tgsi_scan.h revision af69d88d 
1/**************************************************************************
2 *
3 * Copyright 2008 VMware, Inc.
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 VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
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 * Shader summary info
38 */
39struct tgsi_shader_info
40{
41   uint num_tokens;
42
43   ubyte num_inputs;
44   ubyte num_outputs;
45   ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS]; /**< TGSI_SEMANTIC_x */
46   ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
47   ubyte input_interpolate[PIPE_MAX_SHADER_INPUTS];
48   ubyte input_interpolate_loc[PIPE_MAX_SHADER_INPUTS];
49   ubyte input_usage_mask[PIPE_MAX_SHADER_INPUTS];
50   ubyte input_cylindrical_wrap[PIPE_MAX_SHADER_INPUTS];
51   ubyte output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; /**< TGSI_SEMANTIC_x */
52   ubyte output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
53
54   ubyte num_system_values;
55   ubyte system_value_semantic_name[PIPE_MAX_SHADER_INPUTS];
56
57   ubyte processor;
58
59   uint file_mask[TGSI_FILE_COUNT];  /**< bitmask of declared registers */
60   uint file_count[TGSI_FILE_COUNT];  /**< number of declared registers */
61   int file_max[TGSI_FILE_COUNT];  /**< highest index of declared registers */
62   int const_file_max[PIPE_MAX_CONSTANT_BUFFERS];
63
64   uint immediate_count; /**< number of immediates declared */
65   uint num_instructions;
66
67   uint opcode_count[TGSI_OPCODE_LAST];  /**< opcode histogram */
68
69   boolean reads_position; /**< does fragment shader read position? */
70   boolean reads_z; /**< does fragment shader read depth? */
71   boolean writes_z;  /**< does fragment shader write Z value? */
72   boolean writes_stencil; /**< does fragment shader write stencil value? */
73   boolean writes_edgeflag; /**< vertex shader outputs edgeflag */
74   boolean uses_kill;  /**< KILL or KILL_IF instruction used? */
75   boolean uses_instanceid;
76   boolean uses_vertexid;
77   boolean uses_primid;
78   boolean uses_frontface;
79   boolean origin_lower_left;
80   boolean pixel_center_integer;
81   boolean color0_writes_all_cbufs;
82   boolean writes_viewport_index;
83   boolean writes_layer;
84   boolean is_msaa_sampler[PIPE_MAX_SAMPLERS];
85
86   unsigned num_written_culldistance;
87   unsigned num_written_clipdistance;
88   /**
89    * Bitmask indicating which register files are accessed with
90    * indirect addressing.  The bits are (1 << TGSI_FILE_x), etc.
91    */
92   unsigned indirect_files;
93
94   struct {
95      unsigned name;
96      unsigned data[8];
97   } properties[TGSI_PROPERTY_COUNT];
98   uint num_properties;
99};
100
101extern void
102tgsi_scan_shader(const struct tgsi_token *tokens,
103                 struct tgsi_shader_info *info);
104
105
106extern boolean
107tgsi_is_passthrough_shader(const struct tgsi_token *tokens);
108
109
110#endif /* TGSI_SCAN_H */
111