Fixes wasm (#54) (#55)

* refer to the generic module

* from qt6.6.0 malloc and free are in the js API

Author: EddyTheCo

QtQrDec/CMakeLists.txt

@@ -13,8 +13,8 @@ if (Qt6_FOUND AND TARGET QrDec)
 		URI  QtQrDec
 		VERSION 1.0
 		SOURCES Qrimagedecoder.cpp include/Qrimagedecoder.hpp
-                QML_FILES
-                qml/QrQmlCamera.qml
+		QML_FILES
+		qml/QrQmlCamera.qml
 		qml/QrCam.qml
 		qml/QrTextCamPop.qml
 		RESOURCE_PREFIX
@@ -24,10 +24,11 @@ if (Qt6_FOUND AND TARGET QrDec)
 		${CMAKE_BINARY_DIR}/QtQrDec
 		IMPORT_PATH ${CMAKE_BINARY_DIR}
 		)
+
 	target_include_directories(QtQrDec PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
 		"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/qrCode>")
 
-        target_link_libraries(QtQrDec PUBLIC Qt6::Gui Qt6::Quick QrDec $<TARGET_NAME_IF_EXISTS:Qt6::Multimedia> MyDesigns
+	target_link_libraries(QtQrDec PUBLIC Qt6::Gui Qt6::Quick QrDec $<TARGET_NAME_IF_EXISTS:Qt6::Multimedia> MyDesigns
 		$<$<STREQUAL:$<TARGET_PROPERTY:MyDesigns,TYPE>,STATIC_LIBRARY>:MyDesignsplugin>)
 
 	install(TARGETS QtQrDec QtQrDecplugin ${out_targets_var}
@@ -45,6 +46,6 @@ if (Qt6_FOUND AND TARGET QrDec)
 		)
 
 	if(EMSCRIPTEN)
-                target_compile_definitions(QtQrDec PUBLIC USE_EMSCRIPTEN)
+		target_compile_definitions(QtQrDec PRIVATE USE_EMSCRIPTEN)
 	endif(EMSCRIPTEN)
 endif(Qt6_FOUND AND TARGET QrDec)

QtQrDec/Qrimagedecoder.cpp

@@ -41,14 +41,13 @@ EM_JS(void, js_start, (), {
                 let canvas = document.querySelector("#qrcanvas");
                 let ctx=canvas.getContext("2d");
 				const processFrame = function () {
-				//You need to define qtQR module when loading the module of the qt application.
                         ctx.drawImage(video, 0, 0, canvas.width, canvas.height);
                         const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
                         const sourceBuffer = imageData.data;
-                        const buffer = qtQR._malloc(sourceBuffer.byteLength);
-                        qtQR.HEAPU8.set(sourceBuffer, buffer);
-                        qtQR.QRImageDecoder.getdecoder().reload(buffer,video.width,video.height);
-                        qtQR._free(buffer);
+                        const buffer = _malloc(sourceBuffer.byteLength);
+                        HEAPU8.set(sourceBuffer, buffer);
+                        Module.QRImageDecoder.getdecoder().reload(buffer,video.width,video.height);
+                        _free(buffer);
                         if(window.localStream.active)
                         {
                           requestAnimationFrame(processFrame);