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source: trunk/nv/interface/device.hh @ 515

Last change on this file since 515 was 515, checked in by epyon, 9 years ago
model tag support local transform particle engines fix for 3d textures minor cleanups/fixes
File size: 11.8 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 shader_type
29	{
30	VERTEX_SHADER,
31	FRAGMENT_SHADER
32	};
33
34	enum output_slot
35	{
36	OUTPUT_0 = 0,
37	OUTPUT_1 = 1,
38	OUTPUT_2 = 2,
39	OUTPUT_3 = 3,
40	OUTPUT_4 = 4,
41	OUTPUT_5 = 5,
42	OUTPUT_6 = 6,
43	OUTPUT_7 = 7,
44
45	OUTPUT_NONE = 16,
46	OUTPUT_FRONT = 17,
47	OUTPUT_BACK = 18,
48	};
49
50	enum texture_type
51	{
52	TEXTURE_1D,
53	TEXTURE_2D,
54	TEXTURE_RECT,
55	TEXTURE_3D,
56	TEXTURE_CUBE,
57	TEXTURE_1D_ARRAY,
58	TEXTURE_2D_ARRAY,
59	TEXTURE_1D_BUFFER,
60	TEXTURE_2D_MULTISAMPLE,
61	};
62
63	enum texture_slot
64	{
65	TEXTURE_0 = 0, TEX_DIFFUSE = 0,
66	TEXTURE_1 = 1, TEX_NORMAL = 1,
67	TEXTURE_2 = 2, TEX_METALLIC = 2,
68	TEXTURE_3 = 3, TEX_ROUGHNESS = 3,
69	TEXTURE_4 = 4, TEX_EMISSIVE = 4,
70	TEXTURE_5 = 5, TEX_DEPTH = 5,
71	TEXTURE_6 = 6, TEX_OCCLUSION = 6,
72	TEXTURE_7 = 7, TEX_FINAL = 7,
73	TEXTURE_8 = 8, TEX_CUSTOM_0 = 8,
74	TEXTURE_9 = 9, TEX_CUSTOM_1 = 9,
75	TEXTURE_10 = 10, TEX_CUSTOM_2 = 10,
76	TEXTURE_11 = 11, TEX_CUSTOM_3 = 11,
77	TEXTURE_12 = 12, TEX_CUSTOM_4 = 12,
78	TEXTURE_13 = 13, TEX_CUSTOM_5 = 13,
79	TEXTURE_14 = 14, TEX_CUSTOM_6 = 14,
80	TEXTURE_15 = 15, TEX_CUSTOM_7 = 15,
81	MAX_TEXTURES = 16,
82	};
83
84
85	struct attribute
86	{
87	int location;
88	datatype type;
89	int length;
90	};
91
92	typedef hash_store< shash64, attribute > attribute_map;
93
94	struct texture_tag {};
95	struct buffer_tag {};
96	struct shader_tag {};
97	struct program_tag {};
98
99	typedef handle< uint32, 16, 16, buffer_tag > buffer;
100	typedef handle< uint32, 16, 16, texture_tag > texture;
101	typedef handle< uint32, 16, 16, shader_tag > shader;
102	typedef handle< uint32, 16, 16, program_tag > program;
103
104	NV_RTTI_DECLARE_NAME( buffer, "buffer" )
105	NV_RTTI_DECLARE_NAME( texture, "texture" )
106	NV_RTTI_DECLARE_NAME( shader, "shader" )
107	NV_RTTI_DECLARE_NAME( program, "program" )
108
109	struct sampler
110	{
111	enum filter
112	{
113	LINEAR,
114	NEAREST,
115	NEAREST_MIPMAP_NEAREST,
116	LINEAR_MIPMAP_NEAREST,
117	NEAREST_MIPMAP_LINEAR,
118	LINEAR_MIPMAP_LINEAR
119	};
120	enum wrap
121	{
122	CLAMP_TO_EDGE,
123	CLAMP_TO_BORDER,
124	MIRRORED_REPEAT,
125	REPEAT
126	};
127
128	filter filter_min;
129	filter filter_max;
130	wrap wrap_s;
131	wrap wrap_t;
132	wrap wrap_r;
133
134	sampler() : filter_min( LINEAR ), filter_max( LINEAR ), wrap_s( REPEAT ), wrap_t( REPEAT ), wrap_r( REPEAT ) {}
135	sampler( filter min, filter max, wrap s, wrap t, wrap r )
136	: filter_min( min ), filter_max( max ), wrap_s( s ), wrap_t( t ), wrap_r( r ) {}
137	sampler( filter f, wrap w )
138	: filter_min( f ), filter_max( f ), wrap_s( w ), wrap_t( w ), wrap_r( w )
139	{}
140
141	};
142
143	enum buffer_hint
144	{
145	STATIC_DRAW,
146	STREAM_DRAW,
147	DYNAMIC_DRAW
148	};
149
150	enum buffer_type
151	{
152	VERTEX_BUFFER,
153	INDEX_BUFFER,
154	UNIFORM_BUFFER,
155	TEXTURE_BUFFER,
156	};
157
158	enum buffer_access
159	{
160	WRITE_UNSYNCHRONIZED,
161	};
162
163	struct buffer_info
164	{
165	buffer_type type;
166	buffer_hint hint;
167	size_t size;
168	};
169
170
171	struct texture_info
172	{
173	texture_type type;
174	ivec3 size;
175	image_format format;
176	sampler tsampler;
177	};
178
179	struct vertex_buffer_attribute
180	{
181	buffer vbuffer;
182	datatype dtype;
183	size_t components;
184	size_t offset;
185	size_t stride;
186	slot location;
187	bool owner;
188	};
189
190	struct shader_info
191	{
192	shader_type type;
193	};
194
195	struct program_info
196	{
197	attribute_map* m_attribute_map;
198	uniform_map* m_uniform_map;
199	engine_uniform_list* m_engine_uniforms;
200	};
201
202	class device
203	{
204	friend class context;
205	public:
206	device()
207	{
208	initialize_engine_uniforms();
209	}
210	protected:
211	virtual shader create_shader( shader_type type, string_view sh_source ) = 0;
212	// virtual program create_program( string_view vs_source, string_view fs_source ) = 0;
213	virtual program create_program( shader vs, shader fs ) = 0;
214	virtual buffer create_buffer( buffer_type type, buffer_hint hint ) = 0;
215	virtual texture create_texture( texture_type type, pixel_format format ) = 0;
216
217	// TODO: remove?
218	// virtual texture create_texture( ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr ) { return create_texture( TEXTURE_2D, size, aformat, asampler, data ); }
219	virtual void attach( program p, shader s ) = 0;
220	virtual void detach( program p, shader s ) = 0;
221
222	virtual void release( texture ) = 0;
223	virtual void release( buffer ) = 0;
224	virtual void release( program ) = 0;
225	virtual void release( shader ) = 0;
226	public:
227
228
229	virtual image_data* create_image_data( string_view filename ) = 0; // temporary
230	virtual image_data* create_image_data( const uint8* data, uint32 size ) = 0; // temporary
231	virtual const texture_info* get_texture_info( texture ) const = 0;
232	virtual const buffer_info* get_buffer_info( buffer ) const = 0;
233	virtual string_view get_shader_header() const = 0;
234
235	virtual int get_attribute_location( program p, const string_view& name, bool fatal = true ) const = 0;
236	virtual int get_block_location( program p, const string_view& name, bool fatal = true ) const = 0;
237	virtual bool bind_block( program p, const string_view& name, uint32 index ) = 0;
238
239	virtual ~device()
240	{
241	destroy_engine_uniforms();
242	}
243
244	template < typename T >
245	bool set_uniform_array( program p, const string_view& name, const T* value, uint32 count, bool fatal = true )
246	{
247	uniform_base* base = get_uniform( p, name, fatal );
248	if ( base != nullptr )
249	{
250	if ( base->type_check( type_to_enum<T>::type ) )
251	{
252	// TODO: nicer check
253	NV_ASSERT( static_cast<int>( count ) <= base->get_length(), "LENGTH CHECK FAIL" );
254	static_cast<uniform<T>*>( base )->set_value( value, count );
255	return true;
256	}
257	}
258	return false;
259	}
260
261	template < typename T >
262	bool set_opt_uniform_array( program p, const string_view& name, const T* value, uint32 count )
263	{
264	return set_uniform_array( p, name, value, count, false );
265	}
266
267	template < typename T >
268	bool set_opt_uniform_array( program p, const string_view& name, const array_view<T>& value )
269	{
270	return set_uniform_array( p, name, value.data(), value.size(), false );
271	}
272
273
274	template < typename T >
275	bool set_uniform( program p, const string_view& name, const T& value, bool fatal = true )
276	{
277	uniform_base* base = get_uniform( p, name, fatal );
278	if ( base != nullptr )
279	{
280	if ( base->type_check( type_to_enum<T>::type ) )
281	{
282	static_cast<uniform<T>*>( base )->set_value( value );
283	return true;
284	}
285	}
286	return false;
287	}
288
289	template < typename T >
290	bool set_opt_uniform( program p, const string_view& name, const T& value )
291	{
292	return set_uniform( p, name, value, false );
293	}
294
295	// This is done this way to avoid compilation unit creation
296	static engine_uniform_factory_map& get_uniform_factory()
297	{
298	static engine_uniform_factory_map s_engine_uniform_factory_map;
299	return s_engine_uniform_factory_map;
300	}
301
302	// This is done this way to avoid compilation unit creation
303	static engine_link_uniform_factory_map& get_link_uniform_factory()
304	{
305	static engine_link_uniform_factory_map s_engine_link_uniform_factory_map;
306	return s_engine_link_uniform_factory_map;
307	}
308
309	virtual void prepare_program( program p ) = 0;
310
311	protected:
312
313	virtual uniform_base* get_uniform( program p, const string_view& name, bool fatal = true ) const = 0;
314
315	void initialize_engine_uniforms()
316	{
317	engine_uniform_factory_map& factory_map = get_uniform_factory();
318	factory_map[ "nv_f_near"] = new engine_uniform_factory< engine_uniform_f_near >();
319	factory_map[ "nv_f_far"] = new engine_uniform_factory< engine_uniform_f_far >();
320	factory_map[ "nv_m_view" ] = new engine_uniform_factory< engine_uniform_m_view >();
321	factory_map[ "nv_m_view_inv" ] = new engine_uniform_factory< engine_uniform_m_view_inv >();
322	factory_map[ "nv_m_model" ] = new engine_uniform_factory< engine_uniform_m_model >();
323	factory_map[ "nv_m_model_inv" ] = new engine_uniform_factory< engine_uniform_m_model_inv >();
324	factory_map[ "nv_m_modelview" ] = new engine_uniform_factory< engine_uniform_m_modelview >();
325	factory_map[ "nv_m_modelview_inv" ] = new engine_uniform_factory< engine_uniform_m_modelview_inv >();
326	factory_map[ "nv_m_projection" ] = new engine_uniform_factory< engine_uniform_m_projection >();
327	factory_map[ "nv_m_projection_inv"] = new engine_uniform_factory< engine_uniform_m_projection_inv >();
328	factory_map[ "nv_m_viewprojection" ] = new engine_uniform_factory< engine_uniform_m_viewprojection >();
329	factory_map[ "nv_m_viewprojection_inv" ] = new engine_uniform_factory< engine_uniform_m_viewprojection_inv >();
330	factory_map[ "nv_m_normal" ] = new engine_uniform_factory< engine_uniform_m_normal >();
331	factory_map[ "nv_m_mvp" ] = new engine_uniform_factory< engine_uniform_m_mvp >();
332	factory_map[ "nv_m_mvp_inv"] = new engine_uniform_factory< engine_uniform_m_mvp_inv >();
333	factory_map[ "nv_v_camera_position" ] = new engine_uniform_factory< engine_uniform_v_camera_position >();
334	factory_map[ "nv_v_camera_direction" ] = new engine_uniform_factory< engine_uniform_v_camera_direction >();
335	factory_map[ "nv_v_viewport" ] = new engine_uniform_factory< engine_uniform_v_viewport >();
336	factory_map[ "nv_v_screen_size" ] = new engine_uniform_factory< engine_uniform_v_screen_size >();
337
338	engine_link_uniform_factory_map& factory_link_map = get_link_uniform_factory();
339	factory_link_map[ "nv_texture_0" ] = new engine_link_uniform_int<0>();
340	factory_link_map[ "nv_texture_1" ] = new engine_link_uniform_int<1>();
341	factory_link_map[ "nv_texture_2" ] = new engine_link_uniform_int<2>();
342	factory_link_map[ "nv_texture_3" ] = new engine_link_uniform_int<3>();
343	factory_link_map[ "nv_texture_4" ] = new engine_link_uniform_int<4>();
344	factory_link_map[ "nv_texture_5" ] = new engine_link_uniform_int<5>();
345	factory_link_map[ "nv_texture_6" ] = new engine_link_uniform_int<6>();
346	factory_link_map[ "nv_texture_7" ] = new engine_link_uniform_int<7>();
347	factory_link_map[ "nv_texture_8" ] = new engine_link_uniform_int<8>();
348	factory_link_map[ "nv_texture_9" ] = new engine_link_uniform_int<9>();
349	factory_link_map[ "nv_t_diffuse" ] = new engine_link_uniform_int<int( TEX_DIFFUSE )>();
350	factory_link_map[ "nv_t_normal" ] = new engine_link_uniform_int<int( TEX_NORMAL )>();
351	factory_link_map[ "nv_t_metallic" ] = new engine_link_uniform_int<int( TEX_METALLIC )>();
352	factory_link_map[ "nv_t_roughness"] = new engine_link_uniform_int<int( TEX_ROUGHNESS )>();
353	factory_link_map[ "nv_t_emissive" ] = new engine_link_uniform_int<int( TEX_EMISSIVE )>();
354	factory_link_map[ "nv_t_depth" ] = new engine_link_uniform_int<int( TEX_DEPTH )>();
355	factory_link_map[ "nv_t_occlusion"] = new engine_link_uniform_int<int( TEX_OCCLUSION )>();
356	factory_link_map[ "nv_t_final" ] = new engine_link_uniform_int<int( TEX_FINAL )>();
357	}
358	void destroy_engine_uniforms()
359	{
360	for ( auto& i : get_uniform_factory() ) delete i.second;
361	for ( auto& i : get_link_uniform_factory() ) delete i.second;
362	get_uniform_factory().clear();
363	get_link_uniform_factory().clear();
364	}
365
366	};
367
368	} // namespace nv
369
370
371	#endif // NV_INTERFACE_DEVICE_HH

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