2022-11-27 19:03:07 +00:00
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#include "common.h"
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2021-04-24 22:54:47 +00:00
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2022-02-23 01:43:22 +00:00
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#include <vips/vips8>
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2022-11-27 19:03:07 +00:00
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#include <string>
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#include <map>
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2020-07-12 15:14:39 +00:00
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using namespace std;
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2022-02-23 01:43:22 +00:00
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using namespace vips;
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2020-07-12 15:14:39 +00:00
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2022-11-27 19:03:07 +00:00
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char* Blur(string type, char* BufferData, size_t BufferLength, map<string, string> Arguments, size_t* DataSize) {
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string caption = Arguments["caption"];
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string font = MAP_GET(Arguments, "font");
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bool sharp = MAP_GET(Arguments, "sharp") == "true";
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2022-02-23 01:43:22 +00:00
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VOption *options = VImage::option()->set("access", "sequential");
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2021-04-26 14:47:03 +00:00
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2022-02-23 01:43:22 +00:00
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VImage in =
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2022-11-27 19:03:07 +00:00
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VImage::new_from_buffer(BufferData, BufferLength, "",
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type == "gif" ? options->set("n", -1) : options)
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.colourspace(VIPS_INTERPRETATION_sRGB);
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2022-02-23 01:43:22 +00:00
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if (!in.has_alpha()) in = in.bandjoin(255);
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2021-04-26 14:47:03 +00:00
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2022-02-23 01:43:22 +00:00
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// TODO: find a better way to calculate the intensity for GIFs without
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// splitting frames
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VImage out = sharp ? in.sharpen(VImage::option()->set("sigma", 3))
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: in.gaussblur(15);
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2020-07-12 15:14:39 +00:00
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2022-02-23 01:43:22 +00:00
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void *buf;
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2022-11-27 19:03:07 +00:00
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out.write_to_buffer(("." + type).c_str(), &buf, DataSize);
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vips_error_clear();
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vips_thread_shutdown();
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return (char*) buf;
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2022-01-15 06:04:34 +00:00
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}
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