dl_old/dl/system/dl_android.cpp

#include "dl_android.h"

#if DL_PLATFORM == DL_PLATFORM_ANDROID

#include "io/dl_input.h"
#include "system/dl_system.h"

namespace dl
{

	int32_t Android_HandleInput(android_app* app)
	{
		//auto* engine = (struct engine*)app->userData;
		auto ib = android_app_swap_input_buffers(app);
		if (ib && ib->motionEventsCount)
		{
			for (int i = 0; i < ib->motionEventsCount; i++)
			{
				auto* event = &ib->motionEvents[i];
				int32_t ptrIdx = 0;
                int32_t act = event->action & AMOTION_EVENT_ACTION_MASK;
				switch (act)
				{
				case AMOTION_EVENT_ACTION_POINTER_DOWN:
				case AMOTION_EVENT_ACTION_POINTER_UP:
					// Retrieve the index for the starting and the ending of any secondary pointers
					ptrIdx = (event->action & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) >>
						AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
				case AMOTION_EVENT_ACTION_DOWN:
				case AMOTION_EVENT_ACTION_UP:
				{
					int x = GameActivityPointerAxes_getAxisValue(
						&event->pointers[ptrIdx], AMOTION_EVENT_AXIS_X);
					int y = GameActivityPointerAxes_getAxisValue(
						&event->pointers[ptrIdx], AMOTION_EVENT_AXIS_Y);
					dl::log_msg("安卓事件：{},{}", x, y);
                    g_input->_set_cursor(x, y, false);
                    g_input->_set_key_mouse((int)MouseCode::LEFT, act == AMOTION_EVENT_ACTION_DOWN);
				}
				break;
				case AMOTION_EVENT_ACTION_MOVE:
					// Process the move action: the new coordinates for all active touch pointers
					// are inside the event->pointers[]. Compare with our internally saved
					// coordinates to find out which pointers are actually moved. Note that there is
					// no index embedded inside event->action for AMOTION_EVENT_ACTION_MOVE (there
					// might be multiple pointers moved at the same time).
					//...
					int x = GameActivityPointerAxes_getAxisValue(
						&event->pointers[ptrIdx], AMOTION_EVENT_AXIS_X);
					int y = GameActivityPointerAxes_getAxisValue(
						&event->pointers[ptrIdx], AMOTION_EVENT_AXIS_Y);
					dl::log_msg("安卓事件：{},{}", x, y);
					g_input->_set_cursor(x, y, false);
					break;
				}
			}
			android_app_clear_motion_events(ib);
		}

		// Process the KeyEvent in a similar way.
		//...
		return 0;
	}

	bool Android_ProcessEvent(android_app* app)
	{
		// Read all pending events.
		int events;
		struct android_poll_source* source;

		// If not animating, block forever waiting for events.
		// If animating, loop until all events are read, then continue
		// to draw the next frame of animation.
		while ((ALooper_pollOnce(0, nullptr, &events, (void**)&source)) >= 0)
        {
			// Process this app cycle or inset change event.
			if (source)
				source->process(source->app, source);

			// Other processing.

			if (app->destroyRequested)
				return false;
		}
		// Process input events if there are any.
		Android_HandleInput(app);
		return true;
	}

	void Android_OnAppCmd(android_app* app, int32_t cmd)
	{
		//auto platform = reinterpret_cast<AndroidPlatform*>(app->userData);
		switch (cmd)
		{
		case APP_CMD_INIT_WINDOW:
		{// 启动、丢失后重建会触发
            g_android->_sizeWindow[0] = ANativeWindow_getWidth(app->window);
            g_android->_sizeWindow[1] = ANativeWindow_getHeight(app->window);
			g_android->_surfaceState = 1;
            dl::log_easy(fmt::format("安卓重建Surface：{}, {}", g_android->_sizeWindow[0], g_android->_sizeWindow[1]));
			break;
		}
        case APP_CMD_TERM_WINDOW:
        {// 结束、丢失后会触发
            g_android->_sizeWindow[0] = 0;
            g_android->_sizeWindow[1] = 0;
            g_android->_surfaceState = 0;
			dl::log_easy("安卓销毁Surface");
            break;
        }
		case APP_CMD_CONTENT_RECT_CHANGED:
		{
			// Get the new size
			auto width = app->contentRect.right - app->contentRect.left;
			auto height = app->contentRect.bottom - app->contentRect.top;
            g_android->_sizeWindow[0] = width;
            g_android->_sizeWindow[1] = height;
            g_system->_resize();
			break;
		}
        // 这里的事件需要轮询才能触发，所以直接通过java层的Activity触发，才来得及处理
//        case APP_CMD_CONFIG_CHANGED:
//        {
//            uint32_t ret = AConfiguration_getOrientation(nullptr);
//                g_system->_set_dir(WindowDirection::UP);
//            if(ret == 2)
//                g_system->_set_dir(WindowDirection::RIGHT);
//            else
//                g_system->_set_dir(WindowDirection::UP);
//            break;
//        }
//		case APP_CMD_GAINED_FOCUS:
//		{
//
//			break;
//		}
//		case APP_CMD_LOST_FOCUS:
//		{
//			break;
//		}
		}
	}

}


extern "C"
JNIEXPORT void JNICALL
Java_com_dl_project_MainActivity_DispatchOnPause(JNIEnv* env, jobject thiz) {
	dl::g_android->_bPause = true;
}
extern "C"
JNIEXPORT void JNICALL
Java_com_dl_project_MainActivity_DispatchOnResume(JNIEnv* env, jobject thiz) {
    dl::g_android->_bPause = false;
}
#endif