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