Ichthyostega
47ae4f237c
In-depth investigation and reasoning highlighted another problem, which could lead to memory corruption in rare cases; in the end I found a solution by caching the ''address'' of the current Epoch and re-validating this address on each Epoch-overflow. After some difficulties getting any reliable measurement for a Release-build, it turned out that this solution even ''improves performance by 22%'' Remark-1: the static blockFlow::Config prevents simple measurements by just recompiling one translation unit; it is necessary to build the relevant parts of Vault-layer with optimisation to get reliable numbers Remark-2: performing a full non-DEBUG build highlighted two missing header-inclusions to allow for the necessary template specialisations.
140 lines
4.8 KiB
C++
140 lines
4.8 KiB
C++
/*
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OutputSlotProtocol(Test) - covering the basic usage cycle of an output slot
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Copyright (C) Lumiera.org
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2011, 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 output-slot-protocol-test.cpp
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** unit test \ref OutputSlotProtocol_test
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*/
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#include "lib/test/run.hpp"
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#include "steam/play/diagnostic-output-slot.hpp"
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#include "steam/engine/buffhandle.hpp"
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#include "steam/engine/buffhandle-attach.hpp"
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#include "steam/engine/testframe.hpp"
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namespace steam {
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namespace play {
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namespace test {
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using steam::engine::BuffHandle;
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using steam::engine::test::testData;
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using steam::engine::test::TestFrame;
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/***************************************************************//**
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* @test verify the OutputSlot interface and base implementation
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* by performing full data exchange cycle. This is a
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* kind of "dry run" for documentation purposes,
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* both the actual OutputSlot implementation
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* as the client using this slot are Mocks.
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*/
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class OutputSlotProtocol_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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verifyStandardCase();
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}
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void
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verifyStandardCase()
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{
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// Create Test fixture.
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// In real usage, the OutputSlot will be preconfigured
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// (Media format, number of channels, physical connections)
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// and then registered with / retrieved from an OutputManager
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OutputSlot& oSlot = DiagnosticOutputSlot::build();
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// Client claims the OutputSlot
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// and opens it for exclusive use.
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OutputSlot::Allocation& alloc = oSlot.allocate();
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// Now the client is able to prepare
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// "calculation streams" for the individual
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// Channels to be output through this slot.
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OutputSlot::OpenedSinks sinks = alloc.getOpenedSinks();
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DataSink sink1 = *sinks;
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DataSink sink2 = *++sinks;
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// within the frame-calculation "loop"
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// we perform a data exchange cycle
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FrameCnt frameNr = 123;
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BuffHandle buff00 = sink1.lockBufferFor (frameNr);
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BuffHandle buff10 = sink2.lockBufferFor (frameNr);
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// rendering process calculates content....
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buff00.accessAs<TestFrame>() = testData(0,0);
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// while further frames might be processed in parallel
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BuffHandle buff11 = sink2.lockBufferFor (++frameNr);
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buff11.accessAs<TestFrame>() = testData(1,1);
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buff10.accessAs<TestFrame>() = testData(1,0);
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// Now it's time to emit the output
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sink2.emit (frameNr-1, buff10);
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sink2.emit (frameNr , buff11);
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sink1.emit (frameNr-1, buff00);
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// that's all for the client
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// Verify sane operation....
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DiagnosticOutputSlot& checker = DiagnosticOutputSlot::access(oSlot);
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CHECK ( checker.frame_was_allocated (0,123));
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CHECK (!checker.frame_was_allocated (0,124));
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CHECK ( checker.frame_was_allocated (1,123));
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CHECK ( checker.frame_was_allocated (1,124));
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CHECK (checker.output_was_closed (0,0));
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CHECK (checker.output_was_closed (1,0));
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CHECK (checker.output_was_closed (1,1));
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CHECK ( checker.output_was_emitted (0,0));
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CHECK (!checker.output_was_emitted (0,1));
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CHECK ( checker.output_was_emitted (1,0));
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CHECK ( checker.output_was_emitted (1,1));
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DiagnosticOutputSlot::OutFrames stream0 = checker.getChannel(0);
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DiagnosticOutputSlot::OutFrames stream1 = checker.getChannel(1);
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CHECK ( stream0);
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CHECK (*stream0 == testData(0,0)); ++stream0;
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CHECK (!stream0);
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CHECK ( stream1);
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CHECK (*stream1 == testData(1,0)); ++stream1;
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CHECK (*stream1 == testData(1,1)); ++stream1;
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CHECK (!stream1);
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}
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};
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/** Register this test class... */
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LAUNCHER (OutputSlotProtocol_test, "unit play");
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}}} // namespace steam::play::test
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