Rollup build

codecs/wp2/enc/wp2_enc.cpp

@@ -0,0 +1,38 @@
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
+#include <cstdio>
+#include "src/wp2/encode.h"
+
+using namespace emscripten;
+
+thread_local const val Uint8Array = val::global("Uint8Array");
+
+val encode(std::string image_in, int image_width, int image_height, WP2::EncoderConfig config) {
+  uint8_t* image_buffer = (uint8_t*)image_in.c_str();
+  WP2::ArgbBuffer src = WP2::ArgbBuffer();
+  WP2Status status =
+      src.Import(WP2_rgbA_32,  // Format. WP2_RGBA_32 is the same but NOT premultiplied alpha
+                 image_width, image_height, image_buffer, 4 * image_width);
+  if (status != WP2_STATUS_OK) {
+    return val::null();
+  }
+
+  WP2::MemoryWriter memory_writer;
+  status = WP2::Encode(src, &memory_writer, config);
+  if (status != WP2_STATUS_OK) {
+    return val::null();
+  }
+
+  return Uint8Array.new_(typed_memory_view(memory_writer.size_, memory_writer.mem_));
+}
+
+EMSCRIPTEN_BINDINGS(my_module) {
+  value_object<WP2::EncoderConfig>("WP2EncoderConfig")
+      .field("quality", &WP2::EncoderConfig::quality)
+      .field("alpha_quality", &WP2::EncoderConfig::alpha_quality)
+      .field("speed", &WP2::EncoderConfig::speed)
+      .field("pass", &WP2::EncoderConfig::pass)
+      .field("sns", &WP2::EncoderConfig::sns);
+
+  function("encode", &encode);
+}