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imgcodecs: refactoring, improve code quality

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This commit is contained in:
Alexander Alekhin
2017-08-15 22:04:55 +00:00
committed by Alexander Alekhin
parent 0d854db361
commit 999f41fb4f
5 changed files with 233 additions and 91 deletions
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modules/imgcodecs/src/grfmt_bmp.cpp
+9 -4
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@@ -118,8 +118,9 @@ bool BmpDecoder::readHeader()
if( m_bpp <= 8 )
{
memset( m_palette, 0, sizeof(m_palette));
m_strm.getBytes( m_palette, (clrused == 0? 1<<m_bpp : clrused)*4 );
CV_Assert(clrused < 256);
memset(m_palette, 0, sizeof(m_palette));
m_strm.getBytes(m_palette, (clrused == 0? 1<<m_bpp : clrused)*4 );
iscolor = IsColorPalette( m_palette, m_bpp );
}
else if( m_bpp == 16 && m_rle_code == BMP_BITFIELDS )
@@ -290,7 +291,9 @@ bool BmpDecoder::readData( Mat& img )
else if( code > 2 ) // absolute mode
{
if( data + code*nch > line_end ) goto decode_rle4_bad;
m_strm.getBytes( src, (((code + 1)>>1) + 1) & -2 );
int sz = (((code + 1)>>1) + 1) & (~1);
CV_Assert((size_t)sz < _src.size());
m_strm.getBytes(src, sz);
if( color )
data = FillColorRow4( data, src, code, m_palette );
else
@@ -379,7 +382,9 @@ decode_rle4_bad: ;
if( data + code3 > line_end )
goto decode_rle8_bad;
m_strm.getBytes( src, (code + 1) & -2 );
int sz = (code + 1) & (~1);
CV_Assert((size_t)sz < _src.size());
m_strm.getBytes(src, sz);
if( color )
data = FillColorRow8( data, src, code, m_palette );
else