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Fix image writing issues for pdfioFileCreateImageObjFromData (Issue #15)

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Michael R Sweet
2021-07-18 09:50:22 -04:00
parent 3e0507ba6c
commit 2cc4789cf6
2 changed files with 20 additions and 9 deletions
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6
pdfio-content.c
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@@ -1694,7 +1694,8 @@ pdfioFileCreateImageObjFromData(
pdfioDictSetNumber(dict, "Width", width);
pdfioDictSetNumber(dict, "Height", height);
pdfioDictSetNumber(dict, "BitsPerComponent", 8);
pdfioDictSetBoolean(dict, "ImageMask", true);
pdfioDictSetName(dict, "ColorSpace", "DeviceGray");
pdfioDictSetName(dict, "Filter", "FlateDecode");
if ((decode = pdfioDictCreate(pdf)) == NULL)
{
@@ -1703,7 +1704,7 @@ pdfioFileCreateImageObjFromData(
}
pdfioDictSetNumber(decode, "BitsPerComponent", 8);
pdfioDictSetNumber(decode, "Colors", num_colors - 1);
pdfioDictSetNumber(decode, "Colors", 1);
pdfioDictSetNumber(decode, "Columns", width);
pdfioDictSetNumber(decode, "Predictor", _PDFIO_PREDICTOR_PNG_AUTO);
pdfioDictSetDict(dict, "DecodeParms", decode);
@@ -1746,6 +1747,7 @@ pdfioFileCreateImageObjFromData(
pdfioDictSetNumber(dict, "Width", width);
pdfioDictSetNumber(dict, "Height", height);
pdfioDictSetNumber(dict, "BitsPerComponent", 8);
pdfioDictSetName(dict, "Filter", "FlateDecode");
if (color_data)
pdfioDictSetArray(dict, "ColorSpace", color_data);