JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved.
 * 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.
 */

#include "jni_util.h"
#include "jlong.h"

#include "sun_java2d_loops_FillSpans.h"

#include "GraphicsPrimitiveMgr.h"

/*
 * Class:     sun_java2d_loops_FillSpans
 * Method:    FillSpans
 * Signature: (Lsun/java2d/SunGraphics2D;Lsun/java2d/SurfaceData;Lsun/java2d/pipe/SpanIterator;)V
 */
JNIEXPORT void JNICALL
Java_sun_java2d_loops_FillSpans_FillSpans
    (JNIEnv *env, jobject self,
     jobject sg2d, jobject sData, jint pixel, jlong pIterator, jobject si)
{
    SpanIteratorFuncs *pSpanFuncs;
    SurfaceDataOps *sdOps;
    SurfaceDataRasInfo rasInfo;
    void *siData;
    jint bbox[4];
    NativePrimitive *pPrim;
    CompositeInfo compInfo;

    pSpanFuncs = (SpanIteratorFuncs *) jlong_to_ptr(pIterator);
    if (pSpanFuncs == NULL) {
        JNU_ThrowNullPointerException(env, "native iterator not supplied");
        return;
    }

    pPrim = GetNativePrim(env, self);
    if (pPrim == NULL) {
        return;
    }
    if (pPrim->pCompType->getCompInfo != NULL) {
        GrPrim_Sg2dGetCompInfo(env, sg2d, pPrim, &compInfo);
    }

    sdOps = SurfaceData_GetOps(env, sData);
    if (sdOps == NULL) {
        return;
    }

    siData = (*pSpanFuncs->open)(env, si);

    (*pSpanFuncs->getPathBox)(env, siData, bbox);
    rasInfo.bounds.x1 = bbox[0];
    rasInfo.bounds.y1 = bbox[1];
    rasInfo.bounds.x2 = bbox[2];
    rasInfo.bounds.y2 = bbox[3];

    if (sdOps->Lock(env, sdOps, &rasInfo, pPrim->dstflags) != SD_SUCCESS) {
        /* Lock threw an exception */
        (*pSpanFuncs->close)(env, siData);
        return;
    }
    (*pSpanFuncs->intersectClipBox)(env, siData,
                                    rasInfo.bounds.x1,
                                    rasInfo.bounds.y1,
                                    rasInfo.bounds.x2,
                                    rasInfo.bounds.y2);

    sdOps->GetRasInfo(env, sdOps, &rasInfo);

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