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 "sp_context.h"
33 #include "sp_state.h"
34
35 #include "util/u_memory.h"
36 #include "util/u_inlines.h"
37 #include "util/u_transfer.h"
38 #include "draw/draw_context.h"
39
40
41 static void *
softpipe_create_vertex_elements_state(struct pipe_context * pipe,unsigned count,const struct pipe_vertex_element * attribs)42 softpipe_create_vertex_elements_state(struct pipe_context *pipe,
43 unsigned count,
44 const struct pipe_vertex_element *attribs)
45 {
46 struct sp_velems_state *velems;
47 assert(count <= PIPE_MAX_ATTRIBS);
48 velems = (struct sp_velems_state *) MALLOC(sizeof(struct sp_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
softpipe_bind_vertex_elements_state(struct pipe_context * pipe,void * velems)58 softpipe_bind_vertex_elements_state(struct pipe_context *pipe,
59 void *velems)
60 {
61 struct softpipe_context *softpipe = softpipe_context(pipe);
62 struct sp_velems_state *sp_velems = (struct sp_velems_state *) velems;
63
64 softpipe->velems = sp_velems;
65
66 softpipe->dirty |= SP_NEW_VERTEX;
67
68 if (sp_velems)
69 draw_set_vertex_elements(softpipe->draw, sp_velems->count, sp_velems->velem);
70 }
71
72
73 static void
softpipe_delete_vertex_elements_state(struct pipe_context * pipe,void * velems)74 softpipe_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
75 {
76 FREE( velems );
77 }
78
79
80 static void
softpipe_set_vertex_buffers(struct pipe_context * pipe,unsigned count,const struct pipe_vertex_buffer * buffers)81 softpipe_set_vertex_buffers(struct pipe_context *pipe,
82 unsigned count,
83 const struct pipe_vertex_buffer *buffers)
84 {
85 struct softpipe_context *softpipe = softpipe_context(pipe);
86
87 assert(count <= PIPE_MAX_ATTRIBS);
88
89 util_copy_vertex_buffers(softpipe->vertex_buffer,
90 &softpipe->num_vertex_buffers,
91 buffers, count);
92
93 softpipe->dirty |= SP_NEW_VERTEX;
94
95 draw_set_vertex_buffers(softpipe->draw, count, buffers);
96 }
97
98
99 static void
softpipe_set_index_buffer(struct pipe_context * pipe,const struct pipe_index_buffer * ib)100 softpipe_set_index_buffer(struct pipe_context *pipe,
101 const struct pipe_index_buffer *ib)
102 {
103 struct softpipe_context *softpipe = softpipe_context(pipe);
104
105 if (ib)
106 memcpy(&softpipe->index_buffer, ib, sizeof(softpipe->index_buffer));
107 else
108 memset(&softpipe->index_buffer, 0, sizeof(softpipe->index_buffer));
109 }
110
111
112 void
softpipe_init_vertex_funcs(struct pipe_context * pipe)113 softpipe_init_vertex_funcs(struct pipe_context *pipe)
114 {
115 pipe->create_vertex_elements_state = softpipe_create_vertex_elements_state;
116 pipe->bind_vertex_elements_state = softpipe_bind_vertex_elements_state;
117 pipe->delete_vertex_elements_state = softpipe_delete_vertex_elements_state;
118
119 pipe->set_vertex_buffers = softpipe_set_vertex_buffers;
120 pipe->set_index_buffer = softpipe_set_index_buffer;
121 }
122