1/**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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 <keithw@vmware.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_helpers.h"
37#include "util/u_inlines.h"
38#include "util/u_transfer.h"
39#include "draw/draw_context.h"
40
41
42static void *
43softpipe_create_vertex_elements_state(struct pipe_context *pipe,
44                                      unsigned count,
45                                      const struct pipe_vertex_element *attribs)
46{
47   struct sp_velems_state *velems;
48   assert(count <= PIPE_MAX_ATTRIBS);
49   velems = (struct sp_velems_state *) MALLOC(sizeof(struct sp_velems_state));
50   if (velems) {
51      velems->count = count;
52      memcpy(velems->velem, attribs, sizeof(*attribs) * count);
53   }
54   return velems;
55}
56
57
58static void
59softpipe_bind_vertex_elements_state(struct pipe_context *pipe,
60                                    void *velems)
61{
62   struct softpipe_context *softpipe = softpipe_context(pipe);
63   struct sp_velems_state *sp_velems = (struct sp_velems_state *) velems;
64
65   softpipe->velems = sp_velems;
66
67   softpipe->dirty |= SP_NEW_VERTEX;
68
69   if (sp_velems)
70      draw_set_vertex_elements(softpipe->draw, sp_velems->count, sp_velems->velem);
71}
72
73
74static void
75softpipe_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
76{
77   FREE( velems );
78}
79
80
81static void
82softpipe_set_vertex_buffers(struct pipe_context *pipe,
83                            unsigned start_slot, unsigned count,
84                            const struct pipe_vertex_buffer *buffers)
85{
86   struct softpipe_context *softpipe = softpipe_context(pipe);
87
88   assert(count <= PIPE_MAX_ATTRIBS);
89
90   util_set_vertex_buffers_count(softpipe->vertex_buffer,
91                                 &softpipe->num_vertex_buffers,
92                                 buffers, start_slot, count);
93
94   softpipe->dirty |= SP_NEW_VERTEX;
95
96   draw_set_vertex_buffers(softpipe->draw, start_slot, count, buffers);
97}
98
99
100static void
101softpipe_set_index_buffer(struct pipe_context *pipe,
102                          const struct pipe_index_buffer *ib)
103{
104   struct softpipe_context *softpipe = softpipe_context(pipe);
105
106   if (ib)
107      memcpy(&softpipe->index_buffer, ib, sizeof(softpipe->index_buffer));
108   else
109      memset(&softpipe->index_buffer, 0, sizeof(softpipe->index_buffer));
110}
111
112
113void
114softpipe_init_vertex_funcs(struct pipe_context *pipe)
115{
116   pipe->create_vertex_elements_state = softpipe_create_vertex_elements_state;
117   pipe->bind_vertex_elements_state = softpipe_bind_vertex_elements_state;
118   pipe->delete_vertex_elements_state = softpipe_delete_vertex_elements_state;
119
120   pipe->set_vertex_buffers = softpipe_set_vertex_buffers;
121   pipe->set_index_buffer = softpipe_set_index_buffer;
122}
123