gecko/dom/canvas/WebGLVertexArray.cpp

79 lines
2.3 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "WebGLVertexArray.h"
#include "WebGLContext.h"
#include "WebGLBuffer.h"
#include "WebGLVertexArrayGL.h"
#include "WebGLVertexArrayFake.h"
#include "mozilla/dom/WebGLRenderingContextBinding.h"
#include "GLContext.h"
using namespace mozilla;
JSObject*
WebGLVertexArray::WrapObject(JSContext *cx) {
return dom::WebGLVertexArrayBinding::Wrap(cx, this);
}
WebGLVertexArray::WebGLVertexArray(WebGLContext* context)
: WebGLBindableName<VAOBinding>()
, WebGLContextBoundObject(context)
{
SetIsDOMBinding();
context->mVertexArrays.insertBack(this);
}
WebGLVertexArray*
WebGLVertexArray::Create(WebGLContext* context)
{
WebGLVertexArray* array;
if (context->gl->IsSupported(gl::GLFeature::vertex_array_object)) {
array = new WebGLVertexArrayGL(context);
} else {
array = new WebGLVertexArrayFake(context);
}
return array;
}
void
WebGLVertexArray::Delete()
{
DeleteImpl();
LinkedListElement<WebGLVertexArray>::removeFrom(mContext->mVertexArrays);
mElementArrayBuffer = nullptr;
mAttribs.Clear();
}
bool
WebGLVertexArray::EnsureAttrib(GLuint index, const char *info)
{
if (index >= GLuint(mContext->mGLMaxVertexAttribs)) {
if (index == GLuint(-1)) {
mContext->ErrorInvalidValue("%s: index -1 is invalid. That probably comes from a getAttribLocation() call, "
"where this return value -1 means that the passed name didn't correspond to an active attribute in "
"the specified program.", info);
} else {
mContext->ErrorInvalidValue("%s: index %d is out of range", info, index);
}
return false;
}
else if (index >= mAttribs.Length()) {
mAttribs.SetLength(index + 1);
}
return true;
}
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(WebGLVertexArray,
mAttribs,
mElementArrayBuffer)
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLVertexArray, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLVertexArray, Release)