Alex Cohn alexcohn

alexcohn / hide_behind.xml

Last active August 17, 2019 16:40

To help with https://stackoverflow.com/q/57523822/192373 how texture view can hide behind the activity layout

	<?xml version="1.0" encoding="utf-8"?>
	<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:layout_width="match_parent"
	android:layout_height="match_parent">

	<com.example.android.camera2basic.AutoFitTextureView
	android:id="@+id/texture"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content" />

alexcohn / affine.cpp

Last active August 24, 2019 09:47

comment on http://videocortex.io/2018/Affine-Space-Types

	#include <iostream>

	enum SumOfWeights {
	N
	};

	template<class T>
	class is_time_point {
	template<typename U> static auto test(U const* u) -> decltype(u->time_since_epoch(), std::true_type());
	template<typename> static std::false_type test(...);

alexcohn / AlmostFriends.cpp

Last active July 17, 2018 18:10

	#ifndef almost_private
	#define almost_private private
	#endif
	class A {
	private:
	void Private();
	almost_private:
	void AlmostPrivate();
	}

alexcohn / qq.html

Created May 9, 2018 18:32

alexcohn / audio.html

Last active May 9, 2018 18:36

experiment around audio duration

alexcohn / SomeClass.java

Created May 6, 2018 11:22

	package com.example.thunks

	public class SomeClass {
	private long m_nativeCallback;
	public native void callback(int arg1, long arg2);
	}

alexcohn / example.c

Last active May 6, 2018 11:21

	#include <jni.h>

	JNIEXPORT void JNICALL
	Java_com_example_thunks_SomeClass_callback(JNIEnv *env, jobject obj, jint arg1, jlong arg2)
	{
	jclass SomeClass = (*env)->GetObjectClass(env, obj);
	jfieldID nativeCallback_ID = (*env)->GetFieldID(env, SomeClass, "m_nativeCallback", "J"); // it would be wise to cache this ID
	void (callbackPtr)(int, long) = (void ()(int, long)) (*env)->GetLongField(env, object, nativeCallback_ID);
	callbackPtr(arg1, arg2);
	}