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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/* Header for class sun_font_SunLayoutEngine */
#include <jni_util.h>
#include <stdlib.h>
#include "FontInstanceAdapter.h"
#include "LayoutEngine.h"
#include "sun_font_SunLayoutEngine.h"
#include "sunfontids.h"
void getFloat(JNIEnv* env, jobject pt, jfloat &x, jfloat &y) {
x = env->GetFloatField(pt, sunFontIDs.xFID);
y = env->GetFloatField(pt, sunFontIDs.yFID);
}
void putFloat(JNIEnv* env, jobject pt, jfloat x, jfloat y) {
env->SetFloatField(pt, sunFontIDs.xFID, x);
env->SetFloatField(pt, sunFontIDs.yFID, y);
}
static jclass gvdClass = 0;
static const char* gvdClassName = "sun/font/GlyphLayout$GVData";
static jfieldID gvdCountFID = 0;
static jfieldID gvdFlagsFID = 0;
static jfieldID gvdGlyphsFID = 0;
static jfieldID gvdPositionsFID = 0;
static jfieldID gvdIndicesFID = 0;
#define TYPO_RTL 0x80000000
#define TYPO_MASK 0x7
JNIEXPORT void JNICALL
Java_sun_font_SunLayoutEngine_initGVIDs
(JNIEnv *env, jclass cls) {
gvdClass = env->FindClass(gvdClassName);
if (!gvdClass) {
JNU_ThrowClassNotFoundException(env, gvdClassName);
return;
}
gvdClass = (jclass)env->NewGlobalRef(gvdClass);
if (!gvdClass) {
JNU_ThrowInternalError(env, "could not create global ref");
return;
}
gvdCountFID = env->GetFieldID(gvdClass, "_count", "I");
if (!gvdCountFID) {
gvdClass = 0;
JNU_ThrowNoSuchFieldException(env, "_count");
return;
}
gvdFlagsFID = env->GetFieldID(gvdClass, "_flags", "I");
if (!gvdFlagsFID) {
gvdClass = 0;
JNU_ThrowNoSuchFieldException(env, "_flags");
return;
}
gvdGlyphsFID = env->GetFieldID(gvdClass, "_glyphs", "[I");
if (!gvdGlyphsFID) {
gvdClass = 0;
JNU_ThrowNoSuchFieldException(env, "_glyphs");
return;
}
gvdPositionsFID = env->GetFieldID(gvdClass, "_positions", "[F");
if (!gvdPositionsFID) {
gvdClass = 0;
JNU_ThrowNoSuchFieldException(env, "_positions");
return;
}
gvdIndicesFID = env->GetFieldID(gvdClass, "_indices", "[I");
if (!gvdIndicesFID) {
gvdClass = 0;
JNU_ThrowNoSuchFieldException(env, "_indices");
return;
}
}
int putGV(JNIEnv* env, jint gmask, jint baseIndex, jobject gvdata, const LayoutEngine* engine, int glyphCount) {
int count = env->GetIntField(gvdata, gvdCountFID);
jarray glyphArray = (jarray)env->GetObjectField(gvdata, gvdGlyphsFID);
if (IS_NULL(glyphArray)) {
JNU_ThrowInternalError(env, "glypharray null");
return 0;
}
jint capacity = env->GetArrayLength(glyphArray);
if (count + glyphCount > capacity) {
JNU_ThrowArrayIndexOutOfBoundsException(env, "");
return 0;
}
jarray posArray = (jarray)env->GetObjectField(gvdata, gvdPositionsFID);
if (IS_NULL(glyphArray)) {
JNU_ThrowInternalError(env, "positions array null");
return 0;
}
jarray inxArray = (jarray)env->GetObjectField(gvdata, gvdIndicesFID);
if (IS_NULL(inxArray)) {
JNU_ThrowInternalError(env, "indices array null");
return 0;
}
int countDelta = 0;
// le_uint32 is the same size as jint... forever, we hope
le_uint32* glyphs = (le_uint32*)env->GetPrimitiveArrayCritical(glyphArray, NULL);
if (glyphs) {
jfloat* positions = (jfloat*)env->GetPrimitiveArrayCritical(posArray, NULL);
if (positions) {
jint* indices = (jint*)env->GetPrimitiveArrayCritical(inxArray, NULL);
if (indices) {
LEErrorCode status = (LEErrorCode)0;
engine->getGlyphs(glyphs + count, gmask, status);
engine->getGlyphPositions(positions + (count * 2), status);
engine->getCharIndices((le_int32*)(indices + count), baseIndex, status);
countDelta = glyphCount;
// !!! need engine->getFlags to signal positions, indices data
/* "0" arg used instead of JNI_COMMIT as we want the carray
* to be freed by any VM that actually passes us a copy.
*/
env->ReleasePrimitiveArrayCritical(inxArray, indices, 0);
}
env->ReleasePrimitiveArrayCritical(posArray, positions, 0);
}
env->ReleasePrimitiveArrayCritical(glyphArray, glyphs, 0);
}
if (countDelta) {
count += countDelta;
env->SetIntField(gvdata, gvdCountFID, count);
}
return 1;
}
/*
* Class: sun_font_SunLayoutEngine
* Method: nativeLayout
* Signature: (Lsun/font/FontStrike;[CIIIIZLjava/awt/geom/Point2D$Float;Lsun/font/GlyphLayout$GVData;)V
*/
JNIEXPORT void JNICALL Java_sun_font_SunLayoutEngine_nativeLayout
(JNIEnv *env, jclass cls, jobject font2d, jobject strike, jfloatArray matrix, jint gmask,
jint baseIndex, jcharArray text, jint start, jint limit, jint min, jint max,
jint script, jint lang, jint typo_flags, jobject pt, jobject gvdata,
jlong upem, jlong layoutTables)
{
// fprintf(stderr, "nl font: %x strike: %x script: %d\n", font2d, strike, script); fflush(stderr);
float mat[4];
env->GetFloatArrayRegion(matrix, 0, 4, mat);
FontInstanceAdapter fia(env, font2d, strike, mat, 72, 72, (le_int32) upem, (TTLayoutTableCache *) layoutTables);
LEErrorCode success = LE_NO_ERROR;
LayoutEngine *engine = LayoutEngine::layoutEngineFactory(&fia, script, lang, typo_flags & TYPO_MASK, success);
if (min < 0) min = 0; if (max < min) max = min; /* defensive coding */
// have to copy, yuck, since code does upcalls now. this will be soooo slow
jint len = max - min;
jchar buffer[256];
jchar* chars = buffer;
if (len > 256) {
size_t size = len * sizeof(jchar);
if (size / sizeof(jchar) != len) {
return;
}
chars = (jchar*)malloc(size);
if (chars == 0) {
return;
}
}
// fprintf(stderr, "nl chars: %x text: %x min %d len %d typo %x\n", chars, text, min, len, typo_flags); fflush(stderr);
env->GetCharArrayRegion(text, min, len, chars);
jfloat x, y;
getFloat(env, pt, x, y);
jboolean rtl = (typo_flags & TYPO_RTL) != 0;
int glyphCount = engine->layoutChars(chars, start - min, limit - start, len, rtl, x, y, success);
// fprintf(stderr, "sle nl len %d -> gc: %d\n", len, glyphCount); fflush(stderr);
engine->getGlyphPosition(glyphCount, x, y, success);
// fprintf(stderr, "layout glyphs: %d x: %g y: %g\n", glyphCount, x, y); fflush(stderr);
if (LE_FAILURE(success)) {
env->SetIntField(gvdata, gvdCountFID, -1); // flag failure
} else {
if (putGV(env, gmask, baseIndex, gvdata, engine, glyphCount)) {
// !!! hmmm, could use current value in positions array of GVData...
putFloat(env, pt, x, y);
}
}
if (chars != buffer) {
free(chars);
}
delete engine;
}
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