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 /* placeholder for extern variable */
75 FontManagerNativeIDs sunFontIDs;
76
77 JNIEXPORT void JNICALL
78 Java_sun_font_SunFontManager_initIDs
79 (JNIEnv *env, jclass cls) {
80
81 jclass tmpClass = (*env)->FindClass(env, "sun/font/TrueTypeFont");
82 sunFontIDs.ttReadBlockMID =
83 (*env)->GetMethodID(env, tmpClass, "readBlock",
84 "(Ljava/nio/ByteBuffer;II)I");
85 sunFontIDs.ttReadBytesMID =
86 (*env)->GetMethodID(env, tmpClass, "readBytes", "(II)[B");
87
88 tmpClass = (*env)->FindClass(env, "sun/font/Type1Font");
89 sunFontIDs.readFileMID =
90 (*env)->GetMethodID(env, tmpClass,
91 "readFile", "(Ljava/nio/ByteBuffer;)V");
92
93 tmpClass = (*env)->FindClass(env, "java/awt/geom/Point2D$Float");
94 sunFontIDs.pt2DFloatClass = (jclass)(*env)->NewGlobalRef(env, tmpClass);
95 sunFontIDs.pt2DFloatCtr =
96 (*env)->GetMethodID(env, sunFontIDs.pt2DFloatClass, "<init>","(FF)V");
97
98 sunFontIDs.xFID =
99 (*env)->GetFieldID(env, sunFontIDs.pt2DFloatClass, "x", "F");
100 sunFontIDs.yFID =
101 (*env)->GetFieldID(env, sunFontIDs.pt2DFloatClass, "y", "F");
102
103 tmpClass = (*env)->FindClass(env, "sun/font/StrikeMetrics");
104 sunFontIDs.strikeMetricsClass=(jclass)(*env)->NewGlobalRef(env, tmpClass);
105
106 sunFontIDs.strikeMetricsCtr =
107 (*env)->GetMethodID(env, sunFontIDs.strikeMetricsClass,
108 "<init>", "(FFFFFFFFFF)V");
109
110 tmpClass = (*env)->FindClass(env, "java/awt/geom/Rectangle2D$Float");
111 sunFontIDs.rect2DFloatClass = (jclass)(*env)->NewGlobalRef(env, tmpClass);
112 sunFontIDs.rect2DFloatCtr =
113 (*env)->GetMethodID(env, sunFontIDs.rect2DFloatClass, "<init>", "()V");
114 sunFontIDs.rect2DFloatCtr4 =
115 (*env)->GetMethodID(env, sunFontIDs.rect2DFloatClass,
116 "<init>", "(FFFF)V");
117 sunFontIDs.rectF2DX =
118 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "x", "F");
119 sunFontIDs.rectF2DY =
120 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "y", "F");
121 sunFontIDs.rectF2DWidth =
122 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "width", "F");
123 sunFontIDs.rectF2DHeight =
124 (*env)->GetFieldID(env, sunFontIDs.rect2DFloatClass, "height", "F");
125
126 tmpClass = (*env)->FindClass(env, "java/awt/geom/GeneralPath");
127 sunFontIDs.gpClass = (jclass)(*env)->NewGlobalRef(env, tmpClass);
128 sunFontIDs.gpCtr =
129 (*env)->GetMethodID(env, sunFontIDs.gpClass, "<init>", "(I[BI[FI)V");
130 sunFontIDs.gpCtrEmpty =
131 (*env)->GetMethodID(env, sunFontIDs.gpClass, "<init>", "()V");
132
133 tmpClass = (*env)->FindClass(env, "sun/font/Font2D");
134 sunFontIDs.f2dCharToGlyphMID =
135 (*env)->GetMethodID(env, tmpClass, "charToGlyph", "(I)I");
136 sunFontIDs.getMapperMID =
137 (*env)->GetMethodID(env, tmpClass, "getMapper",
138 "()Lsun/font/CharToGlyphMapper;");
139 sunFontIDs.getTableBytesMID =
140 (*env)->GetMethodID(env, tmpClass, "getTableBytes", "(I)[B");
141 sunFontIDs.canDisplayMID =
142 (*env)->GetMethodID(env, tmpClass, "canDisplay", "(C)Z");
143
144 tmpClass = (*env)->FindClass(env, "sun/font/CharToGlyphMapper");
145 sunFontIDs.charToGlyphMID =
146 (*env)->GetMethodID(env, tmpClass, "charToGlyph", "(I)I");
147
148 tmpClass = (*env)->FindClass(env, "sun/font/PhysicalStrike");
149 sunFontIDs.getGlyphMetricsMID =
150 (*env)->GetMethodID(env, tmpClass, "getGlyphMetrics",
151 "(I)Ljava/awt/geom/Point2D$Float;");
152 sunFontIDs.getGlyphPointMID =
153 (*env)->GetMethodID(env, tmpClass, "getGlyphPoint",
154 "(II)Ljava/awt/geom/Point2D$Float;");
155 sunFontIDs.adjustPointMID =
156 (*env)->GetMethodID(env, tmpClass, "adjustPoint",
157 "(Ljava/awt/geom/Point2D$Float;)V");
158 sunFontIDs.pScalerContextFID =
159 (*env)->GetFieldID(env, tmpClass, "pScalerContext", "J");
160
161 tmpClass = (*env)->FindClass(env, "sun/font/GlyphList");
162 sunFontIDs.glyphListX = (*env)->GetFieldID(env, tmpClass, "x", "F");
163 sunFontIDs.glyphListY = (*env)->GetFieldID(env, tmpClass, "y", "F");
164 sunFontIDs.glyphListLen = (*env)->GetFieldID(env, tmpClass, "len", "I");
165 sunFontIDs.glyphImages =
166 (*env)->GetFieldID(env, tmpClass, "images", "[J");
167 sunFontIDs.glyphListUsePos =
168 (*env)->GetFieldID(env, tmpClass, "usePositions", "Z");
169 sunFontIDs.glyphListPos =
170 (*env)->GetFieldID(env, tmpClass, "positions", "[F");
171 sunFontIDs.lcdRGBOrder =
172 (*env)->GetFieldID(env, tmpClass, "lcdRGBOrder", "Z");
173 sunFontIDs.lcdSubPixPos =
174 (*env)->GetFieldID(env, tmpClass, "lcdSubPixPos", "Z");
175
176 initLCDGammaTables();
177 }
178
179 JNIEXPORT FontManagerNativeIDs getSunFontIDs() {
180 return sunFontIDs;
181 }
182
183 /*
184 * Class: sun_font_StrikeCache
185 * Method: freeIntPointer
186 * Signature: (I)V
187 */
188 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeIntPointer
189 (JNIEnv *env, jclass cacheClass, jint ptr) {
190
191 /* Note this is used for freeing a glyph which was allocated
192 * but never placed into the glyph cache. The caller holds the
193 * only reference, therefore it is unnecessary to invalidate any
194 * accelerated glyph cache cells as we do in freeInt/LongMemory().
195 */
196 if (ptr != 0) {
197 free((void*)ptr);
198 }
199 }
200
201 /*
202 * Class: sun_font_StrikeCache
203 * Method: freeLongPointer
204 * Signature: (J)V
205 */
206 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeLongPointer
207 (JNIEnv *env, jclass cacheClass, jlong ptr) {
208
209 /* Note this is used for freeing a glyph which was allocated
210 * but never placed into the glyph cache. The caller holds the
211 * only reference, therefore it is unnecessary to invalidate any
212 * accelerated glyph cache cells as we do in freeInt/LongMemory().
213 */
214 if (ptr != 0L) {
215 free(jlong_to_ptr(ptr));
216 }
217 }
218
219 /*
220 * Class: sun_font_StrikeCache
221 * Method: freeIntMemory
222 * Signature: ([I)V
223 */
224 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeIntMemory
225 (JNIEnv *env, jclass cacheClass, jintArray jmemArray, jlong pContext) {
226
227 int len = (*env)->GetArrayLength(env, jmemArray);
228 jint* ptrs =
229 (jint*)(*env)->GetPrimitiveArrayCritical(env, jmemArray, NULL);
230 int i;
231
232 if (ptrs) {
233 for (i=0; i< len; i++) {
234 if (ptrs[i] != 0) {
235 GlyphInfo *ginfo = (GlyphInfo *)ptrs[i];
236 if (ginfo->cellInfo != NULL) {
237 // invalidate this glyph's accelerated cache cell
238 AccelGlyphCache_RemoveAllCellInfos(ginfo);
239 }
240 free((void*)ginfo);
241 }
242 }
243 (*env)->ReleasePrimitiveArrayCritical(env, jmemArray, ptrs, JNI_ABORT);
244 }
245 if (!isNullScalerContext(jlong_to_ptr(pContext))) {
246 free(jlong_to_ptr(pContext));
247 }
248 }
249
250 /*
251 * Class: sun_font_StrikeCache
252 * Method: freeLongMemory
253 * Signature: ([J)V
254 */
255 JNIEXPORT void JNICALL Java_sun_font_StrikeCache_freeLongMemory
256 (JNIEnv *env, jclass cacheClass, jlongArray jmemArray, jlong pContext) {
257
258 int len = (*env)->GetArrayLength(env, jmemArray);
259 jlong* ptrs =
260 (jlong*)(*env)->GetPrimitiveArrayCritical(env, jmemArray, NULL);
261 int i;
262
263 if (ptrs) {
264 for (i=0; i< len; i++) {
265 if (ptrs[i] != 0L) {
266 GlyphInfo *ginfo = (GlyphInfo *) jlong_to_ptr(ptrs[i]);
267 if (ginfo->cellInfo != NULL) {
268 AccelGlyphCache_RemoveAllCellInfos(ginfo);
269 }
270 free((void*)ginfo);
271 }
272 }
273 (*env)->ReleasePrimitiveArrayCritical(env, jmemArray, ptrs, JNI_ABORT);
274 }
275 if (!isNullScalerContext(jlong_to_ptr(pContext))) {
276 free(jlong_to_ptr(pContext));
277 }
278 }
279
280 JNIEXPORT void JNICALL
281 Java_sun_font_StrikeCache_getGlyphCacheDescription
282 (JNIEnv *env, jclass cls, jlongArray results) {
283
284 jlong* nresults;
285 GlyphInfo *info;
286 size_t baseAddr;
287
288 if ((*env)->GetArrayLength(env, results) < 10) {
289 return;
290 }
291
292 nresults = (jlong*)(*env)->GetPrimitiveArrayCritical(env, results, NULL);
293 if (nresults == NULL) {
294 return;
295 }
296 info = (GlyphInfo*) calloc(1, sizeof(GlyphInfo));
297 if (info == NULL) {
298 (*env)->ReleasePrimitiveArrayCritical(env, results, nresults, 0);
299 return;
300 }
301 baseAddr = (size_t)info;
302 nresults[0] = sizeof(void*);
303 nresults[1] = sizeof(GlyphInfo);
304 nresults[2] = 0;
305 nresults[3] = (size_t)&(info->advanceY)-baseAddr;
306 nresults[4] = (size_t)&(info->width)-baseAddr;
307 nresults[5] = (size_t)&(info->height)-baseAddr;
308 nresults[6] = (size_t)&(info->rowBytes)-baseAddr;
309 nresults[7] = (size_t)&(info->topLeftX)-baseAddr;
310 nresults[8] = (size_t)&(info->topLeftY)-baseAddr;
311 nresults[9] = (size_t)&(info->image)-baseAddr;
312 nresults[10] = (jlong)(uintptr_t)info; /* invisible glyph */
313 (*env)->ReleasePrimitiveArrayCritical(env, results, nresults, 0);
314 }
315
316 JNIEXPORT TTLayoutTableCache* newLayoutTableCache() {
317 TTLayoutTableCache* ltc = calloc(1, sizeof(TTLayoutTableCache));
318 if (ltc) {
319 ltc->gsub_len = -1;
320 ltc->gpos_len = -1;
321 ltc->gdef_len = -1;
322 ltc->mort_len = -1;
323 ltc->kern_len = -1;
324 }
325 return ltc;
326 }
327
328 JNIEXPORT void freeLayoutTableCache(TTLayoutTableCache* ltc) {
329 if (ltc) {
330 if (ltc->gsub) free(ltc->gsub);
331 if (ltc->gpos) free(ltc->gpos);
332 if (ltc->gdef) free(ltc->gdef);
333 if (ltc->mort) free(ltc->mort);
334 if (ltc->kern) free(ltc->kern);
335 if (ltc->kernPairs) free(ltc->kernPairs);
336 free(ltc);
337 }
338 }