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| 1 /* | 1 /* |
| 2 * Copyright (C) 2009 Apple Inc. All rights reserved. | 2 * Copyright (C) 2009 Apple Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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| 75 GLenum attachment, | 75 GLenum attachment, |
| 76 GLenum texTarget, | 76 GLenum texTarget, |
| 77 WebGLTexture*, | 77 WebGLTexture*, |
| 78 GLint level, | 78 GLint level, |
| 79 GLint layer); | 79 GLint layer); |
| 80 void setAttachmentForBoundFramebuffer(GLenum target, | 80 void setAttachmentForBoundFramebuffer(GLenum target, |
| 81 GLenum attachment, | 81 GLenum attachment, |
| 82 WebGLRenderbuffer*); | 82 WebGLRenderbuffer*); |
| 83 // If an object is attached to the currently bound framebuffer, remove it. | 83 // If an object is attached to the currently bound framebuffer, remove it. |
| 84 void removeAttachmentFromBoundFramebuffer(GLenum target, WebGLSharedObject*); | 84 void removeAttachmentFromBoundFramebuffer(GLenum target, WebGLSharedObject*); |
| 85 // If a given attachment point for the currently bound framebuffer is not null
, remove the attached object. | 85 // If a given attachment point for the currently bound framebuffer is not |
| 86 // null, remove the attached object. |
| 86 void removeAttachmentFromBoundFramebuffer(GLenum target, GLenum attachment); | 87 void removeAttachmentFromBoundFramebuffer(GLenum target, GLenum attachment); |
| 87 WebGLSharedObject* getAttachmentObject(GLenum) const; | 88 WebGLSharedObject* getAttachmentObject(GLenum) const; |
| 88 | 89 |
| 89 // WebGL 1 specific: | 90 // WebGL 1 specific: |
| 90 // 1) can't allow depth_stencil for depth/stencil attachments, and vice vers
a. | 91 // 1) can't allow depth_stencil for depth/stencil attachments, and vice |
| 92 // versa. |
| 91 // 2) no conflicting DEPTH/STENCIL/DEPTH_STENCIL attachments. | 93 // 2) no conflicting DEPTH/STENCIL/DEPTH_STENCIL attachments. |
| 92 GLenum checkDepthStencilStatus(const char** reason) const; | 94 GLenum checkDepthStencilStatus(const char** reason) const; |
| 93 | 95 |
| 94 bool hasEverBeenBound() const { return object() && m_hasEverBeenBound; } | 96 bool hasEverBeenBound() const { return object() && m_hasEverBeenBound; } |
| 95 | 97 |
| 96 void setHasEverBeenBound() { m_hasEverBeenBound = true; } | 98 void setHasEverBeenBound() { m_hasEverBeenBound = true; } |
| 97 | 99 |
| 98 bool hasStencilBuffer() const; | 100 bool hasStencilBuffer() const; |
| 99 | 101 |
| 100 // Wrapper for drawBuffersEXT/drawBuffersARB to work around a driver bug. | 102 // Wrapper for drawBuffersEXT/drawBuffersARB to work around a driver bug. |
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| 119 | 121 |
| 120 private: | 122 private: |
| 121 WebGLAttachment* getAttachment(GLenum attachment) const; | 123 WebGLAttachment* getAttachment(GLenum attachment) const; |
| 122 | 124 |
| 123 // Check if the framebuffer is currently bound. | 125 // Check if the framebuffer is currently bound. |
| 124 bool isBound(GLenum target) const; | 126 bool isBound(GLenum target) const; |
| 125 | 127 |
| 126 // attach 'attachment' at 'attachmentPoint'. | 128 // attach 'attachment' at 'attachmentPoint'. |
| 127 void attach(GLenum target, GLenum attachment, GLenum attachmentPoint); | 129 void attach(GLenum target, GLenum attachment, GLenum attachmentPoint); |
| 128 | 130 |
| 129 // Check if a new drawBuffers call should be issued. This is called when we ad
d or remove an attachment. | 131 // Check if a new drawBuffers call should be issued. This is called when we |
| 132 // add or remove an attachment. |
| 130 void drawBuffersIfNecessary(bool force); | 133 void drawBuffersIfNecessary(bool force); |
| 131 | 134 |
| 132 GLuint m_object; | 135 GLuint m_object; |
| 133 | 136 |
| 134 typedef HeapHashMap<GLenum, Member<WebGLAttachment>> AttachmentMap; | 137 typedef HeapHashMap<GLenum, Member<WebGLAttachment>> AttachmentMap; |
| 135 | 138 |
| 136 AttachmentMap m_attachments; | 139 AttachmentMap m_attachments; |
| 137 bool m_destructionInProgress; | 140 bool m_destructionInProgress; |
| 138 | 141 |
| 139 bool m_hasEverBeenBound; | 142 bool m_hasEverBeenBound; |
| 140 | 143 |
| 141 Vector<GLenum> m_drawBuffers; | 144 Vector<GLenum> m_drawBuffers; |
| 142 Vector<GLenum> m_filteredDrawBuffers; | 145 Vector<GLenum> m_filteredDrawBuffers; |
| 143 | 146 |
| 144 GLenum m_readBuffer; | 147 GLenum m_readBuffer; |
| 145 }; | 148 }; |
| 146 | 149 |
| 147 } // namespace blink | 150 } // namespace blink |
| 148 | 151 |
| 149 #endif // WebGLFramebuffer_h | 152 #endif // WebGLFramebuffer_h |
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