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      1 /*
      2  * Copyright 2010, The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef _COMPILE_SLANG_SLANG_RS_TYPE_SPEC_H_  // NOLINT
     18 #define _COMPILE_SLANG_SLANG_RS_TYPE_SPEC_H_
     19 
     20 #define RS_DATA_TYPE_CLASS_ENUMS            \
     21     ENUM_RS_DATA_TYPE_CLASS(Primitive)      \
     22     ENUM_RS_DATA_TYPE_CLASS(Pointer)        \
     23     ENUM_RS_DATA_TYPE_CLASS(Vector)         \
     24     ENUM_RS_DATA_TYPE_CLASS(Matrix)         \
     25     ENUM_RS_DATA_TYPE_CLASS(ConstantArray)  \
     26     ENUM_RS_DATA_TYPE_CLASS(Record)
     27 
     28 #define PRIMITIVE_DATA_TYPE_ENUMS                         \
     29     ENUM_PRIMITIVE_DATA_TYPE(Float16, NULL, 16)           \
     30     ENUM_PRIMITIVE_DATA_TYPE(Float32, "float", 32)        \
     31     ENUM_PRIMITIVE_DATA_TYPE(Float64, "double", 64)       \
     32     ENUM_PRIMITIVE_DATA_TYPE(Signed8, "char", 8)          \
     33     ENUM_PRIMITIVE_DATA_TYPE(Signed16, "short", 16)       \
     34     ENUM_PRIMITIVE_DATA_TYPE(Signed32, "int", 32)         \
     35     ENUM_PRIMITIVE_DATA_TYPE(Signed64, "long", 64)        \
     36     ENUM_PRIMITIVE_DATA_TYPE(Unsigned8, "uchar", 8)       \
     37     ENUM_PRIMITIVE_DATA_TYPE(Unsigned16, "ushort", 16)    \
     38     ENUM_PRIMITIVE_DATA_TYPE(Unsigned32, "uint", 32)      \
     39     ENUM_PRIMITIVE_DATA_TYPE(Unsigned64, "ulong", 64)     \
     40     ENUM_PRIMITIVE_DATA_TYPE(Boolean, "bool", 8)          \
     41     ENUM_PRIMITIVE_DATA_TYPE(Unsigned565, "u565", 16)     \
     42     ENUM_PRIMITIVE_DATA_TYPE(Unsigned5551, "u5551", 16)   \
     43     ENUM_PRIMITIVE_DATA_TYPE(Unsigned4444, "u4444", 16)   \
     44     PRIMITIVE_DATA_TYPE_RANGE(Float16, Unsigned4444)
     45 
     46 #define RS_MATRIX_DATA_TYPE_ENUMS                             \
     47     ENUM_RS_MATRIX_DATA_TYPE(RSMatrix2x2, "rs_matrix2x2", 2)  \
     48     ENUM_RS_MATRIX_DATA_TYPE(RSMatrix3x3, "rs_matrix3x3", 3)  \
     49     ENUM_RS_MATRIX_DATA_TYPE(RSMatrix4x4, "rs_matrix4x4", 4)  \
     50     RS_MATRIX_DATA_TYPE_RANGE(RSMatrix2x2, RSMatrix4x4)
     51 
     52 #define RS_OBJECT_DATA_TYPE_ENUMS                                       \
     53     ENUM_RS_OBJECT_DATA_TYPE(RSElement, "rs_element")                   \
     54     ENUM_RS_OBJECT_DATA_TYPE(RSType, "rs_type")                         \
     55     ENUM_RS_OBJECT_DATA_TYPE(RSAllocation, "rs_allocation")             \
     56     ENUM_RS_OBJECT_DATA_TYPE(RSSampler, "rs_sampler")                   \
     57     ENUM_RS_OBJECT_DATA_TYPE(RSScript, "rs_script")                     \
     58     ENUM_RS_OBJECT_DATA_TYPE(RSMesh, "rs_mesh")                         \
     59     ENUM_RS_OBJECT_DATA_TYPE(RSPath, "rs_path")                         \
     60     ENUM_RS_OBJECT_DATA_TYPE(RSProgramFragment, "rs_program_fragment")  \
     61     ENUM_RS_OBJECT_DATA_TYPE(RSProgramVertex, "rs_program_vertex")      \
     62     ENUM_RS_OBJECT_DATA_TYPE(RSProgramRaster, "rs_program_raster")      \
     63     ENUM_RS_OBJECT_DATA_TYPE(RSProgramStore, "rs_program_store")        \
     64     ENUM_RS_OBJECT_DATA_TYPE(RSFont, "rs_font")                         \
     65     RS_OBJECT_DATA_TYPE_RANGE(RSElement, RSFont)
     66 
     67 enum RSTypeClass {
     68 #define ENUM_RS_DATA_TYPE_CLASS(x)  RS_TC_ ## x,
     69   RS_DATA_TYPE_CLASS_ENUMS
     70 #undef ENUM_RS_DATA_TYPE_CLASS
     71   RS_TC_Max
     72 };
     73 
     74 enum RSDataType {
     75 #define ENUM_PRIMITIVE_DATA_TYPE(x, name, bits) RS_DT_ ## x,
     76 #define PRIMITIVE_DATA_TYPE_RANGE(x, y) \
     77     RS_DT_FirstPrimitiveType = RS_DT_ ## x, \
     78     RS_DT_LastPrimitiveType = RS_DT_ ## y,
     79   PRIMITIVE_DATA_TYPE_ENUMS
     80 #undef ENUM_PRIMITIVE_DATA_TYPE
     81 #undef PRIMITIVE_DATA_TYPE_RANGE
     82 
     83 #define ENUM_RS_MATRIX_DATA_TYPE(x, name, dim) RS_DT_ ## x,
     84 #define RS_MATRIX_DATA_TYPE_RANGE(x, y) \
     85       RS_DT_FirstMatrixType = RS_DT_ ## x,  \
     86       RS_DT_LastMatrixType = RS_DT_ ## y,
     87   RS_MATRIX_DATA_TYPE_ENUMS
     88 #undef ENUM_RS_MATRIX_DATA_TYPE
     89 #undef RS_MATRIX_DATA_TYPE_RANGE
     90 
     91 #define ENUM_RS_OBJECT_DATA_TYPE(x, name) RS_DT_ ## x,
     92 #define RS_OBJECT_DATA_TYPE_RANGE(x, y) \
     93     RS_DT_FirstRSObjectType = RS_DT_ ## x,  \
     94     RS_DT_LastRSObjectType = RS_DT_ ## y,
     95   RS_OBJECT_DATA_TYPE_ENUMS
     96 #undef ENUM_RS_OBJECT_DATA_TYPE
     97 #undef RS_OBJECT_DATA_TYPE_RANGE
     98 
     99   RS_DT_USER_DEFINED
    100 };
    101 
    102 // Forward declaration
    103 union RSType;
    104 
    105 // NOTE: Current design need to keep struct RSTypeBase as a 4-byte integer for
    106 //       efficient decoding process (see DecodeTypeMetadata).
    107 struct RSTypeBase {
    108   /* enum RSTypeClass tc; */
    109   // tc is encoded in b[0].
    110   union {
    111     // FIXME: handle big-endianess case
    112     unsigned bits;  // NOTE: Little-endian is assumed.
    113     unsigned char b[4];
    114   };
    115 };
    116 
    117 struct RSPrimitiveType {
    118   struct RSTypeBase base;
    119   /* enum RSDataType dt; */
    120   // dt is encoded in base.b[1]
    121 };
    122 
    123 struct RSPointerType {
    124   struct RSTypeBase base;
    125   const union RSType *pointee;
    126 };
    127 
    128 struct RSVectorType {
    129   struct RSPrimitiveType base;  // base type of vec must be in primitive type
    130   /* unsigned char vsize; */
    131   // vsize is encoded in base.b[2]
    132 };
    133 
    134 // RSMatrixType is actually a specialize class of RSPrimitiveType whose value of
    135 // dt (data type) can only be RS_DT_RSMatrix2x2, RS_DT_RSMatrix3x3 and
    136 // RS_DT_RSMatrix4x4.
    137 struct RSMatrixType {
    138   struct RSTypeBase base;
    139 };
    140 
    141 struct RSConstantArrayType {
    142   struct RSTypeBase base;
    143   const union RSType *element_type;
    144   /* unsigned esize; */
    145   // esize is encoded in base.bits{8-31} in little-endian way. This implicates
    146   // the number of elements in any constant array type should never exceed 2^24.
    147 };
    148 
    149 struct RSRecordField {
    150   const char *name;  // field name
    151   const union RSType *type;
    152 };
    153 
    154 struct RSRecordType {
    155   struct RSTypeBase base;
    156   const char *name;  // type name
    157   /* unsigned num_fields; */
    158   // num_fields is encoded in base.bits{16-31} in little-endian way. This
    159   // implicates the number of fields defined in any record type should never
    160   // exceed 2^16.
    161 
    162   struct RSRecordField field[1];
    163 };
    164 
    165 union RSType {
    166   struct RSTypeBase base;
    167   struct RSPrimitiveType prim;
    168   struct RSPointerType pointer;
    169   struct RSVectorType vec;
    170   struct RSConstantArrayType ca;
    171   struct RSRecordType rec;
    172 };
    173 
    174 #define RS_GET_TYPE_BASE(R)               (&((R)->base))
    175 #define RS_CAST_TO_PRIMITIVE_TYPE(R)      (&((R)->prim))
    176 #define RS_CAST_TO_POINTER_TYPE(R)        (&((R)->pointer))
    177 #define RS_CAST_TO_VECTOR_TYPE(R)         (&((R)->vec))
    178 #define RS_CAST_TO_CONSTANT_ARRAY_TYPE(R) (&((R)->ca))
    179 #define RS_CAST_TO_RECORD_TYPE(R)         (&((R)->rec))
    180 
    181 // RSType
    182 #define RS_TYPE_GET_CLASS(R)  RS_GET_TYPE_BASE(R)->b[0]
    183 #define RS_TYPE_SET_CLASS(R, V) RS_TYPE_GET_CLASS(R) = (V)
    184 
    185 // RSPrimitiveType
    186 #define RS_PRIMITIVE_TYPE_GET_DATA_TYPE(R)  \
    187     RS_CAST_TO_PRIMITIVE_TYPE(R)->base.b[1]
    188 #define RS_PRIMITIVE_TYPE_SET_DATA_TYPE(R, V) \
    189     RS_PRIMITIVE_TYPE_GET_DATA_TYPE(R) = (V)
    190 
    191 // RSPointerType
    192 #define RS_POINTER_TYPE_GET_POINTEE_TYPE(R) \
    193     RS_CAST_TO_POINTER_TYPE(R)->pointee
    194 #define RS_POINTER_TYPE_SET_POINTEE_TYPE(R, V) \
    195     RS_POINTER_TYPE_GET_POINTEE_TYPE(R) = (V)
    196 
    197 // RSVectorType
    198 #define RS_VECTOR_TYPE_GET_ELEMENT_TYPE(R) \
    199     RS_PRIMITIVE_TYPE_GET_DATA_TYPE(R)
    200 #define RS_VECTOR_TYPE_SET_ELEMENT_TYPE(R, V) \
    201     RS_VECTOR_TYPE_GET_ELEMENT_TYPE(R) = (V)
    202 
    203 #define RS_VECTOR_TYPE_GET_VECTOR_SIZE(R) \
    204     RS_CAST_TO_VECTOR_TYPE(R)->base.base.b[2]
    205 #define RS_VECTOR_TYPE_SET_VECTOR_SIZE(R, V) \
    206     RS_VECTOR_TYPE_GET_VECTOR_SIZE(R) = (V)
    207 
    208 // RSMatrixType
    209 #define RS_MATRIX_TYPE_GET_DATA_TYPE(R) RS_PRIMITIVE_TYPE_GET_DATA_TYPE(R)
    210 #define RS_MATRIX_TYPE_SET_DATA_TYPE(R, V)  \
    211     RS_MATRIX_TYPE_GET_DATA_TYPE(R) = (V)
    212 
    213 // RSConstantArrayType
    214 #define RS_CONSTANT_ARRAY_TYPE_GET_ELEMENT_TYPE(R) \
    215     RS_CAST_TO_CONSTANT_ARRAY_TYPE(R)->element_type
    216 #define RS_CONSTANT_ARRAY_TYPE_SET_ELEMENT_TYPE(R, V) \
    217     RS_CONSTANT_ARRAY_TYPE_GET_ELEMENT_TYPE(R) = (V)
    218 
    219 #define RS_CONSTANT_ARRAY_TYPE_GET_ELEMENT_SIZE(R)  \
    220     (RS_CAST_TO_CONSTANT_ARRAY_TYPE(R)->base.bits & 0x00ffffff)
    221 #define RS_CONSTANT_ARRAY_TYPE_SET_ELEMENT_SIZE(R, V) \
    222     RS_CAST_TO_CONSTANT_ARRAY_TYPE(R)->base.bits =  \
    223     ((RS_CAST_TO_CONSTANT_ARRAY_TYPE(R)->base.bits & 0x000000ff) |  \
    224      ((V & 0xffffff) << 8))
    225 
    226 // RSRecordType
    227 #define RS_RECORD_TYPE_GET_NAME(R)  RS_CAST_TO_RECORD_TYPE(R)->name
    228 #define RS_RECORD_TYPE_SET_NAME(R, V) RS_RECORD_TYPE_GET_NAME(R) = (V)
    229 
    230 #define RS_RECORD_TYPE_GET_NUM_FIELDS(R)  \
    231     ((RS_CAST_TO_RECORD_TYPE(R)->base.bits & 0xffff0000) >> 16)
    232 #define RS_RECORD_TYPE_SET_NUM_FIELDS(R, V) \
    233     RS_CAST_TO_RECORD_TYPE(R)->base.bits =  \
    234     ((RS_CAST_TO_RECORD_TYPE(R)->base.bits & 0x0000ffff) | ((V & 0xffff) << 16))
    235 
    236 #define RS_RECORD_TYPE_GET_FIELD_NAME(R, I) \
    237     RS_CAST_TO_RECORD_TYPE(R)->field[(I)].name
    238 #define RS_RECORD_TYPE_SET_FIELD_NAME(R, I, V) \
    239     RS_RECORD_TYPE_GET_FIELD_NAME(R, I) = (V)
    240 
    241 #define RS_RECORD_TYPE_GET_FIELD_TYPE(R, I) \
    242     RS_CAST_TO_RECORD_TYPE(R)->field[(I)].type
    243 #define RS_RECORD_TYPE_SET_FIELD_TYPE(R, I, V) \
    244     RS_RECORD_TYPE_GET_FIELD_TYPE(R, I) = (V)
    245 
    246 #endif  // _COMPILE_SLANG_SLANG_RS_TYPE_SPEC_H_  NOLINT
    247