1/*
2 * Copyright (c) 2000, 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#include "GraphicsPrimitiveMgr.h"
27#include "Region.h"
28
29#include "sun_java2d_loops_MaskBlit.h"
30
31/*
32 * Class: sun_java2d_loops_MaskBlit
33 * Method: MaskBlit
34 * Signature: (Lsun/java2d/SurfaceData;Lsun/java2d/SurfaceData;Ljava/awt/Composite;IIIIII[BII)V
35 */
36JNIEXPORT void JNICALL
37Java_sun_java2d_loops_MaskBlit_MaskBlit
38 (JNIEnv *env, jobject self,
39 jobject srcData, jobject dstData, jobject comp, jobject clip,
40 jint srcx, jint srcy, jint dstx, jint dsty, jint width, jint height,
41 jbyteArray maskArray, jint maskoff, jint maskscan)
42{
43 SurfaceDataOps *srcOps;
44 SurfaceDataOps *dstOps;
45 SurfaceDataRasInfo srcInfo;
46 SurfaceDataRasInfo dstInfo;
47 NativePrimitive *pPrim;
48 CompositeInfo compInfo;
49 RegionData clipInfo;
50
51 pPrim = GetNativePrim(env, self);
52 if (pPrim == NULL) {
53 return;
54 }
55 if (pPrim->pCompType->getCompInfo != NULL) {
56 (*pPrim->pCompType->getCompInfo)(env, &compInfo, comp);
57 }
58 if (Region_GetInfo(env, clip, &clipInfo)) {
59 return;
60 }
61
62 srcOps = SurfaceData_GetOps(env, srcData);
63 if (srcOps == 0) {
64 return;
65 }
66 dstOps = SurfaceData_GetOps(env, dstData);
67 if (dstOps == 0) {
68 return;
69 }
70
71 srcInfo.bounds.x1 = srcx;
72 srcInfo.bounds.y1 = srcy;
73 srcInfo.bounds.x2 = srcx + width;
74 srcInfo.bounds.y2 = srcy + height;
75 dstInfo.bounds.x1 = dstx;
76 dstInfo.bounds.y1 = dsty;
77 dstInfo.bounds.x2 = dstx + width;
78 dstInfo.bounds.y2 = dsty + height;
79 srcx -= dstx;
80 srcy -= dsty;
81 SurfaceData_IntersectBounds(&dstInfo.bounds, &clipInfo.bounds);
82 if (srcOps->Lock(env, srcOps, &srcInfo, pPrim->srcflags) != SD_SUCCESS) {
83 return;
84 }
85 if (dstOps->Lock(env, dstOps, &dstInfo, pPrim->dstflags) != SD_SUCCESS) {
86 SurfaceData_InvokeUnlock(env, srcOps, &srcInfo);
87 return;
88 }
89 SurfaceData_IntersectBlitBounds(&dstInfo.bounds, &srcInfo.bounds,
90 srcx, srcy);
91 Region_IntersectBounds(&clipInfo, &dstInfo.bounds);
92
93 if (!Region_IsEmpty(&clipInfo)) {
94 srcOps->GetRasInfo(env, srcOps, &srcInfo);
95 dstOps->GetRasInfo(env, dstOps, &dstInfo);
96 if (srcInfo.rasBase && dstInfo.rasBase) {
97 SurfaceDataBounds span;
98 unsigned char *pMask =
99 (maskArray
100 ? (*env)->GetPrimitiveArrayCritical(env, maskArray, 0)
101 : 0);
102 jint savesx = srcInfo.bounds.x1;
103 jint savedx = dstInfo.bounds.x1;
104 if (maskArray != NULL && pMask == NULL) {
105 SurfaceData_InvokeRelease(env, dstOps, &dstInfo);
106 SurfaceData_InvokeRelease(env, srcOps, &srcInfo);
107 SurfaceData_InvokeUnlock(env, dstOps, &dstInfo);
108 SurfaceData_InvokeUnlock(env, srcOps, &srcInfo);
109 return;
110 }
111 Region_StartIteration(env, &clipInfo);
112 while (Region_NextIteration(&clipInfo, &span)) {
113 void *pSrc = PtrCoord(srcInfo.rasBase,
114 srcx + span.x1, srcInfo.pixelStride,
115 srcy + span.y1, srcInfo.scanStride);
116 void *pDst = PtrCoord(dstInfo.rasBase,
117 span.x1, dstInfo.pixelStride,
118 span.y1, dstInfo.scanStride);
119 maskoff += ((span.y1 - dsty) * maskscan + (span.x1 - dstx));
120 /*
121 * Fix for 4804375
122 * REMIND: There should probably be a better
123 * way to give the span coordinates to the
124 * inner loop. This is only really needed
125 * for the 1, 2, and 4 bit loops.
126 */
127 srcInfo.bounds.x1 = srcx + span.x1;
128 dstInfo.bounds.x1 = span.x1;
129 (*pPrim->funcs.maskblit)(pDst, pSrc,
130 pMask, maskoff, maskscan,
131 span.x2 - span.x1, span.y2 - span.y1,
132 &dstInfo, &srcInfo,
133 pPrim, &compInfo);
134 }
135 Region_EndIteration(env, &clipInfo);
136 if (pMask) {
137 (*env)->ReleasePrimitiveArrayCritical(env, maskArray,
138 pMask, JNI_ABORT);
139 }
140 srcInfo.bounds.x1 = savesx;
141 dstInfo.bounds.x1 = savedx;
142 }
143 SurfaceData_InvokeRelease(env, dstOps, &dstInfo);
144 SurfaceData_InvokeRelease(env, srcOps, &srcInfo);
145 }
146 SurfaceData_InvokeUnlock(env, dstOps, &dstInfo);
147 SurfaceData_InvokeUnlock(env, srcOps, &srcInfo);
148}
149