1 /*
   2  * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 
  27 #include "PiscesSurface.h"
  28 
  29 #include <PiscesUtil.h>
  30 
  31 #include <PiscesSysutils.h>
  32 
  33 static INLINE void surface_dispose(Surface* surface);
  34 
  35 static INLINE void surface_setRGB(Surface* dstSurface, jint x, jint y,
  36                                   jint width, jint height, jint* data,
  37                                   jint scanLength);
  38 
  39 
  40 static void setRGB(jint* src, jint srcScanLength, jint* dst, jint dstScanLength,
  41                    jint width, jint height);
  42 
  43 
  44 static INLINE void
  45 surface_dispose(Surface* surface) {
  46     my_free(surface);
  47 }
  48 
  49 static INLINE void
  50 surface_setRGB(Surface* dstSurface, jint x, jint y,
  51                jint width, jint height, jint* data, jint scanLength) {
  52     if (dstSurface->data == NULL) return;
  53     setRGB((jint*)dstSurface->data + y * dstSurface->width + x, 
  54            dstSurface->width, data, scanLength, width, height);
  55 }
  56 
  57 
  58 static void
  59 setRGB(jint* dst, jint dstScanLength, jint* src, jint srcScanLength,
  60        jint width, jint height) {
  61     jint srcScanRest = srcScanLength - width;
  62     jint dstScanRest = dstScanLength - width;
  63 
  64     for (; height > 0; --height) {
  65         jint w2 = width;
  66         for (; w2 > 0; --w2) {
  67             *dst++ = *src++;
  68         }
  69         src += srcScanRest;
  70         dst += dstScanRest;
  71     }
  72 }
  73