/* -*- 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 "WebGLContext.h"

#include "GLContext.h"

#include "WebGLBuffer.h"

#include "WebGLVertexArray.h"

#include "WebGLVertexAttribData.h"

namespace mozilla {

void

WebGLContext::BindVertexArray(WebGLVertexArray* array)

{

    const FuncScope funcScope(*this, "bindVertexArray");

    if (IsContextLost())

        return;

    if (array && !ValidateObject("array", *array))

        return;

    if (mBoundVertexArray) {

        mBoundVertexArray->AddBufferBindCounts(-1);

    }

    if (array == nullptr) {

        array = mDefaultVertexArray;

    }

    array->BindVertexArray();

    MOZ_ASSERT(mBoundVertexArray == array);

    if (mBoundVertexArray) {

        mBoundVertexArray->AddBufferBindCounts(+1);

    }

}

already_AddRefed<WebGLVertexArray>

WebGLContext::CreateVertexArray()

{

    const FuncScope funcScope(*this, "createVertexArray");

    if (IsContextLost())

        return nullptr;

    RefPtr<WebGLVertexArray> globj = CreateVertexArrayImpl();

    globj->GenVertexArray();

    return globj.forget();

}

WebGLVertexArray*

WebGLContext::CreateVertexArrayImpl()

{

    return WebGLVertexArray::Create(this);

}

void

WebGLContext::DeleteVertexArray(WebGLVertexArray* array)

{

    const FuncScope funcScope(*this, "deleteVertexArray");

    if (!ValidateDeleteObject(array))

        return;

    if (mBoundVertexArray == array)

        BindVertexArray(static_cast<WebGLVertexArray*>(nullptr));

    array->RequestDelete();

}

} // namespace mozilla