetPixelMapuiv = glGetPixelMapuiv@8
+	glGetPixelMapusv = glGetPixelMapusv@8
+	glGetPointerv = glGetPointerv@8
+	glGetPolygonStipple = glGetPolygonStipple@4
+	glGetString = glGetString@4
+	glGetTexEnvfv = glGetTexEnvfv@12
+	glGetTexEnviv = glGetTexEnviv@12
+	glGetTexGendv = glGetTexGendv@12
+	glGetTexGenfv = glGetTexGenfv@12
+	glGetTexGeniv = glGetTexGeniv@12
+	glGetTexImage = glGetTexImage@20
+	glGetTexLevelParameterfv = glGetTexLevelParameterfv@16
+	glGetTexLevelParameteriv = glGetTexLevelParameteriv@16
+	glGetTexParameterfv = glGetTexParameterfv@12
+	glGetTexParameteriv = glGetTexParameteriv@12
+	glHint = glHint@8
+	glIndexMask = glIndexMask@4
+	glIndexPointer = glIndexPointer@12
+	glIndexd = glIndexd@8
+	glIndexdv = glIndexdv@4
+	glIndexf = glIndexf@4
+	glIndexfv = glIndexfv@4
+	glIndexi = glIndexi@4
+	glIndexiv = glIndexiv@4
+	glIndexs = glIndexs@4
+	glIndexsv = glIndexsv@4
+	glIndexub = glIndexub@4
+	glIndexubv = glIndexubv@4
+	glInitNames = glInitNames@0
+	glInterleavedArrays = glInterleavedArrays@12
+	glIsEnabled = glIsEnabled@4
+	glIsList = glIsList@4
+	glIsTexture = glIsTexture@4
+	glLightModelf = glLightModelf@8
+	glLightModelfv = glLightModelfv@8
+	glLightModeli = glLightModeli@8
+	glLightModeliv = glLightModeliv@8
+	glLightf = glLightf@12
+	glLightfv = glLightfv@12
+	glLighti = glLighti@12
+	glLightiv = glLightiv@12
+	glLineStipple = glLineStipple@8
+	glLineWidth = glLineWidth@4
+	glListBase = glListBase@4
+	glLoadIdentity = glLoadIdentity@0
+	glLoadMatrixd = glLoadMatrixd@4
+	glLoadMatrixf = glLoadMatrixf@4
+	glLoadName = glLoadName@4
+	glLogicOp = glLogicOp@4
+	glMap1d = glMap1d@32
+	glMap1f = glMap1f@24
+	glMap2d = glMap2d@56
+	glMap2f = glMap2f@40
+	glMapGrid1d = glMapGrid1d@20
+	glMapGrid1f = glMapGrid1f@12
+	glMapGrid2d = glMapGrid2d@40
+	glMapGrid2f = glMapGrid2f@24
+	glMaterialf = glMaterialf@12
+	glMaterialfv = glMaterialfv@12
+	glMateriali = glMateriali@12
+	glMaterialiv = glMaterialiv@12
+	glMatrixMode = glMatrixMode@4
+	glMultMatrixd = glMultMatrixd@4
+	glMultMatrixf = glMultMatrixf@4
+	glNewList = glNewList@8
+	glNormal3b = glNormal3b@12
+	glNormal3bv = glNormal3bv@4
+	glNormal3d = glNormal3d@24
+	glNormal3dv = glNormal3dv@4
+	glNormal3f = glNormal3f@12
+	glNormal3fv = glNormal3fv@4
+	glNormal3i = glNormal3i@12
+	glNormal3iv = glNormal3iv@4
+	glNormal3s = glNormal3s@12
+	glNormal3sv = glNormal3sv@4
+	glNormalPointer = glNormalPointer@12
+	glOrtho = glOrtho@48
+	glPassThrough = glPassThrough@4
+	glPixelMapfv = glPixelMapfv@12
+	glPixelMapuiv = glPixelMapuiv@12
+	glPixelMapusv = glPixelMapusv@12
+	glPixelStoref = glPixelStoref@8
+	glPixelStorei = glPixelStorei@8
+	glPixelTransferf = glPixelTransferf@8
+	glPixelTransferi = glPixelTransferi@8
+	glPixelZoom = glPixelZoom@8
+	glPointSize = glPointSize@4
+	glPolygonMode = glPolygonMode@8
+	glPolygonOffset = glPolygonOffset@8
+	glPolygonStipple = glPolygonStipple@4
+	glPopAttrib = glPopAttrib@0
+	glPopClientAttrib = glPopClientAttrib@0
+	glPopMatrix = glPopMatrix@0
+	glPopName = glPopName@0
+	glPrioritizeTextures = glPrioritizeTextures@12
+	glPushAttrib = glPushAttrib@4
+	glPushClientAttrib = glPushClientAttrib@4
+	glPushMatrix = glPushMatrix@0
+	glPushName = glPushName@4
+	glRasterPos2d = glRasterPos2d@16
+	glRasterPos2dv = glRasterPos2dv@4
+	glRasterPos2f = glRasterPos2f@8
+	glRasterPos2fv = glRasterPos2fv@4
+	glRasterPos2i = glRasterPos2i@8
+	glRasterPos2iv = glRasterPos2iv@4
+	glRasterPos2s = glRasterPos2s@8
+	glRasterPos2sv = glRasterPos2sv@4
+	glRasterPos3d = glRasterPos3d@24
+	glRasterPos3dv = glRasterPos3dv@4
+	glRasterPos3f = glRasterPos3f@12
+	glRasterPos3fv = glRasterPos3fv@4
+	glRasterPos3i = glRasterPos3i@12
+	glRasterPos3iv = glRasterPos3iv@4
+	glRasterPos3s = glRasterPos3s@12
+	glRasterPos3sv = glRasterPos3sv@4
+	glRasterPos4d = glRasterPos4d@32
+	glRasterPos4dv = glRasterPos4dv@4
+	glRasterPos4f = glRasterPos4f@16
+	glRasterPos4fv = glRasterPos4fv@4
+	glRasterPos4i = glRasterPos4i@16
+	glRasterPos4iv = glRasterPos4iv@4
+	glRasterPos4s = glRasterPos4s@16
+	glRasterPos4sv = glRasterPos4sv@4
+	glReadBuffer = glReadBuffer@4
+	glReadPixels = glReadPixels@28
+	glRectd = glRectd@32
+	glRectdv = glRectdv@8
+	glRectf = glRectf@16
+	glRectfv = glRectfv@8
+	glRecti = glRecti@16
+	glRectiv = glRectiv@8
+	glRects = glRects@16
+	glRectsv = glRectsv@8
+	glRenderMode = glRenderMode@4
+	glRotated = glRotated@32
+	glRotatef = glRotatef@16
+	glScaled = glScaled@24
+	glScalef = glScalef@12
+	glScissor = glScissor@16
+	glSelectBuffer = glSelectBuffer@8
+	glShadeModel = glShadeModel@4
+	glStencilFunc = glStencilFunc@12
+	glStencilMask = glStencilMask@4
+	glStencilOp = glStencilOp@12
+	glTexCoord1d = glTexCoord1d@8
+	glTexCoord1dv = glTexCoord1dv@4
+	glTexCoord1f = glTexCoord1f@4
+	glTexCoord1fv = glTexCoord1fv@4
+	glTexCoord1i = glTexCoord1i@4
+	glTexCoord1iv = glTexCoord1iv@4
+	glTexCoord1s = glTexCoord1s@4
+	glTexCoord1sv = glTexCoord1sv@4
+	glTexCoord2d = glTexCoord2d@16
+	glTexCoord2dv = glTexCoord2dv@4
+	glTexCoord2f = glTexCoord2f@8
+	glTexCoord2fv = glTexCoord2fv@4
+	glTexCoord2i = glTexCoord2i@8
+	glTexCoord2iv = glTexCoord2iv@4
+	glTexCoord2s = glTexCoord2s@8
+	glTexCoord2sv = glTexCoord2sv@4
+	glTexCoord3d = glTexCoord3d@24
+	glTexCoord3dv = glTexCoord3dv@4
+	glTexCoord3f = glTexCoord3f@12
+	glTexCoord3fv = glTexCoord3fv@4
+	glTexCoord3i = glTexCoord3i@12
+	glTexCoord3iv = glTexCoord3iv@4
+	glTexCoord3s = glTexCoord3s@12
+	glTexCoord3sv = glTexCoord3sv@4
+	glTexCoord4d = glTexCoord4d@32
+	glTexCoord4dv = glTexCoord4dv@4
+	glTexCoord4f = glTexCoord4f@16
+	glTexCoord4fv = glTexCoord4fv@4
+	glTexCoord4i = glTexCoord4i@16
+	glTexCoord4iv = glTexCoord4iv@4
+	glTexCoord4s = glTexCoord4s@16
+	glTexCoord4sv = glTexCoord4sv@4
+	glTexCoordPointer = glTexCoordPointer@16
+	glTexEnvf = glTexEnvf@12
+	glTexEnvfv = glTexEnvfv@12
+	glTexEnvi = glTexEnvi@12
+	glTexEnviv = glTexEnviv@12
+	glTexGend = glTexGend@16
+	glTexGendv = glTexGendv@12
+	glTexGenf = glTexGenf@12
+	glTexGenfv = glTexGenfv@12
+	glTexGeni = glTexGeni@12
+	glTexGeniv = glTexGeniv@12
+	glTexImage1D = glTexImage1D@32
+	glTexImage2D = glTexImage2D@36
+	glTexParameterf = glTexParameterf@12
+	glTexParameterfv = glTexParameterfv@12
+	glTexParameteri = glTexParameteri@12
+	glTexParameteriv = glTexParameteriv@12
+	glTexSubImage1D = glTexSubImage1D@28
+	glTexSubImage2D = glTexSubImage2D@36
+	glTranslated = glTranslated@24
+	glTranslatef = glTranslatef@12
+	glVertex2d = glVertex2d@16
+	glVertex2dv = glVertex2dv@4
+	glVertex2f = glVertex2f@8
+	glVertex2fv = glVertex2fv@4
+	glVertex2i = glVertex2i@8
+	glVertex2iv = glVertex2iv@4
+	glVertex2s = glVertex2s@8
+	glVertex2sv = glVertex2sv@4
+	glVertex3d = glVertex3d@24
+	glVertex3dv = glVertex3dv@4
+	glVertex3f = glVertex3f@12
+	glVertex3fv = glVertex3fv@4
+	glVertex3i = glVertex3i@12
+	glVertex3iv = glVertex3iv@4
+	glVertex3s = glVertex3s@12
+	glVertex3sv = glVertex3sv@4
+	glVertex4d = glVertex4d@32
+	glVertex4dv = glVertex4dv@4
+	glVertex4f = glVertex4f@16
+	glVertex4fv = glVertex4fv@4
+	glVertex4i = glVertex4i@16
+	glVertex4iv = glVertex4iv@4
+	glVertex4s = glVertex4s@16
+	glVertex4sv = glVertex4sv@4
+	glVertexPointer = glVertexPointer@16
+	glViewport = glViewport@16
+	wglChoosePixelFormat = wglChoosePixelFormat@8
+	wglCopyContext = wglCopyContext@12
+	wglCreateContext = wglCreateContext@4
+	wglCreateLayerContext = wglCreateLayerContext@8
+	wglDeleteContext = wglDeleteContext@4
+	wglDescribeLayerPlane = wglDescribeLayerPlane@20
+	wglDescribePixelFormat = wglDescribePixelFormat@16
+	wglGetCurrentContext = wglGetCurrentContext@0
+	wglGetCurrentDC = wglGetCurrentDC@0
+;	wglGetDefaultProcAddress = wglGetDefaultProcAddress@4
+	wglGetLayerPaletteEntries = wglGetLayerPaletteEntries@20
+	wglGetPixelFormat = wglGetPixelFormat@4
+	wglGetProcAddress = wglGetProcAddress@4
+	wglMakeCurrent = wglMakeCurrent@8
+	wglRealizeLayerPalette = wglRealizeLayerPalette@12
+	wglSetLayerPaletteEntries = wglSetLayerPaletteEntries@20
+	wglSetPixelFormat = wglSetPixelFormat@12
+	wglShareLists = wglShareLists@8
+	wglSwapBuffers = wglSwapBuffers@4
+	wglSwapLayerBuffers = wglSwapLayerBuffers@8
+;	wglSwapMultipleBuffers = wglSwapMultipleBuffers@8
+	wglUseFontBitmapsA = wglUseFontBitmapsA@16
+	wglUseFontBitmapsW = wglUseFontBitmapsW@16
+	wglUseFontOutlinesA = wglUseFontOutlinesA@32
+	wglUseFontOutlinesW = wglUseFontOutlinesW@32
+	DrvCopyContext = DrvCopyContext@12
+	DrvCreateContext = DrvCreateContext@4
+	DrvCreateLayerContext = DrvCreateLayerContext@8
+	DrvDeleteContext = DrvDeleteContext@4
+	DrvDescribeLayerPlane = DrvDescribeLayerPlane@20
+	DrvDescribePixelFormat = DrvDescribePixelFormat@16
+	DrvGetLayerPaletteEntries = DrvGetLayerPaletteEntries@20
+	DrvGetProcAddress = DrvGetProcAddress@4
+	DrvRealizeLayerPalette = DrvRealizeLayerPalette@12
+	DrvReleaseContext = DrvReleaseContext@4
+	DrvSetCallbackProcs = DrvSetCallbackProcs@8
+	DrvSetContext = DrvSetContext@12
+	DrvSetLayerPaletteEntries = DrvSetLayerPaletteEntries@20
+	DrvSetPixelFormat = DrvSetPixelFormat@8
+	DrvShareLists = DrvShareLists@8
+	DrvSwapBuffers = DrvSwapBuffers@4
+	DrvSwapLayerBuffers = DrvSwapLayerBuffers@8
+	DrvValidateVersion = DrvValidateVersion@4
diff --git a/src/gallium/state_trackers/wgl/shared/stw_arbpixelformat.c b/src/gallium/state_trackers/wgl/shared/stw_arbpixelformat.c
new file mode 100644
index 0000000000..0e2d407699
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_arbpixelformat.c
@@ -0,0 +1,483 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * @file
+ * 
+ * WGL_ARB_pixel_format extension implementation.
+ * 
+ * @sa http://www.opengl.org/registry/specs/ARB/wgl_pixel_format.txt
+ */
+
+
+#include <windows.h>
+
+#define WGL_WGLEXT_PROTOTYPES
+
+#include <GL/gl.h>
+#include <GL/wglext.h>
+
+#include "pipe/p_compiler.h"
+#include "util/u_memory.h"
+#include "stw_public.h"
+#include "stw_pixelformat.h"
+
+
+static boolean
+stw_query_attrib(
+   int iPixelFormat,
+   int iLayerPlane,
+   int attrib,
+   int *pvalue )
+{
+   uint count;
+   uint index;
+   const struct stw_pixelformat_info *pfi;
+
+   count = stw_pixelformat_get_extended_count();
+
+   if (attrib == WGL_NUMBER_PIXEL_FORMATS_ARB) {
+      *pvalue = (int) count;
+      return TRUE;
+   }
+
+   index = (uint) iPixelFormat - 1;
+   if (index >= count)
+      return FALSE;
+
+   pfi = stw_pixelformat_get_info( index );
+
+   switch (attrib) {
+   case WGL_DRAW_TO_WINDOW_ARB:
+      *pvalue = pfi->pfd.dwFlags & PFD_DRAW_TO_WINDOW ? TRUE : FALSE;
+      return TRUE;
+
+   case WGL_DRAW_TO_BITMAP_ARB:
+      *pvalue = pfi->pfd.dwFlags & PFD_DRAW_TO_BITMAP ? TRUE : FALSE;
+      return TRUE;
+
+   case WGL_NEED_PALETTE_ARB:
+      *pvalue = pfi->pfd.dwFlags & PFD_NEED_PALETTE ? TRUE : FALSE;
+      return TRUE;
+
+   case WGL_NEED_SYSTEM_PALETTE_ARB:
+      *pvalue = pfi->pfd.dwFlags & PFD_NEED_SYSTEM_PALETTE ? TRUE : FALSE;
+      return TRUE;
+
+   case WGL_SWAP_METHOD_ARB:
+      *pvalue = pfi->pfd.dwFlags & PFD_SWAP_COPY ? WGL_SWAP_COPY_ARB : WGL_SWAP_UNDEFINED_ARB;
+      return TRUE;
+
+   case WGL_SWAP_LAYER_BUFFERS_ARB:
+      *pvalue = FALSE;
+      return TRUE;
+
+   case WGL_NUMBER_OVERLAYS_ARB:
+      *pvalue = 0;
+      return TRUE;
+
+   case WGL_NUMBER_UNDERLAYS_ARB:
+      *pvalue = 0;
+      return TRUE;
+   }
+
+   if (iLayerPlane != 0)
+      return FALSE;
+
+   switch (attrib) {
+   case WGL_ACCELERATION_ARB:
+      *pvalue = WGL_FULL_ACCELERATION_ARB;
+      break;
+
+   case WGL_TRANSPARENT_ARB:
+      *pvalue = FALSE;
+      break;
+
+   case WGL_TRANSPARENT_RED_VALUE_ARB:
+   case WGL_TRANSPARENT_GREEN_VALUE_ARB:
+   case WGL_TRANSPARENT_BLUE_VALUE_ARB:
+   case WGL_TRANSPARENT_ALPHA_VALUE_ARB:
+   case WGL_TRANSPARENT_INDEX_VALUE_ARB:
+      break;
+
+   case WGL_SHARE_DEPTH_ARB:
+   case WGL_SHARE_STENCIL_ARB:
+   case WGL_SHARE_ACCUM_ARB:
+      *pvalue = TRUE;
+      break;
+
+   case WGL_SUPPORT_GDI_ARB:
+      *pvalue = pfi->pfd.dwFlags & PFD_SUPPORT_GDI ? TRUE : FALSE;
+      break;
+
+   case WGL_SUPPORT_OPENGL_ARB:
+      *pvalue = pfi->pfd.dwFlags & PFD_SUPPORT_OPENGL ? TRUE : FALSE;
+      break;
+
+   case WGL_DOUBLE_BUFFER_ARB:
+      *pvalue = pfi->pfd.dwFlags & PFD_DOUBLEBUFFER ? TRUE : FALSE;
+      break;
+
+   case WGL_STEREO_ARB:
+      *pvalue = pfi->pfd.dwFlags & PFD_STEREO ? TRUE : FALSE;
+      break;
+
+   case WGL_PIXEL_TYPE_ARB:
+      switch (pfi->pfd.iPixelType) {
+      case PFD_TYPE_RGBA:
+         *pvalue = WGL_TYPE_RGBA_ARB;
+         break;
+      case PFD_TYPE_COLORINDEX:
+         *pvalue = WGL_TYPE_COLORINDEX_ARB;
+         break;
+      default:
+         return FALSE;
+      }
+      break;
+
+   case WGL_COLOR_BITS_ARB:
+      *pvalue = pfi->pfd.cColorBits;
+      break;
+
+   case WGL_RED_BITS_ARB:
+      *pvalue = pfi->pfd.cRedBits;
+      break;
+
+   case WGL_RED_SHIFT_ARB:
+      *pvalue = pfi->pfd.cRedShift;
+      break;
+
+   case WGL_GREEN_BITS_ARB:
+      *pvalue = pfi->pfd.cGreenBits;
+      break;
+
+   case WGL_GREEN_SHIFT_ARB:
+      *pvalue = pfi->pfd.cGreenShift;
+      break;
+
+   case WGL_BLUE_BITS_ARB:
+      *pvalue = pfi->pfd.cBlueBits;
+      break;
+
+   case WGL_BLUE_SHIFT_ARB:
+      *pvalue = pfi->pfd.cBlueShift;
+      break;
+
+   case WGL_ALPHA_BITS_ARB:
+      *pvalue = pfi->pfd.cAlphaBits;
+      break;
+
+   case WGL_ALPHA_SHIFT_ARB:
+      *pvalue = pfi->pfd.cAlphaShift;
+      break;
+
+   case WGL_ACCUM_BITS_ARB:
+      *pvalue = pfi->pfd.cAccumBits;
+      break;
+
+   case WGL_ACCUM_RED_BITS_ARB:
+      *pvalue = pfi->pfd.cAccumRedBits;
+      break;
+
+   case WGL_ACCUM_GREEN_BITS_ARB:
+      *pvalue = pfi->pfd.cAccumGreenBits;
+      break;
+
+   case WGL_ACCUM_BLUE_BITS_ARB:
+      *pvalue = pfi->pfd.cAccumBlueBits;
+      break;
+
+   case WGL_ACCUM_ALPHA_BITS_ARB:
+      *pvalue = pfi->pfd.cAccumAlphaBits;
+      break;
+
+   case WGL_DEPTH_BITS_ARB:
+      *pvalue = pfi->pfd.cDepthBits;
+      break;
+
+   case WGL_STENCIL_BITS_ARB:
+      *pvalue = pfi->pfd.cStencilBits;
+      break;
+
+   case WGL_AUX_BUFFERS_ARB:
+      *pvalue = pfi->pfd.cAuxBuffers;
+      break;
+
+   case WGL_SAMPLE_BUFFERS_ARB:
+      *pvalue = pfi->numSampleBuffers;
+      break;
+
+   case WGL_SAMPLES_ARB:
+      *pvalue = pfi->numSamples;
+      break;
+
+   default:
+      return FALSE;
+   }
+
+   return TRUE;
+}
+
+struct attrib_match_info
+{
+   int attribute;
+   int weight;
+   BOOL exact;
+};
+
+static const struct attrib_match_info attrib_match[] = {
+
+   /* WGL_ARB_pixel_format */
+   { WGL_DRAW_TO_WINDOW_ARB,      0, TRUE },
+   { WGL_DRAW_TO_BITMAP_ARB,      0, TRUE },
+   { WGL_ACCELERATION_ARB,        0, TRUE },
+   { WGL_NEED_PALETTE_ARB,        0, TRUE },
+   { WGL_NEED_SYSTEM_PALETTE_ARB, 0, TRUE },
+   { WGL_SWAP_LAYER_BUFFERS_ARB,  0, TRUE },
+   { WGL_SWAP_METHOD_ARB,         0, TRUE },
+   { WGL_NUMBER_OVERLAYS_ARB,     4, FALSE },
+   { WGL_NUMBER_UNDERLAYS_ARB,    4, FALSE },
+   /*{ WGL_SHARE_DEPTH_ARB,         0, TRUE },*/     /* no overlays -- ignore */
+   /*{ WGL_SHARE_STENCIL_ARB,       0, TRUE },*/   /* no overlays -- ignore */
+   /*{ WGL_SHARE_ACCUM_ARB,         0, TRUE },*/     /* no overlays -- ignore */
+   { WGL_SUPPORT_GDI_ARB,         0, TRUE },
+   { WGL_SUPPORT_OPENGL_ARB,      0, TRUE },
+   { WGL_DOUBLE_BUFFER_ARB,       0, TRUE },
+   { WGL_STEREO_ARB,              0, TRUE },
+   { WGL_PIXEL_TYPE_ARB,          0, TRUE },
+   { WGL_COLOR_BITS_ARB,          1, FALSE },
+   { WGL_RED_BITS_ARB,            1, FALSE },
+   { WGL_GREEN_BITS_ARB,          1, FALSE },
+   { WGL_BLUE_BITS_ARB,           1, FALSE },
+   { WGL_ALPHA_BITS_ARB,          1, FALSE },
+   { WGL_ACCUM_BITS_ARB,          1, FALSE },
+   { WGL_ACCUM_RED_BITS_ARB,      1, FALSE },
+   { WGL_ACCUM_GREEN_BITS_ARB,    1, FALSE },
+   { WGL_ACCUM_BLUE_BITS_ARB,     1, FALSE },
+   { WGL_ACCUM_ALPHA_BITS_ARB,    1, FALSE },
+   { WGL_DEPTH_BITS_ARB,          1, FALSE },
+   { WGL_STENCIL_BITS_ARB,        1, FALSE },
+   { WGL_AUX_BUFFERS_ARB,         2, FALSE },
+
+   /* WGL_ARB_multisample */
+   { WGL_SAMPLE_BUFFERS_ARB,      2, FALSE },
+   { WGL_SAMPLES_ARB,             2, FALSE }
+};
+
+struct stw_pixelformat_score
+{
+   int points;
+   uint index;
+};
+
+static BOOL
+score_pixelformats(
+   struct stw_pixelformat_score *scores,
+   uint count,
+   int attribute,
+   int expected_value )
+{
+   uint i;
+   const struct attrib_match_info *ami = NULL;
+   uint index;
+
+   /* Find out if a given attribute should be considered for score calculation.
+    */
+   for (i = 0; i < sizeof( attrib_match ) / sizeof( attrib_match[0] ); i++) {
+      if (attrib_match[i].attribute == attribute) {
+         ami = &attrib_match[i];
+         break;
+      }
+   }
+   if (ami == NULL)
+      return TRUE;
+
+   /* Iterate all pixelformats, query the requested attribute and calculate
+    * score points.
+    */
+   for (index = 0; index < count; index++) {
+      int actual_value;
+
+      if (!stw_query_attrib( index + 1, 0, attribute, &actual_value ))
+         return FALSE;
+
+      if (ami->exact) {
+         /* For an exact match criteria, if the actual and expected values differ,
+          * the score is set to 0 points, effectively removing the pixelformat
+          * from a list of matching pixelformats.
+          */
+         if (actual_value != expected_value)
+            scores[index].points = 0;
+      }
+      else {
+         /* For a minimum match criteria, if the actual value is smaller than the expected
+          * value, the pixelformat is rejected (score set to 0). However, if the actual
+          * value is bigger, the pixelformat is given a penalty to favour pixelformats that
+          * more closely match the expected values.
+          */
+         if (actual_value < expected_value)
+            scores[index].points = 0;
+         else if (actual_value > expected_value)
+            scores[index].points -= (actual_value - expected_value) * ami->weight;
+      }
+   }
+
+   return TRUE;
+}
+
+WINGDIAPI BOOL APIENTRY
+wglChoosePixelFormatARB(
+   HDC hdc,
+   const int *piAttribIList,
+   const FLOAT *pfAttribFList,
+   UINT nMaxFormats,
+   int *piFormats,
+   UINT *nNumFormats )
+{
+   uint count;
+   struct stw_pixelformat_score *scores;
+   uint i;
+
+   *nNumFormats = 0;
+
+   /* Allocate and initialize pixelformat score table -- better matches
+    * have higher scores. Start with a high score and take out penalty
+    * points for a mismatch when the match does not have to be exact.
+    * Set a score to 0 if there is a mismatch for an exact match criteria.
+    */
+   count = stw_pixelformat_get_extended_count();
+   scores = (struct stw_pixelformat_score *) MALLOC( count * sizeof( struct stw_pixelformat_score ) );
+   if (scores == NULL)
+      return FALSE;
+   for (i = 0; i < count; i++) {
+      scores[i].points = 0x7fffffff;
+      scores[i].index = i;
+   }
+
+   /* Given the attribute list calculate a score for each pixelformat.
+    */
+   if (piAttribIList != NULL) {
+      while (*piAttribIList != 0) {
+         if (!score_pixelformats( scores, count, piAttribIList[0], piAttribIList[1] )) {
+            FREE( scores );
+            return FALSE;
+         }
+         piAttribIList += 2;
+      }
+   }
+   if (pfAttribFList != NULL) {
+      while (*pfAttribFList != 0) {
+         if (!score_pixelformats( scores, count, (int) pfAttribFList[0], (int) pfAttribFList[1] )) {
+            FREE( scores );
+            return FALSE;
+         }
+         pfAttribFList += 2;
+      }
+   }
+
+   /* Bubble-sort the resulting scores. Pixelformats with higher scores go first.
+    * TODO: Find out if there are any patent issues with it.
+    */
+   if (count > 1) {
+      uint n = count;
+      boolean swapped;
+
+      do {
+         swapped = FALSE;
+         for (i = 1; i < n; i++) {
+            if (scores[i - 1].points < scores[i].points) {
+               struct stw_pixelformat_score score = scores[i - 1];
+
+               scores[i - 1] = scores[i];
+               scores[i] = score;
+               swapped = TRUE;
+            }
+         }
+         n--;
+      }
+      while (swapped);
+   }
+
+   /* Return a list of pixelformats that are the best match.
+    * Reject pixelformats with non-positive scores.
+    */
+   for (i = 0; i < count; i++) {
+      if (scores[i].points > 0) {
+         if (*nNumFormats < nMaxFormats)
+            piFormats[*nNumFormats] = scores[i].index + 1;
+         (*nNumFormats)++;
+      }
+   }
+
+   FREE( scores );
+   return TRUE;
+}
+
+WINGDIAPI BOOL APIENTRY
+wglGetPixelFormatAttribfvARB(
+   HDC hdc,
+   int iPixelFormat,
+   int iLayerPlane,
+   UINT nAttributes,
+   const int *piAttributes,
+   FLOAT *pfValues )
+{
+   UINT i;
+
+   (void) hdc;
+
+   for (i = 0; i < nAttributes; i++) {
+      int value;
+
+      if (!stw_query_attrib( iPixelFormat, iLayerPlane, piAttributes[i], &value ))
+         return FALSE;
+      pfValues[i] = (FLOAT) value;
+   }
+
+   return TRUE;
+}
+
+WINGDIAPI BOOL APIENTRY
+wglGetPixelFormatAttribivARB(
+   HDC hdc,
+   int iPixelFormat,
+   int iLayerPlane,
+   UINT nAttributes,
+   const int *piAttributes,
+   int *piValues )
+{
+   UINT i;
+
+   (void) hdc;
+
+   for (i = 0; i < nAttributes; i++) {
+      if (!stw_query_attrib( iPixelFormat, iLayerPlane, piAttributes[i], &piValues[i] ))
+         return FALSE;
+   }
+
+   return TRUE;
+}
diff --git a/src/gallium/state_trackers/wgl/shared/stw_context.c b/src/gallium/state_trackers/wgl/shared/stw_context.c
new file mode 100644
index 0000000000..4968ecc692
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_context.c
@@ -0,0 +1,382 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include <windows.h>
+
+#include "main/mtypes.h"
+#include "main/context.h"
+#include "pipe/p_compiler.h"
+#include "pipe/p_context.h"
+#include "state_tracker/st_context.h"
+#include "state_tracker/st_public.h"
+
+#ifdef DEBUG
+#include "trace/tr_screen.h"
+#include "trace/tr_context.h"
+#endif
+
+#include "shared/stw_device.h"
+#include "shared/stw_winsys.h"
+#include "shared/stw_framebuffer.h"
+#include "shared/stw_pixelformat.h"
+#include "stw_public.h"
+#include "stw_context.h"
+#include "stw_tls.h"
+
+
+static INLINE struct stw_context *
+stw_context(GLcontext *glctx)
+{
+   if(!glctx)
+      return NULL;
+   assert(glctx->DriverCtx);
+   return (struct stw_context *)glctx->DriverCtx;
+}
+
+static INLINE struct stw_context *
+stw_current_context(void)
+{
+   /* We must check if multiple threads are being used or GET_CURRENT_CONTEXT 
+    * might return the current context of the thread first seen. */
+   _glapi_check_multithread();
+
+   {
+      GET_CURRENT_CONTEXT( glctx );
+      return stw_context(glctx);
+   }
+}
+
+BOOL
+stw_copy_context(
+   UINT_PTR hglrcSrc,
+   UINT_PTR hglrcDst,
+   UINT mask )
+{
+   struct stw_context *src;
+   struct stw_context *dst;
+   BOOL ret = FALSE;
+
+   pipe_mutex_lock( stw_dev->ctx_mutex );
+   
+   src = stw_lookup_context_locked( hglrcSrc );
+   dst = stw_lookup_context_locked( hglrcDst );
+
+   if (src && dst) { 
+      /* FIXME */
+      assert(0);
+      (void) src;
+      (void) dst;
+      (void) mask;
+   }
+
+   pipe_mutex_unlock( stw_dev->ctx_mutex );
+   
+   return ret;
+}
+
+BOOL
+stw_share_lists(
+   UINT_PTR hglrc1, 
+   UINT_PTR hglrc2 )
+{
+   struct stw_context *ctx1;
+   struct stw_context *ctx2;
+   BOOL ret = FALSE;
+
+   pipe_mutex_lock( stw_dev->ctx_mutex );
+   
+   ctx1 = stw_lookup_context_locked( hglrc1 );
+   ctx2 = stw_lookup_context_locked( hglrc2 );
+
+   if (ctx1 && ctx2 &&
+       ctx1->iPixelFormat == ctx2->iPixelFormat) { 
+      ret = _mesa_share_state(ctx2->st->ctx, ctx1->st->ctx);
+   }
+
+   pipe_mutex_unlock( stw_dev->ctx_mutex );
+   
+   return ret;
+}
+
+static void
+stw_viewport(GLcontext * glctx, GLint x, GLint y,
+             GLsizei width, GLsizei height)
+{
+   struct stw_context *ctx = (struct stw_context *)glctx->DriverCtx;
+   struct stw_framebuffer *fb;
+   
+   fb = stw_framebuffer_from_hdc( ctx->hdc );
+   if(fb) {
+      stw_framebuffer_update(fb);
+      stw_framebuffer_release(fb);
+   }
+}
+
+UINT_PTR
+stw_create_layer_context(
+   HDC hdc,
+   int iLayerPlane )
+{
+   int iPixelFormat;
+   const struct stw_pixelformat_info *pfi;
+   GLvisual visual;
+   struct stw_context *ctx = NULL;
+   struct pipe_screen *screen = NULL;
+   struct pipe_context *pipe = NULL;
+   
+   if(!stw_dev)
+      return 0;
+   
+   if (iLayerPlane != 0)
+      return 0;
+
+   iPixelFormat = GetPixelFormat(hdc);
+   if(!iPixelFormat)
+      return 0;
+   
+   pfi = stw_pixelformat_get_info( iPixelFormat - 1 );
+   stw_pixelformat_visual(&visual, pfi);
+   
+   ctx = CALLOC_STRUCT( stw_context );
+   if (ctx == NULL)
+      goto no_ctx;
+
+   ctx->hdc = hdc;
+   ctx->iPixelFormat = iPixelFormat;
+
+   screen = stw_dev->screen;
+
+#ifdef DEBUG
+   /* Unwrap screen */
+   if(stw_dev->trace_running)
+      screen = trace_screen(screen)->screen;
+#endif
+
+   pipe = stw_dev->stw_winsys->create_context( screen );
+   if (pipe == NULL) 
+      goto no_pipe;
+
+#ifdef DEBUG
+   /* Wrap context */
+   if(stw_dev->trace_running)
+      pipe = trace_context_create(stw_dev->screen, pipe);
+#endif
+
+   /* pass to stw_flush_frontbuffer as context_private */
+   assert(!pipe->priv);
+   pipe->priv = hdc;
+
+   ctx->st = st_create_context( pipe, &visual, NULL );
+   if (ctx->st == NULL) 
+      goto no_st_ctx;
+
+   ctx->st->ctx->DriverCtx = ctx;
+   ctx->st->ctx->Driver.Viewport = stw_viewport;
+
+   pipe_mutex_lock( stw_dev->ctx_mutex );
+   ctx->hglrc = handle_table_add(stw_dev->ctx_table, ctx);
+   pipe_mutex_unlock( stw_dev->ctx_mutex );
+   if (!ctx->hglrc)
+      goto no_hglrc;
+
+   return ctx->hglrc;
+
+no_hglrc:
+   st_destroy_context(ctx->st);
+   goto no_pipe; /* st_context_destroy already destroys pipe */
+no_st_ctx:
+   pipe->destroy( pipe );
+no_pipe:
+   FREE(ctx);
+no_ctx:
+   return 0;
+}
+
+BOOL
+stw_delete_context(
+   UINT_PTR hglrc )
+{
+   struct stw_context *ctx ;
+   BOOL ret = FALSE;
+   
+   if (!stw_dev)
+      return FALSE;
+
+   pipe_mutex_lock( stw_dev->ctx_mutex );
+   ctx = stw_lookup_context_locked(hglrc);
+   handle_table_remove(stw_dev->ctx_table, hglrc);
+   pipe_mutex_unlock( stw_dev->ctx_mutex );
+
+   if (ctx) {
+      struct stw_context *curctx = stw_current_context();
+      
+      /* Unbind current if deleting current context. */
+      if (curctx == ctx)
+         st_make_current( NULL, NULL, NULL );
+
+      st_destroy_context(ctx->st);
+      FREE(ctx);
+
+      ret = TRUE;
+   }
+
+   return ret;
+}
+
+BOOL
+stw_release_context(
+   UINT_PTR hglrc )
+{
+   struct stw_context *ctx;
+
+   if (!stw_dev)
+      return FALSE;
+
+   pipe_mutex_lock( stw_dev->ctx_mutex );
+   ctx = stw_lookup_context_locked( hglrc );
+   pipe_mutex_unlock( stw_dev->ctx_mutex );
+
+   if (!ctx)
+      return FALSE;
+   
+   /* The expectation is that ctx is the same context which is
+    * current for this thread.  We should check that and return False
+    * if not the case.
+    */
+   if (ctx != stw_current_context())
+      return FALSE;
+
+   if (stw_make_current( NULL, 0 ) == FALSE)
+      return FALSE;
+
+   return TRUE;
+}
+
+
+UINT_PTR
+stw_get_current_context( void )
+{
+   struct stw_context *ctx;
+
+   ctx = stw_current_context();
+   if(!ctx)
+      return 0;
+   
+   return ctx->hglrc;
+}
+
+HDC
+stw_get_current_dc( void )
+{
+   struct stw_context *ctx;
+
+   ctx = stw_current_context();
+   if(!ctx)
+      return NULL;
+   
+   return ctx->hdc;
+}
+
+BOOL
+stw_make_current(
+   HDC hdc,
+   UINT_PTR hglrc )
+{
+   struct stw_context *curctx = NULL;
+   struct stw_context *ctx = NULL;
+   struct stw_framebuffer *fb = NULL;
+
+   if (!stw_dev)
+      goto fail;
+
+   curctx = stw_current_context();
+   if (curctx != NULL) {
+      if (curctx->hglrc != hglrc)
+	 st_flush(curctx->st, PIPE_FLUSH_RENDER_CACHE, NULL);
+      
+      /* Return if already current. */
+      if (curctx->hglrc == hglrc && curctx->hdc == hdc) {
+         ctx = curctx;
+         fb = stw_framebuffer_from_hdc( hdc );
+         goto success;
+      }
+   }
+
+   if (hdc == NULL || hglrc == 0) {
+      return st_make_current( NULL, NULL, NULL );
+   }
+
+   pipe_mutex_lock( stw_dev->ctx_mutex ); 
+   ctx = stw_lookup_context_locked( hglrc );
+   pipe_mutex_unlock( stw_dev->ctx_mutex ); 
+   if(!ctx)
+      goto fail;
+
+   fb = stw_framebuffer_from_hdc( hdc );
+   if(!fb) { 
+      /* Applications should call SetPixelFormat before creating a context,
+       * but not all do, and the opengl32 runtime seems to use a default pixel
+       * format in some cases, so we must create a framebuffer for those here
+       */
+      int iPixelFormat = GetPixelFormat(hdc);
+      if(iPixelFormat)
+         fb = stw_framebuffer_create( hdc, iPixelFormat );
+      if(!fb) 
+         goto fail;
+   }
+   
+   if(fb->iPixelFormat != ctx->iPixelFormat)
+      goto fail;
+
+   /* Lazy allocation of the frame buffer */
+   if(!stw_framebuffer_allocate(fb))
+      goto fail;
+
+   /* Bind the new framebuffer */
+   ctx->hdc = hdc;
+   
+   /* pass to stw_flush_frontbuffer as context_private */
+   ctx->st->pipe->priv = hdc;
+   
+   if(!st_make_current( ctx->st, fb->stfb, fb->stfb ))
+      goto fail;
+
+success:
+   assert(fb);
+   if(fb) {
+      stw_framebuffer_update(fb);
+      stw_framebuffer_release(fb);
+   }
+   
+   return TRUE;
+
+fail:
+   if(fb)
+      stw_framebuffer_release(fb);
+   st_make_current( NULL, NULL, NULL );
+   return FALSE;
+}
diff --git a/src/gallium/state_trackers/wgl/shared/stw_context.h b/src/gallium/state_trackers/wgl/shared/stw_context.h
new file mode 100644
index 0000000000..166471de5e
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_context.h
@@ -0,0 +1,43 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef STW_CONTEXT_H
+#define STW_CONTEXT_H
+
+#include <windows.h>
+
+struct st_context;
+
+struct stw_context
+{
+   struct st_context *st;
+   UINT_PTR hglrc;
+   int iPixelFormat;
+   HDC hdc;
+};
+
+#endif /* STW_CONTEXT_H */
diff --git a/src/gallium/state_trackers/wgl/shared/stw_device.c b/src/gallium/state_trackers/wgl/shared/stw_device.c
new file mode 100644
index 0000000000..0b6954915a
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_device.c
@@ -0,0 +1,225 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include <windows.h>
+
+#include "glapi/glthread.h"
+#include "util/u_debug.h"
+#include "pipe/p_screen.h"
+#include "state_tracker/st_public.h"
+
+#ifdef DEBUG
+#include "trace/tr_screen.h"
+#include "trace/tr_texture.h"
+#endif
+
+#include "shared/stw_device.h"
+#include "shared/stw_winsys.h"
+#include "shared/stw_pixelformat.h"
+#include "shared/stw_public.h"
+#include "shared/stw_tls.h"
+#include "shared/stw_framebuffer.h"
+
+#ifdef WIN32_THREADS
+extern _glthread_Mutex OneTimeLock;
+extern void FreeAllTSD(void);
+#endif
+
+
+struct stw_device *stw_dev = NULL;
+
+
+/**
+ * XXX: Dispatch pipe_screen::flush_front_buffer to our 
+ * stw_winsys::flush_front_buffer.
+ */
+static void 
+stw_flush_frontbuffer(struct pipe_screen *screen,
+                     struct pipe_surface *surface,
+                     void *context_private )
+{
+   const struct stw_winsys *stw_winsys = stw_dev->stw_winsys;
+   HDC hdc = (HDC)context_private;
+   struct stw_framebuffer *fb;
+   
+   fb = stw_framebuffer_from_hdc( hdc );
+   /* fb can be NULL if window was destroyed already */
+   if (fb) {
+#if DEBUG
+      {
+         struct pipe_surface *surface2;
+   
+         if(!st_get_framebuffer_surface( fb->stfb, ST_SURFACE_FRONT_LEFT, &surface2 ))
+            assert(0);
+         else
+            assert(surface2 == surface);
+      }
+#endif
+
+#ifdef DEBUG
+      if(stw_dev->trace_running) {
+         screen = trace_screen(screen)->screen;
+         surface = trace_surface(surface)->surface;
+      }
+#endif
+   }
+   
+   stw_winsys->flush_frontbuffer(screen, surface, hdc);
+   
+   if(fb) {
+      stw_framebuffer_update(fb);
+      stw_framebuffer_release(fb);
+   }
+}
+
+
+boolean
+stw_init(const struct stw_winsys *stw_winsys)
+{
+   static struct stw_device stw_dev_storage;
+   struct pipe_screen *screen;
+
+   debug_printf("%s\n", __FUNCTION__);
+   
+   assert(!stw_dev);
+
+   stw_tls_init();
+
+   stw_dev = &stw_dev_storage;
+   memset(stw_dev, 0, sizeof(*stw_dev));
+
+#ifdef DEBUG
+   stw_dev->memdbg_no = debug_memory_begin();
+#endif
+   
+   stw_dev->stw_winsys = stw_winsys;
+
+#ifdef WIN32_THREADS
+   _glthread_INIT_MUTEX(OneTimeLock);
+#endif
+
+   screen = stw_winsys->create_screen();
+   if(!screen)
+      goto error1;
+
+#ifdef DEBUG
+   stw_dev->screen = trace_screen_create(screen);
+   stw_dev->trace_running = stw_dev->screen != screen ? TRUE : FALSE;
+#else
+   stw_dev->screen = screen;
+#endif
+   
+   stw_dev->screen->flush_frontbuffer = &stw_flush_frontbuffer;
+   
+   pipe_mutex_init( stw_dev->ctx_mutex );
+   pipe_mutex_init( stw_dev->fb_mutex );
+
+   stw_dev->ctx_table = handle_table_create();
+   if (!stw_dev->ctx_table) {
+      goto error1;
+   }
+
+   stw_pixelformat_init();
+
+   return TRUE;
+
+error1:
+   stw_dev = NULL;
+   return FALSE;
+}
+
+
+boolean
+stw_init_thread(void)
+{
+   return stw_tls_init_thread();
+}
+
+
+void
+stw_cleanup_thread(void)
+{
+   stw_tls_cleanup_thread();
+}
+
+
+void
+stw_cleanup(void)
+{
+   unsigned i;
+
+   debug_printf("%s\n", __FUNCTION__);
+
+   if (!stw_dev)
+      return;
+   
+   pipe_mutex_lock( stw_dev->ctx_mutex );
+   {
+      /* Ensure all contexts are destroyed */
+      i = handle_table_get_first_handle(stw_dev->ctx_table);
+      while (i) {
+         stw_delete_context(i);
+         i = handle_table_get_next_handle(stw_dev->ctx_table, i);
+      }
+      handle_table_destroy(stw_dev->ctx_table);
+   }
+   pipe_mutex_unlock( stw_dev->ctx_mutex );
+
+   stw_framebuffer_cleanup();
+   
+   pipe_mutex_destroy( stw_dev->fb_mutex );
+   pipe_mutex_destroy( stw_dev->ctx_mutex );
+   
+   stw_dev->screen->destroy(stw_dev->screen);
+
+#ifdef WIN32_THREADS
+   _glthread_DESTROY_MUTEX(OneTimeLock);
+   FreeAllTSD();
+#endif
+
+#ifdef DEBUG
+   debug_memory_end(stw_dev->memdbg_no);
+#endif
+
+   stw_tls_cleanup();
+
+   stw_dev = NULL;
+}
+
+
+struct stw_context *
+stw_lookup_context_locked( UINT_PTR dhglrc )
+{
+   if (dhglrc == 0)
+      return NULL;
+
+   if (stw_dev == NULL)
+      return NULL;
+
+   return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
+}
+
diff --git a/src/gallium/state_trackers/wgl/shared/stw_device.h b/src/gallium/state_trackers/wgl/shared/stw_device.h
new file mode 100644
index 0000000000..e1bb9518dd
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_device.h
@@ -0,0 +1,77 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef STW_DEVICE_H_
+#define STW_DEVICE_H_
+
+
+#include <windows.h>
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_thread.h"
+#include "util/u_handle_table.h"
+#include "stw_pixelformat.h"
+
+
+#define STW_MAX_PIXELFORMATS   256
+
+
+struct pipe_screen;
+struct stw_framebuffer;
+
+struct stw_device
+{
+   const struct stw_winsys *stw_winsys;
+   
+   struct pipe_screen *screen;
+   
+#ifdef DEBUG
+   boolean trace_running;
+#endif
+
+   struct stw_pixelformat_info pixelformats[STW_MAX_PIXELFORMATS];
+   unsigned pixelformat_count;
+   unsigned pixelformat_extended_count;
+
+   pipe_mutex ctx_mutex;
+   struct handle_table *ctx_table;
+   
+   pipe_mutex fb_mutex;
+   struct stw_framebuffer *fb_head;
+   
+#ifdef DEBUG
+   unsigned long memdbg_no;
+#endif
+};
+
+struct stw_context *
+stw_lookup_context_locked( UINT_PTR hglrc );
+
+extern struct stw_device *stw_dev;
+
+
+#endif /* STW_DEVICE_H_ */
diff --git a/src/gallium/state_trackers/wgl/shared/stw_extensionsstring.c b/src/gallium/state_trackers/wgl/shared/stw_extensionsstring.c
new file mode 100644
index 0000000000..62c859e1f9
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_extensionsstring.c
@@ -0,0 +1,59 @@
+/**************************************************************************
+ * 
+ * Copyright 2009 VMware, Inc.
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#include <windows.h>
+
+#define WGL_WGLEXT_PROTOTYPES
+
+#include <GL/gl.h>
+#include <GL/wglext.h>
+
+
+static const char *stw_extension_string = 
+   "WGL_ARB_extensions_string "
+   "WGL_ARB_multisample "
+   "WGL_ARB_pixel_format "
+/*   "WGL_EXT_swap_interval " */
+   "WGL_EXT_extensions_string";
+
+
+WINGDIAPI const char * APIENTRY
+wglGetExtensionsStringARB(
+   HDC hdc )
+{
+   (void) hdc;
+
+   return stw_extension_string;
+}
+
+
+WINGDIAPI const char * APIENTRY
+wglGetExtensionsStringEXT( void )
+{
+   return stw_extension_string;
+}
diff --git a/src/gallium/state_trackers/wgl/shared/stw_extgallium.c b/src/gallium/state_trackers/wgl/shared/stw_extgallium.c
new file mode 100644
index 0000000000..fc22737d7e
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_extgallium.c
@@ -0,0 +1,79 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+#include "pipe/p_screen.h"
+#include "stw_public.h"
+#include "stw_device.h"
+#include "stw_winsys.h"
+
+#ifdef DEBUG
+#include "trace/tr_screen.h"
+#include "trace/tr_context.h"
+#endif
+
+
+struct pipe_screen * APIENTRY
+wglGetGalliumScreenMESA(void)
+{
+   return stw_dev ? stw_dev->screen : NULL;
+}
+
+
+/* XXX: Unify with stw_create_layer_context */
+struct pipe_context * APIENTRY
+wglCreateGalliumContextMESA(void)
+{
+   struct pipe_screen *screen = NULL;
+   struct pipe_context *pipe = NULL;
+
+   if(!stw_dev)
+      return NULL;
+
+   screen = stw_dev->screen;
+
+#ifdef DEBUG
+   /* Unwrap screen */
+   if(stw_dev->trace_running)
+      screen = trace_screen(screen)->screen;
+#endif
+
+   pipe = stw_dev->stw_winsys->create_context( screen );
+   if (pipe == NULL)
+      goto no_pipe;
+
+#ifdef DEBUG
+   /* Wrap context */
+   if(stw_dev->trace_running)
+      pipe = trace_context_create(stw_dev->screen, pipe);
+#endif
+
+   return pipe;
+
+no_pipe:
+   return NULL;
+}
diff --git a/src/gallium/state_trackers/wgl/shared/stw_extgallium.h b/src/gallium/state_trackers/wgl/shared/stw_extgallium.h
new file mode 100644
index 0000000000..cc35f2bb7f
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_extgallium.h
@@ -0,0 +1,47 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef STW_EXTGALLIUM_H_
+#define STW_EXTGALLIUM_H_
+
+
+#include <windows.h>
+
+
+struct pipe_screen;
+struct pipe_context;
+
+
+struct pipe_screen * APIENTRY
+wglGetGalliumScreenMESA(void);
+
+
+struct pipe_context * APIENTRY
+wglCreateGalliumContextMESA(void);
+
+
+#endif /* STW_EXTGALLIUM_H_ */
diff --git a/src/gallium/state_trackers/wgl/shared/stw_extswapinterval.c b/src/gallium/state_trackers/wgl/shared/stw_extswapinterval.c
new file mode 100644
index 0000000000..9eac6a1d09
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_extswapinterval.c
@@ -0,0 +1,57 @@
+/**************************************************************************
+ * 
+ * Copyright 2009 VMware, Inc.
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#include <windows.h>
+
+#define WGL_WGLEXT_PROTOTYPES
+
+#include <GL/gl.h>
+#include <GL/wglext.h>
+#include "util/u_debug.h"
+
+/* A dummy implementation of this extension.
+ *
+ * Required as some applications retrieve and call these functions
+ * regardless of the fact that we don't advertise the extension and
+ * further more the results of wglGetProcAddress are NULL.
+ */
+WINGDIAPI BOOL APIENTRY
+wglSwapIntervalEXT(int interval)
+{
+   (void) interval;
+   debug_printf("%s: %d\n", __FUNCTION__, interval);
+   return TRUE;
+}
+
+WINGDIAPI int APIENTRY
+wglGetSwapIntervalEXT(void)
+{
+   return 0;
+}
+
+
diff --git a/src/gallium/state_trackers/wgl/shared/stw_framebuffer.c b/src/gallium/state_trackers/wgl/shared/stw_framebuffer.c
new file mode 100644
index 0000000000..b8956bb550
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_framebuffer.c
@@ -0,0 +1,493 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#include <windows.h>
+
+#include "main/context.h"
+#include "pipe/p_format.h"
+#include "pipe/p_screen.h"
+#include "state_tracker/st_context.h"
+#include "state_tracker/st_public.h"
+
+#ifdef DEBUG
+#include "trace/tr_screen.h"
+#include "trace/tr_texture.h"
+#endif
+
+#include "stw_framebuffer.h"
+#include "stw_device.h"
+#include "stw_public.h"
+#include "stw_winsys.h"
+#include "stw_tls.h"
+
+
+/**
+ * Search the framebuffer with the matching HWND while holding the
+ * stw_dev::fb_mutex global lock.
+ */
+static INLINE struct stw_framebuffer *
+stw_framebuffer_from_hwnd_locked(
+   HWND hwnd )
+{
+   struct stw_framebuffer *fb;
+
+   for (fb = stw_dev->fb_head; fb != NULL; fb = fb->next)
+      if (fb->hWnd == hwnd) {
+         pipe_mutex_lock(fb->mutex);
+         break;
+      }
+
+   return fb;
+}
+
+
+/**
+ * Destroy this framebuffer. Both stw_dev::fb_mutex and stw_framebuffer::mutex
+ * must be held, by this order. Obviously no further access to fb can be done 
+ * after this.
+ */
+static INLINE void
+stw_framebuffer_destroy_locked(
+   struct stw_framebuffer *fb )
+{
+   struct stw_framebuffer **link;
+
+   link = &stw_dev->fb_head;
+   while (*link != fb)
+      link = &(*link)->next;
+   assert(*link);
+   *link = fb->next;
+   fb->next = NULL;
+
+   st_unreference_framebuffer(fb->stfb);
+   
+   pipe_mutex_unlock( fb->mutex );
+
+   pipe_mutex_destroy( fb->mutex );
+   
+   FREE( fb );
+}
+
+
+void
+stw_framebuffer_release(
+   struct stw_framebuffer *fb)
+{
+   assert(fb);
+   pipe_mutex_unlock( fb->mutex );
+}
+
+
+static INLINE void
+stw_framebuffer_get_size( struct stw_framebuffer *fb )
+{
+   unsigned width, height;
+   RECT rect;
+
+   assert(fb->hWnd);
+   
+   GetClientRect( fb->hWnd, &rect );
+   width = rect.right - rect.left;
+   height = rect.bottom - rect.top;
+
+   if(width < 1)
+      width = 1;
+   if(height < 1)
+      height = 1;
+
+   if(width != fb->width || height != fb->height) {
+      fb->must_resize = TRUE;
+      fb->width = width; 
+      fb->height = height; 
+   }
+}
+
+
+/**
+ * @sa http://msdn.microsoft.com/en-us/library/ms644975(VS.85).aspx
+ * @sa http://msdn.microsoft.com/en-us/library/ms644960(VS.85).aspx
+ */
+LRESULT CALLBACK
+stw_call_window_proc(
+   int nCode,
+   WPARAM wParam,
+   LPARAM lParam )
+{
+   struct stw_tls_data *tls_data;
+   PCWPSTRUCT pParams = (PCWPSTRUCT)lParam;
+   struct stw_framebuffer *fb;
+   
+   tls_data = stw_tls_get_data();
+   if(!tls_data)
+      return 0;
+   
+   if (nCode < 0)
+       return CallNextHookEx(tls_data->hCallWndProcHook, nCode, wParam, lParam);
+
+   if (pParams->message == WM_WINDOWPOSCHANGED) {
+      /* We handle WM_WINDOWPOSCHANGED instead of WM_SIZE because according to
+       * http://blogs.msdn.com/oldnewthing/archive/2008/01/15/7113860.aspx 
+       * WM_SIZE is generated from WM_WINDOWPOSCHANGED by DefWindowProc so it 
+       * can be masked out by the application. */
+      LPWINDOWPOS lpWindowPos = (LPWINDOWPOS)pParams->lParam;
+      if((lpWindowPos->flags & SWP_SHOWWINDOW) || 
+         !(lpWindowPos->flags & SWP_NOSIZE)) {
+         fb = stw_framebuffer_from_hwnd( pParams->hwnd );
+         if(fb) {
+            /* Size in WINDOWPOS includes the window frame, so get the size 
+             * of the client area via GetClientRect.  */
+            stw_framebuffer_get_size(fb);
+            stw_framebuffer_release(fb);
+         }
+      }
+   }
+   else if (pParams->message == WM_DESTROY) {
+      pipe_mutex_lock( stw_dev->fb_mutex );
+      fb = stw_framebuffer_from_hwnd_locked( pParams->hwnd );
+      if(fb)
+         stw_framebuffer_destroy_locked(fb);
+      pipe_mutex_unlock( stw_dev->fb_mutex );
+   }
+
+   return CallNextHookEx(tls_data->hCallWndProcHook, nCode, wParam, lParam);
+}
+
+
+struct stw_framebuffer *
+stw_framebuffer_create(
+   HDC hdc,
+   int iPixelFormat )
+{
+   HWND hWnd;
+   struct stw_framebuffer *fb;
+   const struct stw_pixelformat_info *pfi;
+
+   /* We only support drawing to a window. */
+   hWnd = WindowFromDC( hdc );
+   if(!hWnd)
+      return NULL;
+   
+   fb = CALLOC_STRUCT( stw_framebuffer );
+   if (fb == NULL)
+      return NULL;
+
+   fb->hDC = hdc;
+   fb->hWnd = hWnd;
+   fb->iPixelFormat = iPixelFormat;
+
+   fb->pfi = pfi = stw_pixelformat_get_info( iPixelFormat - 1 );
+
+   stw_pixelformat_visual(&fb->visual, pfi);
+   
+   stw_framebuffer_get_size(fb);
+
+   pipe_mutex_init( fb->mutex );
+
+   /* This is the only case where we lock the stw_framebuffer::mutex before
+    * stw_dev::fb_mutex, since no other thread can know about this framebuffer
+    * and we must prevent any other thread from destroying it before we return.
+    */
+   pipe_mutex_lock( fb->mutex );
+
+   pipe_mutex_lock( stw_dev->fb_mutex );
+   fb->next = stw_dev->fb_head;
+   stw_dev->fb_head = fb;
+   pipe_mutex_unlock( stw_dev->fb_mutex );
+
+   return fb;
+}
+
+
+BOOL
+stw_framebuffer_allocate(
+   struct stw_framebuffer *fb)
+{
+   assert(fb);
+   
+   if(!fb->stfb) {
+      const struct stw_pixelformat_info *pfi = fb->pfi;
+      enum pipe_format colorFormat, depthFormat, stencilFormat;
+
+      colorFormat = pfi->color_format;
+      
+      assert(pf_layout( pfi->depth_stencil_format ) == PIPE_FORMAT_LAYOUT_RGBAZS );
+   
+      if(pf_get_component_bits( pfi->depth_stencil_format, PIPE_FORMAT_COMP_Z ))
+         depthFormat = pfi->depth_stencil_format;
+      else
+         depthFormat = PIPE_FORMAT_NONE;
+   
+      if(pf_get_component_bits( pfi->depth_stencil_format, PIPE_FORMAT_COMP_S ))
+         stencilFormat = pfi->depth_stencil_format;
+      else
+         stencilFormat = PIPE_FORMAT_NONE;
+   
+      assert(fb->must_resize);
+      assert(fb->width);
+      assert(fb->height);
+
+      fb->stfb = st_create_framebuffer(
+         &fb->visual,
+         colorFormat,
+         depthFormat,
+         stencilFormat,
+         fb->width,
+         fb->height,
+         (void *) fb );
+      
+      // to notify the context
+      fb->must_resize = TRUE;
+   }
+   
+   return fb->stfb ? TRUE : FALSE;
+}
+
+
+/**
+ * Update the framebuffer's size if necessary.
+ */
+void
+stw_framebuffer_update(
+   struct stw_framebuffer *fb)
+{
+   assert(fb->stfb);
+   assert(fb->height);
+   assert(fb->width);
+   
+   /* XXX: It would be nice to avoid checking the size again -- in theory  
+    * stw_call_window_proc would have cought the resize and stored the right 
+    * size already, but unfortunately threads created before the DllMain is 
+    * called don't get a DLL_THREAD_ATTACH notification, and there is no way
+    * to know of their existing without using the not very portable PSAPI.
+    */
+   stw_framebuffer_get_size(fb);
+   
+   if(fb->must_resize) {
+      st_resize_framebuffer(fb->stfb, fb->width, fb->height);
+      fb->must_resize = FALSE;
+   }
+}                      
+
+
+void
+stw_framebuffer_cleanup( void )
+{
+   struct stw_framebuffer *fb;
+   struct stw_framebuffer *next;
+
+   pipe_mutex_lock( stw_dev->fb_mutex );
+
+   fb = stw_dev->fb_head;
+   while (fb) {
+      next = fb->next;
+      
+      pipe_mutex_lock(fb->mutex);
+      stw_framebuffer_destroy_locked(fb);
+      
+      fb = next;
+   }
+   stw_dev->fb_head = NULL;
+   
+   pipe_mutex_unlock( stw_dev->fb_mutex );
+}
+
+
+/**
+ * Given an hdc, return the corresponding stw_framebuffer.
+ */
+static INLINE struct stw_framebuffer *
+stw_framebuffer_from_hdc_locked(
+   HDC hdc )
+{
+   HWND hwnd;
+   struct stw_framebuffer *fb;
+
+   /* 
+    * Some applications create and use several HDCs for the same window, so 
+    * looking up the framebuffer by the HDC is not reliable. Use HWND whenever
+    * possible.
+    */ 
+   hwnd = WindowFromDC(hdc);
+   if(hwnd)
+      return stw_framebuffer_from_hwnd_locked(hwnd);
+   
+   for (fb = stw_dev->fb_head; fb != NULL; fb = fb->next)
+      if (fb->hDC == hdc) {
+         pipe_mutex_lock(fb->mutex);
+         break;
+      }
+
+   return fb;
+}
+
+
+/**
+ * Given an hdc, return the corresponding stw_framebuffer.
+ */
+struct stw_framebuffer *
+stw_framebuffer_from_hdc(
+   HDC hdc )
+{
+   struct stw_framebuffer *fb;
+
+   pipe_mutex_lock( stw_dev->fb_mutex );
+   fb = stw_framebuffer_from_hdc_locked(hdc);
+   pipe_mutex_unlock( stw_dev->fb_mutex );
+
+   return fb;
+}
+
+
+/**
+ * Given an hdc, return the corresponding stw_framebuffer.
+ */
+struct stw_framebuffer *
+stw_framebuffer_from_hwnd(
+   HWND hwnd )
+{
+   struct stw_framebuffer *fb;
+
+   pipe_mutex_lock( stw_dev->fb_mutex );
+   fb = stw_framebuffer_from_hwnd_locked(hwnd);
+   pipe_mutex_unlock( stw_dev->fb_mutex );
+
+   return fb;
+}
+
+
+BOOL
+stw_pixelformat_set(
+   HDC hdc,
+   int iPixelFormat )
+{
+   uint count;
+   uint index;
+   struct stw_framebuffer *fb;
+
+   index = (uint) iPixelFormat - 1;
+   count = stw_pixelformat_get_extended_count();
+   if (index >= count)
+      return FALSE;
+
+   fb = stw_framebuffer_from_hdc_locked(hdc);
+   if(fb) {
+      /* SetPixelFormat must be called only once */
+      stw_framebuffer_release( fb );
+      return FALSE;
+   }
+
+   fb = stw_framebuffer_create(hdc, iPixelFormat);
+   if(!fb) {
+      return FALSE;
+   }
+      
+   stw_framebuffer_release( fb );
+
+   /* Some applications mistakenly use the undocumented wglSetPixelFormat 
+    * function instead of SetPixelFormat, so we call SetPixelFormat here to 
+    * avoid opengl32.dll's wglCreateContext to fail */
+   if (GetPixelFormat(hdc) == 0) {
+        SetPixelFormat(hdc, iPixelFormat, NULL);
+   }
+   
+   return TRUE;
+}
+
+
+int
+stw_pixelformat_get(
+   HDC hdc )
+{
+   int iPixelFormat = 0;
+   struct stw_framebuffer *fb;
+
+   fb = stw_framebuffer_from_hdc(hdc);
+   if(fb) {
+      iPixelFormat = fb->iPixelFormat;
+      stw_framebuffer_release(fb);
+   }
+   
+   return iPixelFormat;
+}
+
+
+BOOL
+stw_swap_buffers(
+   HDC hdc )
+{
+   struct stw_framebuffer *fb;
+   struct pipe_screen *screen;
+   struct pipe_surface *surface;
+
+   fb = stw_framebuffer_from_hdc( hdc );
+   if (fb == NULL)
+      return FALSE;
+
+   if (!(fb->pfi->pfd.dwFlags & PFD_DOUBLEBUFFER)) {
+      stw_framebuffer_release(fb);
+      return TRUE;
+   }
+
+   /* If we're swapping the buffer associated with the current context
+    * we have to flush any pending rendering commands first.
+    */
+   st_notify_swapbuffers( fb->stfb );
+
+   screen = stw_dev->screen;
+   
+   if(!st_get_framebuffer_surface( fb->stfb, ST_SURFACE_BACK_LEFT, &surface )) {
+      /* FIXME: this shouldn't happen, but does on glean */
+      stw_framebuffer_release(fb);
+      return FALSE;
+   }
+
+#ifdef DEBUG
+   if(stw_dev->trace_running) {
+      screen = trace_screen(screen)->screen;
+      surface = trace_surface(surface)->surface;
+   }
+#endif
+
+   stw_dev->stw_winsys->flush_frontbuffer( screen, surface, hdc );
+   
+   stw_framebuffer_update(fb);
+   stw_framebuffer_release(fb);
+   
+   return TRUE;
+}
+
+
+BOOL
+stw_swap_layer_buffers(
+   HDC hdc,
+   UINT fuPlanes )
+{
+   if(fuPlanes & WGL_SWAP_MAIN_PLANE)
+      return stw_swap_buffers(hdc);
+
+   return FALSE;
+}
diff --git a/src/gallium/state_trackers/wgl/shared/stw_framebuffer.h b/src/gallium/state_trackers/wgl/shared/stw_framebuffer.h
new file mode 100644
index 0000000000..13d29f37e4
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_framebuffer.h
@@ -0,0 +1,148 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#ifndef STW_FRAMEBUFFER_H
+#define STW_FRAMEBUFFER_H
+
+#include <windows.h>
+
+#include "main/mtypes.h"
+
+#include "pipe/p_thread.h"
+
+struct stw_pixelformat_info;
+
+/**
+ * Windows framebuffer, derived from gl_framebuffer.
+ */
+struct stw_framebuffer
+{
+   /**
+    * This mutex has two purposes:
+    * - protect the access to the mutable data members below
+    * - prevent the the framebuffer from being deleted while being accessed.
+    * 
+    * It is OK to lock this mutex while holding the stw_device::fb_mutex lock, 
+    * but the opposite must never happen.
+    */
+   pipe_mutex mutex;
+   
+   /*
+    * Immutable members.
+    * 
+    * Note that even access to immutable members implies acquiring the mutex 
+    * above, to prevent the framebuffer from being destroyed.
+    */
+   
+   HDC hDC;
+   HWND hWnd;
+
+   int iPixelFormat;
+   const struct stw_pixelformat_info *pfi;
+   GLvisual visual;
+
+   /*
+    * Mutable members. 
+    */
+
+   struct st_framebuffer *stfb;
+   
+   /* FIXME: Make this work for multiple contexts bound to the same framebuffer */
+   boolean must_resize;
+   unsigned width;
+   unsigned height;
+   
+   /** 
+    * This is protected by stw_device::fb_mutex, not the mutex above.
+    * 
+    * Deletions must be done by first acquiring stw_device::fb_mutex, and then
+    * acquiring the stw_framebuffer::mutex of the framebuffer to be deleted. 
+    * This ensures that nobody else is reading/writing to the.
+    * 
+    * It is not necessary to aquire the mutex above to navigate the linked list
+    * given that deletions are done with stw_device::fb_mutex held, so no other
+    * thread can delete.
+    */
+   struct stw_framebuffer *next;
+};
+
+
+/**
+ * Create a new framebuffer object which will correspond to the given HDC.
+ * 
+ * This function will acquire stw_framebuffer::mutex. stw_framebuffer_release
+ * must be called when done 
+ */
+struct stw_framebuffer *
+stw_framebuffer_create(
+   HDC hdc,
+   int iPixelFormat );
+
+/**
+ * Search a framebuffer with a matching HWND.
+ * 
+ * This function will acquire stw_framebuffer::mutex. stw_framebuffer_release
+ * must be called when done 
+ */
+struct stw_framebuffer *
+stw_framebuffer_from_hwnd(
+   HWND hwnd );
+
+/**
+ * Search a framebuffer with a matching HDC.
+ * 
+ * This function will acquire stw_framebuffer::mutex. stw_framebuffer_release
+ * must be called when done 
+ */
+struct stw_framebuffer *
+stw_framebuffer_from_hdc(
+   HDC hdc );
+
+BOOL
+stw_framebuffer_allocate(
+   struct stw_framebuffer *fb );
+
+void
+stw_framebuffer_update(
+   struct stw_framebuffer *fb);
+
+/**
+ * Release stw_framebuffer::mutex lock. This framebuffer must not be accessed
+ * after calling this function, as it may have been deleted by another thread
+ * in the meanwhile.
+ */
+void
+stw_framebuffer_release(
+   struct stw_framebuffer *fb);
+
+/**
+ * Cleanup any existing framebuffers when exiting application.
+ */
+void
+stw_framebuffer_cleanup(void);
+
+#endif /* STW_FRAMEBUFFER_H */
diff --git a/src/gallium/state_trackers/wgl/shared/stw_getprocaddress.c b/src/gallium/state_trackers/wgl/shared/stw_getprocaddress.c
new file mode 100644
index 0000000000..879ced925a
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_getprocaddress.c
@@ -0,0 +1,86 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include <windows.h>
+
+#define WGL_WGLEXT_PROTOTYPES
+
+#include <GL/gl.h>
+#include <GL/wglext.h>
+
+#include "glapi/glapi.h"
+#include "stw_public.h"
+#include "stw_extgallium.h"
+
+struct stw_extension_entry
+{
+   const char *name;
+   PROC proc;
+};
+
+#define STW_EXTENSION_ENTRY(P) { #P, (PROC) P }
+
+static const struct stw_extension_entry stw_extension_entries[] = {
+
+   /* WGL_ARB_extensions_string */
+   STW_EXTENSION_ENTRY( wglGetExtensionsStringARB ),
+
+   /* WGL_ARB_pixel_format */
+   STW_EXTENSION_ENTRY( wglChoosePixelFormatARB ),
+   STW_EXTENSION_ENTRY( wglGetPixelFormatAttribfvARB ),
+   STW_EXTENSION_ENTRY( wglGetPixelFormatAttribivARB ),
+
+   /* WGL_EXT_extensions_string */
+   STW_EXTENSION_ENTRY( wglGetExtensionsStringEXT ),
+
+   /* WGL_EXT_swap_interval */
+   STW_EXTENSION_ENTRY( wglGetSwapIntervalEXT ),
+   STW_EXTENSION_ENTRY( wglSwapIntervalEXT ),
+
+   /* WGL_EXT_gallium ? */
+   STW_EXTENSION_ENTRY( wglGetGalliumScreenMESA ),
+   STW_EXTENSION_ENTRY( wglCreateGalliumContextMESA ),
+
+   { NULL, NULL }
+};
+
+PROC
+stw_get_proc_address(
+   LPCSTR lpszProc )
+{
+   const struct stw_extension_entry *entry;
+
+   if (lpszProc[0] == 'w' && lpszProc[1] == 'g' && lpszProc[2] == 'l')
+      for (entry = stw_extension_entries; entry->name; entry++)
+         if (strcmp( lpszProc, entry->name ) == 0)
+            return entry->proc;
+
+   if (lpszProc[0] == 'g' && lpszProc[1] == 'l')
+      return (PROC) _glapi_get_proc_address( lpszProc );
+
+   return NULL;
+}
diff --git a/src/gallium/state_trackers/wgl/shared/stw_pixelformat.c b/src/gallium/state_trackers/wgl/shared/stw_pixelformat.c
new file mode 100644
index 0000000000..c296744838
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_pixelformat.c
@@ -0,0 +1,370 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#include "main/mtypes.h"
+#include "main/context.h"
+
+#include "pipe/p_format.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_screen.h"
+
+#include "util/u_debug.h"
+
+#include "stw_device.h"
+#include "stw_pixelformat.h"
+#include "stw_public.h"
+#include "stw_tls.h"
+
+
+struct stw_pf_color_info
+{
+   enum pipe_format format;
+   struct {
+      unsigned char red;
+      unsigned char green;
+      unsigned char blue;
+      unsigned char alpha;
+   } bits;
+   struct {
+      unsigned char red;
+      unsigned char green;
+      unsigned char blue;
+      unsigned char alpha;
+   } shift;
+};
+
+struct stw_pf_depth_info
+{
+   enum pipe_format format;
+   struct {
+      unsigned char depth;
+      unsigned char stencil;
+   } bits;
+};
+
+
+/* NOTE: order matters, since in otherwise equal circumstances the first
+ * format listed will get chosen */
+
+static const struct stw_pf_color_info
+stw_pf_color[] = {
+   /* no-alpha */
+   { PIPE_FORMAT_X8R8G8B8_UNORM,    { 8,  8,  8,  0}, {16,  8,  0,  0} },
+   { PIPE_FORMAT_B8G8R8X8_UNORM,    { 8,  8,  8,  0}, { 8, 16, 24,  0} },
+   { PIPE_FORMAT_R5G6B5_UNORM,      { 5,  6,  5,  0}, {11,  5,  0,  0} },
+   /* alpha */
+   { PIPE_FORMAT_A8R8G8B8_UNORM,    { 8,  8,  8,  8}, {16,  8,  0, 24} },
+   { PIPE_FORMAT_B8G8R8A8_UNORM,    { 8,  8,  8,  8}, { 8, 16, 24,  0} },
+#if 0
+   { PIPE_FORMAT_A2B10G10R10_UNORM, {10, 10, 10,  2}, { 0, 10, 20, 30} },
+#endif
+   { PIPE_FORMAT_A1R5G5B5_UNORM,    { 5,  5,  5,  1}, {10,  5,  0, 15} },
+   { PIPE_FORMAT_A4R4G4B4_UNORM,    { 4,  4,  4,  4}, {16,  4,  0, 12} }
+};
+
+
+static const struct stw_pf_depth_info 
+stw_pf_depth_stencil[] = {
+   /* pure depth */
+   { PIPE_FORMAT_Z32_UNORM,   {32, 0} },
+   { PIPE_FORMAT_Z24X8_UNORM, {24, 0} },
+   { PIPE_FORMAT_X8Z24_UNORM, {24, 0} },
+   { PIPE_FORMAT_Z16_UNORM,   {16, 0} },
+   /* pure stencil */
+   { PIPE_FORMAT_S8_UNORM,    { 0, 8} },
+   /* combined depth-stencil */
+   { PIPE_FORMAT_S8Z24_UNORM, {24, 8} },
+   { PIPE_FORMAT_Z24S8_UNORM, {24, 8} }
+};
+
+
+static const boolean 
+stw_pf_doublebuffer[] = {
+   FALSE,
+   TRUE,
+};
+
+
+const unsigned 
+stw_pf_multisample[] = {
+   0,
+   4
+};
+
+
+static void
+stw_pixelformat_add(
+   struct stw_device *stw_dev,
+   const struct stw_pf_color_info *color,
+   const struct stw_pf_depth_info *depth,
+   unsigned accum,
+   boolean doublebuffer,
+   unsigned samples )
+{
+   boolean extended = FALSE;
+   struct stw_pixelformat_info *pfi;
+   
+   assert(stw_dev->pixelformat_extended_count < STW_MAX_PIXELFORMATS);
+   if(stw_dev->pixelformat_extended_count >= STW_MAX_PIXELFORMATS)
+      return;
+
+   assert(pf_layout( color->format ) == PIPE_FORMAT_LAYOUT_RGBAZS );
+   assert(pf_get_component_bits( color->format, PIPE_FORMAT_COMP_R ) == color->bits.red );
+   assert(pf_get_component_bits( color->format, PIPE_FORMAT_COMP_G ) == color->bits.green );
+   assert(pf_get_component_bits( color->format, PIPE_FORMAT_COMP_B ) == color->bits.blue );
+   assert(pf_get_component_bits( color->format, PIPE_FORMAT_COMP_A ) == color->bits.alpha );
+   assert(pf_layout( depth->format ) == PIPE_FORMAT_LAYOUT_RGBAZS );
+   assert(pf_get_component_bits( depth->format, PIPE_FORMAT_COMP_Z ) == depth->bits.depth );
+   assert(pf_get_component_bits( depth->format, PIPE_FORMAT_COMP_S ) == depth->bits.stencil );
+   
+   pfi = &stw_dev->pixelformats[stw_dev->pixelformat_extended_count];
+   
+   memset(pfi, 0, sizeof *pfi);
+   
+   pfi->color_format = color->format;
+   pfi->depth_stencil_format = depth->format;
+   
+   pfi->pfd.nSize = sizeof pfi->pfd;
+   pfi->pfd.nVersion = 1;
+
+   pfi->pfd.dwFlags = PFD_SUPPORT_OPENGL;
+   
+   /* TODO: also support non-native pixel formats */
+   pfi->pfd.dwFlags |= PFD_DRAW_TO_WINDOW ;
+   
+   if (doublebuffer)
+      pfi->pfd.dwFlags |= PFD_DOUBLEBUFFER | PFD_SWAP_COPY;
+   
+   pfi->pfd.iPixelType = PFD_TYPE_RGBA;
+
+   pfi->pfd.cColorBits = color->bits.red + color->bits.green + color->bits.blue + color->bits.alpha;
+   pfi->pfd.cRedBits = color->bits.red;
+   pfi->pfd.cRedShift = color->shift.red;
+   pfi->pfd.cGreenBits = color->bits.green;
+   pfi->pfd.cGreenShift = color->shift.green;
+   pfi->pfd.cBlueBits = color->bits.blue;
+   pfi->pfd.cBlueShift = color->shift.blue;
+   pfi->pfd.cAlphaBits = color->bits.alpha;
+   pfi->pfd.cAlphaShift = color->shift.alpha;
+   pfi->pfd.cAccumBits = 4*accum;
+   pfi->pfd.cAccumRedBits = accum;
+   pfi->pfd.cAccumGreenBits = accum;
+   pfi->pfd.cAccumBlueBits = accum;
+   pfi->pfd.cAccumAlphaBits = accum;
+   pfi->pfd.cDepthBits = depth->bits.depth;
+   pfi->pfd.cStencilBits = depth->bits.stencil;
+   pfi->pfd.cAuxBuffers = 0;
+   pfi->pfd.iLayerType = 0;
+   pfi->pfd.bReserved = 0;
+   pfi->pfd.dwLayerMask = 0;
+   pfi->pfd.dwVisibleMask = 0;
+   pfi->pfd.dwDamageMask = 0;
+
+   if(samples) {
+      pfi->numSampleBuffers = 1;
+      pfi->numSamples = samples;
+      extended = TRUE;
+   }
+   
+   ++stw_dev->pixelformat_extended_count;
+   
+   if(!extended) {
+      ++stw_dev->pixelformat_count;
+      assert(stw_dev->pixelformat_count == stw_dev->pixelformat_extended_count);
+   }
+}
+
+void
+stw_pixelformat_init( void )
+{
+   struct pipe_screen *screen = stw_dev->screen;
+   unsigned i, j, k, l;
+   
+   assert( !stw_dev->pixelformat_count );
+   assert( !stw_dev->pixelformat_extended_count );
+
+   for(i = 0; i < Elements(stw_pf_multisample); ++i) {
+      unsigned samples = stw_pf_multisample[i];
+      
+      /* FIXME: re-enabled MSAA when we can query it */
+      if(samples)
+         continue;
+
+      for(j = 0; j < Elements(stw_pf_color); ++j) {
+         const struct stw_pf_color_info *color = &stw_pf_color[j];
+         
+         if(!screen->is_format_supported(screen, color->format, PIPE_TEXTURE_2D, 
+                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
+            continue;
+         
+         for(k = 0; k < Elements(stw_pf_doublebuffer); ++k) {
+            unsigned doublebuffer = stw_pf_doublebuffer[k];
+            
+            for(l = 0; l < Elements(stw_pf_depth_stencil); ++l) {
+               const struct stw_pf_depth_info *depth = &stw_pf_depth_stencil[l];
+               
+               if(!screen->is_format_supported(screen, depth->format, PIPE_TEXTURE_2D, 
+                                               PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0))
+                  continue;
+
+               stw_pixelformat_add( stw_dev, color, depth,  0, doublebuffer, samples );
+               stw_pixelformat_add( stw_dev, color, depth, 16, doublebuffer, samples );
+            }
+         }
+      }
+   }
+   
+   assert( stw_dev->pixelformat_count <= stw_dev->pixelformat_extended_count );
+   assert( stw_dev->pixelformat_extended_count <= STW_MAX_PIXELFORMATS );
+}
+
+uint
+stw_pixelformat_get_count( void )
+{
+   return stw_dev->pixelformat_count;
+}
+
+uint
+stw_pixelformat_get_extended_count( void )
+{
+   return stw_dev->pixelformat_extended_count;
+}
+
+const struct stw_pixelformat_info *
+stw_pixelformat_get_info( uint index )
+{
+   assert( index < stw_dev->pixelformat_extended_count );
+
+   return &stw_dev->pixelformats[index];
+}
+
+
+void
+stw_pixelformat_visual(GLvisual *visual, 
+                       const struct stw_pixelformat_info *pfi )
+{
+   memset(visual, 0, sizeof *visual);
+   _mesa_initialize_visual(
+      visual,
+      (pfi->pfd.iPixelType == PFD_TYPE_RGBA) ? GL_TRUE : GL_FALSE,
+      (pfi->pfd.dwFlags & PFD_DOUBLEBUFFER) ? GL_TRUE : GL_FALSE,
+      (pfi->pfd.dwFlags & PFD_STEREO) ? GL_TRUE : GL_FALSE,
+      pfi->pfd.cRedBits,
+      pfi->pfd.cGreenBits,
+      pfi->pfd.cBlueBits,
+      pfi->pfd.cAlphaBits,
+      (pfi->pfd.iPixelType == PFD_TYPE_COLORINDEX) ? pfi->pfd.cColorBits : 0,
+      pfi->pfd.cDepthBits,
+      pfi->pfd.cStencilBits,
+      pfi->pfd.cAccumRedBits,
+      pfi->pfd.cAccumGreenBits,
+      pfi->pfd.cAccumBlueBits,
+      pfi->pfd.cAccumAlphaBits,
+      pfi->numSamples );
+}
+
+
+int
+stw_pixelformat_describe(
+   HDC hdc,
+   int iPixelFormat,
+   UINT nBytes,
+   LPPIXELFORMATDESCRIPTOR ppfd )
+{
+   uint count;
+   uint index;
+   const struct stw_pixelformat_info *pfi;
+
+   (void) hdc;
+
+   count = stw_pixelformat_get_extended_count();
+   index = (uint) iPixelFormat - 1;
+
+   if (ppfd == NULL)
+      return count;
+   if (index >= count || nBytes != sizeof( PIXELFORMATDESCRIPTOR ))
+      return 0;
+
+   pfi = stw_pixelformat_get_info( index );
+   
+   memcpy(ppfd, &pfi->pfd, sizeof( PIXELFORMATDESCRIPTOR ));
+
+   return count;
+}
+
+/* Only used by the wgl code, but have it here to avoid exporting the
+ * pixelformat.h functionality.
+ */
+int stw_pixelformat_choose( HDC hdc,
+                            CONST PIXELFORMATDESCRIPTOR *ppfd )
+{
+   uint count;
+   uint index;
+   uint bestindex;
+   uint bestdelta;
+
+   (void) hdc;
+
+   count = stw_pixelformat_get_count();
+   bestindex = count;
+   bestdelta = ~0U;
+
+   for (index = 0; index < count; index++) {
+      uint delta = 0;
+      const struct stw_pixelformat_info *pfi = stw_pixelformat_get_info( index );
+
+      if (!(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE) &&
+          !!(ppfd->dwFlags & PFD_DOUBLEBUFFER) !=
+          !!(pfi->pfd.dwFlags & PFD_DOUBLEBUFFER))
+         continue;
+
+      /* FIXME: Take in account individual channel bits */
+      if (ppfd->cColorBits != pfi->pfd.cColorBits)
+         delta += 8;
+
+      if (ppfd->cDepthBits != pfi->pfd.cDepthBits)
+         delta += 4;
+
+      if (ppfd->cStencilBits != pfi->pfd.cStencilBits)
+         delta += 2;
+
+      if (ppfd->cAlphaBits != pfi->pfd.cAlphaBits)
+         delta++;
+
+      if (delta < bestdelta) {
+         bestindex = index;
+         bestdelta = delta;
+         if (bestdelta == 0)
+            break;
+      }
+   }
+
+   if (bestindex == count)
+      return 0;
+
+   return bestindex + 1;
+}
diff --git a/src/gallium/state_trackers/wgl/shared/stw_pixelformat.h b/src/gallium/state_trackers/wgl/shared/stw_pixelformat.h
new file mode 100644
index 0000000000..bec429231b
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_pixelformat.h
@@ -0,0 +1,65 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#ifndef STW_PIXELFORMAT_H
+#define STW_PIXELFORMAT_H
+
+#include <windows.h>
+
+#include "main/mtypes.h"
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_format.h"
+
+struct stw_pixelformat_info
+{
+   enum pipe_format color_format;
+   enum pipe_format depth_stencil_format;
+   
+   PIXELFORMATDESCRIPTOR pfd;
+   
+   unsigned numSampleBuffers;
+   unsigned numSamples;
+};
+
+void
+stw_pixelformat_init( void );
+
+uint
+stw_pixelformat_get_count( void );
+
+uint
+stw_pixelformat_get_extended_count( void );
+
+const struct stw_pixelformat_info *
+stw_pixelformat_get_info( uint index );
+
+void
+stw_pixelformat_visual(GLvisual *visual, 
+                       const struct stw_pixelformat_info *pfi );
+
+#endif /* STW_PIXELFORMAT_H */
diff --git a/src/gallium/state_trackers/wgl/shared/stw_public.h b/src/gallium/state_trackers/wgl/shared/stw_public.h
new file mode 100644
index 0000000000..7fe9cfb356
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_public.h
@@ -0,0 +1,73 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef STW_PUBLIC_H
+#define STW_PUBLIC_H
+
+#include <windows.h>
+
+BOOL stw_copy_context( UINT_PTR hglrcSrc,
+                       UINT_PTR hglrcDst,
+                       UINT mask );
+
+UINT_PTR stw_create_layer_context( HDC hdc, 
+                                   int iLayerPlane );
+
+BOOL stw_share_lists( UINT_PTR hglrc1, UINT_PTR hglrc2 );
+
+BOOL stw_delete_context( UINT_PTR hglrc );
+
+BOOL
+stw_release_context( UINT_PTR dhglrc );
+
+UINT_PTR stw_get_current_context( void );
+
+HDC stw_get_current_dc( void );
+
+BOOL stw_make_current( HDC hdc, UINT_PTR hglrc );
+
+BOOL stw_swap_buffers( HDC hdc );
+
+BOOL
+stw_swap_layer_buffers( HDC hdc, UINT fuPlanes );
+
+PROC stw_get_proc_address( LPCSTR lpszProc );
+
+int stw_pixelformat_describe( HDC hdc,
+                              int iPixelFormat,
+                              UINT nBytes,
+                              LPPIXELFORMATDESCRIPTOR ppfd );
+
+int stw_pixelformat_get( HDC hdc );
+
+BOOL stw_pixelformat_set( HDC hdc,
+                          int iPixelFormat );
+
+int stw_pixelformat_choose( HDC hdc,
+                            CONST PIXELFORMATDESCRIPTOR *ppfd );
+
+#endif
diff --git a/src/gallium/state_trackers/wgl/shared/stw_tls.c b/src/gallium/state_trackers/wgl/shared/stw_tls.c
new file mode 100644
index 0000000000..4bd6a9289c
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_tls.c
@@ -0,0 +1,139 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include <windows.h>
+
+#include "pipe/p_compiler.h"
+#include "util/u_memory.h"
+#include "stw_tls.h"
+
+static DWORD tlsIndex = TLS_OUT_OF_INDEXES;
+
+boolean
+stw_tls_init(void)
+{
+   tlsIndex = TlsAlloc();
+   if (tlsIndex == TLS_OUT_OF_INDEXES) {
+      return FALSE;
+   }
+
+   return TRUE;
+}
+
+static INLINE struct stw_tls_data *
+stw_tls_data_create()
+{
+   struct stw_tls_data *data;
+
+   data = CALLOC_STRUCT(stw_tls_data);
+   if (!data)
+      goto no_data;
+
+   data->hCallWndProcHook = SetWindowsHookEx(WH_CALLWNDPROC,
+                                             stw_call_window_proc,
+                                             NULL,
+                                             GetCurrentThreadId());
+   if(data->hCallWndProcHook == NULL)
+      goto no_hook;
+
+   TlsSetValue(tlsIndex, data);
+
+   return data;
+
+no_hook:
+   FREE(data);
+no_data:
+   return NULL;
+}
+
+boolean
+stw_tls_init_thread(void)
+{
+   struct stw_tls_data *data;
+
+   if (tlsIndex == TLS_OUT_OF_INDEXES) {
+      return FALSE;
+   }
+
+   data = stw_tls_data_create();
+   if(!data)
+      return FALSE;
+
+   return TRUE;
+}
+
+void
+stw_tls_cleanup_thread(void)
+{
+   struct stw_tls_data *data;
+
+   if (tlsIndex == TLS_OUT_OF_INDEXES) {
+      return;
+   }
+
+   data = (struct stw_tls_data *) TlsGetValue(tlsIndex);
+   if(data) {
+      TlsSetValue(tlsIndex, NULL);
+   
+      if(data->hCallWndProcHook) {
+         UnhookWindowsHookEx(data->hCallWndProcHook);
+         data->hCallWndProcHook = NULL;
+      }
+   
+      FREE(data);
+   }
+}
+
+void
+stw_tls_cleanup(void)
+{
+   if (tlsIndex != TLS_OUT_OF_INDEXES) {
+      TlsFree(tlsIndex);
+      tlsIndex = TLS_OUT_OF_INDEXES;
+   }
+}
+
+struct stw_tls_data *
+stw_tls_get_data(void)
+{
+   struct stw_tls_data *data;
+   
+   if (tlsIndex == TLS_OUT_OF_INDEXES) {
+      return NULL;
+   }
+   
+   data = (struct stw_tls_data *) TlsGetValue(tlsIndex);
+   if(!data) {
+      /* DllMain is called with DLL_THREAD_ATTACH only by threads created after 
+       * the DLL is loaded by the process */
+      data = stw_tls_data_create();
+      if(!data)
+         return NULL;
+   }
+
+   return data;
+}
diff --git a/src/gallium/state_trackers/wgl/shared/stw_tls.h b/src/gallium/state_trackers/wgl/shared/stw_tls.h
new file mode 100644
index 0000000000..fbf8b1cbee
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_tls.h
@@ -0,0 +1,59 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef STW_TLS_H
+#define STW_TLS_H
+
+#include <windows.h>
+
+struct stw_tls_data
+{
+   HHOOK hCallWndProcHook;
+};
+
+boolean
+stw_tls_init(void);
+
+boolean
+stw_tls_init_thread(void);
+
+void
+stw_tls_cleanup_thread(void);
+
+void
+stw_tls_cleanup(void);
+
+struct stw_tls_data *
+stw_tls_get_data(void);
+
+LRESULT CALLBACK
+stw_call_window_proc(
+   int nCode,
+   WPARAM wParam,
+   LPARAM lParam );
+
+#endif /* STW_TLS_H */
diff --git a/src/gallium/state_trackers/wgl/shared/stw_winsys.h b/src/gallium/state_trackers/wgl/shared/stw_winsys.h
new file mode 100644
index 0000000000..c0bf82c9ed
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/shared/stw_winsys.h
@@ -0,0 +1,65 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef STW_WINSYS_H
+#define STW_WINSYS_H
+
+#include <windows.h> /* for HDC */
+
+#include "pipe/p_compiler.h"
+
+struct pipe_screen;
+struct pipe_context;
+struct pipe_surface;
+
+struct stw_winsys
+{
+   struct pipe_screen *
+   (*create_screen)( void );
+
+   struct pipe_context *
+   (*create_context)( struct pipe_screen *screen );
+
+   void
+   (*flush_frontbuffer)( struct pipe_screen *screen,
+                         struct pipe_surface *surf,
+                         HDC hDC );
+};
+
+boolean
+stw_init(const struct stw_winsys *stw_winsys);
+
+boolean
+stw_init_thread(void);
+
+void
+stw_cleanup_thread(void);
+
+void
+stw_cleanup(void);
+
+#endif /* STW_WINSYS_H */
diff --git a/src/gallium/state_trackers/wgl/wgl/stw_wgl.c b/src/gallium/state_trackers/wgl/wgl/stw_wgl.c
new file mode 100644
index 0000000000..a131292f7a
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/wgl/stw_wgl.c
@@ -0,0 +1,329 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include <windows.h>
+
+#include "util/u_debug.h"
+#include "shared/stw_public.h"
+#include "stw_wgl.h"
+
+
+WINGDIAPI BOOL APIENTRY
+wglCopyContext(
+   HGLRC hglrcSrc,
+   HGLRC hglrcDst,
+   UINT mask )
+{
+   return stw_copy_context( (UINT_PTR)hglrcSrc, 
+                            (UINT_PTR)hglrcDst, 
+                            mask );
+}
+
+WINGDIAPI HGLRC APIENTRY
+wglCreateContext(
+   HDC hdc )
+{
+   return wglCreateLayerContext(hdc, 0);
+}
+
+WINGDIAPI HGLRC APIENTRY
+wglCreateLayerContext(
+   HDC hdc,
+   int iLayerPlane )
+{
+   return (HGLRC) stw_create_layer_context( hdc, iLayerPlane );
+}
+
+WINGDIAPI BOOL APIENTRY
+wglDeleteContext(
+   HGLRC hglrc )
+{
+   return stw_delete_context( (UINT_PTR)hglrc );
+}
+
+
+WINGDIAPI HGLRC APIENTRY
+wglGetCurrentContext( VOID )
+{
+   return (HGLRC)stw_get_current_context();
+}
+
+WINGDIAPI HDC APIENTRY
+wglGetCurrentDC( VOID )
+{
+   return stw_get_current_dc();
+}
+
+WINGDIAPI BOOL APIENTRY
+wglMakeCurrent(
+   HDC hdc,
+   HGLRC hglrc )
+{
+   return stw_make_current( hdc, (UINT_PTR)hglrc );
+}
+
+
+WINGDIAPI BOOL APIENTRY
+wglSwapBuffers(
+   HDC hdc )
+{
+   return stw_swap_buffers( hdc );
+}
+
+
+WINGDIAPI BOOL APIENTRY
+wglSwapLayerBuffers(
+   HDC hdc,
+   UINT fuPlanes )
+{
+   return stw_swap_layer_buffers( hdc, fuPlanes );
+}
+
+WINGDIAPI PROC APIENTRY
+wglGetProcAddress(
+    LPCSTR lpszProc )
+{
+   return stw_get_proc_address( lpszProc );
+}
+
+
+WINGDIAPI int APIENTRY
+wglChoosePixelFormat(
+   HDC hdc,
+   CONST PIXELFORMATDESCRIPTOR *ppfd )
+{
+   if (ppfd->nSize != sizeof( PIXELFORMATDESCRIPTOR ) || ppfd->nVersion != 1)
+      return 0;
+   if (ppfd->iPixelType != PFD_TYPE_RGBA)
+      return 0;
+   if (!(ppfd->dwFlags & PFD_DRAW_TO_WINDOW))
+      return 0;
+   if (!(ppfd->dwFlags & PFD_SUPPORT_OPENGL))
+      return 0;
+   if (ppfd->dwFlags & PFD_DRAW_TO_BITMAP)
+      return 0;
+   if (ppfd->dwFlags & PFD_SUPPORT_GDI)
+      return 0;
+   if (!(ppfd->dwFlags & PFD_STEREO_DONTCARE) && (ppfd->dwFlags & PFD_STEREO))
+      return 0;
+
+   return stw_pixelformat_choose( hdc, ppfd );
+}
+
+WINGDIAPI int APIENTRY
+wglDescribePixelFormat(
+   HDC hdc,
+   int iPixelFormat,
+   UINT nBytes,
+   LPPIXELFORMATDESCRIPTOR ppfd )
+{
+   return stw_pixelformat_describe( hdc, iPixelFormat, nBytes, ppfd );
+}
+
+WINGDIAPI int APIENTRY
+wglGetPixelFormat(
+   HDC hdc )
+{
+   return stw_pixelformat_get( hdc );
+}
+
+WINGDIAPI BOOL APIENTRY
+wglSetPixelFormat(
+   HDC hdc,
+   int iPixelFormat,
+   const PIXELFORMATDESCRIPTOR *ppfd )
+{
+   if (ppfd->nSize != sizeof( PIXELFORMATDESCRIPTOR ))
+      return FALSE;
+
+   return stw_pixelformat_set( hdc, iPixelFormat );
+}
+
+
+WINGDIAPI BOOL APIENTRY
+wglUseFontBitmapsA(
+   HDC hdc,
+   DWORD first,
+   DWORD count,
+   DWORD listBase )
+{
+   (void) hdc;
+   (void) first;
+   (void) count;
+   (void) listBase;
+
+   assert( 0 );
+
+   return FALSE;
+}
+
+WINGDIAPI BOOL APIENTRY
+wglShareLists(
+   HGLRC hglrc1,
+   HGLRC hglrc2 )
+{
+   return stw_share_lists( (UINT_PTR)hglrc1, (UINT_PTR)hglrc2);;
+}
+
+WINGDIAPI BOOL APIENTRY
+wglUseFontBitmapsW(
+   HDC hdc,
+   DWORD first,
+   DWORD count,
+   DWORD listBase )
+{
+   (void) hdc;
+   (void) first;
+   (void) count;
+   (void) listBase;
+
+   assert( 0 );
+
+   return FALSE;
+}
+
+WINGDIAPI BOOL APIENTRY
+wglUseFontOutlinesA(
+   HDC hdc,
+   DWORD first,
+   DWORD count,
+   DWORD listBase,
+   FLOAT deviation,
+   FLOAT extrusion,
+   int format,
+   LPGLYPHMETRICSFLOAT lpgmf )
+{
+   (void) hdc;
+   (void) first;
+   (void) count;
+   (void) listBase;
+   (void) deviation;
+   (void) extrusion;
+   (void) format;
+   (void) lpgmf;
+
+   assert( 0 );
+
+   return FALSE;
+}
+
+WINGDIAPI BOOL APIENTRY
+wglUseFontOutlinesW(
+   HDC hdc,
+   DWORD first,
+   DWORD count,
+   DWORD listBase,
+   FLOAT deviation,
+   FLOAT extrusion,
+   int format,
+   LPGLYPHMETRICSFLOAT lpgmf )
+{
+   (void) hdc;
+   (void) first;
+   (void) count;
+   (void) listBase;
+   (void) deviation;
+   (void) extrusion;
+   (void) format;
+   (void) lpgmf;
+
+   assert( 0 );
+
+   return FALSE;
+}
+
+WINGDIAPI BOOL APIENTRY
+wglDescribeLayerPlane(
+   HDC hdc,
+   int iPixelFormat,
+   int iLayerPlane,
+   UINT nBytes,
+   LPLAYERPLANEDESCRIPTOR plpd )
+{
+   (void) hdc;
+   (void) iPixelFormat;
+   (void) iLayerPlane;
+   (void) nBytes;
+   (void) plpd;
+
+   assert( 0 );
+
+   return FALSE;
+}
+
+WINGDIAPI int APIENTRY
+wglSetLayerPaletteEntries(
+   HDC hdc,
+   int iLayerPlane,
+   int iStart,
+   int cEntries,
+   CONST COLORREF *pcr )
+{
+   (void) hdc;
+   (void) iLayerPlane;
+   (void) iStart;
+   (void) cEntries;
+   (void) pcr;
+
+   assert( 0 );
+
+   return 0;
+}
+
+WINGDIAPI int APIENTRY
+wglGetLayerPaletteEntries(
+   HDC hdc,
+   int iLayerPlane,
+   int iStart,
+   int cEntries,
+   COLORREF *pcr )
+{
+   (void) hdc;
+   (void) iLayerPlane;
+   (void) iStart;
+   (void) cEntries;
+   (void) pcr;
+
+   assert( 0 );
+
+   return 0;
+}
+
+WINGDIAPI BOOL APIENTRY
+wglRealizeLayerPalette(
+   HDC hdc,
+   int iLayerPlane,
+   BOOL bRealize )
+{
+   (void) hdc;
+   (void) iLayerPlane;
+   (void) bRealize;
+
+   assert( 0 );
+
+   return FALSE;
+}
diff --git a/src/gallium/state_trackers/wgl/wgl/stw_wgl.h b/src/gallium/state_trackers/wgl/wgl/stw_wgl.h
new file mode 100644
index 0000000000..a98179944a
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/wgl/stw_wgl.h
@@ -0,0 +1,63 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef STW_WGL_H_
+#define STW_WGL_H_
+
+
+#include <windows.h>
+
+#include <GL/gl.h>
+
+
+/*
+ * Undeclared APIs exported by opengl32.dll
+ */
+
+WINGDIAPI BOOL WINAPI
+wglSwapBuffers(HDC hdc);
+
+WINGDIAPI int WINAPI
+wglChoosePixelFormat(HDC hdc,
+                     CONST PIXELFORMATDESCRIPTOR *ppfd);
+
+WINGDIAPI int WINAPI
+wglDescribePixelFormat(HDC hdc,
+                       int iPixelFormat,
+                       UINT nBytes,
+                       LPPIXELFORMATDESCRIPTOR ppfd);
+
+WINGDIAPI int WINAPI
+wglGetPixelFormat(HDC hdc);
+
+WINGDIAPI BOOL WINAPI
+wglSetPixelFormat(HDC hdc,
+                  int iPixelFormat,
+                  CONST PIXELFORMATDESCRIPTOR *ppfd);
+
+
+#endif /* STW_WGL_H_ */