1 /*
2 * Copyright (c) 2007, 2015, 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 #include "stdlib.h"
27 #include "string.h"
28 #include "gdefs.h"
29 #include "jlong.h"
30 #include "jni_util.h"
31 #include "sunfontids.h"
32 #include "fontscalerdefs.h"
33 #include "sun_font_SunFontManager.h"
34 #include "sun_font_NullFontScaler.h"
35 #include "sun_font_StrikeCache.h"
36
37 static void *theNullScalerContext = NULL;
38 extern void AccelGlyphCache_RemoveAllCellInfos(GlyphInfo *glyph);
39
40 /*
41 * Declare library specific JNI_Onload entry if static build
42 */
43 DEF_STATIC_JNI_OnLoad
44
45 JNIEXPORT jlong JNICALL
46 Java_sun_font_NullFontScaler_getNullScalerContext
47 (JNIEnv *env, jclass scalerClass) {
48
49 if (theNullScalerContext == NULL) {
50 theNullScalerContext = malloc(1);
51 }
52 return ptr_to_jlong(theNullScalerContext);
53 }
54
55 int isNullScalerContext(void *context) {
56 return theNullScalerContext == context;
57 }
58
59 /* Eventually we may rework it to be a singleton.
60 * This will require additional checks in freeLongMemory/freeIntMemory
61 * and on other hand malformed fonts (main source of null glyph images)
62 * are supposed to be collected fast.
63 * But perhaps it is still right thing to do.
64 * Even better is to eliminate the need to have this native method
65 * but for this it is necessary to rework Strike and drawing logic
66 * to be able to live with NULL pointers without performance hit.
67 */
68 JNIEXPORT jlong JNICALL Java_sun_font_NullFontScaler_getGlyphImage
69 (JNIEnv *env, jobject scaler, jlong pContext, jint glyphCode) {
70 void *nullscaler = calloc(sizeof(GlyphInfo), 1);
71 return ptr_to_jlong(nullscaler);
72 }
73
74
75
76 void initLCDGammaTables();
77
78 /* placeholder for extern variable */
79 static int initialisedFontIDs = 0;
80 FontManagerNativeIDs sunFontIDs;
81
82 static void initFontIDs(JNIEnv *env) {
83
84 jclass tmpClass;
85
86 if (initialisedFontIDs) {
87 return;
88 }
89 CHECK_NULL(tmpClass = (*env)->FindClass(env, "sun/font/TrueTypeFont"));
90 CHECK_NULL(sunFontIDs.ttReadBlockMID =
91 (*env)->GetMethodID(env, tmpClass, "readBlock",
92 "(Ljava/nio/ByteBuffer;II)I"));
93 CHECK_NULL(sunFontIDs.ttReadBytesMID =
94 (*env)->GetMethodID(env, tmpClass, "readBytes", "(II)[B"));
95
96 CHECK_NULL(tmpClass = (*env)->FindClass(env, "sun/font/Type1Font"));
97 CHECK_NULL(sunFontIDs.readFileMID =
98 (*env)->GetMethodID(env, tmpClass,
99 "readFile", "(Ljava/nio/ByteBuffer;)V"));
100
101 CHECK_NULL(tmpClass =
102 (*env)->FindClass(env, "java/awt/geom/Point2D$Float"));
103 sunFontIDs.pt2DFloatClass = (jclass)(*env)->NewGlobalRef(env, tmpClass);
104 CHECK_NULL(sunFontIDs.pt2DFloatCtr =
105 (*env)->GetMethodID(env, sunFontIDs.pt2DFloatClass, "<init>","(FF)V"));
106
107 CHECK_NULL(sunFontIDs.xFID =
108 (*env)->GetFieldID(env, sunFontIDs.pt2DFloatClass, "x", "F"));
109 CHECK_NULL(sunFontIDs.yFID =
110 (*env)->GetFieldID(env, sunFontIDs.pt2DFloatClass, "y", "F"));
111
112 CHECK_NULL(tmpClass = (*env)->FindClass(env, "sun/font/StrikeMetrics"));
113 CHECK_NULL(sunFontIDs.strikeMetricsClass =
114 (jclass)(*env)->NewGlobalRef(env, tmpClass));
115
116 CHECK_NULL(sunFontIDs.strikeMetricsCtr =
117 (*env)->GetMethodID(env, sunFontIDs.strikeMetricsClass,
118 "<init>", "(FFFFFFFFFF)V"));
119
120 CHECK_NULL(tmpClass =
121 (*env)->FindClass(env, "java/awt/geom/Rectangle2D$Float"));
122 sunFontIDs.rect2DFloatClass = (jclass)(*env)->NewGlobalRef(env, tmpClass);
123 CHECK_NULL(sunFontIDs.rect2DFloatCtr =
124 (*env)->GetMethodID(env, sunFontIDs.rect2DFloatClass, "<init>", "()V"));
125 CHECK_NULL(sunFontIDs.rect2DFloatCtr4 =
126 (*env)->GetMethodID(env, sunFontIDs.rect2DFloatClass,
127 "<init>", "(FFFF)V"));
128 CHECK_NULL(sunFontIDs.rectF2DX =
129 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "x", "F"));
130 CHECK_NULL(sunFontIDs.rectF2DY =
131 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "y", "F"));
132 CHECK_NULL(sunFontIDs.rectF2DWidth =
133 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "width", "F"));
134 CHECK_NULL(sunFontIDs.rectF2DHeight =
135 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "height", "F"));
136
137 CHECK_NULL(tmpClass = (*env)->FindClass(env, "java/awt/geom/GeneralPath"));
138 sunFontIDs.gpClass = (jclass)(*env)->NewGlobalRef(env, tmpClass);
139 CHECK_NULL(sunFontIDs.gpCtr =
140 (*env)->GetMethodID(env, sunFontIDs.gpClass, "<init>", "(I[BI[FI)V"));
141 CHECK_NULL(sunFontIDs.gpCtrEmpty =
142 (*env)->GetMethodID(env, sunFontIDs.gpClass, "<init>", "()V"));
143
144 CHECK_NULL(tmpClass = (*env)->FindClass(env, "sun/font/Font2D"));
145 CHECK_NULL(sunFontIDs.f2dCharToGlyphMID =
146 (*env)->GetMethodID(env, tmpClass, "charToGlyph", "(I)I"));
147 CHECK_NULL(sunFontIDs.getMapperMID =
148 (*env)->GetMethodID(env, tmpClass, "getMapper",
149 "()Lsun/font/CharToGlyphMapper;"));
150 CHECK_NULL(sunFontIDs.getTableBytesMID =
151 (*env)->GetMethodID(env, tmpClass, "getTableBytes", "(I)[B"));
152 CHECK_NULL(sunFontIDs.canDisplayMID =
153 (*env)->GetMethodID(env, tmpClass, "canDisplay", "(C)Z"));
154
155 CHECK_NULL(tmpClass = (*env)->FindClass(env, "sun/font/CharToGlyphMapper"));
156 CHECK_NULL(sunFontIDs.charToGlyphMID =
157 (*env)->GetMethodID(env, tmpClass, "charToGlyph", "(I)I"));
158
159 CHECK_NULL(tmpClass = (*env)->FindClass(env, "sun/font/PhysicalStrike"));
160 CHECK_NULL(sunFontIDs.getGlyphMetricsMID =
161 (*env)->GetMethodID(env, tmpClass, "getGlyphMetrics",
162 "(I)Ljava/awt/geom/Point2D$Float;"));
163 CHECK_NULL(sunFontIDs.getGlyphPointMID =
164 (*env)->GetMethodID(env, tmpClass, "getGlyphPoint",
165 "(II)Ljava/awt/geom/Point2D$Float;"));
166 CHECK_NULL(sunFontIDs.adjustPointMID =
167 (*env)->GetMethodID(env, tmpClass, "adjustPoint",
168 "(Ljava/awt/geom/Point2D$Float;)V"));
169 CHECK_NULL(sunFontIDs.pScalerContextFID =
170 (*env)->GetFieldID(env, tmpClass, "pScalerContext", "J"));
171
172 CHECK_NULL(tmpClass = (*env)->FindClass(env, "sun/font/GlyphList"));
173 CHECK_NULL(sunFontIDs.glyphListX =
174 (*env)->GetFieldID(env, tmpClass, "x", "F"));
175 CHECK_NULL(sunFontIDs.glyphListY =
176 (*env)->GetFieldID(env, tmpClass, "y", "F"));
177 CHECK_NULL(sunFontIDs.glyphListLen =
178 (*env)->GetFieldID(env, tmpClass, "len", "I"));
179 CHECK_NULL(sunFontIDs.glyphImages =
180 (*env)->GetFieldID(env, tmpClass, "images", "[J"));
181 CHECK_NULL(sunFontIDs.glyphListUsePos =
182 (*env)->GetFieldID(env, tmpClass, "usePositions", "Z"));
183 CHECK_NULL(sunFontIDs.glyphListPos =
184 (*env)->GetFieldID(env, tmpClass, "positions", "[F"));
185 CHECK_NULL(sunFontIDs.lcdRGBOrder =
186 (*env)->GetFieldID(env, tmpClass, "lcdRGBOrder", "Z"));
187 CHECK_NULL(sunFontIDs.lcdSubPixPos =
188 (*env)->GetFieldID(env, tmpClass, "lcdSubPixPos", "Z"));
189
190 initLCDGammaTables();
191
192 initialisedFontIDs = 1;
193 }
194
195 JNIEXPORT void JNICALL
196 Java_sun_font_SunFontManager_initIDs
197 (JNIEnv *env, jclass cls) {
198
199 initFontIDs(env);
200 }
201
202 JNIEXPORT FontManagerNativeIDs getSunFontIDs(JNIEnv *env) {
203
204 initFontIDs(env);
205 return sunFontIDs;
206 }
207
208 /*
209 * Class: sun_font_StrikeCache
210 * Method: freeIntPointer
211 * Signature: (I)V
212 */
213 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeIntPointer
214 (JNIEnv *env, jclass cacheClass, jint ptr) {
215
216 /* Note this is used for freeing a glyph which was allocated
217 * but never placed into the glyph cache. The caller holds the
218 * only reference, therefore it is unnecessary to invalidate any
219 * accelerated glyph cache cells as we do in freeInt/LongMemory().
220 */
221 if (ptr != 0) {
222 free((void*)ptr);
223 }
224 }
225
226 /*
227 * Class: sun_font_StrikeCache
228 * Method: freeLongPointer
229 * Signature: (J)V
230 */
231 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeLongPointer
232 (JNIEnv *env, jclass cacheClass, jlong ptr) {
233
234 /* Note this is used for freeing a glyph which was allocated
235 * but never placed into the glyph cache. The caller holds the
236 * only reference, therefore it is unnecessary to invalidate any
237 * accelerated glyph cache cells as we do in freeInt/LongMemory().
238 */
239 if (ptr != 0L) {
240 free(jlong_to_ptr(ptr));
241 }
242 }
243
244 /*
245 * Class: sun_font_StrikeCache
246 * Method: freeIntMemory
247 * Signature: ([I)V
248 */
249 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeIntMemory
250 (JNIEnv *env, jclass cacheClass, jintArray jmemArray, jlong pContext) {
251
252 int len = (*env)->GetArrayLength(env, jmemArray);
253 jint* ptrs =
254 (jint*)(*env)->GetPrimitiveArrayCritical(env, jmemArray, NULL);
255 int i;
256
257 if (ptrs) {
258 for (i=0; i< len; i++) {
259 if (ptrs[i] != 0) {
260 GlyphInfo *ginfo = (GlyphInfo *)ptrs[i];
261 if (ginfo->cellInfo != NULL &&
262 ginfo->managed == MANAGED_GLYPH) {
263 // invalidate this glyph's accelerated cache cell
264 AccelGlyphCache_RemoveAllCellInfos(ginfo);
265 }
266 free((void*)ginfo);
267 }
268 }
269 (*env)->ReleasePrimitiveArrayCritical(env, jmemArray, ptrs, JNI_ABORT);
270 }
271 if (!isNullScalerContext(jlong_to_ptr(pContext))) {
272 free(jlong_to_ptr(pContext));
273 }
274 }
275
276 /*
277 * Class: sun_font_StrikeCache
278 * Method: freeLongMemory
279 * Signature: ([J)V
280 */
281 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeLongMemory
282 (JNIEnv *env, jclass cacheClass, jlongArray jmemArray, jlong pContext) {
283
284 int len = (*env)->GetArrayLength(env, jmemArray);
285 jlong* ptrs =
286 (jlong*)(*env)->GetPrimitiveArrayCritical(env, jmemArray, NULL);
287 int i;
288
289 if (ptrs) {
290 for (i=0; i< len; i++) {
291 if (ptrs[i] != 0L) {
292 GlyphInfo *ginfo = (GlyphInfo *) jlong_to_ptr(ptrs[i]);
293 if (ginfo->cellInfo != NULL &&
294 ginfo->managed == MANAGED_GLYPH) {
295 AccelGlyphCache_RemoveAllCellInfos(ginfo);
296 }
297 free((void*)ginfo);
298 }
299 }
300 (*env)->ReleasePrimitiveArrayCritical(env, jmemArray, ptrs, JNI_ABORT);
301 }
302 if (!isNullScalerContext(jlong_to_ptr(pContext))) {
303 free(jlong_to_ptr(pContext));
304 }
305 }
306
307 JNIEXPORT void JNICALL
308 Java_sun_font_StrikeCache_getGlyphCacheDescription
309 (JNIEnv *env, jclass cls, jlongArray results) {
310
311 jlong* nresults;
312 GlyphInfo *info;
313 size_t baseAddr;
314
315 if ((*env)->GetArrayLength(env, results) < 13) {
316 return;
317 }
318
319 nresults = (jlong*)(*env)->GetPrimitiveArrayCritical(env, results, NULL);
320 if (nresults == NULL) {
321 return;
322 }
323 info = (GlyphInfo*) calloc(1, sizeof(GlyphInfo));
324 if (info == NULL) {
325 (*env)->ReleasePrimitiveArrayCritical(env, results, nresults, 0);
326 return;
327 }
328 baseAddr = (size_t)info;
329 nresults[0] = sizeof(void*);
330 nresults[1] = sizeof(GlyphInfo);
331 nresults[2] = 0;
332 nresults[3] = (size_t)&(info->advanceY)-baseAddr;
333 nresults[4] = (size_t)&(info->width)-baseAddr;
334 nresults[5] = (size_t)&(info->height)-baseAddr;
335 nresults[6] = (size_t)&(info->rowBytes)-baseAddr;
336 nresults[7] = (size_t)&(info->topLeftX)-baseAddr;
337 nresults[8] = (size_t)&(info->topLeftY)-baseAddr;
338 nresults[9] = (size_t)&(info->image)-baseAddr;
339 nresults[10] = (jlong)(uintptr_t)info; /* invisible glyph */
340 nresults[11] = (size_t)&(info->cellInfo)-baseAddr;
341 nresults[12] = (size_t)&(info->managed)-baseAddr;
342
343 (*env)->ReleasePrimitiveArrayCritical(env, results, nresults, 0);
344 }
345
346 JNIEXPORT TTLayoutTableCache* newLayoutTableCache() {
347 TTLayoutTableCache* ltc = calloc(1, sizeof(TTLayoutTableCache));
348 if (ltc) {
349 int i;
350 for(i=0;i<LAYOUTCACHE_ENTRIES;i++) {
351 ltc->entries[i].len = -1;
352 }
353 }
354 return ltc;
355 }
356
357 JNIEXPORT void freeLayoutTableCache(TTLayoutTableCache* ltc) {
358 if (ltc) {
359 int i;
360 for(i=0;i<LAYOUTCACHE_ENTRIES;i++) {
361 if(ltc->entries[i].ptr) free (ltc->entries[i].ptr);
362 }
363 if (ltc->kernPairs) free(ltc->kernPairs);
364 free(ltc);
365 }
366 }