source/core/reflectdata.h

   1 #ifndef MSP_GL_REFLECTDATA_H_
   2 #define MSP_GL_REFLECTDATA_H_
   3
   4 #include <string>
   5 #include <vector>
   6 #include "datatype.h"
   7 #include "tag.h"
   8
   9 namespace Msp {
  10 namespace GL {
  11
  12 /**
  13 Reflection data for shader programs.
  14 */
  15 struct ReflectData
  16 {
  17         enum
  18         {
  19                 DEFAULT_BLOCK = -1,
  20                 PUSH_CONSTANT = -2
  21         };
  22
  23         typedef unsigned LayoutHash;
  24         struct UniformBlockInfo;
  25
  26         struct UniformInfo
  27         {
  28                 std::string name;
  29                 const UniformBlockInfo *block = 0;
  30                 union
  31                 {
  32                         int location = -1;
  33                         unsigned offset;
  34                 };
  35                 unsigned array_size = 0;
  36                 unsigned array_stride = 0;
  37                 unsigned matrix_stride = 0;
  38                 DataType type = VOID;
  39                 Tag tag;
  40                 int descriptor_set = 0;
  41                 int binding = -1;
  42         };
  43
  44         struct UniformBlockInfo
  45         {
  46                 std::string name;
  47                 unsigned data_size = 0;
  48                 int descriptor_set = 0;
  49                 int bind_point = DEFAULT_BLOCK;
  50                 std::vector<const UniformInfo *> uniforms;
  51                 LayoutHash layout_hash = 0;
  52
  53                 void sort_uniforms();
  54                 void update_layout_hash();
  55         };
  56
  57         struct AttributeInfo
  58         {
  59                 std::string name;
  60                 int location = -1;
  61                 unsigned array_size = 0;
  62                 DataType type = VOID;
  63         };
  64
  65         std::vector<UniformBlockInfo> uniform_blocks;
  66         std::vector<UniformInfo> uniforms;
  67         LayoutHash layout_hash = 0;
  68         std::vector<AttributeInfo> attributes;
  69         unsigned n_clip_distances = 0;
  70
  71         void update_layout_hash();
  72 };
  73
  74 } // namespace GL
  75 } // namespace Msp
  76
  77 #endif