Example usage for javax.microedition.khronos.egl EGL10 eglMakeCurrent

Introduction

In this page you can find the example usage for javax.microedition.khronos.egl EGL10 eglMakeCurrent.

Prototype

boolean eglMakeCurrent(EGLDisplay display, EGLSurface draw, EGLSurface read, EGLContext context);

Source Link

Usage

From source file:Main.java

private static int getOpenGLMaxTextureSizeBase() {
    // In JELLY_BEAN will collapse
    if (Build.VERSION.SDK_INT == Build.VERSION_CODES.JELLY_BEAN) {
        return 0;
    }//  ww  w  .  jav a2  s . c  o m

    EGL10 egl = (EGL10) EGLContext.getEGL();

    EGLDisplay dpy = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
    int[] vers = new int[2];
    egl.eglInitialize(dpy, vers);

    int[] configAttr = { EGL10.EGL_COLOR_BUFFER_TYPE, EGL10.EGL_RGB_BUFFER, EGL10.EGL_LEVEL, 0,
            EGL10.EGL_SURFACE_TYPE, EGL10.EGL_PBUFFER_BIT, EGL10.EGL_NONE };
    EGLConfig[] configs = new EGLConfig[1];
    int[] numConfig = new int[1];
    egl.eglChooseConfig(dpy, configAttr, configs, 1, numConfig);
    //noinspection StatementWithEmptyBody
    if (numConfig[0] == 0) {
        // TROUBLE! No config found.
    }
    EGLConfig config = configs[0];

    int[] surfAttr = new int[] { EGL10.EGL_WIDTH, 64, EGL10.EGL_HEIGHT, 64, EGL10.EGL_NONE };
    EGLSurface surf = egl.eglCreatePbufferSurface(dpy, config, surfAttr);
    final int EGL_CONTEXT_CLIENT_VERSION = 0x3098; // missing in EGL10
    int[] ctxAttrib = { EGL_CONTEXT_CLIENT_VERSION, 1, EGL10.EGL_NONE };
    EGLContext ctx = egl.eglCreateContext(dpy, config, EGL10.EGL_NO_CONTEXT, ctxAttrib);
    egl.eglMakeCurrent(dpy, surf, surf, ctx);
    int[] maxSize = new int[1];
    GLES10.glGetIntegerv(GLES10.GL_MAX_TEXTURE_SIZE, maxSize, 0);

    egl.eglMakeCurrent(dpy, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT);
    egl.eglDestroySurface(dpy, surf);
    egl.eglDestroyContext(dpy, ctx);
    egl.eglTerminate(dpy);

    return maxSize[0];
}

---

From source file:uk.co.armedpineapple.cth.SDLActivity.java

public static boolean createEGLSurface() {
    if (SDLActivity.mEGLDisplay != null && SDLActivity.mEGLConfig != null) {
        EGL10 egl = (EGL10) EGLContext.getEGL();
        if (SDLActivity.mEGLContext == null)
            createEGLContext();/*from  ww  w.  ja va  2s  .  c o m*/

        Log.v("SDL", "Creating new EGL Surface");
        EGLSurface surface = egl.eglCreateWindowSurface(SDLActivity.mEGLDisplay, SDLActivity.mEGLConfig,
                SDLActivity.mSurface, null);
        if (surface == EGL10.EGL_NO_SURFACE) {
            Log.e("SDL", "Couldn't create surface");
            return false;
        }

        if (!egl.eglMakeCurrent(SDLActivity.mEGLDisplay, surface, surface, SDLActivity.mEGLContext)) {
            Log.e("SDL", "Old EGL Context doesnt work, trying with a new one");
            createEGLContext();
            if (!egl.eglMakeCurrent(SDLActivity.mEGLDisplay, surface, surface, SDLActivity.mEGLContext)) {
                Log.e("SDL", "Failed making EGL Context current");
                return false;
            }
        }
        SDLActivity.mEGLSurface = surface;
        return true;
    }
    return false;
}

---

From source file:Main.java

@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
private static int getMaxTextureEgl10() {
    EGL10 egl = (EGL10) javax.microedition.khronos.egl.EGLContext.getEGL();

    javax.microedition.khronos.egl.EGLDisplay dpy = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
    int[] vers = new int[2];
    egl.eglInitialize(dpy, vers);//ww w. j ava  2  s  .c  om

    int[] configAttr = { EGL10.EGL_COLOR_BUFFER_TYPE, EGL10.EGL_RGB_BUFFER, EGL10.EGL_LEVEL, 0,
            EGL10.EGL_SURFACE_TYPE, EGL10.EGL_PBUFFER_BIT, EGL10.EGL_NONE };
    javax.microedition.khronos.egl.EGLConfig[] configs = new javax.microedition.khronos.egl.EGLConfig[1];
    int[] numConfig = new int[1];
    egl.eglChooseConfig(dpy, configAttr, configs, 1, numConfig);
    if (numConfig[0] == 0) {
        return 0;
    }
    javax.microedition.khronos.egl.EGLConfig config = configs[0];

    int[] surfAttr = { EGL10.EGL_WIDTH, 64, EGL10.EGL_HEIGHT, 64, EGL10.EGL_NONE };
    javax.microedition.khronos.egl.EGLSurface surf = egl.eglCreatePbufferSurface(dpy, config, surfAttr);
    final int EGL_CONTEXT_CLIENT_VERSION = 0x3098; // missing in EGL10
    int[] ctxAttribute = { EGL_CONTEXT_CLIENT_VERSION, 1, EGL10.EGL_NONE };
    javax.microedition.khronos.egl.EGLContext ctx = egl.eglCreateContext(dpy, config, EGL10.EGL_NO_CONTEXT,
            ctxAttribute);
    egl.eglMakeCurrent(dpy, surf, surf, ctx);
    int[] maxSize = new int[1];
    GLES10.glGetIntegerv(GLES10.GL_MAX_TEXTURE_SIZE, maxSize, 0);
    egl.eglMakeCurrent(dpy, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT);
    egl.eglDestroySurface(dpy, surf);
    egl.eglDestroyContext(dpy, ctx);
    egl.eglTerminate(dpy);

    return maxSize[0];
}

---