src/core/android/SDL_android.cpp
author Sam Lantinga <slouken@libsdl.org>
Sun, 12 Feb 2012 20:57:32 -0500
changeset 6284 1893d507ba42
parent 6212 78d854de3a66
child 6307 6048116f40b1
permissions -rwxr-xr-x
Fixed bug 1417 - Android_JNI_FileClose local reference bug A better solution for automatic local reference management.
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/*
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  Simple DirectMedia Layer
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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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  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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#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 JNIEnv* mEnv = NULL;
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static JNIEnv* mAudioEnv = NULL;
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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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    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* env, jclass cls)
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{
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    __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL_Android_Init()");
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    mEnv = env;
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    mActivityClass = (jclass)env->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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    bHasNewData = false;
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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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                                    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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// Keydown
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extern "C" void 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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extern "C" void 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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// Touch
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extern "C" void 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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// Accelerometer
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extern "C" void 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 = true;
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}
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// Quit
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extern "C" void Java_org_libsdl_app_SDLActivity_nativeQuit(
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                                    JNIEnv* env, jclass cls)
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{    
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    // Inject a SDL_QUIT event
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    SDL_SendQuit();
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}
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// Pause
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extern "C" void Java_org_libsdl_app_SDLActivity_nativePause(
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                                    JNIEnv* env, jclass cls)
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{
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    if (Android_Window) {
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        SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
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        SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
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    }
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}
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// Resume
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extern "C" void Java_org_libsdl_app_SDLActivity_nativeResume(
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                                    JNIEnv* env, jclass cls)
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{
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    if (Android_Window) {
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        SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0);
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        SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_RESTORED, 0, 0);
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    }
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}
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extern "C" void Java_org_libsdl_app_SDLActivity_nativeRunAudioThread(
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                                    JNIEnv* env, jclass cls)
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{
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    /* This is the audio thread, with a different environment */
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    mAudioEnv = env;
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    Android_RunAudioThread();
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}
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/*******************************************************************************
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             Functions called by SDL into Java
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*******************************************************************************/
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class LocalReferenceHolder
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{
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private:
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    static int s_active;
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public:
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    static bool IsActive() {
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        return s_active > 0;
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    }
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public:
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    LocalReferenceHolder() : m_env(NULL) { }
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    ~LocalReferenceHolder() {
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        if (m_env) {
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            m_env->PopLocalFrame(NULL);
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            --s_active;
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        }
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    }
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    bool init(JNIEnv *env, jint capacity = 16) {
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        if (env->PushLocalFrame(capacity) < 0) {
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            SDL_SetError("Failed to allocate enough JVM local references");
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            return false;
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        }
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        ++s_active;
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        m_env = env;
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        return true;
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    }
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protected:
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    JNIEnv *m_env;
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};
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int LocalReferenceHolder::s_active;
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extern "C" SDL_bool Android_JNI_CreateContext(int majorVersion, int minorVersion)
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{
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    if (mEnv->CallStaticBooleanMethod(mActivityClass, midCreateGLContext, majorVersion, minorVersion)) {
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        return SDL_TRUE;
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    } else {
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        return SDL_FALSE;
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    }
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}
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extern "C" void Android_JNI_SwapWindow()
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{
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    mEnv->CallStaticVoidMethod(mActivityClass, midFlipBuffers); 
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}
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extern "C" void Android_JNI_SetActivityTitle(const char *title)
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{
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    jmethodID mid;
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    mid = mEnv->GetStaticMethodID(mActivityClass,"setActivityTitle","(Ljava/lang/String;)V");
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    if (mid) {
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        mEnv->CallStaticVoidMethod(mActivityClass, mid, mEnv->NewStringUTF(title));
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    }
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}
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extern "C" SDL_bool Android_JNI_GetAccelerometerValues(float values[3])
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{
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    int i;
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    SDL_bool retval = SDL_FALSE;
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    if (bHasNewData) {
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        for (i = 0; i < 3; ++i) {
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            values[i] = fLastAccelerometer[i];
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        }
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        bHasNewData = false;
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        retval = SDL_TRUE;
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    }
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    return retval;
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}
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//
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// Audio support
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//
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static jboolean audioBuffer16Bit = JNI_FALSE;
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static jboolean audioBufferStereo = JNI_FALSE;
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static jobject audioBuffer = NULL;
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static void* audioBufferPinned = NULL;
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extern "C" int Android_JNI_OpenAudioDevice(int sampleRate, int is16Bit, int channelCount, int desiredBufferFrames)
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{
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    int audioBufferFrames;
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    int status;
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    JNIEnv *env;
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    static bool isAttached = false;    
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    status = mJavaVM->GetEnv((void **) &env, JNI_VERSION_1_4);
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    if(status < 0) {
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        LOGE("callback_handler: failed to get JNI environment, assuming native thread");
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        status = mJavaVM->AttachCurrentThread(&env, NULL);
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        if(status < 0) {
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            LOGE("callback_handler: failed to attach current thread");
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            return 0;
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        }
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        isAttached = true;
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    }
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    __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "SDL audio: opening device");
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    audioBuffer16Bit = is16Bit;
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    audioBufferStereo = channelCount > 1;
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    audioBuffer = env->CallStaticObjectMethod(mActivityClass, midAudioInit, sampleRate, audioBuffer16Bit, audioBufferStereo, desiredBufferFrames);
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    if (audioBuffer == NULL) {
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        __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: didn't get back a good audio buffer!");
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        return 0;
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    }
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    audioBuffer = env->NewGlobalRef(audioBuffer);
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    jboolean isCopy = JNI_FALSE;
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    if (audioBuffer16Bit) {
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        audioBufferPinned = env->GetShortArrayElements((jshortArray)audioBuffer, &isCopy);
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        audioBufferFrames = env->GetArrayLength((jshortArray)audioBuffer);
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    } else {
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        audioBufferPinned = env->GetByteArrayElements((jbyteArray)audioBuffer, &isCopy);
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        audioBufferFrames = env->GetArrayLength((jbyteArray)audioBuffer);
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    }
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    if (audioBufferStereo) {
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        audioBufferFrames /= 2;
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    }
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    if (isAttached) {
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        mJavaVM->DetachCurrentThread();
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    }
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   336
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    return audioBufferFrames;
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   338
}
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   339
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extern "C" void * Android_JNI_GetAudioBuffer()
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{
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    return audioBufferPinned;
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   343
}
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extern "C" void Android_JNI_WriteAudioBuffer()
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{
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    if (audioBuffer16Bit) {
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        mAudioEnv->ReleaseShortArrayElements((jshortArray)audioBuffer, (jshort *)audioBufferPinned, JNI_COMMIT);
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        mAudioEnv->CallStaticVoidMethod(mActivityClass, midAudioWriteShortBuffer, (jshortArray)audioBuffer);
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    } else {
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        mAudioEnv->ReleaseByteArrayElements((jbyteArray)audioBuffer, (jbyte *)audioBufferPinned, JNI_COMMIT);
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        mAudioEnv->CallStaticVoidMethod(mActivityClass, midAudioWriteByteBuffer, (jbyteArray)audioBuffer);
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    }
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    /* JNI_COMMIT means the changes are committed to the VM but the buffer remains pinned */
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}
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   358
extern "C" void Android_JNI_CloseAudioDevice()
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{
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    int status;
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    JNIEnv *env;
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   362
    static bool isAttached = false;    
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   363
    status = mJavaVM->GetEnv((void **) &env, JNI_VERSION_1_4);
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parents: 5994
diff changeset
   364
    if(status < 0) {
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   365
        LOGE("callback_handler: failed to get JNI environment, assuming native thread");
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   366
        status = mJavaVM->AttachCurrentThread(&env, NULL);
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   367
        if(status < 0) {
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   368
            LOGE("callback_handler: failed to attach current thread");
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   369
            return;
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   370
        }
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   371
        isAttached = true;
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   372
    }
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   373
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   374
    env->CallStaticVoidMethod(mActivityClass, midAudioQuit); 
4964
6c645018741e Build the SDL library as a shared object on Android, so it will work correctly with SDL_image and SDL_ttf.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   375
4997
a21501393bef Removed code from GetPrimtiveArrayCritical() experiment
Sam Lantinga <slouken@libsdl.org>
parents: 4996
diff changeset
   376
    if (audioBuffer) {
5996
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   377
        env->DeleteGlobalRef(audioBuffer);
4997
a21501393bef Removed code from GetPrimtiveArrayCritical() experiment
Sam Lantinga <slouken@libsdl.org>
parents: 4996
diff changeset
   378
        audioBuffer = NULL;
a21501393bef Removed code from GetPrimtiveArrayCritical() experiment
Sam Lantinga <slouken@libsdl.org>
parents: 4996
diff changeset
   379
        audioBufferPinned = NULL;
a21501393bef Removed code from GetPrimtiveArrayCritical() experiment
Sam Lantinga <slouken@libsdl.org>
parents: 4996
diff changeset
   380
    }
5996
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   381
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   382
    if (isAttached) {
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   383
        mJavaVM->DetachCurrentThread();
102a9ec1ea13 Don't use a global JNIEnv across threads; it's not thread safe.
Ryan C. Gordon <icculus@icculus.org>
parents: 5994
diff changeset
   384
    }
4964
6c645018741e Build the SDL library as a shared object on Android, so it will work correctly with SDL_image and SDL_ttf.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   385
}
4981
55b82067815b Fill in the video mode with the correct screen format
Sam Lantinga <slouken@libsdl.org>
parents: 4980
diff changeset
   386
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   387
// Test for an exception and call SDL_SetError with its detail if one occurs
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   388
static bool Android_JNI_ExceptionOccurred()
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   389
{
6284
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   390
    SDL_assert(LocalReferenceHolder::IsActive());
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   391
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   392
    jthrowable exception = mEnv->ExceptionOccurred();
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   393
    if (exception != NULL) {
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   394
        jmethodID mid;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   395
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   396
        // Until this happens most JNI operations have undefined behaviour
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   397
        mEnv->ExceptionClear();
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   398
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   399
        jclass exceptionClass = mEnv->GetObjectClass(exception);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   400
        jclass classClass = mEnv->FindClass("java/lang/Class");
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   401
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   402
        mid = mEnv->GetMethodID(classClass, "getName", "()Ljava/lang/String;");
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   403
        jstring exceptionName = (jstring)mEnv->CallObjectMethod(exceptionClass, mid);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   404
        const char* exceptionNameUTF8 = mEnv->GetStringUTFChars(exceptionName, 0);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   405
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   406
        mid = mEnv->GetMethodID(exceptionClass, "getMessage", "()Ljava/lang/String;");
5860
b89f7f3bc9be Called method on wrong object in Android exception handler.
Ryan C. Gordon <icculus@icculus.org>
parents: 5650
diff changeset
   407
        jstring exceptionMessage = (jstring)mEnv->CallObjectMethod(exception, mid);
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   408
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   409
        if (exceptionMessage != NULL) {
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   410
            const char* exceptionMessageUTF8 = mEnv->GetStringUTFChars(
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   411
                    exceptionMessage, 0);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   412
            SDL_SetError("%s: %s", exceptionNameUTF8, exceptionMessageUTF8);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   413
            mEnv->ReleaseStringUTFChars(exceptionMessage, exceptionMessageUTF8);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   414
        } else {
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   415
            SDL_SetError("%s", exceptionNameUTF8);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   416
        }
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   417
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   418
        mEnv->ReleaseStringUTFChars(exceptionName, exceptionNameUTF8);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   419
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   420
        return true;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   421
    }
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   422
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   423
    return false;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   424
}
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   425
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   426
static int Android_JNI_FileOpen(SDL_RWops* ctx)
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   427
{
6284
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   428
    LocalReferenceHolder refs;
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   429
    int result = 0;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   430
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   431
    jmethodID mid;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   432
    jobject context;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   433
    jobject assetManager;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   434
    jobject inputStream;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   435
    jclass channels;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   436
    jobject readableByteChannel;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   437
    jstring fileNameJString;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   438
6284
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   439
    if (!refs.init(mEnv)) {
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   440
        goto failure;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   441
    }
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   442
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   443
    fileNameJString = (jstring)ctx->hidden.androidio.fileName;
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   444
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   445
    // context = SDLActivity.getContext();
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   446
    mid = mEnv->GetStaticMethodID(mActivityClass,
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   447
            "getContext","()Landroid/content/Context;");
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   448
    context = mEnv->CallStaticObjectMethod(mActivityClass, mid);
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   449
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   450
    // assetManager = context.getAssets();
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   451
    mid = mEnv->GetMethodID(mEnv->GetObjectClass(context),
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   452
            "getAssets", "()Landroid/content/res/AssetManager;");
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   453
    assetManager = mEnv->CallObjectMethod(context, mid);
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   454
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   455
    // inputStream = assetManager.open(<filename>);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   456
    mid = mEnv->GetMethodID(mEnv->GetObjectClass(assetManager),
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   457
            "open", "(Ljava/lang/String;)Ljava/io/InputStream;");
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   458
    inputStream = mEnv->CallObjectMethod(assetManager, mid, fileNameJString);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   459
    if (Android_JNI_ExceptionOccurred()) {
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   460
        goto failure;
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   461
    }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   462
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   463
    ctx->hidden.androidio.inputStream = inputStream;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   464
    ctx->hidden.androidio.inputStreamRef = mEnv->NewGlobalRef(inputStream);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   465
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   466
    // Despite all the visible documentation on [Asset]InputStream claiming
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   467
    // that the .available() method is not guaranteed to return the entire file
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   468
    // size, comments in <sdk>/samples/<ver>/ApiDemos/src/com/example/ ...
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   469
    // android/apis/content/ReadAsset.java imply that Android's
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   470
    // AssetInputStream.available() /will/ always return the total file size
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   471
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   472
    // size = inputStream.available();
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   473
    mid = mEnv->GetMethodID(mEnv->GetObjectClass(inputStream),
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   474
            "available", "()I");
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   475
    ctx->hidden.androidio.size = mEnv->CallIntMethod(inputStream, mid);
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   476
    if (Android_JNI_ExceptionOccurred()) {
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   477
        goto failure;
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   478
    }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   479
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   480
    // readableByteChannel = Channels.newChannel(inputStream);
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   481
    channels = mEnv->FindClass("java/nio/channels/Channels");
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   482
    mid = mEnv->GetStaticMethodID(channels,
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   483
            "newChannel",
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   484
            "(Ljava/io/InputStream;)Ljava/nio/channels/ReadableByteChannel;");
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   485
    readableByteChannel = mEnv->CallStaticObjectMethod(
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   486
            channels, mid, inputStream);
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   487
    if (Android_JNI_ExceptionOccurred()) {
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   488
        goto failure;
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   489
    }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   490
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   491
    ctx->hidden.androidio.readableByteChannel = readableByteChannel;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   492
    ctx->hidden.androidio.readableByteChannelRef =
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   493
        mEnv->NewGlobalRef(readableByteChannel);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   494
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   495
    // Store .read id for reading purposes
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   496
    mid = mEnv->GetMethodID(mEnv->GetObjectClass(readableByteChannel),
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   497
            "read", "(Ljava/nio/ByteBuffer;)I");
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   498
    ctx->hidden.androidio.readMethod = mid;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   499
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   500
    ctx->hidden.androidio.position = 0;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   501
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   502
    if (false) {
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   503
failure:
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   504
        result = -1;
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   505
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   506
        mEnv->DeleteGlobalRef((jobject)ctx->hidden.androidio.fileNameRef);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   507
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   508
        if(ctx->hidden.androidio.inputStreamRef != NULL) {
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   509
            mEnv->DeleteGlobalRef((jobject)ctx->hidden.androidio.inputStreamRef);
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   510
        }
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   511
    }
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   512
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   513
    return result;
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   514
}
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   515
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   516
extern "C" int Android_JNI_FileOpen(SDL_RWops* ctx,
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   517
        const char* fileName, const char*)
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   518
{
6284
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   519
    LocalReferenceHolder refs;
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   520
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   521
    if (!refs.init(mEnv)) {
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   522
        return -1;
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   523
    }
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   524
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   525
    if (!ctx) {
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   526
        return -1;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   527
    }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   528
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   529
    jstring fileNameJString = mEnv->NewStringUTF(fileName);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   530
    ctx->hidden.androidio.fileName = fileNameJString;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   531
    ctx->hidden.androidio.fileNameRef = mEnv->NewGlobalRef(fileNameJString);
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   532
    ctx->hidden.androidio.inputStreamRef = NULL;
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   533
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   534
    return Android_JNI_FileOpen(ctx);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   535
}
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   536
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   537
extern "C" size_t Android_JNI_FileRead(SDL_RWops* ctx, void* buffer,
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   538
        size_t size, size_t maxnum)
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   539
{
6284
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   540
    LocalReferenceHolder refs;
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   541
    int bytesRemaining = size * maxnum;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   542
    int bytesRead = 0;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   543
6284
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   544
    if (!refs.init(mEnv)) {
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   545
        return -1;
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   546
    }
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   547
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   548
    jobject readableByteChannel = (jobject)ctx->hidden.androidio.readableByteChannel;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   549
    jmethodID readMethod = (jmethodID)ctx->hidden.androidio.readMethod;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   550
    jobject byteBuffer = mEnv->NewDirectByteBuffer(buffer, bytesRemaining);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   551
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   552
    while (bytesRemaining > 0) {
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   553
        // result = readableByteChannel.read(...);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   554
        int result = mEnv->CallIntMethod(readableByteChannel, readMethod, byteBuffer);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   555
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   556
        if (Android_JNI_ExceptionOccurred()) {
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   557
            return 0;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   558
        }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   559
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   560
        if (result < 0) {
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   561
            break;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   562
        }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   563
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   564
        bytesRemaining -= result;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   565
        bytesRead += result;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   566
        ctx->hidden.androidio.position += result;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   567
    }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   568
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   569
    return bytesRead / size;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   570
}
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   571
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   572
extern "C" size_t Android_JNI_FileWrite(SDL_RWops* ctx, const void* buffer,
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   573
        size_t size, size_t num)
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   574
{
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   575
    SDL_SetError("Cannot write to Android package filesystem");
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   576
    return 0;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   577
}
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   578
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   579
static int Android_JNI_FileClose(SDL_RWops* ctx, bool release)
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   580
{
6284
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   581
    LocalReferenceHolder refs;
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   582
    int result = 0;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   583
6284
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   584
    if (!refs.init(mEnv)) {
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   585
        SDL_SetError("Failed to allocate enough JVM local references");
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   586
        return -1;
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   587
    }
1893d507ba42 Fixed bug 1417 - Android_JNI_FileClose local reference bug
Sam Lantinga <slouken@libsdl.org>
parents: 6212
diff changeset
   588
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   589
    if (ctx) {
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   590
        if (release) {
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   591
            mEnv->DeleteGlobalRef((jobject)ctx->hidden.androidio.fileNameRef);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   592
        }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   593
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   594
        jobject inputStream = (jobject)ctx->hidden.androidio.inputStream;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   595
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   596
        // inputStream.close();
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   597
        jmethodID mid = mEnv->GetMethodID(mEnv->GetObjectClass(inputStream),
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   598
                "close", "()V");
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   599
        mEnv->CallVoidMethod(inputStream, mid);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   600
        mEnv->DeleteGlobalRef((jobject)ctx->hidden.androidio.inputStreamRef);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   601
        mEnv->DeleteGlobalRef((jobject)ctx->hidden.androidio.readableByteChannelRef);
5650
640c67302f8e * Fix many memory leaks in Android FS code
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5582
diff changeset
   602
        if (Android_JNI_ExceptionOccurred()) {
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   603
            result = -1;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   604
        }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   605
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   606
        if (release) {
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   607
            SDL_FreeRW(ctx);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   608
        }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   609
    }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   610
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   611
    return result;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   612
}
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   613
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   614
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   615
extern "C" long Android_JNI_FileSeek(SDL_RWops* ctx, long offset, int whence)
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   616
{
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   617
    long newPosition;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   618
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   619
    switch (whence) {
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   620
        case RW_SEEK_SET:
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   621
            newPosition = offset;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   622
            break;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   623
        case RW_SEEK_CUR:
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   624
            newPosition = ctx->hidden.androidio.position + offset;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   625
            break;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   626
        case RW_SEEK_END:
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   627
            newPosition = ctx->hidden.androidio.size + offset;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   628
            break;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   629
        default:
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   630
            SDL_SetError("Unknown value for 'whence'");
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   631
            return -1;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   632
    }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   633
    if (newPosition < 0) {
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   634
        newPosition = 0;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   635
    }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   636
    if (newPosition > ctx->hidden.androidio.size) {
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   637
        newPosition = ctx->hidden.androidio.size;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   638
    }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   639
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   640
    long movement = newPosition - ctx->hidden.androidio.position;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   641
    jobject inputStream = (jobject)ctx->hidden.androidio.inputStream;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   642
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   643
    if (movement > 0) {
5993
c9cb52d6d864 * Android's InputStream::skip is apparently buggy, so instead read into a dummy buffer
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5982
diff changeset
   644
        unsigned char buffer[1024];
c9cb52d6d864 * Android's InputStream::skip is apparently buggy, so instead read into a dummy buffer
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5982
diff changeset
   645
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   646
        // The easy case where we're seeking forwards
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   647
        while (movement > 0) {
5994
153d15ab3032 Removed STL dependency in Android code.
Ryan C. Gordon <icculus@icculus.org>
parents: 5993
diff changeset
   648
            long amount = (long) sizeof (buffer);
153d15ab3032 Removed STL dependency in Android code.
Ryan C. Gordon <icculus@icculus.org>
parents: 5993
diff changeset
   649
            if (amount > movement) {
153d15ab3032 Removed STL dependency in Android code.
Ryan C. Gordon <icculus@icculus.org>
parents: 5993
diff changeset
   650
                amount = movement;
153d15ab3032 Removed STL dependency in Android code.
Ryan C. Gordon <icculus@icculus.org>
parents: 5993
diff changeset
   651
            }
153d15ab3032 Removed STL dependency in Android code.
Ryan C. Gordon <icculus@icculus.org>
parents: 5993
diff changeset
   652
            size_t result = Android_JNI_FileRead(ctx, buffer, 1, amount);
5993
c9cb52d6d864 * Android's InputStream::skip is apparently buggy, so instead read into a dummy buffer
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5982
diff changeset
   653
c9cb52d6d864 * Android's InputStream::skip is apparently buggy, so instead read into a dummy buffer
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5982
diff changeset
   654
            if (result <= 0) {
c9cb52d6d864 * Android's InputStream::skip is apparently buggy, so instead read into a dummy buffer
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5982
diff changeset
   655
                // Failed to read/skip the required amount, so fail
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   656
                return -1;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   657
            }
5993
c9cb52d6d864 * Android's InputStream::skip is apparently buggy, so instead read into a dummy buffer
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5982
diff changeset
   658
c9cb52d6d864 * Android's InputStream::skip is apparently buggy, so instead read into a dummy buffer
Tim Angus <tim@blackcompanystudios.co.uk>
parents: 5982
diff changeset
   659
            movement -= result;
5582
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   660
        }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   661
    } else if (movement < 0) {
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   662
        // We can't seek backwards so we have to reopen the file and seek
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   663
        // forwards which obviously isn't very efficient
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   664
        Android_JNI_FileClose(ctx, false);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   665
        Android_JNI_FileOpen(ctx);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   666
        Android_JNI_FileSeek(ctx, newPosition, RW_SEEK_SET);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   667
    }
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   668
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   669
    ctx->hidden.androidio.position = newPosition;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   670
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   671
    return ctx->hidden.androidio.position;
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   672
}
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   673
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   674
extern "C" int Android_JNI_FileClose(SDL_RWops* ctx)
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   675
{
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   676
    return Android_JNI_FileClose(ctx, true);
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   677
}
1281a3f1f0a6 Allow Android platforms to read from .apk files via the RWOPS interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   678
6044
35448a5ea044 Lots of fixes importing SDL source wholesale into a new iOS project
Sam Lantinga <slouken@libsdl.org>
parents: 5996
diff changeset
   679
#endif /* __ANDROID__ */
35448a5ea044 Lots of fixes importing SDL source wholesale into a new iOS project
Sam Lantinga <slouken@libsdl.org>
parents: 5996
diff changeset
   680
4981
55b82067815b Fill in the video mode with the correct screen format
Sam Lantinga <slouken@libsdl.org>
parents: 4980
diff changeset
   681
/* vi: set ts=4 sw=4 expandtab: */