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source: trunk/nv/interface/device.hh @ 323

Last change on this file since 323 was 323, checked in by epyon, 11 years ago
nova now compiles again under all three compilers with -Winsane and no warnings
File size: 8.2 KB

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1	// Copyright (C) 2012-2014 ChaosForge Ltd
2	// http://chaosforge.org/
3	//
4	// This file is part of NV Libraries.
5	// For conditions of distribution and use, see copyright notice in nv.hh
6	/**
7	* @file device.hh
8	* @author Kornel Kisielewicz epyon@chaosforge.org
9	* @brief Device class
10	*/
11
12	#ifndef NV_DEVICE_HH
13	#define NV_DEVICE_HH
14
15	#include <nv/core/common.hh>
16	#include <nv/core/string.hh>
17	#include <nv/core/handle.hh>
18	#include <nv/interface/uniform.hh>
19	#include <nv/interface/mesh_data.hh>
20	#include <nv/interface/image_data.hh>
21
22	namespace nv
23	{
24	class window;
25
26	enum texture_slot
27	{
28	TEX_DIFFUSE = 0,
29	TEX_SPECULAR = 1,
30	TEX_NORMAL = 2,
31	TEXTURE_0 = 0,
32	TEXTURE_1 = 1,
33	TEXTURE_2 = 2,
34	TEXTURE_3 = 3,
35	TEXTURE_4 = 4,
36	TEXTURE_5 = 5,
37	TEXTURE_6 = 6,
38	TEXTURE_7 = 7,
39	};
40
41
42	struct attribute
43	{
44	string name;
45	int location;
46	datatype type;
47	int length;
48	};
49
50	typedef std::unordered_map< string, attribute > attribute_map;
51
52	struct texture_tag {};
53	struct buffer_tag {};
54	struct program_tag {};
55	typedef handle< uint32, 16, 16, buffer_tag > buffer;
56	typedef handle< uint32, 16, 16, texture_tag > texture;
57	typedef handle< uint32, 16, 16, program_tag > program;
58
59	struct sampler
60	{
61	enum filter
62	{
63	LINEAR,
64	NEAREST,
65	NEAREST_MIPMAP_NEAREST,
66	LINEAR_MIPMAP_NEAREST,
67	NEAREST_MIPMAP_LINEAR,
68	LINEAR_MIPMAP_LINEAR
69	};
70	enum wrap
71	{
72	CLAMP_TO_EDGE,
73	CLAMP_TO_BORDER,
74	MIRRORED_REPEAT,
75	REPEAT
76	};
77
78	filter filter_min;
79	filter filter_max;
80	wrap wrap_s;
81	wrap wrap_t;
82
83	sampler() : filter_min( LINEAR ), filter_max( LINEAR ), wrap_s( REPEAT ), wrap_t( REPEAT ) {}
84	sampler( filter min, filter max, wrap s, wrap t )
85	: filter_min( min ), filter_max( max ), wrap_s( s ), wrap_t( t ) {}
86	sampler( filter f, wrap w )
87	: filter_min( f ), filter_max( f ), wrap_s( w ), wrap_t( w ) {}
88
89	};
90
91	struct buffer_info
92	{
93	buffer_type type;
94	buffer_hint hint;
95	size_t size;
96	};
97
98
99	struct texture_info
100	{
101	ivec2 size;
102	image_format format;
103	sampler tsampler;
104	};
105
106	struct vertex_buffer_attribute
107	{
108	buffer vbuffer;
109	datatype dtype;
110	size_t components;
111	size_t offset;
112	size_t stride;
113	slot location;
114	bool owner;
115	};
116
117	struct program_info
118	{
119	attribute_map m_attribute_map;
120	uniform_map m_uniform_map;
121	engine_uniform_list m_engine_uniforms;
122	};
123
124	class device
125	{
126	friend class context;
127	public:
128	device()
129	{
130	initialize_engine_uniforms();
131	}
132	virtual window* create_window( uint16 width, uint16 height, bool fullscreen ) = 0;
133	virtual window* adopt_window( void* sys_w_handle, void* sys_dc ) = 0;
134	virtual program create_program( const string& vs_source, const string& fs_source ) = 0;
135	virtual buffer create_buffer( buffer_type type, buffer_hint hint, size_t size, const void* source = nullptr ) = 0;
136	virtual image_data* create_image_data( const std::string& filename ) = 0; // temporary
137	virtual texture create_texture( ivec2 size, image_format aformat, sampler asampler, void* data = nullptr ) = 0;
138	virtual void release( texture ) = 0;
139	virtual void release( buffer ) = 0;
140	virtual void release( program ) = 0;
141	virtual const texture_info* get_texture_info( texture ) const = 0;
142	virtual const buffer_info* get_buffer_info( buffer ) const = 0;
143	virtual uint32 get_ticks() = 0;
144	virtual void delay( uint32 ms ) = 0;
145	virtual const string& get_shader_header() const = 0;
146
147	virtual texture create_texture( image_data* data, sampler asampler )
148	{
149	return create_texture( data->get_size(), data->get_format(), asampler, (void*)data->get_data() );
150	}
151
152	int try_get_attribute_location( program p, const string& name ) const
153	{
154	return get_attribute_location( p, name, false );
155	}
156
157	virtual int get_attribute_location( program p, const string& name, bool fatal = true ) const = 0;
158
159	template < typename T >
160	void set_uniform_array( program p, const string& name, const T* value, uint32 count, bool fatal = true )
161	{
162	uniform_base* base = get_uniform( p, name, fatal );
163	if ( base != nullptr )
164	{
165	if ( base->type_check( type_to_enum<T>::type ) )
166	{
167	// TODO: nicer check
168	NV_ASSERT( (int)count <= base->get_length(), "LENGTH CHECK FAIL" );
169	((uniform<T>*)( base ))->set_value( value, count );
170	}
171	}
172	}
173
174	template < typename T >
175	void set_opt_uniform_array( program p, const string& name, const T* value, uint32 count )
176	{
177	set_uniform_array( p, name, value, count, false );
178	}
179
180	template < typename T >
181	void set_opt_uniform_array( program p, const string& name, const std::vector<T>& value )
182	{
183	set_uniform_array( p, name, (const T*)value.data(), value.size(), false );
184	}
185
186
187	template < typename T >
188	void set_uniform( program p, const string& name, const T& value, bool fatal = true )
189	{
190	uniform_base* base = get_uniform( p, name, fatal );
191	if ( base != nullptr )
192	{
193	if ( base->type_check( type_to_enum<T>::type ) )
194	{
195	((uniform<T>*)( base ))->set_value( value );
196	}
197	}
198	}
199
200	template < typename T >
201	void set_opt_uniform( program p, const string& name, const T& value )
202	{
203	set_uniform( p, name, value, false );
204	}
205
206	virtual ~device()
207	{
208	destroy_engine_uniforms();
209	}
210
211	// This is done this way to avoid compilation unit creation
212	static engine_uniform_factory_map& get_uniform_factory()
213	{
214	static engine_uniform_factory_map s_engine_uniform_factory_map;
215	return s_engine_uniform_factory_map;
216	}
217
218	// This is done this way to avoid compilation unit creation
219	static engine_link_uniform_factory_map& get_link_uniform_factory()
220	{
221	static engine_link_uniform_factory_map s_engine_link_uniform_factory_map;
222	return s_engine_link_uniform_factory_map;
223	}
224
225	virtual void prepare_program( program p ) = 0;
226
227	protected:
228	virtual uniform_base* get_uniform( program p, const string& name, bool fatal = true ) const = 0;
229
230	void initialize_engine_uniforms()
231	{
232	engine_uniform_factory_map& factory_map = get_uniform_factory();
233	factory_map[ "nv_m_view" ] = new engine_uniform_factory< engine_uniform_m_view >();
234	factory_map[ "nv_m_view_inv" ] = new engine_uniform_factory< engine_uniform_m_view_inv >();
235	factory_map[ "nv_m_model" ] = new engine_uniform_factory< engine_uniform_m_model >();
236	factory_map[ "nv_m_model_inv" ] = new engine_uniform_factory< engine_uniform_m_model_inv >();
237	factory_map[ "nv_m_modelview" ] = new engine_uniform_factory< engine_uniform_m_modelview >();
238	factory_map[ "nv_m_projection" ] = new engine_uniform_factory< engine_uniform_m_projection >();
239	factory_map[ "nv_m_normal" ] = new engine_uniform_factory< engine_uniform_m_normal >();
240	factory_map[ "nv_m_mvp" ] = new engine_uniform_factory< engine_uniform_m_mvp >();
241	factory_map[ "nv_v_camera_position" ] = new engine_uniform_factory< engine_uniform_v_camera_position >();
242	factory_map[ "nv_v_camera_direction" ] = new engine_uniform_factory< engine_uniform_v_camera_direction >();
243
244	engine_link_uniform_factory_map& factory_link_map = get_link_uniform_factory();
245	factory_link_map[ "nv_texture_0" ] = new engine_link_uniform_int<0>();
246	factory_link_map[ "nv_texture_1" ] = new engine_link_uniform_int<1>();
247	factory_link_map[ "nv_texture_2" ] = new engine_link_uniform_int<2>();
248	factory_link_map[ "nv_texture_3" ] = new engine_link_uniform_int<3>();
249	factory_link_map[ "nv_texture_4" ] = new engine_link_uniform_int<4>();
250	factory_link_map[ "nv_texture_5" ] = new engine_link_uniform_int<5>();
251	factory_link_map[ "nv_texture_6" ] = new engine_link_uniform_int<6>();
252	factory_link_map[ "nv_texture_7" ] = new engine_link_uniform_int<7>();
253	factory_link_map[ "nv_t_diffuse" ] = new engine_link_uniform_int<0>();
254	factory_link_map[ "nv_t_specular"] = new engine_link_uniform_int<1>();
255	factory_link_map[ "nv_t_normal" ] = new engine_link_uniform_int<2>();
256	}
257	void destroy_engine_uniforms()
258	{
259	for ( auto& i : get_uniform_factory() ) delete i.second;
260	for ( auto& i : get_link_uniform_factory() ) delete i.second;
261	get_uniform_factory().clear();
262	get_link_uniform_factory().clear();
263	}
264
265	};
266
267	} // namespace nv
268
269
270	#endif // NV_DEVICE_HH

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