1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/src/WebGLBuffer.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,84 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "WebGLBuffer.h"
1.10 +
1.11 +#include "GLContext.h"
1.12 +#include "mozilla/dom/WebGLRenderingContextBinding.h"
1.13 +#include "WebGLContext.h"
1.14 +#include "WebGLElementArrayCache.h"
1.15 +
1.16 +using namespace mozilla;
1.17 +
1.18 +WebGLBuffer::WebGLBuffer(WebGLContext *context)
1.19 + : WebGLContextBoundObject(context)
1.20 + , mHasEverBeenBound(false)
1.21 + , mByteLength(0)
1.22 + , mTarget(LOCAL_GL_NONE)
1.23 +{
1.24 + SetIsDOMBinding();
1.25 + mContext->MakeContextCurrent();
1.26 + mContext->gl->fGenBuffers(1, &mGLName);
1.27 + mContext->mBuffers.insertBack(this);
1.28 +}
1.29 +
1.30 +WebGLBuffer::~WebGLBuffer() {
1.31 + DeleteOnce();
1.32 +}
1.33 +
1.34 +void
1.35 +WebGLBuffer::Delete() {
1.36 + mContext->MakeContextCurrent();
1.37 + mContext->gl->fDeleteBuffers(1, &mGLName);
1.38 + mByteLength = 0;
1.39 + mCache = nullptr;
1.40 + LinkedListElement<WebGLBuffer>::remove(); // remove from mContext->mBuffers
1.41 +}
1.42 +
1.43 +void
1.44 +WebGLBuffer::SetTarget(GLenum target) {
1.45 + mTarget = target;
1.46 + if (!mCache && mTarget == LOCAL_GL_ELEMENT_ARRAY_BUFFER)
1.47 + mCache = new WebGLElementArrayCache;
1.48 +}
1.49 +
1.50 +bool
1.51 +WebGLBuffer::ElementArrayCacheBufferData(const void* ptr, size_t buffer_size_in_bytes) {
1.52 + if (mTarget == LOCAL_GL_ELEMENT_ARRAY_BUFFER)
1.53 + return mCache->BufferData(ptr, buffer_size_in_bytes);
1.54 + return true;
1.55 +}
1.56 +
1.57 +void
1.58 +WebGLBuffer::ElementArrayCacheBufferSubData(size_t pos, const void* ptr, size_t update_size_in_bytes) {
1.59 + if (mTarget == LOCAL_GL_ELEMENT_ARRAY_BUFFER)
1.60 + mCache->BufferSubData(pos, ptr, update_size_in_bytes);
1.61 +}
1.62 +
1.63 +size_t
1.64 +WebGLBuffer::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
1.65 +{
1.66 + size_t sizeOfCache = mCache ? mCache->SizeOfIncludingThis(aMallocSizeOf) : 0;
1.67 + return aMallocSizeOf(this) + sizeOfCache;
1.68 +}
1.69 +
1.70 +bool
1.71 +WebGLBuffer::Validate(GLenum type, uint32_t max_allowed,
1.72 + size_t first, size_t count,
1.73 + uint32_t* out_upperBound)
1.74 +{
1.75 + return mCache->Validate(type, max_allowed, first, count, out_upperBound);
1.76 +}
1.77 +
1.78 +
1.79 +JSObject*
1.80 +WebGLBuffer::WrapObject(JSContext *cx) {
1.81 + return dom::WebGLBufferBinding::Wrap(cx, this);
1.82 +}
1.83 +
1.84 +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(WebGLBuffer)
1.85 +
1.86 +NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLBuffer, AddRef)
1.87 +NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLBuffer, Release)
