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source: trunk/nv/interface/device.hh @ 472

Last change on this file since 472 was 472, checked in by epyon, 10 years ago
additional uniforms R16F and R32F format support error fixes (clang)
File size: 9.7 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	typedef handle< uint32, 16, 16, buffer_tag > buffer;
85	typedef handle< uint32, 16, 16, texture_tag > texture;
86	typedef handle< uint32, 16, 16, program_tag > program;
87
88	struct sampler
89	{
90	enum filter
91	{
92	LINEAR,
93	NEAREST,
94	NEAREST_MIPMAP_NEAREST,
95	LINEAR_MIPMAP_NEAREST,
96	NEAREST_MIPMAP_LINEAR,
97	LINEAR_MIPMAP_LINEAR
98	};
99	enum wrap
100	{
101	CLAMP_TO_EDGE,
102	CLAMP_TO_BORDER,
103	MIRRORED_REPEAT,
104	REPEAT
105	};
106
107	filter filter_min;
108	filter filter_max;
109	wrap wrap_s;
110	wrap wrap_t;
111
112	sampler() : filter_min( LINEAR ), filter_max( LINEAR ), wrap_s( REPEAT ), wrap_t( REPEAT ) {}
113	sampler( filter min, filter max, wrap s, wrap t )
114	: filter_min( min ), filter_max( max ), wrap_s( s ), wrap_t( t ) {}
115	sampler( filter f, wrap w )
116	: filter_min( f ), filter_max( f ), wrap_s( w ), wrap_t( w ) {}
117
118	};
119
120	enum buffer_hint
121	{
122	STATIC_DRAW,
123	STREAM_DRAW,
124	DYNAMIC_DRAW
125	};
126
127	enum buffer_type
128	{
129	VERTEX_BUFFER,
130	INDEX_BUFFER,
131	};
132
133	struct buffer_info
134	{
135	buffer_type type;
136	buffer_hint hint;
137	size_t size;
138	};
139
140
141	struct texture_info
142	{
143	texture_type type;
144	ivec3 size;
145	image_format format;
146	sampler tsampler;
147	};
148
149	struct vertex_buffer_attribute
150	{
151	buffer vbuffer;
152	datatype dtype;
153	size_t components;
154	size_t offset;
155	size_t stride;
156	slot location;
157	bool owner;
158	};
159
160	struct program_info
161	{
162	attribute_map* m_attribute_map;
163	uniform_map* m_uniform_map;
164	engine_uniform_list* m_engine_uniforms;
165	};
166
167	class device
168	{
169	friend class context;
170	public:
171	device()
172	{
173	initialize_engine_uniforms();
174	}
175	virtual program create_program( string_view vs_source, string_view fs_source ) = 0;
176	virtual buffer create_buffer( buffer_type type, buffer_hint hint, size_t size, const void* source = nullptr ) = 0;
177	virtual texture create_texture( texture_type type, ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr ) = 0;
178	virtual texture create_texture( texture_type type, ivec3 size, image_format aformat, sampler asampler, const void* data = nullptr ) = 0;
179	// TODO: remove?
180	virtual texture create_texture( ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr ) { return create_texture( TEXTURE_2D, size, aformat, asampler, data ); }
181	virtual image_data* create_image_data( string_view filename ) = 0; // temporary
182	virtual image_data* create_image_data( const uint8* data, uint32 size ) = 0; // temporary
183	virtual void release( texture ) = 0;
184	virtual void release( buffer ) = 0;
185	virtual void release( program ) = 0;
186	virtual const texture_info* get_texture_info( texture ) const = 0;
187	virtual const buffer_info* get_buffer_info( buffer ) const = 0;
188	virtual string_view get_shader_header() const = 0;
189
190	virtual texture create_texture( image_data* data, sampler asampler )
191	{
192	return create_texture( data->get_size(), data->get_format(), asampler, data->get_data() );
193	}
194
195	int try_get_attribute_location( program p, const string_view& name ) const
196	{
197	return get_attribute_location( p, name, false );
198	}
199
200	virtual int get_attribute_location( program p, const string_view& name, bool fatal = true ) const = 0;
201
202	template < typename T >
203	void set_uniform_array( program p, const string_view& name, const T* value, uint32 count, bool fatal = true )
204	{
205	uniform_base* base = get_uniform( p, name, fatal );
206	if ( base != nullptr )
207	{
208	if ( base->type_check( type_to_enum<T>::type ) )
209	{
210	// TODO: nicer check
211	NV_ASSERT( static_cast<int>( count ) <= base->get_length(), "LENGTH CHECK FAIL" );
212	static_cast< uniform<T>* >( base )->set_value( value, count );
213	}
214	}
215	}
216
217	template < typename T >
218	void set_opt_uniform_array( program p, const string_view& name, const T* value, uint32 count )
219	{
220	set_uniform_array( p, name, value, count, false );
221	}
222
223	template < typename T >
224	void set_opt_uniform_array( program p, const string_view& name, const array_view<T>& value )
225	{
226	set_uniform_array( p, name, value.data(), value.size(), false );
227	}
228
229
230	template < typename T >
231	void set_uniform( program p, const string_view& name, const T& value, bool fatal = true )
232	{
233	uniform_base* base = get_uniform( p, name, fatal );
234	if ( base != nullptr )
235	{
236	if ( base->type_check( type_to_enum<T>::type ) )
237	{
238	static_cast< uniform<T>* >( base )->set_value( value );
239	}
240	}
241	}
242
243	template < typename T >
244	void set_opt_uniform( program p, const string_view& name, const T& value )
245	{
246	set_uniform( p, name, value, false );
247	}
248
249	virtual ~device()
250	{
251	destroy_engine_uniforms();
252	}
253
254	// This is done this way to avoid compilation unit creation
255	static engine_uniform_factory_map& get_uniform_factory()
256	{
257	static engine_uniform_factory_map s_engine_uniform_factory_map;
258	return s_engine_uniform_factory_map;
259	}
260
261	// This is done this way to avoid compilation unit creation
262	static engine_link_uniform_factory_map& get_link_uniform_factory()
263	{
264	static engine_link_uniform_factory_map s_engine_link_uniform_factory_map;
265	return s_engine_link_uniform_factory_map;
266	}
267
268	virtual void prepare_program( program p ) = 0;
269
270	protected:
271	virtual uniform_base* get_uniform( program p, const string_view& name, bool fatal = true ) const = 0;
272
273	void initialize_engine_uniforms()
274	{
275	engine_uniform_factory_map& factory_map = get_uniform_factory();
276	factory_map[ "nv_m_view" ] = new engine_uniform_factory< engine_uniform_m_view >();
277	factory_map[ "nv_m_view_inv" ] = new engine_uniform_factory< engine_uniform_m_view_inv >();
278	factory_map[ "nv_m_model" ] = new engine_uniform_factory< engine_uniform_m_model >();
279	factory_map[ "nv_m_model_inv" ] = new engine_uniform_factory< engine_uniform_m_model_inv >();
280	factory_map[ "nv_m_modelview" ] = new engine_uniform_factory< engine_uniform_m_modelview >();
281	factory_map[ "nv_m_modelview_inv" ] = new engine_uniform_factory< engine_uniform_m_modelview_inv >();
282	factory_map[ "nv_m_projection" ] = new engine_uniform_factory< engine_uniform_m_projection >();
283	factory_map[ "nv_m_projection_inv"] = new engine_uniform_factory< engine_uniform_m_projection_inv >();
284	factory_map[ "nv_m_normal" ] = new engine_uniform_factory< engine_uniform_m_normal >();
285	factory_map[ "nv_m_mvp" ] = new engine_uniform_factory< engine_uniform_m_mvp >();
286	factory_map[ "nv_m_mvp_inv"] = new engine_uniform_factory< engine_uniform_m_mvp_inv >();
287	factory_map[ "nv_v_camera_position" ] = new engine_uniform_factory< engine_uniform_v_camera_position >();
288	factory_map[ "nv_v_camera_direction" ] = new engine_uniform_factory< engine_uniform_v_camera_direction >();
289	factory_map[ "nv_v_viewport" ] = new engine_uniform_factory< engine_uniform_v_viewport >();
290	factory_map[ "nv_v_screen_size" ] = new engine_uniform_factory< engine_uniform_v_screen_size >();
291
292	engine_link_uniform_factory_map& factory_link_map = get_link_uniform_factory();
293	factory_link_map[ "nv_texture_0" ] = new engine_link_uniform_int<0>();
294	factory_link_map[ "nv_texture_1" ] = new engine_link_uniform_int<1>();
295	factory_link_map[ "nv_texture_2" ] = new engine_link_uniform_int<2>();
296	factory_link_map[ "nv_texture_3" ] = new engine_link_uniform_int<3>();
297	factory_link_map[ "nv_texture_4" ] = new engine_link_uniform_int<4>();
298	factory_link_map[ "nv_texture_5" ] = new engine_link_uniform_int<5>();
299	factory_link_map[ "nv_texture_6" ] = new engine_link_uniform_int<6>();
300	factory_link_map[ "nv_texture_7" ] = new engine_link_uniform_int<7>();
301	factory_link_map[ "nv_t_diffuse" ] = new engine_link_uniform_int<0>();
302	factory_link_map[ "nv_t_specular"] = new engine_link_uniform_int<1>();
303	factory_link_map[ "nv_t_normal" ] = new engine_link_uniform_int<2>();
304	factory_link_map[ "nv_t_gloss" ] = new engine_link_uniform_int<3>();
305	}
306	void destroy_engine_uniforms()
307	{
308	for ( auto& i : get_uniform_factory() ) delete i.second;
309	for ( auto& i : get_link_uniform_factory() ) delete i.second;
310	get_uniform_factory().clear();
311	get_link_uniform_factory().clear();
312	}
313
314	};
315
316	} // namespace nv
317
318
319	#endif // NV_INTERFACE_DEVICE_HH

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