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use GetPreferredAlphaChannelFormat to figure out what to use for alpha when setting data

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git-svn-id: svn://10.0.0.236/branches/IMGLIB2_20010126_BRANCH@87086 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
pavlov%netscape.com
2001-02-15 07:56:30 +00:00
parent e94ee4b3e2
commit 8621240022
1 changed files with 5 additions and 1 deletions
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6
mozilla/modules/libpr0n/decoders/png/nsPNGDecoder.cpp
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@@ -347,7 +347,7 @@ nsPNGDecoder::info_callback(png_structp png_ptr, png_infop info_ptr)
format = nsIGFXFormat::RGB;
} else if (channels > 3) {
if (alpha_bits == 8) {
format = nsIGFXFormat::RGB_A8;
decoder->mImage->GetPreferredAlphaChannelFormat(&format);
} else if (alpha_bits == 1) {
format = nsIGFXFormat::RGB_A1;
}
@@ -484,6 +484,10 @@ nsPNGDecoder::row_callback(png_structp png_ptr, png_bytep new_row,
decoder->mFrame->SetAlphaData(decoder->alphaLine, abpr, row_num*abpr);
}
break;
case nsIGFXFormat::RGBA:
case nsIGFXFormat::BGRA:
decoder->mFrame->SetImageData(line, bpr, row_num*bpr);
break;
}
nsRect r(0, row_num, width, 1);