--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/project_files/Android-build/SDL-android-project/jni/SDL/src/core/android/SDL_android.cpp Thu Jun 23 21:57:53 2011 +0200
@@ -0,0 +1,263 @@
+/*
+ SDL - Simple DirectMedia Layer
+ Copyright (C) 1997-2011 Sam Lantinga
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+ Sam Lantinga
+ slouken@libsdl.org
+*/
+#include "SDL_config.h"
+#include "SDL_stdinc.h"
+
+#include "SDL_android.h"
+
+extern "C" {
+#include "../../events/SDL_events_c.h"
+#include "../../video/android/SDL_androidkeyboard.h"
+#include "../../video/android/SDL_androidtouch.h"
+#include "../../video/android/SDL_androidvideo.h"
+
+/* Impelemented in audio/android/SDL_androidaudio.c */
+extern void Android_RunAudioThread();
+} // C
+
+/*******************************************************************************
+ This file links the Java side of Android with libsdl
+*******************************************************************************/
+#include <jni.h>
+#include <android/log.h>
+
+
+/*******************************************************************************
+ Globals
+*******************************************************************************/
+static JNIEnv* mEnv = NULL;
+static JNIEnv* mAudioEnv = NULL;
+
+// Main activity
+static jclass mActivityClass;
+
+// method signatures
+static jmethodID midCreateGLContext;
+static jmethodID midFlipBuffers;
+static jmethodID midAudioInit;
+static jmethodID midAudioWriteShortBuffer;
+static jmethodID midAudioWriteByteBuffer;
+static jmethodID midAudioQuit;
+
+// Accelerometer data storage
+static float fLastAccelerometer[3];
+
+
+/*******************************************************************************
+ Functions called by JNI
+*******************************************************************************/
+
+// Library init
+extern "C" jint JNI_OnLoad(JavaVM* vm, void* reserved)
+{
+ return JNI_VERSION_1_4;
+}
+
+// Called before SDL_main() to initialize JNI bindings
+extern "C" void SDL_Android_Init(JNIEnv* env, jclass cls)
+{
+ __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL_Android_Init()");
+
+ mEnv = env;
+ mActivityClass = cls;
+
+ midCreateGLContext = mEnv->GetStaticMethodID(mActivityClass,
+ "createGLContext","(II)Z");
+ midFlipBuffers = mEnv->GetStaticMethodID(mActivityClass,
+ "flipBuffers","()V");
+ midAudioInit = mEnv->GetStaticMethodID(mActivityClass,
+ "audioInit", "(IZZI)Ljava/lang/Object;");
+ midAudioWriteShortBuffer = mEnv->GetStaticMethodID(mActivityClass,
+ "audioWriteShortBuffer", "([S)V");
+ midAudioWriteByteBuffer = mEnv->GetStaticMethodID(mActivityClass,
+ "audioWriteByteBuffer", "([B)V");
+ midAudioQuit = mEnv->GetStaticMethodID(mActivityClass,
+ "audioQuit", "()V");
+
+ if(!midCreateGLContext || !midFlipBuffers || !midAudioInit ||
+ !midAudioWriteShortBuffer || !midAudioWriteByteBuffer || !midAudioQuit) {
+ __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL: Couldn't locate Java callbacks, check that they're named and typed correctly");
+ }
+}
+
+// Resize
+extern "C" void Java_org_hedgewars_SDLActivity_onNativeResize(
+ JNIEnv* env, jclass jcls,
+ jint width, jint height, jint format)
+{
+ Android_SetScreenResolution(width, height, format);
+}
+
+// Keydown
+extern "C" void Java_org_hedgewars_SDLActivity_onNativeKeyDown(
+ JNIEnv* env, jclass jcls, jint keycode)
+{
+ Android_OnKeyDown(keycode);
+}
+
+// Keyup
+extern "C" void Java_org_hedgewars_SDLActivity_onNativeKeyUp(
+ JNIEnv* env, jclass jcls, jint keycode)
+{
+ Android_OnKeyUp(keycode);
+}
+
+// Touch
+extern "C" void Java_org_hedgewars_SDLActivity_onNativeTouch(
+ JNIEnv* env, jclass jcls,
+ jint action, jfloat x, jfloat y, jfloat p)
+{
+ Android_OnTouch(action, x, y, p);
+}
+
+// Accelerometer
+extern "C" void Java_org_hedgewars_SDLActivity_onNativeAccel(
+ JNIEnv* env, jclass jcls,
+ jfloat x, jfloat y, jfloat z)
+{
+ fLastAccelerometer[0] = x;
+ fLastAccelerometer[1] = y;
+ fLastAccelerometer[2] = z;
+}
+
+// Quit
+extern "C" void Java_org_hedgewars_SDLActivity_nativeQuit(
+ JNIEnv* env, jclass cls)
+{
+ // Inject a SDL_QUIT event
+ SDL_SendQuit();
+}
+
+extern "C" void Java_org_hedgewars_SDLActivity_nativeRunAudioThread(
+ JNIEnv* env, jclass cls)
+{
+ /* This is the audio thread, with a different environment */
+ mAudioEnv = env;
+
+ Android_RunAudioThread();
+}
+
+
+/*******************************************************************************
+ Functions called by SDL into Java
+*******************************************************************************/
+extern "C" SDL_bool Android_JNI_CreateContext(int majorVersion, int minorVersion)
+{
+ if (mEnv->CallStaticBooleanMethod(mActivityClass, midCreateGLContext, majorVersion, minorVersion)) {
+ return SDL_TRUE;
+ } else {
+ return SDL_FALSE;
+ }
+}
+
+extern "C" void Android_JNI_SwapWindow()
+{
+ mEnv->CallStaticVoidMethod(mActivityClass, midFlipBuffers);
+}
+
+extern "C" void Android_JNI_SetActivityTitle(const char *title)
+{
+ jmethodID mid;
+
+ mid = mEnv->GetStaticMethodID(mActivityClass,"setActivityTitle","(Ljava/lang/String;)V");
+ if (mid) {
+ mEnv->CallStaticVoidMethod(mActivityClass, mid, mEnv->NewStringUTF(title));
+ }
+}
+
+extern "C" void Android_JNI_GetAccelerometerValues(float values[3])
+{
+ int i;
+ for (i = 0; i < 3; ++i) {
+ values[i] = fLastAccelerometer[i];
+ }
+}
+
+//
+// Audio support
+//
+static jboolean audioBuffer16Bit = JNI_FALSE;
+static jboolean audioBufferStereo = JNI_FALSE;
+static jobject audioBuffer = NULL;
+static void* audioBufferPinned = NULL;
+
+extern "C" int Android_JNI_OpenAudioDevice(int sampleRate, int is16Bit, int channelCount, int desiredBufferFrames)
+{
+ int audioBufferFrames;
+
+ __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "SDL audio: opening device");
+ audioBuffer16Bit = is16Bit;
+ audioBufferStereo = channelCount > 1;
+
+ audioBuffer = mEnv->CallStaticObjectMethod(mActivityClass, midAudioInit, sampleRate, audioBuffer16Bit, audioBufferStereo, desiredBufferFrames);
+
+ if (audioBuffer == NULL) {
+ __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: didn't get back a good audio buffer!");
+ return 0;
+ }
+ audioBuffer = mEnv->NewGlobalRef(audioBuffer);
+
+ jboolean isCopy = JNI_FALSE;
+ if (audioBuffer16Bit) {
+ audioBufferPinned = mEnv->GetShortArrayElements((jshortArray)audioBuffer, &isCopy);
+ audioBufferFrames = mEnv->GetArrayLength((jshortArray)audioBuffer);
+ } else {
+ audioBufferPinned = mEnv->GetByteArrayElements((jbyteArray)audioBuffer, &isCopy);
+ audioBufferFrames = mEnv->GetArrayLength((jbyteArray)audioBuffer);
+ }
+ if (audioBufferStereo) {
+ audioBufferFrames /= 2;
+ }
+
+ return audioBufferFrames;
+}
+
+extern "C" void * Android_JNI_GetAudioBuffer()
+{
+ return audioBufferPinned;
+}
+
+extern "C" void Android_JNI_WriteAudioBuffer()
+{
+ if (audioBuffer16Bit) {
+ mAudioEnv->ReleaseShortArrayElements((jshortArray)audioBuffer, (jshort *)audioBufferPinned, JNI_COMMIT);
+ mAudioEnv->CallStaticVoidMethod(mActivityClass, midAudioWriteShortBuffer, (jshortArray)audioBuffer);
+ } else {
+ mAudioEnv->ReleaseByteArrayElements((jbyteArray)audioBuffer, (jbyte *)audioBufferPinned, JNI_COMMIT);
+ mAudioEnv->CallStaticVoidMethod(mActivityClass, midAudioWriteByteBuffer, (jbyteArray)audioBuffer);
+ }
+
+ /* JNI_COMMIT means the changes are committed to the VM but the buffer remains pinned */
+}
+
+extern "C" void Android_JNI_CloseAudioDevice()
+{
+ mEnv->CallStaticVoidMethod(mActivityClass, midAudioQuit);
+
+ if (audioBuffer) {
+ mEnv->DeleteGlobalRef(audioBuffer);
+ audioBuffer = NULL;
+ audioBufferPinned = NULL;
+ }
+}
+
+/* vi: set ts=4 sw=4 expandtab: */