256 hb_jdk_get_glyph_h_kerning, NULL, NULL);
257 hb_font_funcs_set_glyph_v_kerning_func(ff,
258 hb_jdk_get_glyph_v_kerning, NULL, NULL);
259 hb_font_funcs_set_glyph_extents_func(ff,
260 hb_jdk_get_glyph_extents, NULL, NULL);
261 hb_font_funcs_set_glyph_contour_point_func(ff,
262 hb_jdk_get_glyph_contour_point, NULL, NULL);
263 hb_font_funcs_set_glyph_name_func(ff,
264 hb_jdk_get_glyph_name, NULL, NULL);
265 hb_font_funcs_set_glyph_from_name_func(ff,
266 hb_jdk_get_glyph_from_name, NULL, NULL);
267 hb_font_funcs_make_immutable(ff); // done setting functions.
268 jdk_ffuncs = ff;
269 }
270 return jdk_ffuncs;
271 }
272
273 static void _do_nothing(void) {
274 }
275
276 static hb_blob_t *
277 reference_table(hb_face_t *face HB_UNUSED, hb_tag_t tag, void *user_data) {
278
279 JDKFontInfo *jdkFontInfo = (JDKFontInfo*)user_data;
280 JNIEnv* env = jdkFontInfo->env;
281 jobject font2D = jdkFontInfo->font2D;
282 jsize length;
283 jbyte* buffer;
284
285 // HB_TAG_NONE is 0 and is used to get the whole font file.
286 // It is not expected not be needed for JDK.
287 if (tag == 0) {
288 return NULL;
289 }
290 jbyteArray tableBytes = (jbyteArray)
291 env->CallObjectMethod(font2D, sunFontIDs.getTableBytesMID, tag);
292 if (tableBytes == NULL) {
293 return NULL;
294 }
295 length = env->GetArrayLength(tableBytes);
296 buffer = (jbyte *)calloc(length, sizeof(jbyte));
297 env->GetByteArrayRegion(tableBytes, 0, length, buffer);
298
299 return hb_blob_create((const char *)buffer, length,
300 HB_MEMORY_MODE_WRITABLE,
301 buffer, free);
302 }
303
304 hb_face_t*
305 hb_jdk_face_create(JDKFontInfo *jdkFontInfo,
306 hb_destroy_func_t destroy) {
307
308 hb_face_t *face =
309 hb_face_create_for_tables(reference_table, jdkFontInfo, destroy);
310
311 return face;
312 }
313
314 static hb_font_t* _hb_jdk_font_create(JDKFontInfo *jdkFontInfo,
315 hb_destroy_func_t destroy) {
316
317 hb_font_t *font;
318 hb_face_t *face;
319
320 face = hb_jdk_face_create(jdkFontInfo, destroy);
321 font = hb_font_create(face);
322 hb_face_destroy (face);
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256 hb_jdk_get_glyph_h_kerning, NULL, NULL);
257 hb_font_funcs_set_glyph_v_kerning_func(ff,
258 hb_jdk_get_glyph_v_kerning, NULL, NULL);
259 hb_font_funcs_set_glyph_extents_func(ff,
260 hb_jdk_get_glyph_extents, NULL, NULL);
261 hb_font_funcs_set_glyph_contour_point_func(ff,
262 hb_jdk_get_glyph_contour_point, NULL, NULL);
263 hb_font_funcs_set_glyph_name_func(ff,
264 hb_jdk_get_glyph_name, NULL, NULL);
265 hb_font_funcs_set_glyph_from_name_func(ff,
266 hb_jdk_get_glyph_from_name, NULL, NULL);
267 hb_font_funcs_make_immutable(ff); // done setting functions.
268 jdk_ffuncs = ff;
269 }
270 return jdk_ffuncs;
271 }
272
273 static void _do_nothing(void) {
274 }
275
276 static void _free_nothing(void*) {
277 }
278
279 static hb_blob_t *
280 reference_table(hb_face_t *face HB_UNUSED, hb_tag_t tag, void *user_data) {
281
282 JDKFontInfo *jdkFontInfo = (JDKFontInfo*)user_data;
283 JNIEnv* env = jdkFontInfo->env;
284 jobject font2D = jdkFontInfo->font2D;
285 jsize length = 0;
286 void* buffer = NULL;
287 int cacheIdx = 0;
288
289 // HB_TAG_NONE is 0 and is used to get the whole font file.
290 // It is not expected to be needed for JDK.
291 if (tag == 0 || jdkFontInfo->layoutTables == NULL) {
292 return NULL;
293 }
294
295 for (cacheIdx=0; cacheIdx<LAYOUTCACHE_ENTRIES; cacheIdx++) {
296 if (tag == jdkFontInfo->layoutTables->entries[cacheIdx].tag) break;
297 }
298
299 if (cacheIdx < LAYOUTCACHE_ENTRIES) { // if found
300 if (jdkFontInfo->layoutTables->entries[cacheIdx].len != -1) {
301 length = jdkFontInfo->layoutTables->entries[cacheIdx].len;
302 buffer = (void*)jdkFontInfo->layoutTables->entries[cacheIdx].ptr;
303 }
304 }
305
306 if (buffer == NULL) {
307 jbyteArray tableBytes = (jbyteArray)
308 env->CallObjectMethod(font2D, sunFontIDs.getTableBytesMID, tag);
309 if (tableBytes == NULL) {
310 return NULL;
311 }
312 length = env->GetArrayLength(tableBytes);
313 buffer = calloc(length, sizeof(jbyte));
314 env->GetByteArrayRegion(tableBytes, 0, length, (jbyte*)buffer);
315
316 if (cacheIdx >= LAYOUTCACHE_ENTRIES) { // not a cacheable table
317 return hb_blob_create((const char *)buffer, length,
318 HB_MEMORY_MODE_WRITABLE,
319 buffer, free);
320 } else {
321 jdkFontInfo->layoutTables->entries[cacheIdx].len = length;
322 jdkFontInfo->layoutTables->entries[cacheIdx].ptr = buffer;
323 }
324 }
325
326 return hb_blob_create((const char *)buffer, length,
327 HB_MEMORY_MODE_READONLY,
328 NULL, _free_nothing);
329 }
330
331
332
333 hb_face_t*
334 hb_jdk_face_create(JDKFontInfo *jdkFontInfo,
335 hb_destroy_func_t destroy) {
336
337 hb_face_t *face =
338 hb_face_create_for_tables(reference_table, jdkFontInfo, destroy);
339
340 return face;
341 }
342
343 static hb_font_t* _hb_jdk_font_create(JDKFontInfo *jdkFontInfo,
344 hb_destroy_func_t destroy) {
345
346 hb_font_t *font;
347 hb_face_t *face;
348
349 face = hb_jdk_face_create(jdkFontInfo, destroy);
350 font = hb_font_create(face);
351 hb_face_destroy (face);
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