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62 lines
2.4 KiB
C++
62 lines
2.4 KiB
C++
#include <emscripten/bind.h>
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#include <emscripten/val.h>
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#include <inttypes.h>
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#include "basisu_comp.h"
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#include "basisu_enc.h"
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using namespace emscripten;
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using namespace basisu;
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thread_local const val Uint8Array = val::global("Uint8Array");
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val encode(std::string image_in, int image_width, int image_height/*, MozJpegOptions opts*/) {
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basis_compressor_params params;
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basis_compressor compressor;
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image img = image(reinterpret_cast<const uint8_t*>(image_in.c_str()), image_width, image_height, 4);
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// We don’t need the encoder to read/decode files from the filesystem
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params.m_read_source_images = false;
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// Writing is unnecessary, too
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params.m_read_source_images = false;
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// Generate .basis file
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params.m_uastc = true;
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params.m_compression_level = 2; /* 0-4 */
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params.m_source_images.push_back(img);
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if(!compressor.init(params)) {
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return val(std::string("Well something went wrong during init"));
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}
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if(compressor.process() != 0) {
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return val(std::string("Well something went wrong during processing"));
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}
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auto comp_data = compressor.get_output_basis_file();
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auto js_result = Uint8Array.new_(typed_memory_view(comp_data.size(), &comp_data[0]));
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// Not sure if there is anything to free here
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return js_result;
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}
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EMSCRIPTEN_BINDINGS(my_module) {
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// value_object<MozJpegOptions>("MozJpegOptions")
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// .field("quality", &MozJpegOptions::quality)
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// .field("baseline", &MozJpegOptions::baseline)
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// .field("arithmetic", &MozJpegOptions::arithmetic)
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// .field("progressive", &MozJpegOptions::progressive)
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// .field("optimize_coding", &MozJpegOptions::optimize_coding)
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// .field("smoothing", &MozJpegOptions::smoothing)
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// .field("color_space", &MozJpegOptions::color_space)
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// .field("quant_table", &MozJpegOptions::quant_table)
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// .field("trellis_multipass", &MozJpegOptions::trellis_multipass)
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// .field("trellis_opt_zero", &MozJpegOptions::trellis_opt_zero)
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// .field("trellis_opt_table", &MozJpegOptions::trellis_opt_table)
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// .field("trellis_loops", &MozJpegOptions::trellis_loops)
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// .field("chroma_subsample", &MozJpegOptions::chroma_subsample)
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// .field("auto_subsample", &MozJpegOptions::auto_subsample)
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// .field("separate_chroma_quality", &MozJpegOptions::separate_chroma_quality)
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// .field("chroma_quality", &MozJpegOptions::chroma_quality);
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function("encode", &encode);
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}
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