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