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source: trunk/nv/gl/gl_context.hh @ 530

Last change on this file since 530 was 530, checked in by epyon, 8 years ago
handle split to index_table.hh handle_manager.hh and handle_store.hh
File size: 5.2 KB

Line
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 gl_context.hh
9	* @author Kornel Kisielewicz epyon@chaosforge.org
10	* @brief Context class
11	*/
12
13	#ifndef NV_GL_CONTEXT_HH
14	#define NV_GL_CONTEXT_HH
15
16	#include <nv/interface/context.hh>
17	#include <nv/stl/handle_store.hh>
18
19	namespace nv
20	{
21	struct gl_framebuffer_info : public framebuffer_info
22	{
23	unsigned glid;
24	unsigned depth_rb_glid;
25	};
26
27	struct gl_vertex_array_info : public vertex_array_info
28	{
29	unsigned glid;
30	};
31
32
33	class gl_context : public context
34	{
35	public:
36	gl_context( device* a_device, void* a_handle );
37	virtual ~gl_context();
38
39	virtual vertex_array create_vertex_array( const vertex_array_desc& desc );
40	virtual framebuffer create_framebuffer( uint32 temp_samples = 1 );
41	using context::release;
42	virtual void release( vertex_array va );
43	virtual void release( framebuffer f );
44	virtual image_data* dump_image( image_format f, image_data* reuse );
45	virtual const framebuffer_info* get_framebuffer_info( framebuffer f ) const;
46
47	using context::create_texture;
48	virtual texture create_texture( texture_type type, ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr );
49	virtual texture create_texture( texture_type type, ivec3 size, image_format aformat, sampler asampler, const void* data = nullptr );
50
51	virtual buffer create_buffer( buffer_type type, buffer_hint hint, size_t size, const void* source = nullptr );
52	virtual void create_buffer( buffer, size_t, const void* = nullptr );
53
54	virtual void set_draw_buffers( uint32 count, const output_slot* slots );
55	virtual void set_draw_buffer( output_slot slot );
56	virtual void set_read_buffer( output_slot slot );
57	virtual void blit( framebuffer f, buffer_mask mask, ivec2 src1, ivec2 src2, ivec2 dst1, ivec2 dst2 );
58	virtual void blit( framebuffer from, framebuffer to, buffer_mask mask, ivec2 src1, ivec2 src2, ivec2 dst1, ivec2 dst2 );
59
60	virtual void attach( framebuffer f, output_slot slot, texture t, int layer = -1 );
61	virtual void attach( framebuffer f, texture depth, int layer = -1 );
62	virtual void attach( framebuffer f, ivec2 size );
63	virtual void attach_depth( framebuffer source, framebuffer target );
64
65	virtual bool check( framebuffer_slot ft );
66	virtual void bind( framebuffer f, framebuffer_slot ft = FRAMEBUFFER );
67	virtual void bind( texture t, texture_slot slot );
68	virtual void bind( buffer b, uint32 index, size_t offset = 0, size_t size = 0 );
69	virtual void bind( buffer b, texture t );
70
71
72	virtual void update( texture t, const void* data );
73	virtual void update( buffer b, const void* data, size_t offset, size_t size );
74	virtual void* map_buffer( buffer, buffer_access, size_t /offset/, size_t /length/ );
75	virtual void unmap_buffer( buffer );
76
77	// virtual void update( buffer b, uint32 index, const void* data, size_t offset, size_t size );
78
79	virtual void clear( const clear_state& cs );
80	// temporary
81	virtual void draw( primitive prim, const render_state& rs, program p, vertex_array va, size_t count, size_t first = 0 );
82	virtual void draw_instanced( primitive prim, const render_state& rs, program p, size_t instances, vertex_array va, size_t count, size_t first = 0 );
83
84	virtual const ivec4& get_viewport();
85	virtual void set_viewport( const ivec4& viewport );
86	virtual void apply_render_state( const render_state& state );
87	virtual void apply_engine_uniforms( program p, const scene_state& s );
88	// TODO: remove
89	void* get_native_handle() { return m_handle; }
90
91	protected:
92	void bind( program p );
93	void bind( vertex_array va );
94	void unbind( program p );
95	// void unbind( buffer b );
96	void unbind( vertex_array va );
97	void unbind( framebuffer va );
98
99	void force_apply_render_state( const render_state& state );
100	void force_apply_stencil_face( unsigned face, const stencil_test_face& stencil );
101	private:
102	void apply_stencil_test( const stencil_test& stencil );
103	void apply_stencil_face( unsigned face, stencil_test_face& stencil, const stencil_test_face& new_stencil );
104	void apply_scissor_test( const scissor_test& scissor );
105	void apply_depth_test( const depth_test& depth );
106	void apply_depth_mask( bool mask );
107	void apply_multisample( bool multisample );
108	void apply_depth_range( const depth_range& range );
109	void apply_color_mask( const color_mask& mask );
110	void apply_blending( const blending& blend );
111	void apply_culling( const culling& cull );
112	void apply_polygon_mode( const polygon_mode& mode );
113	void enable( unsigned int what, bool value );
114	void set_active_texture( texture_slot slot );
115
116	bool validate_program( program p );
117	private:
118	texture_slot m_active_slot;
119	texture m_bound_textures[ texture_slot::MAX_TEXTURES ];
120	program m_bound_program;
121
122	vec4 m_clear_color;
123	float m_clear_depth;
124	int m_clear_stencil;
125	void* m_handle;
126
127	handle_store< gl_vertex_array_info, vertex_array > m_vertex_arrays;
128	handle_store< gl_framebuffer_info, framebuffer > m_framebuffers;
129	};
130
131
132	} // namespace nv
133
134	#endif // NV_CONTEXT_HH

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