1 /*
2 * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #import <JavaNativeFoundation/JavaNativeFoundation.h>
27 #import "java_awt_geom_PathIterator.h"
28 #import "sun_font_CStrike.h"
29 #import "sun_font_CStrikeDisposer.h"
30 #import "CGGlyphImages.h"
31 #import "CGGlyphOutlines.h"
32 #import "CoreTextSupport.h"
33 #include "fontscalerdefs.h"
34
35 /* Use THIS_FILE when it is available. */
36 #ifndef THIS_FILE
37 #define THIS_FILE __FILE__
38 #endif
39
40 @implementation AWTStrike
41
42 static CGAffineTransform sInverseTX = { 1, 0, 0, -1, 0, 0 };
43
44 - (id) initWithFont:(AWTFont *)awtFont
45 tx:(CGAffineTransform)tx
46 invDevTx:(CGAffineTransform)invDevTx
47 style:(JRSFontRenderingStyle)style
48 aaStyle:(jint)aaStyle {
49
50 self = [super init];
51 if (self) {
52 fAWTFont = [awtFont retain];
53 fStyle = style;
54 fAAStyle = aaStyle;
55
56 fTx = tx; // composited glyph and device transform
57
58 fAltTx = tx;
59 fAltTx.b *= -1;
60 fAltTx.d *= -1;
61
62 invDevTx.b *= -1;
63 invDevTx.c *= -1;
64 fFontTx = CGAffineTransformConcat(CGAffineTransformConcat(tx, invDevTx), sInverseTX);
65 fDevTx = CGAffineTransformInvert(CGAffineTransformConcat(invDevTx, sInverseTX));
66
67 // the "font size" is the square root of the determinant of the matrix
68 fSize = sqrt(fabs(fFontTx.a * fFontTx.d - fFontTx.b * fFontTx.c));
69 }
70 return self;
71 }
72
73 - (void) dealloc {
74 [fAWTFont release];
75 fAWTFont = nil;
76
77 [super dealloc];
78 }
79
80 + (AWTStrike *) awtStrikeForFont:(AWTFont *)awtFont
81 tx:(CGAffineTransform)tx
82 invDevTx:(CGAffineTransform)invDevTx
83 style:(JRSFontRenderingStyle)style
84 aaStyle:(jint)aaStyle {
85
86 return [[[AWTStrike alloc] initWithFont:awtFont
87 tx:tx invDevTx:invDevTx
88 style:style
89 aaStyle:aaStyle] autorelease];
90 }
91
92 @end
93
94
95 #define AWT_FONT_CLEANUP_SETUP \
96 BOOL _fontThrowJavaException = NO;
97
98 #define AWT_FONT_CLEANUP_CHECK(a) \
99 if ((a) == NULL) { \
100 _fontThrowJavaException = YES; \
101 goto cleanup; \
102 } \
103 if ((*env)->ExceptionCheck(env) == JNI_TRUE) { \
104 goto cleanup; \
105 }
106
107 #define AWT_FONT_CLEANUP_FINISH \
108 if (_fontThrowJavaException == YES) { \
109 char s[512]; \
110 sprintf(s, "%s-%s:%d", THIS_FILE, __FUNCTION__, __LINE__); \
111 [JNFException raise:env as:kRuntimeException reason:s]; \
112 }
113
114
115 /*
116 * Creates an affine transform from the corresponding doubles sent
117 * from CStrike.getGlyphTx().
118 */
119 static inline CGAffineTransform
120 GetTxFromDoubles(JNIEnv *env, jdoubleArray txArray)
121 {
122 if (txArray == NULL) {
123 return CGAffineTransformIdentity;
124 }
125
126 jdouble *txPtr = (*env)->GetPrimitiveArrayCritical(env, txArray, NULL);
127 if (txPtr == NULL) {
128 return CGAffineTransformIdentity;
129 }
130
131 CGAffineTransform tx =
132 CGAffineTransformMake(txPtr[0], txPtr[1], txPtr[2],
133 txPtr[3], txPtr[4], txPtr[5]);
134 tx = CGAffineTransformConcat(sInverseTX, tx);
135
136 (*env)->ReleasePrimitiveArrayCritical(env, txArray, txPtr, JNI_ABORT);
137
138 return tx;
139 }
140
141 /*
142 * Class: sun_font_CStrike
143 * Method: getNativeGlyphAdvance
144 * Signature: (JI)F
145 */
146 JNIEXPORT jfloat JNICALL
147 Java_sun_font_CStrike_getNativeGlyphAdvance
148 (JNIEnv *env, jclass clazz, jlong awtStrikePtr, jint glyphCode)
149 {
150 CGSize advance;
151 JNF_COCOA_ENTER(env);
152 AWTStrike *awtStrike = (AWTStrike *)jlong_to_ptr(awtStrikePtr);
153 AWTFont *awtFont = awtStrike->fAWTFont;
154
155 // negative glyph codes are really unicodes, which were placed there by the mapper
156 // to indicate we should use CoreText to substitute the character
157 CGGlyph glyph;
158 const CTFontRef fallback = CTS_CopyCTFallbackFontAndGlyphForJavaGlyphCode(awtFont, glyphCode, &glyph);
159 CTFontGetAdvancesForGlyphs(fallback, kCTFontDefaultOrientation, &glyph, &advance, 1);
160 CFRelease(fallback);
161 advance = CGSizeApplyAffineTransform(advance, awtStrike->fFontTx);
162 if (!JRSFontStyleUsesFractionalMetrics(awtStrike->fStyle)) {
163 advance.width = round(advance.width);
164 }
165
166 JNF_COCOA_EXIT(env);
167 return advance.width;
168 }
169
170 /*
171 * Class: sun_font_CStrike
172 * Method: getNativeGlyphImageBounds
173 * Signature: (JJILjava/awt/geom/Rectangle2D/Float;DD)V
174 */
175 JNIEXPORT void JNICALL
176 Java_sun_font_CStrike_getNativeGlyphImageBounds
177 (JNIEnv *env, jclass clazz,
178 jlong awtStrikePtr, jint glyphCode,
179 jobject result /*Rectangle*/, jdouble x, jdouble y)
180 {
181 JNF_COCOA_ENTER(env);
182
183 AWTStrike *awtStrike = (AWTStrike *)jlong_to_ptr(awtStrikePtr);
184 AWTFont *awtFont = awtStrike->fAWTFont;
185
186 CGAffineTransform tx = awtStrike->fAltTx;
187 tx.tx += x;
188 tx.ty += y;
189
190 // negative glyph codes are really unicodes, which were placed there by the mapper
191 // to indicate we should use CoreText to substitute the character
192 CGGlyph glyph;
193 const CTFontRef fallback = CTS_CopyCTFallbackFontAndGlyphForJavaGlyphCode(awtFont, glyphCode, &glyph);
194
195 CGRect bbox;
196 JRSFontGetBoundingBoxesForGlyphsAndStyle(fallback, &tx, awtStrike->fStyle, &glyph, 1, &bbox);
197 CFRelease(fallback);
198
199 // the origin of this bounding box is relative to the bottom-left corner baseline
200 CGFloat decender = -bbox.origin.y;
201 bbox.origin.y = -bbox.size.height + decender;
202
203 // Rectangle2D.Float.setRect(float x, float y, float width, float height);
204 static JNF_CLASS_CACHE(sjc_Rectangle2D_Float, "java/awt/geom/Rectangle2D$Float"); // cache class id for Rectangle
205 static JNF_MEMBER_CACHE(sjr_Rectangle2DFloat_setRect, sjc_Rectangle2D_Float, "setRect", "(FFFF)V");
206 JNFCallVoidMethod(env, result, sjr_Rectangle2DFloat_setRect, (jfloat)bbox.origin.x, (jfloat)bbox.origin.y, (jfloat)bbox.size.width, (jfloat)bbox.size.height);
207
208 JNF_COCOA_EXIT(env);
209 }
210
211 /*
212 * Class: sun_font_CStrike
213 * Method: getNativeGlyphOutline
214 * Signature: (JJIDD)Ljava/awt/geom/GeneralPath;
215 */
216 JNIEXPORT jobject JNICALL
217 Java_sun_font_CStrike_getNativeGlyphOutline
218 (JNIEnv *env, jclass clazz,
219 jlong awtStrikePtr, jint glyphCode, jdouble xPos, jdouble yPos)
220 {
221 jobject generalPath = NULL;
222
223 JNF_COCOA_ENTER(env);
224
225 AWTPathRef path = NULL;
226 jfloatArray pointCoords = NULL;
227 jbyteArray pointTypes = NULL;
228
229 AWT_FONT_CLEANUP_SETUP;
230
231 AWTStrike *awtStrike = (AWTStrike *)jlong_to_ptr(awtStrikePtr);
232 AWTFont *awtfont = awtStrike->fAWTFont;
233
234 AWT_FONT_CLEANUP_CHECK(awtfont);
235
236 // inverting the shear order and sign to compensate for the flipped coordinate system
237 CGAffineTransform tx = awtStrike->fTx;
238 tx.tx += xPos;
239 tx.ty += yPos;
240
241 // get the right font and glyph for this "Java GlyphCode"
242
243 CGGlyph glyph;
244 const CTFontRef font = CTS_CopyCTFallbackFontAndGlyphForJavaGlyphCode(awtfont, glyphCode, &glyph);
245
246 // get the advance of this glyph
247 CGSize advance;
248 CTFontGetAdvancesForGlyphs(font, kCTFontDefaultOrientation, &glyph, &advance, 1);
249
250 // Create AWTPath
251 path = AWTPathCreate(CGSizeMake(xPos, yPos));
252 AWT_FONT_CLEANUP_CHECK(path);
253
254 // Get the paths
255 tx = awtStrike->fTx;
256 tx = CGAffineTransformConcat(tx, sInverseTX);
257 AWTGetGlyphOutline(&glyph, (NSFont *)font, &advance, &tx, 0, 1, &path);
258 CFRelease(font);
259
260 pointCoords = (*env)->NewFloatArray(env, path->fNumberOfDataElements);
261 AWT_FONT_CLEANUP_CHECK(pointCoords);
262
263 (*env)->SetFloatArrayRegion(env, pointCoords, 0, path->fNumberOfDataElements, (jfloat*)path->fSegmentData);
264
265 // Copy the pointTypes to the general path
266 pointTypes = (*env)->NewByteArray(env, path->fNumberOfSegments);
267 AWT_FONT_CLEANUP_CHECK(pointTypes);
268
269 (*env)->SetByteArrayRegion(env, pointTypes, 0, path->fNumberOfSegments, (jbyte*)path->fSegmentType);
270
271 static JNF_CLASS_CACHE(jc_GeneralPath, "java/awt/geom/GeneralPath");
272 static JNF_CTOR_CACHE(jc_GeneralPath_ctor, jc_GeneralPath, "(I[BI[FI)V");
273 generalPath = JNFNewObject(env, jc_GeneralPath_ctor, java_awt_geom_PathIterator_WIND_NON_ZERO, pointTypes, path->fNumberOfSegments, pointCoords, path->fNumberOfDataElements); // AWT_THREADING Safe (known object)
274
275 // Cleanup
276 cleanup:
277 if (path != NULL) {
278 AWTPathFree(path);
279 path = NULL;
280 }
281
282 if (pointCoords != NULL) {
283 (*env)->DeleteLocalRef(env, pointCoords);
284 pointCoords = NULL;
285 }
286
287 if (pointTypes != NULL) {
288 (*env)->DeleteLocalRef(env, pointTypes);
289 pointTypes = NULL;
290 }
291
292 AWT_FONT_CLEANUP_FINISH;
293 JNF_COCOA_EXIT(env);
294 return generalPath;
295 }
296
297 /*
298 * Class: sun_font_CStrike
299 * Method: getGlyphImagePtrsNative
300 * Signature: (JJ[J[II)V
301 */
302 JNIEXPORT void JNICALL
303 Java_sun_font_CStrike_getGlyphImagePtrsNative
304 (JNIEnv *env, jclass clazz,
305 jlong awtStrikePtr, jlongArray glyphInfoLongArray,
306 jintArray glyphCodes, jint len)
307 {
308 JNF_COCOA_ENTER(env);
309
310 AWTStrike *awtStrike = (AWTStrike *)jlong_to_ptr(awtStrikePtr);
311
312 jlong *glyphInfos =
313 (*env)->GetPrimitiveArrayCritical(env, glyphInfoLongArray, NULL);
314
315 jint *rawGlyphCodes =
316 (*env)->GetPrimitiveArrayCritical(env, glyphCodes, NULL);
317 @try {
318 if (rawGlyphCodes != NULL && glyphInfos != NULL) {
319 CGGlyphImages_GetGlyphImagePtrs(glyphInfos, awtStrike,
320 rawGlyphCodes, len);
321 }
322 }
323 @finally {
324 if (rawGlyphCodes != NULL) {
325 (*env)->ReleasePrimitiveArrayCritical(env, glyphCodes,
326 rawGlyphCodes, JNI_ABORT);
327 }
328 if (glyphInfos != NULL) {
329 // Do not use JNI_COMMIT, as that will not free the buffer copy
330 // when +ProtectJavaHeap is on.
331 (*env)->ReleasePrimitiveArrayCritical(env, glyphInfoLongArray,
332 glyphInfos, 0);
333 }
334 }
335
336 JNF_COCOA_EXIT(env);
337 }
338
339 /*
340 * Class: sun_font_CStrike
341 * Method: createNativeStrikePtr
342 * Signature: (J[D[DII)J
343 */
344 JNIEXPORT jlong JNICALL Java_sun_font_CStrike_createNativeStrikePtr
345 (JNIEnv *env, jclass clazz, jlong nativeFontPtr, jdoubleArray glyphTxArray, jdoubleArray invDevTxArray, jint aaStyle, jint fmHint)
346 {
347 AWTStrike *awtStrike = nil;
348 JNF_COCOA_ENTER(env);
349
350 AWTFont *awtFont = (AWTFont *)jlong_to_ptr(nativeFontPtr);
351 JRSFontRenderingStyle style = JRSFontGetRenderingStyleForHints(fmHint, aaStyle);
352
353 CGAffineTransform glyphTx = GetTxFromDoubles(env, glyphTxArray);
354 CGAffineTransform invDevTx = GetTxFromDoubles(env, invDevTxArray);
355
356 awtStrike = [AWTStrike awtStrikeForFont:awtFont tx:glyphTx invDevTx:invDevTx style:style aaStyle:aaStyle]; // autoreleased
357
358 if (awtStrike)
359 {
360 CFRetain(awtStrike); // GC
361 }
362
363 JNF_COCOA_EXIT(env);
364 return ptr_to_jlong(awtStrike);
365 }
366
367 /*
368 * Class: sun_font_CStrike
369 * Method: disposeNativeStrikePtr
370 * Signature: (J)V
371 */
372 JNIEXPORT void JNICALL
373 Java_sun_font_CStrike_disposeNativeStrikePtr
374 (JNIEnv *env, jclass clazz, jlong awtStrike)
375 {
376 JNF_COCOA_ENTER(env);
377
378 if (awtStrike) {
379 CFRelease((AWTStrike *)jlong_to_ptr(awtStrike)); // GC
380 }
381
382 JNF_COCOA_EXIT(env);
383 }
384
385 /*
386 * Class: sun_font_CStrike
387 * Method: getFontMetrics
388 * Signature: (J)Lsun/font/StrikeMetrics;
389 */
390 JNIEXPORT jobject JNICALL
391 Java_sun_font_CStrike_getFontMetrics
392 (JNIEnv *env, jclass clazz, jlong awtStrikePtr)
393 {
394 jobject metrics = NULL;
395
396 JNF_COCOA_ENTER(env);
397 AWT_FONT_CLEANUP_SETUP;
398
399 AWTFont *awtfont = ((AWTStrike *)jlong_to_ptr(awtStrikePtr))->fAWTFont;
400 AWT_FONT_CLEANUP_CHECK(awtfont);
401
402 CGFontRef cgFont = awtfont->fNativeCGFont;
403
404 jfloat ay=0.0, dy=0.0, mx=0.0, ly=0.0;
405 int unitsPerEm = CGFontGetUnitsPerEm(cgFont);
406 CGFloat scaleX = (1.0 / unitsPerEm);
407 CGFloat scaleY = (1.0 / unitsPerEm);
408
409 // Ascent
410 ay = -(CGFloat)CGFontGetAscent(cgFont) * scaleY;
411
412 // Descent
413 dy = -(CGFloat)CGFontGetDescent(cgFont) * scaleY;
414
415 // Leading
416 ly = (CGFloat)CGFontGetLeading(cgFont) * scaleY;
417
418 // Max Advance for Font Direction (Strictly horizontal)
419 mx = [awtfont->fFont maximumAdvancement].width;
420
421 /*
422 * ascent: no need to set ascentX - it will be zero.
423 * descent: no need to set descentX - it will be zero.
424 * baseline: old releases "made up" a number and also seemed to
425 * make it up for "X" and set "Y" to 0.
426 * leadingX: no need to set leadingX - it will be zero.
427 * leadingY: made-up number, but being compatible with what 1.4.x did.
428 * advance: no need to set yMaxLinearAdvanceWidth - it will be zero.
429 */
430
431 JNF_CLASS_CACHE(sjc_StrikeMetrics, "sun/font/StrikeMetrics");
432 JNF_CTOR_CACHE(strikeMetricsCtr, sjc_StrikeMetrics, "(FFFFFFFFFF)V");
433 metrics = JNFNewObject(env, strikeMetricsCtr,
434 0.0, ay, 0.0, dy, 1.0,
435 0.0, 0.0, ly, mx, 0.0);
436
437 cleanup:
438 AWT_FONT_CLEANUP_FINISH;
439 JNF_COCOA_EXIT(env);
440
441 return metrics;
442 }
443
444 extern void AccelGlyphCache_RemoveAllInfos(GlyphInfo* glyph);
445 /*
446 * Class: sun_font_CStrikeDisposer
447 * Method: removeGlyphInfoFromCache
448 * Signature: (J)V
449 */
450 JNIEXPORT void JNICALL Java_sun_font_CStrikeDisposer_removeGlyphInfoFromCache
451 (JNIEnv *env, jclass cls, jlong glyphInfo)
452 {
453 JNF_COCOA_ENTER(env);
454
455 AccelGlyphCache_RemoveAllCellInfos((GlyphInfo*)jlong_to_ptr(glyphInfo));
456
457 JNF_COCOA_EXIT(env);
458 }