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Use statics initializers instead of checks

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Change-Id: I8c474a35e3c4b9a202e4003c6b895f18ac88fb09
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/94001
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
This commit is contained in:
Mike Kaganski 2020-05-13 17:05:12 +02:00
parent cbc13ac062
commit 3689f6f15e
1 changed files with 36 additions and 41 deletions
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77
vcl/source/bitmap/bitmap.cxx
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@ -116,71 +116,66 @@ Bitmap::~Bitmap()
const BitmapPalette& Bitmap::GetGreyPalette( int nEntries )
{
static BitmapPalette aGreyPalette2;
static BitmapPalette aGreyPalette4;
static BitmapPalette aGreyPalette16;
static BitmapPalette aGreyPalette256;
// Create greyscale palette with 2, 4, 16 or 256 entries
if( 2 == nEntries || 4 == nEntries || 16 == nEntries || 256 == nEntries )
switch (nEntries)
{
if( 2 == nEntries )
case 2:
{
if( !aGreyPalette2.GetEntryCount() )
{
aGreyPalette2.SetEntryCount( 2 );
aGreyPalette2[ 0 ] = BitmapColor( 0, 0, 0 );
aGreyPalette2[ 1 ] = BitmapColor( 255, 255, 255 );
}
static const BitmapPalette aGreyPalette2 = [] {
BitmapPalette aPalette(2);
aPalette[0] = BitmapColor(0, 0, 0);
aPalette[1] = BitmapColor(255, 255, 255);
return aPalette;
}();
return aGreyPalette2;
}
else if( 4 == nEntries )
case 4:
{
if( !aGreyPalette4.GetEntryCount() )
{
aGreyPalette4.SetEntryCount( 4 );
aGreyPalette4[ 0 ] = BitmapColor( 0, 0, 0 );
aGreyPalette4[ 1 ] = BitmapColor( 85, 85, 85 );
aGreyPalette4[ 2 ] = BitmapColor( 170, 170, 170 );
aGreyPalette4[ 3 ] = BitmapColor( 255, 255, 255 );
}
static const BitmapPalette aGreyPalette4 = [] {
BitmapPalette aPalette(4);
aPalette[0] = BitmapColor(0, 0, 0);
aPalette[1] = BitmapColor(85, 85, 85);
aPalette[2] = BitmapColor(170, 170, 170);
aPalette[3] = BitmapColor(255, 255, 255);
return aPalette;
}();
return aGreyPalette4;
}
else if( 16 == nEntries )
case 16:
{
if( !aGreyPalette16.GetEntryCount() )
{
static const BitmapPalette aGreyPalette16 = [] {
sal_uInt8 cGrey = 0;
sal_uInt8 const cGreyInc = 17;
aGreyPalette16.SetEntryCount( 16 );
BitmapPalette aPalette(16);
for( sal_uInt16 i = 0; i < 16; i++, cGrey = sal::static_int_cast<sal_uInt8>(cGrey + cGreyInc) )
aGreyPalette16[ i ] = BitmapColor( cGrey, cGrey, cGrey );
}
for (sal_uInt16 i = 0; i < 16; ++i, cGrey += cGreyInc)
aPalette[i] = BitmapColor(cGrey, cGrey, cGrey);
return aPalette;
}();
return aGreyPalette16;
}
else
case 256:
{
if( !aGreyPalette256.GetEntryCount() )
{
aGreyPalette256.SetEntryCount( 256 );
static const BitmapPalette aGreyPalette256 = [] {
BitmapPalette aPalette(256);
for( sal_uInt16 i = 0; i < 256; i++ )
aGreyPalette256[ i ] = BitmapColor( static_cast<sal_uInt8>(i), static_cast<sal_uInt8>(i), static_cast<sal_uInt8>(i) );
}
for (sal_uInt16 i = 0; i < 256; ++i)
aPalette[i] = BitmapColor(static_cast<sal_uInt8>(i), static_cast<sal_uInt8>(i),
static_cast<sal_uInt8>(i));
return aPalette;
}();
return aGreyPalette256;
}
}
else
{
OSL_FAIL( "Bitmap::GetGreyPalette: invalid entry count (2/4/16/256 allowed)" );
return aGreyPalette2;
}
OSL_FAIL("Bitmap::GetGreyPalette: invalid entry count (2/4/16/256 allowed)");
return GetGreyPalette(2);
}
bool BitmapPalette::IsGreyPalette() const