[chore/migrate-gradle] Get basic folder structure and add settings.gradle

5 files changed, 254 insertions, 0 deletions

diff --git a/app/build.gradle b/app/build.gradle
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/app/build.gradle
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..9976775
--- /dev/null
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,15 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.arslaancodes.mokuassistant">
+
+    <uses-sdk android:minSdkVersion="26" android:targetSdkVersion="34"/>
+    <application android:label="moku Assistant">
+        <activity android:name="android.app.NativeActivity" android:exported="true">
+            <meta-data android:name="android.app.lib_name"
+                android:value="moku" />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>
diff --git a/app/src/main/jni/Android.mk b/app/src/main/jni/Android.mk
new file mode 100644
index 0000000..ddaaa2a
--- /dev/null
+++ b/app/src/main/jni/Android.mk
@@ -0,0 +1,19 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := vosk
+LOCAL_SRC_FILES := ../vosk/libvosk.so
+include $(PREBUILT_SHARED_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := moku
+# _eventually_ add lvgl source files to here when i feel like making the UI
+LOCAL_SRC_FILES := main.c
+# LOCAL_LDLIBS := -llog -landroid -lEGL -lGLESv1_CM
+LOCAL_LDLIBS := -llog -landroid
+LOCAL_C_INCLUDES := vosk/include
+LOCAL_SHARED_LIBRARIES := vosk
+LOCAL_STATIC_LIBRARIES := android_native_app_glue
+include $(BUILD_SHARED_LIBRARY)
+
+$(call import-module,android/native_app_glue)
diff --git a/app/src/main/jni/Application.mk b/app/src/main/jni/Application.mk
new file mode 100644
index 0000000..67a4e98
--- /dev/null
+++ b/app/src/main/jni/Application.mk
@@ -0,0 +1,2 @@
+APP_ABI := arm64-v8a
+APP_PLATFORM := android-26
diff --git a/app/src/main/jni/main.c b/app/src/main/jni/main.c
new file mode 100644
index 0000000..1c4adfc
--- /dev/null
+++ b/app/src/main/jni/main.c
@@ -0,0 +1,218 @@
+#include <vosk_api.h>
+#include <aaudio/AAudio.h>
+#include <android_native_app_glue.h>
+#include <android/log.h>
+#include <android/sensor.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <string.h>
+#include <android/native_window.h>
+#include <android/set_abort_message.h>
+#include <android/choreographer.h>
+#include <android/hardware_buffer.h>
+#include <time.h>
+
+#define LOG_TAG "moku"
+
+#define _LOG(priority, fmt, ...)                    \
+  ((void)__android_log_print((priority), (LOG_TAG), \
+                             (fmt)__VA_OPT__(, ) __VA_ARGS__))
+
+#define LOGE(fmt, ...) _LOG(ANDROID_LOG_ERROR, (fmt)__VA_OPT__(, ) __VA_ARGS__)
+#define LOGW(fmt, ...) _LOG(ANDROID_LOG_WARN, (fmt)__VA_OPT__(, ) __VA_ARGS__)
+#define LOGI(fmt, ...) _LOG(ANDROID_LOG_INFO, (fmt)__VA_OPT__(, ) __VA_ARGS__)
+
+enum Color {
+	COLOR_RED = 0x000000ff,
+	COLOR_GREEN = 0x0000ff00,
+	COLOR_BLUE = 0x00ff0000
+};
+
+struct engine {
+	struct android_app *app;
+	int window_initialized;
+	int running;
+	uint64_t last_update;
+	int color;
+};
+
+struct engine *engine_new(struct android_app* app) {
+	struct engine *engine;
+
+	engine = malloc(sizeof(struct engine));
+	if (!engine) {
+		LOGE("Failed to allocate engine!");
+		return NULL;
+	}
+
+	engine->window_initialized = 0;
+	engine->app = app;
+	engine->running = 0;
+	engine->color = COLOR_RED;
+	engine->last_update = (uint64_t)0;
+
+	return engine;
+}
+
+uint64_t get_timestamp_ns() {
+	struct timespec ts;
+	clock_gettime(CLOCK_REALTIME, &ts);
+	return (uint64_t)ts.tv_nsec + (uint64_t)ts.tv_sec * 1000000000;
+}
+
+static void engine_schedule_tick(struct engine *engine);
+
+static void engine_draw_frame(struct engine *engine) {
+	ANativeWindow_Buffer buffer;
+	int x, y;
+	size_t pixel_idx;
+
+	if (!engine->app->window) return;
+
+	if (ANativeWindow_lock(engine->app->window, &buffer, NULL) < 0) {
+		LOGE("Unable to lock window buffer");
+		return;
+	}
+
+	if (!engine->window_initialized) {
+		return;
+	}
+
+	for (y = 0; y < buffer.height; y++) {
+		for (x = 0; x < buffer.width; x++) {
+			pixel_idx = y * buffer.stride + x;
+			((uint32_t*)(buffer.bits))[pixel_idx] = (uint32_t)engine->color;
+		}
+	}
+
+	ANativeWindow_unlockAndPost(engine->app->window);
+}
+
+static void engine_update(struct engine *engine) {
+	/* uint64_t now = get_timestamp_ns();
+	if (now - engine->last_update > 1000000000LL) {
+		switch (engine->color) {
+			case COLOR_RED:
+				engine->color = COLOR_GREEN;
+				break;
+			case COLOR_GREEN:
+				engine->color = COLOR_BLUE;
+				break;
+			case COLOR_BLUE:
+				engine->color = COLOR_RED;
+				break;
+			default:
+				LOGE("unexpected color %08x", (uint32_t)engine->color);
+		}
+		engine->last_update = now;
+	} */
+}
+
+static void engine_real_tick(struct engine *engine) {
+	if (!engine->running) return;
+
+	// LOGI("tick");
+	engine_schedule_tick(engine);
+	engine_update(engine);
+	engine_draw_frame(engine);
+}
+
+static void engine_tick(long frameTimeNanos, void *data) {
+	struct engine *engine;
+
+	if (!data) return;
+	engine = (struct engine*)data;
+
+	engine_real_tick(engine);
+}
+
+static void engine_schedule_tick(struct engine *engine) {
+	AChoreographer_postFrameCallback(AChoreographer_getInstance(), engine_tick, (void*)engine);
+}
+
+/* TODO implement these stubs */
+void engine_attach_window(struct engine *engine) {
+	if (ANativeWindow_setBuffersGeometry(engine->app->window, 0, 0, AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM) < 0) {
+		engine->window_initialized = 0;
+		return;
+	}
+	engine->window_initialized = 1;	
+	engine->last_update = get_timestamp_ns();
+};
+
+void engine_detach_window(struct engine *engine) {
+	/* Called when native window for app is destroyed. 
+	 * Doesn't mean app is being killed, also happens on rotate
+	 * Normally, with a traditional OpenGL app, do cleanup here
+	 * At the moment, it's fine to just set a flag to disable the rendering loop
+	 */
+	engine->window_initialized = 0;
+};
+
+void engine_resume(struct engine *engine) { 
+	if (!engine->running) {
+		engine->running = 1;
+		engine_schedule_tick(engine);
+		LOGI("engine running");
+	}
+};
+
+
+void engine_pause(struct engine *engine) {	
+	engine->running = 0;
+	LOGI("engine paused");
+};
+
+static void engine_handle_cmd(struct android_app *app, int32_t cmd) {
+	struct engine *engine;
+
+	engine = (struct engine *)app->userData;
+
+	switch (cmd) {
+		case APP_CMD_INIT_WINDOW:
+			engine_attach_window(engine);
+			break;
+		case APP_CMD_TERM_WINDOW:
+			engine_detach_window(engine);
+			break;
+		case APP_CMD_GAINED_FOCUS:
+			engine_resume(engine);
+			break;
+		case APP_CMD_LOST_FOCUS:
+			engine_pause(engine);
+			break;
+	}
+}
+
+void android_main(struct android_app *state) {
+	/* Declarations */
+	struct android_poll_source *source;
+	struct engine *engine;
+	int events;
+
+	/* Code starts here */
+	app_dummy(); 
+
+	engine = engine_new(state);
+	if (!engine) {
+		LOGE("Failed to create engine!");
+		return;
+	}
+
+	state->userData = engine;
+	state->onAppCmd = engine_handle_cmd;
+
+	/* do stuff here */
+	
+	while (!state->destroyRequested) {
+		if (ALooper_pollAll(-1, NULL, &events, (void**)&source) >= 0) {
+			if (source) {
+				source->process(state, source);
+			}
+		}
+		/* more stuff here */
+	}
+
+	free(engine);
+}