Ichthyostega
13adc56f34
The APIs for time quantisation were drafted in an early stage of the project and then never followed-up. Especially Grid::gridAlign has no real-world usage yet, and is only massaged in some tests. When looking at QuantiserBasics_test, I was puzzled and led astray, since this function suggests to materialise a continuous time into a quantised time -- which it doesn't (there is another dedicated function Quantiser::materialise() to that end); so, without engaging into the discussion if this function is of any use, I'll hereby choose a name better reflecting what it does.
135 lines
3.8 KiB
C++
135 lines
3.8 KiB
C++
/*
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TimeGridBasics(Test) - verify a simple reference scale for time quantisation
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Copyright (C) Lumiera.org
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2010, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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/** @file time-grid-basics-test.cpp
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** unit test \ref TimeGridBasics_test
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*/
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#include "lib/test/run.hpp"
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#include "lib/test/test-helper.hpp"
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#include "steam/asset/meta.hpp"
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#include "steam/asset/meta/time-grid.hpp"
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#include "lib/time/timevalue.hpp"
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#include "lib/format-cout.hpp"
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#include "lib/util.hpp"
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#include <boost/rational.hpp>
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using boost::rational_cast;
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using lib::test::randStr;
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namespace steam {
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namespace asset{
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namespace meta {
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namespace test {
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using namespace lib::time;
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typedef Builder<TimeGrid> GridBuilder;
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namespace { // Test definitions...
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const Time TEST_ORIGIN (12,34);
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const FrameRate TEST_FPS (5,6);
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const uint MAX_FRAMES = 1000;
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const uint DIRT_GRAIN = 50;
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}
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/***********************************************************************//**
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* @test build some simple time grids and verify their behaviour
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* for quantising (grid aligning) time values.
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*
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* @see asset::meta::TimeGrid
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* @see time-quantisation-test.cpp usage context
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*/
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class TimeGridBasics_test : public Test
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{
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virtual void
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run (Arg)
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{
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createGrid_fullProcedure();
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createGrid_simplified();
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}
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void
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createGrid_fullProcedure()
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{
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GridID myGrID (randStr(8));
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GridBuilder spec = asset::Meta::create (myGrID);
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CHECK ( spec.fps == 1);
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CHECK ( spec.origin == TimeValue(0));
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CHECK (!spec.predecessor);
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spec.fps = TEST_FPS;
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spec.origin = TEST_ORIGIN;
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PGrid myGrid = spec.commit();
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CHECK (myGrid);
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CHECK (myGrid->ident.name == myGrID.getSym());
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// now verify the grid
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// by performing some conversions...
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int randomFrame = (rand() % MAX_FRAMES);
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Time point (myGrid->timeOf (randomFrame));
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CHECK (point == TEST_ORIGIN + randomFrame * TEST_FPS.duration());
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int fract = 2 + rand() % DIRT_GRAIN;
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FSecs dirt = (1/TEST_FPS) / fract;
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ASSERT (Time(dirt) < TEST_FPS.duration());
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ASSERT (0 < dirt);
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Time dirty(point + Time(dirt));
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CHECK (point == TEST_ORIGIN + myGrid->gridLocal(dirty));
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}
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void
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createGrid_simplified()
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{
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PGrid simplePALGrid = TimeGrid::build ("", FrameRate::PAL);
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CHECK (simplePALGrid);
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CHECK (!util::isnil (simplePALGrid->ident.name)); // note: name-ID filled in automatically
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cout << "simple PAL Grid: " << simplePALGrid->ident << endl;
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CHECK (Time(0,2) == simplePALGrid->timeOf(50));
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CHECK (Time(0,2) == simplePALGrid->timeOf(FSecs(2)));
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}
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};
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/** Register this test class... */
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LAUNCHER (TimeGridBasics_test, "unit asset");
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}}}} // namespace steam::asset::meta::test
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