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Gentoo's Bugzilla – Attachment 299989 Details for
Bug 399519
=media-tv/xbmc-11.0_beta1 version bump
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[patch]
xbmc-11.0_beta1-libpng-1.5-fix-plt-trn-get.patch
xbmc-11.0_beta1-libpng-1.5-fix-plt-trn-get.patch (text/plain), 1.62 KB, created by
James Broadhead
on 2012-01-26 18:22:17 UTC
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Description:
xbmc-11.0_beta1-libpng-1.5-fix-plt-trn-get.patch
Filename:
MIME Type:
Creator:
James Broadhead
Created:
2012-01-26 18:22:17 UTC
Size:
1.62 KB
patch
obsolete
> >Update libpng 1.5 patch: check return values of png_get_PLTE() and >png_get_tRNS() before using the values to avoid using uninitialized values. > >--- a/lib/cximage-6.0/CxImage/ximapng.cpp >+++ b/lib/cximage-6.0/CxImage/ximapng.cpp >@@ -178,12 +178,14 @@ bool CxImagePNG::Decode(CxFile *hFile) > int _num_palette; > png_colorp _palette; > #if PNG_LIBPNG_VER > 10399 >- png_get_PLTE(png_ptr,info_ptr,&_palette,&_num_palette); >+ png_uint_32 _palette_ret; >+ _palette_ret = png_get_PLTE(png_ptr,info_ptr,&_palette,&_num_palette); >+ if (_palette_ret && _num_palette>0){ > #else > _num_palette=info_ptr->num_palette; > _palette=info_ptr->palette; >-#endif > if (_num_palette>0){ >+#endif > SetPalette((rgb_color*)_palette,_num_palette); > SetClrImportant(_num_palette); > } else if (_bit_depth ==2) { //<DP> needed for 2 bpp grayscale PNGs >@@ -199,11 +201,13 @@ bool CxImagePNG::Decode(CxFile *hFile) > int _num_trans; > png_color_16p _trans_color; > #if PNG_LIBPNG_VER > 10399 >- png_get_tRNS(png_ptr,info_ptr,&_trans_alpha,&_num_trans,&_trans_color); >+ png_uint_32 _trans_ret; >+ _trans_ret = png_get_tRNS(png_ptr,info_ptr,&_trans_alpha,&_num_trans,&_trans_color); >+ if (_trans_ret && _num_trans!=0){ //palette transparency > #else > _num_trans=info_ptr->num_trans; >-#endif > if (_num_trans!=0){ //palette transparency >+#endif > if (_num_trans==1){ > if (_color_type == PNG_COLOR_TYPE_PALETTE){ > #if PNG_LIBPNG_VER > 10399 >@@ -219,7 +223,11 @@ bool CxImagePNG::Decode(CxFile *hFile) > #endif > } > } >+#if PNG_LIBPNG_VER > 10399 >+ if (_num_trans>1 && _trans_alpha!=NULL){ >+#else > if (_num_trans>1){ >+#endif > RGBQUAD* pal=GetPalette(); > if (pal){ > DWORD ip;
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bug 399519
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299991
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300157
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300161
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