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
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15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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26 #ifndef WebGLFramebuffer_h
27 #define WebGLFramebuffer_h
29 #include "WebGLObject.h"
31 #include <wtf/PassRefPtr.h>
32 #include <wtf/RefCounted.h>
36 class WebGLFramebuffer : public WebGLObject {
38 virtual ~WebGLFramebuffer() { deleteObject(); }
40 static PassRefPtr<WebGLFramebuffer> create(WebGLRenderingContext*);
42 void setAttachment(unsigned long, WebGLObject*);
43 // If an object is attached to the framebuffer, remove it.
44 void removeAttachment(WebGLObject*);
45 WebGLObject* getAttachment(unsigned long) const;
47 unsigned long getColorBufferFormat() const;
49 // This should always be called before drawArray, drawElements, clear,
50 // readPixels, copyTexImage2D, copyTexSubImage2D if this framebuffer is
52 // Return false if the framebuffer is incomplete; otherwise initialize
53 // the buffers if they haven't been initialized.
56 // Return false does not mean COMPLETE, might still be INCOMPLETE.
57 bool isIncomplete(bool checkInternalFormat) const;
59 bool hasEverBeenBound() const { return object() && m_hasEverBeenBound; }
61 void setHasEverBeenBound() { m_hasEverBeenBound = true; }
64 WebGLFramebuffer(WebGLRenderingContext*);
66 virtual void deleteObjectImpl(Platform3DObject);
69 virtual bool isFramebuffer() const { return true; }
71 // Return false if framebuffer is incomplete.
72 bool initializeRenderbuffers();
74 bool isColorAttached() const { return (m_colorAttachment && m_colorAttachment->object()); }
75 bool isDepthAttached() const { return (m_depthAttachment && m_depthAttachment->object()); }
76 bool isStencilAttached() const { return (m_stencilAttachment && m_stencilAttachment->object()); }
77 bool isDepthStencilAttached() const { return (m_depthStencilAttachment && m_depthStencilAttachment->object()); }
79 RefPtr<WebGLObject> m_colorAttachment;
80 RefPtr<WebGLObject> m_depthAttachment;
81 RefPtr<WebGLObject> m_stencilAttachment;
82 RefPtr<WebGLObject> m_depthStencilAttachment;
84 bool m_hasEverBeenBound;
87 } // namespace WebCore
89 #endif // WebGLFramebuffer_h