| /* |
| * Copyright (c) 2000, 2003, 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 "malloc.h" |
| |
| #include "SurfaceData.h" |
| #include "sun_awt_image_DataBufferNative.h" |
| |
| #include "jni_util.h" |
| #include "debug_trace.h" |
| #include <stdio.h> |
| |
| unsigned char *DBN_GetPixelPointer(JNIEnv *env, jint x, int y, |
| SurfaceDataRasInfo *lockInfo, |
| SurfaceDataOps *ops, int lockFlag) |
| { |
| if (ops == NULL) { |
| return NULL; |
| } |
| |
| lockInfo->bounds.x1 = x; |
| lockInfo->bounds.y1 = y; |
| lockInfo->bounds.x2 = x + 1; |
| lockInfo->bounds.y2 = y + 1; |
| if (ops->Lock(env, ops, lockInfo, lockFlag) != SD_SUCCESS) { |
| return NULL; |
| } |
| ops->GetRasInfo(env, ops, lockInfo); |
| if (lockInfo->rasBase) { |
| unsigned char *pixelPtr = ( |
| (unsigned char*)lockInfo->rasBase + |
| (x * lockInfo->pixelStride + y * lockInfo->scanStride)); |
| return pixelPtr; |
| } |
| SurfaceData_InvokeRelease(env, ops, lockInfo); |
| SurfaceData_InvokeUnlock(env, ops, lockInfo); |
| return NULL; |
| } |
| |
| /* |
| * Class: sun_awt_image_DataBufferNative |
| * Method: getElem |
| * Signature: |
| */ |
| JNIEXPORT jint JNICALL |
| Java_sun_awt_image_DataBufferNative_getElem(JNIEnv *env, jobject dbn, |
| jint x, jint y, jobject sd) |
| { |
| jint returnVal = -1; |
| unsigned char *pixelPtr; |
| SurfaceDataRasInfo lockInfo; |
| SurfaceDataOps *ops; |
| |
| ops = SurfaceData_GetOps(env, sd); |
| |
| if (!(pixelPtr = DBN_GetPixelPointer(env, x, y, &lockInfo, |
| ops, SD_LOCK_READ))) |
| { |
| return returnVal; |
| } |
| switch (lockInfo.pixelStride) { |
| case 4: |
| returnVal = *(int *)pixelPtr; |
| break; |
| /* REMIND: do we need a 3-byte case (for 24-bit) here? */ |
| case 2: |
| returnVal = *(unsigned short *)pixelPtr; |
| break; |
| case 1: |
| returnVal = *pixelPtr; |
| break; |
| default: |
| break; |
| } |
| SurfaceData_InvokeRelease(env, ops, &lockInfo); |
| SurfaceData_InvokeUnlock(env, ops, &lockInfo); |
| return returnVal; |
| } |
| |
| |
| /* |
| * Class: sun_awt_image_DataBufferNative |
| * Method: setElem |
| * Signature: |
| */ |
| JNIEXPORT void JNICALL |
| Java_sun_awt_image_DataBufferNative_setElem(JNIEnv *env, jobject dbn, |
| jint x, jint y, jint val, jobject sd) |
| { |
| SurfaceDataRasInfo lockInfo; |
| SurfaceDataOps *ops; |
| unsigned char *pixelPtr; |
| |
| |
| ops = SurfaceData_GetOps(env, sd); |
| |
| if (!(pixelPtr = DBN_GetPixelPointer(env, x, y, &lockInfo, |
| ops, SD_LOCK_WRITE))) |
| { |
| return; |
| } |
| |
| switch (lockInfo.pixelStride) { |
| case 4: |
| *(int *)pixelPtr = val; |
| break; |
| /* REMIND: do we need a 3-byte case (for 24-bit) here? */ |
| case 2: |
| *(unsigned short *)pixelPtr = (unsigned short)val; |
| break; |
| case 1: |
| *pixelPtr = (unsigned char)val; |
| break; |
| default: |
| break; |
| } |
| SurfaceData_InvokeRelease(env, ops, &lockInfo); |
| SurfaceData_InvokeUnlock(env, ops, &lockInfo); |
| } |