shader_library.h

#pragma once
 
#include "context.h"
#include "shader_program.h"
 
#include "lib_begin.h"
 
namespace cgv {
namespace render {
 
class CGV_API shader_library {
    struct shader_info {
        std::string filename;
        shader_program prog;
        shader_compile_options options;
    };
 
    using shader_lib_map = std::map<std::string, shader_info>;
 
public:
    void clear(context& ctx);
 
    bool add(const std::string& name, const std::string& file, const shader_compile_options& options = {});
 
    bool contains(const std::string& name) const;
 
    shader_program& get(const std::string& name);
 
    shader_define_map& get_defines(const std::string& name);
 
    shader_compile_options& get_compile_options(const std::string& name);
 
    shader_lib_map::iterator begin() { return shaders.begin(); }
    shader_lib_map::iterator end() { return shaders.end(); }
    
    static bool load(context& ctx, shader_program& prog, const std::string& name, const shader_compile_options& options, const std::string& where = "");
 
    static bool load(context& ctx, shader_program& prog, const std::string& name, const std::string& where = "");
 
    bool load_all(context& ctx, const std::string& where = "");
 
    bool reload(context& ctx, const std::string& name, const shader_compile_options& defines = {}, const std::string& where = "");
 
private:
    shader_info& get_shader_info(const std::string& name);
 
    shader_lib_map shaders;
};
 
} // namespace render
} // namespace cgv
 
#include <cgv/config/lib_end.h>