tgsi_scan.h revision ff5b0c72db20be099f9fc7dee22aeebbda75ab42 
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.
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22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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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 input_interpolate[PIPE_MAX_SHADER_INPUTS];
49   ubyte output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; /**< TGSI_SEMANTIC_x */
50   ubyte output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
51
52   uint file_mask[TGSI_FILE_COUNT];  /**< bitmask of declared registers */
53   uint file_count[TGSI_FILE_COUNT];  /**< number of declared registers */
54   int file_max[TGSI_FILE_COUNT];  /**< highest index of declared registers */
55
56   uint immediate_count; /**< number of immediates declared */
57
58   uint opcode_count[TGSI_OPCODE_LAST];  /**< opcode histogram */
59
60   boolean writes_z;  /**< does fragment shader write Z value? */
61   boolean writes_edgeflag; /**< vertex shader outputs edgeflag */
62   boolean uses_kill;  /**< KIL or KILP instruction used? */
63   boolean uses_fogcoord; /**< fragment shader uses fog coord? */
64   boolean uses_frontfacing; /**< fragment shader uses front/back-face flag? */
65};
66
67
68extern void
69tgsi_scan_shader(const struct tgsi_token *tokens,
70                 struct tgsi_shader_info *info);
71
72
73extern boolean
74tgsi_is_passthrough_shader(const struct tgsi_token *tokens);
75
76
77#endif /* TGSI_SCAN_H */
78