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source: trunk/nv/interface/device.hh @ 412

Last change on this file since 412 was 412, checked in by epyon, 10 years ago
refactoring of raw_data_channel and data_descriptor access
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
[412]	124	enum buffer_type
	125	{
	126	VERTEX_BUFFER,
	127	INDEX_BUFFER,
	128	};
	129
[302]	130	struct buffer_info
	131	{
	132	buffer_type type;
	133	buffer_hint hint;
	134	size_t size;
	135	};
	136
	137
[301]	138	struct texture_info
	139	{
[331]	140	texture_type type;
[301]	141	ivec2 size;
	142	image_format format;
[323]	143	sampler tsampler;
[301]	144	};
	145
[302]	146	struct vertex_buffer_attribute
	147	{
	148	buffer vbuffer;
	149	datatype dtype;
	150	size_t components;
	151	size_t offset;
	152	size_t stride;
	153	slot location;
	154	bool owner;
	155	};
[301]	156
[303]	157	struct program_info
	158	{
[392]	159	attribute_map* m_attribute_map;
	160	uniform_map* m_uniform_map;
	161	engine_uniform_list* m_engine_uniforms;
[303]	162	};
	163
[32]	164	class device
	165	{
[302]	166	friend class context;
[32]	167	public:
[303]	168	device()
	169	{
	170	initialize_engine_uniforms();
	171	}
[399]	172	virtual program create_program( string_view vs_source, string_view fs_source ) = 0;
[302]	173	virtual buffer create_buffer( buffer_type type, buffer_hint hint, size_t size, const void* source = nullptr ) = 0;
[406]	174	virtual texture create_texture( texture_type type, ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr ) = 0;
[331]	175	// TODO: remove?
[406]	176	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]	177	virtual image_data* create_image_data( string_view filename ) = 0; // temporary
[350]	178	virtual image_data* create_image_data( const uint8* data, uint32 size ) = 0; // temporary
[302]	179	virtual void release( texture ) = 0;
	180	virtual void release( buffer ) = 0;
[303]	181	virtual void release( program ) = 0;
	182	virtual const texture_info* get_texture_info( texture ) const = 0;
	183	virtual const buffer_info* get_buffer_info( buffer ) const = 0;
[379]	184	virtual const std::string& get_shader_header() const = 0;
[303]	185
[301]	186	virtual texture create_texture( image_data* data, sampler asampler )
[292]	187	{
[406]	188	return create_texture( data->get_size(), data->get_format(), asampler, data->get_data() );
[292]	189	}
	190
[379]	191	int try_get_attribute_location( program p, const std::string& name ) const
[303]	192	{
	193	return get_attribute_location( p, name, false );
	194	}
[238]	195
[379]	196	virtual int get_attribute_location( program p, const std::string& name, bool fatal = true ) const = 0;
[303]	197
	198	template < typename T >
[379]	199	void set_uniform_array( program p, const std::string& name, const T* value, uint32 count, bool fatal = true )
[303]	200	{
	201	uniform_base* base = get_uniform( p, name, fatal );
	202	if ( base != nullptr )
	203	{
	204	if ( base->type_check( type_to_enum<T>::type ) )
	205	{
	206	// TODO: nicer check
[406]	207	NV_ASSERT( static_cast<int>( count ) <= base->get_length(), "LENGTH CHECK FAIL" );
	208	static_cast< uniform<T>* >( base )->set_value( value, count );
[303]	209	}
	210	}
	211	}
	212
	213	template < typename T >
[379]	214	void set_opt_uniform_array( program p, const std::string& name, const T* value, uint32 count )
[303]	215	{
	216	set_uniform_array( p, name, value, count, false );
	217	}
	218
	219	template < typename T >
[399]	220	void set_opt_uniform_array( program p, const std::string& name, const array_view<T>& value )
[303]	221	{
[406]	222	set_uniform_array( p, name, value.data(), value.size(), false );
[303]	223	}
	224
	225
	226	template < typename T >
[379]	227	void set_uniform( program p, const std::string& name, const T& value, bool fatal = true )
[303]	228	{
	229	uniform_base* base = get_uniform( p, name, fatal );
	230	if ( base != nullptr )
	231	{
	232	if ( base->type_check( type_to_enum<T>::type ) )
	233	{
[406]	234	static_cast< uniform<T>* >( base )->set_value( value );
[303]	235	}
	236	}
	237	}
	238
	239	template < typename T >
[379]	240	void set_opt_uniform( program p, const std::string& name, const T& value )
[303]	241	{
	242	set_uniform( p, name, value, false );
	243	}
	244
[302]	245	virtual ~device()
	246	{
[303]	247	destroy_engine_uniforms();
[302]	248	}
[303]	249
	250	// This is done this way to avoid compilation unit creation
	251	static engine_uniform_factory_map& get_uniform_factory()
	252	{
	253	static engine_uniform_factory_map s_engine_uniform_factory_map;
	254	return s_engine_uniform_factory_map;
	255	}
	256
	257	// This is done this way to avoid compilation unit creation
	258	static engine_link_uniform_factory_map& get_link_uniform_factory()
	259	{
	260	static engine_link_uniform_factory_map s_engine_link_uniform_factory_map;
	261	return s_engine_link_uniform_factory_map;
	262	}
	263
	264	virtual void prepare_program( program p ) = 0;
	265
[302]	266	protected:
[379]	267	virtual uniform_base* get_uniform( program p, const std::string& name, bool fatal = true ) const = 0;
[303]	268
	269	void initialize_engine_uniforms()
	270	{
	271	engine_uniform_factory_map& factory_map = get_uniform_factory();
	272	factory_map[ "nv_m_view" ] = new engine_uniform_factory< engine_uniform_m_view >();
	273	factory_map[ "nv_m_view_inv" ] = new engine_uniform_factory< engine_uniform_m_view_inv >();
	274	factory_map[ "nv_m_model" ] = new engine_uniform_factory< engine_uniform_m_model >();
	275	factory_map[ "nv_m_model_inv" ] = new engine_uniform_factory< engine_uniform_m_model_inv >();
	276	factory_map[ "nv_m_modelview" ] = new engine_uniform_factory< engine_uniform_m_modelview >();
	277	factory_map[ "nv_m_projection" ] = new engine_uniform_factory< engine_uniform_m_projection >();
	278	factory_map[ "nv_m_normal" ] = new engine_uniform_factory< engine_uniform_m_normal >();
	279	factory_map[ "nv_m_mvp" ] = new engine_uniform_factory< engine_uniform_m_mvp >();
	280	factory_map[ "nv_v_camera_position" ] = new engine_uniform_factory< engine_uniform_v_camera_position >();
	281	factory_map[ "nv_v_camera_direction" ] = new engine_uniform_factory< engine_uniform_v_camera_direction >();
[342]	282	factory_map[ "nv_v_viewport" ] = new engine_uniform_factory< engine_uniform_v_viewport >();
	283	factory_map[ "nv_v_screen_size" ] = new engine_uniform_factory< engine_uniform_v_screen_size >();
[303]	284
	285	engine_link_uniform_factory_map& factory_link_map = get_link_uniform_factory();
	286	factory_link_map[ "nv_texture_0" ] = new engine_link_uniform_int<0>();
	287	factory_link_map[ "nv_texture_1" ] = new engine_link_uniform_int<1>();
	288	factory_link_map[ "nv_texture_2" ] = new engine_link_uniform_int<2>();
	289	factory_link_map[ "nv_texture_3" ] = new engine_link_uniform_int<3>();
	290	factory_link_map[ "nv_texture_4" ] = new engine_link_uniform_int<4>();
	291	factory_link_map[ "nv_texture_5" ] = new engine_link_uniform_int<5>();
	292	factory_link_map[ "nv_texture_6" ] = new engine_link_uniform_int<6>();
	293	factory_link_map[ "nv_texture_7" ] = new engine_link_uniform_int<7>();
	294	factory_link_map[ "nv_t_diffuse" ] = new engine_link_uniform_int<0>();
	295	factory_link_map[ "nv_t_specular"] = new engine_link_uniform_int<1>();
	296	factory_link_map[ "nv_t_normal" ] = new engine_link_uniform_int<2>();
	297	}
	298	void destroy_engine_uniforms()
	299	{
	300	for ( auto& i : get_uniform_factory() ) delete i.second;
	301	for ( auto& i : get_link_uniform_factory() ) delete i.second;
	302	get_uniform_factory().clear();
	303	get_link_uniform_factory().clear();
	304	}
	305
[32]	306	};
	307
	308	} // namespace nv
	309
	310
[395]	311	#endif // NV_INTERFACE_DEVICE_HH

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