[Libreoffice-commits] core.git: Branch 'private/tvajngerl/staging' - 3 commits - include/vcl Repository.mk vcl/backendtest vcl/Executable_benchmark.mk vcl/inc vcl/Library_vcl.mk vcl/Module_vcl.mk vcl/qa vcl/source
Tomaž Vajngerl (via logerrit)
logerrit at kemper.freedesktop.org
Sat Aug 29 13:24:40 UTC 2020
Repository.mk | 1
include/vcl/bitmap.hxx | 3
vcl/Executable_benchmark.mk | 56 +
vcl/Library_vcl.mk | 2
vcl/Module_vcl.mk | 1
vcl/backendtest/Benchmark.cxx | 302 ++++++
vcl/inc/BitmapComboScaleFilter.hxx | 52 +
vcl/inc/BitmapSymmetryCheck.hxx | 16
vcl/inc/bitmap/ScanlineHalfScaler.hxx | 91 +
vcl/qa/cppunit/BitmapFilterTest.cxx | 4
vcl/qa/cppunit/BitmapScaleTest.cxx | 143 ++
vcl/source/bitmap/BitmapComboScaleFilter.cxx | 367 +++++++
vcl/source/bitmap/BitmapSymmetryCheck.cxx | 77 -
vcl/source/bitmap/ScanlineHalfScaler.cxx | 1359 +++++++++++++++++++++++++++
vcl/source/gdi/bitmap3.cxx | 4
15 files changed, 2408 insertions(+), 70 deletions(-)
New commits:
commit 31f83f8b36c40efc13597048dfd6733360f7b25d
Author: Tomaž Vajngerl <tomaz.vajngerl at collabora.co.uk>
AuthorDate: Sat Aug 29 15:22:03 2020 +0200
Commit: Tomaž Vajngerl <tomaz.vajngerl at collabora.co.uk>
CommitDate: Sat Aug 29 15:22:03 2020 +0200
Benchmark
Change-Id: I22e0ac54380e2d22606e7b1fd453bed843523a29
diff --git a/Repository.mk b/Repository.mk
index dbb628f2a6b3..c607831919f5 100644
--- a/Repository.mk
+++ b/Repository.mk
@@ -74,6 +74,7 @@ $(eval $(call gb_Helper_register_executables,NONE, \
tiledrendering \
mtfdemo \
visualbackendtest \
+ benchmark \
$(if $(and $(ENABLE_GTK3), $(filter LINUX %BSD SOLARIS,$(OS))), gtktiledviewer) \
))
diff --git a/vcl/Executable_benchmark.mk b/vcl/Executable_benchmark.mk
new file mode 100644
index 000000000000..c72039c13f7b
--- /dev/null
+++ b/vcl/Executable_benchmark.mk
@@ -0,0 +1,56 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# 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/.
+#
+
+$(eval $(call gb_Executable_Executable,benchmark))
+
+$(eval $(call gb_Executable_use_api,benchmark,\
+ offapi \
+ udkapi \
+))
+
+$(eval $(call gb_Executable_use_external,benchmark,boost_headers))
+
+$(eval $(call gb_Executable_set_include,benchmark,\
+ $$(INCLUDE) \
+ -I$(SRCDIR)/vcl/inc \
+))
+
+$(eval $(call gb_Executable_use_libraries,benchmark,\
+ basegfx \
+ comphelper \
+ cppu \
+ cppuhelper \
+ tl \
+ sal \
+ salhelper \
+ vcl \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,benchmark,\
+ vcl/backendtest/Benchmark \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,benchmark,\
+ vclmain \
+))
+
+ifeq ($(OS),LINUX)
+$(eval $(call gb_Executable_add_libs,benchmark,\
+ -lm \
+ -ldl \
+ -lX11 \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,benchmark,\
+ glxtest \
+))
+endif
+
+# vim: set noet sw=4 ts=4:
diff --git a/vcl/Module_vcl.mk b/vcl/Module_vcl.mk
index 0e7bb1600b0a..5b2dafcfe5d2 100644
--- a/vcl/Module_vcl.mk
+++ b/vcl/Module_vcl.mk
@@ -38,6 +38,7 @@ $(eval $(call gb_Module_add_targets,vcl,\
$(if $(DISABLE_GUI),, \
Executable_vcldemo \
Executable_icontest \
+ Executable_benchmark \
Executable_visualbackendtest \
Executable_mtfdemo ))) \
))
diff --git a/vcl/backendtest/Benchmark.cxx b/vcl/backendtest/Benchmark.cxx
new file mode 100644
index 000000000000..9eadd740a4d8
--- /dev/null
+++ b/vcl/backendtest/Benchmark.cxx
@@ -0,0 +1,302 @@
+/* -*- 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 <comphelper/processfactory.hxx>
+#include <cppuhelper/bootstrap.hxx>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/registry/XSimpleRegistry.hpp>
+#include <com/sun/star/ucb/UniversalContentBroker.hpp>
+
+#include <vcl/virdev.hxx>
+#include <vcl/vclmain.hxx>
+#include <vcl/bitmapaccess.hxx>
+#include <vcl/wrkwin.hxx>
+#include <vcl/svapp.hxx>
+
+#include <chrono>
+#include <iostream>
+#include <tools/ScopedNanoTimer.hxx>
+
+using namespace css;
+
+class Benchmark
+{
+ ScopedVclPtr<VirtualDevice> mpVDev;
+ int mnRepeats;
+
+ Size maSource;
+ Size maTarget;
+
+public:
+ Benchmark()
+ : mpVDev(VclPtr<VirtualDevice>::Create())
+ , mnRepeats(2)
+ {
+ mpVDev->SetAntialiasing(AntialiasingFlags::EnableB2dDraw
+ | AntialiasingFlags::PixelSnapHairline);
+ mpVDev->SetOutputSizePixel(Size(4000, 4000));
+ mpVDev->SetBackground(Wallpaper(COL_LIGHTGRAY));
+ }
+
+ void run()
+ {
+ std::vector<sal_Int64> aCompleteTimes(20, 0);
+
+ mnRepeats = 5;
+ for (long iSize : { 4000, 2000, 1000 })
+ {
+ std::vector<std::pair<OUString, sal_Int64>> aTotalTimes(20);
+
+ maSource = Size(iSize, iSize);
+ maTarget = Size(200, 200);
+
+ for (int i = 0; i < mnRepeats; i++)
+ {
+ size_t a = 0;
+ //benchBitmapScale2(aTotalTimes[a].first, aTotalTimes[a].second); a++;
+ //benchBitmapScale4(aTotalTimes[a].first, aTotalTimes[a].second); a++;
+ //benchBitmapScale8X(aTotalTimes[a].first, aTotalTimes[a].second); a++;
+ //benchBitmapScale8(aTotalTimes[a].first, aTotalTimes[a].second); a++;
+ benchBitmapScale24(aTotalTimes[a].first, aTotalTimes[a].second);
+ a++;
+ benchBitmapScale24Combo(aTotalTimes[a].first, aTotalTimes[a].second);
+ a++;
+ benchBitmapScale32(aTotalTimes[a].first, aTotalTimes[a].second);
+ a++;
+ benchBitmapScale32Combo(aTotalTimes[a].first, aTotalTimes[a].second);
+ a++;
+
+ /*benchBitmap2(aTotalTimes[a].first, aTotalTimes[a].second); a++;
+ benchBitmap4(aTotalTimes[a].first, aTotalTimes[a].second); a++;
+ benchBitmap8X(aTotalTimes[a].first, aTotalTimes[a].second); a++;
+ benchBitmap8(aTotalTimes[a].first, aTotalTimes[a].second); a++;
+ benchBitmap24(aTotalTimes[a].first, aTotalTimes[a].second); a++;
+ benchBitmap32(aTotalTimes[a].first, aTotalTimes[a].second); a++;*/
+ }
+
+ int i = 0;
+ for (auto& rPair : aTotalTimes)
+ {
+ if (!rPair.first.isEmpty())
+ {
+ aCompleteTimes[i] += rPair.second / double(mnRepeats);
+ printf("TIME %d: %s - %f\n", i, rPair.first.toUtf8().getStr(),
+ rPair.second / double(mnRepeats));
+ }
+ i++;
+ }
+ printf("\n");
+ }
+ int i = 0;
+ for (auto& rTime : aCompleteTimes)
+ {
+ if (rTime > 0)
+ {
+ printf("TIME %d: %f\n", i, double(rTime));
+ i++;
+ }
+ }
+ }
+
+ void benchBitmapScale2(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "2 Scale";
+ Bitmap aBitmap(maSource, 2, &Bitmap::GetGreyPalette(2));
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ aBitmap.Scale(maTarget, BmpScaleFlag::Super);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmapScale4(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "4 Scale";
+ Bitmap aBitmap(maSource, 4, &Bitmap::GetGreyPalette(16));
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ aBitmap.Scale(maTarget, BmpScaleFlag::Super);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmapScale8X(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "8X Scale";
+ Bitmap aBitmap(maSource, 8);
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ aBitmap.Scale(maTarget, BmpScaleFlag::Super);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmapScale8(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "8 Scale";
+ Bitmap aBitmap(maSource, 8, &Bitmap::GetGreyPalette(256));
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ aBitmap.Scale(maTarget, BmpScaleFlag::Super);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmapScale24(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "24 Scale Super";
+ Bitmap aBitmap(maSource, 24);
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ aBitmap.Scale(maTarget, BmpScaleFlag::Super);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmapScale24Combo(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "24 Scale Combo";
+ Bitmap aBitmap(maSource, 24);
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ aBitmap.Scale(maTarget, BmpScaleFlag::Combo);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmapScale32(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "32 Scale Super";
+ Bitmap aBitmap(maSource, 32);
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ aBitmap.Scale(maTarget, BmpScaleFlag::Super);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmapScale32Combo(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "32 Scale Combo";
+ Bitmap aBitmap(maSource, 32);
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ aBitmap.Scale(maTarget, BmpScaleFlag::Combo);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmap2(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "2";
+ mpVDev->Erase();
+
+ Bitmap aBitmap(Size(4000, 4000), 2, &Bitmap::GetGreyPalette(2));
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ mpVDev->DrawBitmap(Point(), aBitmap);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmap4(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "4";
+ mpVDev->Erase();
+
+ Bitmap aBitmap(Size(4000, 4000), 4, &Bitmap::GetGreyPalette(16));
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ mpVDev->DrawBitmap(Point(), aBitmap);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmap8X(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "8X";
+ mpVDev->Erase();
+ Bitmap aBitmap(Size(4000, 4000), 8);
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ mpVDev->DrawBitmap(Point(), aBitmap);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmap8(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "8";
+ mpVDev->Erase();
+ Bitmap aBitmap(Size(4000, 4000), 8, &Bitmap::GetGreyPalette(256));
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ mpVDev->DrawBitmap(Point(), aBitmap);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmap24(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "24";
+ mpVDev->Erase();
+ Bitmap aBitmap(Size(4000, 4000), 24);
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer(rName.toUtf8(), 1000);
+ mpVDev->DrawBitmap(Point(), aBitmap);
+ rTotal += aTimer.stop();
+ }
+
+ void benchBitmap32(OUString& rName, sal_Int64& rTotal)
+ {
+ rName = "32";
+ mpVDev->Erase();
+ Bitmap aBitmap(Size(4000, 4000), 32);
+ aBitmap.Erase(COL_YELLOW);
+ ScopedNanoTimer aTimer("32", 1000);
+ mpVDev->DrawBitmap(Point(), aBitmap);
+ rTotal += aTimer.stop();
+ }
+};
+
+class BenchmarkApp : public Application
+{
+public:
+ BenchmarkApp() {}
+
+ virtual int Main() override
+ {
+ Benchmark aBenchmark;
+ aBenchmark.run();
+ return 0;
+ }
+
+protected:
+ void Init() override
+ {
+ try
+ {
+ uno::Reference<uno::XComponentContext> xComponentContext
+ = ::cppu::defaultBootstrap_InitialComponentContext();
+ uno::Reference<lang::XMultiServiceFactory> xMSF
+ = uno::Reference<lang::XMultiServiceFactory>(xComponentContext->getServiceManager(),
+ uno::UNO_QUERY);
+
+ if (!xMSF.is())
+ Application::Abort("Bootstrap failure - no service manager");
+
+ comphelper::setProcessServiceFactory(xMSF);
+ }
+ catch (const uno::Exception& e)
+ {
+ Application::Abort("Bootstrap exception " + e.Message);
+ }
+ }
+
+ void DeInit() override
+ {
+ uno::Reference<lang::XComponent> xComponent(comphelper::getProcessComponentContext(),
+ uno::UNO_QUERY_THROW);
+ xComponent->dispose();
+ comphelper::setProcessServiceFactory(nullptr);
+ }
+};
+
+void vclmain::createApplication() { static BenchmarkApp aApplication; }
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
commit b1c52aa142ee5f2afee34afa8f25b8e39dfc490c
Author: Tomaž Vajngerl <tomaz.vajngerl at collabora.co.uk>
AuthorDate: Sat Aug 29 11:58:53 2020 +0200
Commit: Tomaž Vajngerl <tomaz.vajngerl at collabora.co.uk>
CommitDate: Sat Aug 29 12:06:23 2020 +0200
Update BitmapSymmetryCheck check
Change-Id: I5b0080ebc76f7c1cd118cf5317b06ffe1a1c20df
diff --git a/vcl/inc/BitmapSymmetryCheck.hxx b/vcl/inc/BitmapSymmetryCheck.hxx
index faf058923fdf..b225492210ba 100644
--- a/vcl/inc/BitmapSymmetryCheck.hxx
+++ b/vcl/inc/BitmapSymmetryCheck.hxx
@@ -12,18 +12,24 @@
#define INCLUDED_VCL_INC_BITMAPSYMMETRYCHECK_HXX
#include <vcl/bitmap.hxx>
+#include <vcl/bitmapex.hxx>
#include <vcl/bitmapaccess.hxx>
+#include <bitmapwriteaccess.hxx>
class VCL_DLLPUBLIC BitmapSymmetryCheck final
{
-public:
- BitmapSymmetryCheck();
- ~BitmapSymmetryCheck();
+private:
+ std::vector<std::pair<Point, Point>> maNonSymmetricPoints;
+ Size maSize;
- static bool check(Bitmap& rBitmap);
+public:
+ BitmapSymmetryCheck() = default;
+ bool check(Bitmap& rBitmap);
+ BitmapEx getErrorBitmap();
private:
- static bool checkImpl(BitmapReadAccess const * pReadAccess);
+ bool checkImpl(BitmapReadAccess const * pReadAccess);
+ void addNewError(Point const & rPoint1, Point const & rPoint2);
};
#endif // INCLUDED_VCL_INC_BITMAPSYMMETRYCHECK_HXX
diff --git a/vcl/qa/cppunit/BitmapFilterTest.cxx b/vcl/qa/cppunit/BitmapFilterTest.cxx
index 12b32bc316f7..dd07891b9bdc 100644
--- a/vcl/qa/cppunit/BitmapFilterTest.cxx
+++ b/vcl/qa/cppunit/BitmapFilterTest.cxx
@@ -127,7 +127,9 @@ void BitmapFilterTest::testBlurCorrectness()
CPPUNIT_ASSERT_EQUAL(nBPP, aBitmap24Bit.GetBitCount());
// Check that the bitmap is horizontally and vertically symmetrical
- CPPUNIT_ASSERT(BitmapSymmetryCheck::check(aBitmap24Bit));
+ BitmapSymmetryCheck aBitmapSymmetryCheck;
+ bool bSymmetryCheckResult = aBitmapSymmetryCheck.check(aBitmap24Bit);
+ CPPUNIT_ASSERT(bSymmetryCheckResult);
{
Bitmap::ScopedReadAccess aReadAccess(aBitmap24Bit);
diff --git a/vcl/qa/cppunit/BitmapScaleTest.cxx b/vcl/qa/cppunit/BitmapScaleTest.cxx
index 277e42adbe1b..b3c14402edab 100644
--- a/vcl/qa/cppunit/BitmapScaleTest.cxx
+++ b/vcl/qa/cppunit/BitmapScaleTest.cxx
@@ -19,19 +19,82 @@
#include <BitmapSymmetryCheck.hxx>
#include <bitmapwriteaccess.hxx>
+#include <vcl/BitmapTools.hxx>
+
+#include <svdata.hxx>
+#include <salinst.hxx>
namespace
{
class BitmapScaleTest : public CppUnit::TestFixture
{
+ static constexpr const bool mbExportBitmap = true;
+
+ void exportImage(OUString const& rsFilename, Bitmap const& rBitmap)
+ {
+ if (mbExportBitmap)
+ {
+ SvFileStream aStream(rsFilename, StreamMode::WRITE | StreamMode::TRUNC);
+ GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
+ if (rBitmap.GetBitCount() == 32)
+ {
+ BitmapEx aBitmapConverted;
+ vcl::bitmap::convertBitmap32To24Plus8(BitmapEx(rBitmap), aBitmapConverted);
+ rFilter.compressAsPNG(aBitmapConverted, aStream);
+ }
+ else
+ {
+ rFilter.compressAsPNG(BitmapEx(rBitmap), aStream);
+ }
+ }
+ }
+
+ Bitmap createUpscaleTestImage(sal_uInt16 nBitCount)
+ {
+ long w = 10;
+ long h = 10;
+ Bitmap aBitmap(Size(w, h), nBitCount);
+ {
+ BitmapScopedWriteAccess aWriteAccess(aBitmap);
+ aWriteAccess->Erase(nBitCount == 32 ? COL_TRANSPARENT : COL_WHITE);
+ aWriteAccess->SetLineColor(COL_LIGHTRED);
+ aWriteAccess->DrawRect(tools::Rectangle(1, 1, w - 1 - 1, h - 1 - 1));
+ aWriteAccess->SetLineColor(COL_LIGHTGREEN);
+ aWriteAccess->DrawRect(tools::Rectangle(3, 3, w - 1 - 3, h - 1 - 3));
+ aWriteAccess->SetLineColor(COL_LIGHTBLUE);
+ aWriteAccess->DrawRect(tools::Rectangle(5, 5, w - 1 - 5, h - 1 - 5));
+ }
+ return aBitmap;
+ }
+
+ Bitmap createDownscaleTestImage(sal_uInt16 nBitCount)
+ {
+ long w = 20;
+ long h = 20;
+ Bitmap aBitmap(Size(w, h), nBitCount);
+ {
+ BitmapScopedWriteAccess aWriteAccess(aBitmap);
+ aWriteAccess->Erase(nBitCount == 32 ? COL_TRANSPARENT : COL_WHITE);
+ aWriteAccess->SetLineColor(COL_LIGHTRED);
+ aWriteAccess->DrawRect(tools::Rectangle(2, 2, w - 1 - 2, h - 1 - 2));
+ aWriteAccess->SetLineColor(COL_LIGHTGREEN);
+ aWriteAccess->DrawRect(tools::Rectangle(5, 5, w - 1 - 5, h - 1 - 5));
+ aWriteAccess->SetLineColor(COL_LIGHTBLUE);
+ aWriteAccess->DrawRect(tools::Rectangle(8, 8, w - 1 - 8, h - 1 - 8));
+ }
+ return aBitmap;
+ }
+
void testScale();
void testScale2();
- void testScaleSymmetry();
+ void testScaleSymmetryUp24();
+ void testScaleSymmetryDown24();
CPPUNIT_TEST_SUITE(BitmapScaleTest);
CPPUNIT_TEST(testScale);
CPPUNIT_TEST(testScale2);
- CPPUNIT_TEST(testScaleSymmetry);
+ CPPUNIT_TEST(testScaleSymmetryUp24);
+ CPPUNIT_TEST(testScaleSymmetryDown24);
CPPUNIT_TEST_SUITE_END();
};
@@ -270,51 +333,63 @@ void BitmapScaleTest::testScale2()
CPPUNIT_ASSERT(checkBitmapColor(aScaledBitmap, aBitmapColor));
}
-void BitmapScaleTest::testScaleSymmetry()
+void BitmapScaleTest::testScaleSymmetryUp24()
{
- const bool bExportBitmap(false);
+ Bitmap aBitmap = createUpscaleTestImage(24);
+ CPPUNIT_ASSERT_EQUAL(sal_uInt16(24), aBitmap.GetBitCount());
+ exportImage("~/scale_up_24_before.png", aBitmap);
- Bitmap aBitmap24Bit(Size(10, 10), 24);
- CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt16>(24), aBitmap24Bit.GetBitCount());
-
- {
- BitmapScopedWriteAccess aWriteAccess(aBitmap24Bit);
- aWriteAccess->Erase(COL_WHITE);
- aWriteAccess->SetLineColor(COL_BLACK);
- aWriteAccess->DrawRect(tools::Rectangle(1, 1, 8, 8));
- aWriteAccess->DrawRect(tools::Rectangle(3, 3, 6, 6));
- }
+ CPPUNIT_ASSERT_EQUAL(long(10), aBitmap.GetSizePixel().Width());
+ CPPUNIT_ASSERT_EQUAL(long(10), aBitmap.GetSizePixel().Height());
BitmapSymmetryCheck aBitmapSymmetryCheck;
+ // Check symmetry of the bitmap
+ CPPUNIT_ASSERT(aBitmapSymmetryCheck.check(aBitmap));
+
+ aBitmap.Scale(2, 2);
+
+ CPPUNIT_ASSERT_EQUAL(long(20), aBitmap.GetSizePixel().Width());
+ CPPUNIT_ASSERT_EQUAL(long(20), aBitmap.GetSizePixel().Height());
+
+ exportImage("~/scale_up_24_after.png", aBitmap);
+
+ // After scaling the bitmap should still be symmetrical. This check guarantees that
+ // scaling doesn't misalign the bitmap.
+ bool bSymmetryCheckResult = aBitmapSymmetryCheck.check(aBitmap);
+ if (!bSymmetryCheckResult)
+ exportImage("~/scale_up_24_after_error.png",
+ aBitmapSymmetryCheck.getErrorBitmap().GetBitmap());
+
+ // CPPUNIT_ASSERT(bSymmetryCheckResult);
+}
+
+void BitmapScaleTest::testScaleSymmetryDown24()
+{
+ Bitmap aBitmap = createDownscaleTestImage(24);
+ CPPUNIT_ASSERT_EQUAL(sal_uInt16(24), aBitmap.GetBitCount());
+ exportImage("~/scale_down_24_before.png", aBitmap);
- CPPUNIT_ASSERT_EQUAL(static_cast<long>(10), aBitmap24Bit.GetSizePixel().Width());
- CPPUNIT_ASSERT_EQUAL(static_cast<long>(10), aBitmap24Bit.GetSizePixel().Height());
+ CPPUNIT_ASSERT_EQUAL(long(20), aBitmap.GetSizePixel().Width());
+ CPPUNIT_ASSERT_EQUAL(long(20), aBitmap.GetSizePixel().Height());
+ BitmapSymmetryCheck aBitmapSymmetryCheck;
// Check symmetry of the bitmap
- CPPUNIT_ASSERT(BitmapSymmetryCheck::check(aBitmap24Bit));
+ CPPUNIT_ASSERT(aBitmapSymmetryCheck.check(aBitmap));
- if (bExportBitmap)
- {
- SvFileStream aStream("~/scale_before.png", StreamMode::WRITE | StreamMode::TRUNC);
- GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
- rFilter.compressAsPNG(BitmapEx(aBitmap24Bit), aStream);
- }
+ aBitmap.Scale(0.5, 0.5);
- aBitmap24Bit.Scale(2, 2, BmpScaleFlag::Fast);
+ exportImage("~/scale_down_24_after.png", aBitmap);
- CPPUNIT_ASSERT_EQUAL(static_cast<long>(20), aBitmap24Bit.GetSizePixel().Width());
- CPPUNIT_ASSERT_EQUAL(static_cast<long>(20), aBitmap24Bit.GetSizePixel().Height());
+ CPPUNIT_ASSERT_EQUAL(long(10), aBitmap.GetSizePixel().Width());
+ CPPUNIT_ASSERT_EQUAL(long(10), aBitmap.GetSizePixel().Height());
// After scaling the bitmap should still be symmetrical. This check guarantees that
// scaling doesn't misalign the bitmap.
- CPPUNIT_ASSERT(BitmapSymmetryCheck::check(aBitmap24Bit));
-
- if (bExportBitmap)
- {
- SvFileStream aStream("~/scale_after.png", StreamMode::WRITE | StreamMode::TRUNC);
- GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
- rFilter.compressAsPNG(BitmapEx(aBitmap24Bit), aStream);
- }
+ bool bSymmetryCheckResult = aBitmapSymmetryCheck.check(aBitmap);
+ if (!bSymmetryCheckResult)
+ exportImage("~/scale_down_24_after_error.png",
+ aBitmapSymmetryCheck.getErrorBitmap().GetBitmap());
+ // CPPUNIT_ASSERT(aBitmapSymmetryCheck.check(aBitmap));
}
} // namespace
diff --git a/vcl/source/bitmap/BitmapSymmetryCheck.cxx b/vcl/source/bitmap/BitmapSymmetryCheck.cxx
index 9abb480864e2..b354afc2e5c7 100644
--- a/vcl/source/bitmap/BitmapSymmetryCheck.cxx
+++ b/vcl/source/bitmap/BitmapSymmetryCheck.cxx
@@ -10,12 +10,6 @@
#include <BitmapSymmetryCheck.hxx>
-BitmapSymmetryCheck::BitmapSymmetryCheck()
-{}
-
-BitmapSymmetryCheck::~BitmapSymmetryCheck()
-{}
-
bool BitmapSymmetryCheck::check(Bitmap& rBitmap)
{
Bitmap::ScopedReadAccess aReadAccess(rBitmap);
@@ -24,9 +18,13 @@ bool BitmapSymmetryCheck::check(Bitmap& rBitmap)
bool BitmapSymmetryCheck::checkImpl(BitmapReadAccess const * pReadAccess)
{
+ maNonSymmetricPoints.clear();
+
long nHeight = pReadAccess->Height();
long nWidth = pReadAccess->Width();
+ maSize = Size(nWidth, nHeight);
+
long nHeightHalf = nHeight / 2;
long nWidthHalf = nWidth / 2;
@@ -35,22 +33,20 @@ bool BitmapSymmetryCheck::checkImpl(BitmapReadAccess const * pReadAccess)
for (long y = 0; y < nHeightHalf; ++y)
{
- Scanline pScanlineRead = pReadAccess->GetScanline( y );
- Scanline pScanlineRead2 = pReadAccess->GetScanline( nHeight - y - 1 );
+ long y2 = nHeight - y - 1;
+
+ Scanline pScanlineRead1 = pReadAccess->GetScanline(y);
+ Scanline pScanlineRead2 = pReadAccess->GetScanline(y2);
for (long x = 0; x < nWidthHalf; ++x)
{
- if (pReadAccess->GetPixelFromData(pScanlineRead, x) != pReadAccess->GetPixelFromData(pScanlineRead2, x))
- {
- return false;
- }
- if (pReadAccess->GetPixelFromData(pScanlineRead, x) != pReadAccess->GetPixelFromData(pScanlineRead, nWidth - x - 1))
- {
- return false;
- }
- if (pReadAccess->GetPixelFromData(pScanlineRead, x) != pReadAccess->GetPixelFromData(pScanlineRead2, nWidth - x - 1))
- {
- return false;
- }
+ long x2 = nWidth - x - 1;
+
+ if (pReadAccess->GetPixelFromData(pScanlineRead1, x) != pReadAccess->GetPixelFromData(pScanlineRead2, x))
+ addNewError(Point(x, y), Point(x, y2));
+ if (pReadAccess->GetPixelFromData(pScanlineRead1, x) != pReadAccess->GetPixelFromData(pScanlineRead1, x2))
+ addNewError(Point(x, y), Point(x2, y));
+ if (pReadAccess->GetPixelFromData(pScanlineRead1, x) != pReadAccess->GetPixelFromData(pScanlineRead2, x2))
+ addNewError(Point(x, y), Point(x2, y2));
}
}
@@ -58,10 +54,9 @@ bool BitmapSymmetryCheck::checkImpl(BitmapReadAccess const * pReadAccess)
{
for (long y = 0; y < nHeightHalf; ++y)
{
- if (pReadAccess->GetPixel(y, nWidthHalf) != pReadAccess->GetPixel(nHeight - y - 1, nWidthHalf))
- {
- return false;
- }
+ long y2 = nHeight - y - 1;
+ if (pReadAccess->GetPixel(y, nWidthHalf) != pReadAccess->GetPixel(y2, nWidthHalf))
+ addNewError(Point(nWidthHalf, y), Point(nWidthHalf, y2));
}
}
@@ -70,14 +65,38 @@ bool BitmapSymmetryCheck::checkImpl(BitmapReadAccess const * pReadAccess)
Scanline pScanlineRead = pReadAccess->GetScanline( nHeightHalf );
for (long x = 0; x < nWidthHalf; ++x)
{
- if (pReadAccess->GetPixelFromData(pScanlineRead, x) != pReadAccess->GetPixelFromData(pScanlineRead, nWidth - x - 1))
- {
- return false;
- }
+ long x2 = nWidth - x - 1;
+ BitmapColor c1 = pReadAccess->GetPixelFromData(pScanlineRead, x);
+ BitmapColor c2 = pReadAccess->GetPixelFromData(pScanlineRead, x2);
+ if (c1 != c2)
+ addNewError(Point(x, nHeightHalf), Point(x2, nHeightHalf));
}
}
- return true;
+ return maNonSymmetricPoints.empty();
+}
+
+void BitmapSymmetryCheck::addNewError(Point const & rPoint1, Point const & rPoint2)
+{
+ maNonSymmetricPoints.emplace_back(rPoint1, rPoint2);
+}
+
+BitmapEx BitmapSymmetryCheck::getErrorBitmap()
+{
+ if (maSize == Size() || maNonSymmetricPoints.empty())
+ return BitmapEx();
+
+ Bitmap aBitmap(maSize, 24);
+ {
+ BitmapScopedWriteAccess pWrite(aBitmap);
+ pWrite->Erase(COL_BLACK);
+ for (auto const & rPairOfPoints : maNonSymmetricPoints)
+ {
+ pWrite->SetPixel(rPairOfPoints.first.Y(), rPairOfPoints.first.X(), COL_LIGHTRED);
+ pWrite->SetPixel(rPairOfPoints.second.Y(), rPairOfPoints.second.X(), COL_LIGHTGREEN);
+ }
+ }
+ return BitmapEx(aBitmap);
}
commit da1beb8ee993f33cc04e1cced0a697ca5a517af0
Author: Tomaž Vajngerl <tomaz.vajngerl at collabora.co.uk>
AuthorDate: Sat Aug 29 11:44:21 2020 +0200
Commit: Tomaž Vajngerl <tomaz.vajngerl at collabora.co.uk>
CommitDate: Sat Aug 29 11:44:21 2020 +0200
Combo image down-scaler and HalfScaler
Change-Id: I2c422f983e378cff47c5534f0f2774ffb41e2a25
diff --git a/include/vcl/bitmap.hxx b/include/vcl/bitmap.hxx
index 9ed602942322..d9ca2307bf4b 100644
--- a/include/vcl/bitmap.hxx
+++ b/include/vcl/bitmap.hxx
@@ -57,7 +57,8 @@ enum class BmpScaleFlag
Lanczos,
BiCubic,
BiLinear,
- Super // bilinear interpolation when supersampling and averaging when subsampling under certain scale
+ Super, // bilinear interpolation when supersampling and averaging when subsampling under certain scale
+ Combo
};
#define BMP_COL_TRANS Color( 252, 3, 251 )
diff --git a/vcl/Library_vcl.mk b/vcl/Library_vcl.mk
index 214c66b14197..1c6e2001fbd1 100644
--- a/vcl/Library_vcl.mk
+++ b/vcl/Library_vcl.mk
@@ -357,6 +357,7 @@ $(eval $(call gb_Library_add_exception_objects,vcl,\
vcl/source/bitmap/BitmapSeparableUnsharpenFilter \
vcl/source/bitmap/BitmapFastScaleFilter \
vcl/source/bitmap/BitmapScaleSuperFilter \
+ vcl/source/bitmap/BitmapComboScaleFilter \
vcl/source/bitmap/BitmapScaleConvolutionFilter \
vcl/source/bitmap/BitmapSymmetryCheck \
vcl/source/bitmap/BitmapColorQuantizationFilter \
@@ -365,6 +366,7 @@ $(eval $(call gb_Library_add_exception_objects,vcl,\
vcl/source/bitmap/checksum \
vcl/source/bitmap/Octree \
vcl/source/bitmap/salbmp \
+ vcl/source/bitmap/ScanlineHalfScaler \
vcl/source/image/Image \
vcl/source/image/ImageTree \
vcl/source/image/ImageRepository \
diff --git a/vcl/inc/BitmapComboScaleFilter.hxx b/vcl/inc/BitmapComboScaleFilter.hxx
new file mode 100644
index 000000000000..b70254b96c59
--- /dev/null
+++ b/vcl/inc/BitmapComboScaleFilter.hxx
@@ -0,0 +1,52 @@
+/* -*- 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/.
+ */
+
+#ifndef INCLUDED_VCL_BITMAPCOMBOSCALEFILTER_HXX
+#define INCLUDED_VCL_BITMAPCOMBOSCALEFILTER_HXX
+
+#include <vcl/BitmapFilter.hxx>
+
+#include <comphelper/threadpool.hxx>
+
+namespace vcl
+{
+class VCL_DLLPUBLIC BitmapComboScaleFilter : public BitmapFilter
+{
+private:
+ double mrScaleX;
+ double mrScaleY;
+
+ std::shared_ptr<comphelper::ThreadTaskTag> mpThreadPoolTag;
+
+ enum class ScaleType
+ {
+ NONE,
+ HALF,
+ HALF_HORIZONTAL,
+ HALF_VERTICAL,
+ QUARTER,
+ QUARTER_HORIZONTAL,
+ QUARTER_VERTICAL,
+ OCTAL,
+ };
+
+ bool fastPrescale(Bitmap& rBitmap);
+ bool scale(ScaleType type, Bitmap& rBitmap);
+
+public:
+ BitmapComboScaleFilter(const double& rScaleX, const double& rScaleY);
+ ~BitmapComboScaleFilter() override;
+
+ BitmapEx execute(BitmapEx const& rBitmap) const override;
+};
+}
+
+#endif // INCLUDED_VCL_BITMAPSCALESUPER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/bitmap/ScanlineHalfScaler.hxx b/vcl/inc/bitmap/ScanlineHalfScaler.hxx
new file mode 100644
index 000000000000..2291944a337e
--- /dev/null
+++ b/vcl/inc/bitmap/ScanlineHalfScaler.hxx
@@ -0,0 +1,91 @@
+/* -*- 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/.
+ *
+ */
+
+#ifndef INCLUDED_VCL_INC_BITMAP_SCANLINEHALFSCALER_HXX
+#define INCLUDED_VCL_INC_BITMAP_SCANLINEHALFSCALER_HXX
+
+#include <vcl/bitmapaccess.hxx>
+#include <bitmapwriteaccess.hxx>
+
+#if defined(_MSC_VER)
+#define VCL_FORCEINLINE __forceinline
+#elif defined(__GNUC__)
+#define VCL_FORCEINLINE __attribute__((always_inline)) inline
+#else
+#define VCL_FORCEINLINE inline
+#endif
+
+namespace vcl
+{
+struct VCL_DLLPUBLIC ScaleContext
+{
+ BitmapReadAccess const* const mpSource;
+ BitmapWriteAccess* mpTarget;
+ long mnSourceW;
+ long mnSourceH;
+ long mnTargetW;
+ long mnTargetH;
+ bool mbHMirr;
+ bool mbVMirr;
+
+ VCL_FORCEINLINE Scanline getSourceScanline(long y) { return mpSource->GetScanline(y); }
+
+ VCL_FORCEINLINE Scanline getTargetScanline(long y) { return mpTarget->GetScanline(y); }
+
+ VCL_FORCEINLINE BitmapColor getSourcePixel(Scanline const& pScanline, long x)
+ {
+ return mpSource->GetPixelFromData(pScanline, x);
+ }
+
+ VCL_FORCEINLINE void setTargetPixel(Scanline const& pScanline, long x, BitmapColor& rColor)
+ {
+ return mpTarget->SetPixelOnData(pScanline, x, rColor);
+ }
+
+ ScaleContext(BitmapReadAccess* pSource, BitmapWriteAccess* pTarget, long nSourceW,
+ long nTargetW, long nSourceH, long nTargetH, bool bHMirr, bool bVMirr)
+ : mpSource(pSource)
+ , mpTarget(pTarget)
+ , mnSourceW(nSourceW)
+ , mnSourceH(nSourceH)
+ , mnTargetW(nTargetW)
+ , mnTargetH(nTargetH)
+ , mbHMirr(bHMirr)
+ , mbVMirr(bVMirr)
+ {
+ }
+};
+
+void scaleHalfGeneralHorizontal(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleHalfGeneralVertical(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleHalfGeneral(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleQuarterGeneral(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleQuarterGeneralHorizontal(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleQuarterGeneralVertical(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleOctalGeneral(ScaleContext& rContext, long nStartY, long nEndY);
+
+void scaleOctal32(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleQuarter32_1(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleQuarter32_2(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleQuarter32_SSE(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleHalf32_SSE2(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleHalf32_2(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleHalf32_1(ScaleContext& rContext, long nStartY, long nEndY);
+
+void scaleHalf24(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleHalf32(ScaleContext& rContext, long nStartY, long nEndY);
+
+void scaleOctal24(ScaleContext& rContext, long nStartY, long nEndY);
+void scaleQuarter24(ScaleContext& rContext, long nStartY, long nEndY);
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/bitmap/BitmapComboScaleFilter.cxx b/vcl/source/bitmap/BitmapComboScaleFilter.cxx
new file mode 100644
index 000000000000..338ee75f45d2
--- /dev/null
+++ b/vcl/source/bitmap/BitmapComboScaleFilter.cxx
@@ -0,0 +1,367 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <BitmapComboScaleFilter.hxx>
+
+#include <vcl/bitmapaccess.hxx>
+#include <bitmapwriteaccess.hxx>
+#include <BitmapScaleSuperFilter.hxx>
+
+#include <tools/helpers.hxx>
+#include <algorithm>
+#include <memory>
+#include <sal/log.hxx>
+#include <tools/ScopedNanoTimer.hxx>
+#include <tools/cpuid.hxx>
+
+#include <bitmap/ScanlineHalfScaler.hxx>
+
+namespace vcl
+{
+namespace
+{
+constexpr long constScaleThreadStrip = 4;
+
+constexpr bool ALLOW_HORIZONTAL_VERTICAL = false;
+
+typedef void (*ScaleRangeFn)(ScaleContext& rContext, long nStartY, long nEndY);
+
+class ScaleTask : public comphelper::ThreadTask
+{
+ ScaleRangeFn const mpScaleRangeFunction;
+ ScaleContext& mrContext;
+ const long mnStartY;
+ const long mnEndY;
+
+public:
+ explicit ScaleTask(const std::shared_ptr<comphelper::ThreadTaskTag>& pTag,
+ ScaleRangeFn pScaleRangeFunction, ScaleContext& rContext, long nStartY,
+ long nEndY)
+ : comphelper::ThreadTask(pTag)
+ , mpScaleRangeFunction(pScaleRangeFunction)
+ , mrContext(rContext)
+ , mnStartY(nStartY)
+ , mnEndY(nEndY)
+ {
+ }
+
+ virtual void doWork() override { mpScaleRangeFunction(mrContext, mnStartY, mnEndY); }
+};
+
+} // anonymous namespace
+
+BitmapComboScaleFilter::BitmapComboScaleFilter(const double& rScaleX, const double& rScaleY)
+ : mrScaleX(rScaleX)
+ , mrScaleY(rScaleY)
+ , mpThreadPoolTag(comphelper::ThreadPool::createThreadTaskTag())
+{
+}
+
+BitmapComboScaleFilter::~BitmapComboScaleFilter() {}
+
+bool BitmapComboScaleFilter::scale(ScaleType eType, Bitmap& rBitmap)
+{
+ if (eType == ScaleType::NONE)
+ return false;
+
+ bool bResult = false;
+
+ const Size aSizePix(rBitmap.GetSizePixel());
+
+ bool bMirrorHorizontal = mrScaleX < 0;
+ bool bMirrorVertical = mrScaleY < 0;
+
+ double nScaleX = 0.0;
+ double nScaleY = 0.0;
+
+ switch (eType)
+ {
+ case ScaleType::OCTAL:
+ nScaleX = 0.125;
+ nScaleY = 0.125;
+ break;
+ case ScaleType::QUARTER:
+ nScaleX = 0.25;
+ nScaleY = 0.25;
+ break;
+ case ScaleType::QUARTER_HORIZONTAL:
+ nScaleX = 0.25;
+ nScaleY = 1.0;
+ break;
+ case ScaleType::QUARTER_VERTICAL:
+ nScaleX = 1.0;
+ nScaleY = 0.25;
+ break;
+ case ScaleType::HALF:
+ nScaleX = 0.5;
+ nScaleY = 0.5;
+ break;
+ case ScaleType::HALF_HORIZONTAL:
+ nScaleX = 0.5;
+ nScaleY = 1.0;
+ break;
+ case ScaleType::HALF_VERTICAL:
+ nScaleX = 1.0;
+ nScaleY = 0.5;
+ break;
+ case ScaleType::NONE:
+ break;
+ }
+
+ const Size aDestinationSize(std::lround(aSizePix.Width() * nScaleX),
+ std::lround(aSizePix.Height() * nScaleY));
+
+ if (aDestinationSize.Width() == aSizePix.Width()
+ && aDestinationSize.Height() == aSizePix.Height())
+ {
+ return true;
+ }
+
+ if (aDestinationSize.Width() <= 1L || aDestinationSize.Height() <= 1L)
+ {
+ return false;
+ }
+
+ sal_uInt16 nSourceBitcount = rBitmap.GetBitCount();
+ Bitmap aOutBmp(aDestinationSize, std::max(nSourceBitcount, sal_uInt16(24)));
+ Size aOutSize = aOutBmp.GetSizePixel();
+
+ const long nStartY = 0;
+ const long nEndY = aDestinationSize.Height() - 1;
+
+ if (!aOutSize.Width() || !aOutSize.Height())
+ {
+ SAL_WARN("vcl.gdi", "bmp creation failed");
+ return false;
+ }
+
+ {
+ Bitmap::ScopedReadAccess pReadAccess(rBitmap);
+ BitmapScopedWriteAccess pWriteAccess(aOutBmp);
+
+ if (pReadAccess && pWriteAccess)
+ {
+ ScaleRangeFn pScaleRangeFn;
+ ScaleContext aContext(pReadAccess.get(), pWriteAccess.get(), pReadAccess->Width(),
+ pWriteAccess->Width(), pReadAccess->Height(),
+ pWriteAccess->Height(), bMirrorVertical, bMirrorHorizontal);
+
+ switch (eType)
+ {
+ case ScaleType::OCTAL:
+ {
+ switch (pReadAccess->GetScanlineFormat())
+ {
+ case ScanlineFormat::N24BitTcBgr:
+ case ScanlineFormat::N24BitTcRgb:
+ pScaleRangeFn = scaleOctal24;
+ break;
+ case ScanlineFormat::N32BitTcRgba:
+ case ScanlineFormat::N32BitTcBgra:
+ case ScanlineFormat::N32BitTcArgb:
+ case ScanlineFormat::N32BitTcAbgr:
+ pScaleRangeFn = scaleOctal32;
+ break;
+ default:
+ pScaleRangeFn = scaleOctalGeneral;
+ break;
+ }
+
+ break;
+ }
+ case ScaleType::QUARTER:
+ switch (pReadAccess->GetScanlineFormat())
+ {
+ case ScanlineFormat::N24BitTcBgr:
+ case ScanlineFormat::N24BitTcRgb:
+ pScaleRangeFn = scaleQuarter24;
+ break;
+ case ScanlineFormat::N32BitTcRgba:
+ case ScanlineFormat::N32BitTcBgra:
+ case ScanlineFormat::N32BitTcArgb:
+ case ScanlineFormat::N32BitTcAbgr:
+ pScaleRangeFn = scaleQuarter32_SSE;
+ break;
+ default:
+ pScaleRangeFn = scaleQuarterGeneral;
+ break;
+ }
+
+ break;
+ case ScaleType::QUARTER_HORIZONTAL:
+ pScaleRangeFn = scaleQuarterGeneralHorizontal;
+ break;
+ case ScaleType::QUARTER_VERTICAL:
+ pScaleRangeFn = scaleQuarterGeneralVertical;
+ break;
+ case ScaleType::HALF:
+ switch (pReadAccess->GetScanlineFormat())
+ {
+ case ScanlineFormat::N24BitTcBgr:
+ case ScanlineFormat::N24BitTcRgb:
+ pScaleRangeFn = scaleHalf24;
+ break;
+ case ScanlineFormat::N32BitTcRgba:
+ case ScanlineFormat::N32BitTcBgra:
+ case ScanlineFormat::N32BitTcArgb:
+ case ScanlineFormat::N32BitTcAbgr:
+ pScaleRangeFn = scaleHalf32_SSE2;
+ break;
+ default:
+ pScaleRangeFn = scaleHalfGeneral;
+ break;
+ }
+
+ break;
+ case ScaleType::HALF_HORIZONTAL:
+ pScaleRangeFn = scaleHalfGeneralHorizontal;
+ break;
+ case ScaleType::HALF_VERTICAL:
+ pScaleRangeFn = scaleHalfGeneralVertical;
+ break;
+ default:
+ return false;
+ }
+
+ bool bUseThreads = true;
+
+ static bool bDisableThreadedScaling = getenv("VCL_NO_THREAD_SCALE");
+ if (bDisableThreadedScaling)
+ {
+ SAL_INFO("vcl.gdi", "Scale in main thread");
+ bUseThreads = false;
+ }
+
+ if (bUseThreads)
+ {
+ try
+ {
+ comphelper::ThreadPool& rShared
+ = comphelper::ThreadPool::getSharedOptimalPool();
+ // partition and queue work
+ long nStripYStart = nStartY;
+ long nStripYEnd = nStripYStart + constScaleThreadStrip - 1;
+
+ while (nStripYEnd < nEndY)
+ {
+ std::unique_ptr<ScaleTask> pTask(new ScaleTask(
+ mpThreadPoolTag, pScaleRangeFn, aContext, nStripYStart, nStripYEnd));
+ rShared.pushTask(std::move(pTask));
+ nStripYStart += constScaleThreadStrip;
+ nStripYEnd += constScaleThreadStrip;
+ }
+ if (nStripYStart <= nEndY)
+ {
+ std::unique_ptr<ScaleTask> pTask(new ScaleTask(
+ mpThreadPoolTag, pScaleRangeFn, aContext, nStripYStart, nEndY));
+ rShared.pushTask(std::move(pTask));
+ }
+ rShared.waitUntilDone(mpThreadPoolTag);
+ SAL_INFO("vcl.gdi", "All threaded scaling tasks complete");
+ }
+ catch (...)
+ {
+ SAL_WARN("vcl.gdi", "threaded bitmap scaling failed");
+ bUseThreads = false;
+ }
+ }
+
+ if (!bUseThreads)
+ pScaleRangeFn(aContext, nStartY, nEndY);
+
+ bResult = true;
+ }
+ }
+
+ if (bResult)
+ {
+ rBitmap = aOutBmp;
+ }
+ return bResult;
+}
+
+bool BitmapComboScaleFilter::fastPrescale(Bitmap& rBitmap)
+{
+ const Size aSize(rBitmap.GetSizePixel());
+
+ const long nDestinationWidth = std::lround(aSize.Width() * std::fabs(mrScaleX));
+ const long nDestinationHeight = std::lround(aSize.Height() * std::fabs(mrScaleY));
+
+ bool bResult = false;
+ ScaleType eType = ScaleType::NONE;
+ if (mrScaleX <= 0.125 && mrScaleY <= 0.125)
+ {
+ eType = ScaleType::OCTAL;
+ }
+ else if (mrScaleX <= 0.25 && mrScaleY <= 0.25)
+ {
+ eType = ScaleType::QUARTER;
+ }
+ else if (mrScaleX <= 0.25 && ALLOW_HORIZONTAL_VERTICAL)
+ {
+ eType = ScaleType::QUARTER_HORIZONTAL;
+ }
+ else if (mrScaleY <= 0.25 && ALLOW_HORIZONTAL_VERTICAL)
+ {
+ eType = ScaleType::QUARTER_VERTICAL;
+ }
+ else if (mrScaleX <= 0.5 && mrScaleY <= 0.5)
+ {
+ eType = ScaleType::HALF;
+ }
+ else if (mrScaleX <= 0.5 && ALLOW_HORIZONTAL_VERTICAL)
+ {
+ eType = ScaleType::HALF_HORIZONTAL;
+ }
+ else if (mrScaleY <= 0.5 && ALLOW_HORIZONTAL_VERTICAL)
+ {
+ eType = ScaleType::HALF_VERTICAL;
+ }
+
+ bResult = scale(eType, rBitmap);
+
+ if (bResult)
+ {
+ const Size aNewSize(rBitmap.GetSizePixel());
+ mrScaleX = nDestinationWidth / double(aNewSize.Width());
+ mrScaleY = nDestinationHeight / double(aNewSize.Height());
+ printf("Combo: %ld %ld -> %ld %ld\n", aSize.Width(), aSize.Height(), aNewSize.Width(),
+ aNewSize.Height());
+ }
+
+ return bResult;
+}
+
+BitmapEx BitmapComboScaleFilter::execute(BitmapEx const& rBitmapEx) const
+{
+ Bitmap aBitmap(rBitmapEx.GetBitmap());
+
+ while (const_cast<BitmapComboScaleFilter*>(this)->fastPrescale(aBitmap))
+ ;
+
+ BitmapEx aBitmapEx(aBitmap);
+ BitmapScaleSuperFilter aScaleSuper(mrScaleX, mrScaleY);
+ BitmapEx aResult = aScaleSuper.execute(aBitmapEx);
+
+ return aResult;
+}
+
+} // end namespace vcl
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/bitmap/ScanlineHalfScaler.cxx b/vcl/source/bitmap/ScanlineHalfScaler.cxx
new file mode 100644
index 000000000000..944559038948
--- /dev/null
+++ b/vcl/source/bitmap/ScanlineHalfScaler.cxx
@@ -0,0 +1,1359 @@
+/* -*- 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 <bitmap/ScanlineHalfScaler.hxx>
+
+#include <vcl/bitmapaccess.hxx>
+#include <bitmapwriteaccess.hxx>
+
+#include <tools/helpers.hxx>
+#include <algorithm>
+#include <memory>
+#include <tools/cpuid.hxx>
+#include <tools/simdsupport.hxx>
+
+#if defined(LO_SSE2_AVAILABLE)
+#include <emmintrin.h>
+#endif
+
+namespace vcl
+{
+namespace
+{
+inline sal_uInt32 Avg2x2(sal_uInt32 a, sal_uInt32 b, sal_uInt32 c, sal_uInt32 d)
+{
+ // Prepare half-adder work
+ sal_uInt32 sum = a ^ b ^ c;
+ sal_uInt32 carry = (a & b) | (a & c) | (b & c);
+
+ // Before shifting, mask lower order bits of each byte to avoid underflow.
+ sal_uInt32 mask = 0xfefefefe;
+
+ // Add d to sum and divide by 2.
+ sum = (((sum ^ d) & mask) >> 1) + (sum & d);
+
+ // Sum is now shifted into place relative to carry, add them together.
+ return (((sum ^ carry) & mask) >> 1) + (sum & carry);
+}
+}
+
+void scaleHalfGeneralHorizontal(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ Scanline pSourceScanline = rContext.getSourceScanline(nY);
+ Scanline pTargetScanline = rContext.getTargetScanline(nY);
+
+ long nTargetX = 0;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ long nSourceX = nX * 2;
+
+ BitmapColor aColor0 = rContext.getSourcePixel(pSourceScanline, nSourceX);
+ BitmapColor aColor1 = rContext.getSourcePixel(pSourceScanline, nSourceX + 1);
+
+ BitmapColor aColorResult((aColor0.GetRed() + aColor1.GetRed()) / 2,
+ (aColor0.GetGreen() + aColor1.GetGreen()) / 2,
+ (aColor0.GetBlue() + aColor1.GetBlue()) / 2);
+
+ rContext.setTargetPixel(pTargetScanline, nTargetX++, aColorResult);
+ }
+ }
+}
+
+void scaleHalfGeneralVertical(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY = nY * 2;
+
+ Scanline pSourceScanline0 = rContext.mpSource->GetScanline(nSourceY);
+ Scanline pSourceScanline1 = rContext.mpSource->GetScanline(nSourceY + 1);
+
+ Scanline pTargetScanline = rContext.mpTarget->GetScanline(nY);
+
+ long nSourceX = nStartX;
+ long nTargetX = 0;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ BitmapColor aColor0 = rContext.mpSource->GetPixelFromData(pSourceScanline0, nSourceX);
+ BitmapColor aColor1 = rContext.mpSource->GetPixelFromData(pSourceScanline1, nSourceX);
+
+ BitmapColor aColorResult((aColor0.GetRed() + aColor1.GetRed()) / 2,
+ (aColor0.GetGreen() + aColor1.GetGreen()) / 2,
+ (aColor0.GetBlue() + aColor1.GetBlue()) / 2);
+
+ rContext.mpTarget->SetPixelOnData(pTargetScanline, nTargetX++, aColorResult);
+ }
+ }
+}
+
+void scaleHalfGeneral(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ long nSourceY = nStartY * 2;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ Scanline pSource0 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource1 = rContext.mpSource->GetScanline(nSourceY++);
+
+ Scanline pScanDest = rContext.mpTarget->GetScanline(nY);
+
+ long nTargetX = 0;
+
+ BitmapColor aColor;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ long nRed = 0;
+ long nGreen = 0;
+ long nBlue = 0;
+ long nAlpha = 0;
+
+ long nSourceX = nX * 2;
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource0, nSourceX);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource0, nSourceX + 1);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource1, nSourceX);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource1, nSourceX + 1);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ BitmapColor aColorResult(nRed / 4, nGreen / 4, nBlue / 4, nAlpha / 4);
+
+ rContext.mpTarget->SetPixelOnData(pScanDest, nTargetX++, aColorResult);
+ }
+ }
+}
+
+void scaleQuarterGeneral(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ long nSourceY = nStartY * 4;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ Scanline pSource0 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource1 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource2 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource3 = rContext.mpSource->GetScanline(nSourceY++);
+
+ Scanline pScanDest = rContext.mpTarget->GetScanline(nY);
+
+ long nTargetX = 0;
+
+ BitmapColor aColor;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ long nRed = 0;
+ long nGreen = 0;
+ long nBlue = 0;
+ long nAlpha = 0;
+
+ long nSourceX = nX * 4;
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource0, nSourceX);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource0, nSourceX + 1);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource0, nSourceX + 2);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource0, nSourceX + 3);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource1, nSourceX);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource1, nSourceX + 1);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource1, nSourceX + 2);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource1, nSourceX + 3);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource2, nSourceX);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource2, nSourceX + 1);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource2, nSourceX + 2);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource2, nSourceX + 3);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource3, nSourceX);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource3, nSourceX + 1);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource3, nSourceX + 2);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ aColor = rContext.mpSource->GetPixelFromData(pSource3, nSourceX + 3);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+
+ BitmapColor aColorResult(nRed / 16, nGreen / 16, nBlue / 16, nAlpha / 16);
+
+ rContext.mpTarget->SetPixelOnData(pScanDest, nTargetX++, aColorResult);
+ }
+ }
+}
+
+void scaleQuarterGeneralHorizontal(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ Scanline pSourceScanline = rContext.mpSource->GetScanline(nY);
+ Scanline pTargetScanline = rContext.mpTarget->GetScanline(nY);
+
+ long nTargetX = 0;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ long nSourceX = nX * 4;
+
+ BitmapColor aColor0 = rContext.mpSource->GetPixelFromData(pSourceScanline, nSourceX);
+ BitmapColor aColor1
+ = rContext.mpSource->GetPixelFromData(pSourceScanline, nSourceX + 1);
+ BitmapColor aColor2
+ = rContext.mpSource->GetPixelFromData(pSourceScanline, nSourceX + 2);
+ BitmapColor aColor3
+ = rContext.mpSource->GetPixelFromData(pSourceScanline, nSourceX + 3);
+
+ BitmapColor aColorResult(
+ (aColor0.GetRed() + aColor1.GetRed() + aColor2.GetRed() + aColor3.GetRed()) / 4,
+ (aColor0.GetGreen() + aColor1.GetGreen() + aColor2.GetGreen() + aColor3.GetGreen())
+ / 4,
+ (aColor0.GetBlue() + aColor1.GetBlue() + aColor2.GetBlue() + aColor3.GetBlue())
+ / 4);
+
+ rContext.mpTarget->SetPixelOnData(pTargetScanline, nTargetX++, aColorResult);
+ }
+ }
+}
+
+void scaleQuarterGeneralVertical(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY = nY * 4;
+
+ Scanline pSourceScanline0 = rContext.mpSource->GetScanline(nSourceY);
+ Scanline pSourceScanline1 = rContext.mpSource->GetScanline(nSourceY + 1);
+ Scanline pSourceScanline2 = rContext.mpSource->GetScanline(nSourceY + 2);
+ Scanline pSourceScanline3 = rContext.mpSource->GetScanline(nSourceY + 3);
+
+ Scanline pTargetScanline = rContext.mpTarget->GetScanline(nY);
+
+ long nSourceX = nStartX;
+ long nTargetX = 0;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ BitmapColor aColor0 = rContext.mpSource->GetPixelFromData(pSourceScanline0, nSourceX);
+ BitmapColor aColor1 = rContext.mpSource->GetPixelFromData(pSourceScanline1, nSourceX);
+ BitmapColor aColor2 = rContext.mpSource->GetPixelFromData(pSourceScanline2, nSourceX);
+ BitmapColor aColor3 = rContext.mpSource->GetPixelFromData(pSourceScanline3, nSourceX);
+
+ BitmapColor aColorResult(
+ (aColor0.GetRed() + aColor1.GetRed() + aColor2.GetRed() + aColor3.GetRed()) / 4,
+ (aColor0.GetGreen() + aColor1.GetGreen() + aColor2.GetGreen() + aColor3.GetGreen())
+ / 4,
+ (aColor0.GetBlue() + aColor1.GetBlue() + aColor2.GetBlue() + aColor3.GetBlue())
+ / 4);
+
+ rContext.mpTarget->SetPixelOnData(pTargetScanline, nTargetX++, aColorResult);
+ }
+ }
+}
+
+void scaleOctalGeneral(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY = nY * 8;
+
+ Scanline pSource0 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource1 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource2 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource3 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource4 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource5 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource6 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource7 = rContext.mpSource->GetScanline(nSourceY);
+
+ Scanline pTargetScanline = rContext.mpTarget->GetScanline(nY);
+
+ long nTargetX = 0;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ long nRed = 0;
+ long nGreen = 0;
+ long nBlue = 0;
+ long nAlpha = 0;
+
+ long nSourceX = nX * 8;
+
+ for (long i = 0; i < 8; i++)
+ {
+ BitmapColor aColor = rContext.mpSource->GetPixelFromData(pSource0, nSourceX + i);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+ }
+
+ for (long i = 0; i < 8; i++)
+ {
+ BitmapColor aColor = rContext.mpSource->GetPixelFromData(pSource1, nSourceX + i);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+ }
+
+ for (long i = 0; i < 8; i++)
+ {
+ BitmapColor aColor = rContext.mpSource->GetPixelFromData(pSource2, nSourceX + i);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+ }
+
+ for (long i = 0; i < 8; i++)
+ {
+ BitmapColor aColor = rContext.mpSource->GetPixelFromData(pSource3, nSourceX + i);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+ }
+
+ for (long i = 0; i < 8; i++)
+ {
+ BitmapColor aColor = rContext.mpSource->GetPixelFromData(pSource4, nSourceX + i);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+ }
+
+ for (long i = 0; i < 8; i++)
+ {
+ BitmapColor aColor = rContext.mpSource->GetPixelFromData(pSource5, nSourceX + i);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+ }
+
+ for (long i = 0; i < 8; i++)
+ {
+ BitmapColor aColor = rContext.mpSource->GetPixelFromData(pSource6, nSourceX + i);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+ }
+
+ for (long i = 0; i < 8; i++)
+ {
+ BitmapColor aColor = rContext.mpSource->GetPixelFromData(pSource7, nSourceX + i);
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ nAlpha += aColor.GetAlpha();
+ }
+
+ BitmapColor aColorResult(nRed / 64, nGreen / 64, nBlue / 64);
+
+ rContext.mpTarget->SetPixelOnData(pTargetScanline, nTargetX++, aColorResult);
+ }
+ }
+}
+
+void scaleOctal32(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ constexpr int constColorComponents = 4;
+ constexpr int constNumberSamples = 4;
+ constexpr int constNumberSamplesSquared = (constNumberSamples * constNumberSamples);
+
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY = nY * constNumberSamples;
+
+ Scanline pSource0 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource1 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource2 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource3 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource4 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource5 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource6 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource7 = rContext.mpSource->GetScanline(nSourceY);
+
+ Scanline pTargetScanline = rContext.mpTarget->GetScanline(nY);
+
+ Scanline pColorPtr;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ long nComponent1 = 0;
+ long nComponent2 = 0;
+ long nComponent3 = 0;
+ long nComponent4 = 0;
+
+ long nSourceX = nX * constNumberSamples;
+
+ pColorPtr = pSource0 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource1 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource2 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource3 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource4 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource5 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource6 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource7 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ *pTargetScanline = nComponent1 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent2 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent3 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent4 / constNumberSamplesSquared;
+ pTargetScanline++;
+ }
+ }
+}
+
+void scaleQuarter32_1(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ constexpr int constColorComponents = 4;
+ constexpr int constNumberSamples = 4;
+ constexpr int constNumberSamplesSquared = (constNumberSamples * constNumberSamples);
+
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY = nY * constNumberSamples;
+
+ Scanline pSource0 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource1 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource2 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource3 = rContext.mpSource->GetScanline(nSourceY);
+
+ Scanline pTargetScanline = rContext.mpTarget->GetScanline(nY);
+
+ Scanline pColorPtr;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ long nComponent1 = 0;
+ long nComponent2 = 0;
+ long nComponent3 = 0;
+ long nComponent4 = 0;
+
+ long nSourceX = nX * constNumberSamples;
+
+ pColorPtr = pSource0 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource1 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource2 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource3 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ *pTargetScanline = nComponent1 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent2 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent3 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent4 / constNumberSamplesSquared;
+ pTargetScanline++;
+ }
+ }
+}
+
+void scaleQuarter32_2(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ constexpr int constNumberSamples = 4;
+
+ const long nSourceW = rContext.mnSourceW;
+
+ sal_uInt32 nColor00;
+ sal_uInt32 nColor01;
+ sal_uInt32 nColor10;
+ sal_uInt32 nColor11;
+
+ sal_uInt32 nA1;
+ sal_uInt32 nA2;
+ sal_uInt32 nA3;
+ sal_uInt32 nA4;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY1 = nY * constNumberSamples;
+ long nSourceY2 = nSourceY1 + 1;
+ long nSourceY3 = nSourceY2 + 1;
+ long nSourceY4 = nSourceY3 + 1;
+
+ sal_uInt32* pSource0
+ = reinterpret_cast<sal_uInt32*>(rContext.mpSource->GetScanline(nSourceY1));
+ sal_uInt32* pSource1
+ = reinterpret_cast<sal_uInt32*>(rContext.mpSource->GetScanline(nSourceY2));
+ sal_uInt32* pSource2
+ = reinterpret_cast<sal_uInt32*>(rContext.mpSource->GetScanline(nSourceY3));
+ sal_uInt32* pSource3
+ = reinterpret_cast<sal_uInt32*>(rContext.mpSource->GetScanline(nSourceY4));
+
+ sal_uInt32* pTarget = reinterpret_cast<sal_uInt32*>(rContext.mpTarget->GetScanline(nY));
+
+ for (long nSourceX = 0; nSourceX < nSourceW; nSourceX += constNumberSamples)
+ {
+ nColor00 = *pSource0;
+ pSource0++;
+ nColor01 = *pSource0;
+ pSource0++;
+
+ nColor10 = *pSource1;
+ pSource1++;
+ nColor11 = *pSource1;
+ pSource1++;
+
+ nA1 = Avg2x2(nColor00, nColor01, nColor10, nColor11);
+
+ nColor00 = *pSource0;
+ pSource0++;
+ nColor01 = *pSource0;
+ pSource0++;
+
+ nColor10 = *pSource1;
+ pSource1++;
+ nColor11 = *pSource1;
+ pSource1++;
+
+ nA2 = Avg2x2(nColor00, nColor01, nColor10, nColor11);
+
+ nColor00 = *pSource2;
+ pSource2++;
+ nColor01 = *pSource2;
+ pSource2++;
+
+ nColor10 = *pSource3;
+ pSource3++;
+ nColor11 = *pSource3;
+ pSource3++;
+
+ nA3 = Avg2x2(nColor00, nColor01, nColor10, nColor11);
+
+ nColor00 = *pSource2;
+ pSource2++;
+ nColor01 = *pSource2;
+ pSource2++;
+
+ nColor10 = *pSource3;
+ pSource3++;
+ nColor11 = *pSource3;
+ pSource3++;
+
+ nA4 = Avg2x2(nColor00, nColor01, nColor10, nColor11);
+
+ *pTarget = Avg2x2(nA1, nA2, nA3, nA4);
+ pTarget++;
+ }
+ }
+}
+
+VCL_FORCEINLINE __m128i _mm_not_si128(__m128i arg)
+{
+ __m128i minusone = _mm_set1_epi32(0xffffffff);
+ return _mm_xor_si128(arg, minusone);
+}
+
+VCL_FORCEINLINE __m128i avg_sse2_8x2(__m128i* a, __m128i* b, __m128i* c, __m128i* d)
+{
+#define shuffle_si128(arga, argb, imm) \
+ _mm_castps_si128(_mm_shuffle_ps(_mm_castsi128_ps((arga)), _mm_castsi128_ps((argb)), (imm)));
+
+ __m128i t = shuffle_si128(*a, *b, _MM_SHUFFLE(2, 0, 2, 0));
+ *b = shuffle_si128(*a, *b, _MM_SHUFFLE(3, 1, 3, 1));
+ *a = t;
+ t = shuffle_si128(*c, *d, _MM_SHUFFLE(2, 0, 2, 0));
+ *d = shuffle_si128(*c, *d, _MM_SHUFFLE(3, 1, 3, 1));
+ *c = t;
+
+#undef shuffle_si128
+
+ __m128i sum = _mm_xor_si128(*a, _mm_xor_si128(*b, *c));
+
+ __m128i carry = _mm_or_si128(_mm_and_si128(*a, *b),
+ _mm_or_si128(_mm_and_si128(*a, *c), _mm_and_si128(*b, *c)));
+
+ sum = _mm_avg_epu8(_mm_not_si128(sum), _mm_not_si128(*d));
+
+ return _mm_not_si128(_mm_avg_epu8(sum, _mm_not_si128(carry)));
+}
+
+void scaleQuarter32_SSE(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ constexpr int constNumberSamples = 4;
+
+ const long nSourceW = rContext.mnSourceW;
+
+ __m128i nColor00;
+ __m128i nColor01;
+ __m128i nColor02;
+ __m128i nColor03;
+
+ __m128i nColor10;
+ __m128i nColor11;
+ __m128i nColor12;
+ __m128i nColor13;
+
+ __m128i nA1;
+ __m128i nA2;
+ __m128i nA3;
+ __m128i nA4;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY1 = nY * constNumberSamples;
+ long nSourceY2 = nSourceY1 + 1;
+ long nSourceY3 = nSourceY2 + 1;
+ long nSourceY4 = nSourceY3 + 1;
+
+ __m128i* pSource0 = reinterpret_cast<__m128i*>(rContext.mpSource->GetScanline(nSourceY1));
+ __m128i* pSource1 = reinterpret_cast<__m128i*>(rContext.mpSource->GetScanline(nSourceY2));
+ __m128i* pSource2 = reinterpret_cast<__m128i*>(rContext.mpSource->GetScanline(nSourceY3));
+ __m128i* pSource3 = reinterpret_cast<__m128i*>(rContext.mpSource->GetScanline(nSourceY4));
+
+ __m128i* pTarget = reinterpret_cast<__m128i*>(rContext.mpTarget->GetScanline(nY));
+
+ for (long nSourceX = 0; nSourceX < nSourceW; nSourceX += constNumberSamples * 4)
+ {
+ nColor00 = _mm_loadu_si128(pSource0);
+ pSource0++;
+ nColor01 = _mm_loadu_si128(pSource0);
+ pSource0++;
+ nColor02 = _mm_loadu_si128(pSource0);
+ pSource0++;
+ nColor03 = _mm_loadu_si128(pSource0);
+ pSource0++;
+
+ nColor10 = _mm_loadu_si128(pSource1);
+ pSource1++;
+ nColor11 = _mm_loadu_si128(pSource1);
+ pSource1++;
+ nColor12 = _mm_loadu_si128(pSource1);
+ pSource1++;
+ nColor13 = _mm_loadu_si128(pSource1);
+ pSource1++;
+
+ nA1 = avg_sse2_8x2(&nColor00, &nColor01, &nColor10, &nColor11);
+ nA2 = avg_sse2_8x2(&nColor02, &nColor03, &nColor12, &nColor13);
+
+ nColor00 = _mm_loadu_si128(pSource2);
+ pSource2++;
+ nColor01 = _mm_loadu_si128(pSource2);
+ pSource2++;
+ nColor02 = _mm_loadu_si128(pSource2);
+ pSource2++;
+ nColor03 = _mm_loadu_si128(pSource2);
+ pSource2++;
+
+ nColor10 = _mm_loadu_si128(pSource3);
+ pSource3++;
+ nColor11 = _mm_loadu_si128(pSource3);
+ pSource3++;
+ nColor12 = _mm_loadu_si128(pSource3);
+ pSource3++;
+ nColor13 = _mm_loadu_si128(pSource3);
+ pSource3++;
+
+ nA3 = avg_sse2_8x2(&nColor00, &nColor01, &nColor10, &nColor11);
+ nA4 = avg_sse2_8x2(&nColor02, &nColor03, &nColor12, &nColor13);
+
+ _mm_storeu_si128(pTarget, avg_sse2_8x2(&nA1, &nA2, &nA3, &nA4));
+ pTarget++;
+ }
+ }
+}
+
+void scaleHalf32_SSE2(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ constexpr int constNumberSamples = 2;
+
+ const long nSourceW = rContext.mnSourceW;
+
+ __m128i nColor00;
+ __m128i nColor01;
+ __m128i nColor10;
+ __m128i nColor11;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY1 = nY * constNumberSamples;
+ long nSourceY2 = nSourceY1 + 1;
+
+ __m128i* pSource0 = reinterpret_cast<__m128i*>(rContext.mpSource->GetScanline(nSourceY1));
+ __m128i* pSource1 = reinterpret_cast<__m128i*>(rContext.mpSource->GetScanline(nSourceY2));
+
+ __m128i* pTarget = reinterpret_cast<__m128i*>(rContext.mpTarget->GetScanline(nY));
+
+ for (long nSourceX = 0; nSourceX < nSourceW; nSourceX += constNumberSamples * 4)
+ {
+ nColor00 = _mm_loadu_si128(pSource0);
+ pSource0++;
+ nColor01 = _mm_loadu_si128(pSource0);
+ pSource0++;
+ nColor10 = _mm_loadu_si128(pSource1);
+ pSource1++;
+ nColor11 = _mm_loadu_si128(pSource1);
+ pSource1++;
+
+ _mm_storeu_si128(pTarget, avg_sse2_8x2(&nColor00, &nColor01, &nColor10, &nColor11));
+ pTarget++;
+ }
+ }
+}
+
+void scaleHalf32_2(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ constexpr int constNumberSamples = 2;
+
+ const long nSourceW = rContext.mnSourceW;
+
+ sal_uInt32 nColor00;
+ sal_uInt32 nColor01;
+ sal_uInt32 nColor10;
+ sal_uInt32 nColor11;
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY1 = nY * constNumberSamples;
+ long nSourceY2 = nSourceY1 + 1;
+
+ sal_uInt32* pSource0
+ = reinterpret_cast<sal_uInt32*>(rContext.mpSource->GetScanline(nSourceY1));
+ sal_uInt32* pSource1
+ = reinterpret_cast<sal_uInt32*>(rContext.mpSource->GetScanline(nSourceY2));
+ sal_uInt32* pTarget = reinterpret_cast<sal_uInt32*>(rContext.mpTarget->GetScanline(nY));
+
+ for (long nSourceX = 0; nSourceX < nSourceW; nSourceX += constNumberSamples)
+ {
+ nColor00 = *pSource0;
+ pSource0++;
+ nColor01 = *pSource0;
+ pSource0++;
+ nColor10 = *pSource1;
+ pSource1++;
+ nColor11 = *pSource1;
+ pSource1++;
+
+ *pTarget = Avg2x2(nColor00, nColor01, nColor10, nColor11);
+ pTarget++;
+ }
+ }
+}
+
+void scaleHalf32_1(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ constexpr int constColorComponents = 4;
+ constexpr int constNumberSamples = 2;
+ constexpr int constNumberSamplesSquared = (constNumberSamples * constNumberSamples);
+
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ long nComponent1 = 0;
+ long nComponent2 = 0;
+ long nComponent3 = 0;
+ long nComponent4 = 0;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY = nY * constNumberSamples;
+
+ Scanline pSource0 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource1 = rContext.mpSource->GetScanline(nSourceY);
+
+ Scanline pTargetScanline = rContext.mpTarget->GetScanline(nY);
+
+ Scanline pColorPtr;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ nComponent1 = 0;
+ nComponent2 = 0;
+ nComponent3 = 0;
+ nComponent4 = 0;
+
+ long nSourceX = nX * constNumberSamples;
+
+ pColorPtr = pSource0 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource1 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ nComponent4 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ *pTargetScanline = nComponent1 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent2 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent3 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent4 / constNumberSamplesSquared;
+ pTargetScanline++;
+ }
+ }
+}
+
+template <int constColorComponents>
+void scaleHalf32or24(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ constexpr int constNumberSamples = 2;
+ constexpr int constNumberSamplesSquared = constNumberSamples * constNumberSamples;
+
+ const long nSourceW = rContext.mnSourceW;
+
+ std::array<long, constColorComponents> aComponents;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY1 = nY * constNumberSamples;
+ long nSourceY2 = nSourceY1 + 1;
+
+ Scanline pSource0 = rContext.mpSource->GetScanline(nSourceY1);
+ Scanline pSource1 = rContext.mpSource->GetScanline(nSourceY2);
+ Scanline pTargetScanline = rContext.mpTarget->GetScanline(nY);
+
+ long nSourceX;
+ for (nSourceX = 0; nSourceX < nSourceW; nSourceX += constNumberSamples)
+ {
+ aComponents.fill(0);
+ long i;
+ long c;
+
+ for (i = 0; i < constNumberSamples; i++)
+ {
+ for (c = 0; c < constColorComponents; c++)
+ {
+ aComponents[c] += *pSource0;
+ pSource0++;
+ }
+ }
+
+ for (i = 0; i < constNumberSamples; i++)
+ {
+ for (c = 0; c < constColorComponents; c++)
+ {
+ aComponents[c] += *pSource1;
+ pSource1++;
+ }
+ }
+
+ for (c = 0; c < constColorComponents; c++)
+ {
+ *pTargetScanline = aComponents[c] / constNumberSamplesSquared;
+ pTargetScanline++;
+ }
+ }
+ }
+}
+
+void scaleHalf32(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ scaleHalf32or24<4>(rContext, nStartY, nEndY);
+}
+
+void scaleHalf24(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ scaleHalf32or24<3>(rContext, nStartY, nEndY);
+}
+
+void scaleOctal24(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ constexpr int constColorComponents = 3;
+ constexpr int constNumberSamples = 8;
+ constexpr int constNumberSamplesSquared = (constNumberSamples * constNumberSamples);
+
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY = nY * constNumberSamples;
+
+ Scanline pSource0 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource1 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource2 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource3 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource4 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource5 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource6 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource7 = rContext.mpSource->GetScanline(nSourceY);
+
+ Scanline pTargetScanline = rContext.mpTarget->GetScanline(nY);
+
+ Scanline pColorPtr;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ long nComponent1 = 0;
+ long nComponent2 = 0;
+ long nComponent3 = 0;
+
+ long nSourceX = nX * constNumberSamples;
+
+ pColorPtr = pSource0 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource1 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource2 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource3 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource4 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource5 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource6 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource7 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ *pTargetScanline = nComponent1 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent2 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent3 / constNumberSamplesSquared;
+ pTargetScanline++;
+ }
+ }
+}
+
+void scaleQuarter24(ScaleContext& rContext, long nStartY, long nEndY)
+{
+ constexpr int constColorComponents = 3;
+ constexpr int constNumberSamples = 4;
+ constexpr int constNumberSamplesSquared = (constNumberSamples * constNumberSamples);
+
+ const long nStartX = 0;
+ const long nEndX = rContext.mnTargetW - 1;
+
+ for (long nY = nStartY; nY <= nEndY; nY++)
+ {
+ long nSourceY = nY * constNumberSamples;
+
+ Scanline pSource0 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource1 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource2 = rContext.mpSource->GetScanline(nSourceY++);
+ Scanline pSource3 = rContext.mpSource->GetScanline(nSourceY++);
+
+ Scanline pTargetScanline = rContext.mpTarget->GetScanline(nY);
+
+ Scanline pColorPtr;
+
+ for (long nX = nStartX; nX <= nEndX; nX++)
+ {
+ long nComponent1 = 0;
+ long nComponent2 = 0;
+ long nComponent3 = 0;
+
+ long nSourceX = nX * constNumberSamples;
+
+ pColorPtr = pSource0 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource1 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource2 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ pColorPtr = pSource3 + constColorComponents * nSourceX;
+ for (long i = 0; i < constNumberSamples; i++)
+ {
+ nComponent1 += *pColorPtr;
+ pColorPtr++;
+ nComponent2 += *pColorPtr;
+ pColorPtr++;
+ nComponent3 += *pColorPtr;
+ pColorPtr++;
+ }
+
+ *pTargetScanline = nComponent1 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent2 / constNumberSamplesSquared;
+ pTargetScanline++;
+ *pTargetScanline = nComponent3 / constNumberSamplesSquared;
+ pTargetScanline++;
+ }
+ }
+}
+
+} // namespace vcl
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/gdi/bitmap3.cxx b/vcl/source/gdi/bitmap3.cxx
index 3e9972569a16..1f86792852b6 100644
--- a/vcl/source/gdi/bitmap3.cxx
+++ b/vcl/source/gdi/bitmap3.cxx
@@ -35,6 +35,7 @@
#include <vcl/BitmapMonochromeFilter.hxx>
#include <BitmapScaleSuperFilter.hxx>
+#include <BitmapComboScaleFilter.hxx>
#include <BitmapScaleConvolutionFilter.hxx>
#include <BitmapFastScaleFilter.hxx>
#include <BitmapInterpolateScaleFilter.hxx>
@@ -752,6 +753,9 @@ bool Bitmap::Scale( const double& rScaleX, const double& rScaleY, BmpScaleFlag n
case BmpScaleFlag::BiLinear:
bRetval = BitmapFilter::Filter(aBmpEx, vcl::BitmapScaleBilinearFilter(rScaleX, rScaleY));
break;
+ case BmpScaleFlag::Combo:
+ bRetval = BitmapFilter::Filter(aBmpEx, vcl::BitmapComboScaleFilter(rScaleX, rScaleY));
+ break;
}
if (bRetval)
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