static Boolean initGVIDs(JNIEnv *env, jobject gv) {
if (g_gvClass == NULL) {
g_gvClass = env->GetObjectClass(gv);
if (g_gvClass == NULL) {
JNU_ThrowClassNotFoundException(env, "No GlyphVector class");
return false;
}
}
if (g_gvPositions != NULL && g_gvGlyphs != NULL) {
return true;
}
g_gvPositions = env->GetFieldID(g_gvClass, "positions", "[F");
g_gvGlyphs = env->GetFieldID(g_gvClass, "glyphs", "[I");
g_gvCharIndices = env->GetFieldID(g_gvClass, "charIndices", "[I");
if (g_gvPositions == NULL || g_gvGlyphs == NULL || g_gvCharIndices == NULL) {
JNU_ThrowNoSuchFieldException(env,
"GlyphVector positions, glyphs, or charIndices");
return false;
}
return true;
}
/*
* Find a class for the given class name and return a global reference to the
* class.
*/
static jobject
findClass(const char *className)
{
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
jclass classClass;
jobject objectClass;
classClass = (*env)->FindClass(env, className);
objectClass = (*env)->NewGlobalRef(env,classClass);
if (JNU_IsNull(env, objectClass)) {
JNU_ThrowClassNotFoundException(env, className);
}
return objectClass;
}
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;
}
}
/*
* Class: sun_awt_X11RemoteOffScreenImage
* Method: initIDs
* Signature: ()V
*/
JNIEXPORT void JNICALL
Java_sun_awt_motif_X11RemoteOffScreenImage_initIDs(JNIEnv *env, jclass bisd)
{
static char *bimgName = "java/awt/image/BufferedImage";
jclass bimg = (*env)->FindClass(env, bimgName);
if (JNU_IsNull(env, bimg)) {
JNU_ThrowClassNotFoundException(env, bimgName);
return;
}
sDataID = (*env)->GetFieldID(env, bimg, "sData", "Lsun/java2d/SurfaceData;");
if (sDataID == 0) {
JNU_ThrowInternalError(env, "Could not get field IDs");
}
rasterID = (*env)->GetFieldID(env, bimg, "raster", "Ljava/awt/image/WritableRaster;");
if (rasterID == 0) {
JNU_ThrowInternalError(env, "Could not get field IDs");
}
}