1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 **********************************************************/
26 #include "pipe/p_inlines.h"
27 #include "pipe/p_defines.h"
28 #include "util/u_math.h"
29 #include "tgsi/tgsi_parse.h"
31 #include "svga_screen.h"
32 #include "svga_screen_buffer.h"
33 #include "svga_context.h"
36 static void svga_set_vertex_buffers(struct pipe_context
*pipe
,
38 const struct pipe_vertex_buffer
*buffers
)
40 struct svga_context
*svga
= svga_context(pipe
);
42 boolean any_user_buffer
= FALSE
;
44 /* Check for no change */
45 if (count
== svga
->curr
.num_vertex_buffers
&&
46 memcmp(svga
->curr
.vb
, buffers
, count
* sizeof buffers
[0]) == 0)
49 /* Adjust refcounts */
50 for (i
= 0; i
< count
; i
++) {
51 pipe_buffer_reference(&svga
->curr
.vb
[i
].buffer
, buffers
[i
].buffer
);
52 if (svga_buffer(buffers
[i
].buffer
)->user
)
53 any_user_buffer
= TRUE
;
56 for ( ; i
< svga
->curr
.num_vertex_buffers
; i
++)
57 pipe_buffer_reference(&svga
->curr
.vb
[i
].buffer
, NULL
);
59 /* Copy remaining data */
60 memcpy(svga
->curr
.vb
, buffers
, count
* sizeof buffers
[0]);
61 svga
->curr
.num_vertex_buffers
= count
;
62 svga
->curr
.any_user_vertex_buffers
= any_user_buffer
;
64 svga
->dirty
|= SVGA_NEW_VBUFFER
;
67 static void svga_set_vertex_elements(struct pipe_context
*pipe
,
69 const struct pipe_vertex_element
*elements
)
71 struct svga_context
*svga
= svga_context(pipe
);
74 for (i
= 0; i
< count
; i
++)
75 svga
->curr
.ve
[i
] = elements
[i
];
77 svga
->curr
.num_vertex_elements
= count
;
78 svga
->dirty
|= SVGA_NEW_VELEMENT
;
82 void svga_cleanup_vertex_state( struct svga_context
*svga
)
86 for (i
= 0 ; i
< svga
->curr
.num_vertex_buffers
; i
++)
87 pipe_buffer_reference(&svga
->curr
.vb
[i
].buffer
, NULL
);
91 void svga_init_vertex_functions( struct svga_context
*svga
)
93 svga
->pipe
.set_vertex_buffers
= svga_set_vertex_buffers
;
94 svga
->pipe
.set_vertex_elements
= svga_set_vertex_elements
;