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

Introduction

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

Prototype

boolean eglGetConfigAttrib(EGLDisplay display, EGLConfig config, int attribute, int[] value);

Source Link

Usage

From source file:Main.java

/**
 * Calls getEGLConfigAttrib and returns the value for the specified attribute.
 * @param egl//w  w  w  .  j  a va  2s  .  c  om
 * @param eglDisplay
 * @param config
 * @param configAttrib
 * @return
 */
public static int getEGLConfigAttrib(EGL10 egl, EGLDisplay eglDisplay, EGLConfig config, int configAttrib) {
    int[] attribs = new int[1];
    egl.eglGetConfigAttrib(eglDisplay, config, configAttrib, attribs);
    return attribs[0];
}

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From source file:Main.java

/**
 * Wrapper for EGL10.eglGetConfigAttrib() with a fallback value just
 * in case the function fails./*from ww  w  .  j  a v a  2 s  .  co m*/
 */
static int getConfigAttrib(EGL10 egl, EGLDisplay display, EGLConfig config, int attribute, int defaultValue) {
    int[] mValue = new int[1];
    return egl.eglGetConfigAttrib(display, config, attribute, mValue) ? mValue[0] : defaultValue;
}

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From source file:Main.java

public static int getMaximumTextureSize() {
    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];
        }/*  www.j  av  a2 s . com*/
    }
    egl.eglTerminate(display);

    return maximumTextureSize;
}

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From source file:Main.java

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];
    }//from  ww  w  .  j a v  a  2  s.  co m

    // Release
    egl.eglTerminate(display);

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

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From source file:Main.java

/**
 * 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.
 *//*from w w  w  .  jav a 2  s.  c o  m*/
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;
    }
}

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