slouken@4964
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/*
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slouken@5535
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Simple DirectMedia Layer
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slouken@6138
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Copyright (C) 1997-2012 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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slouken@4964
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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_config.h"
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#include "SDL_stdinc.h"
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#include "SDL_assert.h"
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#ifdef __ANDROID__
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#include "SDL_android.h"
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extern "C" {
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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_androidtouch.h"
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#include "../../video/android/SDL_androidvideo.h"
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#include <android/log.h>
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#include <pthread.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 (false)
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#define LOGE(...) do {} while (false)
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/* Implemented in audio/android/SDL_androidaudio.c */
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extern void Android_RunAudioThread();
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} // C
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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 midCreateGLContext;
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static jmethodID midFlipBuffers;
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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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// Accelerometer data storage
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static float fLastAccelerometer[3];
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static 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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extern "C" jint 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((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)) {
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__android_log_print(ANDROID_LOG_ERROR, "SDL", "Error initializing pthread key");
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}
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else {
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Android_JNI_SetupThread();
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}
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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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extern "C" void 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(cls);
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midCreateGLContext = mEnv->GetStaticMethodID(mActivityClass,
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"createGLContext","(II)Z");
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midFlipBuffers = mEnv->GetStaticMethodID(mActivityClass,
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"flipBuffers","()V");
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midAudioInit = mEnv->GetStaticMethodID(mActivityClass,
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"audioInit", "(IZZI)Ljava/lang/Object;");
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midAudioWriteShortBuffer = mEnv->GetStaticMethodID(mActivityClass,
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"audioWriteShortBuffer", "([S)V");
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midAudioWriteByteBuffer = mEnv->GetStaticMethodID(mActivityClass,
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"audioWriteByteBuffer", "([B)V");
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midAudioQuit = mEnv->GetStaticMethodID(mActivityClass,
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"audioQuit", "()V");
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slouken@6212
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bHasNewData = false;
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slouken@6212
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if(!midCreateGLContext || !midFlipBuffers || !midAudioInit ||
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!midAudioWriteShortBuffer || !midAudioWriteByteBuffer || !midAudioQuit) {
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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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// Resize
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extern "C" void Java_org_libsdl_app_SDLActivity_onNativeResize(
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slouken@4998
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JNIEnv* env, jclass jcls,
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jint width, jint height, jint format)
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{
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Android_SetScreenResolution(width, height, format);
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}
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slouken@4995
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// Keydown
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slouken@4995
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extern "C" void Java_org_libsdl_app_SDLActivity_onNativeKeyDown(
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slouken@4998
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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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extern "C" void Java_org_libsdl_app_SDLActivity_onNativeKeyUp(
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slouken@4998
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JNIEnv* env, jclass jcls, jint keycode)
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{
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slouken@4980
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Android_OnKeyUp(keycode);
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}
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slouken@4964
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// Touch
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slouken@4995
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extern "C" void Java_org_libsdl_app_SDLActivity_onNativeTouch(
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slouken@4998
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JNIEnv* env, jclass jcls,
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icculus@5982
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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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slouken@4964
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{
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icculus@5982
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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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// Accelerometer
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slouken@4964
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extern "C" void Java_org_libsdl_app_SDLActivity_onNativeAccel(
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slouken@4998
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JNIEnv* env, jclass jcls,
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slouken@4995
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jfloat x, jfloat y, jfloat z)
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slouken@4964
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{
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slouken@4964
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fLastAccelerometer[0] = x;
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slouken@4964
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fLastAccelerometer[1] = y;
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slouken@6212
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fLastAccelerometer[2] = z;
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slouken@6212
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bHasNewData = true;
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slouken@4964
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}
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slouken@4964
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slouken@4995
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// Quit
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slouken@4995
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extern "C" void Java_org_libsdl_app_SDLActivity_nativeQuit(
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slouken@4998
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JNIEnv* env, jclass cls)
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slouken@4995
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180 |
{
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slouken@4995
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181 |
// Inject a SDL_QUIT event
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slouken@4995
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SDL_SendQuit();
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slouken@4995
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183 |
}
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slouken@4995
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slouken@6186
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// Pause
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slouken@6186
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extern "C" void Java_org_libsdl_app_SDLActivity_nativePause(
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slouken@6186
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JNIEnv* env, jclass cls)
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slouken@6186
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188 |
{
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slouken@6186
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if (Android_Window) {
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gabomdq@6330
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/* Signal the pause semaphore so the event loop knows to pause and (optionally) block itself */
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gabomdq@6330
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if (!SDL_SemValue(Android_PauseSem)) SDL_SemPost(Android_PauseSem);
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slouken@6186
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SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
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slouken@6191
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SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
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slouken@6186
|
194 |
}
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slouken@6186
|
195 |
}
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slouken@6186
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196 |
|
slouken@6186
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197 |
// Resume
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slouken@6186
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198 |
extern "C" void Java_org_libsdl_app_SDLActivity_nativeResume(
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slouken@6186
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JNIEnv* env, jclass cls)
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slouken@6186
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200 |
{
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slouken@6186
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201 |
if (Android_Window) {
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gabomdq@6330
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/* Signal the resume semaphore so the event loop knows to resume and restore the GL Context
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gabomdq@6330
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203 |
* We can't restore the GL Context here because it needs to be done on the SDL main thread
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gabomdq@6330
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204 |
* and this function will be called from the Java thread instead.
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gabomdq@6330
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*/
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gabomdq@6330
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206 |
if (!SDL_SemValue(Android_ResumeSem)) SDL_SemPost(Android_ResumeSem);
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slouken@6186
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SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0);
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slouken@6191
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208 |
SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_RESTORED, 0, 0);
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slouken@6186
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209 |
}
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slouken@6186
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210 |
}
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slouken@6186
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211 |
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slouken@4995
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212 |
extern "C" void Java_org_libsdl_app_SDLActivity_nativeRunAudioThread(
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slouken@4998
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JNIEnv* env, jclass cls)
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slouken@4995
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214 |
{
|
slouken@4998
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215 |
/* This is the audio thread, with a different environment */
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gabomdq@6354
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216 |
Android_JNI_SetupThread();
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slouken@4998
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217 |
|
slouken@4996
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218 |
Android_RunAudioThread();
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slouken@4995
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219 |
}
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slouken@4964
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slouken@4964
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slouken@4964
|
222 |
/*******************************************************************************
|
slouken@4964
|
223 |
Functions called by SDL into Java
|
slouken@4964
|
224 |
*******************************************************************************/
|
slouken@6284
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225 |
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slouken@6284
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226 |
class LocalReferenceHolder
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slouken@6284
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227 |
{
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slouken@6284
|
228 |
private:
|
slouken@6284
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229 |
static int s_active;
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slouken@6284
|
230 |
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slouken@6284
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231 |
public:
|
slouken@6284
|
232 |
static bool IsActive() {
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slouken@6284
|
233 |
return s_active > 0;
|
slouken@6284
|
234 |
}
|
slouken@6284
|
235 |
|
slouken@6284
|
236 |
public:
|
slouken@6284
|
237 |
LocalReferenceHolder() : m_env(NULL) { }
|
slouken@6284
|
238 |
~LocalReferenceHolder() {
|
slouken@6284
|
239 |
if (m_env) {
|
slouken@6284
|
240 |
m_env->PopLocalFrame(NULL);
|
slouken@6284
|
241 |
--s_active;
|
slouken@6284
|
242 |
}
|
slouken@6284
|
243 |
}
|
slouken@6284
|
244 |
|
slouken@6284
|
245 |
bool init(JNIEnv *env, jint capacity = 16) {
|
slouken@6284
|
246 |
if (env->PushLocalFrame(capacity) < 0) {
|
slouken@6284
|
247 |
SDL_SetError("Failed to allocate enough JVM local references");
|
slouken@6284
|
248 |
return false;
|
slouken@6284
|
249 |
}
|
slouken@6284
|
250 |
++s_active;
|
slouken@6284
|
251 |
m_env = env;
|
slouken@6284
|
252 |
return true;
|
slouken@6284
|
253 |
}
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slouken@6284
|
254 |
|
slouken@6284
|
255 |
protected:
|
slouken@6284
|
256 |
JNIEnv *m_env;
|
slouken@6284
|
257 |
};
|
slouken@6284
|
258 |
int LocalReferenceHolder::s_active;
|
slouken@6284
|
259 |
|
slouken@5222
|
260 |
extern "C" SDL_bool Android_JNI_CreateContext(int majorVersion, int minorVersion)
|
slouken@4964
|
261 |
{
|
gabomdq@6354
|
262 |
JNIEnv *mEnv = Android_JNI_GetEnv();
|
slouken@5222
|
263 |
if (mEnv->CallStaticBooleanMethod(mActivityClass, midCreateGLContext, majorVersion, minorVersion)) {
|
slouken@5222
|
264 |
return SDL_TRUE;
|
slouken@5222
|
265 |
} else {
|
slouken@5222
|
266 |
return SDL_FALSE;
|
slouken@5222
|
267 |
}
|
slouken@4964
|
268 |
}
|
slouken@4964
|
269 |
|
slouken@4989
|
270 |
extern "C" void Android_JNI_SwapWindow()
|
slouken@4964
|
271 |
{
|
gabomdq@6354
|
272 |
JNIEnv *mEnv = Android_JNI_GetEnv();
|
slouken@4998
|
273 |
mEnv->CallStaticVoidMethod(mActivityClass, midFlipBuffers);
|
slouken@4998
|
274 |
}
|
slouken@4998
|
275 |
|
slouken@4998
|
276 |
extern "C" void Android_JNI_SetActivityTitle(const char *title)
|
slouken@4998
|
277 |
{
|
slouken@4998
|
278 |
jmethodID mid;
|
gabomdq@6354
|
279 |
JNIEnv *mEnv = Android_JNI_GetEnv();
|
slouken@4998
|
280 |
mid = mEnv->GetStaticMethodID(mActivityClass,"setActivityTitle","(Ljava/lang/String;)V");
|
slouken@4998
|
281 |
if (mid) {
|
gabomdq@6307
|
282 |
jstring jtitle = reinterpret_cast<jstring>(mEnv->NewStringUTF(title));
|
gabomdq@6307
|
283 |
mEnv->CallStaticVoidMethod(mActivityClass, mid, jtitle);
|
gabomdq@6307
|
284 |
mEnv->DeleteLocalRef(jtitle);
|
slouken@4998
|
285 |
}
|
slouken@4964
|
286 |
}
|
slouken@4964
|
287 |
|
slouken@6212
|
288 |
extern "C" SDL_bool Android_JNI_GetAccelerometerValues(float values[3])
|
slouken@5000
|
289 |
{
|
slouken@5000
|
290 |
int i;
|
slouken@6212
|
291 |
SDL_bool retval = SDL_FALSE;
|
slouken@6212
|
292 |
|
slouken@6212
|
293 |
if (bHasNewData) {
|
slouken@6212
|
294 |
for (i = 0; i < 3; ++i) {
|
slouken@6212
|
295 |
values[i] = fLastAccelerometer[i];
|
slouken@6212
|
296 |
}
|
slouken@6212
|
297 |
bHasNewData = false;
|
slouken@6212
|
298 |
retval = SDL_TRUE;
|
slouken@5000
|
299 |
}
|
slouken@6212
|
300 |
|
slouken@6212
|
301 |
return retval;
|
slouken@5000
|
302 |
}
|
slouken@5000
|
303 |
|
gabomdq@6354
|
304 |
static void Android_JNI_ThreadDestroyed(void* value) {
|
gabomdq@6354
|
305 |
/* The thread is being destroyed, detach it from the Java VM and set the mThreadKey value to NULL as required */
|
gabomdq@6354
|
306 |
JNIEnv *env = (JNIEnv*) value;
|
gabomdq@6354
|
307 |
if (env != NULL) {
|
gabomdq@6354
|
308 |
mJavaVM->DetachCurrentThread();
|
gabomdq@6354
|
309 |
pthread_setspecific(mThreadKey, NULL);
|
gabomdq@6354
|
310 |
}
|
gabomdq@6354
|
311 |
}
|
gabomdq@6354
|
312 |
|
gabomdq@6354
|
313 |
JNIEnv* Android_JNI_GetEnv(void) {
|
gabomdq@6354
|
314 |
/* From http://developer.android.com/guide/practices/jni.html
|
gabomdq@6354
|
315 |
* All threads are Linux threads, scheduled by the kernel.
|
gabomdq@6354
|
316 |
* They're usually started from managed code (using Thread.start), but they can also be created elsewhere and then
|
gabomdq@6354
|
317 |
* attached to the JavaVM. For example, a thread started with pthread_create can be attached with the
|
gabomdq@6354
|
318 |
* JNI AttachCurrentThread or AttachCurrentThreadAsDaemon functions. Until a thread is attached, it has no JNIEnv,
|
gabomdq@6354
|
319 |
* and cannot make JNI calls.
|
gabomdq@6354
|
320 |
* Attaching a natively-created thread causes a java.lang.Thread object to be constructed and added to the "main"
|
gabomdq@6354
|
321 |
* ThreadGroup, making it visible to the debugger. Calling AttachCurrentThread on an already-attached thread
|
gabomdq@6354
|
322 |
* is a no-op.
|
gabomdq@6354
|
323 |
* Note: You can call this function any number of times for the same thread, there's no harm in it
|
gabomdq@6354
|
324 |
*/
|
gabomdq@6354
|
325 |
|
gabomdq@6354
|
326 |
JNIEnv *env;
|
gabomdq@6354
|
327 |
int status = mJavaVM->AttachCurrentThread(&env, NULL);
|
gabomdq@6354
|
328 |
if(status < 0) {
|
gabomdq@6354
|
329 |
LOGE("failed to attach current thread");
|
gabomdq@6354
|
330 |
return 0;
|
gabomdq@6354
|
331 |
}
|
gabomdq@6354
|
332 |
|
gabomdq@6354
|
333 |
return env;
|
gabomdq@6354
|
334 |
}
|
gabomdq@6354
|
335 |
|
gabomdq@6354
|
336 |
int Android_JNI_SetupThread(void) {
|
gabomdq@6354
|
337 |
/* From http://developer.android.com/guide/practices/jni.html
|
gabomdq@6354
|
338 |
* Threads attached through JNI must call DetachCurrentThread before they exit. If coding this directly is awkward,
|
gabomdq@6354
|
339 |
* in Android 2.0 (Eclair) and higher you can use pthread_key_create to define a destructor function that will be
|
gabomdq@6354
|
340 |
* called before the thread exits, and call DetachCurrentThread from there. (Use that key with pthread_setspecific
|
gabomdq@6354
|
341 |
* to store the JNIEnv in thread-local-storage; that way it'll be passed into your destructor as the argument.)
|
gabomdq@6354
|
342 |
* Note: The destructor is not called unless the stored value is != NULL
|
gabomdq@6354
|
343 |
* Note: You can call this function any number of times for the same thread, there's no harm in it
|
gabomdq@6354
|
344 |
* (except for some lost CPU cycles)
|
gabomdq@6354
|
345 |
*/
|
gabomdq@6354
|
346 |
JNIEnv *env = Android_JNI_GetEnv();
|
gabomdq@6354
|
347 |
pthread_setspecific(mThreadKey, (void*) env);
|
gabomdq@6354
|
348 |
return 1;
|
gabomdq@6354
|
349 |
}
|
gabomdq@6354
|
350 |
|
slouken@4995
|
351 |
//
|
slouken@4995
|
352 |
// Audio support
|
slouken@4995
|
353 |
//
|
slouken@4996
|
354 |
static jboolean audioBuffer16Bit = JNI_FALSE;
|
slouken@4996
|
355 |
static jboolean audioBufferStereo = JNI_FALSE;
|
slouken@4996
|
356 |
static jobject audioBuffer = NULL;
|
slouken@4996
|
357 |
static void* audioBufferPinned = NULL;
|
slouken@4995
|
358 |
|
slouken@4995
|
359 |
extern "C" int Android_JNI_OpenAudioDevice(int sampleRate, int is16Bit, int channelCount, int desiredBufferFrames)
|
slouken@4995
|
360 |
{
|
slouken@4996
|
361 |
int audioBufferFrames;
|
slouken@4996
|
362 |
|
icculus@5996
|
363 |
int status;
|
gabomdq@6354
|
364 |
JNIEnv *env = Android_JNI_GetEnv();
|
gabomdq@6354
|
365 |
|
gabomdq@6354
|
366 |
if (!env) {
|
gabomdq@6354
|
367 |
LOGE("callback_handler: failed to attach current thread");
|
icculus@5996
|
368 |
}
|
gabomdq@6354
|
369 |
Android_JNI_SetupThread();
|
icculus@5996
|
370 |
|
icculus@5996
|
371 |
|
slouken@4996
|
372 |
__android_log_print(ANDROID_LOG_VERBOSE, "SDL", "SDL audio: opening device");
|
slouken@4996
|
373 |
audioBuffer16Bit = is16Bit;
|
slouken@4996
|
374 |
audioBufferStereo = channelCount > 1;
|
slouken@4995
|
375 |
|
icculus@5996
|
376 |
audioBuffer = env->CallStaticObjectMethod(mActivityClass, midAudioInit, sampleRate, audioBuffer16Bit, audioBufferStereo, desiredBufferFrames);
|
slouken@4996
|
377 |
|
slouken@4996
|
378 |
if (audioBuffer == NULL) {
|
slouken@4996
|
379 |
__android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: didn't get back a good audio buffer!");
|
slouken@4996
|
380 |
return 0;
|
slouken@4996
|
381 |
}
|
icculus@5996
|
382 |
audioBuffer = env->NewGlobalRef(audioBuffer);
|
slouken@4995
|
383 |
|
slouken@4996
|
384 |
jboolean isCopy = JNI_FALSE;
|
slouken@4996
|
385 |
if (audioBuffer16Bit) {
|
icculus@5996
|
386 |
audioBufferPinned = env->GetShortArrayElements((jshortArray)audioBuffer, &isCopy);
|
icculus@5996
|
387 |
audioBufferFrames = env->GetArrayLength((jshortArray)audioBuffer);
|
slouken@4996
|
388 |
} else {
|
icculus@5996
|
389 |
audioBufferPinned = env->GetByteArrayElements((jbyteArray)audioBuffer, &isCopy);
|
icculus@5996
|
390 |
audioBufferFrames = env->GetArrayLength((jbyteArray)audioBuffer);
|
slouken@4996
|
391 |
}
|
slouken@4996
|
392 |
if (audioBufferStereo) {
|
slouken@4996
|
393 |
audioBufferFrames /= 2;
|
slouken@4996
|
394 |
}
|
icculus@5996
|
395 |
|
slouken@4996
|
396 |
return audioBufferFrames;
|
slouken@4995
|
397 |
}
|
slouken@4995
|
398 |
|
slouken@4996
|
399 |
extern "C" void * Android_JNI_GetAudioBuffer()
|
slouken@4964
|
400 |
{
|
slouken@4996
|
401 |
return audioBufferPinned;
|
slouken@4995
|
402 |
}
|
slouken@4964
|
403 |
|
slouken@4996
|
404 |
extern "C" void Android_JNI_WriteAudioBuffer()
|
slouken@4995
|
405 |
{
|
gabomdq@6354
|
406 |
JNIEnv *mAudioEnv = Android_JNI_GetEnv();
|
gabomdq@6354
|
407 |
|
slouken@4996
|
408 |
if (audioBuffer16Bit) {
|
slouken@4996
|
409 |
mAudioEnv->ReleaseShortArrayElements((jshortArray)audioBuffer, (jshort *)audioBufferPinned, JNI_COMMIT);
|
slouken@4998
|
410 |
mAudioEnv->CallStaticVoidMethod(mActivityClass, midAudioWriteShortBuffer, (jshortArray)audioBuffer);
|
slouken@4996
|
411 |
} else {
|
slouken@4996
|
412 |
mAudioEnv->ReleaseByteArrayElements((jbyteArray)audioBuffer, (jbyte *)audioBufferPinned, JNI_COMMIT);
|
slouken@4998
|
413 |
mAudioEnv->CallStaticVoidMethod(mActivityClass, midAudioWriteByteBuffer, (jbyteArray)audioBuffer);
|
slouken@4996
|
414 |
}
|
slouken@4964
|
415 |
|
slouken@4996
|
416 |
/* JNI_COMMIT means the changes are committed to the VM but the buffer remains pinned */
|
slouken@4995
|
417 |
}
|
slouken@4995
|
418 |
|
slouken@4995
|
419 |
extern "C" void Android_JNI_CloseAudioDevice()
|
slouken@4995
|
420 |
{
|
icculus@5996
|
421 |
int status;
|
gabomdq@6354
|
422 |
JNIEnv *env = Android_JNI_GetEnv();
|
icculus@5996
|
423 |
|
icculus@5996
|
424 |
env->CallStaticVoidMethod(mActivityClass, midAudioQuit);
|
slouken@4964
|
425 |
|
slouken@4997
|
426 |
if (audioBuffer) {
|
icculus@5996
|
427 |
env->DeleteGlobalRef(audioBuffer);
|
slouken@4997
|
428 |
audioBuffer = NULL;
|
slouken@4997
|
429 |
audioBufferPinned = NULL;
|
slouken@4997
|
430 |
}
|
slouken@4964
|
431 |
}
|
slouken@4981
|
432 |
|
tim@5650
|
433 |
// Test for an exception and call SDL_SetError with its detail if one occurs
|
tim@5650
|
434 |
static bool Android_JNI_ExceptionOccurred()
|
tim@5650
|
435 |
{
|
slouken@6284
|
436 |
SDL_assert(LocalReferenceHolder::IsActive());
|
gabomdq@6354
|
437 |
JNIEnv *mEnv = Android_JNI_GetEnv();
|
slouken@6284
|
438 |
|
tim@5650
|
439 |
jthrowable exception = mEnv->ExceptionOccurred();
|
tim@5650
|
440 |
if (exception != NULL) {
|
tim@5650
|
441 |
jmethodID mid;
|
tim@5650
|
442 |
|
tim@5650
|
443 |
// Until this happens most JNI operations have undefined behaviour
|
tim@5650
|
444 |
mEnv->ExceptionClear();
|
tim@5650
|
445 |
|
tim@5650
|
446 |
jclass exceptionClass = mEnv->GetObjectClass(exception);
|
tim@5650
|
447 |
jclass classClass = mEnv->FindClass("java/lang/Class");
|
tim@5650
|
448 |
|
tim@5650
|
449 |
mid = mEnv->GetMethodID(classClass, "getName", "()Ljava/lang/String;");
|
tim@5650
|
450 |
jstring exceptionName = (jstring)mEnv->CallObjectMethod(exceptionClass, mid);
|
tim@5650
|
451 |
const char* exceptionNameUTF8 = mEnv->GetStringUTFChars(exceptionName, 0);
|
tim@5650
|
452 |
|
tim@5650
|
453 |
mid = mEnv->GetMethodID(exceptionClass, "getMessage", "()Ljava/lang/String;");
|
icculus@5860
|
454 |
jstring exceptionMessage = (jstring)mEnv->CallObjectMethod(exception, mid);
|
tim@5650
|
455 |
|
tim@5650
|
456 |
if (exceptionMessage != NULL) {
|
tim@5650
|
457 |
const char* exceptionMessageUTF8 = mEnv->GetStringUTFChars(
|
tim@5650
|
458 |
exceptionMessage, 0);
|
tim@5650
|
459 |
SDL_SetError("%s: %s", exceptionNameUTF8, exceptionMessageUTF8);
|
tim@5650
|
460 |
mEnv->ReleaseStringUTFChars(exceptionMessage, exceptionMessageUTF8);
|
tim@5650
|
461 |
} else {
|
tim@5650
|
462 |
SDL_SetError("%s", exceptionNameUTF8);
|
tim@5650
|
463 |
}
|
tim@5650
|
464 |
|
tim@5650
|
465 |
mEnv->ReleaseStringUTFChars(exceptionName, exceptionNameUTF8);
|
tim@5650
|
466 |
|
tim@5650
|
467 |
return true;
|
tim@5650
|
468 |
}
|
tim@5650
|
469 |
|
tim@5650
|
470 |
return false;
|
tim@5650
|
471 |
}
|
tim@5650
|
472 |
|
icculus@5582
|
473 |
static int Android_JNI_FileOpen(SDL_RWops* ctx)
|
icculus@5582
|
474 |
{
|
slouken@6284
|
475 |
LocalReferenceHolder refs;
|
tim@5650
|
476 |
int result = 0;
|
tim@5650
|
477 |
|
tim@5650
|
478 |
jmethodID mid;
|
tim@5650
|
479 |
jobject context;
|
tim@5650
|
480 |
jobject assetManager;
|
tim@5650
|
481 |
jobject inputStream;
|
tim@5650
|
482 |
jclass channels;
|
tim@5650
|
483 |
jobject readableByteChannel;
|
tim@5650
|
484 |
jstring fileNameJString;
|
tim@5650
|
485 |
|
gabomdq@6354
|
486 |
JNIEnv *mEnv = Android_JNI_GetEnv();
|
slouken@6284
|
487 |
if (!refs.init(mEnv)) {
|
tim@5650
|
488 |
goto failure;
|
tim@5650
|
489 |
}
|
tim@5650
|
490 |
|
gabomdq@6308
|
491 |
fileNameJString = (jstring)ctx->hidden.androidio.fileNameRef;
|
icculus@5582
|
492 |
|
icculus@5582
|
493 |
// context = SDLActivity.getContext();
|
tim@5650
|
494 |
mid = mEnv->GetStaticMethodID(mActivityClass,
|
icculus@5582
|
495 |
"getContext","()Landroid/content/Context;");
|
tim@5650
|
496 |
context = mEnv->CallStaticObjectMethod(mActivityClass, mid);
|
icculus@5582
|
497 |
|
icculus@5582
|
498 |
// assetManager = context.getAssets();
|
icculus@5582
|
499 |
mid = mEnv->GetMethodID(mEnv->GetObjectClass(context),
|
tim@5650
|
500 |
"getAssets", "()Landroid/content/res/AssetManager;");
|
tim@5650
|
501 |
assetManager = mEnv->CallObjectMethod(context, mid);
|
icculus@5582
|
502 |
|
icculus@5582
|
503 |
// inputStream = assetManager.open(<filename>);
|
icculus@5582
|
504 |
mid = mEnv->GetMethodID(mEnv->GetObjectClass(assetManager),
|
icculus@5582
|
505 |
"open", "(Ljava/lang/String;)Ljava/io/InputStream;");
|
tim@5650
|
506 |
inputStream = mEnv->CallObjectMethod(assetManager, mid, fileNameJString);
|
tim@5650
|
507 |
if (Android_JNI_ExceptionOccurred()) {
|
tim@5650
|
508 |
goto failure;
|
icculus@5582
|
509 |
}
|
icculus@5582
|
510 |
|
tim@5650
|
511 |
ctx->hidden.androidio.inputStreamRef = mEnv->NewGlobalRef(inputStream);
|
tim@5650
|
512 |
|
icculus@5582
|
513 |
// Despite all the visible documentation on [Asset]InputStream claiming
|
icculus@5582
|
514 |
// that the .available() method is not guaranteed to return the entire file
|
icculus@5582
|
515 |
// size, comments in <sdk>/samples/<ver>/ApiDemos/src/com/example/ ...
|
icculus@5582
|
516 |
// android/apis/content/ReadAsset.java imply that Android's
|
icculus@5582
|
517 |
// AssetInputStream.available() /will/ always return the total file size
|
icculus@5582
|
518 |
|
icculus@5582
|
519 |
// size = inputStream.available();
|
icculus@5582
|
520 |
mid = mEnv->GetMethodID(mEnv->GetObjectClass(inputStream),
|
icculus@5582
|
521 |
"available", "()I");
|
icculus@5582
|
522 |
ctx->hidden.androidio.size = mEnv->CallIntMethod(inputStream, mid);
|
tim@5650
|
523 |
if (Android_JNI_ExceptionOccurred()) {
|
tim@5650
|
524 |
goto failure;
|
icculus@5582
|
525 |
}
|
icculus@5582
|
526 |
|
icculus@5582
|
527 |
// readableByteChannel = Channels.newChannel(inputStream);
|
tim@5650
|
528 |
channels = mEnv->FindClass("java/nio/channels/Channels");
|
icculus@5582
|
529 |
mid = mEnv->GetStaticMethodID(channels,
|
icculus@5582
|
530 |
"newChannel",
|
icculus@5582
|
531 |
"(Ljava/io/InputStream;)Ljava/nio/channels/ReadableByteChannel;");
|
tim@5650
|
532 |
readableByteChannel = mEnv->CallStaticObjectMethod(
|
icculus@5582
|
533 |
channels, mid, inputStream);
|
tim@5650
|
534 |
if (Android_JNI_ExceptionOccurred()) {
|
tim@5650
|
535 |
goto failure;
|
icculus@5582
|
536 |
}
|
icculus@5582
|
537 |
|
tim@5650
|
538 |
ctx->hidden.androidio.readableByteChannelRef =
|
tim@5650
|
539 |
mEnv->NewGlobalRef(readableByteChannel);
|
tim@5650
|
540 |
|
icculus@5582
|
541 |
// Store .read id for reading purposes
|
icculus@5582
|
542 |
mid = mEnv->GetMethodID(mEnv->GetObjectClass(readableByteChannel),
|
icculus@5582
|
543 |
"read", "(Ljava/nio/ByteBuffer;)I");
|
icculus@5582
|
544 |
ctx->hidden.androidio.readMethod = mid;
|
icculus@5582
|
545 |
|
icculus@5582
|
546 |
ctx->hidden.androidio.position = 0;
|
icculus@5582
|
547 |
|
tim@5650
|
548 |
if (false) {
|
tim@5650
|
549 |
failure:
|
tim@5650
|
550 |
result = -1;
|
tim@5650
|
551 |
|
tim@5650
|
552 |
mEnv->DeleteGlobalRef((jobject)ctx->hidden.androidio.fileNameRef);
|
tim@5650
|
553 |
|
tim@5650
|
554 |
if(ctx->hidden.androidio.inputStreamRef != NULL) {
|
tim@5650
|
555 |
mEnv->DeleteGlobalRef((jobject)ctx->hidden.androidio.inputStreamRef);
|
tim@5650
|
556 |
}
|
gabomdq@6308
|
557 |
|
gabomdq@6308
|
558 |
if(ctx->hidden.androidio.readableByteChannelRef != NULL) {
|
gabomdq@6308
|
559 |
mEnv->DeleteGlobalRef((jobject)ctx->hidden.androidio.readableByteChannelRef);
|
gabomdq@6308
|
560 |
}
|
gabomdq@6308
|
561 |
|
tim@5650
|
562 |
}
|
tim@5650
|
563 |
|
tim@5650
|
564 |
return result;
|
icculus@5582
|
565 |
}
|
icculus@5582
|
566 |
|
icculus@5582
|
567 |
extern "C" int Android_JNI_FileOpen(SDL_RWops* ctx,
|
icculus@5582
|
568 |
const char* fileName, const char*)
|
icculus@5582
|
569 |
{
|
slouken@6284
|
570 |
LocalReferenceHolder refs;
|
gabomdq@6354
|
571 |
JNIEnv *mEnv = Android_JNI_GetEnv();
|
slouken@6284
|
572 |
|
slouken@6284
|
573 |
if (!refs.init(mEnv)) {
|
slouken@6284
|
574 |
return -1;
|
slouken@6284
|
575 |
}
|
slouken@6284
|
576 |
|
icculus@5582
|
577 |
if (!ctx) {
|
icculus@5582
|
578 |
return -1;
|
icculus@5582
|
579 |
}
|
icculus@5582
|
580 |
|
icculus@5582
|
581 |
jstring fileNameJString = mEnv->NewStringUTF(fileName);
|
icculus@5582
|
582 |
ctx->hidden.androidio.fileNameRef = mEnv->NewGlobalRef(fileNameJString);
|
tim@5650
|
583 |
ctx->hidden.androidio.inputStreamRef = NULL;
|
gabomdq@6335
|
584 |
ctx->hidden.androidio.readableByteChannelRef = NULL;
|
gabomdq@6335
|
585 |
ctx->hidden.androidio.readMethod = NULL;
|
icculus@5582
|
586 |
|
icculus@5582
|
587 |
return Android_JNI_FileOpen(ctx);
|
icculus@5582
|
588 |
}
|
icculus@5582
|
589 |
|
icculus@5582
|
590 |
extern "C" size_t Android_JNI_FileRead(SDL_RWops* ctx, void* buffer,
|
icculus@5582
|
591 |
size_t size, size_t maxnum)
|
icculus@5582
|
592 |
{
|
slouken@6284
|
593 |
LocalReferenceHolder refs;
|
gabomdq@6377
|
594 |
jlong bytesRemaining = (jlong) (size * maxnum);
|
gabomdq@6377
|
595 |
jlong bytesMax = (jlong) (ctx->hidden.androidio.size - ctx->hidden.androidio.position);
|
icculus@5582
|
596 |
int bytesRead = 0;
|
icculus@5582
|
597 |
|
gabomdq@6377
|
598 |
/* Don't read more bytes than those that remain in the file, otherwise we get an exception */
|
gabomdq@6377
|
599 |
if (bytesRemaining > bytesMax) bytesRemaining = bytesMax;
|
gabomdq@6377
|
600 |
|
gabomdq@6354
|
601 |
JNIEnv *mEnv = Android_JNI_GetEnv();
|
slouken@6284
|
602 |
if (!refs.init(mEnv)) {
|
slouken@6284
|
603 |
return -1;
|
slouken@6284
|
604 |
}
|
slouken@6284
|
605 |
|
gabomdq@6308
|
606 |
jobject readableByteChannel = (jobject)ctx->hidden.androidio.readableByteChannelRef;
|
icculus@5582
|
607 |
jmethodID readMethod = (jmethodID)ctx->hidden.androidio.readMethod;
|
icculus@5582
|
608 |
jobject byteBuffer = mEnv->NewDirectByteBuffer(buffer, bytesRemaining);
|
icculus@5582
|
609 |
|
icculus@5582
|
610 |
while (bytesRemaining > 0) {
|
icculus@5582
|
611 |
// result = readableByteChannel.read(...);
|
icculus@5582
|
612 |
int result = mEnv->CallIntMethod(readableByteChannel, readMethod, byteBuffer);
|
icculus@5582
|
613 |
|
tim@5650
|
614 |
if (Android_JNI_ExceptionOccurred()) {
|
icculus@5582
|
615 |
return 0;
|
icculus@5582
|
616 |
}
|
icculus@5582
|
617 |
|
icculus@5582
|
618 |
if (result < 0) {
|
icculus@5582
|
619 |
break;
|
icculus@5582
|
620 |
}
|
icculus@5582
|
621 |
|
icculus@5582
|
622 |
bytesRemaining -= result;
|
icculus@5582
|
623 |
bytesRead += result;
|
icculus@5582
|
624 |
ctx->hidden.androidio.position += result;
|
icculus@5582
|
625 |
}
|
icculus@5582
|
626 |
|
icculus@5582
|
627 |
return bytesRead / size;
|
icculus@5582
|
628 |
}
|
icculus@5582
|
629 |
|
icculus@5582
|
630 |
extern "C" size_t Android_JNI_FileWrite(SDL_RWops* ctx, const void* buffer,
|
icculus@5582
|
631 |
size_t size, size_t num)
|
icculus@5582
|
632 |
{
|
icculus@5582
|
633 |
SDL_SetError("Cannot write to Android package filesystem");
|
icculus@5582
|
634 |
return 0;
|
icculus@5582
|
635 |
}
|
icculus@5582
|
636 |
|
icculus@5582
|
637 |
static int Android_JNI_FileClose(SDL_RWops* ctx, bool release)
|
icculus@5582
|
638 |
{
|
slouken@6284
|
639 |
LocalReferenceHolder refs;
|
icculus@5582
|
640 |
int result = 0;
|
gabomdq@6354
|
641 |
JNIEnv *mEnv = Android_JNI_GetEnv();
|
icculus@5582
|
642 |
|
slouken@6284
|
643 |
if (!refs.init(mEnv)) {
|
slouken@6284
|
644 |
SDL_SetError("Failed to allocate enough JVM local references");
|
slouken@6284
|
645 |
return -1;
|
slouken@6284
|
646 |
}
|
slouken@6284
|
647 |
|
icculus@5582
|
648 |
if (ctx) {
|
icculus@5582
|
649 |
if (release) {
|
icculus@5582
|
650 |
mEnv->DeleteGlobalRef((jobject)ctx->hidden.androidio.fileNameRef);
|
icculus@5582
|
651 |
}
|
icculus@5582
|
652 |
|
gabomdq@6308
|
653 |
jobject inputStream = (jobject)ctx->hidden.androidio.inputStreamRef;
|
icculus@5582
|
654 |
|
icculus@5582
|
655 |
// inputStream.close();
|
icculus@5582
|
656 |
jmethodID mid = mEnv->GetMethodID(mEnv->GetObjectClass(inputStream),
|
icculus@5582
|
657 |
"close", "()V");
|
icculus@5582
|
658 |
mEnv->CallVoidMethod(inputStream, mid);
|
icculus@5582
|
659 |
mEnv->DeleteGlobalRef((jobject)ctx->hidden.androidio.inputStreamRef);
|
icculus@5582
|
660 |
mEnv->DeleteGlobalRef((jobject)ctx->hidden.androidio.readableByteChannelRef);
|
tim@5650
|
661 |
if (Android_JNI_ExceptionOccurred()) {
|
icculus@5582
|
662 |
result = -1;
|
icculus@5582
|
663 |
}
|
icculus@5582
|
664 |
|
icculus@5582
|
665 |
if (release) {
|
icculus@5582
|
666 |
SDL_FreeRW(ctx);
|
icculus@5582
|
667 |
}
|
icculus@5582
|
668 |
}
|
icculus@5582
|
669 |
|
icculus@5582
|
670 |
return result;
|
icculus@5582
|
671 |
}
|
icculus@5582
|
672 |
|
icculus@5582
|
673 |
|
icculus@5582
|
674 |
extern "C" long Android_JNI_FileSeek(SDL_RWops* ctx, long offset, int whence)
|
icculus@5582
|
675 |
{
|
icculus@5582
|
676 |
long newPosition;
|
icculus@5582
|
677 |
|
icculus@5582
|
678 |
switch (whence) {
|
icculus@5582
|
679 |
case RW_SEEK_SET:
|
icculus@5582
|
680 |
newPosition = offset;
|
icculus@5582
|
681 |
break;
|
icculus@5582
|
682 |
case RW_SEEK_CUR:
|
icculus@5582
|
683 |
newPosition = ctx->hidden.androidio.position + offset;
|
icculus@5582
|
684 |
break;
|
icculus@5582
|
685 |
case RW_SEEK_END:
|
icculus@5582
|
686 |
newPosition = ctx->hidden.androidio.size + offset;
|
icculus@5582
|
687 |
break;
|
icculus@5582
|
688 |
default:
|
icculus@5582
|
689 |
SDL_SetError("Unknown value for 'whence'");
|
icculus@5582
|
690 |
return -1;
|
icculus@5582
|
691 |
}
|
icculus@5582
|
692 |
if (newPosition < 0) {
|
icculus@5582
|
693 |
newPosition = 0;
|
icculus@5582
|
694 |
}
|
icculus@5582
|
695 |
if (newPosition > ctx->hidden.androidio.size) {
|
icculus@5582
|
696 |
newPosition = ctx->hidden.androidio.size;
|
icculus@5582
|
697 |
}
|
icculus@5582
|
698 |
|
icculus@5582
|
699 |
long movement = newPosition - ctx->hidden.androidio.position;
|
gabomdq@6308
|
700 |
jobject inputStream = (jobject)ctx->hidden.androidio.inputStreamRef;
|
icculus@5582
|
701 |
|
icculus@5582
|
702 |
if (movement > 0) {
|
tim@5993
|
703 |
unsigned char buffer[1024];
|
tim@5993
|
704 |
|
icculus@5582
|
705 |
// The easy case where we're seeking forwards
|
icculus@5582
|
706 |
while (movement > 0) {
|
icculus@5994
|
707 |
long amount = (long) sizeof (buffer);
|
icculus@5994
|
708 |
if (amount > movement) {
|
icculus@5994
|
709 |
amount = movement;
|
icculus@5994
|
710 |
}
|
icculus@5994
|
711 |
size_t result = Android_JNI_FileRead(ctx, buffer, 1, amount);
|
tim@5993
|
712 |
|
tim@5993
|
713 |
if (result <= 0) {
|
tim@5993
|
714 |
// Failed to read/skip the required amount, so fail
|
icculus@5582
|
715 |
return -1;
|
icculus@5582
|
716 |
}
|
tim@5993
|
717 |
|
tim@5993
|
718 |
movement -= result;
|
icculus@5582
|
719 |
}
|
icculus@5582
|
720 |
} else if (movement < 0) {
|
icculus@5582
|
721 |
// We can't seek backwards so we have to reopen the file and seek
|
icculus@5582
|
722 |
// forwards which obviously isn't very efficient
|
icculus@5582
|
723 |
Android_JNI_FileClose(ctx, false);
|
icculus@5582
|
724 |
Android_JNI_FileOpen(ctx);
|
icculus@5582
|
725 |
Android_JNI_FileSeek(ctx, newPosition, RW_SEEK_SET);
|
icculus@5582
|
726 |
}
|
icculus@5582
|
727 |
|
icculus@5582
|
728 |
ctx->hidden.androidio.position = newPosition;
|
icculus@5582
|
729 |
|
icculus@5582
|
730 |
return ctx->hidden.androidio.position;
|
icculus@5582
|
731 |
}
|
icculus@5582
|
732 |
|
icculus@5582
|
733 |
extern "C" int Android_JNI_FileClose(SDL_RWops* ctx)
|
icculus@5582
|
734 |
{
|
icculus@5582
|
735 |
return Android_JNI_FileClose(ctx, true);
|
icculus@5582
|
736 |
}
|
icculus@5582
|
737 |
|
slouken@6392
|
738 |
// sends message to be handled on the UI event dispatch thread
|
slouken@6392
|
739 |
extern "C" int Android_JNI_SendMessage(int command, int param)
|
slouken@6392
|
740 |
{
|
slouken@6392
|
741 |
JNIEnv *env = Android_JNI_GetEnv();
|
slouken@6392
|
742 |
if (!env) {
|
slouken@6392
|
743 |
return -1;
|
slouken@6392
|
744 |
}
|
slouken@6392
|
745 |
jmethodID mid = env->GetStaticMethodID(mActivityClass, "sendMessage", "(II)V");
|
slouken@6392
|
746 |
if (!mid) {
|
slouken@6392
|
747 |
return -1;
|
slouken@6392
|
748 |
}
|
slouken@6392
|
749 |
env->CallStaticVoidMethod(mActivityClass, mid, command, param);
|
slouken@6392
|
750 |
return 0;
|
slouken@6392
|
751 |
}
|
slouken@6392
|
752 |
|
slouken@6044
|
753 |
#endif /* __ANDROID__ */
|
slouken@6044
|
754 |
|
slouken@4981
|
755 |
/* vi: set ts=4 sw=4 expandtab: */
|