C++ TNL_CONTEXT函数代码示例

static void viaRenderClippedLine(struct gl_context *ctx, GLuint ii, GLuint jj)
{
    TNLcontext *tnl = TNL_CONTEXT(ctx);
    tnl->Driver.Render.Line(ctx, ii, jj);
}

/* Insert the active immediate struct onto the display list currently
 * being built.
 */
static void _save_compile_vertex_list( GLcontext *ctx )
{
   TNLcontext *tnl = TNL_CONTEXT(ctx);
   struct tnl_vertex_list *node;

   /* Allocate space for this structure in the display list currently
    * being compiled.
    */
   node = (struct tnl_vertex_list *)
      _mesa_alloc_instruction(ctx, tnl->save.opcode_vertex_list, sizeof(*node));

   if (!node)
      return;

   /* Duplicate our template, increment refcounts to the storage structs:
    */
   _mesa_memcpy(node->attrsz, tnl->save.attrsz, sizeof(node->attrsz));
   node->vertex_size = tnl->save.vertex_size;
   node->buffer = tnl->save.buffer;
   node->wrap_count = tnl->save.copied.nr;
   node->count = tnl->save.initial_counter - tnl->save.counter;
   node->prim = tnl->save.prim;
   node->prim_count = tnl->save.prim_count;
   node->vertex_store = tnl->save.vertex_store;
   node->prim_store = tnl->save.prim_store;
   node->dangling_attr_ref = tnl->save.dangling_attr_ref;
   node->normal_lengths = 0;

   node->vertex_store->refcount++;
   node->prim_store->refcount++;

   assert(node->attrsz[_TNL_ATTRIB_POS] != 0 ||
	  node->count == 0);

   /* Maybe calculate normal lengths:
    */
   if (tnl->CalcDListNormalLengths && 
       node->attrsz[_TNL_ATTRIB_NORMAL] == 3 &&
       !node->dangling_attr_ref)
      build_normal_lengths( node );

   tnl->save.vertex_store->used += tnl->save.vertex_size * node->count;
   tnl->save.prim_store->used += node->prim_count;

   /* Decide whether the storage structs are full, or can be used for
    * the next vertex lists as well.
    */
   if (tnl->save.vertex_store->used > 
       SAVE_BUFFER_SIZE - 16 * (tnl->save.vertex_size + 4)) {

      tnl->save.vertex_store->refcount--; 
      assert(tnl->save.vertex_store->refcount != 0);
      tnl->save.vertex_store = alloc_vertex_store( ctx );
      tnl->save.vbptr = tnl->save.vertex_store->buffer;
   } 

   if (tnl->save.prim_store->used > SAVE_PRIM_SIZE - 6) {
      tnl->save.prim_store->refcount--; 
      assert(tnl->save.prim_store->refcount != 0);
      tnl->save.prim_store = alloc_prim_store( ctx );
   } 

   /* Reset our structures for the next run of vertices:
    */
   _save_reset_counters( ctx );

   /* Copy duplicated vertices 
    */
   tnl->save.copied.nr = _save_copy_vertices( ctx, node );


   /* Deal with GL_COMPILE_AND_EXECUTE:
    */
   if (ctx->ExecuteFlag) {
      _tnl_playback_vertex_list( ctx, (void *) node );
   }
}

/*
 * NOTE: Old 'parity' issue is gone, but copying can still be
 * wrong-footed on replay.
 */
static GLuint _save_copy_vertices( GLcontext *ctx, 
				   const struct tnl_vertex_list *node )
{
   TNLcontext *tnl = TNL_CONTEXT( ctx );
   const struct tnl_prim *prim = &node->prim[node->prim_count-1];
   GLuint nr = prim->count;
   GLuint sz = tnl->save.vertex_size;
   const GLfloat *src = node->buffer + prim->start * sz;
   GLfloat *dst = tnl->save.copied.buffer;
   GLuint ovf, i;

   if (prim->mode & PRIM_END)
      return 0;
	 
   switch( prim->mode & PRIM_MODE_MASK )
   {
   case GL_POINTS:
      return 0;
   case GL_LINES:
      ovf = nr&1;
      for (i = 0 ; i < ovf ; i++)
	 _mesa_memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz*sizeof(GLfloat) );
      return i;
   case GL_TRIANGLES:
      ovf = nr%3;
      for (i = 0 ; i < ovf ; i++)
	 _mesa_memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz*sizeof(GLfloat) );
      return i;
   case GL_QUADS:
      ovf = nr&3;
      for (i = 0 ; i < ovf ; i++)
	 _mesa_memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz*sizeof(GLfloat) );
      return i;
   case GL_LINE_STRIP:
      if (nr == 0) 
	 return 0;
      else {
	 _mesa_memcpy( dst, src+(nr-1)*sz, sz*sizeof(GLfloat) );
	 return 1;
      }
   case GL_LINE_LOOP:
   case GL_TRIANGLE_FAN:
   case GL_POLYGON:
      if (nr == 0) 
	 return 0;
      else if (nr == 1) {
	 _mesa_memcpy( dst, src+0, sz*sizeof(GLfloat) );
	 return 1;
      } else {
	 _mesa_memcpy( dst, src+0, sz*sizeof(GLfloat) );
	 _mesa_memcpy( dst+sz, src+(nr-1)*sz, sz*sizeof(GLfloat) );
	 return 2;
      }
   case GL_TRIANGLE_STRIP:
   case GL_QUAD_STRIP:
      switch (nr) {
      case 0: ovf = 0; break;
      case 1: ovf = 1; break;
      default: ovf = 2 + (nr&1); break;
      }
      for (i = 0 ; i < ovf ; i++)
	 _mesa_memcpy( dst+i*sz, src+(nr-ovf+i)*sz, sz*sizeof(GLfloat) );
      return i;
   default:
      assert(0);
      return 0;
   }
}

bool
brwCreateContext(int api,
	         const struct gl_config *mesaVis,
		 __DRIcontext *driContextPriv,
                 unsigned major_version,
                 unsigned minor_version,
                 uint32_t flags,
                 unsigned *error,
	         void *sharedContextPrivate)
{
   __DRIscreen *sPriv = driContextPriv->driScreenPriv;
   struct intel_screen *screen = sPriv->driverPrivate;
   struct dd_function_table functions;

   struct brw_context *brw = rzalloc(NULL, struct brw_context);
   if (!brw) {
      printf("%s: failed to alloc context\n", __FUNCTION__);
      *error = __DRI_CTX_ERROR_NO_MEMORY;
      return false;
   }

   /* brwInitVtbl needs to know the chipset generation so that it can set the
    * right pointers.
    */
   brw->gen = screen->gen;

   brwInitVtbl( brw );

   brwInitDriverFunctions(screen, &functions);

   struct gl_context *ctx = &brw->ctx;

   if (!intelInitContext( brw, api, major_version, minor_version,
                          mesaVis, driContextPriv,
			  sharedContextPrivate, &functions,
			  error)) {
      ralloc_free(brw);
      return false;
   }

   brw_initialize_context_constants(brw);

   /* Reinitialize the context point state.  It depends on ctx->Const values. */
   _mesa_init_point(ctx);

   if (brw->gen >= 6) {
      /* Create a new hardware context.  Using a hardware context means that
       * our GPU state will be saved/restored on context switch, allowing us
       * to assume that the GPU is in the same state we left it in.
       *
       * This is required for transform feedback buffer offsets, query objects,
       * and also allows us to reduce how much state we have to emit.
       */
      brw->hw_ctx = drm_intel_gem_context_create(brw->bufmgr);

      if (!brw->hw_ctx) {
         fprintf(stderr, "Gen6+ requires Kernel 3.6 or later.\n");
         ralloc_free(brw);
         return false;
      }
   }

   brw_init_surface_formats(brw);

   /* Initialize swrast, tnl driver tables: */
   TNLcontext *tnl = TNL_CONTEXT(ctx);
   if (tnl)
      tnl->Driver.RunPipeline = _tnl_run_pipeline;

   ctx->DriverFlags.NewTransformFeedback = BRW_NEW_TRANSFORM_FEEDBACK;
   ctx->DriverFlags.NewRasterizerDiscard = BRW_NEW_RASTERIZER_DISCARD;
   ctx->DriverFlags.NewUniformBuffer = BRW_NEW_UNIFORM_BUFFER;

   if (brw->is_g4x || brw->gen >= 5) {
      brw->CMD_VF_STATISTICS = GM45_3DSTATE_VF_STATISTICS;
      brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_GM45;
      brw->has_surface_tile_offset = true;
      if (brw->gen < 6)
	  brw->has_compr4 = true;
      brw->has_aa_line_parameters = true;
      brw->has_pln = true;
  } else {
      brw->CMD_VF_STATISTICS = GEN4_3DSTATE_VF_STATISTICS;
      brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_965;
   }

   /* WM maximum threads is number of EUs times number of threads per EU. */
   assert(brw->gen <= 7);

   if (brw->is_haswell) {
      if (brw->gt == 1) {
	 brw->max_wm_threads = 102;
	 brw->max_vs_threads = 70;
	 brw->urb.size = 128;
	 brw->urb.max_vs_entries = 640;
	 brw->urb.max_gs_entries = 256;
      } else if (brw->gt == 2) {
	 brw->max_wm_threads = 204;
	 brw->max_vs_threads = 280;
	 brw->urb.size = 256;
//.........这里部分代码省略.........

static void _save_vtxfmt_init( GLcontext *ctx )
{
   TNLcontext *tnl = TNL_CONTEXT(ctx);
   GLvertexformat *vfmt = &tnl->save_vtxfmt;

   vfmt->ArrayElement = _ae_loopback_array_elt;	        /* generic helper */
   vfmt->Begin = _save_Begin;
   vfmt->Color3f = _save_Color3f;
   vfmt->Color3fv = _save_Color3fv;
   vfmt->Color4f = _save_Color4f;
   vfmt->Color4fv = _save_Color4fv;
   vfmt->EdgeFlag = _save_EdgeFlag;
   vfmt->EdgeFlagv = _save_EdgeFlagv;
   vfmt->End = _save_End;
   vfmt->FogCoordfEXT = _save_FogCoordfEXT;
   vfmt->FogCoordfvEXT = _save_FogCoordfvEXT;
   vfmt->Indexf = _save_Indexf;
   vfmt->Indexfv = _save_Indexfv;
   vfmt->Materialfv = _save_Materialfv;
   vfmt->MultiTexCoord1fARB = _save_MultiTexCoord1f;
   vfmt->MultiTexCoord1fvARB = _save_MultiTexCoord1fv;
   vfmt->MultiTexCoord2fARB = _save_MultiTexCoord2f;
   vfmt->MultiTexCoord2fvARB = _save_MultiTexCoord2fv;
   vfmt->MultiTexCoord3fARB = _save_MultiTexCoord3f;
   vfmt->MultiTexCoord3fvARB = _save_MultiTexCoord3fv;
   vfmt->MultiTexCoord4fARB = _save_MultiTexCoord4f;
   vfmt->MultiTexCoord4fvARB = _save_MultiTexCoord4fv;
   vfmt->Normal3f = _save_Normal3f;
   vfmt->Normal3fv = _save_Normal3fv;
   vfmt->SecondaryColor3fEXT = _save_SecondaryColor3fEXT;
   vfmt->SecondaryColor3fvEXT = _save_SecondaryColor3fvEXT;
   vfmt->TexCoord1f = _save_TexCoord1f;
   vfmt->TexCoord1fv = _save_TexCoord1fv;
   vfmt->TexCoord2f = _save_TexCoord2f;
   vfmt->TexCoord2fv = _save_TexCoord2fv;
   vfmt->TexCoord3f = _save_TexCoord3f;
   vfmt->TexCoord3fv = _save_TexCoord3fv;
   vfmt->TexCoord4f = _save_TexCoord4f;
   vfmt->TexCoord4fv = _save_TexCoord4fv;
   vfmt->Vertex2f = _save_Vertex2f;
   vfmt->Vertex2fv = _save_Vertex2fv;
   vfmt->Vertex3f = _save_Vertex3f;
   vfmt->Vertex3fv = _save_Vertex3fv;
   vfmt->Vertex4f = _save_Vertex4f;
   vfmt->Vertex4fv = _save_Vertex4fv;
   vfmt->VertexAttrib1fNV = _save_VertexAttrib1fNV;
   vfmt->VertexAttrib1fvNV = _save_VertexAttrib1fvNV;
   vfmt->VertexAttrib2fNV = _save_VertexAttrib2fNV;
   vfmt->VertexAttrib2fvNV = _save_VertexAttrib2fvNV;
   vfmt->VertexAttrib3fNV = _save_VertexAttrib3fNV;
   vfmt->VertexAttrib3fvNV = _save_VertexAttrib3fvNV;
   vfmt->VertexAttrib4fNV = _save_VertexAttrib4fNV;
   vfmt->VertexAttrib4fvNV = _save_VertexAttrib4fvNV;
   vfmt->VertexAttrib1fARB = _save_VertexAttrib1fARB;
   vfmt->VertexAttrib1fvARB = _save_VertexAttrib1fvARB;
   vfmt->VertexAttrib2fARB = _save_VertexAttrib2fARB;
   vfmt->VertexAttrib2fvARB = _save_VertexAttrib2fvARB;
   vfmt->VertexAttrib3fARB = _save_VertexAttrib3fARB;
   vfmt->VertexAttrib3fvARB = _save_VertexAttrib3fvARB;
   vfmt->VertexAttrib4fARB = _save_VertexAttrib4fARB;
   vfmt->VertexAttrib4fvARB = _save_VertexAttrib4fvARB;
   
   /* This will all require us to fallback to saving the list as opcodes:
    */ 
   vfmt->CallList = _save_CallList; /* inside begin/end */
   vfmt->CallLists = _save_CallLists; /* inside begin/end */
   vfmt->EvalCoord1f = _save_EvalCoord1f;
   vfmt->EvalCoord1fv = _save_EvalCoord1fv;
   vfmt->EvalCoord2f = _save_EvalCoord2f;
   vfmt->EvalCoord2fv = _save_EvalCoord2fv;
   vfmt->EvalPoint1 = _save_EvalPoint1;
   vfmt->EvalPoint2 = _save_EvalPoint2;

   /* These are all errors as we at least know we are in some sort of
    * begin/end pair:
    */
   vfmt->EvalMesh1 = _save_EvalMesh1;	
   vfmt->EvalMesh2 = _save_EvalMesh2;
   vfmt->Begin = _save_Begin;
   vfmt->Rectf = _save_Rectf;
   vfmt->DrawArrays = _save_DrawArrays;
   vfmt->DrawElements = _save_DrawElements;
   vfmt->DrawRangeElements = _save_DrawRangeElements;

}

//.........这里部分代码省略.........
      gen4_init_vtable_sampler_functions(brw);
      brw->vtbl.emit_depth_stencil_hiz = brw_emit_depth_stencil_hiz;
   }

   brw_init_driver_functions(brw, &functions);

   if (notify_reset)
      functions.GetGraphicsResetStatus = brw_get_graphics_reset_status;

   struct gl_context *ctx = &brw->ctx;

   if (!_mesa_initialize_context(ctx, api, mesaVis, shareCtx, &functions)) {
      *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY;
      fprintf(stderr, "%s: failed to init mesa context\n", __FUNCTION__);
      intelDestroyContext(driContextPriv);
      return false;
   }

   driContextSetFlags(ctx, flags);

   /* Initialize the software rasterizer and helper modules.
    *
    * As of GL 3.1 core, the gen4+ driver doesn't need the swrast context for
    * software fallbacks (which we have to support on legacy GL to do weird
    * glDrawPixels(), glBitmap(), and other functions).
    */
   if (api != API_OPENGL_CORE && api != API_OPENGLES2) {
      _swrast_CreateContext(ctx);
   }

   _vbo_CreateContext(ctx);
   if (ctx->swrast_context) {
      _tnl_CreateContext(ctx);
      TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
      _swsetup_CreateContext(ctx);

      /* Configure swrast to match hardware characteristics: */
      _swrast_allow_pixel_fog(ctx, false);
      _swrast_allow_vertex_fog(ctx, true);
   }

   _mesa_meta_init(ctx);

   brw_process_driconf_options(brw);
   brw_process_intel_debug_variable(brw);
   brw_initialize_context_constants(brw);

   ctx->Const.ResetStrategy = notify_reset
      ? GL_LOSE_CONTEXT_ON_RESET_ARB : GL_NO_RESET_NOTIFICATION_ARB;

   /* Reinitialize the context point state.  It depends on ctx->Const values. */
   _mesa_init_point(ctx);

   intel_fbo_init(brw);

   intel_batchbuffer_init(brw);

   if (brw->gen >= 6) {
      /* Create a new hardware context.  Using a hardware context means that
       * our GPU state will be saved/restored on context switch, allowing us
       * to assume that the GPU is in the same state we left it in.
       *
       * This is required for transform feedback buffer offsets, query objects,
       * and also allows us to reduce how much state we have to emit.
       */
      brw->hw_ctx = drm_intel_gem_context_create(brw->bufmgr);

static GLboolean run_render( GLcontext *ctx,
			     struct tnl_pipeline_stage *stage )
{
   TNLcontext *tnl = TNL_CONTEXT(ctx);
   struct vertex_buffer *VB = &tnl->vb;
   tnl_render_func *tab;
   GLint pass = 0;

   /* Allow the drivers to lock before projected verts are built so
    * that window coordinates are guarenteed not to change before
    * rendering.
    */
   ASSERT(tnl->Driver.Render.Start);

   tnl->Driver.Render.Start( ctx );

   ASSERT(tnl->Driver.Render.BuildVertices);
   ASSERT(tnl->Driver.Render.PrimitiveNotify);
   ASSERT(tnl->Driver.Render.Points);
   ASSERT(tnl->Driver.Render.Line);
   ASSERT(tnl->Driver.Render.Triangle);
   ASSERT(tnl->Driver.Render.Quad);
   ASSERT(tnl->Driver.Render.ResetLineStipple);
   ASSERT(tnl->Driver.Render.Interp);
   ASSERT(tnl->Driver.Render.CopyPV);
   ASSERT(tnl->Driver.Render.ClippedLine);
   ASSERT(tnl->Driver.Render.ClippedPolygon);
   ASSERT(tnl->Driver.Render.Finish);

   tnl->Driver.Render.BuildVertices( ctx, 0, VB->Count, ~0 );

   if (VB->ClipOrMask) {
      tab = VB->Elts ? clip_render_tab_elts : clip_render_tab_verts;
      clip_render_tab_elts[GL_TRIANGLES] = clip_elt_triangles;
   }
   else {
      tab = (VB->Elts ? 
	     tnl->Driver.Render.PrimTabElts : 
	     tnl->Driver.Render.PrimTabVerts);
   }

   do
   {
      GLuint i;

      for (i = 0 ; i < VB->PrimitiveCount ; i++)
      {
	 GLuint prim = _tnl_translate_prim(&VB->Primitive[i]);
	 GLuint start = VB->Primitive[i].start;
	 GLuint length = VB->Primitive[i].count;

	 assert((prim & PRIM_MODE_MASK) <= GL_POLYGON);

	 if (MESA_VERBOSE & VERBOSE_PRIMS) 
	    _mesa_debug(NULL, "MESA prim %s %d..%d\n", 
			_mesa_lookup_enum_by_nr(prim & PRIM_MODE_MASK), 
			start, start+length);

	 if (length)
	    tab[prim & PRIM_MODE_MASK]( ctx, start, start + length, prim );
      }
   } while (tnl->Driver.Render.Multipass &&
	    tnl->Driver.Render.Multipass( ctx, ++pass ));

   tnl->Driver.Render.Finish( ctx );

   return GL_FALSE;		/* finished the pipe */
}

static GLboolean
dri_create_context(gl_api api,
		   const struct gl_config * visual,
		   __DRIcontext * cPriv, void *sharedContextPrivate)
{
    struct dri_context *ctx = NULL;
    struct dri_context *share = (struct dri_context *)sharedContextPrivate;
    struct gl_context *mesaCtx = NULL;
    struct gl_context *sharedCtx = NULL;
    struct dd_function_table functions;

    TRACE;

    ctx = CALLOC_STRUCT(dri_context);
    if (ctx == NULL)
	goto context_fail;

    cPriv->driverPrivate = ctx;
    ctx->cPriv = cPriv;

    /* build table of device driver functions */
    _mesa_init_driver_functions(&functions);
    swrast_init_driver_functions(&functions);

    if (share) {
	sharedCtx = &share->Base;
    }

    mesaCtx = &ctx->Base;

    /* basic context setup */
    if (!_mesa_initialize_context(mesaCtx, api, visual, sharedCtx, &functions, (void *) cPriv)) {
	goto context_fail;
    }

    /* do bounds checking to prevent segfaults and server crashes! */
    mesaCtx->Const.CheckArrayBounds = GL_TRUE;

    /* create module contexts */
    _swrast_CreateContext( mesaCtx );
    _vbo_CreateContext( mesaCtx );
    _tnl_CreateContext( mesaCtx );
    _swsetup_CreateContext( mesaCtx );
    _swsetup_Wakeup( mesaCtx );

    /* use default TCL pipeline */
    {
       TNLcontext *tnl = TNL_CONTEXT(mesaCtx);
       tnl->Driver.RunPipeline = _tnl_run_pipeline;
    }

    _mesa_meta_init(mesaCtx);
    _mesa_enable_sw_extensions(mesaCtx);

    switch (api) {
    case API_OPENGL:
        _mesa_enable_1_3_extensions(mesaCtx);
        _mesa_enable_1_4_extensions(mesaCtx);
        _mesa_enable_1_5_extensions(mesaCtx);
        _mesa_enable_2_0_extensions(mesaCtx);
        _mesa_enable_2_1_extensions(mesaCtx);
        break;
    case API_OPENGLES:
        _mesa_enable_1_3_extensions(mesaCtx);
        _mesa_enable_1_4_extensions(mesaCtx);
        _mesa_enable_1_5_extensions(mesaCtx);

        break;
    case API_OPENGLES2:
        InitExtensionsES2( mesaCtx);
        break;
    }

    return GL_TRUE;

context_fail:

    FREE(ctx);

    return GL_FALSE;
}

static GLboolean
dri_create_context(gl_api api,
		   const struct gl_config * visual,
		   __DRIcontext * cPriv,
		   unsigned major_version,
		   unsigned minor_version,
		   uint32_t flags,
		   bool notify_reset,
		   unsigned *error,
		   void *sharedContextPrivate)
{
    struct dri_context *ctx = NULL;
    struct dri_context *share = (struct dri_context *)sharedContextPrivate;
    struct gl_context *mesaCtx = NULL;
    struct gl_context *sharedCtx = NULL;
    struct dd_function_table functions;

    TRACE;

    /* Flag filtering is handled in dri2CreateContextAttribs.
     */
    (void) flags;

    ctx = CALLOC_STRUCT(dri_context);
    if (ctx == NULL) {
	*error = __DRI_CTX_ERROR_NO_MEMORY;
	goto context_fail;
    }

    cPriv->driverPrivate = ctx;
    ctx->cPriv = cPriv;

    /* build table of device driver functions */
    _mesa_init_driver_functions(&functions);
    swrast_init_driver_functions(&functions);

    if (share) {
	sharedCtx = &share->Base;
    }

    mesaCtx = &ctx->Base;

    /* basic context setup */
    if (!_mesa_initialize_context(mesaCtx, api, visual, sharedCtx, &functions)) {
	*error = __DRI_CTX_ERROR_NO_MEMORY;
	goto context_fail;
    }

    driContextSetFlags(mesaCtx, flags);

    /* do bounds checking to prevent segfaults and server crashes! */
    mesaCtx->Const.CheckArrayBounds = GL_TRUE;

    /* create module contexts */
    _swrast_CreateContext( mesaCtx );
    _vbo_CreateContext( mesaCtx );
    _tnl_CreateContext( mesaCtx );
    _swsetup_CreateContext( mesaCtx );
    _swsetup_Wakeup( mesaCtx );

    /* use default TCL pipeline */
    {
       TNLcontext *tnl = TNL_CONTEXT(mesaCtx);
       tnl->Driver.RunPipeline = _tnl_run_pipeline;
    }

    _mesa_meta_init(mesaCtx);
    _mesa_enable_sw_extensions(mesaCtx);

    _mesa_compute_version(mesaCtx);

    _mesa_initialize_dispatch_tables(mesaCtx);
    _mesa_initialize_vbo_vtxfmt(mesaCtx);

    *error = __DRI_CTX_ERROR_SUCCESS;
    return GL_TRUE;

context_fail:

    free(ctx);

    return GL_FALSE;
}

static void viaChooseVertexState( struct gl_context *ctx )
{
   struct via_context *vmesa = VIA_CONTEXT(ctx);
   TNLcontext *tnl = TNL_CONTEXT(ctx);
   DECLARE_RENDERINPUTS(index_bitset);
   GLuint regCmdB = HC_HVPMSK_X | HC_HVPMSK_Y | HC_HVPMSK_Z;
   GLuint setupIndex = 0;

   RENDERINPUTS_COPY( index_bitset, tnl->render_inputs_bitset );
   vmesa->vertex_attr_count = 0;
 
   /* EMIT_ATTR's must be in order as they tell t_vertex.c how to
    * build up a hardware vertex.
    */
   if (RENDERINPUTS_TEST_RANGE( index_bitset, _TNL_FIRST_TEX, _TNL_LAST_TEX ) ||
       RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_FOG )) {
      EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, VIA_EMIT_W, HC_HVPMSK_W );
      vmesa->coloroffset = 4;
   }
   else {
      EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_3F_VIEWPORT, 0, 0 );
      vmesa->coloroffset = 3;
   }

   /* t_context.c always includes a diffuse color */
   EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA, VIA_EMIT_RGBA, 
	      HC_HVPMSK_Cd );
      
   vmesa->specoffset = 0;
   if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR1 ) ||
       RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_FOG )) {
      if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR1 )) {
	 vmesa->specoffset = vmesa->coloroffset + 1;
	 EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR, VIA_EMIT_SPEC, 
		    HC_HVPMSK_Cs );
      }
      else
	 EMIT_PAD( 3 );

      if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_FOG ))
	 EMIT_ATTR( _TNL_ATTRIB_FOG, EMIT_1UB_1F, VIA_EMIT_FOG, HC_HVPMSK_Cs );
      else
	 EMIT_PAD( 1 );
   }

   if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_TEX0 )) {
      if (vmesa->ptexHack)
	 EMIT_ATTR( _TNL_ATTRIB_TEX0, EMIT_3F_XYW, VIA_EMIT_PTEX0, 
		    (HC_HVPMSK_S | HC_HVPMSK_T) );
      else 
	 EMIT_ATTR( _TNL_ATTRIB_TEX0, EMIT_2F, VIA_EMIT_TEX0, 
		    (HC_HVPMSK_S | HC_HVPMSK_T) );
   }

   if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_TEX1 )) {
      EMIT_ATTR( _TNL_ATTRIB_TEX1, EMIT_2F, VIA_EMIT_TEX1, 
		 (HC_HVPMSK_S | HC_HVPMSK_T) );
   }

   if (setupIndex != vmesa->setupIndex) {
      vmesa->vertexSize = _tnl_install_attrs( ctx, 
					       vmesa->vertex_attrs, 
					       vmesa->vertex_attr_count,
					       vmesa->ViewportMatrix.m, 0 );
      vmesa->vertexSize >>= 2;
      vmesa->setupIndex = setupIndex;
      vmesa->regCmdB &= ~HC_HVPMSK_MASK;
      vmesa->regCmdB |= regCmdB;

      if (vmesa->ptexHack) 
	 vmesa->hwVertexSize = vmesa->vertexSize - 1;
      else
	 vmesa->hwVertexSize = vmesa->vertexSize;
   }

static void viaChooseRenderState(struct gl_context *ctx)
{
   TNLcontext *tnl = TNL_CONTEXT(ctx);
   struct via_context *vmesa = VIA_CONTEXT(ctx);
   GLuint flags = ctx->_TriangleCaps;
   GLuint index = 0;

   if (vmesa->ptexHack) {
      vmesa->drawPoint = via_ptex_point;
      vmesa->drawLine = via_ptex_line;
      vmesa->drawTri = via_ptex_tri;
      index |= VIA_FALLBACK_BIT;
   }
   else {
      vmesa->drawPoint = via_draw_point;
      vmesa->drawLine = via_draw_line;
      vmesa->drawTri = via_draw_triangle;
   }

   if (flags & (ANY_FALLBACK_FLAGS | ANY_RASTER_FLAGS)) {
      if (ctx->Light.Enabled && ctx->Light.Model.TwoSide)
         index |= VIA_TWOSIDE_BIT;
      if (ctx->Polygon.FrontMode != GL_FILL || ctx->Polygon.BackMode != GL_FILL)
         index |= VIA_UNFILLED_BIT;
      if (flags & DD_TRI_OFFSET)
         index |= VIA_OFFSET_BIT;
      if (flags & ANY_FALLBACK_FLAGS)
         index |= VIA_FALLBACK_BIT;

      /* Hook in fallbacks for specific primitives. */
      if (flags & POINT_FALLBACK)
	 vmesa->drawPoint = via_fallback_point;
      
      if (flags & LINE_FALLBACK)
	 vmesa->drawLine = via_fallback_line;

      if (flags & TRI_FALLBACK)
	 vmesa->drawTri = via_fallback_tri;
   }

   if ((flags & DD_SEPARATE_SPECULAR) && ctx->Light.ShadeModel == GL_FLAT)
      index = VIA_MAX_TRIFUNC;	/* flat specular */

   if (vmesa->renderIndex != index) {
      vmesa->renderIndex = index;

      tnl->Driver.Render.Points = rast_tab[index].points;
      tnl->Driver.Render.Line = rast_tab[index].line;
      tnl->Driver.Render.Triangle = rast_tab[index].triangle;
      tnl->Driver.Render.Quad = rast_tab[index].quad;

      if (index == 0) {
	 tnl->Driver.Render.PrimTabVerts = via_render_tab_verts;
	 tnl->Driver.Render.PrimTabElts = via_render_tab_elts;
	 tnl->Driver.Render.ClippedLine = line; /* from tritmp.h */
	 tnl->Driver.Render.ClippedPolygon = viaFastRenderClippedPoly;
      }
      else {
	 tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
	 tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
	 tnl->Driver.Render.ClippedLine = viaRenderClippedLine;
	 tnl->Driver.Render.ClippedPolygon = viaRenderClippedPoly;
      }
   }
}

GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
			    __DRIcontextPrivate *driContextPriv,
			    void *sharedContextPrivate)
{
   struct dd_function_table functions;
   struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
   struct intel_context *intel = &brw->intel;
   GLcontext *ctx = &intel->ctx;

   if (!brw) {
      _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
      return GL_FALSE;
   }

   brwInitVtbl( brw );
   brwInitDriverFunctions( &functions );

   if (!intelInitContext( intel, mesaVis, driContextPriv,
			  sharedContextPrivate, &functions )) {
      _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
      FREE(brw);
      return GL_FALSE;
   }

   /* Initialize swrast, tnl driver tables: */
   intelInitSpanFuncs(ctx);

   TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;

   ctx->Const.MaxDrawBuffers = BRW_MAX_DRAW_BUFFERS;
   ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
   ctx->Const.MaxTextureCoordUnits = 8; /* Mesa limit */
   ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureCoordUnits,
                                     ctx->Const.MaxTextureImageUnits);
   ctx->Const.MaxVertexTextureImageUnits = 0; /* no vertex shader textures */

   /* Mesa limits textures to 4kx4k; it would be nice to fix that someday
    */
   ctx->Const.MaxTextureLevels = 13;
   ctx->Const.Max3DTextureLevels = 9;
   ctx->Const.MaxCubeTextureLevels = 12;
   ctx->Const.MaxTextureRectSize = (1<<12);
   
   ctx->Const.MaxTextureMaxAnisotropy = 16.0;

   /* if conformance mode is set, swrast can handle any size AA point */
   ctx->Const.MaxPointSizeAA = 255.0;

   /* We want the GLSL compiler to emit code that uses condition codes */
   ctx->Shader.EmitCondCodes = GL_TRUE;
   ctx->Shader.EmitNVTempInitialization = GL_TRUE;

   ctx->Const.VertexProgram.MaxNativeInstructions = (16 * 1024);
   ctx->Const.VertexProgram.MaxAluInstructions = 0;
   ctx->Const.VertexProgram.MaxTexInstructions = 0;
   ctx->Const.VertexProgram.MaxTexIndirections = 0;
   ctx->Const.VertexProgram.MaxNativeAluInstructions = 0;
   ctx->Const.VertexProgram.MaxNativeTexInstructions = 0;
   ctx->Const.VertexProgram.MaxNativeTexIndirections = 0;
   ctx->Const.VertexProgram.MaxNativeAttribs = 16;
   ctx->Const.VertexProgram.MaxNativeTemps = 256;
   ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
   ctx->Const.VertexProgram.MaxNativeParameters = 1024;
   ctx->Const.VertexProgram.MaxEnvParams =
      MIN2(ctx->Const.VertexProgram.MaxNativeParameters,
	   ctx->Const.VertexProgram.MaxEnvParams);

   ctx->Const.FragmentProgram.MaxNativeInstructions = (16 * 1024);
   ctx->Const.FragmentProgram.MaxNativeAluInstructions = (16 * 1024);
   ctx->Const.FragmentProgram.MaxNativeTexInstructions = (16 * 1024);
   ctx->Const.FragmentProgram.MaxNativeTexIndirections = (16 * 1024);
   ctx->Const.FragmentProgram.MaxNativeAttribs = 12;
   ctx->Const.FragmentProgram.MaxNativeTemps = 256;
   ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
   ctx->Const.FragmentProgram.MaxNativeParameters = 1024;
   ctx->Const.FragmentProgram.MaxEnvParams =
      MIN2(ctx->Const.FragmentProgram.MaxNativeParameters,
	   ctx->Const.FragmentProgram.MaxEnvParams);

   brw_init_state( brw );

   brw->state.dirty.mesa = ~0;
   brw->state.dirty.brw = ~0;

   brw->emit_state_always = 0;

   ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
   ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;

   make_empty_list(&brw->query.active_head);

   brw_draw_init( brw );

   return GL_TRUE;
}

//.........这里部分代码省略.........

   /* Can only add ST1 at the time of doing some multitex but can keep
    * it after that.  Errors if DIFFUSE is missing.
    */
   rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] = 
      (RADEON_TCL_VTX_Z0 |
       RADEON_TCL_VTX_W0 |
       RADEON_TCL_VTX_PK_DIFFUSE
	 );	/* need to keep this uptodate */
						   
   rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] =
      ( RADEON_TCL_COMPUTE_XYZW 	|
	(RADEON_TCL_TEX_INPUT_TEX_0 << RADEON_TCL_TEX_0_OUTPUT_SHIFT) |
	(RADEON_TCL_TEX_INPUT_TEX_1 << RADEON_TCL_TEX_1_OUTPUT_SHIFT) |
	(RADEON_TCL_TEX_INPUT_TEX_2 << RADEON_TCL_TEX_2_OUTPUT_SHIFT));


   /* XXX */
   rmesa->hw.tcl.cmd[TCL_MATRIX_SELECT_0] = 
      ((MODEL << RADEON_MODELVIEW_0_SHIFT) |
       (MODEL_IT << RADEON_IT_MODELVIEW_0_SHIFT));

   rmesa->hw.tcl.cmd[TCL_MATRIX_SELECT_1] = 
      ((MODEL_PROJ << RADEON_MODELPROJECT_0_SHIFT) |
       (TEXMAT_0 << RADEON_TEXMAT_0_SHIFT) |
       (TEXMAT_1 << RADEON_TEXMAT_1_SHIFT) |
       (TEXMAT_2 << RADEON_TEXMAT_2_SHIFT));

   rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] = 
      (RADEON_UCP_IN_CLIP_SPACE |
       RADEON_CULL_FRONT_IS_CCW);

   rmesa->hw.tcl.cmd[TCL_TEXTURE_PROC_CTL] = 0; 

   rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] = 
      (RADEON_SPECULAR_LIGHTS |
       RADEON_DIFFUSE_SPECULAR_COMBINE |
       RADEON_LOCAL_LIGHT_VEC_GL |
       (RADEON_LM_SOURCE_STATE_MULT << RADEON_EMISSIVE_SOURCE_SHIFT) |
       (RADEON_LM_SOURCE_STATE_MULT << RADEON_AMBIENT_SOURCE_SHIFT) |
       (RADEON_LM_SOURCE_STATE_MULT << RADEON_DIFFUSE_SOURCE_SHIFT) |
       (RADEON_LM_SOURCE_STATE_MULT << RADEON_SPECULAR_SOURCE_SHIFT));

   for (i = 0 ; i < 8; i++) {
      struct gl_light *l = &ctx->Light.Light[i];
      GLenum p = GL_LIGHT0 + i;
      *(float *)&(rmesa->hw.lit[i].cmd[LIT_RANGE_CUTOFF]) = FLT_MAX;

      ctx->Driver.Lightfv( ctx, p, GL_AMBIENT, l->Ambient );
      ctx->Driver.Lightfv( ctx, p, GL_DIFFUSE, l->Diffuse );
      ctx->Driver.Lightfv( ctx, p, GL_SPECULAR, l->Specular );
      ctx->Driver.Lightfv( ctx, p, GL_POSITION, NULL );
      ctx->Driver.Lightfv( ctx, p, GL_SPOT_DIRECTION, NULL );
      ctx->Driver.Lightfv( ctx, p, GL_SPOT_EXPONENT, &l->SpotExponent );
      ctx->Driver.Lightfv( ctx, p, GL_SPOT_CUTOFF, &l->SpotCutoff );
      ctx->Driver.Lightfv( ctx, p, GL_CONSTANT_ATTENUATION,
			   &l->ConstantAttenuation );
      ctx->Driver.Lightfv( ctx, p, GL_LINEAR_ATTENUATION, 
			   &l->LinearAttenuation );
      ctx->Driver.Lightfv( ctx, p, GL_QUADRATIC_ATTENUATION, 
		     &l->QuadraticAttenuation );
      *(float *)&(rmesa->hw.lit[i].cmd[LIT_ATTEN_XXX]) = 0.0;
   }

   ctx->Driver.LightModelfv( ctx, GL_LIGHT_MODEL_AMBIENT, 
			     ctx->Light.Model.Ambient );

   TNL_CONTEXT(ctx)->Driver.NotifyMaterialChange( ctx );

   for (i = 0 ; i < 6; i++) {
      ctx->Driver.ClipPlane( ctx, GL_CLIP_PLANE0 + i, NULL );
   }

   ctx->Driver.Fogfv( ctx, GL_FOG_MODE, NULL );
   ctx->Driver.Fogfv( ctx, GL_FOG_DENSITY, &ctx->Fog.Density );
   ctx->Driver.Fogfv( ctx, GL_FOG_START, &ctx->Fog.Start );
   ctx->Driver.Fogfv( ctx, GL_FOG_END, &ctx->Fog.End );
   ctx->Driver.Fogfv( ctx, GL_FOG_COLOR, ctx->Fog.Color );
   ctx->Driver.Fogfv( ctx, GL_FOG_COORDINATE_SOURCE_EXT, NULL );
   
   rmesa->hw.grd.cmd[GRD_VERT_GUARD_CLIP_ADJ] = IEEE_ONE;
   rmesa->hw.grd.cmd[GRD_VERT_GUARD_DISCARD_ADJ] = IEEE_ONE;
   rmesa->hw.grd.cmd[GRD_HORZ_GUARD_CLIP_ADJ] = IEEE_ONE;
   rmesa->hw.grd.cmd[GRD_HORZ_GUARD_DISCARD_ADJ] = IEEE_ONE;

   rmesa->hw.eye.cmd[EYE_X] = 0;
   rmesa->hw.eye.cmd[EYE_Y] = 0;
   rmesa->hw.eye.cmd[EYE_Z] = IEEE_ONE;
   rmesa->hw.eye.cmd[EYE_RESCALE_FACTOR] = IEEE_ONE;

   if (rmesa->radeon.radeonScreen->kernel_mm) {
      radeon_init_query_stateobj(&rmesa->radeon, R100_QUERYOBJ_CMDSIZE);
      rmesa->radeon.query.queryobj.cmd[R100_QUERYOBJ_CMD_0] = CP_PACKET0(RADEON_RB3D_ZPASS_DATA, 0);
      rmesa->radeon.query.queryobj.cmd[R100_QUERYOBJ_DATA_0] = 0;
   }
     
   rmesa->radeon.hw.all_dirty = GL_TRUE;

   rcommonInitCmdBuf(&rmesa->radeon);
}

static void texgen( GLcontext *ctx,
		    struct texgen_stage_data *store,
		    GLuint unit )
{
   TNLcontext *tnl = TNL_CONTEXT(ctx);
   struct vertex_buffer *VB = &tnl->vb;
   GLvector4f *in = VB->AttribPtr[VERT_ATTRIB_TEX0 + unit];
   GLvector4f *out = &store->texcoord[unit];
   const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
   const GLvector4f *obj = VB->AttribPtr[_TNL_ATTRIB_POS];
   const GLvector4f *eye = VB->EyePtr;
   const GLvector4f *normal = VB->AttribPtr[_TNL_ATTRIB_NORMAL];
   const GLfloat *m = store->tmp_m;
   const GLuint count = VB->Count;
   GLfloat (*texcoord)[4] = (GLfloat (*)[4])out->data;
   GLfloat (*f)[3] = store->tmp_f;
   GLuint copy;

   if (texUnit->_GenFlags & TEXGEN_NEED_M) {
      build_m_tab[eye->size]( store->tmp_f, store->tmp_m, normal, eye );
   } else if (texUnit->_GenFlags & TEXGEN_NEED_F) {
      build_f_tab[eye->size]( (GLfloat *)store->tmp_f, 3, normal, eye );
   }


   out->size = MAX2(in->size, store->TexgenSize[unit]);
   out->flags |= (in->flags & VEC_SIZE_FLAGS) | texUnit->TexGenEnabled;
   out->count = count;

   copy = (all_bits[in->size] & ~texUnit->TexGenEnabled);
   if (copy)
      _mesa_copy_tab[copy]( out, in );

   if (texUnit->TexGenEnabled & S_BIT) {
      GLuint i;
      switch (texUnit->GenS.Mode) {
      case GL_OBJECT_LINEAR:
	 _mesa_dotprod_tab[obj->size]( (GLfloat *)out->data,
				       sizeof(out->data[0]), obj,
				       texUnit->GenS.ObjectPlane );
	 break;
      case GL_EYE_LINEAR:
	 _mesa_dotprod_tab[eye->size]( (GLfloat *)out->data,
				       sizeof(out->data[0]), eye,
				       texUnit->GenS.EyePlane );
	 break;
      case GL_SPHERE_MAP:
         for (i = 0; i < count; i++)
            texcoord[i][0] = f[i][0] * m[i] + 0.5F;
	 break;
      case GL_REFLECTION_MAP_NV:
	 for (i=0;i<count;i++)
	     texcoord[i][0] = f[i][0];
	 break;
      case GL_NORMAL_MAP_NV: {
	 const GLfloat *norm = normal->start;
	 for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) {
	     texcoord[i][0] = norm[0];
	 }
	 break;
      }
      default:
	 _mesa_problem(ctx, "Bad S texgen");
      }
   }

   if (texUnit->TexGenEnabled & T_BIT) {
      GLuint i;
      switch (texUnit->GenT.Mode) {
      case GL_OBJECT_LINEAR:
	 _mesa_dotprod_tab[obj->size]( &(out->data[0][1]),
				       sizeof(out->data[0]), obj,
				       texUnit->GenT.ObjectPlane );
	 break;
      case GL_EYE_LINEAR:
	 _mesa_dotprod_tab[eye->size]( &(out->data[0][1]),
				       sizeof(out->data[0]), eye,
				       texUnit->GenT.EyePlane );
	 break;
      case GL_SPHERE_MAP:
         for (i = 0; i < count; i++)
            texcoord[i][1] = f[i][1] * m[i] + 0.5F;
	 break;
      case GL_REFLECTION_MAP_NV:
	 for (i=0;i<count;i++)
	     texcoord[i][1] = f[i][1];
	 break;
      case GL_NORMAL_MAP_NV: {
	 const GLfloat *norm = normal->start;
	 for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) {
	     texcoord[i][1] = norm[1];
	 }
	 break;
      }
      default:
	 _mesa_problem(ctx, "Bad T texgen");
      }
   }

   if (texUnit->TexGenEnabled & R_BIT) {
//.........这里部分代码省略.........

/**
 * Tell the tnl module how to build SWvertex objects for swrast.
 * We'll build the map[] array with that info and pass it to
 * _tnl_install_attrs().
 */
static void
setup_vertex_format(GLcontext *ctx)
{
   TNLcontext *tnl = TNL_CONTEXT(ctx);
   SScontext *swsetup = SWSETUP_CONTEXT(ctx);
   GLboolean intColors = !ctx->FragmentProgram._Current
                      && !ctx->ATIFragmentShader._Enabled
                      && ctx->RenderMode == GL_RENDER
                      && CHAN_TYPE != GL_FLOAT;

   if (intColors != swsetup->intColors ||
       !RENDERINPUTS_EQUAL(tnl->render_inputs_bitset,
                           swsetup->last_index_bitset)) {
      DECLARE_RENDERINPUTS(index_bitset);
      struct tnl_attr_map map[_TNL_ATTRIB_MAX];
      unsigned int i, e = 0;

      swsetup->intColors = intColors;

      RENDERINPUTS_COPY( index_bitset, tnl->render_inputs_bitset );

      EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, attrib[FRAG_ATTRIB_WPOS] );

      if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR0 )) {
         if (swsetup->intColors)
            EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4CHAN_4F_RGBA, color );
         else
            EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4F, attrib[FRAG_ATTRIB_COL0]);
      }

      if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR1 )) {
         EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_4F, attrib[FRAG_ATTRIB_COL1]);
      }

      if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_FOG )) {
         const GLint emit = ctx->FragmentProgram._Current ? EMIT_4F : EMIT_1F;
         EMIT_ATTR( _TNL_ATTRIB_FOG, emit, attrib[FRAG_ATTRIB_FOGC]);
      }

      if (RENDERINPUTS_TEST_RANGE(index_bitset, _TNL_FIRST_TEX, _TNL_LAST_TEX))
      {
         for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
            if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_TEX(i) )) {
               EMIT_ATTR( _TNL_ATTRIB_TEX(i), EMIT_4F,
                          attrib[FRAG_ATTRIB_TEX0 + i] );
            }
         }
      }

      /* shader varying vars */
      if (RENDERINPUTS_TEST_RANGE( index_bitset,
                                   _TNL_FIRST_GENERIC, _TNL_LAST_GENERIC )) {
         for (i = 0; i < ctx->Const.MaxVarying; i++) {
            if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_GENERIC(i) )) {
               EMIT_ATTR( _TNL_ATTRIB_GENERIC(i), VARYING_EMIT_STYLE,
                          attrib[FRAG_ATTRIB_VAR0 + i] );
            }
         }
      }

      if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_POINTSIZE ))
         EMIT_ATTR( _TNL_ATTRIB_POINTSIZE, EMIT_1F, pointSize );

      _tnl_install_attrs( ctx, map, e,
                          ctx->Viewport._WindowMap.m,
                          sizeof(SWvertex) );

      RENDERINPUTS_COPY( swsetup->last_index_bitset, index_bitset );
   }
}