1 | /* |
2 | * Copyright (C) 2009-2017 Apple Inc. All rights reserved. |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #pragma once |
27 | |
28 | #include "WebGLSharedObject.h" |
29 | #include <wtf/Forward.h> |
30 | |
31 | namespace WebCore { |
32 | |
33 | class WebGLShader; |
34 | |
35 | class WebGLProgram final : public WebGLSharedObject { |
36 | public: |
37 | static Ref<WebGLProgram> create(WebGLRenderingContextBase&); |
38 | virtual ~WebGLProgram(); |
39 | |
40 | static HashMap<WebGLProgram*, WebGLRenderingContextBase*>& instances(const LockHolder&); |
41 | static Lock& instancesMutex(); |
42 | |
43 | unsigned numActiveAttribLocations(); |
44 | GC3Dint getActiveAttribLocation(GC3Duint index); |
45 | |
46 | bool isUsingVertexAttrib0(); |
47 | |
48 | bool getLinkStatus(); |
49 | void setLinkStatus(bool); |
50 | |
51 | unsigned getLinkCount() const { return m_linkCount; } |
52 | |
53 | // This is to be called everytime after the program is successfully linked. |
54 | // We don't deal with integer overflow here, assuming in reality a program |
55 | // will never be linked so many times. |
56 | // Also, we invalidate the cached program info. |
57 | void increaseLinkCount(); |
58 | |
59 | WebGLShader* getAttachedShader(GC3Denum); |
60 | bool attachShader(WebGLShader*); |
61 | bool detachShader(WebGLShader*); |
62 | |
63 | protected: |
64 | WebGLProgram(WebGLRenderingContextBase&); |
65 | |
66 | void deleteObjectImpl(GraphicsContext3D*, Platform3DObject) override; |
67 | |
68 | private: |
69 | void cacheActiveAttribLocations(GraphicsContext3D*); |
70 | void cacheInfoIfNeeded(); |
71 | |
72 | Vector<GC3Dint> m_activeAttribLocations; |
73 | |
74 | GC3Dint m_linkStatus { 0 }; |
75 | |
76 | // This is used to track whether a WebGLUniformLocation belongs to this program or not. |
77 | unsigned m_linkCount { 0 }; |
78 | |
79 | RefPtr<WebGLShader> m_vertexShader; |
80 | RefPtr<WebGLShader> m_fragmentShader; |
81 | |
82 | bool m_infoValid { true }; |
83 | }; |
84 | |
85 | } // namespace WebCore |
86 | |