michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "WebGLBuffer.h"
michael@0: 
michael@0: #include "GLContext.h"
michael@0: #include "mozilla/dom/WebGLRenderingContextBinding.h"
michael@0: #include "WebGLContext.h"
michael@0: #include "WebGLElementArrayCache.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: 
michael@0: WebGLBuffer::WebGLBuffer(WebGLContext *context)
michael@0:     : WebGLContextBoundObject(context)
michael@0:     , mHasEverBeenBound(false)
michael@0:     , mByteLength(0)
michael@0:     , mTarget(LOCAL_GL_NONE)
michael@0: {
michael@0:     SetIsDOMBinding();
michael@0:     mContext->MakeContextCurrent();
michael@0:     mContext->gl->fGenBuffers(1, &mGLName);
michael@0:     mContext->mBuffers.insertBack(this);
michael@0: }
michael@0: 
michael@0: WebGLBuffer::~WebGLBuffer() {
michael@0:     DeleteOnce();
michael@0: }
michael@0: 
michael@0: void
michael@0: WebGLBuffer::Delete() {
michael@0:     mContext->MakeContextCurrent();
michael@0:     mContext->gl->fDeleteBuffers(1, &mGLName);
michael@0:     mByteLength = 0;
michael@0:     mCache = nullptr;
michael@0:     LinkedListElement<WebGLBuffer>::remove(); // remove from mContext->mBuffers
michael@0: }
michael@0: 
michael@0: void
michael@0: WebGLBuffer::SetTarget(GLenum target) {
michael@0:     mTarget = target;
michael@0:     if (!mCache && mTarget == LOCAL_GL_ELEMENT_ARRAY_BUFFER)
michael@0:         mCache = new WebGLElementArrayCache;
michael@0: }
michael@0: 
michael@0: bool
michael@0: WebGLBuffer::ElementArrayCacheBufferData(const void* ptr, size_t buffer_size_in_bytes) {
michael@0:     if (mTarget == LOCAL_GL_ELEMENT_ARRAY_BUFFER)
michael@0:         return mCache->BufferData(ptr, buffer_size_in_bytes);
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: void
michael@0: WebGLBuffer::ElementArrayCacheBufferSubData(size_t pos, const void* ptr, size_t update_size_in_bytes) {
michael@0:     if (mTarget == LOCAL_GL_ELEMENT_ARRAY_BUFFER)
michael@0:         mCache->BufferSubData(pos, ptr, update_size_in_bytes);
michael@0: }
michael@0: 
michael@0: size_t
michael@0: WebGLBuffer::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
michael@0: {
michael@0:     size_t sizeOfCache = mCache ? mCache->SizeOfIncludingThis(aMallocSizeOf) : 0;
michael@0:     return aMallocSizeOf(this) + sizeOfCache;
michael@0: }
michael@0: 
michael@0: bool
michael@0: WebGLBuffer::Validate(GLenum type, uint32_t max_allowed,
michael@0:                       size_t first, size_t count,
michael@0:                       uint32_t* out_upperBound)
michael@0: {
michael@0:     return mCache->Validate(type, max_allowed, first, count, out_upperBound);
michael@0: }
michael@0: 
michael@0: 
michael@0: JSObject*
michael@0: WebGLBuffer::WrapObject(JSContext *cx) {
michael@0:     return dom::WebGLBufferBinding::Wrap(cx, this);
michael@0: }
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(WebGLBuffer)
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLBuffer, AddRef)
michael@0: NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLBuffer, Release)