2 * Copyright (C) 2009 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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
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11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, 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 COMPUTER, 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
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26 #ifndef WebGLProgram_h
27 #define WebGLProgram_h
29 #include "bindings/core/v8/ScriptWrappable.h"
30 #include "core/html/canvas/WebGLSharedObject.h"
31 #include "core/html/canvas/WebGLShader.h"
32 #include "wtf/PassRefPtr.h"
33 #include "wtf/Vector.h"
37 class WebGLProgram final : public WebGLSharedObject, public ScriptWrappable {
38 DEFINE_WRAPPERTYPEINFO();
40 virtual ~WebGLProgram();
42 static PassRefPtrWillBeRawPtr<WebGLProgram> create(WebGLRenderingContextBase*);
44 unsigned numActiveAttribLocations();
45 GLint getActiveAttribLocation(GLuint index);
47 bool isUsingVertexAttrib0();
51 unsigned linkCount() const { return m_linkCount; }
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();
59 WebGLShader* getAttachedShader(GLenum);
60 bool attachShader(WebGLShader*);
61 bool detachShader(WebGLShader*);
63 virtual void trace(Visitor*) override;
66 explicit WebGLProgram(WebGLRenderingContextBase*);
68 virtual void deleteObjectImpl(blink::WebGraphicsContext3D*, Platform3DObject) override;
71 virtual bool isProgram() const override { return true; }
73 void cacheActiveAttribLocations(blink::WebGraphicsContext3D*);
74 void cacheInfoIfNeeded();
76 Vector<GLint> m_activeAttribLocations;
80 // This is used to track whether a WebGLUniformLocation belongs to this
84 RefPtrWillBeMember<WebGLShader> m_vertexShader;
85 RefPtrWillBeMember<WebGLShader> m_fragmentShader;
92 #endif // WebGLProgram_h