massive reduction of unneeded files

1 files changed, 0 insertions, 1750 deletions

diff --git a/nx-X11/extras/Mesa/src/mesa/main/context.c.X.original b/nx-X11/extras/Mesa/src/mesa/main/context.c.X.original
deleted file mode 100644
index 25a3f6a37..000000000
--- a/nx-X11/extras/Mesa/src/mesa/main/context.c.X.original
+++ /dev/null
@@ -1,1750 +0,0 @@
-/**
- * \file context.c
- * Mesa context/visual/framebuffer management functions.
- * \author Brian Paul
- */
-
-/*
- * Mesa 3-D graphics library
- * Version:  6.4
- *
- * Copyright (C) 1999-2005  Brian Paul   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, sublicense,
- * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL 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.
- */
-
-
-/**
- * \mainpage Mesa Main Module
- *
- * \section MainIntroduction Introduction
- *
- * The Mesa Main module consists of all the files in the main/ directory.
- * Among the features of this module are:
- * <UL>
- * <LI> Structures to represent most GL state </LI>
- * <LI> State set/get functions </LI>
- * <LI> Display lists </LI>
- * <LI> Texture unit, object and image handling </LI>
- * <LI> Matrix and attribute stacks </LI>
- * </UL>
- *
- * Other modules are responsible for API dispatch, vertex transformation,
- * point/line/triangle setup, rasterization, vertex array caching,
- * vertex/fragment programs/shaders, etc.
- *
- *
- * \section AboutDoxygen About Doxygen
- *
- * If you're viewing this information as Doxygen-generated HTML you'll
- * see the documentation index at the top of this page.
- *
- * The first line lists the Mesa source code modules.
- * The second line lists the indexes available for viewing the documentation
- * for each module.
- *
- * Selecting the <b>Main page</b> link will display a summary of the module
- * (this page).
- *
- * Selecting <b>Data Structures</b> will list all C structures.
- *
- * Selecting the <b>File List</b> link will list all the source files in
- * the module.
- * Selecting a filename will show a list of all functions defined in that file.
- *
- * Selecting the <b>Data Fields</b> link will display a list of all
- * documented structure members.
- *
- * Selecting the <b>Globals</b> link will display a list
- * of all functions, structures, global variables and macros in the module.
- *
- */
-
-
-#include "glheader.h"
-#include "imports.h"
-#include "accum.h"
-#include "attrib.h"
-#include "blend.h"
-#include "buffers.h"
-#include "bufferobj.h"
-#include "colortab.h"
-#include "context.h"
-#include "debug.h"
-#include "depth.h"
-#include "dlist.h"
-#include "eval.h"
-#include "enums.h"
-#include "extensions.h"
-#include "fbobject.h"
-#include "feedback.h"
-#include "fog.h"
-#include "get.h"
-#include "glthread.h"
-#include "glapioffsets.h"
-#include "histogram.h"
-#include "hint.h"
-#include "hash.h"
-#include "light.h"
-#include "lines.h"
-#include "macros.h"
-#include "matrix.h"
-#include "occlude.h"
-#include "pixel.h"
-#include "points.h"
-#include "polygon.h"
-#if FEATURE_NV_vertex_program || FEATURE_NV_fragment_program
-#include "program.h"
-#endif
-#include "rastpos.h"
-#include "simple_list.h"
-#include "state.h"
-#include "stencil.h"
-#include "texcompress.h"
-#include "teximage.h"
-#include "texobj.h"
-#include "texstate.h"
-#include "mtypes.h"
-#include "varray.h"
-#include "version.h"
-#include "vtxfmt.h"
-#if _HAVE_FULL_GL
-#include "math/m_translate.h"
-#include "math/m_matrix.h"
-#include "math/m_xform.h"
-#include "math/mathmod.h"
-#endif
-#include "shaderobjects.h"
-
-#ifdef USE_SPARC_ASM
-#include "sparc/sparc.h"
-#endif
-
-#ifndef MESA_VERBOSE
-int MESA_VERBOSE = 0;
-#endif
-
-#ifndef MESA_DEBUG_FLAGS
-int MESA_DEBUG_FLAGS = 0;
-#endif
-
-
-/* ubyte -> float conversion */
-GLfloat _mesa_ubyte_to_float_color_tab[256];
-
-static void
-free_shared_state( GLcontext *ctx, struct gl_shared_state *ss );
-
-
-/**********************************************************************/
-/** \name OpenGL SI-style interface (new in Mesa 3.5)
- *
- * \if subset
- * \note Most of these functions are never called in the Mesa subset.
- * \endif
- */
-/*@{*/
-
-/**
- * Destroy context callback.
- * 
- * \param gc context.
- * \return GL_TRUE on success, or GL_FALSE on failure.
- * 
- * \ifnot subset
- * Called by window system/device driver (via __GLexports::destroyCurrent) when
- * the rendering context is to be destroyed.
- * \endif
- *
- * Frees the context data and the context structure.
- */
-GLboolean
-_mesa_destroyContext(__GLcontext *gc)
-{
-   if (gc) {
-      _mesa_free_context_data(gc);
-      _mesa_free(gc);
-   }
-   return GL_TRUE;
-}
-
-/**
- * Unbind context callback.
- * 
- * \param gc context.
- * \return GL_TRUE on success, or GL_FALSE on failure.
- *
- * \ifnot subset
- * Called by window system/device driver (via __GLexports::loseCurrent)
- * when the rendering context is made non-current.
- * \endif
- *
- * No-op
- */
-GLboolean
-_mesa_loseCurrent(__GLcontext *gc)
-{
-   /* XXX unbind context from thread */
-   (void) gc;
-   return GL_TRUE;
-}
-
-/**
- * Bind context callback.
- * 
- * \param gc context.
- * \return GL_TRUE on success, or GL_FALSE on failure.
- *
- * \ifnot subset
- * Called by window system/device driver (via __GLexports::makeCurrent)
- * when the rendering context is made current.
- * \endif
- *
- * No-op
- */
-GLboolean
-_mesa_makeCurrent(__GLcontext *gc)
-{
-   /* XXX bind context to thread */
-   (void) gc;
-   return GL_TRUE;
-}
-
-/**
- * Share context callback.
- * 
- * \param gc context.
- * \param gcShare shared context.
- * \return GL_TRUE on success, or GL_FALSE on failure.
- *
- * \ifnot subset
- * Called by window system/device driver (via __GLexports::shareContext)
- * \endif
- *
- * Update the shared context reference count, gl_shared_state::RefCount.
- */
-GLboolean
-_mesa_shareContext(__GLcontext *gc, __GLcontext *gcShare)
-{
-   if (gc && gcShare && gc->Shared && gcShare->Shared) {
-      gc->Shared->RefCount--;
-      if (gc->Shared->RefCount == 0) {
-         free_shared_state(gc, gc->Shared);
-      }
-      gc->Shared = gcShare->Shared;
-      gc->Shared->RefCount++;
-      return GL_TRUE;
-   }
-   else {
-      return GL_FALSE;
-   }
-}
-
-
-#if _HAVE_FULL_GL
-/**
- * Copy context callback.
- */
-GLboolean
-_mesa_copyContext(__GLcontext *dst, const __GLcontext *src, GLuint mask)
-{
-   if (dst && src) {
-      _mesa_copy_context( src, dst, mask );
-      return GL_TRUE;
-   }
-   else {
-      return GL_FALSE;
-   }
-}
-#endif
-
-/** No-op */
-GLboolean
-_mesa_forceCurrent(__GLcontext *gc)
-{
-   (void) gc;
-   return GL_TRUE;
-}
-
-/**
- * Windows/buffer resizing notification callback.
- *
- * \param gc GL context.
- * \return GL_TRUE on success, or GL_FALSE on failure.
- */
-GLboolean
-_mesa_notifyResize(__GLcontext *gc)
-{
-   GLint x, y;
-   GLuint width, height;
-   __GLdrawablePrivate *d = gc->imports.getDrawablePrivate(gc);
-   if (!d || !d->getDrawableSize)
-      return GL_FALSE;
-   d->getDrawableSize( d, &x, &y, &width, &height );
-   /* update viewport, resize software buffers, etc. */
-   return GL_TRUE;
-}
-
-/**
- * Window/buffer destruction notification callback.
- *
- * \param gc GL context.
- * 
- * Called when the context's window/buffer is going to be destroyed. 
- *
- * No-op
- */
-void
-_mesa_notifyDestroy(__GLcontext *gc)
-{
-   /* Unbind from it. */
-   (void) gc;
-}
-
-/**
- * Swap buffers notification callback.
- * 
- * \param gc GL context.
- *
- * Called by window system just before swapping buffers.
- * We have to finish any pending rendering.
- */
-void
-_mesa_notifySwapBuffers(__GLcontext *gc)
-{
-   FLUSH_VERTICES( gc, 0 );
-}
-
-/** No-op */
-struct __GLdispatchStateRec *
-_mesa_dispatchExec(__GLcontext *gc)
-{
-   (void) gc;
-   return NULL;
-}
-
-/** No-op */
-void
-_mesa_beginDispatchOverride(__GLcontext *gc)
-{
-   (void) gc;
-}
-
-/** No-op */
-void
-_mesa_endDispatchOverride(__GLcontext *gc)
-{
-   (void) gc;
-}
-
-/**
- * \ifnot subset
- * Setup the exports.  
- *
- * The window system will call these functions when it needs Mesa to do
- * something.
- * 
- * \note Device drivers should override these functions!  For example,
- * the Xlib driver should plug in the XMesa*-style functions into this
- * structure.  The XMesa-style functions should then call the _mesa_*
- * version of these functions.  This is an approximation to OO design
- * (inheritance and virtual functions).
- * \endif
- *
- * \if subset
- * No-op.
- * 
- * \endif
- */
-static void
-_mesa_init_default_exports(__GLexports *exports)
-{
-#if _HAVE_FULL_GL
-    exports->destroyContext = _mesa_destroyContext;
-    exports->loseCurrent = _mesa_loseCurrent;
-    exports->makeCurrent = _mesa_makeCurrent;
-    exports->shareContext = _mesa_shareContext;
-    exports->copyContext = _mesa_copyContext;
-    exports->forceCurrent = _mesa_forceCurrent;
-    exports->notifyResize = _mesa_notifyResize;
-    exports->notifyDestroy = _mesa_notifyDestroy;
-    exports->notifySwapBuffers = _mesa_notifySwapBuffers;
-    exports->dispatchExec = _mesa_dispatchExec;
-    exports->beginDispatchOverride = _mesa_beginDispatchOverride;
-    exports->endDispatchOverride = _mesa_endDispatchOverride;
-#else
-    (void) exports;
-#endif
-}
-
-/**
- * Exported OpenGL SI interface.
- */
-__GLcontext *
-__glCoreCreateContext(__GLimports *imports, __GLcontextModes *modes)
-{
-    GLcontext *ctx;
-
-    ctx = (GLcontext *) (*imports->calloc)(NULL, 1, sizeof(GLcontext));
-    if (ctx == NULL) {
-	return NULL;
-    }
-
-    /* XXX doesn't work at this time */
-    _mesa_initialize_context(ctx, modes, NULL, NULL, NULL);
-    ctx->imports = *imports;
-
-    return ctx;
-}
-
-/**
- * Exported OpenGL SI interface.
- */
-void
-__glCoreNopDispatch(void)
-{
-#if 0
-   /* SI */
-   __gl_dispatch = __glNopDispatchState;
-#else
-   /* Mesa */
-   _glapi_set_dispatch(NULL);
-#endif
-}
-
-/*@}*/
-
-
-/**********************************************************************/
-/** \name GL Visual allocation/destruction                            */
-/**********************************************************************/
-/*@{*/
-
-/**
- * Allocates a GLvisual structure and initializes it via
- * _mesa_initialize_visual().
- * 
- * \param rgbFlag GL_TRUE for RGB(A) mode, GL_FALSE for Color Index mode.
- * \param dbFlag double buffering
- * \param stereoFlag stereo buffer
- * \param depthBits requested bits per depth buffer value. Any value in [0, 32]
- * is acceptable but the actual depth type will be GLushort or GLuint as
- * needed.
- * \param stencilBits requested minimum bits per stencil buffer value
- * \param accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits number of bits per color component in accum buffer.
- * \param indexBits number of bits per pixel if \p rgbFlag is GL_FALSE
- * \param redBits number of bits per color component in frame buffer for RGB(A)
- * mode.  We always use 8 in core Mesa though.
- * \param greenBits same as above.
- * \param blueBits same as above.
- * \param alphaBits same as above.
- * \param numSamples not really used.
- * 
- * \return pointer to new GLvisual or NULL if requested parameters can't be
- * met.
- *
- * \note Need to add params for level and numAuxBuffers (at least)
- */
-GLvisual *
-_mesa_create_visual( GLboolean rgbFlag,
-                     GLboolean dbFlag,
-                     GLboolean stereoFlag,
-                     GLint redBits,
-                     GLint greenBits,
-                     GLint blueBits,
-                     GLint alphaBits,
-                     GLint indexBits,
-                     GLint depthBits,
-                     GLint stencilBits,
-                     GLint accumRedBits,
-                     GLint accumGreenBits,
-                     GLint accumBlueBits,
-                     GLint accumAlphaBits,
-                     GLint numSamples )
-{
-   GLvisual *vis = (GLvisual *) CALLOC( sizeof(GLvisual) );
-   if (vis) {
-      if (!_mesa_initialize_visual(vis, rgbFlag, dbFlag, stereoFlag,
-                                   redBits, greenBits, blueBits, alphaBits,
-                                   indexBits, depthBits, stencilBits,
-                                   accumRedBits, accumGreenBits,
-                                   accumBlueBits, accumAlphaBits,
-                                   numSamples)) {
-         FREE(vis);
-         return NULL;
-      }
-   }
-   return vis;
-}
-
-/**
- * Makes some sanity checks and fills in the fields of the
- * GLvisual object with the given parameters.  If the caller needs
- * to set additional fields, he should just probably init the whole GLvisual
- * object himself.
- * \return GL_TRUE on success, or GL_FALSE on failure.
- *
- * \sa _mesa_create_visual() above for the parameter description.
- */
-GLboolean
-_mesa_initialize_visual( GLvisual *vis,
-                         GLboolean rgbFlag,
-                         GLboolean dbFlag,
-                         GLboolean stereoFlag,
-                         GLint redBits,
-                         GLint greenBits,
-                         GLint blueBits,
-                         GLint alphaBits,
-                         GLint indexBits,
-                         GLint depthBits,
-                         GLint stencilBits,
-                         GLint accumRedBits,
-                         GLint accumGreenBits,
-                         GLint accumBlueBits,
-                         GLint accumAlphaBits,
-                         GLint numSamples )
-{
-   assert(vis);
-
-   if (depthBits < 0 || depthBits > 32) {
-      return GL_FALSE;
-   }
-   if (stencilBits < 0 || stencilBits > STENCIL_BITS) {
-      return GL_FALSE;
-   }
-   if (accumRedBits < 0 || accumRedBits > ACCUM_BITS) {
-      return GL_FALSE;
-   }
-   if (accumGreenBits < 0 || accumGreenBits > ACCUM_BITS) {
-      return GL_FALSE;
-   }
-   if (accumBlueBits < 0 || accumBlueBits > ACCUM_BITS) {
-      return GL_FALSE;
-   }
-   if (accumAlphaBits < 0 || accumAlphaBits > ACCUM_BITS) {
-      return GL_FALSE;
-   }
-
-   vis->rgbMode          = rgbFlag;
-   vis->doubleBufferMode = dbFlag;
-   vis->stereoMode       = stereoFlag;
-
-   vis->redBits          = redBits;
-   vis->greenBits        = greenBits;
-   vis->blueBits         = blueBits;
-   vis->alphaBits        = alphaBits;
-   vis->rgbBits          = redBits + greenBits + blueBits;
-
-   vis->indexBits      = indexBits;
-   vis->depthBits      = depthBits;
-   vis->stencilBits    = stencilBits;
-
-   vis->accumRedBits   = accumRedBits;
-   vis->accumGreenBits = accumGreenBits;
-   vis->accumBlueBits  = accumBlueBits;
-   vis->accumAlphaBits = accumAlphaBits;
-
-   vis->haveAccumBuffer   = accumRedBits > 0;
-   vis->haveDepthBuffer   = depthBits > 0;
-   vis->haveStencilBuffer = stencilBits > 0;
-
-   vis->numAuxBuffers = 0;
-   vis->level = 0;
-   vis->pixmapMode = 0;
-   vis->sampleBuffers = numSamples > 0 ? 1 : 0;
-   vis->samples = numSamples;
-
-   return GL_TRUE;
-}
-
-
-/**
- * Destroy a visual and free its memory.
- *
- * \param vis visual.
- * 
- * Frees the visual structure.
- */
-void
-_mesa_destroy_visual( GLvisual *vis )
-{
-   FREE(vis);
-}
-
-/*@}*/
-
-
-/**********************************************************************/
-/** \name Context allocation, initialization, destroying
- *
- * The purpose of the most initialization functions here is to provide the
- * default state values according to the OpenGL specification.
- */
-/**********************************************************************/
-/*@{*/
-
-/**
- * One-time initialization mutex lock.
- *
- * \sa Used by one_time_init().
- */
-_glthread_DECLARE_STATIC_MUTEX(OneTimeLock);
-
-/**
- * Calls all the various one-time-init functions in Mesa.
- *
- * While holding a global mutex lock, calls several initialization functions,
- * and sets the glapi callbacks if the \c MESA_DEBUG environment variable is
- * defined.
- *
- * \sa _mesa_init_lists(), _math_init().
- */
-static void
-one_time_init( GLcontext *ctx )
-{
-   static GLboolean alreadyCalled = GL_FALSE;
-   (void) ctx;
-   _glthread_LOCK_MUTEX(OneTimeLock);
-   if (!alreadyCalled) {
-      GLuint i;
-
-      /* do some implementation tests */
-      assert( sizeof(GLbyte) == 1 );
-      assert( sizeof(GLubyte) == 1 );
-      assert( sizeof(GLshort) == 2 );
-      assert( sizeof(GLushort) == 2 );
-      assert( sizeof(GLint) == 4 );
-      assert( sizeof(GLuint) == 4 );
-
-      _mesa_init_lists();
-
-#if _HAVE_FULL_GL
-      _math_init();
-
-      for (i = 0; i < 256; i++) {
-         _mesa_ubyte_to_float_color_tab[i] = (float) i / 255.0F;
-      }
-#endif
-
-#ifdef USE_SPARC_ASM
-      _mesa_init_sparc_glapi_relocs();
-#endif
-      if (_mesa_getenv("MESA_DEBUG")) {
-         _glapi_noop_enable_warnings(GL_TRUE);
-         _glapi_set_warning_func( (_glapi_warning_func) _mesa_warning );
-      }
-      else {
-         _glapi_noop_enable_warnings(GL_FALSE);
-      }
-
-#if defined(DEBUG) && defined(__DATE__) && defined(__TIME__)
-      _mesa_debug(ctx, "Mesa %s DEBUG build %s %s\n",
-                  MESA_VERSION_STRING, __DATE__, __TIME__);
-#endif
-
-      alreadyCalled = GL_TRUE;
-   }
-   _glthread_UNLOCK_MUTEX(OneTimeLock);
-}
-
-
-/**
- * Allocate and initialize a shared context state structure.
- * Initializes the display list, texture objects and vertex programs hash
- * tables, allocates the texture objects. If it runs out of memory, frees
- * everything already allocated before returning NULL.
- *
- * \return pointer to a gl_shared_state structure on success, or NULL on
- * failure.
- */
-static GLboolean
-alloc_shared_state( GLcontext *ctx )
-{
-   struct gl_shared_state *ss = CALLOC_STRUCT(gl_shared_state);
-   if (!ss)
-      return GL_FALSE;
-
-   ctx->Shared = ss;
-
-   _glthread_INIT_MUTEX(ss->Mutex);
-
-   ss->DisplayList = _mesa_NewHashTable();
-   ss->TexObjects = _mesa_NewHashTable();
-#if FEATURE_NV_vertex_program || FEATURE_NV_fragment_program
-   ss->Programs = _mesa_NewHashTable();
-#endif
-
-#if FEATURE_ARB_vertex_program
-   ss->DefaultVertexProgram = ctx->Driver.NewProgram(ctx, GL_VERTEX_PROGRAM_ARB, 0);
-   if (!ss->DefaultVertexProgram)
-      goto cleanup;
-#endif
-#if FEATURE_ARB_fragment_program
-   ss->DefaultFragmentProgram = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
-   if (!ss->DefaultFragmentProgram)
-      goto cleanup;
-#endif
-#if FEATURE_ATI_fragment_shader
-   ss->DefaultFragmentShader = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_SHADER_ATI, 0);
-   if (!ss->DefaultFragmentShader)
-      goto cleanup;
-#endif
-
-   ss->BufferObjects = _mesa_NewHashTable();
-
-   ss->GL2Objects = _mesa_NewHashTable ();
-
-   ss->Default1D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_1D);
-   if (!ss->Default1D)
-      goto cleanup;
-
-   ss->Default2D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_2D);
-   if (!ss->Default2D)
-      goto cleanup;
-
-   ss->Default3D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_3D);
-   if (!ss->Default3D)
-      goto cleanup;
-
-   ss->DefaultCubeMap = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_CUBE_MAP_ARB);
-   if (!ss->DefaultCubeMap)
-      goto cleanup;
-
-   ss->DefaultRect = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_RECTANGLE_NV);
-   if (!ss->DefaultRect)
-      goto cleanup;
-
-   /* Effectively bind the default textures to all texture units */
-   ss->Default1D->RefCount += MAX_TEXTURE_IMAGE_UNITS;
-   ss->Default2D->RefCount += MAX_TEXTURE_IMAGE_UNITS;
-   ss->Default3D->RefCount += MAX_TEXTURE_IMAGE_UNITS;
-   ss->DefaultCubeMap->RefCount += MAX_TEXTURE_IMAGE_UNITS;
-   ss->DefaultRect->RefCount += MAX_TEXTURE_IMAGE_UNITS;
-
-#if FEATURE_EXT_framebuffer_object
-   ss->FrameBuffers = _mesa_NewHashTable();
-   if (!ss->FrameBuffers)
-      goto cleanup;
-   ss->RenderBuffers = _mesa_NewHashTable();
-   if (!ss->RenderBuffers)
-      goto cleanup;
-#endif
-
-
-   return GL_TRUE;
-
- cleanup:
-   /* Ran out of memory at some point.  Free everything and return NULL */
-   if (ss->DisplayList)
-      _mesa_DeleteHashTable(ss->DisplayList);
-   if (ss->TexObjects)
-      _mesa_DeleteHashTable(ss->TexObjects);
-#if FEATURE_NV_vertex_program
-   if (ss->Programs)
-      _mesa_DeleteHashTable(ss->Programs);
-#endif
-#if FEATURE_ARB_vertex_program
-   if (ss->DefaultVertexProgram)
-      ctx->Driver.DeleteProgram(ctx, ss->DefaultVertexProgram);
-#endif
-#if FEATURE_ARB_fragment_program
-   if (ss->DefaultFragmentProgram)
-      ctx->Driver.DeleteProgram(ctx, ss->DefaultFragmentProgram);
-#endif
-#if FEATURE_ATI_fragment_shader
-   if (ss->DefaultFragmentShader)
-      ctx->Driver.DeleteProgram(ctx, ss->DefaultFragmentShader);
-#endif
-#if FEATURE_ARB_vertex_buffer_object
-   if (ss->BufferObjects)
-      _mesa_DeleteHashTable(ss->BufferObjects);
-#endif
-
-   if (ss->GL2Objects)
-      _mesa_DeleteHashTable (ss->GL2Objects);
-
-#if FEATURE_EXT_framebuffer_object
-   if (ss->FrameBuffers)
-      _mesa_DeleteHashTable(ss->FrameBuffers);
-   if (ss->RenderBuffers)
-      _mesa_DeleteHashTable(ss->RenderBuffers);
-#endif
-
-   if (ss->Default1D)
-      (*ctx->Driver.DeleteTexture)(ctx, ss->Default1D);
-   if (ss->Default2D)
-      (*ctx->Driver.DeleteTexture)(ctx, ss->Default2D);
-   if (ss->Default3D)
-      (*ctx->Driver.DeleteTexture)(ctx, ss->Default3D);
-   if (ss->DefaultCubeMap)
-      (*ctx->Driver.DeleteTexture)(ctx, ss->DefaultCubeMap);
-   if (ss->DefaultRect)
-      (*ctx->Driver.DeleteTexture)(ctx, ss->DefaultRect);
-   if (ss)
-      _mesa_free(ss);
-   return GL_FALSE;
-}
-
-/**
- * Deallocate a shared state context and all children structures.
- *
- * \param ctx GL context.
- * \param ss shared state pointer.
- * 
- * Frees the display lists, the texture objects (calling the driver texture
- * deletion callback to free its private data) and the vertex programs, as well
- * as their hash tables.
- *
- * \sa alloc_shared_state().
- */
-static void
-free_shared_state( GLcontext *ctx, struct gl_shared_state *ss )
-{
-   /* Free display lists */
-   while (1) {
-      GLuint list = _mesa_HashFirstEntry(ss->DisplayList);
-      if (list) {
-         _mesa_destroy_list(ctx, list);
-      }
-      else {
-         break;
-      }
-   }
-   _mesa_DeleteHashTable(ss->DisplayList);
-
-   /* Free texture objects */
-   ASSERT(ctx->Driver.DeleteTexture);
-   /* the default textures */
-   (*ctx->Driver.DeleteTexture)(ctx, ss->Default1D);
-   (*ctx->Driver.DeleteTexture)(ctx, ss->Default2D);
-   (*ctx->Driver.DeleteTexture)(ctx, ss->Default3D);
-   (*ctx->Driver.DeleteTexture)(ctx, ss->DefaultCubeMap);
-   (*ctx->Driver.DeleteTexture)(ctx, ss->DefaultRect);
-   /* all other textures */
-   while (1) {
-      GLuint texName = _mesa_HashFirstEntry(ss->TexObjects);
-      if (texName) {
-         struct gl_texture_object *texObj = (struct gl_texture_object *)
-            _mesa_HashLookup(ss->TexObjects, texName);
-         ASSERT(texObj);
-         (*ctx->Driver.DeleteTexture)(ctx, texObj);
-         _mesa_HashRemove(ss->TexObjects, texName);
-      }
-      else {
-         break;
-      }
-   }
-   _mesa_DeleteHashTable(ss->TexObjects);
-
-#if FEATURE_NV_vertex_program
-   /* Free vertex programs */
-   while (1) {
-      GLuint prog = _mesa_HashFirstEntry(ss->Programs);
-      if (prog) {
-         struct program *p = (struct program *) _mesa_HashLookup(ss->Programs,
-                                                                 prog);
-         ASSERT(p);
-         ctx->Driver.DeleteProgram(ctx, p);
-         _mesa_HashRemove(ss->Programs, prog);
-      }
-      else {
-         break;
-      }
-   }
-   _mesa_DeleteHashTable(ss->Programs);
-#endif
-#if FEATURE_ARB_vertex_program
-   _mesa_delete_program(ctx, ss->DefaultVertexProgram);
-#endif
-#if FEATURE_ARB_fragment_program
-   _mesa_delete_program(ctx, ss->DefaultFragmentProgram);
-#endif
-#if FEATURE_ATI_fragment_shader
-   _mesa_delete_program(ctx, ss->DefaultFragmentShader);
-#endif
-
-#if FEATURE_ARB_vertex_buffer_object
-   _mesa_DeleteHashTable(ss->BufferObjects);
-#endif
-
-   _mesa_DeleteHashTable (ss->GL2Objects);
-
-#if FEATURE_EXT_framebuffer_object
-   _mesa_DeleteHashTable(ss->FrameBuffers);
-   _mesa_DeleteHashTable(ss->RenderBuffers);
-#endif
-
-   _glthread_DESTROY_MUTEX(ss->Mutex);
-
-   FREE(ss);
-}
-
-
-/**
- * Initialize fields of gl_current_attrib (aka ctx->Current.*)
- */
-static void
-_mesa_init_current( GLcontext *ctx )
-{
-   GLuint i;
-
-   /* Current group */
-   for (i = 0; i < VERT_ATTRIB_MAX; i++) {
-      ASSIGN_4V( ctx->Current.Attrib[i], 0.0, 0.0, 0.0, 1.0 );
-   }
-   /* special cases: */
-   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_WEIGHT], 1.0, 0.0, 0.0, 1.0 );
-   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_NORMAL], 0.0, 0.0, 1.0, 1.0 );
-   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR0], 1.0, 1.0, 1.0, 1.0 );
-   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR1], 0.0, 0.0, 0.0, 1.0 );
-   ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_FOG], 0.0, 0.0, 0.0, 0.0 );
-
-   ctx->Current.Index = 1;
-   ctx->Current.EdgeFlag = GL_TRUE;
-}
-
-
-/**
- * Initialize fields of gl_constants (aka ctx->Const.*).
- * Use defaults from config.h.  The device drivers will often override
- * some of these values (such as number of texture units).
- */
-static void 
-_mesa_init_constants( GLcontext *ctx )
-{
-   assert(ctx);
-
-   assert(MAX_TEXTURE_LEVELS >= MAX_3D_TEXTURE_LEVELS);
-   assert(MAX_TEXTURE_LEVELS >= MAX_CUBE_TEXTURE_LEVELS);
-
-   /* Constants, may be overriden (usually only reduced) by device drivers */
-   ctx->Const.MaxTextureLevels = MAX_TEXTURE_LEVELS;
-   ctx->Const.Max3DTextureLevels = MAX_3D_TEXTURE_LEVELS;
-   ctx->Const.MaxCubeTextureLevels = MAX_CUBE_TEXTURE_LEVELS;
-   ctx->Const.MaxTextureRectSize = MAX_TEXTURE_RECT_SIZE;
-   ctx->Const.MaxTextureUnits = MAX_TEXTURE_UNITS;
-   ctx->Const.MaxTextureCoordUnits = MAX_TEXTURE_COORD_UNITS;
-   ctx->Const.MaxTextureImageUnits = MAX_TEXTURE_IMAGE_UNITS;
-   ctx->Const.MaxTextureMaxAnisotropy = MAX_TEXTURE_MAX_ANISOTROPY;
-   ctx->Const.MaxTextureLodBias = MAX_TEXTURE_LOD_BIAS;
-   ctx->Const.MaxArrayLockSize = MAX_ARRAY_LOCK_SIZE;
-   ctx->Const.SubPixelBits = SUB_PIXEL_BITS;
-   ctx->Const.MinPointSize = MIN_POINT_SIZE;
-   ctx->Const.MaxPointSize = MAX_POINT_SIZE;
-   ctx->Const.MinPointSizeAA = MIN_POINT_SIZE;
-   ctx->Const.MaxPointSizeAA = MAX_POINT_SIZE;
-   ctx->Const.PointSizeGranularity = (GLfloat) POINT_SIZE_GRANULARITY;
-   ctx->Const.MinLineWidth = MIN_LINE_WIDTH;
-   ctx->Const.MaxLineWidth = MAX_LINE_WIDTH;
-   ctx->Const.MinLineWidthAA = MIN_LINE_WIDTH;
-   ctx->Const.MaxLineWidthAA = MAX_LINE_WIDTH;
-   ctx->Const.LineWidthGranularity = (GLfloat) LINE_WIDTH_GRANULARITY;
-   ctx->Const.MaxColorTableSize = MAX_COLOR_TABLE_SIZE;
-   ctx->Const.MaxConvolutionWidth = MAX_CONVOLUTION_WIDTH;
-   ctx->Const.MaxConvolutionHeight = MAX_CONVOLUTION_HEIGHT;
-   ctx->Const.MaxClipPlanes = MAX_CLIP_PLANES;
-   ctx->Const.MaxLights = MAX_LIGHTS;
-   ctx->Const.MaxShininess = 128.0;
-   ctx->Const.MaxSpotExponent = 128.0;
-   ctx->Const.MaxViewportWidth = MAX_WIDTH;
-   ctx->Const.MaxViewportHeight = MAX_HEIGHT;
-#if FEATURE_ARB_vertex_program
-   ctx->Const.MaxVertexProgramInstructions = MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS;
-   ctx->Const.MaxVertexProgramAttribs = MAX_NV_VERTEX_PROGRAM_INPUTS;
-   ctx->Const.MaxVertexProgramTemps = MAX_NV_VERTEX_PROGRAM_TEMPS;
-   ctx->Const.MaxVertexProgramLocalParams = MAX_NV_VERTEX_PROGRAM_PARAMS;
-   ctx->Const.MaxVertexProgramEnvParams = MAX_NV_VERTEX_PROGRAM_PARAMS;/*XXX*/
-   ctx->Const.MaxVertexProgramAddressRegs = MAX_VERTEX_PROGRAM_ADDRESS_REGS;
-#endif
-#if FEATURE_ARB_fragment_program
-   ctx->Const.MaxFragmentProgramInstructions = MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS;
-   ctx->Const.MaxFragmentProgramAttribs = MAX_NV_FRAGMENT_PROGRAM_INPUTS;
-   ctx->Const.MaxFragmentProgramTemps = MAX_NV_FRAGMENT_PROGRAM_TEMPS;
-   ctx->Const.MaxFragmentProgramLocalParams = MAX_NV_FRAGMENT_PROGRAM_PARAMS;
-   ctx->Const.MaxFragmentProgramEnvParams = MAX_NV_FRAGMENT_PROGRAM_PARAMS;/*XXX*/
-   ctx->Const.MaxFragmentProgramAddressRegs = MAX_FRAGMENT_PROGRAM_ADDRESS_REGS;
-   ctx->Const.MaxFragmentProgramAluInstructions = MAX_FRAGMENT_PROGRAM_ALU_INSTRUCTIONS;
-   ctx->Const.MaxFragmentProgramTexInstructions = MAX_FRAGMENT_PROGRAM_TEX_INSTRUCTIONS;
-   ctx->Const.MaxFragmentProgramTexIndirections = MAX_FRAGMENT_PROGRAM_TEX_INDIRECTIONS;
-#endif
-
-   ctx->Const.MaxProgramMatrices = MAX_PROGRAM_MATRICES;
-   ctx->Const.MaxProgramMatrixStackDepth = MAX_PROGRAM_MATRIX_STACK_DEPTH;
-
-   /* If we're running in the X server, do bounds checking to prevent
-    * segfaults and server crashes!
-    */
-#if defined(XFree86LOADER) && defined(IN_MODULE)
-   ctx->Const.CheckArrayBounds = GL_TRUE;
-#else
-   ctx->Const.CheckArrayBounds = GL_FALSE;
-#endif
-
-   ctx->Const.MaxDrawBuffers = MAX_DRAW_BUFFERS;
-
-   /* GL_OES_read_format */
-   ctx->Const.ColorReadFormat = GL_RGBA;
-   ctx->Const.ColorReadType = GL_UNSIGNED_BYTE;
-
-#if FEATURE_EXT_framebuffer_object
-   ctx->Const.MaxColorAttachments = MAX_COLOR_ATTACHMENTS;
-   ctx->Const.MaxRenderbufferSize = MAX_WIDTH;
-#endif
-
-   /* sanity checks */
-   ASSERT(ctx->Const.MaxTextureUnits == MAX2(ctx->Const.MaxTextureImageUnits, ctx->Const.MaxTextureCoordUnits));
-}
-
-
-/**
- * Initialize the attribute groups in a GL context.
- *
- * \param ctx GL context.
- *
- * Initializes all the attributes, calling the respective <tt>init*</tt>
- * functions for the more complex data structures.
- */
-static GLboolean
-init_attrib_groups( GLcontext *ctx )
-{
-   assert(ctx);
-
-   /* Constants */
-   _mesa_init_constants( ctx );
-
-   /* Extensions */
-   _mesa_init_extensions( ctx );
-
-   /* Attribute Groups */
-   _mesa_init_accum( ctx );
-   _mesa_init_attrib( ctx );
-   _mesa_init_buffer_objects( ctx );
-   _mesa_init_color( ctx );
-   _mesa_init_colortables( ctx );
-   _mesa_init_current( ctx );
-   _mesa_init_depth( ctx );
-   _mesa_init_debug( ctx );
-   _mesa_init_display_list( ctx );
-   _mesa_init_eval( ctx );
-   _mesa_init_feedback( ctx );
-   _mesa_init_fog( ctx );
-   _mesa_init_histogram( ctx );
-   _mesa_init_hint( ctx );
-   _mesa_init_line( ctx );
-   _mesa_init_lighting( ctx );
-   _mesa_init_matrix( ctx );
-   _mesa_init_multisample( ctx );
-   _mesa_init_occlude( ctx );
-   _mesa_init_pixel( ctx );
-   _mesa_init_point( ctx );
-   _mesa_init_polygon( ctx );
-   _mesa_init_program( ctx );
-   _mesa_init_rastpos( ctx );
-   _mesa_init_scissor( ctx );
-   _mesa_init_shaderobjects (ctx);
-   _mesa_init_stencil( ctx );
-   _mesa_init_transform( ctx );
-   _mesa_init_varray( ctx );
-   _mesa_init_viewport( ctx );
-
-   if (!_mesa_init_texture( ctx ))
-      return GL_FALSE;
-
-   _mesa_init_texture_s3tc( ctx );
-   _mesa_init_texture_fxt1( ctx );
-
-   /* Miscellaneous */
-   ctx->NewState = _NEW_ALL;
-   ctx->ErrorValue = (GLenum) GL_NO_ERROR;
-   ctx->_Facing = 0;
-#if CHAN_TYPE == GL_FLOAT
-   ctx->ClampFragmentColors = GL_FALSE; /* XXX temporary */
-#else
-   ctx->ClampFragmentColors = GL_TRUE;
-#endif
-   ctx->ClampVertexColors = GL_TRUE;
-
-   return GL_TRUE;
-}
-
-
-/**
- * This is the default function we plug into all dispatch table slots
- * This helps prevents a segfault when someone calls a GL function without
- * first checking if the extension's supported.
- */
-static int
-generic_nop(void)
-{
-   _mesa_problem(NULL, "User called no-op dispatch function (an unsupported extension function?)");
-   return 0;
-}
-
-
-/**
- * Allocate and initialize a new dispatch table.
- */
-static struct _glapi_table *
-alloc_dispatch_table(void)
-{
-   /* Find the larger of Mesa's dispatch table and libGL's dispatch table.
-    * In practice, this'll be the same for stand-alone Mesa.  But for DRI
-    * Mesa we do this to accomodate different versions of libGL and various
-    * DRI drivers.
-    */
-   GLint numEntries = MAX2(_glapi_get_dispatch_table_size(),
-                           sizeof(struct _glapi_table) / sizeof(_glapi_proc));
-   struct _glapi_table *table =
-      (struct _glapi_table *) _mesa_malloc(numEntries * sizeof(_glapi_proc));
-   if (table) {
-      _glapi_proc *entry = (_glapi_proc *) table;
-      GLint i;
-      for (i = 0; i < numEntries; i++) {
-         entry[i] = (_glapi_proc) generic_nop;
-      }
-   }
-   return table;
-}
-
-
-/**
- * Initialize a GLcontext struct (rendering context).
- *
- * This includes allocating all the other structs and arrays which hang off of
- * the context by pointers.
- * Note that the driver needs to pass in its dd_function_table here since
- * we need to at least call driverFunctions->NewTextureObject to create the
- * default texture objects.
- * 
- * Called by _mesa_create_context().
- *
- * Performs the imports and exports callback tables initialization, and
- * miscellaneous one-time initializations. If no shared context is supplied one
- * is allocated, and increase its reference count.  Setups the GL API dispatch
- * tables.  Initialize the TNL module. Sets the maximum Z buffer depth.
- * Finally queries the \c MESA_DEBUG and \c MESA_VERBOSE environment variables
- * for debug flags.
- *
- * \param ctx the context to initialize
- * \param visual describes the visual attributes for this context
- * \param share_list points to context to share textures, display lists,
- *        etc with, or NULL
- * \param driverFunctions table of device driver functions for this context
- *        to use
- * \param driverContext pointer to driver-specific context data
- */
-GLboolean
-_mesa_initialize_context( GLcontext *ctx,
-                          const GLvisual *visual,
-                          GLcontext *share_list,
-                          const struct dd_function_table *driverFunctions,
-                          void *driverContext )
-{
-   ASSERT(driverContext);
-   assert(driverFunctions->NewTextureObject);
-   assert(driverFunctions->FreeTexImageData);
-
-   /* If the driver wants core Mesa to use special imports, it'll have to
-    * override these defaults.
-    */
-   _mesa_init_default_imports( &(ctx->imports), driverContext );
-
-   /* initialize the exports (Mesa functions called by the window system) */
-   _mesa_init_default_exports( &(ctx->exports) );
-
-   /* misc one-time initializations */
-   one_time_init(ctx);
-
-   ctx->Visual = *visual;
-   ctx->DrawBuffer = NULL;
-   ctx->ReadBuffer = NULL;
-   ctx->WinSysDrawBuffer = NULL;
-   ctx->WinSysReadBuffer = NULL;
-
-   /* Plug in driver functions and context pointer here.
-    * This is important because when we call alloc_shared_state() below
-    * we'll call ctx->Driver.NewTextureObject() to create the default
-    * textures.
-    */
-   ctx->Driver = *driverFunctions;
-   ctx->DriverCtx = driverContext;
-
-   if (share_list) {
-      /* share state with another context */
-      ctx->Shared = share_list->Shared;
-   }
-   else {
-      /* allocate new, unshared state */
-      if (!alloc_shared_state( ctx )) {
-         return GL_FALSE;
-      }
-   }
-   _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
-   ctx->Shared->RefCount++;
-   _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
-
-   if (!init_attrib_groups( ctx )) {
-      free_shared_state(ctx, ctx->Shared);
-      return GL_FALSE;
-   }
-
-   /* setup the API dispatch tables */
-   ctx->Exec = alloc_dispatch_table();
-   ctx->Save = alloc_dispatch_table();
-   if (!ctx->Exec || !ctx->Save) {
-      free_shared_state(ctx, ctx->Shared);
-      if (ctx->Exec)
-         _mesa_free(ctx->Exec);
-   }
-   _mesa_init_exec_table(ctx->Exec);
-   ctx->CurrentDispatch = ctx->Exec;
-#if _HAVE_FULL_GL
-   _mesa_init_dlist_table(ctx->Save);
-   _mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt );
-   /* Neutral tnl module stuff */
-   _mesa_init_exec_vtxfmt( ctx ); 
-   ctx->TnlModule.Current = NULL;
-   ctx->TnlModule.SwapCount = 0;
-#endif
-
-   ctx->_MaintainTexEnvProgram = (_mesa_getenv("MESA_TEX_PROG") != NULL);
-   ctx->_MaintainTnlProgram = (_mesa_getenv("MESA_TNL_PROG") != NULL);
-
-   return GL_TRUE;
-}
-
-
-/**
- * Allocate and initialize a GLcontext structure.
- * Note that the driver needs to pass in its dd_function_table here since
- * we need to at least call driverFunctions->NewTextureObject to initialize
- * the rendering context.
- *
- * \param visual a GLvisual pointer (we copy the struct contents)
- * \param share_list another context to share display lists with or NULL
- * \param driverFunctions points to the dd_function_table into which the
- *        driver has plugged in all its special functions.
- * \param driverCtx points to the device driver's private context state
- * 
- * \return pointer to a new __GLcontextRec or NULL if error.
- */
-GLcontext *
-_mesa_create_context( const GLvisual *visual,
-                      GLcontext *share_list,
-                      const struct dd_function_table *driverFunctions,
-                      void *driverContext )
-
-{
-   GLcontext *ctx;
-
-   ASSERT(visual);
-   ASSERT(driverContext);
-
-   ctx = (GLcontext *) _mesa_calloc(sizeof(GLcontext));
-   if (!ctx)
-      return NULL;
-
-   if (_mesa_initialize_context(ctx, visual, share_list,
-                                driverFunctions, driverContext)) {
-      return ctx;
-   }
-   else {
-      _mesa_free(ctx);
-      return NULL;
-   }
-}
-
-
-/**
- * Free the data associated with the given context.
- * 
- * But doesn't free the GLcontext struct itself.
- *
- * \sa _mesa_initialize_context() and init_attrib_groups().
- */
-void
-_mesa_free_context_data( GLcontext *ctx )
-{
-   /* if we're destroying the current context, unbind it first */
-   if (ctx == _mesa_get_current_context()) {
-      _mesa_make_current(NULL, NULL, NULL);
-   }
-
-   _mesa_free_lighting_data( ctx );
-   _mesa_free_eval_data( ctx );
-   _mesa_free_texture_data( ctx );
-   _mesa_free_matrix_data( ctx );
-   _mesa_free_viewport_data( ctx );
-   _mesa_free_colortables_data( ctx );
-   _mesa_free_program_data(ctx);
-   _mesa_free_occlude_data(ctx);
-
-#if FEATURE_ARB_vertex_buffer_object
-   _mesa_delete_buffer_object(ctx, ctx->Array.NullBufferObj);
-#endif
-
-   /* free dispatch tables */
-   _mesa_free(ctx->Exec);
-   _mesa_free(ctx->Save);
-
-   /* Shared context state (display lists, textures, etc) */
-   _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
-   ctx->Shared->RefCount--;
-   assert(ctx->Shared->RefCount >= 0);
-   _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
-   if (ctx->Shared->RefCount == 0) {
-      /* free shared state */
-      free_shared_state( ctx, ctx->Shared );
-   }
-
-   if (ctx->Extensions.String)
-      FREE((void *) ctx->Extensions.String);
-}
-
-
-/**
- * Destroy a GLcontext structure.
- *
- * \param ctx GL context.
- * 
- * Calls _mesa_free_context_data() and frees the GLcontext structure itself.
- */
-void
-_mesa_destroy_context( GLcontext *ctx )
-{
-   if (ctx) {
-      _mesa_free_context_data(ctx);
-      FREE( (void *) ctx );
-   }
-}
-
-
-#if _HAVE_FULL_GL
-/**
- * Copy attribute groups from one context to another.
- * 
- * \param src source context
- * \param dst destination context
- * \param mask bitwise OR of GL_*_BIT flags
- *
- * According to the bits specified in \p mask, copies the corresponding
- * attributes from \p src into \p dst.  For many of the attributes a simple \c
- * memcpy is not enough due to the existence of internal pointers in their data
- * structures.
- */
-void
-_mesa_copy_context( const GLcontext *src, GLcontext *dst, GLuint mask )
-{
-   if (mask & GL_ACCUM_BUFFER_BIT) {
-      /* OK to memcpy */
-      dst->Accum = src->Accum;
-   }
-   if (mask & GL_COLOR_BUFFER_BIT) {
-      /* OK to memcpy */
-      dst->Color = src->Color;
-   }
-   if (mask & GL_CURRENT_BIT) {
-      /* OK to memcpy */
-      dst->Current = src->Current;
-   }
-   if (mask & GL_DEPTH_BUFFER_BIT) {
-      /* OK to memcpy */
-      dst->Depth = src->Depth;
-   }
-   if (mask & GL_ENABLE_BIT) {
-      /* no op */
-   }
-   if (mask & GL_EVAL_BIT) {
-      /* OK to memcpy */
-      dst->Eval = src->Eval;
-   }
-   if (mask & GL_FOG_BIT) {
-      /* OK to memcpy */
-      dst->Fog = src->Fog;
-   }
-   if (mask & GL_HINT_BIT) {
-      /* OK to memcpy */
-      dst->Hint = src->Hint;
-   }
-   if (mask & GL_LIGHTING_BIT) {
-      GLuint i;
-      /* begin with memcpy */
-      MEMCPY( &dst->Light, &src->Light, sizeof(struct gl_light) );
-      /* fixup linked lists to prevent pointer insanity */
-      make_empty_list( &(dst->Light.EnabledList) );
-      for (i = 0; i < MAX_LIGHTS; i++) {
-         if (dst->Light.Light[i].Enabled) {
-            insert_at_tail(&(dst->Light.EnabledList), &(dst->Light.Light[i]));
-         }
-      }
-   }
-   if (mask & GL_LINE_BIT) {
-      /* OK to memcpy */
-      dst->Line = src->Line;
-   }
-   if (mask & GL_LIST_BIT) {
-      /* OK to memcpy */
-      dst->List = src->List;
-   }
-   if (mask & GL_PIXEL_MODE_BIT) {
-      /* OK to memcpy */
-      dst->Pixel = src->Pixel;
-   }
-   if (mask & GL_POINT_BIT) {
-      /* OK to memcpy */
-      dst->Point = src->Point;
-   }
-   if (mask & GL_POLYGON_BIT) {
-      /* OK to memcpy */
-      dst->Polygon = src->Polygon;
-   }
-   if (mask & GL_POLYGON_STIPPLE_BIT) {
-      /* Use loop instead of MEMCPY due to problem with Portland Group's
-       * C compiler.  Reported by John Stone.
-       */
-      GLuint i;
-      for (i = 0; i < 32; i++) {
-         dst->PolygonStipple[i] = src->PolygonStipple[i];
-      }
-   }
-   if (mask & GL_SCISSOR_BIT) {
-      /* OK to memcpy */
-      dst->Scissor = src->Scissor;
-   }
-   if (mask & GL_STENCIL_BUFFER_BIT) {
-      /* OK to memcpy */
-      dst->Stencil = src->Stencil;
-   }
-   if (mask & GL_TEXTURE_BIT) {
-      /* Cannot memcpy because of pointers */
-      _mesa_copy_texture_state(src, dst);
-   }
-   if (mask & GL_TRANSFORM_BIT) {
-      /* OK to memcpy */
-      dst->Transform = src->Transform;
-   }
-   if (mask & GL_VIEWPORT_BIT) {
-      /* Cannot use memcpy, because of pointers in GLmatrix _WindowMap */
-      dst->Viewport.X = src->Viewport.X;
-      dst->Viewport.Y = src->Viewport.Y;
-      dst->Viewport.Width = src->Viewport.Width;
-      dst->Viewport.Height = src->Viewport.Height;
-      dst->Viewport.Near = src->Viewport.Near;
-      dst->Viewport.Far = src->Viewport.Far;
-      _math_matrix_copy(&dst->Viewport._WindowMap, &src->Viewport._WindowMap);
-   }
-
-   /* XXX FIXME:  Call callbacks?
-    */
-   dst->NewState = _NEW_ALL;
-}
-#endif
-
-
-/**
- * Check if the given context can render into the given framebuffer
- * by checking visual attributes.
- * \return GL_TRUE if compatible, GL_FALSE otherwise.
- */
-static GLboolean 
-check_compatible(const GLcontext *ctx, const GLframebuffer *buffer)
-{
-   const GLvisual *ctxvis = &ctx->Visual;
-   const GLvisual *bufvis = &buffer->Visual;
-
-   if (ctxvis == bufvis)
-      return GL_TRUE;
-
-   if (ctxvis->rgbMode != bufvis->rgbMode)
-      return GL_FALSE;
-   if (ctxvis->doubleBufferMode && !bufvis->doubleBufferMode)
-      return GL_FALSE;
-   if (ctxvis->stereoMode && !bufvis->stereoMode)
-      return GL_FALSE;
-   if (ctxvis->haveAccumBuffer && !bufvis->haveAccumBuffer)
-      return GL_FALSE;
-   if (ctxvis->haveDepthBuffer && !bufvis->haveDepthBuffer)
-      return GL_FALSE;
-   if (ctxvis->haveStencilBuffer && !bufvis->haveStencilBuffer)
-      return GL_FALSE;
-   if (ctxvis->redMask && ctxvis->redMask != bufvis->redMask)
-      return GL_FALSE;
-   if (ctxvis->greenMask && ctxvis->greenMask != bufvis->greenMask)
-      return GL_FALSE;
-   if (ctxvis->blueMask && ctxvis->blueMask != bufvis->blueMask)
-      return GL_FALSE;
-   if (ctxvis->depthBits && ctxvis->depthBits != bufvis->depthBits)
-      return GL_FALSE;
-   if (ctxvis->stencilBits && ctxvis->stencilBits != bufvis->stencilBits)
-      return GL_FALSE;
-
-   return GL_TRUE;
-}
-
-
-/**
- * Bind the given context to the given draw-buffer and read-buffer and
- * make it the current context for this thread.
- *
- * \param newCtx new GL context. If NULL then there will be no current GL
- * context.
- * \param drawBuffer draw framebuffer.
- * \param readBuffer read framebuffer.
- * 
- * Check that the context's and framebuffer's visuals are compatible, returning
- * immediately otherwise. Sets the glapi current context via
- * _glapi_set_context(). If \p newCtx is not NULL, associates \p drawBuffer and
- * \p readBuffer with it and calls dd_function_table::ResizeBuffers if the buffers size has changed. 
- * Calls dd_function_table::MakeCurrent callback if defined.
- *
- * When a context is bound by the first time and the \c MESA_INFO environment
- * variable is set it calls print_info() as an aid for remote user
- * troubleshooting.
- */
-void
-_mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer,
-                    GLframebuffer *readBuffer )
-{
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(newCtx, "_mesa_make_current()\n");
-
-   /* Check that the context's and framebuffer's visuals are compatible.
-    */
-   if (newCtx && drawBuffer && newCtx->DrawBuffer != drawBuffer) {
-      if (!check_compatible(newCtx, drawBuffer))
-         return;
-   }
-   if (newCtx && readBuffer && newCtx->ReadBuffer != readBuffer) {
-      if (!check_compatible(newCtx, readBuffer))
-         return;
-   }
-
-#if !defined(IN_DRI_DRIVER)
-   /* We call this function periodically (just here for now) in
-    * order to detect when multithreading has begun.  In a DRI driver, this
-    * step is done by the driver loader (e.g., libGL).
-    */
-   _glapi_check_multithread();
-#endif /* !defined(IN_DRI_DRIVER) */
-
-   _glapi_set_context((void *) newCtx);
-   ASSERT(_mesa_get_current_context() == newCtx);
-
-   if (!newCtx) {
-      _glapi_set_dispatch(NULL);  /* none current */
-   }
-   else {
-      _glapi_set_dispatch(newCtx->CurrentDispatch);
-
-      if (drawBuffer && readBuffer) {
-	 /* TODO: check if newCtx and buffer's visual match??? */
-
-         ASSERT(drawBuffer->Name == 0);
-         ASSERT(readBuffer->Name == 0);
-         newCtx->WinSysDrawBuffer = drawBuffer;
-         newCtx->WinSysReadBuffer = readBuffer;
-         /* don't replace user-buffer bindings with window system buffer */
-         if (!newCtx->DrawBuffer || newCtx->DrawBuffer->Name == 0) {
-            newCtx->DrawBuffer = drawBuffer;
-            newCtx->ReadBuffer = readBuffer;
-         }
-
-	 newCtx->NewState |= _NEW_BUFFERS;
-
-#if _HAVE_FULL_GL
-         if (!drawBuffer->Initialized) {
-            /* get initial window size */
-            GLuint bufWidth, bufHeight;
-            /* ask device driver for size of the buffer */
-            (*newCtx->Driver.GetBufferSize)(drawBuffer, &bufWidth, &bufHeight);
-            /* set initial buffer size */
-            if (newCtx->Driver.ResizeBuffers)
-               newCtx->Driver.ResizeBuffers(newCtx, drawBuffer,
-                                            bufWidth, bufHeight);
-            drawBuffer->Initialized = GL_TRUE;
-         }
-
-         if (readBuffer != drawBuffer && !readBuffer->Initialized) {
-            /* get initial window size */
-            GLuint bufWidth, bufHeight;
-            /* ask device driver for size of the buffer */
-            (*newCtx->Driver.GetBufferSize)(readBuffer, &bufWidth, &bufHeight);
-            /* set initial buffer size */
-            if (newCtx->Driver.ResizeBuffers)
-               newCtx->Driver.ResizeBuffers(newCtx, readBuffer,
-                                            bufWidth, bufHeight);
-            readBuffer->Initialized = GL_TRUE;
-         }
-#endif
-         if (newCtx->FirstTimeCurrent) {
-            /* set initial viewport and scissor size now */
-            _mesa_set_viewport(newCtx, 0, 0, drawBuffer->Width, drawBuffer->Height);
-            newCtx->Scissor.Width = drawBuffer->Width;
-            newCtx->Scissor.Height = drawBuffer->Height;
-         }
-      }
-
-      /* Alert the driver - usually passed on to the sw t&l module,
-       * but also used to detect threaded cases in the radeon codegen
-       * hw t&l module.
-       */
-      if (newCtx->Driver.MakeCurrent)
-	 newCtx->Driver.MakeCurrent( newCtx, drawBuffer, readBuffer );
-
-      /* We can use this to help debug user's problems.  Tell them to set
-       * the MESA_INFO env variable before running their app.  Then the
-       * first time each context is made current we'll print some useful
-       * information.
-       */
-      if (newCtx->FirstTimeCurrent) {
-	 if (_mesa_getenv("MESA_INFO")) {
-	    _mesa_print_info();
-	 }
-	 newCtx->FirstTimeCurrent = GL_FALSE;
-      }
-   }
-}
-
-
-/**
- * Make context 'ctx' share the display lists, textures and programs
- * that are associated with 'ctxToShare'.
- * Any display lists, textures or programs associated with 'ctx' will
- * be deleted if nobody else is sharing them.
- */
-GLboolean
-_mesa_share_state(GLcontext *ctx, GLcontext *ctxToShare)
-{
-   if (ctx && ctxToShare && ctx->Shared && ctxToShare->Shared) {
-      ctx->Shared->RefCount--;
-      if (ctx->Shared->RefCount == 0) {
-         free_shared_state(ctx, ctx->Shared);
-      }
-      ctx->Shared = ctxToShare->Shared;
-      ctx->Shared->RefCount++;
-      return GL_TRUE;
-   }
-   else {
-      return GL_FALSE;
-   }
-}
-
-
-
-/**
- * Get current context for the calling thread.
- * 
- * \return pointer to the current GL context.
- * 
- * Calls _glapi_get_context(). This isn't the fastest way to get the current
- * context.  If you need speed, see the #GET_CURRENT_CONTEXT macro in context.h.
- */
-GLcontext *
-_mesa_get_current_context( void )
-{
-   return (GLcontext *) _glapi_get_context();
-}
-
-/**
- * Get context's current API dispatch table.
- *
- * It'll either be the immediate-mode execute dispatcher or the display list
- * compile dispatcher.
- * 
- * \param ctx GL context.
- *
- * \return pointer to dispatch_table.
- *
- * Simply returns __GLcontextRec::CurrentDispatch.
- */
-struct _glapi_table *
-_mesa_get_dispatch(GLcontext *ctx)
-{
-   return ctx->CurrentDispatch;
-}
-
-/*@}*/
-
-
-/**********************************************************************/
-/** \name Miscellaneous functions                                     */
-/**********************************************************************/
-/*@{*/
-
-/**
- * Record an error.
- *
- * \param ctx GL context.
- * \param error error code.
- * 
- * Records the given error code and call the driver's dd_function_table::Error
- * function if defined.
- *
- * \sa
- * This is called via _mesa_error().
- */
-void
-_mesa_record_error( GLcontext *ctx, GLenum error )
-{
-   if (!ctx)
-      return;
-
-   if (ctx->ErrorValue == GL_NO_ERROR) {
-      ctx->ErrorValue = error;
-   }
-
-   /* Call device driver's error handler, if any.  This is used on the Mac. */
-   if (ctx->Driver.Error) {
-      (*ctx->Driver.Error)( ctx );
-   }
-}
-
-/**
- * Execute glFinish().
- *
- * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the
- * dd_function_table::Finish driver callback, if not NULL.
- */
-void GLAPIENTRY
-_mesa_Finish( void )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-   if (ctx->Driver.Finish) {
-      (*ctx->Driver.Finish)( ctx );
-   }
-}
-
-/**
- * Execute glFlush().
- *
- * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the
- * dd_function_table::Flush driver callback, if not NULL.
- */
-void GLAPIENTRY
-_mesa_Flush( void )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-   if (ctx->Driver.Flush) {
-      (*ctx->Driver.Flush)( ctx );
-   }
-}
-
-
-/*@}*/