src/gallium/auxiliary/tgsi/tgsi_info.h

   1 /**************************************************************************
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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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  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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  26  **************************************************************************/
  27
  28 #ifndef TGSI_INFO_H
  29 #define TGSI_INFO_H
  30
  31 #include "pipe/p_compiler.h"
  32 #include "pipe/p_shader_tokens.h"
  33 #include "util/format/u_format.h"
  34
  35 #if defined __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 /* This enum describes how an opcode calculates its result. */
  40 enum tgsi_output_mode {
  41    /** The opcode produces no result. */
  42    TGSI_OUTPUT_NONE            = 0,
  43
  44    /** When this opcode writes to a channel of the destination register,
  45     *  it takes as arguments values from the same channel of the source
  46     *  register(s).
  47     *
  48     *  Example: TGSI_OPCODE_ADD
  49     */
  50    TGSI_OUTPUT_COMPONENTWISE   = 1,
  51
  52    /** This opcode writes the same value to all enabled channels of the
  53     * destination register.
  54     *
  55     *  Example: TGSI_OPCODE_RSQ
  56     */
  57    TGSI_OUTPUT_REPLICATE       = 2,
  58
  59    /** The operation performed by this opcode is dependent on which channel
  60     *  of the destination register is being written.
  61     *
  62     *  Example: TGSI_OPCODE_LOG
  63     */
  64    TGSI_OUTPUT_CHAN_DEPENDENT  = 3,
  65
  66    /**
  67     * Example: TGSI_OPCODE_TEX
  68     */
  69    TGSI_OUTPUT_OTHER           = 4
  70 };
  71
  72 struct tgsi_opcode_info
  73 {
  74    unsigned num_dst:3;
  75    unsigned num_src:3;
  76    unsigned is_tex:1;
  77    unsigned is_store:1;
  78    unsigned is_branch:1;
  79    unsigned pre_dedent:1;
  80    unsigned post_indent:1;
  81    enum tgsi_output_mode output_mode:4;
  82    enum tgsi_opcode opcode:10;
  83 };
  84
  85 const struct tgsi_opcode_info *
  86 tgsi_get_opcode_info(enum tgsi_opcode opcode);
  87
  88 const char *
  89 tgsi_get_opcode_name(enum tgsi_opcode opcode);
  90
  91 const char *
  92 tgsi_get_processor_name(enum pipe_shader_type processor);
  93
  94 enum tgsi_opcode_type {
  95    TGSI_TYPE_UNTYPED, /* for MOV */
  96    TGSI_TYPE_VOID,
  97    TGSI_TYPE_UNSIGNED,
  98    TGSI_TYPE_SIGNED,
  99    TGSI_TYPE_FLOAT,
 100    TGSI_TYPE_DOUBLE,
 101    TGSI_TYPE_UNSIGNED64,
 102    TGSI_TYPE_SIGNED64,
 103 };
 104
 105 static inline bool tgsi_type_is_64bit(enum tgsi_opcode_type type)
 106 {
 107    if (type == TGSI_TYPE_DOUBLE || type == TGSI_TYPE_UNSIGNED64 ||
 108        type == TGSI_TYPE_SIGNED64)
 109       return true;
 110    return false;
 111 }
 112
 113 enum tgsi_opcode_type
 114 tgsi_opcode_infer_src_type(enum tgsi_opcode opcode, uint src_idx);
 115
 116 enum tgsi_opcode_type
 117 tgsi_opcode_infer_dst_type(enum tgsi_opcode opcode, uint dst_idx);
 118
 119 #if defined __cplusplus
 120 }
 121 #endif
 122
 123 #endif /* TGSI_INFO_H */