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                 UNIFORM_BLOCK_BINDING = 0,
  22                 TEXTURE_BINDING = 0x1000000
  23         };
  24
  25         typedef unsigned LayoutHash;
  26         struct UniformBlockInfo;
  27
  28         struct UniformInfo
  29         {
  30                 std::string name;
  31                 const UniformBlockInfo *block = 0;
  32                 union
  33                 {
  34                         int location = -1;
  35                         unsigned offset;
  36                 };
  37                 unsigned array_size = 0;
  38                 unsigned array_stride = 0;
  39                 unsigned matrix_stride = 0;
  40                 DataType type = VOID;
  41                 Tag tag;
  42                 int binding = -1;
  43         };
  44
  45         struct UniformBlockInfo
  46         {
  47                 std::string name;
  48                 unsigned data_size = 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         unsigned n_descriptor_sets = 0;
  71         std::vector<int> used_bindings;
  72
  73         void update_layout_hash();
  74         void update_used_bindings();
  75 };
  76
  77 } // namespace GL
  78 } // namespace Msp
  79
  80 #endif