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source: trunk/nv/interface/device.hh @ 491

Last change on this file since 491 was 491, checked in by epyon, 9 years ago
mass update (will try to do atomic from now)
File size: 11.2 KB

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1	// Copyright (C) 2012-2015 ChaosForge Ltd
2	// http://chaosforge.org/
3	//
4	// This file is part of Nova libraries.
5	// For conditions of distribution and use, see copying.txt file in root folder.
6
7	/**
8	* @file device.hh
9	* @author Kornel Kisielewicz epyon@chaosforge.org
10	* @brief Device class
11	*/
12
13	#ifndef NV_INTERFACE_DEVICE_HH
14	#define NV_INTERFACE_DEVICE_HH
15
16	#include <nv/common.hh>
17	#include <nv/stl/string.hh>
18	#include <nv/stl/handle.hh>
19	#include <nv/stl/hash_store.hh>
20	#include <nv/interface/uniform.hh>
21	#include <nv/interface/mesh_data.hh>
22	#include <nv/interface/image_data.hh>
23
24	namespace nv
25	{
26	class window;
27
28	enum output_slot
29	{
30	OUTPUT_0 = 0,
31	OUTPUT_1 = 1,
32	OUTPUT_2 = 2,
33	OUTPUT_3 = 3,
34	OUTPUT_4 = 4,
35	OUTPUT_5 = 5,
36	OUTPUT_6 = 6,
37	OUTPUT_7 = 7,
38
39	OUTPUT_NONE = 16,
40	OUTPUT_FRONT = 17,
41	OUTPUT_BACK = 18,
42	};
43
44	enum texture_type
45	{
46	TEXTURE_1D,
47	TEXTURE_2D,
48	TEXTURE_RECT,
49	TEXTURE_3D,
50	TEXTURE_CUBE,
51	TEXTURE_1D_ARRAY,
52	TEXTURE_2D_ARRAY,
53	TEXTURE_1D_BUFFER,
54	};
55
56	enum texture_slot
57	{
58	TEX_DIFFUSE = 0,
59	TEX_NORMAL = 1,
60	TEX_METALLIC = 2,
61	TEX_SPECULAR = 2, // obsolete
62	TEX_ROUGHNESS = 3,
63	TEX_GLOSS = 3, // obsolete
64	TEX_EMISSIVE = 4,
65	TEXTURE_0 = 0,
66	TEXTURE_1 = 1,
67	TEXTURE_2 = 2,
68	TEXTURE_3 = 3,
69	TEXTURE_4 = 4,
70	TEXTURE_5 = 5,
71	TEXTURE_6 = 6,
72	TEXTURE_7 = 7,
73	TEXTURE_8 = 8,
74	TEXTURE_9 = 9,
75	TEXTURE_10 = 10,
76	TEXTURE_11 = 11,
77	TEXTURE_12 = 12,
78	TEXTURE_13 = 13,
79	TEXTURE_14 = 14,
80	TEXTURE_15 = 15,
81	};
82
83
84	struct attribute
85	{
86	int location;
87	datatype type;
88	int length;
89	};
90
91	typedef hash_store< shash64, attribute > attribute_map;
92
93	struct texture_tag {};
94	struct buffer_tag {};
95	struct program_tag {};
96
97	typedef handle< uint32, 16, 16, buffer_tag > buffer;
98	typedef handle< uint32, 16, 16, texture_tag > texture;
99	typedef handle< uint32, 16, 16, program_tag > program;
100
101	NV_RTTI_DECLARE_NAME( buffer, "buffer" )
102	NV_RTTI_DECLARE_NAME( texture, "texture" )
103	NV_RTTI_DECLARE_NAME( program, "program" )
104
105	struct sampler
106	{
107	enum filter
108	{
109	LINEAR,
110	NEAREST,
111	NEAREST_MIPMAP_NEAREST,
112	LINEAR_MIPMAP_NEAREST,
113	NEAREST_MIPMAP_LINEAR,
114	LINEAR_MIPMAP_LINEAR
115	};
116	enum wrap
117	{
118	CLAMP_TO_EDGE,
119	CLAMP_TO_BORDER,
120	MIRRORED_REPEAT,
121	REPEAT
122	};
123
124	filter filter_min;
125	filter filter_max;
126	wrap wrap_s;
127	wrap wrap_t;
128
129	sampler() : filter_min( LINEAR ), filter_max( LINEAR ), wrap_s( REPEAT ), wrap_t( REPEAT ) {}
130	sampler( filter min, filter max, wrap s, wrap t )
131	: filter_min( min ), filter_max( max ), wrap_s( s ), wrap_t( t ) {}
132	sampler( filter f, wrap w )
133	: filter_min( f ), filter_max( f ), wrap_s( w ), wrap_t( w ) {}
134
135	};
136
137	enum buffer_hint
138	{
139	STATIC_DRAW,
140	STREAM_DRAW,
141	DYNAMIC_DRAW
142	};
143
144	enum buffer_type
145	{
146	VERTEX_BUFFER,
147	INDEX_BUFFER,
148	UNIFORM_BUFFER,
149	TEXTURE_BUFFER,
150	};
151
152	struct buffer_info
153	{
154	buffer_type type;
155	buffer_hint hint;
156	size_t size;
157	};
158
159
160	struct texture_info
161	{
162	texture_type type;
163	ivec3 size;
164	image_format format;
165	sampler tsampler;
166	};
167
168	struct vertex_buffer_attribute
169	{
170	buffer vbuffer;
171	datatype dtype;
172	size_t components;
173	size_t offset;
174	size_t stride;
175	slot location;
176	bool owner;
177	};
178
179	struct program_info
180	{
181	attribute_map* m_attribute_map;
182	uniform_map* m_uniform_map;
183	engine_uniform_list* m_engine_uniforms;
184	};
185
186	class device
187	{
188	friend class context;
189	public:
190	device()
191	{
192	initialize_engine_uniforms();
193	}
194	virtual program create_program( string_view vs_source, string_view fs_source ) = 0;
195	virtual buffer create_buffer( buffer_type type, buffer_hint hint, size_t size, const void* source = nullptr ) = 0;
196	virtual texture create_texture( texture_type type, ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr ) = 0;
197	virtual texture create_texture( texture_type type, ivec3 size, image_format aformat, sampler asampler, const void* data = nullptr ) = 0;
198	virtual texture create_texture( texture_type type, pixel_format format ) = 0;
199
200	// TODO: remove?
201	virtual texture create_texture( ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr ) { return create_texture( TEXTURE_2D, size, aformat, asampler, data ); }
202
203	virtual void create_buffer( buffer, size_t, const void* = nullptr ) = 0;
204
205
206	virtual image_data* create_image_data( string_view filename ) = 0; // temporary
207	virtual image_data* create_image_data( const uint8* data, uint32 size ) = 0; // temporary
208	virtual void release( texture ) = 0;
209	virtual void release( buffer ) = 0;
210	virtual void release( program ) = 0;
211	virtual const texture_info* get_texture_info( texture ) const = 0;
212	virtual const buffer_info* get_buffer_info( buffer ) const = 0;
213	virtual string_view get_shader_header() const = 0;
214
215	virtual texture create_texture( const image_data* data, sampler asampler )
216	{
217	return create_texture( data->get_size(), data->get_format(), asampler, data->get_data() );
218	}
219
220	int try_get_attribute_location( program p, const string_view& name ) const
221	{
222	return get_attribute_location( p, name, false );
223	}
224
225	int try_get_block_location( program p, const string_view& name ) const
226	{
227	return get_block_location( p, name, false );
228	}
229
230	virtual int get_attribute_location( program p, const string_view& name, bool fatal = true ) const = 0;
231	virtual int get_block_location( program p, const string_view& name, bool fatal = true ) const = 0;
232	virtual bool bind_block( program p, const string_view& name, uint32 index ) = 0;
233
234	template < typename T >
235	void set_uniform_array( program p, const string_view& name, const T* value, uint32 count, bool fatal = true )
236	{
237	uniform_base* base = get_uniform( p, name, fatal );
238	if ( base != nullptr )
239	{
240	if ( base->type_check( type_to_enum<T>::type ) )
241	{
242	// TODO: nicer check
243	NV_ASSERT( static_cast<int>( count ) <= base->get_length(), "LENGTH CHECK FAIL" );
244	static_cast< uniform<T>* >( base )->set_value( value, count );
245	}
246	}
247	}
248
249	template < typename T >
250	void set_opt_uniform_array( program p, const string_view& name, const T* value, uint32 count )
251	{
252	set_uniform_array( p, name, value, count, false );
253	}
254
255	template < typename T >
256	void set_opt_uniform_array( program p, const string_view& name, const array_view<T>& value )
257	{
258	set_uniform_array( p, name, value.data(), value.size(), false );
259	}
260
261
262	template < typename T >
263	void set_uniform( program p, const string_view& name, const T& value, bool fatal = true )
264	{
265	uniform_base* base = get_uniform( p, name, fatal );
266	if ( base != nullptr )
267	{
268	if ( base->type_check( type_to_enum<T>::type ) )
269	{
270	static_cast< uniform<T>* >( base )->set_value( value );
271	}
272	}
273	}
274
275	template < typename T >
276	void set_opt_uniform( program p, const string_view& name, const T& value )
277	{
278	set_uniform( p, name, value, false );
279	}
280
281	virtual ~device()
282	{
283	destroy_engine_uniforms();
284	}
285
286	// This is done this way to avoid compilation unit creation
287	static engine_uniform_factory_map& get_uniform_factory()
288	{
289	static engine_uniform_factory_map s_engine_uniform_factory_map;
290	return s_engine_uniform_factory_map;
291	}
292
293	// This is done this way to avoid compilation unit creation
294	static engine_link_uniform_factory_map& get_link_uniform_factory()
295	{
296	static engine_link_uniform_factory_map s_engine_link_uniform_factory_map;
297	return s_engine_link_uniform_factory_map;
298	}
299
300	virtual void prepare_program( program p ) = 0;
301
302	protected:
303	virtual uniform_base* get_uniform( program p, const string_view& name, bool fatal = true ) const = 0;
304
305	void initialize_engine_uniforms()
306	{
307	engine_uniform_factory_map& factory_map = get_uniform_factory();
308	factory_map[ "nv_f_near"] = new engine_uniform_factory< engine_uniform_f_near >();
309	factory_map[ "nv_f_far"] = new engine_uniform_factory< engine_uniform_f_far >();
310	factory_map[ "nv_m_view" ] = new engine_uniform_factory< engine_uniform_m_view >();
311	factory_map[ "nv_m_view_inv" ] = new engine_uniform_factory< engine_uniform_m_view_inv >();
312	factory_map[ "nv_m_model" ] = new engine_uniform_factory< engine_uniform_m_model >();
313	factory_map[ "nv_m_model_inv" ] = new engine_uniform_factory< engine_uniform_m_model_inv >();
314	factory_map[ "nv_m_modelview" ] = new engine_uniform_factory< engine_uniform_m_modelview >();
315	factory_map[ "nv_m_modelview_inv" ] = new engine_uniform_factory< engine_uniform_m_modelview_inv >();
316	factory_map[ "nv_m_projection" ] = new engine_uniform_factory< engine_uniform_m_projection >();
317	factory_map[ "nv_m_projection_inv"] = new engine_uniform_factory< engine_uniform_m_projection_inv >();
318	factory_map[ "nv_m_normal" ] = new engine_uniform_factory< engine_uniform_m_normal >();
319	factory_map[ "nv_m_mvp" ] = new engine_uniform_factory< engine_uniform_m_mvp >();
320	factory_map[ "nv_m_mvp_inv"] = new engine_uniform_factory< engine_uniform_m_mvp_inv >();
321	factory_map[ "nv_v_camera_position" ] = new engine_uniform_factory< engine_uniform_v_camera_position >();
322	factory_map[ "nv_v_camera_direction" ] = new engine_uniform_factory< engine_uniform_v_camera_direction >();
323	factory_map[ "nv_v_viewport" ] = new engine_uniform_factory< engine_uniform_v_viewport >();
324	factory_map[ "nv_v_screen_size" ] = new engine_uniform_factory< engine_uniform_v_screen_size >();
325
326	engine_link_uniform_factory_map& factory_link_map = get_link_uniform_factory();
327	factory_link_map[ "nv_texture_0" ] = new engine_link_uniform_int<0>();
328	factory_link_map[ "nv_texture_1" ] = new engine_link_uniform_int<1>();
329	factory_link_map[ "nv_texture_2" ] = new engine_link_uniform_int<2>();
330	factory_link_map[ "nv_texture_3" ] = new engine_link_uniform_int<3>();
331	factory_link_map[ "nv_texture_4" ] = new engine_link_uniform_int<4>();
332	factory_link_map[ "nv_texture_5" ] = new engine_link_uniform_int<5>();
333	factory_link_map[ "nv_texture_6" ] = new engine_link_uniform_int<6>();
334	factory_link_map[ "nv_texture_7" ] = new engine_link_uniform_int<7>();
335	factory_link_map[ "nv_t_diffuse" ] = new engine_link_uniform_int<int( TEX_DIFFUSE )>();
336	factory_link_map[ "nv_t_normal" ] = new engine_link_uniform_int<int( TEX_NORMAL )>();
337	factory_link_map[ "nv_t_metallic" ] = new engine_link_uniform_int<int( TEX_METALLIC )>();
338	factory_link_map[ "nv_t_specular" ] = new engine_link_uniform_int<int( TEX_METALLIC )>();
339	factory_link_map[ "nv_t_roughness"] = new engine_link_uniform_int<int( TEX_ROUGHNESS )>();
340	factory_link_map[ "nv_t_gloss" ] = new engine_link_uniform_int<int( TEX_ROUGHNESS )>();
341	factory_link_map[ "nv_t_emissive" ] = new engine_link_uniform_int<int( TEX_EMISSIVE )>();
342	}
343	void destroy_engine_uniforms()
344	{
345	for ( auto& i : get_uniform_factory() ) delete i.second;
346	for ( auto& i : get_link_uniform_factory() ) delete i.second;
347	get_uniform_factory().clear();
348	get_link_uniform_factory().clear();
349	}
350
351	};
352
353	} // namespace nv
354
355
356	#endif // NV_INTERFACE_DEVICE_HH

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