56 double incYAcross;
57 double incXDown;
58 double incYDown;
59
60 int colincx;
61 int colincy;
62 int colincxerr;
63 int colincyerr;
64 int rowincx;
65 int rowincy;
66 int rowincxerr;
67 int rowincyerr;
68
69 public static PaintContext getContext(BufferedImage bufImg,
70 AffineTransform xform,
71 RenderingHints hints,
72 Rectangle devBounds) {
73 WritableRaster raster = bufImg.getRaster();
74 ColorModel cm = bufImg.getColorModel();
75 int maxw = devBounds.width;
76 Object val = hints.get(hints.KEY_INTERPOLATION);
77 boolean filter =
78 (val == null
79 ? (hints.get(hints.KEY_RENDERING) == hints.VALUE_RENDER_QUALITY)
80 : (val != hints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR));
81 if (raster instanceof IntegerInterleavedRaster &&
82 (!filter || isFilterableDCM(cm)))
83 {
84 IntegerInterleavedRaster iir = (IntegerInterleavedRaster) raster;
85 if (iir.getNumDataElements() == 1 && iir.getPixelStride() == 1) {
86 return new Int(iir, cm, xform, maxw, filter);
87 }
88 } else if (raster instanceof ByteInterleavedRaster) {
89 ByteInterleavedRaster bir = (ByteInterleavedRaster) raster;
90 if (bir.getNumDataElements() == 1 && bir.getPixelStride() == 1) {
91 if (filter) {
92 if (isFilterableICM(cm)) {
93 return new ByteFilter(bir, cm, xform, maxw);
94 }
95 } else {
96 return new Byte(bir, cm, xform, maxw);
97 }
98 }
99 }
100 return new Any(raster, cm, xform, maxw, filter);
217 outRas.getHeight() < h)
218 {
219 // If h==1, we will probably get lots of "scanline" rects
220 outRas = makeRaster((h == 1 ? Math.max(w, maxWidth) : w), h);
221 }
222 double X = mod(xOrg + x * incXAcross + y * incXDown, bWidth);
223 double Y = mod(yOrg + x * incYAcross + y * incYDown, bHeight);
224
225 setRaster((int) X, (int) Y, fractAsInt(X), fractAsInt(Y),
226 w, h, bWidth, bHeight,
227 colincx, colincxerr,
228 colincy, colincyerr,
229 rowincx, rowincxerr,
230 rowincy, rowincyerr);
231
232 SunWritableRaster.markDirty(outRas);
233
234 return outRas;
235 }
236
237 private static WeakReference xrgbRasRef;
238 private static WeakReference argbRasRef;
239
240 synchronized static WritableRaster makeRaster(ColorModel cm,
241 Raster srcRas,
242 int w, int h)
243 {
244 if (xrgbmodel == cm) {
245 if (xrgbRasRef != null) {
246 WritableRaster wr = (WritableRaster) xrgbRasRef.get();
247 if (wr != null && wr.getWidth() >= w && wr.getHeight() >= h) {
248 xrgbRasRef = null;
249 return wr;
250 }
251 }
252 // If we are going to cache this Raster, make it non-tiny
253 if (w <= 32 && h <= 32) {
254 w = h = 32;
255 }
256 } else if (argbmodel == cm) {
257 if (argbRasRef != null) {
258 WritableRaster wr = (WritableRaster) argbRasRef.get();
261 return wr;
262 }
263 }
264 // If we are going to cache this Raster, make it non-tiny
265 if (w <= 32 && h <= 32) {
266 w = h = 32;
267 }
268 }
269 if (srcRas != null) {
270 return srcRas.createCompatibleWritableRaster(w, h);
271 } else {
272 return cm.createCompatibleWritableRaster(w, h);
273 }
274 }
275
276 synchronized static void dropRaster(ColorModel cm, Raster outRas) {
277 if (outRas == null) {
278 return;
279 }
280 if (xrgbmodel == cm) {
281 xrgbRasRef = new WeakReference(outRas);
282 } else if (argbmodel == cm) {
283 argbRasRef = new WeakReference(outRas);
284 }
285 }
286
287 private static WeakReference byteRasRef;
288
289 synchronized static WritableRaster makeByteRaster(Raster srcRas,
290 int w, int h)
291 {
292 if (byteRasRef != null) {
293 WritableRaster wr = (WritableRaster) byteRasRef.get();
294 if (wr != null && wr.getWidth() >= w && wr.getHeight() >= h) {
295 byteRasRef = null;
296 return wr;
297 }
298 }
299 // If we are going to cache this Raster, make it non-tiny
300 if (w <= 32 && h <= 32) {
301 w = h = 32;
302 }
303 return srcRas.createCompatibleWritableRaster(w, h);
304 }
305
306 synchronized static void dropByteRaster(Raster outRas) {
307 if (outRas == null) {
308 return;
309 }
310 byteRasRef = new WeakReference(outRas);
311 }
312
313 public abstract WritableRaster makeRaster(int w, int h);
314 public abstract void setRaster(int x, int y, int xerr, int yerr,
315 int w, int h, int bWidth, int bHeight,
316 int colincx, int colincxerr,
317 int colincy, int colincyerr,
318 int rowincx, int rowincxerr,
319 int rowincy, int rowincyerr);
320
321 /*
322 * Blends the four ARGB values in the rgbs array using the factors
323 * described by xmul and ymul in the following ratio:
324 *
325 * rgbs[0] * (1-xmul) * (1-ymul) +
326 * rgbs[1] * ( xmul) * (1-ymul) +
327 * rgbs[2] * (1-xmul) * ( ymul) +
328 * rgbs[3] * ( xmul) * ( ymul)
329 *
330 * xmul and ymul are integer values in the half-open range [0, 2^31)
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56 double incYAcross;
57 double incXDown;
58 double incYDown;
59
60 int colincx;
61 int colincy;
62 int colincxerr;
63 int colincyerr;
64 int rowincx;
65 int rowincy;
66 int rowincxerr;
67 int rowincyerr;
68
69 public static PaintContext getContext(BufferedImage bufImg,
70 AffineTransform xform,
71 RenderingHints hints,
72 Rectangle devBounds) {
73 WritableRaster raster = bufImg.getRaster();
74 ColorModel cm = bufImg.getColorModel();
75 int maxw = devBounds.width;
76 Object val = hints.get(RenderingHints.KEY_INTERPOLATION);
77 boolean filter =
78 (val == null
79 ? (hints.get(RenderingHints.KEY_RENDERING) == RenderingHints.VALUE_RENDER_QUALITY)
80 : (val != RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR));
81 if (raster instanceof IntegerInterleavedRaster &&
82 (!filter || isFilterableDCM(cm)))
83 {
84 IntegerInterleavedRaster iir = (IntegerInterleavedRaster) raster;
85 if (iir.getNumDataElements() == 1 && iir.getPixelStride() == 1) {
86 return new Int(iir, cm, xform, maxw, filter);
87 }
88 } else if (raster instanceof ByteInterleavedRaster) {
89 ByteInterleavedRaster bir = (ByteInterleavedRaster) raster;
90 if (bir.getNumDataElements() == 1 && bir.getPixelStride() == 1) {
91 if (filter) {
92 if (isFilterableICM(cm)) {
93 return new ByteFilter(bir, cm, xform, maxw);
94 }
95 } else {
96 return new Byte(bir, cm, xform, maxw);
97 }
98 }
99 }
100 return new Any(raster, cm, xform, maxw, filter);
217 outRas.getHeight() < h)
218 {
219 // If h==1, we will probably get lots of "scanline" rects
220 outRas = makeRaster((h == 1 ? Math.max(w, maxWidth) : w), h);
221 }
222 double X = mod(xOrg + x * incXAcross + y * incXDown, bWidth);
223 double Y = mod(yOrg + x * incYAcross + y * incYDown, bHeight);
224
225 setRaster((int) X, (int) Y, fractAsInt(X), fractAsInt(Y),
226 w, h, bWidth, bHeight,
227 colincx, colincxerr,
228 colincy, colincyerr,
229 rowincx, rowincxerr,
230 rowincy, rowincyerr);
231
232 SunWritableRaster.markDirty(outRas);
233
234 return outRas;
235 }
236
237 private static WeakReference<Raster> xrgbRasRef;
238 private static WeakReference<Raster> argbRasRef;
239
240 synchronized static WritableRaster makeRaster(ColorModel cm,
241 Raster srcRas,
242 int w, int h)
243 {
244 if (xrgbmodel == cm) {
245 if (xrgbRasRef != null) {
246 WritableRaster wr = (WritableRaster) xrgbRasRef.get();
247 if (wr != null && wr.getWidth() >= w && wr.getHeight() >= h) {
248 xrgbRasRef = null;
249 return wr;
250 }
251 }
252 // If we are going to cache this Raster, make it non-tiny
253 if (w <= 32 && h <= 32) {
254 w = h = 32;
255 }
256 } else if (argbmodel == cm) {
257 if (argbRasRef != null) {
258 WritableRaster wr = (WritableRaster) argbRasRef.get();
261 return wr;
262 }
263 }
264 // If we are going to cache this Raster, make it non-tiny
265 if (w <= 32 && h <= 32) {
266 w = h = 32;
267 }
268 }
269 if (srcRas != null) {
270 return srcRas.createCompatibleWritableRaster(w, h);
271 } else {
272 return cm.createCompatibleWritableRaster(w, h);
273 }
274 }
275
276 synchronized static void dropRaster(ColorModel cm, Raster outRas) {
277 if (outRas == null) {
278 return;
279 }
280 if (xrgbmodel == cm) {
281 xrgbRasRef = new WeakReference<>(outRas);
282 } else if (argbmodel == cm) {
283 argbRasRef = new WeakReference<>(outRas);
284 }
285 }
286
287 private static WeakReference<Raster> byteRasRef;
288
289 synchronized static WritableRaster makeByteRaster(Raster srcRas,
290 int w, int h)
291 {
292 if (byteRasRef != null) {
293 WritableRaster wr = (WritableRaster) byteRasRef.get();
294 if (wr != null && wr.getWidth() >= w && wr.getHeight() >= h) {
295 byteRasRef = null;
296 return wr;
297 }
298 }
299 // If we are going to cache this Raster, make it non-tiny
300 if (w <= 32 && h <= 32) {
301 w = h = 32;
302 }
303 return srcRas.createCompatibleWritableRaster(w, h);
304 }
305
306 synchronized static void dropByteRaster(Raster outRas) {
307 if (outRas == null) {
308 return;
309 }
310 byteRasRef = new WeakReference<>(outRas);
311 }
312
313 public abstract WritableRaster makeRaster(int w, int h);
314 public abstract void setRaster(int x, int y, int xerr, int yerr,
315 int w, int h, int bWidth, int bHeight,
316 int colincx, int colincxerr,
317 int colincy, int colincyerr,
318 int rowincx, int rowincxerr,
319 int rowincy, int rowincyerr);
320
321 /*
322 * Blends the four ARGB values in the rgbs array using the factors
323 * described by xmul and ymul in the following ratio:
324 *
325 * rgbs[0] * (1-xmul) * (1-ymul) +
326 * rgbs[1] * ( xmul) * (1-ymul) +
327 * rgbs[2] * (1-xmul) * ( ymul) +
328 * rgbs[3] * ( xmul) * ( ymul)
329 *
330 * xmul and ymul are integer values in the half-open range [0, 2^31)
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