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| 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 #include "sky/engine/config.h" | |
| 27 | |
| 28 #include "sky/engine/core/html/canvas/WebGLBuffer.h" | |
| 29 | |
| 30 #include "sky/engine/core/html/canvas/WebGLRenderingContextBase.h" | |
| 31 | |
| 32 namespace blink { | |
| 33 | |
| 34 PassRefPtr<WebGLBuffer> WebGLBuffer::create(WebGLRenderingContextBase* ctx) | |
| 35 { | |
| 36 return adoptRef(new WebGLBuffer(ctx)); | |
| 37 } | |
| 38 | |
| 39 WebGLBuffer::WebGLBuffer(WebGLRenderingContextBase* ctx) | |
| 40 : WebGLSharedObject(ctx) | |
| 41 , m_target(0) | |
| 42 { | |
| 43 setObject(ctx->webContext()->createBuffer()); | |
| 44 } | |
| 45 | |
| 46 WebGLBuffer::~WebGLBuffer() | |
| 47 { | |
| 48 // Delete the buffer's platform object. This object will have been | |
| 49 // detached from the WebGLContextGroup if the group object was | |
| 50 // finalized first. With Oilpan not enabled, it always will be, | |
| 51 // but with Oilpan enabled, the WebGLBuffer might end up being | |
| 52 // finalized first. In which case detachment is needed to ensure | |
| 53 // that the platform object is indeed deleted. | |
| 54 // | |
| 55 // To keep the code regular, the trivial detach()ment is always | |
| 56 // performed. | |
| 57 detachAndDeleteObject(); | |
| 58 } | |
| 59 | |
| 60 void WebGLBuffer::deleteObjectImpl(blink::WebGraphicsContext3D* context3d, Platf
orm3DObject object) | |
| 61 { | |
| 62 context3d->deleteBuffer(object); | |
| 63 } | |
| 64 | |
| 65 void WebGLBuffer::setTarget(GLenum target) | |
| 66 { | |
| 67 // In WebGL, a buffer is bound to one target in its lifetime | |
| 68 if (m_target) | |
| 69 return; | |
| 70 if (target == GL_ARRAY_BUFFER || target == GL_ELEMENT_ARRAY_BUFFER) | |
| 71 m_target = target; | |
| 72 } | |
| 73 | |
| 74 } | |
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