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

The following examples show how to use android.opengl.GLES20#glScissor() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

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

6 votes

/**
 * Draws the scene.
 */
private void draw() {
    GlUtil.checkGlError("draw start");

    GLES20.glClearColor(0f, 0f, 0f, 1f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);

    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(mPosition, mHeight * 2 / 8, mBlockWidth, mHeight / 8);
    GLES20.glClearColor(1f, 1f * (mDroppedFrames & 0x01),
            1f * (mChoreographerSkips & 0x01), 1f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);

    GlUtil.checkGlError("draw done");
}

Example 2

Source File: MovieEightRects.java From pause-resume-video-recording with Apache License 2.0

6 votes

/**
 * Generates a frame of data using GL commands.  We have an 8-frame animation
 * sequence that wraps around.  It looks like this:
 * <pre>
 *   0 1 2 3
 *   7 6 5 4
 * </pre>
 * We draw one of the eight rectangles and leave the rest set to the clear color.
 */
private void generateFrame(int frameIndex) {
    frameIndex %= 8;

    int startX, startY;
    if (frameIndex < 4) {
        // (0,0) is bottom-left in GL
        startX = frameIndex * (WIDTH / 4);
        startY = HEIGHT / 2;
    } else {
        startX = (7 - frameIndex) * (WIDTH / 4);
        startY = 0;
    }

    GLES20.glClearColor(TEST_R0 / 255.0f, TEST_G0 / 255.0f, TEST_B0 / 255.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);

    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(startX, startY, WIDTH / 4, HEIGHT / 2);
    GLES20.glClearColor(TEST_R1 / 255.0f, TEST_G1 / 255.0f, TEST_B1 / 255.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
}

Example 3

Source File: MDBarrelDistortionLinePipe.java From Beginner-Level-Android-Studio-Apps with GNU General Public License v3.0

6 votes

@Override
public void commit(int totalWidth, int totalHeight, int size){
    if (!mEnabled){
        return;
    }
    mDrawingCache.unbind();

    int width = totalWidth / size;
    for (int i = 0; i < size; i++){
        GLES20.glViewport(width * i, 0, width, totalHeight);
        GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
        GLES20.glScissor(width * i, 0, width, totalHeight);
        draw(i);
        GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
    }
}

Example 4

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

6 votes

/**
 * Generates a frame of data using GL commands.  We have an 8-frame animation
 * sequence that wraps around.  It looks like this:
 * <pre>
 *   0 1 2 3
 *   7 6 5 4
 * </pre>
 * We draw one of the eight rectangles and leave the rest set to the clear color.
 */
private void generateFrame(int frameIndex) {
    frameIndex %= 8;

    int startX, startY;
    if (frameIndex < 4) {
        // (0,0) is bottom-left in GL
        startX = frameIndex * (WIDTH / 4);
        startY = HEIGHT / 2;
    } else {
        startX = (7 - frameIndex) * (WIDTH / 4);
        startY = 0;
    }

    GLES20.glClearColor(TEST_R0 / 255.0f, TEST_G0 / 255.0f, TEST_B0 / 255.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);

    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(startX, startY, WIDTH / 4, HEIGHT / 2);
    GLES20.glClearColor(TEST_R1 / 255.0f, TEST_G1 / 255.0f, TEST_B1 / 255.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
}

Example 5

Source File: DecodeEditEncodeTest.java From Android-MediaCodec-Examples with Apache License 2.0

6 votes

/**
 * Generates a frame of data using GL commands.
 * <p>
 * We have an 8-frame animation sequence that wraps around.  It looks like this:
 * <pre>
 *   0 1 2 3
 *   7 6 5 4
 * </pre>
 * We draw one of the eight rectangles and leave the rest set to the zero-fill color.     */
private void generateSurfaceFrame(int frameIndex) {
    frameIndex %= 8;
    int startX, startY;
    if (frameIndex < 4) {
        // (0,0) is bottom-left in GL
        startX = frameIndex * (mWidth / 4);
        startY = mHeight / 2;
    } else {
        startX = (7 - frameIndex) * (mWidth / 4);
        startY = 0;
    }
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
    GLES20.glClearColor(TEST_R0 / 255.0f, TEST_G0 / 255.0f, TEST_B0 / 255.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(startX, startY, mWidth / 4, mHeight / 2);
    GLES20.glClearColor(TEST_R1 / 255.0f, TEST_G1 / 255.0f, TEST_B1 / 255.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
}

Example 6

Source File: EncodeAndMuxTest.java From Android-MediaCodec-Examples with Apache License 2.0

6 votes

/**
 * Generates a frame of data using GL commands.  We have an 8-frame animation
 * sequence that wraps around.  It looks like this:
 * <pre>
 *   0 1 2 3
 *   7 6 5 4
 * </pre>
 * We draw one of the eight rectangles and leave the rest set to the clear color.
 */
private void generateSurfaceFrame(int frameIndex) {
    frameIndex %= 8;

    int startX, startY;
    if (frameIndex < 4) {
        // (0,0) is bottom-left in GL
        startX = frameIndex * (mWidth / 4);
        startY = mHeight / 2;
    } else {
        startX = (7 - frameIndex) * (mWidth / 4);
        startY = 0;
    }

    GLES20.glClearColor(TEST_R0 / 255.0f, TEST_G0 / 255.0f, TEST_B0 / 255.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);

    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(startX, startY, mWidth / 4, mHeight / 2);
    GLES20.glClearColor(TEST_R1 / 255.0f, TEST_G1 / 255.0f, TEST_B1 / 255.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
}

Example 7

Source File: MDBarrelDistortionLinePipe.java From MD360Player4Android with Apache License 2.0

6 votes

@Override
public void commit(int totalWidth, int totalHeight, int size){
    if (!mEnabled){
        return;
    }
    mDrawingCache.unbind();

    int width = totalWidth / size;
    for (int i = 0; i < size; i++){
        GLES20.glViewport(width * i, 0, width, totalHeight);
        GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
        GLES20.glScissor(width * i, 0, width, totalHeight);
        draw(i);
        GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
    }
}

Example 8

Source File: EncodeAndMuxTest.java From AndroidPlayground with MIT License

6 votes

/**
 * Generates a frame of data using GL commands.  We have an 8-frame animation
 * sequence that wraps around.  It looks like this:
 * <pre>
 *   0 1 2 3
 *   7 6 5 4
 * </pre>
 * We draw one of the eight rectangles and leave the rest set to the clear color.
 */
private void generateSurfaceFrame(int frameIndex) {
    frameIndex %= 8;

    int startX, startY;
    if (frameIndex < 4) {
        // (0,0) is bottom-left in GL
        startX = frameIndex * (mWidth / 4);
        startY = mHeight / 2;
    } else {
        startX = (7 - frameIndex) * (mWidth / 4);
        startY = 0;
    }

    GLES20.glClearColor(TEST_R0 / 255.0f, TEST_G0 / 255.0f, TEST_B0 / 255.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);

    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(startX, startY, mWidth / 4, mHeight / 2);
    GLES20.glClearColor(TEST_R1 / 255.0f, TEST_G1 / 255.0f, TEST_B1 / 255.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
}

Example 9

Source File: CameraSurfaceRenderer.java From AndroidPlayground with MIT License

5 votes

/**
 * Draws a red box in the corner.
 */
private void drawBox() {
    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(0, 0, 100, 100);
    GLES20.glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
}

Example 10

Source File: CameraCaptureActivity.java From pause-resume-video-recording with Apache License 2.0

5 votes

/**
 * Draws a red box in the corner.
 */
private void drawBox() {
    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(0, 0, 100, 100);
    GLES20.glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
}

Example 11

Source File: TextureMovieEncoder.java From AndroidPlayground with MIT License

5 votes

/**
 * Draws a box, with position offset.
 */
private void drawBox(int posn) {
    final int width = mInputWindowSurface.getWidth();
    int xpos = (posn * 4) % (width - 50);
    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(xpos, 0, 100, 100);
    GLES20.glClearColor(1.0f, 0.0f, 1.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
}

Example 12

Source File: GLScissorStack.java From tilt-game-android with MIT License

5 votes

public void glPopScissor() {
	if (this.mScissorStackOffset - GLScissorStack.GLSCISSOR_SIZE <= GLScissorStack.GLSCISSORSTACKOFFSET_UNDERFLOW) {
		throw new GLScissorStackUnderflowException();
	}

	this.mScissorStackOffset -= GLScissorStack.GLSCISSOR_SIZE;

	final int x = this.mScissorStack[this.mScissorStackOffset + GLSCISSOR_X_INDEX];
	final int y = this.mScissorStack[this.mScissorStackOffset + GLSCISSOR_Y_INDEX];
	final int width = this.mScissorStack[this.mScissorStackOffset + GLSCISSOR_WIDTH_INDEX];
	final int height = this.mScissorStack[this.mScissorStackOffset + GLSCISSOR_HEIGHT_INDEX];

	GLES20.glScissor(x, y, width, height);
}

Example 13

Source File: DoubleSceneSplitScreenEngine.java From tilt-game-android with MIT License

5 votes

@Override
protected void onDrawScene(final GLState pGLState, final Camera pFirstCamera) {
	final Camera secondCamera = this.getSecondCamera();

	final int surfaceWidth = this.mSurfaceWidth;
	final int surfaceWidthHalf = surfaceWidth >> 1;

	final int surfaceHeight = this.mSurfaceHeight;

	pGLState.enableScissorTest();

	/* First Screen. With first camera, on the left half of the screens width. */
	if (super.mScene != null) {
		GLES20.glScissor(0, 0, surfaceWidthHalf, surfaceHeight);
		GLES20.glViewport(0, 0, surfaceWidthHalf, surfaceHeight);

		super.mScene.onDraw(pGLState, pFirstCamera);
		pFirstCamera.onDrawHUD(pGLState);
	}

	/* Second Screen. With second camera, on the right half of the screens width. */
	if (this.mSecondScene != null) {
		GLES20.glScissor(surfaceWidthHalf, 0, surfaceWidthHalf, surfaceHeight);
		GLES20.glViewport(surfaceWidthHalf, 0, surfaceWidthHalf, surfaceHeight);

		this.mSecondScene.onDraw(pGLState, secondCamera);
		secondCamera.onDrawHUD(pGLState);
	}

	pGLState.disableScissorTest();
}

Example 14

Source File: SingleSceneSplitScreenEngine.java From tilt-game-android with MIT License

5 votes

@Override
protected void onDrawScene(final GLState pGLState, final Camera pFirstCamera) {
	if (super.mScene != null) {
		final Camera secondCamera = this.getSecondCamera();

		final int surfaceWidth = this.mSurfaceWidth;
		final int surfaceWidthHalf = surfaceWidth >> 1;

		final int surfaceHeight = this.mSurfaceHeight;

		pGLState.enableScissorTest();

		/* First Screen. With first camera, on the left half of the screens width. */
		{
			GLES20.glScissor(0, 0, surfaceWidthHalf, surfaceHeight);
			GLES20.glViewport(0, 0, surfaceWidthHalf, surfaceHeight);

			super.mScene.onDraw(pGLState, pFirstCamera);
			pFirstCamera.onDrawHUD(pGLState);
		}

		/* Second Screen. With second camera, on the right half of the screens width. */
		{
			GLES20.glScissor(surfaceWidthHalf, 0, surfaceWidthHalf, surfaceHeight);
			GLES20.glViewport(surfaceWidthHalf, 0, surfaceWidthHalf, surfaceHeight);

			super.mScene.onDraw(pGLState, secondCamera);
			secondCamera.onDrawHUD(pGLState);
		}

		pGLState.disableScissorTest();
	}
}

Example 15

Source File: TextureMovieEncoder.java From LiveVideoBroadcaster with Apache License 2.0

5 votes

/**
 * Draws a box, with position offset.
 */
private void drawBox(int posn) {
    final int width = mInputWindowSurface.getWidth();
    int xpos = (posn * 4) % (width - 50);
    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(xpos, 0, 100, 100);
    GLES20.glClearColor(1.0f, 0.0f, 1.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
}

Example 16

Source File: CameraSurfaceRenderer.java From LiveVideoBroadcaster with Apache License 2.0

5 votes

/**
 * Draws a red box in the corner.
 */
private void drawBox() {
    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(0, 0, 100, 100);
    GLES20.glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
}

Example 17

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

5 votes

/**
 * Draws a red box in the corner.
 */
private void drawBox() {
    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    GLES20.glScissor(0, 0, 100, 100);
    GLES20.glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
}

Example 18

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

4 votes

/**
 * Clears the surface, then draws some alpha-blended rectangles with GL.
 * <p>
 * Creates a temporary EGL context just for the duration of the call.
 */
private void drawRectSurface(Surface surface, int left, int top, int width, int height) {
    EglCore eglCore = new EglCore();
    WindowSurface win = new WindowSurface(eglCore, surface, false);
    win.makeCurrent();
    GLES20.glClearColor(0, 0, 0, 0);
    GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);

    GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
    for (int i = 0; i < 4; i++) {
        int x, y, w, h;
        if (width < height) {
            // vertical
            w = width / 4;
            h = height;
            x = left + w * i;
            y = top;
        } else {
            // horizontal
            w = width;
            h = height / 4;
            x = left;
            y = top + h * i;
        }
        GLES20.glScissor(x, y, w, h);
        switch (i) {
            case 0:     // 50% blue at 25% alpha, pre-multiplied
                GLES20.glClearColor(0.0f, 0.0f, 0.125f, 0.25f);
                break;
            case 1:     // 100% blue at 25% alpha, pre-multiplied
                GLES20.glClearColor(0.0f, 0.0f, 0.25f, 0.25f);
                break;
            case 2:     // 200% blue at 25% alpha, pre-multiplied (should get clipped)
                GLES20.glClearColor(0.0f, 0.0f, 0.5f, 0.25f);
                break;
            case 3:     // 100% white at 25% alpha, pre-multiplied
                GLES20.glClearColor(0.25f, 0.25f, 0.25f, 0.25f);
                break;
        }
        GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
    }
    GLES20.glDisable(GLES20.GL_SCISSOR_TEST);

    win.swapBuffers();
    win.release();
    eglCore.release();
}

Example 19

Source File: GLScissorStack.java From tilt-game-android with MIT License

4 votes

public void glPushScissor(final int pX, final int pY, final int pWidth, final int pHeight) {
	if (this.mScissorStackOffset + GLScissorStack.GLSCISSOR_SIZE >= GLScissorStack.GLSCISSORSTACKOFFSET_OVERFLOW) {
		throw new GLScissorStackOverflowException();
	}

	final int x;
	final int y;
	final int width;
	final int height;
	if (this.mScissorStackOffset == 0) {
		x = pX;
		y = pY;
		width = pWidth;
		height = pHeight;
	} else {
		/* Take the intersection between the current and the new scissor: */
		final int currentX = this.mScissorStack[this.mScissorStackOffset - (GLSCISSOR_SIZE - GLSCISSOR_X_INDEX)];
		final int currentY = this.mScissorStack[this.mScissorStackOffset - (GLSCISSOR_SIZE - GLSCISSOR_Y_INDEX)];
		final int currentWidth = this.mScissorStack[this.mScissorStackOffset - (GLSCISSOR_SIZE - GLSCISSOR_WIDTH_INDEX)];
		final int currentHeight = this.mScissorStack[this.mScissorStackOffset - (GLSCISSOR_SIZE - GLSCISSOR_HEIGHT_INDEX)];

		final float xMin = Math.max(currentX, pX);
		final float xMax = Math.min(currentX + currentWidth, pX + pWidth);

		final float yMin = Math.max(currentY, pY);
		final float yMax = Math.min(currentY + currentHeight, pY + pHeight);

		x = (int) xMin;
		y = (int) yMin;
		width = (int) (xMax - xMin);
		height = (int) (yMax - yMin);
	}

	this.mScissorStack[this.mScissorStackOffset + GLSCISSOR_X_INDEX] = pX;
	this.mScissorStack[this.mScissorStackOffset + GLSCISSOR_Y_INDEX] = pY;
	this.mScissorStack[this.mScissorStackOffset + GLSCISSOR_WIDTH_INDEX] = pWidth;
	this.mScissorStack[this.mScissorStackOffset + GLSCISSOR_HEIGHT_INDEX] = pHeight;

	GLES20.glScissor(x, y, width, height);

	this.mScissorStackOffset += GLScissorStack.GLSCISSOR_SIZE;
}

Example 20

Source File: AndroidGL.java From trekarta with GNU General Public License v3.0

4 votes

@Override
public void scissor(int x, int y, int width, int height) {
    GLES20.glScissor(x, y, width, height);
}