Java EGL10.EGL_WIDTH屬性代碼示例

private void eglSetup(int width, int height) {
    mEGL = (EGL10) EGLContext.getEGL();
    mEGLDisplay = mEGL.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);

    if (mEGLDisplay == EGL10.EGL_NO_DISPLAY) {
        throw new RuntimeException("unable to get EGL10 display");
    }

    if (!mEGL.eglInitialize(mEGLDisplay, null)) {
        mEGLDisplay = null;
        throw new RuntimeException("unable to initialize EGL10");
    }

    int[] attribList = {
            EGL10.EGL_RED_SIZE, 8,
            EGL10.EGL_GREEN_SIZE, 8,
            EGL10.EGL_BLUE_SIZE, 8,
            EGL10.EGL_ALPHA_SIZE, 8,
            EGL10.EGL_SURFACE_TYPE, EGL10.EGL_PBUFFER_BIT,
            EGL10.EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
            EGL10.EGL_NONE
    };
    EGLConfig[] configs = new EGLConfig[1];
    int[] numConfigs = new int[1];
    if (!mEGL.eglChooseConfig(mEGLDisplay, attribList, configs, configs.length, numConfigs)) {
        throw new RuntimeException("unable to find RGB888+pbuffer EGL config");
    }
    int[] attrib_list = {
            EGL_CONTEXT_CLIENT_VERSION, 2,
            EGL10.EGL_NONE
    };
    mEGLContext = mEGL.eglCreateContext(mEGLDisplay, configs[0], EGL10.EGL_NO_CONTEXT, attrib_list);
    checkEglError("eglCreateContext");
    if (mEGLContext == null) {
        throw new RuntimeException("null context");
    }
    int[] surfaceAttribs = {
            EGL10.EGL_WIDTH, width,
            EGL10.EGL_HEIGHT, height,
            EGL10.EGL_NONE
    };
    mEGLSurface = mEGL.eglCreatePbufferSurface(mEGLDisplay, configs[0], surfaceAttribs);
    checkEglError("eglCreatePbufferSurface");
    if (mEGLSurface == null) {
        throw new RuntimeException("surface was null");
    }
}
 

@Override
public void createPbufferSurface(int width, int height) {
  checkIsNotReleased();
  if (eglSurface != EGL10.EGL_NO_SURFACE) {
    throw new RuntimeException("Already has an EGLSurface");
  }
  int[] surfaceAttribs = {EGL10.EGL_WIDTH, width, EGL10.EGL_HEIGHT, height, EGL10.EGL_NONE};
  eglSurface = egl.eglCreatePbufferSurface(eglDisplay, eglConfig, surfaceAttribs);
  if (eglSurface == EGL10.EGL_NO_SURFACE) {
    throw new RuntimeException("Failed to create pixel buffer surface with size " + width + "x"
        + height + ": 0x" + Integer.toHexString(egl.eglGetError()));
  }
}
 

public ImageEglSurface(final int width, final int height) {
    mWidth = width;
    mHeight = height;

    int[] version = new int[2];
    int[] surfaceAttribList = {
            EGL10.EGL_WIDTH, width, EGL10.EGL_HEIGHT, height, EGL10.EGL_NONE
    };

    mEGL = (EGL10) EGLContext.getEGL();
    mEGLDisplay = mEGL.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
    if (mEGLDisplay == EGL10.EGL_NO_DISPLAY) {
        throw new RuntimeException("unable to get EGL10 display");
    }

    if (!mEGL.eglInitialize(mEGLDisplay, version)) {
        mEGLDisplay = null;
        throw new RuntimeException("unable to initialize EGL14");
    }

    mEGLConfig = getConfig();
    if (mEGLConfig == null) {
        throw new RuntimeException("Unable to find a suitable EGLConfig");
    }
    int[] attribList = {
            EGL_CONTEXT_CLIENT_VERSION /*EGL14.EGL_CONTEXT_CLIENT_VERSION*/, 2, EGL14.EGL_NONE
    };
    mEGLContext = mEGL.eglCreateContext(mEGLDisplay, mEGLConfig, EGL_NO_CONTEXT, attribList);
    mEGLSurface = mEGL.eglCreatePbufferSurface(mEGLDisplay, mEGLConfig, surfaceAttribList);
    mEGL.eglMakeCurrent(mEGLDisplay, mEGLSurface, mEGLSurface, mEGLContext);
    mGL = (GL10) mEGLContext.getGL();
}
 

@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);

    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[] ctxAttrib = {
            EGL_CONTEXT_CLIENT_VERSION, 1,
            EGL10.EGL_NONE
    };
    javax.microedition.khronos.egl.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];
}