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      1 /**************************************************************************
      2  *
      3  * Copyright 2012-2021 VMware, Inc.
      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 SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     17  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
     18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     19  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     20  * USE OR OTHER DEALINGS IN THE SOFTWARE.
     21  *
     22  * The above copyright notice and this permission notice (including the
     23  * next paragraph) shall be included in all copies or substantial portions
     24  * of the Software.
     25  *
     26  **************************************************************************/
     27 
     28 /*
     29  * ShaderParse.h --
     30  *    Functions for parsing shader tokens.
     31  */
     32 
     33 #ifndef SHADER_PARSE_H
     34 #define SHADER_PARSE_H
     35 
     36 #include "DriverIncludes.h"
     37 
     38 //#include "winddk/winddk_compat.h"
     39 #include "winddk/d3d10tokenizedprogramformat.hpp"
     40 
     41 #ifdef __cplusplus
     42 extern "C" {
     43 #endif
     44 
     45 struct Shader_header {
     46    D3D10_SB_TOKENIZED_PROGRAM_TYPE type;
     47    unsigned major_version;
     48    unsigned minor_version;
     49    unsigned size;
     50 };
     51 
     52 struct dx10_imm_const_buf {
     53    unsigned count;
     54    unsigned *data;
     55 };
     56 
     57 struct dx10_customdata {
     58    D3D10_SB_CUSTOMDATA_CLASS _class;
     59    union {
     60       struct dx10_imm_const_buf constbuf;
     61    } u;
     62 };
     63 
     64 struct dx10_indexable_temp {
     65    unsigned index;
     66    unsigned count;
     67    unsigned components;
     68 };
     69 
     70 struct dx10_global_flags {
     71    unsigned refactoring_allowed:1;
     72 };
     73 
     74 struct Shader_relative_index {
     75    unsigned imm;
     76 };
     77 
     78 struct Shader_relative_operand {
     79    D3D10_SB_OPERAND_TYPE type;
     80    struct Shader_relative_index index[2];
     81    D3D10_SB_4_COMPONENT_NAME comp;
     82 };
     83 
     84 struct Shader_index {
     85    unsigned imm;
     86    struct Shader_relative_operand rel;
     87    D3D10_SB_OPERAND_INDEX_REPRESENTATION index_rep;
     88 };
     89 
     90 struct Shader_operand {
     91    D3D10_SB_OPERAND_TYPE type;
     92    struct Shader_index index[2];
     93    unsigned index_dim;
     94 };
     95 
     96 struct Shader_dst_operand {
     97    struct Shader_operand base;
     98    unsigned mask;
     99 };
    100 
    101 union Shader_immediate {
    102    float f32;
    103    int i32;
    104    unsigned u32;
    105 };
    106 
    107 struct Shader_src_operand {
    108    struct Shader_operand base;
    109    union Shader_immediate imm[4];
    110    D3D10_SB_4_COMPONENT_NAME swizzle[4];
    111    D3D10_SB_OPERAND_MODIFIER modifier;
    112 };
    113 
    114 #define SHADER_MAX_DST_OPERANDS 2
    115 #define SHADER_MAX_SRC_OPERANDS 5
    116 
    117 struct Shader_opcode {
    118    D3D10_SB_OPCODE_TYPE type;
    119    unsigned num_dst;
    120    unsigned num_src;
    121    struct Shader_dst_operand dst[SHADER_MAX_DST_OPERANDS];
    122    struct Shader_src_operand src[SHADER_MAX_SRC_OPERANDS];
    123 
    124    /* Opcode specific data.
    125     */
    126    union {
    127       D3D10_SB_RESOURCE_DIMENSION dcl_resource_dimension;
    128       D3D10_SB_SAMPLER_MODE dcl_sampler_mode;
    129       D3D10_SB_CONSTANT_BUFFER_ACCESS_PATTERN dcl_cb_access_pattern;
    130       D3D10_SB_INTERPOLATION_MODE dcl_in_ps_interp;
    131       D3D10_SB_PRIMITIVE_TOPOLOGY dcl_gs_output_primitive_topology;
    132       D3D10_SB_PRIMITIVE dcl_gs_input_primitive;
    133       D3D10_SB_INSTRUCTION_TEST_BOOLEAN test_boolean;
    134       D3D10_SB_RESINFO_INSTRUCTION_RETURN_TYPE resinfo_ret_type;
    135       unsigned dcl_max_output_vertex_count;
    136       unsigned dcl_num_temps;
    137       struct dx10_indexable_temp dcl_indexable_temp;
    138       unsigned index_range_count;
    139       struct dx10_global_flags global_flags;
    140    } specific;
    141    D3D10_SB_NAME dcl_siv_name;
    142    D3D10_SB_RESOURCE_RETURN_TYPE dcl_resource_ret_type[4];
    143 
    144    boolean saturate;
    145 
    146    struct {
    147       int u:4;
    148       int v:4;
    149       int w:4;
    150    } imm_texel_offset;
    151 
    152    struct dx10_customdata customdata;
    153 };
    154 
    155 struct Shader_parser {
    156    const unsigned *code;
    157    const unsigned *curr;
    158 
    159    struct Shader_header header;
    160 };
    161 
    162 void
    163 Shader_parse_init(struct Shader_parser *parser,
    164                        const unsigned *code);
    165 
    166 boolean
    167 Shader_parse_opcode(struct Shader_parser *parser,
    168                          struct Shader_opcode *opcode);
    169 
    170 void
    171 Shader_opcode_free(struct Shader_opcode *opcode);
    172 
    173 
    174 const struct tgsi_token *
    175 Shader_tgsi_translate(const unsigned *code,
    176                       unsigned *output_mapping);
    177 
    178 
    179 #ifdef __cplusplus
    180 }
    181 #endif
    182 
    183 #endif /* SHADER_PARSE_H */
    184