Merge pull request #3722 from mapnik/fix_alpha_rgba_tiff_master
Use alpha over no data in RGBA tiffs
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commit
4ec9349389
3 changed files with 3 additions and 3 deletions
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@ -545,7 +545,7 @@ feature_ptr gdal_featureset::get_feature(mapnik::query const& q)
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if (alpha)
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{
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MAPNIK_LOG_DEBUG(gdal) << "gdal_featureset: processing alpha band...";
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if (!raster_has_nodata)
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if (!raster_has_nodata || (red && green && blue))
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{
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raster_io_error = alpha->RasterIO(GF_Read, x_off, y_off, width, height, image.bytes() + 3,
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image.width(), image.height(), GDT_Byte, 4, 4 * image.width());
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@ -1 +1 @@
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Subproject commit 99da07d5e76ccf5978ef0a380bf5f631f9088584
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Subproject commit f95fe1c7b56a5eeb4fa2c2bcdc403d9254ce7448
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@ -1 +1 @@
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Subproject commit 674c5402e6275905ddb7b1fccb0376cae2ec50e0
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Subproject commit df578e3436681bb9bc582c7ac55a4205e98334f4
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