/* -*- 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 "GLContext.h"

#include "mozilla/dom/WebGLRenderingContextBinding.h"

#include "WebGLContext.h"

namespace mozilla {

WebGLExtensionDepthTexture::WebGLExtensionDepthTexture(WebGLContext* webgl)

    : WebGLExtensionBase(webgl)

{

    auto& fua = webgl->mFormatUsage;

    const auto fnAdd = [&fua](webgl::EffectiveFormat effFormat, GLenum unpackFormat,

                              GLenum unpackType)

    {

        auto usage = fua->EditUsage(effFormat);

        usage->isFilterable = true;

        usage->SetRenderable();

        const webgl::PackingInfo pi = {unpackFormat, unpackType};

        const webgl::DriverUnpackInfo dui = {unpackFormat, unpackFormat, unpackType};

        fua->AddTexUnpack(usage, pi, dui);

        fua->AllowUnsizedTexFormat(pi, usage);

    };

    fnAdd(webgl::EffectiveFormat::DEPTH_COMPONENT16, LOCAL_GL_DEPTH_COMPONENT,

          LOCAL_GL_UNSIGNED_SHORT);

    fnAdd(webgl::EffectiveFormat::DEPTH_COMPONENT24, LOCAL_GL_DEPTH_COMPONENT,

          LOCAL_GL_UNSIGNED_INT);

    fnAdd(webgl::EffectiveFormat::DEPTH24_STENCIL8, LOCAL_GL_DEPTH_STENCIL,

          LOCAL_GL_UNSIGNED_INT_24_8);

}

WebGLExtensionDepthTexture::~WebGLExtensionDepthTexture()

{

}

IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionDepthTexture, WEBGL_depth_texture)

} // namespace mozilla