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 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 w  w .ja  va  2s . c  o m*/
        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];
}

---

From source file:com.aimfire.gallery.cardboard.PhotoActivity.java

public void loadTexture(Bitmap bitmap, int textureHandle) {
    if (textureHandle != 0) {
        // Bind to the texture in OpenGL
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureHandle);
        GlUtil.checkGlError("loadTexture: 1");

        // 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);
        GlUtil.checkGlError("loadTexture: 2");

        // opengl es 2.0 doesn't support clamp_to_border. so we manually added a
        // border when we process the images. and set wrap mode to clamp_to_edge
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);
        GlUtil.checkGlError("loadTexture: 3");

        // Load the bitmap into the bound texture.
        GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bitmap, 0);
        GlUtil.checkGlError("loadTexture: 4");

        // Recycle the bitmap, since its data has been loaded into OpenGL.
        //if(bitmap != null)
        //bitmap.recycle();
    } else {//from   w  w w .jav a 2  s.c om
        throw new RuntimeException("Error loading texture.");
    }
}

---

From source file:eu.sathra.SathraActivity.java

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
    if (mParams.width == 0 && mParams.height == 0) {
        mParams.width = width;/*from  www .  jav  a2  s .c o  m*/
        mParams.height = height;
    } else if (mParams.width == 0) {
        float screenRatio = width / (float) height;
        mParams.width = (int) (mParams.height * screenRatio);
    } else if (mParams.height == 0) {
        float screenRatio = height / (float) width;
        mParams.height = (int) (mParams.width * screenRatio);
    }

    gl.glViewport(0, 0, width, height);// mParams.width, mParams.height);

    Log.debug(String.format(SURFACE_CREATE_MSG_FORMAT, width, height, mParams.width, mParams.height));

    if (!mWasInitiated) {
        GLES20.glGenFramebuffers(1, buf, 0);
        GLES20.glGenTextures(1, tex, 0);
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, tex[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);
        IntBuffer tmp = ByteBuffer.allocateDirect(mParams.width * mParams.height * 4)
                .order(ByteOrder.nativeOrder()).asIntBuffer();
        GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, mParams.width, mParams.height, 0,
                GLES20.GL_RGBA, GLES20.GL_UNSIGNED_SHORT_4_4_4_4, tmp);

        shad = new Sprite(new Texture(tex[0], mParams.width, mParams.height));
        shad.setPivot(0.5f, 0.5f);

        onEngineInitiated();

        mWasInitiated = true;
    }
}

---

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

/**
 * Loads a bitmap into OpenGL./* w  ww.  j  a v a 2  s .  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.");
    }
}

---

• «
• 1
• 2
• »