Java example source code file (PrinterSurfaceData.m)

This example Java source code file (PrinterSurfaceData.m) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

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Java - Java tags/keywords

jniexport, null, print, printsd_dispose, printsd_finishcgcontext, printsd_getrasinfo, printsd_lock, printsd_releaserasinfo, printsd_startcgcontext, printsd_unlock, quartzsdops, quartzsdops\*, surfacedataops, surfacedatarasinfo

The PrinterSurfaceData.m Java example source code

/*
 * Copyright (c) 2011, 2012, 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.
 */


#import "PrinterSurfaceData.h"
#import <JavaNativeFoundation/JavaNativeFoundation.h>


//#define DEBUG 1
#if defined DEBUG
    #define PRINT(msg) {fprintf(stderr, "%s\n", msg);}
#else
    #define PRINT(msg) {}
#endif

static LockFunc PrintSD_Lock;
static UnlockFunc PrintSD_Unlock;
static GetRasInfoFunc PrintSD_GetRasInfo;
static ReleaseFunc PrintSD_ReleaseRasInfo;
static void flush(JNIEnv *env, QuartzSDOps *qsdo);

static void PrintSD_startCGContext(JNIEnv *env, QuartzSDOps *qsdo, SDRenderType renderType)
{
PRINT(" PrintSD_startCGContext")

    if (qsdo->cgRef != NULL)
    {
        flush(env, qsdo);

        SetUpCGContext(env, qsdo, renderType);
    }
}

static void PrintSD_finishCGContext(JNIEnv *env, QuartzSDOps *qsdo)
{
PRINT("    PrintSD_finishCGContext")

    if (qsdo->cgRef != NULL)
    {
        CompleteCGContext(env, qsdo);
    }
}

static void PrintSD_dispose(JNIEnv *env, SurfaceDataOps *sdo)
{
PRINT(" PrintSD_dispose")
    QuartzSDOps *qsdo = (QuartzSDOps *)sdo;

    (*env)->DeleteGlobalRef(env, qsdo->javaGraphicsStatesObjects);

    if (qsdo->graphicsStateInfo.batchedLines != NULL)
    {
        free(qsdo->graphicsStateInfo.batchedLines);
        qsdo->graphicsStateInfo.batchedLines = NULL;
    }

    qsdo->BeginSurface            = NULL;
    qsdo->FinishSurface            = NULL;
}

JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CPrinterSurfaceData_initOps(JNIEnv *env, jobject jthis, jlong nsRef, jobject jGraphicsState, jobjectArray jGraphicsStateObject, jint width, jint height)
{
JNF_COCOA_ENTER(env);

PRINT("Java_sun_lwawt_macosx_CPrinterSurfaceData_initOps")

    PrintSDOps *psdo = (PrintSDOps*)SurfaceData_InitOps(env, jthis, sizeof(PrintSDOps));
    psdo->nsRef            = (NSGraphicsContext*)jlong_to_ptr(nsRef);
    psdo->width            = width;
    psdo->height        = height;

    QuartzSDOps *qsdo = (QuartzSDOps*)psdo;
    qsdo->BeginSurface            = PrintSD_startCGContext;
    qsdo->FinishSurface            = PrintSD_finishCGContext;
    qsdo->cgRef                    = [psdo->nsRef graphicsPort];

    qsdo->javaGraphicsStates            = (jint*)((*env)->GetDirectBufferAddress(env, jGraphicsState));
    qsdo->javaGraphicsStatesObjects        = (*env)->NewGlobalRef(env, jGraphicsStateObject);

    qsdo->graphicsStateInfo.batchedLines        = NULL;
    qsdo->graphicsStateInfo.batchedLinesCount    = 0;

    SurfaceDataOps *sdo = (SurfaceDataOps*)qsdo;
    sdo->Lock        = PrintSD_Lock;
    sdo->Unlock        = PrintSD_Unlock;
    sdo->GetRasInfo    = PrintSD_GetRasInfo;
    sdo->Release    = PrintSD_ReleaseRasInfo;
    sdo->Setup        = NULL;
    sdo->Dispose    = PrintSD_dispose;

JNF_COCOA_EXIT(env);
}

static jint PrintSD_Lock(JNIEnv *env, SurfaceDataOps *sdo, SurfaceDataRasInfo *pRasInfo, jint lockflags)
{
PRINT(" PrintSD_Lock")
    jint status = SD_FAILURE;

    //QuartzSDOps *qsdo = (QuartzSDOps*)sdo;
    //PrintSD_startCGContext(env, qsdo, SD_Image);

    status = SD_SUCCESS;

    return status;
}
static void PrintSD_Unlock(JNIEnv *env, SurfaceDataOps *sdo, SurfaceDataRasInfo *pRasInfo)
{
PRINT(" PrintSD_Unlock")

    //QuartzSDOps *qsdo = (QuartzSDOps*)sdo;
    //PrintSD_finishCGContext(env, qsdo);
}
static void PrintSD_GetRasInfo(JNIEnv *env, SurfaceDataOps *sdo, SurfaceDataRasInfo *pRasInfo)
{
PRINT(" PrintSD_GetRasInfo")
    PrintSDOps *psdo = (PrintSDOps*)sdo;

    pRasInfo->pixelStride = 4; // ARGB
    pRasInfo->scanStride = psdo->width * pRasInfo->pixelStride;

    pRasInfo->rasBase = NULL; //psdo->dataForSun2D;
}
static void PrintSD_ReleaseRasInfo(JNIEnv *env, SurfaceDataOps *sdo, SurfaceDataRasInfo *pRasInfo)
{
PRINT(" PrintSD_ReleaseRasInfo")

    pRasInfo->pixelStride = 0;
    pRasInfo->scanStride = 0;
    pRasInfo->rasBase = NULL;
}

static void dataProvider_FreeSun2DPixels(void *info, const void *data, size_t size)
{
PRINT("dataProvider_FreeSun2DPixels")
   // CGBitmapFreeData(info);
    free(info);
}
JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CPrinterSurfaceData__1flush
  (JNIEnv *env, jobject jsurfacedata)
{
    flush(env, (QuartzSDOps*)SurfaceData_GetOps(env, jsurfacedata));
}
static void flush(JNIEnv *env, QuartzSDOps *qsdo)
{
}