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source: trunk/nv/interface/device.hh @ 410

Last change on this file since 410 was 410, checked in by epyon, 10 years ago
merge of vertex_descriptor and key_descriptor concepts - unified raw data description via data_descriptor minor bugfixes
File size: 9.1 KB

Rev	Line
[395]	1	// Copyright (C) 2012-2015 ChaosForge Ltd
[32]	2	// http://chaosforge.org/
	3	//
[395]	4	// This file is part of Nova libraries.
	5	// For conditions of distribution and use, see copying.txt file in root folder.
	6
[32]	7	/**
	8	* @file device.hh
	9	* @author Kornel Kisielewicz epyon@chaosforge.org
	10	* @brief Device class
	11	*/
	12
[395]	13	#ifndef NV_INTERFACE_DEVICE_HH
	14	#define NV_INTERFACE_DEVICE_HH
[32]	15
[395]	16	#include <nv/common.hh>
[368]	17	#include <nv/stl/string.hh>
	18	#include <nv/stl/handle.hh>
[303]	19	#include <nv/interface/uniform.hh>
[238]	20	#include <nv/interface/mesh_data.hh>
[90]	21	#include <nv/interface/image_data.hh>
[32]	22
	23	namespace nv
	24	{
	25	class window;
	26
[331]	27	enum output_slot
	28	{
	29	OUTPUT_0 = 0,
	30	OUTPUT_1 = 1,
	31	OUTPUT_2 = 2,
	32	OUTPUT_3 = 3,
	33	OUTPUT_4 = 4,
	34	OUTPUT_5 = 5,
	35	OUTPUT_6 = 6,
	36	OUTPUT_7 = 7,
	37
	38	OUTPUT_NONE = 16,
	39	OUTPUT_FRONT = 17,
	40	OUTPUT_BACK = 18,
	41	};
	42
	43	enum texture_type
	44	{
	45	TEXTURE_1D,
	46	TEXTURE_2D,
	47	TEXTURE_RECT,
	48	TEXTURE_3D,
	49	TEXTURE_CUBE,
	50	};
	51
[303]	52	enum texture_slot
	53	{
	54	TEX_DIFFUSE = 0,
	55	TEX_SPECULAR = 1,
	56	TEX_NORMAL = 2,
	57	TEXTURE_0 = 0,
	58	TEXTURE_1 = 1,
	59	TEXTURE_2 = 2,
	60	TEXTURE_3 = 3,
	61	TEXTURE_4 = 4,
	62	TEXTURE_5 = 5,
	63	TEXTURE_6 = 6,
	64	TEXTURE_7 = 7,
	65	};
	66
	67
	68	struct attribute
	69	{
[379]	70	std::string name;
[303]	71	int location;
	72	datatype type;
	73	int length;
	74	};
	75
[392]	76	typedef unordered_map< std::string, attribute > attribute_map;
[303]	77
[302]	78	struct texture_tag {};
	79	struct buffer_tag {};
[303]	80	struct program_tag {};
[302]	81	typedef handle< uint32, 16, 16, buffer_tag > buffer;
	82	typedef handle< uint32, 16, 16, texture_tag > texture;
[303]	83	typedef handle< uint32, 16, 16, program_tag > program;
[302]	84
[301]	85	struct sampler
	86	{
	87	enum filter
	88	{
	89	LINEAR,
	90	NEAREST,
	91	NEAREST_MIPMAP_NEAREST,
	92	LINEAR_MIPMAP_NEAREST,
	93	NEAREST_MIPMAP_LINEAR,
	94	LINEAR_MIPMAP_LINEAR
	95	};
	96	enum wrap
	97	{
	98	CLAMP_TO_EDGE,
	99	CLAMP_TO_BORDER,
	100	MIRRORED_REPEAT,
	101	REPEAT
	102	};
	103
	104	filter filter_min;
	105	filter filter_max;
	106	wrap wrap_s;
	107	wrap wrap_t;
	108
	109	sampler() : filter_min( LINEAR ), filter_max( LINEAR ), wrap_s( REPEAT ), wrap_t( REPEAT ) {}
	110	sampler( filter min, filter max, wrap s, wrap t )
	111	: filter_min( min ), filter_max( max ), wrap_s( s ), wrap_t( t ) {}
	112	sampler( filter f, wrap w )
	113	: filter_min( f ), filter_max( f ), wrap_s( w ), wrap_t( w ) {}
	114
	115	};
	116
[410]	117	enum buffer_hint
	118	{
	119	STATIC_DRAW,
	120	STREAM_DRAW,
	121	DYNAMIC_DRAW
	122	};
	123
[302]	124	struct buffer_info
	125	{
	126	buffer_type type;
	127	buffer_hint hint;
	128	size_t size;
	129	};
	130
	131
[301]	132	struct texture_info
	133	{
[331]	134	texture_type type;
[301]	135	ivec2 size;
	136	image_format format;
[323]	137	sampler tsampler;
[301]	138	};
	139
[302]	140	struct vertex_buffer_attribute
	141	{
	142	buffer vbuffer;
	143	datatype dtype;
	144	size_t components;
	145	size_t offset;
	146	size_t stride;
	147	slot location;
	148	bool owner;
	149	};
[301]	150
[303]	151	struct program_info
	152	{
[392]	153	attribute_map* m_attribute_map;
	154	uniform_map* m_uniform_map;
	155	engine_uniform_list* m_engine_uniforms;
[303]	156	};
	157
[32]	158	class device
	159	{
[302]	160	friend class context;
[32]	161	public:
[303]	162	device()
	163	{
	164	initialize_engine_uniforms();
	165	}
[399]	166	virtual program create_program( string_view vs_source, string_view fs_source ) = 0;
[302]	167	virtual buffer create_buffer( buffer_type type, buffer_hint hint, size_t size, const void* source = nullptr ) = 0;
[406]	168	virtual texture create_texture( texture_type type, ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr ) = 0;
[331]	169	// TODO: remove?
[406]	170	virtual texture create_texture( ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr ) { return create_texture( TEXTURE_2D, size, aformat, asampler, data ); }
[399]	171	virtual image_data* create_image_data( string_view filename ) = 0; // temporary
[350]	172	virtual image_data* create_image_data( const uint8* data, uint32 size ) = 0; // temporary
[302]	173	virtual void release( texture ) = 0;
	174	virtual void release( buffer ) = 0;
[303]	175	virtual void release( program ) = 0;
	176	virtual const texture_info* get_texture_info( texture ) const = 0;
	177	virtual const buffer_info* get_buffer_info( buffer ) const = 0;
[379]	178	virtual const std::string& get_shader_header() const = 0;
[303]	179
[301]	180	virtual texture create_texture( image_data* data, sampler asampler )
[292]	181	{
[406]	182	return create_texture( data->get_size(), data->get_format(), asampler, data->get_data() );
[292]	183	}
	184
[379]	185	int try_get_attribute_location( program p, const std::string& name ) const
[303]	186	{
	187	return get_attribute_location( p, name, false );
	188	}
[238]	189
[379]	190	virtual int get_attribute_location( program p, const std::string& name, bool fatal = true ) const = 0;
[303]	191
	192	template < typename T >
[379]	193	void set_uniform_array( program p, const std::string& name, const T* value, uint32 count, bool fatal = true )
[303]	194	{
	195	uniform_base* base = get_uniform( p, name, fatal );
	196	if ( base != nullptr )
	197	{
	198	if ( base->type_check( type_to_enum<T>::type ) )
	199	{
	200	// TODO: nicer check
[406]	201	NV_ASSERT( static_cast<int>( count ) <= base->get_length(), "LENGTH CHECK FAIL" );
	202	static_cast< uniform<T>* >( base )->set_value( value, count );
[303]	203	}
	204	}
	205	}
	206
	207	template < typename T >
[379]	208	void set_opt_uniform_array( program p, const std::string& name, const T* value, uint32 count )
[303]	209	{
	210	set_uniform_array( p, name, value, count, false );
	211	}
	212
	213	template < typename T >
[399]	214	void set_opt_uniform_array( program p, const std::string& name, const array_view<T>& value )
[303]	215	{
[406]	216	set_uniform_array( p, name, value.data(), value.size(), false );
[303]	217	}
	218
	219
	220	template < typename T >
[379]	221	void set_uniform( program p, const std::string& name, const T& value, bool fatal = true )
[303]	222	{
	223	uniform_base* base = get_uniform( p, name, fatal );
	224	if ( base != nullptr )
	225	{
	226	if ( base->type_check( type_to_enum<T>::type ) )
	227	{
[406]	228	static_cast< uniform<T>* >( base )->set_value( value );
[303]	229	}
	230	}
	231	}
	232
	233	template < typename T >
[379]	234	void set_opt_uniform( program p, const std::string& name, const T& value )
[303]	235	{
	236	set_uniform( p, name, value, false );
	237	}
	238
[302]	239	virtual ~device()
	240	{
[303]	241	destroy_engine_uniforms();
[302]	242	}
[303]	243
	244	// This is done this way to avoid compilation unit creation
	245	static engine_uniform_factory_map& get_uniform_factory()
	246	{
	247	static engine_uniform_factory_map s_engine_uniform_factory_map;
	248	return s_engine_uniform_factory_map;
	249	}
	250
	251	// This is done this way to avoid compilation unit creation
	252	static engine_link_uniform_factory_map& get_link_uniform_factory()
	253	{
	254	static engine_link_uniform_factory_map s_engine_link_uniform_factory_map;
	255	return s_engine_link_uniform_factory_map;
	256	}
	257
	258	virtual void prepare_program( program p ) = 0;
	259
[302]	260	protected:
[379]	261	virtual uniform_base* get_uniform( program p, const std::string& name, bool fatal = true ) const = 0;
[303]	262
	263	void initialize_engine_uniforms()
	264	{
	265	engine_uniform_factory_map& factory_map = get_uniform_factory();
	266	factory_map[ "nv_m_view" ] = new engine_uniform_factory< engine_uniform_m_view >();
	267	factory_map[ "nv_m_view_inv" ] = new engine_uniform_factory< engine_uniform_m_view_inv >();
	268	factory_map[ "nv_m_model" ] = new engine_uniform_factory< engine_uniform_m_model >();
	269	factory_map[ "nv_m_model_inv" ] = new engine_uniform_factory< engine_uniform_m_model_inv >();
	270	factory_map[ "nv_m_modelview" ] = new engine_uniform_factory< engine_uniform_m_modelview >();
	271	factory_map[ "nv_m_projection" ] = new engine_uniform_factory< engine_uniform_m_projection >();
	272	factory_map[ "nv_m_normal" ] = new engine_uniform_factory< engine_uniform_m_normal >();
	273	factory_map[ "nv_m_mvp" ] = new engine_uniform_factory< engine_uniform_m_mvp >();
	274	factory_map[ "nv_v_camera_position" ] = new engine_uniform_factory< engine_uniform_v_camera_position >();
	275	factory_map[ "nv_v_camera_direction" ] = new engine_uniform_factory< engine_uniform_v_camera_direction >();
[342]	276	factory_map[ "nv_v_viewport" ] = new engine_uniform_factory< engine_uniform_v_viewport >();
	277	factory_map[ "nv_v_screen_size" ] = new engine_uniform_factory< engine_uniform_v_screen_size >();
[303]	278
	279	engine_link_uniform_factory_map& factory_link_map = get_link_uniform_factory();
	280	factory_link_map[ "nv_texture_0" ] = new engine_link_uniform_int<0>();
	281	factory_link_map[ "nv_texture_1" ] = new engine_link_uniform_int<1>();
	282	factory_link_map[ "nv_texture_2" ] = new engine_link_uniform_int<2>();
	283	factory_link_map[ "nv_texture_3" ] = new engine_link_uniform_int<3>();
	284	factory_link_map[ "nv_texture_4" ] = new engine_link_uniform_int<4>();
	285	factory_link_map[ "nv_texture_5" ] = new engine_link_uniform_int<5>();
	286	factory_link_map[ "nv_texture_6" ] = new engine_link_uniform_int<6>();
	287	factory_link_map[ "nv_texture_7" ] = new engine_link_uniform_int<7>();
	288	factory_link_map[ "nv_t_diffuse" ] = new engine_link_uniform_int<0>();
	289	factory_link_map[ "nv_t_specular"] = new engine_link_uniform_int<1>();
	290	factory_link_map[ "nv_t_normal" ] = new engine_link_uniform_int<2>();
	291	}
	292	void destroy_engine_uniforms()
	293	{
	294	for ( auto& i : get_uniform_factory() ) delete i.second;
	295	for ( auto& i : get_link_uniform_factory() ) delete i.second;
	296	get_uniform_factory().clear();
	297	get_link_uniform_factory().clear();
	298	}
	299
[32]	300	};
	301
	302	} // namespace nv
	303
	304
[395]	305	#endif // NV_INTERFACE_DEVICE_HH

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