build.sh QoL stuff

README.md

@@ -4,7 +4,12 @@ This requires that you write some basic bindings to the Android NDK (or use mine
 
 # Building
 
-First you must adjust `build.sh` and `launch.sh` to have correct paths to Android SDK, Android NDK and the Jetbrains RT.
-Then set `APK` variable to the desired apk package name. Use Android SDK to install build-tools and platform SDK. 
+### Prerequisites
+- The Android SDK must be installed and the appropriate Odin environment variables must be set.
+- The `keytool` binary must be in your PATH
 
-Now you can use `build.sh` to build and install the app, and `launch.sh` to run the application:
+### Steps
+Run `build.sh` to build and install the app, and `launch.sh` to run the application:
+
+# License
+The code is licensed under the Unlicense license. I do not own the app icon (Odin logo). The logo copyright is owned by [GingerBill](https://github.com/gingerbill)

build.sh

@@ -1,57 +1,31 @@
 #!/bin/bash
 
-## TODO: handle different ABIs, currently only builds for arm64
-
-APK=native_example.apk
-ANDROID_SDK_ROOT=/home/illusion/Android/Sdk
-ANDROID_NDK=$ANDROID_SDK_ROOT/ndk/26.1.10909125
-ANDROID_TOOLCHAIN=$ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64
-ANDROID_JBR=/home/illusion/android-studio/jbr
-BUILD_TOOLS=34.0.0
-PLATFORM=34
-
-# Create required dirs
-mkdir -p lib/lib/arm64-v8a
-mkdir -p bin
-
-# Compile the glue code that comes with the NDK to an object using the aarch64 crosscompiler.
-$ANDROID_TOOLCHAIN/bin/aarch64-linux-android24-clang -c $ANDROID_NDK/sources/android/native_app_glue/android_native_app_glue.c  -o android_native_app_glue.o -I $ANDROID_TOOLCHAIN/sysroot/usr/include/
-
-# Create a static lib from the glue code object
-$ANDROID_TOOLCHAIN/bin/llvm-ar rcs libandroid_native_app_glue.a android_native_app_glue.o
-
-# Compile our odin code to an object. relocation mode is set to PIC because the linker complains.
-# freestanding_arm64 should probably be preferred but raylib projects need linux_arm64, otherwise the android dynamic linker fails to find our main function.
-odin build jni/ -build-mode:obj -target:linux_arm64 -reloc-mode:pic || exit 1
-
-# Link the static library with our object and create the shared library that will hold all our native code.
-## We pass "-u ANativeActivity_onCreate" to the linker here because that symbol gets stripped by the linker even though it's required
-## This is exactly what the official ndk-build building process does, see: https://github.com/android/ndk/issues/381
-$ANDROID_TOOLCHAIN/bin/aarch64-linux-android24-clang -shared -o libmain.so jni.o libandroid_native_app_glue.a -L $ANDROID_TOOLCHAIN/sysroot/usr/lib/aarch64-linux-android/$PLATFORM/ -landroid -llog -lEGL -lGLESv3 -u ANativeActivity_onCreate 
-
-# Move the shared lib to the lib directory
-cp libmain.so lib/lib/arm64-v8a
-
-# Pack the assets of the app using a basic android jar that comes with the SDK
-## If there are asset files that need to be loaded during runtime then they should be put in an `assets` directory
-## and "-A assets" should be appended after the -I option.
-$ANDROID_SDK_ROOT/build-tools/$BUILD_TOOLS/aapt package -f -M AndroidManifest.xml -S res -I $ANDROID_SDK_ROOT/platforms/android-$PLATFORM/android.jar -A assets -F "bin/$APK.build" lib
-
 # Create a debug signing key to sign our application.
 if [ ! -f .keystore ]; then
-	"$ANDROID_JBR/bin/keytool" -genkey -dname "CN=Android Debug, O=Android, C=US" -keystore .keystore -alias androiddebugkey -storepass android -keypass android -keyalg RSA -validity 30000
+	keytool -genkey -dname "CN=Android Debug, O=Android, C=US" -keystore .keystore -alias androiddebugkey -storepass android -keypass android -keyalg RSA -validity 30000
 	if [ $? -ne 0 ]; then exit 1; fi
 fi
 
-# Sign the jar
-$ANDROID_JBR/bin/jarsigner -storepass android -keystore .keystore "bin/$APK.build" androiddebugkey > /dev/null
+# Build the shared lib
+if [[ $1 == "release" ]]; then
+	odin build . -target:linux_arm64 -subtarget:android -build-mode:shared -o:speed -define:RELEASE_BUILD=true
+else
+	odin build . -target:linux_arm64 -subtarget:android -build-mode:shared -debug -show-system-calls
+fi
 
-# Make it into an apk
-$ANDROID_SDK_ROOT/build-tools/$BUILD_TOOLS/zipalign -f 4 "bin/$APK.build" "bin/$APK"
+name=$(basename "$PWD")
 
+# Create the proper lib directories and move the shared lib to them
+# Rename the shared lib to match what we specified in the AndroidManifest.xml file
+# for the android.app.lib_name metadata value
+mkdir -p android/lib/lib/arm64-v8a
+mv $name.so android/lib/lib/arm64-v8a/libmain.so || exit 1
+
+# Bundle the directory into an apk
+odin bundle android android -android-keystore:.keystore -android-keystore-password:"android"
 
 cleanup() {
-	rm jni.o android_native_app_glue.o libandroid_native_app_glue.a bin/$APK.build
+	rm test.apk-build
 }
 
 cleanup

launch.sh

@@ -1,21 +0,0 @@
-#!/bin/bash
-
-APK=native_example.apk
-ANDROID_SDK_ROOT=/home/illusion/Android/Sdk
-ANDROID_NDK=$ANDROID_SDK_ROOT/ndk/26.1.10909125
-ANDROID_TOOLCHAIN=$ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64
-ANDROID_JBR=/home/illusion/android-studio/jbr
-BUILD_TOOLS=34.0.0
-
-get_package_activity() {
-  PACKAGE=$("$ANDROID_SDK_ROOT/build-tools/$BUILD_TOOLS/aapt" dump badging "bin/$APK" | grep package | awk -F"'" '{print $2}')
-  ACTIVITY=$("$ANDROID_SDK_ROOT/build-tools/$BUILD_TOOLS/aapt" dump badging "bin/$APK" | grep launchable-activity | awk -F"'" '{print $2}')
-}
-
-launch() {
-  get_package_activity
-  "$ANDROID_SDK_ROOT/platform-tools/adb" shell am start -n "$PACKAGE/$ACTIVITY"
-  if [ $? -ne 0 ]; then exit 1; fi
-}
-
-launch

main.odin

@@ -23,7 +23,8 @@ engine :: struct {
     shader: u32,
 }
 
-engine_init_display :: proc(engine: ^engine) {
+engine_init_display :: proc "contextless" (engine: ^engine) {
+    context = runtime.default_context()
     attribs := []i32{
         egl.SURFACE_TYPE, egl.WINDOW_BIT,
         egl.RENDERABLE_TYPE, egl.OPENGL_ES3_BIT,
@@ -35,7 +36,7 @@ engine_init_display :: proc(engine: ^engine) {
 
     display := egl.GetDisplay(egl.DEFAULT_DISPLAY)
     if display == egl.NO_DISPLAY {
-        LOG(.INFO, "NativeExampleOdin", "Naterror with eglGetDisplay")
+        LOG(.INFO, "NativeExampleOdin", "error with eglGetDisplay")
         return
     }
 
@@ -106,11 +107,11 @@ engine_init_display :: proc(engine: ^engine) {
     engine.height = h
 
     vasset := android.AAssetManager_open(engine.app.activity.assetManager, "vertex.glsl", .BUFFER)
-    defer android.AAsset_close(vasset)
     if vasset == nil {
         LOG(.INFO, "NativeExampleOdin", "error opening vertex.glsl")
         return
     }
+    defer android.AAsset_close(vasset)
     vsrc := cstring(android.AAsset_getBuffer(vasset))
     vlen := i32(android.AAsset_getLength(vasset))
 
@@ -119,11 +120,11 @@ engine_init_display :: proc(engine: ^engine) {
     gl.CompileShader(v)
 
     fasset := android.AAssetManager_open(engine.app.activity.assetManager, "fragment.glsl", .BUFFER)
-    defer android.AAsset_close(fasset)
     if fasset == nil {
         LOG(.INFO, "NativeExampleOdin", "error opening fragment.glsl")
         return
     }
+    defer android.AAsset_close(fasset)
     fsrc := cstring(android.AAsset_getBuffer(fasset))
     flen := i32(android.AAsset_getLength(fasset))
 
@@ -157,11 +158,9 @@ engine_init_display :: proc(engine: ^engine) {
 
     engine.buffer = b
     engine.shader = p
-
-    return
 }
 
-engine_draw_frame :: proc(engine: ^engine) {
+engine_draw_frame :: proc "contextless" (engine: ^engine) {
     if engine.display == nil {
         return
     }
@@ -182,7 +181,7 @@ engine_draw_frame :: proc(engine: ^engine) {
     egl.SwapBuffers(engine.display, engine.surface)
 }
 
-engine_term_display :: proc(engine: ^engine) {
+engine_term_display :: proc "contextless" (engine: ^engine) {
     if engine.display != egl.NO_DISPLAY {
         gl.DeleteProgram(engine.shader)
         gl.DeleteBuffers(1, &engine.buffer)
@@ -202,11 +201,11 @@ engine_term_display :: proc(engine: ^engine) {
     engine.surface = egl.NO_SURFACE
 }
 
-engine_handle_input :: proc(app: ^android.android_app, event: ^android.AInputEvent) -> i32 {
+engine_handle_input :: proc "c" (app: ^android.android_app, event: ^android.AInputEvent) -> i32 {
     return 0
 }
 
-engine_handle_cmd :: proc(app: ^android.android_app, cmd: android.AppCmd) {
+engine_handle_cmd :: proc "c" (app: ^android.android_app, cmd: android.AppCmd) {
     engine := cast(^engine)app.userData
 
     #partial switch (cmd) {