1 /**************************************************************************
3 * Copyright 2009 VMWare Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
31 #include "draw_context.h"
32 #include "draw_private.h"
35 #define MAX_TGSI_PRIMITIVES 4
40 * Private version of the compiled geometry shader
42 struct draw_geometry_shader
{
43 struct draw_context
*draw
;
45 struct tgsi_exec_machine
*machine
;
47 /* This member will disappear shortly:*/
48 struct pipe_shader_state state
;
50 struct tgsi_shader_info info
;
51 unsigned position_output
;
53 unsigned max_output_vertices
;
54 unsigned input_primitive
;
55 unsigned output_primitive
;
57 /* Extracted from shader:
59 const float (*immediates
)[4];
62 void draw_geometry_shader_run(struct draw_geometry_shader
*shader
,
63 const float (*input
)[4],
65 const void *constants
[PIPE_MAX_CONSTANT_BUFFERS
],
67 unsigned input_stride
,
68 unsigned output_stride
);
70 void draw_geometry_shader_prepare(struct draw_geometry_shader
*shader
,
71 struct draw_context
*draw
);
73 void draw_geometry_shader_delete(struct draw_geometry_shader
*shader
);