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Fixed: loadPNG with RGB images was returning 32

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kervala 2015-12-16 14:50:40 +01:00
parent 5b21d864a7
commit 39f838a1fd
1 changed files with 31 additions and 1 deletions
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32
code/nel/src/misc/bitmap_png.cpp
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@ -136,6 +136,36 @@ uint8 CBitmap::readPNG( NLMISC::IStream &f )
// get again width, height and the new bit-depth and color-type
png_get_IHDR(png_ptr, info_ptr, &width, &height, &iBitDepth, &iColorType, NULL, NULL, NULL);
uint8 imageDepth;
switch(iColorType)
{
case PNG_COLOR_TYPE_GRAY:
imageDepth = iBitDepth;
break;
case PNG_COLOR_TYPE_PALETTE:
imageDepth = iBitDepth;
break;
case PNG_COLOR_TYPE_RGB:
imageDepth = iBitDepth * 3;
break;
case PNG_COLOR_TYPE_RGB_ALPHA:
imageDepth = iBitDepth * 4;
break;
case PNG_COLOR_TYPE_GRAY_ALPHA:
imageDepth = iBitDepth * 2;
break;
default:
imageDepth = iBitDepth * 4;
nlwarning("Unable to determine PNG color type: %d, consider it as RGBA", iColorType);
break;
}
// at this point, the image must be converted to an 24bit image RGB
// rowbytes is the width x number of channels
@ -208,7 +238,7 @@ uint8 CBitmap::readPNG( NLMISC::IStream &f )
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
//return the size of a pixel, either 8,24,32 bit
return uint8(dstChannels * iBitDepth);
return imageDepth;
}
/*-------------------------------------------------------------------*\