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source: trunk/nv/interface/device.hh @ 473

Last change on this file since 473 was 473, checked in by epyon, 10 years ago
rtti updates device/context initial uniform buffer support fixes
File size: 10.1 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	};
54
55	enum texture_slot
56	{
57	TEX_DIFFUSE = 0,
58	TEX_SPECULAR = 1,
59	TEX_NORMAL = 2,
60	TEX_GLOSS = 3,
61	TEXTURE_0 = 0,
62	TEXTURE_1 = 1,
63	TEXTURE_2 = 2,
64	TEXTURE_3 = 3,
65	TEXTURE_4 = 4,
66	TEXTURE_5 = 5,
67	TEXTURE_6 = 6,
68	TEXTURE_7 = 7,
69	};
70
71
72	struct attribute
73	{
74	int location;
75	datatype type;
76	int length;
77	};
78
79	typedef hash_store< shash64, attribute > attribute_map;
80
81	struct texture_tag {};
82	struct buffer_tag {};
83	struct program_tag {};
84
85	typedef handle< uint32, 16, 16, buffer_tag > buffer;
86	typedef handle< uint32, 16, 16, texture_tag > texture;
87	typedef handle< uint32, 16, 16, program_tag > program;
88
89	NV_RTTI_DECLARE_NAME( buffer, "buffer" )
90	NV_RTTI_DECLARE_NAME( texture, "texture" )
91	NV_RTTI_DECLARE_NAME( program, "program" )
92
93	struct sampler
94	{
95	enum filter
96	{
97	LINEAR,
98	NEAREST,
99	NEAREST_MIPMAP_NEAREST,
100	LINEAR_MIPMAP_NEAREST,
101	NEAREST_MIPMAP_LINEAR,
102	LINEAR_MIPMAP_LINEAR
103	};
104	enum wrap
105	{
106	CLAMP_TO_EDGE,
107	CLAMP_TO_BORDER,
108	MIRRORED_REPEAT,
109	REPEAT
110	};
111
112	filter filter_min;
113	filter filter_max;
114	wrap wrap_s;
115	wrap wrap_t;
116
117	sampler() : filter_min( LINEAR ), filter_max( LINEAR ), wrap_s( REPEAT ), wrap_t( REPEAT ) {}
118	sampler( filter min, filter max, wrap s, wrap t )
119	: filter_min( min ), filter_max( max ), wrap_s( s ), wrap_t( t ) {}
120	sampler( filter f, wrap w )
121	: filter_min( f ), filter_max( f ), wrap_s( w ), wrap_t( w ) {}
122
123	};
124
125	enum buffer_hint
126	{
127	STATIC_DRAW,
128	STREAM_DRAW,
129	DYNAMIC_DRAW
130	};
131
132	enum buffer_type
133	{
134	VERTEX_BUFFER,
135	INDEX_BUFFER,
136	UNIFORM_BUFFER,
137	};
138
139	struct buffer_info
140	{
141	buffer_type type;
142	buffer_hint hint;
143	size_t size;
144	};
145
146
147	struct texture_info
148	{
149	texture_type type;
150	ivec3 size;
151	image_format format;
152	sampler tsampler;
153	};
154
155	struct vertex_buffer_attribute
156	{
157	buffer vbuffer;
158	datatype dtype;
159	size_t components;
160	size_t offset;
161	size_t stride;
162	slot location;
163	bool owner;
164	};
165
166	struct program_info
167	{
168	attribute_map* m_attribute_map;
169	uniform_map* m_uniform_map;
170	engine_uniform_list* m_engine_uniforms;
171	};
172
173	class device
174	{
175	friend class context;
176	public:
177	device()
178	{
179	initialize_engine_uniforms();
180	}
181	virtual program create_program( string_view vs_source, string_view fs_source ) = 0;
182	virtual buffer create_buffer( buffer_type type, buffer_hint hint, size_t size, const void* source = nullptr ) = 0;
183	virtual texture create_texture( texture_type type, ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr ) = 0;
184	virtual texture create_texture( texture_type type, ivec3 size, image_format aformat, sampler asampler, const void* data = nullptr ) = 0;
185	// TODO: remove?
186	virtual texture create_texture( ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr ) { return create_texture( TEXTURE_2D, size, aformat, asampler, data ); }
187	virtual image_data* create_image_data( string_view filename ) = 0; // temporary
188	virtual image_data* create_image_data( const uint8* data, uint32 size ) = 0; // temporary
189	virtual void release( texture ) = 0;
190	virtual void release( buffer ) = 0;
191	virtual void release( program ) = 0;
192	virtual const texture_info* get_texture_info( texture ) const = 0;
193	virtual const buffer_info* get_buffer_info( buffer ) const = 0;
194	virtual string_view get_shader_header() const = 0;
195
196	virtual texture create_texture( image_data* data, sampler asampler )
197	{
198	return create_texture( data->get_size(), data->get_format(), asampler, data->get_data() );
199	}
200
201	int try_get_attribute_location( program p, const string_view& name ) const
202	{
203	return get_attribute_location( p, name, false );
204	}
205
206	int try_get_block_location( program p, const string_view& name ) const
207	{
208	return get_block_location( p, name, false );
209	}
210
211	virtual int get_attribute_location( program p, const string_view& name, bool fatal = true ) const = 0;
212	virtual int get_block_location( program p, const string_view& name, bool fatal = true ) const = 0;
213
214
215	template < typename T >
216	void set_uniform_array( program p, const string_view& name, const T* value, uint32 count, bool fatal = true )
217	{
218	uniform_base* base = get_uniform( p, name, fatal );
219	if ( base != nullptr )
220	{
221	if ( base->type_check( type_to_enum<T>::type ) )
222	{
223	// TODO: nicer check
224	NV_ASSERT( static_cast<int>( count ) <= base->get_length(), "LENGTH CHECK FAIL" );
225	static_cast< uniform<T>* >( base )->set_value( value, count );
226	}
227	}
228	}
229
230	template < typename T >
231	void set_opt_uniform_array( program p, const string_view& name, const T* value, uint32 count )
232	{
233	set_uniform_array( p, name, value, count, false );
234	}
235
236	template < typename T >
237	void set_opt_uniform_array( program p, const string_view& name, const array_view<T>& value )
238	{
239	set_uniform_array( p, name, value.data(), value.size(), false );
240	}
241
242
243	template < typename T >
244	void set_uniform( program p, const string_view& name, const T& value, bool fatal = true )
245	{
246	uniform_base* base = get_uniform( p, name, fatal );
247	if ( base != nullptr )
248	{
249	if ( base->type_check( type_to_enum<T>::type ) )
250	{
251	static_cast< uniform<T>* >( base )->set_value( value );
252	}
253	}
254	}
255
256	template < typename T >
257	void set_opt_uniform( program p, const string_view& name, const T& value )
258	{
259	set_uniform( p, name, value, false );
260	}
261
262	virtual ~device()
263	{
264	destroy_engine_uniforms();
265	}
266
267	// This is done this way to avoid compilation unit creation
268	static engine_uniform_factory_map& get_uniform_factory()
269	{
270	static engine_uniform_factory_map s_engine_uniform_factory_map;
271	return s_engine_uniform_factory_map;
272	}
273
274	// This is done this way to avoid compilation unit creation
275	static engine_link_uniform_factory_map& get_link_uniform_factory()
276	{
277	static engine_link_uniform_factory_map s_engine_link_uniform_factory_map;
278	return s_engine_link_uniform_factory_map;
279	}
280
281	virtual void prepare_program( program p ) = 0;
282
283	protected:
284	virtual uniform_base* get_uniform( program p, const string_view& name, bool fatal = true ) const = 0;
285
286	void initialize_engine_uniforms()
287	{
288	engine_uniform_factory_map& factory_map = get_uniform_factory();
289	factory_map[ "nv_m_view" ] = new engine_uniform_factory< engine_uniform_m_view >();
290	factory_map[ "nv_m_view_inv" ] = new engine_uniform_factory< engine_uniform_m_view_inv >();
291	factory_map[ "nv_m_model" ] = new engine_uniform_factory< engine_uniform_m_model >();
292	factory_map[ "nv_m_model_inv" ] = new engine_uniform_factory< engine_uniform_m_model_inv >();
293	factory_map[ "nv_m_modelview" ] = new engine_uniform_factory< engine_uniform_m_modelview >();
294	factory_map[ "nv_m_modelview_inv" ] = new engine_uniform_factory< engine_uniform_m_modelview_inv >();
295	factory_map[ "nv_m_projection" ] = new engine_uniform_factory< engine_uniform_m_projection >();
296	factory_map[ "nv_m_projection_inv"] = new engine_uniform_factory< engine_uniform_m_projection_inv >();
297	factory_map[ "nv_m_normal" ] = new engine_uniform_factory< engine_uniform_m_normal >();
298	factory_map[ "nv_m_mvp" ] = new engine_uniform_factory< engine_uniform_m_mvp >();
299	factory_map[ "nv_m_mvp_inv"] = new engine_uniform_factory< engine_uniform_m_mvp_inv >();
300	factory_map[ "nv_v_camera_position" ] = new engine_uniform_factory< engine_uniform_v_camera_position >();
301	factory_map[ "nv_v_camera_direction" ] = new engine_uniform_factory< engine_uniform_v_camera_direction >();
302	factory_map[ "nv_v_viewport" ] = new engine_uniform_factory< engine_uniform_v_viewport >();
303	factory_map[ "nv_v_screen_size" ] = new engine_uniform_factory< engine_uniform_v_screen_size >();
304
305	engine_link_uniform_factory_map& factory_link_map = get_link_uniform_factory();
306	factory_link_map[ "nv_texture_0" ] = new engine_link_uniform_int<0>();
307	factory_link_map[ "nv_texture_1" ] = new engine_link_uniform_int<1>();
308	factory_link_map[ "nv_texture_2" ] = new engine_link_uniform_int<2>();
309	factory_link_map[ "nv_texture_3" ] = new engine_link_uniform_int<3>();
310	factory_link_map[ "nv_texture_4" ] = new engine_link_uniform_int<4>();
311	factory_link_map[ "nv_texture_5" ] = new engine_link_uniform_int<5>();
312	factory_link_map[ "nv_texture_6" ] = new engine_link_uniform_int<6>();
313	factory_link_map[ "nv_texture_7" ] = new engine_link_uniform_int<7>();
314	factory_link_map[ "nv_t_diffuse" ] = new engine_link_uniform_int<0>();
315	factory_link_map[ "nv_t_specular"] = new engine_link_uniform_int<1>();
316	factory_link_map[ "nv_t_normal" ] = new engine_link_uniform_int<2>();
317	factory_link_map[ "nv_t_gloss" ] = new engine_link_uniform_int<3>();
318	}
319	void destroy_engine_uniforms()
320	{
321	for ( auto& i : get_uniform_factory() ) delete i.second;
322	for ( auto& i : get_link_uniform_factory() ) delete i.second;
323	get_uniform_factory().clear();
324	get_link_uniform_factory().clear();
325	}
326
327	};
328
329	} // namespace nv
330
331
332	#endif // NV_INTERFACE_DEVICE_HH

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