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Thumbnail Formats Option Ported from PrusaSlicer and add BIQU/BTT format (#2405)

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* Add needed src files and update CMake files

* Implementation of GCodeThumbnailsFormat for PNG, JPG, and QOI complete

* Implement BIQU (Big Tree Tech) Thumbnail Format

* have GCodeProcessor.post_process pass through original line end characters

* fix biqu thumbnail output
use \r\n for new lines in the biqu thumbnail portion. the firmware requires these end characters to function properly.
update names of variables and add comments to be more descriptive
replace modified Qt pixel algorithm with much simpler algorithm from BTT TFT firmware

* rename BiQU to BTT_TFT for better clarity

* remove underscore from GUI option

---------

Co-authored-by: SoftFever <103989404+SoftFever@users.noreply.github.com>
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Ocraftyone 2023-10-17 08:00:38 -04:00 • committed by GitHub
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src/libslic3r/GCode/Thumbnails.hpp Normal file
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///|/ Copyright (c) Prusa Research 2022 Lukáš Hejl @hejllukas, Vojtěch Bubník @bubnikv
///|/
///|/ PrusaSlicer is released under the terms of the AGPLv3 or higher
///|/
#ifndef slic3r_GCodeThumbnails_hpp_
#define slic3r_GCodeThumbnails_hpp_
#include "../Point.hpp"
#include "../PrintConfig.hpp"
#include "ThumbnailData.hpp"
#include <vector>
#include <memory>
#include <string_view>
#include <boost/beast/core/detail/base64.hpp>
namespace Slic3r::GCodeThumbnails {
struct CompressedImageBuffer
{
void *data { nullptr };
size_t size { 0 };
virtual ~CompressedImageBuffer() {}
virtual std::string_view tag() const = 0;
};
std::string get_hex(const unsigned int input);
std::string rjust(std::string input, unsigned int width, char fill_char);
std::unique_ptr<CompressedImageBuffer> compress_thumbnail(const ThumbnailData &data, GCodeThumbnailsFormat format);
template<typename WriteToOutput, typename ThrowIfCanceledCallback>
inline void export_thumbnails_to_file(ThumbnailsGeneratorCallback &thumbnail_cb, int plate_id, const std::vector<Vec2d> &sizes, GCodeThumbnailsFormat format, WriteToOutput output, ThrowIfCanceledCallback throw_if_canceled)
{
// Write thumbnails using base64 encoding
if (thumbnail_cb != nullptr) {
static constexpr const size_t max_row_length = 78;
ThumbnailsList thumbnails = thumbnail_cb(ThumbnailsParams{ sizes, true, true, true, true, plate_id });
short i = 0;
for (const ThumbnailData& data : thumbnails) {
if (data.is_valid()) {
auto compressed = compress_thumbnail(data, format);
if (compressed->data && compressed->size) {
if (format == GCodeThumbnailsFormat::BTT_TFT) {
// write BTT_TFT header
output((";" + rjust(get_hex(data.width), 4, '0') + rjust(get_hex(data.height), 4, '0') + "\r\n").c_str());
output((char *) compressed->data);
if (i == (thumbnails.size() - 1))
output("; bigtree thumbnail end\r\n\r\n");
} else {
std::string encoded;
encoded.resize(boost::beast::detail::base64::encoded_size(compressed->size));
encoded.resize(boost::beast::detail::base64::encode((void *) encoded.data(), (const void *) compressed->data,
compressed->size));
output((boost::format("\n;\n; %s begin %dx%d %d\n") % compressed->tag() % data.width % data.height % encoded.size())
.str()
.c_str());
while (encoded.size() > max_row_length) {
output((boost::format("; %s\n") % encoded.substr(0, max_row_length)).str().c_str());
encoded = encoded.substr(max_row_length);
}
if (encoded.size() > 0)
output((boost::format("; %s\n") % encoded).str().c_str());
output((boost::format("; %s end\n;\n") % compressed->tag()).str().c_str());
}
throw_if_canceled();
}
i++;
}
}
}
}
} // namespace Slic3r::GCodeThumbnails
#endif // slic3r_GCodeThumbnails_hpp_