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>
31 #include "main/glheader.h"
32 #include "t_context.h"
37 /* New mechanism to specify hardware vertices so that tnl can build
38 * and manipulate them directly.
42 /* It will probably be necessary to allow drivers to specify new
43 * emit-styles to cover all the wierd and wacky things out there.
45 enum tnl_attr_format {
50 EMIT_2F_VIEWPORT, /* do viewport transform and emit */
51 EMIT_3F_VIEWPORT, /* do viewport transform and emit */
52 EMIT_4F_VIEWPORT, /* do viewport transform and emit */
53 EMIT_3F_XYW, /* for projective texture */
54 EMIT_1UB_1F, /* for fog coordinate */
55 EMIT_3UB_3F_RGB, /* for specular color */
56 EMIT_3UB_3F_BGR, /* for specular color */
57 EMIT_4UB_4F_RGBA, /* for color */
58 EMIT_4UB_4F_BGRA, /* for color */
59 EMIT_4UB_4F_ARGB, /* for color */
60 EMIT_4UB_4F_ABGR, /* for color */
61 EMIT_4CHAN_4F_RGBA, /* for swrast color */
62 EMIT_PAD, /* leave a hole of 'offset' bytes */
67 GLuint attrib; /* _TNL_ATTRIB_ enum */
68 enum tnl_attr_format format;
72 struct tnl_format_info {
74 tnl_extract_func extract;
75 tnl_insert_func insert[4];
76 const GLuint attrsize;
79 extern const struct tnl_format_info _tnl_format_info[EMIT_MAX];
82 /* Interpolate between two vertices to produce a third:
84 extern void _tnl_interp( struct gl_context *ctx,
86 GLuint edst, GLuint eout, GLuint ein,
87 GLboolean force_boundary );
89 /* Copy colors from one vertex to another:
91 extern void _tnl_copy_pv( struct gl_context *ctx, GLuint edst, GLuint esrc );
94 /* Extract a named attribute from a hardware vertex. Will have to
95 * reverse any viewport transformation, swizzling or other conversions
96 * which may have been applied:
98 extern void _tnl_get_attr( struct gl_context *ctx, const void *vertex, GLenum attrib,
101 /* Complementary to the above.
103 extern void _tnl_set_attr( struct gl_context *ctx, void *vout, GLenum attrib,
104 const GLfloat *src );
107 extern void *_tnl_get_vertex( struct gl_context *ctx, GLuint nr );
109 extern GLuint _tnl_install_attrs( struct gl_context *ctx,
110 const struct tnl_attr_map *map,
111 GLuint nr, const GLfloat *vp,
112 GLuint unpacked_size );
114 extern void _tnl_free_vertices( struct gl_context *ctx );
116 extern void _tnl_init_vertices( struct gl_context *ctx,
118 GLuint max_vertex_size );
120 extern void *_tnl_emit_vertices_to_buffer( struct gl_context *ctx,
125 /* This function isn't optimal. Check out
126 * gallium/auxilary/translate for a more comprehensive implementation of
127 * the same functionality.
130 extern void *_tnl_emit_indexed_vertices_to_buffer( struct gl_context *ctx,
137 extern void _tnl_build_vertices( struct gl_context *ctx,
142 extern void _tnl_invalidate_vertices( struct gl_context *ctx, GLuint newinputs );
144 extern void _tnl_invalidate_vertex_state( struct gl_context *ctx, GLuint new_state );
146 extern void _tnl_notify_pipeline_output_change( struct gl_context *ctx );
149 #define GET_VERTEX_STATE(ctx) &(TNL_CONTEXT(ctx)->clipspace)
151 /* Internal function:
153 void _tnl_register_fastpath( struct tnl_clipspace *vtx,
154 GLboolean match_strides );
157 /* t_vertex_generic.c -- Internal functions for t_vertex.c
159 void _tnl_generic_copy_pv_extras( struct gl_context *ctx,
160 GLuint dst, GLuint src );
162 void _tnl_generic_interp_extras( struct gl_context *ctx,
164 GLuint dst, GLuint out, GLuint in,
165 GLboolean force_boundary );
167 void _tnl_generic_copy_pv( struct gl_context *ctx, GLuint edst, GLuint esrc );
169 void _tnl_generic_interp( struct gl_context *ctx,
171 GLuint edst, GLuint eout, GLuint ein,
172 GLboolean force_boundary );
174 void _tnl_generic_emit( struct gl_context *ctx,
178 void _tnl_generate_hardwired_emit( struct gl_context *ctx );
180 /* t_vertex_sse.c -- Internal functions for t_vertex.c
182 void _tnl_generate_sse_emit( struct gl_context *ctx );