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
40 static void *
llvmpipe_create_vertex_elements_state(struct pipe_context * pipe,unsigned count,const struct pipe_vertex_element * attribs)41 llvmpipe_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
55 static void
llvmpipe_bind_vertex_elements_state(struct pipe_context * pipe,void * velems)56 llvmpipe_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
70 static void
llvmpipe_delete_vertex_elements_state(struct pipe_context * pipe,void * velems)71 llvmpipe_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
72 {
73 FREE( velems );
74 }
75
76 static void
llvmpipe_set_vertex_buffers(struct pipe_context * pipe,unsigned count,const struct pipe_vertex_buffer * buffers)77 llvmpipe_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
95 static void
llvmpipe_set_index_buffer(struct pipe_context * pipe,const struct pipe_index_buffer * ib)96 llvmpipe_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
107 void
llvmpipe_init_vertex_funcs(struct llvmpipe_context * llvmpipe)108 llvmpipe_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