android.opengl.GLES20#glFramebufferTexture2D

Source File: GlUtil.java From PLDroidShortVideo with Apache License 2.0

6 votes

public static void createFBO(int[] fboTex, int[] fboId, int width, int height) {
//generate fbo id
        GLES20.glGenFramebuffers(1, fboId, 0);
//generate texture
        GLES20.glGenTextures(1, fboTex, 0);

//Bind Frame buffer
        GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, fboId[0]);
//Bind texture
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, fboTex[0]);
//Define texture parameters
        GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
        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);
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
//Attach texture FBO color attachment
        GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, fboTex[0], 0);
//we are done, reset
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
        GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
    }

Source File: Framebuffer.java From Spectaculum with Apache License 2.0

6 votes

public Framebuffer(int width, int height) {
    int[] framebuffer = new int[1];
    GLES20.glGenFramebuffers(1, framebuffer, 0);
    mFramebuffer = framebuffer[0];

    /* Every framebuffer has its own texture attached, because switching between framebuffers
     * is faster and recommended against switching texture attachements of a single framebuffer.
     * http://stackoverflow.com/a/6435997
     * http://stackoverflow.com/a/6767452 (comments!)
     */
    mTargetTexture = Texture2D.generateFloatTexture(width, height);

    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, mFramebuffer);
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0,
            GLES20.GL_TEXTURE_2D, mTargetTexture.getHandle(), 0);

    checkFramebufferStatus();
}

Source File: CameraFBORender.java From AudioVideoCodec with Apache License 2.0

5 votes

/**
 * 创建fbo
 *
 * @param w
 * @param h
 */
private void createFBO(int w, int h) {
    //1. 创建FBO
    int[] fbos = new int[1];
    GLES20.glGenFramebuffers(1, fbos, 0);
    fboId = fbos[0];
    //2. 绑定FBO
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, fboId);

    //3. 创建FBO纹理
    int[] textureIds = new int[1];
    //创建纹理
    GLES20.glGenTextures(1, textureIds, 0);
    fboTextureId = textureIds[0];
    //绑定纹理
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, fboTextureId);
    //环绕（超出纹理坐标范围）  （s==x t==y GL_REPEAT 重复）
    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);
    //过滤（纹理像素映射到坐标点）  （缩小、放大：GL_LINEAR线性）
    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);

    //4. 把纹理绑定到FBO
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0,
            GLES20.GL_TEXTURE_2D, fboTextureId, 0);

    //5. 设置FBO分配内存大小
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, w, h,
            0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);

    //6. 检测是否绑定成功
    if (GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER)
            != GLES20.GL_FRAMEBUFFER_COMPLETE) {
        Log.d(TAG, "createFBO: 纹理绑定FBO失败");
    }
    //7. 解绑纹理和FBO
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
}

Source File: GLES20Canvas.java From TurboLauncher with Apache License 2.0

5 votes

private void setRenderTarget(BasicTexture oldTexture, RawTexture texture) {
    if (oldTexture == null && texture != null) {
        GLES20.glGenFramebuffers(1, mFrameBuffer, 0);
        checkError();
        GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, mFrameBuffer[0]);
        checkError();
    } else if (oldTexture != null && texture == null) {
        GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
        checkError();
        GLES20.glDeleteFramebuffers(1, mFrameBuffer, 0);
        checkError();
    }

    if (texture == null) {
        setSize(mScreenWidth, mScreenHeight);
    } else {
        setSize(texture.getWidth(), texture.getHeight());

        if (!texture.isLoaded()) {
            texture.prepare(this);
        }

        GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0,
                texture.getTarget(), texture.getId(), 0);
        checkError();

        checkFramebufferStatus();
    }
}

Source File: CameraGLRendererBase.java From Image-Detection-Samples with Apache License 2.0

5 votes

private void initFBO(int width, int height)
{
    Log.d(LOGTAG, "initFBO("+width+"x"+height+")");

    deleteFBO();

    GLES20.glGenTextures(1, texDraw, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texDraw[0]);
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
    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);
    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);

    GLES20.glGenTextures(1, texFBO, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texFBO[0]);
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
    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);
    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);

    //int hFBO;
    GLES20.glGenFramebuffers(1, FBO, 0);
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, FBO[0]);
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, texFBO[0], 0);
    Log.d(LOGTAG, "initFBO error status: " + GLES20.glGetError());

    int FBOstatus = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
    if (FBOstatus != GLES20.GL_FRAMEBUFFER_COMPLETE)
        Log.e(LOGTAG, "initFBO failed, status: " + FBOstatus);

    mFBOWidth  = width;
    mFBOHeight = height;
}

Source File: CameraGLRendererBase.java From FaceDetectDemo with Apache License 2.0

5 votes

private void initFBO(int width, int height)
{
    Log.d(LOGTAG, "initFBO("+width+"x"+height+")");

    deleteFBO();

    GLES20.glGenTextures(1, texDraw, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texDraw[0]);
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
    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);
    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);

    GLES20.glGenTextures(1, texFBO, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texFBO[0]);
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
    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);
    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);

    //int hFBO;
    GLES20.glGenFramebuffers(1, FBO, 0);
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, FBO[0]);
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, texFBO[0], 0);
    Log.d(LOGTAG, "initFBO error status: " + GLES20.glGetError());

    int FBOstatus = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
    if (FBOstatus != GLES20.GL_FRAMEBUFFER_COMPLETE)
        Log.e(LOGTAG, "initFBO failed, status: " + FBOstatus);

    mFBOWidth  = width;
    mFBOHeight = height;
}

Source File: CameraGLRendererBase.java From faceswap with Apache License 2.0

5 votes

private void initFBO(int width, int height)
{
    Log.d(LOGTAG, "initFBO("+width+"x"+height+")");

    deleteFBO();

    GLES20.glGenTextures(1, texDraw, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texDraw[0]);
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
    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);
    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);

    GLES20.glGenTextures(1, texFBO, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texFBO[0]);
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
    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);
    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);

    //int hFBO;
    GLES20.glGenFramebuffers(1, FBO, 0);
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, FBO[0]);
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, texFBO[0], 0);
    Log.d(LOGTAG, "initFBO error status: " + GLES20.glGetError());

    int FBOstatus = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
    if (FBOstatus != GLES20.GL_FRAMEBUFFER_COMPLETE)
        Log.e(LOGTAG, "initFBO failed, status: " + FBOstatus);

    mFBOWidth  = width;
    mFBOHeight = height;
}

Source File: CameraGLRendererBase.java From MOAAP with MIT License

5 votes

private void initFBO(int width, int height)
{
    Log.d(LOGTAG, "initFBO("+width+"x"+height+")");

    deleteFBO();

    GLES20.glGenTextures(1, texDraw, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texDraw[0]);
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
    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);
    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);

    GLES20.glGenTextures(1, texFBO, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texFBO[0]);
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
    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);
    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);

    //int hFBO;
    GLES20.glGenFramebuffers(1, FBO, 0);
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, FBO[0]);
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, texFBO[0], 0);
    Log.d(LOGTAG, "initFBO error status: " + GLES20.glGetError());

    int FBOstatus = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
    if (FBOstatus != GLES20.GL_FRAMEBUFFER_COMPLETE)
        Log.e(LOGTAG, "initFBO failed, status: " + FBOstatus);

    mFBOWidth  = width;
    mFBOHeight = height;
}

Source File: GLES20Canvas.java From Trebuchet with GNU General Public License v3.0

5 votes

private void setRenderTarget(BasicTexture oldTexture, RawTexture texture) {
    if (oldTexture == null && texture != null) {
        GLES20.glGenFramebuffers(1, mFrameBuffer, 0);
        checkError();
        GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, mFrameBuffer[0]);
        checkError();
    } else if (oldTexture != null && texture == null) {
        GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
        checkError();
        GLES20.glDeleteFramebuffers(1, mFrameBuffer, 0);
        checkError();
    }

    if (texture == null) {
        setSize(mScreenWidth, mScreenHeight);
    } else {
        setSize(texture.getWidth(), texture.getHeight());

        if (!texture.isLoaded()) {
            texture.prepare(this);
        }

        GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0,
                texture.getTarget(), texture.getId(), 0);
        checkError();

        checkFramebufferStatus();
    }
}

Source File: GlTextureFrameBuffer.java From sealrtc-android with MIT License

4 votes

/**
 * (Re)allocate texture. Will do nothing if the requested size equals the current size. An
 * EGLContext must be bound on the current thread when calling this function. Must be called at
 * least once before using the framebuffer. May be called multiple times to change size.
 */
public void setSize(int width, int height) {
    if (width == 0 || height == 0) {
        throw new IllegalArgumentException("Invalid size: " + width + "x" + height);
    }
    if (width == this.width && height == this.height) {
        return;
    }
    this.width = width;
    this.height = height;

    // Allocate texture.
    GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureId);
    GLES20.glTexImage2D(
            GLES20.GL_TEXTURE_2D,
            0,
            pixelFormat,
            width,
            height,
            0,
            pixelFormat,
            GLES20.GL_UNSIGNED_BYTE,
            null);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
    GlUtil.checkNoGLES2Error("GlTextureFrameBuffer setSize");

    // Attach the texture to the framebuffer as color attachment.
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, frameBufferId);
    GLES20.glFramebufferTexture2D(
            GLES20.GL_FRAMEBUFFER,
            GLES20.GL_COLOR_ATTACHMENT0,
            GLES20.GL_TEXTURE_2D,
            textureId,
            0);

    // Check that the framebuffer is in a good state.
    final int status = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
    if (status != GLES20.GL_FRAMEBUFFER_COMPLETE) {
        throw new IllegalStateException("Framebuffer not complete, status: " + status);
    }

    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
}

Source File: RecordFBOActivity.java From grafika with Apache License 2.0

4 votes

/**
 * Prepares the off-screen framebuffer.
 */
private void prepareFramebuffer(int width, int height) {
    GlUtil.checkGlError("prepareFramebuffer start");

    int[] values = new int[1];

    // Create a texture object and bind it.  This will be the color buffer.
    GLES20.glGenTextures(1, values, 0);
    GlUtil.checkGlError("glGenTextures");
    mOffscreenTexture = values[0];   // expected > 0
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mOffscreenTexture);
    GlUtil.checkGlError("glBindTexture " + mOffscreenTexture);

    // Create texture storage.
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0,
            GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);

    // Set parameters.  We're probably using non-power-of-two dimensions, so
    // some values may not be available for use.
    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_CLAMP_TO_EDGE);
    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T,
            GLES20.GL_CLAMP_TO_EDGE);
    GlUtil.checkGlError("glTexParameter");

    // Create framebuffer object and bind it.
    GLES20.glGenFramebuffers(1, values, 0);
    GlUtil.checkGlError("glGenFramebuffers");
    mFramebuffer = values[0];    // expected > 0
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, mFramebuffer);
    GlUtil.checkGlError("glBindFramebuffer " + mFramebuffer);

    // Create a depth buffer and bind it.
    GLES20.glGenRenderbuffers(1, values, 0);
    GlUtil.checkGlError("glGenRenderbuffers");
    mDepthBuffer = values[0];    // expected > 0
    GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, mDepthBuffer);
    GlUtil.checkGlError("glBindRenderbuffer " + mDepthBuffer);

    // Allocate storage for the depth buffer.
    GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16,
            width, height);
    GlUtil.checkGlError("glRenderbufferStorage");

    // Attach the depth buffer and the texture (color buffer) to the framebuffer object.
    GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT,
            GLES20.GL_RENDERBUFFER, mDepthBuffer);
    GlUtil.checkGlError("glFramebufferRenderbuffer");
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0,
            GLES20.GL_TEXTURE_2D, mOffscreenTexture, 0);
    GlUtil.checkGlError("glFramebufferTexture2D");

    // See if GLES is happy with all this.
    int status = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
    if (status != GLES20.GL_FRAMEBUFFER_COMPLETE) {
        throw new RuntimeException("Framebuffer not complete, status=" + status);
    }

    // Switch back to the default framebuffer.
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);

    GlUtil.checkGlError("prepareFramebuffer done");
}

Source File: PhotoFilterView.java From TelePlus-Android with GNU General Public License v2.0

4 votes

private void drawCustomParamsPass() {
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, renderFrameBuffer[1]);
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, renderTexture[1], 0);
    GLES20.glClear(0);

    GLES20.glUseProgram(toolsShaderProgram);
    GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, renderTexture[0]);
    GLES20.glUniform1i(sourceImageHandle, 0);
    if (showOriginal) {
        GLES20.glUniform1f(shadowsHandle, 1);
        GLES20.glUniform1f(highlightsHandle, 1);
        GLES20.glUniform1f(exposureHandle, 0);
        GLES20.glUniform1f(contrastHandle, 1);
        GLES20.glUniform1f(saturationHandle, 1);
        GLES20.glUniform1f(warmthHandle, 0);
        GLES20.glUniform1f(vignetteHandle, 0);
        GLES20.glUniform1f(grainHandle, 0);
        GLES20.glUniform1f(fadeAmountHandle, 0);
        GLES20.glUniform3f(highlightsTintColorHandle, 0, 0, 0);
        GLES20.glUniform1f(highlightsTintIntensityHandle, 0);
        GLES20.glUniform3f(shadowsTintColorHandle, 0, 0, 0);
        GLES20.glUniform1f(shadowsTintIntensityHandle, 0);
        GLES20.glUniform1f(skipToneHandle, 1);
    } else {
        GLES20.glUniform1f(shadowsHandle, getShadowsValue());
        GLES20.glUniform1f(highlightsHandle, getHighlightsValue());
        GLES20.glUniform1f(exposureHandle, getExposureValue());
        GLES20.glUniform1f(contrastHandle, getContrastValue());
        GLES20.glUniform1f(saturationHandle, getSaturationValue());
        GLES20.glUniform1f(warmthHandle, getWarmthValue());
        GLES20.glUniform1f(vignetteHandle, getVignetteValue());
        GLES20.glUniform1f(grainHandle, getGrainValue());
        GLES20.glUniform1f(fadeAmountHandle, getFadeValue());
        GLES20.glUniform3f(highlightsTintColorHandle, (tintHighlightsColor >> 16 & 0xff) / 255.0f, (tintHighlightsColor >> 8 & 0xff) / 255.0f, (tintHighlightsColor & 0xff) / 255.0f);
        GLES20.glUniform1f(highlightsTintIntensityHandle, getTintHighlightsIntensityValue());
        GLES20.glUniform3f(shadowsTintColorHandle, (tintShadowsColor >> 16 & 0xff) / 255.0f, (tintShadowsColor >> 8 & 0xff) / 255.0f, (tintShadowsColor & 0xff) / 255.0f);
        GLES20.glUniform1f(shadowsTintIntensityHandle, getTintShadowsIntensityValue());
        boolean skipTone = curvesToolValue.shouldBeSkipped();
        GLES20.glUniform1f(skipToneHandle, skipTone ? 1.0f : 0.0f);
        if (!skipTone) {
            curvesToolValue.fillBuffer();
            GLES20.glActiveTexture(GLES20.GL_TEXTURE1);
            GLES20.glBindTexture(GL10.GL_TEXTURE_2D, curveTextures[0]);
            GLES20.glTexParameteri(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_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.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, 200, 1, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, curvesToolValue.curveBuffer);
            GLES20.glUniform1i(curvesImageHandle, 1);
        }
    }

    GLES20.glUniform1f(widthHandle, renderBufferWidth);
    GLES20.glUniform1f(heightHandle, renderBufferHeight);
    GLES20.glEnableVertexAttribArray(inputTexCoordHandle);
    GLES20.glVertexAttribPointer(inputTexCoordHandle, 2, GLES20.GL_FLOAT, false, 8, textureBuffer);
    GLES20.glEnableVertexAttribArray(positionHandle);
    GLES20.glVertexAttribPointer(positionHandle, 2, GLES20.GL_FLOAT, false, 8, vertexInvertBuffer);
    GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
}

Source File: FboTexture.java From PhotoMovie with Apache License 2.0

4 votes

private void prepareFrameBuffer(int width, int height) {
    GlUtil.checkGlError("prepareFramebuffer start");

    int[] values = new int[1];

    // Create a texture object and bind it.  This will be the color buffer.
    GLES20.glGenTextures(1, values, 0);
    GlUtil.checkGlError("glGenTextures");
    int offscreenTexture = values[0];   // expected > 0
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, offscreenTexture);
    GlUtil.checkGlError("glBindTexture " + offscreenTexture);

    // Create texture storage.
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0,
            GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);

    // Set parameters.  We're probably using non-power-of-two dimensions, so
    // some values may not be available for use.
    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_CLAMP_TO_EDGE);
    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T,
            GLES20.GL_CLAMP_TO_EDGE);
    GlUtil.checkGlError("glTexParameter");

    // Create framebuffer object and bind it.
    GLES20.glGenFramebuffers(1, values, 0);
    GlUtil.checkGlError("glGenFramebuffers");
    int framebuffer = values[0];    // expected > 0
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, framebuffer);
    GlUtil.checkGlError("glBindFramebuffer " + framebuffer);

    // Create a depth buffer and bind it.
    GLES20.glGenRenderbuffers(1, values, 0);
    GlUtil.checkGlError("glGenRenderbuffers");
    mRenderBuffer = values[0];    // expected > 0
    GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, mRenderBuffer);
    GlUtil.checkGlError("glBindRenderbuffer " + mRenderBuffer);

    // Allocate storage for the depth buffer.
    GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16,
            width, height);
    GlUtil.checkGlError("glRenderbufferStorage");

    // Attach the depth buffer and the texture (color buffer) to the framebuffer object.
    GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT,
            GLES20.GL_RENDERBUFFER, mRenderBuffer);
    GlUtil.checkGlError("glFramebufferRenderbuffer");
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0,
            GLES20.GL_TEXTURE_2D, offscreenTexture, 0);
    GlUtil.checkGlError("glFramebufferTexture2D");

    // See if GLES is happy with all this.
    int status = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
    if (status != GLES20.GL_FRAMEBUFFER_COMPLETE) {
        throw new RuntimeException("Framebuffer not complete, status=" + status);
    }

    // Switch back to the default framebuffer.
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);

    GlUtil.checkGlError("prepareFramebuffer done");
    mFrameBuffer = framebuffer;
    mId = offscreenTexture;
}

Source File: Framebuffer.java From PD-classes with GNU General Public License v3.0

4 votes

public void attach( int point, Texture tex ) {
	bind();
	GLES20.glFramebufferTexture2D( GLES20.GL_FRAMEBUFFER, point, GLES20.GL_TEXTURE_2D, tex.id, 0 );
}

Source File: FBORender.java From EZFilter with MIT License

4 votes

private void initFBO() {
    // 初始化输出纹理
    if (mTextureOut != null) {
        GLES20.glDeleteTextures(1, mTextureOut, 0);
        mTextureOut = null;
    }
    mTextureOut = new int[1];
    GLES20.glGenTextures(1, mTextureOut, 0);
    GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureOut[0]);

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

    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA,
            getWidth(), getHeight(), 0, GLES20.GL_RGBA,
            GLES20.GL_UNSIGNED_BYTE, null);

    // 初始化帧缓冲和深度缓冲
    if (mFrameBuffer != null) {
        GLES20.glDeleteFramebuffers(1, mFrameBuffer, 0);
        mFrameBuffer = null;
    }
    if (mDepthRenderBuffer != null) {
        GLES20.glDeleteRenderbuffers(1, mDepthRenderBuffer, 0);
        mDepthRenderBuffer = null;
    }
    mFrameBuffer = new int[1];
    mDepthRenderBuffer = new int[1];
    GLES20.glGenFramebuffers(1, mFrameBuffer, 0);
    GLES20.glGenRenderbuffers(1, mDepthRenderBuffer, 0);
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, mFrameBuffer[0]);
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER,
            GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D,
            mTextureOut[0], 0);
    GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, mDepthRenderBuffer[0]);
    GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER,
            GLES20.GL_DEPTH_COMPONENT16, getWidth(), getHeight());
    GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER,
            GLES20.GL_DEPTH_ATTACHMENT, GLES20.GL_RENDERBUFFER,
            mDepthRenderBuffer[0]);
}

Source File: FrameBuffer.java From media-for-mobile with Apache License 2.0

4 votes

@Override
public void setResolution(Resolution res) {
    resolution = res;
    if (framebuffer != -1) {
        release();
    }
    int[] glValues = new int[1];

    GLES20.glGenTextures(1, glValues, 0);
    utils.checkEglError("glGenTextures");
    offScreenTexture = glValues[0];

    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, offScreenTexture);
    utils.checkEglError("glBindTexture");

    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, res.width(), res.height(), 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
    utils.checkEglError("glTexImage2D");

    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_CLAMP_TO_EDGE);
    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);

    GLES20.glGenFramebuffers(1, glValues, 0);
    utils.checkEglError("glGenFramebuffers");

    framebuffer = glValues[0];

    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, framebuffer);
    utils.checkEglError("glBindFramebuffer");

    GLES20.glGenRenderbuffers(1, glValues, 0);
    utils.checkEglError("glGenRenderbuffers");
    depthBuffer = glValues[0];

    GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, depthBuffer);
    utils.checkEglError("glBindRenderbuffer");

    GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16, res.width(), res.height());
    utils.checkEglError("glRenderbufferStorage");

    GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT, GLES20.GL_RENDERBUFFER, depthBuffer);
    utils.checkEglError("glFramebufferRenderbuffer");

    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, offScreenTexture, 0);
    utils.checkEglError("glFramebufferTexture2D");

    int status = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
    utils.checkEglError("glCheckFramebufferStatus");



    if (status != GLES20.GL_FRAMEBUFFER_COMPLETE) {
        throw new RuntimeException("Incomplete framebuffer. Status: " + status);
    }

    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
    utils.checkEglError("glBindFramebuffer(0)");
}

Source File: Painting.java From Telegram-FOSS with GNU General Public License v2.0

4 votes

public PaintingData getPaintingData(RectF rect, boolean undo) {
    int minX = (int) rect.left;
    int minY = (int) rect.top;
    int width = (int) rect.width();
    int height = (int) rect.height();

    GLES20.glGenFramebuffers(1, buffers, 0);
    int framebuffer = buffers[0];
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, framebuffer);

    GLES20.glGenTextures(1, buffers, 0);
    int texture = buffers[0];

    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texture);
    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.glTexParameteri(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
    GLES20.glTexParameteri(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_NEAREST);
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);

    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, texture, 0);

    GLES20.glViewport(0, 0, (int) size.width, (int) size.height);

    if (shaders == null) {
        return null;
    }
    Shader shader = shaders.get(undo ? "nonPremultipliedBlit" : "blit");
    if (shader == null) {
        return null;
    }
    GLES20.glUseProgram(shader.program);

    Matrix translate = new Matrix();
    translate.preTranslate(-minX, -minY);
    float[] effective = GLMatrix.LoadGraphicsMatrix(translate);
    float[] finalProjection = GLMatrix.MultiplyMat4f(projection, effective);

    GLES20.glUniformMatrix4fv(shader.getUniform("mvpMatrix"), 1, false, FloatBuffer.wrap(finalProjection));

    GLES20.glUniform1i(shader.getUniform("texture"), 0);

    GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, getTexture());

    GLES20.glClearColor(0, 0, 0, 0);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);

    GLES20.glBlendFunc(GLES20.GL_ONE, GLES20.GL_ZERO);

    GLES20.glVertexAttribPointer(0, 2, GLES20.GL_FLOAT, false, 8, vertexBuffer);
    GLES20.glEnableVertexAttribArray(0);
    GLES20.glVertexAttribPointer(1, 2, GLES20.GL_FLOAT, false, 8, textureBuffer);
    GLES20.glEnableVertexAttribArray(1);

    GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);

    dataBuffer.limit(width * height * 4);
    GLES20.glReadPixels(0, 0, width, height, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, dataBuffer);

    PaintingData data;
    if (undo) {
        data = new PaintingData(null, dataBuffer);
    } else {
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        bitmap.copyPixelsFromBuffer(dataBuffer);

        data = new PaintingData(bitmap, null);
    }

    buffers[0] = framebuffer;
    GLES20.glDeleteFramebuffers(1, buffers, 0);

    buffers[0] = texture;
    GLES20.glDeleteTextures(1, buffers, 0);

    return data;
}

Source File: OpenGlUtils.java From TikTok with Apache License 2.0

4 votes

public static Bitmap drawToBitmapByFilter(Bitmap bitmap, GPUImageFilter filter,
                                          int displayWidth, int displayHeight, boolean rotate){
    if(filter == null)
        return null;
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    int[] mFrameBuffers = new int[1];
    int[] mFrameBufferTextures = new int[1];
    GLES20.glGenFramebuffers(1, mFrameBuffers, 0);
    GLES20.glGenTextures(1, mFrameBufferTextures, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mFrameBufferTextures[0]);
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0,
            GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
    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.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, mFrameBuffers[0]);
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0,
            GLES20.GL_TEXTURE_2D, mFrameBufferTextures[0], 0);
    GLES20.glViewport(0, 0, width, height);
    filter.onInputSizeChanged(width, height);
    filter.onDisplaySizeChanged(displayWidth, displayHeight);
    int textureId = OpenGlUtils.loadTexture(bitmap, OpenGlUtils.NO_TEXTURE, true);
    if(rotate){
        FloatBuffer gLCubeBuffer = ByteBuffer.allocateDirect(TextureRotationUtil.CUBE.length * 4)
                .order(ByteOrder.nativeOrder())
                .asFloatBuffer();
        gLCubeBuffer.put(TextureRotationUtil.CUBE).position(0);

        FloatBuffer gLTextureBuffer = ByteBuffer
                .allocateDirect(TextureRotationUtil.TEXTURE_NO_ROTATION.length * 4)
                .order(ByteOrder.nativeOrder())
                .asFloatBuffer();
        gLTextureBuffer.put(TextureRotationUtil.getRotation(Rotation.ROTATION_90, true, false)).position(0);
        filter.onDrawFrame(textureId, gLCubeBuffer, gLTextureBuffer);
    }else {
        filter.onDrawFrame(textureId);
    }
    IntBuffer ib = IntBuffer.allocate(width * height);
    GLES20.glReadPixels(0, 0, width, height, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, ib);
    Bitmap result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    result.copyPixelsFromBuffer(IntBuffer.wrap(ib.array()));
    GLES20.glDeleteTextures(1, new int[]{textureId}, 0);
    GLES20.glDeleteFramebuffers(1, mFrameBuffers, 0);
    GLES20.glDeleteTextures(1, mFrameBufferTextures, 0);
    filter.onInputSizeChanged(displayWidth, displayHeight);
    return result;
}

Source File: FURenderer.java From PLDroidShortVideo with Apache License 2.0

4 votes

private void createFBO(int width, int height) {
        if (fboTex != null && (fboWidth != width || fboHeight != height)) {
            deleteFBO();
        }

        fboWidth = width;
        fboHeight = height;

        if (fboTex == null) {
            fboId = new int[4];
            fboTex = new int[4];
            renderBufferId = new int[4];

//generate fbo id
            GLES20.glGenFramebuffers(4, fboId, 0);
//generate texture
            GLES20.glGenTextures(4, fboTex, 0);
//generate render buffer
            GLES20.glGenRenderbuffers(4, renderBufferId, 0);

            for (int i = 0; i < fboId.length; i++) {
//Bind Frame buffer
                GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, fboId[i]);
//Bind texture
                GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, fboTex[i]);
//Define texture parameters
                GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
                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);
                GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
                GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
//Bind render buffer and define buffer dimension
                GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, renderBufferId[i]);
                GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16, width, height);
//Attach texture FBO color attachment
                GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, fboTex[i], 0);
//Attach render buffer to depth attachment
                GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT, GLES20.GL_RENDERBUFFER, renderBufferId[i]);
//we are done, reset
                GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
                GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, 0);
                GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
            }
        }
    }

Source File: TwoPassFilter.java From AndroidFastImageProcessing with MIT License

votes

private void initFBO() {
		if(firstPassFrameBuffer != null) {
			GLES20.glDeleteFramebuffers(1, firstPassFrameBuffer, 0);
			firstPassFrameBuffer = null;
		}
		if(firstPassTextureOut != null) {
			GLES20.glDeleteTextures(1, firstPassTextureOut, 0);
			firstPassTextureOut = null;
		}
		if(firstPassDepthRenderBuffer != null) {
			GLES20.glDeleteRenderbuffers(1, firstPassDepthRenderBuffer, 0);
			firstPassDepthRenderBuffer = null;
		}
		firstPassFrameBuffer = new int[1];
		firstPassTextureOut = new int[1];
		firstPassDepthRenderBuffer = new int[1];
		GLES20.glGenFramebuffers(1, firstPassFrameBuffer, 0);
		GLES20.glGenRenderbuffers(1, firstPassDepthRenderBuffer, 0);
		GLES20.glGenTextures(1, firstPassTextureOut, 0);
		
		GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, firstPassFrameBuffer[0]);
		
		GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
		GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, firstPassTextureOut[0]);
		GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGB, getWidth(), getHeight(), 0, GLES20.GL_RGB, GLES20.GL_UNSIGNED_SHORT_5_6_5, null);
		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);
		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
		GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, firstPassTextureOut[0], 0);
		
		GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, firstPassDepthRenderBuffer[0]);
		GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16, getWidth(), getHeight());
		GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT, GLES20.GL_RENDERBUFFER, firstPassDepthRenderBuffer[0]);
		
		int status = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
		if (status != GLES20.GL_FRAMEBUFFER_COMPLETE) {
			throw new RuntimeException(this+": Failed to set up render buffer with status "+status+" and error "+GLES20.glGetError());
		}
	}

Java Code Examples for android.opengl.GLES20#glFramebufferTexture2D()