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FIX: CLI: fix the png decoding error

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JIRA: MAK-xxxx(no jira currently)

Change-Id: Id99511355cec7a51cafd5254f308c60a7ac1f57d
This commit is contained in:
lane.wei 2023-09-14 19:26:15 +08:00 • committed by Lane.Wei
parent 1b12dae4c7
commit 85ea716961
1 changed files with 17 additions and 4 deletions
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21
src/libslic3r/PNGReadWrite.cpp
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@ -123,6 +123,7 @@ bool decode_colored_png(IStream &in_buf, ImageColorscale &out_img)
dsc.info = png_create_info_struct(dsc.png);
if(!dsc.info) {
BOOST_LOG_TRIVIAL(error) << boost::format("decode_colored_png: png_create_info_struct failed");
png_destroy_read_struct(&dsc.png, &dsc.info, NULL);
return false;
}
@ -137,6 +138,7 @@ bool decode_colored_png(IStream &in_buf, ImageColorscale &out_img)
out_img.rows = png_get_image_height(dsc.png, dsc.info);
size_t color_type = png_get_color_type(dsc.png, dsc.info);
size_t bit_depth = png_get_bit_depth(dsc.png, dsc.info);
unsigned long rowbytes = png_get_rowbytes(dsc.png, dsc.info);
switch(color_type)
{
@ -147,15 +149,26 @@ bool decode_colored_png(IStream &in_buf, ImageColorscale &out_img)
out_img.bytes_per_pixel = 4;
break;
default: //not supported currently
png_destroy_read_struct(&dsc.png, &dsc.info, NULL);
return false;
}
BOOST_LOG_TRIVIAL(info) << boost::format("png's cols %1%, rows %2%, color_type %3%, bit_depth %4%, bytes_per_pixel %5%")%out_img.cols %out_img.rows %color_type %bit_depth %out_img.bytes_per_pixel;
out_img.buf.resize(out_img.rows * out_img.cols * out_img.bytes_per_pixel);
BOOST_LOG_TRIVIAL(info) << boost::format("png's cols %1%, rows %2%, color_type %3%, bit_depth %4%, bytes_per_pixel %5%, rowbytes %6%")%out_img.cols %out_img.rows %color_type %bit_depth %out_img.bytes_per_pixel %rowbytes;
out_img.buf.resize(out_img.rows * rowbytes);
int filter_type = png_get_filter_type(dsc.png, dsc.info);
int compression_type = png_get_compression_type(dsc.png, dsc.info);
int interlace_type = png_get_interlace_type(dsc.png, dsc.info);
BOOST_LOG_TRIVIAL(info) << boost::format("filter_type %1%, compression_type %2%, interlace_type %3%, rowbytes %4%")%filter_type %compression_type %interlace_type %rowbytes;
auto readbuf = static_cast<png_bytep>(out_img.buf.data());
for (size_t r = 0; r < out_img.rows; ++r)
png_read_row(dsc.png, readbuf + r * out_img.cols * out_img.bytes_per_pixel, nullptr);
for (size_t r = out_img.rows; r > 0; r--)
{
png_read_row(dsc.png, readbuf + (r - 1) * rowbytes, nullptr);
}
png_read_end(dsc.png, dsc.info);
png_destroy_read_struct(&dsc.png, &dsc.info, NULL);
return true;
}