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 "util/u_inlines.h"
27 #include "pipe/p_defines.h"
28 #include "util/u_math.h"
29 #include "util/u_memory.h"
30 #include "util/u_transfer.h"
31 #include "tgsi/tgsi_parse.h"
33 #include "svga_screen.h"
34 #include "svga_resource_buffer.h"
35 #include "svga_context.h"
38 static void svga_set_vertex_buffers(struct pipe_context
*pipe
,
40 const struct pipe_vertex_buffer
*buffers
)
42 struct svga_context
*svga
= svga_context(pipe
);
44 boolean any_user_buffer
= FALSE
;
46 /* Check for no change */
47 if (count
== svga
->curr
.num_vertex_buffers
&&
48 memcmp(svga
->curr
.vb
, buffers
, count
* sizeof buffers
[0]) == 0)
51 /* Adjust refcounts */
52 for (i
= 0; i
< count
; i
++) {
53 pipe_resource_reference(&svga
->curr
.vb
[i
].buffer
, buffers
[i
].buffer
);
54 if (svga_buffer_is_user_buffer(buffers
[i
].buffer
))
55 any_user_buffer
= TRUE
;
58 for ( ; i
< svga
->curr
.num_vertex_buffers
; i
++)
59 pipe_resource_reference(&svga
->curr
.vb
[i
].buffer
, NULL
);
61 /* Copy remaining data */
62 memcpy(svga
->curr
.vb
, buffers
, count
* sizeof buffers
[0]);
63 svga
->curr
.num_vertex_buffers
= count
;
64 svga
->curr
.any_user_vertex_buffers
= any_user_buffer
;
66 svga
->dirty
|= SVGA_NEW_VBUFFER
;
70 static void svga_set_index_buffer(struct pipe_context
*pipe
,
71 const struct pipe_index_buffer
*ib
)
73 struct svga_context
*svga
= svga_context(pipe
);
76 pipe_resource_reference(&svga
->curr
.ib
.buffer
, ib
->buffer
);
77 memcpy(&svga
->curr
.ib
, ib
, sizeof(svga
->curr
.ib
));
80 pipe_resource_reference(&svga
->curr
.ib
.buffer
, NULL
);
81 memset(&svga
->curr
.ib
, 0, sizeof(svga
->curr
.ib
));
84 /* TODO make this more like a state */
89 svga_create_vertex_elements_state(struct pipe_context
*pipe
,
91 const struct pipe_vertex_element
*attribs
)
93 struct svga_velems_state
*velems
;
94 assert(count
<= PIPE_MAX_ATTRIBS
);
95 velems
= (struct svga_velems_state
*) MALLOC(sizeof(struct svga_velems_state
));
97 velems
->count
= count
;
98 memcpy(velems
->velem
, attribs
, sizeof(*attribs
) * count
);
103 static void svga_bind_vertex_elements_state(struct pipe_context
*pipe
,
106 struct svga_context
*svga
= svga_context(pipe
);
107 struct svga_velems_state
*svga_velems
= (struct svga_velems_state
*) velems
;
109 svga
->curr
.velems
= svga_velems
;
110 svga
->dirty
|= SVGA_NEW_VELEMENT
;
113 static void svga_delete_vertex_elements_state(struct pipe_context
*pipe
,
119 void svga_cleanup_vertex_state( struct svga_context
*svga
)
123 for (i
= 0 ; i
< svga
->curr
.num_vertex_buffers
; i
++)
124 pipe_resource_reference(&svga
->curr
.vb
[i
].buffer
, NULL
);
128 void svga_init_vertex_functions( struct svga_context
*svga
)
130 svga
->pipe
.set_vertex_buffers
= svga_set_vertex_buffers
;
131 svga
->pipe
.set_index_buffer
= svga_set_index_buffer
;
132 svga
->pipe
.create_vertex_elements_state
= svga_create_vertex_elements_state
;
133 svga
->pipe
.bind_vertex_elements_state
= svga_bind_vertex_elements_state
;
134 svga
->pipe
.delete_vertex_elements_state
= svga_delete_vertex_elements_state
;