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  • Committer: Package Import Robot
  • Author(s): Ubuntu daily release, Daniel van Vugt, Ubuntu daily release
  • Date: 2014-01-08 02:04:38 UTC
  • mfrom: (1.1.54)
  • Revision ID: package-import@ubuntu.com-20140108020438-ikbu7qqm9v2l026y
Tags: 0.1.3+14.04.20140108-0ubuntu1
[ Daniel van Vugt ]
* Preparing for release 0.1.3

[ Ubuntu daily release ]
* Automatic snapshot from revision 1170

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src/client/mesa/client_platform.cpp
 
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/*
 
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 * Copyright © 2012 Canonical Ltd.
 
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 *
 
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 * This program is free software: you can redistribute it and/or modify it
 
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 * under the terms of the GNU Lesser General Public License version 3,
 
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 * as published by the Free Software Foundation.
 
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 *
 
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 * This program is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 * GNU Lesser General Public License for more details.
 
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 *
 
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 * You should have received a copy of the GNU Lesser General Public License
 
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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 *
 
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 * Authored by: Kevin DuBois<kevin.dubois@canonical.com>
 
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 */
 
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#include "mir_toolkit/mir_client_library.h"
 
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#include "client_platform.h"
 
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#include "client_buffer_factory.h"
 
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#include "mesa_native_display_container.h"
 
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#include "buffer_file_ops.h"
 
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#include "native_surface.h"
 
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#include "../mir_connection.h"
 
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#include "../client_buffer_factory.h"
 
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#include "../native_client_platform_factory.h"
 
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#include <sys/mman.h>
 
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#include <unistd.h>
 
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namespace mcl=mir::client;
 
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namespace mclm=mir::client::mesa;
 
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namespace geom=mir::geometry;
 
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namespace
 
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{
 
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struct RealBufferFileOps : public mclm::BufferFileOps
 
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{
 
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    int close(int fd) const
 
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    {
 
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        while (::close(fd) == -1)
 
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        {
 
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            // Retry on EINTR, return error on anything else
 
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            if (errno != EINTR)
 
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                return errno;
 
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        }
 
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        return 0;
 
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    }
 
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    void* map(int fd, off_t offset, size_t size) const
 
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    {
 
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        return mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_SHARED,
 
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                    fd, offset);
 
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    }
 
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    void unmap(void* addr, size_t size) const
 
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    {
 
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        munmap(addr, size);
 
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    }
 
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};
 
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struct NativeDisplayDeleter
 
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{
 
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    NativeDisplayDeleter(mcl::EGLNativeDisplayContainer& container)
 
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    : container(container)
 
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    {
 
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    }
 
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    void operator() (EGLNativeDisplayType* p)
 
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    {
 
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        auto display = *(reinterpret_cast<MirEGLNativeDisplayType*>(p));
 
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        container.release(display);
 
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        delete p;
 
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    }
 
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    mcl::EGLNativeDisplayContainer& container;
 
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};
 
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}
 
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std::shared_ptr<mcl::ClientPlatform>
 
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mcl::NativeClientPlatformFactory::create_client_platform(mcl::ClientContext* context)
 
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{
 
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    auto buffer_file_ops = std::make_shared<RealBufferFileOps>();
 
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    return std::make_shared<mclm::ClientPlatform>(
 
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        context, buffer_file_ops, mcl::EGLNativeDisplayContainer::instance());
 
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}
 
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mclm::ClientPlatform::ClientPlatform(
 
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        ClientContext* const context,
 
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        std::shared_ptr<BufferFileOps> const& buffer_file_ops,
 
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        mcl::EGLNativeDisplayContainer& display_container)
 
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    : context{context},
 
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      buffer_file_ops{buffer_file_ops},
 
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      display_container(display_container)
 
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{
 
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}
 
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std::shared_ptr<mcl::ClientBufferFactory> mclm::ClientPlatform::create_buffer_factory()
 
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{
 
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    return std::make_shared<mclm::ClientBufferFactory>(buffer_file_ops);
 
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}
 
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namespace
 
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{
 
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struct NativeWindowDeleter
 
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{
 
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    NativeWindowDeleter(mclm::NativeSurface* window)
 
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     : window(window) {}
 
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    void operator()(EGLNativeWindowType* type)
 
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    {
 
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        delete type;
 
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        delete window;
 
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    }
 
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private:
 
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    mclm::NativeSurface* window;
 
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};
 
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}
 
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std::shared_ptr<EGLNativeWindowType> mclm::ClientPlatform::create_egl_native_window(ClientSurface* client_surface)
 
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{
 
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    //TODO: this is awkward on both android and gbm...
 
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    auto native_window = new NativeSurface(*client_surface);
 
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    auto egl_native_window = new EGLNativeWindowType;
 
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    *egl_native_window = native_window;
 
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    NativeWindowDeleter deleter(native_window);
 
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    return std::shared_ptr<EGLNativeWindowType>(egl_native_window, deleter);
 
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}
 
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std::shared_ptr<EGLNativeDisplayType> mclm::ClientPlatform::create_egl_native_display()
 
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{
 
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    MirEGLNativeDisplayType *mir_native_display = new MirEGLNativeDisplayType;
 
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    *mir_native_display = display_container.create(context->mir_connection());
 
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    auto egl_native_display = reinterpret_cast<EGLNativeDisplayType*>(mir_native_display);
 
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    return std::shared_ptr<EGLNativeDisplayType>(egl_native_display, NativeDisplayDeleter(display_container));
 
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}
 
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MirPlatformType mclm::ClientPlatform::platform_type() const
 
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{
 
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    return mir_platform_type_gbm;
 
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}
 
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MirNativeBuffer* mclm::ClientPlatform::convert_native_buffer(graphics::NativeBuffer* buf) const
 
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{
 
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    //MirNativeBuffer is type-compatible with the MirNativeBuffer
 
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    return buf;
 
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}