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Viewing changes to src/server/graphics/android/hwc11_device.cpp

  • Committer: Package Import Robot
  • Author(s): Ubuntu daily release
  • Date: 2014-01-08 02:04:38 UTC
  • mto: This revision was merged to the branch mainline in revision 58.
  • Revision ID: package-import@ubuntu.com-20140108020438-e1npu0pm7qdv5wc4
Tags: upstream-0.1.3+14.04.20140108
Import upstream version 0.1.3+14.04.20140108

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src/server/graphics/android/hwc11_device.cpp
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/*
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 * Copyright © 2013 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 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 General Public License for more details.
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 *
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 * You should have received a copy of the GNU 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:
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 *   Kevin DuBois <kevin.dubois@canonical.com>
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 */
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#include "hwc11_device.h"
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#include "hwc_layerlist.h"
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#include "hwc_vsync_coordinator.h"
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#include "framebuffer_bundle.h"
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#include "buffer.h"
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#include "mir/graphics/android/sync_fence.h"
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#include "mir/graphics/android/native_buffer.h"
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#include "mir/graphics/buffer.h"
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#include <EGL/eglext.h>
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#include <boost/throw_exception.hpp>
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#include <stdexcept>
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namespace mg = mir::graphics;
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namespace mga=mir::graphics::android;
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namespace geom = mir::geometry;
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mga::HWC11Device::HWC11Device(std::shared_ptr<hwc_composer_device_1> const& hwc_device,
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                              std::shared_ptr<HWCVsyncCoordinator> const& coordinator)
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    : HWCCommonDevice(hwc_device, coordinator),
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      layer_list({mga::CompositionLayer{true}, mga::FramebufferLayer{}}),
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      sync_ops(std::make_shared<mga::RealSyncFileOps>())
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{
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}
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void mga::HWC11Device::prepare_composition()
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{
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    //note, although we only have a primary display right now,
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    //      set the second display to nullptr, as exynos hwc always derefs displays[1]
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    hwc_display_contents_1_t* displays[HWC_NUM_DISPLAY_TYPES] {layer_list.native_list(), nullptr};
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    if (hwc_device->prepare(hwc_device.get(), 1, displays))
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    {
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        BOOST_THROW_EXCEPTION(std::runtime_error("error during hwc prepare()"));
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    }
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}
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void mga::HWC11Device::gpu_render(EGLDisplay dpy, EGLSurface sur)
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{
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    if (eglSwapBuffers(dpy, sur) == EGL_FALSE)
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    {
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        BOOST_THROW_EXCEPTION(std::runtime_error("eglSwapBuffers failure\n"));
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    }
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}
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void mga::HWC11Device::post(mg::Buffer const& buffer)
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{
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    auto lg = lock_unblanked();
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    auto native_buffer = buffer.native_buffer_handle();
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    layer_list.set_fb_target(native_buffer);
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    hwc_display_contents_1_t* displays[HWC_NUM_DISPLAY_TYPES] {layer_list.native_list(), nullptr};
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    if (hwc_device->set(hwc_device.get(), 1, displays))
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    {
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        BOOST_THROW_EXCEPTION(std::runtime_error("error during hwc set()"));
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    }
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    if (last_display_fence)
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        last_display_fence->wait();
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    int framebuffer_fence = layer_list.framebuffer_fence();
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    native_buffer->update_fence(framebuffer_fence);
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    last_display_fence = std::make_shared<mga::SyncFence>(
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        sync_ops, displays[HWC_DISPLAY_PRIMARY]->retireFenceFd);
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}