Example usage for android.opengl GLES20 GL_TEXTURE_MIN_FILTER

Introduction

In this page you can find the example usage for android.opengl GLES20 GL_TEXTURE_MIN_FILTER.

Prototype

int GL_TEXTURE_MIN_FILTER

To view the source code for android.opengl GLES20 GL_TEXTURE_MIN_FILTER.

Click Source Link

Usage

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();// w w  w  .  j  a  v  a 2s.  c om

    return texturenames[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   w  w  w  .j  a v  a2  s  .  c  om*/
    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 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();// w w  w  .  j a  v  a  2  s.  co m
}

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From source file:Main.java

public static int createOESTextureID() {
    final int[] tex = new int[1];
    GLES20.glGenTextures(1, tex, 0);//from   www.j  a v a  2s.  c o  m
    GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, tex[0]);
    GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_S,
            GLES20.GL_CLAMP_TO_EDGE);
    GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_T,
            GLES20.GL_CLAMP_TO_EDGE);
    GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_NEAREST);
    GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_NEAREST);

    return tex[0];
}

---

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  ww  .  j  a va 2  s  .  c o  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];
}

---

From source file:Main.java

/**
 * Generate texture with standard parameters.
 */// w  w w  .  ja v a2 s .co  m
public static int generateTexture(int target) {
    final int textureArray[] = new int[1];
    GLES20.glGenTextures(1, textureArray, 0);
    final int textureId = textureArray[0];
    GLES20.glBindTexture(target, textureId);
    GLES20.glTexParameterf(target, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
    GLES20.glTexParameterf(target, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
    GLES20.glTexParameterf(target, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
    GLES20.glTexParameterf(target, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);
    checkNoGLES2Error("generateTexture");
    return textureId;
}

---

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   w w w  .ja v a2s. c  o m
    }

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

    return textureHandle[0];
}

---

From source file:Main.java

/**
 * Loads a bitmap into memory then discards the bitmap.
 * @param bitmap/*w w w.ja va  2s  . co m*/
 * @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;
}

---

From source file:Main.java

public static int loadTexture(Bitmap bitmap) {
    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_LINEAR);
        GLES20.glTexParameteri(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); // Set U Wrapping
        GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE); // Set V Wrapping

        // 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  .  j  a va2 s.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

public static int loadTexture(final Bitmap img, final int usedTexId, final boolean recycle) {
    int textures[] = new int[1];
    if (usedTexId == NO_TEXTURE) {
        GLES20.glGenTextures(1, textures, 0);
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textures[0]);
        GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
        GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_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, img, 0);
    } else {/* w  w  w. j a  v a  2s .c o  m*/
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, usedTexId);
        GLUtils.texSubImage2D(GLES20.GL_TEXTURE_2D, 0, 0, 0, img);
        textures[0] = usedTexId;
    }
    if (recycle) {
        img.recycle();
    }
    return textures[0];
}

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