src/gallium/auxiliary/tgsi/tgsi_scan.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
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   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
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  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
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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  * Shader summary info
  38  */
  39 struct 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    unsigned array_max[TGSI_FILE_COUNT];  /**< highest index array per register file */
  65
  66    uint immediate_count; /**< number of immediates declared */
  67    uint num_instructions;
  68
  69    uint opcode_count[TGSI_OPCODE_LAST];  /**< opcode histogram */
  70
  71    boolean reads_position; /**< does fragment shader read position? */
  72    boolean reads_z; /**< does fragment shader read depth? */
  73    boolean writes_z;  /**< does fragment shader write Z value? */
  74    boolean writes_stencil; /**< does fragment shader write stencil value? */
  75    boolean writes_edgeflag; /**< vertex shader outputs edgeflag */
  76    boolean uses_kill;  /**< KILL or KILL_IF instruction used? */
  77    boolean uses_centroid;
  78    boolean uses_instanceid;
  79    boolean uses_vertexid;
  80    boolean uses_vertexid_nobase;
  81    boolean uses_basevertex;
  82    boolean uses_primid;
  83    boolean uses_frontface;
  84    boolean writes_psize;
  85    boolean writes_clipvertex;
  86    boolean writes_viewport_index;
  87    boolean writes_layer;
  88    boolean is_msaa_sampler[PIPE_MAX_SAMPLERS];
  89
  90    unsigned clipdist_writemask;
  91    unsigned culldist_writemask;
  92    unsigned num_written_culldistance;
  93    unsigned num_written_clipdistance;
  94    /**
  95     * Bitmask indicating which register files are accessed with
  96     * indirect addressing.  The bits are (1 << TGSI_FILE_x), etc.
  97     */
  98    unsigned indirect_files;
  99    /**
 100     * Bitmask indicating which register files are read / written with
 101     * indirect addressing.  The bits are (1 << TGSI_FILE_x).
 102     */
 103    unsigned indirect_files_read;
 104    unsigned indirect_files_written;
 105
 106    unsigned properties[TGSI_PROPERTY_COUNT]; /* index with TGSI_PROPERTY_ */
 107 };
 108
 109 extern void
 110 tgsi_scan_shader(const struct tgsi_token *tokens,
 111                  struct tgsi_shader_info *info);
 112
 113
 114 extern boolean
 115 tgsi_is_passthrough_shader(const struct tgsi_token *tokens);
 116
 117
 118 #endif /* TGSI_SCAN_H */