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 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package com.sun.javafx.webkit.prism;

import com.sun.glass.ui.Screen;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.media.jfxmedia.MediaManager;
import com.sun.prism.Graphics;
import com.sun.webkit.perf.WCFontPerfLogger;
import com.sun.webkit.perf.WCGraphicsPerfLogger;
import com.sun.webkit.graphics.*;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;

public final class PrismGraphicsManager extends WCGraphicsManager {

    private final static float highestPixelScale;
    private final static BaseTransform pixelScaleTransform;

    static {
        float ps = 1f;
        for (Screen s : Screen.getScreens()) {
            ps = Math.max(s.getRenderScale(), ps);
        }
        highestPixelScale = ps;
        pixelScaleTransform = BaseTransform.getScaleInstance(ps, ps);
    }

    static BaseTransform getPixelScaleTransform() {
        return pixelScaleTransform;
    }

    @Override public float getDevicePixelScale() {
        return highestPixelScale;
    }

    @Override protected WCImageDecoder getImageDecoder() {
        return new WCImageDecoderImpl();
    }

    @Override public WCRenderQueue createRenderQueue(WCRectangle clip,
                                                     boolean opaque)
    {
        return new WCRenderQueueImpl(clip, opaque);
    }

    @Override protected WCRenderQueue createBufferedContextRQ(WCImage image) {
        WCGraphicsContext g = new WCBufferedContext((PrismImage) image);
        WCRenderQueue rq = new WCRenderQueueImpl(
                WCGraphicsPerfLogger.isEnabled()
                        ? new WCGraphicsPerfLogger(g) : g);
        image.setRQ(rq);
        return rq;
    }

    @Override protected WCFont getWCFont(String name, boolean bold, boolean italic, float size)
    {
        WCFont f = WCFontImpl.getFont(name, bold, italic, size);
        return WCFontPerfLogger.isEnabled() && (f != null) ? new WCFontPerfLogger(f) : f;
    }

    @Override
    protected WCFontCustomPlatformData createFontCustomPlatformData(
            InputStream inputStream) throws IOException
    {
        return new WCFontCustomPlatformDataImpl(inputStream);
    }

    @Override
    public WCGraphicsContext createGraphicsContext(Object platG) {
        WCGraphicsContext g = new WCGraphicsPrismContext((Graphics)platG);
        return WCGraphicsPerfLogger.isEnabled() ? new WCGraphicsPerfLogger(g) : g;
    }

    @Override public WCPageBackBuffer createPageBackBuffer() {
        return new WCPageBackBufferImpl(highestPixelScale);
    }

    @Override
    protected WCPath createWCPath() {
        return new WCPathImpl();
    }

    @Override
    protected WCPath createWCPath(WCPath path) {
        return new WCPathImpl((WCPathImpl)path);
    }

    @Override
    protected WCImage createWCImage(int w, int h) {
        return new WCImageImpl(w, h);
    }

    @Override
    protected WCImage createRTImage(int w, int h) {
        return new RTImage(w, h, highestPixelScale);
    }

    @Override public WCImage getIconImage(String iconURL) {
        return null;
    }

    @Override public Object toPlatformImage(WCImage image) {
        return ((WCImageImpl) image).getImage();
    }

    @Override
    protected WCImageFrame createFrame(int w, int h, ByteBuffer bytes) {
        int[] data = new int[bytes.capacity() / 4];
        bytes.order(ByteOrder.nativeOrder());
        bytes.asIntBuffer().get(data);
        final WCImageImpl wimg = new WCImageImpl(data, w, h);

        return new WCImageFrame() {
            public WCImage getFrame() { return wimg; }
        };
    }

    @Override
    protected WCTransform createTransform(double m00, double m10, double m01,
            double m11, double m02, double m12)
    {
        return new WCTransform(m00, m10, m01, m11, m02, m12);
    }

    @Override
    protected String[] getSupportedMediaTypes() {
        String[] types = MediaManager.getSupportedContentTypes();
        // RT-19949: disable FLV support (workaround for youtube):
        // if browser reports support for video/x-flv, youtube player sets
        // media source to FLV (H264+AAC) stream and does not switch to MP4 on error
        int len = types.length;
        for (int i=0; i<len; i++) {
            if ("video/x-flv".compareToIgnoreCase(types[i]) == 0) {
                System.arraycopy(types, i+1, types, i, len-(i+1));
                len--;
            }
        }
        if (len < types.length) {
            String[] trimmedArray = new String[len];
            System.arraycopy(types, 0, trimmedArray, 0, len);
            types = trimmedArray;
        }
        return types;
    }

    @Override
    protected WCMediaPlayer createMediaPlayer() {
        return new WCMediaPlayerImpl();
    }
}