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com.sun.javafx.sg.prism.NGCanvas Maven / Gradle / Ivy
/*
* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.javafx.sg.prism;
import com.sun.javafx.font.PGFont;
import com.sun.javafx.geom.Arc2D;
import com.sun.javafx.geom.BaseBounds;
import com.sun.javafx.geom.DirtyRegionContainer;
import com.sun.javafx.geom.DirtyRegionPool;
import com.sun.javafx.geom.Path2D;
import com.sun.javafx.geom.PathIterator;
import com.sun.javafx.geom.RectBounds;
import com.sun.javafx.geom.Rectangle;
import com.sun.javafx.geom.Shape;
import com.sun.javafx.geom.transform.Affine2D;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.javafx.geom.transform.NoninvertibleTransformException;
import com.sun.javafx.sg.GrowableDataBuffer;
import com.sun.javafx.sg.PGCanvas;
import com.sun.javafx.sg.PGShape;
import com.sun.javafx.text.PrismTextLayout;
import com.sun.prism.BasicStroke;
import com.sun.prism.CompositeMode;
import com.sun.prism.Graphics;
import com.sun.prism.Image;
import com.sun.prism.RTTexture;
import com.sun.prism.ResourceFactory;
import com.sun.prism.Texture;
import com.sun.prism.Texture.WrapMode;
import com.sun.prism.paint.Color;
import com.sun.prism.paint.Paint;
import com.sun.scenario.effect.Blend;
import com.sun.scenario.effect.Blend.Mode;
import com.sun.scenario.effect.Effect;
import com.sun.scenario.effect.FilterContext;
import com.sun.scenario.effect.Filterable;
import com.sun.scenario.effect.ImageData;
import com.sun.scenario.effect.impl.prism.PrDrawable;
import com.sun.scenario.effect.impl.prism.PrFilterContext;
import com.sun.scenario.effect.impl.prism.PrTexture;
import java.nio.IntBuffer;
import java.util.LinkedList;
import javafx.geometry.VPos;
import javafx.scene.text.Font;
/**
*/
public class NGCanvas extends NGNode implements PGCanvas {
static enum InitType {
CLEAR,
FILL_WHITE,
PRESERVE_UPPER_LEFT
}
static class RenderBuf {
final InitType init_type;
RTTexture tex;
Graphics g;
EffectInput input;
private PixelData savedPixelData = null;
public RenderBuf(InitType init_type) {
this.init_type = init_type;
}
public void dispose() {
if (tex != null) tex.dispose();
tex = null;
g = null;
input = null;
}
public boolean validate(Graphics resg, int tw, int th) {
int cw, ch;
boolean create;
if (tex == null) {
cw = ch = 0;
create = true;
} else {
cw = tex.getContentWidth();
ch = tex.getContentHeight();
tex.lock();
create = tex.isSurfaceLost() || cw < tw || ch < th;
}
if (create) {
RTTexture oldtex = tex;
ResourceFactory factory = resg.getResourceFactory();
RTTexture newtex =
factory.createRTTexture(tw, th, WrapMode.CLAMP_TO_ZERO);
this.tex = newtex;
this.g = newtex.createGraphics();
this.input = new EffectInput(newtex);
if (oldtex != null) {
if (init_type == InitType.PRESERVE_UPPER_LEFT) {
g.setCompositeMode(CompositeMode.SRC);
if (oldtex.createGraphics() == null) {
if (savedPixelData != null) {
savedPixelData.restore(g, cw, ch);
}
} else {
g.drawTexture(oldtex, 0, 0, cw, ch);
}
g.setCompositeMode(CompositeMode.SRC_OVER);
}
oldtex.unlock();
oldtex.dispose();
}
if (init_type == InitType.FILL_WHITE) {
g.setPaint(Color.WHITE);
g.fillRect(0, 0, tw, th);
}
return true;
} else {
if (this.g == null) {
this.g = tex.createGraphics();
if (this.g == null) {
tex.dispose();
ResourceFactory factory = resg.getResourceFactory();
tex = factory.createRTTexture(tw, th, WrapMode.CLAMP_TO_ZERO);
this.g = tex.createGraphics();
this.input = new EffectInput(tex);
if (savedPixelData != null) {
g.setCompositeMode(CompositeMode.SRC);
savedPixelData.restore(g, tw, th);
g.setCompositeMode(CompositeMode.SRC_OVER);
} else if (init_type == InitType.FILL_WHITE) {
g.setPaint(Color.WHITE);
g.fillRect(0, 0, tw, th);
}
return true;
}
}
}
if (init_type == InitType.CLEAR) {
g.setCompositeMode(CompositeMode.CLEAR);
g.fillRect(0, 0, tw, th);
g.setCompositeMode(CompositeMode.SRC_OVER);
}
return false;
}
private void save(Graphics g, int tw, int th) {
if (tex.isVolatile()) {
if (savedPixelData == null) {
savedPixelData = new PixelData(g, tw, th);
}
savedPixelData.save(g, tex);
}
}
}
// Saved pixel data used to preserve the image that backs the canvas if the
// RTT is volatile.
private static class PixelData {
private IntBuffer pixels = null;
private boolean validPixels = false;
private int cw, ch;
private PixelData(Graphics g, int cw, int ch) {
this.cw = cw;
this.ch = ch;
pixels = IntBuffer.allocate(cw*ch);
}
private void save(Graphics g, RTTexture tex) {
int tw = tex.getContentWidth();
int th = tex.getContentHeight();
if (cw < tw || ch < th) {
cw = tw;
ch = th;
pixels = IntBuffer.allocate(cw*ch);
}
pixels.rewind();
tex.readPixels(pixels);
validPixels = true;
}
private void restore(Graphics g, int tw, int th) {
if (validPixels) {
Image img = Image.fromIntArgbPreData(pixels, tw, th);
ResourceFactory factory = g.getResourceFactory();
Texture tempTex =
factory.createTexture(img,
Texture.Usage.DEFAULT,
Texture.WrapMode.CLAMP_TO_EDGE);
g.drawTexture(tempTex, 0, 0, tw, th);
tempTex.dispose();
validPixels = false;
}
}
}
private static Image TMP_IMAGE = Image.fromIntArgbPreData(new int[1], 1, 1);
private static Blend BLENDER = new MyBlend(Mode.SRC_OVER, null, null);
private GrowableDataBuffer thebuf;
private int tw, th;
private RenderBuf cv;
private RenderBuf temp;
private RenderBuf clip;
private float globalAlpha;
private byte fillRule;
private Blend.Mode blendmode;
private Paint fillPaint, strokePaint;
private float linewidth;
private int linecap, linejoin;
private float miterlimit;
private BasicStroke stroke;
private Path2D path;
private NGText ngtext;
private PrismTextLayout textLayout;
private PGFont pgfont;
private int align;
private int baseline;
private Affine2D transform;
private Affine2D inverseTransform;
private boolean inversedirty;
private LinkedList clipStack;
private Effect effect;
private int arctype;
static float TEMP_COORDS[] = new float[6];
private static Arc2D TEMP_ARC = new Arc2D();
private static RectBounds TEMP_RECTBOUNDS = new RectBounds();
public NGCanvas() {
cv = new RenderBuf(InitType.PRESERVE_UPPER_LEFT);
temp = new RenderBuf(InitType.CLEAR);
clip = new RenderBuf(InitType.FILL_WHITE);
globalAlpha = 1.0f;
fillRule = PGCanvas.FILL_RULE_NON_ZERO;
blendmode = Mode.SRC_OVER;
fillPaint = Color.BLACK;
strokePaint = Color.BLACK;
linewidth = 1.0f;
linecap = BasicStroke.CAP_SQUARE;
linejoin = BasicStroke.JOIN_MITER;
miterlimit = 10f;
stroke = null;
path = new Path2D();
ngtext = new NGText();
textLayout = new PrismTextLayout();
pgfont = (PGFont) Font.getDefault().impl_getNativeFont();
align = PGCanvas.ALIGN_LEFT;
baseline = VPos.BASELINE.ordinal();
transform = new Affine2D(highestPixelScale, 0, 0,
highestPixelScale, 0, 0);
clipStack = new LinkedList();
}
static final Affine2D TEMP_PATH_TX = new Affine2D();
static final int numCoords[] = { 2, 2, 4, 6, 0 };
Shape untransformedPath = new Shape() {
@Override
public RectBounds getBounds() {
if (transform.isTranslateOrIdentity()) {
RectBounds rb = path.getBounds();
if (transform.isIdentity()) {
return rb;
} else {
float tx = (float) transform.getMxt();
float ty = (float) transform.getMyt();
return new RectBounds(rb.getMinX() - tx, rb.getMinY() - ty,
rb.getMaxX() - tx, rb.getMaxY() - ty);
}
}
// We could use Shape.accumulate, but that method optimizes the
// bounds for curves and the optimized code above will simply ask
// the path for its bounds - which in this case of a Path2D would
// simply accumulate all of the coordinates in the buffer. So,
// we write a simpler accumulator loop here to be consistent with
// the optimized case above.
float x0 = Float.POSITIVE_INFINITY;
float y0 = Float.POSITIVE_INFINITY;
float x1 = Float.NEGATIVE_INFINITY;
float y1 = Float.NEGATIVE_INFINITY;
PathIterator pi = path.getPathIterator(getInverseTransform());
while (!pi.isDone()) {
int ncoords = numCoords[pi.currentSegment(TEMP_COORDS)];
for (int i = 0; i < ncoords; i += 2) {
if (x0 > TEMP_COORDS[i+0]) x0 = TEMP_COORDS[i+0];
if (x1 < TEMP_COORDS[i+0]) x1 = TEMP_COORDS[i+0];
if (y0 > TEMP_COORDS[i+1]) y0 = TEMP_COORDS[i+1];
if (y1 < TEMP_COORDS[i+1]) y1 = TEMP_COORDS[i+1];
}
pi.next();
}
return new RectBounds(x0, y0, x1, y1);
}
@Override
public boolean contains(float x, float y) {
TEMP_COORDS[0] = x;
TEMP_COORDS[1] = y;
transform.transform(TEMP_COORDS, 0, TEMP_COORDS, 0, 1);
x = TEMP_COORDS[0];
y = TEMP_COORDS[1];
return path.contains(x, y);
}
@Override
public boolean intersects(float x, float y, float w, float h) {
if (transform.isTranslateOrIdentity()) {
x += transform.getMxt();
y += transform.getMyt();
return path.intersects(x, y, w, h);
}
PathIterator pi = path.getPathIterator(getInverseTransform());
int crossings = Shape.rectCrossingsForPath(pi, x, y, x+w, y+h);
// int mask = (windingRule == WIND_NON_ZERO ? -1 : 2);
// return (crossings == Shape.RECT_INTERSECTS ||
// (crossings & mask) != 0);
// with wind == NON_ZERO, then mask == -1 and
// since REC_INTERSECTS != 0, we simplify to:
return (crossings != 0);
}
@Override
public boolean contains(float x, float y, float w, float h) {
if (transform.isTranslateOrIdentity()) {
x += transform.getMxt();
y += transform.getMyt();
return path.contains(x, y, w, h);
}
PathIterator pi = path.getPathIterator(getInverseTransform());
int crossings = Shape.rectCrossingsForPath(pi, x, y, x+w, y+h);
// int mask = (windingRule == WIND_NON_ZERO ? -1 : 2);
// return (crossings != Shape.RECT_INTERSECTS &&
// (crossings & mask) != 0);
// with wind == NON_ZERO, then mask == -1 we simplify to:
return (crossings != Shape.RECT_INTERSECTS && crossings != 0);
}
public BaseTransform getCombinedTransform(BaseTransform tx) {
if (transform.isIdentity()) return tx;
if (transform.equals(tx)) return null;
Affine2D inv = getInverseTransform();
if (tx == null || tx.isIdentity()) return inv;
TEMP_PATH_TX.setTransform(tx);
TEMP_PATH_TX.concatenate(inv);
return TEMP_PATH_TX;
}
@Override
public PathIterator getPathIterator(BaseTransform tx) {
return path.getPathIterator(getCombinedTransform(tx));
}
@Override
public PathIterator getPathIterator(BaseTransform tx, float flatness) {
return path.getPathIterator(getCombinedTransform(tx), flatness);
}
@Override
public Shape copy() {
throw new UnsupportedOperationException("Not supported yet.");
}
};
private Affine2D getInverseTransform() {
if (inverseTransform == null) {
inverseTransform = new Affine2D();
inversedirty = true;
}
if (inversedirty) {
inverseTransform.setTransform(transform);
try {
inverseTransform.invert();
} catch (NoninvertibleTransformException e) {
inverseTransform.setToScale(0, 0);
}
inversedirty = false;
}
return inverseTransform;
}
@Override
protected boolean hasOverlappingContents() {
return true;
}
private static void shapebounds(Shape shape, RectBounds bounds,
BaseTransform transform)
{
TEMP_COORDS[0] = TEMP_COORDS[1] = Float.POSITIVE_INFINITY;
TEMP_COORDS[2] = TEMP_COORDS[3] = Float.NEGATIVE_INFINITY;
Shape.accumulate(TEMP_COORDS, shape, transform);
bounds.setBounds(TEMP_COORDS[0], TEMP_COORDS[1],
TEMP_COORDS[2], TEMP_COORDS[3]);
}
private static void strokebounds(BasicStroke stroke, Shape shape,
RectBounds bounds, BaseTransform transform)
{
TEMP_COORDS[0] = TEMP_COORDS[1] = Float.POSITIVE_INFINITY;
TEMP_COORDS[2] = TEMP_COORDS[3] = Float.NEGATIVE_INFINITY;
stroke.accumulateShapeBounds(TEMP_COORDS, shape, transform);
bounds.setBounds(TEMP_COORDS[0], TEMP_COORDS[1],
TEMP_COORDS[2], TEMP_COORDS[3]);
}
@Override
protected void renderContent(Graphics g) {
initCanvas(g);
if (cv.tex != null) {
if (thebuf != null) {
thebuf.switchToRead();
renderStream(thebuf);
thebuf.resetForWrite();
thebuf = null;
}
float dw = tw / highestPixelScale;
float dh = th / highestPixelScale;
g.drawTexture(cv.tex,
0, 0, dw, dh,
0, 0, tw, th);
// Must save the pixels every frame if RTT is volatile.
cv.save(g, tw, th);
}
this.temp.g = this.clip.g = this.cv.g = null;
}
private void initCanvas(Graphics g) {
if (tw <= 0 || th <= 0) {
cv.dispose();
return;
}
if (cv.validate(g, tw, th)) {
// If the texture was recreated then we add a permanent
// "useful" and extra "lock" status to it.
cv.tex.contentsUseful();
cv.tex.makePermanent();
cv.tex.lock();
}
}
private void initClip() {
if (clip.validate(cv.g, tw, th)) {
clip.tex.contentsUseful();
for (Path2D clippath : clipStack) {
renderClip(clippath);
}
}
}
private void renderClip(Path2D clippath) {
temp.validate(cv.g, tw, th);
temp.g.setPaint(Color.WHITE);
temp.g.setTransform(BaseTransform.IDENTITY_TRANSFORM);
temp.g.fill(clippath);
blendAthruBintoC(temp, Mode.SRC_IN, clip, null, CompositeMode.SRC, clip);
temp.tex.unlock();
}
private Rectangle applyEffectOnAintoC(Effect definput,
Effect effect,
BaseTransform transform,
Rectangle outputClip,
CompositeMode comp,
RenderBuf destbuf)
{
FilterContext fctx =
PrFilterContext.getInstance(destbuf.tex.getAssociatedScreen());
ImageData id =
effect.filter(fctx, transform, outputClip, null, definput);
Rectangle r = id.getUntransformedBounds();
Filterable f = id.getUntransformedImage();
Texture tex = ((PrTexture) f).getTextureObject();
destbuf.g.setTransform(id.getTransform());
destbuf.g.setCompositeMode(comp);
destbuf.g.drawTexture(tex, r.x, r.y, r.width, r.height);
destbuf.g.setTransform(BaseTransform.IDENTITY_TRANSFORM);
destbuf.g.setCompositeMode(CompositeMode.SRC_OVER);
Rectangle resultBounds = id.getTransformedBounds(outputClip);
id.unref();
return resultBounds;
}
private void blendAthruBintoC(RenderBuf drawbuf,
Mode mode,
RenderBuf clipbuf,
RectBounds bounds,
CompositeMode comp,
RenderBuf destbuf)
{
BLENDER.setTopInput(drawbuf.input);
BLENDER.setBottomInput(clipbuf.input);
BLENDER.setMode(mode);
Rectangle blendclip;
if (bounds != null) {
blendclip = new Rectangle(bounds);
} else {
blendclip = null;
}
applyEffectOnAintoC(null, BLENDER,
BaseTransform.IDENTITY_TRANSFORM, blendclip,
comp, destbuf);
}
private void setupFill(Graphics gr) {
gr.setPaint(fillPaint);
}
private BasicStroke getStroke() {
if (stroke == null) {
stroke = new BasicStroke(linewidth, linecap, linejoin,
miterlimit);
}
return stroke;
}
private void setupStroke(Graphics gr) {
gr.setStroke(getStroke());
gr.setPaint(strokePaint);
}
private static final int prcaps[] = {
BasicStroke.CAP_BUTT,
BasicStroke.CAP_ROUND,
BasicStroke.CAP_SQUARE,
};
private static final int prjoins[] = {
BasicStroke.JOIN_MITER,
BasicStroke.JOIN_ROUND,
BasicStroke.JOIN_BEVEL,
};
private static final int prbases[] = {
VPos.TOP.ordinal(),
VPos.CENTER.ordinal(),
VPos.BASELINE.ordinal(),
VPos.BOTTOM.ordinal(),
};
private static final Affine2D TEMP_TX = new Affine2D();
private void renderStream(GrowableDataBuffer buf) {
while (!buf.isEmpty()) {
int token = buf.getByte();
switch (token) {
case PATHSTART:
path.reset();
break;
case MOVETO:
path.moveTo(buf.getFloat(), buf.getFloat());
break;
case LINETO:
path.lineTo(buf.getFloat(), buf.getFloat());
break;
case QUADTO:
path.quadTo(buf.getFloat(), buf.getFloat(),
buf.getFloat(), buf.getFloat());
break;
case CUBICTO:
path.curveTo(buf.getFloat(), buf.getFloat(),
buf.getFloat(), buf.getFloat(),
buf.getFloat(), buf.getFloat());
break;
case CLOSEPATH:
path.closePath();
break;
case PATHEND:
if (highestPixelScale != 1.0f) {
TEMP_TX.setToScale(highestPixelScale, highestPixelScale);
path.transform(TEMP_TX);
}
break;
case PUSH_CLIP:
{
Path2D clippath = (Path2D) buf.getObject();
if (highestPixelScale != 1.0f) {
TEMP_TX.setToScale(highestPixelScale, highestPixelScale);
clippath.transform(TEMP_TX);
}
initClip();
renderClip(clippath);
clipStack.addLast(clippath);
break;
}
case POP_CLIP:
// Let it be recreated when next needed
clip.dispose();
clipStack.removeLast();
break;
case ARC_TYPE:
{
byte type = buf.getByte();
switch (type) {
case ARC_OPEN: arctype = Arc2D.OPEN; break;
case ARC_CHORD: arctype = Arc2D.CHORD; break;
case ARC_PIE: arctype = Arc2D.PIE; break;
}
break;
}
case PUT_ARGB:
{
float dx1 = buf.getInt();
float dy1 = buf.getInt();
int argb = buf.getInt();
TMP_IMAGE.setArgb(0, 0, argb);
Graphics gr = cv.g;
gr.setExtraAlpha(1.0f);
gr.setCompositeMode(CompositeMode.SRC);
gr.setTransform(BaseTransform.IDENTITY_TRANSFORM);
ResourceFactory factory = gr.getResourceFactory();
Texture tex =
factory.getCachedTexture(TMP_IMAGE, Texture.WrapMode.CLAMP_TO_EDGE);
dx1 *= highestPixelScale;
dy1 *= highestPixelScale;
gr.drawTexture(tex,
dx1, dy1, dx1 + highestPixelScale, dy1 + highestPixelScale,
0, 0, 1, 1);
tex.contentsNotUseful();
tex.unlock();
break;
}
case PUT_ARGBPRE_BUF:
{
float dx1 = buf.getInt();
float dy1 = buf.getInt();
int w = buf.getInt();
int h = buf.getInt();
byte[] data = (byte[]) buf.getObject();
Image img = Image.fromByteBgraPreData(data, w, h);
Graphics gr = cv.g;
ResourceFactory factory = gr.getResourceFactory();
Texture tex =
factory.getCachedTexture(img, Texture.WrapMode.CLAMP_TO_EDGE);
gr.setTransform(BaseTransform.IDENTITY_TRANSFORM);
gr.setCompositeMode(CompositeMode.SRC);
float dx2 = dx1 + w;
float dy2 = dy1 + h;
dx1 *= highestPixelScale;
dy1 *= highestPixelScale;
dx2 *= highestPixelScale;
dy2 *= highestPixelScale;
gr.drawTexture(tex,
dx1, dy1, dx2, dy2,
0, 0, w, h);
tex.contentsNotUseful();
tex.unlock();
gr.setCompositeMode(CompositeMode.SRC_OVER);
break;
}
case TRANSFORM:
{
double mxx = buf.getDouble() * highestPixelScale;
double mxy = buf.getDouble() * highestPixelScale;
double mxt = buf.getDouble() * highestPixelScale;
double myx = buf.getDouble() * highestPixelScale;
double myy = buf.getDouble() * highestPixelScale;
double myt = buf.getDouble() * highestPixelScale;
transform.setTransform(mxx, myx, mxy, myy, mxt, myt);
inversedirty = true;
break;
}
case GLOBAL_ALPHA:
globalAlpha = buf.getFloat();
break;
case FILL_RULE:
fillRule = buf.getByte();
if (fillRule == PGCanvas.FILL_RULE_NON_ZERO) {
path.setWindingRule(Path2D.WIND_NON_ZERO);
} else {
path.setWindingRule(Path2D.WIND_EVEN_ODD);
}
break;
case COMP_MODE:
blendmode = (Blend.Mode)buf.getObject();
break;
case FILL_PAINT:
fillPaint = (Paint) buf.getObject();
break;
case STROKE_PAINT:
strokePaint = (Paint) buf.getObject();
break;
case LINE_WIDTH:
linewidth = buf.getFloat();
stroke = null;
break;
case LINE_CAP:
linecap = prcaps[buf.getUByte()];
stroke = null;
break;
case LINE_JOIN:
linejoin = prjoins[buf.getUByte()];
stroke = null;
break;
case MITER_LIMIT:
miterlimit = buf.getFloat();
stroke = null;
break;
case FONT:
{
pgfont = (PGFont) buf.getObject();
break;
}
case TEXT_ALIGN:
align = buf.getUByte();
break;
case TEXT_BASELINE:
baseline = prbases[buf.getUByte()];
break;
case FX_APPLY_EFFECT:
{
Effect e = (Effect) buf.getObject();
RenderBuf dest = clipStack.isEmpty() ? cv : temp;
BaseTransform tx;
if (highestPixelScale != 1.0f) {
TEMP_TX.setToScale(highestPixelScale, highestPixelScale);
tx = TEMP_TX;
cv.input.setPixelScale(highestPixelScale);
} else {
tx = BaseTransform.IDENTITY_TRANSFORM;
}
applyEffectOnAintoC(cv.input, e,
tx, null,
CompositeMode.SRC, dest);
cv.input.setPixelScale(1.0f);
if (dest != cv) {
blendAthruBintoC(dest, Mode.SRC_IN, clip,
null, CompositeMode.SRC, cv);
}
break;
}
case EFFECT:
effect = (Effect) buf.getObject();
break;
case FILL_PATH:
case STROKE_PATH:
case STROKE_LINE:
case FILL_RECT:
case CLEAR_RECT:
case STROKE_RECT:
case FILL_OVAL:
case STROKE_OVAL:
case FILL_ROUND_RECT:
case STROKE_ROUND_RECT:
case FILL_ARC:
case STROKE_ARC:
case DRAW_IMAGE:
case DRAW_SUBIMAGE:
case FILL_TEXT:
case STROKE_TEXT:
{
RenderBuf dest;
if (!clipStack.isEmpty()) {
initClip();
temp.validate(cv.g, tw, th);
dest = temp;
} else if (blendmode != Blend.Mode.SRC_OVER) {
temp.validate(cv.g, tw, th);
dest = temp;
} else {
dest = cv;
}
if (effect != null) {
buf.save();
handleRenderOp(token, buf, null, TEMP_RECTBOUNDS);
RenderInput ri =
new RenderInput(token, buf, transform, TEMP_RECTBOUNDS);
// If we are rendering to cv then we need the results of
// the effect to be applied "SRC_OVER" onto the canvas.
// If we are rendering to temp then either SRC or SRC_OVER
// would work since we know it would have been freshly
// erased above, but using the more common SRC_OVER may save
// having to update the hardware blend equations.
Rectangle resultBounds =
applyEffectOnAintoC(ri, effect,
transform, null,
CompositeMode.SRC_OVER, dest);
if (dest != cv) {
TEMP_RECTBOUNDS.setBounds(resultBounds.x, resultBounds.y,
resultBounds.x + resultBounds.width,
resultBounds.y + resultBounds.height);
}
} else {
Graphics g = dest.g;
g.setExtraAlpha(globalAlpha);
g.setTransform(transform);
// If we are not rendering directly to the canvas then
// we need to save the bounds for the later stages.
RectBounds optSaveBounds =
(dest != cv) ? TEMP_RECTBOUNDS : null;
handleRenderOp(token, buf, g, optSaveBounds);
}
if (!clipStack.isEmpty()) {
CompositeMode compmode;
if (blendmode == Blend.Mode.SRC_OVER) {
// For the SRC_OVER case we can point the clip
// operation directly to the screen with the Prism
// SRC_OVER composite mode.
dest = cv;
compmode = CompositeMode.SRC_OVER;
} else {
// Here we are blending the rendered pixels that
// were output to the temp buffer above against the
// pixels of the canvas and we need to put them
// back into the temp buffer. We must use SRC
// mode here so that the erased (or reduced) pixels
// actually get reduced to their new alpha.
// assert: dest == temp;
compmode = CompositeMode.SRC;
}
blendAthruBintoC(temp, Mode.SRC_IN, clip,
TEMP_RECTBOUNDS, compmode, dest);
clip.tex.unlock();
if (dest != temp) {
temp.tex.unlock();
}
}
if (blendmode != Blend.Mode.SRC_OVER) {
// We always use SRC mode here because the results of
// the blend operation are final and must replace
// the associated pixel in the canvas with no further
// blending math.
blendAthruBintoC(temp, blendmode, cv,
TEMP_RECTBOUNDS, CompositeMode.SRC, cv);
}
break;
}
default:
throw new InternalError("Unrecognized PGCanvas token: "+token);
}
}
}
/**
* Calculate bounds and/or render one single rendering operation.
* All of the data for the rendering operation should be consumed
* so that the buffer is left at the next token in the stream.
*
* @param token the stream token for the rendering op
* @param buf the GrowableDataBuffer to get rendering info from
* @param gr the Graphics to render to, if not null
* @param bounds the RectBounds to accumulate bounds into, if not null
*/
public void handleRenderOp(int token, GrowableDataBuffer buf,
Graphics gr, RectBounds bounds)
{
boolean strokeBounds = false;
boolean transformBounds = false;
switch (token) {
case FILL_PATH:
{
if (bounds != null) {
shapebounds(path, bounds, BaseTransform.IDENTITY_TRANSFORM);
}
if (gr != null) {
setupFill(gr);
gr.fill(untransformedPath);
}
break;
}
case STROKE_PATH:
{
if (bounds != null) {
strokebounds(getStroke(), untransformedPath, bounds, transform);
}
if (gr != null) {
setupStroke(gr);
gr.draw(untransformedPath);
}
break;
}
case STROKE_LINE:
{
float x1 = buf.getFloat();
float y1 = buf.getFloat();
float x2 = buf.getFloat();
float y2 = buf.getFloat();
if (bounds != null) {
bounds.setBoundsAndSort(x1, y1, x2, y2);
strokeBounds = true;
transformBounds = true;
}
if (gr != null) {
setupStroke(gr);
gr.drawLine(x1, y1, x2, y2);
}
break;
}
case STROKE_RECT:
case STROKE_OVAL:
strokeBounds = true;
case FILL_RECT:
case CLEAR_RECT:
case FILL_OVAL:
{
float x = buf.getFloat();
float y = buf.getFloat();
float w = buf.getFloat();
float h = buf.getFloat();
if (bounds != null) {
bounds.setBounds(x, y, x+w, y+h);
transformBounds = true;
}
if (gr != null) {
switch (token) {
case FILL_RECT:
setupFill(gr);
gr.fillRect(x, y, w, h);
break;
case FILL_OVAL:
setupFill(gr);
gr.fillEllipse(x, y, w, h);
break;
case STROKE_RECT:
setupStroke(gr);
gr.drawRect(x, y, w, h);
break;
case STROKE_OVAL:
setupStroke(gr);
gr.drawEllipse(x, y, w, h);
break;
case CLEAR_RECT:
gr.setPaint(Color.TRANSPARENT);
gr.setCompositeMode(CompositeMode.SRC);
gr.fillRect(x, y, w, h);
gr.setCompositeMode(CompositeMode.SRC_OVER);
break;
}
}
break;
}
case STROKE_ROUND_RECT:
strokeBounds = true;
case FILL_ROUND_RECT:
{
float x = buf.getFloat();
float y = buf.getFloat();
float w = buf.getFloat();
float h = buf.getFloat();
float aw = buf.getFloat();
float ah = buf.getFloat();
if (bounds != null) {
bounds.setBounds(x, y, x+w, y+h);
transformBounds = true;
}
if (gr != null) {
if (token == FILL_ROUND_RECT) {
setupFill(gr);
gr.fillRoundRect(x, y, w, h, aw, ah);
} else {
setupStroke(gr);
gr.drawRoundRect(x, y, w, h, aw, ah);
}
}
break;
}
case FILL_ARC:
case STROKE_ARC:
{
float x = buf.getFloat();
float y = buf.getFloat();
float w = buf.getFloat();
float h = buf.getFloat();
float as = buf.getFloat();
float ae = buf.getFloat();
TEMP_ARC.setArc(x, y, w, h, as, ae, arctype);
if (token == FILL_ARC) {
if (bounds != null) {
shapebounds(TEMP_ARC, bounds, transform);
}
if (gr != null) {
setupFill(gr);
gr.fill(TEMP_ARC);
}
} else {
if (bounds != null) {
strokebounds(getStroke(), TEMP_ARC, bounds, transform);
}
if (gr != null) {
setupStroke(gr);
gr.draw(TEMP_ARC);
}
}
break;
}
case DRAW_IMAGE:
case DRAW_SUBIMAGE:
{
float dx = buf.getFloat();
float dy = buf.getFloat();
float dw = buf.getFloat();
float dh = buf.getFloat();
Image img = (Image) buf.getObject();
float sx, sy, sw, sh;
if (token == DRAW_IMAGE) {
sx = sy = 0f;
sw = img.getWidth();
sh = img.getHeight();
} else {
sx = buf.getFloat();
sy = buf.getFloat();
sw = buf.getFloat();
sh = buf.getFloat();
float ps = img.getPixelScale();
if (ps != 1.0f) {
sx *= ps;
sy *= ps;
sw *= ps;
sh *= ps;
}
}
if (bounds != null) {
bounds.setBounds(dx, dy, dx+dw, dy+dh);
transformBounds = true;
}
if (gr != null) {
ResourceFactory factory = gr.getResourceFactory();
Texture tex =
factory.getCachedTexture(img, Texture.WrapMode.CLAMP_TO_EDGE);
gr.drawTexture(tex,
dx, dy, dx+dw, dy+dh,
sx, sy, sx+sw, sy+sh);
tex.unlock();
}
break;
}
case FILL_TEXT:
case STROKE_TEXT:
{
float x = buf.getFloat();
float y = buf.getFloat();
float maxWidth = buf.getFloat();
String string = (String) buf.getObject();
textLayout.setContent(string, pgfont);
textLayout.setAlignment(align);
float xAlign = 0, yAlign = 0;
BaseBounds layoutBounds = textLayout.getBounds();
float layoutWidth = layoutBounds.getWidth();
float layoutHeight = layoutBounds.getHeight();
switch (align) {
case ALIGN_RIGHT: xAlign = layoutWidth; break;
case ALIGN_CENTER: xAlign = layoutWidth / 2; break;
}
switch (baseline) {
case BASE_ALPHABETIC: yAlign = -layoutBounds.getMinY(); break;
case BASE_MIDDLE: yAlign = layoutHeight / 2; break;
case BASE_BOTTOM: yAlign = layoutHeight; break;
}
if (bounds != null) {
TEMP_TX.setTransform(transform);
if (maxWidth > 0.0 && layoutWidth > maxWidth) {
float sx = maxWidth / layoutWidth;
TEMP_TX.translate(x - xAlign * sx, y - yAlign);
TEMP_TX.scale(sx, 1);
} else {
TEMP_TX.translate(x - xAlign, y - yAlign);
}
textLayout.getBounds(null, bounds);
TEMP_TX.transform(bounds, bounds);
if (token == STROKE_TEXT) {
int flag = PrismTextLayout.TYPE_TEXT;
Shape textShape = textLayout.getShape(flag, null);
RectBounds shapeBounds = new RectBounds();
strokebounds(getStroke(), textShape, shapeBounds, TEMP_TX);
bounds.unionWith(shapeBounds);
}
}
if (gr != null) {
if (maxWidth > 0.0 && layoutWidth > maxWidth) {
float sx = maxWidth / layoutWidth;
gr.translate(x - xAlign * sx, y - yAlign);
gr.scale(sx, 1);
ngtext.setLayoutLocation(0, 0);
} else {
ngtext.setLayoutLocation(xAlign - x, yAlign - y);
}
if (token == FILL_TEXT) {
ngtext.setMode(PGShape.Mode.FILL);
ngtext.setFillPaint(fillPaint);
} else {
ngtext.setMode(PGShape.Mode.STROKE);
ngtext.setDrawStroke(getStroke());
ngtext.setDrawPaint(strokePaint);
}
ngtext.setFont(pgfont);
ngtext.setGlyphs(textLayout.getRuns());
ngtext.renderContent(gr);
}
break;
}
default:
throw new InternalError("Unrecognized PGCanvas rendering token: "+token);
}
if (bounds != null) {
if (strokeBounds) {
BasicStroke s = getStroke();
if (s.getType() != BasicStroke.TYPE_INNER) {
float lw = s.getLineWidth();
if (s.getType() == BasicStroke.TYPE_CENTERED) {
lw /= 2f;
}
bounds.grow(lw, lw);
}
}
if (transformBounds) {
txBounds(bounds, transform);
}
}
}
static void txBounds(RectBounds bounds, BaseTransform transform) {
switch (transform.getType()) {
case BaseTransform.TYPE_IDENTITY:
break;
case BaseTransform.TYPE_TRANSLATION:
float tx = (float) transform.getMxt();
float ty = (float) transform.getMyt();
bounds.setBounds(bounds.getMinX() + tx, bounds.getMinY() + ty,
bounds.getMaxX() + tx, bounds.getMaxY() + ty);
break;
default:
BaseBounds txbounds = transform.transform(bounds, bounds);
if (txbounds != bounds) {
bounds.setBounds(txbounds.getMinX(), txbounds.getMinY(),
txbounds.getMaxX(), txbounds.getMaxY());
}
break;
}
}
static void inverseTxBounds(RectBounds bounds, BaseTransform transform) {
switch (transform.getType()) {
case BaseTransform.TYPE_IDENTITY:
break;
case BaseTransform.TYPE_TRANSLATION:
float tx = (float) transform.getMxt();
float ty = (float) transform.getMyt();
bounds.setBounds(bounds.getMinX() - tx, bounds.getMinY() - ty,
bounds.getMaxX() - tx, bounds.getMaxY() - ty);
break;
default:
try {
BaseBounds txbounds = transform.inverseTransform(bounds, bounds);
if (txbounds != bounds) {
bounds.setBounds(txbounds.getMinX(), txbounds.getMinY(),
txbounds.getMaxX(), txbounds.getMaxY());
}
} catch (NoninvertibleTransformException e) {
bounds.makeEmpty();
}
break;
}
}
public void updateBounds(float w, float h) {
this.tw = (int) Math.ceil(w * highestPixelScale);
this.th = (int) Math.ceil(h * highestPixelScale);
geometryChanged();
}
public void updateRendering(GrowableDataBuffer buf) {
this.thebuf = buf;
geometryChanged();
}
class RenderInput extends Effect {
float x, y, w, h;
int token;
GrowableDataBuffer buf;
Affine2D savedBoundsTx = new Affine2D();
public RenderInput(int token, GrowableDataBuffer buf,
BaseTransform boundsTx, RectBounds rb)
{
this.token = token;
this.buf = buf;
savedBoundsTx.setTransform(boundsTx);
this.x = rb.getMinX();
this.y = rb.getMinY();
this.w = rb.getWidth();
this.h = rb.getHeight();
}
@Override
public ImageData filter(FilterContext fctx, BaseTransform transform,
Rectangle outputClip, Object renderHelper,
Effect defaultInput)
{
BaseBounds bounds = getBounds(transform, defaultInput);
if (outputClip != null) {
bounds.intersectWith(outputClip);
}
Rectangle r = new Rectangle(bounds);
if (r.width < 1) r.width = 1;
if (r.height < 1) r.height = 1;
PrDrawable ret = (PrDrawable) Effect.getCompatibleImage(fctx, r.width, r.height);
if (ret != null) {
Graphics g = ret.createGraphics();
g.setExtraAlpha(globalAlpha);
g.translate(-r.x, -r.y);
if (transform != null) {
g.transform(transform);
}
buf.restore();
handleRenderOp(token, buf, g, null);
}
return new ImageData(fctx, ret, r);
}
@Override
public AccelType getAccelType(FilterContext fctx) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public BaseBounds getBounds(BaseTransform transform, Effect defaultInput) {
RectBounds ret = new RectBounds(x, y, x + w, y + h);
if (!transform.equals(savedBoundsTx)) {
inverseTxBounds(ret, savedBoundsTx);
txBounds(ret, transform);
}
return ret;
}
@Override
public boolean reducesOpaquePixels() {
return false;
}
@Override
public DirtyRegionContainer getDirtyRegions(Effect defaultInput, DirtyRegionPool regionPool) {
return null; // Never called
}
}
static class MyBlend extends Blend {
public MyBlend(Mode mode, Effect bottomInput, Effect topInput) {
super(mode, bottomInput, topInput);
}
@Override
public Rectangle getResultBounds(BaseTransform transform,
Rectangle outputClip,
ImageData... inputDatas)
{
// There is a bug in the ImageData class that means that the
// outputClip will not be taken into account, so we override
// here and apply it ourselves.
Rectangle r = super.getResultBounds(transform, outputClip, inputDatas);
r.intersectWith(outputClip);
return r;
}
}
static class EffectInput extends Effect {
RTTexture tex;
float pixelscale;
EffectInput(RTTexture tex) {
this.tex = tex;
this.pixelscale = 1.0f;
}
public void setPixelScale(float scale) {
this.pixelscale = scale;
}
@Override
public ImageData filter(FilterContext fctx, BaseTransform transform,
Rectangle outputClip, Object renderHelper,
Effect defaultInput)
{
Filterable f = PrDrawable.create(fctx, tex);
Rectangle r = new Rectangle(tex.getContentWidth(), tex.getContentHeight());
ImageData id = new ImageData(fctx, f, r);
if (pixelscale != 1.0f || !transform.isIdentity()) {
Affine2D a2d = new Affine2D();
a2d.scale(1.0f / pixelscale, 1.0f / pixelscale);
a2d.concatenate(transform);
id = id.transform(a2d);
}
return id;
}
@Override
public AccelType getAccelType(FilterContext fctx) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public BaseBounds getBounds(BaseTransform transform, Effect defaultInput) {
Rectangle r = new Rectangle(tex.getContentWidth(), tex.getContentHeight());
return transformBounds(transform, new RectBounds(r));
}
@Override
public boolean reducesOpaquePixels() {
return false;
}
@Override
public DirtyRegionContainer getDirtyRegions(Effect defaultInput, DirtyRegionPool regionPool) {
return null; // Never called
}
}
}
