1/*
2 * Copyright (c) 2000, 2001, 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 "LineUtils.h"
28
29#include "sun_java2d_loops_DrawRect.h"
30
31/*
32 * Class: sun_java2d_loops_DrawRect
33 * Method: DrawRect
34 * Signature: (Lsun/java2d/SunGraphics2D;Lsun/java2d/SurfaceData;IIII)V
35 */
36JNIEXPORT void JNICALL
37Java_sun_java2d_loops_DrawRect_DrawRect
38 (JNIEnv *env, jobject self,
39 jobject sg2d, jobject sData,
40 jint x, jint y, jint w, jint h)
41{
42 SurfaceDataOps *sdOps;
43 SurfaceDataRasInfo rasInfo;
44 NativePrimitive *pPrim;
45 CompositeInfo compInfo;
46 jint lox, loy, hix, hiy;
47 jint pixel = GrPrim_Sg2dGetPixel(env, sg2d);
48
49 if (w < 0 || h < 0) {
50 return;
51 }
52
53 pPrim = GetNativePrim(env, self);
54 if (pPrim == NULL) {
55 return;
56 }
57 if (pPrim->pCompType->getCompInfo != NULL) {
58 GrPrim_Sg2dGetCompInfo(env, sg2d, pPrim, &compInfo);
59 }
60
61 sdOps = SurfaceData_GetOps(env, sData);
62 if (sdOps == 0) {
63 return;
64 }
65
66 lox = x;
67 loy = y;
68 hix = x + w + 1;
69 hiy = y + h + 1;
70 if (hix < lox) {
71 hix = 0x7fffffff;
72 }
73 if (hiy < loy) {
74 hiy = 0x7fffffff;
75 }
76
77 GrPrim_Sg2dGetClip(env, sg2d, &rasInfo.bounds);
78 if (rasInfo.bounds.x1 < lox) rasInfo.bounds.x1 = lox;
79 if (rasInfo.bounds.y1 < loy) rasInfo.bounds.y1 = loy;
80 if (rasInfo.bounds.x2 > hix) rasInfo.bounds.x2 = hix;
81 if (rasInfo.bounds.y2 > hiy) rasInfo.bounds.y2 = hiy;
82 if (sdOps->Lock(env, sdOps, &rasInfo, pPrim->dstflags) != SD_SUCCESS) {
83 return;
84 }
85
86 if (rasInfo.bounds.x2 > rasInfo.bounds.x1 &&
87 rasInfo.bounds.y2 > rasInfo.bounds.y1)
88 {
89 sdOps->GetRasInfo(env, sdOps, &rasInfo);
90 if (rasInfo.rasBase) {
91 DrawLineFunc *pLine = pPrim->funcs.drawline;
92 int loyin = (loy == rasInfo.bounds.y1);
93 int hiyin = (hiy == rasInfo.bounds.y2);
94 int xsize = (rasInfo.bounds.x2 - rasInfo.bounds.x1);
95 int ysize = (rasInfo.bounds.y2 - rasInfo.bounds.y1 - loyin - hiyin);
96 /*
97 * To avoid drawing the corners twice (both for performance
98 * and because XOR erases them otherwise) and to maximize the
99 * number of pixels we draw in the horizontal portions
100 * which are more cache-friendly, we include the corner
101 * pixels only in the top and bottom segments.
102 * We also protect against degenerate rectangles where we
103 * would draw the same line for top & bottom or left & right.
104 */
105 if (loyin) {
106 /* Line across the top */
107 (*pLine)(&rasInfo,
108 rasInfo.bounds.x1, rasInfo.bounds.y1,
109 pixel, xsize, 0,
110 BUMP_POS_PIXEL, 0, BUMP_NOOP, 0, pPrim, &compInfo);
111 }
112 if (lox == rasInfo.bounds.x1 && ysize > 0) {
113 /* Line down the left side */
114 (*pLine)(&rasInfo,
115 rasInfo.bounds.x1, rasInfo.bounds.y1 + loyin,
116 pixel, ysize, 0,
117 BUMP_POS_SCAN, 0, BUMP_NOOP, 0, pPrim, &compInfo);
118 }
119 if (hix == rasInfo.bounds.x2 && ysize > 0 && lox != hix - 1) {
120 /* Line down the right side */
121 (*pLine)(&rasInfo,
122 rasInfo.bounds.x2 - 1, rasInfo.bounds.y1 + loyin,
123 pixel, ysize, 0,
124 BUMP_POS_SCAN, 0, BUMP_NOOP, 0, pPrim, &compInfo);
125 }
126 if (hiyin && loy != hiy - 1) {
127 /* Line across the bottom */
128 (*pLine)(&rasInfo,
129 rasInfo.bounds.x1, rasInfo.bounds.y2 - 1,
130 pixel, xsize, 0,
131 BUMP_POS_PIXEL, 0, BUMP_NOOP, 0, pPrim, &compInfo);
132 }
133 }
134 SurfaceData_InvokeRelease(env, sdOps, &rasInfo);
135 }
136 SurfaceData_InvokeUnlock(env, sdOps, &rasInfo);
137}
138