/* -*- Mode: C++; tab-width: 20; 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 "WebGLExtensions.h"

#include "mozilla/dom/WebGLRenderingContextBinding.h"

#include "GLContext.h"

#include "WebGLContext.h"

#include "WebGLContextUtils.h"

namespace mozilla {

WebGLExtensionMOZDebug::WebGLExtensionMOZDebug(WebGLContext* webgl)

    : WebGLExtensionBase(webgl)

{

}

WebGLExtensionMOZDebug::~WebGLExtensionMOZDebug()

{

}

void

WebGLExtensionMOZDebug::GetParameter(JSContext* cx, GLenum pname,

                                     JS::MutableHandle<JS::Value> retval,

                                     ErrorResult& er) const

{

    if (mIsLost)

        return;

    const WebGLContext::FuncScope funcScope(*mContext, "MOZ_debug.getParameter");

    MOZ_ASSERT(!mContext->IsContextLost());

    const auto& gl = mContext->gl;

    switch (pname) {

    case LOCAL_GL_EXTENSIONS:

        {

            nsString ret;

            if (!gl->IsCoreProfile()) {

                const auto rawExts = (const char*)gl->fGetString(LOCAL_GL_EXTENSIONS);

                ret = NS_ConvertUTF8toUTF16(rawExts);

            } else {

                const auto& numExts = gl->GetIntAs<GLuint>(LOCAL_GL_NUM_EXTENSIONS);

                for (GLuint i = 0; i < numExts; i++) {

                    const auto rawExt = (const char*)gl->fGetStringi(LOCAL_GL_EXTENSIONS,

                                                                     i);

                    if (i > 0) {

                        ret.AppendLiteral(" ");

                    }

                    ret.Append(NS_ConvertUTF8toUTF16(rawExt));

                }

            }

            retval.set(StringValue(cx, ret, er));

            return;

        }

    case LOCAL_GL_RENDERER:

    case LOCAL_GL_VENDOR:

    case LOCAL_GL_VERSION:

        {

            const auto raw = (const char*)gl->fGetString(pname);

            retval.set(StringValue(cx, NS_ConvertUTF8toUTF16(raw), er));

            return;

        }

    case dom::MOZ_debug_Binding::WSI_INFO:

        {

            nsCString info;

            gl->GetWSIInfo(&info);

            retval.set(StringValue(cx, NS_ConvertUTF8toUTF16(info), er));

            return;

        }

    case dom::MOZ_debug_Binding::DOES_INDEX_VALIDATION:

        retval.set(JS::BooleanValue(mContext->mNeedsIndexValidation));

        return;

    default:

        mContext->ErrorInvalidEnumInfo("pname", pname);

        retval.set(JS::NullValue());

        return;

    }

}

IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionMOZDebug, MOZ_debug)

} // namespace mozilla