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  • Committer: Tarmac
  • Author(s): Daniel van Vugt
  • Date: 2015-05-18 21:30:28 UTC
  • mfrom: (2456.3.14 consistent-alpha-usage)
  • Revision ID: tarmac-20150518213028-8f4nffe8pc9v7ape
Reduce coupling and simplify: Remove DisplayBuffer::uses_alpha() and
switch back to a trivial colour mask for all targets.

Approved by Kevin DuBois, Alan Griffiths, Alberto Aguirre, PS Jenkins bot.

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tests/unit-tests/graphics/nested/test_nested_display_buffer.cpp
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/*
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 * Copyright © 2014 Canonical Ltd.
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License version 3 as
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 * 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: Alberto Aguirre <alberto.aguirre@canonical.com>
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 */
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#include "src/server/graphics/nested/display_buffer.h"
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#include "src/server/graphics/nested/host_connection.h"
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#include "src/server/input/null_input_dispatcher.h"
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#include "mir_test_doubles/mock_egl.h"
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#include "mir_test_doubles/stub_gl_config.h"
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#include "mir_test_doubles/stub_cursor_listener.h"
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#include "mir_test/fake_shared.h"
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#include <gtest/gtest.h>
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#include <gmock/gmock.h>
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namespace geom = mir::geometry;
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namespace mg = mir::graphics;
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namespace mgn = mg::nested;
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namespace mgnd = mg::nested::detail;
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namespace mi = mir::input;
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namespace mt = mir::test;
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namespace mtd = mir::test::doubles;
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class NullHostSurface : public mgn::HostSurface
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{
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public:
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    EGLNativeWindowType egl_native_window() override { return {}; }
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    void set_event_handler(mir_surface_event_callback, void*) override {}
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};
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struct NestedDisplayBufferTest : testing::Test
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{
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    NestedDisplayBufferTest()
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        : egl_disp_handle{mock_egl.fake_egl_display,
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                          mt::fake_shared(stub_gl_config)},
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          default_rect{{100,100}, {800,600}}
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    {}
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    testing::NiceMock<mtd::MockEGL> mock_egl;
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    mtd::StubGLConfig stub_gl_config;
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    NullHostSurface null_host_surface;
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    mi::NullInputDispatcher null_input_dispatcher;
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    std::shared_ptr<mi::CursorListener> cursor =
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        std::make_shared<mtd::StubCursorListener>();
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    mgnd::EGLDisplayHandle egl_disp_handle;
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    geom::Rectangle const default_rect;
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};
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TEST_F(NestedDisplayBufferTest, alpha_enabled_pixel_format_enables_destination_alpha)
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{
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    mgnd::DisplayBuffer db{
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        egl_disp_handle,
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        mt::fake_shared(null_host_surface),
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        default_rect,
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        mt::fake_shared(null_input_dispatcher),
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        cursor,
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        mir_pixel_format_abgr_8888};
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    EXPECT_TRUE(db.uses_alpha());
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}
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TEST_F(NestedDisplayBufferTest, non_alpha_pixel_format_disables_destination_alpha)
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{
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    mgnd::DisplayBuffer db{
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        egl_disp_handle,
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        mt::fake_shared(null_host_surface),
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        default_rect,
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        mt::fake_shared(null_input_dispatcher),
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        cursor,
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        mir_pixel_format_xbgr_8888};
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    EXPECT_FALSE(db.uses_alpha());
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}