blend_state.h Source File - ClanLib SDK
Description: blend_state.h Source File

blend_state.h
1/*
2** ClanLib SDK
3** Copyright (c) 1997-2020 The ClanLib Team
4**
5** This software is provided 'as-is', without any express or implied
6** warranty. In no event will the authors be held liable for any damages
7** arising from the use of this software.
8**
9** Permission is granted to anyone to use this software for any purpose,
10** including commercial applications, and to alter it and redistribute it
11** freely, subject to the following restrictions:
12**
13** 1. The origin of this software must not be misrepresented; you must not
14** claim that you wrote the original software. If you use this software
15** in a product, an acknowledgment in the product documentation would be
16** appreciated but is not required.
17** 2. Altered source versions must be plainly marked as such, and must not be
18** misrepresented as being the original software.
19** 3. This notice may not be removed or altered from any source distribution.
20**
21** Note: Some of the libraries ClanLib may link to may have additional
22** requirements or restrictions.
23**
24** File Author(s):
25**
26** Magnus Norddahl
27*/
28
29#pragma once
30
31#include <memory>
32
33namespace clan
34{
37
38 class GraphicContext;
39 class BlendStateDescription;
40 class BlendStateProvider;
41
43 class BlendState
44 {
45 public:
47 BlendState();
48
53 BlendState(GraphicContext &context, const BlendStateDescription &desc);
54
56 bool is_null() const { return !provider; }
57 explicit operator bool() const { return bool(provider); }
58
59 BlendStateProvider *get_provider() const;
60
61 private:
62 std::shared_ptr<BlendStateProvider> provider;
63 };
64
66}
clan::BlendStateDescription
Blend state description.
Definition blend_state_description.h:42
clan::BlendStateProvider
Definition graphic_context_provider.h:73
clan::BlendState
Blend state setup.
Definition blend_state.h:44
clan::BlendState::get_provider
BlendStateProvider * get_provider() const
clan::BlendState::BlendState
BlendState()
Constructs a null instance.
clan::BlendState::is_null
bool is_null() const
Returns true if this object is invalid.
Definition blend_state.h:56
clan::BlendState::BlendState
BlendState(GraphicContext &context, const BlendStateDescription &desc)
Constructs a Texture.
clan::GraphicContext
Interface to drawing graphics.
Definition graphic_context.h:257
clan
Definition clanapp.h:36