c4droid exemple jni.cpp native metod
//BEGIN_INCLUDE(all)
#include <jni.h>
#include <errno.h>
#include <math.h>
#include <EGL/egl.h>
#include <GLES/gl.h>
#include <android/sensor.h>
#include <android_native_app_glue.h>
#include <stdlib.h>
extern int main();
class UserBase{
public:
virtual int OnFrame()=0;
virtual void OnEvent (int,float,float,float)=0;
};
struct engine {
//
struct android_app* app;
ASensorManager* sensorManager;
const ASensor* accelerometerSensor;
ASensorEventQueue* sensorEventQueue;
// EGL
EGLDisplay display;
EGLSurface surface;
EGLContext context;
int32_t width;
int32_t height;
// GLES
float fovy , zNear , zFar ;
// user
int animating;
int mode;
//
UserBase* user;
};
//GLUES
static void __gluMakeIdentityf(GLfloat m[16])
{
m[0+4*0] = 1; m[0+4*1] = 0; m[0+4*2] = 0; m[0+4*3] = 0;
m[1+4*0] = 0; m[1+4*1] = 1; m[1+4*2] = 0; m[1+4*3] = 0;
m[2+4*0] = 0; m[2+4*1] = 0; m[2+4*2] = 1; m[2+4*3] = 0;
m[3+4*0] = 0; m[3+4*1] = 0; m[3+4*2] = 0; m[3+4*3] = 1;
}
#define __glPi 3.14159265358979323846
void gluPerspectivef(GLfloat fovy, GLfloat aspect, GLfloat zNear, GLfloat zFar)
{
GLfloat m[4][4];
GLfloat sine, cotangent, deltaZ;
GLfloat radians=(GLfloat)(fovy/2.0f*__glPi/180.0f);
deltaZ=zFar-zNear;
sine=(GLfloat)sin(radians);
if ((deltaZ==0.0f) || (sine==0.0f) || (aspect==0.0f))
{
return;
}
cotangent=(GLfloat)(cos(radians)/sine);
__gluMakeIdentityf(&m[0][0]);
m[0][0] = cotangent / aspect;
m[1][1] = cotangent;
m[2][2] = -(zFar + zNear) / deltaZ;
m[2][3] = -1.0f;
m[3][2] = -2.0f * zNear * zFar / deltaZ;
m[3][3] = 0;
glMultMatrixf(&m[0][0]);
}
#undef __glPi
static int engine_init_window(struct engine* engine) {
// initialize OpenGL ES and EGL
const EGLint attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_BLUE_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_RED_SIZE, 8,
EGL_DEPTH_SIZE, 8,
EGL_NONE };
EGLint w, h, dummy, format;
EGLint numConfigs;
EGLConfig config;
EGLSurface surface;
EGLContext context;
EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
eglInitialize(display, 0, 0);
eglChooseConfig(display, attribs, &config, 1, &numConfigs);
eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &format);
ANativeWindow_setBuffersGeometry(engine->app->window, 0, 0, format);
surface = eglCreateWindowSurface(display, config, engine->app->window, NULL);
context = eglCreateContext(display, config, NULL, NULL);
if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE) return -1;
eglQuerySurface(display, surface, EGL_WIDTH, &w);
eglQuerySurface(display, surface, EGL_HEIGHT, &h);
engine->display = display;
engine->context = context;
engine->surface = surface;
engine->width = w;
engine->height = h;
engine->fovy = 45.0f;
engine->zNear = 1.0f;
engine->zFar = 100.0f;
engine->animating = 1;
return 1;
}
static void engine_window_resize(struct engine* engine)
{
glMatrixMode(GL_PROJECTION); // project matrix
glLoadIdentity();
glViewport(0, 0, engine->width, engine->height); // view port
if(engine->mode) gluPerspectivef(engine->fovy , 1.0f * engine->width / engine->height, engine->zNear , engine->zFar);
else glOrthof(0,engine->width,0, engine->height,-engine->zFar, engine->zFar);
glMatrixMode(GL_MODELVIEW); // modelview matrix
glLoadIdentity();
}
static void engine_init_egl(struct engine* engine) {
// Initialize GL state.
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepthf(1.0f);
glEnableClientState(GL_VERTEX_ARRAY);
glShadeModel(GL_FLAT);
}
/**
* Tear down the EGL context currently associated with the display.
*/
static void engine_term_egl(struct engine* engine) {
if(engine->app){ engine->user->OnEvent(3,0,0,0); if (engine->display != EGL_NO_DISPLAY) {
eglMakeCurrent(engine->display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (engine->context != EGL_NO_CONTEXT) {
eglDestroyContext(engine->display, engine->context);
}
if (engine->surface != EGL_NO_SURFACE) {
eglDestroySurface(engine->display, engine->surface);
}
eglTerminate(engine->display);
}
engine->animating = 0;
engine->display = EGL_NO_DISPLAY;
engine->context = EGL_NO_CONTEXT;
engine->surface = EGL_NO_SURFACE;
engine->app = 0;
// engine->user = 0;
}
}
static void engine_draw_frame(struct engine* engine) {
if (engine->display != NULL && engine->animating != 0 && engine->user->OnFrame())
eglSwapBuffers(engine->display, engine->surface);
}
/**
* Process the next input event.
*/
static int32_t engine_handle_input(struct android_app* app, AInputEvent* event) {
struct engine* engine = (struct engine*)app->userData;
if (AInputEvent_getType(event) == AINPUT_EVENT_TYPE_MOTION) {
engine->user->OnEvent(0, AMotionEvent_getX(event, 0), AMotionEvent_getY(event, 0), 0);
return 1;
}
return 0;
}
/**
* Process the next main command.
*/
static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
struct engine* engine = (struct engine*)app->userData;
switch (cmd) {
/*
case APP_CMD_SAVE_STATE:
// The system has asked us to save our current state. Do so.
engine->app->savedState = malloc(sizeof(struct saved_state));
*((struct saved_state*)engine->app->savedState) = engine->state;
engine->app->savedStateSize = sizeof(struct saved_state);
break;
*/
case APP_CMD_INIT_WINDOW:
// The window is being shown, get it ready.
if (engine->app->window != NULL) {
int rt = engine_init_window(engine);
if(rt < 0) exit(0);
engine->user->OnEvent(2,engine->width,engine->height,0); engine_window_resize(engine);
engine_init_egl(engine);
// glVertexPointer(3, GL_FLOAT, 0, box);
engine_draw_frame(engine);
}
break;
case APP_CMD_TERM_WINDOW:
// The window is being hidden or closed, clean it up.
engine_term_egl(engine);
break;
case APP_CMD_GAINED_FOCUS:
// When our app gains focus, we start monitoring the accelerometer.
if (engine->accelerometerSensor != NULL) {
ASensorEventQueue_enableSensor(engine->sensorEventQueue,
engine->accelerometerSensor);
// We'd like to get 60 events per second (in us).
ASensorEventQueue_setEventRate(engine->sensorEventQueue,
engine->accelerometerSensor, (1000L/60)*1000);
engine->user->OnEvent(4,0,0,0);
}
break;
case APP_CMD_LOST_FOCUS:
// When our app loses focus, we stop monitoring the accelerometer.
// This is to avoid consuming battery while not being used.
if (engine->accelerometerSensor != NULL) {
ASensorEventQueue_disableSensor(engine->sensorEventQueue,
engine->accelerometerSensor);
}
// Also stop animating.
engine->animating = 0;
engine->user->OnEvent(5,0,0,0); //wengine_draw_frame(engine);
break;
}
}
struct engine* __gAppEngine;
void android_main(struct android_app* state) {
struct engine engine;
__gAppEngine = &engine;
memset(&engine, 0, sizeof(engine));
if( main() < 0 ) exit(-1);
app_dummy();
state->userData = &engine;
state->onAppCmd = engine_handle_cmd;
state->onInputEvent = engine_handle_input;
engine.app = state;
engine.sensorManager = ASensorManager_getInstance();
engine.accelerometerSensor = ASensorManager_getDefaultSensor(engine.sensorManager,
ASENSOR_TYPE_ACCELEROMETER);
engine.sensorEventQueue = ASensorManager_createEventQueue(engine.sensorManager,
state->looper, LOOPER_ID_USER, NULL, NULL);
while (1) {
int ident, events;
struct android_poll_source* source;
while ((ident=ALooper_pollAll(engine.animating ? 0 : -1, NULL, &events,
(void**)&source)) >= 0) {
if (source != NULL)
source->process(state, source);
if (ident == LOOPER_ID_USER) {
if (engine.accelerometerSensor != NULL) {
ASensorEvent event;
while (ASensorEventQueue_getEvents(engine.sensorEventQueue,
&event, 1) > 0)
engine.user->OnEvent(1, event.acceleration.x, event.acceleration.y,event.acceleration.z);
}
}
if (state->destroyRequested != 0) {
engine_term_egl(&engine);
return;
}
}
engine_draw_frame(&engine);
}
}
/* *jjjjjj* */
void engine_window_run(){}
void SetUser(UserBase* in)
{
if ( in != NULL)
__gAppEngine->user = in;
}
void SetMode(int mode = 0){
__gAppEngine->mode = mode;
if(__gAppEngine->display)
engine_window_resize( __gAppEngine);
}
inline int GetWidth(){
return __gAppEngine->width;
}
inline int GetHeight(){
return __gAppEngine->height;
}
inline int GetMode(){
return __gAppEngine->mode;
}
enum { WIN_TOUCH = 0 ,WIN_SENSOR,WIN_INIT,WIN_QUIT, WIN_FOCUS,WIN_LOST };
//END_INCLUDE(all)
#include <stdio.h>
void log(const char* buf){
static int f = 0;
FILE* fp = fopen("/sdcard/jni.log",f?"a+":"w+");
fputs(buf,fp);
fclose(fp); f=1;
}
class MyApp : public UserBase{
public:
int OnFrame(){
static float t = 0;
t += 0.1f;
if(t > 1) t = 0;
glClearColor(t, t, 1.0f, 0.0f);
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
return 1;
}
void OnEvent(int event,float x, float y, float z){
const char* msg[] = { "WIN_TOUCH", "WIN_SENSOR","WIN_INIT","WIN_QUIT", "WIN_FOCUS","WIN_LOST"};
char buf[1024];
sprintf(buf,"%s:%.f %.f %.f\n\r",msg[event],x,y,z);
log(buf);
}
};
int main(){
SetUser(new MyApp);
engine_window_run();
return 0;
}
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