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/* Authors:  Keith Whitwell <keith@tungstengraphics.com>
29 */
30
31
32#include "sp_context.h"
33#include "sp_state.h"
34
35#include "util/u_memory.h"
36#include "util/u_inlines.h"
37#include "util/u_transfer.h"
38#include "draw/draw_context.h"
39
40
41static void *
42softpipe_create_vertex_elements_state(struct pipe_context *pipe,
43                                      unsigned count,
44                                      const struct pipe_vertex_element *attribs)
45{
46   struct sp_velems_state *velems;
47   assert(count <= PIPE_MAX_ATTRIBS);
48   velems = (struct sp_velems_state *) MALLOC(sizeof(struct sp_velems_state));
49   if (velems) {
50      velems->count = count;
51      memcpy(velems->velem, attribs, sizeof(*attribs) * count);
52   }
53   return velems;
54}
55
56
57static void
58softpipe_bind_vertex_elements_state(struct pipe_context *pipe,
59                                    void *velems)
60{
61   struct softpipe_context *softpipe = softpipe_context(pipe);
62   struct sp_velems_state *sp_velems = (struct sp_velems_state *) velems;
63
64   softpipe->velems = sp_velems;
65
66   softpipe->dirty |= SP_NEW_VERTEX;
67
68   if (sp_velems)
69      draw_set_vertex_elements(softpipe->draw, sp_velems->count, sp_velems->velem);
70}
71
72
73static void
74softpipe_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
75{
76   FREE( velems );
77}
78
79
80static void
81softpipe_set_vertex_buffers(struct pipe_context *pipe,
82                            unsigned count,
83                            const struct pipe_vertex_buffer *buffers)
84{
85   struct softpipe_context *softpipe = softpipe_context(pipe);
86
87   assert(count <= PIPE_MAX_ATTRIBS);
88
89   util_copy_vertex_buffers(softpipe->vertex_buffer,
90                            &softpipe->num_vertex_buffers,
91                            buffers, count);
92
93   softpipe->dirty |= SP_NEW_VERTEX;
94
95   draw_set_vertex_buffers(softpipe->draw, count, buffers);
96}
97
98
99static void
100softpipe_set_index_buffer(struct pipe_context *pipe,
101                          const struct pipe_index_buffer *ib)
102{
103   struct softpipe_context *softpipe = softpipe_context(pipe);
104
105   if (ib)
106      memcpy(&softpipe->index_buffer, ib, sizeof(softpipe->index_buffer));
107   else
108      memset(&softpipe->index_buffer, 0, sizeof(softpipe->index_buffer));
109}
110
111
112void
113softpipe_init_vertex_funcs(struct pipe_context *pipe)
114{
115   pipe->create_vertex_elements_state = softpipe_create_vertex_elements_state;
116   pipe->bind_vertex_elements_state = softpipe_bind_vertex_elements_state;
117   pipe->delete_vertex_elements_state = softpipe_delete_vertex_elements_state;
118
119   pipe->set_vertex_buffers = softpipe_set_vertex_buffers;
120   pipe->set_index_buffer = softpipe_set_index_buffer;
121}
122