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>
32 #include "t_context.h"
34 /* New mechanism to specify hardware vertices so that tnl can build
35 * and manipulate them directly.
39 /* It will probably be necessary to allow drivers to specify new
40 * emit-styles to cover all the wierd and wacky things out there.
42 enum tnl_attr_format
{
47 EMIT_2F_VIEWPORT
, /* do viewport transform and emit */
48 EMIT_3F_VIEWPORT
, /* do viewport transform and emit */
49 EMIT_4F_VIEWPORT
, /* do viewport transform and emit */
50 EMIT_3F_XYW
, /* for projective texture */
51 EMIT_1UB_1F
, /* for fog coordinate */
52 EMIT_3UB_3F_RGB
, /* for specular color */
53 EMIT_3UB_3F_BGR
, /* for specular color */
54 EMIT_4UB_4F_RGBA
, /* for color */
55 EMIT_4UB_4F_BGRA
, /* for color */
56 EMIT_4UB_4F_ARGB
, /* for color */
57 EMIT_4UB_4F_ABGR
, /* for color */
58 EMIT_4CHAN_4F_RGBA
, /* for swrast color */
59 EMIT_PAD
, /* leave a hole of 'offset' bytes */
64 GLuint attrib
; /* _TNL_ATTRIB_ enum */
65 enum tnl_attr_format format
;
71 /* Interpolate between two vertices to produce a third:
73 extern void _tnl_interp( GLcontext
*ctx
,
75 GLuint edst
, GLuint eout
, GLuint ein
,
76 GLboolean force_boundary
);
78 /* Copy colors from one vertex to another:
80 extern void _tnl_copy_pv( GLcontext
*ctx
, GLuint edst
, GLuint esrc
);
83 /* Extract a named attribute from a hardware vertex. Will have to
84 * reverse any viewport transformation, swizzling or other conversions
85 * which may have been applied:
87 extern void _tnl_get_attr( GLcontext
*ctx
, const void *vertex
, GLenum attrib
,
90 /* Complementary to the above.
92 extern void _tnl_set_attr( GLcontext
*ctx
, void *vout
, GLenum attrib
,
96 extern void *_tnl_get_vertex( GLcontext
*ctx
, GLuint nr
);
101 extern GLuint
_tnl_install_attrs( GLcontext
*ctx
,
102 const struct tnl_attr_map
*map
,
103 GLuint nr
, const GLfloat
*vp
,
104 GLuint unpacked_size
);
110 extern void _tnl_free_vertices( GLcontext
*ctx
);
112 extern void _tnl_init_vertices( GLcontext
*ctx
,
114 GLuint max_vertex_size
);
116 extern void *_tnl_emit_vertices_to_buffer( GLcontext
*ctx
,
121 extern void _tnl_build_vertices( GLcontext
*ctx
,
126 extern void _tnl_invalidate_vertices( GLcontext
*ctx
, GLuint newinputs
);
128 extern void _tnl_invalidate_vertex_state( GLcontext
*ctx
, GLuint new_state
);
130 extern tnl_emit_func
_tnl_codegen_emit( GLcontext
*ctx
);
132 #define REG_IN (0<<16)
133 #define REG_OUT (1<<16)
134 #define REG_VP (2<<16)
135 #define REG_TMP (3<<16)
136 #define REG_MASK (3<<16)
138 #define REG_OFFSET_MASK 0xffff
140 #define in( offset ) (REG_IN | (offset))
141 #define out( offset ) (REG_OUT | (offset))
142 #define vp( offset ) (REG_VP | (offset))
143 #define tmp( offset ) (REG_TMP | (offset))
146 extern void _tnl_init_c_codegen( struct tnl_clipspace_codegen
*p
);
148 #define GET_VERTEX_STATE(ctx) &(TNL_CONTEXT(ctx)->clipspace)