src/gallium/auxiliary/tgsi/tgsi_scan.h

   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,
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  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
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  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  */
  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 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 writes_edgeflag; /**< vertex shader outputs edgeflag */
  61    boolean uses_kill;  /**< KIL or KILP instruction used? */
  62    boolean uses_fogcoord; /**< fragment shader uses fog coord? */
  63    boolean uses_frontfacing; /**< fragment shader uses front/back-face flag? */
  64
  65    struct {
  66       unsigned name;
  67       unsigned data[8];
  68    } properties[TGSI_PROPERTY_COUNT];
  69    uint num_properties;
  70 };
  71
  72 extern void
  73 tgsi_scan_shader(const struct tgsi_token *tokens,
  74                  struct tgsi_shader_info *info);
  75
  76
  77 extern boolean
  78 tgsi_is_passthrough_shader(const struct tgsi_token *tokens);
  79
  80
  81 #endif /* TGSI_SCAN_H */