1/*
2 * Copyright (C) 2010 Google 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 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "WebGLRenderingContextBase.h"
29
30namespace WebCore {
31
32class WebGLExtension {
33 WTF_MAKE_FAST_ALLOCATED;
34public:
35 // Extension names are needed to properly wrap instances in JavaScript objects.
36 enum ExtensionName {
37 WebGLLoseContextName,
38 EXTBlendMinMaxName,
39 EXTFragDepthName,
40 EXTShaderTextureLODName,
41 EXTTextureFilterAnisotropicName,
42 EXTsRGBName,
43 OESTextureFloatName,
44 OESTextureFloatLinearName,
45 OESTextureHalfFloatName,
46 OESTextureHalfFloatLinearName,
47 OESStandardDerivativesName,
48 OESVertexArrayObjectName,
49 WebGLDebugRendererInfoName,
50 WebGLDebugShadersName,
51 WebGLCompressedTextureS3TCName,
52 WebGLDepthTextureName,
53 WebGLDrawBuffersName,
54 OESElementIndexUintName,
55 WebGLCompressedTextureATCName,
56 WebGLCompressedTexturePVRTCName,
57 WebGLCompressedTextureASTCName,
58 ANGLEInstancedArraysName,
59 };
60
61 void ref() { m_context.ref(); }
62 void deref() { m_context.deref(); }
63 WebGLRenderingContextBase& context() { return m_context; }
64
65 virtual ~WebGLExtension();
66 virtual ExtensionName getName() const = 0;
67
68protected:
69 WebGLExtension(WebGLRenderingContextBase&);
70 WebGLRenderingContextBase& m_context;
71};
72
73} // namespace WebCore
74