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53 lines
1.5 KiB
C++
53 lines
1.5 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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struct BasisOptions {
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uint8_t quality;
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};
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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, BasisOptions opts) {
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basisu_encoder_init();
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basis_compressor_params params;
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basis_compressor compressor;
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image img =
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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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// No printf pls
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params.m_status_output = false;
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params.m_compression_level = opts.quality;
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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<BasisOptions>("BasisOptions").field("quality", &BasisOptions::quality);
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function("encode", &encode);
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}
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