From 51a614a419e9745d275793e36b6aab295bf1e8e3 Mon Sep 17 00:00:00 2001
From: Lorn Potter <lorn.potter@gmail.com>
Date: Sat, 30 Jun 2018 08:48:52 +1000
Subject: wasm: rename platform, refactor files and other things

Task-number: QTBUG-69168
Change-Id: I78a3ad5e16fbb1046eedf2056583c022f7a27d5b
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
---
 mkspecs/features/wasm/wasm.prf | 97 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 mkspecs/features/wasm/wasm.prf

(limited to 'mkspecs/features/wasm/wasm.prf')

diff --git a/mkspecs/features/wasm/wasm.prf b/mkspecs/features/wasm/wasm.prf
new file mode 100644
index 0000000000..bea50f98f0
--- /dev/null
+++ b/mkspecs/features/wasm/wasm.prf
@@ -0,0 +1,97 @@
+
+# DESTDIR will be emtpy if not set in the app .pro file; make sure it has a value
+isEmpty(DESTDIR) : DESTDIR = $$OUT_PWD
+
+# Copies the given files to the destination directory
+defineTest(copyToDestDir) {
+    files = $$1
+
+    for(FILE, files) {
+        # Replace slashes in paths with backslashes for Windows
+        win32:FILE ~= s,/,\\,g
+        win32:DDIR ~= s,/,\\,g
+
+        QMAKE_POST_LINK += $$QMAKE_COPY $$quote($$FILE) $$quote($$DESTDIR) $$escape_expand(\\n\\t)
+    }
+    export(QMAKE_POST_LINK)
+}
+
+# Create js and wasm files for applications
+contains(TEMPLATE, .*app) {
+    TARGET_BASE = $${TARGET}
+    TARGET_HTML = $${TARGET}.html
+    TARGET_JS = $${TARGET}.js
+
+    # Make the emscripten compiler generate a js file
+    TARGET = $$TARGET_JS
+
+    QMAKE_INCDIR += $$(HOME)/.emscripten_ports/openssl/include
+
+    CONFIG += static
+        js_file.files = TARGET_JS
+        js_file.path += $$target.path
+        isEmpty(js_file.path)
+          js_file.path += ./
+        INSTALLS += js_file
+
+    !contains(CONFIG,config_test):!build_pass:cross_compile: {
+        QMAKE_CFLAGS += -s WASM=1 -s \"BINARYEN_METHOD=\'native-wasm\'\" -s \"BINARYEN_TRAP_MODE=\'clamp\'\"
+        QMAKE_CXXFLAGS += -s WASM=1 -s \"BINARYEN_METHOD=\'native-wasm\'\" -s \"BINARYEN_TRAP_MODE=\'clamp\'\"
+        QMAKE_LFLAGS += -s WASM=1 -s \"BINARYEN_METHOD=\'native-wasm\'\" -s \"BINARYEN_TRAP_MODE=\'clamp\'\"
+    }
+
+    # Copy hosting html and javascript to the application build directory.
+    exists($$[QT_INSTALL_PLUGINS]/platforms/wasm_shell.html) {
+        # dont pass this until it's installed somewhere
+        # otherwise makespec test fails during qt configure
+        WASM_PLUGIN_PATH = $$[QT_INSTALL_PLUGINS]/platforms
+    } else {
+        ## internal build. not installed
+        WASM_PLUGIN_PATH = $$PWD/../../../src/plugins/platforms/wasm
+    }
+
+    # Copy/Generate main .html file (e.g. myapp.html) from the webassembly_shell.html by
+    # replacing the app name placeholder with the actual app name.
+    apphtml.target = $$DESTDIR/$$TARGET_HTML
+    apphtml.commands += sed -e s/APPNAME/$$TARGET_BASE/g $$quote($$WASM_PLUGIN_PATH/wasm_shell.html) > $$quote($$DESTDIR/$$TARGET_HTML) $$escape_expand(\\n\\t)
+
+    # Copy qtloader.js
+    appjs.target = $$DESTDIR/qtloader.js
+    appjs.commands += $$QMAKE_COPY $$quote($$WASM_PLUGIN_PATH/qtloader.js) $$quote($$DESTDIR) $$escape_expand(\\n\\t)
+
+    # Copy qtlogo.svg
+    qtlogo.target = $$DESTDIR/qtlogo.svg
+    qtlogo.commands += $$QMAKE_COPY $$quote($$WASM_PLUGIN_PATH/qtlogo.svg) $$quote($$DESTDIR) $$escape_expand(\\n\\t)
+
+    QMAKE_EXTRA_TARGETS += apphtml appjs qtlogo
+    POST_TARGETDEPS += $$apphtml.target $$appjs.target $$qtlogo.target
+
+    # Add manual target to make "make -B shellfiles" work.
+    shellfiles.target = shellfiles
+    shellfiles.depends = $$apphtml.target $$appjs.target $$qtlogo.target
+    QMAKE_EXTRA_TARGETS += shellfiles
+
+    # emscripten ports are linked into the main module (this app), not the Qt
+    # libs which reference them
+    qt {
+        qt_depends = $$resolve_depends(QT, "QT.")
+        contains(qt_depends, core(-private)?): QMAKE_LFLAGS += \
+            $$QMAKE_LIBS_THREAD $$QMAKE_LIBS_ZLIB
+        contains(qt_depends, gui(-private)?): QMAKE_LFLAGS += \
+            $$QMAKE_LIBS_FREETYPE $$QMAKE_LIBS_LIBPNG
+    }
+}
+
+# Creates the stand-alone version of the library from bitcode
+!static:contains(TEMPLATE, .*lib): {
+    load(resolve_target)
+    QMAKE_POST_LINK += $$QMAKE_LINK_SHLIB $$QMAKE_RESOLVED_TARGET -o $${QMAKE_RESOLVED_TARGET}.js
+
+    QMAKE_INCDIR += $$(HOME)/.emscripten_ports/openssl/include
+
+    !build_pass:cross_compile: {
+        QMAKE_CFLAGS += -s WASM=1 -s \"BINARYEN_METHOD=\'native-wasm\'\"
+        QMAKE_LFLAGS += -s WASM=1 -s \"BINARYEN_METHOD=\'native-wasm\'\"
+        QMAKE_CXXFLAGS += -s WASM=1 -s \"BINARYEN_METHOD=\'native-wasm\'\"
+    }
+}
-- 
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