Java EGL10.eglTerminate方法代码示例

import javax.microedition.khronos.egl.EGL10; //导入方法依赖的package包/类
public static int getMaxTextureSize() {
  final int IMAGE_MAX_BITMAP_DIMENSION = 2048;

  EGL10 egl = (EGL10) EGLContext.getEGL();
  EGLDisplay display = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);

  int[] version = new int[2];
  egl.eglInitialize(display, version);

  int[] totalConfigurations = new int[1];
  egl.eglGetConfigs(display, null, 0, totalConfigurations);

  EGLConfig[] configurationsList = new EGLConfig[totalConfigurations[0]];
  egl.eglGetConfigs(display, configurationsList, totalConfigurations[0], totalConfigurations);

  int[] textureSize = new int[1];
  int maximumTextureSize = 0;

  for (int i = 0; i < totalConfigurations[0]; i++) {
    egl.eglGetConfigAttrib(display, configurationsList[i], EGL10.EGL_MAX_PBUFFER_WIDTH, textureSize);

    if (maximumTextureSize < textureSize[0])
      maximumTextureSize = textureSize[0];
  }

  egl.eglTerminate(display);

  return Math.max(maximumTextureSize, IMAGE_MAX_BITMAP_DIMENSION);
}
 

import javax.microedition.khronos.egl.EGL10; //导入方法依赖的package包/类
public static int getMaxTextureSize() {
    // Safe minimum default size
    final int IMAGE_MAX_BITMAP_DIMENSION = 2048;

    // Get EGL Display
    EGL10 egl = (EGL10) EGLContext.getEGL();
    EGLDisplay display = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);

    // Initialise
    int[] version = new int[2];
    egl.eglInitialize(display, version);

    // Query total number of configurations
    int[] totalConfigurations = new int[1];
    egl.eglGetConfigs(display, null, 0, totalConfigurations);

    // Query actual list configurations
    EGLConfig[] configurationsList = new EGLConfig[totalConfigurations[0]];
    egl.eglGetConfigs(display, configurationsList, totalConfigurations[0], totalConfigurations);

    int[] textureSize = new int[1];
    int maximumTextureSize = 0;

    // Iterate through all the configurations to located the maximum texture size
    for (int i = 0; i < totalConfigurations[0]; i++) {
        // Only need to check for width since opengl textures are always squared
        egl.eglGetConfigAttrib(display, configurationsList[i], EGL10.EGL_MAX_PBUFFER_WIDTH, textureSize);

        // Keep track of the maximum texture size
        if (maximumTextureSize < textureSize[0])
            maximumTextureSize = textureSize[0];
    }

    // Release
    egl.eglTerminate(display);

    // Return largest texture size found, or default
    return Math.max(maximumTextureSize, IMAGE_MAX_BITMAP_DIMENSION);
}
 

import javax.microedition.khronos.egl.EGL10; //导入方法依赖的package包/类
/**
 * clear data from surface using opengl
 */
private void clearSurface(Object texture) {
  EGL10 egl = (EGL10) EGLContext.getEGL();
  EGLDisplay display = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
  egl.eglInitialize(display, null);

  int[] attribList = {
      EGL10.EGL_RED_SIZE, 8, EGL10.EGL_GREEN_SIZE, 8, EGL10.EGL_BLUE_SIZE, 8,
      EGL10.EGL_ALPHA_SIZE, 8, EGL10.EGL_RENDERABLE_TYPE, EGL10.EGL_WINDOW_BIT, EGL10.EGL_NONE, 0,
      // placeholder for recordable [@-3]
      EGL10.EGL_NONE
  };
  EGLConfig[] configs = new EGLConfig[1];
  int[] numConfigs = new int[1];
  egl.eglChooseConfig(display, attribList, configs, configs.length, numConfigs);
  EGLConfig config = configs[0];
  EGLContext context = egl.eglCreateContext(display, config, EGL10.EGL_NO_CONTEXT, new int[] {
      12440, 2, EGL10.EGL_NONE
  });
  EGLSurface eglSurface = egl.eglCreateWindowSurface(display, config, texture, new int[] {
      EGL10.EGL_NONE
  });

  egl.eglMakeCurrent(display, eglSurface, eglSurface, context);
  GLES20.glClearColor(0, 0, 0, 1);
  GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
  egl.eglSwapBuffers(display, eglSurface);
  egl.eglDestroySurface(display, eglSurface);
  egl.eglMakeCurrent(display, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT);
  egl.eglDestroyContext(display, context);
  egl.eglTerminate(display);
}
 

import javax.microedition.khronos.egl.EGL10; //导入方法依赖的package包/类
/**
 * Get the max size of bitmap allowed to be rendered on the device.<br>
 * http://stackoverflow.com/questions/7428996/hw-accelerated-activity-how-to-get-opengl-texture-size-limit.
 */
private static int getMaxTextureSize() {
    // Safe minimum default size
    final int IMAGE_MAX_BITMAP_DIMENSION = 2048;

    try {
        // Get EGL Display
        EGL10 egl = (EGL10) EGLContext.getEGL();
        EGLDisplay display = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);

        // Initialise
        int[] version = new int[2];
        egl.eglInitialize(display, version);

        // Query total number of configurations
        int[] totalConfigurations = new int[1];
        egl.eglGetConfigs(display, null, 0, totalConfigurations);

        // Query actual list configurations
        EGLConfig[] configurationsList = new EGLConfig[totalConfigurations[0]];
        egl.eglGetConfigs(display, configurationsList, totalConfigurations[0], totalConfigurations);

        int[] textureSize = new int[1];
        int maximumTextureSize = 0;

        // Iterate through all the configurations to located the maximum texture size
        for (int i = 0; i < totalConfigurations[0]; i++) {
            // Only need to check for width since opengl textures are always squared
            egl.eglGetConfigAttrib(display, configurationsList[i], EGL10.EGL_MAX_PBUFFER_WIDTH, textureSize);

            // Keep track of the maximum texture size
            if (maximumTextureSize < textureSize[0]) {
                maximumTextureSize = textureSize[0];
            }
        }

        // Release
        egl.eglTerminate(display);

        // Return largest texture size found, or default
        return Math.max(maximumTextureSize, IMAGE_MAX_BITMAP_DIMENSION);
    } catch (Exception e) {
        return IMAGE_MAX_BITMAP_DIMENSION;
    }
}
 

import javax.microedition.khronos.egl.EGL10; //导入方法依赖的package包/类
@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];
}
 

import javax.microedition.khronos.egl.EGL10; //导入方法依赖的package包/类
/**
 * Get the max size of bitmap allowed to be rendered on the device.<br>
 * http://stackoverflow.com/questions/7428996/hw-accelerated-activity-how-to-get-opengl-texture-size-limit.
 */
private static int getMaxTextureSize() {
  // Safe minimum default size
  final int IMAGE_MAX_BITMAP_DIMENSION = 2048;

  try {
    // Get EGL Display
    EGL10 egl = (EGL10) EGLContext.getEGL();
    EGLDisplay display = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);

    // Initialise
    int[] version = new int[2];
    egl.eglInitialize(display, version);

    // Query total number of configurations
    int[] totalConfigurations = new int[1];
    egl.eglGetConfigs(display, null, 0, totalConfigurations);

    // Query actual list configurations
    EGLConfig[] configurationsList = new EGLConfig[totalConfigurations[0]];
    egl.eglGetConfigs(display, configurationsList, totalConfigurations[0], totalConfigurations);

    int[] textureSize = new int[1];
    int maximumTextureSize = 0;

    // Iterate through all the configurations to located the maximum texture size
    for (int i = 0; i < totalConfigurations[0]; i++) {
      // Only need to check for width since opengl textures are always squared
      egl.eglGetConfigAttrib(
          display, configurationsList[i], EGL10.EGL_MAX_PBUFFER_WIDTH, textureSize);

      // Keep track of the maximum texture size
      if (maximumTextureSize < textureSize[0]) {
        maximumTextureSize = textureSize[0];
      }
    }

    // Release
    egl.eglTerminate(display);

    // Return largest texture size found, or default
    return Math.max(maximumTextureSize, IMAGE_MAX_BITMAP_DIMENSION);
  } catch (Exception e) {
    return IMAGE_MAX_BITMAP_DIMENSION;
  }
}