src/gallium/auxiliary/tgsi/tgsi_scan.h

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   3  * Copyright 2008 VMware, Inc.
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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  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 #ifdef __cplusplus
  37 extern "C" {
  38 #endif
  39
  40 /**
  41  * Shader summary info
  42  */
  43 struct tgsi_shader_info
  44 {
  45    uint num_tokens;
  46
  47    ubyte num_inputs;
  48    ubyte num_outputs;
  49    ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS]; /**< TGSI_SEMANTIC_x */
  50    ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
  51    ubyte input_interpolate[PIPE_MAX_SHADER_INPUTS];
  52    ubyte input_interpolate_loc[PIPE_MAX_SHADER_INPUTS];
  53    ubyte input_usage_mask[PIPE_MAX_SHADER_INPUTS];
  54    ubyte input_cylindrical_wrap[PIPE_MAX_SHADER_INPUTS];
  55    ubyte output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; /**< TGSI_SEMANTIC_x */
  56    ubyte output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
  57
  58    ubyte num_system_values;
  59    ubyte system_value_semantic_name[PIPE_MAX_SHADER_INPUTS];
  60
  61    ubyte processor;
  62
  63    uint file_mask[TGSI_FILE_COUNT];  /**< bitmask of declared registers */
  64    uint file_count[TGSI_FILE_COUNT];  /**< number of declared registers */
  65    int file_max[TGSI_FILE_COUNT];  /**< highest index of declared registers */
  66    int const_file_max[PIPE_MAX_CONSTANT_BUFFERS];
  67    unsigned samplers_declared; /**< bitmask of declared samplers */
  68
  69    ubyte input_array_first[PIPE_MAX_SHADER_INPUTS];
  70    ubyte input_array_last[PIPE_MAX_SHADER_INPUTS];
  71    ubyte output_array_first[PIPE_MAX_SHADER_OUTPUTS];
  72    ubyte output_array_last[PIPE_MAX_SHADER_OUTPUTS];
  73    unsigned array_max[TGSI_FILE_COUNT];  /**< highest index array per register file */
  74
  75    uint immediate_count; /**< number of immediates declared */
  76    uint num_instructions;
  77    uint num_memory_instructions; /**< sampler, buffer, and image instructions */
  78
  79    uint opcode_count[TGSI_OPCODE_LAST];  /**< opcode histogram */
  80
  81    ubyte colors_read; /**< which color components are read by the FS */
  82    ubyte colors_written;
  83    boolean reads_position; /**< does fragment shader read position? */
  84    boolean reads_z; /**< does fragment shader read depth? */
  85    boolean reads_samplemask; /**< does fragment shader read sample mask? */
  86    boolean writes_z;  /**< does fragment shader write Z value? */
  87    boolean writes_stencil; /**< does fragment shader write stencil value? */
  88    boolean writes_samplemask; /**< does fragment shader write sample mask? */
  89    boolean writes_edgeflag; /**< vertex shader outputs edgeflag */
  90    boolean uses_kill;  /**< KILL or KILL_IF instruction used? */
  91    boolean uses_persp_center;
  92    boolean uses_persp_centroid;
  93    boolean uses_persp_sample;
  94    boolean uses_linear_center;
  95    boolean uses_linear_centroid;
  96    boolean uses_linear_sample;
  97    boolean uses_persp_opcode_interp_centroid;
  98    boolean uses_persp_opcode_interp_offset;
  99    boolean uses_persp_opcode_interp_sample;
 100    boolean uses_linear_opcode_interp_centroid;
 101    boolean uses_linear_opcode_interp_offset;
 102    boolean uses_linear_opcode_interp_sample;
 103    boolean uses_instanceid;
 104    boolean uses_vertexid;
 105    boolean uses_vertexid_nobase;
 106    boolean uses_basevertex;
 107    boolean uses_primid;
 108    boolean uses_frontface;
 109    boolean uses_invocationid;
 110    boolean writes_psize;
 111    boolean writes_clipvertex;
 112    boolean writes_viewport_index;
 113    boolean writes_layer;
 114    boolean writes_memory; /**< contains stores or atomics to buffers or images */
 115    boolean is_msaa_sampler[PIPE_MAX_SAMPLERS];
 116    boolean uses_doubles; /**< uses any of the double instructions */
 117    unsigned clipdist_writemask;
 118    unsigned culldist_writemask;
 119    unsigned num_written_culldistance;
 120    unsigned num_written_clipdistance;
 121    /**
 122     * Bitmask indicating which images are written to (STORE / ATOM*).
 123     * Indirect image accesses are not reflected in this mask.
 124     */
 125    unsigned images_writemask;
 126    /**
 127     * Bitmask indicating which declared image is a buffer.
 128     */
 129    unsigned images_buffers;
 130    /**
 131     * Bitmask indicating which register files are accessed with
 132     * indirect addressing.  The bits are (1 << TGSI_FILE_x), etc.
 133     */
 134    unsigned indirect_files;
 135    /**
 136     * Bitmask indicating which register files are read / written with
 137     * indirect addressing.  The bits are (1 << TGSI_FILE_x).
 138     */
 139    unsigned indirect_files_read;
 140    unsigned indirect_files_written;
 141
 142    unsigned properties[TGSI_PROPERTY_COUNT]; /* index with TGSI_PROPERTY_ */
 143
 144    /**
 145     * Max nesting limit of loops/if's
 146     */
 147    unsigned max_depth;
 148 };
 149
 150 extern void
 151 tgsi_scan_shader(const struct tgsi_token *tokens,
 152                  struct tgsi_shader_info *info);
 153
 154
 155 extern boolean
 156 tgsi_is_passthrough_shader(const struct tgsi_token *tokens);
 157
 158 #ifdef __cplusplus
 159 } // extern "C"
 160 #endif
 161
 162 #endif /* TGSI_SCAN_H */