2 * Copyright 2003 Tungsten Graphics, inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 * Keith Whitwell <keithw@tungstengraphics.com>
33 /* New mechanism to specify hardware vertices so that tnl can build
34 * and manipulate them directly.
38 /* It will probably be necessary to allow drivers to specify new
39 * emit-styles to cover all the wierd and wacky things out there.
41 enum tnl_attr_format
{
46 EMIT_2F_VIEWPORT
, /* do viewport transform and emit */
47 EMIT_3F_VIEWPORT
, /* do viewport transform and emit */
48 EMIT_4F_VIEWPORT
, /* do viewport transform and emit */
49 EMIT_3F_XYW
, /* for projective texture */
50 EMIT_1UB_1F
, /* for fog coordinate */
51 EMIT_3UB_3F_RGB
, /* for specular color */
52 EMIT_3UB_3F_BGR
, /* for specular color */
53 EMIT_4UB_4F_RGBA
, /* for color */
54 EMIT_4UB_4F_BGRA
, /* for color */
55 EMIT_4CHAN_4F_RGBA
, /* for swrast color */
56 EMIT_PAD
, /* leave a hole of 'offset' bytes */
61 GLuint attrib
; /* _TNL_ATTRIB_ enum */
62 enum tnl_attr_format format
;
68 /* Interpolate between two vertices to produce a third:
70 extern void _tnl_interp( GLcontext
*ctx
,
72 GLuint edst
, GLuint eout
, GLuint ein
,
73 GLboolean force_boundary
);
75 /* Copy colors from one vertex to another:
77 extern void _tnl_copy_pv( GLcontext
*ctx
, GLuint edst
, GLuint esrc
);
80 /* Extract a named attribute from a hardware vertex. Will have to
81 * reverse any viewport transformation, swizzling or other conversions
82 * which may have been applied:
84 extern void _tnl_get_attr( GLcontext
*ctx
, const void *vertex
, GLenum attrib
,
87 /* Complementary to the above.
89 extern void _tnl_set_attr( GLcontext
*ctx
, void *vout
, GLenum attrib
,
93 extern void *_tnl_get_vertex( GLcontext
*ctx
, GLuint nr
);
98 extern GLuint
_tnl_install_attrs( GLcontext
*ctx
,
99 const struct tnl_attr_map
*map
,
100 GLuint nr
, const GLfloat
*vp
,
101 GLuint unpacked_size
);
107 extern void _tnl_free_vertices( GLcontext
*ctx
);
109 extern void _tnl_init_vertices( GLcontext
*ctx
,
111 GLuint max_vertex_size
);
113 extern void *_tnl_emit_vertices_to_buffer( GLcontext
*ctx
,
118 extern void _tnl_build_vertices( GLcontext
*ctx
,
123 extern void _tnl_invalidate_vertices( GLcontext
*ctx
, GLuint newinputs
);
125 extern void _tnl_invalidate_vertex_state( GLcontext
*ctx
, GLuint new_state
);
127 extern emit_func
_tnl_codegen_emit( GLcontext
*ctx
);
129 #define REG_IN (0<<16)
130 #define REG_OUT (1<<16)
131 #define REG_VP (2<<16)
132 #define REG_TMP (3<<16)
133 #define REG_MASK (3<<16)
135 #define REG_OFFSET_MASK 0xffff
137 #define in( offset ) (REG_IN | (offset))
138 #define out( offset ) (REG_OUT | (offset))
139 #define vp( offset ) (REG_VP | (offset))
140 #define tmp( offset ) (REG_TMP | (offset))
143 extern void _tnl_init_c_codegen( struct tnl_clipspace_codegen
*p
);
145 #define GET_VERTEX_STATE(ctx) &(TNL_CONTEXT(ctx)->clipspace)