1 #ifndef MSP_GL_PROGRAM_H_
2 #define MSP_GL_PROGRAM_H_
7 #include <msp/datafile/objectloader.h>
9 #include "program_backend.h"
10 #include "reflectdata.h"
16 A shader program consisting of one or more stages.
18 Programs are created from Modules. Specialization values can be applied to
19 customize behaviour of the module.
21 class Program: public ProgramBackend
23 friend ProgramBackend;
26 class Loader: public DataFile::CollectionObjectLoader<Program>
29 Loader(Program &, Collection &);
32 void module(const std::string &);
36 class SpecializationLoader: public DataFile::Loader
39 std::map<std::string, int> &spec_values;
41 static ActionMap shared_actions;
44 SpecializationLoader(std::map<std::string, int> &);
47 virtual void init_actions();
49 void specialize_bool(const std::string &, bool);
50 void specialize_int(const std::string &, int);
53 ReflectData reflect_data;
54 SpirVModule *specialized_spirv = 0;
57 /// Constructs an empty Program with no shader stages attached.
60 /// Constructs a Program from a Module, with specialization constants.
61 Program(const Module &, const std::map<std::string, int> & = std::map<std::string, int>());
66 void add_stages(const Module &, const std::map<std::string, int> & = std::map<std::string, int>());
68 void collect_uniforms(const SpirVModule &);
69 void collect_block_uniforms(const SpirVModule::Structure &, const std::string &, unsigned, std::vector<std::string> &);
70 void collect_attributes(const SpirVModule &);
71 void collect_builtins(const SpirVModule &);
72 void collect_builtins(const SpirVModule::Structure &);
75 ReflectData::LayoutHash get_uniform_layout_hash() const { return reflect_data.layout_hash; }
76 unsigned get_n_descriptor_sets() const { return reflect_data.n_descriptor_sets; }
77 unsigned get_push_constants_size() const { return reflect_data.push_constants_size; }
78 const std::vector<ReflectData::UniformBlockInfo> &get_uniform_blocks() const { return reflect_data.uniform_blocks; }
79 const ReflectData::UniformBlockInfo &get_uniform_block_info(const std::string &) const;
80 const std::vector<ReflectData::UniformInfo> &get_uniforms() const { return reflect_data.uniforms; }
81 const ReflectData::UniformInfo &get_uniform_info(const std::string &) const;
82 const ReflectData::UniformInfo &get_uniform_info(Tag) const;
83 int get_uniform_location(const std::string &) const;
84 int get_uniform_location(Tag) const;
85 int get_uniform_binding(Tag) const;
86 bool uses_uniform_block_binding(int b) const { return uses_binding(b|ReflectData::UNIFORM_BLOCK_BINDING); }
87 bool uses_texture_binding(unsigned b) const { return uses_binding(b|ReflectData::TEXTURE_BINDING); }
89 bool uses_binding(int) const;
91 const std::vector<ReflectData::AttributeInfo> &get_attributes() const { return reflect_data.attributes; }
92 const ReflectData::AttributeInfo &get_attribute_info(const std::string &) const;
93 int get_attribute_location(const std::string &) const;
94 unsigned get_n_clip_distances() const { return reflect_data.n_clip_distances; }
96 using ProgramBackend::set_debug_name;