tgsi_scan.h revision db99ca3bc999137e6d523aa24e13cc5cfbb2b52c 
1/**************************************************************************
2 *
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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.
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26 **************************************************************************/
27
28#ifndef TGSI_SCAN_H
29#define TGSI_SCAN_H
30
31
32#include "pipe/p_compiler.h"
33#include "pipe/p_state.h"
34#include "pipe/p_shader_tokens.h"
35
36
37/**
38 * Shader summary info
39 */
40struct tgsi_shader_info
41{
42   uint num_tokens;
43
44   ubyte num_inputs;
45   ubyte num_outputs;
46   ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS]; /**< TGSI_SEMANTIC_x */
47   ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
48   ubyte output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; /**< TGSI_SEMANTIC_x */
49   ubyte output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
50
51   uint file_mask[TGSI_FILE_COUNT];  /**< bitmask of declared registers */
52   uint file_count[TGSI_FILE_COUNT];  /**< number of declared registers */
53   int file_max[TGSI_FILE_COUNT];  /**< highest index of declared registers */
54
55   uint immediate_count; /**< number of immediates declared */
56
57   uint opcode_count[TGSI_OPCODE_LAST];  /**< opcode histogram */
58
59   boolean writes_z;  /**< does fragment shader write Z value? */
60   boolean uses_kill;  /**< KIL or KILP instruction used? */
61   boolean uses_fogcoord; /**< fragment shader uses fog coord? */
62   boolean uses_frontfacing; /**< fragment shader uses front/back-face flag? */
63};
64
65
66extern void
67tgsi_scan_shader(const struct tgsi_token *tokens,
68                 struct tgsi_shader_info *info);
69
70
71extern boolean
72tgsi_is_passthrough_shader(const struct tgsi_token *tokens);
73
74
75#endif /* TGSI_SCAN_H */
76