vcl/benchmarks/ScanlineBenchmark.cxx | 98 +++++++++++++++++++++++++++++++++++
1 file changed, 98 insertions(+)
New commits:
commit aad060cf9e35873dec4e2608e33b7f9d32afb11b
Author: Tomaž Vajngerl <tomaz.vajng...@collabora.co.uk>
Date: Mon Jul 24 20:38:46 2017 +0200
benchmark for color component swap - ScanlineBenchmark
Change-Id: Icf737f7efdc386185fabab2fda0b71d73a5dfa36
diff --git a/vcl/benchmarks/ScanlineBenchmark.cxx
b/vcl/benchmarks/ScanlineBenchmark.cxx
new file mode 100644
index 000000000000..83d328b9387f
--- /dev/null
+++ b/vcl/benchmarks/ScanlineBenchmark.cxx
@@ -0,0 +1,98 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <tools/cpuid.hxx>
+
+#include "ScanlineTools.hxx"
+
+// SCOPED NANO TIMER
+#include <functional>
+#include <chrono>
+#include <iostream>
+
+struct ScopedNanoTimer
+{
+ std::string msName;
+ std::chrono::high_resolution_clock::time_point maStart;
+
+ ScopedNanoTimer(std::string sName)
+ : msName(sName)
+ , maStart(std::chrono::high_resolution_clock::now())
+ {}
+
+ ~ScopedNanoTimer(void)
+ {
+ auto aEnd = std::chrono::high_resolution_clock::now();
+ sal_Int64 aDurationInMilliSeconds =
std::chrono::duration_cast<std::chrono::milliseconds>(aEnd - maStart).count();
+ if (aDurationInMilliSeconds > 10)
+ std::cout << msName << " time : " << aDurationInMilliSeconds << "
ms" << std::endl;
+ }
+};
+
+namespace vcl
+{
+
+namespace benchmark
+{
+
+void benchmarkConvertScanlineRGBAtoBGRA()
+{
+ sal_uInt8 R = 1;
+ sal_uInt8 G = 100;
+ sal_uInt8 B = 57;
+ sal_uInt8 A = 255;
+
+ sal_uInt8 aPixelSource[] = { R, G, B, A };
+
+ std::vector<sal_uInt8> aSource(2000 * 4);
+ std::vector<sal_uInt8> aDestination(2000 * 4);
+
+ for (size_t i = 0; i < aSource.size(); ++i)
+ {
+ aSource[i] = aPixelSource[i % 4];
+ }
+
+ const int nNumberOfLoops = 100000;
+
+ {
+ ScopedNanoTimer aTimer("loop");
+ for (int c = 0; c < nNumberOfLoops; c++)
+ {
+ vcl::scanline::swapABCDtoCBAD(aSource.data(), aDestination.data(),
aSource.size());
+ }
+ }
+ if (cpuid::hasSSE2())
+ {
+ ScopedNanoTimer aTimer("sse2");
+ for (int c = 0; c < nNumberOfLoops; c++)
+ {
+ vcl::scanline::swapABCDtoCBAD_SSE2(aSource.data(),
aDestination.data(), aSource.size());
+ }
+ }
+ if (cpuid::hasSSSE3())
+ {
+ ScopedNanoTimer aTimer("ssse3");
+ for (int c = 0; c < nNumberOfLoops; c++)
+ {
+ vcl::scanline::swapABCDtoCBAD_SSSE3(aSource.data(),
aDestination.data(), aSource.size());
+ }
+ }
+ if (cpuid::hasAVX2())
+ {
+ ScopedNanoTimer aTimer("avx2");
+ for (int c = 0; c < nNumberOfLoops; c++)
+ {
+ vcl::scanline::swapABCDtoCBAD_AVX2(aSource.data(),
aDestination.data(), aSource.size());
+ }
+ }
+}
+
+} // anonymous namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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