t_vp_build.c revision c1f859d4 
1/*
2 * Mesa 3-D graphics library
3 * Version:  7.1
4 *
5 * Copyright (C) 2007  Tungsten Graphics   All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * TUNGSTEN GRAPHICS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26/**
27 * \file t_vp_build.c
28 * Create a vertex program to execute the current fixed function T&L pipeline.
29 * \author Keith Whitwell
30 */
31
32
33#include "main/glheader.h"
34#include "main/ffvertex_prog.h"
35#include "t_vp_build.h"
36
37
38/**
39 * XXX This should go away someday, but still referenced by some drivers...
40 */
41void _tnl_UpdateFixedFunctionProgram( GLcontext *ctx )
42{
43   const struct gl_vertex_program *prev = ctx->VertexProgram._Current;
44
45   if (!ctx->VertexProgram._Current ||
46       ctx->VertexProgram._Current == ctx->VertexProgram._TnlProgram) {
47      ctx->VertexProgram._Current
48         = ctx->VertexProgram._TnlProgram
49         = _mesa_get_fixed_func_vertex_program(ctx);
50   }
51
52   /* Tell the driver about the change.  Could define a new target for
53    * this?
54    */
55   if (ctx->VertexProgram._Current != prev && ctx->Driver.BindProgram) {
56      ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,
57                            (struct gl_program *) ctx->VertexProgram._Current);
58   }
59}
60