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/*
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* Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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#include "SurfaceData.h"
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#include "jni_util.h"
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#include "Disposer.h"
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#include "malloc.h"
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#include "string.h"
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/**
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* This include file contains information on how to use a SurfaceData
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* object from native code.
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*/
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static jclass pInvalidPipeClass;
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static jclass pNullSurfaceDataClass;
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static jfieldID pDataID;
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static jfieldID allGrayID;
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jfieldID validID;
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GeneralDisposeFunc SurfaceData_DisposeOps;
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#define InitClass(var, env, name) \
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do { \
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var = (*env)->FindClass(env, name); \
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if (var == NULL) { \
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return; \
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} \
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} while (0)
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#define InitField(var, env, jcl, name, type) \
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do { \
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var = (*env)->GetFieldID(env, jcl, name, type); \
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if (var == NULL) { \
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return; \
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} \
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} while (0)
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#define InitGlobalClassRef(var, env, name) \
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do { \
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jobject jtmp; \
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InitClass(jtmp, env, name); \
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var = (*env)->NewGlobalRef(env, jtmp); \
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if (var == NULL) { \
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return; \
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} \
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} while (0)
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/*
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* Class: sun_java2d_SurfaceData
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* Method: initIDs
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL
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Java_sun_java2d_SurfaceData_initIDs(JNIEnv *env, jclass sd)
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{
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jclass pICMClass;
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InitGlobalClassRef(pInvalidPipeClass, env,
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"sun/java2d/InvalidPipeException");
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InitGlobalClassRef(pNullSurfaceDataClass, env,
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"sun/java2d/NullSurfaceData");
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InitField(pDataID, env, sd, "pData", "J");
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InitField(validID, env, sd, "valid", "Z");
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InitClass(pICMClass, env, "java/awt/image/IndexColorModel");
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InitField(allGrayID, env, pICMClass, "allgrayopaque", "Z");
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}
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/*
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* Class: sun_java2d_SurfaceData
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* Method: isOpaqueGray
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* Signature: ()Z
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*/
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JNIEXPORT jboolean JNICALL
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Java_sun_java2d_SurfaceData_isOpaqueGray(JNIEnv *env, jclass sdClass,
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jobject icm)
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{
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if (icm == NULL) {
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return JNI_FALSE;
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}
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return (*env)->GetBooleanField(env, icm, allGrayID);
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}
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static SurfaceDataOps *
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GetSDOps(JNIEnv *env, jobject sData, jboolean callSetup)
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{
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SurfaceDataOps *ops;
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if (JNU_IsNull(env, sData)) {
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JNU_ThrowNullPointerException(env, "surfaceData");
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return NULL;
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}
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ops = (SurfaceDataOps *)JNU_GetLongFieldAsPtr(env, sData, pDataID);
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if (ops == NULL) {
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if (!(*env)->ExceptionOccurred(env) &&
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!(*env)->IsInstanceOf(env, sData, pNullSurfaceDataClass))
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{
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if (!(*env)->GetBooleanField(env, sData, validID)) {
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SurfaceData_ThrowInvalidPipeException(env, "invalid data");
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} else {
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JNU_ThrowNullPointerException(env, "native ops missing");
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}
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}
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} else if (callSetup) {
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SurfaceData_InvokeSetup(env, ops);
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}
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return ops;
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}
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JNIEXPORT SurfaceDataOps * JNICALL
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SurfaceData_GetOps(JNIEnv *env, jobject sData)
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{
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return GetSDOps(env, sData, JNI_TRUE);
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}
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JNIEXPORT SurfaceDataOps * JNICALL
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SurfaceData_GetOpsNoSetup(JNIEnv *env, jobject sData)
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{
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return GetSDOps(env, sData, JNI_FALSE);
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}
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JNIEXPORT void JNICALL
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SurfaceData_SetOps(JNIEnv *env, jobject sData, SurfaceDataOps *ops)
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{
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if (JNU_GetLongFieldAsPtr(env, sData, pDataID) == NULL) {
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JNU_SetLongFieldFromPtr(env, sData, pDataID, ops);
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/* Register the data for disposal */
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Disposer_AddRecord(env, sData,
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SurfaceData_DisposeOps,
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ptr_to_jlong(ops));
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} else {
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JNU_ThrowInternalError(env, "Attempting to set SurfaceData ops twice");
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}
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}
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JNIEXPORT void JNICALL
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SurfaceData_ThrowInvalidPipeException(JNIEnv *env, const char *msg)
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{
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(*env)->ThrowNew(env, pInvalidPipeClass, msg);
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}
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#define GETMIN(v1, v2) (((v1) > (t=(v2))) && ((v1) = t))
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#define GETMAX(v1, v2) (((v1) < (t=(v2))) && ((v1) = t))
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JNIEXPORT void JNICALL
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SurfaceData_IntersectBounds(SurfaceDataBounds *dst, SurfaceDataBounds *src)
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{
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int t;
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GETMAX(dst->x1, src->x1);
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GETMAX(dst->y1, src->y1);
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GETMIN(dst->x2, src->x2);
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GETMIN(dst->y2, src->y2);
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}
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JNIEXPORT void JNICALL
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SurfaceData_IntersectBoundsXYXY(SurfaceDataBounds *bounds,
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jint x1, jint y1, jint x2, jint y2)
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{
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int t;
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GETMAX(bounds->x1, x1);
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GETMAX(bounds->y1, y1);
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GETMIN(bounds->x2, x2);
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GETMIN(bounds->y2, y2);
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}
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JNIEXPORT void JNICALL
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SurfaceData_IntersectBoundsXYWH(SurfaceDataBounds *bounds,
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jint x, jint y, jint w, jint h)
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{
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w = (w <= 0) ? x : x+w;
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if (w < x) {
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w = 0x7fffffff;
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}
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if (bounds->x1 < x) {
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bounds->x1 = x;
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}
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if (bounds->x2 > w) {
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bounds->x2 = w;
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}
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h = (h <= 0) ? y : y+h;
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if (h < y) {
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h = 0x7fffffff;
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}
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if (bounds->y1 < y) {
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bounds->y1 = y;
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}
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if (bounds->y2 > h) {
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bounds->y2 = h;
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}
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}
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JNIEXPORT void JNICALL
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SurfaceData_IntersectBlitBounds(SurfaceDataBounds *src,
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SurfaceDataBounds *dst,
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jint dx, jint dy)
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{
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int t;
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GETMAX(dst->x1, src->x1 + dx);
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GETMAX(dst->y1, src->y1 + dy);
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GETMIN(dst->x2, src->x2 + dx);
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GETMIN(dst->y2, src->y2 + dy);
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GETMAX(src->x1, dst->x1 - dx);
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GETMAX(src->y1, dst->y1 - dy);
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GETMIN(src->x2, dst->x2 - dx);
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GETMIN(src->y2, dst->y2 - dy);
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}
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SurfaceDataOps *SurfaceData_InitOps(JNIEnv *env, jobject sData, int opsSize)
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{
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SurfaceDataOps *ops = malloc(opsSize);
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SurfaceData_SetOps(env, sData, ops);
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if (ops != NULL) {
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memset(ops, 0, opsSize);
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ops->sdObject = (*env)->NewWeakGlobalRef(env, sData);
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}
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return ops;
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}
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void SurfaceData_DisposeOps(JNIEnv *env, jlong ops)
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{
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if (ops != 0) {
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SurfaceDataOps *sdops = (SurfaceDataOps*)jlong_to_ptr(ops);
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/* Invoke the ops-specific disposal function */
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SurfaceData_InvokeDispose(env, sdops);
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(*env)->DeleteWeakGlobalRef(env, sdops->sdObject);
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free(sdops);
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}
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}
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