1 /*
2  * Copyright (C) 2009 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 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
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 #ifndef WebGLRenderbuffer_h
27 #define WebGLRenderbuffer_h
28 
29 #include "WebGLObject.h"
30 
31 #include <wtf/PassRefPtr.h>
32 #include <wtf/RefCounted.h>
33 
34 namespace WebCore {
35 
36 class WebGLRenderbuffer : public WebGLObject {
37 public:
~WebGLRenderbuffer()38     virtual ~WebGLRenderbuffer() { deleteObject(); }
39 
40     static PassRefPtr<WebGLRenderbuffer> create(WebGLRenderingContext*);
41 
setInternalFormat(GC3Denum internalformat)42     void setInternalFormat(GC3Denum internalformat)
43     {
44         m_internalFormat = internalformat;
45         m_initialized = false;
46     }
getInternalFormat()47     GC3Denum getInternalFormat() const { return m_internalFormat; }
48 
setSize(GC3Dsizei width,GC3Dsizei height)49     void setSize(GC3Dsizei width, GC3Dsizei height)
50     {
51         m_width = width;
52         m_height = height;
53     }
getWidth()54     GC3Dsizei getWidth() const { return m_width; }
getHeight()55     GC3Dsizei getHeight() const { return m_height; }
56 
setIsValid(bool isValid)57     void setIsValid(bool isValid) { m_isValid = isValid; }
isValid()58     bool isValid() const { return m_isValid; }
59 
isInitialized()60     bool isInitialized() const { return m_initialized; }
setInitialized()61     void setInitialized() { m_initialized = true; }
62 
hasEverBeenBound()63     bool hasEverBeenBound() const { return object() && m_hasEverBeenBound; }
64 
setHasEverBeenBound()65     void setHasEverBeenBound() { m_hasEverBeenBound = true; }
66 
67 protected:
68     WebGLRenderbuffer(WebGLRenderingContext*);
69 
70     virtual void deleteObjectImpl(Platform3DObject);
71 
72 private:
isRenderbuffer()73     virtual bool isRenderbuffer() const { return true; }
74 
75     GC3Denum m_internalFormat;
76     bool m_initialized;
77     GC3Dsizei m_width, m_height;
78     bool m_isValid; // This is only false if internalFormat is DEPTH_STENCIL and packed_depth_stencil is not supported.
79 
80     bool m_hasEverBeenBound;
81 };
82 
83 } // namespace WebCore
84 
85 #endif // WebGLRenderbuffer_h
86