1 /*
2  * Copyright (C) 2009-2010 Francisco Jerez.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining
6  * a copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sublicense, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial
15  * portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  *
25  */
26 
27 #ifndef __NOUVEAU_RENDER_H__
28 #define __NOUVEAU_RENDER_H__
29 
30 #include "vbo/vbo_context.h"
31 #include "nouveau_array.h"
32 
33 typedef void (*dispatch_t)(struct gl_context *, unsigned int, int, unsigned int);
34 typedef void (*emit_t)(struct gl_context *, struct nouveau_array *, const void *);
35 
36 struct nouveau_attr_info {
37 	int vbo_index;
38 	int imm_method;
39 	int imm_fields;
40 
41 	emit_t emit;
42 };
43 
44 struct nouveau_swtnl_state {
45 	struct nouveau_bo *vbo;
46 	unsigned offset;
47 	void *buf;
48 	unsigned vertex_count;
49 	GLenum primitive;
50 };
51 
52 struct nouveau_render_state {
53 	enum {
54 		VBO,
55 		IMM
56 	} mode;
57 
58 	struct nouveau_array ib;
59 	struct nouveau_array attrs[VERT_ATTRIB_MAX];
60 
61 	/* Maps a HW VBO index or IMM emission order to an index in
62 	 * the attrs array above (or -1 if unused). */
63 	int map[VERT_ATTRIB_MAX];
64 
65 	int attr_count;
66 	int vertex_size;
67 
68 	struct nouveau_swtnl_state swtnl;
69 };
70 
71 #define to_render_state(ctx) (&to_nouveau_context(ctx)->render)
72 
73 #define FOR_EACH_ATTR(render, i, attr)					\
74 	for (i = 0; attr = (render)->map[i], i < NUM_VERTEX_ATTRS; i++)
75 
76 #define FOR_EACH_BOUND_ATTR(render, i, attr)				\
77 	for (i = 0; attr = (render)->map[i], i < render->attr_count; i++) \
78 		if (attr >= 0)
79 
80 #endif
81