Example usage for android.opengl GLUtils texImage2D

Introduction

In this page you can find the example usage for android.opengl GLUtils texImage2D.

Prototype

public static void texImage2D(int target, int level, Bitmap bitmap, int border) 

Source Link

Document

A version of texImage2D that determines the internalFormat and type automatically.

Usage

From source file:Main.java

public static void initTexture(Resources res, BitmapFactory.Options opts, int resource, int handle) {
    Bitmap bmp = BitmapFactory.decodeResource(res, resource, opts);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, handle);
    GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bmp, 0);
    GLES20.glGenerateMipmap(GLES20.GL_TEXTURE_2D);
    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR_MIPMAP_LINEAR);
    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
    bmp.recycle();//from   ww w. j a  v  a  2  s. c  o m
}

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From source file:Main.java

public static int setTexture(Bitmap bitmap) {
    GLES20.glGenTextures(1, texturenames, 0);

    GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texturenames[0]);

    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);

    GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bitmap, 0);
    bitmap.recycle();/*from w w w .j a v  a  2 s  . co  m*/

    return texturenames[0];
}

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From source file:Main.java

public static int loadTexture(String s) {
    Bitmap img;//from ww  w  .j ava 2s .c  o  m
    try {
        img = BitmapFactory.decodeStream(context.getAssets().open(s));
    } catch (IOException e) {
        return 0;
    }
    int tex[] = new int[1];
    GLES20.glGenTextures(1, tex, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, tex[0]);
    GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, img, 0);
    GLES20.glGenerateMipmap(GLES20.GL_TEXTURE_2D);
    GLES20.glTexParameteri(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR_MIPMAP_LINEAR);
    GLES20.glTexParameteri(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
    GLES20.glTexParameteri(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S, GL10.GL_CLAMP_TO_EDGE);
    GLES20.glTexParameteri(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T, GL10.GL_CLAMP_TO_EDGE);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
    img.recycle();
    return tex[0];
}

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From source file:Main.java

public static int loadTexture(String s) {
    Bitmap img;/*  w w  w. j  ava 2  s  . com*/
    try {
        img = BitmapFactory.decodeStream(context.getAssets().open(s));
    } catch (IOException e) {
        return -1;
    }
    int tex[] = new int[1];
    GLES20.glGenTextures(1, tex, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, tex[0]);
    GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, img, 0);
    GLES20.glGenerateMipmap(GLES20.GL_TEXTURE_2D);
    GLES20.glTexParameteri(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR_MIPMAP_LINEAR);
    GLES20.glTexParameteri(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
    GLES20.glTexParameteri(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S, GL10.GL_CLAMP_TO_EDGE);
    GLES20.glTexParameteri(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T, GL10.GL_CLAMP_TO_EDGE);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
    img.recycle();
    return tex[0];
}

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From source file:Main.java

public static int loadTextureFromResource(Context context, int resId) {
    final int textureHandle[] = new int[1];

    GLES20.glGenTextures(1, textureHandle, 0);
    if (textureHandle[0] != 0) {
        final BitmapFactory.Options op = new BitmapFactory.Options();
        op.inScaled = false;//from  w  w  w  .  j  a  va2  s. co  m
        final Bitmap bmp = BitmapFactory.decodeResource(context.getResources(), resId, op);

        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureHandle[0]);

        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_NEAREST);
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_NEAREST);

        GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bmp, 0);
    } else {
        throw new RuntimeException("Error Loading Texture");
    }

    return textureHandle[0];
}

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From source file:Main.java

public static void loadTexture(final Context context, int resId, GL10 gl, int[] textures) {

    Bitmap bmp = BitmapFactory.decodeResource(context.getResources(), resId);

    gl.glGenTextures(1, textures, 0);/*from   www. j a v a  2 s  .  c  o m*/
    gl.glBindTexture(GLES20.GL_TEXTURE_2D, textures[0]);

    GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_NEAREST);
    GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);

    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_REPEAT);
    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_REPEAT);

    GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bmp, 0);
    bmp.recycle();

}

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From source file:Main.java

public static int loadTexture(final Context context, final int resourceId) {
    final int[] textureHandle = new int[1];

    GLES20.glGenTextures(1, textureHandle, 0);

    if (textureHandle[0] != 0) {
        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inScaled = false; // No pre-scaling

        // Read in the resource
        final Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), resourceId, options);

        // Bind to the texture in OpenGL
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureHandle[0]);

        // Set filtering
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_NEAREST);
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_NEAREST);

        // Load the bitmap into the bound texture.
        GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bitmap, 0);

        // Recycle the bitmap, since its data has been loaded into OpenGL.
        bitmap.recycle();//from  ww w.ja va 2s  .c o  m
    }

    if (textureHandle[0] == 0) {
        throw new RuntimeException("Error loading texture.");
    }

    return textureHandle[0];
}

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From source file:Main.java

/**
 * Loads the texture with the given id.//from   w  w  w. jav a  2  s  .c o  m
 *
 * @param context    the application's context
 * @param resourceId the id of the texture
 * @return the texture handle
 */
public static int loadTexture(final Context context, final int resourceId) {
    final int[] textureHandle = new int[1];

    if (!cachedTextureHandles.containsKey(resourceId)) {
        GLES20.glGenTextures(1, textureHandle, 0);

        if (textureHandle[0] != 0) {
            final BitmapFactory.Options options = new BitmapFactory.Options();
            options.inScaled = false; // Pre scaling off

            final Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), resourceId);

            GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureHandle[0]);
            GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_REPEAT);
            GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_REPEAT);

            GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bitmap, 0);

            bitmap.recycle();

            if (textureHandle[0] == 0) {
                throw new RuntimeException("Error loading texture.");
            }

            cachedTextureHandles.put(resourceId, textureHandle[0]);
        }
    }
    return cachedTextureHandles.get(resourceId);
}

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From source file:Main.java

/**
 * Loads a bitmap into memory then discards the bitmap.
 * @param bitmap// w  w  w .j  ava2s .  c om
 * @param oldHandle   Handle to use.
 * @return
 */
public static int loadBitmap(Bitmap bitmap, int oldHandle, boolean recycle) {
    int h;

    int handle[] = new int[1];
    GLES20.glGenTextures(1, handle, 0);
    h = handle[0];
    //      
    //      if(oldHandle <= 0) {
    //         int handle[] = new int[1];
    //         GLES20.glGenTextures(1, handle, 0);
    //         h = handle[0];
    //      } else {
    //         h = oldHandle;
    //      }

    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, h);

    GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_NEAREST);
    GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);

    GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
    GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);

    GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bitmap, 0);

    if (recycle)
        bitmap.recycle();

    return h;
}

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From source file:Main.java

protected static int bindTexture(Bitmap bitmap) {
    int[] textures = new int[1];
    glGenTextures(1, textures, 0);/*from  www. j ava 2s  . c  o m*/
    glBindTexture(GL_TEXTURE_2D, textures[0]);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
    GLUtils.texImage2D(GL_TEXTURE_2D, 0, bitmap, 0);
    glGenerateMipmap(GL_TEXTURE_2D);
    glBindTexture(GL_TEXTURE_2D, 0);
    return textures[0];
}

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