mirror of
https://github.com/GoogleChromeLabs/squoosh.git
synced 2025-11-14 01:37:26 +00:00
61 lines
2.7 KiB
C++
61 lines
2.7 KiB
C++
#include <emscripten/bind.h>
|
|
#include <emscripten/val.h>
|
|
#include <inttypes.h>
|
|
#include "basisu_global_selector_palette.h"
|
|
#include "basisu_transcoder.h"
|
|
|
|
using namespace emscripten;
|
|
using namespace basisu;
|
|
|
|
thread_local const val Uint8ClampedArray = val::global("Uint8ClampedArray");
|
|
thread_local const val ImageData = val::global("ImageData");
|
|
|
|
val decode(std::string data) {
|
|
basist::basisu_transcoder_init();
|
|
|
|
basist::etc1_global_selector_codebook sel_codebook = basist::etc1_global_selector_codebook(
|
|
basist::g_global_selector_cb_size, basist::g_global_selector_cb);
|
|
// basis_data data = basis_data(sel_codebook);
|
|
basist::basisu_transcoder transcoder = basist::basisu_transcoder(&sel_codebook);
|
|
|
|
const void* dataPtr = reinterpret_cast<const void*>(data.c_str());
|
|
auto dataSize = data.size();
|
|
basist::basisu_image_info info;
|
|
transcoder.get_image_info(dataPtr, dataSize, info, 0 /* image_index */);
|
|
|
|
auto buffer = std::vector<uint8_t>(info.m_width * info.m_height * 4);
|
|
auto ok = transcoder.transcode_image_level(dataPtr, dataSize,
|
|
/* image_index */ 0, /* level_index */ 0,
|
|
buffer.data(), buffer.size() / 4,
|
|
basist::transcoder_texture_format::cTFRGBA32);
|
|
if (!ok) {
|
|
return val(std::string("Could not decode"));
|
|
}
|
|
|
|
auto img_data_data = Uint8ClampedArray.new_(typed_memory_view(buffer.size(), buffer.data()));
|
|
auto imgData = ImageData.new_(img_data_data, info.m_width, info.m_height);
|
|
return imgData;
|
|
}
|
|
|
|
EMSCRIPTEN_BINDINGS(my_module) {
|
|
// value_object<MozJpegOptions>("MozJpegOptions")
|
|
// .field("quality", &MozJpegOptions::quality)
|
|
// .field("baseline", &MozJpegOptions::baseline)
|
|
// .field("arithmetic", &MozJpegOptions::arithmetic)
|
|
// .field("progressive", &MozJpegOptions::progressive)
|
|
// .field("optimize_coding", &MozJpegOptions::optimize_coding)
|
|
// .field("smoothing", &MozJpegOptions::smoothing)
|
|
// .field("color_space", &MozJpegOptions::color_space)
|
|
// .field("quant_table", &MozJpegOptions::quant_table)
|
|
// .field("trellis_multipass", &MozJpegOptions::trellis_multipass)
|
|
// .field("trellis_opt_zero", &MozJpegOptions::trellis_opt_zero)
|
|
// .field("trellis_opt_table", &MozJpegOptions::trellis_opt_table)
|
|
// .field("trellis_loops", &MozJpegOptions::trellis_loops)
|
|
// .field("chroma_subsample", &MozJpegOptions::chroma_subsample)
|
|
// .field("auto_subsample", &MozJpegOptions::auto_subsample)
|
|
// .field("separate_chroma_quality", &MozJpegOptions::separate_chroma_quality)
|
|
// .field("chroma_quality", &MozJpegOptions::chroma_quality);
|
|
|
|
function("decode", &decode);
|
|
}
|