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  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.
  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 input_centroid[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.  
  63.    uint immediate_count; /**< number of immediates declared */
  64.    uint num_instructions;
  65.  
  66.    uint opcode_count[TGSI_OPCODE_LAST];  /**< opcode histogram */
  67.  
  68.    boolean reads_position; /**< does fragment shader read position? */
  69.    boolean reads_z; /**< does fragment shader read depth? */
  70.    boolean writes_z;  /**< does fragment shader write Z value? */
  71.    boolean writes_stencil; /**< does fragment shader write stencil value? */
  72.    boolean writes_edgeflag; /**< vertex shader outputs edgeflag */
  73.    boolean uses_kill;  /**< KILL or KILL_IF instruction used? */
  74.    boolean uses_instanceid;
  75.    boolean uses_vertexid;
  76.    boolean uses_primid;
  77.    boolean origin_lower_left;
  78.    boolean pixel_center_integer;
  79.    boolean color0_writes_all_cbufs;
  80.    boolean writes_viewport_index;
  81.    boolean writes_layer;
  82.  
  83.    unsigned num_written_culldistance;
  84.    unsigned num_written_clipdistance;
  85.    /**
  86.     * Bitmask indicating which register files are accessed with
  87.     * indirect addressing.  The bits are (1 << TGSI_FILE_x), etc.
  88.     */
  89.    unsigned indirect_files;
  90.  
  91.    struct {
  92.       unsigned name;
  93.       unsigned data[8];
  94.    } properties[TGSI_PROPERTY_COUNT];
  95.    uint num_properties;
  96. };
  97.  
  98. extern void
  99. tgsi_scan_shader(const struct tgsi_token *tokens,
  100.                  struct tgsi_shader_info *info);
  101.  
  102.  
  103. extern boolean
  104. tgsi_is_passthrough_shader(const struct tgsi_token *tokens);
  105.  
  106.  
  107. #endif /* TGSI_SCAN_H */
  108.