src/core/android/SDL_android.c
author Sam Lantinga <slouken@libsdl.org>
Sat, 02 Jan 2016 10:10:34 -0800
changeset 9998 f67cf37e9cd4
parent 9880 3bbeb623181c
child 10032 e661304722ce
permissions -rw-r--r--
Updated copyright to 2016
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#include "SDL_stdinc.h"
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#include "SDL_assert.h"
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#include "SDL_hints.h"
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#include "SDL_log.h"
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#ifdef __ANDROID__
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#include "SDL_system.h"
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#include "SDL_android.h"
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#include <EGL/egl.h>
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#include "../../events/SDL_events_c.h"
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#include "../../video/android/SDL_androidkeyboard.h"
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#include "../../video/android/SDL_androidmouse.h"
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#include "../../video/android/SDL_androidtouch.h"
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#include "../../video/android/SDL_androidvideo.h"
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#include "../../video/android/SDL_androidwindow.h"
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#include "../../joystick/android/SDL_sysjoystick_c.h"
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#include <android/log.h>
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#include <pthread.h>
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#include <sys/types.h>
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#include <unistd.h>
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#define LOG_TAG "SDL_android"
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/* #define LOGI(...)  __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__) */
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/* #define LOGE(...)  __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__) */
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#define LOGI(...) do {} while (0)
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#define LOGE(...) do {} while (0)
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/* Uncomment this to log messages entering and exiting methods in this file */
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/* #define DEBUG_JNI */
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static void Android_JNI_ThreadDestroyed(void*);
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/*******************************************************************************
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 This file links the Java side of Android with libsdl
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*******************************************************************************/
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#include <jni.h>
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#include <android/log.h>
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/*******************************************************************************
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                               Globals
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*******************************************************************************/
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static pthread_key_t mThreadKey;
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static JavaVM* mJavaVM;
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/* Main activity */
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static jclass mActivityClass;
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/* method signatures */
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static jmethodID midGetNativeSurface;
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static jmethodID midAudioInit;
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static jmethodID midAudioWriteShortBuffer;
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static jmethodID midAudioWriteByteBuffer;
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static jmethodID midAudioQuit;
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static jmethodID midPollInputDevices;
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/* Accelerometer data storage */
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static float fLastAccelerometer[3];
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static SDL_bool bHasNewData;
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/*******************************************************************************
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                 Functions called by JNI
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*******************************************************************************/
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/* Library init */
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JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved)
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{
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    JNIEnv *env;
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    mJavaVM = vm;
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    LOGI("JNI_OnLoad called");
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    if ((*mJavaVM)->GetEnv(mJavaVM, (void**) &env, JNI_VERSION_1_4) != JNI_OK) {
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        LOGE("Failed to get the environment using GetEnv()");
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        return -1;
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    }
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    /*
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     * Create mThreadKey so we can keep track of the JNIEnv assigned to each thread
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     * Refer to http://developer.android.com/guide/practices/design/jni.html for the rationale behind this
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     */
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    if (pthread_key_create(&mThreadKey, Android_JNI_ThreadDestroyed) != 0) {
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        __android_log_print(ANDROID_LOG_ERROR, "SDL", "Error initializing pthread key");
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    }
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    Android_JNI_SetupThread();
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    return JNI_VERSION_1_4;
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}
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/* Called before SDL_main() to initialize JNI bindings */
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JNIEXPORT void JNICALL SDL_Android_Init(JNIEnv* mEnv, jclass cls)
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{
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    __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL_Android_Init()");
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    Android_JNI_SetupThread();
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    mActivityClass = (jclass)((*mEnv)->NewGlobalRef(mEnv, cls));
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    midGetNativeSurface = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
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                                "getNativeSurface","()Landroid/view/Surface;");
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    midAudioInit = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
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                                "audioInit", "(IZZI)I");
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    midAudioWriteShortBuffer = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
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                                "audioWriteShortBuffer", "([S)V");
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    midAudioWriteByteBuffer = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
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                                "audioWriteByteBuffer", "([B)V");
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    midAudioQuit = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
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                                "audioQuit", "()V");
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    midPollInputDevices = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
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                                "pollInputDevices", "()V");
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    bHasNewData = SDL_FALSE;
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    if (!midGetNativeSurface || !midAudioInit ||
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       !midAudioWriteShortBuffer || !midAudioWriteByteBuffer || !midAudioQuit || !midPollInputDevices) {
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        __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL: Couldn't locate Java callbacks, check that they're named and typed correctly");
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    }
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    __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL_Android_Init() finished!");
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}
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/* Drop file */
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void Java_org_libsdl_app_SDLActivity_onNativeDropFile(
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                                    JNIEnv* env, jclass jcls,
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                                    jstring filename)
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{
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    const char *path = (*env)->GetStringUTFChars(env, filename, NULL);
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    SDL_SendDropFile(path);
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    (*env)->ReleaseStringUTFChars(env, filename, path);
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}
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/* Resize */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeResize(
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                                    JNIEnv* env, jclass jcls,
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                                    jint width, jint height, jint format, jfloat rate)
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{
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    Android_SetScreenResolution(width, height, format, rate);
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}
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/* Paddown */
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JNIEXPORT jint JNICALL Java_org_libsdl_app_SDLActivity_onNativePadDown(
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                                    JNIEnv* env, jclass jcls,
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                                    jint device_id, jint keycode)
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{
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    return Android_OnPadDown(device_id, keycode);
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}
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/* Padup */
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JNIEXPORT jint JNICALL Java_org_libsdl_app_SDLActivity_onNativePadUp(
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                                   JNIEnv* env, jclass jcls,
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                                   jint device_id, jint keycode)
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{
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    return Android_OnPadUp(device_id, keycode);
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}
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/* Joy */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeJoy(
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                                    JNIEnv* env, jclass jcls,
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                                    jint device_id, jint axis, jfloat value)
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{
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    Android_OnJoy(device_id, axis, value);
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}
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/* POV Hat */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeHat(
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                                    JNIEnv* env, jclass jcls,
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                                    jint device_id, jint hat_id, jint x, jint y)
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{
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    Android_OnHat(device_id, hat_id, x, y);
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}
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JNIEXPORT jint JNICALL Java_org_libsdl_app_SDLActivity_nativeAddJoystick(
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    JNIEnv* env, jclass jcls,
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    jint device_id, jstring device_name, jint is_accelerometer, 
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    jint nbuttons, jint naxes, jint nhats, jint nballs)
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{
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    int retval;
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    const char *name = (*env)->GetStringUTFChars(env, device_name, NULL);
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    retval = Android_AddJoystick(device_id, name, (SDL_bool) is_accelerometer, nbuttons, naxes, nhats, nballs);
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    (*env)->ReleaseStringUTFChars(env, device_name, name);
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    return retval;
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}
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JNIEXPORT jint JNICALL Java_org_libsdl_app_SDLActivity_nativeRemoveJoystick(
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    JNIEnv* env, jclass jcls, jint device_id)
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{
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    return Android_RemoveJoystick(device_id);
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}
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/* Surface Created */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeSurfaceChanged(JNIEnv* env, jclass jcls)
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{
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    SDL_WindowData *data;
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    SDL_VideoDevice *_this;
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    if (Android_Window == NULL || Android_Window->driverdata == NULL ) {
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        return;
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    }
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    _this =  SDL_GetVideoDevice();
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    data =  (SDL_WindowData *) Android_Window->driverdata;
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    /* If the surface has been previously destroyed by onNativeSurfaceDestroyed, recreate it here */
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    if (data->egl_surface == EGL_NO_SURFACE) {
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        if(data->native_window) {
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            ANativeWindow_release(data->native_window);
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        }
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        data->native_window = Android_JNI_GetNativeWindow();
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        data->egl_surface = SDL_EGL_CreateSurface(_this, (NativeWindowType) data->native_window);
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    }
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    /* GL Context handling is done in the event loop because this function is run from the Java thread */
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}
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/* Surface Destroyed */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeSurfaceDestroyed(JNIEnv* env, jclass jcls)
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{
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    /* We have to clear the current context and destroy the egl surface here
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     * Otherwise there's BAD_NATIVE_WINDOW errors coming from eglCreateWindowSurface on resume
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     * Ref: http://stackoverflow.com/questions/8762589/eglcreatewindowsurface-on-ics-and-switching-from-2d-to-3d
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     */
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    SDL_WindowData *data;
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    SDL_VideoDevice *_this;
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    if (Android_Window == NULL || Android_Window->driverdata == NULL ) {
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        return;
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    }
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    _this =  SDL_GetVideoDevice();
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    data = (SDL_WindowData *) Android_Window->driverdata;
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    if (data->egl_surface != EGL_NO_SURFACE) {
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        SDL_EGL_MakeCurrent(_this, NULL, NULL);
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        SDL_EGL_DestroySurface(_this, data->egl_surface);
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        data->egl_surface = EGL_NO_SURFACE;
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    }
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    /* GL Context handling is done in the event loop because this function is run from the Java thread */
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}
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/* Keydown */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeKeyDown(
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                                    JNIEnv* env, jclass jcls, jint keycode)
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{
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    Android_OnKeyDown(keycode);
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}
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/* Keyup */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeKeyUp(
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                                    JNIEnv* env, jclass jcls, jint keycode)
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{
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    Android_OnKeyUp(keycode);
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}
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/* Keyboard Focus Lost */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeKeyboardFocusLost(
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                                    JNIEnv* env, jclass jcls)
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{
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    /* Calling SDL_StopTextInput will take care of hiding the keyboard and cleaning up the DummyText widget */
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    SDL_StopTextInput();
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}
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/* Touch */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeTouch(
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                                    JNIEnv* env, jclass jcls,
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                                    jint touch_device_id_in, jint pointer_finger_id_in,
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                                    jint action, jfloat x, jfloat y, jfloat p)
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{
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    Android_OnTouch(touch_device_id_in, pointer_finger_id_in, action, x, y, p);
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}
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/* Mouse */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeMouse(
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                                    JNIEnv* env, jclass jcls,
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                                    jint button, jint action, jfloat x, jfloat y)
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{
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    Android_OnMouse(button, action, x, y);
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}
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/* Accelerometer */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeAccel(
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                                    JNIEnv* env, jclass jcls,
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                                    jfloat x, jfloat y, jfloat z)
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{
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    fLastAccelerometer[0] = x;
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    fLastAccelerometer[1] = y;
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    fLastAccelerometer[2] = z;
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    bHasNewData = SDL_TRUE;
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}
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/* Low memory */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_nativeLowMemory(
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                                    JNIEnv* env, jclass cls)
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{
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    SDL_SendAppEvent(SDL_APP_LOWMEMORY);
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}
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/* Quit */
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JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_nativeQuit(
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                                    JNIEnv* env, jclass cls)
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{
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    /* Discard previous events. The user should have handled state storage
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     * in SDL_APP_WILLENTERBACKGROUND. After nativeQuit() is called, no
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     * events other than SDL_QUIT and SDL_APP_TERMINATING should fire */
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    SDL_FlushEvents(SDL_FIRSTEVENT, SDL_LASTEVENT);
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    /* Inject a SDL_QUIT event */
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    SDL_SendQuit();
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    SDL_SendAppEvent(SDL_APP_TERMINATING);
gabomdq@7910
   336
    /* Resume the event loop so that the app can catch SDL_QUIT which
gabomdq@7910
   337
     * should now be the top event in the event queue. */
gabomdq@7910
   338
    if (!SDL_SemValue(Android_ResumeSem)) SDL_SemPost(Android_ResumeSem);
slouken@4995
   339
}
slouken@4995
   340
gabomdq@7663
   341
/* Pause */
dimitris@8760
   342
JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_nativePause(
slouken@6186
   343
                                    JNIEnv* env, jclass cls)
slouken@6186
   344
{
gabomdq@8039
   345
    __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "nativePause()");
slouken@6186
   346
    if (Android_Window) {
slouken@6186
   347
        SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@6191
   348
        SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
gabomdq@8039
   349
        SDL_SendAppEvent(SDL_APP_WILLENTERBACKGROUND);
gabomdq@8039
   350
        SDL_SendAppEvent(SDL_APP_DIDENTERBACKGROUND);
gabomdq@8039
   351
    
gabomdq@8039
   352
        /* *After* sending the relevant events, signal the pause semaphore 
gabomdq@8039
   353
         * so the event loop knows to pause and (optionally) block itself */
gabomdq@8039
   354
        if (!SDL_SemValue(Android_PauseSem)) SDL_SemPost(Android_PauseSem);
slouken@6186
   355
    }
slouken@6186
   356
}
slouken@6186
   357
gabomdq@7663
   358
/* Resume */
dimitris@8760
   359
JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_nativeResume(
slouken@6186
   360
                                    JNIEnv* env, jclass cls)
slouken@6186
   361
{
slouken@7190
   362
    __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "nativeResume()");
slouken@7190
   363
slouken@6186
   364
    if (Android_Window) {
gabomdq@8047
   365
        SDL_SendAppEvent(SDL_APP_WILLENTERFOREGROUND);
gabomdq@8047
   366
        SDL_SendAppEvent(SDL_APP_DIDENTERFOREGROUND);
gabomdq@8047
   367
        SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0);
gabomdq@8047
   368
        SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_RESTORED, 0, 0);
gabomdq@6330
   369
        /* Signal the resume semaphore so the event loop knows to resume and restore the GL Context
gabomdq@6330
   370
         * We can't restore the GL Context here because it needs to be done on the SDL main thread
gabomdq@6330
   371
         * and this function will be called from the Java thread instead.
gabomdq@6330
   372
         */
gabomdq@6330
   373
        if (!SDL_SemValue(Android_ResumeSem)) SDL_SemPost(Android_ResumeSem);
slouken@6186
   374
    }
slouken@6186
   375
}
slouken@6186
   376
dimitris@8760
   377
JNIEXPORT void JNICALL Java_org_libsdl_app_SDLInputConnection_nativeCommitText(
slouken@6555
   378
                                    JNIEnv* env, jclass cls,
slouken@6555
   379
                                    jstring text, jint newCursorPosition)
slouken@6555
   380
{
ewing@7501
   381
    const char *utftext = (*env)->GetStringUTFChars(env, text, NULL);
slouken@6555
   382
slouken@6555
   383
    SDL_SendKeyboardText(utftext);
slouken@6555
   384
ewing@7501
   385
    (*env)->ReleaseStringUTFChars(env, text, utftext);
slouken@6555
   386
}
slouken@6555
   387
dimitris@8760
   388
JNIEXPORT void JNICALL Java_org_libsdl_app_SDLInputConnection_nativeSetComposingText(
slouken@6555
   389
                                    JNIEnv* env, jclass cls,
slouken@6555
   390
                                    jstring text, jint newCursorPosition)
slouken@6555
   391
{
ewing@7501
   392
    const char *utftext = (*env)->GetStringUTFChars(env, text, NULL);
slouken@6555
   393
slouken@6555
   394
    SDL_SendEditingText(utftext, 0, 0);
slouken@6555
   395
ewing@7501
   396
    (*env)->ReleaseStringUTFChars(env, text, utftext);
slouken@6555
   397
}
slouken@6555
   398
philipp@9268
   399
JNIEXPORT jstring JNICALL Java_org_libsdl_app_SDLActivity_nativeGetHint(JNIEnv* env, jclass cls, jstring name) {
alexey@8896
   400
    const char *utfname = (*env)->GetStringUTFChars(env, name, NULL);
alexey@8896
   401
    const char *hint = SDL_GetHint(utfname);
slouken@6555
   402
alexey@8896
   403
    jstring result = (*env)->NewStringUTF(env, hint);
alexey@8896
   404
    (*env)->ReleaseStringUTFChars(env, name, utfname);
alexey@8896
   405
alexey@8896
   406
    return result;
alexey@8896
   407
}
slouken@6555
   408
slouken@4964
   409
/*******************************************************************************
slouken@4964
   410
             Functions called by SDL into Java
slouken@4964
   411
*******************************************************************************/
slouken@6284
   412
ewing@7501
   413
static int s_active = 0;
ewing@7501
   414
struct LocalReferenceHolder
slouken@6284
   415
{
slouken@6284
   416
    JNIEnv *m_env;
slouken@6650
   417
    const char *m_func;
slouken@6284
   418
};
slouken@6284
   419
ewing@7501
   420
static struct LocalReferenceHolder LocalReferenceHolder_Setup(const char *func)
ewing@7501
   421
{
ewing@7501
   422
    struct LocalReferenceHolder refholder;
ewing@7501
   423
    refholder.m_env = NULL;
ewing@7501
   424
    refholder.m_func = func;
ewing@7501
   425
#ifdef DEBUG_JNI
ewing@7501
   426
    SDL_Log("Entering function %s", func);
ewing@7501
   427
#endif
ewing@7501
   428
    return refholder;
ewing@7501
   429
}
ewing@7501
   430
ewing@7501
   431
static SDL_bool LocalReferenceHolder_Init(struct LocalReferenceHolder *refholder, JNIEnv *env)
ewing@7501
   432
{
ewing@7501
   433
    const int capacity = 16;
ewing@7501
   434
    if ((*env)->PushLocalFrame(env, capacity) < 0) {
ewing@7501
   435
        SDL_SetError("Failed to allocate enough JVM local references");
philipp@7516
   436
        return SDL_FALSE;
ewing@7501
   437
    }
ewing@7501
   438
    ++s_active;
ewing@7501
   439
    refholder->m_env = env;
ewing@7501
   440
    return SDL_TRUE;
ewing@7501
   441
}
ewing@7501
   442
ewing@7501
   443
static void LocalReferenceHolder_Cleanup(struct LocalReferenceHolder *refholder)
ewing@7501
   444
{
ewing@7501
   445
#ifdef DEBUG_JNI
ewing@7501
   446
    SDL_Log("Leaving function %s", refholder->m_func);
ewing@7501
   447
#endif
ewing@7501
   448
    if (refholder->m_env) {
ewing@7501
   449
        JNIEnv* env = refholder->m_env;
ewing@7501
   450
        (*env)->PopLocalFrame(env, NULL);
ewing@7501
   451
        --s_active;
ewing@7501
   452
    }
ewing@7501
   453
}
ewing@7501
   454
philipp@9594
   455
static SDL_bool LocalReferenceHolder_IsActive(void)
ewing@7501
   456
{
gabomdq@9173
   457
    return s_active > 0;
gabomdq@9173
   458
}
gabomdq@9173
   459
gabomdq@7659
   460
ANativeWindow* Android_JNI_GetNativeWindow(void)
slouken@4964
   461
{
gabomdq@7659
   462
    ANativeWindow* anw;
gabomdq@7659
   463
    jobject s;
slouken@6792
   464
    JNIEnv *env = Android_JNI_GetEnv();
slouken@6792
   465
gabomdq@7659
   466
    s = (*env)->CallStaticObjectMethod(env, mActivityClass, midGetNativeSurface);
gabomdq@7659
   467
    anw = ANativeWindow_fromSurface(env, s);
gabomdq@7659
   468
    (*env)->DeleteLocalRef(env, s);
gabomdq@7659
   469
  
gabomdq@7659
   470
    return anw;
gabomdq@7567
   471
}
gabomdq@7567
   472
ewing@7501
   473
void Android_JNI_SetActivityTitle(const char *title)
slouken@4998
   474
{
slouken@4998
   475
    jmethodID mid;
gabomdq@6354
   476
    JNIEnv *mEnv = Android_JNI_GetEnv();
ewing@7501
   477
    mid = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,"setActivityTitle","(Ljava/lang/String;)Z");
slouken@4998
   478
    if (mid) {
ewing@7501
   479
        jstring jtitle = (jstring)((*mEnv)->NewStringUTF(mEnv, title));
ewing@7501
   480
        (*mEnv)->CallStaticBooleanMethod(mEnv, mActivityClass, mid, jtitle);
ewing@7501
   481
        (*mEnv)->DeleteLocalRef(mEnv, jtitle);
slouken@4998
   482
    }
slouken@4964
   483
}
slouken@4964
   484
ewing@7501
   485
SDL_bool Android_JNI_GetAccelerometerValues(float values[3])
slouken@5000
   486
{
slouken@5000
   487
    int i;
slouken@6212
   488
    SDL_bool retval = SDL_FALSE;
slouken@6212
   489
slouken@6212
   490
    if (bHasNewData) {
slouken@6212
   491
        for (i = 0; i < 3; ++i) {
slouken@6212
   492
            values[i] = fLastAccelerometer[i];
slouken@6212
   493
        }
philipp@9271
   494
        bHasNewData = SDL_FALSE;
slouken@6212
   495
        retval = SDL_TRUE;
slouken@5000
   496
    }
slouken@6212
   497
slouken@6212
   498
    return retval;
slouken@5000
   499
}
slouken@5000
   500
slouken@8055
   501
static void Android_JNI_ThreadDestroyed(void* value)
slouken@8055
   502
{
gabomdq@6354
   503
    /* The thread is being destroyed, detach it from the Java VM and set the mThreadKey value to NULL as required */
gabomdq@6354
   504
    JNIEnv *env = (JNIEnv*) value;
gabomdq@6354
   505
    if (env != NULL) {
ewing@7501
   506
        (*mJavaVM)->DetachCurrentThread(mJavaVM);
gabomdq@6354
   507
        pthread_setspecific(mThreadKey, NULL);
gabomdq@6354
   508
    }
gabomdq@6354
   509
}
gabomdq@6354
   510
slouken@8055
   511
JNIEnv* Android_JNI_GetEnv(void)
slouken@8055
   512
{
gabomdq@6354
   513
    /* From http://developer.android.com/guide/practices/jni.html
gabomdq@6354
   514
     * All threads are Linux threads, scheduled by the kernel.
gabomdq@6354
   515
     * They're usually started from managed code (using Thread.start), but they can also be created elsewhere and then
gabomdq@6354
   516
     * attached to the JavaVM. For example, a thread started with pthread_create can be attached with the
gabomdq@6354
   517
     * JNI AttachCurrentThread or AttachCurrentThreadAsDaemon functions. Until a thread is attached, it has no JNIEnv,
gabomdq@6354
   518
     * and cannot make JNI calls.
gabomdq@6354
   519
     * Attaching a natively-created thread causes a java.lang.Thread object to be constructed and added to the "main"
gabomdq@6354
   520
     * ThreadGroup, making it visible to the debugger. Calling AttachCurrentThread on an already-attached thread
gabomdq@6354
   521
     * is a no-op.
gabomdq@6354
   522
     * Note: You can call this function any number of times for the same thread, there's no harm in it
gabomdq@6354
   523
     */
gabomdq@6354
   524
gabomdq@6354
   525
    JNIEnv *env;
ewing@7501
   526
    int status = (*mJavaVM)->AttachCurrentThread(mJavaVM, &env, NULL);
gabomdq@6354
   527
    if(status < 0) {
gabomdq@6354
   528
        LOGE("failed to attach current thread");
gabomdq@6354
   529
        return 0;
gabomdq@6354
   530
    }
gabomdq@6354
   531
gabomdq@6354
   532
    /* From http://developer.android.com/guide/practices/jni.html
gabomdq@6354
   533
     * Threads attached through JNI must call DetachCurrentThread before they exit. If coding this directly is awkward,
gabomdq@6354
   534
     * in Android 2.0 (Eclair) and higher you can use pthread_key_create to define a destructor function that will be
gabomdq@6354
   535
     * called before the thread exits, and call DetachCurrentThread from there. (Use that key with pthread_setspecific
gabomdq@6354
   536
     * to store the JNIEnv in thread-local-storage; that way it'll be passed into your destructor as the argument.)
gabomdq@6354
   537
     * Note: The destructor is not called unless the stored value is != NULL
gabomdq@6354
   538
     * Note: You can call this function any number of times for the same thread, there's no harm in it
gabomdq@6354
   539
     *       (except for some lost CPU cycles)
gabomdq@6354
   540
     */
gabomdq@6354
   541
    pthread_setspecific(mThreadKey, (void*) env);
slouken@8055
   542
slouken@8055
   543
    return env;
slouken@8055
   544
}
slouken@8055
   545
slouken@8055
   546
int Android_JNI_SetupThread(void)
slouken@8055
   547
{
slouken@8055
   548
    Android_JNI_GetEnv();
gabomdq@6354
   549
    return 1;
gabomdq@6354
   550
}
gabomdq@6354
   551
gabomdq@7663
   552
/*
gabomdq@7663
   553
 * Audio support
gabomdq@7663
   554
 */
slouken@4996
   555
static jboolean audioBuffer16Bit = JNI_FALSE;
slouken@4996
   556
static jobject audioBuffer = NULL;
slouken@4996
   557
static void* audioBufferPinned = NULL;
slouken@4995
   558
ewing@7501
   559
int Android_JNI_OpenAudioDevice(int sampleRate, int is16Bit, int channelCount, int desiredBufferFrames)
slouken@4964
   560
{
philipp@9322
   561
    jboolean audioBufferStereo;
slouken@4996
   562
    int audioBufferFrames;
slouken@4964
   563
gabomdq@6354
   564
    JNIEnv *env = Android_JNI_GetEnv();
gabomdq@6354
   565
gabomdq@6354
   566
    if (!env) {
gabomdq@6354
   567
        LOGE("callback_handler: failed to attach current thread");
icculus@5996
   568
    }
gabomdq@6354
   569
    Android_JNI_SetupThread();
icculus@5996
   570
slouken@4996
   571
    __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "SDL audio: opening device");
slouken@4996
   572
    audioBuffer16Bit = is16Bit;
slouken@4996
   573
    audioBufferStereo = channelCount > 1;
slouken@4964
   574
gabomdq@7552
   575
    if ((*env)->CallStaticIntMethod(env, mActivityClass, midAudioInit, sampleRate, audioBuffer16Bit, audioBufferStereo, desiredBufferFrames) != 0) {
gabomdq@7552
   576
        /* Error during audio initialization */
gabomdq@7552
   577
        __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: error on AudioTrack initialization!");
gabomdq@7552
   578
        return 0;
gabomdq@7552
   579
    }
gabomdq@6802
   580
gabomdq@6802
   581
    /* Allocating the audio buffer from the Java side and passing it as the return value for audioInit no longer works on
gabomdq@6802
   582
     * Android >= 4.2 due to a "stale global reference" error. So now we allocate this buffer directly from this side. */
slouken@7191
   583
gabomdq@6802
   584
    if (is16Bit) {
ewing@7501
   585
        jshortArray audioBufferLocal = (*env)->NewShortArray(env, desiredBufferFrames * (audioBufferStereo ? 2 : 1));
gabomdq@6802
   586
        if (audioBufferLocal) {
ewing@7501
   587
            audioBuffer = (*env)->NewGlobalRef(env, audioBufferLocal);
ewing@7501
   588
            (*env)->DeleteLocalRef(env, audioBufferLocal);
gabomdq@6802
   589
        }
gabomdq@6802
   590
    }
gabomdq@6802
   591
    else {
ewing@7501
   592
        jbyteArray audioBufferLocal = (*env)->NewByteArray(env, desiredBufferFrames * (audioBufferStereo ? 2 : 1));
gabomdq@6802
   593
        if (audioBufferLocal) {
ewing@7501
   594
            audioBuffer = (*env)->NewGlobalRef(env, audioBufferLocal);
ewing@7501
   595
            (*env)->DeleteLocalRef(env, audioBufferLocal);
gabomdq@6802
   596
        }
gabomdq@6802
   597
    }
slouken@4995
   598
slouken@4996
   599
    if (audioBuffer == NULL) {
gabomdq@6802
   600
        __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: could not allocate an audio buffer!");
slouken@4996
   601
        return 0;
slouken@4996
   602
    }
slouken@4995
   603
slouken@4996
   604
    jboolean isCopy = JNI_FALSE;
slouken@4996
   605
    if (audioBuffer16Bit) {
ewing@7501
   606
        audioBufferPinned = (*env)->GetShortArrayElements(env, (jshortArray)audioBuffer, &isCopy);
ewing@7501
   607
        audioBufferFrames = (*env)->GetArrayLength(env, (jshortArray)audioBuffer);
slouken@4996
   608
    } else {
ewing@7501
   609
        audioBufferPinned = (*env)->GetByteArrayElements(env, (jbyteArray)audioBuffer, &isCopy);
ewing@7501
   610
        audioBufferFrames = (*env)->GetArrayLength(env, (jbyteArray)audioBuffer);
slouken@4996
   611
    }
slouken@4996
   612
    if (audioBufferStereo) {
slouken@4996
   613
        audioBufferFrames /= 2;
slouken@4996
   614
    }
gabomdq@6864
   615
slouken@4996
   616
    return audioBufferFrames;
slouken@4995
   617
}
slouken@4995
   618
philipp@9594
   619
void * Android_JNI_GetAudioBuffer(void)
slouken@4995
   620
{
slouken@4996
   621
    return audioBufferPinned;
slouken@4995
   622
}
slouken@4995
   623
philipp@9594
   624
void Android_JNI_WriteAudioBuffer(void)
slouken@4995
   625
{
gabomdq@6354
   626
    JNIEnv *mAudioEnv = Android_JNI_GetEnv();
gabomdq@6354
   627
slouken@4996
   628
    if (audioBuffer16Bit) {
ewing@7501
   629
        (*mAudioEnv)->ReleaseShortArrayElements(mAudioEnv, (jshortArray)audioBuffer, (jshort *)audioBufferPinned, JNI_COMMIT);
ewing@7501
   630
        (*mAudioEnv)->CallStaticVoidMethod(mAudioEnv, mActivityClass, midAudioWriteShortBuffer, (jshortArray)audioBuffer);
slouken@4996
   631
    } else {
ewing@7501
   632
        (*mAudioEnv)->ReleaseByteArrayElements(mAudioEnv, (jbyteArray)audioBuffer, (jbyte *)audioBufferPinned, JNI_COMMIT);
ewing@7501
   633
        (*mAudioEnv)->CallStaticVoidMethod(mAudioEnv, mActivityClass, midAudioWriteByteBuffer, (jbyteArray)audioBuffer);
slouken@4996
   634
    }
slouken@4995
   635
slouken@4996
   636
    /* JNI_COMMIT means the changes are committed to the VM but the buffer remains pinned */
slouken@4995
   637
}
slouken@4995
   638
philipp@9594
   639
void Android_JNI_CloseAudioDevice(void)
slouken@4995
   640
{
gabomdq@6354
   641
    JNIEnv *env = Android_JNI_GetEnv();
icculus@5996
   642
ewing@7501
   643
    (*env)->CallStaticVoidMethod(env, mActivityClass, midAudioQuit);
slouken@4964
   644
slouken@4997
   645
    if (audioBuffer) {
ewing@7501
   646
        (*env)->DeleteGlobalRef(env, audioBuffer);
slouken@4997
   647
        audioBuffer = NULL;
slouken@4997
   648
        audioBufferPinned = NULL;
slouken@4997
   649
    }
slouken@4964
   650
}
slouken@4981
   651
gabomdq@7663
   652
/* Test for an exception and call SDL_SetError with its detail if one occurs */
gabomdq@7663
   653
/* If the parameter silent is truthy then SDL_SetError() will not be called. */
philipp@9271
   654
static SDL_bool Android_JNI_ExceptionOccurred(SDL_bool silent)
tim@5650
   655
{
ewing@7501
   656
    SDL_assert(LocalReferenceHolder_IsActive());
gabomdq@6354
   657
    JNIEnv *mEnv = Android_JNI_GetEnv();
slouken@6284
   658
ewing@7501
   659
    jthrowable exception = (*mEnv)->ExceptionOccurred(mEnv);
tim@5650
   660
    if (exception != NULL) {
tim@5650
   661
        jmethodID mid;
tim@5650
   662
gabomdq@7663
   663
        /* Until this happens most JNI operations have undefined behaviour */
ewing@7501
   664
        (*mEnv)->ExceptionClear(mEnv);
tim@5650
   665
slouken@7045
   666
        if (!silent) {
ewing@7501
   667
            jclass exceptionClass = (*mEnv)->GetObjectClass(mEnv, exception);
ewing@7501
   668
            jclass classClass = (*mEnv)->FindClass(mEnv, "java/lang/Class");
tim@5650
   669
ewing@7501
   670
            mid = (*mEnv)->GetMethodID(mEnv, classClass, "getName", "()Ljava/lang/String;");
ewing@7501
   671
            jstring exceptionName = (jstring)(*mEnv)->CallObjectMethod(mEnv, exceptionClass, mid);
ewing@7501
   672
            const char* exceptionNameUTF8 = (*mEnv)->GetStringUTFChars(mEnv, exceptionName, 0);
tim@5650
   673
ewing@7501
   674
            mid = (*mEnv)->GetMethodID(mEnv, exceptionClass, "getMessage", "()Ljava/lang/String;");
ewing@7501
   675
            jstring exceptionMessage = (jstring)(*mEnv)->CallObjectMethod(mEnv, exception, mid);
tim@5650
   676
slouken@7045
   677
            if (exceptionMessage != NULL) {
ewing@7501
   678
                const char* exceptionMessageUTF8 = (*mEnv)->GetStringUTFChars(mEnv, exceptionMessage, 0);
slouken@7045
   679
                SDL_SetError("%s: %s", exceptionNameUTF8, exceptionMessageUTF8);
ewing@7501
   680
                (*mEnv)->ReleaseStringUTFChars(mEnv, exceptionMessage, exceptionMessageUTF8);
slouken@7045
   681
            } else {
slouken@7045
   682
                SDL_SetError("%s", exceptionNameUTF8);
slouken@7045
   683
            }
slouken@7045
   684
ewing@7501
   685
            (*mEnv)->ReleaseStringUTFChars(mEnv, exceptionName, exceptionNameUTF8);
tim@5650
   686
        }
tim@5650
   687
philipp@9271
   688
        return SDL_TRUE;
tim@5650
   689
    }
tim@5650
   690
philipp@9271
   691
    return SDL_FALSE;
tim@5650
   692
}
tim@5650
   693
ewing@7501
   694
static int Internal_Android_JNI_FileOpen(SDL_RWops* ctx)
icculus@5582
   695
{
ewing@7501
   696
    struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
ewing@7501
   697
tim@5650
   698
    int result = 0;
tim@5650
   699
tim@5650
   700
    jmethodID mid;
tim@5650
   701
    jobject context;
tim@5650
   702
    jobject assetManager;
tim@5650
   703
    jobject inputStream;
tim@5650
   704
    jclass channels;
tim@5650
   705
    jobject readableByteChannel;
tim@5650
   706
    jstring fileNameJString;
gabomdq@6806
   707
    jobject fd;
gabomdq@6806
   708
    jclass fdCls;
gabomdq@6806
   709
    jfieldID descriptor;
tim@5650
   710
gabomdq@6354
   711
    JNIEnv *mEnv = Android_JNI_GetEnv();
ewing@7501
   712
    if (!LocalReferenceHolder_Init(&refs, mEnv)) {
tim@5650
   713
        goto failure;
tim@5650
   714
    }
tim@5650
   715
gabomdq@6308
   716
    fileNameJString = (jstring)ctx->hidden.androidio.fileNameRef;
gabomdq@6806
   717
    ctx->hidden.androidio.position = 0;
icculus@5582
   718
gabomdq@7663
   719
    /* context = SDLActivity.getContext(); */
ewing@7501
   720
    mid = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
icculus@5582
   721
            "getContext","()Landroid/content/Context;");
ewing@7501
   722
    context = (*mEnv)->CallStaticObjectMethod(mEnv, mActivityClass, mid);
slouken@7191
   723
icculus@5582
   724
gabomdq@7663
   725
    /* assetManager = context.getAssets(); */
ewing@7501
   726
    mid = (*mEnv)->GetMethodID(mEnv, (*mEnv)->GetObjectClass(mEnv, context),
tim@5650
   727
            "getAssets", "()Landroid/content/res/AssetManager;");
ewing@7501
   728
    assetManager = (*mEnv)->CallObjectMethod(mEnv, context, mid);
icculus@5582
   729
gabomdq@6806
   730
    /* First let's try opening the file to obtain an AssetFileDescriptor.
gabomdq@6806
   731
    * This method reads the files directly from the APKs using standard *nix calls
gabomdq@6806
   732
    */
ewing@7501
   733
    mid = (*mEnv)->GetMethodID(mEnv, (*mEnv)->GetObjectClass(mEnv, assetManager), "openFd", "(Ljava/lang/String;)Landroid/content/res/AssetFileDescriptor;");
ewing@7501
   734
    inputStream = (*mEnv)->CallObjectMethod(mEnv, assetManager, mid, fileNameJString);
philipp@9271
   735
    if (Android_JNI_ExceptionOccurred(SDL_TRUE)) {
gabomdq@6806
   736
        goto fallback;
icculus@5582
   737
    }
icculus@5582
   738
ewing@7501
   739
    mid = (*mEnv)->GetMethodID(mEnv, (*mEnv)->GetObjectClass(mEnv, inputStream), "getStartOffset", "()J");
ewing@7501
   740
    ctx->hidden.androidio.offset = (*mEnv)->CallLongMethod(mEnv, inputStream, mid);
philipp@9271
   741
    if (Android_JNI_ExceptionOccurred(SDL_TRUE)) {
gabomdq@6806
   742
        goto fallback;
icculus@5582
   743
    }
icculus@5582
   744
ewing@7501
   745
    mid = (*mEnv)->GetMethodID(mEnv, (*mEnv)->GetObjectClass(mEnv, inputStream), "getDeclaredLength", "()J");
ewing@7501
   746
    ctx->hidden.androidio.size = (*mEnv)->CallLongMethod(mEnv, inputStream, mid);
philipp@9271
   747
    if (Android_JNI_ExceptionOccurred(SDL_TRUE)) {
gabomdq@6806
   748
        goto fallback;
icculus@5582
   749
    }
icculus@5582
   750
ewing@7501
   751
    mid = (*mEnv)->GetMethodID(mEnv, (*mEnv)->GetObjectClass(mEnv, inputStream), "getFileDescriptor", "()Ljava/io/FileDescriptor;");
ewing@7501
   752
    fd = (*mEnv)->CallObjectMethod(mEnv, inputStream, mid);
ewing@7501
   753
    fdCls = (*mEnv)->GetObjectClass(mEnv, fd);
ewing@7501
   754
    descriptor = (*mEnv)->GetFieldID(mEnv, fdCls, "descriptor", "I");
ewing@7501
   755
    ctx->hidden.androidio.fd = (*mEnv)->GetIntField(mEnv, fd, descriptor);
ewing@7501
   756
    ctx->hidden.androidio.assetFileDescriptorRef = (*mEnv)->NewGlobalRef(mEnv, inputStream);
tim@5650
   757
gabomdq@7663
   758
    /* Seek to the correct offset in the file. */
gabomdq@6816
   759
    lseek(ctx->hidden.androidio.fd, (off_t)ctx->hidden.androidio.offset, SEEK_SET);
gabomdq@6816
   760
philipp@9271
   761
    if (0) {
gabomdq@6806
   762
fallback:
gabomdq@7663
   763
        /* Disabled log message because of spam on the Nexus 7 */
gabomdq@7678
   764
        /* __android_log_print(ANDROID_LOG_DEBUG, "SDL", "Falling back to legacy InputStream method for opening file"); */
slouken@7190
   765
gabomdq@6806
   766
        /* Try the old method using InputStream */
gabomdq@6806
   767
        ctx->hidden.androidio.assetFileDescriptorRef = NULL;
icculus@5582
   768
gabomdq@7663
   769
        /* inputStream = assetManager.open(<filename>); */
ewing@7501
   770
        mid = (*mEnv)->GetMethodID(mEnv, (*mEnv)->GetObjectClass(mEnv, assetManager),
gabomdq@6806
   771
                "open", "(Ljava/lang/String;I)Ljava/io/InputStream;");
gabomdq@7678
   772
        inputStream = (*mEnv)->CallObjectMethod(mEnv, assetManager, mid, fileNameJString, 1 /* ACCESS_RANDOM */);
philipp@9271
   773
        if (Android_JNI_ExceptionOccurred(SDL_FALSE)) {
philipp@9869
   774
            /* Try fallback to APK expansion files */
alexey@8896
   775
            mid = (*mEnv)->GetMethodID(mEnv, (*mEnv)->GetObjectClass(mEnv, context),
philipp@9869
   776
                "openAPKExpansionInputStream", "(Ljava/lang/String;)Ljava/io/InputStream;");
philipp@9873
   777
            if (!mid) {
philipp@9873
   778
                SDL_SetError("No openAPKExpansionInputStream() in Java class");
philipp@9873
   779
                goto failure; /* Java class is missing the required method */
philipp@9873
   780
            }
alexey@8896
   781
            inputStream = (*mEnv)->CallObjectMethod(mEnv, context, mid, fileNameJString);
alexey@8896
   782
philipp@9870
   783
            /* Exception is checked first because it always needs to be cleared.
philipp@9870
   784
             * If no exception occurred then the last SDL error message is kept.
philipp@9870
   785
             */
philipp@9870
   786
            if (Android_JNI_ExceptionOccurred(SDL_FALSE) || !inputStream) {
alexey@8896
   787
                goto failure;
alexey@8896
   788
            }
gabomdq@6806
   789
        }
gabomdq@6806
   790
ewing@7501
   791
        ctx->hidden.androidio.inputStreamRef = (*mEnv)->NewGlobalRef(mEnv, inputStream);
gabomdq@6806
   792
gabomdq@7663
   793
        /* Despite all the visible documentation on [Asset]InputStream claiming
gabomdq@7663
   794
         * that the .available() method is not guaranteed to return the entire file
gabomdq@7663
   795
         * size, comments in <sdk>/samples/<ver>/ApiDemos/src/com/example/ ...
gabomdq@7663
   796
         * android/apis/content/ReadAsset.java imply that Android's
gabomdq@7663
   797
         * AssetInputStream.available() /will/ always return the total file size
gabomdq@7663
   798
        */
gabomdq@7663
   799
        
gabomdq@7663
   800
        /* size = inputStream.available(); */
ewing@7501
   801
        mid = (*mEnv)->GetMethodID(mEnv, (*mEnv)->GetObjectClass(mEnv, inputStream),
gabomdq@6806
   802
                "available", "()I");
ewing@7501
   803
        ctx->hidden.androidio.size = (long)(*mEnv)->CallIntMethod(mEnv, inputStream, mid);
philipp@9271
   804
        if (Android_JNI_ExceptionOccurred(SDL_FALSE)) {
gabomdq@6806
   805
            goto failure;
gabomdq@6806
   806
        }
gabomdq@6806
   807
gabomdq@7663
   808
        /* readableByteChannel = Channels.newChannel(inputStream); */
ewing@7501
   809
        channels = (*mEnv)->FindClass(mEnv, "java/nio/channels/Channels");
ewing@7501
   810
        mid = (*mEnv)->GetStaticMethodID(mEnv, channels,
gabomdq@6806
   811
                "newChannel",
gabomdq@6806
   812
                "(Ljava/io/InputStream;)Ljava/nio/channels/ReadableByteChannel;");
ewing@7501
   813
        readableByteChannel = (*mEnv)->CallStaticObjectMethod(
ewing@7501
   814
                mEnv, channels, mid, inputStream);
philipp@9271
   815
        if (Android_JNI_ExceptionOccurred(SDL_FALSE)) {
gabomdq@6806
   816
            goto failure;
gabomdq@6806
   817
        }
gabomdq@6806
   818
gabomdq@6806
   819
        ctx->hidden.androidio.readableByteChannelRef =
ewing@7501
   820
            (*mEnv)->NewGlobalRef(mEnv, readableByteChannel);
gabomdq@6806
   821
gabomdq@7663
   822
        /* Store .read id for reading purposes */
ewing@7501
   823
        mid = (*mEnv)->GetMethodID(mEnv, (*mEnv)->GetObjectClass(mEnv, readableByteChannel),
gabomdq@6806
   824
                "read", "(Ljava/nio/ByteBuffer;)I");
gabomdq@6806
   825
        ctx->hidden.androidio.readMethod = mid;
gabomdq@6806
   826
    }
icculus@5582
   827
philipp@9271
   828
    if (0) {
tim@5650
   829
failure:
tim@5650
   830
        result = -1;
tim@5650
   831
ewing@7501
   832
        (*mEnv)->DeleteGlobalRef(mEnv, (jobject)ctx->hidden.androidio.fileNameRef);
tim@5650
   833
tim@5650
   834
        if(ctx->hidden.androidio.inputStreamRef != NULL) {
ewing@7501
   835
            (*mEnv)->DeleteGlobalRef(mEnv, (jobject)ctx->hidden.androidio.inputStreamRef);
tim@5650
   836
        }
gabomdq@6308
   837
gabomdq@6308
   838
        if(ctx->hidden.androidio.readableByteChannelRef != NULL) {
ewing@7501
   839
            (*mEnv)->DeleteGlobalRef(mEnv, (jobject)ctx->hidden.androidio.readableByteChannelRef);
gabomdq@6308
   840
        }
gabomdq@6308
   841
gabomdq@6806
   842
        if(ctx->hidden.androidio.assetFileDescriptorRef != NULL) {
ewing@7501
   843
            (*mEnv)->DeleteGlobalRef(mEnv, (jobject)ctx->hidden.androidio.assetFileDescriptorRef);
gabomdq@6806
   844
        }
gabomdq@6806
   845
tim@5650
   846
    }
ewing@7501
   847
    
ewing@7501
   848
    LocalReferenceHolder_Cleanup(&refs);
tim@5650
   849
    return result;
icculus@5582
   850
}
icculus@5582
   851
ewing@7501
   852
int Android_JNI_FileOpen(SDL_RWops* ctx,
ewing@7501
   853
        const char* fileName, const char* mode)
icculus@5582
   854
{
ewing@7501
   855
    struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
gabomdq@6354
   856
    JNIEnv *mEnv = Android_JNI_GetEnv();
ewing@7501
   857
    int retval;
slouken@6284
   858
ewing@7501
   859
    if (!LocalReferenceHolder_Init(&refs, mEnv)) {
ewing@7501
   860
        LocalReferenceHolder_Cleanup(&refs);        
slouken@6284
   861
        return -1;
slouken@6284
   862
    }
slouken@6284
   863
icculus@5582
   864
    if (!ctx) {
ewing@7501
   865
        LocalReferenceHolder_Cleanup(&refs);
icculus@5582
   866
        return -1;
icculus@5582
   867
    }
icculus@5582
   868
ewing@7501
   869
    jstring fileNameJString = (*mEnv)->NewStringUTF(mEnv, fileName);
ewing@7501
   870
    ctx->hidden.androidio.fileNameRef = (*mEnv)->NewGlobalRef(mEnv, fileNameJString);
tim@5650
   871
    ctx->hidden.androidio.inputStreamRef = NULL;
gabomdq@6335
   872
    ctx->hidden.androidio.readableByteChannelRef = NULL;
gabomdq@6335
   873
    ctx->hidden.androidio.readMethod = NULL;
gabomdq@6806
   874
    ctx->hidden.androidio.assetFileDescriptorRef = NULL;
icculus@5582
   875
ewing@7501
   876
    retval = Internal_Android_JNI_FileOpen(ctx);
ewing@7501
   877
    LocalReferenceHolder_Cleanup(&refs);
ewing@7501
   878
    return retval;
icculus@5582
   879
}
icculus@5582
   880
ewing@7501
   881
size_t Android_JNI_FileRead(SDL_RWops* ctx, void* buffer,
icculus@5582
   882
        size_t size, size_t maxnum)
icculus@5582
   883
{
ewing@7501
   884
    struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
icculus@5582
   885
gabomdq@6806
   886
    if (ctx->hidden.androidio.assetFileDescriptorRef) {
gabomdq@6806
   887
        size_t bytesMax = size * maxnum;
gabomdq@7678
   888
        if (ctx->hidden.androidio.size != -1 /* UNKNOWN_LENGTH */ && ctx->hidden.androidio.position + bytesMax > ctx->hidden.androidio.size) {
gabomdq@6806
   889
            bytesMax = ctx->hidden.androidio.size - ctx->hidden.androidio.position;
gabomdq@6806
   890
        }
gabomdq@6806
   891
        size_t result = read(ctx->hidden.androidio.fd, buffer, bytesMax );
gabomdq@6806
   892
        if (result > 0) {
gabomdq@6806
   893
            ctx->hidden.androidio.position += result;
ewing@7501
   894
            LocalReferenceHolder_Cleanup(&refs);
gabomdq@6806
   895
            return result / size;
gabomdq@6806
   896
        }
ewing@7501
   897
        LocalReferenceHolder_Cleanup(&refs);
gabomdq@6806
   898
        return 0;
gabomdq@6806
   899
    } else {
gabomdq@6806
   900
        jlong bytesRemaining = (jlong) (size * maxnum);
gabomdq@6806
   901
        jlong bytesMax = (jlong) (ctx->hidden.androidio.size -  ctx->hidden.androidio.position);
gabomdq@6806
   902
        int bytesRead = 0;
gabomdq@6377
   903
gabomdq@6806
   904
        /* Don't read more bytes than those that remain in the file, otherwise we get an exception */
gabomdq@6806
   905
        if (bytesRemaining >  bytesMax) bytesRemaining = bytesMax;
slouken@6284
   906
gabomdq@6806
   907
        JNIEnv *mEnv = Android_JNI_GetEnv();
ewing@7501
   908
        if (!LocalReferenceHolder_Init(&refs, mEnv)) {
ewing@7501
   909
            LocalReferenceHolder_Cleanup(&refs);            
philipp@7368
   910
            return 0;
icculus@5582
   911
        }
icculus@5582
   912
gabomdq@6806
   913
        jobject readableByteChannel = (jobject)ctx->hidden.androidio.readableByteChannelRef;
gabomdq@6806
   914
        jmethodID readMethod = (jmethodID)ctx->hidden.androidio.readMethod;
ewing@7501
   915
        jobject byteBuffer = (*mEnv)->NewDirectByteBuffer(mEnv, buffer, bytesRemaining);
gabomdq@6806
   916
gabomdq@6806
   917
        while (bytesRemaining > 0) {
gabomdq@7663
   918
            /* result = readableByteChannel.read(...); */
ewing@7501
   919
            int result = (*mEnv)->CallIntMethod(mEnv, readableByteChannel, readMethod, byteBuffer);
gabomdq@6806
   920
philipp@9271
   921
            if (Android_JNI_ExceptionOccurred(SDL_FALSE)) {
ewing@7501
   922
                LocalReferenceHolder_Cleanup(&refs);            
gabomdq@6806
   923
                return 0;
gabomdq@6806
   924
            }
gabomdq@6806
   925
gabomdq@6806
   926
            if (result < 0) {
gabomdq@6806
   927
                break;
gabomdq@6806
   928
            }
gabomdq@6806
   929
gabomdq@6806
   930
            bytesRemaining -= result;
gabomdq@6806
   931
            bytesRead += result;
gabomdq@6806
   932
            ctx->hidden.androidio.position += result;
icculus@5582
   933
        }
ewing@7501
   934
        LocalReferenceHolder_Cleanup(&refs);                    
gabomdq@6806
   935
        return bytesRead / size;
slouken@7191
   936
    }
icculus@5582
   937
}
icculus@5582
   938
ewing@7501
   939
size_t Android_JNI_FileWrite(SDL_RWops* ctx, const void* buffer,
icculus@5582
   940
        size_t size, size_t num)
icculus@5582
   941
{
icculus@5582
   942
    SDL_SetError("Cannot write to Android package filesystem");
icculus@5582
   943
    return 0;
icculus@5582
   944
}
icculus@5582
   945
philipp@9271
   946
static int Internal_Android_JNI_FileClose(SDL_RWops* ctx, SDL_bool release)
icculus@5582
   947
{
ewing@7501
   948
    struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
ewing@7501
   949
icculus@5582
   950
    int result = 0;
gabomdq@6354
   951
    JNIEnv *mEnv = Android_JNI_GetEnv();
icculus@5582
   952
ewing@7501
   953
    if (!LocalReferenceHolder_Init(&refs, mEnv)) {
ewing@7501
   954
        LocalReferenceHolder_Cleanup(&refs);
icculus@7037
   955
        return SDL_SetError("Failed to allocate enough JVM local references");
slouken@6284
   956
    }
slouken@6284
   957
icculus@5582
   958
    if (ctx) {
icculus@5582
   959
        if (release) {
ewing@7501
   960
            (*mEnv)->DeleteGlobalRef(mEnv, (jobject)ctx->hidden.androidio.fileNameRef);
icculus@5582
   961
        }
icculus@5582
   962
gabomdq@6806
   963
        if (ctx->hidden.androidio.assetFileDescriptorRef) {
gabomdq@6806
   964
            jobject inputStream = (jobject)ctx->hidden.androidio.assetFileDescriptorRef;
ewing@7501
   965
            jmethodID mid = (*mEnv)->GetMethodID(mEnv, (*mEnv)->GetObjectClass(mEnv, inputStream),
gabomdq@6806
   966
                    "close", "()V");
ewing@7501
   967
            (*mEnv)->CallVoidMethod(mEnv, inputStream, mid);
ewing@7501
   968
            (*mEnv)->DeleteGlobalRef(mEnv, (jobject)ctx->hidden.androidio.assetFileDescriptorRef);
philipp@9271
   969
            if (Android_JNI_ExceptionOccurred(SDL_FALSE)) {
gabomdq@6806
   970
                result = -1;
gabomdq@6806
   971
            }
gabomdq@6806
   972
        }
gabomdq@6806
   973
        else {
gabomdq@6806
   974
            jobject inputStream = (jobject)ctx->hidden.androidio.inputStreamRef;
icculus@5582
   975
gabomdq@7677
   976
            /* inputStream.close(); */
ewing@7501
   977
            jmethodID mid = (*mEnv)->GetMethodID(mEnv, (*mEnv)->GetObjectClass(mEnv, inputStream),
gabomdq@6806
   978
                    "close", "()V");
ewing@7501
   979
            (*mEnv)->CallVoidMethod(mEnv, inputStream, mid);
ewing@7501
   980
            (*mEnv)->DeleteGlobalRef(mEnv, (jobject)ctx->hidden.androidio.inputStreamRef);
ewing@7501
   981
            (*mEnv)->DeleteGlobalRef(mEnv, (jobject)ctx->hidden.androidio.readableByteChannelRef);
philipp@9271
   982
            if (Android_JNI_ExceptionOccurred(SDL_FALSE)) {
gabomdq@6806
   983
                result = -1;
gabomdq@6806
   984
            }
icculus@5582
   985
        }
icculus@5582
   986
icculus@5582
   987
        if (release) {
icculus@5582
   988
            SDL_FreeRW(ctx);
icculus@5582
   989
        }
icculus@5582
   990
    }
icculus@5582
   991
ewing@7501
   992
    LocalReferenceHolder_Cleanup(&refs);
icculus@5582
   993
    return result;
icculus@5582
   994
}
icculus@5582
   995
icculus@5582
   996
ewing@7501
   997
Sint64 Android_JNI_FileSize(SDL_RWops* ctx)
icculus@5582
   998
{
slouken@6642
   999
    return ctx->hidden.androidio.size;
slouken@6642
  1000
}
slouken@6642
  1001
ewing@7501
  1002
Sint64 Android_JNI_FileSeek(SDL_RWops* ctx, Sint64 offset, int whence)
slouken@6642
  1003
{
gabomdq@6806
  1004
    if (ctx->hidden.androidio.assetFileDescriptorRef) {
gabomdq@6806
  1005
        switch (whence) {
gabomdq@6806
  1006
            case RW_SEEK_SET:
gabomdq@7678
  1007
                if (ctx->hidden.androidio.size != -1 /* UNKNOWN_LENGTH */ && offset > ctx->hidden.androidio.size) offset = ctx->hidden.androidio.size;
gabomdq@6806
  1008
                offset += ctx->hidden.androidio.offset;
gabomdq@6806
  1009
                break;
gabomdq@6806
  1010
            case RW_SEEK_CUR:
gabomdq@6806
  1011
                offset += ctx->hidden.androidio.position;
gabomdq@7678
  1012
                if (ctx->hidden.androidio.size != -1 /* UNKNOWN_LENGTH */ && offset > ctx->hidden.androidio.size) offset = ctx->hidden.androidio.size;
gabomdq@6806
  1013
                offset += ctx->hidden.androidio.offset;
gabomdq@6806
  1014
                break;
gabomdq@6806
  1015
            case RW_SEEK_END:
gabomdq@6806
  1016
                offset = ctx->hidden.androidio.offset + ctx->hidden.androidio.size + offset;
gabomdq@6806
  1017
                break;
gabomdq@6806
  1018
            default:
icculus@7037
  1019
                return SDL_SetError("Unknown value for 'whence'");
gabomdq@6806
  1020
        }
gabomdq@6806
  1021
        whence = SEEK_SET;
icculus@5582
  1022
gabomdq@6806
  1023
        off_t ret = lseek(ctx->hidden.androidio.fd, (off_t)offset, SEEK_SET);
gabomdq@6806
  1024
        if (ret == -1) return -1;
gabomdq@6806
  1025
        ctx->hidden.androidio.position = ret - ctx->hidden.androidio.offset;
gabomdq@6806
  1026
    } else {
gabomdq@6806
  1027
        Sint64 newPosition;
gabomdq@6806
  1028
gabomdq@6806
  1029
        switch (whence) {
gabomdq@6806
  1030
            case RW_SEEK_SET:
gabomdq@6806
  1031
                newPosition = offset;
gabomdq@6806
  1032
                break;
gabomdq@6806
  1033
            case RW_SEEK_CUR:
gabomdq@6806
  1034
                newPosition = ctx->hidden.androidio.position + offset;
gabomdq@6806
  1035
                break;
gabomdq@6806
  1036
            case RW_SEEK_END:
gabomdq@6806
  1037
                newPosition = ctx->hidden.androidio.size + offset;
gabomdq@6806
  1038
                break;
gabomdq@6806
  1039
            default:
icculus@7037
  1040
                return SDL_SetError("Unknown value for 'whence'");
gabomdq@6806
  1041
        }
gabomdq@6806
  1042
gabomdq@6806
  1043
        /* Validate the new position */
gabomdq@6806
  1044
        if (newPosition < 0) {
icculus@7037
  1045
            return SDL_Error(SDL_EFSEEK);
gabomdq@6806
  1046
        }
gabomdq@6806
  1047
        if (newPosition > ctx->hidden.androidio.size) {
gabomdq@6806
  1048
            newPosition = ctx->hidden.androidio.size;
gabomdq@6806
  1049
        }
slouken@6642
  1050
gabomdq@6806
  1051
        Sint64 movement = newPosition - ctx->hidden.androidio.position;
gabomdq@6806
  1052
        if (movement > 0) {
gabomdq@6806
  1053
            unsigned char buffer[4096];
icculus@5582
  1054
gabomdq@7663
  1055
            /* The easy case where we're seeking forwards */
gabomdq@6806
  1056
            while (movement > 0) {
gabomdq@6806
  1057
                Sint64 amount = sizeof (buffer);
gabomdq@6806
  1058
                if (amount > movement) {
gabomdq@6806
  1059
                    amount = movement;
gabomdq@6806
  1060
                }
gabomdq@6806
  1061
                size_t result = Android_JNI_FileRead(ctx, buffer, 1, amount);
gabomdq@6806
  1062
                if (result <= 0) {
gabomdq@7663
  1063
                    /* Failed to read/skip the required amount, so fail */
gabomdq@6806
  1064
                    return -1;
gabomdq@6806
  1065
                }
tim@5993
  1066
gabomdq@6806
  1067
                movement -= result;
icculus@5582
  1068
            }
tim@5993
  1069
gabomdq@6806
  1070
        } else if (movement < 0) {
gabomdq@7663
  1071
            /* We can't seek backwards so we have to reopen the file and seek */
gabomdq@7663
  1072
            /* forwards which obviously isn't very efficient */
philipp@9271
  1073
            Internal_Android_JNI_FileClose(ctx, SDL_FALSE);
ewing@7501
  1074
            Internal_Android_JNI_FileOpen(ctx);
gabomdq@6806
  1075
            Android_JNI_FileSeek(ctx, newPosition, RW_SEEK_SET);
icculus@5582
  1076
        }
icculus@5582
  1077
    }
icculus@5582
  1078
icculus@5582
  1079
    return ctx->hidden.androidio.position;
slouken@7191
  1080
icculus@5582
  1081
}
icculus@5582
  1082
ewing@7501
  1083
int Android_JNI_FileClose(SDL_RWops* ctx)
icculus@5582
  1084
{
philipp@9271
  1085
    return Internal_Android_JNI_FileClose(ctx, SDL_TRUE);
icculus@5582
  1086
}
icculus@5582
  1087
gabomdq@7663
  1088
/* returns a new global reference which needs to be released later */
slouken@6464
  1089
static jobject Android_JNI_GetSystemServiceObject(const char* name)
slouken@6464
  1090
{
ewing@7501
  1091
    struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
slouken@6464
  1092
    JNIEnv* env = Android_JNI_GetEnv();
ewing@7501
  1093
    jobject retval = NULL;
ewing@7501
  1094
ewing@7501
  1095
    if (!LocalReferenceHolder_Init(&refs, env)) {
ewing@7501
  1096
        LocalReferenceHolder_Cleanup(&refs);
slouken@6464
  1097
        return NULL;
slouken@6464
  1098
    }
slouken@6464
  1099
ewing@7501
  1100
    jstring service = (*env)->NewStringUTF(env, name);
slouken@6464
  1101
slouken@6464
  1102
    jmethodID mid;
slouken@6464
  1103
ewing@7501
  1104
    mid = (*env)->GetStaticMethodID(env, mActivityClass, "getContext", "()Landroid/content/Context;");
ewing@7501
  1105
    jobject context = (*env)->CallStaticObjectMethod(env, mActivityClass, mid);
slouken@6464
  1106
philipp@8029
  1107
    mid = (*env)->GetMethodID(env, mActivityClass, "getSystemServiceFromUiThread", "(Ljava/lang/String;)Ljava/lang/Object;");
ewing@7501
  1108
    jobject manager = (*env)->CallObjectMethod(env, context, mid, service);
slouken@6464
  1109
ewing@7501
  1110
    (*env)->DeleteLocalRef(env, service);
slouken@6464
  1111
ewing@7501
  1112
    retval = manager ? (*env)->NewGlobalRef(env, manager) : NULL;
ewing@7501
  1113
    LocalReferenceHolder_Cleanup(&refs);
ewing@7501
  1114
    return retval;
slouken@6464
  1115
}
slouken@6464
  1116
slouken@6464
  1117
#define SETUP_CLIPBOARD(error) \
ewing@7501
  1118
    struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__); \
slouken@6464
  1119
    JNIEnv* env = Android_JNI_GetEnv(); \
ewing@7501
  1120
    if (!LocalReferenceHolder_Init(&refs, env)) { \
ewing@7501
  1121
        LocalReferenceHolder_Cleanup(&refs); \
slouken@6464
  1122
        return error; \
slouken@6464
  1123
    } \
slouken@6464
  1124
    jobject clipboard = Android_JNI_GetSystemServiceObject("clipboard"); \
slouken@6464
  1125
    if (!clipboard) { \
ewing@7501
  1126
        LocalReferenceHolder_Cleanup(&refs); \
slouken@6464
  1127
        return error; \
slouken@6464
  1128
    }
slouken@6464
  1129
ewing@7501
  1130
#define CLEANUP_CLIPBOARD() \
ewing@7501
  1131
    LocalReferenceHolder_Cleanup(&refs);
ewing@7501
  1132
ewing@7501
  1133
int Android_JNI_SetClipboardText(const char* text)
slouken@6464
  1134
{
slouken@6464
  1135
    SETUP_CLIPBOARD(-1)
slouken@6464
  1136
ewing@7501
  1137
    jmethodID mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, clipboard), "setText", "(Ljava/lang/CharSequence;)V");
ewing@7501
  1138
    jstring string = (*env)->NewStringUTF(env, text);
ewing@7501
  1139
    (*env)->CallVoidMethod(env, clipboard, mid, string);
ewing@7501
  1140
    (*env)->DeleteGlobalRef(env, clipboard);
ewing@7501
  1141
    (*env)->DeleteLocalRef(env, string);
ewing@7501
  1142
ewing@7501
  1143
    CLEANUP_CLIPBOARD();
ewing@7501
  1144
slouken@6464
  1145
    return 0;
slouken@6464
  1146
}
slouken@6464
  1147
philipp@9594
  1148
char* Android_JNI_GetClipboardText(void)
slouken@6464
  1149
{
slouken@6464
  1150
    SETUP_CLIPBOARD(SDL_strdup(""))
slouken@6464
  1151
ewing@7501
  1152
    jmethodID mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, clipboard), "getText", "()Ljava/lang/CharSequence;");
ewing@7501
  1153
    jobject sequence = (*env)->CallObjectMethod(env, clipboard, mid);
ewing@7501
  1154
    (*env)->DeleteGlobalRef(env, clipboard);
slouken@6464
  1155
    if (sequence) {
ewing@7501
  1156
        mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, sequence), "toString", "()Ljava/lang/String;");
ewing@7501
  1157
        jstring string = (jstring)((*env)->CallObjectMethod(env, sequence, mid));
ewing@7501
  1158
        const char* utf = (*env)->GetStringUTFChars(env, string, 0);
slouken@6464
  1159
        if (utf) {
slouken@6464
  1160
            char* text = SDL_strdup(utf);
ewing@7501
  1161
            (*env)->ReleaseStringUTFChars(env, string, utf);
ewing@7501
  1162
ewing@7501
  1163
            CLEANUP_CLIPBOARD();
ewing@7501
  1164
slouken@6464
  1165
            return text;
slouken@6464
  1166
        }
slouken@6464
  1167
    }
ewing@7501
  1168
ewing@7501
  1169
    CLEANUP_CLIPBOARD();    
ewing@7501
  1170
slouken@6464
  1171
    return SDL_strdup("");
slouken@6464
  1172
}
slouken@6464
  1173
philipp@9594
  1174
SDL_bool Android_JNI_HasClipboardText(void)
slouken@6464
  1175
{
slouken@6464
  1176
    SETUP_CLIPBOARD(SDL_FALSE)
slouken@6464
  1177
ewing@7501
  1178
    jmethodID mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, clipboard), "hasText", "()Z");
ewing@7501
  1179
    jboolean has = (*env)->CallBooleanMethod(env, clipboard, mid);
ewing@7501
  1180
    (*env)->DeleteGlobalRef(env, clipboard);
ewing@7501
  1181
ewing@7501
  1182
    CLEANUP_CLIPBOARD();
ewing@7501
  1183
    
slouken@6464
  1184
    return has ? SDL_TRUE : SDL_FALSE;
slouken@6464
  1185
}
slouken@6464
  1186
slouken@6464
  1187
gabomdq@7663
  1188
/* returns 0 on success or -1 on error (others undefined then)
gabomdq@7663
  1189
 * returns truthy or falsy value in plugged, charged and battery
gabomdq@7663
  1190
 * returns the value in seconds and percent or -1 if not available
gabomdq@7663
  1191
 */
ewing@7501
  1192
int Android_JNI_GetPowerInfo(int* plugged, int* charged, int* battery, int* seconds, int* percent)
slouken@6448
  1193
{
ewing@7501
  1194
    struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
slouken@6448
  1195
    JNIEnv* env = Android_JNI_GetEnv();
ewing@7501
  1196
    if (!LocalReferenceHolder_Init(&refs, env)) {
ewing@7501
  1197
        LocalReferenceHolder_Cleanup(&refs);
slouken@6448
  1198
        return -1;
slouken@6448
  1199
    }
slouken@6448
  1200
slouken@6448
  1201
    jmethodID mid;
slouken@6448
  1202
ewing@7501
  1203
    mid = (*env)->GetStaticMethodID(env, mActivityClass, "getContext", "()Landroid/content/Context;");
ewing@7501
  1204
    jobject context = (*env)->CallStaticObjectMethod(env, mActivityClass, mid);
slouken@6448
  1205
ewing@7501
  1206
    jstring action = (*env)->NewStringUTF(env, "android.intent.action.BATTERY_CHANGED");
slouken@6448
  1207
ewing@7501
  1208
    jclass cls = (*env)->FindClass(env, "android/content/IntentFilter");
slouken@6448
  1209
ewing@7501
  1210
    mid = (*env)->GetMethodID(env, cls, "<init>", "(Ljava/lang/String;)V");
ewing@7501
  1211
    jobject filter = (*env)->NewObject(env, cls, mid, action);
slouken@6448
  1212
ewing@7501
  1213
    (*env)->DeleteLocalRef(env, action);
slouken@6448
  1214
ewing@7501
  1215
    mid = (*env)->GetMethodID(env, mActivityClass, "registerReceiver", "(Landroid/content/BroadcastReceiver;Landroid/content/IntentFilter;)Landroid/content/Intent;");
ewing@7501
  1216
    jobject intent = (*env)->CallObjectMethod(env, context, mid, NULL, filter);
slouken@6448
  1217
ewing@7501
  1218
    (*env)->DeleteLocalRef(env, filter);
slouken@6448
  1219
ewing@7501
  1220
    cls = (*env)->GetObjectClass(env, intent);
slouken@6448
  1221
slouken@6448
  1222
    jstring iname;
ewing@7501
  1223
    jmethodID imid = (*env)->GetMethodID(env, cls, "getIntExtra", "(Ljava/lang/String;I)I");
slouken@6448
  1224
slouken@6448
  1225
#define GET_INT_EXTRA(var, key) \
ewing@7501
  1226
    iname = (*env)->NewStringUTF(env, key); \
ewing@7501
  1227
    int var = (*env)->CallIntMethod(env, intent, imid, iname, -1); \
ewing@7501
  1228
    (*env)->DeleteLocalRef(env, iname);
slouken@6448
  1229
slouken@6448
  1230
    jstring bname;
ewing@7501
  1231
    jmethodID bmid = (*env)->GetMethodID(env, cls, "getBooleanExtra", "(Ljava/lang/String;Z)Z");
slouken@6448
  1232
slouken@6448
  1233
#define GET_BOOL_EXTRA(var, key) \
ewing@7501
  1234
    bname = (*env)->NewStringUTF(env, key); \
ewing@7501
  1235
    int var = (*env)->CallBooleanMethod(env, intent, bmid, bname, JNI_FALSE); \
ewing@7501
  1236
    (*env)->DeleteLocalRef(env, bname);
slouken@6448
  1237
slouken@6448
  1238
    if (plugged) {
gabomdq@7663
  1239
        GET_INT_EXTRA(plug, "plugged") /* == BatteryManager.EXTRA_PLUGGED (API 5) */
slouken@6448
  1240
        if (plug == -1) {
ewing@7501
  1241
            LocalReferenceHolder_Cleanup(&refs);
slouken@6448
  1242
            return -1;
slouken@6448
  1243
        }
gabomdq@7663
  1244
        /* 1 == BatteryManager.BATTERY_PLUGGED_AC */
gabomdq@7663
  1245
        /* 2 == BatteryManager.BATTERY_PLUGGED_USB */
slouken@6448
  1246
        *plugged = (0 < plug) ? 1 : 0;
slouken@6448
  1247
    }
slouken@6448
  1248
slouken@6448
  1249
    if (charged) {
gabomdq@7663
  1250
        GET_INT_EXTRA(status, "status") /* == BatteryManager.EXTRA_STATUS (API 5) */
slouken@6448
  1251
        if (status == -1) {
ewing@7501
  1252
            LocalReferenceHolder_Cleanup(&refs);
slouken@6448
  1253
            return -1;
slouken@6448
  1254
        }
gabomdq@7663
  1255
        /* 5 == BatteryManager.BATTERY_STATUS_FULL */
slouken@6448
  1256
        *charged = (status == 5) ? 1 : 0;
slouken@6448
  1257
    }
slouken@6448
  1258
slouken@6448
  1259
    if (battery) {
gabomdq@7663
  1260
        GET_BOOL_EXTRA(present, "present") /* == BatteryManager.EXTRA_PRESENT (API 5) */
slouken@6448
  1261
        *battery = present ? 1 : 0;
slouken@6448
  1262
    }
slouken@6448
  1263
slouken@6448
  1264
    if (seconds) {
gabomdq@7663
  1265
        *seconds = -1; /* not possible */
slouken@6448
  1266
    }
slouken@6448
  1267
slouken@6448
  1268
    if (percent) {
gabomdq@7663
  1269
        GET_INT_EXTRA(level, "level") /* == BatteryManager.EXTRA_LEVEL (API 5) */
gabomdq@7663
  1270
        GET_INT_EXTRA(scale, "scale") /* == BatteryManager.EXTRA_SCALE (API 5) */
slouken@6448
  1271
        if ((level == -1) || (scale == -1)) {
ewing@7501
  1272
            LocalReferenceHolder_Cleanup(&refs);
slouken@6448
  1273
            return -1;
slouken@6448
  1274
        }
slouken@6448
  1275
        *percent = level * 100 / scale;
slouken@6448
  1276
    }
slouken@6448
  1277
ewing@7501
  1278
    (*env)->DeleteLocalRef(env, intent);
slouken@6448
  1279
ewing@7501
  1280
    LocalReferenceHolder_Cleanup(&refs);
slouken@6448
  1281
    return 0;
slouken@6448
  1282
}
slouken@6448
  1283
philipp@7786
  1284
/* returns number of found touch devices as return value and ids in parameter ids */
philipp@7786
  1285
int Android_JNI_GetTouchDeviceIds(int **ids) {
philipp@7786
  1286
    JNIEnv *env = Android_JNI_GetEnv();
philipp@7786
  1287
    jint sources = 4098; /* == InputDevice.SOURCE_TOUCHSCREEN */
philipp@7786
  1288
    jmethodID mid = (*env)->GetStaticMethodID(env, mActivityClass, "inputGetInputDeviceIds", "(I)[I");
philipp@7786
  1289
    jintArray array = (jintArray) (*env)->CallStaticObjectMethod(env, mActivityClass, mid, sources);
philipp@7786
  1290
    int number = 0;
philipp@7786
  1291
    *ids = NULL;
philipp@7786
  1292
    if (array) {
philipp@7786
  1293
        number = (int) (*env)->GetArrayLength(env, array);
philipp@7786
  1294
        if (0 < number) {
philipp@7786
  1295
            jint* elements = (*env)->GetIntArrayElements(env, array, NULL);
philipp@7786
  1296
            if (elements) {
philipp@7786
  1297
                int i;
slouken@7863
  1298
                *ids = SDL_malloc(number * sizeof (**ids));
philipp@7786
  1299
                for (i = 0; i < number; ++i) { /* not assuming sizeof (jint) == sizeof (int) */
slouken@7863
  1300
                    (*ids)[i] = elements[i];
philipp@7786
  1301
                }
philipp@7786
  1302
                (*env)->ReleaseIntArrayElements(env, array, elements, JNI_ABORT);
philipp@7786
  1303
            }
philipp@7786
  1304
        }
philipp@7786
  1305
        (*env)->DeleteLocalRef(env, array);
philipp@7786
  1306
    }
philipp@7786
  1307
    return number;
philipp@7786
  1308
}
philipp@7786
  1309
philipp@9594
  1310
void Android_JNI_PollInputDevices(void)
gabomdq@7907
  1311
{
gabomdq@8057
  1312
    JNIEnv *env = Android_JNI_GetEnv();
gabomdq@8057
  1313
    (*env)->CallStaticVoidMethod(env, mActivityClass, midPollInputDevices);    
gabomdq@7907
  1314
}
gabomdq@7907
  1315
philipp@9174
  1316
/* See SDLActivity.java for constants. */
philipp@9174
  1317
#define COMMAND_SET_KEEP_SCREEN_ON    5
philipp@9174
  1318
gabomdq@7663
  1319
/* sends message to be handled on the UI event dispatch thread */
ewing@7501
  1320
int Android_JNI_SendMessage(int command, int param)
slouken@6392
  1321
{
slouken@6392
  1322
    JNIEnv *env = Android_JNI_GetEnv();
slouken@6392
  1323
    if (!env) {
slouken@6392
  1324
        return -1;
slouken@6392
  1325
    }
ewing@7501
  1326
    jmethodID mid = (*env)->GetStaticMethodID(env, mActivityClass, "sendMessage", "(II)Z");
slouken@6392
  1327
    if (!mid) {
slouken@6392
  1328
        return -1;
slouken@6392
  1329
    }
ewing@7501
  1330
    jboolean success = (*env)->CallStaticBooleanMethod(env, mActivityClass, mid, command, param);
philipp@7149
  1331
    return success ? 0 : -1;
slouken@6392
  1332
}
slouken@6392
  1333
philipp@9174
  1334
void Android_JNI_SuspendScreenSaver(SDL_bool suspend)
philipp@9174
  1335
{
philipp@9174
  1336
    Android_JNI_SendMessage(COMMAND_SET_KEEP_SCREEN_ON, (suspend == SDL_FALSE) ? 0 : 1);
philipp@9174
  1337
}
philipp@9174
  1338
ewing@7501
  1339
void Android_JNI_ShowTextInput(SDL_Rect *inputRect)
slouken@6555
  1340
{
slouken@6555
  1341
    JNIEnv *env = Android_JNI_GetEnv();
slouken@6555
  1342
    if (!env) {
slouken@6654
  1343
        return;
slouken@6555
  1344
    }
slouken@6555
  1345
ewing@7501
  1346
    jmethodID mid = (*env)->GetStaticMethodID(env, mActivityClass, "showTextInput", "(IIII)Z");
slouken@6555
  1347
    if (!mid) {
slouken@6654
  1348
        return;
slouken@6555
  1349
    }
ewing@7501
  1350
    (*env)->CallStaticBooleanMethod(env, mActivityClass, mid,
slouken@6555
  1351
                               inputRect->x,
slouken@6555
  1352
                               inputRect->y,
slouken@6555
  1353
                               inputRect->w,
slouken@6555
  1354
                               inputRect->h );
slouken@6555
  1355
}
slouken@6555
  1356
philipp@9594
  1357
void Android_JNI_HideTextInput(void)
slouken@6555
  1358
{
gabomdq@7663
  1359
    /* has to match Activity constant */
slouken@6654
  1360
    const int COMMAND_TEXTEDIT_HIDE = 3;
slouken@6654
  1361
    Android_JNI_SendMessage(COMMAND_TEXTEDIT_HIDE, 0);
slouken@6654
  1362
}
slouken@6555
  1363
slouken@9135
  1364
int Android_JNI_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
slouken@9135
  1365
{
slouken@9135
  1366
    JNIEnv *env;
philipp@9231
  1367
    jclass clazz;
slouken@9135
  1368
    jmethodID mid;
slouken@9135
  1369
    jobject context;
slouken@9135
  1370
    jstring title;
slouken@9135
  1371
    jstring message;
slouken@9135
  1372
    jintArray button_flags;
slouken@9135
  1373
    jintArray button_ids;
slouken@9135
  1374
    jobjectArray button_texts;
slouken@9135
  1375
    jintArray colors;
philipp@9231
  1376
    jobject text;
slouken@9135
  1377
    jint temp;
slouken@9135
  1378
    int i;
slouken@9135
  1379
slouken@9135
  1380
    env = Android_JNI_GetEnv();
slouken@9135
  1381
slouken@9135
  1382
    /* convert parameters */
slouken@9135
  1383
philipp@9231
  1384
    clazz = (*env)->FindClass(env, "java/lang/String");
philipp@9231
  1385
slouken@9135
  1386
    title = (*env)->NewStringUTF(env, messageboxdata->title);
slouken@9135
  1387
    message = (*env)->NewStringUTF(env, messageboxdata->message);
slouken@9135
  1388
slouken@9135
  1389
    button_flags = (*env)->NewIntArray(env, messageboxdata->numbuttons);
slouken@9135
  1390
    button_ids = (*env)->NewIntArray(env, messageboxdata->numbuttons);
slouken@9135
  1391
    button_texts = (*env)->NewObjectArray(env, messageboxdata->numbuttons,
philipp@9231
  1392
        clazz, NULL);
slouken@9135
  1393
    for (i = 0; i < messageboxdata->numbuttons; ++i) {
slouken@9135
  1394
        temp = messageboxdata->buttons[i].flags;
slouken@9135
  1395
        (*env)->SetIntArrayRegion(env, button_flags, i, 1, &temp);
slouken@9135
  1396
        temp = messageboxdata->buttons[i].buttonid;
slouken@9135
  1397
        (*env)->SetIntArrayRegion(env, button_ids, i, 1, &temp);
philipp@9231
  1398
        text = (*env)->NewStringUTF(env, messageboxdata->buttons[i].text);
philipp@9231
  1399
        (*env)->SetObjectArrayElement(env, button_texts, i, text);
philipp@9231
  1400
        (*env)->DeleteLocalRef(env, text);
slouken@9135
  1401
    }
slouken@9135
  1402
slouken@9135
  1403
    if (messageboxdata->colorScheme) {
slouken@9135
  1404
        colors = (*env)->NewIntArray(env, SDL_MESSAGEBOX_COLOR_MAX);
slouken@9135
  1405
        for (i = 0; i < SDL_MESSAGEBOX_COLOR_MAX; ++i) {
slouken@9135
  1406
            temp = (0xFF << 24) |
slouken@9135
  1407
                   (messageboxdata->colorScheme->colors[i].r << 16) |
slouken@9135
  1408
                   (messageboxdata->colorScheme->colors[i].g << 8) |
slouken@9135
  1409
                   (messageboxdata->colorScheme->colors[i].b << 0);
slouken@9135
  1410
            (*env)->SetIntArrayRegion(env, colors, i, 1, &temp);
slouken@9135
  1411
        }
slouken@9135
  1412
    } else {
slouken@9135
  1413
        colors = NULL;
slouken@9135
  1414
    }
slouken@9135
  1415
philipp@9231
  1416
    (*env)->DeleteLocalRef(env, clazz);
philipp@9231
  1417
slouken@9135
  1418
    /* call function */
slouken@9135
  1419
slouken@9135
  1420
    mid = (*env)->GetStaticMethodID(env, mActivityClass, "getContext","()Landroid/content/Context;");
slouken@9135
  1421
slouken@9135
  1422
    context = (*env)->CallStaticObjectMethod(env, mActivityClass, mid);
slouken@9135
  1423
philipp@9231
  1424
    clazz = (*env)->GetObjectClass(env, context);
philipp@9231
  1425
philipp@9231
  1426
    mid = (*env)->GetMethodID(env, clazz,
slouken@9135
  1427
        "messageboxShowMessageBox", "(ILjava/lang/String;Ljava/lang/String;[I[I[Ljava/lang/String;[I)I");
slouken@9135
  1428
    *buttonid = (*env)->CallIntMethod(env, context, mid,
slouken@9135
  1429
        messageboxdata->flags,
slouken@9135
  1430
        title,
slouken@9135
  1431
        message,
slouken@9135
  1432
        button_flags,
slouken@9135
  1433
        button_ids,
slouken@9135
  1434
        button_texts,
slouken@9135
  1435
        colors);
slouken@9135
  1436
philipp@9231
  1437
    (*env)->DeleteLocalRef(env, context);
philipp@9231
  1438
    (*env)->DeleteLocalRef(env, clazz);
philipp@9231
  1439
slouken@9135
  1440
    /* delete parameters */
slouken@9135
  1441
slouken@9135
  1442
    (*env)->DeleteLocalRef(env, title);
slouken@9135
  1443
    (*env)->DeleteLocalRef(env, message);
slouken@9135
  1444
    (*env)->DeleteLocalRef(env, button_flags);
slouken@9135
  1445
    (*env)->DeleteLocalRef(env, button_ids);
slouken@9135
  1446
    (*env)->DeleteLocalRef(env, button_texts);
slouken@9135
  1447
    (*env)->DeleteLocalRef(env, colors);
slouken@9135
  1448
slouken@9135
  1449
    return 0;
slouken@9135
  1450
}
slouken@9135
  1451
gabomdq@7663
  1452
/*
slouken@6630
  1453
//////////////////////////////////////////////////////////////////////////////
slouken@6630
  1454
//
slouken@6630
  1455
// Functions exposed to SDL applications in SDL_system.h
gabomdq@7663
  1456
//////////////////////////////////////////////////////////////////////////////
gabomdq@7663
  1457
*/
slouken@6630
  1458
ewing@7501
  1459
void *SDL_AndroidGetJNIEnv()
slouken@6630
  1460
{
slouken@6630
  1461
    return Android_JNI_GetEnv();
slouken@6630
  1462
}
slouken@6630
  1463
gabomdq@7095
  1464
gabomdq@7083
  1465
ewing@7501
  1466
void *SDL_AndroidGetActivity()
slouken@6630
  1467
{
gabomdq@7095
  1468
    /* See SDL_system.h for caveats on using this function. */
slouken@7191
  1469
slouken@6630
  1470
    jmethodID mid;
slouken@6630
  1471
slouken@6630
  1472
    JNIEnv *env = Android_JNI_GetEnv();
gabomdq@7083
  1473
    if (!env) {
slouken@6630
  1474
        return NULL;
slouken@6630
  1475
    }
slouken@6630
  1476
gabomdq@7663
  1477
    /* return SDLActivity.getContext(); */
ewing@7501
  1478
    mid = (*env)->GetStaticMethodID(env, mActivityClass,
slouken@6630
  1479
            "getContext","()Landroid/content/Context;");
ewing@7501
  1480
    return (*env)->CallStaticObjectMethod(env, mActivityClass, mid);
slouken@6630
  1481
}
slouken@6630
  1482
ewing@7501
  1483
const char * SDL_AndroidGetInternalStoragePath()
slouken@6630
  1484
{
slouken@6630
  1485
    static char *s_AndroidInternalFilesPath = NULL;
slouken@6630
  1486
slouken@6630
  1487
    if (!s_AndroidInternalFilesPath) {
ewing@7501
  1488
        struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
slouken@6630
  1489
        jmethodID mid;
slouken@6630
  1490
        jobject context;
slouken@6630
  1491
        jobject fileObject;
slouken@6630
  1492
        jstring pathString;
slouken@6630
  1493
        const char *path;
slouken@6630
  1494
slouken@6630
  1495
        JNIEnv *env = Android_JNI_GetEnv();
ewing@7501
  1496
        if (!LocalReferenceHolder_Init(&refs, env)) {
ewing@7501
  1497
            LocalReferenceHolder_Cleanup(&refs);
slouken@6630
  1498
            return NULL;
slouken@6630
  1499
        }
slouken@6630
  1500
gabomdq@7663
  1501
        /* context = SDLActivity.getContext(); */
ewing@7501
  1502
        mid = (*env)->GetStaticMethodID(env, mActivityClass,
slouken@6630
  1503
                "getContext","()Landroid/content/Context;");
ewing@7501
  1504
        context = (*env)->CallStaticObjectMethod(env, mActivityClass, mid);
slouken@6630
  1505
gabomdq@7663
  1506
        /* fileObj = context.getFilesDir(); */
ewing@7501
  1507
        mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, context),
slouken@6630
  1508
                "getFilesDir", "()Ljava/io/File;");
ewing@7501
  1509
        fileObject = (*env)->CallObjectMethod(env, context, mid);
slouken@6630
  1510
        if (!fileObject) {
slouken@6630
  1511
            SDL_SetError("Couldn't get internal directory");
ewing@7501
  1512
            LocalReferenceHolder_Cleanup(&refs);
slouken@6630
  1513
            return NULL;
slouken@6630
  1514
        }
slouken@6630
  1515
gabomdq@7663
  1516
        /* path = fileObject.getAbsolutePath(); */
ewing@7501
  1517
        mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, fileObject),
slouken@6630
  1518
                "getAbsolutePath", "()Ljava/lang/String;");
ewing@7501
  1519
        pathString = (jstring)(*env)->CallObjectMethod(env, fileObject, mid);
slouken@6630
  1520
ewing@7501
  1521
        path = (*env)->GetStringUTFChars(env, pathString, NULL);
slouken@6630
  1522
        s_AndroidInternalFilesPath = SDL_strdup(path);
ewing@7501
  1523
        (*env)->ReleaseStringUTFChars(env, pathString, path);
ewing@7501
  1524
ewing@7501
  1525
        LocalReferenceHolder_Cleanup(&refs);
slouken@6630
  1526
    }
slouken@6630
  1527
    return s_AndroidInternalFilesPath;
slouken@6630
  1528
}
slouken@6630
  1529
ewing@7501
  1530
int SDL_AndroidGetExternalStorageState()
slouken@6630
  1531
{
ewing@7501
  1532
    struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
slouken@6630
  1533
    jmethodID mid;
slouken@6630
  1534
    jclass cls;
slouken@6630
  1535
    jstring stateString;
slouken@6630
  1536
    const char *state;
slouken@6630
  1537
    int stateFlags;
slouken@6630
  1538
slouken@6630
  1539
    JNIEnv *env = Android_JNI_GetEnv();
ewing@7501
  1540
    if (!LocalReferenceHolder_Init(&refs, env)) {
ewing@7501
  1541
        LocalReferenceHolder_Cleanup(&refs);
slouken@6630
  1542
        return 0;
slouken@6630
  1543
    }
slouken@6630
  1544
ewing@7501
  1545
    cls = (*env)->FindClass(env, "android/os/Environment");
ewing@7501
  1546
    mid = (*env)->GetStaticMethodID(env, cls,
slouken@6630
  1547
            "getExternalStorageState", "()Ljava/lang/String;");
ewing@7501
  1548
    stateString = (jstring)(*env)->CallStaticObjectMethod(env, cls, mid);
slouken@6630
  1549
ewing@7501
  1550
    state = (*env)->GetStringUTFChars(env, stateString, NULL);
slouken@6630
  1551
gabomdq@7663
  1552
    /* Print an info message so people debugging know the storage state */
slouken@6630
  1553
    __android_log_print(ANDROID_LOG_INFO, "SDL", "external storage state: %s", state);
slouken@6630
  1554
slouken@6630
  1555
    if (SDL_strcmp(state, "mounted") == 0) {
slouken@6630
  1556
        stateFlags = SDL_ANDROID_EXTERNAL_STORAGE_READ |
slouken@6630
  1557
                     SDL_ANDROID_EXTERNAL_STORAGE_WRITE;
slouken@6630
  1558
    } else if (SDL_strcmp(state, "mounted_ro") == 0) {
slouken@6630
  1559
        stateFlags = SDL_ANDROID_EXTERNAL_STORAGE_READ;
slouken@6630
  1560
    } else {
slouken@6630
  1561
        stateFlags = 0;
slouken@6630
  1562
    }
ewing@7501
  1563
    (*env)->ReleaseStringUTFChars(env, stateString, state);
slouken@6630
  1564
ewing@7501
  1565
    LocalReferenceHolder_Cleanup(&refs);
slouken@6630
  1566
    return stateFlags;
slouken@6630
  1567
}
slouken@6630
  1568
ewing@7501
  1569
const char * SDL_AndroidGetExternalStoragePath()
slouken@6630
  1570
{
slouken@6630
  1571
    static char *s_AndroidExternalFilesPath = NULL;
slouken@6630
  1572
slouken@6630
  1573
    if (!s_AndroidExternalFilesPath) {
ewing@7501
  1574
        struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
slouken@6630
  1575
        jmethodID mid;
slouken@6630
  1576
        jobject context;
slouken@6630
  1577
        jobject fileObject;
slouken@6630
  1578
        jstring pathString;
slouken@6630
  1579
        const char *path;
slouken@6630
  1580
slouken@6630
  1581
        JNIEnv *env = Android_JNI_GetEnv();
ewing@7501
  1582
        if (!LocalReferenceHolder_Init(&refs, env)) {
ewing@7501
  1583
            LocalReferenceHolder_Cleanup(&refs);
slouken@6630
  1584
            return NULL;
slouken@6630
  1585
        }
slouken@6630
  1586
gabomdq@7663
  1587
        /* context = SDLActivity.getContext(); */
ewing@7501
  1588
        mid = (*env)->GetStaticMethodID(env, mActivityClass,
slouken@6630
  1589
                "getContext","()Landroid/content/Context;");
ewing@7501
  1590
        context = (*env)->CallStaticObjectMethod(env, mActivityClass, mid);
slouken@6630
  1591
gabomdq@7663
  1592
        /* fileObj = context.getExternalFilesDir(); */
ewing@7501
  1593
        mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, context),
slouken@6630
  1594
                "getExternalFilesDir", "(Ljava/lang/String;)Ljava/io/File;");
ewing@7501
  1595
        fileObject = (*env)->CallObjectMethod(env, context, mid, NULL);
slouken@6630
  1596
        if (!fileObject) {
slouken@6630
  1597
            SDL_SetError("Couldn't get external directory");
ewing@7501
  1598
            LocalReferenceHolder_Cleanup(&refs);
slouken@6630
  1599
            return NULL;
slouken@6630
  1600
        }
slouken@6630
  1601
gabomdq@7663
  1602
        /* path = fileObject.getAbsolutePath(); */
ewing@7501
  1603
        mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, fileObject),
slouken@6630
  1604
                "getAbsolutePath", "()Ljava/lang/String;");
ewing@7501
  1605
        pathString = (jstring)(*env)->CallObjectMethod(env, fileObject, mid);
slouken@6630
  1606
ewing@7501
  1607
        path = (*env)->GetStringUTFChars(env, pathString, NULL);
slouken@6630
  1608
        s_AndroidExternalFilesPath = SDL_strdup(path);
ewing@7501
  1609
        (*env)->ReleaseStringUTFChars(env, pathString, path);
ewing@7501
  1610
ewing@7501
  1611
        LocalReferenceHolder_Cleanup(&refs);
slouken@6630
  1612
    }
slouken@6630
  1613
    return s_AndroidExternalFilesPath;
slouken@6630
  1614
}
slouken@6630
  1615
icculus@9450
  1616
jclass Android_JNI_GetActivityClass(void)
icculus@9450
  1617
{
icculus@9450
  1618
    return mActivityClass;
icculus@9450
  1619
}
icculus@9450
  1620
slouken@6044
  1621
#endif /* __ANDROID__ */
slouken@6044
  1622
slouken@4981
  1623
/* vi: set ts=4 sw=4 expandtab: */
gabomdq@7612
  1624