54301c3433f7806d3fe4e13082f56d6aec73ed1e
1 /* $Id: s_span.h,v 1.16 2002/04/12 15:39:59 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
37 _mesa_span_default_z( GLcontext
*ctx
, struct sw_span
*span
);
40 _mesa_span_interpolate_z( const GLcontext
*ctx
, struct sw_span
*span
);
43 _mesa_span_default_fog( GLcontext
*ctx
, struct sw_span
*span
);
46 _mesa_span_default_color( GLcontext
*ctx
, struct sw_span
*span
);
50 _mesa_write_index_span( GLcontext
*ctx
, struct sw_span
*span
);
54 _mesa_write_rgba_span( GLcontext
*ctx
, struct sw_span
*span
);
58 _mesa_write_texture_span( GLcontext
*ctx
, struct sw_span
*span
);
62 _mesa_read_rgba_span( GLcontext
*ctx
, GLframebuffer
*buffer
,
63 GLuint n
, GLint x
, GLint y
, GLchan rgba
[][4] );
66 _mesa_read_index_span( GLcontext
*ctx
, GLframebuffer
*buffer
,
67 GLuint n
, GLint x
, GLint y
, GLuint indx
[] );