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 <[email protected]>
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
41 static void *
llvmpipe_create_vertex_elements_state(struct pipe_context * pipe,unsigned count,const struct pipe_vertex_element * attribs)42 llvmpipe_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
56
57 static void
llvmpipe_bind_vertex_elements_state(struct pipe_context * pipe,void * velems)58 llvmpipe_bind_vertex_elements_state(struct pipe_context *pipe,
59 void *velems)
60 {
61 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
62 struct lp_velems_state *lp_velems = (struct lp_velems_state *) velems;
63
64 llvmpipe->velems = lp_velems;
65
66 llvmpipe->dirty |= LP_NEW_VERTEX;
67
68 if (velems)
69 draw_set_vertex_elements(llvmpipe->draw, lp_velems->count,
70 lp_velems->velem);
71 }
72
73
74 static void
llvmpipe_delete_vertex_elements_state(struct pipe_context * pipe,void * velems)75 llvmpipe_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
76 {
77 FREE(velems);
78 }
79
80
81 static void
llvmpipe_set_vertex_buffers(struct pipe_context * pipe,unsigned count,const struct pipe_vertex_buffer * buffers)82 llvmpipe_set_vertex_buffers(struct pipe_context *pipe,
83 unsigned count,
84 const struct pipe_vertex_buffer *buffers)
85 {
86 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
87
88 assert(count <= PIPE_MAX_ATTRIBS);
89
90 util_set_vertex_buffers_count(llvmpipe->vertex_buffer,
91 &llvmpipe->num_vertex_buffers,
92 buffers, count, true);
93
94 llvmpipe->dirty |= LP_NEW_VERTEX;
95
96 draw_set_vertex_buffers(llvmpipe->draw, count, buffers);
97 }
98
99
100 void
llvmpipe_init_vertex_funcs(struct llvmpipe_context * llvmpipe)101 llvmpipe_init_vertex_funcs(struct llvmpipe_context *llvmpipe)
102 {
103 llvmpipe->pipe.create_vertex_elements_state = llvmpipe_create_vertex_elements_state;
104 llvmpipe->pipe.bind_vertex_elements_state = llvmpipe_bind_vertex_elements_state;
105 llvmpipe->pipe.delete_vertex_elements_state = llvmpipe_delete_vertex_elements_state;
106
107 llvmpipe->pipe.set_vertex_buffers = llvmpipe_set_vertex_buffers;
108 }
109