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 "lp_context.h"
33#include "lp_state.h"
34
35#include "draw/draw_context.h"
36#include "util/u_inlines.h"
37#include "util/u_transfer.h"
38
39
40static void *
41llvmpipe_create_vertex_elements_state(struct pipe_context *pipe,
42                                      unsigned count,
43                                      const struct pipe_vertex_element *attribs)
44{
45   struct lp_velems_state *velems;
46   assert(count <= PIPE_MAX_ATTRIBS);
47   velems = (struct lp_velems_state *) MALLOC(sizeof(struct lp_velems_state));
48   if (velems) {
49      velems->count = count;
50      memcpy(velems->velem, attribs, sizeof(*attribs) * count);
51   }
52   return velems;
53}
54
55static void
56llvmpipe_bind_vertex_elements_state(struct pipe_context *pipe,
57                                    void *velems)
58{
59   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
60   struct lp_velems_state *lp_velems = (struct lp_velems_state *) velems;
61
62   llvmpipe->velems = lp_velems;
63
64   llvmpipe->dirty |= LP_NEW_VERTEX;
65
66   if (velems)
67      draw_set_vertex_elements(llvmpipe->draw, lp_velems->count, lp_velems->velem);
68}
69
70static void
71llvmpipe_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
72{
73   FREE( velems );
74}
75
76static void
77llvmpipe_set_vertex_buffers(struct pipe_context *pipe,
78                            unsigned count,
79                            const struct pipe_vertex_buffer *buffers)
80{
81   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
82
83   assert(count <= PIPE_MAX_ATTRIBS);
84
85   util_copy_vertex_buffers(llvmpipe->vertex_buffer,
86                            &llvmpipe->num_vertex_buffers,
87                            buffers, count);
88
89   llvmpipe->dirty |= LP_NEW_VERTEX;
90
91   draw_set_vertex_buffers(llvmpipe->draw, count, buffers);
92}
93
94
95static void
96llvmpipe_set_index_buffer(struct pipe_context *pipe,
97                          const struct pipe_index_buffer *ib)
98{
99   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
100
101   if (ib)
102      memcpy(&llvmpipe->index_buffer, ib, sizeof(llvmpipe->index_buffer));
103   else
104      memset(&llvmpipe->index_buffer, 0, sizeof(llvmpipe->index_buffer));
105}
106
107void
108llvmpipe_init_vertex_funcs(struct llvmpipe_context *llvmpipe)
109{
110   llvmpipe->pipe.create_vertex_elements_state = llvmpipe_create_vertex_elements_state;
111   llvmpipe->pipe.bind_vertex_elements_state = llvmpipe_bind_vertex_elements_state;
112   llvmpipe->pipe.delete_vertex_elements_state = llvmpipe_delete_vertex_elements_state;
113
114   llvmpipe->pipe.set_vertex_buffers = llvmpipe_set_vertex_buffers;
115   llvmpipe->pipe.set_index_buffer = llvmpipe_set_index_buffer;
116}
117