st_draw.c revision b7c646d1bcf4b6fa285996d1b9b660ce478190f6 
1/**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 /*
29  * Authors:
30  *   Keith Whitwell <keith@tungstengraphics.com>
31  */
32
33#include "imports.h"
34
35#include "tnl/t_context.h"
36#include "tnl/t_pipeline.h"
37
38#include "st_context.h"
39#include "st_atom.h"
40#include "st_draw.h"
41#include "pipe/p_context.h"
42
43/*
44 * TNL stage which feeds into the above.
45 *
46 * XXX: this needs to go into each driver using this code, because we
47 * cannot make the leap from ctx->draw_context in this file.  The
48 * driver needs to customize tnl anyway, so this isn't a big deal.
49 */
50static GLboolean draw( GLcontext * ctx, struct tnl_pipeline_stage *stage )
51{
52   struct st_context *st = st_context(ctx);
53   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
54
55   /* Validate driver and pipe state:
56    */
57   st_validate_state( st );
58
59   /* Call into the new draw code to handle the VB:
60    */
61   st->pipe->draw_vb( st->pipe, VB );
62
63   /* Finished
64    */
65   return GL_FALSE;
66}
67
68const struct tnl_pipeline_stage st_draw = {
69   "check state and draw",
70   NULL,
71   NULL,
72   NULL,
73   NULL,
74   draw
75};
76
77static const struct tnl_pipeline_stage *intel_pipeline[] = {
78   &_tnl_vertex_transform_stage,
79   &_tnl_vertex_cull_stage,
80   &_tnl_normal_transform_stage,
81   &_tnl_lighting_stage,
82   &_tnl_fog_coordinate_stage,
83   &_tnl_texgen_stage,
84   &_tnl_texture_transform_stage,
85   &_tnl_point_attenuation_stage,
86   &_tnl_vertex_program_stage,
87   &st_draw,     /* ADD: escape to pipe */
88   0,
89};
90
91/* This is all a hack to keep using tnl until we have vertex programs
92 * up and running.
93 */
94void st_init_draw( struct st_context *st )
95{
96   GLcontext *ctx = st->ctx;
97
98   _tnl_destroy_pipeline( ctx );
99   _tnl_install_pipeline( ctx, intel_pipeline );
100}
101
102
103void st_destroy_draw( struct st_context *st )
104{
105   /* Nothing to do.
106    */
107}
108
109
110/** XXX temporary here */
111void
112st_clear(struct st_context *st, GLboolean color, GLboolean depth,
113         GLboolean stencil, GLboolean accum)
114{
115   /* Validate driver and pipe state:
116    */
117   st_validate_state( st );
118
119   st->pipe->clear(st->pipe, color, depth, stencil, accum);
120}
121
122