mirror of
https://github.com/GoogleChromeLabs/squoosh.git
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7346511fa1
* wip * doh, whitespace * Updating emscripten, restoring export name * Updating oxipng * Build wasm * Fix oxipng; upgrade Rust * More v2-codec integration * AVIF now working * Non-working JXL * Build hqx with Rust 1.40; refactor build-rust*.sh * Set web target * wp2 wip * wp2 decode options * Better logo height when loading the logo into squoosh * Build oxi * JAKE IS AN IDIOT * wip oxipng * Fixing case sensitive imports * adding log * another log * Abort tasks when compress component removed * Adding progressive option to JXL * Fix bug going to & from original image * Exposing epf in jxl * logs * Bypass initial CSS plugin * Revert "logs" * Adding root * Fix for finding TSC on Windows * Use spawn again * Converting to module paths * Remove spawnP * silly * oops * logs * Fixing glob paths in CSS plugin * Path normalising * Normalise paths for CSS plugin * Normalise again * Use correct func * Adding lossless mode and near lossless (but hidden in UI) * Removing useless comments * Some logging * Update JXL to v0.1. (#846) * Rebuild JXL * Adding slight loss option Co-authored-by: Ingvar Stepanyan <rreverser@google.com> Co-authored-by: Luca Versari <veluca93@gmail.com>
105 lines
3.0 KiB
C++
105 lines
3.0 KiB
C++
#include <emscripten/bind.h>
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#include <emscripten/threading.h>
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#include <emscripten/val.h>
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#include "avif/avif.h"
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using namespace emscripten;
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struct AvifOptions {
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// [0 - 63]
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// 0 = lossless
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// 63 = worst quality
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int minQuantizer;
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int maxQuantizer;
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int minQuantizerAlpha;
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int maxQuantizerAlpha;
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// [0 - 6]
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// Creates 2^n tiles in that dimension
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int tileRowsLog2;
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int tileColsLog2;
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// [0 - 10]
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// 0 = slowest
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// 10 = fastest
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int speed;
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// 0 = 4:0:0
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// 1 = 4:2:0
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// 2 = 4:2:2
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// 3 = 4:4:4
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int subsample;
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};
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thread_local const val Uint8Array = val::global("Uint8Array");
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val encode(std::string buffer, int width, int height, AvifOptions options) {
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avifRWData output = AVIF_DATA_EMPTY;
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int depth = 8;
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avifPixelFormat format;
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switch (options.subsample) {
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case 0:
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format = AVIF_PIXEL_FORMAT_YUV400;
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break;
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case 1:
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format = AVIF_PIXEL_FORMAT_YUV420;
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break;
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case 2:
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format = AVIF_PIXEL_FORMAT_YUV422;
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break;
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case 3:
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format = AVIF_PIXEL_FORMAT_YUV444;
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break;
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}
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avifImage* image = avifImageCreate(width, height, depth, format);
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if (options.maxQuantizer == AVIF_QUANTIZER_LOSSLESS &&
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options.minQuantizer == AVIF_QUANTIZER_LOSSLESS &&
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options.minQuantizerAlpha == AVIF_QUANTIZER_LOSSLESS &&
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options.maxQuantizerAlpha == AVIF_QUANTIZER_LOSSLESS && format == AVIF_PIXEL_FORMAT_YUV444) {
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image->matrixCoefficients = AVIF_MATRIX_COEFFICIENTS_IDENTITY;
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} else {
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image->matrixCoefficients = AVIF_MATRIX_COEFFICIENTS_BT709;
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}
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uint8_t* rgba = (uint8_t*)buffer.c_str();
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avifRGBImage srcRGB;
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avifRGBImageSetDefaults(&srcRGB, image);
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srcRGB.pixels = rgba;
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srcRGB.rowBytes = width * 4;
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avifImageRGBToYUV(image, &srcRGB);
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avifEncoder* encoder = avifEncoderCreate();
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encoder->maxThreads = emscripten_num_logical_cores();
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encoder->minQuantizer = options.minQuantizer;
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encoder->maxQuantizer = options.maxQuantizer;
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encoder->minQuantizerAlpha = options.minQuantizerAlpha;
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encoder->maxQuantizerAlpha = options.maxQuantizerAlpha;
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encoder->tileRowsLog2 = options.tileRowsLog2;
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encoder->tileColsLog2 = options.tileColsLog2;
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encoder->speed = options.speed;
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avifResult encodeResult = avifEncoderWrite(encoder, image, &output);
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auto js_result = val::null();
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if (encodeResult == AVIF_RESULT_OK) {
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js_result = Uint8Array.new_(typed_memory_view(output.size, output.data));
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}
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avifImageDestroy(image);
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avifEncoderDestroy(encoder);
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avifRWDataFree(&output);
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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<AvifOptions>("AvifOptions")
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.field("minQuantizer", &AvifOptions::minQuantizer)
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.field("maxQuantizer", &AvifOptions::maxQuantizer)
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.field("minQuantizerAlpha", &AvifOptions::minQuantizerAlpha)
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.field("maxQuantizerAlpha", &AvifOptions::maxQuantizerAlpha)
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.field("tileRowsLog2", &AvifOptions::tileRowsLog2)
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.field("tileColsLog2", &AvifOptions::tileColsLog2)
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.field("speed", &AvifOptions::speed)
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.field("subsample", &AvifOptions::subsample);
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function("encode", &encode);
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}
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