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source: trunk/nv/gl/gl_context.hh @ 523

Last change on this file since 523 was 523, checked in by epyon, 9 years ago
attach depth minor fixes
File size: 5.1 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
18	namespace nv
19	{
20	struct gl_framebuffer_info : public framebuffer_info
21	{
22	unsigned glid;
23	unsigned depth_rb_glid;
24	};
25
26	struct gl_vertex_array_info : public vertex_array_info
27	{
28	unsigned glid;
29	};
30
31
32	class gl_context : public context
33	{
34	public:
35	gl_context( device* a_device, void* a_handle );
36	virtual ~gl_context();
37
38	virtual vertex_array create_vertex_array( const vertex_array_desc& desc );
39	virtual framebuffer create_framebuffer( uint32 temp_samples = 1 );
40	using context::release;
41	virtual void release( vertex_array va );
42	virtual void release( framebuffer f );
43	virtual image_data* dump_image( image_format f, image_data* reuse );
44	virtual const framebuffer_info* get_framebuffer_info( framebuffer f ) const;
45
46	using context::create_texture;
47	virtual texture create_texture( texture_type type, ivec2 size, image_format aformat, sampler asampler, const void* data = nullptr );
48	virtual texture create_texture( texture_type type, ivec3 size, image_format aformat, sampler asampler, const void* data = nullptr );
49
50	virtual buffer create_buffer( buffer_type type, buffer_hint hint, size_t size, const void* source = nullptr );
51	virtual void create_buffer( buffer, size_t, const void* = nullptr );
52
53	virtual void set_draw_buffers( uint32 count, const output_slot* slots );
54	virtual void set_draw_buffer( output_slot slot );
55	virtual void set_read_buffer( output_slot slot );
56	virtual void blit( framebuffer f, buffer_mask mask, ivec2 src1, ivec2 src2, ivec2 dst1, ivec2 dst2 );
57	virtual void blit( framebuffer from, framebuffer to, buffer_mask mask, ivec2 src1, ivec2 src2, ivec2 dst1, ivec2 dst2 );
58
59	virtual void attach( framebuffer f, output_slot slot, texture t, int layer = -1 );
60	virtual void attach( framebuffer f, texture depth, int layer = -1 );
61	virtual void attach( framebuffer f, ivec2 size );
62	virtual void attach_depth( framebuffer source, framebuffer target );
63
64	virtual bool check( framebuffer_slot ft );
65	virtual void bind( framebuffer f, framebuffer_slot ft = FRAMEBUFFER );
66	virtual void bind( texture t, texture_slot slot );
67	virtual void bind( buffer b, uint32 index, size_t offset = 0, size_t size = 0 );
68	virtual void bind( buffer b, texture t );
69
70
71	virtual void update( texture t, const void* data );
72	virtual void update( buffer b, const void* data, size_t offset, size_t size );
73	virtual void* map_buffer( buffer, buffer_access, size_t /offset/, size_t /length/ );
74	virtual void unmap_buffer( buffer );
75
76	// virtual void update( buffer b, uint32 index, const void* data, size_t offset, size_t size );
77
78	virtual void clear( const clear_state& cs );
79	// temporary
80	virtual void draw( primitive prim, const render_state& rs, program p, vertex_array va, size_t count, size_t first = 0 );
81	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 );
82
83	virtual const ivec4& get_viewport();
84	virtual void set_viewport( const ivec4& viewport );
85	virtual void apply_render_state( const render_state& state );
86	virtual void apply_engine_uniforms( program p, const scene_state& s );
87	// TODO: remove
88	void* get_native_handle() { return m_handle; }
89
90	protected:
91	void bind( program p );
92	void bind( vertex_array va );
93	void unbind( program p );
94	// void unbind( buffer b );
95	void unbind( vertex_array va );
96	void unbind( framebuffer va );
97
98	void force_apply_render_state( const render_state& state );
99	void force_apply_stencil_face( unsigned face, const stencil_test_face& stencil );
100	private:
101	void apply_stencil_test( const stencil_test& stencil );
102	void apply_stencil_face( unsigned face, stencil_test_face& stencil, const stencil_test_face& new_stencil );
103	void apply_scissor_test( const scissor_test& scissor );
104	void apply_depth_test( const depth_test& depth );
105	void apply_depth_mask( bool mask );
106	void apply_multisample( bool multisample );
107	void apply_depth_range( const depth_range& range );
108	void apply_color_mask( const color_mask& mask );
109	void apply_blending( const blending& blend );
110	void apply_culling( const culling& cull );
111	void apply_polygon_mode( const polygon_mode& mode );
112	void enable( unsigned int what, bool value );
113	void set_active_texture( texture_slot slot );
114
115	bool validate_program( program p );
116	private:
117	texture_slot m_active_slot;
118	texture m_bound_textures[ texture_slot::MAX_TEXTURES ];
119	program m_bound_program;
120
121	vec4 m_clear_color;
122	float m_clear_depth;
123	int m_clear_stencil;
124	void* m_handle;
125
126	handle_store< gl_vertex_array_info, vertex_array > m_vertex_arrays;
127	handle_store< gl_framebuffer_info, framebuffer > m_framebuffers;
128	};
129
130
131	} // namespace nv
132
133	#endif // NV_CONTEXT_HH

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