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
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 static void
llvmpipe_bind_vertex_elements_state(struct pipe_context * pipe,void * velems)57 llvmpipe_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
71 static void
llvmpipe_delete_vertex_elements_state(struct pipe_context * pipe,void * velems)72 llvmpipe_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
73 {
74 FREE( velems );
75 }
76
77 static void
llvmpipe_set_vertex_buffers(struct pipe_context * pipe,unsigned start_slot,unsigned count,const struct pipe_vertex_buffer * buffers)78 llvmpipe_set_vertex_buffers(struct pipe_context *pipe,
79 unsigned start_slot, unsigned count,
80 const struct pipe_vertex_buffer *buffers)
81 {
82 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
83
84 assert(count <= PIPE_MAX_ATTRIBS);
85
86 util_set_vertex_buffers_count(llvmpipe->vertex_buffer,
87 &llvmpipe->num_vertex_buffers,
88 buffers, start_slot, count);
89
90 llvmpipe->dirty |= LP_NEW_VERTEX;
91
92 draw_set_vertex_buffers(llvmpipe->draw, start_slot, count, buffers);
93 }
94
95
96 static void
llvmpipe_set_index_buffer(struct pipe_context * pipe,const struct pipe_index_buffer * ib)97 llvmpipe_set_index_buffer(struct pipe_context *pipe,
98 const struct pipe_index_buffer *ib)
99 {
100 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
101
102 if (ib)
103 memcpy(&llvmpipe->index_buffer, ib, sizeof(llvmpipe->index_buffer));
104 else
105 memset(&llvmpipe->index_buffer, 0, sizeof(llvmpipe->index_buffer));
106 }
107
108 void
llvmpipe_init_vertex_funcs(struct llvmpipe_context * llvmpipe)109 llvmpipe_init_vertex_funcs(struct llvmpipe_context *llvmpipe)
110 {
111 llvmpipe->pipe.create_vertex_elements_state = llvmpipe_create_vertex_elements_state;
112 llvmpipe->pipe.bind_vertex_elements_state = llvmpipe_bind_vertex_elements_state;
113 llvmpipe->pipe.delete_vertex_elements_state = llvmpipe_delete_vertex_elements_state;
114
115 llvmpipe->pipe.set_vertex_buffers = llvmpipe_set_vertex_buffers;
116 llvmpipe->pipe.set_index_buffer = llvmpipe_set_index_buffer;
117 }
118