Example usage for android.opengl GLES20 glTexParameterf

Introduction

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

Prototype

public static native void glTexParameterf(int target, int pname, float param);

Source Link

Usage

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);/* w w w . jav  a2  s  .com*/
    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

/**
 * Generate texture with standard parameters.
 *//*from w  w w .  j a  v  a2 s . c om*/
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;
}

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From source file:Main.java

/**
 * Loads a bitmap into memory then discards the bitmap.
 * @param bitmap// www .ja  v  a2 s. c  o 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;
}

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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 {/*from   w w  w  . j av a 2 s  .co 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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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   w  ww  .  ja  va 2  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 genTexture(int textureType) {
    int[] genBuf = new int[1];
    GLES20.glGenTextures(1, genBuf, 0);//from w  w  w.j a va2  s . c o m
    GLES20.glBindTexture(textureType, genBuf[0]);

    // Set texture default draw parameters
    if (textureType == GLES11Ext.GL_TEXTURE_EXTERNAL_OES) {
        GLES20.glTexParameterf(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
        GLES20.glTexParameterf(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
        GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_WRAP_S,
                GL10.GL_CLAMP_TO_EDGE);
        GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_WRAP_T,
                GL10.GL_CLAMP_TO_EDGE);

    } else {
        GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
        GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S, GL10.GL_REPEAT);
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T, GL10.GL_REPEAT);
    }

    return genBuf[0];
}

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From source file:Main.java

public static int loadTexture(final IntBuffer data, final Size size, final int usedTexId) {
    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);
        GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, size.width, size.height, 0, GLES20.GL_RGBA,
                GLES20.GL_UNSIGNED_BYTE, data);
    } else {//w  ww .j a  v a  2s . c om
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, usedTexId);
        GLES20.glTexSubImage2D(GLES20.GL_TEXTURE_2D, 0, 0, 0, size.width, size.height, GLES20.GL_RGBA,
                GLES20.GL_UNSIGNED_BYTE, data);
        textures[0] = usedTexId;
    }
    return textures[0];
}

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From source file:com.sveder.cardboardpassthrough.MainActivity.java

static private int createTexture() {
    int[] texture = new int[1];

    GLES20.glGenTextures(1, texture, 0);
    GLES20.glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture[0]);
    GLES20.glTexParameterf(GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
    GLES20.glTexParameterf(GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
    GLES20.glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_WRAP_S, GL10.GL_CLAMP_TO_EDGE);
    GLES20.glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_WRAP_T, GL10.GL_CLAMP_TO_EDGE);

    return texture[0];
}

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From source file:com.tumblr.cardboard.Tumblr3DActivity.java

/**
 * Loads a bitmap into OpenGL./*from   w w w  . j a v  a2s .c o m*/
 *
 * @param texIndex the desired texture index
 * @param bitmap   the bitmap to put into OpenGL
 */
private void loadTextureInternal(int texIndex, Bitmap bitmap, boolean recycle) {

    GLES20.glGenTextures(1, mTextureIds, texIndex);

    Log.d(TAG, "loading texture: " + texIndex + " -> " + mTextureIds[texIndex]);

    if (mTextureIds[texIndex] != INVALID_TEXTURE && bitmap != null && !bitmap.isRecycled()) {

        // Set the active texture unit
        GLES20.glActiveTexture(GLES20.GL_TEXTURE0 + texIndex);

        Matrix.setIdentityM(mImageRect[texIndex], 0);
        Matrix.scaleM(mImageRect[texIndex], 0, 1f, (float) bitmap.getHeight() / bitmap.getWidth(), 1f);

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

        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);

        // 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_LINEAR);

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

        mRectTextureIds[texIndex] = mTextureIds[texIndex];
    } else {
        Log.w(TAG, "Failed to load: " + texIndex);
    }

    if (mTextureIds[texIndex] == INVALID_TEXTURE) {
        Log.e(TAG, "Error loading texture.");
    }
}

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