Termux x11 port

android/app/src/main/cpp/xrio/engine.h

@@ -0,0 +1,90 @@
+#pragma once
+
+#include <stdbool.h>
+
+//#define _DEBUG
+
+#if defined(_DEBUG)
+void GLCheckErrors(const char* file, int line);
+void OXRCheckErrors(XrResult result, const char* file, int line);
+
+#define GL(func) func; GLCheckErrors(__FILE__ , __LINE__);
+#define OXR(func) OXRCheckErrors(func, __FILE__ , __LINE__);
+#else
+#define GL(func) func;
+#define OXR(func) func;
+#endif
+
+#ifdef ANDROID
+#include <android/log.h>
+#define ALOGE(...) __android_log_print(ANDROID_LOG_ERROR, "OpenXR", __VA_ARGS__);
+#define ALOGV(...) __android_log_print(ANDROID_LOG_VERBOSE, "OpenXR", __VA_ARGS__);
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <jni.h>
+#define XR_USE_PLATFORM_ANDROID 1
+#define XR_USE_GRAPHICS_API_OPENGL_ES 1
+#else
+#include <cstdio>
+#define ALOGE(...) printf(__VA_ARGS__)
+#define ALOGV(...) printf(__VA_ARGS__)
+#endif
+
+#include <openxr/openxr.h>
+#include <openxr/openxr_platform.h>
+
+enum {
+  XrMaxLayerCount = 2
+};
+enum {
+  XrMaxNumEyes = 2
+};
+
+enum XrPlatformFlag {
+  PLATFORM_CONTROLLER_PICO,
+  PLATFORM_CONTROLLER_QUEST,
+  PLATFORM_EXTENSION_INSTANCE,
+  PLATFORM_EXTENSION_PASSTHROUGH,
+  PLATFORM_EXTENSION_PERFORMANCE,
+  PLATFORM_TRACKING_FLOOR,
+  PLATFORM_MAX
+};
+
+typedef union {
+  XrCompositionLayerProjection projection;
+  XrCompositionLayerQuad quad;
+} XrCompositorLayer;
+
+#ifdef ANDROID
+typedef struct {
+  jobject activity;
+  JNIEnv* env;
+  JavaVM* vm;
+} xrJava;
+#endif
+
+struct XrEngine {
+    XrInstance Instance;
+    XrSession Session;
+    XrSystemId SystemId;
+
+    XrSpace CurrentSpace;
+    XrSpace FakeSpace;
+    XrSpace HeadSpace;
+    XrSpace StageSpace;
+
+    XrTime PredictedDisplayTime;
+
+    int MainThreadId;
+    int RenderThreadId;
+
+    bool PlatformFlag[PLATFORM_MAX];
+    bool Initialized;
+};
+
+void XrEngineInit(struct XrEngine* engine, void* system, const char* name, int version);
+void XrEngineDestroy(struct XrEngine* engine);
+void XrEngineEnter(struct XrEngine* engine);
+void XrEngineLeave(struct XrEngine* engine);
+void XrEngineWaitForFrame(struct XrEngine* engine);