120 lines
3.0 KiB
C++
120 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WebGLBuffer.h"
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#include "GLContext.h"
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#include "mozilla/dom/WebGLRenderingContextBinding.h"
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#include "WebGLContext.h"
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#include "WebGLElementArrayCache.h"
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namespace mozilla {
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WebGLBuffer::WebGLBuffer(WebGLContext* webgl, GLuint buf)
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: WebGLContextBoundObject(webgl)
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, mGLName(buf)
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, mContent(Kind::Undefined)
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, mByteLength(0)
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{
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mContext->mBuffers.insertBack(this);
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}
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WebGLBuffer::~WebGLBuffer()
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{
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DeleteOnce();
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}
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void
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WebGLBuffer::BindTo(GLenum target)
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{
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switch (target) {
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case LOCAL_GL_ELEMENT_ARRAY_BUFFER:
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mContent = Kind::ElementArray;
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if (!mCache)
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mCache = new WebGLElementArrayCache;
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break;
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case LOCAL_GL_ARRAY_BUFFER:
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case LOCAL_GL_PIXEL_PACK_BUFFER:
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case LOCAL_GL_PIXEL_UNPACK_BUFFER:
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case LOCAL_GL_UNIFORM_BUFFER:
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case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER:
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mContent = Kind::OtherData;
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break;
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case LOCAL_GL_COPY_READ_BUFFER:
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case LOCAL_GL_COPY_WRITE_BUFFER:
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if (mContent == Kind::Undefined) {
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mContent = Kind::OtherData;
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}
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break;
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default:
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MOZ_CRASH();
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}
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}
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void
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WebGLBuffer::Delete()
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{
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mContext->MakeContextCurrent();
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mContext->gl->fDeleteBuffers(1, &mGLName);
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mByteLength = 0;
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mCache = nullptr;
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LinkedListElement<WebGLBuffer>::remove(); // remove from mContext->mBuffers
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}
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bool
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WebGLBuffer::ElementArrayCacheBufferData(const void* ptr,
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size_t bufferSizeInBytes)
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{
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if (mContent == Kind::ElementArray)
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return mCache->BufferData(ptr, bufferSizeInBytes);
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return true;
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}
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void
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WebGLBuffer::ElementArrayCacheBufferSubData(size_t pos, const void* ptr,
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size_t updateSizeInBytes)
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{
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if (mContent == Kind::ElementArray)
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mCache->BufferSubData(pos, ptr, updateSizeInBytes);
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}
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size_t
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WebGLBuffer::SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf) const
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{
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size_t sizeOfCache = mCache ? mCache->SizeOfIncludingThis(mallocSizeOf)
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: 0;
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return mallocSizeOf(this) + sizeOfCache;
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}
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bool
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WebGLBuffer::Validate(GLenum type, uint32_t maxAllowed, size_t first,
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size_t count, uint32_t* const out_upperBound)
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{
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return mCache->Validate(type, maxAllowed, first, count, out_upperBound);
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}
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bool
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WebGLBuffer::IsElementArrayUsedWithMultipleTypes() const
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{
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return mCache->BeenUsedWithMultipleTypes();
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}
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JSObject*
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WebGLBuffer::WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto)
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{
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return dom::WebGLBufferBinding::Wrap(cx, this, givenProto);
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}
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(WebGLBuffer)
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLBuffer, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLBuffer, Release)
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} // namespace mozilla
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