0N/A/*
2362N/A * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
4632N/A#include <stdlib.h>
0N/A
0N/A#include "SurfaceData.h"
0N/A#include "sun_awt_image_DataBufferNative.h"
0N/A
0N/A#include "jni_util.h"
0N/A#include "debug_trace.h"
0N/A#include <stdio.h>
0N/A
0N/Aunsigned char *DBN_GetPixelPointer(JNIEnv *env, jint x, int y,
0N/A SurfaceDataRasInfo *lockInfo,
0N/A SurfaceDataOps *ops, int lockFlag)
0N/A{
0N/A if (ops == NULL) {
0N/A return NULL;
0N/A }
0N/A
0N/A lockInfo->bounds.x1 = x;
0N/A lockInfo->bounds.y1 = y;
0N/A lockInfo->bounds.x2 = x + 1;
0N/A lockInfo->bounds.y2 = y + 1;
0N/A if (ops->Lock(env, ops, lockInfo, lockFlag) != SD_SUCCESS) {
0N/A return NULL;
0N/A }
0N/A ops->GetRasInfo(env, ops, lockInfo);
0N/A if (lockInfo->rasBase) {
0N/A unsigned char *pixelPtr = (
0N/A (unsigned char*)lockInfo->rasBase +
0N/A (x * lockInfo->pixelStride + y * lockInfo->scanStride));
0N/A return pixelPtr;
0N/A }
0N/A SurfaceData_InvokeRelease(env, ops, lockInfo);
0N/A SurfaceData_InvokeUnlock(env, ops, lockInfo);
0N/A return NULL;
0N/A}
0N/A
0N/A/*
0N/A * Class: sun_awt_image_DataBufferNative
0N/A * Method: getElem
0N/A * Signature:
0N/A */
0N/AJNIEXPORT jint JNICALL
0N/AJava_sun_awt_image_DataBufferNative_getElem(JNIEnv *env, jobject dbn,
0N/A jint x, jint y, jobject sd)
0N/A{
0N/A jint returnVal = -1;
0N/A unsigned char *pixelPtr;
0N/A SurfaceDataRasInfo lockInfo;
0N/A SurfaceDataOps *ops;
0N/A
0N/A ops = SurfaceData_GetOps(env, sd);
0N/A
0N/A if (!(pixelPtr = DBN_GetPixelPointer(env, x, y, &lockInfo,
0N/A ops, SD_LOCK_READ)))
0N/A {
0N/A return returnVal;
0N/A }
0N/A switch (lockInfo.pixelStride) {
0N/A case 4:
0N/A returnVal = *(int *)pixelPtr;
0N/A break;
0N/A /* REMIND: do we need a 3-byte case (for 24-bit) here? */
0N/A case 2:
0N/A returnVal = *(unsigned short *)pixelPtr;
0N/A break;
0N/A case 1:
0N/A returnVal = *pixelPtr;
0N/A break;
0N/A default:
0N/A break;
0N/A }
0N/A SurfaceData_InvokeRelease(env, ops, &lockInfo);
0N/A SurfaceData_InvokeUnlock(env, ops, &lockInfo);
0N/A return returnVal;
0N/A}
0N/A
0N/A
0N/A/*
0N/A * Class: sun_awt_image_DataBufferNative
0N/A * Method: setElem
0N/A * Signature:
0N/A */
0N/AJNIEXPORT void JNICALL
0N/AJava_sun_awt_image_DataBufferNative_setElem(JNIEnv *env, jobject dbn,
0N/A jint x, jint y, jint val, jobject sd)
0N/A{
0N/A SurfaceDataRasInfo lockInfo;
0N/A SurfaceDataOps *ops;
0N/A unsigned char *pixelPtr;
0N/A
0N/A
0N/A ops = SurfaceData_GetOps(env, sd);
0N/A
0N/A if (!(pixelPtr = DBN_GetPixelPointer(env, x, y, &lockInfo,
0N/A ops, SD_LOCK_WRITE)))
0N/A {
0N/A return;
0N/A }
0N/A
0N/A switch (lockInfo.pixelStride) {
0N/A case 4:
0N/A *(int *)pixelPtr = val;
0N/A break;
0N/A /* REMIND: do we need a 3-byte case (for 24-bit) here? */
0N/A case 2:
0N/A *(unsigned short *)pixelPtr = (unsigned short)val;
0N/A break;
0N/A case 1:
0N/A *pixelPtr = (unsigned char)val;
0N/A break;
0N/A default:
0N/A break;
0N/A }
0N/A SurfaceData_InvokeRelease(env, ops, &lockInfo);
0N/A SurfaceData_InvokeUnlock(env, ops, &lockInfo);
0N/A}