X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fmaterial.h;h=571f4cb027c4da3a41e8d317e1e4c042603a2706;hp=b0c9cd0d3510c2e2d76612bea410f8b13670423a;hb=bec07999d95b76f4b47cffcc564d0cd0afc0435e;hpb=530ace590ddb8024fbffc944d006aae7876a25f9 diff --git a/source/material.h b/source/material.h index b0c9cd0d..571f4cb0 100644 --- a/source/material.h +++ b/source/material.h @@ -1,64 +1,206 @@ -/* $Id$ - -This file is part of libmspgl -Copyright © 2007 Mikko Rasa, Mikkosoft Productions -Distributed under the LGPL -*/ - #ifndef MSP_GL_MATERIAL_H_ #define MSP_GL_MATERIAL_H_ -#include +#include +#include +#include #include "color.h" +#include "programdata.h" +#include "texture.h" namespace Msp { namespace GL { -/** -Stores OpenGL material properties. Since OpenGL does not support material -objects, application of material is done with several calls to glMaterial. -*/ +class Texturing; + class Material { +private: + class Loader: public DataFile::CollectionObjectLoader + { + protected: + Loader(Material &); + Loader(Material &, Collection &); + + virtual void init_actions(); + + private: + void sampler(const std::string &); + }; + +protected: + template + struct Property + { + T value; + const Texture *texture; + + Property(): value(T()), texture(0) { } + }; + + template + class PropertyLoader: public DataFile::DerivedObjectLoader + { + protected: + PropertyLoader(C &m): DerivedObjectLoader(m) { } + PropertyLoader(C &m, Collection &c): DerivedObjectLoader(m, c) { } + + void add_property(const std::string &, void (C::*)(float), void (C::*)(const Texture *)); + void add_property(const std::string &, void (C::*)(const Color &), void (C::*)(const Texture *), bool); + void add_property(const std::string &, void (C::*)(const Texture *)); + + void property_value_scalar(void (C::*)(float), float); + void property_value_rgb(void (C::*)(const Color &), float, float, float); + void property_value_rgba(void (C::*)(const Color &), float, float, float, float); + void property_value_srgb(void (C::*)(const Color &), float, float, float); + void property_value_srgb_alpha(void (C::*)(const Color &), float, float, float, float); + void property_texture(void (C::*)(const Texture *), const std::string &); + }; + public: - class Loader: public DataFile::Loader + class GenericLoader: public DataFile::Loader { private: - Material &mat; + template + struct AddType + { + static void add(GenericLoader &ldr, const std::string &kw) { ldr.add(kw, &GenericLoader::typed_material); } + }; + + DataFile::Collection *coll; + RefPtr material; + + static ActionMap shared_actions; public: - Loader(Material &); - Material &get_object() const { return mat; } - + GenericLoader(DataFile::Collection * = 0); + + Material *get_material() { return material.release(); } private: - void ambient(float, float, float, float); - void diffuse(float, float, float, float); - void specular(float, float, float, float); - void emission(float, float, float, float); + virtual void init_actions(); + + template + void typed_material(); + + friend class Material; }; private: - Color ambient; - Color diffuse; - Color specular; - Color emission; - float shininess; + typedef DataFile::LoadableTypeRegistry MaterialRegistry; + +protected: + const Sampler *sampler; + ProgramData shdata; + + Material(): sampler(0) { } +public: + virtual ~Material() { } + + virtual Program *create_compatible_shader() const; + virtual const Program *create_compatible_shader(DataFile::Collection &) const; +protected: + virtual std::string create_program_source() const = 0; public: - Material(); - void set_ambient(const Color &a); - void set_diffuse(const Color &d); - void set_specular(const Color &s); - void set_emission(const Color &e); - void set_shininess(float s); - const Color &get_ambient() const { return ambient; } - const Color &get_diffuse() const { return diffuse; } - const Color &get_specular() const { return specular; } - const Color &get_emission() const { return emission; } - float get_shininess() const { return shininess; } - void apply() const; + /** Returns the uniforms for the material. */ + const ProgramData &get_shader_data() const { return shdata; } + +protected: + void attach_texture_to(const Texture *, Texturing &, ProgramData &, const std::string &) const; +public: + virtual void attach_textures_to(Texturing &, ProgramData &) const = 0; + + template + static void register_type(const std::string &); +private: + static MaterialRegistry &get_material_registry(); }; +template +void Material::register_type(const std::string &kw) +{ + get_material_registry().register_type(kw); +} + + +template +void Material::PropertyLoader::add_property(const std::string &kw, void (C::*set_value)(float), void (C::*set_texture)(const Texture *)) +{ + add(kw, &PropertyLoader::property_value_scalar, set_value); + add(kw+"_map", &PropertyLoader::property_texture, set_texture); +} + +template +void Material::PropertyLoader::add_property(const std::string &kw, void (C::*set_value)(const Color &), void (C::*set_texture)(const Texture *), bool allow_alpha) +{ + add(kw, &PropertyLoader::property_value_rgb, set_value); + add(kw+"_srgb", &PropertyLoader::property_value_srgb, set_value); + if(allow_alpha) + { + add(kw, &PropertyLoader::property_value_rgba, set_value); + add(kw+"_srgb", &PropertyLoader::property_value_srgb_alpha, set_value); + } + add(kw+"_map", &PropertyLoader::property_texture, set_texture); +} + +template +void Material::PropertyLoader::add_property(const std::string &kw, void (C::*set_texture)(const Texture *)) +{ + add(kw+"_map", &PropertyLoader::property_texture, set_texture); +} + +template +void Material::PropertyLoader::property_value_scalar(void (C::*set_value)(float), float value) +{ + (static_cast(obj).*set_value)(value); +} + +template +void Material::PropertyLoader::property_value_rgb(void (C::*set_value)(const Color &), float r, float g, float b) +{ + (static_cast(obj).*set_value)(Color(r, g, b)); +} + +template +void Material::PropertyLoader::property_value_rgba(void (C::*set_value)(const Color &), float r, float g, float b, float a) +{ + (static_cast(obj).*set_value)(Color(r, g, b, a)); +} + +template +void Material::PropertyLoader::property_value_srgb(void (C::*set_value)(const Color &), float r, float g, float b) +{ + (static_cast(obj).*set_value)(Color(r, g, b).to_linear()); +} + +template +void Material::PropertyLoader::property_value_srgb_alpha(void (C::*set_value)(const Color &), float r, float g, float b, float a) +{ + (static_cast(obj).*set_value)(Color(r, g, b, a).to_linear()); +} + +template +void Material::PropertyLoader::property_texture(void (C::*set_texture)(const Texture *), const std::string &name) +{ + /* The static_cast around get_collection is needed because otherwise Android + SDK's g++ 4.9 fails to parse get as a template function call */ + (static_cast(obj).*set_texture)(&static_cast(get_collection()).get(name)); +} + + +template +void Material::GenericLoader::typed_material() +{ + if(material) + throw std::logic_error("Material was already loaded"); + RefPtr mat = new T; + if(coll) + load_sub(*mat, *coll); + else + load_sub(*mat); + material = mat; +} + } // namespace GL } // namespace Msp