1 /*
2 * Copyright 2007-2008 Sun Microsystems, Inc. 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. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 #include "stdlib.h"
27 #include "malloc.h"
28 #include "string.h"
29 #include "gdefs.h"
30 #include "jlong.h"
31 #include "sunfontids.h"
32 #include "fontscalerdefs.h"
33 #include "sun_font_FontManager.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 JNIEXPORT jlong JNICALL
42 Java_sun_font_NullFontScaler_getNullScalerContext
43 (JNIEnv *env, jclass scalerClass) {
44
45 if (theNullScalerContext == NULL) {
46 theNullScalerContext = malloc(1);
47 }
48 return ptr_to_jlong(theNullScalerContext);
49 }
50
51 int isNullScalerContext(void *context) {
52 return theNullScalerContext == context;
53 }
54
55 /* Eventually we may rework it to be a singleton.
56 * This will require additional checks in freeLongMemory/freeIntMemory
57 * and on other hand malformed fonts (main source of null glyph images)
58 * are supposed to be collected fast.
59 * But perhaps it is still right thing to do.
60 * Even better is to eliminate the need to have this native method
61 * but for this it is necessary to rework Strike and drawing logic
62 * to be able to live with NULL pointers without performance hit.
63 */
64 JNIEXPORT jlong JNICALL Java_sun_font_NullFontScaler_getGlyphImage
65 (JNIEnv *env, jobject scaler, jlong pContext, jint glyphCode) {
66 void *nullscaler = calloc(sizeof(GlyphInfo), 1);
67 return ptr_to_jlong(nullscaler);
68 }
69
70
71
72 void initLCDGammaTables();
73
74 /*
75 * Class: sun_font_FontManager
76 * Method: getPlatformFontVar
77 * Signature: ()Z
78 */
79 JNIEXPORT jboolean JNICALL
80 Java_sun_font_FontManager_getPlatformFontVar(JNIEnv *env, jclass cl) {
81 char *c = getenv("JAVA2D_USEPLATFORMFONT");
82 if (c) {
83 return JNI_TRUE;
84 } else {
85 return JNI_FALSE;
86 }
87 }
88
89 /* placeholder for extern variable */
90 FontManagerNativeIDs sunFontIDs;
91
92 JNIEXPORT void JNICALL
93 Java_sun_font_FontManager_initIDs
94 (JNIEnv *env, jclass cls) {
95
96 jclass tmpClass = (*env)->FindClass(env, "java/awt/Font");
97
98 sunFontIDs.getFont2DMID =
99 (*env)->GetMethodID(env, tmpClass, "getFont2D",
100 "()Lsun/font/Font2D;");
101 sunFontIDs.font2DHandle =
102 (*env)->GetFieldID(env, tmpClass,
103 "font2DHandle", "Lsun/font/Font2DHandle;");
104
105 sunFontIDs.createdFont =
106 (*env)->GetFieldID(env, tmpClass, "createdFont", "Z");
107
108 tmpClass = (*env)->FindClass(env, "sun/font/TrueTypeFont");
109 sunFontIDs.ttReadBlockMID =
110 (*env)->GetMethodID(env, tmpClass, "readBlock",
111 "(Ljava/nio/ByteBuffer;II)I");
112 sunFontIDs.ttReadBytesMID =
113 (*env)->GetMethodID(env, tmpClass, "readBytes", "(II)[B");
114
115 tmpClass = (*env)->FindClass(env, "sun/font/Type1Font");
116 sunFontIDs.readFileMID =
117 (*env)->GetMethodID(env, tmpClass,
118 "readFile", "(Ljava/nio/ByteBuffer;)V");
119
120 tmpClass = (*env)->FindClass(env, "java/awt/geom/Point2D$Float");
121 sunFontIDs.pt2DFloatClass = (jclass)(*env)->NewGlobalRef(env, tmpClass);
122 sunFontIDs.pt2DFloatCtr =
123 (*env)->GetMethodID(env, sunFontIDs.pt2DFloatClass, "<init>","(FF)V");
124
125 sunFontIDs.xFID =
126 (*env)->GetFieldID(env, sunFontIDs.pt2DFloatClass, "x", "F");
127 sunFontIDs.yFID =
128 (*env)->GetFieldID(env, sunFontIDs.pt2DFloatClass, "y", "F");
129
130 tmpClass = (*env)->FindClass(env, "sun/font/StrikeMetrics");
131 sunFontIDs.strikeMetricsClass=(jclass)(*env)->NewGlobalRef(env, tmpClass);
132
133 sunFontIDs.strikeMetricsCtr =
134 (*env)->GetMethodID(env, sunFontIDs.strikeMetricsClass,
135 "<init>", "(FFFFFFFFFF)V");
136
137 tmpClass = (*env)->FindClass(env, "java/awt/geom/Rectangle2D$Float");
138 sunFontIDs.rect2DFloatClass = (jclass)(*env)->NewGlobalRef(env, tmpClass);
139 sunFontIDs.rect2DFloatCtr =
140 (*env)->GetMethodID(env, sunFontIDs.rect2DFloatClass, "<init>", "()V");
141 sunFontIDs.rect2DFloatCtr4 =
142 (*env)->GetMethodID(env, sunFontIDs.rect2DFloatClass,
143 "<init>", "(FFFF)V");
144 sunFontIDs.rectF2DX =
145 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "x", "F");
146 sunFontIDs.rectF2DY =
147 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "y", "F");
148 sunFontIDs.rectF2DWidth =
149 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "width", "F");
150 sunFontIDs.rectF2DHeight =
151 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "height", "F");
152
153 tmpClass = (*env)->FindClass(env, "java/awt/geom/GeneralPath");
154 sunFontIDs.gpClass = (jclass)(*env)->NewGlobalRef(env, tmpClass);
155 sunFontIDs.gpCtr =
156 (*env)->GetMethodID(env, sunFontIDs.gpClass, "<init>", "(I[BI[FI)V");
157 sunFontIDs.gpCtrEmpty =
158 (*env)->GetMethodID(env, sunFontIDs.gpClass, "<init>", "()V");
159
160 tmpClass = (*env)->FindClass(env, "sun/font/Font2D");
161 sunFontIDs.f2dCharToGlyphMID =
162 (*env)->GetMethodID(env, tmpClass, "charToGlyph", "(I)I");
163 sunFontIDs.getMapperMID =
164 (*env)->GetMethodID(env, tmpClass, "getMapper",
165 "()Lsun/font/CharToGlyphMapper;");
166 sunFontIDs.getTableBytesMID =
167 (*env)->GetMethodID(env, tmpClass, "getTableBytes", "(I)[B");
168 sunFontIDs.canDisplayMID =
169 (*env)->GetMethodID(env, tmpClass, "canDisplay", "(C)Z");
170
171 tmpClass = (*env)->FindClass(env, "sun/font/CharToGlyphMapper");
172 sunFontIDs.charToGlyphMID =
173 (*env)->GetMethodID(env, tmpClass, "charToGlyph", "(I)I");
174
175 tmpClass = (*env)->FindClass(env, "sun/font/PhysicalStrike");
176 sunFontIDs.getGlyphMetricsMID =
177 (*env)->GetMethodID(env, tmpClass, "getGlyphMetrics",
178 "(I)Ljava/awt/geom/Point2D$Float;");
179 sunFontIDs.getGlyphPointMID =
180 (*env)->GetMethodID(env, tmpClass, "getGlyphPoint",
181 "(II)Ljava/awt/geom/Point2D$Float;");
182 sunFontIDs.adjustPointMID =
183 (*env)->GetMethodID(env, tmpClass, "adjustPoint",
184 "(Ljava/awt/geom/Point2D$Float;)V");
185 sunFontIDs.pScalerContextFID =
186 (*env)->GetFieldID(env, tmpClass, "pScalerContext", "J");
187
188 tmpClass = (*env)->FindClass(env, "sun/font/GlyphList");
189 sunFontIDs.glyphListX = (*env)->GetFieldID(env, tmpClass, "x", "F");
190 sunFontIDs.glyphListY = (*env)->GetFieldID(env, tmpClass, "y", "F");
191 sunFontIDs.glyphListLen = (*env)->GetFieldID(env, tmpClass, "len", "I");
192 sunFontIDs.glyphImages =
193 (*env)->GetFieldID(env, tmpClass, "images", "[J");
194 sunFontIDs.glyphListUsePos =
195 (*env)->GetFieldID(env, tmpClass, "usePositions", "Z");
196 sunFontIDs.glyphListPos =
197 (*env)->GetFieldID(env, tmpClass, "positions", "[F");
198 sunFontIDs.lcdRGBOrder =
199 (*env)->GetFieldID(env, tmpClass, "lcdRGBOrder", "Z");
200 sunFontIDs.lcdSubPixPos =
201 (*env)->GetFieldID(env, tmpClass, "lcdSubPixPos", "Z");
202
203 initLCDGammaTables();
204 }
205
206 JNIEXPORT FontManagerNativeIDs getSunFontIDs() {
207 return sunFontIDs;
208 }
209
210 JNIEXPORT jobject JNICALL
211 Java_sun_font_FontManager_getFont2D(
212 JNIEnv *env,
213 jclass clsFM,
214 jobject javaFont) {
215
216 return (*env)->CallObjectMethod(env, javaFont, sunFontIDs.getFont2DMID);
217 }
218
219 JNIEXPORT void JNICALL
220 Java_sun_font_FontManager_setFont2D(
221 JNIEnv *env,
222 jclass clsFM,
223 jobject javaFont,
224 jobject fontHandle) {
225 (*env)->SetObjectField(env, javaFont, sunFontIDs.font2DHandle, fontHandle);
226 }
227
228 JNIEXPORT void JNICALL
229 Java_sun_font_FontManager_setCreatedFont(
230 JNIEnv *env,
231 jclass clsFM,
232 jobject javaFont) {
233 (*env)->SetBooleanField(env, javaFont, sunFontIDs.createdFont, JNI_TRUE);
234 }
235
236 JNIEXPORT jboolean JNICALL
237 Java_sun_font_FontManager_isCreatedFont(
238 JNIEnv *env,
239 jclass clsFM,
240 jobject javaFont) {
241 return (*env)->GetBooleanField(env, javaFont, sunFontIDs.createdFont);
242 }
243
244 /*
245 * Class: sun_font_StrikeCache
246 * Method: freeIntPointer
247 * Signature: (I)V
248 */
249 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeIntPointer
250 (JNIEnv *env, jclass cacheClass, jint ptr) {
251
252 /* Note this is used for freeing a glyph which was allocated
253 * but never placed into the glyph cache. The caller holds the
254 * only reference, therefore it is unnecessary to invalidate any
255 * accelerated glyph cache cells as we do in freeInt/LongMemory().
256 */
257 if (ptr != 0) {
258 free((void*)ptr);
259 }
260 }
261
262 /*
263 * Class: sun_font_StrikeCache
264 * Method: freeLongPointer
265 * Signature: (J)V
266 */
267 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeLongPointer
268 (JNIEnv *env, jclass cacheClass, jlong ptr) {
269
270 /* Note this is used for freeing a glyph which was allocated
271 * but never placed into the glyph cache. The caller holds the
272 * only reference, therefore it is unnecessary to invalidate any
273 * accelerated glyph cache cells as we do in freeInt/LongMemory().
274 */
275 if (ptr != 0L) {
276 free(jlong_to_ptr(ptr));
277 }
278 }
279
280 /*
281 * Class: sun_font_StrikeCache
282 * Method: freeIntMemory
283 * Signature: ([I)V
284 */
285 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeIntMemory
286 (JNIEnv *env, jclass cacheClass, jintArray jmemArray, jlong pContext) {
287
288 int len = (*env)->GetArrayLength(env, jmemArray);
289 jint* ptrs =
290 (jint*)(*env)->GetPrimitiveArrayCritical(env, jmemArray, NULL);
291 int i;
292
293 if (ptrs) {
294 for (i=0; i< len; i++) {
295 if (ptrs[i] != 0) {
296 GlyphInfo *ginfo = (GlyphInfo *)ptrs[i];
297 if (ginfo->cellInfo != NULL) {
298 // invalidate this glyph's accelerated cache cell
299 AccelGlyphCache_RemoveAllCellInfos(ginfo);
300 }
301 free((void*)ginfo);
302 }
303 }
304 (*env)->ReleasePrimitiveArrayCritical(env, jmemArray, ptrs, JNI_ABORT);
305 }
306 if (!isNullScalerContext(jlong_to_ptr(pContext))) {
307 free(jlong_to_ptr(pContext));
308 }
309 }
310
311 /*
312 * Class: sun_font_StrikeCache
313 * Method: freeLongMemory
314 * Signature: ([J)V
315 */
316 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeLongMemory
317 (JNIEnv *env, jclass cacheClass, jlongArray jmemArray, jlong pContext) {
318
319 int len = (*env)->GetArrayLength(env, jmemArray);
320 jlong* ptrs =
321 (jlong*)(*env)->GetPrimitiveArrayCritical(env, jmemArray, NULL);
322 int i;
323
324 if (ptrs) {
325 for (i=0; i< len; i++) {
326 if (ptrs[i] != 0L) {
327 GlyphInfo *ginfo = (GlyphInfo *) jlong_to_ptr(ptrs[i]);
328 if (ginfo->cellInfo != NULL) {
329 AccelGlyphCache_RemoveAllCellInfos(ginfo);
330 }
331 free((void*)ginfo);
332 }
333 }
334 (*env)->ReleasePrimitiveArrayCritical(env, jmemArray, ptrs, JNI_ABORT);
335 }
336 if (!isNullScalerContext(jlong_to_ptr(pContext))) {
337 free(jlong_to_ptr(pContext));
338 }
339 }
340
341 JNIEXPORT void JNICALL
342 Java_sun_font_StrikeCache_getGlyphCacheDescription
343 (JNIEnv *env, jclass cls, jlongArray results) {
344
345 jlong* nresults;
346 GlyphInfo *info;
347 size_t baseAddr;
348
349 if ((*env)->GetArrayLength(env, results) < 10) {
350 return;
351 }
352
353 nresults = (jlong*)(*env)->GetPrimitiveArrayCritical(env, results, NULL);
354 if (nresults == NULL) {
355 return;
356 }
357 info = (GlyphInfo*) calloc(1, sizeof(GlyphInfo));
358 if (info == NULL) {
359 (*env)->ReleasePrimitiveArrayCritical(env, results, nresults, 0);
360 return;
361 }
362 baseAddr = (size_t)info;
363 nresults[0] = sizeof(void*);
364 nresults[1] = sizeof(GlyphInfo);
365 nresults[2] = 0;
366 nresults[3] = (size_t)&(info->advanceY)-baseAddr;
367 nresults[4] = (size_t)&(info->width)-baseAddr;
368 nresults[5] = (size_t)&(info->height)-baseAddr;
369 nresults[6] = (size_t)&(info->rowBytes)-baseAddr;
370 nresults[7] = (size_t)&(info->topLeftX)-baseAddr;
371 nresults[8] = (size_t)&(info->topLeftY)-baseAddr;
372 nresults[9] = (size_t)&(info->image)-baseAddr;
373 nresults[10] = (jlong)(uintptr_t)info; /* invisible glyph */
374 (*env)->ReleasePrimitiveArrayCritical(env, results, nresults, 0);
375 }
376
377 JNIEXPORT TTLayoutTableCache* newLayoutTableCache() {
378 TTLayoutTableCache* ltc = calloc(1, sizeof(TTLayoutTableCache));
379 if (ltc) {
380 ltc->gsub_len = -1;
381 ltc->gpos_len = -1;
382 ltc->gdef_len = -1;
383 ltc->mort_len = -1;
384 ltc->kern_len = -1;
385 }
386 return ltc;
387 }
388
389 JNIEXPORT void freeLayoutTableCache(TTLayoutTableCache* ltc) {
390 if (ltc) {
391 if (ltc->gsub) free(ltc->gsub);
392 if (ltc->gpos) free(ltc->gpos);
393 if (ltc->gdef) free(ltc->gdef);
394 if (ltc->mort) free(ltc->mort);
395 if (ltc->kern) free(ltc->kern);
396 if (ltc->kernPairs) free(ltc->kernPairs);
397 free(ltc);
398 }
399 }