Examples with Quad android.filterfw.geometry.Quad used on opensource projects

Example 16 with Quad

use of android.filterfw.geometry.Quad in project android_frameworks_base by DirtyUnicorns.

the class FixedRotationFilter method process.

@Override
public void process(FilterContext context) {
    Frame input = pullInput("image");
    if (mRotation == 0) {
        pushOutput("image", input);
        return;
    }
    FrameFormat inputFormat = input.getFormat();
    // Create program if not created already
    if (mProgram == null) {
        mProgram = ShaderProgram.createIdentity(context);
    }
    MutableFrameFormat outputFormat = inputFormat.mutableCopy();
    int width = inputFormat.getWidth();
    int height = inputFormat.getHeight();
    Point p1 = new Point(0.0f, 0.0f);
    Point p2 = new Point(1.0f, 0.0f);
    Point p3 = new Point(0.0f, 1.0f);
    Point p4 = new Point(1.0f, 1.0f);
    Quad sourceRegion;
    switch(((int) Math.round(mRotation / 90f)) % 4) {
        case 1:
            sourceRegion = new Quad(p3, p1, p4, p2);
            outputFormat.setDimensions(height, width);
            break;
        case 2:
            sourceRegion = new Quad(p4, p3, p2, p1);
            break;
        case 3:
            sourceRegion = new Quad(p2, p4, p1, p3);
            outputFormat.setDimensions(height, width);
            break;
        case 0:
        default:
            sourceRegion = new Quad(p1, p2, p3, p4);
            break;
    }
    // Create output frame
    Frame output = context.getFrameManager().newFrame(outputFormat);
    // Set the source region
    mProgram.setSourceRegion(sourceRegion);
    // Process
    mProgram.process(input, output);
    // Push output
    pushOutput("image", output);
    // Release pushed frame
    output.release();
}

Example 17 with Quad

use of android.filterfw.geometry.Quad in project android_frameworks_base by AOSPA.

the class StraightenFilter method updateParameters.

private void updateParameters() {
    float cosTheta = (float) Math.cos(mAngle * DEGREE_TO_RADIAN);
    float sinTheta = (float) Math.sin(mAngle * DEGREE_TO_RADIAN);
    if (mMaxAngle <= 0)
        throw new RuntimeException("Max angle is out of range (0-180).");
    mMaxAngle = (mMaxAngle > 90) ? 90 : mMaxAngle;
    Point p0 = new Point(-cosTheta * mWidth + sinTheta * mHeight, -sinTheta * mWidth - cosTheta * mHeight);
    Point p1 = new Point(cosTheta * mWidth + sinTheta * mHeight, sinTheta * mWidth - cosTheta * mHeight);
    Point p2 = new Point(-cosTheta * mWidth - sinTheta * mHeight, -sinTheta * mWidth + cosTheta * mHeight);
    Point p3 = new Point(cosTheta * mWidth - sinTheta * mHeight, sinTheta * mWidth + cosTheta * mHeight);
    float maxWidth = (float) Math.max(Math.abs(p0.x), Math.abs(p1.x));
    float maxHeight = (float) Math.max(Math.abs(p0.y), Math.abs(p1.y));
    float scale = 0.5f * Math.min(mWidth / maxWidth, mHeight / maxHeight);
    p0.set(scale * p0.x / mWidth + 0.5f, scale * p0.y / mHeight + 0.5f);
    p1.set(scale * p1.x / mWidth + 0.5f, scale * p1.y / mHeight + 0.5f);
    p2.set(scale * p2.x / mWidth + 0.5f, scale * p2.y / mHeight + 0.5f);
    p3.set(scale * p3.x / mWidth + 0.5f, scale * p3.y / mHeight + 0.5f);
    Quad quad = new Quad(p0, p1, p2, p3);
    ((ShaderProgram) mProgram).setSourceRegion(quad);
}

Example 18 with Quad

use of android.filterfw.geometry.Quad in project android_frameworks_base by AOSPA.

the class RotateFilter method updateParameters.

private void updateParameters() {
    float sinTheta;
    float cosTheta;
    if (mAngle % 90 == 0) {
        if (mAngle % 180 == 0) {
            sinTheta = 0f;
            cosTheta = (mAngle % 360 == 0) ? 1f : -1f;
        } else {
            cosTheta = 0f;
            sinTheta = ((mAngle + 90) % 360 == 0) ? -1f : 1f;
            mOutputWidth = mHeight;
            mOutputHeight = mWidth;
        }
    } else {
        throw new RuntimeException("degree has to be multiply of 90.");
    }
    Point x0 = new Point(0.5f * (-cosTheta + sinTheta + 1f), 0.5f * (-sinTheta - cosTheta + 1f));
    Point x1 = new Point(0.5f * (cosTheta + sinTheta + 1f), 0.5f * (sinTheta - cosTheta + 1f));
    Point x2 = new Point(0.5f * (-cosTheta - sinTheta + 1f), 0.5f * (-sinTheta + cosTheta + 1f));
    Point x3 = new Point(0.5f * (cosTheta - sinTheta + 1f), 0.5f * (sinTheta + cosTheta + 1f));
    Quad quad = new Quad(x0, x1, x2, x3);
    ((ShaderProgram) mProgram).setTargetRegion(quad);
}

Example 19 with Quad

use of android.filterfw.geometry.Quad in project android_frameworks_base by crdroidandroid.

the class MediaEncoderFilter method updateSourceRegion.

private void updateSourceRegion() {
    // Flip source quad to map to OpenGL origin
    Quad flippedRegion = new Quad();
    flippedRegion.p0 = mSourceRegion.p2;
    flippedRegion.p1 = mSourceRegion.p3;
    flippedRegion.p2 = mSourceRegion.p0;
    flippedRegion.p3 = mSourceRegion.p1;
    mProgram.setSourceRegion(flippedRegion);
}

Example 20 with Quad

use of android.filterfw.geometry.Quad in project android_frameworks_base by crdroidandroid.

the class StraightenFilter method updateParameters.

private void updateParameters() {
    float cosTheta = (float) Math.cos(mAngle * DEGREE_TO_RADIAN);
    float sinTheta = (float) Math.sin(mAngle * DEGREE_TO_RADIAN);
    if (mMaxAngle <= 0)
        throw new RuntimeException("Max angle is out of range (0-180).");
    mMaxAngle = (mMaxAngle > 90) ? 90 : mMaxAngle;
    Point p0 = new Point(-cosTheta * mWidth + sinTheta * mHeight, -sinTheta * mWidth - cosTheta * mHeight);
    Point p1 = new Point(cosTheta * mWidth + sinTheta * mHeight, sinTheta * mWidth - cosTheta * mHeight);
    Point p2 = new Point(-cosTheta * mWidth - sinTheta * mHeight, -sinTheta * mWidth + cosTheta * mHeight);
    Point p3 = new Point(cosTheta * mWidth - sinTheta * mHeight, sinTheta * mWidth + cosTheta * mHeight);
    float maxWidth = (float) Math.max(Math.abs(p0.x), Math.abs(p1.x));
    float maxHeight = (float) Math.max(Math.abs(p0.y), Math.abs(p1.y));
    float scale = 0.5f * Math.min(mWidth / maxWidth, mHeight / maxHeight);
    p0.set(scale * p0.x / mWidth + 0.5f, scale * p0.y / mHeight + 0.5f);
    p1.set(scale * p1.x / mWidth + 0.5f, scale * p1.y / mHeight + 0.5f);
    p2.set(scale * p2.x / mWidth + 0.5f, scale * p2.y / mHeight + 0.5f);
    p3.set(scale * p3.x / mWidth + 0.5f, scale * p3.y / mHeight + 0.5f);
    Quad quad = new Quad(p0, p1, p2, p3);
    ((ShaderProgram) mProgram).setSourceRegion(quad);
}